| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term * |
| * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * |
| * Copyright (C) 2004-2016 Emulex. All rights reserved. * |
| * EMULEX and SLI are trademarks of Emulex. * |
| * www.broadcom.com * |
| * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
| * * |
| * This program is free software; you can redistribute it and/or * |
| * modify it under the terms of version 2 of the GNU General * |
| * Public License as published by the Free Software Foundation. * |
| * This program is distributed in the hope that it will be useful. * |
| * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| * more details, a copy of which can be found in the file COPYING * |
| * included with this package. * |
| *******************************************************************/ |
| /* See Fibre Channel protocol T11 FC-LS for details */ |
| #include <linux/blkdev.h> |
| #include <linux/pci.h> |
| #include <linux/slab.h> |
| #include <linux/interrupt.h> |
| #include <linux/delay.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_transport_fc.h> |
| #include <uapi/scsi/fc/fc_fs.h> |
| #include <uapi/scsi/fc/fc_els.h> |
| |
| #include "lpfc_hw4.h" |
| #include "lpfc_hw.h" |
| #include "lpfc_sli.h" |
| #include "lpfc_sli4.h" |
| #include "lpfc_nl.h" |
| #include "lpfc_disc.h" |
| #include "lpfc_scsi.h" |
| #include "lpfc.h" |
| #include "lpfc_logmsg.h" |
| #include "lpfc_crtn.h" |
| #include "lpfc_vport.h" |
| #include "lpfc_debugfs.h" |
| |
| static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, |
| struct lpfc_iocbq *); |
| static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
| struct lpfc_iocbq *); |
| static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
| static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, |
| struct lpfc_nodelist *ndlp, uint8_t retry); |
| static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, |
| struct lpfc_iocbq *iocb); |
| static void lpfc_cmpl_els_edc(struct lpfc_hba *phba, |
| struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb); |
| static void lpfc_cmpl_els_uvem(struct lpfc_hba *, struct lpfc_iocbq *, |
| struct lpfc_iocbq *); |
| |
| static int lpfc_max_els_tries = 3; |
| |
| static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport); |
| static void lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max); |
| static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid); |
| |
| /** |
| * lpfc_els_chk_latt - Check host link attention event for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine checks whether there is an outstanding host link |
| * attention event during the discovery process with the @vport. It is done |
| * by reading the HBA's Host Attention (HA) register. If there is any host |
| * link attention events during this @vport's discovery process, the @vport |
| * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall |
| * be issued if the link state is not already in host link cleared state, |
| * and a return code shall indicate whether the host link attention event |
| * had happened. |
| * |
| * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport |
| * state in LPFC_VPORT_READY, the request for checking host link attention |
| * event will be ignored and a return code shall indicate no host link |
| * attention event had happened. |
| * |
| * Return codes |
| * 0 - no host link attention event happened |
| * 1 - host link attention event happened |
| **/ |
| int |
| lpfc_els_chk_latt(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t ha_copy; |
| |
| if (vport->port_state >= LPFC_VPORT_READY || |
| phba->link_state == LPFC_LINK_DOWN || |
| phba->sli_rev > LPFC_SLI_REV3) |
| return 0; |
| |
| /* Read the HBA Host Attention Register */ |
| if (lpfc_readl(phba->HAregaddr, &ha_copy)) |
| return 1; |
| |
| if (!(ha_copy & HA_LATT)) |
| return 0; |
| |
| /* Pending Link Event during Discovery */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0237 Pending Link Event during " |
| "Discovery: State x%x\n", |
| phba->pport->port_state); |
| |
| /* CLEAR_LA should re-enable link attention events and |
| * we should then immediately take a LATT event. The |
| * LATT processing should call lpfc_linkdown() which |
| * will cleanup any left over in-progress discovery |
| * events. |
| */ |
| set_bit(FC_ABORT_DISCOVERY, &vport->fc_flag); |
| |
| if (phba->link_state != LPFC_CLEAR_LA) |
| lpfc_issue_clear_la(phba, vport); |
| |
| return 1; |
| } |
| |
| static bool lpfc_is_els_acc_rsp(struct lpfc_dmabuf *buf) |
| { |
| struct fc_els_ls_acc *rsp = buf->virt; |
| |
| if (rsp && rsp->la_cmd == ELS_LS_ACC) |
| return true; |
| return false; |
| } |
| |
| /** |
| * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @expect_rsp: flag indicating whether response is expected. |
| * @cmd_size: size of the ELS command. |
| * @retry: number of retries to the command when it fails. |
| * @ndlp: pointer to a node-list data structure. |
| * @did: destination identifier. |
| * @elscmd: the ELS command code. |
| * |
| * This routine is used for allocating a lpfc-IOCB data structure from |
| * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters |
| * passed into the routine for discovery state machine to issue an Extended |
| * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation |
| * and preparation routine that is used by all the discovery state machine |
| * routines and the ELS command-specific fields will be later set up by |
| * the individual discovery machine routines after calling this routine |
| * allocating and preparing a generic IOCB data structure. It fills in the |
| * Buffer Descriptor Entries (BDEs), allocates buffers for both command |
| * payload and response payload (if expected). The reference count on the |
| * ndlp is incremented by 1 and the reference to the ndlp is put into |
| * ndlp of the IOCB data structure for this IOCB to hold the ndlp |
| * reference for the command's callback function to access later. |
| * |
| * Return code |
| * Pointer to the newly allocated/prepared els iocb data structure |
| * NULL - when els iocb data structure allocation/preparation failed |
| **/ |
| struct lpfc_iocbq * |
| lpfc_prep_els_iocb(struct lpfc_vport *vport, u8 expect_rsp, |
| u16 cmd_size, u8 retry, |
| struct lpfc_nodelist *ndlp, u32 did, |
| u32 elscmd) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *elsiocb; |
| struct lpfc_dmabuf *pcmd, *prsp, *pbuflist, *bmp; |
| struct ulp_bde64_le *bpl; |
| u32 timeout = 0; |
| |
| if (!lpfc_is_link_up(phba)) |
| return NULL; |
| |
| /* Allocate buffer for command iocb */ |
| elsiocb = lpfc_sli_get_iocbq(phba); |
| if (!elsiocb) |
| return NULL; |
| |
| /* |
| * If this command is for fabric controller and HBA running |
| * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. |
| */ |
| if (did == Fabric_DID && |
| test_bit(HBA_FIP_SUPPORT, &phba->hba_flag) && |
| (elscmd == ELS_CMD_FLOGI || |
| elscmd == ELS_CMD_FDISC || |
| elscmd == ELS_CMD_LOGO)) |
| switch (elscmd) { |
| case ELS_CMD_FLOGI: |
| elsiocb->cmd_flag |= |
| ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) |
| & LPFC_FIP_ELS_ID_MASK); |
| break; |
| case ELS_CMD_FDISC: |
| elsiocb->cmd_flag |= |
| ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) |
| & LPFC_FIP_ELS_ID_MASK); |
| break; |
| case ELS_CMD_LOGO: |
| elsiocb->cmd_flag |= |
| ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) |
| & LPFC_FIP_ELS_ID_MASK); |
| break; |
| } |
| else |
| elsiocb->cmd_flag &= ~LPFC_FIP_ELS_ID_MASK; |
| |
| /* fill in BDEs for command */ |
| /* Allocate buffer for command payload */ |
| pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL); |
| if (pcmd) |
| pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); |
| if (!pcmd || !pcmd->virt) |
| goto els_iocb_free_pcmb_exit; |
| |
| INIT_LIST_HEAD(&pcmd->list); |
| |
| /* Allocate buffer for response payload */ |
| if (expect_rsp) { |
| prsp = kmalloc(sizeof(*prsp), GFP_KERNEL); |
| if (prsp) |
| prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
| &prsp->phys); |
| if (!prsp || !prsp->virt) |
| goto els_iocb_free_prsp_exit; |
| INIT_LIST_HEAD(&prsp->list); |
| } else { |
| prsp = NULL; |
| } |
| |
| /* Allocate buffer for Buffer ptr list */ |
| pbuflist = kmalloc(sizeof(*pbuflist), GFP_KERNEL); |
| if (pbuflist) |
| pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
| &pbuflist->phys); |
| if (!pbuflist || !pbuflist->virt) |
| goto els_iocb_free_pbuf_exit; |
| |
| INIT_LIST_HEAD(&pbuflist->list); |
| |
| if (expect_rsp) { |
| switch (elscmd) { |
| case ELS_CMD_FLOGI: |
| timeout = FF_DEF_RATOV * 2; |
| break; |
| case ELS_CMD_LOGO: |
| timeout = phba->fc_ratov; |
| break; |
| default: |
| timeout = phba->fc_ratov * 2; |
| } |
| |
| /* Fill SGE for the num bde count */ |
| elsiocb->num_bdes = 2; |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| bmp = pcmd; |
| else |
| bmp = pbuflist; |
| |
| lpfc_sli_prep_els_req_rsp(phba, elsiocb, vport, bmp, cmd_size, did, |
| elscmd, timeout, expect_rsp); |
| |
| bpl = (struct ulp_bde64_le *)pbuflist->virt; |
| bpl->addr_low = cpu_to_le32(putPaddrLow(pcmd->phys)); |
| bpl->addr_high = cpu_to_le32(putPaddrHigh(pcmd->phys)); |
| bpl->type_size = cpu_to_le32(cmd_size); |
| bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); |
| |
| if (expect_rsp) { |
| bpl++; |
| bpl->addr_low = cpu_to_le32(putPaddrLow(prsp->phys)); |
| bpl->addr_high = cpu_to_le32(putPaddrHigh(prsp->phys)); |
| bpl->type_size = cpu_to_le32(FCELSSIZE); |
| bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64); |
| } |
| |
| elsiocb->cmd_dmabuf = pcmd; |
| elsiocb->bpl_dmabuf = pbuflist; |
| elsiocb->retry = retry; |
| elsiocb->vport = vport; |
| elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
| |
| if (prsp) |
| list_add(&prsp->list, &pcmd->list); |
| if (expect_rsp) { |
| /* Xmit ELS command <elsCmd> to remote NPORT <did> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0116 Xmit ELS command x%x to remote " |
| "NPORT x%x I/O tag: x%x, port state:x%x " |
| "rpi x%x fc_flag:x%lx\n", |
| elscmd, did, elsiocb->iotag, |
| vport->port_state, ndlp->nlp_rpi, |
| vport->fc_flag); |
| } else { |
| /* Xmit ELS response <elsCmd> to remote NPORT <did> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0117 Xmit ELS response x%x to remote " |
| "NPORT x%x I/O tag: x%x, size: x%x " |
| "port_state x%x rpi x%x fc_flag x%lx\n", |
| elscmd, ndlp->nlp_DID, elsiocb->iotag, |
| cmd_size, vport->port_state, |
| ndlp->nlp_rpi, vport->fc_flag); |
| } |
| |
| return elsiocb; |
| |
| els_iocb_free_pbuf_exit: |
| if (expect_rsp) |
| lpfc_mbuf_free(phba, prsp->virt, prsp->phys); |
| kfree(pbuflist); |
| |
| els_iocb_free_prsp_exit: |
| lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
| kfree(prsp); |
| |
| els_iocb_free_pcmb_exit: |
| kfree(pcmd); |
| lpfc_sli_release_iocbq(phba, elsiocb); |
| return NULL; |
| } |
| |
| /** |
| * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine issues a fabric registration login for a @vport. An |
| * active ndlp node with Fabric_DID must already exist for this @vport. |
| * The routine invokes two mailbox commands to carry out fabric registration |
| * login through the HBA firmware: the first mailbox command requests the |
| * HBA to perform link configuration for the @vport; and the second mailbox |
| * command requests the HBA to perform the actual fabric registration login |
| * with the @vport. |
| * |
| * Return code |
| * 0 - successfully issued fabric registration login for @vport |
| * -ENXIO -- failed to issue fabric registration login for @vport |
| **/ |
| int |
| lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mbox; |
| struct lpfc_nodelist *ndlp; |
| struct serv_parm *sp; |
| int rc; |
| int err = 0; |
| |
| sp = &phba->fc_fabparam; |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp) { |
| err = 1; |
| goto fail; |
| } |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) { |
| err = 2; |
| goto fail; |
| } |
| |
| vport->port_state = LPFC_FABRIC_CFG_LINK; |
| lpfc_config_link(phba, mbox); |
| mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| mbox->vport = vport; |
| |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| err = 3; |
| goto fail_free_mbox; |
| } |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) { |
| err = 4; |
| goto fail; |
| } |
| rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, |
| ndlp->nlp_rpi); |
| if (rc) { |
| err = 5; |
| goto fail_free_mbox; |
| } |
| |
| mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; |
| mbox->vport = vport; |
| /* increment the reference count on ndlp to hold reference |
| * for the callback routine. |
| */ |
| mbox->ctx_ndlp = lpfc_nlp_get(ndlp); |
| if (!mbox->ctx_ndlp) { |
| err = 6; |
| goto fail_free_mbox; |
| } |
| |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| err = 7; |
| goto fail_issue_reg_login; |
| } |
| |
| return 0; |
| |
| fail_issue_reg_login: |
| /* decrement the reference count on ndlp just incremented |
| * for the failed mbox command. |
| */ |
| lpfc_nlp_put(ndlp); |
| fail_free_mbox: |
| lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); |
| fail: |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0249 Cannot issue Register Fabric login: Err %d\n", |
| err); |
| return -ENXIO; |
| } |
| |
| /** |
| * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for |
| * the @vport. This mailbox command is necessary for SLI4 port only. |
| * |
| * Return code |
| * 0 - successfully issued REG_VFI for @vport |
| * A failure code otherwise. |
| **/ |
| int |
| lpfc_issue_reg_vfi(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mboxq = NULL; |
| struct lpfc_nodelist *ndlp; |
| struct lpfc_dmabuf *dmabuf = NULL; |
| int rc = 0; |
| |
| /* move forward in case of SLI4 FC port loopback test and pt2pt mode */ |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| !(phba->link_flag & LS_LOOPBACK_MODE) && |
| !test_bit(FC_PT2PT, &vport->fc_flag)) { |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp) { |
| rc = -ENODEV; |
| goto fail; |
| } |
| } |
| |
| mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mboxq) { |
| rc = -ENOMEM; |
| goto fail; |
| } |
| |
| /* Supply CSP's only if we are fabric connect or pt-to-pt connect */ |
| if (test_bit(FC_FABRIC, &vport->fc_flag) || |
| test_bit(FC_PT2PT, &vport->fc_flag)) { |
| rc = lpfc_mbox_rsrc_prep(phba, mboxq); |
| if (rc) { |
| rc = -ENOMEM; |
| goto fail_mbox; |
| } |
| dmabuf = mboxq->ctx_buf; |
| memcpy(dmabuf->virt, &phba->fc_fabparam, |
| sizeof(struct serv_parm)); |
| } |
| |
| vport->port_state = LPFC_FABRIC_CFG_LINK; |
| if (dmabuf) { |
| lpfc_reg_vfi(mboxq, vport, dmabuf->phys); |
| /* lpfc_reg_vfi memsets the mailbox. Restore the ctx_buf. */ |
| mboxq->ctx_buf = dmabuf; |
| } else { |
| lpfc_reg_vfi(mboxq, vport, 0); |
| } |
| |
| mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; |
| mboxq->vport = vport; |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| rc = -ENXIO; |
| goto fail_mbox; |
| } |
| return 0; |
| |
| fail_mbox: |
| lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED); |
| fail: |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0289 Issue Register VFI failed: Err %d\n", rc); |
| return rc; |
| } |
| |
| /** |
| * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for |
| * the @vport. This mailbox command is necessary for SLI4 port only. |
| * |
| * Return code |
| * 0 - successfully issued REG_VFI for @vport |
| * A failure code otherwise. |
| **/ |
| int |
| lpfc_issue_unreg_vfi(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mboxq; |
| int rc; |
| |
| mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mboxq) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2556 UNREG_VFI mbox allocation failed" |
| "HBA state x%x\n", phba->pport->port_state); |
| return -ENOMEM; |
| } |
| |
| lpfc_unreg_vfi(mboxq, vport); |
| mboxq->vport = vport; |
| mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl; |
| |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2557 UNREG_VFI issue mbox failed rc x%x " |
| "HBA state x%x\n", |
| rc, phba->pport->port_state); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| |
| clear_bit(FC_VFI_REGISTERED, &vport->fc_flag); |
| return 0; |
| } |
| |
| /** |
| * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean. |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @sp: pointer to service parameter data structure. |
| * |
| * This routine is called from FLOGI/FDISC completion handler functions. |
| * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric |
| * node nodename is changed in the completion service parameter else return |
| * 0. This function also set flag in the vport data structure to delay |
| * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit |
| * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric |
| * node nodename is changed in the completion service parameter. |
| * |
| * Return code |
| * 0 - FCID and Fabric Nodename and Fabric portname is not changed. |
| * 1 - FCID or Fabric Nodename or Fabric portname is changed. |
| * |
| **/ |
| static uint8_t |
| lpfc_check_clean_addr_bit(struct lpfc_vport *vport, |
| struct serv_parm *sp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| uint8_t fabric_param_changed = 0; |
| |
| if ((vport->fc_prevDID != vport->fc_myDID) || |
| memcmp(&vport->fabric_portname, &sp->portName, |
| sizeof(struct lpfc_name)) || |
| memcmp(&vport->fabric_nodename, &sp->nodeName, |
| sizeof(struct lpfc_name)) || |
| (vport->vport_flag & FAWWPN_PARAM_CHG)) { |
| fabric_param_changed = 1; |
| vport->vport_flag &= ~FAWWPN_PARAM_CHG; |
| } |
| /* |
| * Word 1 Bit 31 in common service parameter is overloaded. |
| * Word 1 Bit 31 in FLOGI request is multiple NPort request |
| * Word 1 Bit 31 in FLOGI response is clean address bit |
| * |
| * If fabric parameter is changed and clean address bit is |
| * cleared delay nport discovery if |
| * - vport->fc_prevDID != 0 (not initial discovery) OR |
| * - lpfc_delay_discovery module parameter is set. |
| */ |
| if (fabric_param_changed && !sp->cmn.clean_address_bit && |
| (vport->fc_prevDID || phba->cfg_delay_discovery)) |
| set_bit(FC_DISC_DELAYED, &vport->fc_flag); |
| |
| return fabric_param_changed; |
| } |
| |
| |
| /** |
| * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @sp: pointer to service parameter data structure. |
| * @ulp_word4: command response value |
| * |
| * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback |
| * function to handle the completion of a Fabric Login (FLOGI) into a fabric |
| * port in a fabric topology. It properly sets up the parameters to the @ndlp |
| * from the IOCB response. It also check the newly assigned N_Port ID to the |
| * @vport against the previously assigned N_Port ID. If it is different from |
| * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine |
| * is invoked on all the remaining nodes with the @vport to unregister the |
| * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() |
| * is invoked to register login to the fabric. |
| * |
| * Return code |
| * 0 - Success (currently, always return 0) |
| **/ |
| static int |
| lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| struct serv_parm *sp, uint32_t ulp_word4) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_nodelist *np; |
| struct lpfc_nodelist *next_np; |
| uint8_t fabric_param_changed; |
| |
| set_bit(FC_FABRIC, &vport->fc_flag); |
| |
| phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); |
| if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ |
| phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; |
| |
| phba->fc_edtovResol = sp->cmn.edtovResolution; |
| phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; |
| |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) |
| set_bit(FC_PUBLIC_LOOP, &vport->fc_flag); |
| |
| vport->fc_myDID = ulp_word4 & Mask_DID; |
| memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
| memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
| ndlp->nlp_class_sup = 0; |
| if (sp->cls1.classValid) |
| ndlp->nlp_class_sup |= FC_COS_CLASS1; |
| if (sp->cls2.classValid) |
| ndlp->nlp_class_sup |= FC_COS_CLASS2; |
| if (sp->cls3.classValid) |
| ndlp->nlp_class_sup |= FC_COS_CLASS3; |
| if (sp->cls4.classValid) |
| ndlp->nlp_class_sup |= FC_COS_CLASS4; |
| ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | |
| sp->cmn.bbRcvSizeLsb; |
| |
| fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); |
| if (fabric_param_changed) { |
| /* Reset FDMI attribute masks based on config parameter */ |
| if (phba->cfg_enable_SmartSAN || |
| (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { |
| /* Setup appropriate attribute masks */ |
| vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; |
| if (phba->cfg_enable_SmartSAN) |
| vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; |
| else |
| vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; |
| } else { |
| vport->fdmi_hba_mask = 0; |
| vport->fdmi_port_mask = 0; |
| } |
| |
| } |
| memcpy(&vport->fabric_portname, &sp->portName, |
| sizeof(struct lpfc_name)); |
| memcpy(&vport->fabric_nodename, &sp->nodeName, |
| sizeof(struct lpfc_name)); |
| memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); |
| |
| if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
| if (sp->cmn.response_multiple_NPort) { |
| lpfc_printf_vlog(vport, KERN_WARNING, |
| LOG_ELS | LOG_VPORT, |
| "1816 FLOGI NPIV supported, " |
| "response data 0x%x\n", |
| sp->cmn.response_multiple_NPort); |
| spin_lock_irq(&phba->hbalock); |
| phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
| spin_unlock_irq(&phba->hbalock); |
| } else { |
| /* Because we asked f/w for NPIV it still expects us |
| to call reg_vnpid at least for the physical host */ |
| lpfc_printf_vlog(vport, KERN_WARNING, |
| LOG_ELS | LOG_VPORT, |
| "1817 Fabric does not support NPIV " |
| "- configuring single port mode.\n"); |
| spin_lock_irq(&phba->hbalock); |
| phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| } |
| |
| /* |
| * For FC we need to do some special processing because of the SLI |
| * Port's default settings of the Common Service Parameters. |
| */ |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) { |
| /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ |
| if (fabric_param_changed) |
| lpfc_unregister_fcf_prep(phba); |
| |
| /* This should just update the VFI CSPs*/ |
| if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) |
| lpfc_issue_reg_vfi(vport); |
| } |
| |
| if (fabric_param_changed && |
| !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { |
| |
| /* If our NportID changed, we need to ensure all |
| * remaining NPORTs get unreg_login'ed. |
| */ |
| list_for_each_entry_safe(np, next_np, |
| &vport->fc_nodes, nlp_listp) { |
| if ((np->nlp_state != NLP_STE_NPR_NODE) || |
| !(np->nlp_flag & NLP_NPR_ADISC)) |
| continue; |
| spin_lock_irq(&np->lock); |
| np->nlp_flag &= ~NLP_NPR_ADISC; |
| spin_unlock_irq(&np->lock); |
| lpfc_unreg_rpi(vport, np); |
| } |
| lpfc_cleanup_pending_mbox(vport); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| lpfc_sli4_unreg_all_rpis(vport); |
| lpfc_mbx_unreg_vpi(vport); |
| set_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag); |
| } |
| |
| /* |
| * For SLI3 and SLI4, the VPI needs to be reregistered in |
| * response to this fabric parameter change event. |
| */ |
| set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); |
| } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
| !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { |
| /* |
| * Driver needs to re-reg VPI in order for f/w |
| * to update the MAC address. |
| */ |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| lpfc_register_new_vport(phba, vport, ndlp); |
| return 0; |
| } |
| |
| if (phba->sli_rev < LPFC_SLI_REV4) { |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); |
| if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && |
| test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) |
| lpfc_register_new_vport(phba, vport, ndlp); |
| else |
| lpfc_issue_fabric_reglogin(vport); |
| } else { |
| ndlp->nlp_type |= NLP_FABRIC; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| if ((!test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) && |
| (vport->vpi_state & LPFC_VPI_REGISTERED)) { |
| lpfc_start_fdiscs(phba); |
| lpfc_do_scr_ns_plogi(phba, vport); |
| } else if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) |
| lpfc_issue_init_vpi(vport); |
| else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3135 Need register VFI: (x%x/%x)\n", |
| vport->fc_prevDID, vport->fc_myDID); |
| lpfc_issue_reg_vfi(vport); |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @sp: pointer to service parameter data structure. |
| * |
| * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback |
| * function to handle the completion of a Fabric Login (FLOGI) into an N_Port |
| * in a point-to-point topology. First, the @vport's N_Port Name is compared |
| * with the received N_Port Name: if the @vport's N_Port Name is greater than |
| * the received N_Port Name lexicographically, this node shall assign local |
| * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and |
| * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, |
| * this node shall just wait for the remote node to issue PLOGI and assign |
| * N_Port IDs. |
| * |
| * Return code |
| * 0 - Success |
| * -ENXIO - Fail |
| **/ |
| static int |
| lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| struct serv_parm *sp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mbox; |
| int rc; |
| |
| clear_bit(FC_FABRIC, &vport->fc_flag); |
| clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); |
| set_bit(FC_PT2PT, &vport->fc_flag); |
| |
| /* If we are pt2pt with another NPort, force NPIV off! */ |
| phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; |
| |
| /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */ |
| if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) { |
| lpfc_unregister_fcf_prep(phba); |
| clear_bit(FC_VFI_REGISTERED, &vport->fc_flag); |
| phba->fc_topology_changed = 0; |
| } |
| |
| rc = memcmp(&vport->fc_portname, &sp->portName, |
| sizeof(vport->fc_portname)); |
| |
| if (rc >= 0) { |
| /* This side will initiate the PLOGI */ |
| set_bit(FC_PT2PT_PLOGI, &vport->fc_flag); |
| |
| /* |
| * N_Port ID cannot be 0, set our Id to LocalID |
| * the other side will be RemoteID. |
| */ |
| |
| /* not equal */ |
| if (rc) |
| vport->fc_myDID = PT2PT_LocalID; |
| |
| /* If not registered with a transport, decrement ndlp reference |
| * count indicating that ndlp can be safely released when other |
| * references are removed. |
| */ |
| if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) |
| lpfc_nlp_put(ndlp); |
| |
| ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
| if (!ndlp) { |
| /* |
| * Cannot find existing Fabric ndlp, so allocate a |
| * new one |
| */ |
| ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID); |
| if (!ndlp) |
| goto fail; |
| } |
| |
| memcpy(&ndlp->nlp_portname, &sp->portName, |
| sizeof(struct lpfc_name)); |
| memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
| sizeof(struct lpfc_name)); |
| /* Set state will put ndlp onto node list if not already done */ |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) |
| goto fail; |
| |
| lpfc_config_link(phba, mbox); |
| |
| mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; |
| mbox->vport = vport; |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| mempool_free(mbox, phba->mbox_mem_pool); |
| goto fail; |
| } |
| } else { |
| /* This side will wait for the PLOGI. If not registered with |
| * a transport, decrement node reference count indicating that |
| * ndlp can be released when other references are removed. |
| */ |
| if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) |
| lpfc_nlp_put(ndlp); |
| |
| /* Start discovery - this should just do CLEAR_LA */ |
| lpfc_disc_start(vport); |
| } |
| |
| return 0; |
| fail: |
| return -ENXIO; |
| } |
| |
| /** |
| * lpfc_cmpl_els_flogi - Completion callback function for flogi |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the top-level completion callback function for issuing |
| * a Fabric Login (FLOGI) command. If the response IOCB reported error, |
| * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If |
| * retry has been made (either immediately or delayed with lpfc_els_retry() |
| * returning 1), the command IOCB will be released and function returned. |
| * If the retry attempt has been given up (possibly reach the maximum |
| * number of retries), one additional decrement of ndlp reference shall be |
| * invoked before going out after releasing the command IOCB. This will |
| * actually release the remote node (Note, lpfc_els_free_iocb() will also |
| * invoke one decrement of ndlp reference count). If no error reported in |
| * the IOCB status, the command Port ID field is used to determine whether |
| * this is a point-to-point topology or a fabric topology: if the Port ID |
| * field is assigned, it is a fabric topology; otherwise, it is a |
| * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or |
| * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the |
| * specific topology completion conditions. |
| **/ |
| static void |
| lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| IOCB_t *irsp; |
| struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; |
| struct serv_parm *sp; |
| uint16_t fcf_index; |
| int rc; |
| u32 ulp_status, ulp_word4, tmo; |
| bool flogi_in_retry = false; |
| |
| /* Check to see if link went down during discovery */ |
| if (lpfc_els_chk_latt(vport)) { |
| /* One additional decrement on node reference count to |
| * trigger the release of the node |
| */ |
| if (!(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) |
| lpfc_nlp_put(ndlp); |
| goto out; |
| } |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| tmo = get_wqe_tmo(cmdiocb); |
| } else { |
| irsp = &rspiocb->iocb; |
| tmo = irsp->ulpTimeout; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "FLOGI cmpl: status:x%x/x%x state:x%x", |
| ulp_status, ulp_word4, |
| vport->port_state); |
| |
| if (ulp_status) { |
| /* |
| * In case of FIP mode, perform roundrobin FCF failover |
| * due to new FCF discovery |
| */ |
| if (test_bit(HBA_FIP_SUPPORT, &phba->hba_flag) && |
| (phba->fcf.fcf_flag & FCF_DISCOVERY)) { |
| if (phba->link_state < LPFC_LINK_UP) |
| goto stop_rr_fcf_flogi; |
| if ((phba->fcoe_cvl_eventtag_attn == |
| phba->fcoe_cvl_eventtag) && |
| (ulp_status == IOSTAT_LOCAL_REJECT) && |
| ((ulp_word4 & IOERR_PARAM_MASK) == |
| IOERR_SLI_ABORTED)) |
| goto stop_rr_fcf_flogi; |
| else |
| phba->fcoe_cvl_eventtag_attn = |
| phba->fcoe_cvl_eventtag; |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
| "2611 FLOGI FCF (x%x), " |
| "status:x%x/x%x, tmo:x%x, perform " |
| "roundrobin FCF failover\n", |
| phba->fcf.current_rec.fcf_indx, |
| ulp_status, ulp_word4, tmo); |
| lpfc_sli4_set_fcf_flogi_fail(phba, |
| phba->fcf.current_rec.fcf_indx); |
| fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
| rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index); |
| if (rc) |
| goto out; |
| } |
| |
| stop_rr_fcf_flogi: |
| /* FLOGI failure */ |
| if (!(ulp_status == IOSTAT_LOCAL_REJECT && |
| ((ulp_word4 & IOERR_PARAM_MASK) == |
| IOERR_LOOP_OPEN_FAILURE))) |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "2858 FLOGI Status:x%x/x%x TMO" |
| ":x%x Data x%lx x%x\n", |
| ulp_status, ulp_word4, tmo, |
| phba->hba_flag, phba->fcf.fcf_flag); |
| |
| /* Check for retry */ |
| if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { |
| /* Address a timing race with dev_loss. If dev_loss |
| * is active on this FPort node, put the initial ref |
| * count back to stop premature node release actions. |
| */ |
| lpfc_check_nlp_post_devloss(vport, ndlp); |
| flogi_in_retry = true; |
| goto out; |
| } |
| |
| /* The FLOGI will not be retried. If the FPort node is not |
| * registered with the SCSI transport, remove the initial |
| * reference to trigger node release. |
| */ |
| if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS) && |
| !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) |
| lpfc_nlp_put(ndlp); |
| |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, |
| "0150 FLOGI Status:x%x/x%x " |
| "xri x%x TMO:x%x refcnt %d\n", |
| ulp_status, ulp_word4, cmdiocb->sli4_xritag, |
| tmo, kref_read(&ndlp->kref)); |
| |
| /* If this is not a loop open failure, bail out */ |
| if (!(ulp_status == IOSTAT_LOCAL_REJECT && |
| ((ulp_word4 & IOERR_PARAM_MASK) == |
| IOERR_LOOP_OPEN_FAILURE))) { |
| /* Warn FLOGI status */ |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "0100 FLOGI Status:x%x/x%x " |
| "TMO:x%x\n", |
| ulp_status, ulp_word4, tmo); |
| goto flogifail; |
| } |
| |
| /* FLOGI failed, so there is no fabric */ |
| clear_bit(FC_FABRIC, &vport->fc_flag); |
| clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); |
| clear_bit(FC_PT2PT_NO_NVME, &vport->fc_flag); |
| |
| /* If private loop, then allow max outstanding els to be |
| * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
| * alpa map would take too long otherwise. |
| */ |
| if (phba->alpa_map[0] == 0) |
| vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| (!test_bit(FC_VFI_REGISTERED, &vport->fc_flag) || |
| (vport->fc_prevDID != vport->fc_myDID) || |
| phba->fc_topology_changed)) { |
| if (test_bit(FC_VFI_REGISTERED, &vport->fc_flag)) { |
| if (phba->fc_topology_changed) { |
| lpfc_unregister_fcf_prep(phba); |
| clear_bit(FC_VFI_REGISTERED, |
| &vport->fc_flag); |
| phba->fc_topology_changed = 0; |
| } else { |
| lpfc_sli4_unreg_all_rpis(vport); |
| } |
| } |
| |
| /* Do not register VFI if the driver aborted FLOGI */ |
| if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) |
| lpfc_issue_reg_vfi(vport); |
| |
| goto out; |
| } |
| goto flogifail; |
| } |
| clear_bit(FC_VPORT_CVL_RCVD, &vport->fc_flag); |
| clear_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); |
| |
| /* |
| * The FLOGI succeeded. Sync the data for the CPU before |
| * accessing it. |
| */ |
| prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
| if (!prsp) |
| goto out; |
| if (!lpfc_is_els_acc_rsp(prsp)) |
| goto out; |
| sp = prsp->virt + sizeof(uint32_t); |
| |
| /* FLOGI completes successfully */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0101 FLOGI completes successfully, I/O tag:x%x " |
| "xri x%x Data: x%x x%x x%x x%x x%x x%lx x%x %d\n", |
| cmdiocb->iotag, cmdiocb->sli4_xritag, |
| ulp_word4, sp->cmn.e_d_tov, |
| sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution, |
| vport->port_state, vport->fc_flag, |
| sp->cmn.priority_tagging, kref_read(&ndlp->kref)); |
| |
| /* reinitialize the VMID datastructure before returning */ |
| if (lpfc_is_vmid_enabled(phba)) { |
| lpfc_reinit_vmid(vport); |
| vport->vmid_flag = 0; |
| } |
| if (sp->cmn.priority_tagging) |
| vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA | |
| LPFC_VMID_TYPE_PRIO); |
| |
| /* |
| * Address a timing race with dev_loss. If dev_loss is active on |
| * this FPort node, put the initial ref count back to stop premature |
| * node release actions. |
| */ |
| lpfc_check_nlp_post_devloss(vport, ndlp); |
| if (vport->port_state == LPFC_FLOGI) { |
| /* |
| * If Common Service Parameters indicate Nport |
| * we are point to point, if Fport we are Fabric. |
| */ |
| if (sp->cmn.fPort) |
| rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, |
| ulp_word4); |
| else if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) |
| rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
| else { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2831 FLOGI response with cleared Fabric " |
| "bit fcf_index 0x%x " |
| "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x " |
| "Fabric Name " |
| "%02x%02x%02x%02x%02x%02x%02x%02x\n", |
| phba->fcf.current_rec.fcf_indx, |
| phba->fcf.current_rec.switch_name[0], |
| phba->fcf.current_rec.switch_name[1], |
| phba->fcf.current_rec.switch_name[2], |
| phba->fcf.current_rec.switch_name[3], |
| phba->fcf.current_rec.switch_name[4], |
| phba->fcf.current_rec.switch_name[5], |
| phba->fcf.current_rec.switch_name[6], |
| phba->fcf.current_rec.switch_name[7], |
| phba->fcf.current_rec.fabric_name[0], |
| phba->fcf.current_rec.fabric_name[1], |
| phba->fcf.current_rec.fabric_name[2], |
| phba->fcf.current_rec.fabric_name[3], |
| phba->fcf.current_rec.fabric_name[4], |
| phba->fcf.current_rec.fabric_name[5], |
| phba->fcf.current_rec.fabric_name[6], |
| phba->fcf.current_rec.fabric_name[7]); |
| |
| lpfc_nlp_put(ndlp); |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_DISCOVERY; |
| spin_unlock_irq(&phba->hbalock); |
| clear_bit(FCF_RR_INPROG, &phba->hba_flag); |
| clear_bit(HBA_DEVLOSS_TMO, &phba->hba_flag); |
| phba->fcf.fcf_redisc_attempted = 0; /* reset */ |
| goto out; |
| } |
| if (!rc) { |
| /* Mark the FCF discovery process done */ |
| if (test_bit(HBA_FIP_SUPPORT, &phba->hba_flag)) |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | |
| LOG_ELS, |
| "2769 FLOGI to FCF (x%x) " |
| "completed successfully\n", |
| phba->fcf.current_rec.fcf_indx); |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_DISCOVERY; |
| spin_unlock_irq(&phba->hbalock); |
| clear_bit(FCF_RR_INPROG, &phba->hba_flag); |
| clear_bit(HBA_DEVLOSS_TMO, &phba->hba_flag); |
| phba->fcf.fcf_redisc_attempted = 0; /* reset */ |
| goto out; |
| } |
| } else if (vport->port_state > LPFC_FLOGI && |
| test_bit(FC_PT2PT, &vport->fc_flag)) { |
| /* |
| * In a p2p topology, it is possible that discovery has |
| * already progressed, and this completion can be ignored. |
| * Recheck the indicated topology. |
| */ |
| if (!sp->cmn.fPort) |
| goto out; |
| } |
| |
| flogifail: |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_DISCOVERY; |
| spin_unlock_irq(&phba->hbalock); |
| |
| if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { |
| /* FLOGI failed, so just use loop map to make discovery list */ |
| lpfc_disc_list_loopmap(vport); |
| |
| /* Start discovery */ |
| lpfc_disc_start(vport); |
| } else if (((ulp_status != IOSTAT_LOCAL_REJECT) || |
| (((ulp_word4 & IOERR_PARAM_MASK) != |
| IOERR_SLI_ABORTED) && |
| ((ulp_word4 & IOERR_PARAM_MASK) != |
| IOERR_SLI_DOWN))) && |
| (phba->link_state != LPFC_CLEAR_LA)) { |
| /* If FLOGI failed enable link interrupt. */ |
| lpfc_issue_clear_la(phba, vport); |
| } |
| out: |
| if (!flogi_in_retry) |
| clear_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); |
| |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| /** |
| * lpfc_cmpl_els_link_down - Completion callback function for ELS command |
| * aborted during a link down |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| */ |
| static void |
| lpfc_cmpl_els_link_down(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| uint32_t *pcmd; |
| uint32_t cmd; |
| u32 ulp_status, ulp_word4; |
| |
| pcmd = (uint32_t *)cmdiocb->cmd_dmabuf->virt; |
| cmd = *pcmd; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
| "6445 ELS completes after LINK_DOWN: " |
| " Status %x/%x cmd x%x flg x%x\n", |
| ulp_status, ulp_word4, cmd, |
| cmdiocb->cmd_flag); |
| |
| if (cmdiocb->cmd_flag & LPFC_IO_FABRIC) { |
| cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; |
| atomic_dec(&phba->fabric_iocb_count); |
| } |
| lpfc_els_free_iocb(phba, cmdiocb); |
| } |
| |
| /** |
| * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @retry: number of retries to the command IOCB. |
| * |
| * This routine issues a Fabric Login (FLOGI) Request ELS command |
| * for a @vport. The initiator service parameters are put into the payload |
| * of the FLOGI Request IOCB and the top-level callback function pointer |
| * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback |
| * function field. The lpfc_issue_fabric_iocb routine is invoked to send |
| * out FLOGI ELS command with one outstanding fabric IOCB at a time. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the FLOGI ELS command. |
| * |
| * Return code |
| * 0 - successfully issued flogi iocb for @vport |
| * 1 - failed to issue flogi iocb for @vport |
| **/ |
| static int |
| lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| uint8_t retry) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct serv_parm *sp; |
| union lpfc_wqe128 *wqe = NULL; |
| IOCB_t *icmd = NULL; |
| struct lpfc_iocbq *elsiocb; |
| struct lpfc_iocbq defer_flogi_acc; |
| u8 *pcmd, ct; |
| uint16_t cmdsize; |
| uint32_t tmo, did; |
| int rc; |
| |
| cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_FLOGI); |
| |
| if (!elsiocb) |
| return 1; |
| |
| wqe = &elsiocb->wqe; |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| icmd = &elsiocb->iocb; |
| |
| /* For FLOGI request, remainder of payload is service parameters */ |
| *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; |
| pcmd += sizeof(uint32_t); |
| memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); |
| sp = (struct serv_parm *) pcmd; |
| |
| /* Setup CSPs accordingly for Fabric */ |
| sp->cmn.e_d_tov = 0; |
| sp->cmn.w2.r_a_tov = 0; |
| sp->cmn.virtual_fabric_support = 0; |
| sp->cls1.classValid = 0; |
| if (sp->cmn.fcphLow < FC_PH3) |
| sp->cmn.fcphLow = FC_PH3; |
| if (sp->cmn.fcphHigh < FC_PH3) |
| sp->cmn.fcphHigh = FC_PH3; |
| |
| /* Determine if switch supports priority tagging */ |
| if (phba->cfg_vmid_priority_tagging) { |
| sp->cmn.priority_tagging = 1; |
| /* lpfc_vmid_host_uuid is combination of wwpn and wwnn */ |
| if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0, |
| sizeof(vport->lpfc_vmid_host_uuid))) { |
| memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn, |
| sizeof(phba->wwpn)); |
| memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn, |
| sizeof(phba->wwnn)); |
| } |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == |
| LPFC_SLI_INTF_IF_TYPE_0) { |
| /* FLOGI needs to be 3 for WQE FCFI */ |
| ct = SLI4_CT_FCFI; |
| bf_set(wqe_ct, &wqe->els_req.wqe_com, ct); |
| |
| /* Set the fcfi to the fcfi we registered with */ |
| bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com, |
| phba->fcf.fcfi); |
| } |
| |
| /* Can't do SLI4 class2 without support sequence coalescing */ |
| sp->cls2.classValid = 0; |
| sp->cls2.seqDelivery = 0; |
| } else { |
| /* Historical, setting sequential-delivery bit for SLI3 */ |
| sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0; |
| sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0; |
| if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
| sp->cmn.request_multiple_Nport = 1; |
| /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ |
| icmd->ulpCt_h = 1; |
| icmd->ulpCt_l = 0; |
| } else { |
| sp->cmn.request_multiple_Nport = 0; |
| } |
| |
| if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
| icmd->un.elsreq64.myID = 0; |
| icmd->un.elsreq64.fl = 1; |
| } |
| } |
| |
| tmo = phba->fc_ratov; |
| phba->fc_ratov = LPFC_DISC_FLOGI_TMO; |
| lpfc_set_disctmo(vport); |
| phba->fc_ratov = tmo; |
| |
| phba->fc_stat.elsXmitFLOGI++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_flogi; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue FLOGI: opt:x%x", |
| phba->sli3_options, 0, 0); |
| |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| /* Avoid race with FLOGI completion and hba_flags. */ |
| set_bit(HBA_FLOGI_ISSUED, &phba->hba_flag); |
| set_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); |
| |
| rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
| if (rc == IOCB_ERROR) { |
| clear_bit(HBA_FLOGI_ISSUED, &phba->hba_flag); |
| clear_bit(HBA_FLOGI_OUTSTANDING, &phba->hba_flag); |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| /* Clear external loopback plug detected flag */ |
| phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; |
| |
| /* Check for a deferred FLOGI ACC condition */ |
| if (phba->defer_flogi_acc.flag) { |
| /* lookup ndlp for received FLOGI */ |
| ndlp = lpfc_findnode_did(vport, 0); |
| if (!ndlp) |
| return 0; |
| |
| did = vport->fc_myDID; |
| vport->fc_myDID = Fabric_DID; |
| |
| memset(&defer_flogi_acc, 0, sizeof(struct lpfc_iocbq)); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| bf_set(wqe_ctxt_tag, |
| &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, |
| phba->defer_flogi_acc.rx_id); |
| bf_set(wqe_rcvoxid, |
| &defer_flogi_acc.wqe.xmit_els_rsp.wqe_com, |
| phba->defer_flogi_acc.ox_id); |
| } else { |
| icmd = &defer_flogi_acc.iocb; |
| icmd->ulpContext = phba->defer_flogi_acc.rx_id; |
| icmd->unsli3.rcvsli3.ox_id = |
| phba->defer_flogi_acc.ox_id; |
| } |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3354 Xmit deferred FLOGI ACC: rx_id: x%x," |
| " ox_id: x%x, hba_flag x%lx\n", |
| phba->defer_flogi_acc.rx_id, |
| phba->defer_flogi_acc.ox_id, phba->hba_flag); |
| |
| /* Send deferred FLOGI ACC */ |
| lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, &defer_flogi_acc, |
| ndlp, NULL); |
| |
| phba->defer_flogi_acc.flag = false; |
| |
| /* Decrement the held ndlp that was incremented when the |
| * deferred flogi acc flag was set. |
| */ |
| if (phba->defer_flogi_acc.ndlp) { |
| lpfc_nlp_put(phba->defer_flogi_acc.ndlp); |
| phba->defer_flogi_acc.ndlp = NULL; |
| } |
| |
| vport->fc_myDID = did; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs |
| * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq |
| * list and issues an abort IOCB commond on each outstanding IOCB that |
| * contains a active Fabric_DID ndlp. Note that this function is to issue |
| * the abort IOCB command on all the outstanding IOCBs, thus when this |
| * function returns, it does not guarantee all the IOCBs are actually aborted. |
| * |
| * Return code |
| * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
| **/ |
| int |
| lpfc_els_abort_flogi(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli_ring *pring; |
| struct lpfc_iocbq *iocb, *next_iocb; |
| struct lpfc_nodelist *ndlp; |
| u32 ulp_command; |
| |
| /* Abort outstanding I/O on NPort <nlp_DID> */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, |
| "0201 Abort outstanding I/O on NPort x%x\n", |
| Fabric_DID); |
| |
| pring = lpfc_phba_elsring(phba); |
| if (unlikely(!pring)) |
| return -EIO; |
| |
| /* |
| * Check the txcmplq for an iocb that matches the nport the driver is |
| * searching for. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
| ulp_command = get_job_cmnd(phba, iocb); |
| if (ulp_command == CMD_ELS_REQUEST64_CR) { |
| ndlp = iocb->ndlp; |
| if (ndlp && ndlp->nlp_DID == Fabric_DID) { |
| if (test_bit(FC_PT2PT, &phba->pport->fc_flag) && |
| !test_bit(FC_PT2PT_PLOGI, |
| &phba->pport->fc_flag)) |
| iocb->fabric_cmd_cmpl = |
| lpfc_ignore_els_cmpl; |
| lpfc_sli_issue_abort_iotag(phba, pring, iocb, |
| NULL); |
| } |
| } |
| } |
| /* Make sure HBA is alive */ |
| lpfc_issue_hb_tmo(phba); |
| |
| spin_unlock_irq(&phba->hbalock); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_initial_flogi - Issue an initial fabric login for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine issues an initial Fabric Login (FLOGI) for the @vport |
| * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from |
| * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and |
| * put it into the @vport's ndlp list. If an inactive ndlp found on the list, |
| * it will just be enabled and made active. The lpfc_issue_els_flogi() routine |
| * is then invoked with the @vport and the ndlp to perform the FLOGI for the |
| * @vport. |
| * |
| * Return code |
| * 0 - failed to issue initial flogi for @vport |
| * 1 - successfully issued initial flogi for @vport |
| **/ |
| int |
| lpfc_initial_flogi(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| vport->port_state = LPFC_FLOGI; |
| lpfc_set_disctmo(vport); |
| |
| /* First look for the Fabric ndlp */ |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp) { |
| /* Cannot find existing Fabric ndlp, so allocate a new one */ |
| ndlp = lpfc_nlp_init(vport, Fabric_DID); |
| if (!ndlp) |
| return 0; |
| /* Set the node type */ |
| ndlp->nlp_type |= NLP_FABRIC; |
| |
| /* Put ndlp onto node list */ |
| lpfc_enqueue_node(vport, ndlp); |
| } |
| |
| /* Reset the Fabric flag, topology change may have happened */ |
| clear_bit(FC_FABRIC, &vport->fc_flag); |
| if (lpfc_issue_els_flogi(vport, ndlp, 0)) { |
| /* A node reference should be retained while registered with a |
| * transport or dev-loss-evt work is pending. |
| * Otherwise, decrement node reference to trigger release. |
| */ |
| if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && |
| !(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) |
| lpfc_nlp_put(ndlp); |
| return 0; |
| } |
| return 1; |
| } |
| |
| /** |
| * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine issues an initial Fabric Discover (FDISC) for the @vport |
| * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from |
| * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and |
| * put it into the @vport's ndlp list. If an inactive ndlp found on the list, |
| * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine |
| * is then invoked with the @vport and the ndlp to perform the FDISC for the |
| * @vport. |
| * |
| * Return code |
| * 0 - failed to issue initial fdisc for @vport |
| * 1 - successfully issued initial fdisc for @vport |
| **/ |
| int |
| lpfc_initial_fdisc(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| /* First look for the Fabric ndlp */ |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp) { |
| /* Cannot find existing Fabric ndlp, so allocate a new one */ |
| ndlp = lpfc_nlp_init(vport, Fabric_DID); |
| if (!ndlp) |
| return 0; |
| |
| /* NPIV is only supported in Fabrics. */ |
| ndlp->nlp_type |= NLP_FABRIC; |
| |
| /* Put ndlp onto node list */ |
| lpfc_enqueue_node(vport, ndlp); |
| } |
| |
| if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
| /* A node reference should be retained while registered with a |
| * transport or dev-loss-evt work is pending. |
| * Otherwise, decrement node reference to trigger release. |
| */ |
| if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && |
| !(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) |
| lpfc_nlp_put(ndlp); |
| return 0; |
| } |
| return 1; |
| } |
| |
| /** |
| * lpfc_more_plogi - Check and issue remaining plogis for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine checks whether there are more remaining Port Logins |
| * (PLOGI) to be issued for the @vport. If so, it will invoke the routine |
| * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes |
| * to issue ELS PLOGIs up to the configured discover threads with the |
| * @vport (@vport->cfg_discovery_threads). The function also decrement |
| * the @vport's num_disc_node by 1 if it is not already 0. |
| **/ |
| void |
| lpfc_more_plogi(struct lpfc_vport *vport) |
| { |
| if (vport->num_disc_nodes) |
| vport->num_disc_nodes--; |
| |
| /* Continue discovery with <num_disc_nodes> PLOGIs to go */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0232 Continue discovery with %d PLOGIs to go " |
| "Data: x%x x%lx x%x\n", |
| vport->num_disc_nodes, |
| atomic_read(&vport->fc_plogi_cnt), |
| vport->fc_flag, vport->port_state); |
| /* Check to see if there are more PLOGIs to be sent */ |
| if (test_bit(FC_NLP_MORE, &vport->fc_flag)) |
| /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
| lpfc_els_disc_plogi(vport); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_plogi_confirm_nport - Confirm plogi wwpn matches stored ndlp |
| * @phba: pointer to lpfc hba data structure. |
| * @prsp: pointer to response IOCB payload. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine checks and indicates whether the WWPN of an N_Port, retrieved |
| * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. |
| * The following cases are considered N_Port confirmed: |
| * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches |
| * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but |
| * it does not have WWPN assigned either. If the WWPN is confirmed, the |
| * pointer to the @ndlp will be returned. If the WWPN is not confirmed: |
| * 1) if there is a node on vport list other than the @ndlp with the same |
| * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked |
| * on that node to release the RPI associated with the node; 2) if there is |
| * no node found on vport list with the same WWPN of the N_Port PLOGI logged |
| * into, a new node shall be allocated (or activated). In either case, the |
| * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall |
| * be released and the new_ndlp shall be put on to the vport node list and |
| * its pointer returned as the confirmed node. |
| * |
| * Note that before the @ndlp got "released", the keepDID from not-matching |
| * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID |
| * of the @ndlp. This is because the release of @ndlp is actually to put it |
| * into an inactive state on the vport node list and the vport node list |
| * management algorithm does not allow two node with a same DID. |
| * |
| * Return code |
| * pointer to the PLOGI N_Port @ndlp |
| **/ |
| static struct lpfc_nodelist * |
| lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_vport *vport = ndlp->vport; |
| struct lpfc_nodelist *new_ndlp; |
| struct serv_parm *sp; |
| uint8_t name[sizeof(struct lpfc_name)]; |
| uint32_t keepDID = 0, keep_nlp_flag = 0; |
| int rc; |
| uint32_t keep_new_nlp_flag = 0; |
| uint16_t keep_nlp_state; |
| u32 keep_nlp_fc4_type = 0; |
| struct lpfc_nvme_rport *keep_nrport = NULL; |
| unsigned long *active_rrqs_xri_bitmap = NULL; |
| |
| sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
| memset(name, 0, sizeof(struct lpfc_name)); |
| |
| /* Now we find out if the NPort we are logging into, matches the WWPN |
| * we have for that ndlp. If not, we have some work to do. |
| */ |
| new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
| |
| /* return immediately if the WWPN matches ndlp */ |
| if (new_ndlp == ndlp) |
| return ndlp; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool, |
| GFP_KERNEL); |
| if (active_rrqs_xri_bitmap) |
| memset(active_rrqs_xri_bitmap, 0, |
| phba->cfg_rrq_xri_bitmap_sz); |
| } |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE, |
| "3178 PLOGI confirm: ndlp x%x x%x x%x: " |
| "new_ndlp x%x x%x x%x\n", |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_fc4_type, |
| (new_ndlp ? new_ndlp->nlp_DID : 0), |
| (new_ndlp ? new_ndlp->nlp_flag : 0), |
| (new_ndlp ? new_ndlp->nlp_fc4_type : 0)); |
| |
| if (!new_ndlp) { |
| rc = memcmp(&ndlp->nlp_portname, name, |
| sizeof(struct lpfc_name)); |
| if (!rc) { |
| if (active_rrqs_xri_bitmap) |
| mempool_free(active_rrqs_xri_bitmap, |
| phba->active_rrq_pool); |
| return ndlp; |
| } |
| new_ndlp = lpfc_nlp_init(vport, ndlp->nlp_DID); |
| if (!new_ndlp) { |
| if (active_rrqs_xri_bitmap) |
| mempool_free(active_rrqs_xri_bitmap, |
| phba->active_rrq_pool); |
| return ndlp; |
| } |
| } else { |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| active_rrqs_xri_bitmap) |
| memcpy(active_rrqs_xri_bitmap, |
| new_ndlp->active_rrqs_xri_bitmap, |
| phba->cfg_rrq_xri_bitmap_sz); |
| |
| /* |
| * Unregister from backend if not done yet. Could have been |
| * skipped due to ADISC |
| */ |
| lpfc_nlp_unreg_node(vport, new_ndlp); |
| } |
| |
| keepDID = new_ndlp->nlp_DID; |
| |
| /* At this point in this routine, we know new_ndlp will be |
| * returned. however, any previous GID_FTs that were done |
| * would have updated nlp_fc4_type in ndlp, so we must ensure |
| * new_ndlp has the right value. |
| */ |
| if (test_bit(FC_FABRIC, &vport->fc_flag)) { |
| keep_nlp_fc4_type = new_ndlp->nlp_fc4_type; |
| new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type; |
| } |
| |
| lpfc_unreg_rpi(vport, new_ndlp); |
| new_ndlp->nlp_DID = ndlp->nlp_DID; |
| new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| memcpy(new_ndlp->active_rrqs_xri_bitmap, |
| ndlp->active_rrqs_xri_bitmap, |
| phba->cfg_rrq_xri_bitmap_sz); |
| |
| /* Lock both ndlps */ |
| spin_lock_irq(&ndlp->lock); |
| spin_lock_irq(&new_ndlp->lock); |
| keep_new_nlp_flag = new_ndlp->nlp_flag; |
| keep_nlp_flag = ndlp->nlp_flag; |
| new_ndlp->nlp_flag = ndlp->nlp_flag; |
| |
| /* if new_ndlp had NLP_UNREG_INP set, keep it */ |
| if (keep_new_nlp_flag & NLP_UNREG_INP) |
| new_ndlp->nlp_flag |= NLP_UNREG_INP; |
| else |
| new_ndlp->nlp_flag &= ~NLP_UNREG_INP; |
| |
| /* if new_ndlp had NLP_RPI_REGISTERED set, keep it */ |
| if (keep_new_nlp_flag & NLP_RPI_REGISTERED) |
| new_ndlp->nlp_flag |= NLP_RPI_REGISTERED; |
| else |
| new_ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; |
| |
| /* |
| * Retain the DROPPED flag. This will take care of the init |
| * refcount when affecting the state change |
| */ |
| if (keep_new_nlp_flag & NLP_DROPPED) |
| new_ndlp->nlp_flag |= NLP_DROPPED; |
| else |
| new_ndlp->nlp_flag &= ~NLP_DROPPED; |
| |
| ndlp->nlp_flag = keep_new_nlp_flag; |
| |
| /* if ndlp had NLP_UNREG_INP set, keep it */ |
| if (keep_nlp_flag & NLP_UNREG_INP) |
| ndlp->nlp_flag |= NLP_UNREG_INP; |
| else |
| ndlp->nlp_flag &= ~NLP_UNREG_INP; |
| |
| /* if ndlp had NLP_RPI_REGISTERED set, keep it */ |
| if (keep_nlp_flag & NLP_RPI_REGISTERED) |
| ndlp->nlp_flag |= NLP_RPI_REGISTERED; |
| else |
| ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; |
| |
| /* |
| * Retain the DROPPED flag. This will take care of the init |
| * refcount when affecting the state change |
| */ |
| if (keep_nlp_flag & NLP_DROPPED) |
| ndlp->nlp_flag |= NLP_DROPPED; |
| else |
| ndlp->nlp_flag &= ~NLP_DROPPED; |
| |
| spin_unlock_irq(&new_ndlp->lock); |
| spin_unlock_irq(&ndlp->lock); |
| |
| /* Set nlp_states accordingly */ |
| keep_nlp_state = new_ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
| |
| /* interchange the nvme remoteport structs */ |
| keep_nrport = new_ndlp->nrport; |
| new_ndlp->nrport = ndlp->nrport; |
| |
| /* Move this back to NPR state */ |
| if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
| /* The ndlp doesn't have a portname yet, but does have an |
| * NPort ID. The new_ndlp portname matches the Rport's |
| * portname. Reinstantiate the new_ndlp and reset the ndlp. |
| */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3179 PLOGI confirm NEW: %x %x\n", |
| new_ndlp->nlp_DID, keepDID); |
| |
| /* Two ndlps cannot have the same did on the nodelist. |
| * The KeepDID and keep_nlp_fc4_type need to be swapped |
| * because ndlp is inflight with no WWPN. |
| */ |
| ndlp->nlp_DID = keepDID; |
| ndlp->nlp_fc4_type = keep_nlp_fc4_type; |
| lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| active_rrqs_xri_bitmap) |
| memcpy(ndlp->active_rrqs_xri_bitmap, |
| active_rrqs_xri_bitmap, |
| phba->cfg_rrq_xri_bitmap_sz); |
| |
| } else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3180 PLOGI confirm SWAP: %x %x\n", |
| new_ndlp->nlp_DID, keepDID); |
| |
| lpfc_unreg_rpi(vport, ndlp); |
| |
| /* The ndlp and new_ndlp both have WWPNs but are swapping |
| * NPort Ids and attributes. |
| */ |
| ndlp->nlp_DID = keepDID; |
| ndlp->nlp_fc4_type = keep_nlp_fc4_type; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| active_rrqs_xri_bitmap) |
| memcpy(ndlp->active_rrqs_xri_bitmap, |
| active_rrqs_xri_bitmap, |
| phba->cfg_rrq_xri_bitmap_sz); |
| |
| /* Since we are switching over to the new_ndlp, |
| * reset the old ndlp state |
| */ |
| if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || |
| (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) |
| keep_nlp_state = NLP_STE_NPR_NODE; |
| lpfc_nlp_set_state(vport, ndlp, keep_nlp_state); |
| ndlp->nrport = keep_nrport; |
| } |
| |
| /* |
| * If ndlp is not associated with any rport we can drop it here else |
| * let dev_loss_tmo_callbk trigger DEVICE_RM event |
| */ |
| if (!ndlp->rport && (ndlp->nlp_state == NLP_STE_NPR_NODE)) |
| lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| active_rrqs_xri_bitmap) |
| mempool_free(active_rrqs_xri_bitmap, |
| phba->active_rrq_pool); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE, |
| "3173 PLOGI confirm exit: new_ndlp x%x x%x x%x\n", |
| new_ndlp->nlp_DID, new_ndlp->nlp_flag, |
| new_ndlp->nlp_fc4_type); |
| |
| return new_ndlp; |
| } |
| |
| /** |
| * lpfc_end_rscn - Check and handle more rscn for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine checks whether more Registration State Change |
| * Notifications (RSCNs) came in while the discovery state machine was in |
| * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be |
| * invoked to handle the additional RSCNs for the @vport. Otherwise, the |
| * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of |
| * handling the RSCNs. |
| **/ |
| void |
| lpfc_end_rscn(struct lpfc_vport *vport) |
| { |
| |
| if (test_bit(FC_RSCN_MODE, &vport->fc_flag)) { |
| /* |
| * Check to see if more RSCNs came in while we were |
| * processing this one. |
| */ |
| if (vport->fc_rscn_id_cnt || |
| test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) |
| lpfc_els_handle_rscn(vport); |
| else |
| clear_bit(FC_RSCN_MODE, &vport->fc_flag); |
| } |
| } |
| |
| /** |
| * lpfc_cmpl_els_rrq - Completion handled for els RRQs. |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine will call the clear rrq function to free the rrq and |
| * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not |
| * exist then the clear_rrq is still called because the rrq needs to |
| * be freed. |
| **/ |
| |
| static void |
| lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| struct lpfc_node_rrq *rrq; |
| u32 ulp_status = get_job_ulpstatus(phba, rspiocb); |
| u32 ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| /* we pass cmdiocb to state machine which needs rspiocb as well */ |
| rrq = cmdiocb->context_un.rrq; |
| cmdiocb->rsp_iocb = rspiocb; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "RRQ cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, |
| get_job_els_rsp64_did(phba, cmdiocb)); |
| |
| |
| /* rrq completes to NPort <nlp_DID> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "2880 RRQ completes to DID x%x " |
| "Data: x%x x%x x%x x%x x%x\n", |
| ndlp->nlp_DID, ulp_status, ulp_word4, |
| get_wqe_tmo(cmdiocb), rrq->xritag, rrq->rxid); |
| |
| if (ulp_status) { |
| /* Check for retry */ |
| /* Warn RRQ status Don't print the vport to vport rjts */ |
| if (ulp_status != IOSTAT_LS_RJT || |
| (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) && |
| ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) || |
| (phba)->pport->cfg_log_verbose & LOG_ELS) |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "2881 RRQ DID:%06X Status:" |
| "x%x/x%x\n", |
| ndlp->nlp_DID, ulp_status, |
| ulp_word4); |
| } |
| |
| lpfc_clr_rrq_active(phba, rrq->xritag, rrq); |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| /** |
| * lpfc_cmpl_els_plogi - Completion callback function for plogi |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion callback function for issuing the Port |
| * Login (PLOGI) command. For PLOGI completion, there must be an active |
| * ndlp on the vport node list that matches the remote node ID from the |
| * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply |
| * ignored and command IOCB released. The PLOGI response IOCB status is |
| * checked for error conditions. If there is error status reported, PLOGI |
| * retry shall be attempted by invoking the lpfc_els_retry() routine. |
| * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on |
| * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine |
| * (DSM) is set for this PLOGI completion. Finally, it checks whether |
| * there are additional N_Port nodes with the vport that need to perform |
| * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition |
| * PLOGIs. |
| **/ |
| static void |
| lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| IOCB_t *irsp; |
| struct lpfc_nodelist *ndlp, *free_ndlp; |
| struct lpfc_dmabuf *prsp; |
| int disc; |
| struct serv_parm *sp = NULL; |
| u32 ulp_status, ulp_word4, did, iotag; |
| bool release_node = false; |
| |
| /* we pass cmdiocb to state machine which needs rspiocb as well */ |
| cmdiocb->rsp_iocb = rspiocb; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| did = get_job_els_rsp64_did(phba, cmdiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| iotag = get_wqe_reqtag(cmdiocb); |
| } else { |
| irsp = &rspiocb->iocb; |
| iotag = irsp->ulpIoTag; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "PLOGI cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, did); |
| |
| ndlp = lpfc_findnode_did(vport, did); |
| if (!ndlp) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0136 PLOGI completes to NPort x%x " |
| "with no ndlp. Data: x%x x%x x%x\n", |
| did, ulp_status, ulp_word4, iotag); |
| goto out_freeiocb; |
| } |
| |
| /* Since ndlp can be freed in the disc state machine, note if this node |
| * is being used during discovery. |
| */ |
| spin_lock_irq(&ndlp->lock); |
| disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
| ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| |
| /* PLOGI completes to NPort <nlp_DID> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0102 PLOGI completes to NPort x%06x " |
| "IoTag x%x Data: x%x x%x x%x x%x x%x\n", |
| ndlp->nlp_DID, iotag, |
| ndlp->nlp_fc4_type, |
| ulp_status, ulp_word4, |
| disc, vport->num_disc_nodes); |
| |
| /* Check to see if link went down during discovery */ |
| if (lpfc_els_chk_latt(vport)) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| goto out; |
| } |
| |
| if (ulp_status) { |
| /* Check for retry */ |
| if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { |
| /* ELS command is being retried */ |
| if (disc) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| } |
| goto out; |
| } |
| /* Warn PLOGI status Don't print the vport to vport rjts */ |
| if (ulp_status != IOSTAT_LS_RJT || |
| (((ulp_word4) >> 16 != LSRJT_INVALID_CMD) && |
| ((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) || |
| (phba)->pport->cfg_log_verbose & LOG_ELS) |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "2753 PLOGI DID:%06X " |
| "Status:x%x/x%x\n", |
| ndlp->nlp_DID, ulp_status, |
| ulp_word4); |
| |
| /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
| if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_CMPL_PLOGI); |
| |
| /* If a PLOGI collision occurred, the node needs to continue |
| * with the reglogin process. |
| */ |
| spin_lock_irq(&ndlp->lock); |
| if ((ndlp->nlp_flag & (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI)) && |
| ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) { |
| spin_unlock_irq(&ndlp->lock); |
| goto out; |
| } |
| |
| /* No PLOGI collision and the node is not registered with the |
| * scsi or nvme transport. It is no longer an active node. Just |
| * start the device remove process. |
| */ |
| if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { |
| ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
| if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) |
| release_node = true; |
| } |
| spin_unlock_irq(&ndlp->lock); |
| |
| if (release_node) |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_DEVICE_RM); |
| } else { |
| /* Good status, call state machine */ |
| prsp = list_get_first(&cmdiocb->cmd_dmabuf->list, |
| struct lpfc_dmabuf, list); |
| if (!prsp) |
| goto out; |
| if (!lpfc_is_els_acc_rsp(prsp)) |
| goto out; |
| ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); |
| |
| sp = (struct serv_parm *)((u8 *)prsp->virt + |
| sizeof(u32)); |
| |
| ndlp->vmid_support = 0; |
| if ((phba->cfg_vmid_app_header && sp->cmn.app_hdr_support) || |
| (phba->cfg_vmid_priority_tagging && |
| sp->cmn.priority_tagging)) { |
| lpfc_printf_log(phba, KERN_DEBUG, LOG_ELS, |
| "4018 app_hdr_support %d tagging %d DID x%x\n", |
| sp->cmn.app_hdr_support, |
| sp->cmn.priority_tagging, |
| ndlp->nlp_DID); |
| /* if the dest port supports VMID, mark it in ndlp */ |
| ndlp->vmid_support = 1; |
| } |
| |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_CMPL_PLOGI); |
| } |
| |
| if (disc && vport->num_disc_nodes) { |
| /* Check to see if there are more PLOGIs to be sent */ |
| lpfc_more_plogi(vport); |
| |
| if (vport->num_disc_nodes == 0) { |
| clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); |
| |
| lpfc_can_disctmo(vport); |
| lpfc_end_rscn(vport); |
| } |
| } |
| |
| out: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, |
| "PLOGI Cmpl PUT: did:x%x refcnt %d", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), 0); |
| |
| out_freeiocb: |
| /* Release the reference on the original I/O request. */ |
| free_ndlp = cmdiocb->ndlp; |
| |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(free_ndlp); |
| return; |
| } |
| |
| /** |
| * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @did: destination port identifier. |
| * @retry: number of retries to the command IOCB. |
| * |
| * This routine issues a Port Login (PLOGI) command to a remote N_Port |
| * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, |
| * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. |
| * This routine constructs the proper fields of the PLOGI IOCB and invokes |
| * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding |
| * the ndlp and the reference to ndlp will be stored into the ndlp field |
| * of the IOCB for the completion callback function to the PLOGI ELS command. |
| * |
| * Return code |
| * 0 - Successfully issued a plogi for @vport |
| * 1 - failed to issue a plogi for @vport |
| **/ |
| int |
| lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct serv_parm *sp; |
| struct lpfc_nodelist *ndlp; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| int ret; |
| |
| ndlp = lpfc_findnode_did(vport, did); |
| if (!ndlp) |
| return 1; |
| |
| /* Defer the processing of the issue PLOGI until after the |
| * outstanding UNREG_RPI mbox command completes, unless we |
| * are going offline. This logic does not apply for Fabric DIDs |
| */ |
| if ((ndlp->nlp_flag & (NLP_IGNR_REG_CMPL | NLP_UNREG_INP)) && |
| ((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && |
| !test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "4110 Issue PLOGI x%x deferred " |
| "on NPort x%x rpi x%x flg x%x Data:" |
| " x%px\n", |
| ndlp->nlp_defer_did, ndlp->nlp_DID, |
| ndlp->nlp_rpi, ndlp->nlp_flag, ndlp); |
| |
| /* We can only defer 1st PLOGI */ |
| if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING) |
| ndlp->nlp_defer_did = did; |
| return 0; |
| } |
| |
| cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
| ELS_CMD_PLOGI); |
| if (!elsiocb) |
| return 1; |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| /* For PLOGI request, remainder of payload is service parameters */ |
| *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; |
| pcmd += sizeof(uint32_t); |
| memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); |
| sp = (struct serv_parm *) pcmd; |
| |
| /* |
| * If we are a N-port connected to a Fabric, fix-up paramm's so logins |
| * to device on remote loops work. |
| */ |
| if (test_bit(FC_FABRIC, &vport->fc_flag) && |
| !test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) |
| sp->cmn.altBbCredit = 1; |
| |
| if (sp->cmn.fcphLow < FC_PH_4_3) |
| sp->cmn.fcphLow = FC_PH_4_3; |
| |
| if (sp->cmn.fcphHigh < FC_PH3) |
| sp->cmn.fcphHigh = FC_PH3; |
| |
| sp->cmn.valid_vendor_ver_level = 0; |
| memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); |
| sp->cmn.bbRcvSizeMsb &= 0xF; |
| |
| /* Check if the destination port supports VMID */ |
| ndlp->vmid_support = 0; |
| if (vport->vmid_priority_tagging) |
| sp->cmn.priority_tagging = 1; |
| else if (phba->cfg_vmid_app_header && |
| bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags)) |
| sp->cmn.app_hdr_support = 1; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue PLOGI: did:x%x", |
| did, 0, 0); |
| |
| /* If our firmware supports this feature, convey that |
| * information to the target using the vendor specific field. |
| */ |
| if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { |
| sp->cmn.valid_vendor_ver_level = 1; |
| sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); |
| sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP); |
| } |
| |
| phba->fc_stat.elsXmitPLOGI++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_plogi; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue PLOGI: did:x%x refcnt %d", |
| did, kref_read(&ndlp->kref), 0); |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (ret) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_cmpl_els_prli - Completion callback function for prli |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion callback function for a Process Login |
| * (PRLI) ELS command. The PRLI response IOCB status is checked for error |
| * status. If there is error status reported, PRLI retry shall be attempted |
| * by invoking the lpfc_els_retry() routine. Otherwise, the state |
| * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this |
| * ndlp to mark the PRLI completion. |
| **/ |
| static void |
| lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| struct lpfc_nodelist *ndlp; |
| char *mode; |
| u32 ulp_status; |
| u32 ulp_word4; |
| bool release_node = false; |
| |
| /* we pass cmdiocb to state machine which needs rspiocb as well */ |
| cmdiocb->rsp_iocb = rspiocb; |
| |
| ndlp = cmdiocb->ndlp; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_PRLI_SND; |
| |
| /* Driver supports multiple FC4 types. Counters matter. */ |
| vport->fc_prli_sent--; |
| ndlp->fc4_prli_sent--; |
| spin_unlock_irq(&ndlp->lock); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "PRLI cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, |
| ndlp->nlp_DID); |
| |
| /* PRLI completes to NPort <nlp_DID> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0103 PRLI completes to NPort x%06x " |
| "Data: x%x x%x x%x x%x x%x\n", |
| ndlp->nlp_DID, ulp_status, ulp_word4, |
| vport->num_disc_nodes, ndlp->fc4_prli_sent, |
| ndlp->fc4_xpt_flags); |
| |
| /* Check to see if link went down during discovery */ |
| if (lpfc_els_chk_latt(vport)) |
| goto out; |
| |
| if (ulp_status) { |
| /* Check for retry */ |
| if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { |
| /* ELS command is being retried */ |
| goto out; |
| } |
| |
| /* If we don't send GFT_ID to Fabric, a PRLI error |
| * could be expected. |
| */ |
| if (test_bit(FC_FABRIC, &vport->fc_flag) || |
| vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH) |
| mode = KERN_WARNING; |
| else |
| mode = KERN_INFO; |
| |
| /* Warn PRLI status */ |
| lpfc_printf_vlog(vport, mode, LOG_ELS, |
| "2754 PRLI DID:%06X Status:x%x/x%x, " |
| "data: x%x x%x x%x\n", |
| ndlp->nlp_DID, ulp_status, |
| ulp_word4, ndlp->nlp_state, |
| ndlp->fc4_prli_sent, ndlp->nlp_flag); |
| |
| /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ |
| if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_CMPL_PRLI); |
| |
| /* The following condition catches an inflight transition |
| * mismatch typically caused by an RSCN. Skip any |
| * processing to allow recovery. |
| */ |
| if ((ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && |
| ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) || |
| (ndlp->nlp_state == NLP_STE_NPR_NODE && |
| ndlp->nlp_flag & NLP_DELAY_TMO)) { |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE, |
| "2784 PRLI cmpl: Allow Node recovery " |
| "DID x%06x nstate x%x nflag x%x\n", |
| ndlp->nlp_DID, ndlp->nlp_state, |
| ndlp->nlp_flag); |
| goto out; |
| } |
| |
| /* |
| * For P2P topology, retain the node so that PLOGI can be |
| * attempted on it again. |
| */ |
| if (test_bit(FC_PT2PT, &vport->fc_flag)) |
| goto out; |
| |
| /* As long as this node is not registered with the SCSI |
| * or NVMe transport and no other PRLIs are outstanding, |
| * it is no longer an active node. Otherwise devloss |
| * handles the final cleanup. |
| */ |
| spin_lock_irq(&ndlp->lock); |
| if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) && |
| !ndlp->fc4_prli_sent) { |
| ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
| if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) |
| release_node = true; |
| } |
| spin_unlock_irq(&ndlp->lock); |
| |
| if (release_node) |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_DEVICE_RM); |
| } else { |
| /* Good status, call state machine. However, if another |
| * PRLI is outstanding, don't call the state machine |
| * because final disposition to Mapped or Unmapped is |
| * completed there. |
| */ |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_CMPL_PRLI); |
| } |
| |
| out: |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| /** |
| * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @retry: number of retries to the command IOCB. |
| * |
| * This routine issues a Process Login (PRLI) ELS command for the |
| * @vport. The PRLI service parameters are set up in the payload of the |
| * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine |
| * is put to the IOCB completion callback func field before invoking the |
| * routine lpfc_sli_issue_iocb() to send out PRLI command. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the PRLI ELS command. |
| * |
| * Return code |
| * 0 - successfully issued prli iocb command for @vport |
| * 1 - failed to issue prli iocb command for @vport |
| **/ |
| int |
| lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| uint8_t retry) |
| { |
| int rc = 0; |
| struct lpfc_hba *phba = vport->phba; |
| PRLI *npr; |
| struct lpfc_nvme_prli *npr_nvme; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| u32 local_nlp_type, elscmd; |
| |
| /* |
| * If we are in RSCN mode, the FC4 types supported from a |
| * previous GFT_ID command may not be accurate. So, if we |
| * are a NVME Initiator, always look for the possibility of |
| * the remote NPort beng a NVME Target. |
| */ |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| test_bit(FC_RSCN_MODE, &vport->fc_flag) && |
| vport->nvmei_support) |
| ndlp->nlp_fc4_type |= NLP_FC4_NVME; |
| local_nlp_type = ndlp->nlp_fc4_type; |
| |
| /* This routine will issue 1 or 2 PRLIs, so zero all the ndlp |
| * fields here before any of them can complete. |
| */ |
| ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); |
| ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); |
| ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; |
| ndlp->nlp_flag &= ~(NLP_FIRSTBURST | NLP_NPR_2B_DISC); |
| ndlp->nvme_fb_size = 0; |
| |
| send_next_prli: |
| if (local_nlp_type & NLP_FC4_FCP) { |
| /* Payload is 4 + 16 = 20 x14 bytes. */ |
| cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
| elscmd = ELS_CMD_PRLI; |
| } else if (local_nlp_type & NLP_FC4_NVME) { |
| /* Payload is 4 + 20 = 24 x18 bytes. */ |
| cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli)); |
| elscmd = ELS_CMD_NVMEPRLI; |
| } else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "3083 Unknown FC_TYPE x%x ndlp x%06x\n", |
| ndlp->nlp_fc4_type, ndlp->nlp_DID); |
| return 1; |
| } |
| |
| /* SLI3 ports don't support NVME. If this rport is a strict NVME |
| * FC4 type, implicitly LOGO. |
| */ |
| if (phba->sli_rev == LPFC_SLI_REV3 && |
| ndlp->nlp_fc4_type == NLP_FC4_NVME) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n", |
| ndlp->nlp_type); |
| lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); |
| return 1; |
| } |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, elscmd); |
| if (!elsiocb) |
| return 1; |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| /* For PRLI request, remainder of payload is service parameters */ |
| memset(pcmd, 0, cmdsize); |
| |
| if (local_nlp_type & NLP_FC4_FCP) { |
| /* Remainder of payload is FCP PRLI parameter page. |
| * Note: this data structure is defined as |
| * BE/LE in the structure definition so no |
| * byte swap call is made. |
| */ |
| *((uint32_t *)(pcmd)) = ELS_CMD_PRLI; |
| pcmd += sizeof(uint32_t); |
| npr = (PRLI *)pcmd; |
| |
| /* |
| * If our firmware version is 3.20 or later, |
| * set the following bits for FC-TAPE support. |
| */ |
| if (phba->vpd.rev.feaLevelHigh >= 0x02) { |
| npr->ConfmComplAllowed = 1; |
| npr->Retry = 1; |
| npr->TaskRetryIdReq = 1; |
| } |
| npr->estabImagePair = 1; |
| npr->readXferRdyDis = 1; |
| if (vport->cfg_first_burst_size) |
| npr->writeXferRdyDis = 1; |
| |
| /* For FCP support */ |
| npr->prliType = PRLI_FCP_TYPE; |
| npr->initiatorFunc = 1; |
| elsiocb->cmd_flag |= LPFC_PRLI_FCP_REQ; |
| |
| /* Remove FCP type - processed. */ |
| local_nlp_type &= ~NLP_FC4_FCP; |
| } else if (local_nlp_type & NLP_FC4_NVME) { |
| /* Remainder of payload is NVME PRLI parameter page. |
| * This data structure is the newer definition that |
| * uses bf macros so a byte swap is required. |
| */ |
| *((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI; |
| pcmd += sizeof(uint32_t); |
| npr_nvme = (struct lpfc_nvme_prli *)pcmd; |
| bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); |
| bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ |
| if (phba->nsler) { |
| bf_set(prli_nsler, npr_nvme, 1); |
| bf_set(prli_conf, npr_nvme, 1); |
| } |
| |
| /* Only initiators request first burst. */ |
| if ((phba->cfg_nvme_enable_fb) && |
| !phba->nvmet_support) |
| bf_set(prli_fba, npr_nvme, 1); |
| |
| if (phba->nvmet_support) { |
| bf_set(prli_tgt, npr_nvme, 1); |
| bf_set(prli_disc, npr_nvme, 1); |
| } else { |
| bf_set(prli_init, npr_nvme, 1); |
| bf_set(prli_conf, npr_nvme, 1); |
| } |
| |
| npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); |
| npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); |
| elsiocb->cmd_flag |= LPFC_PRLI_NVME_REQ; |
| |
| /* Remove NVME type - processed. */ |
| local_nlp_type &= ~NLP_FC4_NVME; |
| } |
| |
| phba->fc_stat.elsXmitPRLI++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_prli; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue PRLI: did:x%x refcnt %d", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), 0); |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| /* The vport counters are used for lpfc_scan_finished, but |
| * the ndlp is used to track outstanding PRLIs for different |
| * FC4 types. |
| */ |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_PRLI_SND; |
| vport->fc_prli_sent++; |
| ndlp->fc4_prli_sent++; |
| spin_unlock_irq(&ndlp->lock); |
| |
| /* The driver supports 2 FC4 types. Make sure |
| * a PRLI is issued for all types before exiting. |
| */ |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME)) |
| goto send_next_prli; |
| else |
| return 0; |
| } |
| |
| /** |
| * lpfc_rscn_disc - Perform rscn discovery for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine performs Registration State Change Notification (RSCN) |
| * discovery for a @vport. If the @vport's node port recovery count is not |
| * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all |
| * the nodes that need recovery. If none of the PLOGI were needed through |
| * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be |
| * invoked to check and handle possible more RSCN came in during the period |
| * of processing the current ones. |
| **/ |
| static void |
| lpfc_rscn_disc(struct lpfc_vport *vport) |
| { |
| lpfc_can_disctmo(vport); |
| |
| /* RSCN discovery */ |
| /* go thru NPR nodes and issue ELS PLOGIs */ |
| if (atomic_read(&vport->fc_npr_cnt)) |
| if (lpfc_els_disc_plogi(vport)) |
| return; |
| |
| lpfc_end_rscn(vport); |
| } |
| |
| /** |
| * lpfc_adisc_done - Complete the adisc phase of discovery |
| * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
| * |
| * This function is called when the final ADISC is completed during discovery. |
| * This function handles clearing link attention or issuing reg_vpi depending |
| * on whether npiv is enabled. This function also kicks off the PLOGI phase of |
| * discovery. |
| * This function is called with no locks held. |
| **/ |
| static void |
| lpfc_adisc_done(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| |
| /* |
| * For NPIV, cmpl_reg_vpi will set port_state to READY, |
| * and continue discovery. |
| */ |
| if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
| !test_bit(FC_RSCN_MODE, &vport->fc_flag) && |
| (phba->sli_rev < LPFC_SLI_REV4)) { |
| |
| /* |
| * If link is down, clear_la and reg_vpi will be done after |
| * flogi following a link up event |
| */ |
| if (!lpfc_is_link_up(phba)) |
| return; |
| |
| /* The ADISCs are complete. Doesn't matter if they |
| * succeeded or failed because the ADISC completion |
| * routine guarantees to call the state machine and |
| * the RPI is either unregistered (failed ADISC response) |
| * or the RPI is still valid and the node is marked |
| * mapped for a target. The exchanges should be in the |
| * correct state. This code is specific to SLI3. |
| */ |
| lpfc_issue_clear_la(phba, vport); |
| lpfc_issue_reg_vpi(phba, vport); |
| return; |
| } |
| /* |
| * For SLI2, we need to set port_state to READY |
| * and continue discovery. |
| */ |
| if (vport->port_state < LPFC_VPORT_READY) { |
| /* If we get here, there is nothing to ADISC */ |
| lpfc_issue_clear_la(phba, vport); |
| if (!test_bit(FC_ABORT_DISCOVERY, &vport->fc_flag)) { |
| vport->num_disc_nodes = 0; |
| /* go thru NPR list, issue ELS PLOGIs */ |
| if (atomic_read(&vport->fc_npr_cnt)) |
| lpfc_els_disc_plogi(vport); |
| if (!vport->num_disc_nodes) { |
| clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); |
| lpfc_can_disctmo(vport); |
| lpfc_end_rscn(vport); |
| } |
| } |
| vport->port_state = LPFC_VPORT_READY; |
| } else |
| lpfc_rscn_disc(vport); |
| } |
| |
| /** |
| * lpfc_more_adisc - Issue more adisc as needed |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine determines whether there are more ndlps on a @vport |
| * node list need to have Address Discover (ADISC) issued. If so, it will |
| * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's |
| * remaining nodes which need to have ADISC sent. |
| **/ |
| void |
| lpfc_more_adisc(struct lpfc_vport *vport) |
| { |
| if (vport->num_disc_nodes) |
| vport->num_disc_nodes--; |
| /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0210 Continue discovery with %d ADISCs to go " |
| "Data: x%x x%lx x%x\n", |
| vport->num_disc_nodes, |
| atomic_read(&vport->fc_adisc_cnt), |
| vport->fc_flag, vport->port_state); |
| /* Check to see if there are more ADISCs to be sent */ |
| if (test_bit(FC_NLP_MORE, &vport->fc_flag)) { |
| lpfc_set_disctmo(vport); |
| /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
| lpfc_els_disc_adisc(vport); |
| } |
| if (!vport->num_disc_nodes) |
| lpfc_adisc_done(vport); |
| return; |
| } |
| |
| /** |
| * lpfc_cmpl_els_adisc - Completion callback function for adisc |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion function for issuing the Address Discover |
| * (ADISC) command. It first checks to see whether link went down during |
| * the discovery process. If so, the node will be marked as node port |
| * recovery for issuing discover IOCB by the link attention handler and |
| * exit. Otherwise, the response status is checked. If error was reported |
| * in the response status, the ADISC command shall be retried by invoking |
| * the lpfc_els_retry() routine. Otherwise, if no error was reported in |
| * the response status, the state machine is invoked to set transition |
| * with respect to NLP_EVT_CMPL_ADISC event. |
| **/ |
| static void |
| lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| IOCB_t *irsp; |
| struct lpfc_nodelist *ndlp; |
| int disc; |
| u32 ulp_status, ulp_word4, tmo, iotag; |
| bool release_node = false; |
| |
| /* we pass cmdiocb to state machine which needs rspiocb as well */ |
| cmdiocb->rsp_iocb = rspiocb; |
| |
| ndlp = cmdiocb->ndlp; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| tmo = get_wqe_tmo(cmdiocb); |
| iotag = get_wqe_reqtag(cmdiocb); |
| } else { |
| irsp = &rspiocb->iocb; |
| tmo = irsp->ulpTimeout; |
| iotag = irsp->ulpIoTag; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "ADISC cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, |
| ndlp->nlp_DID); |
| |
| /* Since ndlp can be freed in the disc state machine, note if this node |
| * is being used during discovery. |
| */ |
| spin_lock_irq(&ndlp->lock); |
| disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
| ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
| spin_unlock_irq(&ndlp->lock); |
| /* ADISC completes to NPort <nlp_DID> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0104 ADISC completes to NPort x%x " |
| "IoTag x%x Data: x%x x%x x%x x%x x%x\n", |
| ndlp->nlp_DID, iotag, |
| ulp_status, ulp_word4, |
| tmo, disc, vport->num_disc_nodes); |
| |
| /* Check to see if link went down during discovery */ |
| if (lpfc_els_chk_latt(vport)) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| goto out; |
| } |
| |
| if (ulp_status) { |
| /* Check for retry */ |
| if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { |
| /* ELS command is being retried */ |
| if (disc) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| lpfc_set_disctmo(vport); |
| } |
| goto out; |
| } |
| /* Warn ADISC status */ |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "2755 ADISC DID:%06X Status:x%x/x%x\n", |
| ndlp->nlp_DID, ulp_status, |
| ulp_word4); |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_CMPL_ADISC); |
| |
| /* As long as this node is not registered with the SCSI or NVMe |
| * transport, it is no longer an active node. Otherwise |
| * devloss handles the final cleanup. |
| */ |
| spin_lock_irq(&ndlp->lock); |
| if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { |
| ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
| if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS)) |
| release_node = true; |
| } |
| spin_unlock_irq(&ndlp->lock); |
| |
| if (release_node) |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_DEVICE_RM); |
| } else |
| /* Good status, call state machine */ |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_CMPL_ADISC); |
| |
| /* Check to see if there are more ADISCs to be sent */ |
| if (disc && vport->num_disc_nodes) |
| lpfc_more_adisc(vport); |
| out: |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| /** |
| * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
| * @vport: pointer to a virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @retry: number of retries to the command IOCB. |
| * |
| * This routine issues an Address Discover (ADISC) for an @ndlp on a |
| * @vport. It prepares the payload of the ADISC ELS command, updates the |
| * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine |
| * to issue the ADISC ELS command. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the ADISC ELS command. |
| * |
| * Return code |
| * 0 - successfully issued adisc |
| * 1 - failed to issue adisc |
| **/ |
| int |
| lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| uint8_t retry) |
| { |
| int rc = 0; |
| struct lpfc_hba *phba = vport->phba; |
| ADISC *ap; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| |
| cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_ADISC); |
| if (!elsiocb) |
| return 1; |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| /* For ADISC request, remainder of payload is service parameters */ |
| *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; |
| pcmd += sizeof(uint32_t); |
| |
| /* Fill in ADISC payload */ |
| ap = (ADISC *) pcmd; |
| ap->hardAL_PA = phba->fc_pref_ALPA; |
| memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
| memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); |
| ap->DID = be32_to_cpu(vport->fc_myDID); |
| |
| phba->fc_stat.elsXmitADISC++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_adisc; |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_ADISC_SND; |
| spin_unlock_irq(&ndlp->lock); |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| goto err; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue ADISC: did:x%x refcnt %d", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), 0); |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| goto err; |
| } |
| |
| return 0; |
| |
| err: |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_ADISC_SND; |
| spin_unlock_irq(&ndlp->lock); |
| return 1; |
| } |
| |
| /** |
| * lpfc_cmpl_els_logo - Completion callback function for logo |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion function for issuing the ELS Logout (LOGO) |
| * command. If no error status was reported from the LOGO response, the |
| * state machine of the associated ndlp shall be invoked for transition with |
| * respect to NLP_EVT_CMPL_LOGO event. |
| **/ |
| static void |
| lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| struct lpfc_vport *vport = ndlp->vport; |
| IOCB_t *irsp; |
| unsigned long flags; |
| uint32_t skip_recovery = 0; |
| int wake_up_waiter = 0; |
| u32 ulp_status; |
| u32 ulp_word4; |
| u32 tmo, iotag; |
| |
| /* we pass cmdiocb to state machine which needs rspiocb as well */ |
| cmdiocb->rsp_iocb = rspiocb; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| tmo = get_wqe_tmo(cmdiocb); |
| iotag = get_wqe_reqtag(cmdiocb); |
| } else { |
| irsp = &rspiocb->iocb; |
| tmo = irsp->ulpTimeout; |
| iotag = irsp->ulpIoTag; |
| } |
| |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_LOGO_SND; |
| if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { |
| wake_up_waiter = 1; |
| ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; |
| } |
| spin_unlock_irq(&ndlp->lock); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "LOGO cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, |
| ndlp->nlp_DID); |
| |
| /* LOGO completes to NPort <nlp_DID> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0105 LOGO completes to NPort x%x " |
| "IoTag x%x refcnt %d nflags x%x xflags x%x " |
| "Data: x%x x%x x%x x%x\n", |
| ndlp->nlp_DID, iotag, |
| kref_read(&ndlp->kref), ndlp->nlp_flag, |
| ndlp->fc4_xpt_flags, ulp_status, ulp_word4, |
| tmo, vport->num_disc_nodes); |
| |
| if (lpfc_els_chk_latt(vport)) { |
| skip_recovery = 1; |
| goto out; |
| } |
| |
| /* The LOGO will not be retried on failure. A LOGO was |
| * issued to the remote rport and a ACC or RJT or no Answer are |
| * all acceptable. Note the failure and move forward with |
| * discovery. The PLOGI will retry. |
| */ |
| if (ulp_status) { |
| /* Warn LOGO status */ |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "2756 LOGO, No Retry DID:%06X " |
| "Status:x%x/x%x\n", |
| ndlp->nlp_DID, ulp_status, |
| ulp_word4); |
| |
| if (lpfc_error_lost_link(vport, ulp_status, ulp_word4)) |
| skip_recovery = 1; |
| } |
| |
| /* Call state machine. This will unregister the rpi if needed. */ |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); |
| |
| if (skip_recovery) |
| goto out; |
| |
| /* The driver sets this flag for an NPIV instance that doesn't want to |
| * log into the remote port. |
| */ |
| if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
| spin_lock_irq(&ndlp->lock); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| ndlp->nlp_flag |= NLP_RELEASE_RPI; |
| ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_DEVICE_RM); |
| goto out_rsrc_free; |
| } |
| |
| out: |
| /* At this point, the LOGO processing is complete. NOTE: For a |
| * pt2pt topology, we are assuming the NPortID will only change |
| * on link up processing. For a LOGO / PLOGI initiated by the |
| * Initiator, we are assuming the NPortID is not going to change. |
| */ |
| |
| if (wake_up_waiter && ndlp->logo_waitq) |
| wake_up(ndlp->logo_waitq); |
| /* |
| * If the node is a target, the handling attempts to recover the port. |
| * For any other port type, the rpi is unregistered as an implicit |
| * LOGO. |
| */ |
| if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) && |
| skip_recovery == 0) { |
| lpfc_cancel_retry_delay_tmo(vport, ndlp); |
| spin_lock_irqsave(&ndlp->lock, flags); |
| ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
| spin_unlock_irqrestore(&ndlp->lock, flags); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3187 LOGO completes to NPort x%x: Start " |
| "Recovery Data: x%x x%x x%x x%x\n", |
| ndlp->nlp_DID, ulp_status, |
| ulp_word4, tmo, |
| vport->num_disc_nodes); |
| |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| |
| lpfc_disc_start(vport); |
| return; |
| } |
| |
| /* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the |
| * driver sends a LOGO to the rport to cleanup. For fabric and |
| * initiator ports cleanup the node as long as it the node is not |
| * register with the transport. |
| */ |
| if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
| NLP_EVT_DEVICE_RM); |
| } |
| out_rsrc_free: |
| /* Driver is done with the I/O. */ |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| /** |
| * lpfc_issue_els_logo - Issue a logo to an node on a vport |
| * @vport: pointer to a virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @retry: number of retries to the command IOCB. |
| * |
| * This routine constructs and issues an ELS Logout (LOGO) iocb command |
| * to a remote node, referred by an @ndlp on a @vport. It constructs the |
| * payload of the IOCB, properly sets up the @ndlp state, and invokes the |
| * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the LOGO ELS command. |
| * |
| * Callers of this routine are expected to unregister the RPI first |
| * |
| * Return code |
| * 0 - successfully issued logo |
| * 1 - failed to issue logo |
| **/ |
| int |
| lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| uint8_t retry) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| int rc; |
| |
| spin_lock_irq(&ndlp->lock); |
| if (ndlp->nlp_flag & NLP_LOGO_SND) { |
| spin_unlock_irq(&ndlp->lock); |
| return 0; |
| } |
| spin_unlock_irq(&ndlp->lock); |
| |
| cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_LOGO); |
| if (!elsiocb) |
| return 1; |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; |
| pcmd += sizeof(uint32_t); |
| |
| /* Fill in LOGO payload */ |
| *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
| pcmd += sizeof(uint32_t); |
| memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); |
| |
| phba->fc_stat.elsXmitLOGO++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_logo; |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_LOGO_SND; |
| ndlp->nlp_flag &= ~NLP_ISSUE_LOGO; |
| spin_unlock_irq(&ndlp->lock); |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| goto err; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue LOGO: did:x%x refcnt %d", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), 0); |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| goto err; |
| } |
| |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| spin_unlock_irq(&ndlp->lock); |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); |
| return 0; |
| |
| err: |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_LOGO_SND; |
| spin_unlock_irq(&ndlp->lock); |
| return 1; |
| } |
| |
| /** |
| * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is a generic completion callback function for ELS commands. |
| * Specifically, it is the callback function which does not need to perform |
| * any command specific operations. It is currently used by the ELS command |
| * issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel |
| * Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). |
| * Other than certain debug loggings, this callback function simply invokes the |
| * lpfc_els_chk_latt() routine to check whether link went down during the |
| * discovery process. |
| **/ |
| static void |
| lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| struct lpfc_nodelist *free_ndlp; |
| IOCB_t *irsp; |
| u32 ulp_status, ulp_word4, tmo, did, iotag; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| did = get_job_els_rsp64_did(phba, cmdiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| tmo = get_wqe_tmo(cmdiocb); |
| iotag = get_wqe_reqtag(cmdiocb); |
| } else { |
| irsp = &rspiocb->iocb; |
| tmo = irsp->ulpTimeout; |
| iotag = irsp->ulpIoTag; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "ELS cmd cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, did); |
| |
| /* ELS cmd tag <ulpIoTag> completes */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", |
| iotag, ulp_status, ulp_word4, tmo); |
| |
| /* Check to see if link went down during discovery */ |
| lpfc_els_chk_latt(vport); |
| |
| free_ndlp = cmdiocb->ndlp; |
| |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(free_ndlp); |
| } |
| |
| /** |
| * lpfc_reg_fab_ctrl_node - RPI register the fabric controller node. |
| * @vport: pointer to lpfc_vport data structure. |
| * @fc_ndlp: pointer to the fabric controller (0xfffffd) node. |
| * |
| * This routine registers the rpi assigned to the fabric controller |
| * NPort_ID (0xfffffd) with the port and moves the node to UNMAPPED |
| * state triggering a registration with the SCSI transport. |
| * |
| * This routine is single out because the fabric controller node |
| * does not receive a PLOGI. This routine is consumed by the |
| * SCR and RDF ELS commands. Callers are expected to qualify |
| * with SLI4 first. |
| **/ |
| static int |
| lpfc_reg_fab_ctrl_node(struct lpfc_vport *vport, struct lpfc_nodelist *fc_ndlp) |
| { |
| int rc = 0; |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_nodelist *ns_ndlp; |
| LPFC_MBOXQ_t *mbox; |
| |
| if (fc_ndlp->nlp_flag & NLP_RPI_REGISTERED) |
| return rc; |
| |
| ns_ndlp = lpfc_findnode_did(vport, NameServer_DID); |
| if (!ns_ndlp) |
| return -ENODEV; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0935 %s: Reg FC RPI x%x on FC DID x%x NSSte: x%x\n", |
| __func__, fc_ndlp->nlp_rpi, fc_ndlp->nlp_DID, |
| ns_ndlp->nlp_state); |
| if (ns_ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) |
| return -ENODEV; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, |
| "0936 %s: no memory for reg_login " |
| "Data: x%x x%x x%x x%x\n", __func__, |
| fc_ndlp->nlp_DID, fc_ndlp->nlp_state, |
| fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); |
| return -ENOMEM; |
| } |
| rc = lpfc_reg_rpi(phba, vport->vpi, fc_ndlp->nlp_DID, |
| (u8 *)&vport->fc_sparam, mbox, fc_ndlp->nlp_rpi); |
| if (rc) { |
| rc = -EACCES; |
| goto out; |
| } |
| |
| fc_ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; |
| mbox->mbox_cmpl = lpfc_mbx_cmpl_fc_reg_login; |
| mbox->ctx_ndlp = lpfc_nlp_get(fc_ndlp); |
| if (!mbox->ctx_ndlp) { |
| rc = -ENOMEM; |
| goto out; |
| } |
| |
| mbox->vport = vport; |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| rc = -ENODEV; |
| lpfc_nlp_put(fc_ndlp); |
| goto out; |
| } |
| /* Success path. Exit. */ |
| lpfc_nlp_set_state(vport, fc_ndlp, |
| NLP_STE_REG_LOGIN_ISSUE); |
| return 0; |
| |
| out: |
| lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, |
| "0938 %s: failed to format reg_login " |
| "Data: x%x x%x x%x x%x\n", __func__, |
| fc_ndlp->nlp_DID, fc_ndlp->nlp_state, |
| fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi); |
| return rc; |
| } |
| |
| /** |
| * lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is a generic completion callback function for Discovery ELS cmd. |
| * Currently used by the ELS command issuing routines for the ELS State Change |
| * Request (SCR), lpfc_issue_els_scr() and the ELS RDF, lpfc_issue_els_rdf(). |
| * These commands will be retried once only for ELS timeout errors. |
| **/ |
| static void |
| lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| IOCB_t *irsp; |
| struct lpfc_els_rdf_rsp *prdf; |
| struct lpfc_dmabuf *pcmd, *prsp; |
| u32 *pdata; |
| u32 cmd; |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| u32 ulp_status, ulp_word4, tmo, did, iotag; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| did = get_job_els_rsp64_did(phba, cmdiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| tmo = get_wqe_tmo(cmdiocb); |
| iotag = get_wqe_reqtag(cmdiocb); |
| } else { |
| irsp = &rspiocb->iocb; |
| tmo = irsp->ulpTimeout; |
| iotag = irsp->ulpIoTag; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "ELS cmd cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, did); |
| |
| /* ELS cmd tag <ulpIoTag> completes */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, |
| "0217 ELS cmd tag x%x completes Data: x%x x%x x%x x%x\n", |
| iotag, ulp_status, ulp_word4, tmo, cmdiocb->retry); |
| |
| pcmd = cmdiocb->cmd_dmabuf; |
| if (!pcmd) |
| goto out; |
| |
| pdata = (u32 *)pcmd->virt; |
| if (!pdata) |
| goto out; |
| cmd = *pdata; |
| |
| /* Only 1 retry for ELS Timeout only */ |
| if (ulp_status == IOSTAT_LOCAL_REJECT && |
| ((ulp_word4 & IOERR_PARAM_MASK) == |
| IOERR_SEQUENCE_TIMEOUT)) { |
| cmdiocb->retry++; |
| if (cmdiocb->retry <= 1) { |
| switch (cmd) { |
| case ELS_CMD_SCR: |
| lpfc_issue_els_scr(vport, cmdiocb->retry); |
| break; |
| case ELS_CMD_EDC: |
| lpfc_issue_els_edc(vport, cmdiocb->retry); |
| break; |
| case ELS_CMD_RDF: |
| lpfc_issue_els_rdf(vport, cmdiocb->retry); |
| break; |
| } |
| goto out; |
| } |
| phba->fc_stat.elsRetryExceeded++; |
| } |
| if (cmd == ELS_CMD_EDC) { |
| /* must be called before checking uplStatus and returning */ |
| lpfc_cmpl_els_edc(phba, cmdiocb, rspiocb); |
| return; |
| } |
| if (ulp_status) { |
| /* ELS discovery cmd completes with error */ |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, |
| "4203 ELS cmd x%x error: x%x x%X\n", cmd, |
| ulp_status, ulp_word4); |
| goto out; |
| } |
| |
| /* The RDF response doesn't have any impact on the running driver |
| * but the notification descriptors are dumped here for support. |
| */ |
| if (cmd == ELS_CMD_RDF) { |
| int i; |
| |
| prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
| if (!prsp) |
| goto out; |
| |
| prdf = (struct lpfc_els_rdf_rsp *)prsp->virt; |
| if (!prdf) |
| goto out; |
| if (!lpfc_is_els_acc_rsp(prsp)) |
| goto out; |
| |
| for (i = 0; i < ELS_RDF_REG_TAG_CNT && |
| i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++) |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_ELS | LOG_CGN_MGMT, |
| "4677 Fabric RDF Notification Grant " |
| "Data: 0x%08x Reg: %x %x\n", |
| be32_to_cpu( |
| prdf->reg_d1.desc_tags[i]), |
| phba->cgn_reg_signal, |
| phba->cgn_reg_fpin); |
| } |
| |
| out: |
| /* Check to see if link went down during discovery */ |
| lpfc_els_chk_latt(vport); |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| /** |
| * lpfc_issue_els_scr - Issue a scr to an node on a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @retry: retry counter for the command IOCB. |
| * |
| * This routine issues a State Change Request (SCR) to a fabric node |
| * on a @vport. The remote node is Fabric Controller (0xfffffd). It |
| * first search the @vport node list to find the matching ndlp. If no such |
| * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An |
| * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() |
| * routine is invoked to send the SCR IOCB. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the SCR ELS command. |
| * |
| * Return code |
| * 0 - Successfully issued scr command |
| * 1 - Failed to issue scr command |
| **/ |
| int |
| lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry) |
| { |
| int rc = 0; |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| struct lpfc_nodelist *ndlp; |
| |
| cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
| |
| ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); |
| if (!ndlp) { |
| ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); |
| if (!ndlp) |
| return 1; |
| lpfc_enqueue_node(vport, ndlp); |
| } |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_SCR); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| rc = lpfc_reg_fab_ctrl_node(vport, ndlp); |
| if (rc) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, |
| "0937 %s: Failed to reg fc node, rc %d\n", |
| __func__, rc); |
| return 1; |
| } |
| } |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| *((uint32_t *) (pcmd)) = ELS_CMD_SCR; |
| pcmd += sizeof(uint32_t); |
| |
| /* For SCR, remainder of payload is SCR parameter page */ |
| memset(pcmd, 0, sizeof(SCR)); |
| ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue SCR: did:x%x", |
| ndlp->nlp_DID, 0, 0); |
| |
| phba->fc_stat.elsXmitSCR++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue SCR: did:x%x refcnt %d", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), 0); |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric) |
| * or the other nport (pt2pt). |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @retry: number of retries to the command IOCB. |
| * |
| * This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD) |
| * when connected to a fabric, or to the remote port when connected |
| * in point-to-point mode. When sent to the Fabric Controller, it will |
| * replay the RSCN to registered recipients. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the RSCN ELS command. |
| * |
| * Return code |
| * 0 - Successfully issued RSCN command |
| * 1 - Failed to issue RSCN command |
| **/ |
| int |
| lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry) |
| { |
| int rc = 0; |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *elsiocb; |
| struct lpfc_nodelist *ndlp; |
| struct { |
| struct fc_els_rscn rscn; |
| struct fc_els_rscn_page portid; |
| } *event; |
| uint32_t nportid; |
| uint16_t cmdsize = sizeof(*event); |
| |
| /* Not supported for private loop */ |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && |
| !test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) |
| return 1; |
| |
| if (test_bit(FC_PT2PT, &vport->fc_flag)) { |
| /* find any mapped nport - that would be the other nport */ |
| ndlp = lpfc_findnode_mapped(vport); |
| if (!ndlp) |
| return 1; |
| } else { |
| nportid = FC_FID_FCTRL; |
| /* find the fabric controller node */ |
| ndlp = lpfc_findnode_did(vport, nportid); |
| if (!ndlp) { |
| /* if one didn't exist, make one */ |
| ndlp = lpfc_nlp_init(vport, nportid); |
| if (!ndlp) |
| return 1; |
| lpfc_enqueue_node(vport, ndlp); |
| } |
| } |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_RSCN_XMT); |
| |
| if (!elsiocb) |
| return 1; |
| |
| event = elsiocb->cmd_dmabuf->virt; |
| |
| event->rscn.rscn_cmd = ELS_RSCN; |
| event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page); |
| event->rscn.rscn_plen = cpu_to_be16(cmdsize); |
| |
| nportid = vport->fc_myDID; |
| /* appears that page flags must be 0 for fabric to broadcast RSCN */ |
| event->portid.rscn_page_flags = 0; |
| event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16; |
| event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8; |
| event->portid.rscn_fid[2] = nportid & 0x000000FF; |
| |
| phba->fc_stat.elsXmitRSCN++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue RSCN: did:x%x", |
| ndlp->nlp_DID, 0, 0); |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @nportid: N_Port identifier to the remote node. |
| * @retry: number of retries to the command IOCB. |
| * |
| * This routine issues a Fibre Channel Address Resolution Response |
| * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) |
| * is passed into the function. It first search the @vport node list to find |
| * the matching ndlp. If no such ndlp is found, a new ndlp shall be created |
| * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the |
| * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the FARPR ELS command. |
| * |
| * Return code |
| * 0 - Successfully issued farpr command |
| * 1 - Failed to issue farpr command |
| **/ |
| static int |
| lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
| { |
| int rc = 0; |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *elsiocb; |
| FARP *fp; |
| uint8_t *pcmd; |
| uint32_t *lp; |
| uint16_t cmdsize; |
| struct lpfc_nodelist *ondlp; |
| struct lpfc_nodelist *ndlp; |
| |
| cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
| |
| ndlp = lpfc_findnode_did(vport, nportid); |
| if (!ndlp) { |
| ndlp = lpfc_nlp_init(vport, nportid); |
| if (!ndlp) |
| return 1; |
| lpfc_enqueue_node(vport, ndlp); |
| } |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_FARPR); |
| if (!elsiocb) |
| return 1; |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; |
| pcmd += sizeof(uint32_t); |
| |
| /* Fill in FARPR payload */ |
| fp = (FARP *) (pcmd); |
| memset(fp, 0, sizeof(FARP)); |
| lp = (uint32_t *) pcmd; |
| *lp++ = be32_to_cpu(nportid); |
| *lp++ = be32_to_cpu(vport->fc_myDID); |
| fp->Rflags = 0; |
| fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); |
| |
| memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
| memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); |
| ondlp = lpfc_findnode_did(vport, nportid); |
| if (ondlp) { |
| memcpy(&fp->OportName, &ondlp->nlp_portname, |
| sizeof(struct lpfc_name)); |
| memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
| sizeof(struct lpfc_name)); |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue FARPR: did:x%x", |
| ndlp->nlp_DID, 0, 0); |
| |
| phba->fc_stat.elsXmitFARPR++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| /* The additional lpfc_nlp_put will cause the following |
| * lpfc_els_free_iocb routine to trigger the release of |
| * the node. |
| */ |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| /* This will cause the callback-function lpfc_cmpl_els_cmd to |
| * trigger the release of the node. |
| */ |
| /* Don't release reference count as RDF is likely outstanding */ |
| return 0; |
| } |
| |
| /** |
| * lpfc_issue_els_rdf - Register for diagnostic functions from the fabric. |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @retry: retry counter for the command IOCB. |
| * |
| * This routine issues an ELS RDF to the Fabric Controller to register |
| * for diagnostic functions. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the RDF ELS command. |
| * |
| * Return code |
| * 0 - Successfully issued rdf command |
| * 1 - Failed to issue rdf command |
| **/ |
| int |
| lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *elsiocb; |
| struct lpfc_els_rdf_req *prdf; |
| struct lpfc_nodelist *ndlp; |
| uint16_t cmdsize; |
| int rc; |
| |
| cmdsize = sizeof(*prdf); |
| |
| ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID); |
| if (!ndlp) { |
| ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID); |
| if (!ndlp) |
| return -ENODEV; |
| lpfc_enqueue_node(vport, ndlp); |
| } |
| |
| /* RDF ELS is not required on an NPIV VN_Port. */ |
| if (vport->port_type == LPFC_NPIV_PORT) |
| return -EACCES; |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_RDF); |
| if (!elsiocb) |
| return -ENOMEM; |
| |
| /* Configure the payload for the supported FPIN events. */ |
| prdf = (struct lpfc_els_rdf_req *)elsiocb->cmd_dmabuf->virt; |
| memset(prdf, 0, cmdsize); |
| prdf->rdf.fpin_cmd = ELS_RDF; |
| prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) - |
| sizeof(struct fc_els_rdf)); |
| prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER); |
| prdf->reg_d1.reg_desc.desc_len = cpu_to_be32( |
| FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1)); |
| prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT); |
| prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY); |
| prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY); |
| prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST); |
| prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, |
| "6444 Xmit RDF to remote NPORT x%x Reg: %x %x\n", |
| ndlp->nlp_DID, phba->cgn_reg_signal, |
| phba->cgn_reg_fpin); |
| |
| phba->cgn_fpin_frequency = LPFC_FPIN_INIT_FREQ; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return -EIO; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue RDF: did:x%x refcnt %d", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), 0); |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return -EIO; |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_rdf - Receive RDF ELS request from the fabric. |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * A received RDF implies a possible change to fabric supported diagnostic |
| * functions. This routine sends LS_ACC and then has the Nx_Port issue a new |
| * RDF request to reregister for supported diagnostic functions. |
| * |
| * Return code |
| * 0 - Success |
| * -EIO - Failed to process received RDF |
| **/ |
| static int |
| lpfc_els_rcv_rdf(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| /* Send LS_ACC */ |
| if (lpfc_els_rsp_acc(vport, ELS_CMD_RDF, cmdiocb, ndlp, NULL)) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, |
| "1623 Failed to RDF_ACC from x%x for x%x\n", |
| ndlp->nlp_DID, vport->fc_myDID); |
| return -EIO; |
| } |
| |
| /* Issue new RDF for reregistering */ |
| if (lpfc_issue_els_rdf(vport, 0)) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, |
| "2623 Failed to re register RDF for x%x\n", |
| vport->fc_myDID); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_least_capable_settings - helper function for EDC rsp processing |
| * @phba: pointer to lpfc hba data structure. |
| * @pcgd: pointer to congestion detection descriptor in EDC rsp. |
| * |
| * This helper routine determines the least capable setting for |
| * congestion signals, signal freq, including scale, from the |
| * congestion detection descriptor in the EDC rsp. The routine |
| * sets @phba values in preparation for a set_featues mailbox. |
| **/ |
| static void |
| lpfc_least_capable_settings(struct lpfc_hba *phba, |
| struct fc_diag_cg_sig_desc *pcgd) |
| { |
| u32 rsp_sig_cap = 0, drv_sig_cap = 0; |
| u32 rsp_sig_freq_cyc = 0, rsp_sig_freq_scale = 0; |
| |
| /* Get rsp signal and frequency capabilities. */ |
| rsp_sig_cap = be32_to_cpu(pcgd->xmt_signal_capability); |
| rsp_sig_freq_cyc = be16_to_cpu(pcgd->xmt_signal_frequency.count); |
| rsp_sig_freq_scale = be16_to_cpu(pcgd->xmt_signal_frequency.units); |
| |
| /* If the Fport does not support signals. Set FPIN only */ |
| if (rsp_sig_cap == EDC_CG_SIG_NOTSUPPORTED) |
| goto out_no_support; |
| |
| /* Apply the xmt scale to the xmt cycle to get the correct frequency. |
| * Adapter default is 100 millisSeconds. Convert all xmt cycle values |
| * to milliSeconds. |
| */ |
| switch (rsp_sig_freq_scale) { |
| case EDC_CG_SIGFREQ_SEC: |
| rsp_sig_freq_cyc *= MSEC_PER_SEC; |
| break; |
| case EDC_CG_SIGFREQ_MSEC: |
| rsp_sig_freq_cyc = 1; |
| break; |
| default: |
| goto out_no_support; |
| } |
| |
| /* Convenient shorthand. */ |
| drv_sig_cap = phba->cgn_reg_signal; |
| |
| /* Choose the least capable frequency. */ |
| if (rsp_sig_freq_cyc > phba->cgn_sig_freq) |
| phba->cgn_sig_freq = rsp_sig_freq_cyc; |
| |
| /* Should be some common signals support. Settle on least capable |
| * signal and adjust FPIN values. Initialize defaults to ease the |
| * decision. |
| */ |
| phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; |
| phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; |
| if (rsp_sig_cap == EDC_CG_SIG_WARN_ONLY && |
| (drv_sig_cap == EDC_CG_SIG_WARN_ONLY || |
| drv_sig_cap == EDC_CG_SIG_WARN_ALARM)) { |
| phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; |
| phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; |
| } |
| if (rsp_sig_cap == EDC_CG_SIG_WARN_ALARM) { |
| if (drv_sig_cap == EDC_CG_SIG_WARN_ALARM) { |
| phba->cgn_reg_signal = EDC_CG_SIG_WARN_ALARM; |
| phba->cgn_reg_fpin = LPFC_CGN_FPIN_NONE; |
| } |
| if (drv_sig_cap == EDC_CG_SIG_WARN_ONLY) { |
| phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY; |
| phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN; |
| } |
| } |
| |
| /* We are NOT recording signal frequency in congestion info buffer */ |
| return; |
| |
| out_no_support: |
| phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; |
| phba->cgn_sig_freq = 0; |
| phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; |
| } |
| |
| DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag, |
| FC_LS_TLV_DTAG_INIT); |
| |
| /** |
| * lpfc_cmpl_els_edc - Completion callback function for EDC |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion callback function for issuing the Exchange |
| * Diagnostic Capabilities (EDC) command. The driver issues an EDC to |
| * notify the FPort of its Congestion and Link Fault capabilities. This |
| * routine parses the FPort's response and decides on the least common |
| * values applicable to both FPort and NPort for Warnings and Alarms that |
| * are communicated via hardware signals. |
| **/ |
| static void |
| lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| IOCB_t *irsp_iocb; |
| struct fc_els_edc_resp *edc_rsp; |
| struct fc_tlv_desc *tlv; |
| struct fc_diag_cg_sig_desc *pcgd; |
| struct fc_diag_lnkflt_desc *plnkflt; |
| struct lpfc_dmabuf *pcmd, *prsp; |
| const char *dtag_nm; |
| u32 *pdata, dtag; |
| int desc_cnt = 0, bytes_remain; |
| bool rcv_cap_desc = false; |
| struct lpfc_nodelist *ndlp; |
| u32 ulp_status, ulp_word4, tmo, did, iotag; |
| |
| ndlp = cmdiocb->ndlp; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| did = get_job_els_rsp64_did(phba, rspiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| tmo = get_wqe_tmo(rspiocb); |
| iotag = get_wqe_reqtag(rspiocb); |
| } else { |
| irsp_iocb = &rspiocb->iocb; |
| tmo = irsp_iocb->ulpTimeout; |
| iotag = irsp_iocb->ulpIoTag; |
| } |
| |
| lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, |
| "EDC cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, did); |
| |
| /* ELS cmd tag <ulpIoTag> completes */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, |
| "4201 EDC cmd tag x%x completes Data: x%x x%x x%x\n", |
| iotag, ulp_status, ulp_word4, tmo); |
| |
| pcmd = cmdiocb->cmd_dmabuf; |
| if (!pcmd) |
| goto out; |
| |
| pdata = (u32 *)pcmd->virt; |
| if (!pdata) |
| goto out; |
| |
| /* Need to clear signal values, send features MB and RDF with FPIN. */ |
| if (ulp_status) |
| goto out; |
| |
| prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
| if (!prsp) |
| goto out; |
| |
| edc_rsp = prsp->virt; |
| if (!edc_rsp) |
| goto out; |
| |
| /* ELS cmd tag <ulpIoTag> completes */ |
| lpfc_printf_log(phba, KERN_INFO, |
| LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, |
| "4676 Fabric EDC Rsp: " |
| "0x%02x, 0x%08x\n", |
| edc_rsp->acc_hdr.la_cmd, |
| be32_to_cpu(edc_rsp->desc_list_len)); |
| |
| if (!lpfc_is_els_acc_rsp(prsp)) |
| goto out; |
| |
| /* |
| * Payload length in bytes is the response descriptor list |
| * length minus the 12 bytes of Link Service Request |
| * Information descriptor in the reply. |
| */ |
| bytes_remain = be32_to_cpu(edc_rsp->desc_list_len) - |
| sizeof(struct fc_els_lsri_desc); |
| if (bytes_remain <= 0) |
| goto out; |
| |
| tlv = edc_rsp->desc; |
| |
| /* |
| * cycle through EDC diagnostic descriptors to find the |
| * congestion signaling capability descriptor |
| */ |
| while (bytes_remain) { |
| if (bytes_remain < FC_TLV_DESC_HDR_SZ) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, |
| "6461 Truncated TLV hdr on " |
| "Diagnostic descriptor[%d]\n", |
| desc_cnt); |
| goto out; |
| } |
| |
| dtag = be32_to_cpu(tlv->desc_tag); |
| switch (dtag) { |
| case ELS_DTAG_LNK_FAULT_CAP: |
| if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || |
| FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != |
| sizeof(struct fc_diag_lnkflt_desc)) { |
| lpfc_printf_log(phba, KERN_WARNING, |
| LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, |
| "6462 Truncated Link Fault Diagnostic " |
| "descriptor[%d]: %d vs 0x%zx 0x%zx\n", |
| desc_cnt, bytes_remain, |
| FC_TLV_DESC_SZ_FROM_LENGTH(tlv), |
| sizeof(struct fc_diag_lnkflt_desc)); |
| goto out; |
| } |
| plnkflt = (struct fc_diag_lnkflt_desc *)tlv; |
| lpfc_printf_log(phba, KERN_INFO, |
| LOG_ELS | LOG_LDS_EVENT, |
| "4617 Link Fault Desc Data: 0x%08x 0x%08x " |
| "0x%08x 0x%08x 0x%08x\n", |
| be32_to_cpu(plnkflt->desc_tag), |
| be32_to_cpu(plnkflt->desc_len), |
| be32_to_cpu( |
| plnkflt->degrade_activate_threshold), |
| be32_to_cpu( |
| plnkflt->degrade_deactivate_threshold), |
| be32_to_cpu(plnkflt->fec_degrade_interval)); |
| break; |
| case ELS_DTAG_CG_SIGNAL_CAP: |
| if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || |
| FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != |
| sizeof(struct fc_diag_cg_sig_desc)) { |
| lpfc_printf_log( |
| phba, KERN_WARNING, LOG_CGN_MGMT, |
| "6463 Truncated Cgn Signal Diagnostic " |
| "descriptor[%d]: %d vs 0x%zx 0x%zx\n", |
| desc_cnt, bytes_remain, |
| FC_TLV_DESC_SZ_FROM_LENGTH(tlv), |
| sizeof(struct fc_diag_cg_sig_desc)); |
| goto out; |
| } |
| |
| pcgd = (struct fc_diag_cg_sig_desc *)tlv; |
| lpfc_printf_log( |
| phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, |
| "4616 CGN Desc Data: 0x%08x 0x%08x " |
| "0x%08x 0x%04x 0x%04x 0x%08x 0x%04x 0x%04x\n", |
| be32_to_cpu(pcgd->desc_tag), |
| be32_to_cpu(pcgd->desc_len), |
| be32_to_cpu(pcgd->xmt_signal_capability), |
| be16_to_cpu(pcgd->xmt_signal_frequency.count), |
| be16_to_cpu(pcgd->xmt_signal_frequency.units), |
| be32_to_cpu(pcgd->rcv_signal_capability), |
| be16_to_cpu(pcgd->rcv_signal_frequency.count), |
| be16_to_cpu(pcgd->rcv_signal_frequency.units)); |
| |
| /* Compare driver and Fport capabilities and choose |
| * least common. |
| */ |
| lpfc_least_capable_settings(phba, pcgd); |
| rcv_cap_desc = true; |
| break; |
| default: |
| dtag_nm = lpfc_get_tlv_dtag_nm(dtag); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, |
| "4919 unknown Diagnostic " |
| "Descriptor[%d]: tag x%x (%s)\n", |
| desc_cnt, dtag, dtag_nm); |
| } |
| |
| bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); |
| tlv = fc_tlv_next_desc(tlv); |
| desc_cnt++; |
| } |
| |
| out: |
| if (!rcv_cap_desc) { |
| phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; |
| phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; |
| phba->cgn_sig_freq = 0; |
| lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT, |
| "4202 EDC rsp error - sending RDF " |
| "for FPIN only.\n"); |
| } |
| |
| lpfc_config_cgn_signal(phba); |
| |
| /* Check to see if link went down during discovery */ |
| lpfc_els_chk_latt(phba->pport); |
| lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD, |
| "EDC Cmpl: did:x%x refcnt %d", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), 0); |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| static void |
| lpfc_format_edc_lft_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) |
| { |
| struct fc_diag_lnkflt_desc *lft = (struct fc_diag_lnkflt_desc *)tlv; |
| |
| lft->desc_tag = cpu_to_be32(ELS_DTAG_LNK_FAULT_CAP); |
| lft->desc_len = cpu_to_be32( |
| FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_lnkflt_desc)); |
| |
| lft->degrade_activate_threshold = |
| cpu_to_be32(phba->degrade_activate_threshold); |
| lft->degrade_deactivate_threshold = |
| cpu_to_be32(phba->degrade_deactivate_threshold); |
| lft->fec_degrade_interval = cpu_to_be32(phba->fec_degrade_interval); |
| } |
| |
| static void |
| lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) |
| { |
| struct fc_diag_cg_sig_desc *cgd = (struct fc_diag_cg_sig_desc *)tlv; |
| |
| /* We are assuming cgd was zero'ed before calling this routine */ |
| |
| /* Configure the congestion detection capability */ |
| cgd->desc_tag = cpu_to_be32(ELS_DTAG_CG_SIGNAL_CAP); |
| |
| /* Descriptor len doesn't include the tag or len fields. */ |
| cgd->desc_len = cpu_to_be32( |
| FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_cg_sig_desc)); |
| |
| /* xmt_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. |
| * xmt_signal_frequency.count already set to 0. |
| * xmt_signal_frequency.units already set to 0. |
| */ |
| |
| if (phba->cmf_active_mode == LPFC_CFG_OFF) { |
| /* rcv_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED. |
| * rcv_signal_frequency.count already set to 0. |
| * rcv_signal_frequency.units already set to 0. |
| */ |
| phba->cgn_sig_freq = 0; |
| return; |
| } |
| switch (phba->cgn_reg_signal) { |
| case EDC_CG_SIG_WARN_ONLY: |
| cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ONLY); |
| break; |
| case EDC_CG_SIG_WARN_ALARM: |
| cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ALARM); |
| break; |
| default: |
| /* rcv_signal_capability left 0 thus no support */ |
| break; |
| } |
| |
| /* We start negotiation with lpfc_fabric_cgn_frequency, after |
| * the completion we settle on the higher frequency. |
| */ |
| cgd->rcv_signal_frequency.count = |
| cpu_to_be16(lpfc_fabric_cgn_frequency); |
| cgd->rcv_signal_frequency.units = |
| cpu_to_be16(EDC_CG_SIGFREQ_MSEC); |
| } |
| |
| static bool |
| lpfc_link_is_lds_capable(struct lpfc_hba *phba) |
| { |
| if (!(phba->lmt & LMT_64Gb)) |
| return false; |
| if (phba->sli_rev != LPFC_SLI_REV4) |
| return false; |
| |
| if (phba->sli4_hba.conf_trunk) { |
| if (phba->trunk_link.phy_lnk_speed == LPFC_USER_LINK_SPEED_64G) |
| return true; |
| } else if (phba->fc_linkspeed == LPFC_LINK_SPEED_64GHZ) { |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * lpfc_issue_els_edc - Exchange Diagnostic Capabilities with the fabric. |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @retry: retry counter for the command iocb. |
| * |
| * This routine issues an ELS EDC to the F-Port Controller to communicate |
| * this N_Port's support of hardware signals in its Congestion |
| * Capabilities Descriptor. |
| * |
| * Note: This routine does not check if one or more signals are |
| * set in the cgn_reg_signal parameter. The caller makes the |
| * decision to enforce cgn_reg_signal as nonzero or zero depending |
| * on the conditions. During Fabric requests, the driver |
| * requires cgn_reg_signals to be nonzero. But a dynamic request |
| * to set the congestion mode to OFF from Monitor or Manage |
| * would correctly issue an EDC with no signals enabled to |
| * turn off switch functionality and then update the FW. |
| * |
| * Return code |
| * 0 - Successfully issued edc command |
| * 1 - Failed to issue edc command |
| **/ |
| int |
| lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *elsiocb; |
| struct fc_els_edc *edc_req; |
| struct fc_tlv_desc *tlv; |
| u16 cmdsize; |
| struct lpfc_nodelist *ndlp; |
| u8 *pcmd = NULL; |
| u32 cgn_desc_size, lft_desc_size; |
| int rc; |
| |
| if (vport->port_type == LPFC_NPIV_PORT) |
| return -EACCES; |
| |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) |
| return -ENODEV; |
| |
| cgn_desc_size = (phba->cgn_init_reg_signal) ? |
| sizeof(struct fc_diag_cg_sig_desc) : 0; |
| lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? |
| sizeof(struct fc_diag_lnkflt_desc) : 0; |
| cmdsize = cgn_desc_size + lft_desc_size; |
| |
| /* Skip EDC if no applicable descriptors */ |
| if (!cmdsize) |
| goto try_rdf; |
| |
| cmdsize += sizeof(struct fc_els_edc); |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_EDC); |
| if (!elsiocb) |
| goto try_rdf; |
| |
| /* Configure the payload for the supported Diagnostics capabilities. */ |
| pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; |
| memset(pcmd, 0, cmdsize); |
| edc_req = (struct fc_els_edc *)pcmd; |
| edc_req->desc_len = cpu_to_be32(cgn_desc_size + lft_desc_size); |
| edc_req->edc_cmd = ELS_EDC; |
| tlv = edc_req->desc; |
| |
| if (cgn_desc_size) { |
| lpfc_format_edc_cgn_desc(phba, tlv); |
| phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; |
| tlv = fc_tlv_next_desc(tlv); |
| } |
| |
| if (lft_desc_size) |
| lpfc_format_edc_lft_desc(phba, tlv); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT, |
| "4623 Xmit EDC to remote " |
| "NPORT x%x reg_sig x%x reg_fpin:x%x\n", |
| ndlp->nlp_DID, phba->cgn_reg_signal, |
| phba->cgn_reg_fpin); |
| |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return -EIO; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue EDC: did:x%x refcnt %d", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), 0); |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| /* The additional lpfc_nlp_put will cause the following |
| * lpfc_els_free_iocb routine to trigger the rlease of |
| * the node. |
| */ |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| goto try_rdf; |
| } |
| return 0; |
| try_rdf: |
| phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM; |
| phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; |
| rc = lpfc_issue_els_rdf(vport, 0); |
| return rc; |
| } |
| |
| /** |
| * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @nlp: pointer to a node-list data structure. |
| * |
| * This routine cancels the timer with a delayed IOCB-command retry for |
| * a @vport's @ndlp. It stops the timer for the delayed function retrial and |
| * removes the ELS retry event if it presents. In addition, if the |
| * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB |
| * commands are sent for the @vport's nodes that require issuing discovery |
| * ADISC. |
| **/ |
| void |
| lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
| { |
| struct lpfc_work_evt *evtp; |
| |
| if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
| return; |
| spin_lock_irq(&nlp->lock); |
| nlp->nlp_flag &= ~NLP_DELAY_TMO; |
| spin_unlock_irq(&nlp->lock); |
| del_timer_sync(&nlp->nlp_delayfunc); |
| nlp->nlp_last_elscmd = 0; |
| if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
| list_del_init(&nlp->els_retry_evt.evt_listp); |
| /* Decrement nlp reference count held for the delayed retry */ |
| evtp = &nlp->els_retry_evt; |
| lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); |
| } |
| if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
| spin_lock_irq(&nlp->lock); |
| nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
| spin_unlock_irq(&nlp->lock); |
| if (vport->num_disc_nodes) { |
| if (vport->port_state < LPFC_VPORT_READY) { |
| /* Check if there are more ADISCs to be sent */ |
| lpfc_more_adisc(vport); |
| } else { |
| /* Check if there are more PLOGIs to be sent */ |
| lpfc_more_plogi(vport); |
| if (vport->num_disc_nodes == 0) { |
| clear_bit(FC_NDISC_ACTIVE, |
| &vport->fc_flag); |
| lpfc_can_disctmo(vport); |
| lpfc_end_rscn(vport); |
| } |
| } |
| } |
| } |
| return; |
| } |
| |
| /** |
| * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
| * @t: pointer to the timer function associated data (ndlp). |
| * |
| * This routine is invoked by the ndlp delayed-function timer to check |
| * whether there is any pending ELS retry event(s) with the node. If not, it |
| * simply returns. Otherwise, if there is at least one ELS delayed event, it |
| * adds the delayed events to the HBA work list and invokes the |
| * lpfc_worker_wake_up() routine to wake up worker thread to process the |
| * event. Note that lpfc_nlp_get() is called before posting the event to |
| * the work list to hold reference count of ndlp so that it guarantees the |
| * reference to ndlp will still be available when the worker thread gets |
| * to the event associated with the ndlp. |
| **/ |
| void |
| lpfc_els_retry_delay(struct timer_list *t) |
| { |
| struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc); |
| struct lpfc_vport *vport = ndlp->vport; |
| struct lpfc_hba *phba = vport->phba; |
| unsigned long flags; |
| struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
| |
| /* Hold a node reference for outstanding queued work */ |
| if (!lpfc_nlp_get(ndlp)) |
| return; |
| |
| spin_lock_irqsave(&phba->hbalock, flags); |
| if (!list_empty(&evtp->evt_listp)) { |
| spin_unlock_irqrestore(&phba->hbalock, flags); |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| evtp->evt_arg1 = ndlp; |
| evtp->evt = LPFC_EVT_ELS_RETRY; |
| list_add_tail(&evtp->evt_listp, &phba->work_list); |
| spin_unlock_irqrestore(&phba->hbalock, flags); |
| |
| lpfc_worker_wake_up(phba); |
| } |
| |
| /** |
| * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine is the worker-thread handler for processing the @ndlp delayed |
| * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves |
| * the last ELS command from the associated ndlp and invokes the proper ELS |
| * function according to the delayed ELS command to retry the command. |
| **/ |
| void |
| lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_vport *vport = ndlp->vport; |
| uint32_t cmd, retry; |
| |
| spin_lock_irq(&ndlp->lock); |
| cmd = ndlp->nlp_last_elscmd; |
| ndlp->nlp_last_elscmd = 0; |
| |
| if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { |
| spin_unlock_irq(&ndlp->lock); |
| return; |
| } |
| |
| ndlp->nlp_flag &= ~NLP_DELAY_TMO; |
| spin_unlock_irq(&ndlp->lock); |
| /* |
| * If a discovery event readded nlp_delayfunc after timer |
| * firing and before processing the timer, cancel the |
| * nlp_delayfunc. |
| */ |
| del_timer_sync(&ndlp->nlp_delayfunc); |
| retry = ndlp->nlp_retry; |
| ndlp->nlp_retry = 0; |
| |
| switch (cmd) { |
| case ELS_CMD_FLOGI: |
| lpfc_issue_els_flogi(vport, ndlp, retry); |
| break; |
| case ELS_CMD_PLOGI: |
| if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
| } |
| break; |
| case ELS_CMD_ADISC: |
| if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
| } |
| break; |
| case ELS_CMD_PRLI: |
| case ELS_CMD_NVMEPRLI: |
| if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
| } |
| break; |
| case ELS_CMD_LOGO: |
| if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); |
| } |
| break; |
| case ELS_CMD_FDISC: |
| if (!test_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag)) |
| lpfc_issue_els_fdisc(vport, ndlp, retry); |
| break; |
| } |
| return; |
| } |
| |
| /** |
| * lpfc_link_reset - Issue link reset |
| * @vport: pointer to a virtual N_Port data structure. |
| * |
| * This routine performs link reset by sending INIT_LINK mailbox command. |
| * For SLI-3 adapter, link attention interrupt is enabled before issuing |
| * INIT_LINK mailbox command. |
| * |
| * Return code |
| * 0 - Link reset initiated successfully |
| * 1 - Failed to initiate link reset |
| **/ |
| int |
| lpfc_link_reset(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mbox; |
| uint32_t control; |
| int rc; |
| |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
| "2851 Attempt link reset\n"); |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2852 Failed to allocate mbox memory"); |
| return 1; |
| } |
| |
| /* Enable Link attention interrupts */ |
| if (phba->sli_rev <= LPFC_SLI_REV3) { |
| spin_lock_irq(&phba->hbalock); |
| phba->sli.sli_flag |= LPFC_PROCESS_LA; |
| control = readl(phba->HCregaddr); |
| control |= HC_LAINT_ENA; |
| writel(control, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| lpfc_init_link(phba, mbox, phba->cfg_topology, |
| phba->cfg_link_speed); |
| mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| mbox->vport = vport; |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2853 Failed to issue INIT_LINK " |
| "mbox command, rc:x%x\n", rc); |
| mempool_free(mbox, phba->mbox_mem_pool); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_retry - Make retry decision on an els command iocb |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine makes a retry decision on an ELS command IOCB, which has |
| * failed. The following ELS IOCBs use this function for retrying the command |
| * when previously issued command responsed with error status: FLOGI, PLOGI, |
| * PRLI, ADISC and FDISC. Based on the ELS command type and the |
| * returned error status, it makes the decision whether a retry shall be |
| * issued for the command, and whether a retry shall be made immediately or |
| * delayed. In the former case, the corresponding ELS command issuing-function |
| * is called to retry the command. In the later case, the ELS command shall |
| * be posted to the ndlp delayed event and delayed function timer set to the |
| * ndlp for the delayed command issusing. |
| * |
| * Return code |
| * 0 - No retry of els command is made |
| * 1 - Immediate or delayed retry of els command is made |
| **/ |
| static int |
| lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| union lpfc_wqe128 *irsp = &rspiocb->wqe; |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; |
| uint32_t *elscmd; |
| struct ls_rjt stat; |
| int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
| int logerr = 0; |
| uint32_t cmd = 0; |
| uint32_t did; |
| int link_reset = 0, rc; |
| u32 ulp_status = get_job_ulpstatus(phba, rspiocb); |
| u32 ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| |
| /* Note: cmd_dmabuf may be 0 for internal driver abort |
| * of delays ELS command. |
| */ |
| |
| if (pcmd && pcmd->virt) { |
| elscmd = (uint32_t *) (pcmd->virt); |
| cmd = *elscmd++; |
| } |
| |
| if (ndlp) |
| did = ndlp->nlp_DID; |
| else { |
| /* We should only hit this case for retrying PLOGI */ |
| did = get_job_els_rsp64_did(phba, rspiocb); |
| ndlp = lpfc_findnode_did(vport, did); |
| if (!ndlp && (cmd != ELS_CMD_PLOGI)) |
| return 0; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Retry ELS: wd7:x%x wd4:x%x did:x%x", |
| *(((uint32_t *)irsp) + 7), ulp_word4, did); |
| |
| switch (ulp_status) { |
| case IOSTAT_FCP_RSP_ERROR: |
| break; |
| case IOSTAT_REMOTE_STOP: |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| /* This IO was aborted by the target, we don't |
| * know the rxid and because we did not send the |
| * ABTS we cannot generate and RRQ. |
| */ |
| lpfc_set_rrq_active(phba, ndlp, |
| cmdiocb->sli4_lxritag, 0, 0); |
| } |
| break; |
| case IOSTAT_LOCAL_REJECT: |
| switch ((ulp_word4 & IOERR_PARAM_MASK)) { |
| case IOERR_LOOP_OPEN_FAILURE: |
| if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
| delay = 1000; |
| retry = 1; |
| break; |
| |
| case IOERR_ILLEGAL_COMMAND: |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0124 Retry illegal cmd x%x " |
| "retry:x%x delay:x%x\n", |
| cmd, cmdiocb->retry, delay); |
| retry = 1; |
| /* All command's retry policy */ |
| maxretry = 8; |
| if (cmdiocb->retry > 2) |
| delay = 1000; |
| break; |
| |
| case IOERR_NO_RESOURCES: |
| logerr = 1; /* HBA out of resources */ |
| retry = 1; |
| if (cmdiocb->retry > 100) |
| delay = 100; |
| maxretry = 250; |
| break; |
| |
| case IOERR_ILLEGAL_FRAME: |
| delay = 100; |
| retry = 1; |
| break; |
| |
| case IOERR_INVALID_RPI: |
| if (cmd == ELS_CMD_PLOGI && |
| did == NameServer_DID) { |
| /* Continue forever if plogi to */ |
| /* the nameserver fails */ |
| maxretry = 0; |
| delay = 100; |
| } else if (cmd == ELS_CMD_PRLI && |
| ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { |
| /* State-command disagreement. The PRLI was |
| * failed with an invalid rpi meaning there |
| * some unexpected state change. Don't retry. |
| */ |
| maxretry = 0; |
| retry = 0; |
| break; |
| } |
| retry = 1; |
| break; |
| |
| case IOERR_SEQUENCE_TIMEOUT: |
| if (cmd == ELS_CMD_PLOGI && |
| did == NameServer_DID && |
| (cmdiocb->retry + 1) == maxretry) { |
| /* Reset the Link */ |
| link_reset = 1; |
| break; |
| } |
| retry = 1; |
| delay = 100; |
| break; |
| case IOERR_SLI_ABORTED: |
| /* Retry ELS PLOGI command? |
| * Possibly the rport just wasn't ready. |
| */ |
| if (cmd == ELS_CMD_PLOGI) { |
| /* No retry if state change */ |
| if (ndlp && |
| ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) |
| goto out_retry; |
| retry = 1; |
| maxretry = 2; |
| } |
| break; |
| } |
| break; |
| |
| case IOSTAT_NPORT_RJT: |
| case IOSTAT_FABRIC_RJT: |
| if (ulp_word4 & RJT_UNAVAIL_TEMP) { |
| retry = 1; |
| break; |
| } |
| break; |
| |
| case IOSTAT_NPORT_BSY: |
| case IOSTAT_FABRIC_BSY: |
| logerr = 1; /* Fabric / Remote NPort out of resources */ |
| retry = 1; |
| break; |
| |
| case IOSTAT_LS_RJT: |
| stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); |
| /* Added for Vendor specifc support |
| * Just keep retrying for these Rsn / Exp codes |
| */ |
| if (test_bit(FC_PT2PT, &vport->fc_flag) && |
| cmd == ELS_CMD_NVMEPRLI) { |
| switch (stat.un.b.lsRjtRsnCode) { |
| case LSRJT_UNABLE_TPC: |
| case LSRJT_INVALID_CMD: |
| case LSRJT_LOGICAL_ERR: |
| case LSRJT_CMD_UNSUPPORTED: |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, |
| "0168 NVME PRLI LS_RJT " |
| "reason %x port doesn't " |
| "support NVME, disabling NVME\n", |
| stat.un.b.lsRjtRsnCode); |
| retry = 0; |
| set_bit(FC_PT2PT_NO_NVME, &vport->fc_flag); |
| goto out_retry; |
| } |
| } |
| switch (stat.un.b.lsRjtRsnCode) { |
| case LSRJT_UNABLE_TPC: |
| /* Special case for PRLI LS_RJTs. Recall that lpfc |
| * uses a single routine to issue both PRLI FC4 types. |
| * If the PRLI is rejected because that FC4 type |
| * isn't really supported, don't retry and cause |
| * multiple transport registrations. Otherwise, parse |
| * the reason code/reason code explanation and take the |
| * appropriate action. |
| */ |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_DISCOVERY | LOG_ELS | LOG_NODE, |
| "0153 ELS cmd x%x LS_RJT by x%x. " |
| "RsnCode x%x RsnCodeExp x%x\n", |
| cmd, did, stat.un.b.lsRjtRsnCode, |
| stat.un.b.lsRjtRsnCodeExp); |
| |
| switch (stat.un.b.lsRjtRsnCodeExp) { |
| case LSEXP_CANT_GIVE_DATA: |
| case LSEXP_CMD_IN_PROGRESS: |
| if (cmd == ELS_CMD_PLOGI) { |
| delay = 1000; |
| maxretry = 48; |
| } |
| retry = 1; |
| break; |
| case LSEXP_REQ_UNSUPPORTED: |
| case LSEXP_NO_RSRC_ASSIGN: |
| /* These explanation codes get no retry. */ |
| if (cmd == ELS_CMD_PRLI || |
| cmd == ELS_CMD_NVMEPRLI) |
| break; |
| fallthrough; |
| default: |
| /* Limit the delay and retry action to a limited |
| * cmd set. There are other ELS commands where |
| * a retry is not expected. |
| */ |
| if (cmd == ELS_CMD_PLOGI || |
| cmd == ELS_CMD_PRLI || |
| cmd == ELS_CMD_NVMEPRLI) { |
| delay = 1000; |
| maxretry = lpfc_max_els_tries + 1; |
| retry = 1; |
| } |
| break; |
| } |
| |
| if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
| (cmd == ELS_CMD_FDISC) && |
| (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "0125 FDISC (x%x). " |
| "Fabric out of resources\n", |
| stat.un.lsRjtError); |
| lpfc_vport_set_state(vport, |
| FC_VPORT_NO_FABRIC_RSCS); |
| } |
| break; |
| |
| case LSRJT_LOGICAL_BSY: |
| if ((cmd == ELS_CMD_PLOGI) || |
| (cmd == ELS_CMD_PRLI) || |
| (cmd == ELS_CMD_NVMEPRLI)) { |
| delay = 1000; |
| maxretry = 48; |
| } else if (cmd == ELS_CMD_FDISC) { |
| /* FDISC retry policy */ |
| maxretry = 48; |
| if (cmdiocb->retry >= 32) |
| delay = 1000; |
| } |
| retry = 1; |
| break; |
| |
| case LSRJT_LOGICAL_ERR: |
| /* There are some cases where switches return this |
| * error when they are not ready and should be returning |
| * Logical Busy. We should delay every time. |
| */ |
| if (cmd == ELS_CMD_FDISC && |
| stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { |
| maxretry = 3; |
| delay = 1000; |
| retry = 1; |
| } else if (cmd == ELS_CMD_FLOGI && |
| stat.un.b.lsRjtRsnCodeExp == |
| LSEXP_NOTHING_MORE) { |
| vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; |
| retry = 1; |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "0820 FLOGI (x%x). " |
| "BBCredit Not Supported\n", |
| stat.un.lsRjtError); |
| } |
| break; |
| |
| case LSRJT_PROTOCOL_ERR: |
| if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
| (cmd == ELS_CMD_FDISC) && |
| ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || |
| (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) |
| ) { |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "0122 FDISC (x%x). " |
| "Fabric Detected Bad WWN\n", |
| stat.un.lsRjtError); |
| lpfc_vport_set_state(vport, |
| FC_VPORT_FABRIC_REJ_WWN); |
| } |
| break; |
| case LSRJT_VENDOR_UNIQUE: |
| if ((stat.un.b.vendorUnique == 0x45) && |
| (cmd == ELS_CMD_FLOGI)) { |
| goto out_retry; |
| } |
| break; |
| case LSRJT_CMD_UNSUPPORTED: |
| /* lpfc nvmet returns this type of LS_RJT when it |
| * receives an FCP PRLI because lpfc nvmet only |
| * support NVME. ELS request is terminated for FCP4 |
| * on this rport. |
| */ |
| if (stat.un.b.lsRjtRsnCodeExp == |
| LSEXP_REQ_UNSUPPORTED) { |
| if (cmd == ELS_CMD_PRLI) |
| goto out_retry; |
| } |
| break; |
| } |
| break; |
| |
| case IOSTAT_INTERMED_RSP: |
| case IOSTAT_BA_RJT: |
| break; |
| |
| default: |
| break; |
| } |
| |
| if (link_reset) { |
| rc = lpfc_link_reset(vport); |
| if (rc) { |
| /* Do not give up. Retry PLOGI one more time and attempt |
| * link reset if PLOGI fails again. |
| */ |
| retry = 1; |
| delay = 100; |
| goto out_retry; |
| } |
| return 1; |
| } |
| |
| if (did == FDMI_DID) |
| retry = 1; |
| |
| if ((cmd == ELS_CMD_FLOGI) && |
| (phba->fc_topology != LPFC_TOPOLOGY_LOOP) && |
| !lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { |
| /* FLOGI retry policy */ |
| retry = 1; |
| /* retry FLOGI forever */ |
| if (phba->link_flag != LS_LOOPBACK_MODE) |
| maxretry = 0; |
| else |
| maxretry = 2; |
| |
| if (cmdiocb->retry >= 100) |
| delay = 5000; |
| else if (cmdiocb->retry >= 32) |
| delay = 1000; |
| } else if ((cmd == ELS_CMD_FDISC) && |
| !lpfc_error_lost_link(vport, ulp_status, ulp_word4)) { |
| /* retry FDISCs every second up to devloss */ |
| retry = 1; |
| maxretry = vport->cfg_devloss_tmo; |
| delay = 1000; |
| } |
| |
| cmdiocb->retry++; |
| if (maxretry && (cmdiocb->retry >= maxretry)) { |
| phba->fc_stat.elsRetryExceeded++; |
| retry = 0; |
| } |
| |
| if (test_bit(FC_UNLOADING, &vport->load_flag)) |
| retry = 0; |
| |
| out_retry: |
| if (retry) { |
| if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) { |
| /* Stop retrying PLOGI and FDISC if in FCF discovery */ |
| if (phba->fcf.fcf_flag & FCF_DISCOVERY) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "2849 Stop retry ELS command " |
| "x%x to remote NPORT x%x, " |
| "Data: x%x x%x\n", cmd, did, |
| cmdiocb->retry, delay); |
| return 0; |
| } |
| } |
| |
| /* Retry ELS command <elsCmd> to remote NPORT <did> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0107 Retry ELS command x%x to remote " |
| "NPORT x%x Data: x%x x%x\n", |
| cmd, did, cmdiocb->retry, delay); |
| |
| if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
| ((ulp_status != IOSTAT_LOCAL_REJECT) || |
| ((ulp_word4 & IOERR_PARAM_MASK) != |
| IOERR_NO_RESOURCES))) { |
| /* Don't reset timer for no resources */ |
| |
| /* If discovery / RSCN timer is running, reset it */ |
| if (timer_pending(&vport->fc_disctmo) || |
| test_bit(FC_RSCN_MODE, &vport->fc_flag)) |
| lpfc_set_disctmo(vport); |
| } |
| |
| phba->fc_stat.elsXmitRetry++; |
| if (ndlp && delay) { |
| phba->fc_stat.elsDelayRetry++; |
| ndlp->nlp_retry = cmdiocb->retry; |
| |
| /* delay is specified in milliseconds */ |
| mod_timer(&ndlp->nlp_delayfunc, |
| jiffies + msecs_to_jiffies(delay)); |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_DELAY_TMO; |
| spin_unlock_irq(&ndlp->lock); |
| |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| if ((cmd == ELS_CMD_PRLI) || |
| (cmd == ELS_CMD_NVMEPRLI)) |
| lpfc_nlp_set_state(vport, ndlp, |
| NLP_STE_PRLI_ISSUE); |
| else if (cmd != ELS_CMD_ADISC) |
| lpfc_nlp_set_state(vport, ndlp, |
| NLP_STE_NPR_NODE); |
| ndlp->nlp_last_elscmd = cmd; |
| |
| return 1; |
| } |
| switch (cmd) { |
| case ELS_CMD_FLOGI: |
| lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
| return 1; |
| case ELS_CMD_FDISC: |
| lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); |
| return 1; |
| case ELS_CMD_PLOGI: |
| if (ndlp) { |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, |
| NLP_STE_PLOGI_ISSUE); |
| } |
| lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
| return 1; |
| case ELS_CMD_ADISC: |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
| lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); |
| return 1; |
| case ELS_CMD_PRLI: |
| case ELS_CMD_NVMEPRLI: |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
| lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); |
| return 1; |
| case ELS_CMD_LOGO: |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); |
| lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); |
| return 1; |
| } |
| } |
| /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
| if (logerr) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0137 No retry ELS command x%x to remote " |
| "NPORT x%x: Out of Resources: Error:x%x/%x " |
| "IoTag x%x\n", |
| cmd, did, ulp_status, ulp_word4, |
| cmdiocb->iotag); |
| } |
| else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0108 No retry ELS command x%x to remote " |
| "NPORT x%x Retried:%d Error:x%x/%x " |
| "IoTag x%x nflags x%x\n", |
| cmd, did, cmdiocb->retry, ulp_status, |
| ulp_word4, cmdiocb->iotag, |
| (ndlp ? ndlp->nlp_flag : 0)); |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
| * @phba: pointer to lpfc hba data structure. |
| * @buf_ptr1: pointer to the lpfc DMA buffer data structure. |
| * |
| * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) |
| * associated with a command IOCB back to the lpfc DMA buffer pool. It first |
| * checks to see whether there is a lpfc DMA buffer associated with the |
| * response of the command IOCB. If so, it will be released before releasing |
| * the lpfc DMA buffer associated with the IOCB itself. |
| * |
| * Return code |
| * 0 - Successfully released lpfc DMA buffer (currently, always return 0) |
| **/ |
| static int |
| lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
| { |
| struct lpfc_dmabuf *buf_ptr; |
| |
| /* Free the response before processing the command. */ |
| if (!list_empty(&buf_ptr1->list)) { |
| list_remove_head(&buf_ptr1->list, buf_ptr, |
| struct lpfc_dmabuf, |
| list); |
| lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); |
| kfree(buf_ptr); |
| } |
| lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); |
| kfree(buf_ptr1); |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
| * @phba: pointer to lpfc hba data structure. |
| * @buf_ptr: pointer to the lpfc dma buffer data structure. |
| * |
| * This routine releases the lpfc Direct Memory Access (DMA) buffer |
| * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer |
| * pool. |
| * |
| * Return code |
| * 0 - Successfully released lpfc DMA buffer (currently, always return 0) |
| **/ |
| static int |
| lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
| { |
| lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); |
| kfree(buf_ptr); |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_free_iocb - Free a command iocb and its associated resources |
| * @phba: pointer to lpfc hba data structure. |
| * @elsiocb: pointer to lpfc els command iocb data structure. |
| * |
| * This routine frees a command IOCB and its associated resources. The |
| * command IOCB data structure contains the reference to various associated |
| * resources, these fields must be set to NULL if the associated reference |
| * not present: |
| * cmd_dmabuf - reference to cmd. |
| * cmd_dmabuf->next - reference to rsp |
| * rsp_dmabuf - unused |
| * bpl_dmabuf - reference to bpl |
| * |
| * It first properly decrements the reference count held on ndlp for the |
| * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not |
| * set, it invokes the lpfc_els_free_data() routine to release the Direct |
| * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it |
| * adds the DMA buffer the @phba data structure for the delayed release. |
| * If reference to the Buffer Pointer List (BPL) is present, the |
| * lpfc_els_free_bpl() routine is invoked to release the DMA memory |
| * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is |
| * invoked to release the IOCB data structure back to @phba IOCBQ list. |
| * |
| * Return code |
| * 0 - Success (currently, always return 0) |
| **/ |
| int |
| lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
| { |
| struct lpfc_dmabuf *buf_ptr, *buf_ptr1; |
| |
| /* The I/O iocb is complete. Clear the node and first dmbuf */ |
| elsiocb->ndlp = NULL; |
| |
| /* cmd_dmabuf = cmd, cmd_dmabuf->next = rsp, bpl_dmabuf = bpl */ |
| if (elsiocb->cmd_dmabuf) { |
| if (elsiocb->cmd_flag & LPFC_DELAY_MEM_FREE) { |
| /* Firmware could still be in progress of DMAing |
| * payload, so don't free data buffer till after |
| * a hbeat. |
| */ |
| elsiocb->cmd_flag &= ~LPFC_DELAY_MEM_FREE; |
| buf_ptr = elsiocb->cmd_dmabuf; |
| elsiocb->cmd_dmabuf = NULL; |
| if (buf_ptr) { |
| buf_ptr1 = NULL; |
| spin_lock_irq(&phba->hbalock); |
| if (!list_empty(&buf_ptr->list)) { |
| list_remove_head(&buf_ptr->list, |
| buf_ptr1, struct lpfc_dmabuf, |
| list); |
| INIT_LIST_HEAD(&buf_ptr1->list); |
| list_add_tail(&buf_ptr1->list, |
| &phba->elsbuf); |
| phba->elsbuf_cnt++; |
| } |
| INIT_LIST_HEAD(&buf_ptr->list); |
| list_add_tail(&buf_ptr->list, &phba->elsbuf); |
| phba->elsbuf_cnt++; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| } else { |
| buf_ptr1 = elsiocb->cmd_dmabuf; |
| lpfc_els_free_data(phba, buf_ptr1); |
| elsiocb->cmd_dmabuf = NULL; |
| } |
| } |
| |
| if (elsiocb->bpl_dmabuf) { |
| buf_ptr = elsiocb->bpl_dmabuf; |
| lpfc_els_free_bpl(phba, buf_ptr); |
| elsiocb->bpl_dmabuf = NULL; |
| } |
| lpfc_sli_release_iocbq(phba, elsiocb); |
| return 0; |
| } |
| |
| /** |
| * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion callback function to the Logout (LOGO) |
| * Accept (ACC) Response ELS command. This routine is invoked to indicate |
| * the completion of the LOGO process. If the node has transitioned to NPR, |
| * this routine unregisters the RPI if it is still registered. The |
| * lpfc_els_free_iocb() is invoked to release the IOCB data structure. |
| **/ |
| static void |
| lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| struct lpfc_vport *vport = cmdiocb->vport; |
| u32 ulp_status, ulp_word4; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "ACC LOGO cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, ndlp->nlp_DID); |
| /* ACC to LOGO completes to NPort <nlp_DID> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0109 ACC to LOGO completes to NPort x%x refcnt %d " |
| "last els x%x Data: x%x x%x x%x\n", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), |
| ndlp->nlp_last_elscmd, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi); |
| |
| /* This clause allows the LOGO ACC to complete and free resources |
| * for the Fabric Domain Controller. It does deliberately skip |
| * the unreg_rpi and release rpi because some fabrics send RDP |
| * requests after logging out from the initiator. |
| */ |
| if (ndlp->nlp_type & NLP_FABRIC && |
| ((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK)) |
| goto out; |
| |
| if (ndlp->nlp_state == NLP_STE_NPR_NODE) { |
| if (ndlp->nlp_flag & NLP_RPI_REGISTERED) |
| lpfc_unreg_rpi(vport, ndlp); |
| |
| /* If came from PRLO, then PRLO_ACC is done. |
| * Start rediscovery now. |
| */ |
| if (ndlp->nlp_last_elscmd == ELS_CMD_PRLO) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
| lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
| } |
| } |
| |
| out: |
| /* |
| * The driver received a LOGO from the rport and has ACK'd it. |
| * At this point, the driver is done so release the IOCB |
| */ |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| /** |
| * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * This routine is the completion callback function for unregister default |
| * RPI (Remote Port Index) mailbox command to the @phba. It simply releases |
| * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and |
| * decrements the ndlp reference count held for this completion callback |
| * function. After that, it invokes the lpfc_drop_node to check |
| * whether it is appropriate to release the node. |
| **/ |
| void |
| lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; |
| u32 mbx_flag = pmb->mbox_flag; |
| u32 mbx_cmd = pmb->u.mb.mbxCommand; |
| |
| if (ndlp) { |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, |
| "0006 rpi x%x DID:%x flg:%x %d x%px " |
| "mbx_cmd x%x mbx_flag x%x x%px\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, |
| kref_read(&ndlp->kref), ndlp, mbx_cmd, |
| mbx_flag, pmb); |
| |
| /* This ends the default/temporary RPI cleanup logic for this |
| * ndlp and the node and rpi needs to be released. Free the rpi |
| * first on an UNREG_LOGIN and then release the final |
| * references. |
| */ |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; |
| if (mbx_cmd == MBX_UNREG_LOGIN) |
| ndlp->nlp_flag &= ~NLP_UNREG_INP; |
| spin_unlock_irq(&ndlp->lock); |
| lpfc_nlp_put(ndlp); |
| lpfc_drop_node(ndlp->vport, ndlp); |
| } |
| |
| lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED); |
| } |
| |
| /** |
| * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion callback function for ELS Response IOCB |
| * command. In normal case, this callback function just properly sets the |
| * nlp_flag bitmap in the ndlp data structure, if the mbox command reference |
| * field in the command IOCB is not NULL, the referred mailbox command will |
| * be send out, and then invokes the lpfc_els_free_iocb() routine to release |
| * the IOCB. |
| **/ |
| static void |
| lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; |
| struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; |
| IOCB_t *irsp; |
| LPFC_MBOXQ_t *mbox = NULL; |
| u32 ulp_status, ulp_word4, tmo, did, iotag; |
| |
| if (!vport) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, |
| "3177 null vport in ELS rsp\n"); |
| goto out; |
| } |
| if (cmdiocb->context_un.mbox) |
| mbox = cmdiocb->context_un.mbox; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| did = get_job_els_rsp64_did(phba, cmdiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| tmo = get_wqe_tmo(cmdiocb); |
| iotag = get_wqe_reqtag(cmdiocb); |
| } else { |
| irsp = &rspiocb->iocb; |
| tmo = irsp->ulpTimeout; |
| iotag = irsp->ulpIoTag; |
| } |
| |
| /* Check to see if link went down during discovery */ |
| if (!ndlp || lpfc_els_chk_latt(vport)) { |
| if (mbox) |
| lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); |
| goto out; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "ELS rsp cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, did); |
| /* ELS response tag <ulpIoTag> completes */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0110 ELS response tag x%x completes " |
| "Data: x%x x%x x%x x%x x%x x%x x%x x%x %p %p\n", |
| iotag, ulp_status, ulp_word4, tmo, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi, kref_read(&ndlp->kref), mbox, ndlp); |
| if (mbox) { |
| if (ulp_status == 0 |
| && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { |
| if (!lpfc_unreg_rpi(vport, ndlp) && |
| !test_bit(FC_PT2PT, &vport->fc_flag)) { |
| if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || |
| ndlp->nlp_state == |
| NLP_STE_REG_LOGIN_ISSUE) { |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_DISCOVERY, |
| "0314 PLOGI recov " |
| "DID x%x " |
| "Data: x%x x%x x%x\n", |
| ndlp->nlp_DID, |
| ndlp->nlp_state, |
| ndlp->nlp_rpi, |
| ndlp->nlp_flag); |
| goto out_free_mbox; |
| } |
| } |
| |
| /* Increment reference count to ndlp to hold the |
| * reference to ndlp for the callback function. |
| */ |
| mbox->ctx_ndlp = lpfc_nlp_get(ndlp); |
| if (!mbox->ctx_ndlp) |
| goto out_free_mbox; |
| |
| mbox->vport = vport; |
| if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
| mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; |
| mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; |
| } |
| else { |
| mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, |
| NLP_STE_REG_LOGIN_ISSUE); |
| } |
| |
| ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; |
| if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
| != MBX_NOT_FINISHED) |
| goto out; |
| |
| /* Decrement the ndlp reference count we |
| * set for this failed mailbox command. |
| */ |
| lpfc_nlp_put(ndlp); |
| ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; |
| |
| /* ELS rsp: Cannot issue reg_login for <NPortid> */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0138 ELS rsp: Cannot issue reg_login for x%x " |
| "Data: x%x x%x x%x\n", |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi); |
| } |
| out_free_mbox: |
| lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); |
| } |
| out: |
| if (ndlp && shost) { |
| spin_lock_irq(&ndlp->lock); |
| if (mbox) |
| ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; |
| ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI; |
| spin_unlock_irq(&ndlp->lock); |
| } |
| |
| /* An SLI4 NPIV instance wants to drop the node at this point under |
| * these conditions and release the RPI. |
| */ |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| vport && vport->port_type == LPFC_NPIV_PORT && |
| !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { |
| if (ndlp->nlp_flag & NLP_RELEASE_RPI) { |
| if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE && |
| ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { |
| lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; |
| ndlp->nlp_flag &= ~NLP_RELEASE_RPI; |
| spin_unlock_irq(&ndlp->lock); |
| } |
| lpfc_drop_node(vport, ndlp); |
| } else if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE && |
| ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE && |
| ndlp->nlp_state != NLP_STE_PRLI_ISSUE) { |
| /* Drop ndlp if there is no planned or outstanding |
| * issued PRLI. |
| * |
| * In cases when the ndlp is acting as both an initiator |
| * and target function, let our issued PRLI determine |
| * the final ndlp kref drop. |
| */ |
| lpfc_drop_node(vport, ndlp); |
| } |
| } |
| |
| /* Release the originating I/O reference. */ |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| /** |
| * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @flag: the els command code to be accepted. |
| * @oldiocb: pointer to the original lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @mbox: pointer to the driver internal queue element for mailbox command. |
| * |
| * This routine prepares and issues an Accept (ACC) response IOCB |
| * command. It uses the @flag to properly set up the IOCB field for the |
| * specific ACC response command to be issued and invokes the |
| * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a |
| * @mbox pointer is passed in, it will be put into the context_un.mbox |
| * field of the IOCB for the completion callback function to issue the |
| * mailbox command to the HBA later when callback is invoked. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the corresponding |
| * response ELS IOCB command. |
| * |
| * Return code |
| * 0 - Successfully issued acc response |
| * 1 - Failed to issue acc response |
| **/ |
| int |
| lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
| struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
| LPFC_MBOXQ_t *mbox) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| IOCB_t *icmd; |
| IOCB_t *oldcmd; |
| union lpfc_wqe128 *wqe; |
| union lpfc_wqe128 *oldwqe = &oldiocb->wqe; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| struct serv_parm *sp; |
| uint16_t cmdsize; |
| int rc; |
| ELS_PKT *els_pkt_ptr; |
| struct fc_els_rdf_resp *rdf_resp; |
| |
| switch (flag) { |
| case ELS_CMD_ACC: |
| cmdsize = sizeof(uint32_t); |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
| ndlp, ndlp->nlp_DID, ELS_CMD_ACC); |
| if (!elsiocb) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
| spin_unlock_irq(&ndlp->lock); |
| return 1; |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* XRI / rx_id */ |
| bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, |
| bf_get(wqe_ctxt_tag, |
| &oldwqe->xmit_els_rsp.wqe_com)); |
| |
| /* oxid */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| bf_get(wqe_rcvoxid, |
| &oldwqe->xmit_els_rsp.wqe_com)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| icmd->unsli3.rcvsli3.ox_id = |
| oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| pcmd = elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| pcmd += sizeof(uint32_t); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue ACC: did:x%x flg:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, 0); |
| break; |
| case ELS_CMD_FLOGI: |
| case ELS_CMD_PLOGI: |
| cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
| ndlp, ndlp->nlp_DID, ELS_CMD_ACC); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* XRI / rx_id */ |
| bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, |
| bf_get(wqe_ctxt_tag, |
| &oldwqe->xmit_els_rsp.wqe_com)); |
| |
| /* oxid */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| bf_get(wqe_rcvoxid, |
| &oldwqe->xmit_els_rsp.wqe_com)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| icmd->unsli3.rcvsli3.ox_id = |
| oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; |
| |
| if (mbox) |
| elsiocb->context_un.mbox = mbox; |
| |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| pcmd += sizeof(uint32_t); |
| sp = (struct serv_parm *)pcmd; |
| |
| if (flag == ELS_CMD_FLOGI) { |
| /* Copy the received service parameters back */ |
| memcpy(sp, &phba->fc_fabparam, |
| sizeof(struct serv_parm)); |
| |
| /* Clear the F_Port bit */ |
| sp->cmn.fPort = 0; |
| |
| /* Mark all class service parameters as invalid */ |
| sp->cls1.classValid = 0; |
| sp->cls2.classValid = 0; |
| sp->cls3.classValid = 0; |
| sp->cls4.classValid = 0; |
| |
| /* Copy our worldwide names */ |
| memcpy(&sp->portName, &vport->fc_sparam.portName, |
| sizeof(struct lpfc_name)); |
| memcpy(&sp->nodeName, &vport->fc_sparam.nodeName, |
| sizeof(struct lpfc_name)); |
| } else { |
| memcpy(pcmd, &vport->fc_sparam, |
| sizeof(struct serv_parm)); |
| |
| sp->cmn.valid_vendor_ver_level = 0; |
| memset(sp->un.vendorVersion, 0, |
| sizeof(sp->un.vendorVersion)); |
| sp->cmn.bbRcvSizeMsb &= 0xF; |
| |
| /* If our firmware supports this feature, convey that |
| * info to the target using the vendor specific field. |
| */ |
| if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) { |
| sp->cmn.valid_vendor_ver_level = 1; |
| sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID); |
| sp->un.vv.flags = |
| cpu_to_be32(LPFC_VV_SUPPRESS_RSP); |
| } |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, 0); |
| break; |
| case ELS_CMD_PRLO: |
| cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
| ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* XRI / rx_id */ |
| bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, |
| bf_get(wqe_ctxt_tag, |
| &oldwqe->xmit_els_rsp.wqe_com)); |
| |
| /* oxid */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| bf_get(wqe_rcvoxid, |
| &oldwqe->xmit_els_rsp.wqe_com)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| icmd->unsli3.rcvsli3.ox_id = |
| oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| pcmd = (u8 *) elsiocb->cmd_dmabuf->virt; |
| |
| memcpy(pcmd, oldiocb->cmd_dmabuf->virt, |
| sizeof(uint32_t) + sizeof(PRLO)); |
| *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
| els_pkt_ptr = (ELS_PKT *) pcmd; |
| els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue ACC PRLO: did:x%x flg:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, 0); |
| break; |
| case ELS_CMD_RDF: |
| cmdsize = sizeof(*rdf_resp); |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
| ndlp, ndlp->nlp_DID, ELS_CMD_ACC); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* XRI / rx_id */ |
| bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, |
| bf_get(wqe_ctxt_tag, |
| &oldwqe->xmit_els_rsp.wqe_com)); |
| |
| /* oxid */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| bf_get(wqe_rcvoxid, |
| &oldwqe->xmit_els_rsp.wqe_com)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| icmd->unsli3.rcvsli3.ox_id = |
| oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; |
| rdf_resp = (struct fc_els_rdf_resp *)pcmd; |
| memset(rdf_resp, 0, sizeof(*rdf_resp)); |
| rdf_resp->acc_hdr.la_cmd = ELS_LS_ACC; |
| |
| /* FC-LS-5 specifies desc_list_len shall be set to 12 */ |
| rdf_resp->desc_list_len = cpu_to_be32(12); |
| |
| /* FC-LS-5 specifies LS REQ Information descriptor */ |
| rdf_resp->lsri.desc_tag = cpu_to_be32(1); |
| rdf_resp->lsri.desc_len = cpu_to_be32(sizeof(u32)); |
| rdf_resp->lsri.rqst_w0.cmd = ELS_RDF; |
| break; |
| default: |
| return 1; |
| } |
| if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
| spin_lock_irq(&ndlp->lock); |
| if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED || |
| ndlp->nlp_flag & NLP_REG_LOGIN_SEND)) |
| ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
| spin_unlock_irq(&ndlp->lock); |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_logo_acc; |
| } else { |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| } |
| |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| /* Xmit ELS ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, " |
| "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x " |
| "RPI: x%x, fc_flag x%lx refcnt %d\n", |
| rc, elsiocb->iotag, elsiocb->sli4_xritag, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref)); |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rsp_reject - Prepare and issue a rjt response iocb command |
| * @vport: pointer to a virtual N_Port data structure. |
| * @rejectError: reject response to issue |
| * @oldiocb: pointer to the original lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @mbox: pointer to the driver internal queue element for mailbox command. |
| * |
| * This routine prepares and issue an Reject (RJT) response IOCB |
| * command. If a @mbox pointer is passed in, it will be put into the |
| * context_un.mbox field of the IOCB for the completion callback function |
| * to issue to the HBA later. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the reject response |
| * ELS IOCB command. |
| * |
| * Return code |
| * 0 - Successfully issued reject response |
| * 1 - Failed to issue reject response |
| **/ |
| int |
| lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
| struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
| LPFC_MBOXQ_t *mbox) |
| { |
| int rc; |
| struct lpfc_hba *phba = vport->phba; |
| IOCB_t *icmd; |
| IOCB_t *oldcmd; |
| union lpfc_wqe128 *wqe; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| |
| cmdsize = 2 * sizeof(uint32_t); |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_LS_RJT); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, |
| get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| get_job_rcvoxid(phba, oldiocb)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; |
| pcmd += sizeof(uint32_t); |
| *((uint32_t *) (pcmd)) = rejectError; |
| |
| if (mbox) |
| elsiocb->context_un.mbox = mbox; |
| |
| /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0129 Xmit ELS RJT x%x response tag x%x " |
| "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " |
| "rpi x%x\n", |
| rejectError, elsiocb->iotag, |
| get_job_ulpcontext(phba, elsiocb), ndlp->nlp_DID, |
| ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue LS_RJT: did:x%x flg:x%x err:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, rejectError); |
| |
| phba->fc_stat.elsXmitLSRJT++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| /* The NPIV instance is rejecting this unsolicited ELS. Make sure the |
| * node's assigned RPI gets released provided this node is not already |
| * registered with the transport. |
| */ |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| vport->port_type == LPFC_NPIV_PORT && |
| !(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_RELEASE_RPI; |
| spin_unlock_irq(&ndlp->lock); |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_issue_els_edc_rsp - Exchange Diagnostic Capabilities with the fabric. |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to the original lpfc command iocb data structure. |
| * @ndlp: NPort to where rsp is directed |
| * |
| * This routine issues an EDC ACC RSP to the F-Port Controller to communicate |
| * this N_Port's support of hardware signals in its Congestion |
| * Capabilities Descriptor. |
| * |
| * Return code |
| * 0 - Successfully issued edc rsp command |
| * 1 - Failed to issue edc rsp command |
| **/ |
| static int |
| lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct fc_els_edc_resp *edc_rsp; |
| struct fc_tlv_desc *tlv; |
| struct lpfc_iocbq *elsiocb; |
| IOCB_t *icmd, *cmd; |
| union lpfc_wqe128 *wqe; |
| u32 cgn_desc_size, lft_desc_size; |
| u16 cmdsize; |
| uint8_t *pcmd; |
| int rc; |
| |
| cmdsize = sizeof(struct fc_els_edc_resp); |
| cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc); |
| lft_desc_size = (lpfc_link_is_lds_capable(phba)) ? |
| sizeof(struct fc_diag_lnkflt_desc) : 0; |
| cmdsize += cgn_desc_size + lft_desc_size; |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry, |
| ndlp, ndlp->nlp_DID, ELS_CMD_ACC); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, |
| get_job_ulpcontext(phba, cmdiocb)); /* Xri / rx_id */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| get_job_rcvoxid(phba, cmdiocb)); |
| } else { |
| icmd = &elsiocb->iocb; |
| cmd = &cmdiocb->iocb; |
| icmd->ulpContext = cmd->ulpContext; /* Xri / rx_id */ |
| icmd->unsli3.rcvsli3.ox_id = cmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| pcmd = elsiocb->cmd_dmabuf->virt; |
| memset(pcmd, 0, cmdsize); |
| |
| edc_rsp = (struct fc_els_edc_resp *)pcmd; |
| edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC; |
| edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) + |
| cgn_desc_size + lft_desc_size); |
| edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO); |
| edc_rsp->lsri.desc_len = cpu_to_be32( |
| FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc)); |
| edc_rsp->lsri.rqst_w0.cmd = ELS_EDC; |
| tlv = edc_rsp->desc; |
| lpfc_format_edc_cgn_desc(phba, tlv); |
| tlv = fc_tlv_next_desc(tlv); |
| if (lft_desc_size) |
| lpfc_format_edc_lft_desc(phba, tlv); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue EDC ACC: did:x%x flg:x%x refcnt %d", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| kref_read(&ndlp->kref)); |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| /* Xmit ELS ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0152 Xmit EDC ACC response Status: x%x, IoTag: x%x, " |
| "XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x " |
| "RPI: x%x, fc_flag x%lx\n", |
| rc, elsiocb->iotag, elsiocb->sli4_xritag, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi, vport->fc_flag); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
| * @vport: pointer to a virtual N_Port data structure. |
| * @oldiocb: pointer to the original lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine prepares and issues an Accept (ACC) response to Address |
| * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB |
| * and invokes the lpfc_sli_issue_iocb() routine to send out the command. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the ADISC Accept response |
| * ELS IOCB command. |
| * |
| * Return code |
| * 0 - Successfully issued acc adisc response |
| * 1 - Failed to issue adisc acc response |
| **/ |
| int |
| lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| ADISC *ap; |
| IOCB_t *icmd, *oldcmd; |
| union lpfc_wqe128 *wqe; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| int rc; |
| u32 ulp_context; |
| |
| cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_ACC); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* XRI / rx_id */ |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, |
| get_job_ulpcontext(phba, oldiocb)); |
| ulp_context = get_job_ulpcontext(phba, elsiocb); |
| /* oxid */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| get_job_rcvoxid(phba, oldiocb)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| ulp_context = elsiocb->iocb.ulpContext; |
| icmd->unsli3.rcvsli3.ox_id = |
| oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| /* Xmit ADISC ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0130 Xmit ADISC ACC response iotag x%x xri: " |
| "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", |
| elsiocb->iotag, ulp_context, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi); |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| pcmd += sizeof(uint32_t); |
| |
| ap = (ADISC *) (pcmd); |
| ap->hardAL_PA = phba->fc_pref_ALPA; |
| memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
| memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); |
| ap->DID = be32_to_cpu(vport->fc_myDID); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue ACC ADISC: did:x%x flg:x%x refcnt %d", |
| ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); |
| |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
| * @vport: pointer to a virtual N_Port data structure. |
| * @oldiocb: pointer to the original lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine prepares and issues an Accept (ACC) response to Process |
| * Login (PRLI) ELS command. It simply prepares the payload of the IOCB |
| * and invokes the lpfc_sli_issue_iocb() routine to send out the command. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the PRLI Accept response |
| * ELS IOCB command. |
| * |
| * Return code |
| * 0 - Successfully issued acc prli response |
| * 1 - Failed to issue acc prli response |
| **/ |
| int |
| lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| PRLI *npr; |
| struct lpfc_nvme_prli *npr_nvme; |
| lpfc_vpd_t *vpd; |
| IOCB_t *icmd; |
| IOCB_t *oldcmd; |
| union lpfc_wqe128 *wqe; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| uint32_t prli_fc4_req, *req_payload; |
| struct lpfc_dmabuf *req_buf; |
| int rc; |
| u32 elsrspcmd, ulp_context; |
| |
| /* Need the incoming PRLI payload to determine if the ACC is for an |
| * FC4 or NVME PRLI type. The PRLI type is at word 1. |
| */ |
| req_buf = oldiocb->cmd_dmabuf; |
| req_payload = (((uint32_t *)req_buf->virt) + 1); |
| |
| /* PRLI type payload is at byte 3 for FCP or NVME. */ |
| prli_fc4_req = be32_to_cpu(*req_payload); |
| prli_fc4_req = (prli_fc4_req >> 24) & 0xff; |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n", |
| prli_fc4_req, *((uint32_t *)req_payload)); |
| |
| if (prli_fc4_req == PRLI_FCP_TYPE) { |
| cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
| elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); |
| } else if (prli_fc4_req == PRLI_NVME_TYPE) { |
| cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli); |
| elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK)); |
| } else { |
| return 1; |
| } |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
| ndlp->nlp_DID, elsrspcmd); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, |
| get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ |
| ulp_context = get_job_ulpcontext(phba, elsiocb); |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| get_job_rcvoxid(phba, oldiocb)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| ulp_context = elsiocb->iocb.ulpContext; |
| icmd->unsli3.rcvsli3.ox_id = |
| oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| /* Xmit PRLI ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0131 Xmit PRLI ACC response tag x%x xri x%x, " |
| "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", |
| elsiocb->iotag, ulp_context, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi); |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| memset(pcmd, 0, cmdsize); |
| |
| *((uint32_t *)(pcmd)) = elsrspcmd; |
| pcmd += sizeof(uint32_t); |
| |
| /* For PRLI, remainder of payload is PRLI parameter page */ |
| vpd = &phba->vpd; |
| |
| if (prli_fc4_req == PRLI_FCP_TYPE) { |
| /* |
| * If the remote port is a target and our firmware version |
| * is 3.20 or later, set the following bits for FC-TAPE |
| * support. |
| */ |
| npr = (PRLI *) pcmd; |
| if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
| (vpd->rev.feaLevelHigh >= 0x02)) { |
| npr->ConfmComplAllowed = 1; |
| npr->Retry = 1; |
| npr->TaskRetryIdReq = 1; |
| } |
| npr->acceptRspCode = PRLI_REQ_EXECUTED; |
| |
| /* Set image pair for complementary pairs only. */ |
| if (ndlp->nlp_type & NLP_FCP_TARGET) |
| npr->estabImagePair = 1; |
| else |
| npr->estabImagePair = 0; |
| npr->readXferRdyDis = 1; |
| npr->ConfmComplAllowed = 1; |
| npr->prliType = PRLI_FCP_TYPE; |
| npr->initiatorFunc = 1; |
| |
| /* Xmit PRLI ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_ELS | LOG_NODE | LOG_DISCOVERY, |
| "6014 FCP issue PRLI ACC imgpair %d " |
| "retry %d task %d\n", |
| npr->estabImagePair, |
| npr->Retry, npr->TaskRetryIdReq); |
| |
| } else if (prli_fc4_req == PRLI_NVME_TYPE) { |
| /* Respond with an NVME PRLI Type */ |
| npr_nvme = (struct lpfc_nvme_prli *) pcmd; |
| bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE); |
| bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */ |
| bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED); |
| if (phba->nvmet_support) { |
| bf_set(prli_tgt, npr_nvme, 1); |
| bf_set(prli_disc, npr_nvme, 1); |
| if (phba->cfg_nvme_enable_fb) { |
| bf_set(prli_fba, npr_nvme, 1); |
| |
| /* TBD. Target mode needs to post buffers |
| * that support the configured first burst |
| * byte size. |
| */ |
| bf_set(prli_fb_sz, npr_nvme, |
| phba->cfg_nvmet_fb_size); |
| } |
| } else { |
| bf_set(prli_init, npr_nvme, 1); |
| } |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, |
| "6015 NVME issue PRLI ACC word1 x%08x " |
| "word4 x%08x word5 x%08x flag x%x, " |
| "fcp_info x%x nlp_type x%x\n", |
| npr_nvme->word1, npr_nvme->word4, |
| npr_nvme->word5, ndlp->nlp_flag, |
| ndlp->nlp_fcp_info, ndlp->nlp_type); |
| npr_nvme->word1 = cpu_to_be32(npr_nvme->word1); |
| npr_nvme->word4 = cpu_to_be32(npr_nvme->word4); |
| npr_nvme->word5 = cpu_to_be32(npr_nvme->word5); |
| } else |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n", |
| prli_fc4_req, ndlp->nlp_fc4_type, |
| ndlp->nlp_DID); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue ACC PRLI: did:x%x flg:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); |
| |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
| * @vport: pointer to a virtual N_Port data structure. |
| * @format: rnid command format. |
| * @oldiocb: pointer to the original lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine issues a Request Node Identification Data (RNID) Accept |
| * (ACC) response. It constructs the RNID ACC response command according to |
| * the proper @format and then calls the lpfc_sli_issue_iocb() routine to |
| * issue the response. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function. |
| * |
| * Return code |
| * 0 - Successfully issued acc rnid response |
| * 1 - Failed to issue acc rnid response |
| **/ |
| static int |
| lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
| struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| RNID *rn; |
| IOCB_t *icmd, *oldcmd; |
| union lpfc_wqe128 *wqe; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| int rc; |
| u32 ulp_context; |
| |
| cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
| + (2 * sizeof(struct lpfc_name)); |
| if (format) |
| cmdsize += sizeof(RNID_TOP_DISC); |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_ACC); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, |
| get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ |
| ulp_context = get_job_ulpcontext(phba, elsiocb); |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| get_job_rcvoxid(phba, oldiocb)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| ulp_context = elsiocb->iocb.ulpContext; |
| icmd->unsli3.rcvsli3.ox_id = |
| oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| /* Xmit RNID ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0132 Xmit RNID ACC response tag x%x xri x%x\n", |
| elsiocb->iotag, ulp_context); |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| pcmd += sizeof(uint32_t); |
| |
| memset(pcmd, 0, sizeof(RNID)); |
| rn = (RNID *) (pcmd); |
| rn->Format = format; |
| rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
| memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
| memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); |
| switch (format) { |
| case 0: |
| rn->SpecificLen = 0; |
| break; |
| case RNID_TOPOLOGY_DISC: |
| rn->SpecificLen = sizeof(RNID_TOP_DISC); |
| memcpy(&rn->un.topologyDisc.portName, |
| &vport->fc_portname, sizeof(struct lpfc_name)); |
| rn->un.topologyDisc.unitType = RNID_HBA; |
| rn->un.topologyDisc.physPort = 0; |
| rn->un.topologyDisc.attachedNodes = 0; |
| break; |
| default: |
| rn->CommonLen = 0; |
| rn->SpecificLen = 0; |
| break; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue ACC RNID: did:x%x flg:x%x refcnt %d", |
| ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); |
| |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_clear_rrq - Clear the rq that this rrq describes. |
| * @vport: pointer to a virtual N_Port data structure. |
| * @iocb: pointer to the lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * Return |
| **/ |
| static void |
| lpfc_els_clear_rrq(struct lpfc_vport *vport, |
| struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| uint8_t *pcmd; |
| struct RRQ *rrq; |
| uint16_t rxid; |
| uint16_t xri; |
| struct lpfc_node_rrq *prrq; |
| |
| |
| pcmd = (uint8_t *)iocb->cmd_dmabuf->virt; |
| pcmd += sizeof(uint32_t); |
| rrq = (struct RRQ *)pcmd; |
| rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg); |
| rxid = bf_get(rrq_rxid, rrq); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x" |
| " x%x x%x\n", |
| be32_to_cpu(bf_get(rrq_did, rrq)), |
| bf_get(rrq_oxid, rrq), |
| rxid, |
| get_wqe_reqtag(iocb), |
| get_job_ulpcontext(phba, iocb)); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Clear RRQ: did:x%x flg:x%x exchg:x%.08x", |
| ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg); |
| if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq))) |
| xri = bf_get(rrq_oxid, rrq); |
| else |
| xri = rxid; |
| prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID); |
| if (prrq) |
| lpfc_clr_rrq_active(phba, xri, prrq); |
| return; |
| } |
| |
| /** |
| * lpfc_els_rsp_echo_acc - Issue echo acc response |
| * @vport: pointer to a virtual N_Port data structure. |
| * @data: pointer to echo data to return in the accept. |
| * @oldiocb: pointer to the original lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * Return code |
| * 0 - Successfully issued acc echo response |
| * 1 - Failed to issue acc echo response |
| **/ |
| static int |
| lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, |
| struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| IOCB_t *icmd, *oldcmd; |
| union lpfc_wqe128 *wqe; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| int rc; |
| u32 ulp_context; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| cmdsize = oldiocb->wcqe_cmpl.total_data_placed; |
| else |
| cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len; |
| |
| /* The accumulated length can exceed the BPL_SIZE. For |
| * now, use this as the limit |
| */ |
| if (cmdsize > LPFC_BPL_SIZE) |
| cmdsize = LPFC_BPL_SIZE; |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_ACC); |
| if (!elsiocb) |
| return 1; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, |
| get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */ |
| ulp_context = get_job_ulpcontext(phba, elsiocb); |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| get_job_rcvoxid(phba, oldiocb)); |
| } else { |
| icmd = &elsiocb->iocb; |
| oldcmd = &oldiocb->iocb; |
| icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */ |
| ulp_context = elsiocb->iocb.ulpContext; |
| icmd->unsli3.rcvsli3.ox_id = |
| oldcmd->unsli3.rcvsli3.ox_id; |
| } |
| |
| /* Xmit ECHO ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "2876 Xmit ECHO ACC response tag x%x xri x%x\n", |
| elsiocb->iotag, ulp_context); |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| pcmd += sizeof(uint32_t); |
| memcpy(pcmd, data, cmdsize - sizeof(uint32_t)); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
| "Issue ACC ECHO: did:x%x flg:x%x refcnt %d", |
| ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref)); |
| |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine issues Address Discover (ADISC) ELS commands to those |
| * N_Ports which are in node port recovery state and ADISC has not been issued |
| * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the |
| * lpfc_issue_els_adisc() routine, the per @vport number of discover count |
| * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a |
| * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will |
| * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC |
| * IOCBs quit for later pick up. On the other hand, after walking through |
| * all the ndlps with the @vport and there is none ADISC IOCB issued, the |
| * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is |
| * no more ADISC need to be sent. |
| * |
| * Return code |
| * The number of N_Ports with adisc issued. |
| **/ |
| int |
| lpfc_els_disc_adisc(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| int sentadisc = 0; |
| |
| /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| |
| if (ndlp->nlp_state != NLP_STE_NPR_NODE || |
| !(ndlp->nlp_flag & NLP_NPR_ADISC)) |
| continue; |
| |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
| spin_unlock_irq(&ndlp->lock); |
| |
| if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { |
| /* This node was marked for ADISC but was not picked |
| * for discovery. This is possible if the node was |
| * missing in gidft response. |
| * |
| * At time of marking node for ADISC, we skipped unreg |
| * from backend |
| */ |
| lpfc_nlp_unreg_node(vport, ndlp); |
| lpfc_unreg_rpi(vport, ndlp); |
| continue; |
| } |
| |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
| lpfc_issue_els_adisc(vport, ndlp, 0); |
| sentadisc++; |
| vport->num_disc_nodes++; |
| if (vport->num_disc_nodes >= |
| vport->cfg_discovery_threads) { |
| set_bit(FC_NLP_MORE, &vport->fc_flag); |
| break; |
| } |
| |
| } |
| if (sentadisc == 0) |
| clear_bit(FC_NLP_MORE, &vport->fc_flag); |
| return sentadisc; |
| } |
| |
| /** |
| * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports |
| * which are in node port recovery state, with a @vport. Each time an ELS |
| * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, |
| * the per @vport number of discover count (num_disc_nodes) shall be |
| * incremented. If the num_disc_nodes reaches a pre-configured threshold |
| * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE |
| * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for |
| * later pick up. On the other hand, after walking through all the ndlps with |
| * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag |
| * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC |
| * PLOGI need to be sent. |
| * |
| * Return code |
| * The number of N_Ports with plogi issued. |
| **/ |
| int |
| lpfc_els_disc_plogi(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| int sentplogi = 0; |
| |
| /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
| (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && |
| (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && |
| (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
| lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
| sentplogi++; |
| vport->num_disc_nodes++; |
| if (vport->num_disc_nodes >= |
| vport->cfg_discovery_threads) { |
| set_bit(FC_NLP_MORE, &vport->fc_flag); |
| break; |
| } |
| } |
| } |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "6452 Discover PLOGI %d flag x%lx\n", |
| sentplogi, vport->fc_flag); |
| |
| if (sentplogi) |
| lpfc_set_disctmo(vport); |
| else |
| clear_bit(FC_NLP_MORE, &vport->fc_flag); |
| return sentplogi; |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc, |
| uint32_t word0) |
| { |
| |
| desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG); |
| desc->payload.els_req = word0; |
| desc->length = cpu_to_be32(sizeof(desc->payload)); |
| |
| return sizeof(struct fc_rdp_link_service_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc, |
| uint8_t *page_a0, uint8_t *page_a2) |
| { |
| uint16_t wavelength; |
| uint16_t temperature; |
| uint16_t rx_power; |
| uint16_t tx_bias; |
| uint16_t tx_power; |
| uint16_t vcc; |
| uint16_t flag = 0; |
| struct sff_trasnceiver_codes_byte4 *trasn_code_byte4; |
| struct sff_trasnceiver_codes_byte5 *trasn_code_byte5; |
| |
| desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG); |
| |
| trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *) |
| &page_a0[SSF_TRANSCEIVER_CODE_B4]; |
| trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *) |
| &page_a0[SSF_TRANSCEIVER_CODE_B5]; |
| |
| if ((trasn_code_byte4->fc_sw_laser) || |
| (trasn_code_byte5->fc_sw_laser_sl) || |
| (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */ |
| flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT); |
| } else if (trasn_code_byte4->fc_lw_laser) { |
| wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) | |
| page_a0[SSF_WAVELENGTH_B0]; |
| if (wavelength == SFP_WAVELENGTH_LC1310) |
| flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT; |
| if (wavelength == SFP_WAVELENGTH_LL1550) |
| flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT; |
| } |
| /* check if its SFP+ */ |
| flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ? |
| SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN) |
| << SFP_FLAG_CT_SHIFT; |
| |
| /* check if its OPTICAL */ |
| flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ? |
| SFP_FLAG_IS_OPTICAL_PORT : 0) |
| << SFP_FLAG_IS_OPTICAL_SHIFT; |
| |
| temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 | |
| page_a2[SFF_TEMPERATURE_B0]); |
| vcc = (page_a2[SFF_VCC_B1] << 8 | |
| page_a2[SFF_VCC_B0]); |
| tx_power = (page_a2[SFF_TXPOWER_B1] << 8 | |
| page_a2[SFF_TXPOWER_B0]); |
| tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | |
| page_a2[SFF_TX_BIAS_CURRENT_B0]); |
| rx_power = (page_a2[SFF_RXPOWER_B1] << 8 | |
| page_a2[SFF_RXPOWER_B0]); |
| desc->sfp_info.temperature = cpu_to_be16(temperature); |
| desc->sfp_info.rx_power = cpu_to_be16(rx_power); |
| desc->sfp_info.tx_bias = cpu_to_be16(tx_bias); |
| desc->sfp_info.tx_power = cpu_to_be16(tx_power); |
| desc->sfp_info.vcc = cpu_to_be16(vcc); |
| |
| desc->sfp_info.flags = cpu_to_be16(flag); |
| desc->length = cpu_to_be32(sizeof(desc->sfp_info)); |
| |
| return sizeof(struct fc_rdp_sfp_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc, |
| READ_LNK_VAR *stat) |
| { |
| uint32_t type; |
| |
| desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG); |
| |
| type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT; |
| |
| desc->info.port_type = cpu_to_be32(type); |
| |
| desc->info.link_status.link_failure_cnt = |
| cpu_to_be32(stat->linkFailureCnt); |
| desc->info.link_status.loss_of_synch_cnt = |
| cpu_to_be32(stat->lossSyncCnt); |
| desc->info.link_status.loss_of_signal_cnt = |
| cpu_to_be32(stat->lossSignalCnt); |
| desc->info.link_status.primitive_seq_proto_err = |
| cpu_to_be32(stat->primSeqErrCnt); |
| desc->info.link_status.invalid_trans_word = |
| cpu_to_be32(stat->invalidXmitWord); |
| desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt); |
| |
| desc->length = cpu_to_be32(sizeof(desc->info)); |
| |
| return sizeof(struct fc_rdp_link_error_status_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat, |
| struct lpfc_vport *vport) |
| { |
| uint32_t bbCredit; |
| |
| desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG); |
| |
| bbCredit = vport->fc_sparam.cmn.bbCreditLsb | |
| (vport->fc_sparam.cmn.bbCreditMsb << 8); |
| desc->bbc_info.port_bbc = cpu_to_be32(bbCredit); |
| if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
| bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb | |
| (vport->phba->fc_fabparam.cmn.bbCreditMsb << 8); |
| desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit); |
| } else { |
| desc->bbc_info.attached_port_bbc = 0; |
| } |
| |
| desc->bbc_info.rtt = 0; |
| desc->length = cpu_to_be32(sizeof(desc->bbc_info)); |
| |
| return sizeof(struct fc_rdp_bbc_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba, |
| struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2) |
| { |
| uint32_t flags = 0; |
| |
| desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); |
| |
| desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM]; |
| desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM]; |
| desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING]; |
| desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING]; |
| |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) |
| flags |= RDP_OET_HIGH_ALARM; |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE) |
| flags |= RDP_OET_LOW_ALARM; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE) |
| flags |= RDP_OET_HIGH_WARNING; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE) |
| flags |= RDP_OET_LOW_WARNING; |
| |
| flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT); |
| desc->oed_info.function_flags = cpu_to_be32(flags); |
| desc->length = cpu_to_be32(sizeof(desc->oed_info)); |
| return sizeof(struct fc_rdp_oed_sfp_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba, |
| struct fc_rdp_oed_sfp_desc *desc, |
| uint8_t *page_a2) |
| { |
| uint32_t flags = 0; |
| |
| desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); |
| |
| desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM]; |
| desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM]; |
| desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING]; |
| desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING]; |
| |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE) |
| flags |= RDP_OET_HIGH_ALARM; |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE) |
| flags |= RDP_OET_LOW_ALARM; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE) |
| flags |= RDP_OET_HIGH_WARNING; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE) |
| flags |= RDP_OET_LOW_WARNING; |
| |
| flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT); |
| desc->oed_info.function_flags = cpu_to_be32(flags); |
| desc->length = cpu_to_be32(sizeof(desc->oed_info)); |
| return sizeof(struct fc_rdp_oed_sfp_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba, |
| struct fc_rdp_oed_sfp_desc *desc, |
| uint8_t *page_a2) |
| { |
| uint32_t flags = 0; |
| |
| desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); |
| |
| desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM]; |
| desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM]; |
| desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING]; |
| desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING]; |
| |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS) |
| flags |= RDP_OET_HIGH_ALARM; |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS) |
| flags |= RDP_OET_LOW_ALARM; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS) |
| flags |= RDP_OET_HIGH_WARNING; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS) |
| flags |= RDP_OET_LOW_WARNING; |
| |
| flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT); |
| desc->oed_info.function_flags = cpu_to_be32(flags); |
| desc->length = cpu_to_be32(sizeof(desc->oed_info)); |
| return sizeof(struct fc_rdp_oed_sfp_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba, |
| struct fc_rdp_oed_sfp_desc *desc, |
| uint8_t *page_a2) |
| { |
| uint32_t flags = 0; |
| |
| desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); |
| |
| desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM]; |
| desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM]; |
| desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING]; |
| desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING]; |
| |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER) |
| flags |= RDP_OET_HIGH_ALARM; |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER) |
| flags |= RDP_OET_LOW_ALARM; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER) |
| flags |= RDP_OET_HIGH_WARNING; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER) |
| flags |= RDP_OET_LOW_WARNING; |
| |
| flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT); |
| desc->oed_info.function_flags = cpu_to_be32(flags); |
| desc->length = cpu_to_be32(sizeof(desc->oed_info)); |
| return sizeof(struct fc_rdp_oed_sfp_desc); |
| } |
| |
| |
| static uint32_t |
| lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba, |
| struct fc_rdp_oed_sfp_desc *desc, |
| uint8_t *page_a2) |
| { |
| uint32_t flags = 0; |
| |
| desc->tag = cpu_to_be32(RDP_OED_DESC_TAG); |
| |
| desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM]; |
| desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM]; |
| desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING]; |
| desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING]; |
| |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER) |
| flags |= RDP_OET_HIGH_ALARM; |
| if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER) |
| flags |= RDP_OET_LOW_ALARM; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER) |
| flags |= RDP_OET_HIGH_WARNING; |
| if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER) |
| flags |= RDP_OET_LOW_WARNING; |
| |
| flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT); |
| desc->oed_info.function_flags = cpu_to_be32(flags); |
| desc->length = cpu_to_be32(sizeof(desc->oed_info)); |
| return sizeof(struct fc_rdp_oed_sfp_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc, |
| uint8_t *page_a0, struct lpfc_vport *vport) |
| { |
| desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG); |
| memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16); |
| memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16); |
| memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16); |
| memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4); |
| memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8); |
| desc->length = cpu_to_be32(sizeof(desc->opd_info)); |
| return sizeof(struct fc_rdp_opd_sfp_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat) |
| { |
| if (bf_get(lpfc_read_link_stat_gec2, stat) == 0) |
| return 0; |
| desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG); |
| |
| desc->info.CorrectedBlocks = |
| cpu_to_be32(stat->fecCorrBlkCount); |
| desc->info.UncorrectableBlocks = |
| cpu_to_be32(stat->fecUncorrBlkCount); |
| |
| desc->length = cpu_to_be32(sizeof(desc->info)); |
| |
| return sizeof(struct fc_fec_rdp_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba) |
| { |
| uint16_t rdp_cap = 0; |
| uint16_t rdp_speed; |
| |
| desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG); |
| |
| switch (phba->fc_linkspeed) { |
| case LPFC_LINK_SPEED_1GHZ: |
| rdp_speed = RDP_PS_1GB; |
| break; |
| case LPFC_LINK_SPEED_2GHZ: |
| rdp_speed = RDP_PS_2GB; |
| break; |
| case LPFC_LINK_SPEED_4GHZ: |
| rdp_speed = RDP_PS_4GB; |
| break; |
| case LPFC_LINK_SPEED_8GHZ: |
| rdp_speed = RDP_PS_8GB; |
| break; |
| case LPFC_LINK_SPEED_10GHZ: |
| rdp_speed = RDP_PS_10GB; |
| break; |
| case LPFC_LINK_SPEED_16GHZ: |
| rdp_speed = RDP_PS_16GB; |
| break; |
| case LPFC_LINK_SPEED_32GHZ: |
| rdp_speed = RDP_PS_32GB; |
| break; |
| case LPFC_LINK_SPEED_64GHZ: |
| rdp_speed = RDP_PS_64GB; |
| break; |
| case LPFC_LINK_SPEED_128GHZ: |
| rdp_speed = RDP_PS_128GB; |
| break; |
| case LPFC_LINK_SPEED_256GHZ: |
| rdp_speed = RDP_PS_256GB; |
| break; |
| default: |
| rdp_speed = RDP_PS_UNKNOWN; |
| break; |
| } |
| |
| desc->info.port_speed.speed = cpu_to_be16(rdp_speed); |
| |
| if (phba->lmt & LMT_256Gb) |
| rdp_cap |= RDP_PS_256GB; |
| if (phba->lmt & LMT_128Gb) |
| rdp_cap |= RDP_PS_128GB; |
| if (phba->lmt & LMT_64Gb) |
| rdp_cap |= RDP_PS_64GB; |
| if (phba->lmt & LMT_32Gb) |
| rdp_cap |= RDP_PS_32GB; |
| if (phba->lmt & LMT_16Gb) |
| rdp_cap |= RDP_PS_16GB; |
| if (phba->lmt & LMT_10Gb) |
| rdp_cap |= RDP_PS_10GB; |
| if (phba->lmt & LMT_8Gb) |
| rdp_cap |= RDP_PS_8GB; |
| if (phba->lmt & LMT_4Gb) |
| rdp_cap |= RDP_PS_4GB; |
| if (phba->lmt & LMT_2Gb) |
| rdp_cap |= RDP_PS_2GB; |
| if (phba->lmt & LMT_1Gb) |
| rdp_cap |= RDP_PS_1GB; |
| |
| if (rdp_cap == 0) |
| rdp_cap = RDP_CAP_UNKNOWN; |
| if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO) |
| rdp_cap |= RDP_CAP_USER_CONFIGURED; |
| |
| desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap); |
| desc->length = cpu_to_be32(sizeof(desc->info)); |
| return sizeof(struct fc_rdp_port_speed_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc, |
| struct lpfc_vport *vport) |
| { |
| |
| desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); |
| |
| memcpy(desc->port_names.wwnn, &vport->fc_nodename, |
| sizeof(desc->port_names.wwnn)); |
| |
| memcpy(desc->port_names.wwpn, &vport->fc_portname, |
| sizeof(desc->port_names.wwpn)); |
| |
| desc->length = cpu_to_be32(sizeof(desc->port_names)); |
| return sizeof(struct fc_rdp_port_name_desc); |
| } |
| |
| static uint32_t |
| lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc, |
| struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| |
| desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); |
| if (test_bit(FC_FABRIC, &vport->fc_flag)) { |
| memcpy(desc->port_names.wwnn, &vport->fabric_nodename, |
| sizeof(desc->port_names.wwnn)); |
| |
| memcpy(desc->port_names.wwpn, &vport->fabric_portname, |
| sizeof(desc->port_names.wwpn)); |
| } else { /* Point to Point */ |
| memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename, |
| sizeof(desc->port_names.wwnn)); |
| |
| memcpy(desc->port_names.wwpn, &ndlp->nlp_portname, |
| sizeof(desc->port_names.wwpn)); |
| } |
| |
| desc->length = cpu_to_be32(sizeof(desc->port_names)); |
| return sizeof(struct fc_rdp_port_name_desc); |
| } |
| |
| static void |
| lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context, |
| int status) |
| { |
| struct lpfc_nodelist *ndlp = rdp_context->ndlp; |
| struct lpfc_vport *vport = ndlp->vport; |
| struct lpfc_iocbq *elsiocb; |
| struct ulp_bde64 *bpl; |
| IOCB_t *icmd; |
| union lpfc_wqe128 *wqe; |
| uint8_t *pcmd; |
| struct ls_rjt *stat; |
| struct fc_rdp_res_frame *rdp_res; |
| uint32_t cmdsize, len; |
| uint16_t *flag_ptr; |
| int rc; |
| u32 ulp_context; |
| |
| if (status != SUCCESS) |
| goto error; |
| |
| /* This will change once we know the true size of the RDP payload */ |
| cmdsize = sizeof(struct fc_rdp_res_frame); |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, |
| lpfc_max_els_tries, rdp_context->ndlp, |
| rdp_context->ndlp->nlp_DID, ELS_CMD_ACC); |
| if (!elsiocb) |
| goto free_rdp_context; |
| |
| ulp_context = get_job_ulpcontext(phba, elsiocb); |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* ox-id of the frame */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| rdp_context->ox_id); |
| bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, |
| rdp_context->rx_id); |
| } else { |
| icmd = &elsiocb->iocb; |
| icmd->ulpContext = rdp_context->rx_id; |
| icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; |
| } |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "2171 Xmit RDP response tag x%x xri x%x, " |
| "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x", |
| elsiocb->iotag, ulp_context, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi); |
| rdp_res = (struct fc_rdp_res_frame *)elsiocb->cmd_dmabuf->virt; |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| memset(pcmd, 0, sizeof(struct fc_rdp_res_frame)); |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| |
| /* Update Alarm and Warning */ |
| flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS); |
| phba->sfp_alarm |= *flag_ptr; |
| flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS); |
| phba->sfp_warning |= *flag_ptr; |
| |
| /* For RDP payload */ |
| len = 8; |
| len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *) |
| (len + pcmd), ELS_CMD_RDP); |
| |
| len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd), |
| rdp_context->page_a0, rdp_context->page_a2); |
| len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd), |
| phba); |
| len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *) |
| (len + pcmd), &rdp_context->link_stat); |
| len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *) |
| (len + pcmd), vport); |
| len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *) |
| (len + pcmd), vport, ndlp); |
| len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd), |
| &rdp_context->link_stat); |
| len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd), |
| &rdp_context->link_stat, vport); |
| len += lpfc_rdp_res_oed_temp_desc(phba, |
| (struct fc_rdp_oed_sfp_desc *)(len + pcmd), |
| rdp_context->page_a2); |
| len += lpfc_rdp_res_oed_voltage_desc(phba, |
| (struct fc_rdp_oed_sfp_desc *)(len + pcmd), |
| rdp_context->page_a2); |
| len += lpfc_rdp_res_oed_txbias_desc(phba, |
| (struct fc_rdp_oed_sfp_desc *)(len + pcmd), |
| rdp_context->page_a2); |
| len += lpfc_rdp_res_oed_txpower_desc(phba, |
| (struct fc_rdp_oed_sfp_desc *)(len + pcmd), |
| rdp_context->page_a2); |
| len += lpfc_rdp_res_oed_rxpower_desc(phba, |
| (struct fc_rdp_oed_sfp_desc *)(len + pcmd), |
| rdp_context->page_a2); |
| len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd), |
| rdp_context->page_a0, vport); |
| |
| rdp_res->length = cpu_to_be32(len - 8); |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| |
| /* Now that we know the true size of the payload, update the BPL */ |
| bpl = (struct ulp_bde64 *)elsiocb->bpl_dmabuf->virt; |
| bpl->tus.f.bdeSize = len; |
| bpl->tus.f.bdeFlags = 0; |
| bpl->tus.w = le32_to_cpu(bpl->tus.w); |
| |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| goto free_rdp_context; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| goto free_rdp_context; |
| |
| error: |
| cmdsize = 2 * sizeof(uint32_t); |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries, |
| ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT); |
| if (!elsiocb) |
| goto free_rdp_context; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* ox-id of the frame */ |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| rdp_context->ox_id); |
| bf_set(wqe_ctxt_tag, |
| &wqe->xmit_els_rsp.wqe_com, |
| rdp_context->rx_id); |
| } else { |
| icmd = &elsiocb->iocb; |
| icmd->ulpContext = rdp_context->rx_id; |
| icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id; |
| } |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; |
| stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); |
| stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
| |
| phba->fc_stat.elsXmitLSRJT++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| goto free_rdp_context; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| free_rdp_context: |
| /* This reference put is for the original unsolicited RDP. If the |
| * prep failed, there is no reference to remove. |
| */ |
| lpfc_nlp_put(ndlp); |
| kfree(rdp_context); |
| } |
| |
| static int |
| lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context) |
| { |
| LPFC_MBOXQ_t *mbox = NULL; |
| int rc; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, |
| "7105 failed to allocate mailbox memory"); |
| return 1; |
| } |
| |
| if (lpfc_sli4_dump_page_a0(phba, mbox)) |
| goto rdp_fail; |
| mbox->vport = rdp_context->ndlp->vport; |
| mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0; |
| mbox->ctx_u.rdp = rdp_context; |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); |
| return 1; |
| } |
| |
| return 0; |
| |
| rdp_fail: |
| mempool_free(mbox, phba->mbox_mem_pool); |
| return 1; |
| } |
| |
| int lpfc_get_sfp_info_wait(struct lpfc_hba *phba, |
| struct lpfc_rdp_context *rdp_context) |
| { |
| LPFC_MBOXQ_t *mbox = NULL; |
| int rc; |
| struct lpfc_dmabuf *mp; |
| struct lpfc_dmabuf *mpsave; |
| void *virt; |
| MAILBOX_t *mb; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS, |
| "7205 failed to allocate mailbox memory"); |
| return 1; |
| } |
| |
| if (lpfc_sli4_dump_page_a0(phba, mbox)) |
| goto sfp_fail; |
| mp = mbox->ctx_buf; |
| mpsave = mp; |
| virt = mp->virt; |
| if (phba->sli_rev < LPFC_SLI_REV4) { |
| mb = &mbox->u.mb; |
| mb->un.varDmp.cv = 1; |
| mb->un.varDmp.co = 1; |
| mb->un.varWords[2] = 0; |
| mb->un.varWords[3] = DMP_SFF_PAGE_A0_SIZE / 4; |
| mb->un.varWords[4] = 0; |
| mb->un.varWords[5] = 0; |
| mb->un.varWords[6] = 0; |
| mb->un.varWords[7] = 0; |
| mb->un.varWords[8] = 0; |
| mb->un.varWords[9] = 0; |
| mb->un.varWords[10] = 0; |
| mbox->in_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; |
| mbox->out_ext_byte_len = DMP_SFF_PAGE_A0_SIZE; |
| mbox->mbox_offset_word = 5; |
| mbox->ext_buf = virt; |
| } else { |
| bf_set(lpfc_mbx_memory_dump_type3_length, |
| &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE); |
| mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); |
| mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); |
| } |
| mbox->vport = phba->pport; |
| rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_SLI4_CONFIG_TMO); |
| if (rc == MBX_NOT_FINISHED) { |
| rc = 1; |
| goto error; |
| } |
| if (rc == MBX_TIMEOUT) |
| goto error; |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| mp = mbox->ctx_buf; |
| else |
| mp = mpsave; |
| |
| if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { |
| rc = 1; |
| goto error; |
| } |
| |
| lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0, |
| DMP_SFF_PAGE_A0_SIZE); |
| |
| memset(mbox, 0, sizeof(*mbox)); |
| memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE); |
| INIT_LIST_HEAD(&mp->list); |
| |
| /* save address for completion */ |
| mbox->ctx_buf = mp; |
| mbox->vport = phba->pport; |
| |
| bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY); |
| bf_set(lpfc_mbx_memory_dump_type3_type, |
| &mbox->u.mqe.un.mem_dump_type3, DMP_LMSD); |
| bf_set(lpfc_mbx_memory_dump_type3_link, |
| &mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port); |
| bf_set(lpfc_mbx_memory_dump_type3_page_no, |
| &mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2); |
| if (phba->sli_rev < LPFC_SLI_REV4) { |
| mb = &mbox->u.mb; |
| mb->un.varDmp.cv = 1; |
| mb->un.varDmp.co = 1; |
| mb->un.varWords[2] = 0; |
| mb->un.varWords[3] = DMP_SFF_PAGE_A2_SIZE / 4; |
| mb->un.varWords[4] = 0; |
| mb->un.varWords[5] = 0; |
| mb->un.varWords[6] = 0; |
| mb->un.varWords[7] = 0; |
| mb->un.varWords[8] = 0; |
| mb->un.varWords[9] = 0; |
| mb->un.varWords[10] = 0; |
| mbox->in_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; |
| mbox->out_ext_byte_len = DMP_SFF_PAGE_A2_SIZE; |
| mbox->mbox_offset_word = 5; |
| mbox->ext_buf = virt; |
| } else { |
| bf_set(lpfc_mbx_memory_dump_type3_length, |
| &mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE); |
| mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys); |
| mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys); |
| } |
| |
| rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_SLI4_CONFIG_TMO); |
| |
| if (rc == MBX_TIMEOUT) |
| goto error; |
| if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) { |
| rc = 1; |
| goto error; |
| } |
| rc = 0; |
| |
| lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2, |
| DMP_SFF_PAGE_A2_SIZE); |
| |
| error: |
| if (mbox->mbox_flag & LPFC_MBX_WAKE) { |
| mbox->ctx_buf = mpsave; |
| lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED); |
| } |
| |
| return rc; |
| |
| sfp_fail: |
| mempool_free(mbox, phba->mbox_mem_pool); |
| return 1; |
| } |
| |
| /* |
| * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS. |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes an unsolicited RDP(Read Diagnostic Parameters) |
| * IOCB. First, the payload of the unsolicited RDP is checked. |
| * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3 |
| * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2, |
| * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl |
| * gather all data and send RDP response. |
| * |
| * Return code |
| * 0 - Sent the acc response |
| * 1 - Sent the reject response. |
| */ |
| static int |
| lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_dmabuf *pcmd; |
| uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE; |
| struct fc_rdp_req_frame *rdp_req; |
| struct lpfc_rdp_context *rdp_context; |
| union lpfc_wqe128 *cmd = NULL; |
| struct ls_rjt stat; |
| |
| if (phba->sli_rev < LPFC_SLI_REV4 || |
| bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < |
| LPFC_SLI_INTF_IF_TYPE_2) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_expl = LSEXP_REQ_UNSUPPORTED; |
| goto error; |
| } |
| |
| if (phba->sli_rev < LPFC_SLI_REV4 || |
| test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_expl = LSEXP_REQ_UNSUPPORTED; |
| goto error; |
| } |
| |
| pcmd = cmdiocb->cmd_dmabuf; |
| rdp_req = (struct fc_rdp_req_frame *) pcmd->virt; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "2422 ELS RDP Request " |
| "dec len %d tag x%x port_id %d len %d\n", |
| be32_to_cpu(rdp_req->rdp_des_length), |
| be32_to_cpu(rdp_req->nport_id_desc.tag), |
| be32_to_cpu(rdp_req->nport_id_desc.nport_id), |
| be32_to_cpu(rdp_req->nport_id_desc.length)); |
| |
| if (sizeof(struct fc_rdp_nport_desc) != |
| be32_to_cpu(rdp_req->rdp_des_length)) |
| goto rjt_logerr; |
| if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag)) |
| goto rjt_logerr; |
| if (RDP_NPORT_ID_SIZE != |
| be32_to_cpu(rdp_req->nport_id_desc.length)) |
| goto rjt_logerr; |
| rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL); |
| if (!rdp_context) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| goto error; |
| } |
| |
| cmd = &cmdiocb->wqe; |
| rdp_context->ndlp = lpfc_nlp_get(ndlp); |
| if (!rdp_context->ndlp) { |
| kfree(rdp_context); |
| rjt_err = LSRJT_UNABLE_TPC; |
| goto error; |
| } |
| rdp_context->ox_id = bf_get(wqe_rcvoxid, |
| &cmd->xmit_els_rsp.wqe_com); |
| rdp_context->rx_id = bf_get(wqe_ctxt_tag, |
| &cmd->xmit_els_rsp.wqe_com); |
| rdp_context->cmpl = lpfc_els_rdp_cmpl; |
| if (lpfc_get_rdp_info(phba, rdp_context)) { |
| lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS, |
| "2423 Unable to send mailbox"); |
| kfree(rdp_context); |
| rjt_err = LSRJT_UNABLE_TPC; |
| lpfc_nlp_put(ndlp); |
| goto error; |
| } |
| |
| return 0; |
| |
| rjt_logerr: |
| rjt_err = LSRJT_LOGICAL_ERR; |
| |
| error: |
| memset(&stat, 0, sizeof(stat)); |
| stat.un.b.lsRjtRsnCode = rjt_err; |
| stat.un.b.lsRjtRsnCodeExp = rjt_expl; |
| lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
| return 1; |
| } |
| |
| |
| static void |
| lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb; |
| IOCB_t *icmd; |
| union lpfc_wqe128 *wqe; |
| uint8_t *pcmd; |
| struct lpfc_iocbq *elsiocb; |
| struct lpfc_nodelist *ndlp; |
| struct ls_rjt *stat; |
| union lpfc_sli4_cfg_shdr *shdr; |
| struct lpfc_lcb_context *lcb_context; |
| struct fc_lcb_res_frame *lcb_res; |
| uint32_t cmdsize, shdr_status, shdr_add_status; |
| int rc; |
| |
| mb = &pmb->u.mb; |
| lcb_context = pmb->ctx_u.lcb; |
| ndlp = lcb_context->ndlp; |
| memset(&pmb->ctx_u, 0, sizeof(pmb->ctx_u)); |
| pmb->ctx_buf = NULL; |
| |
| shdr = (union lpfc_sli4_cfg_shdr *) |
| &pmb->u.mqe.un.beacon_config.header.cfg_shdr; |
| shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
| shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_MBOX, |
| "0194 SET_BEACON_CONFIG mailbox " |
| "completed with status x%x add_status x%x," |
| " mbx status x%x\n", |
| shdr_status, shdr_add_status, mb->mbxStatus); |
| |
| if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status || |
| (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) || |
| (shdr_add_status == ADD_STATUS_INVALID_REQUEST)) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| goto error; |
| } |
| |
| mempool_free(pmb, phba->mbox_mem_pool); |
| cmdsize = sizeof(struct fc_lcb_res_frame); |
| elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
| lpfc_max_els_tries, ndlp, |
| ndlp->nlp_DID, ELS_CMD_ACC); |
| |
| /* Decrement the ndlp reference count from previous mbox command */ |
| lpfc_nlp_put(ndlp); |
| |
| if (!elsiocb) |
| goto free_lcb_context; |
| |
| lcb_res = (struct fc_lcb_res_frame *)elsiocb->cmd_dmabuf->virt; |
| |
| memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame)); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| lcb_context->ox_id); |
| } else { |
| icmd = &elsiocb->iocb; |
| icmd->ulpContext = lcb_context->rx_id; |
| icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; |
| } |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *)(pcmd)) = ELS_CMD_ACC; |
| lcb_res->lcb_sub_command = lcb_context->sub_command; |
| lcb_res->lcb_type = lcb_context->type; |
| lcb_res->capability = lcb_context->capability; |
| lcb_res->lcb_frequency = lcb_context->frequency; |
| lcb_res->lcb_duration = lcb_context->duration; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| phba->fc_stat.elsXmitACC++; |
| |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| goto out; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| out: |
| kfree(lcb_context); |
| return; |
| |
| error: |
| cmdsize = sizeof(struct fc_lcb_res_frame); |
| elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
| lpfc_max_els_tries, ndlp, |
| ndlp->nlp_DID, ELS_CMD_LS_RJT); |
| lpfc_nlp_put(ndlp); |
| if (!elsiocb) |
| goto free_lcb_context; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id); |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| lcb_context->ox_id); |
| } else { |
| icmd = &elsiocb->iocb; |
| icmd->ulpContext = lcb_context->rx_id; |
| icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id; |
| } |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT; |
| stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t)); |
| stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
| |
| if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) |
| stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; |
| |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| phba->fc_stat.elsXmitLSRJT++; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| goto free_lcb_context; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| free_lcb_context: |
| kfree(lcb_context); |
| } |
| |
| static int |
| lpfc_sli4_set_beacon(struct lpfc_vport *vport, |
| struct lpfc_lcb_context *lcb_context, |
| uint32_t beacon_state) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| union lpfc_sli4_cfg_shdr *cfg_shdr; |
| LPFC_MBOXQ_t *mbox = NULL; |
| uint32_t len; |
| int rc; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) |
| return 1; |
| |
| cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr; |
| len = sizeof(struct lpfc_mbx_set_beacon_config) - |
| sizeof(struct lpfc_sli4_cfg_mhdr); |
| lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, |
| LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len, |
| LPFC_SLI4_MBX_EMBED); |
| mbox->ctx_u.lcb = lcb_context; |
| mbox->vport = phba->pport; |
| mbox->mbox_cmpl = lpfc_els_lcb_rsp; |
| bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config, |
| phba->sli4_hba.physical_port); |
| bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config, |
| beacon_state); |
| mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */ |
| |
| /* |
| * Check bv1s bit before issuing the mailbox |
| * if bv1s == 1, LCB V1 supported |
| * else, LCB V0 supported |
| */ |
| |
| if (phba->sli4_hba.pc_sli4_params.bv1s) { |
| /* COMMON_SET_BEACON_CONFIG_V1 */ |
| cfg_shdr->request.word9 = BEACON_VERSION_V1; |
| lcb_context->capability |= LCB_CAPABILITY_DURATION; |
| bf_set(lpfc_mbx_set_beacon_port_type, |
| &mbox->u.mqe.un.beacon_config, 0); |
| bf_set(lpfc_mbx_set_beacon_duration_v1, |
| &mbox->u.mqe.un.beacon_config, |
| be16_to_cpu(lcb_context->duration)); |
| } else { |
| /* COMMON_SET_BEACON_CONFIG_V0 */ |
| if (be16_to_cpu(lcb_context->duration) != 0) { |
| mempool_free(mbox, phba->mbox_mem_pool); |
| return 1; |
| } |
| cfg_shdr->request.word9 = BEACON_VERSION_V0; |
| lcb_context->capability &= ~(LCB_CAPABILITY_DURATION); |
| bf_set(lpfc_mbx_set_beacon_state, |
| &mbox->u.mqe.un.beacon_config, beacon_state); |
| bf_set(lpfc_mbx_set_beacon_port_type, |
| &mbox->u.mqe.un.beacon_config, 1); |
| bf_set(lpfc_mbx_set_beacon_duration, |
| &mbox->u.mqe.un.beacon_config, |
| be16_to_cpu(lcb_context->duration)); |
| } |
| |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| mempool_free(mbox, phba->mbox_mem_pool); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| |
| /** |
| * lpfc_els_rcv_lcb - Process an unsolicited LCB |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB. |
| * First, the payload of the unsolicited LCB is checked. |
| * Then based on Subcommand beacon will either turn on or off. |
| * |
| * Return code |
| * 0 - Sent the acc response |
| * 1 - Sent the reject response. |
| **/ |
| static int |
| lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_dmabuf *pcmd; |
| uint8_t *lp; |
| struct fc_lcb_request_frame *beacon; |
| struct lpfc_lcb_context *lcb_context; |
| u8 state, rjt_err = 0; |
| struct ls_rjt stat; |
| |
| pcmd = cmdiocb->cmd_dmabuf; |
| lp = (uint8_t *)pcmd->virt; |
| beacon = (struct fc_lcb_request_frame *)pcmd->virt; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0192 ELS LCB Data x%x x%x x%x x%x sub x%x " |
| "type x%x frequency %x duration x%x\n", |
| lp[0], lp[1], lp[2], |
| beacon->lcb_command, |
| beacon->lcb_sub_command, |
| beacon->lcb_type, |
| beacon->lcb_frequency, |
| be16_to_cpu(beacon->lcb_duration)); |
| |
| if (beacon->lcb_sub_command != LPFC_LCB_ON && |
| beacon->lcb_sub_command != LPFC_LCB_OFF) { |
| rjt_err = LSRJT_CMD_UNSUPPORTED; |
| goto rjt; |
| } |
| |
| if (phba->sli_rev < LPFC_SLI_REV4 || |
| test_bit(HBA_FCOE_MODE, &phba->hba_flag) || |
| (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < |
| LPFC_SLI_INTF_IF_TYPE_2)) { |
| rjt_err = LSRJT_CMD_UNSUPPORTED; |
| goto rjt; |
| } |
| |
| lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL); |
| if (!lcb_context) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| goto rjt; |
| } |
| |
| state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0; |
| lcb_context->sub_command = beacon->lcb_sub_command; |
| lcb_context->capability = 0; |
| lcb_context->type = beacon->lcb_type; |
| lcb_context->frequency = beacon->lcb_frequency; |
| lcb_context->duration = beacon->lcb_duration; |
| lcb_context->ox_id = get_job_rcvoxid(phba, cmdiocb); |
| lcb_context->rx_id = get_job_ulpcontext(phba, cmdiocb); |
| lcb_context->ndlp = lpfc_nlp_get(ndlp); |
| if (!lcb_context->ndlp) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| goto rjt_free; |
| } |
| |
| if (lpfc_sli4_set_beacon(vport, lcb_context, state)) { |
| lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0193 failed to send mail box"); |
| lpfc_nlp_put(ndlp); |
| rjt_err = LSRJT_UNABLE_TPC; |
| goto rjt_free; |
| } |
| return 0; |
| |
| rjt_free: |
| kfree(lcb_context); |
| rjt: |
| memset(&stat, 0, sizeof(stat)); |
| stat.un.b.lsRjtRsnCode = rjt_err; |
| lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
| return 1; |
| } |
| |
| |
| /** |
| * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine cleans up any Registration State Change Notification |
| * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the |
| * @vport together with the host_lock is used to prevent multiple thread |
| * trying to access the RSCN array on a same @vport at the same time. |
| **/ |
| void |
| lpfc_els_flush_rscn(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| int i; |
| |
| spin_lock_irq(shost->host_lock); |
| if (vport->fc_rscn_flush) { |
| /* Another thread is walking fc_rscn_id_list on this vport */ |
| spin_unlock_irq(shost->host_lock); |
| return; |
| } |
| /* Indicate we are walking lpfc_els_flush_rscn on this vport */ |
| vport->fc_rscn_flush = 1; |
| spin_unlock_irq(shost->host_lock); |
| |
| for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
| lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
| vport->fc_rscn_id_list[i] = NULL; |
| } |
| clear_bit(FC_RSCN_MODE, &vport->fc_flag); |
| clear_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); |
| spin_lock_irq(shost->host_lock); |
| vport->fc_rscn_id_cnt = 0; |
| spin_unlock_irq(shost->host_lock); |
| lpfc_can_disctmo(vport); |
| /* Indicate we are done walking this fc_rscn_id_list */ |
| vport->fc_rscn_flush = 0; |
| } |
| |
| /** |
| * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @did: remote destination port identifier. |
| * |
| * This routine checks whether there is any pending Registration State |
| * Configuration Notification (RSCN) to a @did on @vport. |
| * |
| * Return code |
| * None zero - The @did matched with a pending rscn |
| * 0 - not able to match @did with a pending rscn |
| **/ |
| int |
| lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
| { |
| D_ID ns_did; |
| D_ID rscn_did; |
| uint32_t *lp; |
| uint32_t payload_len, i; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| ns_did.un.word = did; |
| |
| /* Never match fabric nodes for RSCNs */ |
| if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
| return 0; |
| |
| /* If we are doing a FULL RSCN rediscovery, match everything */ |
| if (test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) |
| return did; |
| |
| spin_lock_irq(shost->host_lock); |
| if (vport->fc_rscn_flush) { |
| /* Another thread is walking fc_rscn_id_list on this vport */ |
| spin_unlock_irq(shost->host_lock); |
| return 0; |
| } |
| /* Indicate we are walking fc_rscn_id_list on this vport */ |
| vport->fc_rscn_flush = 1; |
| spin_unlock_irq(shost->host_lock); |
| for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
| lp = vport->fc_rscn_id_list[i]->virt; |
| payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
| payload_len -= sizeof(uint32_t); /* take off word 0 */ |
| while (payload_len) { |
| rscn_did.un.word = be32_to_cpu(*lp++); |
| payload_len -= sizeof(uint32_t); |
| switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
| case RSCN_ADDRESS_FORMAT_PORT: |
| if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
| && (ns_did.un.b.area == rscn_did.un.b.area) |
| && (ns_did.un.b.id == rscn_did.un.b.id)) |
| goto return_did_out; |
| break; |
| case RSCN_ADDRESS_FORMAT_AREA: |
| if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
| && (ns_did.un.b.area == rscn_did.un.b.area)) |
| goto return_did_out; |
| break; |
| case RSCN_ADDRESS_FORMAT_DOMAIN: |
| if (ns_did.un.b.domain == rscn_did.un.b.domain) |
| goto return_did_out; |
| break; |
| case RSCN_ADDRESS_FORMAT_FABRIC: |
| goto return_did_out; |
| } |
| } |
| } |
| /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
| vport->fc_rscn_flush = 0; |
| return 0; |
| return_did_out: |
| /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
| vport->fc_rscn_flush = 0; |
| return did; |
| } |
| |
| /** |
| * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the |
| * state machine for a @vport's nodes that are with pending RSCN (Registration |
| * State Change Notification). |
| * |
| * Return code |
| * 0 - Successful (currently alway return 0) |
| **/ |
| static int |
| lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp = NULL, *n; |
| |
| /* Move all affected nodes by pending RSCNs to NPR state. */ |
| list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) { |
| if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
| !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) |
| continue; |
| |
| /* NVME Target mode does not do RSCN Recovery. */ |
| if (vport->phba->nvmet_support) |
| continue; |
| |
| /* If we are in the process of doing discovery on this |
| * NPort, let it continue on its own. |
| */ |
| switch (ndlp->nlp_state) { |
| case NLP_STE_PLOGI_ISSUE: |
| case NLP_STE_ADISC_ISSUE: |
| case NLP_STE_REG_LOGIN_ISSUE: |
| case NLP_STE_PRLI_ISSUE: |
| case NLP_STE_LOGO_ISSUE: |
| continue; |
| } |
| |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RECOVERY); |
| lpfc_cancel_retry_delay_tmo(vport, ndlp); |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_send_rscn_event - Send an RSCN event to management application |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * |
| * lpfc_send_rscn_event sends an RSCN netlink event to management |
| * applications. |
| */ |
| static void |
| lpfc_send_rscn_event(struct lpfc_vport *vport, |
| struct lpfc_iocbq *cmdiocb) |
| { |
| struct lpfc_dmabuf *pcmd; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| uint32_t *payload_ptr; |
| uint32_t payload_len; |
| struct lpfc_rscn_event_header *rscn_event_data; |
| |
| pcmd = cmdiocb->cmd_dmabuf; |
| payload_ptr = (uint32_t *) pcmd->virt; |
| payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); |
| |
| rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + |
| payload_len, GFP_KERNEL); |
| if (!rscn_event_data) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0147 Failed to allocate memory for RSCN event\n"); |
| return; |
| } |
| rscn_event_data->event_type = FC_REG_RSCN_EVENT; |
| rscn_event_data->payload_length = payload_len; |
| memcpy(rscn_event_data->rscn_payload, payload_ptr, |
| payload_len); |
| |
| fc_host_post_vendor_event(shost, |
| fc_get_event_number(), |
| sizeof(struct lpfc_rscn_event_header) + payload_len, |
| (char *)rscn_event_data, |
| LPFC_NL_VENDOR_ID); |
| |
| kfree(rscn_event_data); |
| } |
| |
| /** |
| * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes an unsolicited RSCN (Registration State Change |
| * Notification) IOCB. First, the payload of the unsolicited RSCN is walked |
| * to invoke fc_host_post_event() routine to the FC transport layer. If the |
| * discover state machine is about to begin discovery, it just accepts the |
| * RSCN and the discovery process will satisfy the RSCN. If this RSCN only |
| * contains N_Port IDs for other vports on this HBA, it just accepts the |
| * RSCN and ignore processing it. If the state machine is in the recovery |
| * state, the fc_rscn_id_list of this @vport is walked and the |
| * lpfc_rscn_recovery_check() routine is invoked to send recovery event for |
| * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() |
| * routine is invoked to handle the RSCN event. |
| * |
| * Return code |
| * 0 - Just sent the acc response |
| * 1 - Sent the acc response and waited for name server completion |
| **/ |
| static int |
| lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_dmabuf *pcmd; |
| uint32_t *lp, *datap; |
| uint32_t payload_len, length, nportid, *cmd; |
| int rscn_cnt; |
| int rscn_id = 0, hba_id = 0; |
| int i, tmo; |
| |
| pcmd = cmdiocb->cmd_dmabuf; |
| lp = (uint32_t *) pcmd->virt; |
| |
| payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
| payload_len -= sizeof(uint32_t); /* take off word 0 */ |
| /* RSCN received */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0214 RSCN received Data: x%lx x%x x%x x%x\n", |
| vport->fc_flag, payload_len, *lp, |
| vport->fc_rscn_id_cnt); |
| |
| /* Send an RSCN event to the management application */ |
| lpfc_send_rscn_event(vport, cmdiocb); |
| |
| for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
| fc_host_post_event(shost, fc_get_event_number(), |
| FCH_EVT_RSCN, lp[i]); |
| |
| /* Check if RSCN is coming from a direct-connected remote NPort */ |
| if (test_bit(FC_PT2PT, &vport->fc_flag)) { |
| /* If so, just ACC it, no other action needed for now */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "2024 pt2pt RSCN %08x Data: x%lx x%x\n", |
| *lp, vport->fc_flag, payload_len); |
| lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
| |
| /* Check to see if we need to NVME rescan this target |
| * remoteport. |
| */ |
| if (ndlp->nlp_fc4_type & NLP_FC4_NVME && |
| ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) |
| lpfc_nvme_rescan_port(vport, ndlp); |
| return 0; |
| } |
| |
| /* If we are about to begin discovery, just ACC the RSCN. |
| * Discovery processing will satisfy it. |
| */ |
| if (vport->port_state <= LPFC_NS_QRY) { |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", |
| ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); |
| |
| lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
| return 0; |
| } |
| |
| /* If this RSCN just contains NPortIDs for other vports on this HBA, |
| * just ACC and ignore it. |
| */ |
| if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
| !(vport->cfg_peer_port_login)) { |
| i = payload_len; |
| datap = lp; |
| while (i > 0) { |
| nportid = *datap++; |
| nportid = ((be32_to_cpu(nportid)) & Mask_DID); |
| i -= sizeof(uint32_t); |
| rscn_id++; |
| if (lpfc_find_vport_by_did(phba, nportid)) |
| hba_id++; |
| } |
| if (rscn_id == hba_id) { |
| /* ALL NPortIDs in RSCN are on HBA */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0219 Ignore RSCN " |
| "Data: x%lx x%x x%x x%x\n", |
| vport->fc_flag, payload_len, |
| *lp, vport->fc_rscn_id_cnt); |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", |
| ndlp->nlp_DID, vport->port_state, |
| ndlp->nlp_flag); |
| |
| lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
| ndlp, NULL); |
| /* Restart disctmo if its already running */ |
| if (test_bit(FC_DISC_TMO, &vport->fc_flag)) { |
| tmo = ((phba->fc_ratov * 3) + 3); |
| mod_timer(&vport->fc_disctmo, |
| jiffies + |
| msecs_to_jiffies(1000 * tmo)); |
| } |
| return 0; |
| } |
| } |
| |
| spin_lock_irq(shost->host_lock); |
| if (vport->fc_rscn_flush) { |
| /* Another thread is walking fc_rscn_id_list on this vport */ |
| spin_unlock_irq(shost->host_lock); |
| set_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); |
| /* Send back ACC */ |
| lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
| return 0; |
| } |
| /* Indicate we are walking fc_rscn_id_list on this vport */ |
| vport->fc_rscn_flush = 1; |
| spin_unlock_irq(shost->host_lock); |
| /* Get the array count after successfully have the token */ |
| rscn_cnt = vport->fc_rscn_id_cnt; |
| /* If we are already processing an RSCN, save the received |
| * RSCN payload buffer, cmdiocb->cmd_dmabuf to process later. |
| */ |
| if (test_bit(FC_RSCN_MODE, &vport->fc_flag) || |
| test_bit(FC_NDISC_ACTIVE, &vport->fc_flag)) { |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", |
| ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); |
| |
| set_bit(FC_RSCN_DEFERRED, &vport->fc_flag); |
| |
| /* Restart disctmo if its already running */ |
| if (test_bit(FC_DISC_TMO, &vport->fc_flag)) { |
| tmo = ((phba->fc_ratov * 3) + 3); |
| mod_timer(&vport->fc_disctmo, |
| jiffies + msecs_to_jiffies(1000 * tmo)); |
| } |
| if ((rscn_cnt < FC_MAX_HOLD_RSCN) && |
| !test_bit(FC_RSCN_DISCOVERY, &vport->fc_flag)) { |
| set_bit(FC_RSCN_MODE, &vport->fc_flag); |
| if (rscn_cnt) { |
| cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; |
| length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); |
| } |
| if ((rscn_cnt) && |
| (payload_len + length <= LPFC_BPL_SIZE)) { |
| *cmd &= ELS_CMD_MASK; |
| *cmd |= cpu_to_be32(payload_len + length); |
| memcpy(((uint8_t *)cmd) + length, lp, |
| payload_len); |
| } else { |
| vport->fc_rscn_id_list[rscn_cnt] = pcmd; |
| vport->fc_rscn_id_cnt++; |
| /* If we zero, cmdiocb->cmd_dmabuf, the calling |
| * routine will not try to free it. |
| */ |
| cmdiocb->cmd_dmabuf = NULL; |
| } |
| /* Deferred RSCN */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0235 Deferred RSCN " |
| "Data: x%x x%lx x%x\n", |
| vport->fc_rscn_id_cnt, vport->fc_flag, |
| vport->port_state); |
| } else { |
| set_bit(FC_RSCN_DISCOVERY, &vport->fc_flag); |
| /* ReDiscovery RSCN */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0234 ReDiscovery RSCN " |
| "Data: x%x x%lx x%x\n", |
| vport->fc_rscn_id_cnt, vport->fc_flag, |
| vport->port_state); |
| } |
| /* Indicate we are done walking fc_rscn_id_list on this vport */ |
| vport->fc_rscn_flush = 0; |
| /* Send back ACC */ |
| lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
| /* send RECOVERY event for ALL nodes that match RSCN payload */ |
| lpfc_rscn_recovery_check(vport); |
| return 0; |
| } |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RSCN: did:x%x/ste:x%x flg:x%x", |
| ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); |
| |
| set_bit(FC_RSCN_MODE, &vport->fc_flag); |
| vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; |
| /* Indicate we are done walking fc_rscn_id_list on this vport */ |
| vport->fc_rscn_flush = 0; |
| /* |
| * If we zero, cmdiocb->cmd_dmabuf, the calling routine will |
| * not try to free it. |
| */ |
| cmdiocb->cmd_dmabuf = NULL; |
| lpfc_set_disctmo(vport); |
| /* Send back ACC */ |
| lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
| /* send RECOVERY event for ALL nodes that match RSCN payload */ |
| lpfc_rscn_recovery_check(vport); |
| return lpfc_els_handle_rscn(vport); |
| } |
| |
| /** |
| * lpfc_els_handle_rscn - Handle rscn for a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine handles the Registration State Configuration Notification |
| * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall |
| * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, |
| * if the ndlp to NameServer exists, a Common Transport (CT) command to the |
| * NameServer shall be issued. If CT command to the NameServer fails to be |
| * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any |
| * RSCN activities with the @vport. |
| * |
| * Return code |
| * 0 - Cleaned up rscn on the @vport |
| * 1 - Wait for plogi to name server before proceed |
| **/ |
| int |
| lpfc_els_handle_rscn(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp; |
| struct lpfc_hba *phba = vport->phba; |
| |
| /* Ignore RSCN if the port is being torn down. */ |
| if (test_bit(FC_UNLOADING, &vport->load_flag)) { |
| lpfc_els_flush_rscn(vport); |
| return 0; |
| } |
| |
| /* Start timer for RSCN processing */ |
| lpfc_set_disctmo(vport); |
| |
| /* RSCN processed */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0215 RSCN processed Data: x%lx x%x x%x x%x x%x x%x\n", |
| vport->fc_flag, 0, vport->fc_rscn_id_cnt, |
| vport->port_state, vport->num_disc_nodes, |
| vport->gidft_inp); |
| |
| /* To process RSCN, first compare RSCN data with NameServer */ |
| vport->fc_ns_retry = 0; |
| vport->num_disc_nodes = 0; |
| |
| ndlp = lpfc_findnode_did(vport, NameServer_DID); |
| if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { |
| /* Good ndlp, issue CT Request to NameServer. Need to |
| * know how many gidfts were issued. If none, then just |
| * flush the RSCN. Otherwise, the outstanding requests |
| * need to complete. |
| */ |
| if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) { |
| if (lpfc_issue_gidft(vport) > 0) |
| return 1; |
| } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) { |
| if (lpfc_issue_gidpt(vport) > 0) |
| return 1; |
| } else { |
| return 1; |
| } |
| } else { |
| /* Nameserver login in question. Revalidate. */ |
| if (ndlp) { |
| ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
| } else { |
| ndlp = lpfc_nlp_init(vport, NameServer_DID); |
| if (!ndlp) { |
| lpfc_els_flush_rscn(vport); |
| return 0; |
| } |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
| } |
| ndlp->nlp_type |= NLP_FABRIC; |
| lpfc_issue_els_plogi(vport, NameServer_DID, 0); |
| /* Wait for NameServer login cmpl before we can |
| * continue |
| */ |
| return 1; |
| } |
| |
| lpfc_els_flush_rscn(vport); |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes Fabric Login (FLOGI) IOCB received as an ELS |
| * unsolicited event. An unsolicited FLOGI can be received in a point-to- |
| * point topology. As an unsolicited FLOGI should not be received in a loop |
| * mode, any unsolicited FLOGI received in loop mode shall be ignored. The |
| * lpfc_check_sparm() routine is invoked to check the parameters in the |
| * unsolicited FLOGI. If parameters validation failed, the routine |
| * lpfc_els_rsp_reject() shall be called with reject reason code set to |
| * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the |
| * FLOGI shall be compared with the Port WWN of the @vport to determine who |
| * will initiate PLOGI. The higher lexicographical value party shall has |
| * higher priority (as the winning port) and will initiate PLOGI and |
| * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result |
| * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI |
| * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. |
| * |
| * Return code |
| * 0 - Successfully processed the unsolicited flogi |
| * 1 - Failed to process the unsolicited flogi |
| **/ |
| static int |
| lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf; |
| uint32_t *lp = (uint32_t *) pcmd->virt; |
| union lpfc_wqe128 *wqe = &cmdiocb->wqe; |
| struct serv_parm *sp; |
| LPFC_MBOXQ_t *mbox; |
| uint32_t cmd, did; |
| int rc; |
| unsigned long fc_flag = 0; |
| uint32_t port_state = 0; |
| |
| /* Clear external loopback plug detected flag */ |
| phba->link_flag &= ~LS_EXTERNAL_LOOPBACK; |
| |
| cmd = *lp++; |
| sp = (struct serv_parm *) lp; |
| |
| /* FLOGI received */ |
| |
| lpfc_set_disctmo(vport); |
| |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| /* We should never receive a FLOGI in loop mode, ignore it */ |
| did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest); |
| |
| /* An FLOGI ELS command <elsCmd> was received from DID <did> in |
| Loop Mode */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0113 An FLOGI ELS command x%x was " |
| "received from DID x%x in Loop Mode\n", |
| cmd, did); |
| return 1; |
| } |
| |
| (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1); |
| |
| /* |
| * If our portname is greater than the remote portname, |
| * then we initiate Nport login. |
| */ |
| |
| rc = memcmp(&vport->fc_portname, &sp->portName, |
| sizeof(struct lpfc_name)); |
| |
| if (!rc) { |
| if (phba->sli_rev < LPFC_SLI_REV4) { |
| mbox = mempool_alloc(phba->mbox_mem_pool, |
| GFP_KERNEL); |
| if (!mbox) |
| return 1; |
| lpfc_linkdown(phba); |
| lpfc_init_link(phba, mbox, |
| phba->cfg_topology, |
| phba->cfg_link_speed); |
| mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
| mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| mbox->vport = vport; |
| rc = lpfc_sli_issue_mbox(phba, mbox, |
| MBX_NOWAIT); |
| lpfc_set_loopback_flag(phba); |
| if (rc == MBX_NOT_FINISHED) |
| mempool_free(mbox, phba->mbox_mem_pool); |
| return 1; |
| } |
| |
| /* External loopback plug insertion detected */ |
| phba->link_flag |= LS_EXTERNAL_LOOPBACK; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_LIBDFC, |
| "1119 External Loopback plug detected\n"); |
| |
| /* abort the flogi coming back to ourselves |
| * due to external loopback on the port. |
| */ |
| lpfc_els_abort_flogi(phba); |
| return 0; |
| |
| } else if (rc > 0) { /* greater than */ |
| set_bit(FC_PT2PT_PLOGI, &vport->fc_flag); |
| |
| /* If we have the high WWPN we can assign our own |
| * myDID; otherwise, we have to WAIT for a PLOGI |
| * from the remote NPort to find out what it |
| * will be. |
| */ |
| vport->fc_myDID = PT2PT_LocalID; |
| } else { |
| vport->fc_myDID = PT2PT_RemoteID; |
| } |
| |
| /* |
| * The vport state should go to LPFC_FLOGI only |
| * AFTER we issue a FLOGI, not receive one. |
| */ |
| spin_lock_irq(shost->host_lock); |
| fc_flag = vport->fc_flag; |
| port_state = vport->port_state; |
| /* Acking an unsol FLOGI. Count 1 for link bounce |
| * work-around. |
| */ |
| vport->rcv_flogi_cnt++; |
| spin_unlock_irq(shost->host_lock); |
| set_bit(FC_PT2PT, &vport->fc_flag); |
| clear_bit(FC_FABRIC, &vport->fc_flag); |
| clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3311 Rcv Flogi PS x%x new PS x%x " |
| "fc_flag x%lx new fc_flag x%lx\n", |
| port_state, vport->port_state, |
| fc_flag, vport->fc_flag); |
| |
| /* |
| * We temporarily set fc_myDID to make it look like we are |
| * a Fabric. This is done just so we end up with the right |
| * did / sid on the FLOGI ACC rsp. |
| */ |
| did = vport->fc_myDID; |
| vport->fc_myDID = Fabric_DID; |
| |
| memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); |
| |
| /* Defer ACC response until AFTER we issue a FLOGI */ |
| if (!test_bit(HBA_FLOGI_ISSUED, &phba->hba_flag)) { |
| phba->defer_flogi_acc.rx_id = bf_get(wqe_ctxt_tag, |
| &wqe->xmit_els_rsp.wqe_com); |
| phba->defer_flogi_acc.ox_id = bf_get(wqe_rcvoxid, |
| &wqe->xmit_els_rsp.wqe_com); |
| |
| vport->fc_myDID = did; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3344 Deferring FLOGI ACC: rx_id: x%x," |
| " ox_id: x%x, hba_flag x%lx\n", |
| phba->defer_flogi_acc.rx_id, |
| phba->defer_flogi_acc.ox_id, phba->hba_flag); |
| |
| phba->defer_flogi_acc.flag = true; |
| |
| /* This nlp_get is paired with nlp_puts that reset the |
| * defer_flogi_acc.flag back to false. We need to retain |
| * a kref on the ndlp until the deferred FLOGI ACC is |
| * processed or cancelled. |
| */ |
| phba->defer_flogi_acc.ndlp = lpfc_nlp_get(ndlp); |
| return 0; |
| } |
| |
| /* Send back ACC */ |
| lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL); |
| |
| /* Now lets put fc_myDID back to what its supposed to be */ |
| vport->fc_myDID = did; |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes Request Node Identification Data (RNID) IOCB |
| * received as an ELS unsolicited event. Only when the RNID specified format |
| * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) |
| * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to |
| * Accept (ACC) the RNID ELS command. All the other RNID formats are |
| * rejected by invoking the lpfc_els_rsp_reject() routine. |
| * |
| * Return code |
| * 0 - Successfully processed rnid iocb (currently always return 0) |
| **/ |
| static int |
| lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_dmabuf *pcmd; |
| uint32_t *lp; |
| RNID *rn; |
| struct ls_rjt stat; |
| |
| pcmd = cmdiocb->cmd_dmabuf; |
| lp = (uint32_t *) pcmd->virt; |
| |
| lp++; |
| rn = (RNID *) lp; |
| |
| /* RNID received */ |
| |
| switch (rn->Format) { |
| case 0: |
| case RNID_TOPOLOGY_DISC: |
| /* Send back ACC */ |
| lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
| break; |
| default: |
| /* Reject this request because format not supported */ |
| stat.un.b.lsRjtRsvd0 = 0; |
| stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
| stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; |
| stat.un.b.vendorUnique = 0; |
| lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
| NULL); |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_echo - Process an unsolicited echo iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * Return code |
| * 0 - Successfully processed echo iocb (currently always return 0) |
| **/ |
| static int |
| lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| uint8_t *pcmd; |
| |
| pcmd = (uint8_t *)cmdiocb->cmd_dmabuf->virt; |
| |
| /* skip over first word of echo command to find echo data */ |
| pcmd += sizeof(uint32_t); |
| |
| lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp); |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes a Link Incident Report Registration(LIRR) IOCB |
| * received as an ELS unsolicited event. Currently, this function just invokes |
| * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. |
| * |
| * Return code |
| * 0 - Successfully processed lirr iocb (currently always return 0) |
| **/ |
| static int |
| lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct ls_rjt stat; |
| |
| /* For now, unconditionally reject this command */ |
| stat.un.b.lsRjtRsvd0 = 0; |
| stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
| stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; |
| stat.un.b.vendorUnique = 0; |
| lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB |
| * received as an ELS unsolicited event. A request to RRQ shall only |
| * be accepted if the Originator Nx_Port N_Port_ID or the Responder |
| * Nx_Port N_Port_ID of the target Exchange is the same as the |
| * N_Port_ID of the Nx_Port that makes the request. If the RRQ is |
| * not accepted, an LS_RJT with reason code "Unable to perform |
| * command request" and reason code explanation "Invalid Originator |
| * S_ID" shall be returned. For now, we just unconditionally accept |
| * RRQ from the target. |
| **/ |
| static void |
| lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
| if (vport->phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_els_clear_rrq(vport, cmdiocb, ndlp); |
| } |
| |
| /** |
| * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * This routine is the completion callback function for the MBX_READ_LNK_STAT |
| * mailbox command. This callback function is to actually send the Accept |
| * (ACC) response to a Read Link Status (RLS) unsolicited IOCB event. It |
| * collects the link statistics from the completion of the MBX_READ_LNK_STAT |
| * mailbox command, constructs the RLS response with the link statistics |
| * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC |
| * response to the RLS. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the RLS Accept Response |
| * ELS IOCB command. |
| * |
| **/ |
| static void |
| lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| int rc = 0; |
| MAILBOX_t *mb; |
| IOCB_t *icmd; |
| union lpfc_wqe128 *wqe; |
| struct RLS_RSP *rls_rsp; |
| uint8_t *pcmd; |
| struct lpfc_iocbq *elsiocb; |
| struct lpfc_nodelist *ndlp; |
| uint16_t oxid; |
| uint16_t rxid; |
| uint32_t cmdsize; |
| u32 ulp_context; |
| |
| mb = &pmb->u.mb; |
| |
| ndlp = pmb->ctx_ndlp; |
| rxid = (uint16_t)(pmb->ctx_u.ox_rx_id & 0xffff); |
| oxid = (uint16_t)((pmb->ctx_u.ox_rx_id >> 16) & 0xffff); |
| memset(&pmb->ctx_u, 0, sizeof(pmb->ctx_u)); |
| pmb->ctx_ndlp = NULL; |
| |
| if (mb->mbxStatus) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| } |
| |
| cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t); |
| elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
| lpfc_max_els_tries, ndlp, |
| ndlp->nlp_DID, ELS_CMD_ACC); |
| |
| /* Decrement the ndlp reference count from previous mbox command */ |
| lpfc_nlp_put(ndlp); |
| |
| if (!elsiocb) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| } |
| |
| ulp_context = get_job_ulpcontext(phba, elsiocb); |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* Xri / rx_id */ |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, rxid); |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, oxid); |
| } else { |
| icmd = &elsiocb->iocb; |
| icmd->ulpContext = rxid; |
| icmd->unsli3.rcvsli3.ox_id = oxid; |
| } |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| pcmd += sizeof(uint32_t); /* Skip past command */ |
| rls_rsp = (struct RLS_RSP *)pcmd; |
| |
| rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); |
| rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); |
| rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); |
| rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); |
| rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); |
| rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| /* Xmit ELS RLS ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
| "2874 Xmit ELS RLS ACC response tag x%x xri x%x, " |
| "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", |
| elsiocb->iotag, ulp_context, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi); |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| return; |
| } |
| |
| /** |
| * lpfc_els_rcv_rls - Process an unsolicited rls iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes Read Link Status (RLS) IOCB received as an |
| * ELS unsolicited event. It first checks the remote port state. If the |
| * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE |
| * state, it invokes the lpfc_els_rsl_reject() routine to send the reject |
| * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command |
| * for reading the HBA link statistics. It is for the callback function, |
| * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command |
| * to actually sending out RPL Accept (ACC) response. |
| * |
| * Return codes |
| * 0 - Successfully processed rls iocb (currently always return 0) |
| **/ |
| static int |
| lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mbox; |
| struct ls_rjt stat; |
| u32 ctx = get_job_ulpcontext(phba, cmdiocb); |
| u32 ox_id = get_job_rcvoxid(phba, cmdiocb); |
| |
| if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
| (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
| /* reject the unsolicited RLS request and done with it */ |
| goto reject_out; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
| if (mbox) { |
| lpfc_read_lnk_stat(phba, mbox); |
| mbox->ctx_u.ox_rx_id = ox_id << 16 | ctx; |
| mbox->ctx_ndlp = lpfc_nlp_get(ndlp); |
| if (!mbox->ctx_ndlp) |
| goto node_err; |
| mbox->vport = vport; |
| mbox->mbox_cmpl = lpfc_els_rsp_rls_acc; |
| if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
| != MBX_NOT_FINISHED) |
| /* Mbox completion will send ELS Response */ |
| return 0; |
| /* Decrement reference count used for the failed mbox |
| * command. |
| */ |
| lpfc_nlp_put(ndlp); |
| node_err: |
| mempool_free(mbox, phba->mbox_mem_pool); |
| } |
| reject_out: |
| /* issue rejection response */ |
| stat.un.b.lsRjtRsvd0 = 0; |
| stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
| stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; |
| stat.un.b.vendorUnique = 0; |
| lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes Read Timout Value (RTV) IOCB received as an |
| * ELS unsolicited event. It first checks the remote port state. If the |
| * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE |
| * state, it invokes the lpfc_els_rsl_reject() routine to send the reject |
| * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout |
| * Value (RTV) unsolicited IOCB event. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the RTV Accept Response |
| * ELS IOCB command. |
| * |
| * Return codes |
| * 0 - Successfully processed rtv iocb (currently always return 0) |
| **/ |
| static int |
| lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| int rc = 0; |
| IOCB_t *icmd; |
| union lpfc_wqe128 *wqe; |
| struct lpfc_hba *phba = vport->phba; |
| struct ls_rjt stat; |
| struct RTV_RSP *rtv_rsp; |
| uint8_t *pcmd; |
| struct lpfc_iocbq *elsiocb; |
| uint32_t cmdsize; |
| u32 ulp_context; |
| |
| if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
| (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
| /* reject the unsolicited RTV request and done with it */ |
| goto reject_out; |
| |
| cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t); |
| elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
| lpfc_max_els_tries, ndlp, |
| ndlp->nlp_DID, ELS_CMD_ACC); |
| |
| if (!elsiocb) |
| return 1; |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| pcmd += sizeof(uint32_t); /* Skip past command */ |
| |
| ulp_context = get_job_ulpcontext(phba, elsiocb); |
| /* use the command's xri in the response */ |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, |
| get_job_ulpcontext(phba, cmdiocb)); |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| get_job_rcvoxid(phba, cmdiocb)); |
| } else { |
| icmd = &elsiocb->iocb; |
| icmd->ulpContext = get_job_ulpcontext(phba, cmdiocb); |
| icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, cmdiocb); |
| } |
| |
| rtv_rsp = (struct RTV_RSP *)pcmd; |
| |
| /* populate RTV payload */ |
| rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */ |
| rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov); |
| bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0); |
| bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */ |
| rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov); |
| |
| /* Xmit ELS RLS ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
| "2875 Xmit ELS RTV ACC response tag x%x xri x%x, " |
| "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, " |
| "Data: x%x x%x x%x\n", |
| elsiocb->iotag, ulp_context, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi, |
| rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov); |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 0; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| return 0; |
| |
| reject_out: |
| /* issue rejection response */ |
| stat.un.b.lsRjtRsvd0 = 0; |
| stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
| stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; |
| stat.un.b.vendorUnique = 0; |
| lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
| return 0; |
| } |
| |
| /* lpfc_issue_els_rrq - Process an unsolicited rrq iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @did: DID of the target. |
| * @rrq: Pointer to the rrq struct. |
| * |
| * Build a ELS RRQ command and send it to the target. If the issue_iocb is |
| * successful, the completion handler will clear the RRQ. |
| * |
| * Return codes |
| * 0 - Successfully sent rrq els iocb. |
| * 1 - Failed to send rrq els iocb. |
| **/ |
| static int |
| lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| uint32_t did, struct lpfc_node_rrq *rrq) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct RRQ *els_rrq; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| int ret; |
| |
| if (!ndlp) |
| return 1; |
| |
| /* If ndlp is not NULL, we will bump the reference count on it */ |
| cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ)); |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did, |
| ELS_CMD_RRQ); |
| if (!elsiocb) |
| return 1; |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| |
| /* For RRQ request, remainder of payload is Exchange IDs */ |
| *((uint32_t *) (pcmd)) = ELS_CMD_RRQ; |
| pcmd += sizeof(uint32_t); |
| els_rrq = (struct RRQ *) pcmd; |
| |
| bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]); |
| bf_set(rrq_rxid, els_rrq, rrq->rxid); |
| bf_set(rrq_did, els_rrq, vport->fc_myDID); |
| els_rrq->rrq = cpu_to_be32(els_rrq->rrq); |
| els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg); |
| |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue RRQ: did:x%x", |
| did, rrq->xritag, rrq->rxid); |
| elsiocb->context_un.rrq = rrq; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rrq; |
| |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) |
| goto io_err; |
| |
| ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (ret == IOCB_ERROR) { |
| lpfc_nlp_put(ndlp); |
| goto io_err; |
| } |
| return 0; |
| |
| io_err: |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| /** |
| * lpfc_send_rrq - Sends ELS RRQ if needed. |
| * @phba: pointer to lpfc hba data structure. |
| * @rrq: pointer to the active rrq. |
| * |
| * This routine will call the lpfc_issue_els_rrq if the rrq is |
| * still active for the xri. If this function returns a failure then |
| * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq. |
| * |
| * Returns 0 Success. |
| * 1 Failure. |
| **/ |
| int |
| lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq) |
| { |
| struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport, |
| rrq->nlp_DID); |
| if (!ndlp) |
| return 1; |
| |
| if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag)) |
| return lpfc_issue_els_rrq(rrq->vport, ndlp, |
| rrq->nlp_DID, rrq); |
| else |
| return 1; |
| } |
| |
| /** |
| * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdsize: size of the ELS command. |
| * @oldiocb: pointer to the original lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. |
| * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the RPL Accept Response |
| * ELS command. |
| * |
| * Return code |
| * 0 - Successfully issued ACC RPL ELS command |
| * 1 - Failed to issue ACC RPL ELS command |
| **/ |
| static int |
| lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
| struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
| { |
| int rc = 0; |
| struct lpfc_hba *phba = vport->phba; |
| IOCB_t *icmd; |
| union lpfc_wqe128 *wqe; |
| RPL_RSP rpl_rsp; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| u32 ulp_context; |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
| ndlp->nlp_DID, ELS_CMD_ACC); |
| |
| if (!elsiocb) |
| return 1; |
| |
| ulp_context = get_job_ulpcontext(phba, elsiocb); |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| /* Xri / rx_id */ |
| bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, |
| get_job_ulpcontext(phba, oldiocb)); |
| bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, |
| get_job_rcvoxid(phba, oldiocb)); |
| } else { |
| icmd = &elsiocb->iocb; |
| icmd->ulpContext = get_job_ulpcontext(phba, oldiocb); |
| icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, oldiocb); |
| } |
| |
| pcmd = elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
| pcmd += sizeof(uint16_t); |
| *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
| pcmd += sizeof(uint16_t); |
| |
| /* Setup the RPL ACC payload */ |
| rpl_rsp.listLen = be32_to_cpu(1); |
| rpl_rsp.index = 0; |
| rpl_rsp.port_num_blk.portNum = 0; |
| rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
| memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, |
| sizeof(struct lpfc_name)); |
| memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
| /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0120 Xmit ELS RPL ACC response tag x%x " |
| "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " |
| "rpi x%x\n", |
| elsiocb->iotag, ulp_context, |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_rpi); |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp; |
| phba->fc_stat.elsXmitACC++; |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| return 1; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes Read Port List (RPL) IOCB received as an ELS |
| * unsolicited event. It first checks the remote port state. If the remote |
| * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it |
| * invokes the lpfc_els_rsp_reject() routine to send reject response. |
| * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine |
| * to accept the RPL. |
| * |
| * Return code |
| * 0 - Successfully processed rpl iocb (currently always return 0) |
| **/ |
| static int |
| lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_dmabuf *pcmd; |
| uint32_t *lp; |
| uint32_t maxsize; |
| uint16_t cmdsize; |
| RPL *rpl; |
| struct ls_rjt stat; |
| |
| if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
| (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { |
| /* issue rejection response */ |
| stat.un.b.lsRjtRsvd0 = 0; |
| stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; |
| stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; |
| stat.un.b.vendorUnique = 0; |
| lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
| NULL); |
| /* rejected the unsolicited RPL request and done with it */ |
| return 0; |
| } |
| |
| pcmd = cmdiocb->cmd_dmabuf; |
| lp = (uint32_t *) pcmd->virt; |
| rpl = (RPL *) (lp + 1); |
| maxsize = be32_to_cpu(rpl->maxsize); |
| |
| /* We support only one port */ |
| if ((rpl->index == 0) && |
| ((maxsize == 0) || |
| ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { |
| cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); |
| } else { |
| cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
| } |
| lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
| * @vport: pointer to a virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes Fibre Channel Address Resolution Protocol |
| * (FARP) Request IOCB received as an ELS unsolicited event. Currently, |
| * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, |
| * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the |
| * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the |
| * remote PortName is compared against the FC PortName stored in the @vport |
| * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is |
| * compared against the FC NodeName stored in the @vport data structure. |
| * If any of these matches and the FARP_REQUEST_FARPR flag is set in the |
| * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is |
| * invoked to send out FARP Response to the remote node. Before sending the |
| * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP |
| * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() |
| * routine is invoked to log into the remote port first. |
| * |
| * Return code |
| * 0 - Either the FARP Match Mode not supported or successfully processed |
| **/ |
| static int |
| lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_dmabuf *pcmd; |
| uint32_t *lp; |
| FARP *fp; |
| uint32_t cnt, did; |
| |
| did = get_job_els_rsp64_did(vport->phba, cmdiocb); |
| pcmd = cmdiocb->cmd_dmabuf; |
| lp = (uint32_t *) pcmd->virt; |
| |
| lp++; |
| fp = (FARP *) lp; |
| /* FARP-REQ received from DID <did> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0601 FARP-REQ received from DID x%x\n", did); |
| /* We will only support match on WWPN or WWNN */ |
| if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { |
| return 0; |
| } |
| |
| cnt = 0; |
| /* If this FARP command is searching for my portname */ |
| if (fp->Mflags & FARP_MATCH_PORT) { |
| if (memcmp(&fp->RportName, &vport->fc_portname, |
| sizeof(struct lpfc_name)) == 0) |
| cnt = 1; |
| } |
| |
| /* If this FARP command is searching for my nodename */ |
| if (fp->Mflags & FARP_MATCH_NODE) { |
| if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
| sizeof(struct lpfc_name)) == 0) |
| cnt = 1; |
| } |
| |
| if (cnt) { |
| if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || |
| (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { |
| /* Log back into the node before sending the FARP. */ |
| if (fp->Rflags & FARP_REQUEST_PLOGI) { |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, |
| NLP_STE_PLOGI_ISSUE); |
| lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
| } |
| |
| /* Send a FARP response to that node */ |
| if (fp->Rflags & FARP_REQUEST_FARPR) |
| lpfc_issue_els_farpr(vport, did, 0); |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes Fibre Channel Address Resolution Protocol |
| * Response (FARPR) IOCB received as an ELS unsolicited event. It simply |
| * invokes the lpfc_els_rsp_acc() routine to the remote node to accept |
| * the FARP response request. |
| * |
| * Return code |
| * 0 - Successfully processed FARPR IOCB (currently always return 0) |
| **/ |
| static int |
| lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| uint32_t did; |
| |
| did = get_job_els_rsp64_did(vport->phba, cmdiocb); |
| |
| /* FARP-RSP received from DID <did> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0600 FARP-RSP received from DID x%x\n", did); |
| /* ACCEPT the Farp resp request */ |
| lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @fan_ndlp: pointer to a node-list data structure. |
| * |
| * This routine processes a Fabric Address Notification (FAN) IOCB |
| * command received as an ELS unsolicited event. The FAN ELS command will |
| * only be processed on a physical port (i.e., the @vport represents the |
| * physical port). The fabric NodeName and PortName from the FAN IOCB are |
| * compared against those in the phba data structure. If any of those is |
| * different, the lpfc_initial_flogi() routine is invoked to initialize |
| * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, |
| * if both of those are identical, the lpfc_issue_fabric_reglogin() routine |
| * is invoked to register login to the fabric. |
| * |
| * Return code |
| * 0 - Successfully processed fan iocb (currently always return 0). |
| **/ |
| static int |
| lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *fan_ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t *lp; |
| FAN *fp; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
| lp = (uint32_t *)cmdiocb->cmd_dmabuf->virt; |
| fp = (FAN *) ++lp; |
| /* FAN received; Fan does not have a reply sequence */ |
| if ((vport == phba->pport) && |
| (vport->port_state == LPFC_LOCAL_CFG_LINK)) { |
| if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
| sizeof(struct lpfc_name))) || |
| (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
| sizeof(struct lpfc_name)))) { |
| /* This port has switched fabrics. FLOGI is required */ |
| lpfc_issue_init_vfi(vport); |
| } else { |
| /* FAN verified - skip FLOGI */ |
| vport->fc_myDID = vport->fc_prevDID; |
| if (phba->sli_rev < LPFC_SLI_REV4) |
| lpfc_issue_fabric_reglogin(vport); |
| else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3138 Need register VFI: (x%x/%x)\n", |
| vport->fc_prevDID, vport->fc_myDID); |
| lpfc_issue_reg_vfi(vport); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_rcv_edc - Process an unsolicited EDC iocb |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * Return code |
| * 0 - Successfully processed echo iocb (currently always return 0) |
| **/ |
| static int |
| lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct fc_els_edc *edc_req; |
| struct fc_tlv_desc *tlv; |
| uint8_t *payload; |
| uint32_t *ptr, dtag; |
| const char *dtag_nm; |
| int desc_cnt = 0, bytes_remain; |
| struct fc_diag_lnkflt_desc *plnkflt; |
| |
| payload = cmdiocb->cmd_dmabuf->virt; |
| |
| edc_req = (struct fc_els_edc *)payload; |
| bytes_remain = be32_to_cpu(edc_req->desc_len); |
| |
| ptr = (uint32_t *)payload; |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, |
| "3319 Rcv EDC payload len %d: x%x x%x x%x\n", |
| bytes_remain, be32_to_cpu(*ptr), |
| be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2))); |
| |
| /* No signal support unless there is a congestion descriptor */ |
| phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED; |
| phba->cgn_sig_freq = 0; |
| phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN; |
| |
| if (bytes_remain <= 0) |
| goto out; |
| |
| tlv = edc_req->desc; |
| |
| /* |
| * cycle through EDC diagnostic descriptors to find the |
| * congestion signaling capability descriptor |
| */ |
| while (bytes_remain) { |
| if (bytes_remain < FC_TLV_DESC_HDR_SZ) { |
| lpfc_printf_log(phba, KERN_WARNING, |
| LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, |
| "6464 Truncated TLV hdr on " |
| "Diagnostic descriptor[%d]\n", |
| desc_cnt); |
| goto out; |
| } |
| |
| dtag = be32_to_cpu(tlv->desc_tag); |
| switch (dtag) { |
| case ELS_DTAG_LNK_FAULT_CAP: |
| if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || |
| FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != |
| sizeof(struct fc_diag_lnkflt_desc)) { |
| lpfc_printf_log(phba, KERN_WARNING, |
| LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, |
| "6465 Truncated Link Fault Diagnostic " |
| "descriptor[%d]: %d vs 0x%zx 0x%zx\n", |
| desc_cnt, bytes_remain, |
| FC_TLV_DESC_SZ_FROM_LENGTH(tlv), |
| sizeof(struct fc_diag_lnkflt_desc)); |
| goto out; |
| } |
| plnkflt = (struct fc_diag_lnkflt_desc *)tlv; |
| lpfc_printf_log(phba, KERN_INFO, |
| LOG_ELS | LOG_LDS_EVENT, |
| "4626 Link Fault Desc Data: x%08x len x%x " |
| "da x%x dd x%x interval x%x\n", |
| be32_to_cpu(plnkflt->desc_tag), |
| be32_to_cpu(plnkflt->desc_len), |
| be32_to_cpu( |
| plnkflt->degrade_activate_threshold), |
| be32_to_cpu( |
| plnkflt->degrade_deactivate_threshold), |
| be32_to_cpu(plnkflt->fec_degrade_interval)); |
| break; |
| case ELS_DTAG_CG_SIGNAL_CAP: |
| if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) || |
| FC_TLV_DESC_SZ_FROM_LENGTH(tlv) != |
| sizeof(struct fc_diag_cg_sig_desc)) { |
| lpfc_printf_log( |
| phba, KERN_WARNING, LOG_CGN_MGMT, |
| "6466 Truncated cgn signal Diagnostic " |
| "descriptor[%d]: %d vs 0x%zx 0x%zx\n", |
| desc_cnt, bytes_remain, |
| FC_TLV_DESC_SZ_FROM_LENGTH(tlv), |
| sizeof(struct fc_diag_cg_sig_desc)); |
| goto out; |
| } |
| |
| phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; |
| phba->cgn_reg_signal = phba->cgn_init_reg_signal; |
| |
| /* We start negotiation with lpfc_fabric_cgn_frequency. |
| * When we process the EDC, we will settle on the |
| * higher frequency. |
| */ |
| phba->cgn_sig_freq = lpfc_fabric_cgn_frequency; |
| |
| lpfc_least_capable_settings( |
| phba, (struct fc_diag_cg_sig_desc *)tlv); |
| break; |
| default: |
| dtag_nm = lpfc_get_tlv_dtag_nm(dtag); |
| lpfc_printf_log(phba, KERN_WARNING, |
| LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT, |
| "6467 unknown Diagnostic " |
| "Descriptor[%d]: tag x%x (%s)\n", |
| desc_cnt, dtag, dtag_nm); |
| } |
| bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); |
| tlv = fc_tlv_next_desc(tlv); |
| desc_cnt++; |
| } |
| out: |
| /* Need to send back an ACC */ |
| lpfc_issue_els_edc_rsp(vport, cmdiocb, ndlp); |
| |
| lpfc_config_cgn_signal(phba); |
| return 0; |
| } |
| |
| /** |
| * lpfc_els_timeout - Handler funciton to the els timer |
| * @t: timer context used to obtain the vport. |
| * |
| * This routine is invoked by the ELS timer after timeout. It posts the ELS |
| * timer timeout event by setting the WORKER_ELS_TMO bit to the work port |
| * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake |
| * up the worker thread. It is for the worker thread to invoke the routine |
| * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. |
| **/ |
| void |
| lpfc_els_timeout(struct timer_list *t) |
| { |
| struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc); |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t tmo_posted; |
| unsigned long iflag; |
| |
| spin_lock_irqsave(&vport->work_port_lock, iflag); |
| tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
| if (!tmo_posted && !test_bit(FC_UNLOADING, &vport->load_flag)) |
| vport->work_port_events |= WORKER_ELS_TMO; |
| spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
| |
| if (!tmo_posted && !test_bit(FC_UNLOADING, &vport->load_flag)) |
| lpfc_worker_wake_up(phba); |
| return; |
| } |
| |
| |
| /** |
| * lpfc_els_timeout_handler - Process an els timeout event |
| * @vport: pointer to a virtual N_Port data structure. |
| * |
| * This routine is the actual handler function that processes an ELS timeout |
| * event. It walks the ELS ring to get and abort all the IOCBs (except the |
| * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by |
| * invoking the lpfc_sli_issue_abort_iotag() routine. |
| **/ |
| void |
| lpfc_els_timeout_handler(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_sli_ring *pring; |
| struct lpfc_iocbq *tmp_iocb, *piocb; |
| IOCB_t *cmd = NULL; |
| struct lpfc_dmabuf *pcmd; |
| uint32_t els_command = 0; |
| uint32_t timeout; |
| uint32_t remote_ID = 0xffffffff; |
| LIST_HEAD(abort_list); |
| u32 ulp_command = 0, ulp_context = 0, did = 0, iotag = 0; |
| |
| |
| timeout = (uint32_t)(phba->fc_ratov << 1); |
| |
| pring = lpfc_phba_elsring(phba); |
| if (unlikely(!pring)) |
| return; |
| |
| if (test_bit(FC_UNLOADING, &phba->pport->load_flag)) |
| return; |
| |
| spin_lock_irq(&phba->hbalock); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| spin_lock(&pring->ring_lock); |
| |
| list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { |
| ulp_command = get_job_cmnd(phba, piocb); |
| ulp_context = get_job_ulpcontext(phba, piocb); |
| did = get_job_els_rsp64_did(phba, piocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| iotag = get_wqe_reqtag(piocb); |
| } else { |
| cmd = &piocb->iocb; |
| iotag = cmd->ulpIoTag; |
| } |
| |
| if ((piocb->cmd_flag & LPFC_IO_LIBDFC) != 0 || |
| ulp_command == CMD_ABORT_XRI_CX || |
| ulp_command == CMD_ABORT_XRI_CN || |
| ulp_command == CMD_CLOSE_XRI_CN) |
| continue; |
| |
| if (piocb->vport != vport) |
| continue; |
| |
| pcmd = piocb->cmd_dmabuf; |
| if (pcmd) |
| els_command = *(uint32_t *) (pcmd->virt); |
| |
| if (els_command == ELS_CMD_FARP || |
| els_command == ELS_CMD_FARPR || |
| els_command == ELS_CMD_FDISC) |
| continue; |
| |
| if (piocb->drvrTimeout > 0) { |
| if (piocb->drvrTimeout >= timeout) |
| piocb->drvrTimeout -= timeout; |
| else |
| piocb->drvrTimeout = 0; |
| continue; |
| } |
| |
| remote_ID = 0xffffffff; |
| if (ulp_command != CMD_GEN_REQUEST64_CR) { |
| remote_ID = did; |
| } else { |
| struct lpfc_nodelist *ndlp; |
| ndlp = __lpfc_findnode_rpi(vport, ulp_context); |
| if (ndlp) |
| remote_ID = ndlp->nlp_DID; |
| } |
| list_add_tail(&piocb->dlist, &abort_list); |
| } |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| spin_unlock(&pring->ring_lock); |
| spin_unlock_irq(&phba->hbalock); |
| |
| list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0127 ELS timeout Data: x%x x%x x%x " |
| "x%x\n", els_command, |
| remote_ID, ulp_command, iotag); |
| |
| spin_lock_irq(&phba->hbalock); |
| list_del_init(&piocb->dlist); |
| lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /* Make sure HBA is alive */ |
| lpfc_issue_hb_tmo(phba); |
| |
| if (!list_empty(&pring->txcmplq)) |
| if (!test_bit(FC_UNLOADING, &phba->pport->load_flag)) |
| mod_timer(&vport->els_tmofunc, |
| jiffies + msecs_to_jiffies(1000 * timeout)); |
| } |
| |
| /** |
| * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
| * @vport: pointer to a host virtual N_Port data structure. |
| * |
| * This routine is used to clean up all the outstanding ELS commands on a |
| * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() |
| * routine. After that, it walks the ELS transmit queue to remove all the |
| * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For |
| * the IOCBs with a non-NULL completion callback function, the callback |
| * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and |
| * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion |
| * callback function, the IOCB will simply be released. Finally, it walks |
| * the ELS transmit completion queue to issue an abort IOCB to any transmit |
| * completion queue IOCB that is associated with the @vport and is not |
| * an IOCB from libdfc (i.e., the management plane IOCBs that are not |
| * part of the discovery state machine) out to HBA by invoking the |
| * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the |
| * abort IOCB to any transmit completion queueed IOCB, it does not guarantee |
| * the IOCBs are aborted when this function returns. |
| **/ |
| void |
| lpfc_els_flush_cmd(struct lpfc_vport *vport) |
| { |
| LIST_HEAD(abort_list); |
| LIST_HEAD(cancel_list); |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_sli_ring *pring; |
| struct lpfc_iocbq *tmp_iocb, *piocb; |
| u32 ulp_command; |
| unsigned long iflags = 0; |
| bool mbx_tmo_err; |
| |
| lpfc_fabric_abort_vport(vport); |
| |
| /* |
| * For SLI3, only the hbalock is required. But SLI4 needs to coordinate |
| * with the ring insert operation. Because lpfc_sli_issue_abort_iotag |
| * ultimately grabs the ring_lock, the driver must splice the list into |
| * a working list and release the locks before calling the abort. |
| */ |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| pring = lpfc_phba_elsring(phba); |
| |
| /* Bail out if we've no ELS wq, like in PCI error recovery case. */ |
| if (unlikely(!pring)) { |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| return; |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| spin_lock(&pring->ring_lock); |
| |
| mbx_tmo_err = test_bit(MBX_TMO_ERR, &phba->bit_flags); |
| /* First we need to issue aborts to outstanding cmds on txcmpl */ |
| list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { |
| if (piocb->cmd_flag & LPFC_IO_LIBDFC && !mbx_tmo_err) |
| continue; |
| |
| if (piocb->vport != vport) |
| continue; |
| |
| if (piocb->cmd_flag & LPFC_DRIVER_ABORTED && !mbx_tmo_err) |
| continue; |
| |
| /* On the ELS ring we can have ELS_REQUESTs, ELS_RSPs, |
| * or GEN_REQUESTs waiting for a CQE response. |
| */ |
| ulp_command = get_job_cmnd(phba, piocb); |
| if (ulp_command == CMD_ELS_REQUEST64_WQE || |
| ulp_command == CMD_XMIT_ELS_RSP64_WQE) { |
| list_add_tail(&piocb->dlist, &abort_list); |
| |
| /* If the link is down when flushing ELS commands |
| * the firmware will not complete them till after |
| * the link comes back up. This may confuse |
| * discovery for the new link up, so we need to |
| * change the compl routine to just clean up the iocb |
| * and avoid any retry logic. |
| */ |
| if (phba->link_state == LPFC_LINK_DOWN) |
| piocb->cmd_cmpl = lpfc_cmpl_els_link_down; |
| } else if (ulp_command == CMD_GEN_REQUEST64_CR || |
| mbx_tmo_err) |
| list_add_tail(&piocb->dlist, &abort_list); |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| spin_unlock(&pring->ring_lock); |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| |
| /* Abort each txcmpl iocb on aborted list and remove the dlist links. */ |
| list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) { |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| list_del_init(&piocb->dlist); |
| if (mbx_tmo_err || !(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) |
| list_move_tail(&piocb->list, &cancel_list); |
| else |
| lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL); |
| |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| } |
| if (!list_empty(&cancel_list)) |
| lpfc_sli_cancel_iocbs(phba, &cancel_list, IOSTAT_LOCAL_REJECT, |
| IOERR_SLI_ABORTED); |
| else |
| /* Make sure HBA is alive */ |
| lpfc_issue_hb_tmo(phba); |
| |
| if (!list_empty(&abort_list)) |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "3387 abort list for txq not empty\n"); |
| INIT_LIST_HEAD(&abort_list); |
| |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| spin_lock(&pring->ring_lock); |
| |
| /* No need to abort the txq list, |
| * just queue them up for lpfc_sli_cancel_iocbs |
| */ |
| list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
| ulp_command = get_job_cmnd(phba, piocb); |
| |
| if (piocb->cmd_flag & LPFC_IO_LIBDFC) |
| continue; |
| |
| /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ |
| if (ulp_command == CMD_QUE_RING_BUF_CN || |
| ulp_command == CMD_QUE_RING_BUF64_CN || |
| ulp_command == CMD_CLOSE_XRI_CN || |
| ulp_command == CMD_ABORT_XRI_CN || |
| ulp_command == CMD_ABORT_XRI_CX) |
| continue; |
| |
| if (piocb->vport != vport) |
| continue; |
| |
| list_del_init(&piocb->list); |
| list_add_tail(&piocb->list, &abort_list); |
| } |
| |
| /* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */ |
| if (vport == phba->pport) { |
| list_for_each_entry_safe(piocb, tmp_iocb, |
| &phba->fabric_iocb_list, list) { |
| list_del_init(&piocb->list); |
| list_add_tail(&piocb->list, &abort_list); |
| } |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| spin_unlock(&pring->ring_lock); |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &abort_list, |
| IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is used to clean up all the outstanding ELS commands on a |
| * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() |
| * routine. After that, it walks the ELS transmit queue to remove all the |
| * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For |
| * the IOCBs with the completion callback function associated, the callback |
| * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and |
| * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion |
| * callback function associated, the IOCB will simply be released. Finally, |
| * it walks the ELS transmit completion queue to issue an abort IOCB to any |
| * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the |
| * management plane IOCBs that are not part of the discovery state machine) |
| * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. |
| **/ |
| void |
| lpfc_els_flush_all_cmd(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport; |
| |
| spin_lock_irq(&phba->port_list_lock); |
| list_for_each_entry(vport, &phba->port_list, listentry) |
| lpfc_els_flush_cmd(vport); |
| spin_unlock_irq(&phba->port_list_lock); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_send_els_failure_event - Posts an ELS command failure event |
| * @phba: Pointer to hba context object. |
| * @cmdiocbp: Pointer to command iocb which reported error. |
| * @rspiocbp: Pointer to response iocb which reported error. |
| * |
| * This function sends an event when there is an ELS command |
| * failure. |
| **/ |
| void |
| lpfc_send_els_failure_event(struct lpfc_hba *phba, |
| struct lpfc_iocbq *cmdiocbp, |
| struct lpfc_iocbq *rspiocbp) |
| { |
| struct lpfc_vport *vport = cmdiocbp->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_lsrjt_event lsrjt_event; |
| struct lpfc_fabric_event_header fabric_event; |
| struct ls_rjt stat; |
| struct lpfc_nodelist *ndlp; |
| uint32_t *pcmd; |
| u32 ulp_status, ulp_word4; |
| |
| ndlp = cmdiocbp->ndlp; |
| if (!ndlp) |
| return; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocbp); |
| ulp_word4 = get_job_word4(phba, rspiocbp); |
| |
| if (ulp_status == IOSTAT_LS_RJT) { |
| lsrjt_event.header.event_type = FC_REG_ELS_EVENT; |
| lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; |
| memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, |
| sizeof(struct lpfc_name)); |
| memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, |
| sizeof(struct lpfc_name)); |
| pcmd = (uint32_t *)cmdiocbp->cmd_dmabuf->virt; |
| lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0; |
| stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4); |
| lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; |
| lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; |
| fc_host_post_vendor_event(shost, |
| fc_get_event_number(), |
| sizeof(lsrjt_event), |
| (char *)&lsrjt_event, |
| LPFC_NL_VENDOR_ID); |
| return; |
| } |
| if (ulp_status == IOSTAT_NPORT_BSY || |
| ulp_status == IOSTAT_FABRIC_BSY) { |
| fabric_event.event_type = FC_REG_FABRIC_EVENT; |
| if (ulp_status == IOSTAT_NPORT_BSY) |
| fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; |
| else |
| fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; |
| memcpy(fabric_event.wwpn, &ndlp->nlp_portname, |
| sizeof(struct lpfc_name)); |
| memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, |
| sizeof(struct lpfc_name)); |
| fc_host_post_vendor_event(shost, |
| fc_get_event_number(), |
| sizeof(fabric_event), |
| (char *)&fabric_event, |
| LPFC_NL_VENDOR_ID); |
| return; |
| } |
| |
| } |
| |
| /** |
| * lpfc_send_els_event - Posts unsolicited els event |
| * @vport: Pointer to vport object. |
| * @ndlp: Pointer FC node object. |
| * @payload: ELS command code type. |
| * |
| * This function posts an event when there is an incoming |
| * unsolicited ELS command. |
| **/ |
| static void |
| lpfc_send_els_event(struct lpfc_vport *vport, |
| struct lpfc_nodelist *ndlp, |
| uint32_t *payload) |
| { |
| struct lpfc_els_event_header *els_data = NULL; |
| struct lpfc_logo_event *logo_data = NULL; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| if (*payload == ELS_CMD_LOGO) { |
| logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); |
| if (!logo_data) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0148 Failed to allocate memory " |
| "for LOGO event\n"); |
| return; |
| } |
| els_data = &logo_data->header; |
| } else { |
| els_data = kmalloc(sizeof(struct lpfc_els_event_header), |
| GFP_KERNEL); |
| if (!els_data) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0149 Failed to allocate memory " |
| "for ELS event\n"); |
| return; |
| } |
| } |
| els_data->event_type = FC_REG_ELS_EVENT; |
| switch (*payload) { |
| case ELS_CMD_PLOGI: |
| els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
| break; |
| case ELS_CMD_PRLO: |
| els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
| break; |
| case ELS_CMD_ADISC: |
| els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
| break; |
| case ELS_CMD_LOGO: |
| els_data->subcategory = LPFC_EVENT_LOGO_RCV; |
| /* Copy the WWPN in the LOGO payload */ |
| memcpy(logo_data->logo_wwpn, &payload[2], |
| sizeof(struct lpfc_name)); |
| break; |
| default: |
| kfree(els_data); |
| return; |
| } |
| memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
| memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); |
| if (*payload == ELS_CMD_LOGO) { |
| fc_host_post_vendor_event(shost, |
| fc_get_event_number(), |
| sizeof(struct lpfc_logo_event), |
| (char *)logo_data, |
| LPFC_NL_VENDOR_ID); |
| kfree(logo_data); |
| } else { |
| fc_host_post_vendor_event(shost, |
| fc_get_event_number(), |
| sizeof(struct lpfc_els_event_header), |
| (char *)els_data, |
| LPFC_NL_VENDOR_ID); |
| kfree(els_data); |
| } |
| |
| return; |
| } |
| |
| |
| DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types, |
| FC_FPIN_LI_EVT_TYPES_INIT); |
| |
| DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_deli_event_nm, fc_fpin_deli_event_types, |
| FC_FPIN_DELI_EVT_TYPES_INIT); |
| |
| DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_event_nm, fc_fpin_congn_event_types, |
| FC_FPIN_CONGN_EVT_TYPES_INIT); |
| |
| DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_severity_nm, |
| fc_fpin_congn_severity_types, |
| FC_FPIN_CONGN_SEVERITY_INIT); |
| |
| |
| /** |
| * lpfc_display_fpin_wwpn - Display WWPNs accessible by the attached port |
| * @phba: Pointer to phba object. |
| * @wwnlist: Pointer to list of WWPNs in FPIN payload |
| * @cnt: count of WWPNs in FPIN payload |
| * |
| * This routine is called by LI and PC descriptors. |
| * Limit the number of WWPNs displayed to 6 log messages, 6 per log message |
| */ |
| static void |
| lpfc_display_fpin_wwpn(struct lpfc_hba *phba, __be64 *wwnlist, u32 cnt) |
| { |
| char buf[LPFC_FPIN_WWPN_LINE_SZ]; |
| __be64 wwn; |
| u64 wwpn; |
| int i, len; |
| int line = 0; |
| int wcnt = 0; |
| bool endit = false; |
| |
| len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, "Accessible WWPNs:"); |
| for (i = 0; i < cnt; i++) { |
| /* Are we on the last WWPN */ |
| if (i == (cnt - 1)) |
| endit = true; |
| |
| /* Extract the next WWPN from the payload */ |
| wwn = *wwnlist++; |
| wwpn = be64_to_cpu(wwn); |
| len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len, |
| " %016llx", wwpn); |
| |
| /* Log a message if we are on the last WWPN |
| * or if we hit the max allowed per message. |
| */ |
| wcnt++; |
| if (wcnt == LPFC_FPIN_WWPN_LINE_CNT || endit) { |
| buf[len] = 0; |
| lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
| "4686 %s\n", buf); |
| |
| /* Check if we reached the last WWPN */ |
| if (endit) |
| return; |
| |
| /* Limit the number of log message displayed per FPIN */ |
| line++; |
| if (line == LPFC_FPIN_WWPN_NUM_LINE) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
| "4687 %d WWPNs Truncated\n", |
| cnt - i - 1); |
| return; |
| } |
| |
| /* Start over with next log message */ |
| wcnt = 0; |
| len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, |
| "Additional WWPNs:"); |
| } |
| } |
| } |
| |
| /** |
| * lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event. |
| * @phba: Pointer to phba object. |
| * @tlv: Pointer to the Link Integrity Notification Descriptor. |
| * |
| * This function processes a Link Integrity FPIN event by logging a message. |
| **/ |
| static void |
| lpfc_els_rcv_fpin_li(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) |
| { |
| struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv; |
| const char *li_evt_str; |
| u32 li_evt, cnt; |
| |
| li_evt = be16_to_cpu(li->event_type); |
| li_evt_str = lpfc_get_fpin_li_event_nm(li_evt); |
| cnt = be32_to_cpu(li->pname_count); |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
| "4680 FPIN Link Integrity %s (x%x) " |
| "Detecting PN x%016llx Attached PN x%016llx " |
| "Duration %d mSecs Count %d Port Cnt %d\n", |
| li_evt_str, li_evt, |
| be64_to_cpu(li->detecting_wwpn), |
| be64_to_cpu(li->attached_wwpn), |
| be32_to_cpu(li->event_threshold), |
| be32_to_cpu(li->event_count), cnt); |
| |
| lpfc_display_fpin_wwpn(phba, (__be64 *)&li->pname_list, cnt); |
| } |
| |
| /** |
| * lpfc_els_rcv_fpin_del - Process an FPIN Delivery Event. |
| * @phba: Pointer to hba object. |
| * @tlv: Pointer to the Delivery Notification Descriptor TLV |
| * |
| * This function processes a Delivery FPIN event by logging a message. |
| **/ |
| static void |
| lpfc_els_rcv_fpin_del(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) |
| { |
| struct fc_fn_deli_desc *del = (struct fc_fn_deli_desc *)tlv; |
| const char *del_rsn_str; |
| u32 del_rsn; |
| __be32 *frame; |
| |
| del_rsn = be16_to_cpu(del->deli_reason_code); |
| del_rsn_str = lpfc_get_fpin_deli_event_nm(del_rsn); |
| |
| /* Skip over desc_tag/desc_len header to payload */ |
| frame = (__be32 *)(del + 1); |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
| "4681 FPIN Delivery %s (x%x) " |
| "Detecting PN x%016llx Attached PN x%016llx " |
| "DiscHdr0 x%08x " |
| "DiscHdr1 x%08x DiscHdr2 x%08x DiscHdr3 x%08x " |
| "DiscHdr4 x%08x DiscHdr5 x%08x\n", |
| del_rsn_str, del_rsn, |
| be64_to_cpu(del->detecting_wwpn), |
| be64_to_cpu(del->attached_wwpn), |
| be32_to_cpu(frame[0]), |
| be32_to_cpu(frame[1]), |
| be32_to_cpu(frame[2]), |
| be32_to_cpu(frame[3]), |
| be32_to_cpu(frame[4]), |
| be32_to_cpu(frame[5])); |
| } |
| |
| /** |
| * lpfc_els_rcv_fpin_peer_cgn - Process a FPIN Peer Congestion Event. |
| * @phba: Pointer to hba object. |
| * @tlv: Pointer to the Peer Congestion Notification Descriptor TLV |
| * |
| * This function processes a Peer Congestion FPIN event by logging a message. |
| **/ |
| static void |
| lpfc_els_rcv_fpin_peer_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) |
| { |
| struct fc_fn_peer_congn_desc *pc = (struct fc_fn_peer_congn_desc *)tlv; |
| const char *pc_evt_str; |
| u32 pc_evt, cnt; |
| |
| pc_evt = be16_to_cpu(pc->event_type); |
| pc_evt_str = lpfc_get_fpin_congn_event_nm(pc_evt); |
| cnt = be32_to_cpu(pc->pname_count); |
| |
| /* Capture FPIN frequency */ |
| phba->cgn_fpin_frequency = be32_to_cpu(pc->event_period); |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_ELS, |
| "4684 FPIN Peer Congestion %s (x%x) " |
| "Duration %d mSecs " |
| "Detecting PN x%016llx Attached PN x%016llx " |
| "Impacted Port Cnt %d\n", |
| pc_evt_str, pc_evt, |
| be32_to_cpu(pc->event_period), |
| be64_to_cpu(pc->detecting_wwpn), |
| be64_to_cpu(pc->attached_wwpn), |
| cnt); |
| |
| lpfc_display_fpin_wwpn(phba, (__be64 *)&pc->pname_list, cnt); |
| } |
| |
| /** |
| * lpfc_els_rcv_fpin_cgn - Process an FPIN Congestion notification |
| * @phba: Pointer to hba object. |
| * @tlv: Pointer to the Congestion Notification Descriptor TLV |
| * |
| * This function processes an FPIN Congestion Notifiction. The notification |
| * could be an Alarm or Warning. This routine feeds that data into driver's |
| * running congestion algorithm. It also processes the FPIN by |
| * logging a message. It returns 1 to indicate deliver this message |
| * to the upper layer or 0 to indicate don't deliver it. |
| **/ |
| static int |
| lpfc_els_rcv_fpin_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv) |
| { |
| struct lpfc_cgn_info *cp; |
| struct fc_fn_congn_desc *cgn = (struct fc_fn_congn_desc *)tlv; |
| const char *cgn_evt_str; |
| u32 cgn_evt; |
| const char *cgn_sev_str; |
| u32 cgn_sev; |
| uint16_t value; |
| u32 crc; |
| bool nm_log = false; |
| int rc = 1; |
| |
| cgn_evt = be16_to_cpu(cgn->event_type); |
| cgn_evt_str = lpfc_get_fpin_congn_event_nm(cgn_evt); |
| cgn_sev = cgn->severity; |
| cgn_sev_str = lpfc_get_fpin_congn_severity_nm(cgn_sev); |
| |
| /* The driver only takes action on a Credit Stall or Oversubscription |
| * event type to engage the IO algorithm. The driver prints an |
| * unmaskable message only for Lost Credit and Credit Stall. |
| * TODO: Still need to have definition of host action on clear, |
| * lost credit and device specific event types. |
| */ |
| switch (cgn_evt) { |
| case FPIN_CONGN_LOST_CREDIT: |
| nm_log = true; |
| break; |
| case FPIN_CONGN_CREDIT_STALL: |
| nm_log = true; |
| fallthrough; |
| case FPIN_CONGN_OVERSUBSCRIPTION: |
| if (cgn_evt == FPIN_CONGN_OVERSUBSCRIPTION) |
| nm_log = false; |
| switch (cgn_sev) { |
| case FPIN_CONGN_SEVERITY_ERROR: |
| /* Take action here for an Alarm event */ |
| if (phba->cmf_active_mode != LPFC_CFG_OFF) { |
| if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) { |
| /* Track of alarm cnt for SYNC_WQE */ |
| atomic_inc(&phba->cgn_sync_alarm_cnt); |
| } |
| /* Track alarm cnt for cgn_info regardless |
| * of whether CMF is configured for Signals |
| * or FPINs. |
| */ |
| atomic_inc(&phba->cgn_fabric_alarm_cnt); |
| goto cleanup; |
| } |
| break; |
| case FPIN_CONGN_SEVERITY_WARNING: |
| /* Take action here for a Warning event */ |
| if (phba->cmf_active_mode != LPFC_CFG_OFF) { |
| if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) { |
| /* Track of warning cnt for SYNC_WQE */ |
| atomic_inc(&phba->cgn_sync_warn_cnt); |
| } |
| /* Track warning cnt and freq for cgn_info |
| * regardless of whether CMF is configured for |
| * Signals or FPINs. |
| */ |
| atomic_inc(&phba->cgn_fabric_warn_cnt); |
| cleanup: |
| /* Save frequency in ms */ |
| phba->cgn_fpin_frequency = |
| be32_to_cpu(cgn->event_period); |
| value = phba->cgn_fpin_frequency; |
| if (phba->cgn_i) { |
| cp = (struct lpfc_cgn_info *) |
| phba->cgn_i->virt; |
| cp->cgn_alarm_freq = |
| cpu_to_le16(value); |
| cp->cgn_warn_freq = |
| cpu_to_le16(value); |
| crc = lpfc_cgn_calc_crc32 |
| (cp, |
| LPFC_CGN_INFO_SZ, |
| LPFC_CGN_CRC32_SEED); |
| cp->cgn_info_crc = cpu_to_le32(crc); |
| } |
| |
| /* Don't deliver to upper layer since |
| * driver took action on this tlv. |
| */ |
| rc = 0; |
| } |
| break; |
| } |
| break; |
| } |
| |
| /* Change the log level to unmaskable for the following event types. */ |
| lpfc_printf_log(phba, (nm_log ? KERN_WARNING : KERN_INFO), |
| LOG_CGN_MGMT | LOG_ELS, |
| "4683 FPIN CONGESTION %s type %s (x%x) Event " |
| "Duration %d mSecs\n", |
| cgn_sev_str, cgn_evt_str, cgn_evt, |
| be32_to_cpu(cgn->event_period)); |
| return rc; |
| } |
| |
| void |
| lpfc_els_rcv_fpin(struct lpfc_vport *vport, void *p, u32 fpin_length) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct fc_els_fpin *fpin = (struct fc_els_fpin *)p; |
| struct fc_tlv_desc *tlv, *first_tlv, *current_tlv; |
| const char *dtag_nm; |
| int desc_cnt = 0, bytes_remain, cnt; |
| u32 dtag, deliver = 0; |
| int len; |
| |
| /* FPINs handled only if we are in the right discovery state */ |
| if (vport->port_state < LPFC_DISC_AUTH) |
| return; |
| |
| /* make sure there is the full fpin header */ |
| if (fpin_length < sizeof(struct fc_els_fpin)) |
| return; |
| |
| /* Sanity check descriptor length. The desc_len value does not |
| * include space for the ELS command and the desc_len fields. |
| */ |
| len = be32_to_cpu(fpin->desc_len); |
| if (fpin_length < len + sizeof(struct fc_els_fpin)) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, |
| "4671 Bad ELS FPIN length %d: %d\n", |
| len, fpin_length); |
| return; |
| } |
| |
| tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0]; |
| first_tlv = tlv; |
| bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc); |
| bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len)); |
| |
| /* process each descriptor separately */ |
| while (bytes_remain >= FC_TLV_DESC_HDR_SZ && |
| bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) { |
| dtag = be32_to_cpu(tlv->desc_tag); |
| switch (dtag) { |
| case ELS_DTAG_LNK_INTEGRITY: |
| lpfc_els_rcv_fpin_li(phba, tlv); |
| deliver = 1; |
| break; |
| case ELS_DTAG_DELIVERY: |
| lpfc_els_rcv_fpin_del(phba, tlv); |
| deliver = 1; |
| break; |
| case ELS_DTAG_PEER_CONGEST: |
| lpfc_els_rcv_fpin_peer_cgn(phba, tlv); |
| deliver = 1; |
| break; |
| case ELS_DTAG_CONGESTION: |
| deliver = lpfc_els_rcv_fpin_cgn(phba, tlv); |
| break; |
| default: |
| dtag_nm = lpfc_get_tlv_dtag_nm(dtag); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, |
| "4678 unknown FPIN descriptor[%d]: " |
| "tag x%x (%s)\n", |
| desc_cnt, dtag, dtag_nm); |
| |
| /* If descriptor is bad, drop the rest of the data */ |
| return; |
| } |
| lpfc_cgn_update_stat(phba, dtag); |
| cnt = be32_to_cpu(tlv->desc_len); |
| |
| /* Sanity check descriptor length. The desc_len value does not |
| * include space for the desc_tag and the desc_len fields. |
| */ |
| len -= (cnt + sizeof(struct fc_tlv_desc)); |
| if (len < 0) { |
| dtag_nm = lpfc_get_tlv_dtag_nm(dtag); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT, |
| "4672 Bad FPIN descriptor TLV length " |
| "%d: %d %d %s\n", |
| cnt, len, fpin_length, dtag_nm); |
| return; |
| } |
| |
| current_tlv = tlv; |
| bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv); |
| tlv = fc_tlv_next_desc(tlv); |
| |
| /* Format payload such that the FPIN delivered to the |
| * upper layer is a single descriptor FPIN. |
| */ |
| if (desc_cnt) |
| memcpy(first_tlv, current_tlv, |
| (cnt + sizeof(struct fc_els_fpin))); |
| |
| /* Adjust the length so that it only reflects a |
| * single descriptor FPIN. |
| */ |
| fpin_length = cnt + sizeof(struct fc_els_fpin); |
| fpin->desc_len = cpu_to_be32(fpin_length); |
| fpin_length += sizeof(struct fc_els_fpin); /* the entire FPIN */ |
| |
| /* Send every descriptor individually to the upper layer */ |
| if (deliver) |
| fc_host_fpin_rcv(lpfc_shost_from_vport(vport), |
| fpin_length, (char *)fpin, 0); |
| desc_cnt++; |
| } |
| } |
| |
| /** |
| * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
| * @phba: pointer to lpfc hba data structure. |
| * @pring: pointer to a SLI ring. |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @elsiocb: pointer to lpfc els command iocb data structure. |
| * |
| * This routine is used for processing the IOCB associated with a unsolicited |
| * event. It first determines whether there is an existing ndlp that matches |
| * the DID from the unsolicited IOCB. If not, it will create a new one with |
| * the DID from the unsolicited IOCB. The ELS command from the unsolicited |
| * IOCB is then used to invoke the proper routine and to set up proper state |
| * of the discovery state machine. |
| **/ |
| static void |
| lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
| { |
| struct lpfc_nodelist *ndlp; |
| struct ls_rjt stat; |
| u32 *payload, payload_len; |
| u32 cmd = 0, did = 0, newnode, status = 0; |
| uint8_t rjt_exp, rjt_err = 0, init_link = 0; |
| struct lpfc_wcqe_complete *wcqe_cmpl = NULL; |
| LPFC_MBOXQ_t *mbox; |
| |
| if (!vport || !elsiocb->cmd_dmabuf) |
| goto dropit; |
| |
| newnode = 0; |
| wcqe_cmpl = &elsiocb->wcqe_cmpl; |
| payload = elsiocb->cmd_dmabuf->virt; |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| payload_len = wcqe_cmpl->total_data_placed; |
| else |
| payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len; |
| status = get_job_ulpstatus(phba, elsiocb); |
| cmd = *payload; |
| if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
| lpfc_sli3_post_buffer(phba, pring, 1); |
| |
| did = get_job_els_rsp64_did(phba, elsiocb); |
| if (status) { |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV Unsol ELS: status:x%x/x%x did:x%x", |
| status, get_job_word4(phba, elsiocb), did); |
| goto dropit; |
| } |
| |
| /* Check to see if link went down during discovery */ |
| if (lpfc_els_chk_latt(vport)) |
| goto dropit; |
| |
| /* Ignore traffic received during vport shutdown. */ |
| if (test_bit(FC_UNLOADING, &vport->load_flag)) |
| goto dropit; |
| |
| /* If NPort discovery is delayed drop incoming ELS */ |
| if (test_bit(FC_DISC_DELAYED, &vport->fc_flag) && |
| cmd != ELS_CMD_PLOGI) |
| goto dropit; |
| |
| ndlp = lpfc_findnode_did(vport, did); |
| if (!ndlp) { |
| /* Cannot find existing Fabric ndlp, so allocate a new one */ |
| ndlp = lpfc_nlp_init(vport, did); |
| if (!ndlp) |
| goto dropit; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
| newnode = 1; |
| if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
| ndlp->nlp_type |= NLP_FABRIC; |
| } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
| newnode = 1; |
| } |
| |
| phba->fc_stat.elsRcvFrame++; |
| |
| /* |
| * Do not process any unsolicited ELS commands |
| * if the ndlp is in DEV_LOSS |
| */ |
| spin_lock_irq(&ndlp->lock); |
| if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) { |
| spin_unlock_irq(&ndlp->lock); |
| if (newnode) |
| lpfc_nlp_put(ndlp); |
| goto dropit; |
| } |
| spin_unlock_irq(&ndlp->lock); |
| |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) |
| goto dropit; |
| elsiocb->vport = vport; |
| |
| if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { |
| cmd &= ELS_CMD_MASK; |
| } |
| /* ELS command <elsCmd> received from NPORT <did> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0112 ELS command x%x received from NPORT x%x " |
| "refcnt %d Data: x%x x%lx x%x x%x\n", |
| cmd, did, kref_read(&ndlp->kref), vport->port_state, |
| vport->fc_flag, vport->fc_myDID, vport->fc_prevDID); |
| |
| /* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */ |
| if ((vport->port_state < LPFC_FABRIC_CFG_LINK) && |
| (cmd != ELS_CMD_FLOGI) && |
| !((cmd == ELS_CMD_PLOGI) && test_bit(FC_PT2PT, &vport->fc_flag))) { |
| rjt_err = LSRJT_LOGICAL_BSY; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| goto lsrjt; |
| } |
| |
| switch (cmd) { |
| case ELS_CMD_PLOGI: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV PLOGI: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvPLOGI++; |
| ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| test_bit(FC_PT2PT, &phba->pport->fc_flag)) { |
| vport->fc_prevDID = vport->fc_myDID; |
| /* Our DID needs to be updated before registering |
| * the vfi. This is done in lpfc_rcv_plogi but |
| * that is called after the reg_vfi. |
| */ |
| vport->fc_myDID = |
| bf_get(els_rsp64_sid, |
| &elsiocb->wqe.xmit_els_rsp); |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "3312 Remote port assigned DID x%x " |
| "%x\n", vport->fc_myDID, |
| vport->fc_prevDID); |
| } |
| |
| lpfc_send_els_event(vport, ndlp, payload); |
| |
| /* If Nport discovery is delayed, reject PLOGIs */ |
| if (test_bit(FC_DISC_DELAYED, &vport->fc_flag)) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| break; |
| } |
| |
| if (vport->port_state < LPFC_DISC_AUTH) { |
| if (!test_bit(FC_PT2PT, &phba->pport->fc_flag) || |
| test_bit(FC_PT2PT_PLOGI, &phba->pport->fc_flag)) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| break; |
| } |
| } |
| |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; |
| spin_unlock_irq(&ndlp->lock); |
| |
| lpfc_disc_state_machine(vport, ndlp, elsiocb, |
| NLP_EVT_RCV_PLOGI); |
| |
| break; |
| case ELS_CMD_FLOGI: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV FLOGI: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvFLOGI++; |
| |
| /* If the driver believes fabric discovery is done and is ready, |
| * bounce the link. There is some descrepancy. |
| */ |
| if (vport->port_state >= LPFC_LOCAL_CFG_LINK && |
| test_bit(FC_PT2PT, &vport->fc_flag) && |
| vport->rcv_flogi_cnt >= 1) { |
| rjt_err = LSRJT_LOGICAL_BSY; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| init_link++; |
| goto lsrjt; |
| } |
| |
| lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
| /* retain node if our response is deferred */ |
| if (phba->defer_flogi_acc.flag) |
| break; |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_LOGO: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV LOGO: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvLOGO++; |
| lpfc_send_els_event(vport, ndlp, payload); |
| if (vport->port_state < LPFC_DISC_AUTH) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| break; |
| } |
| lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_PRLO: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV PRLO: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvPRLO++; |
| lpfc_send_els_event(vport, ndlp, payload); |
| if (vport->port_state < LPFC_DISC_AUTH) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| break; |
| } |
| lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
| break; |
| case ELS_CMD_LCB: |
| phba->fc_stat.elsRcvLCB++; |
| lpfc_els_rcv_lcb(vport, elsiocb, ndlp); |
| break; |
| case ELS_CMD_RDP: |
| phba->fc_stat.elsRcvRDP++; |
| lpfc_els_rcv_rdp(vport, elsiocb, ndlp); |
| break; |
| case ELS_CMD_RSCN: |
| phba->fc_stat.elsRcvRSCN++; |
| lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_ADISC: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV ADISC: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| lpfc_send_els_event(vport, ndlp, payload); |
| phba->fc_stat.elsRcvADISC++; |
| if (vport->port_state < LPFC_DISC_AUTH) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| break; |
| } |
| lpfc_disc_state_machine(vport, ndlp, elsiocb, |
| NLP_EVT_RCV_ADISC); |
| break; |
| case ELS_CMD_PDISC: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV PDISC: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvPDISC++; |
| if (vport->port_state < LPFC_DISC_AUTH) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| break; |
| } |
| lpfc_disc_state_machine(vport, ndlp, elsiocb, |
| NLP_EVT_RCV_PDISC); |
| break; |
| case ELS_CMD_FARPR: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV FARPR: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvFARPR++; |
| lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
| break; |
| case ELS_CMD_FARP: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV FARP: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvFARP++; |
| lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
| break; |
| case ELS_CMD_FAN: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV FAN: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvFAN++; |
| lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
| break; |
| case ELS_CMD_PRLI: |
| case ELS_CMD_NVMEPRLI: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV PRLI: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvPRLI++; |
| if ((vport->port_state < LPFC_DISC_AUTH) && |
| test_bit(FC_FABRIC, &vport->fc_flag)) { |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| break; |
| } |
| lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
| break; |
| case ELS_CMD_LIRR: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV LIRR: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvLIRR++; |
| lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_RLS: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RLS: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvRLS++; |
| lpfc_els_rcv_rls(vport, elsiocb, ndlp); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_RPL: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RPL: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvRPL++; |
| lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_RNID: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RNID: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvRNID++; |
| lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_RTV: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RTV: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| phba->fc_stat.elsRcvRTV++; |
| lpfc_els_rcv_rtv(vport, elsiocb, ndlp); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_RRQ: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV RRQ: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvRRQ++; |
| lpfc_els_rcv_rrq(vport, elsiocb, ndlp); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_ECHO: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV ECHO: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| phba->fc_stat.elsRcvECHO++; |
| lpfc_els_rcv_echo(vport, elsiocb, ndlp); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| case ELS_CMD_REC: |
| /* receive this due to exchange closed */ |
| rjt_err = LSRJT_UNABLE_TPC; |
| rjt_exp = LSEXP_INVALID_OX_RX; |
| break; |
| case ELS_CMD_FPIN: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV FPIN: did:x%x/ste:x%x flg:x%x", |
| did, vport->port_state, ndlp->nlp_flag); |
| |
| lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload, |
| payload_len); |
| |
| /* There are no replies, so no rjt codes */ |
| break; |
| case ELS_CMD_EDC: |
| lpfc_els_rcv_edc(vport, elsiocb, ndlp); |
| break; |
| case ELS_CMD_RDF: |
| phba->fc_stat.elsRcvRDF++; |
| /* Accept RDF only from fabric controller */ |
| if (did != Fabric_Cntl_DID) { |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS, |
| "1115 Received RDF from invalid DID " |
| "x%x\n", did); |
| rjt_err = LSRJT_PROTOCOL_ERR; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| goto lsrjt; |
| } |
| |
| lpfc_els_rcv_rdf(vport, elsiocb, ndlp); |
| break; |
| default: |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
| "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", |
| cmd, did, vport->port_state); |
| |
| /* Unsupported ELS command, reject */ |
| rjt_err = LSRJT_CMD_UNSUPPORTED; |
| rjt_exp = LSEXP_NOTHING_MORE; |
| |
| /* Unknown ELS command <elsCmd> received from NPORT <did> */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
| "0115 Unknown ELS command x%x " |
| "received from NPORT x%x\n", cmd, did); |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| break; |
| } |
| |
| lsrjt: |
| /* check if need to LS_RJT received ELS cmd */ |
| if (rjt_err) { |
| memset(&stat, 0, sizeof(stat)); |
| stat.un.b.lsRjtRsnCode = rjt_err; |
| stat.un.b.lsRjtRsnCodeExp = rjt_exp; |
| lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
| NULL); |
| /* Remove the reference from above for new nodes. */ |
| if (newnode) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| } |
| |
| /* Release the reference on this elsiocb, not the ndlp. */ |
| lpfc_nlp_put(elsiocb->ndlp); |
| elsiocb->ndlp = NULL; |
| |
| /* Special case. Driver received an unsolicited command that |
| * unsupportable given the driver's current state. Reset the |
| * link and start over. |
| */ |
| if (init_link) { |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) |
| return; |
| lpfc_linkdown(phba); |
| lpfc_init_link(phba, mbox, |
| phba->cfg_topology, |
| phba->cfg_link_speed); |
| mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
| mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| mbox->vport = vport; |
| if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == |
| MBX_NOT_FINISHED) |
| mempool_free(mbox, phba->mbox_mem_pool); |
| } |
| |
| return; |
| |
| dropit: |
| if (vport && !test_bit(FC_UNLOADING, &vport->load_flag)) |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0111 Dropping received ELS cmd " |
| "Data: x%x x%x x%x x%x\n", |
| cmd, status, get_job_word4(phba, elsiocb), did); |
| |
| phba->fc_stat.elsRcvDrop++; |
| } |
| |
| /** |
| * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
| * @phba: pointer to lpfc hba data structure. |
| * @pring: pointer to a SLI ring. |
| * @elsiocb: pointer to lpfc els iocb data structure. |
| * |
| * This routine is used to process an unsolicited event received from a SLI |
| * (Service Level Interface) ring. The actual processing of the data buffer |
| * associated with the unsolicited event is done by invoking the routine |
| * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the |
| * SLI ring on which the unsolicited event was received. |
| **/ |
| void |
| lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| struct lpfc_iocbq *elsiocb) |
| { |
| struct lpfc_vport *vport = elsiocb->vport; |
| u32 ulp_command, status, parameter, bde_count = 0; |
| IOCB_t *icmd; |
| struct lpfc_wcqe_complete *wcqe_cmpl = NULL; |
| struct lpfc_dmabuf *bdeBuf1 = elsiocb->cmd_dmabuf; |
| struct lpfc_dmabuf *bdeBuf2 = elsiocb->bpl_dmabuf; |
| dma_addr_t paddr; |
| |
| elsiocb->cmd_dmabuf = NULL; |
| elsiocb->rsp_dmabuf = NULL; |
| elsiocb->bpl_dmabuf = NULL; |
| |
| wcqe_cmpl = &elsiocb->wcqe_cmpl; |
| ulp_command = get_job_cmnd(phba, elsiocb); |
| status = get_job_ulpstatus(phba, elsiocb); |
| parameter = get_job_word4(phba, elsiocb); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| bde_count = wcqe_cmpl->word3; |
| else |
| bde_count = elsiocb->iocb.ulpBdeCount; |
| |
| if (status == IOSTAT_NEED_BUFFER) { |
| lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); |
| } else if (status == IOSTAT_LOCAL_REJECT && |
| (parameter & IOERR_PARAM_MASK) == |
| IOERR_RCV_BUFFER_WAITING) { |
| phba->fc_stat.NoRcvBuf++; |
| /* Not enough posted buffers; Try posting more buffers */ |
| if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
| lpfc_sli3_post_buffer(phba, pring, 0); |
| return; |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV3) { |
| icmd = &elsiocb->iocb; |
| if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
| (ulp_command == CMD_IOCB_RCV_ELS64_CX || |
| ulp_command == CMD_IOCB_RCV_SEQ64_CX)) { |
| if (icmd->unsli3.rcvsli3.vpi == 0xffff) |
| vport = phba->pport; |
| else |
| vport = lpfc_find_vport_by_vpid(phba, |
| icmd->unsli3.rcvsli3.vpi); |
| } |
| } |
| |
| /* If there are no BDEs associated |
| * with this IOCB, there is nothing to do. |
| */ |
| if (bde_count == 0) |
| return; |
| |
| /* Account for SLI2 or SLI3 and later unsolicited buffering */ |
| if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| elsiocb->cmd_dmabuf = bdeBuf1; |
| if (bde_count == 2) |
| elsiocb->bpl_dmabuf = bdeBuf2; |
| } else { |
| icmd = &elsiocb->iocb; |
| paddr = getPaddr(icmd->un.cont64[0].addrHigh, |
| icmd->un.cont64[0].addrLow); |
| elsiocb->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, |
| paddr); |
| if (bde_count == 2) { |
| paddr = getPaddr(icmd->un.cont64[1].addrHigh, |
| icmd->un.cont64[1].addrLow); |
| elsiocb->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba, |
| pring, |
| paddr); |
| } |
| } |
| |
| lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
| /* |
| * The different unsolicited event handlers would tell us |
| * if they are done with "mp" by setting cmd_dmabuf to NULL. |
| */ |
| if (elsiocb->cmd_dmabuf) { |
| lpfc_in_buf_free(phba, elsiocb->cmd_dmabuf); |
| elsiocb->cmd_dmabuf = NULL; |
| } |
| |
| if (elsiocb->bpl_dmabuf) { |
| lpfc_in_buf_free(phba, elsiocb->bpl_dmabuf); |
| elsiocb->bpl_dmabuf = NULL; |
| } |
| |
| } |
| |
| static void |
| lpfc_start_fdmi(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| /* If this is the first time, allocate an ndlp and initialize |
| * it. Otherwise, make sure the node is enabled and then do the |
| * login. |
| */ |
| ndlp = lpfc_findnode_did(vport, FDMI_DID); |
| if (!ndlp) { |
| ndlp = lpfc_nlp_init(vport, FDMI_DID); |
| if (ndlp) { |
| ndlp->nlp_type |= NLP_FABRIC; |
| } else { |
| return; |
| } |
| } |
| |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
| lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
| } |
| |
| /** |
| * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
| * @phba: pointer to lpfc hba data structure. |
| * @vport: pointer to a virtual N_Port data structure. |
| * |
| * This routine issues a Port Login (PLOGI) to the Name Server with |
| * State Change Request (SCR) for a @vport. This routine will create an |
| * ndlp for the Name Server associated to the @vport if such node does |
| * not already exist. The PLOGI to Name Server is issued by invoking the |
| * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface |
| * (FDMI) is configured to the @vport, a FDMI node will be created and |
| * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. |
| **/ |
| void |
| lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| /* |
| * If lpfc_delay_discovery parameter is set and the clean address |
| * bit is cleared and fc fabric parameters chenged, delay FC NPort |
| * discovery. |
| */ |
| if (test_bit(FC_DISC_DELAYED, &vport->fc_flag)) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "3334 Delay fc port discovery for %d secs\n", |
| phba->fc_ratov); |
| mod_timer(&vport->delayed_disc_tmo, |
| jiffies + msecs_to_jiffies(1000 * phba->fc_ratov)); |
| return; |
| } |
| |
| ndlp = lpfc_findnode_did(vport, NameServer_DID); |
| if (!ndlp) { |
| ndlp = lpfc_nlp_init(vport, NameServer_DID); |
| if (!ndlp) { |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| lpfc_disc_start(vport); |
| return; |
| } |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0251 NameServer login: no memory\n"); |
| return; |
| } |
| } |
| |
| ndlp->nlp_type |= NLP_FABRIC; |
| |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
| |
| if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0252 Cannot issue NameServer login\n"); |
| return; |
| } |
| |
| if ((phba->cfg_enable_SmartSAN || |
| phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT) && |
| test_bit(FC_ALLOW_FDMI, &vport->load_flag)) |
| lpfc_start_fdmi(vport); |
| } |
| |
| /** |
| * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
| * @phba: pointer to lpfc hba data structure. |
| * @pmb: pointer to the driver internal queue element for mailbox command. |
| * |
| * This routine is the completion callback function to register new vport |
| * mailbox command. If the new vport mailbox command completes successfully, |
| * the fabric registration login shall be performed on physical port (the |
| * new vport created is actually a physical port, with VPI 0) or the port |
| * login to Name Server for State Change Request (SCR) will be performed |
| * on virtual port (real virtual port, with VPI greater than 0). |
| **/ |
| static void |
| lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_nodelist *ndlp = pmb->ctx_ndlp; |
| MAILBOX_t *mb = &pmb->u.mb; |
| int rc; |
| |
| clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); |
| |
| if (mb->mbxStatus) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0915 Register VPI failed : Status: x%x" |
| " upd bit: x%x \n", mb->mbxStatus, |
| mb->un.varRegVpi.upd); |
| if (phba->sli_rev == LPFC_SLI_REV4 && |
| mb->un.varRegVpi.upd) |
| goto mbox_err_exit ; |
| |
| switch (mb->mbxStatus) { |
| case 0x11: /* unsupported feature */ |
| case 0x9603: /* max_vpi exceeded */ |
| case 0x9602: /* Link event since CLEAR_LA */ |
| /* giving up on vport registration */ |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| clear_bit(FC_FABRIC, &vport->fc_flag); |
| clear_bit(FC_PUBLIC_LOOP, &vport->fc_flag); |
| lpfc_can_disctmo(vport); |
| break; |
| /* If reg_vpi fail with invalid VPI status, re-init VPI */ |
| case 0x20: |
| set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); |
| lpfc_init_vpi(phba, pmb, vport->vpi); |
| pmb->vport = vport; |
| pmb->mbox_cmpl = lpfc_init_vpi_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, pmb, |
| MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "2732 Failed to issue INIT_VPI" |
| " mailbox command\n"); |
| } else { |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| fallthrough; |
| default: |
| /* Try to recover from this error */ |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_unreg_all_rpis(vport); |
| lpfc_mbx_unreg_vpi(vport); |
| set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); |
| if (mb->mbxStatus == MBX_NOT_FINISHED) |
| break; |
| if ((vport->port_type == LPFC_PHYSICAL_PORT) && |
| !test_bit(FC_LOGO_RCVD_DID_CHNG, &vport->fc_flag)) { |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_issue_init_vfi(vport); |
| else |
| lpfc_initial_flogi(vport); |
| } else { |
| lpfc_initial_fdisc(vport); |
| } |
| break; |
| } |
| } else { |
| spin_lock_irq(shost->host_lock); |
| vport->vpi_state |= LPFC_VPI_REGISTERED; |
| spin_unlock_irq(shost->host_lock); |
| if (vport == phba->pport) { |
| if (phba->sli_rev < LPFC_SLI_REV4) |
| lpfc_issue_fabric_reglogin(vport); |
| else { |
| /* |
| * If the physical port is instantiated using |
| * FDISC, do not start vport discovery. |
| */ |
| if (vport->port_state != LPFC_FDISC) |
| lpfc_start_fdiscs(phba); |
| lpfc_do_scr_ns_plogi(phba, vport); |
| } |
| } else { |
| lpfc_do_scr_ns_plogi(phba, vport); |
| } |
| } |
| mbox_err_exit: |
| /* Now, we decrement the ndlp reference count held for this |
| * callback function |
| */ |
| lpfc_nlp_put(ndlp); |
| |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| /* reinitialize the VMID datastructure before returning. |
| * this is specifically for vport |
| */ |
| if (lpfc_is_vmid_enabled(phba)) |
| lpfc_reinit_vmid(vport); |
| vport->vmid_flag = vport->phba->pport->vmid_flag; |
| |
| return; |
| } |
| |
| /** |
| * lpfc_register_new_vport - Register a new vport with a HBA |
| * @phba: pointer to lpfc hba data structure. |
| * @vport: pointer to a host virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine registers the @vport as a new virtual port with a HBA. |
| * It is done through a registering vpi mailbox command. |
| **/ |
| void |
| lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
| struct lpfc_nodelist *ndlp) |
| { |
| LPFC_MBOXQ_t *mbox; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (mbox) { |
| lpfc_reg_vpi(vport, mbox); |
| mbox->vport = vport; |
| mbox->ctx_ndlp = lpfc_nlp_get(ndlp); |
| if (!mbox->ctx_ndlp) { |
| mempool_free(mbox, phba->mbox_mem_pool); |
| goto mbox_err_exit; |
| } |
| |
| mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; |
| if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
| == MBX_NOT_FINISHED) { |
| /* mailbox command not success, decrement ndlp |
| * reference count for this command |
| */ |
| lpfc_nlp_put(ndlp); |
| mempool_free(mbox, phba->mbox_mem_pool); |
| |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0253 Register VPI: Can't send mbox\n"); |
| goto mbox_err_exit; |
| } |
| } else { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0254 Register VPI: no memory\n"); |
| goto mbox_err_exit; |
| } |
| return; |
| |
| mbox_err_exit: |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| clear_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); |
| return; |
| } |
| |
| /** |
| * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine cancels the retry delay timers to all the vports. |
| **/ |
| void |
| lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| struct lpfc_nodelist *ndlp; |
| uint32_t link_state; |
| int i; |
| |
| /* Treat this failure as linkdown for all vports */ |
| link_state = phba->link_state; |
| lpfc_linkdown(phba); |
| phba->link_state = link_state; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| |
| if (vports) { |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| ndlp = lpfc_findnode_did(vports[i], Fabric_DID); |
| if (ndlp) |
| lpfc_cancel_retry_delay_tmo(vports[i], ndlp); |
| lpfc_els_flush_cmd(vports[i]); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| } |
| |
| /** |
| * lpfc_retry_pport_discovery - Start timer to retry FLOGI. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine abort all pending discovery commands and |
| * start a timer to retry FLOGI for the physical port |
| * discovery. |
| **/ |
| void |
| lpfc_retry_pport_discovery(struct lpfc_hba *phba) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| /* Cancel the all vports retry delay retry timers */ |
| lpfc_cancel_all_vport_retry_delay_timer(phba); |
| |
| /* If fabric require FLOGI, then re-instantiate physical login */ |
| ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
| if (!ndlp) |
| return; |
| |
| mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_DELAY_TMO; |
| spin_unlock_irq(&ndlp->lock); |
| ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; |
| phba->pport->port_state = LPFC_FLOGI; |
| return; |
| } |
| |
| /** |
| * lpfc_fabric_login_reqd - Check if FLOGI required. |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to FDISC command iocb. |
| * @rspiocb: pointer to FDISC response iocb. |
| * |
| * This routine checks if a FLOGI is reguired for FDISC |
| * to succeed. |
| **/ |
| static int |
| lpfc_fabric_login_reqd(struct lpfc_hba *phba, |
| struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| u32 ulp_status = get_job_ulpstatus(phba, rspiocb); |
| u32 ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| if (ulp_status != IOSTAT_FABRIC_RJT || |
| ulp_word4 != RJT_LOGIN_REQUIRED) |
| return 0; |
| else |
| return 1; |
| } |
| |
| /** |
| * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion callback function to a Fabric Discover |
| * (FDISC) ELS command. Since all the FDISC ELS commands are issued |
| * single threaded, each FDISC completion callback function will reset |
| * the discovery timer for all vports such that the timers will not get |
| * unnecessary timeout. The function checks the FDISC IOCB status. If error |
| * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the |
| * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID |
| * assigned to the vport has been changed with the completion of the FDISC |
| * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) |
| * are unregistered from the HBA, and then the lpfc_register_new_vport() |
| * routine is invoked to register new vport with the HBA. Otherwise, the |
| * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name |
| * Server for State Change Request (SCR). |
| **/ |
| static void |
| lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| struct lpfc_nodelist *np; |
| struct lpfc_nodelist *next_np; |
| struct lpfc_iocbq *piocb; |
| struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp; |
| struct serv_parm *sp; |
| uint8_t fabric_param_changed; |
| u32 ulp_status, ulp_word4; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "0123 FDISC completes. x%x/x%x prevDID: x%x\n", |
| ulp_status, ulp_word4, |
| vport->fc_prevDID); |
| /* Since all FDISCs are being single threaded, we |
| * must reset the discovery timer for ALL vports |
| * waiting to send FDISC when one completes. |
| */ |
| list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { |
| lpfc_set_disctmo(piocb->vport); |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "FDISC cmpl: status:x%x/x%x prevdid:x%x", |
| ulp_status, ulp_word4, vport->fc_prevDID); |
| |
| if (ulp_status) { |
| |
| if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) { |
| lpfc_retry_pport_discovery(phba); |
| goto out; |
| } |
| |
| /* Check for retry */ |
| if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
| goto out; |
| /* Warn FDISC status */ |
| lpfc_vlog_msg(vport, KERN_WARNING, LOG_ELS, |
| "0126 FDISC cmpl status: x%x/x%x)\n", |
| ulp_status, ulp_word4); |
| goto fdisc_failed; |
| } |
| |
| lpfc_check_nlp_post_devloss(vport, ndlp); |
| |
| clear_bit(FC_VPORT_CVL_RCVD, &vport->fc_flag); |
| clear_bit(FC_VPORT_LOGO_RCVD, &vport->fc_flag); |
| set_bit(FC_FABRIC, &vport->fc_flag); |
| if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP) |
| set_bit(FC_PUBLIC_LOOP, &vport->fc_flag); |
| |
| vport->fc_myDID = ulp_word4 & Mask_DID; |
| lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); |
| prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); |
| if (!prsp) |
| goto out; |
| if (!lpfc_is_els_acc_rsp(prsp)) |
| goto out; |
| |
| sp = prsp->virt + sizeof(uint32_t); |
| fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp); |
| memcpy(&vport->fabric_portname, &sp->portName, |
| sizeof(struct lpfc_name)); |
| memcpy(&vport->fabric_nodename, &sp->nodeName, |
| sizeof(struct lpfc_name)); |
| if (fabric_param_changed && |
| !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { |
| /* If our NportID changed, we need to ensure all |
| * remaining NPORTs get unreg_login'ed so we can |
| * issue unreg_vpi. |
| */ |
| list_for_each_entry_safe(np, next_np, |
| &vport->fc_nodes, nlp_listp) { |
| if ((np->nlp_state != NLP_STE_NPR_NODE) || |
| !(np->nlp_flag & NLP_NPR_ADISC)) |
| continue; |
| spin_lock_irq(&ndlp->lock); |
| np->nlp_flag &= ~NLP_NPR_ADISC; |
| spin_unlock_irq(&ndlp->lock); |
| lpfc_unreg_rpi(vport, np); |
| } |
| lpfc_cleanup_pending_mbox(vport); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_unreg_all_rpis(vport); |
| |
| lpfc_mbx_unreg_vpi(vport); |
| set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| set_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag); |
| else |
| set_bit(FC_LOGO_RCVD_DID_CHNG, &vport->fc_flag); |
| } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
| !test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) { |
| /* |
| * Driver needs to re-reg VPI in order for f/w |
| * to update the MAC address. |
| */ |
| lpfc_register_new_vport(phba, vport, ndlp); |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| goto out; |
| } |
| |
| if (test_bit(FC_VPORT_NEEDS_INIT_VPI, &vport->fc_flag)) |
| lpfc_issue_init_vpi(vport); |
| else if (test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag)) |
| lpfc_register_new_vport(phba, vport, ndlp); |
| else |
| lpfc_do_scr_ns_plogi(phba, vport); |
| |
| /* The FDISC completed successfully. Move the fabric ndlp to |
| * UNMAPPED state and register with the transport. |
| */ |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| goto out; |
| |
| fdisc_failed: |
| if (vport->fc_vport && |
| (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)) |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| /* Cancel discovery timer */ |
| lpfc_can_disctmo(vport); |
| out: |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| /** |
| * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
| * @vport: pointer to a virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * @retry: number of retries to the command IOCB. |
| * |
| * This routine prepares and issues a Fabric Discover (FDISC) IOCB to |
| * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() |
| * routine to issue the IOCB, which makes sure only one outstanding fabric |
| * IOCB will be sent off HBA at any given time. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the FDISC ELS command. |
| * |
| * Return code |
| * 0 - Successfully issued fdisc iocb command |
| * 1 - Failed to issue fdisc iocb command |
| **/ |
| static int |
| lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| uint8_t retry) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| IOCB_t *icmd; |
| union lpfc_wqe128 *wqe = NULL; |
| struct lpfc_iocbq *elsiocb; |
| struct serv_parm *sp; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| int did = ndlp->nlp_DID; |
| int rc; |
| |
| vport->port_state = LPFC_FDISC; |
| vport->fc_myDID = 0; |
| cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
| ELS_CMD_FDISC); |
| if (!elsiocb) { |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0255 Issue FDISC: no IOCB\n"); |
| return 1; |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| wqe = &elsiocb->wqe; |
| bf_set(els_req64_sid, &wqe->els_req, 0); |
| bf_set(els_req64_sp, &wqe->els_req, 1); |
| } else { |
| icmd = &elsiocb->iocb; |
| icmd->un.elsreq64.myID = 0; |
| icmd->un.elsreq64.fl = 1; |
| icmd->ulpCt_h = 1; |
| icmd->ulpCt_l = 0; |
| } |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; |
| pcmd += sizeof(uint32_t); /* CSP Word 1 */ |
| memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); |
| sp = (struct serv_parm *) pcmd; |
| /* Setup CSPs accordingly for Fabric */ |
| sp->cmn.e_d_tov = 0; |
| sp->cmn.w2.r_a_tov = 0; |
| sp->cmn.virtual_fabric_support = 0; |
| sp->cls1.classValid = 0; |
| sp->cls2.seqDelivery = 1; |
| sp->cls3.seqDelivery = 1; |
| |
| pcmd += sizeof(uint32_t); /* CSP Word 2 */ |
| pcmd += sizeof(uint32_t); /* CSP Word 3 */ |
| pcmd += sizeof(uint32_t); /* CSP Word 4 */ |
| pcmd += sizeof(uint32_t); /* Port Name */ |
| memcpy(pcmd, &vport->fc_portname, 8); |
| pcmd += sizeof(uint32_t); /* Node Name */ |
| pcmd += sizeof(uint32_t); /* Node Name */ |
| memcpy(pcmd, &vport->fc_nodename, 8); |
| sp->cmn.valid_vendor_ver_level = 0; |
| memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion)); |
| lpfc_set_disctmo(vport); |
| |
| phba->fc_stat.elsXmitFDISC++; |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_fdisc; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue FDISC: did:x%x", |
| did, 0, 0); |
| |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) |
| goto err_out; |
| |
| rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
| if (rc == IOCB_ERROR) { |
| lpfc_nlp_put(ndlp); |
| goto err_out; |
| } |
| |
| lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); |
| return 0; |
| |
| err_out: |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0256 Issue FDISC: Cannot send IOCB\n"); |
| return 1; |
| } |
| |
| /** |
| * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the completion callback function to the issuing of a LOGO |
| * ELS command off a vport. It frees the command IOCB and then decrement the |
| * reference count held on ndlp for this completion function, indicating that |
| * the reference to the ndlp is no long needed. Note that the |
| * lpfc_els_free_iocb() routine decrements the ndlp reference held for this |
| * callback function and an additional explicit ndlp reference decrementation |
| * will trigger the actual release of the ndlp. |
| **/ |
| static void |
| lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| IOCB_t *irsp; |
| struct lpfc_nodelist *ndlp; |
| u32 ulp_status, ulp_word4, did, tmo; |
| |
| ndlp = cmdiocb->ndlp; |
| |
| ulp_status = get_job_ulpstatus(phba, rspiocb); |
| ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| did = get_job_els_rsp64_did(phba, cmdiocb); |
| tmo = get_wqe_tmo(cmdiocb); |
| } else { |
| irsp = &rspiocb->iocb; |
| did = get_job_els_rsp64_did(phba, rspiocb); |
| tmo = irsp->ulpTimeout; |
| } |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "LOGO npiv cmpl: status:x%x/x%x did:x%x", |
| ulp_status, ulp_word4, did); |
| |
| /* NPIV LOGO completes to NPort <nlp_DID> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
| "2928 NPIV LOGO completes to NPort x%x " |
| "Data: x%x x%x x%x x%x x%x x%x x%x\n", |
| ndlp->nlp_DID, ulp_status, ulp_word4, |
| tmo, vport->num_disc_nodes, |
| kref_read(&ndlp->kref), ndlp->nlp_flag, |
| ndlp->fc4_xpt_flags); |
| |
| if (ulp_status == IOSTAT_SUCCESS) { |
| clear_bit(FC_NDISC_ACTIVE, &vport->fc_flag); |
| clear_bit(FC_FABRIC, &vport->fc_flag); |
| lpfc_can_disctmo(vport); |
| } |
| |
| if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) { |
| /* Wake up lpfc_vport_delete if waiting...*/ |
| if (ndlp->logo_waitq) |
| wake_up(ndlp->logo_waitq); |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~(NLP_ISSUE_LOGO | NLP_LOGO_SND); |
| ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; |
| spin_unlock_irq(&ndlp->lock); |
| } |
| |
| /* Safe to release resources now. */ |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| /** |
| * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
| * @vport: pointer to a virtual N_Port data structure. |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine issues a LOGO ELS command to an @ndlp off a @vport. |
| * |
| * Note that the ndlp reference count will be incremented by 1 for holding the |
| * ndlp and the reference to ndlp will be stored into the ndlp field of |
| * the IOCB for the completion callback function to the LOGO ELS command. |
| * |
| * Return codes |
| * 0 - Successfully issued logo off the @vport |
| * 1 - Failed to issue logo off the @vport |
| **/ |
| int |
| lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| int rc = 0; |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *elsiocb; |
| uint8_t *pcmd; |
| uint16_t cmdsize; |
| |
| cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); |
| elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, |
| ELS_CMD_LOGO); |
| if (!elsiocb) |
| return 1; |
| |
| pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt; |
| *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; |
| pcmd += sizeof(uint32_t); |
| |
| /* Fill in LOGO payload */ |
| *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
| pcmd += sizeof(uint32_t); |
| memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Issue LOGO npiv did:x%x flg:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, 0); |
| |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_npiv_logo; |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_LOGO_SND; |
| spin_unlock_irq(&ndlp->lock); |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| goto err; |
| } |
| |
| rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
| if (rc == IOCB_ERROR) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| goto err; |
| } |
| return 0; |
| |
| err: |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_LOGO_SND; |
| spin_unlock_irq(&ndlp->lock); |
| return 1; |
| } |
| |
| /** |
| * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
| * @t: timer context used to obtain the lpfc hba. |
| * |
| * This routine is invoked by the fabric iocb block timer after |
| * timeout. It posts the fabric iocb block timeout event by setting the |
| * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes |
| * lpfc_worker_wake_up() routine to wake up the worker thread. It is for |
| * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the |
| * posted event WORKER_FABRIC_BLOCK_TMO. |
| **/ |
| void |
| lpfc_fabric_block_timeout(struct timer_list *t) |
| { |
| struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer); |
| unsigned long iflags; |
| uint32_t tmo_posted; |
| |
| spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
| tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; |
| if (!tmo_posted) |
| phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; |
| spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); |
| |
| if (!tmo_posted) |
| lpfc_worker_wake_up(phba); |
| return; |
| } |
| |
| /** |
| * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine issues one fabric iocb from the driver internal list to |
| * the HBA. It first checks whether it's ready to issue one fabric iocb to |
| * the HBA (whether there is no outstanding fabric iocb). If so, it shall |
| * remove one pending fabric iocb from the driver internal list and invokes |
| * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. |
| **/ |
| static void |
| lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) |
| { |
| struct lpfc_iocbq *iocb; |
| unsigned long iflags; |
| int ret; |
| |
| repeat: |
| iocb = NULL; |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| /* Post any pending iocb to the SLI layer */ |
| if (atomic_read(&phba->fabric_iocb_count) == 0) { |
| list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), |
| list); |
| if (iocb) |
| /* Increment fabric iocb count to hold the position */ |
| atomic_inc(&phba->fabric_iocb_count); |
| } |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| if (iocb) { |
| iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; |
| iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; |
| iocb->cmd_flag |= LPFC_IO_FABRIC; |
| |
| lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
| "Fabric sched1: ste:x%x", |
| iocb->vport->port_state, 0, 0); |
| |
| ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
| |
| if (ret == IOCB_ERROR) { |
| iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; |
| iocb->fabric_cmd_cmpl = NULL; |
| iocb->cmd_flag &= ~LPFC_IO_FABRIC; |
| set_job_ulpstatus(iocb, IOSTAT_LOCAL_REJECT); |
| iocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED; |
| iocb->cmd_cmpl(phba, iocb, iocb); |
| |
| atomic_dec(&phba->fabric_iocb_count); |
| goto repeat; |
| } |
| } |
| } |
| |
| /** |
| * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine unblocks the issuing fabric iocb command. The function |
| * will clear the fabric iocb block bit and then invoke the routine |
| * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb |
| * from the driver internal fabric iocb list. |
| **/ |
| void |
| lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) |
| { |
| clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); |
| |
| lpfc_resume_fabric_iocbs(phba); |
| return; |
| } |
| |
| /** |
| * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine blocks the issuing fabric iocb for a specified amount of |
| * time (currently 100 ms). This is done by set the fabric iocb block bit |
| * and set up a timeout timer for 100ms. When the block bit is set, no more |
| * fabric iocb will be issued out of the HBA. |
| **/ |
| static void |
| lpfc_block_fabric_iocbs(struct lpfc_hba *phba) |
| { |
| int blocked; |
| |
| blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); |
| /* Start a timer to unblock fabric iocbs after 100ms */ |
| if (!blocked) |
| mod_timer(&phba->fabric_block_timer, |
| jiffies + msecs_to_jiffies(100)); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
| * @phba: pointer to lpfc hba data structure. |
| * @cmdiocb: pointer to lpfc command iocb data structure. |
| * @rspiocb: pointer to lpfc response iocb data structure. |
| * |
| * This routine is the callback function that is put to the fabric iocb's |
| * callback function pointer (iocb->cmd_cmpl). The original iocb's callback |
| * function pointer has been stored in iocb->fabric_cmd_cmpl. This callback |
| * function first restores and invokes the original iocb's callback function |
| * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next |
| * fabric bound iocb from the driver internal fabric iocb list onto the wire. |
| **/ |
| static void |
| lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct ls_rjt stat; |
| u32 ulp_status = get_job_ulpstatus(phba, rspiocb); |
| u32 ulp_word4 = get_job_word4(phba, rspiocb); |
| |
| WARN_ON((cmdiocb->cmd_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC); |
| |
| switch (ulp_status) { |
| case IOSTAT_NPORT_RJT: |
| case IOSTAT_FABRIC_RJT: |
| if (ulp_word4 & RJT_UNAVAIL_TEMP) |
| lpfc_block_fabric_iocbs(phba); |
| break; |
| |
| case IOSTAT_NPORT_BSY: |
| case IOSTAT_FABRIC_BSY: |
| lpfc_block_fabric_iocbs(phba); |
| break; |
| |
| case IOSTAT_LS_RJT: |
| stat.un.ls_rjt_error_be = |
| cpu_to_be32(ulp_word4); |
| if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || |
| (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) |
| lpfc_block_fabric_iocbs(phba); |
| break; |
| } |
| |
| BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0); |
| |
| cmdiocb->cmd_cmpl = cmdiocb->fabric_cmd_cmpl; |
| cmdiocb->fabric_cmd_cmpl = NULL; |
| cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC; |
| cmdiocb->cmd_cmpl(phba, cmdiocb, rspiocb); |
| |
| atomic_dec(&phba->fabric_iocb_count); |
| if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { |
| /* Post any pending iocbs to HBA */ |
| lpfc_resume_fabric_iocbs(phba); |
| } |
| } |
| |
| /** |
| * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
| * @phba: pointer to lpfc hba data structure. |
| * @iocb: pointer to lpfc command iocb data structure. |
| * |
| * This routine is used as the top-level API for issuing a fabric iocb command |
| * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver |
| * function makes sure that only one fabric bound iocb will be outstanding at |
| * any given time. As such, this function will first check to see whether there |
| * is already an outstanding fabric iocb on the wire. If so, it will put the |
| * newly issued iocb onto the driver internal fabric iocb list, waiting to be |
| * issued later. Otherwise, it will issue the iocb on the wire and update the |
| * fabric iocb count it indicate that there is one fabric iocb on the wire. |
| * |
| * Note, this implementation has a potential sending out fabric IOCBs out of |
| * order. The problem is caused by the construction of the "ready" boolen does |
| * not include the condition that the internal fabric IOCB list is empty. As |
| * such, it is possible a fabric IOCB issued by this routine might be "jump" |
| * ahead of the fabric IOCBs in the internal list. |
| * |
| * Return code |
| * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully |
| * IOCB_ERROR - failed to issue fabric iocb |
| **/ |
| static int |
| lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
| { |
| unsigned long iflags; |
| int ready; |
| int ret; |
| |
| BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1); |
| |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| ready = atomic_read(&phba->fabric_iocb_count) == 0 && |
| !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); |
| |
| if (ready) |
| /* Increment fabric iocb count to hold the position */ |
| atomic_inc(&phba->fabric_iocb_count); |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| if (ready) { |
| iocb->fabric_cmd_cmpl = iocb->cmd_cmpl; |
| iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb; |
| iocb->cmd_flag |= LPFC_IO_FABRIC; |
| |
| lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
| "Fabric sched2: ste:x%x", |
| iocb->vport->port_state, 0, 0); |
| |
| ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
| |
| if (ret == IOCB_ERROR) { |
| iocb->cmd_cmpl = iocb->fabric_cmd_cmpl; |
| iocb->fabric_cmd_cmpl = NULL; |
| iocb->cmd_flag &= ~LPFC_IO_FABRIC; |
| atomic_dec(&phba->fabric_iocb_count); |
| } |
| } else { |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| list_add_tail(&iocb->list, &phba->fabric_iocb_list); |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| ret = IOCB_SUCCESS; |
| } |
| return ret; |
| } |
| |
| /** |
| * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
| * @vport: pointer to a virtual N_Port data structure. |
| * |
| * This routine aborts all the IOCBs associated with a @vport from the |
| * driver internal fabric IOCB list. The list contains fabric IOCBs to be |
| * issued to the ELS IOCB ring. This abort function walks the fabric IOCB |
| * list, removes each IOCB associated with the @vport off the list, set the |
| * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function |
| * associated with the IOCB. |
| **/ |
| static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
| { |
| LIST_HEAD(completions); |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_iocbq *tmp_iocb, *piocb; |
| |
| spin_lock_irq(&phba->hbalock); |
| list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, |
| list) { |
| |
| if (piocb->vport != vport) |
| continue; |
| |
| list_move_tail(&piocb->list, &completions); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, |
| IOERR_SLI_ABORTED); |
| } |
| |
| /** |
| * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
| * @ndlp: pointer to a node-list data structure. |
| * |
| * This routine aborts all the IOCBs associated with an @ndlp from the |
| * driver internal fabric IOCB list. The list contains fabric IOCBs to be |
| * issued to the ELS IOCB ring. This abort function walks the fabric IOCB |
| * list, removes each IOCB associated with the @ndlp off the list, set the |
| * status field to IOSTAT_LOCAL_REJECT, and invokes the callback function |
| * associated with the IOCB. |
| **/ |
| void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
| { |
| LIST_HEAD(completions); |
| struct lpfc_hba *phba = ndlp->phba; |
| struct lpfc_iocbq *tmp_iocb, *piocb; |
| struct lpfc_sli_ring *pring; |
| |
| pring = lpfc_phba_elsring(phba); |
| |
| if (unlikely(!pring)) |
| return; |
| |
| spin_lock_irq(&phba->hbalock); |
| list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, |
| list) { |
| if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { |
| |
| list_move_tail(&piocb->list, &completions); |
| } |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, |
| IOERR_SLI_ABORTED); |
| } |
| |
| /** |
| * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine aborts all the IOCBs currently on the driver internal |
| * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS |
| * IOCB ring. This function takes the entire IOCB list off the fabric IOCB |
| * list, removes IOCBs off the list, set the status field to |
| * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with |
| * the IOCB. |
| **/ |
| void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
| { |
| LIST_HEAD(completions); |
| |
| spin_lock_irq(&phba->hbalock); |
| list_splice_init(&phba->fabric_iocb_list, &completions); |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, |
| IOERR_SLI_ABORTED); |
| } |
| |
| /** |
| * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport |
| * @vport: pointer to lpfc vport data structure. |
| * |
| * This routine is invoked by the vport cleanup for deletions and the cleanup |
| * for an ndlp on removal. |
| **/ |
| void |
| lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
| struct lpfc_nodelist *ndlp = NULL; |
| unsigned long iflag = 0; |
| |
| spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); |
| list_for_each_entry_safe(sglq_entry, sglq_next, |
| &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { |
| if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) { |
| lpfc_nlp_put(sglq_entry->ndlp); |
| ndlp = sglq_entry->ndlp; |
| sglq_entry->ndlp = NULL; |
| |
| /* If the xri on the abts_els_sgl list is for the Fport |
| * node and the vport is unloading, the xri aborted wcqe |
| * likely isn't coming back. Just release the sgl. |
| */ |
| if (test_bit(FC_UNLOADING, &vport->load_flag) && |
| ndlp->nlp_DID == Fabric_DID) { |
| list_del(&sglq_entry->list); |
| sglq_entry->state = SGL_FREED; |
| list_add_tail(&sglq_entry->list, |
| &phba->sli4_hba.lpfc_els_sgl_list); |
| } |
| } |
| } |
| spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort |
| * @phba: pointer to lpfc hba data structure. |
| * @axri: pointer to the els xri abort wcqe structure. |
| * |
| * This routine is invoked by the worker thread to process a SLI4 slow-path |
| * ELS aborted xri. |
| **/ |
| void |
| lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, |
| struct sli4_wcqe_xri_aborted *axri) |
| { |
| uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); |
| uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
| uint16_t lxri = 0; |
| |
| struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; |
| unsigned long iflag = 0; |
| struct lpfc_nodelist *ndlp; |
| struct lpfc_sli_ring *pring; |
| |
| pring = lpfc_phba_elsring(phba); |
| |
| spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag); |
| list_for_each_entry_safe(sglq_entry, sglq_next, |
| &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { |
| if (sglq_entry->sli4_xritag == xri) { |
| list_del(&sglq_entry->list); |
| ndlp = sglq_entry->ndlp; |
| sglq_entry->ndlp = NULL; |
| list_add_tail(&sglq_entry->list, |
| &phba->sli4_hba.lpfc_els_sgl_list); |
| sglq_entry->state = SGL_FREED; |
| spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, |
| iflag); |
| |
| if (ndlp) { |
| lpfc_set_rrq_active(phba, ndlp, |
| sglq_entry->sli4_lxritag, |
| rxid, 1); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| /* Check if TXQ queue needs to be serviced */ |
| if (pring && !list_empty(&pring->txq)) |
| lpfc_worker_wake_up(phba); |
| return; |
| } |
| } |
| spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag); |
| lxri = lpfc_sli4_xri_inrange(phba, xri); |
| if (lxri == NO_XRI) |
| return; |
| |
| spin_lock_irqsave(&phba->hbalock, iflag); |
| sglq_entry = __lpfc_get_active_sglq(phba, lxri); |
| if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) { |
| spin_unlock_irqrestore(&phba->hbalock, iflag); |
| return; |
| } |
| sglq_entry->state = SGL_XRI_ABORTED; |
| spin_unlock_irqrestore(&phba->hbalock, iflag); |
| return; |
| } |
| |
| /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req. |
| * @vport: pointer to virtual port object. |
| * @ndlp: nodelist pointer for the impacted node. |
| * |
| * The driver calls this routine in response to an SLI4 XRI ABORT CQE |
| * or an SLI3 ASYNC_STATUS_CN event from the port. For either event, |
| * the driver is required to send a LOGO to the remote node before it |
| * attempts to recover its login to the remote node. |
| */ |
| void |
| lpfc_sli_abts_recover_port(struct lpfc_vport *vport, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct Scsi_Host *shost; |
| struct lpfc_hba *phba; |
| unsigned long flags = 0; |
| |
| shost = lpfc_shost_from_vport(vport); |
| phba = vport->phba; |
| if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) { |
| lpfc_printf_log(phba, KERN_INFO, |
| LOG_SLI, "3093 No rport recovery needed. " |
| "rport in state 0x%x\n", ndlp->nlp_state); |
| return; |
| } |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "3094 Start rport recovery on shost id 0x%x " |
| "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x " |
| "flags 0x%x\n", |
| shost->host_no, ndlp->nlp_DID, |
| vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state, |
| ndlp->nlp_flag); |
| /* |
| * The rport is not responding. Remove the FCP-2 flag to prevent |
| * an ADISC in the follow-up recovery code. |
| */ |
| spin_lock_irqsave(&ndlp->lock, flags); |
| ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; |
| ndlp->nlp_flag |= NLP_ISSUE_LOGO; |
| spin_unlock_irqrestore(&ndlp->lock, flags); |
| lpfc_unreg_rpi(vport, ndlp); |
| } |
| |
| static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport) |
| { |
| bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE); |
| } |
| |
| static void |
| lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max) |
| { |
| u32 i; |
| |
| if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE)) |
| return; |
| |
| for (i = min; i <= max; i++) |
| set_bit(i, vport->vmid_priority_range); |
| } |
| |
| static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid) |
| { |
| set_bit(ctcl_vmid, vport->vmid_priority_range); |
| } |
| |
| u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport) |
| { |
| u32 i; |
| |
| i = find_first_bit(vport->vmid_priority_range, |
| LPFC_VMID_MAX_PRIORITY_RANGE); |
| |
| if (i == LPFC_VMID_MAX_PRIORITY_RANGE) |
| return 0; |
| |
| clear_bit(i, vport->vmid_priority_range); |
| return i; |
| } |
| |
| #define MAX_PRIORITY_DESC 255 |
| |
| static void |
| lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = cmdiocb->vport; |
| struct priority_range_desc *desc; |
| struct lpfc_dmabuf *prsp = NULL; |
| struct lpfc_vmid_priority_range *vmid_range = NULL; |
| u32 *data; |
| struct lpfc_dmabuf *dmabuf = cmdiocb->cmd_dmabuf; |
| u32 ulp_status = get_job_ulpstatus(phba, rspiocb); |
| u32 ulp_word4 = get_job_word4(phba, rspiocb); |
| u8 *pcmd, max_desc; |
| u32 len, i; |
| struct lpfc_nodelist *ndlp = cmdiocb->ndlp; |
| |
| prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); |
| if (!prsp) |
| goto out; |
| |
| pcmd = prsp->virt; |
| data = (u32 *)pcmd; |
| if (data[0] == ELS_CMD_LS_RJT) { |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, |
| "3277 QFPA LS_RJT x%x x%x\n", |
| data[0], data[1]); |
| goto out; |
| } |
| if (ulp_status) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI, |
| "6529 QFPA failed with status x%x x%x\n", |
| ulp_status, ulp_word4); |
| goto out; |
| } |
| |
| if (!vport->qfpa_res) { |
| max_desc = FCELSSIZE / sizeof(*vport->qfpa_res); |
| vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res), |
| GFP_KERNEL); |
| if (!vport->qfpa_res) |
| goto out; |
| } |
| |
| len = *((u32 *)(pcmd + 4)); |
| len = be32_to_cpu(len); |
| memcpy(vport->qfpa_res, pcmd, len + 8); |
| len = len / LPFC_PRIORITY_RANGE_DESC_SIZE; |
| |
| desc = (struct priority_range_desc *)(pcmd + 8); |
| vmid_range = vport->vmid_priority.vmid_range; |
| if (!vmid_range) { |
| vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range), |
| GFP_KERNEL); |
| if (!vmid_range) { |
| kfree(vport->qfpa_res); |
| goto out; |
| } |
| vport->vmid_priority.vmid_range = vmid_range; |
| } |
| vport->vmid_priority.num_descriptors = len; |
| |
| for (i = 0; i < len; i++, vmid_range++, desc++) { |
| lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, |
| "6539 vmid values low=%d, high=%d, qos=%d, " |
| "local ve id=%d\n", desc->lo_range, |
| desc->hi_range, desc->qos_priority, |
| desc->local_ve_id); |
| |
| vmid_range->low = desc->lo_range << 1; |
| if (desc->local_ve_id == QFPA_ODD_ONLY) |
| vmid_range->low++; |
| if (desc->qos_priority) |
| vport->vmid_flag |= LPFC_VMID_QOS_ENABLED; |
| vmid_range->qos = desc->qos_priority; |
| |
| vmid_range->high = desc->hi_range << 1; |
| if ((desc->local_ve_id == QFPA_ODD_ONLY) || |
| (desc->local_ve_id == QFPA_EVEN_ODD)) |
| vmid_range->high++; |
| } |
| lpfc_init_cs_ctl_bitmap(vport); |
| for (i = 0; i < vport->vmid_priority.num_descriptors; i++) { |
| lpfc_vmid_set_cs_ctl_range(vport, |
| vport->vmid_priority.vmid_range[i].low, |
| vport->vmid_priority.vmid_range[i].high); |
| } |
| |
| vport->vmid_flag |= LPFC_VMID_QFPA_CMPL; |
| out: |
| lpfc_els_free_iocb(phba, cmdiocb); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| int lpfc_issue_els_qfpa(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_nodelist *ndlp; |
| struct lpfc_iocbq *elsiocb; |
| u8 *pcmd; |
| int ret; |
| |
| ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
| if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) |
| return -ENXIO; |
| |
| elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp, |
| ndlp->nlp_DID, ELS_CMD_QFPA); |
| if (!elsiocb) |
| return -ENOMEM; |
| |
| pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; |
| |
| *((u32 *)(pcmd)) = ELS_CMD_QFPA; |
| pcmd += 4; |
| |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_qfpa; |
| |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(vport->phba, elsiocb); |
| return -ENXIO; |
| } |
| |
| ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2); |
| if (ret != IOCB_SUCCESS) { |
| lpfc_els_free_iocb(phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| return -EIO; |
| } |
| vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED; |
| return 0; |
| } |
| |
| int |
| lpfc_vmid_uvem(struct lpfc_vport *vport, |
| struct lpfc_vmid *vmid, bool instantiated) |
| { |
| struct lpfc_vem_id_desc *vem_id_desc; |
| struct lpfc_nodelist *ndlp; |
| struct lpfc_iocbq *elsiocb; |
| struct instantiated_ve_desc *inst_desc; |
| struct lpfc_vmid_context *vmid_context; |
| u8 *pcmd; |
| u32 *len; |
| int ret = 0; |
| |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) |
| return -ENXIO; |
| |
| vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL); |
| if (!vmid_context) |
| return -ENOMEM; |
| elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2, |
| ndlp, Fabric_DID, ELS_CMD_UVEM); |
| if (!elsiocb) |
| goto out; |
| |
| lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS, |
| "3427 Host vmid %s %d\n", |
| vmid->host_vmid, instantiated); |
| vmid_context->vmp = vmid; |
| vmid_context->nlp = ndlp; |
| vmid_context->instantiated = instantiated; |
| elsiocb->vmid_tag.vmid_context = vmid_context; |
| pcmd = (u8 *)elsiocb->cmd_dmabuf->virt; |
| |
| if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0, |
| sizeof(vport->lpfc_vmid_host_uuid))) |
| memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid, |
| sizeof(vport->lpfc_vmid_host_uuid)); |
| |
| *((u32 *)(pcmd)) = ELS_CMD_UVEM; |
| len = (u32 *)(pcmd + 4); |
| *len = cpu_to_be32(LPFC_UVEM_SIZE - 8); |
| |
| vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8); |
| vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG); |
| vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE); |
| memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid, |
| sizeof(vem_id_desc->vem_id)); |
| |
| inst_desc = (struct instantiated_ve_desc *)(pcmd + 32); |
| inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); |
| inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE); |
| memcpy(inst_desc->global_vem_id, vmid->host_vmid, |
| sizeof(inst_desc->global_vem_id)); |
| |
| bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID); |
| bf_set(lpfc_instantiated_local_id, inst_desc, |
| vmid->un.cs_ctl_vmid); |
| if (instantiated) { |
| inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG); |
| } else { |
| inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG); |
| lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid); |
| } |
| inst_desc->word6 = cpu_to_be32(inst_desc->word6); |
| |
| elsiocb->cmd_cmpl = lpfc_cmpl_els_uvem; |
| |
| elsiocb->ndlp = lpfc_nlp_get(ndlp); |
| if (!elsiocb->ndlp) { |
| lpfc_els_free_iocb(vport->phba, elsiocb); |
| goto out; |
| } |
| |
| ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0); |
| if (ret != IOCB_SUCCESS) { |
| lpfc_els_free_iocb(vport->phba, elsiocb); |
| lpfc_nlp_put(ndlp); |
| goto out; |
| } |
| |
| return 0; |
| out: |
| kfree(vmid_context); |
| return -EIO; |
| } |
| |
| static void |
| lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb, |
| struct lpfc_iocbq *rspiocb) |
| { |
| struct lpfc_vport *vport = icmdiocb->vport; |
| struct lpfc_dmabuf *prsp = NULL; |
| struct lpfc_vmid_context *vmid_context = |
| icmdiocb->vmid_tag.vmid_context; |
| struct lpfc_nodelist *ndlp = icmdiocb->ndlp; |
| u8 *pcmd; |
| u32 *data; |
| u32 ulp_status = get_job_ulpstatus(phba, rspiocb); |
| u32 ulp_word4 = get_job_word4(phba, rspiocb); |
| struct lpfc_dmabuf *dmabuf = icmdiocb->cmd_dmabuf; |
| struct lpfc_vmid *vmid; |
| |
| vmid = vmid_context->vmp; |
| if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) |
| ndlp = NULL; |
| |
| prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list); |
| if (!prsp) |
| goto out; |
| pcmd = prsp->virt; |
| data = (u32 *)pcmd; |
| if (data[0] == ELS_CMD_LS_RJT) { |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, |
| "4532 UVEM LS_RJT %x %x\n", data[0], data[1]); |
| goto out; |
| } |
| if (ulp_status) { |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI, |
| "4533 UVEM error status %x: %x\n", |
| ulp_status, ulp_word4); |
| goto out; |
| } |
| spin_lock(&phba->hbalock); |
| /* Set IN USE flag */ |
| vport->vmid_flag |= LPFC_VMID_IN_USE; |
| phba->pport->vmid_flag |= LPFC_VMID_IN_USE; |
| spin_unlock(&phba->hbalock); |
| |
| if (vmid_context->instantiated) { |
| write_lock(&vport->vmid_lock); |
| vmid->flag |= LPFC_VMID_REGISTERED; |
| vmid->flag &= ~LPFC_VMID_REQ_REGISTER; |
| write_unlock(&vport->vmid_lock); |
| } |
| |
| out: |
| kfree(vmid_context); |
| lpfc_els_free_iocb(phba, icmdiocb); |
| lpfc_nlp_put(ndlp); |
| } |
