| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2017-2022 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. * |
| *******************************************************************/ |
| |
| #include <linux/blkdev.h> |
| #include <linux/delay.h> |
| #include <linux/slab.h> |
| #include <linux/pci.h> |
| #include <linux/kthread.h> |
| #include <linux/interrupt.h> |
| #include <linux/lockdep.h> |
| #include <linux/utsname.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_transport_fc.h> |
| #include <scsi/fc/fc_fs.h> |
| |
| #include "lpfc_hw4.h" |
| #include "lpfc_hw.h" |
| #include "lpfc_nl.h" |
| #include "lpfc_disc.h" |
| #include "lpfc_sli.h" |
| #include "lpfc_sli4.h" |
| #include "lpfc.h" |
| #include "lpfc_scsi.h" |
| #include "lpfc_nvme.h" |
| #include "lpfc_logmsg.h" |
| #include "lpfc_crtn.h" |
| #include "lpfc_vport.h" |
| #include "lpfc_debugfs.h" |
| |
| /* AlpaArray for assignment of scsid for scan-down and bind_method */ |
| static uint8_t lpfcAlpaArray[] = { |
| 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, |
| 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, |
| 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, |
| 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, |
| 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, |
| 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, |
| 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, |
| 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, |
| 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, |
| 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, |
| 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, |
| 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, |
| 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 |
| }; |
| |
| static void lpfc_disc_timeout_handler(struct lpfc_vport *); |
| static void lpfc_disc_flush_list(struct lpfc_vport *vport); |
| static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); |
| static int lpfc_fcf_inuse(struct lpfc_hba *); |
| static void lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *); |
| static void lpfc_check_inactive_vmid(struct lpfc_hba *phba); |
| static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba); |
| |
| static int |
| lpfc_valid_xpt_node(struct lpfc_nodelist *ndlp) |
| { |
| if (ndlp->nlp_fc4_type || |
| ndlp->nlp_type & NLP_FABRIC) |
| return 1; |
| return 0; |
| } |
| /* The source of a terminate rport I/O is either a dev_loss_tmo |
| * event or a call to fc_remove_host. While the rport should be |
| * valid during these downcalls, the transport can call twice |
| * in a single event. This routine provides somoe protection |
| * as the NDLP isn't really free, just released to the pool. |
| */ |
| static int |
| lpfc_rport_invalid(struct fc_rport *rport) |
| { |
| struct lpfc_rport_data *rdata; |
| struct lpfc_nodelist *ndlp; |
| |
| if (!rport) { |
| pr_err("**** %s: NULL rport, exit.\n", __func__); |
| return -EINVAL; |
| } |
| |
| rdata = rport->dd_data; |
| if (!rdata) { |
| pr_err("**** %s: NULL dd_data on rport x%px SID x%x\n", |
| __func__, rport, rport->scsi_target_id); |
| return -EINVAL; |
| } |
| |
| ndlp = rdata->pnode; |
| if (!rdata->pnode) { |
| pr_info("**** %s: NULL ndlp on rport x%px SID x%x\n", |
| __func__, rport, rport->scsi_target_id); |
| return -EINVAL; |
| } |
| |
| if (!ndlp->vport) { |
| pr_err("**** %s: Null vport on ndlp x%px, DID x%x rport x%px " |
| "SID x%x\n", __func__, ndlp, ndlp->nlp_DID, rport, |
| rport->scsi_target_id); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| void |
| lpfc_terminate_rport_io(struct fc_rport *rport) |
| { |
| struct lpfc_rport_data *rdata; |
| struct lpfc_nodelist *ndlp; |
| struct lpfc_vport *vport; |
| |
| if (lpfc_rport_invalid(rport)) |
| return; |
| |
| rdata = rport->dd_data; |
| ndlp = rdata->pnode; |
| vport = ndlp->vport; |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, |
| "rport terminate: sid:x%x did:x%x flg:x%x", |
| ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); |
| |
| if (ndlp->nlp_sid != NLP_NO_SID) |
| lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); |
| } |
| |
| /* |
| * This function will be called when dev_loss_tmo fire. |
| */ |
| void |
| lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) |
| { |
| struct lpfc_nodelist *ndlp; |
| struct lpfc_vport *vport; |
| struct lpfc_hba *phba; |
| struct lpfc_work_evt *evtp; |
| unsigned long iflags; |
| |
| ndlp = ((struct lpfc_rport_data *)rport->dd_data)->pnode; |
| if (!ndlp) |
| return; |
| |
| vport = ndlp->vport; |
| phba = vport->phba; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, |
| "rport devlosscb: sid:x%x did:x%x flg:x%x", |
| ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); |
| |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, |
| "3181 dev_loss_callbk x%06x, rport x%px flg x%x " |
| "load_flag x%x refcnt %d state %d xpt x%x\n", |
| ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag, |
| vport->load_flag, kref_read(&ndlp->kref), |
| ndlp->nlp_state, ndlp->fc4_xpt_flags); |
| |
| /* Don't schedule a worker thread event if the vport is going down. |
| * The teardown process cleans up the node via lpfc_drop_node. |
| */ |
| if (vport->load_flag & FC_UNLOADING) { |
| ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL; |
| ndlp->rport = NULL; |
| |
| ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD; |
| /* clear the NLP_XPT_REGD if the node is not registered |
| * with nvme-fc |
| */ |
| if (ndlp->fc4_xpt_flags == NLP_XPT_REGD) |
| ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD; |
| |
| /* Remove the node reference from remote_port_add now. |
| * The driver will not call remote_port_delete. |
| */ |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) |
| return; |
| |
| if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "6789 rport name %llx != node port name %llx", |
| rport->port_name, |
| wwn_to_u64(ndlp->nlp_portname.u.wwn)); |
| |
| evtp = &ndlp->dev_loss_evt; |
| |
| if (!list_empty(&evtp->evt_listp)) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "6790 rport name %llx dev_loss_evt pending\n", |
| rport->port_name); |
| return; |
| } |
| |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| ndlp->nlp_flag |= NLP_IN_DEV_LOSS; |
| |
| /* If there is a PLOGI in progress, and we are in a |
| * NLP_NPR_2B_DISC state, don't turn off the flag. |
| */ |
| if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE) |
| ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
| |
| /* |
| * The backend does not expect any more calls associated with this |
| * rport. Remove the association between rport and ndlp. |
| */ |
| ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD; |
| ((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL; |
| ndlp->rport = NULL; |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| |
| if (phba->worker_thread) { |
| /* We need to hold the node by incrementing the reference |
| * count until this queued work is done |
| */ |
| evtp->evt_arg1 = lpfc_nlp_get(ndlp); |
| |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| if (evtp->evt_arg1) { |
| evtp->evt = LPFC_EVT_DEV_LOSS; |
| list_add_tail(&evtp->evt_listp, &phba->work_list); |
| lpfc_worker_wake_up(phba); |
| } |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| } else { |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, |
| "3188 worker thread is stopped %s x%06x, " |
| " rport x%px flg x%x load_flag x%x refcnt " |
| "%d\n", __func__, ndlp->nlp_DID, |
| ndlp->rport, ndlp->nlp_flag, |
| vport->load_flag, kref_read(&ndlp->kref)); |
| if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) { |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| /* Node is in dev loss. No further transaction. */ |
| ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| } |
| |
| } |
| |
| return; |
| } |
| |
| /** |
| * lpfc_check_inactive_vmid_one - VMID inactivity checker for a vport |
| * @vport: Pointer to vport context object. |
| * |
| * This function checks for idle VMID entries related to a particular vport. If |
| * found unused/idle, free them accordingly. |
| **/ |
| static void lpfc_check_inactive_vmid_one(struct lpfc_vport *vport) |
| { |
| u16 keep; |
| u32 difftime = 0, r, bucket; |
| u64 *lta; |
| int cpu; |
| struct lpfc_vmid *vmp; |
| |
| write_lock(&vport->vmid_lock); |
| |
| if (!vport->cur_vmid_cnt) |
| goto out; |
| |
| /* iterate through the table */ |
| hash_for_each(vport->hash_table, bucket, vmp, hnode) { |
| keep = 0; |
| if (vmp->flag & LPFC_VMID_REGISTERED) { |
| /* check if the particular VMID is in use */ |
| /* for all available per cpu variable */ |
| for_each_possible_cpu(cpu) { |
| /* if last access time is less than timeout */ |
| lta = per_cpu_ptr(vmp->last_io_time, cpu); |
| if (!lta) |
| continue; |
| difftime = (jiffies) - (*lta); |
| if ((vport->vmid_inactivity_timeout * |
| JIFFIES_PER_HR) > difftime) { |
| keep = 1; |
| break; |
| } |
| } |
| |
| /* if none of the cpus have been used by the vm, */ |
| /* remove the entry if already registered */ |
| if (!keep) { |
| /* mark the entry for deregistration */ |
| vmp->flag = LPFC_VMID_DE_REGISTER; |
| write_unlock(&vport->vmid_lock); |
| if (vport->vmid_priority_tagging) |
| r = lpfc_vmid_uvem(vport, vmp, false); |
| else |
| r = lpfc_vmid_cmd(vport, |
| SLI_CTAS_DAPP_IDENT, |
| vmp); |
| |
| /* decrement number of active vms and mark */ |
| /* entry in slot as free */ |
| write_lock(&vport->vmid_lock); |
| if (!r) { |
| struct lpfc_vmid *ht = vmp; |
| |
| vport->cur_vmid_cnt--; |
| ht->flag = LPFC_VMID_SLOT_FREE; |
| free_percpu(ht->last_io_time); |
| ht->last_io_time = NULL; |
| hash_del(&ht->hnode); |
| } |
| } |
| } |
| } |
| out: |
| write_unlock(&vport->vmid_lock); |
| } |
| |
| /** |
| * lpfc_check_inactive_vmid - VMID inactivity checker |
| * @phba: Pointer to hba context object. |
| * |
| * This function is called from the worker thread to determine if an entry in |
| * the VMID table can be released since there was no I/O activity seen from that |
| * particular VM for the specified time. When this happens, the entry in the |
| * table is released and also the resources on the switch cleared. |
| **/ |
| |
| static void lpfc_check_inactive_vmid(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport; |
| struct lpfc_vport **vports; |
| int i; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (!vports) |
| return; |
| |
| for (i = 0; i <= phba->max_vports; i++) { |
| if ((!vports[i]) && (i == 0)) |
| vport = phba->pport; |
| else |
| vport = vports[i]; |
| if (!vport) |
| break; |
| |
| lpfc_check_inactive_vmid_one(vport); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| /** |
| * lpfc_check_nlp_post_devloss - Check to restore ndlp refcnt after devloss |
| * @vport: Pointer to vport object. |
| * @ndlp: Pointer to remote node object. |
| * |
| * If NLP_IN_RECOV_POST_DEV_LOSS flag was set due to outstanding recovery of |
| * node during dev_loss_tmo processing, then this function restores the nlp_put |
| * kref decrement from lpfc_dev_loss_tmo_handler. |
| **/ |
| void |
| lpfc_check_nlp_post_devloss(struct lpfc_vport *vport, |
| struct lpfc_nodelist *ndlp) |
| { |
| unsigned long iflags; |
| |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| if (ndlp->save_flags & NLP_IN_RECOV_POST_DEV_LOSS) { |
| ndlp->save_flags &= ~NLP_IN_RECOV_POST_DEV_LOSS; |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| lpfc_nlp_get(ndlp); |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_NODE, |
| "8438 Devloss timeout reversed on DID x%x " |
| "refcnt %d ndlp %p flag x%x " |
| "port_state = x%x\n", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp, |
| ndlp->nlp_flag, vport->port_state); |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| } |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| } |
| |
| /** |
| * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler |
| * @ndlp: Pointer to remote node object. |
| * |
| * This function is called from the worker thread when devloss timeout timer |
| * expires. For SLI4 host, this routine shall return 1 when at lease one |
| * remote node, including this @ndlp, is still in use of FCF; otherwise, this |
| * routine shall return 0 when there is no remote node is still in use of FCF |
| * when devloss timeout happened to this @ndlp. |
| **/ |
| static int |
| lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_vport *vport; |
| struct lpfc_hba *phba; |
| uint8_t *name; |
| int warn_on = 0; |
| int fcf_inuse = 0; |
| bool recovering = false; |
| struct fc_vport *fc_vport = NULL; |
| unsigned long iflags; |
| |
| vport = ndlp->vport; |
| name = (uint8_t *)&ndlp->nlp_portname; |
| phba = vport->phba; |
| |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| fcf_inuse = lpfc_fcf_inuse(phba); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, |
| "rport devlosstmo:did:x%x type:x%x id:x%x", |
| ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_sid); |
| |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, |
| "3182 %s x%06x, nflag x%x xflags x%x refcnt %d\n", |
| __func__, ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->fc4_xpt_flags, kref_read(&ndlp->kref)); |
| |
| /* If the driver is recovering the rport, ignore devloss. */ |
| if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0284 Devloss timeout Ignored on " |
| "WWPN %x:%x:%x:%x:%x:%x:%x:%x " |
| "NPort x%x\n", |
| *name, *(name+1), *(name+2), *(name+3), |
| *(name+4), *(name+5), *(name+6), *(name+7), |
| ndlp->nlp_DID); |
| return fcf_inuse; |
| } |
| |
| /* Fabric nodes are done. */ |
| if (ndlp->nlp_type & NLP_FABRIC) { |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| /* In massive vport configuration settings, it's possible |
| * dev_loss_tmo fired during node recovery. So, check if |
| * fabric nodes are in discovery states outstanding. |
| */ |
| switch (ndlp->nlp_DID) { |
| case Fabric_DID: |
| fc_vport = vport->fc_vport; |
| if (fc_vport && |
| fc_vport->vport_state == FC_VPORT_INITIALIZING) |
| recovering = true; |
| break; |
| case Fabric_Cntl_DID: |
| if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) |
| recovering = true; |
| break; |
| case FDMI_DID: |
| fallthrough; |
| case NameServer_DID: |
| if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && |
| ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) |
| recovering = true; |
| break; |
| } |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| |
| /* Mark an NLP_IN_RECOV_POST_DEV_LOSS flag to know if reversing |
| * the following lpfc_nlp_put is necessary after fabric node is |
| * recovered. |
| */ |
| if (recovering) { |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_DISCOVERY | LOG_NODE, |
| "8436 Devloss timeout marked on " |
| "DID x%x refcnt %d ndlp %p " |
| "flag x%x port_state = x%x\n", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), |
| ndlp, ndlp->nlp_flag, |
| vport->port_state); |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| ndlp->save_flags |= NLP_IN_RECOV_POST_DEV_LOSS; |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| } else if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { |
| /* Fabric node fully recovered before this dev_loss_tmo |
| * queue work is processed. Thus, ignore the |
| * dev_loss_tmo event. |
| */ |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_DISCOVERY | LOG_NODE, |
| "8437 Devloss timeout ignored on " |
| "DID x%x refcnt %d ndlp %p " |
| "flag x%x port_state = x%x\n", |
| ndlp->nlp_DID, kref_read(&ndlp->kref), |
| ndlp, ndlp->nlp_flag, |
| vport->port_state); |
| return fcf_inuse; |
| } |
| |
| lpfc_nlp_put(ndlp); |
| return fcf_inuse; |
| } |
| |
| if (ndlp->nlp_sid != NLP_NO_SID) { |
| warn_on = 1; |
| lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT); |
| } |
| |
| if (warn_on) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0203 Devloss timeout on " |
| "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " |
| "NPort x%06x Data: x%x x%x x%x refcnt %d\n", |
| *name, *(name+1), *(name+2), *(name+3), |
| *(name+4), *(name+5), *(name+6), *(name+7), |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, ndlp->nlp_rpi, |
| kref_read(&ndlp->kref)); |
| } else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT, |
| "0204 Devloss timeout on " |
| "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " |
| "NPort x%06x Data: x%x x%x x%x\n", |
| *name, *(name+1), *(name+2), *(name+3), |
| *(name+4), *(name+5), *(name+6), *(name+7), |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, ndlp->nlp_rpi); |
| } |
| |
| /* If we are devloss, but we are in the process of rediscovering the |
| * ndlp, don't issue a NLP_EVT_DEVICE_RM event. |
| */ |
| if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE && |
| ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) { |
| return fcf_inuse; |
| } |
| |
| if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) |
| lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); |
| |
| return fcf_inuse; |
| } |
| |
| static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport; |
| struct lpfc_vport **vports; |
| int i; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (!vports) |
| return; |
| |
| for (i = 0; i <= phba->max_vports; i++) { |
| if ((!vports[i]) && (i == 0)) |
| vport = phba->pport; |
| else |
| vport = vports[i]; |
| if (!vport) |
| break; |
| |
| if (vport->vmid_flag & LPFC_VMID_ISSUE_QFPA) { |
| if (!lpfc_issue_els_qfpa(vport)) |
| vport->vmid_flag &= ~LPFC_VMID_ISSUE_QFPA; |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| /** |
| * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler |
| * @phba: Pointer to hba context object. |
| * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. |
| * @nlp_did: remote node identifer with devloss timeout. |
| * |
| * This function is called from the worker thread after invoking devloss |
| * timeout handler and releasing the reference count for the ndlp with |
| * which the devloss timeout was handled for SLI4 host. For the devloss |
| * timeout of the last remote node which had been in use of FCF, when this |
| * routine is invoked, it shall be guaranteed that none of the remote are |
| * in-use of FCF. When devloss timeout to the last remote using the FCF, |
| * if the FIP engine is neither in FCF table scan process nor roundrobin |
| * failover process, the in-use FCF shall be unregistered. If the FIP |
| * engine is in FCF discovery process, the devloss timeout state shall |
| * be set for either the FCF table scan process or roundrobin failover |
| * process to unregister the in-use FCF. |
| **/ |
| static void |
| lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, |
| uint32_t nlp_did) |
| { |
| /* If devloss timeout happened to a remote node when FCF had no |
| * longer been in-use, do nothing. |
| */ |
| if (!fcf_inuse) |
| return; |
| |
| if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { |
| spin_lock_irq(&phba->hbalock); |
| if (phba->fcf.fcf_flag & FCF_DISCOVERY) { |
| if (phba->hba_flag & HBA_DEVLOSS_TMO) { |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| phba->hba_flag |= HBA_DEVLOSS_TMO; |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2847 Last remote node (x%x) using " |
| "FCF devloss tmo\n", nlp_did); |
| } |
| if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2868 Devloss tmo to FCF rediscovery " |
| "in progress\n"); |
| return; |
| } |
| if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2869 Devloss tmo to idle FIP engine, " |
| "unreg in-use FCF and rescan.\n"); |
| /* Unregister in-use FCF and rescan */ |
| lpfc_unregister_fcf_rescan(phba); |
| return; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| if (phba->hba_flag & FCF_TS_INPROG) |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2870 FCF table scan in progress\n"); |
| if (phba->hba_flag & FCF_RR_INPROG) |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2871 FLOGI roundrobin FCF failover " |
| "in progress\n"); |
| } |
| lpfc_unregister_unused_fcf(phba); |
| } |
| |
| /** |
| * lpfc_alloc_fast_evt - Allocates data structure for posting event |
| * @phba: Pointer to hba context object. |
| * |
| * This function is called from the functions which need to post |
| * events from interrupt context. This function allocates data |
| * structure required for posting event. It also keeps track of |
| * number of events pending and prevent event storm when there are |
| * too many events. |
| **/ |
| struct lpfc_fast_path_event * |
| lpfc_alloc_fast_evt(struct lpfc_hba *phba) { |
| struct lpfc_fast_path_event *ret; |
| |
| /* If there are lot of fast event do not exhaust memory due to this */ |
| if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) |
| return NULL; |
| |
| ret = kzalloc(sizeof(struct lpfc_fast_path_event), |
| GFP_ATOMIC); |
| if (ret) { |
| atomic_inc(&phba->fast_event_count); |
| INIT_LIST_HEAD(&ret->work_evt.evt_listp); |
| ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; |
| } |
| return ret; |
| } |
| |
| /** |
| * lpfc_free_fast_evt - Frees event data structure |
| * @phba: Pointer to hba context object. |
| * @evt: Event object which need to be freed. |
| * |
| * This function frees the data structure required for posting |
| * events. |
| **/ |
| void |
| lpfc_free_fast_evt(struct lpfc_hba *phba, |
| struct lpfc_fast_path_event *evt) { |
| |
| atomic_dec(&phba->fast_event_count); |
| kfree(evt); |
| } |
| |
| /** |
| * lpfc_send_fastpath_evt - Posts events generated from fast path |
| * @phba: Pointer to hba context object. |
| * @evtp: Event data structure. |
| * |
| * This function is called from worker thread, when the interrupt |
| * context need to post an event. This function posts the event |
| * to fc transport netlink interface. |
| **/ |
| static void |
| lpfc_send_fastpath_evt(struct lpfc_hba *phba, |
| struct lpfc_work_evt *evtp) |
| { |
| unsigned long evt_category, evt_sub_category; |
| struct lpfc_fast_path_event *fast_evt_data; |
| char *evt_data; |
| uint32_t evt_data_size; |
| struct Scsi_Host *shost; |
| |
| fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, |
| work_evt); |
| |
| evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; |
| evt_sub_category = (unsigned long) fast_evt_data->un. |
| fabric_evt.subcategory; |
| shost = lpfc_shost_from_vport(fast_evt_data->vport); |
| if (evt_category == FC_REG_FABRIC_EVENT) { |
| if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { |
| evt_data = (char *) &fast_evt_data->un.read_check_error; |
| evt_data_size = sizeof(fast_evt_data->un. |
| read_check_error); |
| } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || |
| (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { |
| evt_data = (char *) &fast_evt_data->un.fabric_evt; |
| evt_data_size = sizeof(fast_evt_data->un.fabric_evt); |
| } else { |
| lpfc_free_fast_evt(phba, fast_evt_data); |
| return; |
| } |
| } else if (evt_category == FC_REG_SCSI_EVENT) { |
| switch (evt_sub_category) { |
| case LPFC_EVENT_QFULL: |
| case LPFC_EVENT_DEVBSY: |
| evt_data = (char *) &fast_evt_data->un.scsi_evt; |
| evt_data_size = sizeof(fast_evt_data->un.scsi_evt); |
| break; |
| case LPFC_EVENT_CHECK_COND: |
| evt_data = (char *) &fast_evt_data->un.check_cond_evt; |
| evt_data_size = sizeof(fast_evt_data->un. |
| check_cond_evt); |
| break; |
| case LPFC_EVENT_VARQUEDEPTH: |
| evt_data = (char *) &fast_evt_data->un.queue_depth_evt; |
| evt_data_size = sizeof(fast_evt_data->un. |
| queue_depth_evt); |
| break; |
| default: |
| lpfc_free_fast_evt(phba, fast_evt_data); |
| return; |
| } |
| } else { |
| lpfc_free_fast_evt(phba, fast_evt_data); |
| return; |
| } |
| |
| if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) |
| fc_host_post_vendor_event(shost, |
| fc_get_event_number(), |
| evt_data_size, |
| evt_data, |
| LPFC_NL_VENDOR_ID); |
| |
| lpfc_free_fast_evt(phba, fast_evt_data); |
| return; |
| } |
| |
| static void |
| lpfc_work_list_done(struct lpfc_hba *phba) |
| { |
| struct lpfc_work_evt *evtp = NULL; |
| struct lpfc_nodelist *ndlp; |
| int free_evt; |
| int fcf_inuse; |
| uint32_t nlp_did; |
| bool hba_pci_err; |
| |
| spin_lock_irq(&phba->hbalock); |
| while (!list_empty(&phba->work_list)) { |
| list_remove_head((&phba->work_list), evtp, typeof(*evtp), |
| evt_listp); |
| spin_unlock_irq(&phba->hbalock); |
| hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags); |
| free_evt = 1; |
| switch (evtp->evt) { |
| case LPFC_EVT_ELS_RETRY: |
| ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); |
| if (!hba_pci_err) { |
| lpfc_els_retry_delay_handler(ndlp); |
| free_evt = 0; /* evt is part of ndlp */ |
| } |
| /* decrement the node reference count held |
| * for this queued work |
| */ |
| lpfc_nlp_put(ndlp); |
| break; |
| case LPFC_EVT_DEV_LOSS: |
| ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); |
| fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); |
| free_evt = 0; |
| /* decrement the node reference count held for |
| * this queued work |
| */ |
| nlp_did = ndlp->nlp_DID; |
| lpfc_nlp_put(ndlp); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_post_dev_loss_tmo_handler(phba, |
| fcf_inuse, |
| nlp_did); |
| break; |
| case LPFC_EVT_RECOVER_PORT: |
| ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); |
| if (!hba_pci_err) { |
| lpfc_sli_abts_recover_port(ndlp->vport, ndlp); |
| free_evt = 0; |
| } |
| /* decrement the node reference count held for |
| * this queued work |
| */ |
| lpfc_nlp_put(ndlp); |
| break; |
| case LPFC_EVT_ONLINE: |
| if (phba->link_state < LPFC_LINK_DOWN) |
| *(int *) (evtp->evt_arg1) = lpfc_online(phba); |
| else |
| *(int *) (evtp->evt_arg1) = 0; |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_OFFLINE_PREP: |
| if (phba->link_state >= LPFC_LINK_DOWN) |
| lpfc_offline_prep(phba, LPFC_MBX_WAIT); |
| *(int *)(evtp->evt_arg1) = 0; |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_OFFLINE: |
| lpfc_offline(phba); |
| lpfc_sli_brdrestart(phba); |
| *(int *)(evtp->evt_arg1) = |
| lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); |
| lpfc_unblock_mgmt_io(phba); |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_WARM_START: |
| lpfc_offline(phba); |
| lpfc_reset_barrier(phba); |
| lpfc_sli_brdreset(phba); |
| lpfc_hba_down_post(phba); |
| *(int *)(evtp->evt_arg1) = |
| lpfc_sli_brdready(phba, HS_MBRDY); |
| lpfc_unblock_mgmt_io(phba); |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_KILL: |
| lpfc_offline(phba); |
| *(int *)(evtp->evt_arg1) |
| = (phba->pport->stopped) |
| ? 0 : lpfc_sli_brdkill(phba); |
| lpfc_unblock_mgmt_io(phba); |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_FASTPATH_MGMT_EVT: |
| lpfc_send_fastpath_evt(phba, evtp); |
| free_evt = 0; |
| break; |
| case LPFC_EVT_RESET_HBA: |
| if (!(phba->pport->load_flag & FC_UNLOADING)) |
| lpfc_reset_hba(phba); |
| break; |
| } |
| if (free_evt) |
| kfree(evtp); |
| spin_lock_irq(&phba->hbalock); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| } |
| |
| static void |
| lpfc_work_done(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli_ring *pring; |
| uint32_t ha_copy, status, control, work_port_events; |
| struct lpfc_vport **vports; |
| struct lpfc_vport *vport; |
| int i; |
| bool hba_pci_err; |
| |
| hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags); |
| spin_lock_irq(&phba->hbalock); |
| ha_copy = phba->work_ha; |
| phba->work_ha = 0; |
| spin_unlock_irq(&phba->hbalock); |
| if (hba_pci_err) |
| ha_copy = 0; |
| |
| /* First, try to post the next mailbox command to SLI4 device */ |
| if (phba->pci_dev_grp == LPFC_PCI_DEV_OC && !hba_pci_err) |
| lpfc_sli4_post_async_mbox(phba); |
| |
| if (ha_copy & HA_ERATT) { |
| /* Handle the error attention event */ |
| lpfc_handle_eratt(phba); |
| |
| if (phba->fw_dump_cmpl) { |
| complete(phba->fw_dump_cmpl); |
| phba->fw_dump_cmpl = NULL; |
| } |
| } |
| |
| if (ha_copy & HA_MBATT) |
| lpfc_sli_handle_mb_event(phba); |
| |
| if (ha_copy & HA_LATT) |
| lpfc_handle_latt(phba); |
| |
| /* Handle VMID Events */ |
| if (lpfc_is_vmid_enabled(phba) && !hba_pci_err) { |
| if (phba->pport->work_port_events & |
| WORKER_CHECK_VMID_ISSUE_QFPA) { |
| lpfc_check_vmid_qfpa_issue(phba); |
| phba->pport->work_port_events &= |
| ~WORKER_CHECK_VMID_ISSUE_QFPA; |
| } |
| if (phba->pport->work_port_events & |
| WORKER_CHECK_INACTIVE_VMID) { |
| lpfc_check_inactive_vmid(phba); |
| phba->pport->work_port_events &= |
| ~WORKER_CHECK_INACTIVE_VMID; |
| } |
| } |
| |
| /* Process SLI4 events */ |
| if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { |
| if (phba->hba_flag & HBA_RRQ_ACTIVE) |
| lpfc_handle_rrq_active(phba); |
| if (phba->hba_flag & ELS_XRI_ABORT_EVENT) |
| lpfc_sli4_els_xri_abort_event_proc(phba); |
| if (phba->hba_flag & ASYNC_EVENT) |
| lpfc_sli4_async_event_proc(phba); |
| if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); |
| } |
| if (phba->fcf.fcf_flag & FCF_REDISC_EVT) |
| lpfc_sli4_fcf_redisc_event_proc(phba); |
| } |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports; i++) { |
| /* |
| * We could have no vports in array if unloading, so if |
| * this happens then just use the pport |
| */ |
| if (vports[i] == NULL && i == 0) |
| vport = phba->pport; |
| else |
| vport = vports[i]; |
| if (vport == NULL) |
| break; |
| spin_lock_irq(&vport->work_port_lock); |
| work_port_events = vport->work_port_events; |
| vport->work_port_events &= ~work_port_events; |
| spin_unlock_irq(&vport->work_port_lock); |
| if (hba_pci_err) |
| continue; |
| if (work_port_events & WORKER_DISC_TMO) |
| lpfc_disc_timeout_handler(vport); |
| if (work_port_events & WORKER_ELS_TMO) |
| lpfc_els_timeout_handler(vport); |
| if (work_port_events & WORKER_HB_TMO) |
| lpfc_hb_timeout_handler(phba); |
| if (work_port_events & WORKER_MBOX_TMO) |
| lpfc_mbox_timeout_handler(phba); |
| if (work_port_events & WORKER_FABRIC_BLOCK_TMO) |
| lpfc_unblock_fabric_iocbs(phba); |
| if (work_port_events & WORKER_RAMP_DOWN_QUEUE) |
| lpfc_ramp_down_queue_handler(phba); |
| if (work_port_events & WORKER_DELAYED_DISC_TMO) |
| lpfc_delayed_disc_timeout_handler(vport); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| pring = lpfc_phba_elsring(phba); |
| status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); |
| status >>= (4*LPFC_ELS_RING); |
| if (pring && (status & HA_RXMASK || |
| pring->flag & LPFC_DEFERRED_RING_EVENT || |
| phba->hba_flag & HBA_SP_QUEUE_EVT)) { |
| if (pring->flag & LPFC_STOP_IOCB_EVENT) { |
| pring->flag |= LPFC_DEFERRED_RING_EVENT; |
| /* Preserve legacy behavior. */ |
| if (!(phba->hba_flag & HBA_SP_QUEUE_EVT)) |
| set_bit(LPFC_DATA_READY, &phba->data_flags); |
| } else { |
| /* Driver could have abort request completed in queue |
| * when link goes down. Allow for this transition. |
| */ |
| if (phba->link_state >= LPFC_LINK_DOWN || |
| phba->link_flag & LS_MDS_LOOPBACK) { |
| pring->flag &= ~LPFC_DEFERRED_RING_EVENT; |
| lpfc_sli_handle_slow_ring_event(phba, pring, |
| (status & |
| HA_RXMASK)); |
| } |
| } |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_drain_txq(phba); |
| /* |
| * Turn on Ring interrupts |
| */ |
| if (phba->sli_rev <= LPFC_SLI_REV3) { |
| spin_lock_irq(&phba->hbalock); |
| control = readl(phba->HCregaddr); |
| if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { |
| lpfc_debugfs_slow_ring_trc(phba, |
| "WRK Enable ring: cntl:x%x hacopy:x%x", |
| control, ha_copy, 0); |
| |
| control |= (HC_R0INT_ENA << LPFC_ELS_RING); |
| writel(control, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| } else { |
| lpfc_debugfs_slow_ring_trc(phba, |
| "WRK Ring ok: cntl:x%x hacopy:x%x", |
| control, ha_copy, 0); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| } |
| lpfc_work_list_done(phba); |
| } |
| |
| int |
| lpfc_do_work(void *p) |
| { |
| struct lpfc_hba *phba = p; |
| int rc; |
| |
| set_user_nice(current, MIN_NICE); |
| current->flags |= PF_NOFREEZE; |
| phba->data_flags = 0; |
| |
| while (!kthread_should_stop()) { |
| /* wait and check worker queue activities */ |
| rc = wait_event_interruptible(phba->work_waitq, |
| (test_and_clear_bit(LPFC_DATA_READY, |
| &phba->data_flags) |
| || kthread_should_stop())); |
| /* Signal wakeup shall terminate the worker thread */ |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0433 Wakeup on signal: rc=x%x\n", rc); |
| break; |
| } |
| |
| /* Attend pending lpfc data processing */ |
| lpfc_work_done(phba); |
| } |
| phba->worker_thread = NULL; |
| lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
| "0432 Worker thread stopped.\n"); |
| return 0; |
| } |
| |
| /* |
| * This is only called to handle FC worker events. Since this a rare |
| * occurrence, we allocate a struct lpfc_work_evt structure here instead of |
| * embedding it in the IOCB. |
| */ |
| int |
| lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, |
| uint32_t evt) |
| { |
| struct lpfc_work_evt *evtp; |
| unsigned long flags; |
| |
| /* |
| * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will |
| * be queued to worker thread for processing |
| */ |
| evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); |
| if (!evtp) |
| return 0; |
| |
| evtp->evt_arg1 = arg1; |
| evtp->evt_arg2 = arg2; |
| evtp->evt = evt; |
| |
| spin_lock_irqsave(&phba->hbalock, flags); |
| list_add_tail(&evtp->evt_listp, &phba->work_list); |
| spin_unlock_irqrestore(&phba->hbalock, flags); |
| |
| lpfc_worker_wake_up(phba); |
| |
| return 1; |
| } |
| |
| void |
| lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { |
| /* It's possible the FLOGI to the fabric node never |
| * successfully completed and never registered with the |
| * transport. In this case there is no way to clean up |
| * the node. |
| */ |
| if (ndlp->nlp_DID == Fabric_DID) { |
| if (ndlp->nlp_prev_state == |
| NLP_STE_UNUSED_NODE && |
| !ndlp->fc4_xpt_flags) |
| lpfc_nlp_put(ndlp); |
| } |
| continue; |
| } |
| |
| if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || |
| ((vport->port_type == LPFC_NPIV_PORT) && |
| ((ndlp->nlp_DID == NameServer_DID) || |
| (ndlp->nlp_DID == FDMI_DID) || |
| (ndlp->nlp_DID == Fabric_Cntl_DID)))) |
| lpfc_unreg_rpi(vport, ndlp); |
| |
| /* Leave Fabric nodes alone on link down */ |
| if ((phba->sli_rev < LPFC_SLI_REV4) && |
| (!remove && ndlp->nlp_type & NLP_FABRIC)) |
| continue; |
| |
| /* Notify transport of connectivity loss to trigger cleanup. */ |
| if (phba->nvmet_support && |
| ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) |
| lpfc_nvmet_invalidate_host(phba, ndlp); |
| |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| remove |
| ? NLP_EVT_DEVICE_RM |
| : NLP_EVT_DEVICE_RECOVERY); |
| } |
| if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_unreg_all_rpis(vport); |
| lpfc_mbx_unreg_vpi(vport); |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
| spin_unlock_irq(shost->host_lock); |
| } |
| } |
| |
| void |
| lpfc_port_link_failure(struct lpfc_vport *vport) |
| { |
| lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
| |
| /* Cleanup any outstanding received buffers */ |
| lpfc_cleanup_rcv_buffers(vport); |
| |
| /* Cleanup any outstanding RSCN activity */ |
| lpfc_els_flush_rscn(vport); |
| |
| /* Cleanup any outstanding ELS commands */ |
| lpfc_els_flush_cmd(vport); |
| |
| lpfc_cleanup_rpis(vport, 0); |
| |
| /* Turn off discovery timer if its running */ |
| lpfc_can_disctmo(vport); |
| } |
| |
| void |
| lpfc_linkdown_port(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) |
| fc_host_post_event(shost, fc_get_event_number(), |
| FCH_EVT_LINKDOWN, 0); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Link Down: state:x%x rtry:x%x flg:x%x", |
| vport->port_state, vport->fc_ns_retry, vport->fc_flag); |
| |
| lpfc_port_link_failure(vport); |
| |
| /* Stop delayed Nport discovery */ |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_DISC_DELAYED; |
| spin_unlock_irq(shost->host_lock); |
| del_timer_sync(&vport->delayed_disc_tmo); |
| } |
| |
| int |
| lpfc_linkdown(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_vport **vports; |
| LPFC_MBOXQ_t *mb; |
| int i; |
| int offline; |
| |
| if (phba->link_state == LPFC_LINK_DOWN) |
| return 0; |
| |
| /* Block all SCSI stack I/Os */ |
| lpfc_scsi_dev_block(phba); |
| offline = pci_channel_offline(phba->pcidev); |
| |
| phba->defer_flogi_acc_flag = false; |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); |
| spin_unlock_irq(&phba->hbalock); |
| if (phba->link_state > LPFC_LINK_DOWN) { |
| phba->link_state = LPFC_LINK_DOWN; |
| if (phba->sli4_hba.conf_trunk) { |
| phba->trunk_link.link0.state = 0; |
| phba->trunk_link.link1.state = 0; |
| phba->trunk_link.link2.state = 0; |
| phba->trunk_link.link3.state = 0; |
| phba->sli4_hba.link_state.logical_speed = |
| LPFC_LINK_SPEED_UNKNOWN; |
| } |
| spin_lock_irq(shost->host_lock); |
| phba->pport->fc_flag &= ~FC_LBIT; |
| spin_unlock_irq(shost->host_lock); |
| } |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) { |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| /* Issue a LINK DOWN event to all nodes */ |
| lpfc_linkdown_port(vports[i]); |
| |
| vports[i]->fc_myDID = 0; |
| |
| if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || |
| (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { |
| if (phba->nvmet_support) |
| lpfc_nvmet_update_targetport(phba); |
| else |
| lpfc_nvme_update_localport(vports[i]); |
| } |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| /* Clean up any SLI3 firmware default rpi's */ |
| if (phba->sli_rev > LPFC_SLI_REV3 || offline) |
| goto skip_unreg_did; |
| |
| mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (mb) { |
| lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); |
| mb->vport = vport; |
| mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) |
| == MBX_NOT_FINISHED) { |
| mempool_free(mb, phba->mbox_mem_pool); |
| } |
| } |
| |
| skip_unreg_did: |
| /* Setup myDID for link up if we are in pt2pt mode */ |
| if (phba->pport->fc_flag & FC_PT2PT) { |
| mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (mb) { |
| lpfc_config_link(phba, mb); |
| mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| mb->vport = vport; |
| if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) |
| == MBX_NOT_FINISHED) { |
| mempool_free(mb, phba->mbox_mem_pool); |
| } |
| } |
| spin_lock_irq(shost->host_lock); |
| phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); |
| phba->pport->rcv_flogi_cnt = 0; |
| spin_unlock_irq(shost->host_lock); |
| } |
| return 0; |
| } |
| |
| static void |
| lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); |
| |
| if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| continue; |
| if (ndlp->nlp_type & NLP_FABRIC) { |
| /* On Linkup its safe to clean up the ndlp |
| * from Fabric connections. |
| */ |
| if (ndlp->nlp_DID != Fabric_DID) |
| lpfc_unreg_rpi(vport, ndlp); |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
| } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { |
| /* Fail outstanding IO now since device is |
| * marked for PLOGI. |
| */ |
| lpfc_unreg_rpi(vport, ndlp); |
| } |
| } |
| } |
| |
| static void |
| lpfc_linkup_port(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| |
| if ((vport->load_flag & FC_UNLOADING) != 0) |
| return; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Link Up: top:x%x speed:x%x flg:x%x", |
| phba->fc_topology, phba->fc_linkspeed, phba->link_flag); |
| |
| /* If NPIV is not enabled, only bring the physical port up */ |
| if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
| (vport != phba->pport)) |
| return; |
| |
| if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) |
| fc_host_post_event(shost, fc_get_event_number(), |
| FCH_EVT_LINKUP, 0); |
| |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | |
| FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); |
| vport->fc_flag |= FC_NDISC_ACTIVE; |
| vport->fc_ns_retry = 0; |
| spin_unlock_irq(shost->host_lock); |
| |
| lpfc_linkup_cleanup_nodes(vport); |
| } |
| |
| static int |
| lpfc_linkup(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| int i; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); |
| |
| phba->link_state = LPFC_LINK_UP; |
| |
| /* Unblock fabric iocbs if they are blocked */ |
| clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); |
| del_timer_sync(&phba->fabric_block_timer); |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) |
| lpfc_linkup_port(vports[i]); |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| /* Clear the pport flogi counter in case the link down was |
| * absorbed without an ACQE. No lock here - in worker thread |
| * and discovery is synchronized. |
| */ |
| spin_lock_irq(shost->host_lock); |
| phba->pport->rcv_flogi_cnt = 0; |
| spin_unlock_irq(shost->host_lock); |
| |
| /* reinitialize initial FLOGI flag */ |
| phba->hba_flag &= ~(HBA_FLOGI_ISSUED); |
| phba->defer_flogi_acc_flag = false; |
| |
| return 0; |
| } |
| |
| /* |
| * This routine handles processing a CLEAR_LA mailbox |
| * command upon completion. It is setup in the LPFC_MBOXQ |
| * as the completion routine when the command is |
| * handed off to the SLI layer. SLI3 only. |
| */ |
| static void |
| lpfc_mbx_cmpl_clear_la(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_sli *psli = &phba->sli; |
| MAILBOX_t *mb = &pmb->u.mb; |
| uint32_t control; |
| |
| /* Since we don't do discovery right now, turn these off here */ |
| psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; |
| psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; |
| |
| /* Check for error */ |
| if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { |
| /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0320 CLEAR_LA mbxStatus error x%x hba " |
| "state x%x\n", |
| mb->mbxStatus, vport->port_state); |
| phba->link_state = LPFC_HBA_ERROR; |
| goto out; |
| } |
| |
| if (vport->port_type == LPFC_PHYSICAL_PORT) |
| phba->link_state = LPFC_HBA_READY; |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->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); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| |
| out: |
| /* Device Discovery completes */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0225 Device Discovery completes\n"); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_ABORT_DISCOVERY; |
| spin_unlock_irq(shost->host_lock); |
| |
| lpfc_can_disctmo(vport); |
| |
| /* turn on Link Attention interrupts */ |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->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); |
| |
| return; |
| } |
| |
| void |
| lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| LPFC_MBOXQ_t *sparam_mb; |
| struct lpfc_dmabuf *sparam_mp; |
| u16 status = pmb->u.mb.mbxStatus; |
| int rc; |
| |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| if (status) |
| goto out; |
| |
| /* don't perform discovery for SLI4 loopback diagnostic test */ |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| !(phba->hba_flag & HBA_FCOE_MODE) && |
| (phba->link_flag & LS_LOOPBACK_MODE)) |
| return; |
| |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && |
| vport->fc_flag & FC_PUBLIC_LOOP && |
| !(vport->fc_flag & FC_LBIT)) { |
| /* Need to wait for FAN - use discovery timer |
| * for timeout. port_state is identically |
| * LPFC_LOCAL_CFG_LINK while waiting for FAN |
| */ |
| lpfc_set_disctmo(vport); |
| return; |
| } |
| |
| /* Start discovery by sending a FLOGI. port_state is identically |
| * LPFC_FLOGI while waiting for FLOGI cmpl. |
| */ |
| if (vport->port_state != LPFC_FLOGI) { |
| /* Issue MBX_READ_SPARAM to update CSPs before FLOGI if |
| * bb-credit recovery is in place. |
| */ |
| if (phba->bbcredit_support && phba->cfg_enable_bbcr && |
| !(phba->link_flag & LS_LOOPBACK_MODE)) { |
| sparam_mb = mempool_alloc(phba->mbox_mem_pool, |
| GFP_KERNEL); |
| if (!sparam_mb) |
| goto sparam_out; |
| |
| rc = lpfc_read_sparam(phba, sparam_mb, 0); |
| if (rc) { |
| mempool_free(sparam_mb, phba->mbox_mem_pool); |
| goto sparam_out; |
| } |
| sparam_mb->vport = vport; |
| sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; |
| rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| sparam_mp = (struct lpfc_dmabuf *) |
| sparam_mb->ctx_buf; |
| lpfc_mbuf_free(phba, sparam_mp->virt, |
| sparam_mp->phys); |
| kfree(sparam_mp); |
| sparam_mb->ctx_buf = NULL; |
| mempool_free(sparam_mb, phba->mbox_mem_pool); |
| goto sparam_out; |
| } |
| |
| phba->hba_flag |= HBA_DEFER_FLOGI; |
| } else { |
| lpfc_initial_flogi(vport); |
| } |
| } else { |
| if (vport->fc_flag & FC_PT2PT) |
| lpfc_disc_start(vport); |
| } |
| return; |
| |
| out: |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n", |
| status, vport->port_state); |
| |
| sparam_out: |
| lpfc_linkdown(phba); |
| |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0200 CONFIG_LINK bad hba state x%x\n", |
| vport->port_state); |
| |
| lpfc_issue_clear_la(phba, vport); |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_clear_fcf_rr_bmask |
| * @phba: pointer to the struct lpfc_hba for this port. |
| * This fucnction resets the round robin bit mask and clears the |
| * fcf priority list. The list deletions are done while holding the |
| * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared |
| * from the lpfc_fcf_pri record. |
| **/ |
| void |
| lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) |
| { |
| struct lpfc_fcf_pri *fcf_pri; |
| struct lpfc_fcf_pri *next_fcf_pri; |
| memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); |
| spin_lock_irq(&phba->hbalock); |
| list_for_each_entry_safe(fcf_pri, next_fcf_pri, |
| &phba->fcf.fcf_pri_list, list) { |
| list_del_init(&fcf_pri->list); |
| fcf_pri->fcf_rec.flag = 0; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| static void |
| lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_vport *vport = mboxq->vport; |
| |
| if (mboxq->u.mb.mbxStatus) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2017 REG_FCFI mbxStatus error x%x " |
| "HBA state x%x\n", mboxq->u.mb.mbxStatus, |
| vport->port_state); |
| goto fail_out; |
| } |
| |
| /* Start FCoE discovery by sending a FLOGI. */ |
| phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); |
| /* Set the FCFI registered flag */ |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= FCF_REGISTERED; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* If there is a pending FCoE event, restart FCF table scan. */ |
| if ((!(phba->hba_flag & FCF_RR_INPROG)) && |
| lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) |
| goto fail_out; |
| |
| /* Mark successful completion of FCF table scan */ |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| if (vport->port_state != LPFC_FLOGI) { |
| phba->hba_flag |= FCF_RR_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_issue_init_vfi(vport); |
| goto out; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| goto out; |
| |
| fail_out: |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~FCF_RR_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| out: |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| } |
| |
| /** |
| * lpfc_fab_name_match - Check if the fcf fabric name match. |
| * @fab_name: pointer to fabric name. |
| * @new_fcf_record: pointer to fcf record. |
| * |
| * This routine compare the fcf record's fabric name with provided |
| * fabric name. If the fabric name are identical this function |
| * returns 1 else return 0. |
| **/ |
| static uint32_t |
| lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) |
| { |
| if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) |
| return 0; |
| if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) |
| return 0; |
| if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) |
| return 0; |
| if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) |
| return 0; |
| if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) |
| return 0; |
| if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) |
| return 0; |
| if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) |
| return 0; |
| if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) |
| return 0; |
| return 1; |
| } |
| |
| /** |
| * lpfc_sw_name_match - Check if the fcf switch name match. |
| * @sw_name: pointer to switch name. |
| * @new_fcf_record: pointer to fcf record. |
| * |
| * This routine compare the fcf record's switch name with provided |
| * switch name. If the switch name are identical this function |
| * returns 1 else return 0. |
| **/ |
| static uint32_t |
| lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) |
| { |
| if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) |
| return 0; |
| if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) |
| return 0; |
| if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) |
| return 0; |
| if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) |
| return 0; |
| if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) |
| return 0; |
| if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) |
| return 0; |
| if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) |
| return 0; |
| if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) |
| return 0; |
| return 1; |
| } |
| |
| /** |
| * lpfc_mac_addr_match - Check if the fcf mac address match. |
| * @mac_addr: pointer to mac address. |
| * @new_fcf_record: pointer to fcf record. |
| * |
| * This routine compare the fcf record's mac address with HBA's |
| * FCF mac address. If the mac addresses are identical this function |
| * returns 1 else return 0. |
| **/ |
| static uint32_t |
| lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) |
| { |
| if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) |
| return 0; |
| if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) |
| return 0; |
| if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) |
| return 0; |
| if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) |
| return 0; |
| if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) |
| return 0; |
| if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) |
| return 0; |
| return 1; |
| } |
| |
| static bool |
| lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) |
| { |
| return (curr_vlan_id == new_vlan_id); |
| } |
| |
| /** |
| * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_index: Index for the lpfc_fcf_record. |
| * @new_fcf_record: pointer to hba fcf record. |
| * |
| * This routine updates the driver FCF priority record from the new HBA FCF |
| * record. The hbalock is asserted held in the code path calling this |
| * routine. |
| **/ |
| static void |
| __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, |
| struct fcf_record *new_fcf_record |
| ) |
| { |
| struct lpfc_fcf_pri *fcf_pri; |
| |
| fcf_pri = &phba->fcf.fcf_pri[fcf_index]; |
| fcf_pri->fcf_rec.fcf_index = fcf_index; |
| /* FCF record priority */ |
| fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; |
| |
| } |
| |
| /** |
| * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. |
| * @fcf_rec: pointer to driver fcf record. |
| * @new_fcf_record: pointer to fcf record. |
| * |
| * This routine copies the FCF information from the FCF |
| * record to lpfc_hba data structure. |
| **/ |
| static void |
| lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, |
| struct fcf_record *new_fcf_record) |
| { |
| /* Fabric name */ |
| fcf_rec->fabric_name[0] = |
| bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); |
| fcf_rec->fabric_name[1] = |
| bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); |
| fcf_rec->fabric_name[2] = |
| bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); |
| fcf_rec->fabric_name[3] = |
| bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); |
| fcf_rec->fabric_name[4] = |
| bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); |
| fcf_rec->fabric_name[5] = |
| bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); |
| fcf_rec->fabric_name[6] = |
| bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); |
| fcf_rec->fabric_name[7] = |
| bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); |
| /* Mac address */ |
| fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); |
| fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); |
| fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); |
| fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); |
| fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); |
| fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); |
| /* FCF record index */ |
| fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); |
| /* FCF record priority */ |
| fcf_rec->priority = new_fcf_record->fip_priority; |
| /* Switch name */ |
| fcf_rec->switch_name[0] = |
| bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); |
| fcf_rec->switch_name[1] = |
| bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); |
| fcf_rec->switch_name[2] = |
| bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); |
| fcf_rec->switch_name[3] = |
| bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); |
| fcf_rec->switch_name[4] = |
| bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); |
| fcf_rec->switch_name[5] = |
| bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); |
| fcf_rec->switch_name[6] = |
| bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); |
| fcf_rec->switch_name[7] = |
| bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); |
| } |
| |
| /** |
| * __lpfc_update_fcf_record - Update driver fcf record |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_rec: pointer to driver fcf record. |
| * @new_fcf_record: pointer to hba fcf record. |
| * @addr_mode: address mode to be set to the driver fcf record. |
| * @vlan_id: vlan tag to be set to the driver fcf record. |
| * @flag: flag bits to be set to the driver fcf record. |
| * |
| * This routine updates the driver FCF record from the new HBA FCF record |
| * together with the address mode, vlan_id, and other informations. This |
| * routine is called with the hbalock held. |
| **/ |
| static void |
| __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, |
| struct fcf_record *new_fcf_record, uint32_t addr_mode, |
| uint16_t vlan_id, uint32_t flag) |
| { |
| lockdep_assert_held(&phba->hbalock); |
| |
| /* Copy the fields from the HBA's FCF record */ |
| lpfc_copy_fcf_record(fcf_rec, new_fcf_record); |
| /* Update other fields of driver FCF record */ |
| fcf_rec->addr_mode = addr_mode; |
| fcf_rec->vlan_id = vlan_id; |
| fcf_rec->flag |= (flag | RECORD_VALID); |
| __lpfc_update_fcf_record_pri(phba, |
| bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), |
| new_fcf_record); |
| } |
| |
| /** |
| * lpfc_register_fcf - Register the FCF with hba. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine issues a register fcfi mailbox command to register |
| * the fcf with HBA. |
| **/ |
| static void |
| lpfc_register_fcf(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *fcf_mbxq; |
| int rc; |
| |
| spin_lock_irq(&phba->hbalock); |
| /* If the FCF is not available do nothing. */ |
| if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { |
| phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| |
| /* The FCF is already registered, start discovery */ |
| if (phba->fcf.fcf_flag & FCF_REGISTERED) { |
| phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| if (phba->pport->port_state != LPFC_FLOGI && |
| phba->pport->fc_flag & FC_FABRIC) { |
| phba->hba_flag |= FCF_RR_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_initial_flogi(phba->pport); |
| return; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!fcf_mbxq) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| |
| lpfc_reg_fcfi(phba, fcf_mbxq); |
| fcf_mbxq->vport = phba->pport; |
| fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; |
| rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); |
| spin_unlock_irq(&phba->hbalock); |
| mempool_free(fcf_mbxq, phba->mbox_mem_pool); |
| } |
| |
| return; |
| } |
| |
| /** |
| * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. |
| * @phba: pointer to lpfc hba data structure. |
| * @new_fcf_record: pointer to fcf record. |
| * @boot_flag: Indicates if this record used by boot bios. |
| * @addr_mode: The address mode to be used by this FCF |
| * @vlan_id: The vlan id to be used as vlan tagging by this FCF. |
| * |
| * This routine compare the fcf record with connect list obtained from the |
| * config region to decide if this FCF can be used for SAN discovery. It returns |
| * 1 if this record can be used for SAN discovery else return zero. If this FCF |
| * record can be used for SAN discovery, the boot_flag will indicate if this FCF |
| * is used by boot bios and addr_mode will indicate the addressing mode to be |
| * used for this FCF when the function returns. |
| * If the FCF record need to be used with a particular vlan id, the vlan is |
| * set in the vlan_id on return of the function. If not VLAN tagging need to |
| * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; |
| **/ |
| static int |
| lpfc_match_fcf_conn_list(struct lpfc_hba *phba, |
| struct fcf_record *new_fcf_record, |
| uint32_t *boot_flag, uint32_t *addr_mode, |
| uint16_t *vlan_id) |
| { |
| struct lpfc_fcf_conn_entry *conn_entry; |
| int i, j, fcf_vlan_id = 0; |
| |
| /* Find the lowest VLAN id in the FCF record */ |
| for (i = 0; i < 512; i++) { |
| if (new_fcf_record->vlan_bitmap[i]) { |
| fcf_vlan_id = i * 8; |
| j = 0; |
| while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { |
| j++; |
| fcf_vlan_id++; |
| } |
| break; |
| } |
| } |
| |
| /* FCF not valid/available or solicitation in progress */ |
| if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || |
| !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || |
| bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) |
| return 0; |
| |
| if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { |
| *boot_flag = 0; |
| *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record); |
| if (phba->valid_vlan) |
| *vlan_id = phba->vlan_id; |
| else |
| *vlan_id = LPFC_FCOE_NULL_VID; |
| return 1; |
| } |
| |
| /* |
| * If there are no FCF connection table entry, driver connect to all |
| * FCFs. |
| */ |
| if (list_empty(&phba->fcf_conn_rec_list)) { |
| *boot_flag = 0; |
| *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record); |
| |
| /* |
| * When there are no FCF connect entries, use driver's default |
| * addressing mode - FPMA. |
| */ |
| if (*addr_mode & LPFC_FCF_FPMA) |
| *addr_mode = LPFC_FCF_FPMA; |
| |
| /* If FCF record report a vlan id use that vlan id */ |
| if (fcf_vlan_id) |
| *vlan_id = fcf_vlan_id; |
| else |
| *vlan_id = LPFC_FCOE_NULL_VID; |
| return 1; |
| } |
| |
| list_for_each_entry(conn_entry, |
| &phba->fcf_conn_rec_list, list) { |
| if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) |
| continue; |
| |
| if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && |
| !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, |
| new_fcf_record)) |
| continue; |
| if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && |
| !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, |
| new_fcf_record)) |
| continue; |
| if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { |
| /* |
| * If the vlan bit map does not have the bit set for the |
| * vlan id to be used, then it is not a match. |
| */ |
| if (!(new_fcf_record->vlan_bitmap |
| [conn_entry->conn_rec.vlan_tag / 8] & |
| (1 << (conn_entry->conn_rec.vlan_tag % 8)))) |
| continue; |
| } |
| |
| /* |
| * If connection record does not support any addressing mode, |
| * skip the FCF record. |
| */ |
| if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) |
| & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) |
| continue; |
| |
| /* |
| * Check if the connection record specifies a required |
| * addressing mode. |
| */ |
| if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && |
| !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { |
| |
| /* |
| * If SPMA required but FCF not support this continue. |
| */ |
| if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && |
| !(bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record) & LPFC_FCF_SPMA)) |
| continue; |
| |
| /* |
| * If FPMA required but FCF not support this continue. |
| */ |
| if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && |
| !(bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record) & LPFC_FCF_FPMA)) |
| continue; |
| } |
| |
| /* |
| * This fcf record matches filtering criteria. |
| */ |
| if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) |
| *boot_flag = 1; |
| else |
| *boot_flag = 0; |
| |
| /* |
| * If user did not specify any addressing mode, or if the |
| * preferred addressing mode specified by user is not supported |
| * by FCF, allow fabric to pick the addressing mode. |
| */ |
| *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record); |
| /* |
| * If the user specified a required address mode, assign that |
| * address mode |
| */ |
| if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && |
| (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) |
| *addr_mode = (conn_entry->conn_rec.flags & |
| FCFCNCT_AM_SPMA) ? |
| LPFC_FCF_SPMA : LPFC_FCF_FPMA; |
| /* |
| * If the user specified a preferred address mode, use the |
| * addr mode only if FCF support the addr_mode. |
| */ |
| else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && |
| (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && |
| (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && |
| (*addr_mode & LPFC_FCF_SPMA)) |
| *addr_mode = LPFC_FCF_SPMA; |
| else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && |
| (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && |
| !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && |
| (*addr_mode & LPFC_FCF_FPMA)) |
| *addr_mode = LPFC_FCF_FPMA; |
| |
| /* If matching connect list has a vlan id, use it */ |
| if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) |
| *vlan_id = conn_entry->conn_rec.vlan_tag; |
| /* |
| * If no vlan id is specified in connect list, use the vlan id |
| * in the FCF record |
| */ |
| else if (fcf_vlan_id) |
| *vlan_id = fcf_vlan_id; |
| else |
| *vlan_id = LPFC_FCOE_NULL_VID; |
| |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. |
| * @phba: pointer to lpfc hba data structure. |
| * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. |
| * |
| * This function check if there is any fcoe event pending while driver |
| * scan FCF entries. If there is any pending event, it will restart the |
| * FCF saning and return 1 else return 0. |
| */ |
| int |
| lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) |
| { |
| /* |
| * If the Link is up and no FCoE events while in the |
| * FCF discovery, no need to restart FCF discovery. |
| */ |
| if ((phba->link_state >= LPFC_LINK_UP) && |
| (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) |
| return 0; |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2768 Pending link or FCF event during current " |
| "handling of the previous event: link_state:x%x, " |
| "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", |
| phba->link_state, phba->fcoe_eventtag_at_fcf_scan, |
| phba->fcoe_eventtag); |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_AVAILABLE; |
| spin_unlock_irq(&phba->hbalock); |
| |
| if (phba->link_state >= LPFC_LINK_UP) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, |
| "2780 Restart FCF table scan due to " |
| "pending FCF event:evt_tag_at_scan:x%x, " |
| "evt_tag_current:x%x\n", |
| phba->fcoe_eventtag_at_fcf_scan, |
| phba->fcoe_eventtag); |
| lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); |
| } else { |
| /* |
| * Do not continue FCF discovery and clear FCF_TS_INPROG |
| * flag |
| */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, |
| "2833 Stop FCF discovery process due to link " |
| "state change (x%x)\n", phba->link_state); |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); |
| phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /* Unregister the currently registered FCF if required */ |
| if (unreg_fcf) { |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_REGISTERED; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_unregister_fcf(phba); |
| } |
| return 1; |
| } |
| |
| /** |
| * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_cnt: number of eligible fcf record seen so far. |
| * |
| * This function makes an running random selection decision on FCF record to |
| * use through a sequence of @fcf_cnt eligible FCF records with equal |
| * probability. To perform integer manunipulation of random numbers with |
| * size unit32_t, the lower 16 bits of the 32-bit random number returned |
| * from prandom_u32() are taken as the random random number generated. |
| * |
| * Returns true when outcome is for the newly read FCF record should be |
| * chosen; otherwise, return false when outcome is for keeping the previously |
| * chosen FCF record. |
| **/ |
| static bool |
| lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) |
| { |
| uint32_t rand_num; |
| |
| /* Get 16-bit uniform random number */ |
| rand_num = 0xFFFF & prandom_u32(); |
| |
| /* Decision with probability 1/fcf_cnt */ |
| if ((fcf_cnt * rand_num) < 0xFFFF) |
| return true; |
| else |
| return false; |
| } |
| |
| /** |
| * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox object. |
| * @next_fcf_index: pointer to holder of next fcf index. |
| * |
| * This routine parses the non-embedded fcf mailbox command by performing the |
| * necessarily error checking, non-embedded read FCF record mailbox command |
| * SGE parsing, and endianness swapping. |
| * |
| * Returns the pointer to the new FCF record in the non-embedded mailbox |
| * command DMA memory if successfully, other NULL. |
| */ |
| static struct fcf_record * |
| lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, |
| uint16_t *next_fcf_index) |
| { |
| void *virt_addr; |
| struct lpfc_mbx_sge sge; |
| struct lpfc_mbx_read_fcf_tbl *read_fcf; |
| uint32_t shdr_status, shdr_add_status, if_type; |
| union lpfc_sli4_cfg_shdr *shdr; |
| struct fcf_record *new_fcf_record; |
| |
| /* Get the first SGE entry from the non-embedded DMA memory. This |
| * routine only uses a single SGE. |
| */ |
| lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); |
| if (unlikely(!mboxq->sge_array)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2524 Failed to get the non-embedded SGE " |
| "virtual address\n"); |
| return NULL; |
| } |
| virt_addr = mboxq->sge_array->addr[0]; |
| |
| shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; |
| lpfc_sli_pcimem_bcopy(shdr, shdr, |
| sizeof(union lpfc_sli4_cfg_shdr)); |
| shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
| if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
| shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); |
| if (shdr_status || shdr_add_status) { |
| if (shdr_status == STATUS_FCF_TABLE_EMPTY || |
| if_type == LPFC_SLI_INTF_IF_TYPE_2) |
| lpfc_printf_log(phba, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "2726 READ_FCF_RECORD Indicates empty " |
| "FCF table.\n"); |
| else |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2521 READ_FCF_RECORD mailbox failed " |
| "with status x%x add_status x%x, " |
| "mbx\n", shdr_status, shdr_add_status); |
| return NULL; |
| } |
| |
| /* Interpreting the returned information of the FCF record */ |
| read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; |
| lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, |
| sizeof(struct lpfc_mbx_read_fcf_tbl)); |
| *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); |
| new_fcf_record = (struct fcf_record *)(virt_addr + |
| sizeof(struct lpfc_mbx_read_fcf_tbl)); |
| lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, |
| offsetof(struct fcf_record, vlan_bitmap)); |
| new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); |
| new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); |
| |
| return new_fcf_record; |
| } |
| |
| /** |
| * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_record: pointer to the fcf record. |
| * @vlan_id: the lowest vlan identifier associated to this fcf record. |
| * @next_fcf_index: the index to the next fcf record in hba's fcf table. |
| * |
| * This routine logs the detailed FCF record if the LOG_FIP loggin is |
| * enabled. |
| **/ |
| static void |
| lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, |
| struct fcf_record *fcf_record, |
| uint16_t vlan_id, |
| uint16_t next_fcf_index) |
| { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2764 READ_FCF_RECORD:\n" |
| "\tFCF_Index : x%x\n" |
| "\tFCF_Avail : x%x\n" |
| "\tFCF_Valid : x%x\n" |
| "\tFCF_SOL : x%x\n" |
| "\tFIP_Priority : x%x\n" |
| "\tMAC_Provider : x%x\n" |
| "\tLowest VLANID : x%x\n" |
| "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" |
| "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" |
| "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" |
| "\tNext_FCF_Index: x%x\n", |
| bf_get(lpfc_fcf_record_fcf_index, fcf_record), |
| bf_get(lpfc_fcf_record_fcf_avail, fcf_record), |
| bf_get(lpfc_fcf_record_fcf_valid, fcf_record), |
| bf_get(lpfc_fcf_record_fcf_sol, fcf_record), |
| fcf_record->fip_priority, |
| bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), |
| vlan_id, |
| bf_get(lpfc_fcf_record_mac_0, fcf_record), |
| bf_get(lpfc_fcf_record_mac_1, fcf_record), |
| bf_get(lpfc_fcf_record_mac_2, fcf_record), |
| bf_get(lpfc_fcf_record_mac_3, fcf_record), |
| bf_get(lpfc_fcf_record_mac_4, fcf_record), |
| bf_get(lpfc_fcf_record_mac_5, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_0, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_1, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_2, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_3, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_4, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_5, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_6, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_7, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_0, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_1, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_2, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_3, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_4, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_5, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_6, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_7, fcf_record), |
| next_fcf_index); |
| } |
| |
| /** |
| * lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_rec: pointer to an existing FCF record. |
| * @new_fcf_record: pointer to a new FCF record. |
| * @new_vlan_id: vlan id from the new FCF record. |
| * |
| * This function performs matching test of a new FCF record against an existing |
| * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id |
| * will not be used as part of the FCF record matching criteria. |
| * |
| * Returns true if all the fields matching, otherwise returns false. |
| */ |
| static bool |
| lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, |
| struct lpfc_fcf_rec *fcf_rec, |
| struct fcf_record *new_fcf_record, |
| uint16_t new_vlan_id) |
| { |
| if (new_vlan_id != LPFC_FCOE_IGNORE_VID) |
| if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) |
| return false; |
| if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) |
| return false; |
| if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) |
| return false; |
| if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) |
| return false; |
| if (fcf_rec->priority != new_fcf_record->fip_priority) |
| return false; |
| return true; |
| } |
| |
| /** |
| * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf |
| * @vport: Pointer to vport object. |
| * @fcf_index: index to next fcf. |
| * |
| * This function processing the roundrobin fcf failover to next fcf index. |
| * When this function is invoked, there will be a current fcf registered |
| * for flogi. |
| * Return: 0 for continue retrying flogi on currently registered fcf; |
| * 1 for stop flogi on currently registered fcf; |
| */ |
| int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| int rc; |
| |
| if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { |
| spin_lock_irq(&phba->hbalock); |
| if (phba->hba_flag & HBA_DEVLOSS_TMO) { |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2872 Devloss tmo with no eligible " |
| "FCF, unregister in-use FCF (x%x) " |
| "and rescan FCF table\n", |
| phba->fcf.current_rec.fcf_indx); |
| lpfc_unregister_fcf_rescan(phba); |
| goto stop_flogi_current_fcf; |
| } |
| /* Mark the end to FLOGI roundrobin failover */ |
| phba->hba_flag &= ~FCF_RR_INPROG; |
| /* Allow action to new fcf asynchronous event */ |
| phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2865 No FCF available, stop roundrobin FCF " |
| "failover and change port state:x%x/x%x\n", |
| phba->pport->port_state, LPFC_VPORT_UNKNOWN); |
| phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
| |
| if (!phba->fcf.fcf_redisc_attempted) { |
| lpfc_unregister_fcf(phba); |
| |
| rc = lpfc_sli4_redisc_fcf_table(phba); |
| if (!rc) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "3195 Rediscover FCF table\n"); |
| phba->fcf.fcf_redisc_attempted = 1; |
| lpfc_sli4_clear_fcf_rr_bmask(phba); |
| } else { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "3196 Rediscover FCF table " |
| "failed. Status:x%x\n", rc); |
| } |
| } else { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "3197 Already rediscover FCF table " |
| "attempted. No more retry\n"); |
| } |
| goto stop_flogi_current_fcf; |
| } else { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, |
| "2794 Try FLOGI roundrobin FCF failover to " |
| "(x%x)\n", fcf_index); |
| rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); |
| if (rc) |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
| "2761 FLOGI roundrobin FCF failover " |
| "failed (rc:x%x) to read FCF (x%x)\n", |
| rc, phba->fcf.current_rec.fcf_indx); |
| else |
| goto stop_flogi_current_fcf; |
| } |
| return 0; |
| |
| stop_flogi_current_fcf: |
| lpfc_can_disctmo(vport); |
| return 1; |
| } |
| |
| /** |
| * lpfc_sli4_fcf_pri_list_del |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_index: the index of the fcf record to delete |
| * This routine checks the on list flag of the fcf_index to be deleted. |
| * If it is one the list then it is removed from the list, and the flag |
| * is cleared. This routine grab the hbalock before removing the fcf |
| * record from the list. |
| **/ |
| static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, |
| uint16_t fcf_index) |
| { |
| struct lpfc_fcf_pri *new_fcf_pri; |
| |
| new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "3058 deleting idx x%x pri x%x flg x%x\n", |
| fcf_index, new_fcf_pri->fcf_rec.priority, |
| new_fcf_pri->fcf_rec.flag); |
| spin_lock_irq(&phba->hbalock); |
| if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { |
| if (phba->fcf.current_rec.priority == |
| new_fcf_pri->fcf_rec.priority) |
| phba->fcf.eligible_fcf_cnt--; |
| list_del_init(&new_fcf_pri->list); |
| new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /** |
| * lpfc_sli4_set_fcf_flogi_fail |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_index: the index of the fcf record to update |
| * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED |
| * flag so the the round robin slection for the particular priority level |
| * will try a different fcf record that does not have this bit set. |
| * If the fcf record is re-read for any reason this flag is cleared brfore |
| * adding it to the priority list. |
| **/ |
| void |
| lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) |
| { |
| struct lpfc_fcf_pri *new_fcf_pri; |
| new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; |
| spin_lock_irq(&phba->hbalock); |
| new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /** |
| * lpfc_sli4_fcf_pri_list_add |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_index: the index of the fcf record to add |
| * @new_fcf_record: pointer to a new FCF record. |
| * This routine checks the priority of the fcf_index to be added. |
| * If it is a lower priority than the current head of the fcf_pri list |
| * then it is added to the list in the right order. |
| * If it is the same priority as the current head of the list then it |
| * is added to the head of the list and its bit in the rr_bmask is set. |
| * If the fcf_index to be added is of a higher priority than the current |
| * head of the list then the rr_bmask is cleared, its bit is set in the |
| * rr_bmask and it is added to the head of the list. |
| * returns: |
| * 0=success 1=failure |
| **/ |
| static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, |
| uint16_t fcf_index, |
| struct fcf_record *new_fcf_record) |
| { |
| uint16_t current_fcf_pri; |
| uint16_t last_index; |
| struct lpfc_fcf_pri *fcf_pri; |
| struct lpfc_fcf_pri *next_fcf_pri; |
| struct lpfc_fcf_pri *new_fcf_pri; |
| int ret; |
| |
| new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "3059 adding idx x%x pri x%x flg x%x\n", |
| fcf_index, new_fcf_record->fip_priority, |
| new_fcf_pri->fcf_rec.flag); |
| spin_lock_irq(&phba->hbalock); |
| if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) |
| list_del_init(&new_fcf_pri->list); |
| new_fcf_pri->fcf_rec.fcf_index = fcf_index; |
| new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; |
| if (list_empty(&phba->fcf.fcf_pri_list)) { |
| list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); |
| ret = lpfc_sli4_fcf_rr_index_set(phba, |
| new_fcf_pri->fcf_rec.fcf_index); |
| goto out; |
| } |
| |
| last_index = find_first_bit(phba->fcf.fcf_rr_bmask, |
| LPFC_SLI4_FCF_TBL_INDX_MAX); |
| if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { |
| ret = 0; /* Empty rr list */ |
| goto out; |
| } |
| current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; |
| if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { |
| list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); |
| if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { |
| memset(phba->fcf.fcf_rr_bmask, 0, |
| sizeof(*phba->fcf.fcf_rr_bmask)); |
| /* fcfs_at_this_priority_level = 1; */ |
| phba->fcf.eligible_fcf_cnt = 1; |
| } else |
| /* fcfs_at_this_priority_level++; */ |
| phba->fcf.eligible_fcf_cnt++; |
| ret = lpfc_sli4_fcf_rr_index_set(phba, |
| new_fcf_pri->fcf_rec.fcf_index); |
| goto out; |
| } |
| |
| list_for_each_entry_safe(fcf_pri, next_fcf_pri, |
| &phba->fcf.fcf_pri_list, list) { |
| if (new_fcf_pri->fcf_rec.priority <= |
| fcf_pri->fcf_rec.priority) { |
| if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) |
| list_add(&new_fcf_pri->list, |
| &phba->fcf.fcf_pri_list); |
| else |
| list_add(&new_fcf_pri->list, |
| &((struct lpfc_fcf_pri *) |
| fcf_pri->list.prev)->list); |
| ret = 0; |
| goto out; |
| } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list |
| || new_fcf_pri->fcf_rec.priority < |
| next_fcf_pri->fcf_rec.priority) { |
| list_add(&new_fcf_pri->list, &fcf_pri->list); |
| ret = 0; |
| goto out; |
| } |
| if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) |
| continue; |
| |
| } |
| ret = 1; |
| out: |
| /* we use = instead of |= to clear the FLOGI_FAILED flag. */ |
| new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; |
| spin_unlock_irq(&phba->hbalock); |
| return ret; |
| } |
| |
| /** |
| * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox object. |
| * |
| * This function iterates through all the fcf records available in |
| * HBA and chooses the optimal FCF record for discovery. After finding |
| * the FCF for discovery it registers the FCF record and kicks start |
| * discovery. |
| * If FCF_IN_USE flag is set in currently used FCF, the routine tries to |
| * use an FCF record which matches fabric name and mac address of the |
| * currently used FCF record. |
| * If the driver supports only one FCF, it will try to use the FCF record |
| * used by BOOT_BIOS. |
| */ |
| void |
| lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct fcf_record *new_fcf_record; |
| uint32_t boot_flag, addr_mode; |
| uint16_t fcf_index, next_fcf_index; |
| struct lpfc_fcf_rec *fcf_rec = NULL; |
| uint16_t vlan_id = LPFC_FCOE_NULL_VID; |
| bool select_new_fcf; |
| int rc; |
| |
| /* If there is pending FCoE event restart FCF table scan */ |
| if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| return; |
| } |
| |
| /* Parse the FCF record from the non-embedded mailbox command */ |
| new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, |
| &next_fcf_index); |
| if (!new_fcf_record) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2765 Mailbox command READ_FCF_RECORD " |
| "failed to retrieve a FCF record.\n"); |
| /* Let next new FCF event trigger fast failover */ |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| return; |
| } |
| |
| /* Check the FCF record against the connection list */ |
| rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, |
| &addr_mode, &vlan_id); |
| |
| /* Log the FCF record information if turned on */ |
| lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, |
| next_fcf_index); |
| |
| /* |
| * If the fcf record does not match with connect list entries |
| * read the next entry; otherwise, this is an eligible FCF |
| * record for roundrobin FCF failover. |
| */ |
| if (!rc) { |
| lpfc_sli4_fcf_pri_list_del(phba, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "2781 FCF (x%x) failed connection " |
| "list check: (x%x/x%x/%x)\n", |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record), |
| bf_get(lpfc_fcf_record_fcf_avail, |
| new_fcf_record), |
| bf_get(lpfc_fcf_record_fcf_valid, |
| new_fcf_record), |
| bf_get(lpfc_fcf_record_fcf_sol, |
| new_fcf_record)); |
| if ((phba->fcf.fcf_flag & FCF_IN_USE) && |
| lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, |
| new_fcf_record, LPFC_FCOE_IGNORE_VID)) { |
| if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != |
| phba->fcf.current_rec.fcf_indx) { |
| lpfc_printf_log(phba, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "2862 FCF (x%x) matches property " |
| "of in-use FCF (x%x)\n", |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record), |
| phba->fcf.current_rec.fcf_indx); |
| goto read_next_fcf; |
| } |
| /* |
| * In case the current in-use FCF record becomes |
| * invalid/unavailable during FCF discovery that |
| * was not triggered by fast FCF failover process, |
| * treat it as fast FCF failover. |
| */ |
| if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && |
| !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "2835 Invalid in-use FCF " |
| "(x%x), enter FCF failover " |
| "table scan.\n", |
| phba->fcf.current_rec.fcf_indx); |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| lpfc_sli4_fcf_scan_read_fcf_rec(phba, |
| LPFC_FCOE_FCF_GET_FIRST); |
| return; |
| } |
| } |
| goto read_next_fcf; |
| } else { |
| fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); |
| rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, |
| new_fcf_record); |
| if (rc) |
| goto read_next_fcf; |
| } |
| |
| /* |
| * If this is not the first FCF discovery of the HBA, use last |
| * FCF record for the discovery. The condition that a rescan |
| * matches the in-use FCF record: fabric name, switch name, mac |
| * address, and vlan_id. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| if (phba->fcf.fcf_flag & FCF_IN_USE) { |
| if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && |
| lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, |
| new_fcf_record, vlan_id)) { |
| if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == |
| phba->fcf.current_rec.fcf_indx) { |
| phba->fcf.fcf_flag |= FCF_AVAILABLE; |
| if (phba->fcf.fcf_flag & FCF_REDISC_PEND) |
| /* Stop FCF redisc wait timer */ |
| __lpfc_sli4_stop_fcf_redisc_wait_timer( |
| phba); |
| else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) |
| /* Fast failover, mark completed */ |
| phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2836 New FCF matches in-use " |
| "FCF (x%x), port_state:x%x, " |
| "fc_flag:x%x\n", |
| phba->fcf.current_rec.fcf_indx, |
| phba->pport->port_state, |
| phba->pport->fc_flag); |
| goto out; |
| } else |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2863 New FCF (x%x) matches " |
| "property of in-use FCF (x%x)\n", |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record), |
| phba->fcf.current_rec.fcf_indx); |
| } |
| /* |
| * Read next FCF record from HBA searching for the matching |
| * with in-use record only if not during the fast failover |
| * period. In case of fast failover period, it shall try to |
| * determine whether the FCF record just read should be the |
| * next candidate. |
| */ |
| if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| } |
| } |
| /* |
| * Update on failover FCF record only if it's in FCF fast-failover |
| * period; otherwise, update on current FCF record. |
| */ |
| if (phba->fcf.fcf_flag & FCF_REDISC_FOV) |
| fcf_rec = &phba->fcf.failover_rec; |
| else |
| fcf_rec = &phba->fcf.current_rec; |
| |
| if (phba->fcf.fcf_flag & FCF_AVAILABLE) { |
| /* |
| * If the driver FCF record does not have boot flag |
| * set and new hba fcf record has boot flag set, use |
| * the new hba fcf record. |
| */ |
| if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { |
| /* Choose this FCF record */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2837 Update current FCF record " |
| "(x%x) with new FCF record (x%x)\n", |
| fcf_rec->fcf_indx, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, |
| addr_mode, vlan_id, BOOT_ENABLE); |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| } |
| /* |
| * If the driver FCF record has boot flag set and the |
| * new hba FCF record does not have boot flag, read |
| * the next FCF record. |
| */ |
| if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| } |
| /* |
| * If the new hba FCF record has lower priority value |
| * than the driver FCF record, use the new record. |
| */ |
| if (new_fcf_record->fip_priority < fcf_rec->priority) { |
| /* Choose the new FCF record with lower priority */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2838 Update current FCF record " |
| "(x%x) with new FCF record (x%x)\n", |
| fcf_rec->fcf_indx, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, |
| addr_mode, vlan_id, 0); |
| /* Reset running random FCF selection count */ |
| phba->fcf.eligible_fcf_cnt = 1; |
| } else if (new_fcf_record->fip_priority == fcf_rec->priority) { |
| /* Update running random FCF selection count */ |
| phba->fcf.eligible_fcf_cnt++; |
| select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, |
| phba->fcf.eligible_fcf_cnt); |
| if (select_new_fcf) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2839 Update current FCF record " |
| "(x%x) with new FCF record (x%x)\n", |
| fcf_rec->fcf_indx, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| /* Choose the new FCF by random selection */ |
| __lpfc_update_fcf_record(phba, fcf_rec, |
| new_fcf_record, |
| addr_mode, vlan_id, 0); |
| } |
| } |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| } |
| /* |
| * This is the first suitable FCF record, choose this record for |
| * initial best-fit FCF. |
| */ |
| if (fcf_rec) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2840 Update initial FCF candidate " |
| "with FCF (x%x)\n", |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, |
| addr_mode, vlan_id, (boot_flag ? |
| BOOT_ENABLE : 0)); |
| phba->fcf.fcf_flag |= FCF_AVAILABLE; |
| /* Setup initial running random FCF selection count */ |
| phba->fcf.eligible_fcf_cnt = 1; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| |
| read_next_fcf: |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { |
| if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { |
| /* |
| * Case of FCF fast failover scan |
| */ |
| |
| /* |
| * It has not found any suitable FCF record, cancel |
| * FCF scan inprogress, and do nothing |
| */ |
| if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "2782 No suitable FCF found: " |
| "(x%x/x%x)\n", |
| phba->fcoe_eventtag_at_fcf_scan, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| spin_lock_irq(&phba->hbalock); |
| if (phba->hba_flag & HBA_DEVLOSS_TMO) { |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| /* Unregister in-use FCF and rescan */ |
| lpfc_printf_log(phba, KERN_INFO, |
| LOG_FIP, |
| "2864 On devloss tmo " |
| "unreg in-use FCF and " |
| "rescan FCF table\n"); |
| lpfc_unregister_fcf_rescan(phba); |
| return; |
| } |
| /* |
| * Let next new FCF event trigger fast failover |
| */ |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| /* |
| * It has found a suitable FCF record that is not |
| * the same as in-use FCF record, unregister the |
| * in-use FCF record, replace the in-use FCF record |
| * with the new FCF record, mark FCF fast failover |
| * completed, and then start register the new FCF |
| * record. |
| */ |
| |
| /* Unregister the current in-use FCF record */ |
| lpfc_unregister_fcf(phba); |
| |
| /* Replace in-use record with the new record */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2842 Replace in-use FCF (x%x) " |
| "with failover FCF (x%x)\n", |
| phba->fcf.current_rec.fcf_indx, |
| phba->fcf.failover_rec.fcf_indx); |
| memcpy(&phba->fcf.current_rec, |
| &phba->fcf.failover_rec, |
| sizeof(struct lpfc_fcf_rec)); |
| /* |
| * Mark the fast FCF failover rediscovery completed |
| * and the start of the first round of the roundrobin |
| * FCF failover. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| /* Register to the new FCF record */ |
| lpfc_register_fcf(phba); |
| } else { |
| /* |
| * In case of transaction period to fast FCF failover, |
| * do nothing when search to the end of the FCF table. |
| */ |
| if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || |
| (phba->fcf.fcf_flag & FCF_REDISC_PEND)) |
| return; |
| |
| if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && |
| phba->fcf.fcf_flag & FCF_IN_USE) { |
| /* |
| * In case the current in-use FCF record no |
| * longer existed during FCF discovery that |
| * was not triggered by fast FCF failover |
| * process, treat it as fast FCF failover. |
| */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2841 In-use FCF record (x%x) " |
| "not reported, entering fast " |
| "FCF failover mode scanning.\n", |
| phba->fcf.current_rec.fcf_indx); |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_fcf_scan_read_fcf_rec(phba, |
| LPFC_FCOE_FCF_GET_FIRST); |
| return; |
| } |
| /* Register to the new FCF record */ |
| lpfc_register_fcf(phba); |
| } |
| } else |
| lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); |
| return; |
| |
| out: |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| lpfc_register_fcf(phba); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox object. |
| * |
| * This is the callback function for FLOGI failure roundrobin FCF failover |
| * read FCF record mailbox command from the eligible FCF record bmask for |
| * performing the failover. If the FCF read back is not valid/available, it |
| * fails through to retrying FLOGI to the currently registered FCF again. |
| * Otherwise, if the FCF read back is valid and available, it will set the |
| * newly read FCF record to the failover FCF record, unregister currently |
| * registered FCF record, copy the failover FCF record to the current |
| * FCF record, and then register the current FCF record before proceeding |
| * to trying FLOGI on the new failover FCF. |
| */ |
| void |
| lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct fcf_record *new_fcf_record; |
| uint32_t boot_flag, addr_mode; |
| uint16_t next_fcf_index, fcf_index; |
| uint16_t current_fcf_index; |
| uint16_t vlan_id; |
| int rc; |
| |
| /* If link state is not up, stop the roundrobin failover process */ |
| if (phba->link_state < LPFC_LINK_UP) { |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_DISCOVERY; |
| phba->hba_flag &= ~FCF_RR_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| goto out; |
| } |
| |
| /* Parse the FCF record from the non-embedded mailbox command */ |
| new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, |
| &next_fcf_index); |
| if (!new_fcf_record) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "2766 Mailbox command READ_FCF_RECORD " |
| "failed to retrieve a FCF record. " |
| "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, |
| phba->fcf.fcf_flag); |
| lpfc_unregister_fcf_rescan(phba); |
| goto out; |
| } |
| |
| /* Get the needed parameters from FCF record */ |
| rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, |
| &addr_mode, &vlan_id); |
| |
| /* Log the FCF record information if turned on */ |
| lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, |
| next_fcf_index); |
| |
| fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); |
| if (!rc) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2848 Remove ineligible FCF (x%x) from " |
| "from roundrobin bmask\n", fcf_index); |
| /* Clear roundrobin bmask bit for ineligible FCF */ |
| lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); |
| /* Perform next round of roundrobin FCF failover */ |
| fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
| rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); |
| if (rc) |
| goto out; |
| goto error_out; |
| } |
| |
| if (fcf_index == phba->fcf.current_rec.fcf_indx) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2760 Perform FLOGI roundrobin FCF failover: " |
| "FCF (x%x) back to FCF (x%x)\n", |
| phba->fcf.current_rec.fcf_indx, fcf_index); |
| /* Wait 500 ms before retrying FLOGI to current FCF */ |
| msleep(500); |
| lpfc_issue_init_vfi(phba->pport); |
| goto out; |
| } |
| |
| /* Upload new FCF record to the failover FCF record */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2834 Update current FCF (x%x) with new FCF (x%x)\n", |
| phba->fcf.failover_rec.fcf_indx, fcf_index); |
| spin_lock_irq(&phba->hbalock); |
| __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, |
| new_fcf_record, addr_mode, vlan_id, |
| (boot_flag ? BOOT_ENABLE : 0)); |
| spin_unlock_irq(&phba->hbalock); |
| |
| current_fcf_index = phba->fcf.current_rec.fcf_indx; |
| |
| /* Unregister the current in-use FCF record */ |
| lpfc_unregister_fcf(phba); |
| |
| /* Replace in-use record with the new record */ |
| memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, |
| sizeof(struct lpfc_fcf_rec)); |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2783 Perform FLOGI roundrobin FCF failover: FCF " |
| "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); |
| |
| error_out: |
| lpfc_register_fcf(phba); |
| out: |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| } |
| |
| /** |
| * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox object. |
| * |
| * This is the callback function of read FCF record mailbox command for |
| * updating the eligible FCF bmask for FLOGI failure roundrobin FCF |
| * failover when a new FCF event happened. If the FCF read back is |
| * valid/available and it passes the connection list check, it updates |
| * the bmask for the eligible FCF record for roundrobin failover. |
| */ |
| void |
| lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct fcf_record *new_fcf_record; |
| uint32_t boot_flag, addr_mode; |
| uint16_t fcf_index, next_fcf_index; |
| uint16_t vlan_id; |
| int rc; |
| |
| /* If link state is not up, no need to proceed */ |
| if (phba->link_state < LPFC_LINK_UP) |
| goto out; |
| |
| /* If FCF discovery period is over, no need to proceed */ |
| if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) |
| goto out; |
| |
| /* Parse the FCF record from the non-embedded mailbox command */ |
| new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, |
| &next_fcf_index); |
| if (!new_fcf_record) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2767 Mailbox command READ_FCF_RECORD " |
| "failed to retrieve a FCF record.\n"); |
| goto out; |
| } |
| |
| /* Check the connection list for eligibility */ |
| rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, |
| &addr_mode, &vlan_id); |
| |
| /* Log the FCF record information if turned on */ |
| lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, |
| next_fcf_index); |
| |
| if (!rc) |
| goto out; |
| |
| /* Update the eligible FCF record index bmask */ |
| fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); |
| |
| rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); |
| |
| out: |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| } |
| |
| /** |
| * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox data structure. |
| * |
| * This function handles completion of init vfi mailbox command. |
| */ |
| static void |
| lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_vport *vport = mboxq->vport; |
| |
| /* |
| * VFI not supported on interface type 0, just do the flogi |
| * Also continue if the VFI is in use - just use the same one. |
| */ |
| if (mboxq->u.mb.mbxStatus && |
| (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| LPFC_SLI_INTF_IF_TYPE_0) && |
| mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2891 Init VFI mailbox failed 0x%x\n", |
| mboxq->u.mb.mbxStatus); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| return; |
| } |
| |
| lpfc_initial_flogi(vport); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_issue_init_vfi - Issue init_vfi mailbox command. |
| * @vport: pointer to lpfc_vport data structure. |
| * |
| * This function issue a init_vfi mailbox command to initialize the VFI and |
| * VPI for the physical port. |
| */ |
| void |
| lpfc_issue_init_vfi(struct lpfc_vport *vport) |
| { |
| LPFC_MBOXQ_t *mboxq; |
| int rc; |
| struct lpfc_hba *phba = vport->phba; |
| |
| mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mboxq) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, "2892 Failed to allocate " |
| "init_vfi mailbox\n"); |
| return; |
| } |
| lpfc_init_vfi(mboxq, vport); |
| mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2893 Failed to issue init_vfi mailbox\n"); |
| mempool_free(mboxq, vport->phba->mbox_mem_pool); |
| } |
| } |
| |
| /** |
| * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox data structure. |
| * |
| * This function handles completion of init vpi mailbox command. |
| */ |
| void |
| lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_vport *vport = mboxq->vport; |
| struct lpfc_nodelist *ndlp; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| if (mboxq->u.mb.mbxStatus) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2609 Init VPI mailbox failed 0x%x\n", |
| mboxq->u.mb.mbxStatus); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| return; |
| } |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; |
| spin_unlock_irq(shost->host_lock); |
| |
| /* If this port is physical port or FDISC is done, do reg_vpi */ |
| if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp) |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "2731 Cannot find fabric " |
| "controller node\n"); |
| else |
| lpfc_register_new_vport(phba, vport, ndlp); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) |
| lpfc_initial_fdisc(vport); |
| else { |
| lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2606 No NPIV Fabric support\n"); |
| } |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_issue_init_vpi - Issue init_vpi mailbox command. |
| * @vport: pointer to lpfc_vport data structure. |
| * |
| * This function issue a init_vpi mailbox command to initialize |
| * VPI for the vport. |
| */ |
| void |
| lpfc_issue_init_vpi(struct lpfc_vport *vport) |
| { |
| LPFC_MBOXQ_t *mboxq; |
| int rc, vpi; |
| |
| if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { |
| vpi = lpfc_alloc_vpi(vport->phba); |
| if (!vpi) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "3303 Failed to obtain vport vpi\n"); |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| return; |
| } |
| vport->vpi = vpi; |
| } |
| |
| mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mboxq) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, "2607 Failed to allocate " |
| "init_vpi mailbox\n"); |
| return; |
| } |
| lpfc_init_vpi(vport->phba, mboxq, vport->vpi); |
| mboxq->vport = vport; |
| mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; |
| rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2608 Failed to issue init_vpi mailbox\n"); |
| mempool_free(mboxq, vport->phba->mbox_mem_pool); |
| } |
| } |
| |
| /** |
| * lpfc_start_fdiscs - send fdiscs for each vports on this port. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This function loops through the list of vports on the @phba and issues an |
| * FDISC if possible. |
| */ |
| void |
| lpfc_start_fdiscs(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| int i; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) { |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| if (vports[i]->port_type == LPFC_PHYSICAL_PORT) |
| continue; |
| /* There are no vpi for this vport */ |
| if (vports[i]->vpi > phba->max_vpi) { |
| lpfc_vport_set_state(vports[i], |
| FC_VPORT_FAILED); |
| continue; |
| } |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| lpfc_vport_set_state(vports[i], |
| FC_VPORT_LINKDOWN); |
| continue; |
| } |
| if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { |
| lpfc_issue_init_vpi(vports[i]); |
| continue; |
| } |
| if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) |
| lpfc_initial_fdisc(vports[i]); |
| else { |
| lpfc_vport_set_state(vports[i], |
| FC_VPORT_NO_FABRIC_SUPP); |
| lpfc_printf_vlog(vports[i], KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0259 No NPIV " |
| "Fabric support\n"); |
| } |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| void |
| lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_dmabuf *dmabuf = mboxq->ctx_buf; |
| struct lpfc_vport *vport = mboxq->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| /* |
| * VFI not supported for interface type 0, so ignore any mailbox |
| * error (except VFI in use) and continue with the discovery. |
| */ |
| if (mboxq->u.mb.mbxStatus && |
| (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| LPFC_SLI_INTF_IF_TYPE_0) && |
| mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2018 REG_VFI mbxStatus error x%x " |
| "HBA state x%x\n", |
| mboxq->u.mb.mbxStatus, vport->port_state); |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| /* FLOGI failed, use loop map to make discovery list */ |
| lpfc_disc_list_loopmap(vport); |
| /* Start discovery */ |
| lpfc_disc_start(vport); |
| goto out_free_mem; |
| } |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| goto out_free_mem; |
| } |
| |
| /* If the VFI is already registered, there is nothing else to do |
| * Unless this was a VFI update and we are in PT2PT mode, then |
| * we should drop through to set the port state to ready. |
| */ |
| if (vport->fc_flag & FC_VFI_REGISTERED) |
| if (!(phba->sli_rev == LPFC_SLI_REV4 && |
| vport->fc_flag & FC_PT2PT)) |
| goto out_free_mem; |
| |
| /* The VPI is implicitly registered when the VFI is registered */ |
| spin_lock_irq(shost->host_lock); |
| vport->vpi_state |= LPFC_VPI_REGISTERED; |
| vport->fc_flag |= FC_VFI_REGISTERED; |
| vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
| vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; |
| spin_unlock_irq(shost->host_lock); |
| |
| /* In case SLI4 FC loopback test, we are ready */ |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| (phba->link_flag & LS_LOOPBACK_MODE)) { |
| phba->link_state = LPFC_HBA_READY; |
| goto out_free_mem; |
| } |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
| "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " |
| "alpacnt:%d LinkState:%x topology:%x\n", |
| vport->port_state, vport->fc_flag, vport->fc_myDID, |
| vport->phba->alpa_map[0], |
| phba->link_state, phba->fc_topology); |
| |
| if (vport->port_state == LPFC_FABRIC_CFG_LINK) { |
| /* |
| * For private loop or for NPort pt2pt, |
| * just start discovery and we are done. |
| */ |
| if ((vport->fc_flag & FC_PT2PT) || |
| ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && |
| !(vport->fc_flag & FC_PUBLIC_LOOP))) { |
| |
| /* Use loop map to make discovery list */ |
| lpfc_disc_list_loopmap(vport); |
| /* Start discovery */ |
| if (vport->fc_flag & FC_PT2PT) |
| vport->port_state = LPFC_VPORT_READY; |
| else |
| lpfc_disc_start(vport); |
| } else { |
| lpfc_start_fdiscs(phba); |
| lpfc_do_scr_ns_plogi(phba, vport); |
| } |
| } |
| |
| out_free_mem: |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| if (dmabuf) { |
| lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); |
| kfree(dmabuf); |
| } |
| return; |
| } |
| |
| static void |
| lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb = &pmb->u.mb; |
| struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf; |
| struct lpfc_vport *vport = pmb->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct serv_parm *sp = &vport->fc_sparam; |
| uint32_t ed_tov; |
| |
| /* Check for error */ |
| if (mb->mbxStatus) { |
| /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0319 READ_SPARAM mbxStatus error x%x " |
| "hba state x%x>\n", |
| mb->mbxStatus, vport->port_state); |
| lpfc_linkdown(phba); |
| goto out; |
| } |
| |
| memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, |
| sizeof (struct serv_parm)); |
| |
| ed_tov = be32_to_cpu(sp->cmn.e_d_tov); |
| if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ |
| ed_tov = (ed_tov + 999999) / 1000000; |
| |
| phba->fc_edtov = ed_tov; |
| phba->fc_ratov = (2 * ed_tov) / 1000; |
| if (phba->fc_ratov < FF_DEF_RATOV) { |
| /* RA_TOV should be atleast 10sec for initial flogi */ |
| phba->fc_ratov = FF_DEF_RATOV; |
| } |
| |
| lpfc_update_vport_wwn(vport); |
| fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); |
| if (vport->port_type == LPFC_PHYSICAL_PORT) { |
| memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); |
| memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); |
| } |
| |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| /* Check if sending the FLOGI is being deferred to after we get |
| * up to date CSPs from MBX_READ_SPARAM. |
| */ |
| if (phba->hba_flag & HBA_DEFER_FLOGI) { |
| lpfc_initial_flogi(vport); |
| phba->hba_flag &= ~HBA_DEFER_FLOGI; |
| } |
| return; |
| |
| out: |
| pmb->ctx_buf = NULL; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| lpfc_issue_clear_la(phba, vport); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| } |
| |
| static void |
| lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; |
| struct Scsi_Host *shost; |
| int i; |
| struct lpfc_dmabuf *mp; |
| int rc; |
| struct fcf_record *fcf_record; |
| uint32_t fc_flags = 0; |
| unsigned long iflags; |
| |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); |
| |
| if (!(phba->hba_flag & HBA_FCOE_MODE)) { |
| switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { |
| case LPFC_LINK_SPEED_1GHZ: |
| case LPFC_LINK_SPEED_2GHZ: |
| case LPFC_LINK_SPEED_4GHZ: |
| case LPFC_LINK_SPEED_8GHZ: |
| case LPFC_LINK_SPEED_10GHZ: |
| case LPFC_LINK_SPEED_16GHZ: |
| case LPFC_LINK_SPEED_32GHZ: |
| case LPFC_LINK_SPEED_64GHZ: |
| case LPFC_LINK_SPEED_128GHZ: |
| case LPFC_LINK_SPEED_256GHZ: |
| break; |
| default: |
| phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; |
| break; |
| } |
| } |
| |
| if (phba->fc_topology && |
| phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
| "3314 Toplogy changed was 0x%x is 0x%x\n", |
| phba->fc_topology, |
| bf_get(lpfc_mbx_read_top_topology, la)); |
| phba->fc_topology_changed = 1; |
| } |
| |
| phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); |
| phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA); |
| |
| shost = lpfc_shost_from_vport(vport); |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; |
| |
| /* if npiv is enabled and this adapter supports npiv log |
| * a message that npiv is not supported in this topology |
| */ |
| if (phba->cfg_enable_npiv && phba->max_vpi) |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1309 Link Up Event npiv not supported in loop " |
| "topology\n"); |
| /* Get Loop Map information */ |
| if (bf_get(lpfc_mbx_read_top_il, la)) |
| fc_flags |= FC_LBIT; |
| |
| vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); |
| i = la->lilpBde64.tus.f.bdeSize; |
| |
| if (i == 0) { |
| phba->alpa_map[0] = 0; |
| } else { |
| if (vport->cfg_log_verbose & LOG_LINK_EVENT) { |
| int numalpa, j, k; |
| union { |
| uint8_t pamap[16]; |
| struct { |
| uint32_t wd1; |
| uint32_t wd2; |
| uint32_t wd3; |
| uint32_t wd4; |
| } pa; |
| } un; |
| numalpa = phba->alpa_map[0]; |
| j = 0; |
| while (j < numalpa) { |
| memset(un.pamap, 0, 16); |
| for (k = 1; j < numalpa; k++) { |
| un.pamap[k - 1] = |
| phba->alpa_map[j + 1]; |
| j++; |
| if (k == 16) |
| break; |
| } |
| /* Link Up Event ALPA map */ |
| lpfc_printf_log(phba, |
| KERN_WARNING, |
| LOG_LINK_EVENT, |
| "1304 Link Up Event " |
| "ALPA map Data: x%x " |
| "x%x x%x x%x\n", |
| un.pa.wd1, un.pa.wd2, |
| un.pa.wd3, un.pa.wd4); |
| } |
| } |
| } |
| } else { |
| if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { |
| if (phba->max_vpi && phba->cfg_enable_npiv && |
| (phba->sli_rev >= LPFC_SLI_REV3)) |
| phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; |
| } |
| vport->fc_myDID = phba->fc_pref_DID; |
| fc_flags |= FC_LBIT; |
| } |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| |
| if (fc_flags) { |
| spin_lock_irqsave(shost->host_lock, iflags); |
| vport->fc_flag |= fc_flags; |
| spin_unlock_irqrestore(shost->host_lock, iflags); |
| } |
| |
| lpfc_linkup(phba); |
| sparam_mbox = NULL; |
| |
| sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!sparam_mbox) |
| goto out; |
| |
| rc = lpfc_read_sparam(phba, sparam_mbox, 0); |
| if (rc) { |
| mempool_free(sparam_mbox, phba->mbox_mem_pool); |
| goto out; |
| } |
| sparam_mbox->vport = vport; |
| sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; |
| rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| mp = (struct lpfc_dmabuf *)sparam_mbox->ctx_buf; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(sparam_mbox, phba->mbox_mem_pool); |
| goto out; |
| } |
| |
| if (!(phba->hba_flag & HBA_FCOE_MODE)) { |
| cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!cfglink_mbox) |
| goto out; |
| vport->port_state = LPFC_LOCAL_CFG_LINK; |
| lpfc_config_link(phba, cfglink_mbox); |
| cfglink_mbox->vport = vport; |
| cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; |
| rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| mempool_free(cfglink_mbox, phba->mbox_mem_pool); |
| goto out; |
| } |
| } else { |
| vport->port_state = LPFC_VPORT_UNKNOWN; |
| /* |
| * Add the driver's default FCF record at FCF index 0 now. This |
| * is phase 1 implementation that support FCF index 0 and driver |
| * defaults. |
| */ |
| if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { |
| fcf_record = kzalloc(sizeof(struct fcf_record), |
| GFP_KERNEL); |
| if (unlikely(!fcf_record)) { |
| lpfc_printf_log(phba, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "2554 Could not allocate memory for " |
| "fcf record\n"); |
| rc = -ENODEV; |
| goto out; |
| } |
| |
| lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, |
| LPFC_FCOE_FCF_DEF_INDEX); |
| rc = lpfc_sli4_add_fcf_record(phba, fcf_record); |
| if (unlikely(rc)) { |
| lpfc_printf_log(phba, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "2013 Could not manually add FCF " |
| "record 0, status %d\n", rc); |
| rc = -ENODEV; |
| kfree(fcf_record); |
| goto out; |
| } |
| kfree(fcf_record); |
| } |
| /* |
| * The driver is expected to do FIP/FCF. Call the port |
| * and get the FCF Table. |
| */ |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| if (phba->hba_flag & FCF_TS_INPROG) { |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| return; |
| } |
| /* This is the initial FCF discovery scan */ |
| phba->fcf.fcf_flag |= FCF_INIT_DISC; |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, |
| "2778 Start FCF table scan at linkup\n"); |
| rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, |
| LPFC_FCOE_FCF_GET_FIRST); |
| if (rc) { |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| phba->fcf.fcf_flag &= ~FCF_INIT_DISC; |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| goto out; |
| } |
| /* Reset FCF roundrobin bmask for new discovery */ |
| lpfc_sli4_clear_fcf_rr_bmask(phba); |
| } |
| |
| /* Prepare for LINK up registrations */ |
| memset(phba->os_host_name, 0, sizeof(phba->os_host_name)); |
| scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s", |
| init_utsname()->nodename); |
| return; |
| out: |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n", |
| vport->port_state, sparam_mbox, cfglink_mbox); |
| lpfc_issue_clear_la(phba, vport); |
| return; |
| } |
| |
| static void |
| lpfc_enable_la(struct lpfc_hba *phba) |
| { |
| uint32_t control; |
| struct lpfc_sli *psli = &phba->sli; |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag |= LPFC_PROCESS_LA; |
| if (phba->sli_rev <= LPFC_SLI_REV3) { |
| control = readl(phba->HCregaddr); |
| control |= HC_LAINT_ENA; |
| writel(control, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| static void |
| lpfc_mbx_issue_link_down(struct lpfc_hba *phba) |
| { |
| lpfc_linkdown(phba); |
| lpfc_enable_la(phba); |
| lpfc_unregister_unused_fcf(phba); |
| /* turn on Link Attention interrupts - no CLEAR_LA needed */ |
| } |
| |
| |
| /* |
| * This routine handles processing a READ_TOPOLOGY mailbox |
| * command upon completion. It is setup in the LPFC_MBOXQ |
| * as the completion routine when the command is |
| * handed off to the SLI layer. SLI4 only. |
| */ |
| void |
| lpfc_mbx_cmpl_read_topology(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_mbx_read_top *la; |
| struct lpfc_sli_ring *pring; |
| MAILBOX_t *mb = &pmb->u.mb; |
| struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); |
| uint8_t attn_type; |
| unsigned long iflags; |
| |
| /* Unblock ELS traffic */ |
| pring = lpfc_phba_elsring(phba); |
| if (pring) |
| pring->flag &= ~LPFC_STOP_IOCB_EVENT; |
| |
| /* Check for error */ |
| if (mb->mbxStatus) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, |
| "1307 READ_LA mbox error x%x state x%x\n", |
| mb->mbxStatus, vport->port_state); |
| lpfc_mbx_issue_link_down(phba); |
| phba->link_state = LPFC_HBA_ERROR; |
| goto lpfc_mbx_cmpl_read_topology_free_mbuf; |
| } |
| |
| la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; |
| attn_type = bf_get(lpfc_mbx_read_top_att_type, la); |
| |
| memcpy(&phba->alpa_map[0], mp->virt, 128); |
| |
| spin_lock_irqsave(shost->host_lock, iflags); |
| if (bf_get(lpfc_mbx_read_top_pb, la)) |
| vport->fc_flag |= FC_BYPASSED_MODE; |
| else |
| vport->fc_flag &= ~FC_BYPASSED_MODE; |
| spin_unlock_irqrestore(shost->host_lock, iflags); |
| |
| if (phba->fc_eventTag <= la->eventTag) { |
| phba->fc_stat.LinkMultiEvent++; |
| if (attn_type == LPFC_ATT_LINK_UP) |
| if (phba->fc_eventTag != 0) |
| lpfc_linkdown(phba); |
| } |
| |
| phba->fc_eventTag = la->eventTag; |
| if (phba->sli_rev < LPFC_SLI_REV4) { |
| spin_lock_irqsave(&phba->hbalock, iflags); |
| if (bf_get(lpfc_mbx_read_top_mm, la)) |
| phba->sli.sli_flag |= LPFC_MENLO_MAINT; |
| else |
| phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; |
| spin_unlock_irqrestore(&phba->hbalock, iflags); |
| } |
| |
| phba->link_events++; |
| if ((attn_type == LPFC_ATT_LINK_UP) && |
| !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { |
| phba->fc_stat.LinkUp++; |
| if (phba->link_flag & LS_LOOPBACK_MODE) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1306 Link Up Event in loop back mode " |
| "x%x received Data: x%x x%x x%x x%x\n", |
| la->eventTag, phba->fc_eventTag, |
| bf_get(lpfc_mbx_read_top_alpa_granted, |
| la), |
| bf_get(lpfc_mbx_read_top_link_spd, la), |
| phba->alpa_map[0]); |
| } else { |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1303 Link Up Event x%x received " |
| "Data: x%x x%x x%x x%x x%x x%x %d\n", |
| la->eventTag, phba->fc_eventTag, |
| bf_get(lpfc_mbx_read_top_alpa_granted, |
| la), |
| bf_get(lpfc_mbx_read_top_link_spd, la), |
| phba->alpa_map[0], |
| bf_get(lpfc_mbx_read_top_mm, la), |
| bf_get(lpfc_mbx_read_top_fa, la), |
| phba->wait_4_mlo_maint_flg); |
| } |
| lpfc_mbx_process_link_up(phba, la); |
| |
| if (phba->cmf_active_mode != LPFC_CFG_OFF) |
| lpfc_cmf_signal_init(phba); |
| |
| } else if (attn_type == LPFC_ATT_LINK_DOWN || |
| attn_type == LPFC_ATT_UNEXP_WWPN) { |
| phba->fc_stat.LinkDown++; |
| if (phba->link_flag & LS_LOOPBACK_MODE) |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1308 Link Down Event in loop back mode " |
| "x%x received " |
| "Data: x%x x%x x%x\n", |
| la->eventTag, phba->fc_eventTag, |
| phba->pport->port_state, vport->fc_flag); |
| else if (attn_type == LPFC_ATT_UNEXP_WWPN) |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1313 Link Down Unexpected FA WWPN Event x%x " |
| "received Data: x%x x%x x%x x%x x%x\n", |
| la->eventTag, phba->fc_eventTag, |
| phba->pport->port_state, vport->fc_flag, |
| bf_get(lpfc_mbx_read_top_mm, la), |
| bf_get(lpfc_mbx_read_top_fa, la)); |
| else |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1305 Link Down Event x%x received " |
| "Data: x%x x%x x%x x%x x%x\n", |
| la->eventTag, phba->fc_eventTag, |
| phba->pport->port_state, vport->fc_flag, |
| bf_get(lpfc_mbx_read_top_mm, la), |
| bf_get(lpfc_mbx_read_top_fa, la)); |
| lpfc_mbx_issue_link_down(phba); |
| } |
| if (phba->sli.sli_flag & LPFC_MENLO_MAINT && |
| attn_type == LPFC_ATT_LINK_UP) { |
| if (phba->link_state != LPFC_LINK_DOWN) { |
| phba->fc_stat.LinkDown++; |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1312 Link Down Event x%x received " |
| "Data: x%x x%x x%x\n", |
| la->eventTag, phba->fc_eventTag, |
| phba->pport->port_state, vport->fc_flag); |
| lpfc_mbx_issue_link_down(phba); |
| } else |
| lpfc_enable_la(phba); |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, |
| "1310 Menlo Maint Mode Link up Event x%x rcvd " |
| "Data: x%x x%x x%x\n", |
| la->eventTag, phba->fc_eventTag, |
| phba->pport->port_state, vport->fc_flag); |
| /* |
| * The cmnd that triggered this will be waiting for this |
| * signal. |
| */ |
| /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ |
| if (phba->wait_4_mlo_maint_flg) { |
| phba->wait_4_mlo_maint_flg = 0; |
| wake_up_interruptible(&phba->wait_4_mlo_m_q); |
| } |
| } |
| |
| if ((phba->sli_rev < LPFC_SLI_REV4) && |
| bf_get(lpfc_mbx_read_top_fa, la)) { |
| if (phba->sli.sli_flag & LPFC_MENLO_MAINT) |
| lpfc_issue_clear_la(phba, vport); |
| lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, |
| "1311 fa %d\n", |
| bf_get(lpfc_mbx_read_top_fa, la)); |
| } |
| |
| lpfc_mbx_cmpl_read_topology_free_mbuf: |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /* |
| * This routine handles processing a REG_LOGIN mailbox |
| * command upon completion. It is setup in the LPFC_MBOXQ |
| * as the completion routine when the command is |
| * handed off to the SLI layer. |
| */ |
| void |
| lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); |
| struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; |
| |
| pmb->ctx_buf = NULL; |
| pmb->ctx_ndlp = NULL; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NODE | LOG_DISCOVERY, |
| "0002 rpi:%x DID:%x flg:%x %d x%px\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, |
| kref_read(&ndlp->kref), |
| ndlp); |
| if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) |
| ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; |
| |
| if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || |
| ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { |
| /* We rcvd a rscn after issuing this |
| * mbox reg login, we may have cycled |
| * back through the state and be |
| * back at reg login state so this |
| * mbox needs to be ignored becase |
| * there is another reg login in |
| * process. |
| */ |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; |
| spin_unlock_irq(&ndlp->lock); |
| |
| /* |
| * We cannot leave the RPI registered because |
| * if we go thru discovery again for this ndlp |
| * a subsequent REG_RPI will fail. |
| */ |
| ndlp->nlp_flag |= NLP_RPI_REGISTERED; |
| lpfc_unreg_rpi(vport, ndlp); |
| } |
| |
| /* Call state machine */ |
| lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); |
| |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| /* decrement the node reference count held for this callback |
| * function. |
| */ |
| lpfc_nlp_put(ndlp); |
| |
| return; |
| } |
| |
| static void |
| lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb = &pmb->u.mb; |
| struct lpfc_vport *vport = pmb->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| switch (mb->mbxStatus) { |
| case 0x0011: |
| case 0x0020: |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0911 cmpl_unreg_vpi, mb status = 0x%x\n", |
| mb->mbxStatus); |
| break; |
| /* If VPI is busy, reset the HBA */ |
| case 0x9700: |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", |
| vport->vpi, mb->mbxStatus); |
| if (!(phba->pport->load_flag & FC_UNLOADING)) |
| lpfc_workq_post_event(phba, NULL, NULL, |
| LPFC_EVT_RESET_HBA); |
| } |
| spin_lock_irq(shost->host_lock); |
| vport->vpi_state &= ~LPFC_VPI_REGISTERED; |
| vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
| spin_unlock_irq(shost->host_lock); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| lpfc_cleanup_vports_rrqs(vport, NULL); |
| /* |
| * This shost reference might have been taken at the beginning of |
| * lpfc_vport_delete() |
| */ |
| if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) |
| scsi_host_put(shost); |
| } |
| |
| int |
| lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mbox; |
| int rc; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) |
| return 1; |
| |
| lpfc_unreg_vpi(phba, vport->vpi, mbox); |
| mbox->vport = vport; |
| mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi; |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "1800 Could not issue unreg_vpi\n"); |
| mempool_free(mbox, phba->mbox_mem_pool); |
| return rc; |
| } |
| return 0; |
| } |
| |
| static void |
| lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| MAILBOX_t *mb = &pmb->u.mb; |
| |
| switch (mb->mbxStatus) { |
| case 0x0011: |
| case 0x9601: |
| case 0x9602: |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0912 cmpl_reg_vpi, mb status = 0x%x\n", |
| mb->mbxStatus); |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); |
| spin_unlock_irq(shost->host_lock); |
| vport->fc_myDID = 0; |
| |
| if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || |
| (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { |
| if (phba->nvmet_support) |
| lpfc_nvmet_update_targetport(phba); |
| else |
| lpfc_nvme_update_localport(vport); |
| } |
| goto out; |
| } |
| |
| spin_lock_irq(shost->host_lock); |
| vport->vpi_state |= LPFC_VPI_REGISTERED; |
| vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
| spin_unlock_irq(shost->host_lock); |
| vport->num_disc_nodes = 0; |
| /* go thru NPR list and issue ELS PLOGIs */ |
| if (vport->fc_npr_cnt) |
| lpfc_els_disc_plogi(vport); |
| |
| if (!vport->num_disc_nodes) { |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_NDISC_ACTIVE; |
| spin_unlock_irq(shost->host_lock); |
| lpfc_can_disctmo(vport); |
| } |
| vport->port_state = LPFC_VPORT_READY; |
| |
| out: |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_create_static_vport - Read HBA config region to create static vports. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine issue a DUMP mailbox command for config region 22 to get |
| * the list of static vports to be created. The function create vports |
| * based on the information returned from the HBA. |
| **/ |
| void |
| lpfc_create_static_vport(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *pmb = NULL; |
| MAILBOX_t *mb; |
| struct static_vport_info *vport_info; |
| int mbx_wait_rc = 0, i; |
| struct fc_vport_identifiers vport_id; |
| struct fc_vport *new_fc_vport; |
| struct Scsi_Host *shost; |
| struct lpfc_vport *vport; |
| uint16_t offset = 0; |
| uint8_t *vport_buff; |
| struct lpfc_dmabuf *mp; |
| uint32_t byte_count = 0; |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0542 lpfc_create_static_vport failed to" |
| " allocate mailbox memory\n"); |
| return; |
| } |
| memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); |
| mb = &pmb->u.mb; |
| |
| vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); |
| if (!vport_info) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0543 lpfc_create_static_vport failed to" |
| " allocate vport_info\n"); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| } |
| |
| vport_buff = (uint8_t *) vport_info; |
| do { |
| /* free dma buffer from previous round */ |
| if (pmb->ctx_buf) { |
| mp = (struct lpfc_dmabuf *)pmb->ctx_buf; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| } |
| if (lpfc_dump_static_vport(phba, pmb, offset)) |
| goto out; |
| |
| pmb->vport = phba->pport; |
| mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, |
| LPFC_MBOX_TMO); |
| |
| if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0544 lpfc_create_static_vport failed to" |
| " issue dump mailbox command ret 0x%x " |
| "status 0x%x\n", |
| mbx_wait_rc, mb->mbxStatus); |
| goto out; |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| byte_count = pmb->u.mqe.un.mb_words[5]; |
| mp = (struct lpfc_dmabuf *)pmb->ctx_buf; |
| if (byte_count > sizeof(struct static_vport_info) - |
| offset) |
| byte_count = sizeof(struct static_vport_info) |
| - offset; |
| memcpy(vport_buff + offset, mp->virt, byte_count); |
| offset += byte_count; |
| } else { |
| if (mb->un.varDmp.word_cnt > |
| sizeof(struct static_vport_info) - offset) |
| mb->un.varDmp.word_cnt = |
| sizeof(struct static_vport_info) |
| - offset; |
| byte_count = mb->un.varDmp.word_cnt; |
| lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, |
| vport_buff + offset, |
| byte_count); |
| |
| offset += byte_count; |
| } |
| |
| } while (byte_count && |
| offset < sizeof(struct static_vport_info)); |
| |
| |
| if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || |
| ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) |
| != VPORT_INFO_REV)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0545 lpfc_create_static_vport bad" |
| " information header 0x%x 0x%x\n", |
| le32_to_cpu(vport_info->signature), |
| le32_to_cpu(vport_info->rev) & |
| VPORT_INFO_REV_MASK); |
| |
| goto out; |
| } |
| |
| shost = lpfc_shost_from_vport(phba->pport); |
| |
| for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { |
| memset(&vport_id, 0, sizeof(vport_id)); |
| vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); |
| vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); |
| if (!vport_id.port_name || !vport_id.node_name) |
| continue; |
| |
| vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; |
| vport_id.vport_type = FC_PORTTYPE_NPIV; |
| vport_id.disable = false; |
| new_fc_vport = fc_vport_create(shost, 0, &vport_id); |
| |
| if (!new_fc_vport) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0546 lpfc_create_static_vport failed to" |
| " create vport\n"); |
| continue; |
| } |
| |
| vport = *(struct lpfc_vport **)new_fc_vport->dd_data; |
| vport->vport_flag |= STATIC_VPORT; |
| } |
| |
| out: |
| kfree(vport_info); |
| if (mbx_wait_rc != MBX_TIMEOUT) { |
| if (pmb->ctx_buf) { |
| mp = (struct lpfc_dmabuf *)pmb->ctx_buf; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| } |
| mempool_free(pmb, phba->mbox_mem_pool); |
| } |
| |
| return; |
| } |
| |
| /* |
| * This routine handles processing a Fabric REG_LOGIN mailbox |
| * command upon completion. It is setup in the LPFC_MBOXQ |
| * as the completion routine when the command is |
| * handed off to the SLI layer. |
| */ |
| void |
| lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| MAILBOX_t *mb = &pmb->u.mb; |
| struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); |
| struct lpfc_nodelist *ndlp; |
| struct Scsi_Host *shost; |
| |
| ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; |
| pmb->ctx_ndlp = NULL; |
| pmb->ctx_buf = NULL; |
| |
| if (mb->mbxStatus) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0258 Register Fabric login error: 0x%x\n", |
| mb->mbxStatus); |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| /* FLOGI failed, use loop map to make discovery list */ |
| lpfc_disc_list_loopmap(vport); |
| |
| /* Start discovery */ |
| lpfc_disc_start(vport); |
| /* Decrement the reference count to ndlp after the |
| * reference to the ndlp are done. |
| */ |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| /* Decrement the reference count to ndlp after the reference |
| * to the ndlp are done. |
| */ |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| if (phba->sli_rev < LPFC_SLI_REV4) |
| ndlp->nlp_rpi = mb->un.varWords[0]; |
| ndlp->nlp_flag |= NLP_RPI_REGISTERED; |
| ndlp->nlp_type |= NLP_FABRIC; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| |
| if (vport->port_state == LPFC_FABRIC_CFG_LINK) { |
| /* when physical port receive logo donot start |
| * vport discovery */ |
| if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) |
| lpfc_start_fdiscs(phba); |
| else { |
| shost = lpfc_shost_from_vport(vport); |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; |
| spin_unlock_irq(shost->host_lock); |
| } |
| lpfc_do_scr_ns_plogi(phba, vport); |
| } |
| |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| /* Drop the reference count from the mbox at the end after |
| * all the current reference to the ndlp have been done. |
| */ |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| /* |
| * This routine will issue a GID_FT for each FC4 Type supported |
| * by the driver. ALL GID_FTs must complete before discovery is started. |
| */ |
| int |
| lpfc_issue_gidft(struct lpfc_vport *vport) |
| { |
| /* Good status, issue CT Request to NameServer */ |
| if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || |
| (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) { |
| if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) { |
| /* Cannot issue NameServer FCP Query, so finish up |
| * discovery |
| */ |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0604 %s FC TYPE %x %s\n", |
| "Failed to issue GID_FT to ", |
| FC_TYPE_FCP, |
| "Finishing discovery."); |
| return 0; |
| } |
| vport->gidft_inp++; |
| } |
| |
| if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || |
| (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { |
| if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) { |
| /* Cannot issue NameServer NVME Query, so finish up |
| * discovery |
| */ |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0605 %s FC_TYPE %x %s %d\n", |
| "Failed to issue GID_FT to ", |
| FC_TYPE_NVME, |
| "Finishing discovery: gidftinp ", |
| vport->gidft_inp); |
| if (vport->gidft_inp == 0) |
| return 0; |
| } else |
| vport->gidft_inp++; |
| } |
| return vport->gidft_inp; |
| } |
| |
| /** |
| * lpfc_issue_gidpt - issue a GID_PT for all N_Ports |
| * @vport: The virtual port for which this call is being executed. |
| * |
| * This routine will issue a GID_PT to get a list of all N_Ports |
| * |
| * Return value : |
| * 0 - Failure to issue a GID_PT |
| * 1 - GID_PT issued |
| **/ |
| int |
| lpfc_issue_gidpt(struct lpfc_vport *vport) |
| { |
| /* Good status, issue CT Request to NameServer */ |
| if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) { |
| /* Cannot issue NameServer FCP Query, so finish up |
| * discovery |
| */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0606 %s Port TYPE %x %s\n", |
| "Failed to issue GID_PT to ", |
| GID_PT_N_PORT, |
| "Finishing discovery."); |
| return 0; |
| } |
| vport->gidft_inp++; |
| return 1; |
| } |
| |
| /* |
| * This routine handles processing a NameServer REG_LOGIN mailbox |
| * command upon completion. It is setup in the LPFC_MBOXQ |
| * as the completion routine when the command is |
| * handed off to the SLI layer. |
| */ |
| void |
| lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb = &pmb->u.mb; |
| struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); |
| struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; |
| struct lpfc_vport *vport = pmb->vport; |
| int rc; |
| |
| pmb->ctx_buf = NULL; |
| pmb->ctx_ndlp = NULL; |
| vport->gidft_inp = 0; |
| |
| if (mb->mbxStatus) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0260 Register NameServer error: 0x%x\n", |
| mb->mbxStatus); |
| |
| out: |
| /* decrement the node reference count held for this |
| * callback function. |
| */ |
| lpfc_nlp_put(ndlp); |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| /* If the node is not registered with the scsi or nvme |
| * transport, remove the fabric node. The failed reg_login |
| * is terminal. |
| */ |
| 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_nlp_not_used(ndlp); |
| } |
| |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| /* |
| * RegLogin failed, use loop map to make discovery |
| * list |
| */ |
| lpfc_disc_list_loopmap(vport); |
| |
| /* Start discovery */ |
| lpfc_disc_start(vport); |
| return; |
| } |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| return; |
| } |
| |
| if (phba->sli_rev < LPFC_SLI_REV4) |
| ndlp->nlp_rpi = mb->un.varWords[0]; |
| ndlp->nlp_flag |= NLP_RPI_REGISTERED; |
| ndlp->nlp_type |= NLP_FABRIC; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, |
| "0003 rpi:%x DID:%x flg:%x %d x%px\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, |
| kref_read(&ndlp->kref), |
| ndlp); |
| |
| if (vport->port_state < LPFC_VPORT_READY) { |
| /* Link up discovery requires Fabric registration. */ |
| lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0); |
| lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0); |
| lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); |
| lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0); |
| |
| if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || |
| (vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) |
| lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP); |
| |
| if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || |
| (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) |
| lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, |
| FC_TYPE_NVME); |
| |
| /* Issue SCR just before NameServer GID_FT Query */ |
| lpfc_issue_els_scr(vport, 0); |
| |
| /* Link was bounced or a Fabric LOGO occurred. Start EDC |
| * with initial FW values provided the congestion mode is |
| * not off. Note that signals may or may not be supported |
| * by the adapter but FPIN is provided by default for 1 |
| * or both missing signals support. |
| */ |
| if (phba->cmf_active_mode != LPFC_CFG_OFF) { |
| phba->cgn_reg_fpin = phba->cgn_init_reg_fpin; |
| phba->cgn_reg_signal = phba->cgn_init_reg_signal; |
| rc = lpfc_issue_els_edc(vport, 0); |
| lpfc_printf_log(phba, KERN_INFO, |
| LOG_INIT | LOG_ELS | LOG_DISCOVERY, |
| "4220 EDC issue error x%x, Data: x%x\n", |
| rc, phba->cgn_init_reg_signal); |
| } else { |
| lpfc_issue_els_rdf(vport, 0); |
| } |
| } |
| |
| vport->fc_ns_retry = 0; |
| if (lpfc_issue_gidft(vport) == 0) |
| goto out; |
| |
| /* |
| * At this point in time we may need to wait for multiple |
| * SLI_CTNS_GID_FT CT commands to complete before we start discovery. |
| * |
| * decrement the node reference count held for this |
| * callback function. |
| */ |
| lpfc_nlp_put(ndlp); |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| return; |
| } |
| |
| /* |
| * This routine handles processing a Fabric Controller REG_LOGIN mailbox |
| * command upon completion. It is setup in the LPFC_MBOXQ |
| * as the completion routine when the command is handed off to the SLI layer. |
| */ |
| void |
| lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| MAILBOX_t *mb = &pmb->u.mb; |
| struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); |
| struct lpfc_nodelist *ndlp; |
| |
| ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; |
| pmb->ctx_ndlp = NULL; |
| pmb->ctx_buf = NULL; |
| |
| if (mb->mbxStatus) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0933 %s: Register FC login error: 0x%x\n", |
| __func__, mb->mbxStatus); |
| goto out; |
| } |
| |
| lpfc_check_nlp_post_devloss(vport, ndlp); |
| |
| if (phba->sli_rev < LPFC_SLI_REV4) |
| ndlp->nlp_rpi = mb->un.varWords[0]; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n", |
| __func__, ndlp->nlp_DID, ndlp->nlp_rpi, |
| ndlp->nlp_state); |
| |
| ndlp->nlp_flag |= NLP_RPI_REGISTERED; |
| ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; |
| ndlp->nlp_type |= NLP_FABRIC; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| |
| out: |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| /* Drop the reference count from the mbox at the end after |
| * all the current reference to the ndlp have been done. |
| */ |
| lpfc_nlp_put(ndlp); |
| } |
| |
| static void |
| lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct fc_rport *rport; |
| struct lpfc_rport_data *rdata; |
| struct fc_rport_identifiers rport_ids; |
| struct lpfc_hba *phba = vport->phba; |
| unsigned long flags; |
| |
| if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) |
| return; |
| |
| /* Remote port has reappeared. Re-register w/ FC transport */ |
| rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); |
| rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); |
| rport_ids.port_id = ndlp->nlp_DID; |
| rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; |
| |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, |
| "rport add: did:x%x flg:x%x type x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); |
| |
| /* Don't add the remote port if unloading. */ |
| if (vport->load_flag & FC_UNLOADING) |
| return; |
| |
| /* |
| * Disassociate any older association between this ndlp and rport |
| */ |
| if (ndlp->rport) { |
| rdata = ndlp->rport->dd_data; |
| rdata->pnode = NULL; |
| } |
| |
| ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); |
| if (!rport) { |
| dev_printk(KERN_WARNING, &phba->pcidev->dev, |
| "Warning: fc_remote_port_add failed\n"); |
| return; |
| } |
| |
| /* Successful port add. Complete initializing node data */ |
| rport->maxframe_size = ndlp->nlp_maxframe; |
| rport->supported_classes = ndlp->nlp_class_sup; |
| rdata = rport->dd_data; |
| rdata->pnode = lpfc_nlp_get(ndlp); |
| if (!rdata->pnode) { |
| dev_warn(&phba->pcidev->dev, |
| "Warning - node ref failed. Unreg rport\n"); |
| fc_remote_port_delete(rport); |
| ndlp->rport = NULL; |
| return; |
| } |
| |
| spin_lock_irqsave(&ndlp->lock, flags); |
| ndlp->fc4_xpt_flags |= SCSI_XPT_REGD; |
| spin_unlock_irqrestore(&ndlp->lock, flags); |
| |
| if (ndlp->nlp_type & NLP_FCP_TARGET) |
| rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET; |
| if (ndlp->nlp_type & NLP_FCP_INITIATOR) |
| rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR; |
| if (ndlp->nlp_type & NLP_NVME_INITIATOR) |
| rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR; |
| if (ndlp->nlp_type & NLP_NVME_TARGET) |
| rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET; |
| if (ndlp->nlp_type & NLP_NVME_DISCOVERY) |
| rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY; |
| |
| if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) |
| fc_remote_port_rolechg(rport, rport_ids.roles); |
| |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, |
| "3183 %s rport x%px DID x%x, role x%x refcnt %d\n", |
| __func__, rport, rport->port_id, rport->roles, |
| kref_read(&ndlp->kref)); |
| |
| if ((rport->scsi_target_id != -1) && |
| (rport->scsi_target_id < LPFC_MAX_TARGET)) { |
| ndlp->nlp_sid = rport->scsi_target_id; |
| } |
| |
| return; |
| } |
| |
| static void |
| lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) |
| { |
| struct fc_rport *rport = ndlp->rport; |
| struct lpfc_vport *vport = ndlp->vport; |
| |
| if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME) |
| return; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, |
| "rport delete: did:x%x flg:x%x type x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "3184 rport unregister x%06x, rport x%px " |
| "xptflg x%x refcnt %d\n", |
| ndlp->nlp_DID, rport, ndlp->fc4_xpt_flags, |
| kref_read(&ndlp->kref)); |
| |
| fc_remote_port_delete(rport); |
| lpfc_nlp_put(ndlp); |
| } |
| |
| static void |
| lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| unsigned long iflags; |
| |
| spin_lock_irqsave(shost->host_lock, iflags); |
| switch (state) { |
| case NLP_STE_UNUSED_NODE: |
| vport->fc_unused_cnt += count; |
| break; |
| case NLP_STE_PLOGI_ISSUE: |
| vport->fc_plogi_cnt += count; |
| break; |
| case NLP_STE_ADISC_ISSUE: |
| vport->fc_adisc_cnt += count; |
| break; |
| case NLP_STE_REG_LOGIN_ISSUE: |
| vport->fc_reglogin_cnt += count; |
| break; |
| case NLP_STE_PRLI_ISSUE: |
| vport->fc_prli_cnt += count; |
| break; |
| case NLP_STE_UNMAPPED_NODE: |
| vport->fc_unmap_cnt += count; |
| break; |
| case NLP_STE_MAPPED_NODE: |
| vport->fc_map_cnt += count; |
| break; |
| case NLP_STE_NPR_NODE: |
| if (vport->fc_npr_cnt == 0 && count == -1) |
| vport->fc_npr_cnt = 0; |
| else |
| vport->fc_npr_cnt += count; |
| break; |
| } |
| spin_unlock_irqrestore(shost->host_lock, iflags); |
| } |
| |
| /* Register a node with backend if not already done */ |
| void |
| lpfc_nlp_reg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| unsigned long iflags; |
| |
| lpfc_check_nlp_post_devloss(vport, ndlp); |
| |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| if (ndlp->fc4_xpt_flags & NLP_XPT_REGD) { |
| /* Already registered with backend, trigger rescan */ |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| |
| if (ndlp->fc4_xpt_flags & NVME_XPT_REGD && |
| ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) { |
| lpfc_nvme_rescan_port(vport, ndlp); |
| } |
| return; |
| } |
| |
| ndlp->fc4_xpt_flags |= NLP_XPT_REGD; |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| |
| if (lpfc_valid_xpt_node(ndlp)) { |
| vport->phba->nport_event_cnt++; |
| /* |
| * Tell the fc transport about the port, if we haven't |
| * already. If we have, and it's a scsi entity, be |
| */ |
| lpfc_register_remote_port(vport, ndlp); |
| } |
| |
| /* We are done if we do not have any NVME remote node */ |
| if (!(ndlp->nlp_fc4_type & NLP_FC4_NVME)) |
| return; |
| |
| /* Notify the NVME transport of this new rport. */ |
| if (vport->phba->sli_rev >= LPFC_SLI_REV4 && |
| ndlp->nlp_fc4_type & NLP_FC4_NVME) { |
| if (vport->phba->nvmet_support == 0) { |
| /* Register this rport with the transport. |
| * Only NVME Target Rports are registered with |
| * the transport. |
| */ |
| if (ndlp->nlp_type & NLP_NVME_TARGET) { |
| vport->phba->nport_event_cnt++; |
| lpfc_nvme_register_port(vport, ndlp); |
| } |
| } else { |
| /* Just take an NDLP ref count since the |
| * target does not register rports. |
| */ |
| lpfc_nlp_get(ndlp); |
| } |
| } |
| } |
| |
| /* Unregister a node with backend if not already done */ |
| void |
| lpfc_nlp_unreg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| unsigned long iflags; |
| |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| if (!(ndlp->fc4_xpt_flags & NLP_XPT_REGD)) { |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
| "0999 %s Not regd: ndlp x%px rport x%px DID " |
| "x%x FLG x%x XPT x%x\n", |
| __func__, ndlp, ndlp->rport, ndlp->nlp_DID, |
| ndlp->nlp_flag, ndlp->fc4_xpt_flags); |
| return; |
| } |
| |
| ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD; |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| |
| if (ndlp->rport && |
| ndlp->fc4_xpt_flags & SCSI_XPT_REGD) { |
| vport->phba->nport_event_cnt++; |
| lpfc_unregister_remote_port(ndlp); |
| } else if (!ndlp->rport) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
| "1999 %s NDLP in devloss x%px DID x%x FLG x%x" |
| " XPT x%x refcnt %d\n", |
| __func__, ndlp, ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->fc4_xpt_flags, |
| kref_read(&ndlp->kref)); |
| } |
| |
| if (ndlp->fc4_xpt_flags & NVME_XPT_REGD) { |
| vport->phba->nport_event_cnt++; |
| if (vport->phba->nvmet_support == 0) { |
| /* Start devloss if target. */ |
| if (ndlp->nlp_type & NLP_NVME_TARGET) |
| lpfc_nvme_unregister_port(vport, ndlp); |
| } else { |
| /* NVMET has no upcall. */ |
| lpfc_nlp_put(ndlp); |
| } |
| } |
| |
| } |
| |
| /* |
| * Adisc state change handling |
| */ |
| static void |
| lpfc_handle_adisc_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| int new_state) |
| { |
| switch (new_state) { |
| /* |
| * Any state to ADISC_ISSUE |
| * Do nothing, adisc cmpl handling will trigger state changes |
| */ |
| case NLP_STE_ADISC_ISSUE: |
| break; |
| |
| /* |
| * ADISC_ISSUE to mapped states |
| * Trigger a registration with backend, it will be nop if |
| * already registered |
| */ |
| case NLP_STE_UNMAPPED_NODE: |
| ndlp->nlp_type |= NLP_FC_NODE; |
| fallthrough; |
| case NLP_STE_MAPPED_NODE: |
| ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; |
| lpfc_nlp_reg_node(vport, ndlp); |
| break; |
| |
| /* |
| * ADISC_ISSUE to non-mapped states |
| * We are moving from ADISC_ISSUE to a non-mapped state because |
| * ADISC failed, we would have skipped unregistering with |
| * backend, attempt it now |
| */ |
| case NLP_STE_NPR_NODE: |
| ndlp->nlp_flag &= ~NLP_RCV_PLOGI; |
| fallthrough; |
| default: |
| lpfc_nlp_unreg_node(vport, ndlp); |
| break; |
| } |
| |
| } |
| |
| static void |
| lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| int old_state, int new_state) |
| { |
| /* Trap ADISC changes here */ |
| if (new_state == NLP_STE_ADISC_ISSUE || |
| old_state == NLP_STE_ADISC_ISSUE) { |
| lpfc_handle_adisc_state(vport, ndlp, new_state); |
| return; |
| } |
| |
| if (new_state == NLP_STE_UNMAPPED_NODE) { |
| ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; |
| ndlp->nlp_type |= NLP_FC_NODE; |
| } |
| if (new_state == NLP_STE_MAPPED_NODE) |
| ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; |
| if (new_state == NLP_STE_NPR_NODE) |
| ndlp->nlp_flag &= ~NLP_RCV_PLOGI; |
| |
| /* Reg/Unreg for FCP and NVME Transport interface */ |
| if ((old_state == NLP_STE_MAPPED_NODE || |
| old_state == NLP_STE_UNMAPPED_NODE)) { |
| /* For nodes marked for ADISC, Handle unreg in ADISC cmpl |
| * if linkup. In linkdown do unreg_node |
| */ |
| if (!(ndlp->nlp_flag & NLP_NPR_ADISC) || |
| !lpfc_is_link_up(vport->phba)) |
| lpfc_nlp_unreg_node(vport, ndlp); |
| } |
| |
| if (new_state == NLP_STE_MAPPED_NODE || |
| new_state == NLP_STE_UNMAPPED_NODE) |
| lpfc_nlp_reg_node(vport, ndlp); |
| |
| if ((new_state == NLP_STE_MAPPED_NODE) && |
| (vport->stat_data_enabled)) { |
| /* |
| * A new target is discovered, if there is no buffer for |
| * statistical data collection allocate buffer. |
| */ |
| ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, |
| sizeof(struct lpfc_scsicmd_bkt), |
| GFP_KERNEL); |
| |
| if (!ndlp->lat_data) |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "0286 lpfc_nlp_state_cleanup failed to " |
| "allocate statistical data buffer DID " |
| "0x%x\n", ndlp->nlp_DID); |
| } |
| /* |
| * If the node just added to Mapped list was an FCP target, |
| * but the remote port registration failed or assigned a target |
| * id outside the presentable range - move the node to the |
| * Unmapped List. |
| */ |
| if ((new_state == NLP_STE_MAPPED_NODE) && |
| (ndlp->nlp_type & NLP_FCP_TARGET) && |
| (!ndlp->rport || |
| ndlp->rport->scsi_target_id == -1 || |
| ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) { |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_TGT_NO_SCSIID; |
| spin_unlock_irq(&ndlp->lock); |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| } |
| } |
| |
| static char * |
| lpfc_nlp_state_name(char *buffer, size_t size, int state) |
| { |
| static char *states[] = { |
| [NLP_STE_UNUSED_NODE] = "UNUSED", |
| [NLP_STE_PLOGI_ISSUE] = "PLOGI", |
| [NLP_STE_ADISC_ISSUE] = "ADISC", |
| [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", |
| [NLP_STE_PRLI_ISSUE] = "PRLI", |
| [NLP_STE_LOGO_ISSUE] = "LOGO", |
| [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", |
| [NLP_STE_MAPPED_NODE] = "MAPPED", |
| [NLP_STE_NPR_NODE] = "NPR", |
| }; |
| |
| if (state < NLP_STE_MAX_STATE && states[state]) |
| strlcpy(buffer, states[state], size); |
| else |
| snprintf(buffer, size, "unknown (%d)", state); |
| return buffer; |
| } |
| |
| void |
| lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| int state) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| int old_state = ndlp->nlp_state; |
| int node_dropped = ndlp->nlp_flag & NLP_DROPPED; |
| char name1[16], name2[16]; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0904 NPort state transition x%06x, %s -> %s\n", |
| ndlp->nlp_DID, |
| lpfc_nlp_state_name(name1, sizeof(name1), old_state), |
| lpfc_nlp_state_name(name2, sizeof(name2), state)); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, |
| "node statechg did:x%x old:%d ste:%d", |
| ndlp->nlp_DID, old_state, state); |
| |
| if (node_dropped && old_state == NLP_STE_UNUSED_NODE && |
| state != NLP_STE_UNUSED_NODE) { |
| ndlp->nlp_flag &= ~NLP_DROPPED; |
| lpfc_nlp_get(ndlp); |
| } |
| |
| if (old_state == NLP_STE_NPR_NODE && |
| state != NLP_STE_NPR_NODE) |
| lpfc_cancel_retry_delay_tmo(vport, ndlp); |
| if (old_state == NLP_STE_UNMAPPED_NODE) { |
| ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID; |
| ndlp->nlp_type &= ~NLP_FC_NODE; |
| } |
| |
| if (list_empty(&ndlp->nlp_listp)) { |
| spin_lock_irq(shost->host_lock); |
| list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); |
| spin_unlock_irq(shost->host_lock); |
| } else if (old_state) |
| lpfc_nlp_counters(vport, old_state, -1); |
| |
| ndlp->nlp_state = state; |
| lpfc_nlp_counters(vport, state, 1); |
| lpfc_nlp_state_cleanup(vport, ndlp, old_state, state); |
| } |
| |
| void |
| lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| if (list_empty(&ndlp->nlp_listp)) { |
| spin_lock_irq(shost->host_lock); |
| list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes); |
| spin_unlock_irq(shost->host_lock); |
| } |
| } |
| |
| void |
| lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| lpfc_cancel_retry_delay_tmo(vport, ndlp); |
| if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) |
| lpfc_nlp_counters(vport, ndlp->nlp_state, -1); |
| spin_lock_irq(shost->host_lock); |
| list_del_init(&ndlp->nlp_listp); |
| spin_unlock_irq(shost->host_lock); |
| lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, |
| NLP_STE_UNUSED_NODE); |
| } |
| |
| /** |
| * lpfc_initialize_node - Initialize all fields of node object |
| * @vport: Pointer to Virtual Port object. |
| * @ndlp: Pointer to FC node object. |
| * @did: FC_ID of the node. |
| * |
| * This function is always called when node object need to be initialized. |
| * It initializes all the fields of the node object. Although the reference |
| * to phba from @ndlp can be obtained indirectly through it's reference to |
| * @vport, a direct reference to phba is taken here by @ndlp. This is due |
| * to the life-span of the @ndlp might go beyond the existence of @vport as |
| * the final release of ndlp is determined by its reference count. And, the |
| * operation on @ndlp needs the reference to phba. |
| **/ |
| static inline void |
| lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| uint32_t did) |
| { |
| INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); |
| INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); |
| timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0); |
| INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp); |
| |
| ndlp->nlp_DID = did; |
| ndlp->vport = vport; |
| ndlp->phba = vport->phba; |
| ndlp->nlp_sid = NLP_NO_SID; |
| ndlp->nlp_fc4_type = NLP_FC4_NONE; |
| kref_init(&ndlp->kref); |
| atomic_set(&ndlp->cmd_pending, 0); |
| ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; |
| ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; |
| } |
| |
| void |
| lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| /* |
| * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should |
| * be used if we wish to issue the "last" lpfc_nlp_put() to remove |
| * the ndlp from the vport. The ndlp marked as UNUSED on the list |
| * until ALL other outstanding threads have completed. We check |
| * that the ndlp not already in the UNUSED state before we proceed. |
| */ |
| if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| return; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); |
| ndlp->nlp_flag |= NLP_DROPPED; |
| if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
| lpfc_cleanup_vports_rrqs(vport, ndlp); |
| lpfc_unreg_rpi(vport, ndlp); |
| } |
| |
| lpfc_nlp_put(ndlp); |
| return; |
| } |
| |
| /* |
| * Start / ReStart rescue timer for Discovery / RSCN handling |
| */ |
| void |
| lpfc_set_disctmo(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t tmo; |
| |
| if (vport->port_state == LPFC_LOCAL_CFG_LINK) { |
| /* For FAN, timeout should be greater than edtov */ |
| tmo = (((phba->fc_edtov + 999) / 1000) + 1); |
| } else { |
| /* Normal discovery timeout should be > than ELS/CT timeout |
| * FC spec states we need 3 * ratov for CT requests |
| */ |
| tmo = ((phba->fc_ratov * 3) + 3); |
| } |
| |
| |
| if (!timer_pending(&vport->fc_disctmo)) { |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "set disc timer: tmo:x%x state:x%x flg:x%x", |
| tmo, vport->port_state, vport->fc_flag); |
| } |
| |
| mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag |= FC_DISC_TMO; |
| spin_unlock_irq(shost->host_lock); |
| |
| /* Start Discovery Timer state <hba_state> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0247 Start Discovery Timer state x%x " |
| "Data: x%x x%lx x%x x%x\n", |
| vport->port_state, tmo, |
| (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt, |
| vport->fc_adisc_cnt); |
| |
| return; |
| } |
| |
| /* |
| * Cancel rescue timer for Discovery / RSCN handling |
| */ |
| int |
| lpfc_can_disctmo(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| unsigned long iflags; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "can disc timer: state:x%x rtry:x%x flg:x%x", |
| vport->port_state, vport->fc_ns_retry, vport->fc_flag); |
| |
| /* Turn off discovery timer if its running */ |
| if (vport->fc_flag & FC_DISC_TMO || |
| timer_pending(&vport->fc_disctmo)) { |
| spin_lock_irqsave(shost->host_lock, iflags); |
| vport->fc_flag &= ~FC_DISC_TMO; |
| spin_unlock_irqrestore(shost->host_lock, iflags); |
| del_timer_sync(&vport->fc_disctmo); |
| spin_lock_irqsave(&vport->work_port_lock, iflags); |
| vport->work_port_events &= ~WORKER_DISC_TMO; |
| spin_unlock_irqrestore(&vport->work_port_lock, iflags); |
| } |
| |
| /* Cancel Discovery Timer state <hba_state> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0248 Cancel Discovery Timer state x%x " |
| "Data: x%x x%x x%x\n", |
| vport->port_state, vport->fc_flag, |
| vport->fc_plogi_cnt, vport->fc_adisc_cnt); |
| return 0; |
| } |
| |
| /* |
| * Check specified ring for outstanding IOCB on the SLI queue |
| * Return true if iocb matches the specified nport |
| */ |
| int |
| lpfc_check_sli_ndlp(struct lpfc_hba *phba, |
| struct lpfc_sli_ring *pring, |
| struct lpfc_iocbq *iocb, |
| struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_vport *vport = ndlp->vport; |
| u8 ulp_command; |
| u16 ulp_context; |
| u32 remote_id; |
| |
| if (iocb->vport != vport) |
| return 0; |
| |
| ulp_command = get_job_cmnd(phba, iocb); |
| ulp_context = get_job_ulpcontext(phba, iocb); |
| remote_id = get_job_els_rsp64_did(phba, iocb); |
| |
| if (pring->ringno == LPFC_ELS_RING) { |
| switch (ulp_command) { |
| case CMD_GEN_REQUEST64_CR: |
| if (iocb->context_un.ndlp == ndlp) |
| return 1; |
| fallthrough; |
| case CMD_ELS_REQUEST64_CR: |
| if (remote_id == ndlp->nlp_DID) |
| return 1; |
| fallthrough; |
| case CMD_XMIT_ELS_RSP64_CX: |
| if (iocb->context1 == (uint8_t *) ndlp) |
| return 1; |
| } |
| } else if (pring->ringno == LPFC_FCP_RING) { |
| /* Skip match check if waiting to relogin to FCP target */ |
| if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
| (ndlp->nlp_flag & NLP_DELAY_TMO)) { |
| return 0; |
| } |
| if (ulp_context == ndlp->nlp_rpi) |
| return 1; |
| } |
| return 0; |
| } |
| |
| static void |
| __lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba, |
| struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring, |
| struct list_head *dequeue_list) |
| { |
| struct lpfc_iocbq *iocb, *next_iocb; |
| |
| list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
| /* Check to see if iocb matches the nport */ |
| if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) |
| /* match, dequeue */ |
| list_move_tail(&iocb->list, dequeue_list); |
| } |
| } |
| |
| static void |
| lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba, |
| struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| uint32_t i; |
| |
| spin_lock_irq(&phba->hbalock); |
| for (i = 0; i < psli->num_rings; i++) |
| __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i], |
| dequeue_list); |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| static void |
| lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, |
| struct lpfc_nodelist *ndlp, struct list_head *dequeue_list) |
| { |
| struct lpfc_sli_ring *pring; |
| struct lpfc_queue *qp = NULL; |
| |
| spin_lock_irq(&phba->hbalock); |
| list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { |
| pring = qp->pring; |
| if (!pring) |
| continue; |
| spin_lock(&pring->ring_lock); |
| __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); |
| spin_unlock(&pring->ring_lock); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /* |
| * Free resources / clean up outstanding I/Os |
| * associated with nlp_rpi in the LPFC_NODELIST entry. |
| */ |
| static int |
| lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) |
| { |
| LIST_HEAD(completions); |
| |
| lpfc_fabric_abort_nport(ndlp); |
| |
| /* |
| * Everything that matches on txcmplq will be returned |
| * by firmware with a no rpi error. |
| */ |
| if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { |
| if (phba->sli_rev != LPFC_SLI_REV4) |
| lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions); |
| else |
| lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions); |
| } |
| |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, |
| IOERR_SLI_ABORTED); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO |
| * @phba: Pointer to HBA context object. |
| * @pmb: Pointer to mailbox object. |
| * |
| * This function will issue an ELS LOGO command after completing |
| * the UNREG_RPI. |
| **/ |
| static void |
| lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| struct lpfc_nodelist *ndlp; |
| |
| ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp); |
| if (!ndlp) |
| return; |
| lpfc_issue_els_logo(vport, ndlp, 0); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| /* Check to see if there are any deferred events to process */ |
| if ((ndlp->nlp_flag & NLP_UNREG_INP) && |
| (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "1434 UNREG cmpl deferred logo x%x " |
| "on NPort x%x Data: x%x x%px\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, |
| ndlp->nlp_defer_did, ndlp); |
| |
| ndlp->nlp_flag &= ~NLP_UNREG_INP; |
| ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING; |
| lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
| } else { |
| /* NLP_RELEASE_RPI is only set for SLI4 ports. */ |
| if (ndlp->nlp_flag & NLP_RELEASE_RPI) { |
| lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_RELEASE_RPI; |
| ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; |
| spin_unlock_irq(&ndlp->lock); |
| } |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_UNREG_INP; |
| spin_unlock_irq(&ndlp->lock); |
| } |
| } |
| |
| /* |
| * Sets the mailbox completion handler to be used for the |
| * unreg_rpi command. The handler varies based on the state of |
| * the port and what will be happening to the rpi next. |
| */ |
| static void |
| lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport, |
| struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) |
| { |
| unsigned long iflags; |
| |
| /* Driver always gets a reference on the mailbox job |
| * in support of async jobs. |
| */ |
| mbox->ctx_ndlp = lpfc_nlp_get(ndlp); |
| if (!mbox->ctx_ndlp) |
| return; |
| |
| if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { |
| mbox->mbox_cmpl = lpfc_nlp_logo_unreg; |
| |
| } else if (phba->sli_rev == LPFC_SLI_REV4 && |
| (!(vport->load_flag & FC_UNLOADING)) && |
| (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= |
| LPFC_SLI_INTF_IF_TYPE_2) && |
| (kref_read(&ndlp->kref) > 0)) { |
| mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr; |
| } else { |
| if (vport->load_flag & FC_UNLOADING) { |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| spin_lock_irqsave(&ndlp->lock, iflags); |
| ndlp->nlp_flag |= NLP_RELEASE_RPI; |
| spin_unlock_irqrestore(&ndlp->lock, iflags); |
| } |
| } |
| mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| } |
| } |
| |
| /* |
| * Free rpi associated with LPFC_NODELIST entry. |
| * This routine is called from lpfc_freenode(), when we are removing |
| * a LPFC_NODELIST entry. It is also called if the driver initiates a |
| * LOGO that completes successfully, and we are waiting to PLOGI back |
| * to the remote NPort. In addition, it is called after we receive |
| * and unsolicated ELS cmd, send back a rsp, the rsp completes and |
| * we are waiting to PLOGI back to the remote NPort. |
| */ |
| int |
| lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mbox; |
| int rc, acc_plogi = 1; |
| uint16_t rpi; |
| |
| if (ndlp->nlp_flag & NLP_RPI_REGISTERED || |
| ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { |
| if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_NODE | LOG_DISCOVERY, |
| "3366 RPI x%x needs to be " |
| "unregistered nlp_flag x%x " |
| "did x%x\n", |
| ndlp->nlp_rpi, ndlp->nlp_flag, |
| ndlp->nlp_DID); |
| |
| /* If there is already an UNREG in progress for this ndlp, |
| * no need to queue up another one. |
| */ |
| if (ndlp->nlp_flag & NLP_UNREG_INP) { |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_NODE | LOG_DISCOVERY, |
| "1436 unreg_rpi SKIP UNREG x%x on " |
| "NPort x%x deferred x%x flg x%x " |
| "Data: x%px\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, |
| ndlp->nlp_defer_did, |
| ndlp->nlp_flag, ndlp); |
| goto out; |
| } |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (mbox) { |
| /* SLI4 ports require the physical rpi value. */ |
| rpi = ndlp->nlp_rpi; |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
| |
| lpfc_unreg_login(phba, vport->vpi, rpi, mbox); |
| mbox->vport = vport; |
| lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox); |
| if (!mbox->ctx_ndlp) { |
| mempool_free(mbox, phba->mbox_mem_pool); |
| return 1; |
| } |
| |
| if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr) |
| /* |
| * accept PLOGIs after unreg_rpi_cmpl |
| */ |
| acc_plogi = 0; |
| if (((ndlp->nlp_DID & Fabric_DID_MASK) != |
| Fabric_DID_MASK) && |
| (!(vport->fc_flag & FC_OFFLINE_MODE))) |
| ndlp->nlp_flag |= NLP_UNREG_INP; |
| |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_NODE | LOG_DISCOVERY, |
| "1433 unreg_rpi UNREG x%x on " |
| "NPort x%x deferred flg x%x " |
| "Data:x%px\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, |
| ndlp->nlp_flag, ndlp); |
| |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| ndlp->nlp_flag &= ~NLP_UNREG_INP; |
| mempool_free(mbox, phba->mbox_mem_pool); |
| acc_plogi = 1; |
| lpfc_nlp_put(ndlp); |
| } |
| } else { |
| lpfc_printf_vlog(vport, KERN_INFO, |
| LOG_NODE | LOG_DISCOVERY, |
| "1444 Failed to allocate mempool " |
| "unreg_rpi UNREG x%x, " |
| "DID x%x, flag x%x, " |
| "ndlp x%px\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, |
| ndlp->nlp_flag, ndlp); |
| |
| /* Because mempool_alloc failed, we |
| * will issue a LOGO here and keep the rpi alive if |
| * not unloading. |
| */ |
| if (!(vport->load_flag & FC_UNLOADING)) { |
| ndlp->nlp_flag &= ~NLP_UNREG_INP; |
| lpfc_issue_els_logo(vport, ndlp, 0); |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| lpfc_nlp_set_state(vport, ndlp, |
| NLP_STE_NPR_NODE); |
| } |
| |
| return 1; |
| } |
| lpfc_no_rpi(phba, ndlp); |
| out: |
| if (phba->sli_rev != LPFC_SLI_REV4) |
| ndlp->nlp_rpi = 0; |
| ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; |
| ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
| if (acc_plogi) |
| ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
| return 1; |
| } |
| ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
| return 0; |
| } |
| |
| /** |
| * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to unregister all the currently registered RPIs |
| * to the HBA. |
| **/ |
| void |
| lpfc_unreg_hba_rpis(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| struct lpfc_nodelist *ndlp; |
| struct Scsi_Host *shost; |
| int i; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (!vports) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2884 Vport array allocation failed \n"); |
| return; |
| } |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| shost = lpfc_shost_from_vport(vports[i]); |
| spin_lock_irq(shost->host_lock); |
| list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { |
| if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { |
| /* The mempool_alloc might sleep */ |
| spin_unlock_irq(shost->host_lock); |
| lpfc_unreg_rpi(vports[i], ndlp); |
| spin_lock_irq(shost->host_lock); |
| } |
| } |
| spin_unlock_irq(shost->host_lock); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| void |
| lpfc_unreg_all_rpis(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mbox; |
| int rc; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| lpfc_sli4_unreg_all_rpis(vport); |
| return; |
| } |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (mbox) { |
| lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, |
| mbox); |
| mbox->vport = vport; |
| mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| mbox->ctx_ndlp = NULL; |
| rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
| if (rc != MBX_TIMEOUT) |
| mempool_free(mbox, phba->mbox_mem_pool); |
| |
| if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "1836 Could not issue " |
| "unreg_login(all_rpis) status %d\n", |
| rc); |
| } |
| } |
| |
| void |
| lpfc_unreg_default_rpis(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mbox; |
| int rc; |
| |
| /* Unreg DID is an SLI3 operation. */ |
| if (phba->sli_rev > LPFC_SLI_REV3) |
| return; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (mbox) { |
| lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, |
| mbox); |
| mbox->vport = vport; |
| mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| mbox->ctx_ndlp = NULL; |
| rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
| if (rc != MBX_TIMEOUT) |
| mempool_free(mbox, phba->mbox_mem_pool); |
| |
| if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
| "1815 Could not issue " |
| "unreg_did (default rpis) status %d\n", |
| rc); |
| } |
| } |
| |
| /* |
| * Free resources associated with LPFC_NODELIST entry |
| * so it can be freed. |
| */ |
| static int |
| lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *mb, *nextmb; |
| struct lpfc_dmabuf *mp; |
| |
| /* Cleanup node for NPort <nlp_DID> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0900 Cleanup node for NPort x%x " |
| "Data: x%x x%x x%x\n", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, ndlp->nlp_rpi); |
| lpfc_dequeue_node(vport, ndlp); |
| |
| /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ |
| |
| /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ |
| if ((mb = phba->sli.mbox_active)) { |
| if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && |
| !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && |
| (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { |
| mb->ctx_ndlp = NULL; |
| mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| } |
| } |
| |
| spin_lock_irq(&phba->hbalock); |
| /* Cleanup REG_LOGIN completions which are not yet processed */ |
| list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { |
| if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || |
| (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || |
| (ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp)) |
| continue; |
| |
| mb->ctx_ndlp = NULL; |
| mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| } |
| |
| list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { |
| if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && |
| !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && |
| (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { |
| mp = (struct lpfc_dmabuf *)(mb->ctx_buf); |
| if (mp) { |
| __lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| } |
| list_del(&mb->list); |
| mempool_free(mb, phba->mbox_mem_pool); |
| /* We shall not invoke the lpfc_nlp_put to decrement |
| * the ndlp reference count as we are in the process |
| * of lpfc_nlp_release. |
| */ |
| } |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| lpfc_els_abort(phba, ndlp); |
| |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag &= ~NLP_DELAY_TMO; |
| spin_unlock_irq(&ndlp->lock); |
| |
| ndlp->nlp_last_elscmd = 0; |
| del_timer_sync(&ndlp->nlp_delayfunc); |
| |
| list_del_init(&ndlp->els_retry_evt.evt_listp); |
| list_del_init(&ndlp->dev_loss_evt.evt_listp); |
| list_del_init(&ndlp->recovery_evt.evt_listp); |
| lpfc_cleanup_vports_rrqs(vport, ndlp); |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| ndlp->nlp_flag |= NLP_RELEASE_RPI; |
| |
| return 0; |
| } |
| |
| static int |
| lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| uint32_t did) |
| { |
| D_ID mydid, ndlpdid, matchdid; |
| |
| if (did == Bcast_DID) |
| return 0; |
| |
| /* First check for Direct match */ |
| if (ndlp->nlp_DID == did) |
| return 1; |
| |
| /* Next check for area/domain identically equals 0 match */ |
| mydid.un.word = vport->fc_myDID; |
| if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) { |
| return 0; |
| } |
| |
| matchdid.un.word = did; |
| ndlpdid.un.word = ndlp->nlp_DID; |
| if (matchdid.un.b.id == ndlpdid.un.b.id) { |
| if ((mydid.un.b.domain == matchdid.un.b.domain) && |
| (mydid.un.b.area == matchdid.un.b.area)) { |
| /* This code is supposed to match the ID |
| * for a private loop device that is |
| * connect to fl_port. But we need to |
| * check that the port did not just go |
| * from pt2pt to fabric or we could end |
| * up matching ndlp->nlp_DID 000001 to |
| * fabric DID 0x20101 |
| */ |
| if ((ndlpdid.un.b.domain == 0) && |
| (ndlpdid.un.b.area == 0)) { |
| if (ndlpdid.un.b.id && |
| vport->phba->fc_topology == |
| LPFC_TOPOLOGY_LOOP) |
| return 1; |
| } |
| return 0; |
| } |
| |
| matchdid.un.word = ndlp->nlp_DID; |
| if ((mydid.un.b.domain == ndlpdid.un.b.domain) && |
| (mydid.un.b.area == ndlpdid.un.b.area)) { |
| if ((matchdid.un.b.domain == 0) && |
| (matchdid.un.b.area == 0)) { |
| if (matchdid.un.b.id) |
| return 1; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| /* Search for a nodelist entry */ |
| static struct lpfc_nodelist * |
| __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) |
| { |
| struct lpfc_nodelist *ndlp; |
| uint32_t data1; |
| |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| if (lpfc_matchdid(vport, ndlp, did)) { |
| data1 = (((uint32_t)ndlp->nlp_state << 24) | |
| ((uint32_t)ndlp->nlp_xri << 16) | |
| ((uint32_t)ndlp->nlp_type << 8) |
| ); |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0929 FIND node DID " |
| "Data: x%px x%x x%x x%x x%x x%px\n", |
| ndlp, ndlp->nlp_DID, |
| ndlp->nlp_flag, data1, ndlp->nlp_rpi, |
| ndlp->active_rrqs_xri_bitmap); |
| return ndlp; |
| } |
| } |
| |
| /* FIND node did <did> NOT FOUND */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0932 FIND node did x%x NOT FOUND.\n", did); |
| return NULL; |
| } |
| |
| struct lpfc_nodelist * |
| lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_nodelist *ndlp; |
| unsigned long iflags; |
| |
| spin_lock_irqsave(shost->host_lock, iflags); |
| ndlp = __lpfc_findnode_did(vport, did); |
| spin_unlock_irqrestore(shost->host_lock, iflags); |
| return ndlp; |
| } |
| |
| struct lpfc_nodelist * |
| lpfc_findnode_mapped(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_nodelist *ndlp; |
| uint32_t data1; |
| unsigned long iflags; |
| |
| spin_lock_irqsave(shost->host_lock, iflags); |
| |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE || |
| ndlp->nlp_state == NLP_STE_MAPPED_NODE) { |
| data1 = (((uint32_t)ndlp->nlp_state << 24) | |
| ((uint32_t)ndlp->nlp_xri << 16) | |
| ((uint32_t)ndlp->nlp_type << 8) | |
| ((uint32_t)ndlp->nlp_rpi & 0xff)); |
| spin_unlock_irqrestore(shost->host_lock, iflags); |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "2025 FIND node DID " |
| "Data: x%px x%x x%x x%x x%px\n", |
| ndlp, ndlp->nlp_DID, |
| ndlp->nlp_flag, data1, |
| ndlp->active_rrqs_xri_bitmap); |
| return ndlp; |
| } |
| } |
| spin_unlock_irqrestore(shost->host_lock, iflags); |
| |
| /* FIND node did <did> NOT FOUND */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "2026 FIND mapped did NOT FOUND.\n"); |
| return NULL; |
| } |
| |
| struct lpfc_nodelist * |
| lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| ndlp = lpfc_findnode_did(vport, did); |
| if (!ndlp) { |
| if (vport->phba->nvmet_support) |
| return NULL; |
| if ((vport->fc_flag & FC_RSCN_MODE) != 0 && |
| lpfc_rscn_payload_check(vport, did) == 0) |
| return NULL; |
| ndlp = lpfc_nlp_init(vport, did); |
| if (!ndlp) |
| return NULL; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "6453 Setup New Node 2B_DISC x%x " |
| "Data:x%x x%x x%x\n", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, vport->fc_flag); |
| |
| spin_lock_irq(&ndlp->lock); |
| ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
| spin_unlock_irq(&ndlp->lock); |
| return ndlp; |
| } |
| |
| /* The NVME Target does not want to actively manage an rport. |
| * The goal is to allow the target to reset its state and clear |
| * pending IO in preparation for the initiator to recover. |
| */ |
| if ((vport->fc_flag & FC_RSCN_MODE) && |
| !(vport->fc_flag & FC_NDISC_ACTIVE)) { |
| if (lpfc_rscn_payload_check(vport, did)) { |
| |
| /* Since this node is marked for discovery, |
| * delay timeout is not needed. |
| */ |
| lpfc_cancel_retry_delay_tmo(vport, ndlp); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "6455 Setup RSCN Node 2B_DISC x%x " |
| "Data:x%x x%x x%x\n", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, vport->fc_flag); |
| |
| /* NVME Target mode waits until rport is known to be |
| * impacted by the RSCN before it transitions. No |
| * active management - just go to NPR provided the |
| * node had a valid login. |
| */ |
| if (vport->phba->nvmet_support) |
| return ndlp; |
| |
| /* If we've already received a PLOGI from this NPort |
| * we don't need to try to discover it again. |
| */ |
| if (ndlp->nlp_flag & NLP_RCV_PLOGI && |
| !(ndlp->nlp_type & |
| (NLP_FCP_TARGET | NLP_NVME_TARGET))) |
| return NULL; |
| |
| ndlp->nlp_prev_state = ndlp->nlp_state; |
| 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); |
| } else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "6456 Skip Setup RSCN Node x%x " |
| "Data:x%x x%x x%x\n", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, vport->fc_flag); |
| ndlp = NULL; |
| } |
| } else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "6457 Setup Active Node 2B_DISC x%x " |
| "Data:x%x x%x x%x\n", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, vport->fc_flag); |
| |
| /* If the initiator received a PLOGI from this NPort or if the |
| * initiator is already in the process of discovery on it, |
| * there's no need to try to discover it again. |
| */ |
| if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE || |
| ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || |
| (!vport->phba->nvmet_support && |
| ndlp->nlp_flag & NLP_RCV_PLOGI)) |
| return NULL; |
| |
| if (vport->phba->nvmet_support) |
| return ndlp; |
| |
| /* Moving to NPR state clears unsolicited flags and |
| * allows for rediscovery |
| */ |
| 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); |
| } |
| return ndlp; |
| } |
| |
| /* Build a list of nodes to discover based on the loopmap */ |
| void |
| lpfc_disc_list_loopmap(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| int j; |
| uint32_t alpa, index; |
| |
| if (!lpfc_is_link_up(phba)) |
| return; |
| |
| if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) |
| return; |
| |
| /* Check for loop map present or not */ |
| if (phba->alpa_map[0]) { |
| for (j = 1; j <= phba->alpa_map[0]; j++) { |
| alpa = phba->alpa_map[j]; |
| if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0)) |
| continue; |
| lpfc_setup_disc_node(vport, alpa); |
| } |
| } else { |
| /* No alpamap, so try all alpa's */ |
| for (j = 0; j < FC_MAXLOOP; j++) { |
| /* If cfg_scan_down is set, start from highest |
| * ALPA (0xef) to lowest (0x1). |
| */ |
| if (vport->cfg_scan_down) |
| index = j; |
| else |
| index = FC_MAXLOOP - j - 1; |
| alpa = lpfcAlpaArray[index]; |
| if ((vport->fc_myDID & 0xff) == alpa) |
| continue; |
| lpfc_setup_disc_node(vport, alpa); |
| } |
| } |
| return; |
| } |
| |
| /* SLI3 only */ |
| void |
| lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) |
| { |
| LPFC_MBOXQ_t *mbox; |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING]; |
| struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING]; |
| int rc; |
| |
| /* |
| * if it's not a physical port or if we already send |
| * clear_la then don't send it. |
| */ |
| if ((phba->link_state >= LPFC_CLEAR_LA) || |
| (vport->port_type != LPFC_PHYSICAL_PORT) || |
| (phba->sli_rev == LPFC_SLI_REV4)) |
| return; |
| |
| /* Link up discovery */ |
| if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { |
| phba->link_state = LPFC_CLEAR_LA; |
| lpfc_clear_la(phba, mbox); |
| mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; |
| mbox->vport = vport; |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| mempool_free(mbox, phba->mbox_mem_pool); |
| lpfc_disc_flush_list(vport); |
| extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT; |
| fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT; |
| phba->link_state = LPFC_HBA_ERROR; |
| } |
| } |
| } |
| |
| /* Reg_vpi to tell firmware to resume normal operations */ |
| void |
| lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) |
| { |
| LPFC_MBOXQ_t *regvpimbox; |
| |
| regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (regvpimbox) { |
| lpfc_reg_vpi(vport, regvpimbox); |
| regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; |
| regvpimbox->vport = vport; |
| if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) |
| == MBX_NOT_FINISHED) { |
| mempool_free(regvpimbox, phba->mbox_mem_pool); |
| } |
| } |
| } |
| |
| /* Start Link up / RSCN discovery on NPR nodes */ |
| void |
| lpfc_disc_start(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t num_sent; |
| uint32_t clear_la_pending; |
| |
| if (!lpfc_is_link_up(phba)) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
| "3315 Link is not up %x\n", |
| phba->link_state); |
| return; |
| } |
| |
| if (phba->link_state == LPFC_CLEAR_LA) |
| clear_la_pending = 1; |
| else |
| clear_la_pending = 0; |
| |
| if (vport->port_state < LPFC_VPORT_READY) |
| vport->port_state = LPFC_DISC_AUTH; |
| |
| lpfc_set_disctmo(vport); |
| |
| vport->fc_prevDID = vport->fc_myDID; |
| vport->num_disc_nodes = 0; |
| |
| /* Start Discovery state <hba_state> */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0202 Start Discovery port state x%x " |
| "flg x%x Data: x%x x%x x%x\n", |
| vport->port_state, vport->fc_flag, vport->fc_plogi_cnt, |
| vport->fc_adisc_cnt, vport->fc_npr_cnt); |
| |
| /* First do ADISCs - if any */ |
| num_sent = lpfc_els_disc_adisc(vport); |
| |
| if (num_sent) |
| return; |
| |
| /* Register the VPI for SLI3, NPIV only. */ |
| if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
| !(vport->fc_flag & FC_PT2PT) && |
| !(vport->fc_flag & FC_RSCN_MODE) && |
| (phba->sli_rev < LPFC_SLI_REV4)) { |
| 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 && !clear_la_pending) { |
| /* If we get here, there is nothing to ADISC */ |
| lpfc_issue_clear_la(phba, vport); |
| |
| if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { |
| vport->num_disc_nodes = 0; |
| /* go thru NPR nodes and issue ELS PLOGIs */ |
| if (vport->fc_npr_cnt) |
| lpfc_els_disc_plogi(vport); |
| |
| if (!vport->num_disc_nodes) { |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_NDISC_ACTIVE; |
| spin_unlock_irq(shost->host_lock); |
| lpfc_can_disctmo(vport); |
| } |
| } |
| vport->port_state = LPFC_VPORT_READY; |
| } else { |
| /* Next do PLOGIs - if any */ |
| num_sent = lpfc_els_disc_plogi(vport); |
| |
| if (num_sent) |
| return; |
| |
| if (vport->fc_flag & FC_RSCN_MODE) { |
| /* Check to see if more RSCNs came in while we |
| * were processing this one. |
| */ |
| if ((vport->fc_rscn_id_cnt == 0) && |
| (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_RSCN_MODE; |
| spin_unlock_irq(shost->host_lock); |
| lpfc_can_disctmo(vport); |
| } else |
| lpfc_els_handle_rscn(vport); |
| } |
| } |
| return; |
| } |
| |
| /* |
| * Ignore completion for all IOCBs on tx and txcmpl queue for ELS |
| * ring the match the sppecified nodelist. |
| */ |
| static void |
| lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) |
| { |
| LIST_HEAD(completions); |
| struct lpfc_iocbq *iocb, *next_iocb; |
| struct lpfc_sli_ring *pring; |
| u32 ulp_command; |
| |
| pring = lpfc_phba_elsring(phba); |
| if (unlikely(!pring)) |
| return; |
| |
| /* Error matching iocb on txq or txcmplq |
| * First check the txq. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
| if (iocb->context1 != ndlp) |
| continue; |
| |
| ulp_command = get_job_cmnd(phba, iocb); |
| |
| if (ulp_command == CMD_ELS_REQUEST64_CR || |
| ulp_command == CMD_XMIT_ELS_RSP64_CX) { |
| |
| list_move_tail(&iocb->list, &completions); |
| } |
| } |
| |
| /* Next check the txcmplq */ |
| list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
| if (iocb->context1 != ndlp) |
| continue; |
| |
| ulp_command = get_job_cmnd(phba, iocb); |
| |
| if (ulp_command == CMD_ELS_REQUEST64_CR || |
| ulp_command == CMD_XMIT_ELS_RSP64_CX) { |
| lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL); |
| } |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Make sure HBA is alive */ |
| lpfc_issue_hb_tmo(phba); |
| |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, |
| IOERR_SLI_ABORTED); |
| } |
| |
| static void |
| lpfc_disc_flush_list(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| struct lpfc_hba *phba = vport->phba; |
| |
| if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) { |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, |
| nlp_listp) { |
| if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE || |
| ndlp->nlp_state == NLP_STE_ADISC_ISSUE) { |
| lpfc_free_tx(phba, ndlp); |
| } |
| } |
| } |
| } |
| |
| /* |
| * lpfc_notify_xport_npr - notifies xport of node disappearance |
| * @vport: Pointer to Virtual Port object. |
| * |
| * Transitions all ndlps to NPR state. When lpfc_nlp_set_state |
| * calls lpfc_nlp_state_cleanup, the ndlp->rport is unregistered |
| * and transport notified that the node is gone. |
| * Return Code: |
| * none |
| */ |
| static void |
| lpfc_notify_xport_npr(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, |
| nlp_listp) { |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
| } |
| } |
| void |
| lpfc_cleanup_discovery_resources(struct lpfc_vport *vport) |
| { |
| lpfc_els_flush_rscn(vport); |
| lpfc_els_flush_cmd(vport); |
| lpfc_disc_flush_list(vport); |
| if (pci_channel_offline(vport->phba->pcidev)) |
| lpfc_notify_xport_npr(vport); |
| } |
| |
| /*****************************************************************************/ |
| /* |
| * NAME: lpfc_disc_timeout |
| * |
| * FUNCTION: Fibre Channel driver discovery timeout routine. |
| * |
| * EXECUTION ENVIRONMENT: interrupt only |
| * |
| * CALLED FROM: |
| * Timer function |
| * |
| * RETURNS: |
| * none |
| */ |
| /*****************************************************************************/ |
| void |
| lpfc_disc_timeout(struct timer_list *t) |
| { |
| struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo); |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t tmo_posted; |
| unsigned long flags = 0; |
| |
| if (unlikely(!phba)) |
| return; |
| |
| spin_lock_irqsave(&vport->work_port_lock, flags); |
| tmo_posted = vport->work_port_events & WORKER_DISC_TMO; |
| if (!tmo_posted) |
| vport->work_port_events |= WORKER_DISC_TMO; |
| spin_unlock_irqrestore(&vport->work_port_lock, flags); |
| |
| if (!tmo_posted) |
| lpfc_worker_wake_up(phba); |
| return; |
| } |
| |
| static void |
| lpfc_disc_timeout_handler(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| LPFC_MBOXQ_t *initlinkmbox; |
| int rc, clrlaerr = 0; |
| |
| if (!(vport->fc_flag & FC_DISC_TMO)) |
| return; |
| |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_DISC_TMO; |
| spin_unlock_irq(shost->host_lock); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "disc timeout: state:x%x rtry:x%x flg:x%x", |
| vport->port_state, vport->fc_ns_retry, vport->fc_flag); |
| |
| switch (vport->port_state) { |
| |
| case LPFC_LOCAL_CFG_LINK: |
| /* |
| * port_state is identically LPFC_LOCAL_CFG_LINK while |
| * waiting for FAN timeout |
| */ |
| lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY, |
| "0221 FAN timeout\n"); |
| |
| /* Start discovery by sending FLOGI, clean up old rpis */ |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, |
| nlp_listp) { |
| if (ndlp->nlp_state != NLP_STE_NPR_NODE) |
| continue; |
| if (ndlp->nlp_type & NLP_FABRIC) { |
| /* Clean up the ndlp on Fabric connections */ |
| lpfc_drop_node(vport, ndlp); |
| |
| } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { |
| /* Fail outstanding IO now since device |
| * is marked for PLOGI. |
| */ |
| lpfc_unreg_rpi(vport, ndlp); |
| } |
| } |
| if (vport->port_state != LPFC_FLOGI) { |
| if (phba->sli_rev <= LPFC_SLI_REV3) |
| lpfc_initial_flogi(vport); |
| else |
| lpfc_issue_init_vfi(vport); |
| return; |
| } |
| break; |
| |
| case LPFC_FDISC: |
| case LPFC_FLOGI: |
| /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */ |
| /* Initial FLOGI timeout */ |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0222 Initial %s timeout\n", |
| vport->vpi ? "FDISC" : "FLOGI"); |
| |
| /* Assume no Fabric and go on with discovery. |
| * Check for outstanding ELS FLOGI to abort. |
| */ |
| |
| /* FLOGI failed, so just use loop map to make discovery list */ |
| lpfc_disc_list_loopmap(vport); |
| |
| /* Start discovery */ |
| lpfc_disc_start(vport); |
| break; |
| |
| case LPFC_FABRIC_CFG_LINK: |
| /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for |
| NameServer login */ |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0223 Timeout while waiting for " |
| "NameServer login\n"); |
| /* Next look for NameServer ndlp */ |
| ndlp = lpfc_findnode_did(vport, NameServer_DID); |
| if (ndlp) |
| lpfc_els_abort(phba, ndlp); |
| |
| /* ReStart discovery */ |
| goto restart_disc; |
| |
| case LPFC_NS_QRY: |
| /* Check for wait for NameServer Rsp timeout */ |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0224 NameServer Query timeout " |
| "Data: x%x x%x\n", |
| vport->fc_ns_retry, LPFC_MAX_NS_RETRY); |
| |
| if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) { |
| /* Try it one more time */ |
| vport->fc_ns_retry++; |
| vport->gidft_inp = 0; |
| rc = lpfc_issue_gidft(vport); |
| if (rc == 0) |
| break; |
| } |
| vport->fc_ns_retry = 0; |
| |
| restart_disc: |
| /* |
| * Discovery is over. |
| * set port_state to PORT_READY if SLI2. |
| * cmpl_reg_vpi will set port_state to READY for SLI3. |
| */ |
| if (phba->sli_rev < LPFC_SLI_REV4) { |
| if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) |
| lpfc_issue_reg_vpi(phba, vport); |
| else { |
| lpfc_issue_clear_la(phba, vport); |
| vport->port_state = LPFC_VPORT_READY; |
| } |
| } |
| |
| /* Setup and issue mailbox INITIALIZE LINK command */ |
| initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!initlinkmbox) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0206 Device Discovery " |
| "completion error\n"); |
| phba->link_state = LPFC_HBA_ERROR; |
| break; |
| } |
| |
| lpfc_linkdown(phba); |
| lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, |
| phba->cfg_link_speed); |
| initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
| initlinkmbox->vport = vport; |
| initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); |
| lpfc_set_loopback_flag(phba); |
| if (rc == MBX_NOT_FINISHED) |
| mempool_free(initlinkmbox, phba->mbox_mem_pool); |
| |
| break; |
| |
| case LPFC_DISC_AUTH: |
| /* Node Authentication timeout */ |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0227 Node Authentication timeout\n"); |
| lpfc_disc_flush_list(vport); |
| |
| /* |
| * set port_state to PORT_READY if SLI2. |
| * cmpl_reg_vpi will set port_state to READY for SLI3. |
| */ |
| if (phba->sli_rev < LPFC_SLI_REV4) { |
| if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) |
| lpfc_issue_reg_vpi(phba, vport); |
| else { /* NPIV Not enabled */ |
| lpfc_issue_clear_la(phba, vport); |
| vport->port_state = LPFC_VPORT_READY; |
| } |
| } |
| break; |
| |
| case LPFC_VPORT_READY: |
| if (vport->fc_flag & FC_RSCN_MODE) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0231 RSCN timeout Data: x%x " |
| "x%x\n", |
| vport->fc_ns_retry, LPFC_MAX_NS_RETRY); |
| |
| /* Cleanup any outstanding ELS commands */ |
| lpfc_els_flush_cmd(vport); |
| |
| lpfc_els_flush_rscn(vport); |
| lpfc_disc_flush_list(vport); |
| } |
| break; |
| |
| default: |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0273 Unexpected discovery timeout, " |
| "vport State x%x\n", vport->port_state); |
| break; |
| } |
| |
| switch (phba->link_state) { |
| case LPFC_CLEAR_LA: |
| /* CLEAR LA timeout */ |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0228 CLEAR LA timeout\n"); |
| clrlaerr = 1; |
| break; |
| |
| case LPFC_LINK_UP: |
| lpfc_issue_clear_la(phba, vport); |
| fallthrough; |
| case LPFC_LINK_UNKNOWN: |
| case LPFC_WARM_START: |
| case LPFC_INIT_START: |
| case LPFC_INIT_MBX_CMDS: |
| case LPFC_LINK_DOWN: |
| case LPFC_HBA_ERROR: |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0230 Unexpected timeout, hba link " |
| "state x%x\n", phba->link_state); |
| clrlaerr = 1; |
| break; |
| |
| case LPFC_HBA_READY: |
| break; |
| } |
| |
| if (clrlaerr) { |
| lpfc_disc_flush_list(vport); |
| if (phba->sli_rev != LPFC_SLI_REV4) { |
| psli->sli3_ring[(LPFC_EXTRA_RING)].flag &= |
| ~LPFC_STOP_IOCB_EVENT; |
| psli->sli3_ring[LPFC_FCP_RING].flag &= |
| ~LPFC_STOP_IOCB_EVENT; |
| } |
| vport->port_state = LPFC_VPORT_READY; |
| } |
| return; |
| } |
| |
| /* |
| * This routine handles processing a NameServer REG_LOGIN mailbox |
| * command upon completion. It is setup in the LPFC_MBOXQ |
| * as the completion routine when the command is |
| * handed off to the SLI layer. |
| */ |
| void |
| lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb = &pmb->u.mb; |
| struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf); |
| struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp; |
| struct lpfc_vport *vport = pmb->vport; |
| |
| pmb->ctx_buf = NULL; |
| pmb->ctx_ndlp = NULL; |
| |
| if (phba->sli_rev < LPFC_SLI_REV4) |
| ndlp->nlp_rpi = mb->un.varWords[0]; |
| ndlp->nlp_flag |= NLP_RPI_REGISTERED; |
| ndlp->nlp_type |= NLP_FABRIC; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, |
| "0004 rpi:%x DID:%x flg:%x %d x%px\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag, |
| kref_read(&ndlp->kref), |
| ndlp); |
| /* |
| * Start issuing Fabric-Device Management Interface (FDMI) command to |
| * 0xfffffa (FDMI well known port). |
| * DHBA -> DPRT -> RHBA -> RPA (physical port) |
| * DPRT -> RPRT (vports) |
| */ |
| if (vport->port_type == LPFC_PHYSICAL_PORT) { |
| phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */ |
| lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0); |
| } else { |
| lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0); |
| } |
| |
| |
| /* decrement the node reference count held for this callback |
| * function. |
| */ |
| lpfc_nlp_put(ndlp); |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| return; |
| } |
| |
| static int |
| lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) |
| { |
| uint16_t *rpi = param; |
| |
| return ndlp->nlp_rpi == *rpi; |
| } |
| |
| static int |
| lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param) |
| { |
| return memcmp(&ndlp->nlp_portname, param, |
| sizeof(ndlp->nlp_portname)) == 0; |
| } |
| |
| static struct lpfc_nodelist * |
| __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| if (filter(ndlp, param)) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "3185 FIND node filter %ps DID " |
| "ndlp x%px did x%x flg x%x st x%x " |
| "xri x%x type x%x rpi x%x\n", |
| filter, ndlp, ndlp->nlp_DID, |
| ndlp->nlp_flag, ndlp->nlp_state, |
| ndlp->nlp_xri, ndlp->nlp_type, |
| ndlp->nlp_rpi); |
| return ndlp; |
| } |
| } |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "3186 FIND node filter %ps NOT FOUND.\n", filter); |
| return NULL; |
| } |
| |
| /* |
| * This routine looks up the ndlp lists for the given RPI. If rpi found it |
| * returns the node list element pointer else return NULL. |
| */ |
| struct lpfc_nodelist * |
| __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) |
| { |
| return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); |
| } |
| |
| /* |
| * This routine looks up the ndlp lists for the given WWPN. If WWPN found it |
| * returns the node element list pointer else return NULL. |
| */ |
| struct lpfc_nodelist * |
| lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_nodelist *ndlp; |
| |
| spin_lock_irq(shost->host_lock); |
| ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); |
| spin_unlock_irq(shost->host_lock); |
| return ndlp; |
| } |
| |
| /* |
| * This routine looks up the ndlp lists for the given RPI. If the rpi |
| * is found, the routine returns the node element list pointer else |
| * return NULL. |
| */ |
| struct lpfc_nodelist * |
| lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_nodelist *ndlp; |
| unsigned long flags; |
| |
| spin_lock_irqsave(shost->host_lock, flags); |
| ndlp = __lpfc_findnode_rpi(vport, rpi); |
| spin_unlock_irqrestore(shost->host_lock, flags); |
| return ndlp; |
| } |
| |
| /** |
| * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier |
| * @phba: pointer to lpfc hba data structure. |
| * @vpi: the physical host virtual N_Port identifier. |
| * |
| * This routine finds a vport on a HBA (referred by @phba) through a |
| * @vpi. The function walks the HBA's vport list and returns the address |
| * of the vport with the matching @vpi. |
| * |
| * Return code |
| * NULL - No vport with the matching @vpi found |
| * Otherwise - Address to the vport with the matching @vpi. |
| **/ |
| struct lpfc_vport * |
| lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) |
| { |
| struct lpfc_vport *vport; |
| unsigned long flags; |
| int i = 0; |
| |
| /* The physical ports are always vpi 0 - translate is unnecessary. */ |
| if (vpi > 0) { |
| /* |
| * Translate the physical vpi to the logical vpi. The |
| * vport stores the logical vpi. |
| */ |
| for (i = 0; i <= phba->max_vpi; i++) { |
| if (vpi == phba->vpi_ids[i]) |
| break; |
| } |
| |
| if (i > phba->max_vpi) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2936 Could not find Vport mapped " |
| "to vpi %d\n", vpi); |
| return NULL; |
| } |
| } |
| |
| spin_lock_irqsave(&phba->port_list_lock, flags); |
| list_for_each_entry(vport, &phba->port_list, listentry) { |
| if (vport->vpi == i) { |
| spin_unlock_irqrestore(&phba->port_list_lock, flags); |
| return vport; |
| } |
| } |
| spin_unlock_irqrestore(&phba->port_list_lock, flags); |
| return NULL; |
| } |
| |
| struct lpfc_nodelist * |
| lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did) |
| { |
| struct lpfc_nodelist *ndlp; |
| int rpi = LPFC_RPI_ALLOC_ERROR; |
| |
| if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
| rpi = lpfc_sli4_alloc_rpi(vport->phba); |
| if (rpi == LPFC_RPI_ALLOC_ERROR) |
| return NULL; |
| } |
| |
| ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL); |
| if (!ndlp) { |
| if (vport->phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_free_rpi(vport->phba, rpi); |
| return NULL; |
| } |
| |
| memset(ndlp, 0, sizeof (struct lpfc_nodelist)); |
| |
| spin_lock_init(&ndlp->lock); |
| |
| lpfc_initialize_node(vport, ndlp, did); |
| INIT_LIST_HEAD(&ndlp->nlp_listp); |
| if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
| ndlp->nlp_rpi = rpi; |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY, |
| "0007 Init New ndlp x%px, rpi:x%x DID:%x " |
| "flg:x%x refcnt:%d\n", |
| ndlp, ndlp->nlp_rpi, ndlp->nlp_DID, |
| ndlp->nlp_flag, kref_read(&ndlp->kref)); |
| |
| ndlp->active_rrqs_xri_bitmap = |
| mempool_alloc(vport->phba->active_rrq_pool, |
| GFP_KERNEL); |
| if (ndlp->active_rrqs_xri_bitmap) |
| memset(ndlp->active_rrqs_xri_bitmap, 0, |
| ndlp->phba->cfg_rrq_xri_bitmap_sz); |
| } |
| |
| |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, |
| "node init: did:x%x", |
| ndlp->nlp_DID, 0, 0); |
| |
| return ndlp; |
| } |
| |
| /* This routine releases all resources associated with a specifc NPort's ndlp |
| * and mempool_free's the nodelist. |
| */ |
| static void |
| lpfc_nlp_release(struct kref *kref) |
| { |
| struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist, |
| kref); |
| struct lpfc_vport *vport = ndlp->vport; |
| |
| lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, |
| "node release: did:x%x flg:x%x type:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, |
| "0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n", |
| __func__, ndlp, ndlp->nlp_DID, |
| kref_read(&ndlp->kref), ndlp->nlp_rpi); |
| |
| /* remove ndlp from action. */ |
| lpfc_cancel_retry_delay_tmo(vport, ndlp); |
| lpfc_cleanup_node(vport, ndlp); |
| |
| /* Not all ELS transactions have registered the RPI with the port. |
| * In these cases the rpi usage is temporary and the node is |
| * released when the WQE is completed. Catch this case to free the |
| * RPI to the pool. Because this node is in the release path, a lock |
| * is unnecessary. All references are gone and the node has been |
| * dequeued. |
| */ |
| if (ndlp->nlp_flag & NLP_RELEASE_RPI) { |
| if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR && |
| !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) { |
| lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi); |
| ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; |
| } |
| } |
| |
| /* The node is not freed back to memory, it is released to a pool so |
| * the node fields need to be cleaned up. |
| */ |
| ndlp->vport = NULL; |
| ndlp->nlp_state = NLP_STE_FREED_NODE; |
| ndlp->nlp_flag = 0; |
| ndlp->fc4_xpt_flags = 0; |
| |
| /* free ndlp memory for final ndlp release */ |
| kfree(ndlp->lat_data); |
| if (ndlp->phba->sli_rev == LPFC_SLI_REV4) |
| mempool_free(ndlp->active_rrqs_xri_bitmap, |
| ndlp->phba->active_rrq_pool); |
| mempool_free(ndlp, ndlp->phba->nlp_mem_pool); |
| } |
| |
| /* This routine bumps the reference count for a ndlp structure to ensure |
| * that one discovery thread won't free a ndlp while another discovery thread |
| * is using it. |
| */ |
| struct lpfc_nodelist * |
| lpfc_nlp_get(struct lpfc_nodelist *ndlp) |
| { |
| unsigned long flags; |
| |
| if (ndlp) { |
| lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, |
| "node get: did:x%x flg:x%x refcnt:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| kref_read(&ndlp->kref)); |
| |
| /* The check of ndlp usage to prevent incrementing the |
| * ndlp reference count that is in the process of being |
| * released. |
| */ |
| spin_lock_irqsave(&ndlp->lock, flags); |
| if (!kref_get_unless_zero(&ndlp->kref)) { |
| spin_unlock_irqrestore(&ndlp->lock, flags); |
| lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE, |
| "0276 %s: ndlp:x%px refcnt:%d\n", |
| __func__, (void *)ndlp, kref_read(&ndlp->kref)); |
| return NULL; |
| } |
| spin_unlock_irqrestore(&ndlp->lock, flags); |
| } else { |
| WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__); |
| } |
| |
| return ndlp; |
| } |
| |
| /* This routine decrements the reference count for a ndlp structure. If the |
| * count goes to 0, this indicates the associated nodelist should be freed. |
| */ |
| int |
| lpfc_nlp_put(struct lpfc_nodelist *ndlp) |
| { |
| if (ndlp) { |
| lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, |
| "node put: did:x%x flg:x%x refcnt:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| kref_read(&ndlp->kref)); |
| } else { |
| WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__); |
| } |
| |
| return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0; |
| } |
| |
| /* This routine free's the specified nodelist if it is not in use |
| * by any other discovery thread. This routine returns 1 if the |
| * ndlp has been freed. A return value of 0 indicates the ndlp is |
| * not yet been released. |
| */ |
| int |
| lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) |
| { |
| lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE, |
| "node not used: did:x%x flg:x%x refcnt:x%x", |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| kref_read(&ndlp->kref)); |
| |
| if (kref_read(&ndlp->kref) == 1) |
| if (lpfc_nlp_put(ndlp)) |
| return 1; |
| return 0; |
| } |
| |
| /** |
| * lpfc_fcf_inuse - Check if FCF can be unregistered. |
| * @phba: Pointer to hba context object. |
| * |
| * This function iterate through all FC nodes associated |
| * will all vports to check if there is any node with |
| * fc_rports associated with it. If there is an fc_rport |
| * associated with the node, then the node is either in |
| * discovered state or its devloss_timer is pending. |
| */ |
| static int |
| lpfc_fcf_inuse(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| int i, ret = 0; |
| struct lpfc_nodelist *ndlp; |
| struct Scsi_Host *shost; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| |
| /* If driver cannot allocate memory, indicate fcf is in use */ |
| if (!vports) |
| return 1; |
| |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| shost = lpfc_shost_from_vport(vports[i]); |
| spin_lock_irq(shost->host_lock); |
| /* |
| * IF the CVL_RCVD bit is not set then we have sent the |
| * flogi. |
| * If dev_loss fires while we are waiting we do not want to |
| * unreg the fcf. |
| */ |
| if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { |
| spin_unlock_irq(shost->host_lock); |
| ret = 1; |
| goto out; |
| } |
| list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { |
| if (ndlp->rport && |
| (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { |
| ret = 1; |
| spin_unlock_irq(shost->host_lock); |
| goto out; |
| } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { |
| ret = 1; |
| lpfc_printf_log(phba, KERN_INFO, |
| LOG_NODE | LOG_DISCOVERY, |
| "2624 RPI %x DID %x flag %x " |
| "still logged in\n", |
| ndlp->nlp_rpi, ndlp->nlp_DID, |
| ndlp->nlp_flag); |
| } |
| } |
| spin_unlock_irq(shost->host_lock); |
| } |
| out: |
| lpfc_destroy_vport_work_array(phba, vports); |
| return ret; |
| } |
| |
| /** |
| * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. |
| * @phba: Pointer to hba context object. |
| * @mboxq: Pointer to mailbox object. |
| * |
| * This function frees memory associated with the mailbox command. |
| */ |
| void |
| lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_vport *vport = mboxq->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| if (mboxq->u.mb.mbxStatus) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2555 UNREG_VFI mbxStatus error x%x " |
| "HBA state x%x\n", |
| mboxq->u.mb.mbxStatus, vport->port_state); |
| } |
| spin_lock_irq(shost->host_lock); |
| phba->pport->fc_flag &= ~FC_VFI_REGISTERED; |
| spin_unlock_irq(shost->host_lock); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. |
| * @phba: Pointer to hba context object. |
| * @mboxq: Pointer to mailbox object. |
| * |
| * This function frees memory associated with the mailbox command. |
| */ |
| static void |
| lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_vport *vport = mboxq->vport; |
| |
| if (mboxq->u.mb.mbxStatus) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2550 UNREG_FCFI mbxStatus error x%x " |
| "HBA state x%x\n", |
| mboxq->u.mb.mbxStatus, vport->port_state); |
| } |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_unregister_fcf_prep - Unregister fcf record preparation |
| * @phba: Pointer to hba context object. |
| * |
| * This function prepare the HBA for unregistering the currently registered |
| * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and |
| * VFIs. |
| */ |
| int |
| lpfc_unregister_fcf_prep(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| struct lpfc_nodelist *ndlp; |
| struct Scsi_Host *shost; |
| int i = 0, rc; |
| |
| /* Unregister RPIs */ |
| if (lpfc_fcf_inuse(phba)) |
| lpfc_unreg_hba_rpis(phba); |
| |
| /* At this point, all discovery is aborted */ |
| phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
| |
| /* Unregister VPIs */ |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| /* Stop FLOGI/FDISC retries */ |
| ndlp = lpfc_findnode_did(vports[i], Fabric_DID); |
| if (ndlp) |
| lpfc_cancel_retry_delay_tmo(vports[i], ndlp); |
| lpfc_cleanup_pending_mbox(vports[i]); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_unreg_all_rpis(vports[i]); |
| lpfc_mbx_unreg_vpi(vports[i]); |
| shost = lpfc_shost_from_vport(vports[i]); |
| spin_lock_irq(shost->host_lock); |
| vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; |
| vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; |
| spin_unlock_irq(shost->host_lock); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { |
| ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
| if (ndlp) |
| lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); |
| lpfc_cleanup_pending_mbox(phba->pport); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_unreg_all_rpis(phba->pport); |
| lpfc_mbx_unreg_vpi(phba->pport); |
| shost = lpfc_shost_from_vport(phba->pport); |
| spin_lock_irq(shost->host_lock); |
| phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; |
| phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; |
| spin_unlock_irq(shost->host_lock); |
| } |
| |
| /* Cleanup any outstanding ELS commands */ |
| lpfc_els_flush_all_cmd(phba); |
| |
| /* Unregister the physical port VFI */ |
| rc = lpfc_issue_unreg_vfi(phba->pport); |
| return rc; |
| } |
| |
| /** |
| * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record |
| * @phba: Pointer to hba context object. |
| * |
| * This function issues synchronous unregister FCF mailbox command to HBA to |
| * unregister the currently registered FCF record. The driver does not reset |
| * the driver FCF usage state flags. |
| * |
| * Return 0 if successfully issued, none-zero otherwise. |
| */ |
| int |
| lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *mbox; |
| int rc; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2551 UNREG_FCFI mbox allocation failed" |
| "HBA state x%x\n", phba->pport->port_state); |
| return -ENOMEM; |
| } |
| lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); |
| mbox->vport = phba->pport; |
| mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
| |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2552 Unregister FCFI command failed rc x%x " |
| "HBA state x%x\n", |
| rc, phba->pport->port_state); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan |
| * @phba: Pointer to hba context object. |
| * |
| * This function unregisters the currently reigstered FCF. This function |
| * also tries to find another FCF for discovery by rescan the HBA FCF table. |
| */ |
| void |
| lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) |
| { |
| int rc; |
| |
| /* Preparation for unregistering fcf */ |
| rc = lpfc_unregister_fcf_prep(phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2748 Failed to prepare for unregistering " |
| "HBA's FCF record: rc=%d\n", rc); |
| return; |
| } |
| |
| /* Now, unregister FCF record and reset HBA FCF state */ |
| rc = lpfc_sli4_unregister_fcf(phba); |
| if (rc) |
| return; |
| /* Reset HBA FCF states after successful unregister FCF */ |
| phba->fcf.fcf_flag = 0; |
| phba->fcf.current_rec.flag = 0; |
| |
| /* |
| * If driver is not unloading, check if there is any other |
| * FCF record that can be used for discovery. |
| */ |
| if ((phba->pport->load_flag & FC_UNLOADING) || |
| (phba->link_state < LPFC_LINK_UP)) |
| return; |
| |
| /* This is considered as the initial FCF discovery scan */ |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= FCF_INIT_DISC; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Reset FCF roundrobin bmask for new discovery */ |
| lpfc_sli4_clear_fcf_rr_bmask(phba); |
| |
| rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); |
| |
| if (rc) { |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_INIT_DISC; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2553 lpfc_unregister_unused_fcf failed " |
| "to read FCF record HBA state x%x\n", |
| phba->pport->port_state); |
| } |
| } |
| |
| /** |
| * lpfc_unregister_fcf - Unregister the currently registered fcf record |
| * @phba: Pointer to hba context object. |
| * |
| * This function just unregisters the currently reigstered FCF. It does not |
| * try to find another FCF for discovery. |
| */ |
| void |
| lpfc_unregister_fcf(struct lpfc_hba *phba) |
| { |
| int rc; |
| |
| /* Preparation for unregistering fcf */ |
| rc = lpfc_unregister_fcf_prep(phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2749 Failed to prepare for unregistering " |
| "HBA's FCF record: rc=%d\n", rc); |
| return; |
| } |
| |
| /* Now, unregister FCF record and reset HBA FCF state */ |
| rc = lpfc_sli4_unregister_fcf(phba); |
| if (rc) |
| return; |
| /* Set proper HBA FCF states after successful unregister FCF */ |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_REGISTERED; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /** |
| * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. |
| * @phba: Pointer to hba context object. |
| * |
| * This function check if there are any connected remote port for the FCF and |
| * if all the devices are disconnected, this function unregister FCFI. |
| * This function also tries to use another FCF for discovery. |
| */ |
| void |
| lpfc_unregister_unused_fcf(struct lpfc_hba *phba) |
| { |
| /* |
| * If HBA is not running in FIP mode, if HBA does not support |
| * FCoE, if FCF discovery is ongoing, or if FCF has not been |
| * registered, do nothing. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| if (!(phba->hba_flag & HBA_FCOE_MODE) || |
| !(phba->fcf.fcf_flag & FCF_REGISTERED) || |
| !(phba->hba_flag & HBA_FIP_SUPPORT) || |
| (phba->fcf.fcf_flag & FCF_DISCOVERY) || |
| (phba->pport->port_state == LPFC_FLOGI)) { |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| if (lpfc_fcf_inuse(phba)) |
| return; |
| |
| lpfc_unregister_fcf_rescan(phba); |
| } |
| |
| /** |
| * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. |
| * @phba: Pointer to hba context object. |
| * @buff: Buffer containing the FCF connection table as in the config |
| * region. |
| * This function create driver data structure for the FCF connection |
| * record table read from config region 23. |
| */ |
| static void |
| lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, |
| uint8_t *buff) |
| { |
| struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; |
| struct lpfc_fcf_conn_hdr *conn_hdr; |
| struct lpfc_fcf_conn_rec *conn_rec; |
| uint32_t record_count; |
| int i; |
| |
| /* Free the current connect table */ |
| list_for_each_entry_safe(conn_entry, next_conn_entry, |
| &phba->fcf_conn_rec_list, list) { |
| list_del_init(&conn_entry->list); |
| kfree(conn_entry); |
| } |
| |
| conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; |
| record_count = conn_hdr->length * sizeof(uint32_t)/ |
| sizeof(struct lpfc_fcf_conn_rec); |
| |
| conn_rec = (struct lpfc_fcf_conn_rec *) |
| (buff + sizeof(struct lpfc_fcf_conn_hdr)); |
| |
| for (i = 0; i < record_count; i++) { |
| if (!(conn_rec[i].flags & FCFCNCT_VALID)) |
| continue; |
| conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), |
| GFP_KERNEL); |
| if (!conn_entry) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2566 Failed to allocate connection" |
| " table entry\n"); |
| return; |
| } |
| |
| memcpy(&conn_entry->conn_rec, &conn_rec[i], |
| sizeof(struct lpfc_fcf_conn_rec)); |
| list_add_tail(&conn_entry->list, |
| &phba->fcf_conn_rec_list); |
| } |
| |
| if (!list_empty(&phba->fcf_conn_rec_list)) { |
| i = 0; |
| list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, |
| list) { |
| conn_rec = &conn_entry->conn_rec; |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "3345 FCF connection list rec[%02d]: " |
| "flags:x%04x, vtag:x%04x, " |
| "fabric_name:x%02x:%02x:%02x:%02x:" |
| "%02x:%02x:%02x:%02x, " |
| "switch_name:x%02x:%02x:%02x:%02x:" |
| "%02x:%02x:%02x:%02x\n", i++, |
| conn_rec->flags, conn_rec->vlan_tag, |
| conn_rec->fabric_name[0], |
| conn_rec->fabric_name[1], |
| conn_rec->fabric_name[2], |
| conn_rec->fabric_name[3], |
| conn_rec->fabric_name[4], |
| conn_rec->fabric_name[5], |
| conn_rec->fabric_name[6], |
| conn_rec->fabric_name[7], |
| conn_rec->switch_name[0], |
| conn_rec->switch_name[1], |
| conn_rec->switch_name[2], |
| conn_rec->switch_name[3], |
| conn_rec->switch_name[4], |
| conn_rec->switch_name[5], |
| conn_rec->switch_name[6], |
| conn_rec->switch_name[7]); |
| } |
| } |
| } |
| |
| /** |
| * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. |
| * @phba: Pointer to hba context object. |
| * @buff: Buffer containing the FCoE parameter data structure. |
| * |
| * This function update driver data structure with config |
| * parameters read from config region 23. |
| */ |
| static void |
| lpfc_read_fcoe_param(struct lpfc_hba *phba, |
| uint8_t *buff) |
| { |
| struct lpfc_fip_param_hdr *fcoe_param_hdr; |
| struct lpfc_fcoe_params *fcoe_param; |
| |
| fcoe_param_hdr = (struct lpfc_fip_param_hdr *) |
| buff; |
| fcoe_param = (struct lpfc_fcoe_params *) |
| (buff + sizeof(struct lpfc_fip_param_hdr)); |
| |
| if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || |
| (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) |
| return; |
| |
| if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { |
| phba->valid_vlan = 1; |
| phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & |
| 0xFFF; |
| } |
| |
| phba->fc_map[0] = fcoe_param->fc_map[0]; |
| phba->fc_map[1] = fcoe_param->fc_map[1]; |
| phba->fc_map[2] = fcoe_param->fc_map[2]; |
| return; |
| } |
| |
| /** |
| * lpfc_get_rec_conf23 - Get a record type in config region data. |
| * @buff: Buffer containing config region 23 data. |
| * @size: Size of the data buffer. |
| * @rec_type: Record type to be searched. |
| * |
| * This function searches config region data to find the beginning |
| * of the record specified by record_type. If record found, this |
| * function return pointer to the record else return NULL. |
| */ |
| static uint8_t * |
| lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) |
| { |
| uint32_t offset = 0, rec_length; |
| |
| if ((buff[0] == LPFC_REGION23_LAST_REC) || |
| (size < sizeof(uint32_t))) |
| return NULL; |
| |
| rec_length = buff[offset + 1]; |
| |
| /* |
| * One TLV record has one word header and number of data words |
| * specified in the rec_length field of the record header. |
| */ |
| while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) |
| <= size) { |
| if (buff[offset] == rec_type) |
| return &buff[offset]; |
| |
| if (buff[offset] == LPFC_REGION23_LAST_REC) |
| return NULL; |
| |
| offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); |
| rec_length = buff[offset + 1]; |
| } |
| return NULL; |
| } |
| |
| /** |
| * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. |
| * @phba: Pointer to lpfc_hba data structure. |
| * @buff: Buffer containing config region 23 data. |
| * @size: Size of the data buffer. |
| * |
| * This function parses the FCoE config parameters in config region 23 and |
| * populate driver data structure with the parameters. |
| */ |
| void |
| lpfc_parse_fcoe_conf(struct lpfc_hba *phba, |
| uint8_t *buff, |
| uint32_t size) |
| { |
| uint32_t offset = 0; |
| uint8_t *rec_ptr; |
| |
| /* |
| * If data size is less than 2 words signature and version cannot be |
| * verified. |
| */ |
| if (size < 2*sizeof(uint32_t)) |
| return; |
| |
| /* Check the region signature first */ |
| if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2567 Config region 23 has bad signature\n"); |
| return; |
| } |
| |
| offset += 4; |
| |
| /* Check the data structure version */ |
| if (buff[offset] != LPFC_REGION23_VERSION) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2568 Config region 23 has bad version\n"); |
| return; |
| } |
| offset += 4; |
| |
| /* Read FCoE param record */ |
| rec_ptr = lpfc_get_rec_conf23(&buff[offset], |
| size - offset, FCOE_PARAM_TYPE); |
| if (rec_ptr) |
| lpfc_read_fcoe_param(phba, rec_ptr); |
| |
| /* Read FCF connection table */ |
| rec_ptr = lpfc_get_rec_conf23(&buff[offset], |
| size - offset, FCOE_CONN_TBL_TYPE); |
| if (rec_ptr) |
| lpfc_read_fcf_conn_tbl(phba, rec_ptr); |
| |
| } |
