| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2017-2021 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/dma-mapping.h> |
| #include <linux/idr.h> |
| #include <linux/interrupt.h> |
| #include <linux/module.h> |
| #include <linux/kthread.h> |
| #include <linux/pci.h> |
| #include <linux/spinlock.h> |
| #include <linux/ctype.h> |
| #include <linux/aer.h> |
| #include <linux/slab.h> |
| #include <linux/firmware.h> |
| #include <linux/miscdevice.h> |
| #include <linux/percpu.h> |
| #include <linux/msi.h> |
| #include <linux/irq.h> |
| #include <linux/bitops.h> |
| #include <linux/crash_dump.h> |
| #include <linux/cpu.h> |
| #include <linux/cpuhotplug.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_transport_fc.h> |
| #include <scsi/scsi_tcq.h> |
| #include <scsi/fc/fc_fs.h> |
| |
| #include "lpfc_hw4.h" |
| #include "lpfc_hw.h" |
| #include "lpfc_sli.h" |
| #include "lpfc_sli4.h" |
| #include "lpfc_nl.h" |
| #include "lpfc_disc.h" |
| #include "lpfc.h" |
| #include "lpfc_scsi.h" |
| #include "lpfc_nvme.h" |
| #include "lpfc_logmsg.h" |
| #include "lpfc_crtn.h" |
| #include "lpfc_vport.h" |
| #include "lpfc_version.h" |
| #include "lpfc_ids.h" |
| |
| static enum cpuhp_state lpfc_cpuhp_state; |
| /* Used when mapping IRQ vectors in a driver centric manner */ |
| static uint32_t lpfc_present_cpu; |
| static bool lpfc_pldv_detect; |
| |
| static void __lpfc_cpuhp_remove(struct lpfc_hba *phba); |
| static void lpfc_cpuhp_remove(struct lpfc_hba *phba); |
| static void lpfc_cpuhp_add(struct lpfc_hba *phba); |
| static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); |
| static int lpfc_post_rcv_buf(struct lpfc_hba *); |
| static int lpfc_sli4_queue_verify(struct lpfc_hba *); |
| static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); |
| static int lpfc_setup_endian_order(struct lpfc_hba *); |
| static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); |
| static void lpfc_free_els_sgl_list(struct lpfc_hba *); |
| static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *); |
| static void lpfc_init_sgl_list(struct lpfc_hba *); |
| static int lpfc_init_active_sgl_array(struct lpfc_hba *); |
| static void lpfc_free_active_sgl(struct lpfc_hba *); |
| static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); |
| static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); |
| static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); |
| static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); |
| static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); |
| static void lpfc_sli4_disable_intr(struct lpfc_hba *); |
| static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); |
| static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); |
| static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int); |
| static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *); |
| static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *); |
| |
| static struct scsi_transport_template *lpfc_transport_template = NULL; |
| static struct scsi_transport_template *lpfc_vport_transport_template = NULL; |
| static DEFINE_IDR(lpfc_hba_index); |
| #define LPFC_NVMET_BUF_POST 254 |
| static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport); |
| |
| /** |
| * lpfc_config_port_prep - Perform lpfc initialization prior to config port |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine will do LPFC initialization prior to issuing the CONFIG_PORT |
| * mailbox command. It retrieves the revision information from the HBA and |
| * collects the Vital Product Data (VPD) about the HBA for preparing the |
| * configuration of the HBA. |
| * |
| * Return codes: |
| * 0 - success. |
| * -ERESTART - requests the SLI layer to reset the HBA and try again. |
| * Any other value - indicates an error. |
| **/ |
| int |
| lpfc_config_port_prep(struct lpfc_hba *phba) |
| { |
| lpfc_vpd_t *vp = &phba->vpd; |
| int i = 0, rc; |
| LPFC_MBOXQ_t *pmb; |
| MAILBOX_t *mb; |
| char *lpfc_vpd_data = NULL; |
| uint16_t offset = 0; |
| static char licensed[56] = |
| "key unlock for use with gnu public licensed code only\0"; |
| static int init_key = 1; |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| |
| mb = &pmb->u.mb; |
| phba->link_state = LPFC_INIT_MBX_CMDS; |
| |
| if (lpfc_is_LC_HBA(phba->pcidev->device)) { |
| if (init_key) { |
| uint32_t *ptext = (uint32_t *) licensed; |
| |
| for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) |
| *ptext = cpu_to_be32(*ptext); |
| init_key = 0; |
| } |
| |
| lpfc_read_nv(phba, pmb); |
| memset((char*)mb->un.varRDnvp.rsvd3, 0, |
| sizeof (mb->un.varRDnvp.rsvd3)); |
| memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, |
| sizeof (licensed)); |
| |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0324 Config Port initialization " |
| "error, mbxCmd x%x READ_NVPARM, " |
| "mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -ERESTART; |
| } |
| memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, |
| sizeof(phba->wwnn)); |
| memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, |
| sizeof(phba->wwpn)); |
| } |
| |
| /* |
| * Clear all option bits except LPFC_SLI3_BG_ENABLED, |
| * which was already set in lpfc_get_cfgparam() |
| */ |
| phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED; |
| |
| /* Setup and issue mailbox READ REV command */ |
| lpfc_read_rev(phba, pmb); |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0439 Adapter failed to init, mbxCmd x%x " |
| "READ_REV, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| mempool_free( pmb, phba->mbox_mem_pool); |
| return -ERESTART; |
| } |
| |
| |
| /* |
| * The value of rr must be 1 since the driver set the cv field to 1. |
| * This setting requires the FW to set all revision fields. |
| */ |
| if (mb->un.varRdRev.rr == 0) { |
| vp->rev.rBit = 0; |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0440 Adapter failed to init, READ_REV has " |
| "missing revision information.\n"); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -ERESTART; |
| } |
| |
| if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EINVAL; |
| } |
| |
| /* Save information as VPD data */ |
| vp->rev.rBit = 1; |
| memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); |
| vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; |
| memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); |
| vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; |
| memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); |
| vp->rev.biuRev = mb->un.varRdRev.biuRev; |
| vp->rev.smRev = mb->un.varRdRev.smRev; |
| vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; |
| vp->rev.endecRev = mb->un.varRdRev.endecRev; |
| vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; |
| vp->rev.fcphLow = mb->un.varRdRev.fcphLow; |
| vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; |
| vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; |
| vp->rev.postKernRev = mb->un.varRdRev.postKernRev; |
| vp->rev.opFwRev = mb->un.varRdRev.opFwRev; |
| |
| /* If the sli feature level is less then 9, we must |
| * tear down all RPIs and VPIs on link down if NPIV |
| * is enabled. |
| */ |
| if (vp->rev.feaLevelHigh < 9) |
| phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; |
| |
| if (lpfc_is_LC_HBA(phba->pcidev->device)) |
| memcpy(phba->RandomData, (char *)&mb->un.varWords[24], |
| sizeof (phba->RandomData)); |
| |
| /* Get adapter VPD information */ |
| lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); |
| if (!lpfc_vpd_data) |
| goto out_free_mbox; |
| do { |
| lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0441 VPD not present on adapter, " |
| "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| mb->un.varDmp.word_cnt = 0; |
| } |
| /* dump mem may return a zero when finished or we got a |
| * mailbox error, either way we are done. |
| */ |
| if (mb->un.varDmp.word_cnt == 0) |
| break; |
| |
| if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) |
| mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; |
| lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, |
| lpfc_vpd_data + offset, |
| mb->un.varDmp.word_cnt); |
| offset += mb->un.varDmp.word_cnt; |
| } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); |
| |
| lpfc_parse_vpd(phba, lpfc_vpd_data, offset); |
| |
| kfree(lpfc_vpd_data); |
| out_free_mbox: |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return 0; |
| } |
| |
| /** |
| * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd |
| * @phba: pointer to lpfc hba data structure. |
| * @pmboxq: pointer to the driver internal queue element for mailbox command. |
| * |
| * This is the completion handler for driver's configuring asynchronous event |
| * mailbox command to the device. If the mailbox command returns successfully, |
| * it will set internal async event support flag to 1; otherwise, it will |
| * set internal async event support flag to 0. |
| **/ |
| static void |
| lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) |
| { |
| if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) |
| phba->temp_sensor_support = 1; |
| else |
| phba->temp_sensor_support = 0; |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler |
| * @phba: pointer to lpfc hba data structure. |
| * @pmboxq: pointer to the driver internal queue element for mailbox command. |
| * |
| * This is the completion handler for dump mailbox command for getting |
| * wake up parameters. When this command complete, the response contain |
| * Option rom version of the HBA. This function translate the version number |
| * into a human readable string and store it in OptionROMVersion. |
| **/ |
| static void |
| lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| { |
| struct prog_id *prg; |
| uint32_t prog_id_word; |
| char dist = ' '; |
| /* character array used for decoding dist type. */ |
| char dist_char[] = "nabx"; |
| |
| if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| prg = (struct prog_id *) &prog_id_word; |
| |
| /* word 7 contain option rom version */ |
| prog_id_word = pmboxq->u.mb.un.varWords[7]; |
| |
| /* Decode the Option rom version word to a readable string */ |
| if (prg->dist < 4) |
| dist = dist_char[prg->dist]; |
| |
| if ((prg->dist == 3) && (prg->num == 0)) |
| snprintf(phba->OptionROMVersion, 32, "%d.%d%d", |
| prg->ver, prg->rev, prg->lev); |
| else |
| snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", |
| prg->ver, prg->rev, prg->lev, |
| dist, prg->num); |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, |
| * cfg_soft_wwnn, cfg_soft_wwpn |
| * @vport: pointer to lpfc vport data structure. |
| * |
| * |
| * Return codes |
| * None. |
| **/ |
| void |
| lpfc_update_vport_wwn(struct lpfc_vport *vport) |
| { |
| uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; |
| u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0]; |
| |
| /* If the soft name exists then update it using the service params */ |
| if (vport->phba->cfg_soft_wwnn) |
| u64_to_wwn(vport->phba->cfg_soft_wwnn, |
| vport->fc_sparam.nodeName.u.wwn); |
| if (vport->phba->cfg_soft_wwpn) |
| u64_to_wwn(vport->phba->cfg_soft_wwpn, |
| vport->fc_sparam.portName.u.wwn); |
| |
| /* |
| * If the name is empty or there exists a soft name |
| * then copy the service params name, otherwise use the fc name |
| */ |
| if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) |
| memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, |
| sizeof(struct lpfc_name)); |
| else |
| memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, |
| sizeof(struct lpfc_name)); |
| |
| /* |
| * If the port name has changed, then set the Param changes flag |
| * to unreg the login |
| */ |
| if (vport->fc_portname.u.wwn[0] != 0 && |
| memcmp(&vport->fc_portname, &vport->fc_sparam.portName, |
| sizeof(struct lpfc_name))) |
| vport->vport_flag |= FAWWPN_PARAM_CHG; |
| |
| if (vport->fc_portname.u.wwn[0] == 0 || |
| vport->phba->cfg_soft_wwpn || |
| (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) || |
| vport->vport_flag & FAWWPN_SET) { |
| memcpy(&vport->fc_portname, &vport->fc_sparam.portName, |
| sizeof(struct lpfc_name)); |
| vport->vport_flag &= ~FAWWPN_SET; |
| if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) |
| vport->vport_flag |= FAWWPN_SET; |
| } |
| else |
| memcpy(&vport->fc_sparam.portName, &vport->fc_portname, |
| sizeof(struct lpfc_name)); |
| } |
| |
| /** |
| * lpfc_config_port_post - Perform lpfc initialization after config port |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine will do LPFC initialization after the CONFIG_PORT mailbox |
| * command call. It performs all internal resource and state setups on the |
| * port: post IOCB buffers, enable appropriate host interrupt attentions, |
| * ELS ring timers, etc. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| int |
| lpfc_config_port_post(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| LPFC_MBOXQ_t *pmb; |
| MAILBOX_t *mb; |
| struct lpfc_dmabuf *mp; |
| struct lpfc_sli *psli = &phba->sli; |
| uint32_t status, timeout; |
| int i, j; |
| int rc; |
| |
| spin_lock_irq(&phba->hbalock); |
| /* |
| * If the Config port completed correctly the HBA is not |
| * over heated any more. |
| */ |
| if (phba->over_temp_state == HBA_OVER_TEMP) |
| phba->over_temp_state = HBA_NORMAL_TEMP; |
| spin_unlock_irq(&phba->hbalock); |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| mb = &pmb->u.mb; |
| |
| /* Get login parameters for NID. */ |
| rc = lpfc_read_sparam(phba, pmb, 0); |
| if (rc) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -ENOMEM; |
| } |
| |
| pmb->vport = vport; |
| if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0448 Adapter failed init, mbxCmd x%x " |
| "READ_SPARM mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| phba->link_state = LPFC_HBA_ERROR; |
| mp = (struct lpfc_dmabuf *)pmb->ctx_buf; |
| mempool_free(pmb, phba->mbox_mem_pool); |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| return -EIO; |
| } |
| |
| mp = (struct lpfc_dmabuf *)pmb->ctx_buf; |
| |
| memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| pmb->ctx_buf = NULL; |
| lpfc_update_vport_wwn(vport); |
| |
| /* Update the fc_host data structures with new wwn. */ |
| fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); |
| fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); |
| fc_host_max_npiv_vports(shost) = phba->max_vpi; |
| |
| /* If no serial number in VPD data, use low 6 bytes of WWNN */ |
| /* This should be consolidated into parse_vpd ? - mr */ |
| if (phba->SerialNumber[0] == 0) { |
| uint8_t *outptr; |
| |
| outptr = &vport->fc_nodename.u.s.IEEE[0]; |
| for (i = 0; i < 12; i++) { |
| status = *outptr++; |
| j = ((status & 0xf0) >> 4); |
| if (j <= 9) |
| phba->SerialNumber[i] = |
| (char)((uint8_t) 0x30 + (uint8_t) j); |
| else |
| phba->SerialNumber[i] = |
| (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); |
| i++; |
| j = (status & 0xf); |
| if (j <= 9) |
| phba->SerialNumber[i] = |
| (char)((uint8_t) 0x30 + (uint8_t) j); |
| else |
| phba->SerialNumber[i] = |
| (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); |
| } |
| } |
| |
| lpfc_read_config(phba, pmb); |
| pmb->vport = vport; |
| if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0453 Adapter failed to init, mbxCmd x%x " |
| "READ_CONFIG, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| phba->link_state = LPFC_HBA_ERROR; |
| mempool_free( pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| |
| /* Check if the port is disabled */ |
| lpfc_sli_read_link_ste(phba); |
| |
| /* Reset the DFT_HBA_Q_DEPTH to the max xri */ |
| if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "3359 HBA queue depth changed from %d to %d\n", |
| phba->cfg_hba_queue_depth, |
| mb->un.varRdConfig.max_xri); |
| phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri; |
| } |
| |
| phba->lmt = mb->un.varRdConfig.lmt; |
| |
| /* Get the default values for Model Name and Description */ |
| lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); |
| |
| phba->link_state = LPFC_LINK_DOWN; |
| |
| /* Only process IOCBs on ELS ring till hba_state is READY */ |
| if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr) |
| psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT; |
| if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr) |
| psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT; |
| |
| /* Post receive buffers for desired rings */ |
| if (phba->sli_rev != 3) |
| lpfc_post_rcv_buf(phba); |
| |
| /* |
| * Configure HBA MSI-X attention conditions to messages if MSI-X mode |
| */ |
| if (phba->intr_type == MSIX) { |
| rc = lpfc_config_msi(phba, pmb); |
| if (rc) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| if (rc != MBX_SUCCESS) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0352 Config MSI mailbox command " |
| "failed, mbxCmd x%x, mbxStatus x%x\n", |
| pmb->u.mb.mbxCommand, |
| pmb->u.mb.mbxStatus); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| } |
| |
| spin_lock_irq(&phba->hbalock); |
| /* Initialize ERATT handling flag */ |
| phba->hba_flag &= ~HBA_ERATT_HANDLED; |
| |
| /* Enable appropriate host interrupts */ |
| if (lpfc_readl(phba->HCregaddr, &status)) { |
| spin_unlock_irq(&phba->hbalock); |
| return -EIO; |
| } |
| status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; |
| if (psli->num_rings > 0) |
| status |= HC_R0INT_ENA; |
| if (psli->num_rings > 1) |
| status |= HC_R1INT_ENA; |
| if (psli->num_rings > 2) |
| status |= HC_R2INT_ENA; |
| if (psli->num_rings > 3) |
| status |= HC_R3INT_ENA; |
| |
| if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && |
| (phba->cfg_poll & DISABLE_FCP_RING_INT)) |
| status &= ~(HC_R0INT_ENA); |
| |
| writel(status, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* Set up ring-0 (ELS) timer */ |
| timeout = phba->fc_ratov * 2; |
| mod_timer(&vport->els_tmofunc, |
| jiffies + msecs_to_jiffies(1000 * timeout)); |
| /* Set up heart beat (HB) timer */ |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); |
| phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO); |
| phba->last_completion_time = jiffies; |
| /* Set up error attention (ERATT) polling timer */ |
| mod_timer(&phba->eratt_poll, |
| jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); |
| |
| if (phba->hba_flag & LINK_DISABLED) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2598 Adapter Link is disabled.\n"); |
| lpfc_down_link(phba, pmb); |
| pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2599 Adapter failed to issue DOWN_LINK" |
| " mbox command rc 0x%x\n", rc); |
| |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { |
| mempool_free(pmb, phba->mbox_mem_pool); |
| rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); |
| if (rc) |
| return rc; |
| } |
| /* MBOX buffer will be freed in mbox compl */ |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| |
| lpfc_config_async(phba, pmb, LPFC_ELS_RING); |
| pmb->mbox_cmpl = lpfc_config_async_cmpl; |
| pmb->vport = phba->pport; |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| |
| if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0456 Adapter failed to issue " |
| "ASYNCEVT_ENABLE mbox status x%x\n", |
| rc); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| } |
| |
| /* Get Option rom version */ |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| |
| lpfc_dump_wakeup_param(phba, pmb); |
| pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; |
| pmb->vport = phba->pport; |
| rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| |
| if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0435 Adapter failed " |
| "to get Option ROM version status x%x\n", rc); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_sli4_refresh_params - update driver copy of params. |
| * @phba: Pointer to HBA context object. |
| * |
| * This is called to refresh driver copy of dynamic fields from the |
| * common_get_sli4_parameters descriptor. |
| **/ |
| int |
| lpfc_sli4_refresh_params(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *mboxq; |
| struct lpfc_mqe *mqe; |
| struct lpfc_sli4_parameters *mbx_sli4_parameters; |
| int length, rc; |
| |
| mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mboxq) |
| return -ENOMEM; |
| |
| mqe = &mboxq->u.mqe; |
| /* Read the port's SLI4 Config Parameters */ |
| length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - |
| sizeof(struct lpfc_sli4_cfg_mhdr)); |
| lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, |
| LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, |
| length, LPFC_SLI4_MBX_EMBED); |
| |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
| if (unlikely(rc)) { |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return rc; |
| } |
| mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; |
| phba->sli4_hba.pc_sli4_params.mi_ver = |
| bf_get(cfg_mi_ver, mbx_sli4_parameters); |
| phba->sli4_hba.pc_sli4_params.cmf = |
| bf_get(cfg_cmf, mbx_sli4_parameters); |
| phba->sli4_hba.pc_sli4_params.pls = |
| bf_get(cfg_pvl, mbx_sli4_parameters); |
| |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return rc; |
| } |
| |
| /** |
| * lpfc_hba_init_link - Initialize the FC link |
| * @phba: pointer to lpfc hba data structure. |
| * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT |
| * |
| * This routine will issue the INIT_LINK mailbox command call. |
| * It is available to other drivers through the lpfc_hba data |
| * structure for use as a delayed link up mechanism with the |
| * module parameter lpfc_suppress_link_up. |
| * |
| * Return code |
| * 0 - success |
| * Any other value - error |
| **/ |
| static int |
| lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) |
| { |
| return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); |
| } |
| |
| /** |
| * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology |
| * @phba: pointer to lpfc hba data structure. |
| * @fc_topology: desired fc topology. |
| * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT |
| * |
| * This routine will issue the INIT_LINK mailbox command call. |
| * It is available to other drivers through the lpfc_hba data |
| * structure for use as a delayed link up mechanism with the |
| * module parameter lpfc_suppress_link_up. |
| * |
| * Return code |
| * 0 - success |
| * Any other value - error |
| **/ |
| int |
| lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, |
| uint32_t flag) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| LPFC_MBOXQ_t *pmb; |
| MAILBOX_t *mb; |
| int rc; |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| mb = &pmb->u.mb; |
| pmb->vport = vport; |
| |
| if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && |
| !(phba->lmt & LMT_1Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && |
| !(phba->lmt & LMT_2Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && |
| !(phba->lmt & LMT_4Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && |
| !(phba->lmt & LMT_8Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && |
| !(phba->lmt & LMT_10Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && |
| !(phba->lmt & LMT_16Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && |
| !(phba->lmt & LMT_32Gb)) || |
| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) && |
| !(phba->lmt & LMT_64Gb))) { |
| /* Reset link speed to auto */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "1302 Invalid speed for this board:%d " |
| "Reset link speed to auto.\n", |
| phba->cfg_link_speed); |
| phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; |
| } |
| lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); |
| pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| if (phba->sli_rev < LPFC_SLI_REV4) |
| lpfc_set_loopback_flag(phba); |
| rc = lpfc_sli_issue_mbox(phba, pmb, flag); |
| if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0498 Adapter failed to init, mbxCmd x%x " |
| "INIT_LINK, mbxStatus x%x\n", |
| mb->mbxCommand, mb->mbxStatus); |
| if (phba->sli_rev <= LPFC_SLI_REV3) { |
| /* Clear all interrupt enable conditions */ |
| writel(0, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| /* Clear all pending interrupts */ |
| writel(0xffffffff, phba->HAregaddr); |
| readl(phba->HAregaddr); /* flush */ |
| } |
| phba->link_state = LPFC_HBA_ERROR; |
| if (rc != MBX_BUSY || flag == MBX_POLL) |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; |
| if (flag == MBX_POLL) |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_down_link - this routine downs the FC link |
| * @phba: pointer to lpfc hba data structure. |
| * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT |
| * |
| * This routine will issue the DOWN_LINK mailbox command call. |
| * It is available to other drivers through the lpfc_hba data |
| * structure for use to stop the link. |
| * |
| * Return code |
| * 0 - success |
| * Any other value - error |
| **/ |
| static int |
| lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) |
| { |
| LPFC_MBOXQ_t *pmb; |
| int rc; |
| |
| pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| phba->link_state = LPFC_HBA_ERROR; |
| return -ENOMEM; |
| } |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0491 Adapter Link is disabled.\n"); |
| lpfc_down_link(phba, pmb); |
| pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, pmb, flag); |
| if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2522 Adapter failed to issue DOWN_LINK" |
| " mbox command rc 0x%x\n", rc); |
| |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return -EIO; |
| } |
| if (flag == MBX_POLL) |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will do LPFC uninitialization before the HBA is reset when |
| * bringing down the SLI Layer. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| int |
| lpfc_hba_down_prep(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| int i; |
| |
| if (phba->sli_rev <= LPFC_SLI_REV3) { |
| /* Disable interrupts */ |
| writel(0, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| } |
| |
| if (phba->pport->load_flag & FC_UNLOADING) |
| lpfc_cleanup_discovery_resources(phba->pport); |
| else { |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports && |
| vports[i] != NULL; i++) |
| lpfc_cleanup_discovery_resources(vports[i]); |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| return 0; |
| } |
| |
| /** |
| * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free |
| * rspiocb which got deferred |
| * |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will cleanup completed slow path events after HBA is reset |
| * when bringing down the SLI Layer. |
| * |
| * |
| * Return codes |
| * void. |
| **/ |
| static void |
| lpfc_sli4_free_sp_events(struct lpfc_hba *phba) |
| { |
| struct lpfc_iocbq *rspiocbq; |
| struct hbq_dmabuf *dmabuf; |
| struct lpfc_cq_event *cq_event; |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~HBA_SP_QUEUE_EVT; |
| spin_unlock_irq(&phba->hbalock); |
| |
| while (!list_empty(&phba->sli4_hba.sp_queue_event)) { |
| /* Get the response iocb from the head of work queue */ |
| spin_lock_irq(&phba->hbalock); |
| list_remove_head(&phba->sli4_hba.sp_queue_event, |
| cq_event, struct lpfc_cq_event, list); |
| spin_unlock_irq(&phba->hbalock); |
| |
| switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { |
| case CQE_CODE_COMPL_WQE: |
| rspiocbq = container_of(cq_event, struct lpfc_iocbq, |
| cq_event); |
| lpfc_sli_release_iocbq(phba, rspiocbq); |
| break; |
| case CQE_CODE_RECEIVE: |
| case CQE_CODE_RECEIVE_V1: |
| dmabuf = container_of(cq_event, struct hbq_dmabuf, |
| cq_event); |
| lpfc_in_buf_free(phba, &dmabuf->dbuf); |
| } |
| } |
| } |
| |
| /** |
| * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will cleanup posted ELS buffers after the HBA is reset |
| * when bringing down the SLI Layer. |
| * |
| * |
| * Return codes |
| * void. |
| **/ |
| static void |
| lpfc_hba_free_post_buf(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring; |
| struct lpfc_dmabuf *mp, *next_mp; |
| LIST_HEAD(buflist); |
| int count; |
| |
| if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
| lpfc_sli_hbqbuf_free_all(phba); |
| else { |
| /* Cleanup preposted buffers on the ELS ring */ |
| pring = &psli->sli3_ring[LPFC_ELS_RING]; |
| spin_lock_irq(&phba->hbalock); |
| list_splice_init(&pring->postbufq, &buflist); |
| spin_unlock_irq(&phba->hbalock); |
| |
| count = 0; |
| list_for_each_entry_safe(mp, next_mp, &buflist, list) { |
| list_del(&mp->list); |
| count++; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| } |
| |
| spin_lock_irq(&phba->hbalock); |
| pring->postbufq_cnt -= count; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| } |
| |
| /** |
| * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will cleanup the txcmplq after the HBA is reset when bringing |
| * down the SLI Layer. |
| * |
| * Return codes |
| * void |
| **/ |
| static void |
| lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_queue *qp = NULL; |
| struct lpfc_sli_ring *pring; |
| LIST_HEAD(completions); |
| int i; |
| struct lpfc_iocbq *piocb, *next_iocb; |
| |
| if (phba->sli_rev != LPFC_SLI_REV4) { |
| for (i = 0; i < psli->num_rings; i++) { |
| pring = &psli->sli3_ring[i]; |
| spin_lock_irq(&phba->hbalock); |
| /* At this point in time the HBA is either reset or DOA |
| * Nothing should be on txcmplq as it will |
| * NEVER complete. |
| */ |
| list_splice_init(&pring->txcmplq, &completions); |
| pring->txcmplq_cnt = 0; |
| spin_unlock_irq(&phba->hbalock); |
| |
| lpfc_sli_abort_iocb_ring(phba, pring); |
| } |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &completions, |
| IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); |
| return; |
| } |
| list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { |
| pring = qp->pring; |
| if (!pring) |
| continue; |
| spin_lock_irq(&pring->ring_lock); |
| list_for_each_entry_safe(piocb, next_iocb, |
| &pring->txcmplq, list) |
| piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ; |
| list_splice_init(&pring->txcmplq, &completions); |
| pring->txcmplq_cnt = 0; |
| spin_unlock_irq(&pring->ring_lock); |
| lpfc_sli_abort_iocb_ring(phba, pring); |
| } |
| /* Cancel all the IOCBs from the completions list */ |
| lpfc_sli_cancel_iocbs(phba, &completions, |
| IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); |
| } |
| |
| /** |
| * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will do uninitialization after the HBA is reset when bring |
| * down the SLI Layer. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| static int |
| lpfc_hba_down_post_s3(struct lpfc_hba *phba) |
| { |
| lpfc_hba_free_post_buf(phba); |
| lpfc_hba_clean_txcmplq(phba); |
| return 0; |
| } |
| |
| /** |
| * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine will do uninitialization after the HBA is reset when bring |
| * down the SLI Layer. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| static int |
| lpfc_hba_down_post_s4(struct lpfc_hba *phba) |
| { |
| struct lpfc_io_buf *psb, *psb_next; |
| struct lpfc_async_xchg_ctx *ctxp, *ctxp_next; |
| struct lpfc_sli4_hdw_queue *qp; |
| LIST_HEAD(aborts); |
| LIST_HEAD(nvme_aborts); |
| LIST_HEAD(nvmet_aborts); |
| struct lpfc_sglq *sglq_entry = NULL; |
| int cnt, idx; |
| |
| |
| lpfc_sli_hbqbuf_free_all(phba); |
| lpfc_hba_clean_txcmplq(phba); |
| |
| /* At this point in time the HBA is either reset or DOA. Either |
| * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be |
| * on the lpfc_els_sgl_list so that it can either be freed if the |
| * driver is unloading or reposted if the driver is restarting |
| * the port. |
| */ |
| |
| /* sgl_list_lock required because worker thread uses this |
| * list. |
| */ |
| spin_lock_irq(&phba->sli4_hba.sgl_list_lock); |
| list_for_each_entry(sglq_entry, |
| &phba->sli4_hba.lpfc_abts_els_sgl_list, list) |
| sglq_entry->state = SGL_FREED; |
| |
| list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, |
| &phba->sli4_hba.lpfc_els_sgl_list); |
| |
| |
| spin_unlock_irq(&phba->sli4_hba.sgl_list_lock); |
| |
| /* abts_xxxx_buf_list_lock required because worker thread uses this |
| * list. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| cnt = 0; |
| for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { |
| qp = &phba->sli4_hba.hdwq[idx]; |
| |
| spin_lock(&qp->abts_io_buf_list_lock); |
| list_splice_init(&qp->lpfc_abts_io_buf_list, |
| &aborts); |
| |
| list_for_each_entry_safe(psb, psb_next, &aborts, list) { |
| psb->pCmd = NULL; |
| psb->status = IOSTAT_SUCCESS; |
| cnt++; |
| } |
| spin_lock(&qp->io_buf_list_put_lock); |
| list_splice_init(&aborts, &qp->lpfc_io_buf_list_put); |
| qp->put_io_bufs += qp->abts_scsi_io_bufs; |
| qp->put_io_bufs += qp->abts_nvme_io_bufs; |
| qp->abts_scsi_io_bufs = 0; |
| qp->abts_nvme_io_bufs = 0; |
| spin_unlock(&qp->io_buf_list_put_lock); |
| spin_unlock(&qp->abts_io_buf_list_lock); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { |
| spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock); |
| list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list, |
| &nvmet_aborts); |
| spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock); |
| list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) { |
| ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP); |
| lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); |
| } |
| } |
| |
| lpfc_sli4_free_sp_events(phba); |
| return cnt; |
| } |
| |
| /** |
| * lpfc_hba_down_post - Wrapper func for hba down post routine |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine wraps the actual SLI3 or SLI4 routine for performing |
| * uninitialization after the HBA is reset when bring down the SLI Layer. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| int |
| lpfc_hba_down_post(struct lpfc_hba *phba) |
| { |
| return (*phba->lpfc_hba_down_post)(phba); |
| } |
| |
| /** |
| * lpfc_hb_timeout - The HBA-timer timeout handler |
| * @t: timer context used to obtain the pointer to lpfc hba data structure. |
| * |
| * This is the HBA-timer timeout handler registered to the lpfc driver. When |
| * this timer fires, a HBA timeout event shall be posted to the lpfc driver |
| * work-port-events bitmap and the worker thread is notified. This timeout |
| * event will be used by the worker thread to invoke the actual timeout |
| * handler routine, lpfc_hb_timeout_handler. Any periodical operations will |
| * be performed in the timeout handler and the HBA timeout event bit shall |
| * be cleared by the worker thread after it has taken the event bitmap out. |
| **/ |
| static void |
| lpfc_hb_timeout(struct timer_list *t) |
| { |
| struct lpfc_hba *phba; |
| uint32_t tmo_posted; |
| unsigned long iflag; |
| |
| phba = from_timer(phba, t, hb_tmofunc); |
| |
| /* Check for heart beat timeout conditions */ |
| spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
| tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; |
| if (!tmo_posted) |
| phba->pport->work_port_events |= WORKER_HB_TMO; |
| spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); |
| |
| /* Tell the worker thread there is work to do */ |
| if (!tmo_posted) |
| lpfc_worker_wake_up(phba); |
| return; |
| } |
| |
| /** |
| * lpfc_rrq_timeout - The RRQ-timer timeout handler |
| * @t: timer context used to obtain the pointer to lpfc hba data structure. |
| * |
| * This is the RRQ-timer timeout handler registered to the lpfc driver. When |
| * this timer fires, a RRQ timeout event shall be posted to the lpfc driver |
| * work-port-events bitmap and the worker thread is notified. This timeout |
| * event will be used by the worker thread to invoke the actual timeout |
| * handler routine, lpfc_rrq_handler. Any periodical operations will |
| * be performed in the timeout handler and the RRQ timeout event bit shall |
| * be cleared by the worker thread after it has taken the event bitmap out. |
| **/ |
| static void |
| lpfc_rrq_timeout(struct timer_list *t) |
| { |
| struct lpfc_hba *phba; |
| unsigned long iflag; |
| |
| phba = from_timer(phba, t, rrq_tmr); |
| spin_lock_irqsave(&phba->pport->work_port_lock, iflag); |
| if (!(phba->pport->load_flag & FC_UNLOADING)) |
| phba->hba_flag |= HBA_RRQ_ACTIVE; |
| else |
| phba->hba_flag &= ~HBA_RRQ_ACTIVE; |
| spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); |
| |
| if (!(phba->pport->load_flag & FC_UNLOADING)) |
| lpfc_worker_wake_up(phba); |
| } |
| |
| /** |
| * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function |
| * @phba: pointer to lpfc hba data structure. |
| * @pmboxq: pointer to the driver internal queue element for mailbox command. |
| * |
| * This is the callback function to the lpfc heart-beat mailbox command. |
| * If configured, the lpfc driver issues the heart-beat mailbox command to |
| * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the |
| * heart-beat mailbox command is issued, the driver shall set up heart-beat |
| * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks |
| * heart-beat outstanding state. Once the mailbox command comes back and |
| * no error conditions detected, the heart-beat mailbox command timer is |
| * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding |
| * state is cleared for the next heart-beat. If the timer expired with the |
| * heart-beat outstanding state set, the driver will put the HBA offline. |
| **/ |
| static void |
| lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) |
| { |
| unsigned long drvr_flag; |
| |
| spin_lock_irqsave(&phba->hbalock, drvr_flag); |
| phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO); |
| spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
| |
| /* Check and reset heart-beat timer if necessary */ |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && |
| !(phba->link_state == LPFC_HBA_ERROR) && |
| !(phba->pport->load_flag & FC_UNLOADING)) |
| mod_timer(&phba->hb_tmofunc, |
| jiffies + |
| msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); |
| return; |
| } |
| |
| /* |
| * lpfc_idle_stat_delay_work - idle_stat tracking |
| * |
| * This routine tracks per-cq idle_stat and determines polling decisions. |
| * |
| * Return codes: |
| * None |
| **/ |
| static void |
| lpfc_idle_stat_delay_work(struct work_struct *work) |
| { |
| struct lpfc_hba *phba = container_of(to_delayed_work(work), |
| struct lpfc_hba, |
| idle_stat_delay_work); |
| struct lpfc_queue *cq; |
| struct lpfc_sli4_hdw_queue *hdwq; |
| struct lpfc_idle_stat *idle_stat; |
| u32 i, idle_percent; |
| u64 wall, wall_idle, diff_wall, diff_idle, busy_time; |
| |
| if (phba->pport->load_flag & FC_UNLOADING) |
| return; |
| |
| if (phba->link_state == LPFC_HBA_ERROR || |
| phba->pport->fc_flag & FC_OFFLINE_MODE || |
| phba->cmf_active_mode != LPFC_CFG_OFF) |
| goto requeue; |
| |
| for_each_present_cpu(i) { |
| hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq]; |
| cq = hdwq->io_cq; |
| |
| /* Skip if we've already handled this cq's primary CPU */ |
| if (cq->chann != i) |
| continue; |
| |
| idle_stat = &phba->sli4_hba.idle_stat[i]; |
| |
| /* get_cpu_idle_time returns values as running counters. Thus, |
| * to know the amount for this period, the prior counter values |
| * need to be subtracted from the current counter values. |
| * From there, the idle time stat can be calculated as a |
| * percentage of 100 - the sum of the other consumption times. |
| */ |
| wall_idle = get_cpu_idle_time(i, &wall, 1); |
| diff_idle = wall_idle - idle_stat->prev_idle; |
| diff_wall = wall - idle_stat->prev_wall; |
| |
| if (diff_wall <= diff_idle) |
| busy_time = 0; |
| else |
| busy_time = diff_wall - diff_idle; |
| |
| idle_percent = div64_u64(100 * busy_time, diff_wall); |
| idle_percent = 100 - idle_percent; |
| |
| if (idle_percent < 15) |
| cq->poll_mode = LPFC_QUEUE_WORK; |
| else |
| cq->poll_mode = LPFC_IRQ_POLL; |
| |
| idle_stat->prev_idle = wall_idle; |
| idle_stat->prev_wall = wall; |
| } |
| |
| requeue: |
| schedule_delayed_work(&phba->idle_stat_delay_work, |
| msecs_to_jiffies(LPFC_IDLE_STAT_DELAY)); |
| } |
| |
| static void |
| lpfc_hb_eq_delay_work(struct work_struct *work) |
| { |
| struct lpfc_hba *phba = container_of(to_delayed_work(work), |
| struct lpfc_hba, eq_delay_work); |
| struct lpfc_eq_intr_info *eqi, *eqi_new; |
| struct lpfc_queue *eq, *eq_next; |
| unsigned char *ena_delay = NULL; |
| uint32_t usdelay; |
| int i; |
| |
| if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING) |
| return; |
| |
| if (phba->link_state == LPFC_HBA_ERROR || |
| phba->pport->fc_flag & FC_OFFLINE_MODE) |
| goto requeue; |
| |
| ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay), |
| GFP_KERNEL); |
| if (!ena_delay) |
| goto requeue; |
| |
| for (i = 0; i < phba->cfg_irq_chann; i++) { |
| /* Get the EQ corresponding to the IRQ vector */ |
| eq = phba->sli4_hba.hba_eq_hdl[i].eq; |
| if (!eq) |
| continue; |
| if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) { |
| eq->q_flag &= ~HBA_EQ_DELAY_CHK; |
| ena_delay[eq->last_cpu] = 1; |
| } |
| } |
| |
| for_each_present_cpu(i) { |
| eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); |
| if (ena_delay[i]) { |
| usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP; |
| if (usdelay > LPFC_MAX_AUTO_EQ_DELAY) |
| usdelay = LPFC_MAX_AUTO_EQ_DELAY; |
| } else { |
| usdelay = 0; |
| } |
| |
| eqi->icnt = 0; |
| |
| list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) { |
| if (unlikely(eq->last_cpu != i)) { |
| eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info, |
| eq->last_cpu); |
| list_move_tail(&eq->cpu_list, &eqi_new->list); |
| continue; |
| } |
| if (usdelay != eq->q_mode) |
| lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1, |
| usdelay); |
| } |
| } |
| |
| kfree(ena_delay); |
| |
| requeue: |
| queue_delayed_work(phba->wq, &phba->eq_delay_work, |
| msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); |
| } |
| |
| /** |
| * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * For each heartbeat, this routine does some heuristic methods to adjust |
| * XRI distribution. The goal is to fully utilize free XRIs. |
| **/ |
| static void lpfc_hb_mxp_handler(struct lpfc_hba *phba) |
| { |
| u32 i; |
| u32 hwq_count; |
| |
| hwq_count = phba->cfg_hdw_queue; |
| for (i = 0; i < hwq_count; i++) { |
| /* Adjust XRIs in private pool */ |
| lpfc_adjust_pvt_pool_count(phba, i); |
| |
| /* Adjust high watermark */ |
| lpfc_adjust_high_watermark(phba, i); |
| |
| #ifdef LPFC_MXP_STAT |
| /* Snapshot pbl, pvt and busy count */ |
| lpfc_snapshot_mxp(phba, i); |
| #endif |
| } |
| } |
| |
| /** |
| * lpfc_issue_hb_mbox - Issues heart-beat mailbox command |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * If a HB mbox is not already in progrees, this routine will allocate |
| * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command, |
| * and issue it. The HBA_HBEAT_INP flag means the command is in progress. |
| **/ |
| int |
| lpfc_issue_hb_mbox(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *pmboxq; |
| int retval; |
| |
| /* Is a Heartbeat mbox already in progress */ |
| if (phba->hba_flag & HBA_HBEAT_INP) |
| return 0; |
| |
| pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmboxq) |
| return -ENOMEM; |
| |
| lpfc_heart_beat(phba, pmboxq); |
| pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; |
| pmboxq->vport = phba->pport; |
| retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| |
| if (retval != MBX_BUSY && retval != MBX_SUCCESS) { |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return -ENXIO; |
| } |
| phba->hba_flag |= HBA_HBEAT_INP; |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO |
| * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless |
| * of the value of lpfc_enable_hba_heartbeat. |
| * If lpfc_enable_hba_heartbeat is set, the timeout routine will always |
| * try to issue a MBX_HEARTBEAT mbox command. |
| **/ |
| void |
| lpfc_issue_hb_tmo(struct lpfc_hba *phba) |
| { |
| if (phba->cfg_enable_hba_heartbeat) |
| return; |
| phba->hba_flag |= HBA_HBEAT_TMO; |
| } |
| |
| /** |
| * lpfc_hb_timeout_handler - The HBA-timer timeout handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This is the actual HBA-timer timeout handler to be invoked by the worker |
| * thread whenever the HBA timer fired and HBA-timeout event posted. This |
| * handler performs any periodic operations needed for the device. If such |
| * periodic event has already been attended to either in the interrupt handler |
| * or by processing slow-ring or fast-ring events within the HBA-timer |
| * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets |
| * the timer for the next timeout period. If lpfc heart-beat mailbox command |
| * is configured and there is no heart-beat mailbox command outstanding, a |
| * heart-beat mailbox is issued and timer set properly. Otherwise, if there |
| * has been a heart-beat mailbox command outstanding, the HBA shall be put |
| * to offline. |
| **/ |
| void |
| lpfc_hb_timeout_handler(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| struct lpfc_dmabuf *buf_ptr; |
| int retval = 0; |
| int i, tmo; |
| struct lpfc_sli *psli = &phba->sli; |
| LIST_HEAD(completions); |
| |
| if (phba->cfg_xri_rebalancing) { |
| /* Multi-XRI pools handler */ |
| lpfc_hb_mxp_handler(phba); |
| } |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| lpfc_rcv_seq_check_edtov(vports[i]); |
| lpfc_fdmi_change_check(vports[i]); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| if ((phba->link_state == LPFC_HBA_ERROR) || |
| (phba->pport->load_flag & FC_UNLOADING) || |
| (phba->pport->fc_flag & FC_OFFLINE_MODE)) |
| return; |
| |
| if (phba->elsbuf_cnt && |
| (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { |
| spin_lock_irq(&phba->hbalock); |
| list_splice_init(&phba->elsbuf, &completions); |
| phba->elsbuf_cnt = 0; |
| phba->elsbuf_prev_cnt = 0; |
| spin_unlock_irq(&phba->hbalock); |
| |
| while (!list_empty(&completions)) { |
| list_remove_head(&completions, buf_ptr, |
| struct lpfc_dmabuf, list); |
| lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); |
| kfree(buf_ptr); |
| } |
| } |
| phba->elsbuf_prev_cnt = phba->elsbuf_cnt; |
| |
| /* If there is no heart beat outstanding, issue a heartbeat command */ |
| if (phba->cfg_enable_hba_heartbeat) { |
| /* If IOs are completing, no need to issue a MBX_HEARTBEAT */ |
| spin_lock_irq(&phba->pport->work_port_lock); |
| if (time_after(phba->last_completion_time + |
| msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), |
| jiffies)) { |
| spin_unlock_irq(&phba->pport->work_port_lock); |
| if (phba->hba_flag & HBA_HBEAT_INP) |
| tmo = (1000 * LPFC_HB_MBOX_TIMEOUT); |
| else |
| tmo = (1000 * LPFC_HB_MBOX_INTERVAL); |
| goto out; |
| } |
| spin_unlock_irq(&phba->pport->work_port_lock); |
| |
| /* Check if a MBX_HEARTBEAT is already in progress */ |
| if (phba->hba_flag & HBA_HBEAT_INP) { |
| /* |
| * If heart beat timeout called with HBA_HBEAT_INP set |
| * we need to give the hb mailbox cmd a chance to |
| * complete or TMO. |
| */ |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "0459 Adapter heartbeat still outstanding: " |
| "last compl time was %d ms.\n", |
| jiffies_to_msecs(jiffies |
| - phba->last_completion_time)); |
| tmo = (1000 * LPFC_HB_MBOX_TIMEOUT); |
| } else { |
| if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && |
| (list_empty(&psli->mboxq))) { |
| |
| retval = lpfc_issue_hb_mbox(phba); |
| if (retval) { |
| tmo = (1000 * LPFC_HB_MBOX_INTERVAL); |
| goto out; |
| } |
| phba->skipped_hb = 0; |
| } else if (time_before_eq(phba->last_completion_time, |
| phba->skipped_hb)) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "2857 Last completion time not " |
| " updated in %d ms\n", |
| jiffies_to_msecs(jiffies |
| - phba->last_completion_time)); |
| } else |
| phba->skipped_hb = jiffies; |
| |
| tmo = (1000 * LPFC_HB_MBOX_TIMEOUT); |
| goto out; |
| } |
| } else { |
| /* Check to see if we want to force a MBX_HEARTBEAT */ |
| if (phba->hba_flag & HBA_HBEAT_TMO) { |
| retval = lpfc_issue_hb_mbox(phba); |
| if (retval) |
| tmo = (1000 * LPFC_HB_MBOX_INTERVAL); |
| else |
| tmo = (1000 * LPFC_HB_MBOX_TIMEOUT); |
| goto out; |
| } |
| tmo = (1000 * LPFC_HB_MBOX_INTERVAL); |
| } |
| out: |
| mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo)); |
| } |
| |
| /** |
| * lpfc_offline_eratt - Bring lpfc offline on hardware error attention |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to bring the HBA offline when HBA hardware error |
| * other than Port Error 6 has been detected. |
| **/ |
| static void |
| lpfc_offline_eratt(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); |
| |
| lpfc_offline(phba); |
| lpfc_reset_barrier(phba); |
| spin_lock_irq(&phba->hbalock); |
| lpfc_sli_brdreset(phba); |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_hba_down_post(phba); |
| lpfc_sli_brdready(phba, HS_MBRDY); |
| lpfc_unblock_mgmt_io(phba); |
| phba->link_state = LPFC_HBA_ERROR; |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is called to bring a SLI4 HBA offline when HBA hardware error |
| * other than Port Error 6 has been detected. |
| **/ |
| void |
| lpfc_sli4_offline_eratt(struct lpfc_hba *phba) |
| { |
| spin_lock_irq(&phba->hbalock); |
| if (phba->link_state == LPFC_HBA_ERROR && |
| phba->hba_flag & HBA_PCI_ERR) { |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| phba->link_state = LPFC_HBA_ERROR; |
| spin_unlock_irq(&phba->hbalock); |
| |
| lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); |
| lpfc_sli_flush_io_rings(phba); |
| lpfc_offline(phba); |
| lpfc_hba_down_post(phba); |
| lpfc_unblock_mgmt_io(phba); |
| } |
| |
| /** |
| * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to handle the deferred HBA hardware error |
| * conditions. This type of error is indicated by HBA by setting ER1 |
| * and another ER bit in the host status register. The driver will |
| * wait until the ER1 bit clears before handling the error condition. |
| **/ |
| static void |
| lpfc_handle_deferred_eratt(struct lpfc_hba *phba) |
| { |
| uint32_t old_host_status = phba->work_hs; |
| struct lpfc_sli *psli = &phba->sli; |
| |
| /* If the pci channel is offline, ignore possible errors, |
| * since we cannot communicate with the pci card anyway. |
| */ |
| if (pci_channel_offline(phba->pcidev)) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~DEFER_ERATT; |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0479 Deferred Adapter Hardware Error " |
| "Data: x%x x%x x%x\n", |
| phba->work_hs, phba->work_status[0], |
| phba->work_status[1]); |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| |
| |
| /* |
| * Firmware stops when it triggred erratt. That could cause the I/Os |
| * dropped by the firmware. Error iocb (I/O) on txcmplq and let the |
| * SCSI layer retry it after re-establishing link. |
| */ |
| lpfc_sli_abort_fcp_rings(phba); |
| |
| /* |
| * There was a firmware error. Take the hba offline and then |
| * attempt to restart it. |
| */ |
| lpfc_offline_prep(phba, LPFC_MBX_WAIT); |
| lpfc_offline(phba); |
| |
| /* Wait for the ER1 bit to clear.*/ |
| while (phba->work_hs & HS_FFER1) { |
| msleep(100); |
| if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { |
| phba->work_hs = UNPLUG_ERR ; |
| break; |
| } |
| /* If driver is unloading let the worker thread continue */ |
| if (phba->pport->load_flag & FC_UNLOADING) { |
| phba->work_hs = 0; |
| break; |
| } |
| } |
| |
| /* |
| * This is to ptrotect against a race condition in which |
| * first write to the host attention register clear the |
| * host status register. |
| */ |
| if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) |
| phba->work_hs = old_host_status & ~HS_FFER1; |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~DEFER_ERATT; |
| spin_unlock_irq(&phba->hbalock); |
| phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); |
| phba->work_status[1] = readl(phba->MBslimaddr + 0xac); |
| } |
| |
| static void |
| lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) |
| { |
| struct lpfc_board_event_header board_event; |
| struct Scsi_Host *shost; |
| |
| board_event.event_type = FC_REG_BOARD_EVENT; |
| board_event.subcategory = LPFC_EVENT_PORTINTERR; |
| shost = lpfc_shost_from_vport(phba->pport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(board_event), |
| (char *) &board_event, |
| LPFC_NL_VENDOR_ID); |
| } |
| |
| /** |
| * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to handle the following HBA hardware error |
| * conditions: |
| * 1 - HBA error attention interrupt |
| * 2 - DMA ring index out of range |
| * 3 - Mailbox command came back as unknown |
| **/ |
| static void |
| lpfc_handle_eratt_s3(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct lpfc_sli *psli = &phba->sli; |
| uint32_t event_data; |
| unsigned long temperature; |
| struct temp_event temp_event_data; |
| struct Scsi_Host *shost; |
| |
| /* If the pci channel is offline, ignore possible errors, |
| * since we cannot communicate with the pci card anyway. |
| */ |
| if (pci_channel_offline(phba->pcidev)) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~DEFER_ERATT; |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| |
| /* If resets are disabled then leave the HBA alone and return */ |
| if (!phba->cfg_enable_hba_reset) |
| return; |
| |
| /* Send an internal error event to mgmt application */ |
| lpfc_board_errevt_to_mgmt(phba); |
| |
| if (phba->hba_flag & DEFER_ERATT) |
| lpfc_handle_deferred_eratt(phba); |
| |
| if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { |
| if (phba->work_hs & HS_FFER6) |
| /* Re-establishing Link */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, |
| "1301 Re-establishing Link " |
| "Data: x%x x%x x%x\n", |
| phba->work_hs, phba->work_status[0], |
| phba->work_status[1]); |
| if (phba->work_hs & HS_FFER8) |
| /* Device Zeroization */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, |
| "2861 Host Authentication device " |
| "zeroization Data:x%x x%x x%x\n", |
| phba->work_hs, phba->work_status[0], |
| phba->work_status[1]); |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* |
| * Firmware stops when it triggled erratt with HS_FFER6. |
| * That could cause the I/Os dropped by the firmware. |
| * Error iocb (I/O) on txcmplq and let the SCSI layer |
| * retry it after re-establishing link. |
| */ |
| lpfc_sli_abort_fcp_rings(phba); |
| |
| /* |
| * There was a firmware error. Take the hba offline and then |
| * attempt to restart it. |
| */ |
| lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); |
| lpfc_offline(phba); |
| lpfc_sli_brdrestart(phba); |
| if (lpfc_online(phba) == 0) { /* Initialize the HBA */ |
| lpfc_unblock_mgmt_io(phba); |
| return; |
| } |
| lpfc_unblock_mgmt_io(phba); |
| } else if (phba->work_hs & HS_CRIT_TEMP) { |
| temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); |
| temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; |
| temp_event_data.event_code = LPFC_CRIT_TEMP; |
| temp_event_data.data = (uint32_t)temperature; |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0406 Adapter maximum temperature exceeded " |
| "(%ld), taking this port offline " |
| "Data: x%x x%x x%x\n", |
| temperature, phba->work_hs, |
| phba->work_status[0], phba->work_status[1]); |
| |
| shost = lpfc_shost_from_vport(phba->pport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(temp_event_data), |
| (char *) &temp_event_data, |
| SCSI_NL_VID_TYPE_PCI |
| | PCI_VENDOR_ID_EMULEX); |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->over_temp_state = HBA_OVER_TEMP; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_offline_eratt(phba); |
| |
| } else { |
| /* The if clause above forces this code path when the status |
| * failure is a value other than FFER6. Do not call the offline |
| * twice. This is the adapter hardware error path. |
| */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0457 Adapter Hardware Error " |
| "Data: x%x x%x x%x\n", |
| phba->work_hs, |
| phba->work_status[0], phba->work_status[1]); |
| |
| event_data = FC_REG_DUMP_EVENT; |
| shost = lpfc_shost_from_vport(vport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(event_data), (char *) &event_data, |
| SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); |
| |
| lpfc_offline_eratt(phba); |
| } |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg |
| * @phba: pointer to lpfc hba data structure. |
| * @mbx_action: flag for mailbox shutdown action. |
| * @en_rn_msg: send reset/port recovery message. |
| * This routine is invoked to perform an SLI4 port PCI function reset in |
| * response to port status register polling attention. It waits for port |
| * status register (ERR, RDY, RN) bits before proceeding with function reset. |
| * During this process, interrupt vectors are freed and later requested |
| * for handling possible port resource change. |
| **/ |
| static int |
| lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, |
| bool en_rn_msg) |
| { |
| int rc; |
| uint32_t intr_mode; |
| LPFC_MBOXQ_t *mboxq; |
| |
| if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= |
| LPFC_SLI_INTF_IF_TYPE_2) { |
| /* |
| * On error status condition, driver need to wait for port |
| * ready before performing reset. |
| */ |
| rc = lpfc_sli4_pdev_status_reg_wait(phba); |
| if (rc) |
| return rc; |
| } |
| |
| /* need reset: attempt for port recovery */ |
| if (en_rn_msg) |
| lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| "2887 Reset Needed: Attempting Port " |
| "Recovery...\n"); |
| |
| /* If we are no wait, the HBA has been reset and is not |
| * functional, thus we should clear |
| * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags. |
| */ |
| if (mbx_action == LPFC_MBX_NO_WAIT) { |
| spin_lock_irq(&phba->hbalock); |
| phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE; |
| if (phba->sli.mbox_active) { |
| mboxq = phba->sli.mbox_active; |
| mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; |
| __lpfc_mbox_cmpl_put(phba, mboxq); |
| phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| phba->sli.mbox_active = NULL; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| lpfc_offline_prep(phba, mbx_action); |
| lpfc_sli_flush_io_rings(phba); |
| lpfc_offline(phba); |
| /* release interrupt for possible resource change */ |
| lpfc_sli4_disable_intr(phba); |
| rc = lpfc_sli_brdrestart(phba); |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "6309 Failed to restart board\n"); |
| return rc; |
| } |
| /* request and enable interrupt */ |
| intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); |
| if (intr_mode == LPFC_INTR_ERROR) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "3175 Failed to enable interrupt\n"); |
| return -EIO; |
| } |
| phba->intr_mode = intr_mode; |
| rc = lpfc_online(phba); |
| if (rc == 0) |
| lpfc_unblock_mgmt_io(phba); |
| |
| return rc; |
| } |
| |
| /** |
| * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked to handle the SLI4 HBA hardware error attention |
| * conditions. |
| **/ |
| static void |
| lpfc_handle_eratt_s4(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| uint32_t event_data; |
| struct Scsi_Host *shost; |
| uint32_t if_type; |
| struct lpfc_register portstat_reg = {0}; |
| uint32_t reg_err1, reg_err2; |
| uint32_t uerrlo_reg, uemasklo_reg; |
| uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; |
| bool en_rn_msg = true; |
| struct temp_event temp_event_data; |
| struct lpfc_register portsmphr_reg; |
| int rc, i; |
| |
| /* If the pci channel is offline, ignore possible errors, since |
| * we cannot communicate with the pci card anyway. |
| */ |
| if (pci_channel_offline(phba->pcidev)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "3166 pci channel is offline\n"); |
| return; |
| } |
| |
| memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); |
| if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
| switch (if_type) { |
| case LPFC_SLI_INTF_IF_TYPE_0: |
| pci_rd_rc1 = lpfc_readl( |
| phba->sli4_hba.u.if_type0.UERRLOregaddr, |
| &uerrlo_reg); |
| pci_rd_rc2 = lpfc_readl( |
| phba->sli4_hba.u.if_type0.UEMASKLOregaddr, |
| &uemasklo_reg); |
| /* consider PCI bus read error as pci_channel_offline */ |
| if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) |
| return; |
| if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { |
| lpfc_sli4_offline_eratt(phba); |
| return; |
| } |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "7623 Checking UE recoverable"); |
| |
| for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { |
| if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, |
| &portsmphr_reg.word0)) |
| continue; |
| |
| smphr_port_status = bf_get(lpfc_port_smphr_port_status, |
| &portsmphr_reg); |
| if ((smphr_port_status & LPFC_PORT_SEM_MASK) == |
| LPFC_PORT_SEM_UE_RECOVERABLE) |
| break; |
| /*Sleep for 1Sec, before checking SEMAPHORE */ |
| msleep(1000); |
| } |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "4827 smphr_port_status x%x : Waited %dSec", |
| smphr_port_status, i); |
| |
| /* Recoverable UE, reset the HBA device */ |
| if ((smphr_port_status & LPFC_PORT_SEM_MASK) == |
| LPFC_PORT_SEM_UE_RECOVERABLE) { |
| for (i = 0; i < 20; i++) { |
| msleep(1000); |
| if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, |
| &portsmphr_reg.word0) && |
| (LPFC_POST_STAGE_PORT_READY == |
| bf_get(lpfc_port_smphr_port_status, |
| &portsmphr_reg))) { |
| rc = lpfc_sli4_port_sta_fn_reset(phba, |
| LPFC_MBX_NO_WAIT, en_rn_msg); |
| if (rc == 0) |
| return; |
| lpfc_printf_log(phba, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "4215 Failed to recover UE"); |
| break; |
| } |
| } |
| } |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "7624 Firmware not ready: Failing UE recovery," |
| " waited %dSec", i); |
| phba->link_state = LPFC_HBA_ERROR; |
| break; |
| |
| case LPFC_SLI_INTF_IF_TYPE_2: |
| case LPFC_SLI_INTF_IF_TYPE_6: |
| pci_rd_rc1 = lpfc_readl( |
| phba->sli4_hba.u.if_type2.STATUSregaddr, |
| &portstat_reg.word0); |
| /* consider PCI bus read error as pci_channel_offline */ |
| if (pci_rd_rc1 == -EIO) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "3151 PCI bus read access failure: x%x\n", |
| readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); |
| lpfc_sli4_offline_eratt(phba); |
| return; |
| } |
| reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); |
| reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); |
| if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "2889 Port Overtemperature event, " |
| "taking port offline Data: x%x x%x\n", |
| reg_err1, reg_err2); |
| |
| phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; |
| temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; |
| temp_event_data.event_code = LPFC_CRIT_TEMP; |
| temp_event_data.data = 0xFFFFFFFF; |
| |
| shost = lpfc_shost_from_vport(phba->pport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(temp_event_data), |
| (char *)&temp_event_data, |
| SCSI_NL_VID_TYPE_PCI |
| | PCI_VENDOR_ID_EMULEX); |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->over_temp_state = HBA_OVER_TEMP; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_offline_eratt(phba); |
| return; |
| } |
| if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && |
| reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "3143 Port Down: Firmware Update " |
| "Detected\n"); |
| en_rn_msg = false; |
| } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && |
| reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "3144 Port Down: Debug Dump\n"); |
| else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && |
| reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "3145 Port Down: Provisioning\n"); |
| |
| /* If resets are disabled then leave the HBA alone and return */ |
| if (!phba->cfg_enable_hba_reset) |
| return; |
| |
| /* Check port status register for function reset */ |
| rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, |
| en_rn_msg); |
| if (rc == 0) { |
| /* don't report event on forced debug dump */ |
| if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && |
| reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) |
| return; |
| else |
| break; |
| } |
| /* fall through for not able to recover */ |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "3152 Unrecoverable error\n"); |
| phba->link_state = LPFC_HBA_ERROR; |
| break; |
| case LPFC_SLI_INTF_IF_TYPE_1: |
| default: |
| break; |
| } |
| lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
| "3123 Report dump event to upper layer\n"); |
| /* Send an internal error event to mgmt application */ |
| lpfc_board_errevt_to_mgmt(phba); |
| |
| event_data = FC_REG_DUMP_EVENT; |
| shost = lpfc_shost_from_vport(vport); |
| fc_host_post_vendor_event(shost, fc_get_event_number(), |
| sizeof(event_data), (char *) &event_data, |
| SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); |
| } |
| |
| /** |
| * lpfc_handle_eratt - Wrapper func for handling hba error attention |
| * @phba: pointer to lpfc HBA data structure. |
| * |
| * This routine wraps the actual SLI3 or SLI4 hba error attention handling |
| * routine from the API jump table function pointer from the lpfc_hba struct. |
| * |
| * Return codes |
| * 0 - success. |
| * Any other value - error. |
| **/ |
| void |
| lpfc_handle_eratt(struct lpfc_hba *phba) |
| { |
| (*phba->lpfc_handle_eratt)(phba); |
| } |
| |
| /** |
| * lpfc_handle_latt - The HBA link event handler |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine is invoked from the worker thread to handle a HBA host |
| * attention link event. SLI3 only. |
| **/ |
| void |
| lpfc_handle_latt(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct lpfc_sli *psli = &phba->sli; |
| LPFC_MBOXQ_t *pmb; |
| volatile uint32_t control; |
| struct lpfc_dmabuf *mp; |
| int rc = 0; |
| |
| pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmb) { |
| rc = 1; |
| goto lpfc_handle_latt_err_exit; |
| } |
| |
| mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| if (!mp) { |
| rc = 2; |
| goto lpfc_handle_latt_free_pmb; |
| } |
| |
| mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); |
| if (!mp->virt) { |
| rc = 3; |
| goto lpfc_handle_latt_free_mp; |
| } |
| |
| /* Cleanup any outstanding ELS commands */ |
| lpfc_els_flush_all_cmd(phba); |
| |
| psli->slistat.link_event++; |
| lpfc_read_topology(phba, pmb, mp); |
| pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; |
| pmb->vport = vport; |
| /* Block ELS IOCBs until we have processed this mbox command */ |
| phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; |
| rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| rc = 4; |
| goto lpfc_handle_latt_free_mbuf; |
| } |
| |
| /* Clear Link Attention in HA REG */ |
| spin_lock_irq(&phba->hbalock); |
| writel(HA_LATT, phba->HAregaddr); |
| readl(phba->HAregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| |
| return; |
| |
| lpfc_handle_latt_free_mbuf: |
| phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| lpfc_handle_latt_free_mp: |
| kfree(mp); |
| lpfc_handle_latt_free_pmb: |
| mempool_free(pmb, phba->mbox_mem_pool); |
| lpfc_handle_latt_err_exit: |
| /* Enable 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 */ |
| |
| /* Clear Link Attention in HA REG */ |
| writel(HA_LATT, phba->HAregaddr); |
| readl(phba->HAregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_linkdown(phba); |
| phba->link_state = LPFC_HBA_ERROR; |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
| "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_parse_vpd - Parse VPD (Vital Product Data) |
| * @phba: pointer to lpfc hba data structure. |
| * @vpd: pointer to the vital product data. |
| * @len: length of the vital product data in bytes. |
| * |
| * This routine parses the Vital Product Data (VPD). The VPD is treated as |
| * an array of characters. In this routine, the ModelName, ProgramType, and |
| * ModelDesc, etc. fields of the phba data structure will be populated. |
| * |
| * Return codes |
| * 0 - pointer to the VPD passed in is NULL |
| * 1 - success |
| **/ |
| int |
| lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) |
| { |
| uint8_t lenlo, lenhi; |
| int Length; |
| int i, j; |
| int finished = 0; |
| int index = 0; |
| |
| if (!vpd) |
| return 0; |
| |
| /* Vital Product */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| "0455 Vital Product Data: x%x x%x x%x x%x\n", |
| (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], |
| (uint32_t) vpd[3]); |
| while (!finished && (index < (len - 4))) { |
| switch (vpd[index]) { |
| case 0x82: |
| case 0x91: |
| index += 1; |
| lenlo = vpd[index]; |
| index += 1; |
| lenhi = vpd[index]; |
| index += 1; |
| i = ((((unsigned short)lenhi) << 8) + lenlo); |
| index += i; |
| break; |
| case 0x90: |
| index += 1; |
| lenlo = vpd[index]; |
| index += 1; |
| lenhi = vpd[index]; |
| index += 1; |
| Length = ((((unsigned short)lenhi) << 8) + lenlo); |
| if (Length > len - index) |
| Length = len - index; |
| while (Length > 0) { |
| /* Look for Serial Number */ |
| if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| phba->SerialNumber[j++] = vpd[index++]; |
| if (j == 31) |
| break; |
| } |
| phba->SerialNumber[j] = 0; |
| continue; |
| } |
| else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { |
| phba->vpd_flag |= VPD_MODEL_DESC; |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| phba->ModelDesc[j++] = vpd[index++]; |
| if (j == 255) |
| break; |
| } |
| phba->ModelDesc[j] = 0; |
| continue; |
| } |
| else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { |
| phba->vpd_flag |= VPD_MODEL_NAME; |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| phba->ModelName[j++] = vpd[index++]; |
| if (j == 79) |
| break; |
| } |
| phba->ModelName[j] = 0; |
| continue; |
| } |
| else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { |
| phba->vpd_flag |= VPD_PROGRAM_TYPE; |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| phba->ProgramType[j++] = vpd[index++]; |
| if (j == 255) |
| break; |
| } |
| phba->ProgramType[j] = 0; |
| continue; |
| } |
| else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { |
| phba->vpd_flag |= VPD_PORT; |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| j = 0; |
| Length -= (3+i); |
| while(i--) { |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| (phba->sli4_hba.pport_name_sta == |
| LPFC_SLI4_PPNAME_GET)) { |
| j++; |
| index++; |
| } else |
| phba->Port[j++] = vpd[index++]; |
| if (j == 19) |
| break; |
| } |
| if ((phba->sli_rev != LPFC_SLI_REV4) || |
| (phba->sli4_hba.pport_name_sta == |
| LPFC_SLI4_PPNAME_NON)) |
| phba->Port[j] = 0; |
| continue; |
| } |
| else { |
| index += 2; |
| i = vpd[index]; |
| index += 1; |
| index += i; |
| Length -= (3 + i); |
| } |
| } |
| finished = 0; |
| break; |
| case 0x78: |
| finished = 1; |
| break; |
| default: |
| index ++; |
| break; |
| } |
| } |
| |
| return(1); |
| } |
| |
| /** |
| * lpfc_get_hba_model_desc - Retrieve HBA device model name and description |
| * @phba: pointer to lpfc hba data structure. |
| * @mdp: pointer to the data structure to hold the derived model name. |
| * @descp: pointer to the data structure to hold the derived description. |
| * |
| * This routine retrieves HBA's description based on its registered PCI device |
| * ID. The @descp passed into this function points to an array of 256 chars. It |
| * shall be returned with the model name, maximum speed, and the host bus type. |
| * The @mdp passed into this function points to an array of 80 chars. When the |
| * function returns, the @mdp will be filled with the model name. |
| **/ |
| static void |
| lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) |
| { |
| lpfc_vpd_t *vp; |
| uint16_t dev_id = phba->pcidev->device; |
| int max_speed; |
| int GE = 0; |
| int oneConnect = 0; /* default is not a oneConnect */ |
| struct { |
| char *name; |
| char *bus; |
| char *function; |
| } m = {"<Unknown>", "", ""}; |
| |
| if (mdp && mdp[0] != '\0' |
| && descp && descp[0] != '\0') |
| return; |
| |
| if (phba->lmt & LMT_64Gb) |
| max_speed = 64; |
| else if (phba->lmt & LMT_32Gb) |
| max_speed = 32; |
| else if (phba->lmt & LMT_16Gb) |
| max_speed = 16; |
| else if (phba->lmt & LMT_10Gb) |
| max_speed = 10; |
| else if (phba->lmt & LMT_8Gb) |
| max_speed = 8; |
| else if (phba->lmt & LMT_4Gb) |
| max_speed = 4; |
| else if (phba->lmt & LMT_2Gb) |
| max_speed = 2; |
| else if (phba->lmt & LMT_1Gb) |
| max_speed = 1; |
| else |
| max_speed = 0; |
| |
| vp = &phba->vpd; |
| |
| switch (dev_id) { |
| case PCI_DEVICE_ID_FIREFLY: |
| m = (typeof(m)){"LP6000", "PCI", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SUPERFLY: |
| if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) |
| m = (typeof(m)){"LP7000", "PCI", ""}; |
| else |
| m = (typeof(m)){"LP7000E", "PCI", ""}; |
| m.function = "Obsolete, Unsupported Fibre Channel Adapter"; |
| break; |
| case PCI_DEVICE_ID_DRAGONFLY: |
| m = (typeof(m)){"LP8000", "PCI", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_CENTAUR: |
| if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) |
| m = (typeof(m)){"LP9002", "PCI", ""}; |
| else |
| m = (typeof(m)){"LP9000", "PCI", ""}; |
| m.function = "Obsolete, Unsupported Fibre Channel Adapter"; |
| break; |
| case PCI_DEVICE_ID_RFLY: |
| m = (typeof(m)){"LP952", "PCI", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_PEGASUS: |
| m = (typeof(m)){"LP9802", "PCI-X", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_THOR: |
| m = (typeof(m)){"LP10000", "PCI-X", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_VIPER: |
| m = (typeof(m)){"LPX1000", "PCI-X", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_PFLY: |
| m = (typeof(m)){"LP982", "PCI-X", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_TFLY: |
| m = (typeof(m)){"LP1050", "PCI-X", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS: |
| m = (typeof(m)){"LP11000", "PCI-X2", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS_SCSP: |
| m = (typeof(m)){"LP11000-SP", "PCI-X2", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_HELIOS_DCSP: |
| m = (typeof(m)){"LP11002-SP", "PCI-X2", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE: |
| m = (typeof(m)){"LPe1000", "PCIe", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE_SCSP: |
| m = (typeof(m)){"LPe1000-SP", "PCIe", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_NEPTUNE_DCSP: |
| m = (typeof(m)){"LPe1002-SP", "PCIe", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_BMID: |
| m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_BSMB: |
| m = (typeof(m)){"LP111", "PCI-X2", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR: |
| m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR_SCSP: |
| m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_ZEPHYR_DCSP: |
| m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; |
| GE = 1; |
| break; |
| case PCI_DEVICE_ID_ZMID: |
| m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_ZSMB: |
| m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LP101: |
| m = (typeof(m)){"LP101", "PCI-X", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LP10000S: |
| m = (typeof(m)){"LP10000-S", "PCI", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LP11000S: |
| m = (typeof(m)){"LP11000-S", "PCI-X2", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LPE11000S: |
| m = (typeof(m)){"LPe11000-S", "PCIe", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT: |
| m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_MID: |
| m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_SMB: |
| m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_DCSP: |
| m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_SCSP: |
| m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SAT_S: |
| m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_HORNET: |
| m = (typeof(m)){"LP21000", "PCIe", |
| "Obsolete, Unsupported FCoE Adapter"}; |
| GE = 1; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_VF: |
| m = (typeof(m)){"LPev12000", "PCIe IOV", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_PF: |
| m = (typeof(m)){"LPev12000", "PCIe IOV", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_PROTEUS_S: |
| m = (typeof(m)){"LPemv12002-S", "PCIe IOV", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_TIGERSHARK: |
| oneConnect = 1; |
| m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; |
| break; |
| case PCI_DEVICE_ID_TOMCAT: |
| oneConnect = 1; |
| m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; |
| break; |
| case PCI_DEVICE_ID_FALCON: |
| m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", |
| "EmulexSecure Fibre"}; |
| break; |
| case PCI_DEVICE_ID_BALIUS: |
| m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_FC: |
| m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_FC_VF: |
| m = (typeof(m)){"LPe16000", "PCIe", |
| "Obsolete, Unsupported Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_FCOE: |
| oneConnect = 1; |
| m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_FCOE_VF: |
| oneConnect = 1; |
| m = (typeof(m)){"OCe15100", "PCIe", |
| "Obsolete, Unsupported FCoE"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_G6_FC: |
| m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_G7_FC: |
| m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_LANCER_G7P_FC: |
| m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"}; |
| break; |
| case PCI_DEVICE_ID_SKYHAWK: |
| case PCI_DEVICE_ID_SKYHAWK_VF: |
| oneConnect = 1; |
| m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; |
| break; |
| default: |
| m = (typeof(m)){"Unknown", "", ""}; |
| break; |
| } |
| |
| if (mdp && mdp[0] == '\0') |
| snprintf(mdp, 79,"%s", m.name); |
| /* |
| * oneConnect hba requires special processing, they are all initiators |
| * and we put the port number on the end |
| */ |
| if (descp && descp[0] == '\0') { |
| if (oneConnect) |
| snprintf(descp, 255, |
| "Emulex OneConnect %s, %s Initiator %s", |
| m.name, m.function, |
| phba->Port); |
| else if (max_speed == 0) |
| snprintf(descp, 255, |
| "Emulex %s %s %s", |
| m.name, m.bus, m.function); |
| else |
| snprintf(descp, 255, |
| "Emulex %s %d%s %s %s", |
| m.name, max_speed, (GE) ? "GE" : "Gb", |
| m.bus, m.function); |
| } |
| } |
| |
| /** |
| * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring |
| * @phba: pointer to lpfc hba data structure. |
| * @pring: pointer to a IOCB ring. |
| * @cnt: the number of IOCBs to be posted to the IOCB ring. |
| * |
| * This routine posts a given number of IOCBs with the associated DMA buffer |
| * descriptors specified by the cnt argument to the given IOCB ring. |
| * |
| * Return codes |
| * The number of IOCBs NOT able to be posted to the IOCB ring. |
| **/ |
| int |
| lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) |
| { |
| IOCB_t *icmd; |
| struct lpfc_iocbq *iocb; |
| struct lpfc_dmabuf *mp1, *mp2; |
| |
| cnt += pring->missbufcnt; |
| |
| /* While there are buffers to post */ |
| while (cnt > 0) { |
| /* Allocate buffer for command iocb */ |
| iocb = lpfc_sli_get_iocbq(phba); |
| if (iocb == NULL) { |
| pring->missbufcnt = cnt; |
| return cnt; |
| } |
| icmd = &iocb->iocb; |
| |
| /* 2 buffers can be posted per command */ |
| /* Allocate buffer to post */ |
| mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); |
| if (mp1) |
| mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); |
| if (!mp1 || !mp1->virt) { |
| kfree(mp1); |
| lpfc_sli_release_iocbq(phba, iocb); |
| pring->missbufcnt = cnt; |
| return cnt; |
| } |
| |
| INIT_LIST_HEAD(&mp1->list); |
| /* Allocate buffer to post */ |
| if (cnt > 1) { |
| mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); |
| if (mp2) |
| mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
| &mp2->phys); |
| if (!mp2 || !mp2->virt) { |
| kfree(mp2); |
| lpfc_mbuf_free(phba, mp1->virt, mp1->phys); |
| kfree(mp1); |
| lpfc_sli_release_iocbq(phba, iocb); |
| pring->missbufcnt = cnt; |
| return cnt; |
| } |
| |
| INIT_LIST_HEAD(&mp2->list); |
| } else { |
| mp2 = NULL; |
| } |
| |
| icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); |
| icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); |
| icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; |
| icmd->ulpBdeCount = 1; |
| cnt--; |
| if (mp2) { |
| icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); |
| icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); |
| icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; |
| cnt--; |
| icmd->ulpBdeCount = 2; |
| } |
| |
| icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; |
| icmd->ulpLe = 1; |
| |
| if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == |
| IOCB_ERROR) { |
| lpfc_mbuf_free(phba, mp1->virt, mp1->phys); |
| kfree(mp1); |
| cnt++; |
| if (mp2) { |
| lpfc_mbuf_free(phba, mp2->virt, mp2->phys); |
| kfree(mp2); |
| cnt++; |
| } |
| lpfc_sli_release_iocbq(phba, iocb); |
| pring->missbufcnt = cnt; |
| return cnt; |
| } |
| lpfc_sli_ringpostbuf_put(phba, pring, mp1); |
| if (mp2) |
| lpfc_sli_ringpostbuf_put(phba, pring, mp2); |
| } |
| pring->missbufcnt = 0; |
| return 0; |
| } |
| |
| /** |
| * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine posts initial receive IOCB buffers to the ELS ring. The |
| * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is |
| * set to 64 IOCBs. SLI3 only. |
| * |
| * Return codes |
| * 0 - success (currently always success) |
| **/ |
| static int |
| lpfc_post_rcv_buf(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli *psli = &phba->sli; |
| |
| /* Ring 0, ELS / CT buffers */ |
| lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); |
| /* Ring 2 - FCP no buffers needed */ |
| |
| return 0; |
| } |
| |
| #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) |
| |
| /** |
| * lpfc_sha_init - Set up initial array of hash table entries |
| * @HashResultPointer: pointer to an array as hash table. |
| * |
| * This routine sets up the initial values to the array of hash table entries |
| * for the LC HBAs. |
| **/ |
| static void |
| lpfc_sha_init(uint32_t * HashResultPointer) |
| { |
| HashResultPointer[0] = 0x67452301; |
| HashResultPointer[1] = 0xEFCDAB89; |
| HashResultPointer[2] = 0x98BADCFE; |
| HashResultPointer[3] = 0x10325476; |
| HashResultPointer[4] = 0xC3D2E1F0; |
| } |
| |
| /** |
| * lpfc_sha_iterate - Iterate initial hash table with the working hash table |
| * @HashResultPointer: pointer to an initial/result hash table. |
| * @HashWorkingPointer: pointer to an working hash table. |
| * |
| * This routine iterates an initial hash table pointed by @HashResultPointer |
| * with the values from the working hash table pointeed by @HashWorkingPointer. |
| * The results are putting back to the initial hash table, returned through |
| * the @HashResultPointer as the result hash table. |
| **/ |
| static void |
| lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) |
| { |
| int t; |
| uint32_t TEMP; |
| uint32_t A, B, C, D, E; |
| t = 16; |
| do { |
| HashWorkingPointer[t] = |
| S(1, |
| HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - |
| 8] ^ |
| HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); |
| } while (++t <= 79); |
| t = 0; |
| A = HashResultPointer[0]; |
| B = HashResultPointer[1]; |
| C = HashResultPointer[2]; |
| D = HashResultPointer[3]; |
| E = HashResultPointer[4]; |
| |
| do { |
| if (t < 20) { |
| TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; |
| } else if (t < 40) { |
| TEMP = (B ^ C ^ D) + 0x6ED9EBA1; |
| } else if (t < 60) { |
| TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; |
| } else { |
| TEMP = (B ^ C ^ D) + 0xCA62C1D6; |
| } |
| TEMP += S(5, A) + E + HashWorkingPointer[t]; |
| E = D; |
| D = C; |
| C = S(30, B); |
| B = A; |
| A = TEMP; |
| } while (++t <= 79); |
| |
| HashResultPointer[0] += A; |
| HashResultPointer[1] += B; |
| HashResultPointer[2] += C; |
| HashResultPointer[3] += D; |
| HashResultPointer[4] += E; |
| |
| } |
| |
| /** |
| * lpfc_challenge_key - Create challenge key based on WWPN of the HBA |
| * @RandomChallenge: pointer to the entry of host challenge random number array. |
| * @HashWorking: pointer to the entry of the working hash array. |
| * |
| * This routine calculates the working hash array referred by @HashWorking |
| * from the challenge random numbers associated with the host, referred by |
| * @RandomChallenge. The result is put into the entry of the working hash |
| * array and returned by reference through @HashWorking. |
| **/ |
| static void |
| lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) |
| { |
| *HashWorking = (*RandomChallenge ^ *HashWorking); |
| } |
| |
| /** |
| * lpfc_hba_init - Perform special handling for LC HBA initialization |
| * @phba: pointer to lpfc hba data structure. |
| * @hbainit: pointer to an array of unsigned 32-bit integers. |
| * |
| * This routine performs the special handling for LC HBA initialization. |
| **/ |
| void |
| lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) |
| { |
| int t; |
| uint32_t *HashWorking; |
| uint32_t *pwwnn = (uint32_t *) phba->wwnn; |
| |
| HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); |
| if (!HashWorking) |
| return; |
| |
| HashWorking[0] = HashWorking[78] = *pwwnn++; |
| HashWorking[1] = HashWorking[79] = *pwwnn; |
| |
| for (t = 0; t < 7; t++) |
| lpfc_challenge_key(phba->RandomData + t, HashWorking + t); |
| |
| lpfc_sha_init(hbainit); |
| lpfc_sha_iterate(hbainit, HashWorking); |
| kfree(HashWorking); |
| } |
| |
| /** |
| * lpfc_cleanup - Performs vport cleanups before deleting a vport |
| * @vport: pointer to a virtual N_Port data structure. |
| * |
| * This routine performs the necessary cleanups before deleting the @vport. |
| * It invokes the discovery state machine to perform necessary state |
| * transitions and to release the ndlps associated with the @vport. Note, |
| * the physical port is treated as @vport 0. |
| **/ |
| void |
| lpfc_cleanup(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| int i = 0; |
| |
| if (phba->link_state > LPFC_LINK_DOWN) |
| lpfc_port_link_failure(vport); |
| |
| /* Clean up VMID resources */ |
| if (lpfc_is_vmid_enabled(phba)) |
| lpfc_vmid_vport_cleanup(vport); |
| |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| if (vport->port_type != LPFC_PHYSICAL_PORT && |
| ndlp->nlp_DID == Fabric_DID) { |
| /* Just free up ndlp with Fabric_DID for vports */ |
| lpfc_nlp_put(ndlp); |
| continue; |
| } |
| |
| if (ndlp->nlp_DID == Fabric_Cntl_DID && |
| ndlp->nlp_state == NLP_STE_UNUSED_NODE) { |
| lpfc_nlp_put(ndlp); |
| continue; |
| } |
| |
| /* Fabric Ports not in UNMAPPED state are cleaned up in the |
| * DEVICE_RM event. |
| */ |
| if (ndlp->nlp_type & NLP_FABRIC && |
| ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RECOVERY); |
| |
| if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD))) |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| NLP_EVT_DEVICE_RM); |
| } |
| |
| /* At this point, ALL ndlp's should be gone |
| * because of the previous NLP_EVT_DEVICE_RM. |
| * Lets wait for this to happen, if needed. |
| */ |
| while (!list_empty(&vport->fc_nodes)) { |
| if (i++ > 3000) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0233 Nodelist not empty\n"); |
| list_for_each_entry_safe(ndlp, next_ndlp, |
| &vport->fc_nodes, nlp_listp) { |
| lpfc_printf_vlog(ndlp->vport, KERN_ERR, |
| LOG_TRACE_EVENT, |
| "0282 did:x%x ndlp:x%px " |
| "refcnt:%d xflags x%x nflag x%x\n", |
| ndlp->nlp_DID, (void *)ndlp, |
| kref_read(&ndlp->kref), |
| ndlp->fc4_xpt_flags, |
| ndlp->nlp_flag); |
| } |
| break; |
| } |
| |
| /* Wait for any activity on ndlps to settle */ |
| msleep(10); |
| } |
| lpfc_cleanup_vports_rrqs(vport, NULL); |
| } |
| |
| /** |
| * lpfc_stop_vport_timers - Stop all the timers associated with a vport |
| * @vport: pointer to a virtual N_Port data structure. |
| * |
| * This routine stops all the timers associated with a @vport. This function |
| * is invoked before disabling or deleting a @vport. Note that the physical |
| * port is treated as @vport 0. |
| **/ |
| void |
| lpfc_stop_vport_timers(struct lpfc_vport *vport) |
| { |
| del_timer_sync(&vport->els_tmofunc); |
| del_timer_sync(&vport->delayed_disc_tmo); |
| lpfc_can_disctmo(vport); |
| return; |
| } |
| |
| /** |
| * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine stops the SLI4 FCF rediscover wait timer if it's on. The |
| * caller of this routine should already hold the host lock. |
| **/ |
| void |
| __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) |
| { |
| /* Clear pending FCF rediscovery wait flag */ |
| phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; |
| |
| /* Now, try to stop the timer */ |
| del_timer(&phba->fcf.redisc_wait); |
| } |
|