| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * |
| * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * |
| * Copyright (C) 2004-2016 Emulex. All rights reserved. * |
| * EMULEX and SLI are trademarks of Emulex. * |
| * www.broadcom.com * |
| * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
| * * |
| * This program is free software; you can redistribute it and/or * |
| * modify it under the terms of version 2 of the GNU General * |
| * Public License as published by the Free Software Foundation. * |
| * This program is distributed in the hope that it will be useful. * |
| * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| * more details, a copy of which can be found in the file COPYING * |
| * included with this package. * |
| *******************************************************************/ |
| |
| #include <linux/blkdev.h> |
| #include <linux/delay.h> |
| #include <linux/slab.h> |
| #include <linux/pci.h> |
| #include <linux/kthread.h> |
| #include <linux/interrupt.h> |
| #include <linux/lockdep.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_transport_fc.h> |
| #include <scsi/fc/fc_fs.h> |
| |
| #include <linux/nvme-fc-driver.h> |
| |
| #include "lpfc_hw4.h" |
| #include "lpfc_hw.h" |
| #include "lpfc_nl.h" |
| #include "lpfc_disc.h" |
| #include "lpfc_sli.h" |
| #include "lpfc_sli4.h" |
| #include "lpfc.h" |
| #include "lpfc_scsi.h" |
| #include "lpfc_nvme.h" |
| #include "lpfc_logmsg.h" |
| #include "lpfc_crtn.h" |
| #include "lpfc_vport.h" |
| #include "lpfc_debugfs.h" |
| |
| /* AlpaArray for assignment of scsid for scan-down and bind_method */ |
| static uint8_t lpfcAlpaArray[] = { |
| 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6, |
| 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, |
| 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, |
| 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, |
| 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97, |
| 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79, |
| 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, |
| 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, |
| 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A, |
| 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35, |
| 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, |
| 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, |
| 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01 |
| }; |
| |
| static void lpfc_disc_timeout_handler(struct lpfc_vport *); |
| static void lpfc_disc_flush_list(struct lpfc_vport *vport); |
| static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); |
| static int lpfc_fcf_inuse(struct lpfc_hba *); |
| |
| void |
| lpfc_terminate_rport_io(struct fc_rport *rport) |
| { |
| struct lpfc_rport_data *rdata; |
| struct lpfc_nodelist * ndlp; |
| struct lpfc_hba *phba; |
| |
| rdata = rport->dd_data; |
| ndlp = rdata->pnode; |
| |
| if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
| if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) |
| printk(KERN_ERR "Cannot find remote node" |
| " to terminate I/O Data x%x\n", |
| rport->port_id); |
| return; |
| } |
| |
| phba = ndlp->phba; |
| |
| lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, |
| "rport terminate: sid:x%x did:x%x flg:x%x", |
| ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); |
| |
| if (ndlp->nlp_sid != NLP_NO_SID) { |
| lpfc_sli_abort_iocb(ndlp->vport, |
| &phba->sli.sli3_ring[LPFC_FCP_RING], |
| ndlp->nlp_sid, 0, LPFC_CTX_TGT); |
| } |
| } |
| |
| /* |
| * This function will be called when dev_loss_tmo fire. |
| */ |
| void |
| lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) |
| { |
| struct lpfc_rport_data *rdata; |
| struct lpfc_nodelist * ndlp; |
| struct lpfc_vport *vport; |
| struct Scsi_Host *shost; |
| struct lpfc_hba *phba; |
| struct lpfc_work_evt *evtp; |
| int put_node; |
| int put_rport; |
| |
| rdata = rport->dd_data; |
| ndlp = rdata->pnode; |
| if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
| return; |
| |
| vport = ndlp->vport; |
| phba = vport->phba; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, |
| "rport devlosscb: sid:x%x did:x%x flg:x%x", |
| ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag); |
| |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, |
| "3181 dev_loss_callbk x%06x, rport %p flg x%x\n", |
| ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); |
| |
| /* Don't defer this if we are in the process of deleting the vport |
| * or unloading the driver. The unload will cleanup the node |
| * appropriately we just need to cleanup the ndlp rport info here. |
| */ |
| if (vport->load_flag & FC_UNLOADING) { |
| put_node = rdata->pnode != NULL; |
| put_rport = ndlp->rport != NULL; |
| rdata->pnode = NULL; |
| ndlp->rport = NULL; |
| if (put_node) |
| lpfc_nlp_put(ndlp); |
| if (put_rport) |
| put_device(&rport->dev); |
| return; |
| } |
| |
| if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) |
| return; |
| |
| if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, |
| "6789 rport name %llx != node port name %llx", |
| rport->port_name, |
| wwn_to_u64(ndlp->nlp_portname.u.wwn)); |
| |
| evtp = &ndlp->dev_loss_evt; |
| |
| if (!list_empty(&evtp->evt_listp)) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, |
| "6790 rport name %llx dev_loss_evt pending", |
| rport->port_name); |
| return; |
| } |
| |
| shost = lpfc_shost_from_vport(vport); |
| spin_lock_irq(shost->host_lock); |
| ndlp->nlp_flag |= NLP_IN_DEV_LOSS; |
| spin_unlock_irq(shost->host_lock); |
| |
| /* We need to hold the node by incrementing the reference |
| * count until this queued work is done |
| */ |
| evtp->evt_arg1 = lpfc_nlp_get(ndlp); |
| |
| spin_lock_irq(&phba->hbalock); |
| if (evtp->evt_arg1) { |
| evtp->evt = LPFC_EVT_DEV_LOSS; |
| list_add_tail(&evtp->evt_listp, &phba->work_list); |
| lpfc_worker_wake_up(phba); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler |
| * @ndlp: Pointer to remote node object. |
| * |
| * This function is called from the worker thread when devloss timeout timer |
| * expires. For SLI4 host, this routine shall return 1 when at lease one |
| * remote node, including this @ndlp, is still in use of FCF; otherwise, this |
| * routine shall return 0 when there is no remote node is still in use of FCF |
| * when devloss timeout happened to this @ndlp. |
| **/ |
| static int |
| lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) |
| { |
| struct lpfc_rport_data *rdata; |
| struct fc_rport *rport; |
| struct lpfc_vport *vport; |
| struct lpfc_hba *phba; |
| struct Scsi_Host *shost; |
| uint8_t *name; |
| int put_node; |
| int warn_on = 0; |
| int fcf_inuse = 0; |
| |
| rport = ndlp->rport; |
| vport = ndlp->vport; |
| shost = lpfc_shost_from_vport(vport); |
| |
| spin_lock_irq(shost->host_lock); |
| ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS; |
| spin_unlock_irq(shost->host_lock); |
| |
| if (!rport) |
| return fcf_inuse; |
| |
| name = (uint8_t *) &ndlp->nlp_portname; |
| phba = vport->phba; |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| fcf_inuse = lpfc_fcf_inuse(phba); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, |
| "rport devlosstmo:did:x%x type:x%x id:x%x", |
| ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id); |
| |
| lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, |
| "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n", |
| ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag); |
| |
| /* |
| * lpfc_nlp_remove if reached with dangling rport drops the |
| * reference. To make sure that does not happen clear rport |
| * pointer in ndlp before lpfc_nlp_put. |
| */ |
| rdata = rport->dd_data; |
| |
| /* Don't defer this if we are in the process of deleting the vport |
| * or unloading the driver. The unload will cleanup the node |
| * appropriately we just need to cleanup the ndlp rport info here. |
| */ |
| if (vport->load_flag & FC_UNLOADING) { |
| if (ndlp->nlp_sid != NLP_NO_SID) { |
| /* flush the target */ |
| lpfc_sli_abort_iocb(vport, |
| &phba->sli.sli3_ring[LPFC_FCP_RING], |
| ndlp->nlp_sid, 0, LPFC_CTX_TGT); |
| } |
| put_node = rdata->pnode != NULL; |
| rdata->pnode = NULL; |
| ndlp->rport = NULL; |
| if (put_node) |
| lpfc_nlp_put(ndlp); |
| put_device(&rport->dev); |
| |
| return fcf_inuse; |
| } |
| |
| if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0284 Devloss timeout Ignored on " |
| "WWPN %x:%x:%x:%x:%x:%x:%x:%x " |
| "NPort x%x\n", |
| *name, *(name+1), *(name+2), *(name+3), |
| *(name+4), *(name+5), *(name+6), *(name+7), |
| ndlp->nlp_DID); |
| return fcf_inuse; |
| } |
| |
| put_node = rdata->pnode != NULL; |
| rdata->pnode = NULL; |
| ndlp->rport = NULL; |
| if (put_node) |
| lpfc_nlp_put(ndlp); |
| put_device(&rport->dev); |
| |
| if (ndlp->nlp_type & NLP_FABRIC) |
| return fcf_inuse; |
| |
| if (ndlp->nlp_sid != NLP_NO_SID) { |
| warn_on = 1; |
| lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], |
| ndlp->nlp_sid, 0, LPFC_CTX_TGT); |
| } |
| |
| if (warn_on) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
| "0203 Devloss timeout on " |
| "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " |
| "NPort x%06x Data: x%x x%x x%x\n", |
| *name, *(name+1), *(name+2), *(name+3), |
| *(name+4), *(name+5), *(name+6), *(name+7), |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, ndlp->nlp_rpi); |
| } else { |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0204 Devloss timeout on " |
| "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x " |
| "NPort x%06x Data: x%x x%x x%x\n", |
| *name, *(name+1), *(name+2), *(name+3), |
| *(name+4), *(name+5), *(name+6), *(name+7), |
| ndlp->nlp_DID, ndlp->nlp_flag, |
| ndlp->nlp_state, ndlp->nlp_rpi); |
| } |
| |
| if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && |
| !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && |
| (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
| (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && |
| (ndlp->nlp_state != NLP_STE_PRLI_ISSUE)) |
| lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); |
| |
| return fcf_inuse; |
| } |
| |
| /** |
| * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler |
| * @phba: Pointer to hba context object. |
| * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler. |
| * @nlp_did: remote node identifer with devloss timeout. |
| * |
| * This function is called from the worker thread after invoking devloss |
| * timeout handler and releasing the reference count for the ndlp with |
| * which the devloss timeout was handled for SLI4 host. For the devloss |
| * timeout of the last remote node which had been in use of FCF, when this |
| * routine is invoked, it shall be guaranteed that none of the remote are |
| * in-use of FCF. When devloss timeout to the last remote using the FCF, |
| * if the FIP engine is neither in FCF table scan process nor roundrobin |
| * failover process, the in-use FCF shall be unregistered. If the FIP |
| * engine is in FCF discovery process, the devloss timeout state shall |
| * be set for either the FCF table scan process or roundrobin failover |
| * process to unregister the in-use FCF. |
| **/ |
| static void |
| lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse, |
| uint32_t nlp_did) |
| { |
| /* If devloss timeout happened to a remote node when FCF had no |
| * longer been in-use, do nothing. |
| */ |
| if (!fcf_inuse) |
| return; |
| |
| if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) { |
| spin_lock_irq(&phba->hbalock); |
| if (phba->fcf.fcf_flag & FCF_DISCOVERY) { |
| if (phba->hba_flag & HBA_DEVLOSS_TMO) { |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| phba->hba_flag |= HBA_DEVLOSS_TMO; |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2847 Last remote node (x%x) using " |
| "FCF devloss tmo\n", nlp_did); |
| } |
| if (phba->fcf.fcf_flag & FCF_REDISC_PROG) { |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2868 Devloss tmo to FCF rediscovery " |
| "in progress\n"); |
| return; |
| } |
| if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) { |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2869 Devloss tmo to idle FIP engine, " |
| "unreg in-use FCF and rescan.\n"); |
| /* Unregister in-use FCF and rescan */ |
| lpfc_unregister_fcf_rescan(phba); |
| return; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| if (phba->hba_flag & FCF_TS_INPROG) |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2870 FCF table scan in progress\n"); |
| if (phba->hba_flag & FCF_RR_INPROG) |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2871 FLOGI roundrobin FCF failover " |
| "in progress\n"); |
| } |
| lpfc_unregister_unused_fcf(phba); |
| } |
| |
| /** |
| * lpfc_alloc_fast_evt - Allocates data structure for posting event |
| * @phba: Pointer to hba context object. |
| * |
| * This function is called from the functions which need to post |
| * events from interrupt context. This function allocates data |
| * structure required for posting event. It also keeps track of |
| * number of events pending and prevent event storm when there are |
| * too many events. |
| **/ |
| struct lpfc_fast_path_event * |
| lpfc_alloc_fast_evt(struct lpfc_hba *phba) { |
| struct lpfc_fast_path_event *ret; |
| |
| /* If there are lot of fast event do not exhaust memory due to this */ |
| if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT) |
| return NULL; |
| |
| ret = kzalloc(sizeof(struct lpfc_fast_path_event), |
| GFP_ATOMIC); |
| if (ret) { |
| atomic_inc(&phba->fast_event_count); |
| INIT_LIST_HEAD(&ret->work_evt.evt_listp); |
| ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; |
| } |
| return ret; |
| } |
| |
| /** |
| * lpfc_free_fast_evt - Frees event data structure |
| * @phba: Pointer to hba context object. |
| * @evt: Event object which need to be freed. |
| * |
| * This function frees the data structure required for posting |
| * events. |
| **/ |
| void |
| lpfc_free_fast_evt(struct lpfc_hba *phba, |
| struct lpfc_fast_path_event *evt) { |
| |
| atomic_dec(&phba->fast_event_count); |
| kfree(evt); |
| } |
| |
| /** |
| * lpfc_send_fastpath_evt - Posts events generated from fast path |
| * @phba: Pointer to hba context object. |
| * @evtp: Event data structure. |
| * |
| * This function is called from worker thread, when the interrupt |
| * context need to post an event. This function posts the event |
| * to fc transport netlink interface. |
| **/ |
| static void |
| lpfc_send_fastpath_evt(struct lpfc_hba *phba, |
| struct lpfc_work_evt *evtp) |
| { |
| unsigned long evt_category, evt_sub_category; |
| struct lpfc_fast_path_event *fast_evt_data; |
| char *evt_data; |
| uint32_t evt_data_size; |
| struct Scsi_Host *shost; |
| |
| fast_evt_data = container_of(evtp, struct lpfc_fast_path_event, |
| work_evt); |
| |
| evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type; |
| evt_sub_category = (unsigned long) fast_evt_data->un. |
| fabric_evt.subcategory; |
| shost = lpfc_shost_from_vport(fast_evt_data->vport); |
| if (evt_category == FC_REG_FABRIC_EVENT) { |
| if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) { |
| evt_data = (char *) &fast_evt_data->un.read_check_error; |
| evt_data_size = sizeof(fast_evt_data->un. |
| read_check_error); |
| } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || |
| (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { |
| evt_data = (char *) &fast_evt_data->un.fabric_evt; |
| evt_data_size = sizeof(fast_evt_data->un.fabric_evt); |
| } else { |
| lpfc_free_fast_evt(phba, fast_evt_data); |
| return; |
| } |
| } else if (evt_category == FC_REG_SCSI_EVENT) { |
| switch (evt_sub_category) { |
| case LPFC_EVENT_QFULL: |
| case LPFC_EVENT_DEVBSY: |
| evt_data = (char *) &fast_evt_data->un.scsi_evt; |
| evt_data_size = sizeof(fast_evt_data->un.scsi_evt); |
| break; |
| case LPFC_EVENT_CHECK_COND: |
| evt_data = (char *) &fast_evt_data->un.check_cond_evt; |
| evt_data_size = sizeof(fast_evt_data->un. |
| check_cond_evt); |
| break; |
| case LPFC_EVENT_VARQUEDEPTH: |
| evt_data = (char *) &fast_evt_data->un.queue_depth_evt; |
| evt_data_size = sizeof(fast_evt_data->un. |
| queue_depth_evt); |
| break; |
| default: |
| lpfc_free_fast_evt(phba, fast_evt_data); |
| return; |
| } |
| } else { |
| lpfc_free_fast_evt(phba, fast_evt_data); |
| return; |
| } |
| |
| if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) |
| fc_host_post_vendor_event(shost, |
| fc_get_event_number(), |
| evt_data_size, |
| evt_data, |
| LPFC_NL_VENDOR_ID); |
| |
| lpfc_free_fast_evt(phba, fast_evt_data); |
| return; |
| } |
| |
| static void |
| lpfc_work_list_done(struct lpfc_hba *phba) |
| { |
| struct lpfc_work_evt *evtp = NULL; |
| struct lpfc_nodelist *ndlp; |
| int free_evt; |
| int fcf_inuse; |
| uint32_t nlp_did; |
| |
| spin_lock_irq(&phba->hbalock); |
| while (!list_empty(&phba->work_list)) { |
| list_remove_head((&phba->work_list), evtp, typeof(*evtp), |
| evt_listp); |
| spin_unlock_irq(&phba->hbalock); |
| free_evt = 1; |
| switch (evtp->evt) { |
| case LPFC_EVT_ELS_RETRY: |
| ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1); |
| lpfc_els_retry_delay_handler(ndlp); |
| free_evt = 0; /* evt is part of ndlp */ |
| /* decrement the node reference count held |
| * for this queued work |
| */ |
| lpfc_nlp_put(ndlp); |
| break; |
| case LPFC_EVT_DEV_LOSS: |
| ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); |
| fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp); |
| free_evt = 0; |
| /* decrement the node reference count held for |
| * this queued work |
| */ |
| nlp_did = ndlp->nlp_DID; |
| lpfc_nlp_put(ndlp); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_post_dev_loss_tmo_handler(phba, |
| fcf_inuse, |
| nlp_did); |
| break; |
| case LPFC_EVT_ONLINE: |
| if (phba->link_state < LPFC_LINK_DOWN) |
| *(int *) (evtp->evt_arg1) = lpfc_online(phba); |
| else |
| *(int *) (evtp->evt_arg1) = 0; |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_OFFLINE_PREP: |
| if (phba->link_state >= LPFC_LINK_DOWN) |
| lpfc_offline_prep(phba, LPFC_MBX_WAIT); |
| *(int *)(evtp->evt_arg1) = 0; |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_OFFLINE: |
| lpfc_offline(phba); |
| lpfc_sli_brdrestart(phba); |
| *(int *)(evtp->evt_arg1) = |
| lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY); |
| lpfc_unblock_mgmt_io(phba); |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_WARM_START: |
| lpfc_offline(phba); |
| lpfc_reset_barrier(phba); |
| lpfc_sli_brdreset(phba); |
| lpfc_hba_down_post(phba); |
| *(int *)(evtp->evt_arg1) = |
| lpfc_sli_brdready(phba, HS_MBRDY); |
| lpfc_unblock_mgmt_io(phba); |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_KILL: |
| lpfc_offline(phba); |
| *(int *)(evtp->evt_arg1) |
| = (phba->pport->stopped) |
| ? 0 : lpfc_sli_brdkill(phba); |
| lpfc_unblock_mgmt_io(phba); |
| complete((struct completion *)(evtp->evt_arg2)); |
| break; |
| case LPFC_EVT_FASTPATH_MGMT_EVT: |
| lpfc_send_fastpath_evt(phba, evtp); |
| free_evt = 0; |
| break; |
| case LPFC_EVT_RESET_HBA: |
| if (!(phba->pport->load_flag & FC_UNLOADING)) |
| lpfc_reset_hba(phba); |
| break; |
| } |
| if (free_evt) |
| kfree(evtp); |
| spin_lock_irq(&phba->hbalock); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| } |
| |
| static void |
| lpfc_work_done(struct lpfc_hba *phba) |
| { |
| struct lpfc_sli_ring *pring; |
| uint32_t ha_copy, status, control, work_port_events; |
| struct lpfc_vport **vports; |
| struct lpfc_vport *vport; |
| int i; |
| |
| spin_lock_irq(&phba->hbalock); |
| ha_copy = phba->work_ha; |
| phba->work_ha = 0; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* First, try to post the next mailbox command to SLI4 device */ |
| if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) |
| lpfc_sli4_post_async_mbox(phba); |
| |
| if (ha_copy & HA_ERATT) |
| /* Handle the error attention event */ |
| lpfc_handle_eratt(phba); |
| |
| if (ha_copy & HA_MBATT) |
| lpfc_sli_handle_mb_event(phba); |
| |
| if (ha_copy & HA_LATT) |
| lpfc_handle_latt(phba); |
| |
| /* Process SLI4 events */ |
| if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { |
| if (phba->hba_flag & HBA_RRQ_ACTIVE) |
| lpfc_handle_rrq_active(phba); |
| if (phba->hba_flag & FCP_XRI_ABORT_EVENT) |
| lpfc_sli4_fcp_xri_abort_event_proc(phba); |
| if (phba->hba_flag & NVME_XRI_ABORT_EVENT) |
| lpfc_sli4_nvme_xri_abort_event_proc(phba); |
| if (phba->hba_flag & ELS_XRI_ABORT_EVENT) |
| lpfc_sli4_els_xri_abort_event_proc(phba); |
| if (phba->hba_flag & ASYNC_EVENT) |
| lpfc_sli4_async_event_proc(phba); |
| if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); |
| } |
| if (phba->fcf.fcf_flag & FCF_REDISC_EVT) |
| lpfc_sli4_fcf_redisc_event_proc(phba); |
| } |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports; i++) { |
| /* |
| * We could have no vports in array if unloading, so if |
| * this happens then just use the pport |
| */ |
| if (vports[i] == NULL && i == 0) |
| vport = phba->pport; |
| else |
| vport = vports[i]; |
| if (vport == NULL) |
| break; |
| spin_lock_irq(&vport->work_port_lock); |
| work_port_events = vport->work_port_events; |
| vport->work_port_events &= ~work_port_events; |
| spin_unlock_irq(&vport->work_port_lock); |
| if (work_port_events & WORKER_DISC_TMO) |
| lpfc_disc_timeout_handler(vport); |
| if (work_port_events & WORKER_ELS_TMO) |
| lpfc_els_timeout_handler(vport); |
| if (work_port_events & WORKER_HB_TMO) |
| lpfc_hb_timeout_handler(phba); |
| if (work_port_events & WORKER_MBOX_TMO) |
| lpfc_mbox_timeout_handler(phba); |
| if (work_port_events & WORKER_FABRIC_BLOCK_TMO) |
| lpfc_unblock_fabric_iocbs(phba); |
| if (work_port_events & WORKER_RAMP_DOWN_QUEUE) |
| lpfc_ramp_down_queue_handler(phba); |
| if (work_port_events & WORKER_DELAYED_DISC_TMO) |
| lpfc_delayed_disc_timeout_handler(vport); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| pring = lpfc_phba_elsring(phba); |
| status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); |
| status >>= (4*LPFC_ELS_RING); |
| if (pring && (status & HA_RXMASK || |
| pring->flag & LPFC_DEFERRED_RING_EVENT || |
| phba->hba_flag & HBA_SP_QUEUE_EVT)) { |
| if (pring->flag & LPFC_STOP_IOCB_EVENT) { |
| pring->flag |= LPFC_DEFERRED_RING_EVENT; |
| /* Set the lpfc data pending flag */ |
| set_bit(LPFC_DATA_READY, &phba->data_flags); |
| } else { |
| if (phba->link_state >= LPFC_LINK_UP || |
| phba->link_flag & LS_MDS_LOOPBACK) { |
| pring->flag &= ~LPFC_DEFERRED_RING_EVENT; |
| lpfc_sli_handle_slow_ring_event(phba, pring, |
| (status & |
| HA_RXMASK)); |
| } |
| } |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| (!list_empty(&pring->txq))) |
| lpfc_drain_txq(phba); |
| /* |
| * Turn on Ring interrupts |
| */ |
| if (phba->sli_rev <= LPFC_SLI_REV3) { |
| spin_lock_irq(&phba->hbalock); |
| control = readl(phba->HCregaddr); |
| if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) { |
| lpfc_debugfs_slow_ring_trc(phba, |
| "WRK Enable ring: cntl:x%x hacopy:x%x", |
| control, ha_copy, 0); |
| |
| control |= (HC_R0INT_ENA << LPFC_ELS_RING); |
| writel(control, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| } else { |
| lpfc_debugfs_slow_ring_trc(phba, |
| "WRK Ring ok: cntl:x%x hacopy:x%x", |
| control, ha_copy, 0); |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| } |
| lpfc_work_list_done(phba); |
| } |
| |
| int |
| lpfc_do_work(void *p) |
| { |
| struct lpfc_hba *phba = p; |
| int rc; |
| |
| set_user_nice(current, MIN_NICE); |
| current->flags |= PF_NOFREEZE; |
| phba->data_flags = 0; |
| |
| while (!kthread_should_stop()) { |
| /* wait and check worker queue activities */ |
| rc = wait_event_interruptible(phba->work_waitq, |
| (test_and_clear_bit(LPFC_DATA_READY, |
| &phba->data_flags) |
| || kthread_should_stop())); |
| /* Signal wakeup shall terminate the worker thread */ |
| if (rc) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_ELS, |
| "0433 Wakeup on signal: rc=x%x\n", rc); |
| break; |
| } |
| |
| /* Attend pending lpfc data processing */ |
| lpfc_work_done(phba); |
| } |
| phba->worker_thread = NULL; |
| lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
| "0432 Worker thread stopped.\n"); |
| return 0; |
| } |
| |
| /* |
| * This is only called to handle FC worker events. Since this a rare |
| * occurrence, we allocate a struct lpfc_work_evt structure here instead of |
| * embedding it in the IOCB. |
| */ |
| int |
| lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, |
| uint32_t evt) |
| { |
| struct lpfc_work_evt *evtp; |
| unsigned long flags; |
| |
| /* |
| * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will |
| * be queued to worker thread for processing |
| */ |
| evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC); |
| if (!evtp) |
| return 0; |
| |
| evtp->evt_arg1 = arg1; |
| evtp->evt_arg2 = arg2; |
| evtp->evt = evt; |
| |
| spin_lock_irqsave(&phba->hbalock, flags); |
| list_add_tail(&evtp->evt_listp, &phba->work_list); |
| spin_unlock_irqrestore(&phba->hbalock, flags); |
| |
| lpfc_worker_wake_up(phba); |
| |
| return 1; |
| } |
| |
| void |
| lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| if (!NLP_CHK_NODE_ACT(ndlp)) |
| continue; |
| if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| continue; |
| if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) || |
| ((vport->port_type == LPFC_NPIV_PORT) && |
| (ndlp->nlp_DID == NameServer_DID))) |
| lpfc_unreg_rpi(vport, ndlp); |
| |
| /* Leave Fabric nodes alone on link down */ |
| if ((phba->sli_rev < LPFC_SLI_REV4) && |
| (!remove && ndlp->nlp_type & NLP_FABRIC)) |
| continue; |
| lpfc_disc_state_machine(vport, ndlp, NULL, |
| remove |
| ? NLP_EVT_DEVICE_RM |
| : NLP_EVT_DEVICE_RECOVERY); |
| } |
| if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) { |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_sli4_unreg_all_rpis(vport); |
| lpfc_mbx_unreg_vpi(vport); |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
| spin_unlock_irq(shost->host_lock); |
| } |
| } |
| |
| void |
| lpfc_port_link_failure(struct lpfc_vport *vport) |
| { |
| lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
| |
| /* Cleanup any outstanding received buffers */ |
| lpfc_cleanup_rcv_buffers(vport); |
| |
| /* Cleanup any outstanding RSCN activity */ |
| lpfc_els_flush_rscn(vport); |
| |
| /* Cleanup any outstanding ELS commands */ |
| lpfc_els_flush_cmd(vport); |
| |
| lpfc_cleanup_rpis(vport, 0); |
| |
| /* Turn off discovery timer if its running */ |
| lpfc_can_disctmo(vport); |
| } |
| |
| void |
| lpfc_linkdown_port(struct lpfc_vport *vport) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) |
| fc_host_post_event(shost, fc_get_event_number(), |
| FCH_EVT_LINKDOWN, 0); |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Link Down: state:x%x rtry:x%x flg:x%x", |
| vport->port_state, vport->fc_ns_retry, vport->fc_flag); |
| |
| lpfc_port_link_failure(vport); |
| |
| /* Stop delayed Nport discovery */ |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_DISC_DELAYED; |
| spin_unlock_irq(shost->host_lock); |
| del_timer_sync(&vport->delayed_disc_tmo); |
| } |
| |
| int |
| lpfc_linkdown(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_vport **vports; |
| LPFC_MBOXQ_t *mb; |
| int i; |
| |
| if (phba->link_state == LPFC_LINK_DOWN) |
| return 0; |
| |
| /* Block all SCSI stack I/Os */ |
| lpfc_scsi_dev_block(phba); |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); |
| spin_unlock_irq(&phba->hbalock); |
| if (phba->link_state > LPFC_LINK_DOWN) { |
| phba->link_state = LPFC_LINK_DOWN; |
| spin_lock_irq(shost->host_lock); |
| phba->pport->fc_flag &= ~FC_LBIT; |
| spin_unlock_irq(shost->host_lock); |
| } |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) { |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| /* Issue a LINK DOWN event to all nodes */ |
| lpfc_linkdown_port(vports[i]); |
| |
| vports[i]->fc_myDID = 0; |
| |
| if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || |
| (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { |
| if (phba->nvmet_support) |
| lpfc_nvmet_update_targetport(phba); |
| else |
| lpfc_nvme_update_localport(vports[i]); |
| } |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| /* Clean up any firmware default rpi's */ |
| mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (mb) { |
| lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); |
| mb->vport = vport; |
| mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) |
| == MBX_NOT_FINISHED) { |
| mempool_free(mb, phba->mbox_mem_pool); |
| } |
| } |
| |
| /* Setup myDID for link up if we are in pt2pt mode */ |
| if (phba->pport->fc_flag & FC_PT2PT) { |
| mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (mb) { |
| lpfc_config_link(phba, mb); |
| mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
| mb->vport = vport; |
| if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT) |
| == MBX_NOT_FINISHED) { |
| mempool_free(mb, phba->mbox_mem_pool); |
| } |
| } |
| spin_lock_irq(shost->host_lock); |
| phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI); |
| spin_unlock_irq(shost->host_lock); |
| } |
| return 0; |
| } |
| |
| static void |
| lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport) |
| { |
| struct lpfc_nodelist *ndlp; |
| |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| if (!NLP_CHK_NODE_ACT(ndlp)) |
| continue; |
| if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| continue; |
| if (ndlp->nlp_type & NLP_FABRIC) { |
| /* On Linkup its safe to clean up the ndlp |
| * from Fabric connections. |
| */ |
| if (ndlp->nlp_DID != Fabric_DID) |
| lpfc_unreg_rpi(vport, ndlp); |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
| } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { |
| /* Fail outstanding IO now since device is |
| * marked for PLOGI. |
| */ |
| lpfc_unreg_rpi(vport, ndlp); |
| } |
| } |
| } |
| |
| static void |
| lpfc_linkup_port(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_hba *phba = vport->phba; |
| |
| if ((vport->load_flag & FC_UNLOADING) != 0) |
| return; |
| |
| lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
| "Link Up: top:x%x speed:x%x flg:x%x", |
| phba->fc_topology, phba->fc_linkspeed, phba->link_flag); |
| |
| /* If NPIV is not enabled, only bring the physical port up */ |
| if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
| (vport != phba->pport)) |
| return; |
| |
| if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME) |
| fc_host_post_event(shost, fc_get_event_number(), |
| FCH_EVT_LINKUP, 0); |
| |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY | |
| FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY); |
| vport->fc_flag |= FC_NDISC_ACTIVE; |
| vport->fc_ns_retry = 0; |
| spin_unlock_irq(shost->host_lock); |
| |
| if (vport->fc_flag & FC_LBIT) |
| lpfc_linkup_cleanup_nodes(vport); |
| |
| } |
| |
| static int |
| lpfc_linkup(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| int i; |
| |
| phba->link_state = LPFC_LINK_UP; |
| |
| /* Unblock fabric iocbs if they are blocked */ |
| clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); |
| del_timer_sync(&phba->fabric_block_timer); |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) |
| lpfc_linkup_port(vports[i]); |
| lpfc_destroy_vport_work_array(phba, vports); |
| |
| return 0; |
| } |
| |
| /* |
| * This routine handles processing a CLEAR_LA mailbox |
| * command upon completion. It is setup in the LPFC_MBOXQ |
| * as the completion routine when the command is |
| * handed off to the SLI layer. SLI3 only. |
| */ |
| static void |
| lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_sli *psli = &phba->sli; |
| MAILBOX_t *mb = &pmb->u.mb; |
| uint32_t control; |
| |
| /* Since we don't do discovery right now, turn these off here */ |
| psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT; |
| psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT; |
| |
| /* Check for error */ |
| if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) { |
| /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
| "0320 CLEAR_LA mbxStatus error x%x hba " |
| "state x%x\n", |
| mb->mbxStatus, vport->port_state); |
| phba->link_state = LPFC_HBA_ERROR; |
| goto out; |
| } |
| |
| if (vport->port_type == LPFC_PHYSICAL_PORT) |
| phba->link_state = LPFC_HBA_READY; |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag |= LPFC_PROCESS_LA; |
| control = readl(phba->HCregaddr); |
| control |= HC_LAINT_ENA; |
| writel(control, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| |
| out: |
| /* Device Discovery completes */ |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
| "0225 Device Discovery completes\n"); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_ABORT_DISCOVERY; |
| spin_unlock_irq(shost->host_lock); |
| |
| lpfc_can_disctmo(vport); |
| |
| /* turn on Link Attention interrupts */ |
| |
| spin_lock_irq(&phba->hbalock); |
| psli->sli_flag |= LPFC_PROCESS_LA; |
| control = readl(phba->HCregaddr); |
| control |= HC_LAINT_ENA; |
| writel(control, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| spin_unlock_irq(&phba->hbalock); |
| |
| return; |
| } |
| |
| |
| void |
| lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| struct lpfc_vport *vport = pmb->vport; |
| uint8_t bbscn = 0; |
| |
| if (pmb->u.mb.mbxStatus) |
| goto out; |
| |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| /* don't perform discovery for SLI4 loopback diagnostic test */ |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| !(phba->hba_flag & HBA_FCOE_MODE) && |
| (phba->link_flag & LS_LOOPBACK_MODE)) |
| return; |
| |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP && |
| vport->fc_flag & FC_PUBLIC_LOOP && |
| !(vport->fc_flag & FC_LBIT)) { |
| /* Need to wait for FAN - use discovery timer |
| * for timeout. port_state is identically |
| * LPFC_LOCAL_CFG_LINK while waiting for FAN |
| */ |
| lpfc_set_disctmo(vport); |
| return; |
| } |
| |
| /* Start discovery by sending a FLOGI. port_state is identically |
| * LPFC_FLOGI while waiting for FLOGI cmpl |
| */ |
| if (vport->port_state != LPFC_FLOGI) { |
| if (phba->bbcredit_support && phba->cfg_enable_bbcr) { |
| bbscn = bf_get(lpfc_bbscn_def, |
| &phba->sli4_hba.bbscn_params); |
| vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; |
| vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4); |
| } |
| lpfc_initial_flogi(vport); |
| } else if (vport->fc_flag & FC_PT2PT) { |
| lpfc_disc_start(vport); |
| } |
| return; |
| |
| out: |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
| "0306 CONFIG_LINK mbxStatus error x%x " |
| "HBA state x%x\n", |
| pmb->u.mb.mbxStatus, vport->port_state); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| |
| lpfc_linkdown(phba); |
| |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
| "0200 CONFIG_LINK bad hba state x%x\n", |
| vport->port_state); |
| |
| lpfc_issue_clear_la(phba, vport); |
| return; |
| } |
| |
| /** |
| * lpfc_sli4_clear_fcf_rr_bmask |
| * @phba pointer to the struct lpfc_hba for this port. |
| * This fucnction resets the round robin bit mask and clears the |
| * fcf priority list. The list deletions are done while holding the |
| * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared |
| * from the lpfc_fcf_pri record. |
| **/ |
| void |
| lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba) |
| { |
| struct lpfc_fcf_pri *fcf_pri; |
| struct lpfc_fcf_pri *next_fcf_pri; |
| memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask)); |
| spin_lock_irq(&phba->hbalock); |
| list_for_each_entry_safe(fcf_pri, next_fcf_pri, |
| &phba->fcf.fcf_pri_list, list) { |
| list_del_init(&fcf_pri->list); |
| fcf_pri->fcf_rec.flag = 0; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| static void |
| lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_vport *vport = mboxq->vport; |
| |
| if (mboxq->u.mb.mbxStatus) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
| "2017 REG_FCFI mbxStatus error x%x " |
| "HBA state x%x\n", |
| mboxq->u.mb.mbxStatus, vport->port_state); |
| goto fail_out; |
| } |
| |
| /* Start FCoE discovery by sending a FLOGI. */ |
| phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi); |
| /* Set the FCFI registered flag */ |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= FCF_REGISTERED; |
| spin_unlock_irq(&phba->hbalock); |
| |
| /* If there is a pending FCoE event, restart FCF table scan. */ |
| if ((!(phba->hba_flag & FCF_RR_INPROG)) && |
| lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF)) |
| goto fail_out; |
| |
| /* Mark successful completion of FCF table scan */ |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| if (vport->port_state != LPFC_FLOGI) { |
| phba->hba_flag |= FCF_RR_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_issue_init_vfi(vport); |
| goto out; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| goto out; |
| |
| fail_out: |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~FCF_RR_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| out: |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| } |
| |
| /** |
| * lpfc_fab_name_match - Check if the fcf fabric name match. |
| * @fab_name: pointer to fabric name. |
| * @new_fcf_record: pointer to fcf record. |
| * |
| * This routine compare the fcf record's fabric name with provided |
| * fabric name. If the fabric name are identical this function |
| * returns 1 else return 0. |
| **/ |
| static uint32_t |
| lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record) |
| { |
| if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) |
| return 0; |
| if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) |
| return 0; |
| if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) |
| return 0; |
| if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) |
| return 0; |
| if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) |
| return 0; |
| if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) |
| return 0; |
| if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) |
| return 0; |
| if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)) |
| return 0; |
| return 1; |
| } |
| |
| /** |
| * lpfc_sw_name_match - Check if the fcf switch name match. |
| * @fab_name: pointer to fabric name. |
| * @new_fcf_record: pointer to fcf record. |
| * |
| * This routine compare the fcf record's switch name with provided |
| * switch name. If the switch name are identical this function |
| * returns 1 else return 0. |
| **/ |
| static uint32_t |
| lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record) |
| { |
| if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) |
| return 0; |
| if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) |
| return 0; |
| if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) |
| return 0; |
| if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) |
| return 0; |
| if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) |
| return 0; |
| if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) |
| return 0; |
| if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) |
| return 0; |
| if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)) |
| return 0; |
| return 1; |
| } |
| |
| /** |
| * lpfc_mac_addr_match - Check if the fcf mac address match. |
| * @mac_addr: pointer to mac address. |
| * @new_fcf_record: pointer to fcf record. |
| * |
| * This routine compare the fcf record's mac address with HBA's |
| * FCF mac address. If the mac addresses are identical this function |
| * returns 1 else return 0. |
| **/ |
| static uint32_t |
| lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record) |
| { |
| if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) |
| return 0; |
| if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) |
| return 0; |
| if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) |
| return 0; |
| if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) |
| return 0; |
| if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) |
| return 0; |
| if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record)) |
| return 0; |
| return 1; |
| } |
| |
| static bool |
| lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id) |
| { |
| return (curr_vlan_id == new_vlan_id); |
| } |
| |
| /** |
| * lpfc_update_fcf_record - Update driver fcf record |
| * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record. |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_index: Index for the lpfc_fcf_record. |
| * @new_fcf_record: pointer to hba fcf record. |
| * |
| * This routine updates the driver FCF priority record from the new HBA FCF |
| * record. This routine is called with the host lock held. |
| **/ |
| static void |
| __lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index, |
| struct fcf_record *new_fcf_record |
| ) |
| { |
| struct lpfc_fcf_pri *fcf_pri; |
| |
| lockdep_assert_held(&phba->hbalock); |
| |
| fcf_pri = &phba->fcf.fcf_pri[fcf_index]; |
| fcf_pri->fcf_rec.fcf_index = fcf_index; |
| /* FCF record priority */ |
| fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; |
| |
| } |
| |
| /** |
| * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba. |
| * @fcf: pointer to driver fcf record. |
| * @new_fcf_record: pointer to fcf record. |
| * |
| * This routine copies the FCF information from the FCF |
| * record to lpfc_hba data structure. |
| **/ |
| static void |
| lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec, |
| struct fcf_record *new_fcf_record) |
| { |
| /* Fabric name */ |
| fcf_rec->fabric_name[0] = |
| bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record); |
| fcf_rec->fabric_name[1] = |
| bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record); |
| fcf_rec->fabric_name[2] = |
| bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record); |
| fcf_rec->fabric_name[3] = |
| bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record); |
| fcf_rec->fabric_name[4] = |
| bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record); |
| fcf_rec->fabric_name[5] = |
| bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record); |
| fcf_rec->fabric_name[6] = |
| bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record); |
| fcf_rec->fabric_name[7] = |
| bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record); |
| /* Mac address */ |
| fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record); |
| fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record); |
| fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record); |
| fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record); |
| fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record); |
| fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record); |
| /* FCF record index */ |
| fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); |
| /* FCF record priority */ |
| fcf_rec->priority = new_fcf_record->fip_priority; |
| /* Switch name */ |
| fcf_rec->switch_name[0] = |
| bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record); |
| fcf_rec->switch_name[1] = |
| bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record); |
| fcf_rec->switch_name[2] = |
| bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record); |
| fcf_rec->switch_name[3] = |
| bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record); |
| fcf_rec->switch_name[4] = |
| bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record); |
| fcf_rec->switch_name[5] = |
| bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record); |
| fcf_rec->switch_name[6] = |
| bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record); |
| fcf_rec->switch_name[7] = |
| bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record); |
| } |
| |
| /** |
| * lpfc_update_fcf_record - Update driver fcf record |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_rec: pointer to driver fcf record. |
| * @new_fcf_record: pointer to hba fcf record. |
| * @addr_mode: address mode to be set to the driver fcf record. |
| * @vlan_id: vlan tag to be set to the driver fcf record. |
| * @flag: flag bits to be set to the driver fcf record. |
| * |
| * This routine updates the driver FCF record from the new HBA FCF record |
| * together with the address mode, vlan_id, and other informations. This |
| * routine is called with the host lock held. |
| **/ |
| static void |
| __lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec, |
| struct fcf_record *new_fcf_record, uint32_t addr_mode, |
| uint16_t vlan_id, uint32_t flag) |
| { |
| lockdep_assert_held(&phba->hbalock); |
| |
| /* Copy the fields from the HBA's FCF record */ |
| lpfc_copy_fcf_record(fcf_rec, new_fcf_record); |
| /* Update other fields of driver FCF record */ |
| fcf_rec->addr_mode = addr_mode; |
| fcf_rec->vlan_id = vlan_id; |
| fcf_rec->flag |= (flag | RECORD_VALID); |
| __lpfc_update_fcf_record_pri(phba, |
| bf_get(lpfc_fcf_record_fcf_index, new_fcf_record), |
| new_fcf_record); |
| } |
| |
| /** |
| * lpfc_register_fcf - Register the FCF with hba. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This routine issues a register fcfi mailbox command to register |
| * the fcf with HBA. |
| **/ |
| static void |
| lpfc_register_fcf(struct lpfc_hba *phba) |
| { |
| LPFC_MBOXQ_t *fcf_mbxq; |
| int rc; |
| |
| spin_lock_irq(&phba->hbalock); |
| /* If the FCF is not available do nothing. */ |
| if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) { |
| phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| |
| /* The FCF is already registered, start discovery */ |
| if (phba->fcf.fcf_flag & FCF_REGISTERED) { |
| phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE); |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| if (phba->pport->port_state != LPFC_FLOGI && |
| phba->pport->fc_flag & FC_FABRIC) { |
| phba->hba_flag |= FCF_RR_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_initial_flogi(phba->pport); |
| return; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| |
| fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!fcf_mbxq) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| |
| lpfc_reg_fcfi(phba, fcf_mbxq); |
| fcf_mbxq->vport = phba->pport; |
| fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi; |
| rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); |
| spin_unlock_irq(&phba->hbalock); |
| mempool_free(fcf_mbxq, phba->mbox_mem_pool); |
| } |
| |
| return; |
| } |
| |
| /** |
| * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery. |
| * @phba: pointer to lpfc hba data structure. |
| * @new_fcf_record: pointer to fcf record. |
| * @boot_flag: Indicates if this record used by boot bios. |
| * @addr_mode: The address mode to be used by this FCF |
| * @vlan_id: The vlan id to be used as vlan tagging by this FCF. |
| * |
| * This routine compare the fcf record with connect list obtained from the |
| * config region to decide if this FCF can be used for SAN discovery. It returns |
| * 1 if this record can be used for SAN discovery else return zero. If this FCF |
| * record can be used for SAN discovery, the boot_flag will indicate if this FCF |
| * is used by boot bios and addr_mode will indicate the addressing mode to be |
| * used for this FCF when the function returns. |
| * If the FCF record need to be used with a particular vlan id, the vlan is |
| * set in the vlan_id on return of the function. If not VLAN tagging need to |
| * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID; |
| **/ |
| static int |
| lpfc_match_fcf_conn_list(struct lpfc_hba *phba, |
| struct fcf_record *new_fcf_record, |
| uint32_t *boot_flag, uint32_t *addr_mode, |
| uint16_t *vlan_id) |
| { |
| struct lpfc_fcf_conn_entry *conn_entry; |
| int i, j, fcf_vlan_id = 0; |
| |
| /* Find the lowest VLAN id in the FCF record */ |
| for (i = 0; i < 512; i++) { |
| if (new_fcf_record->vlan_bitmap[i]) { |
| fcf_vlan_id = i * 8; |
| j = 0; |
| while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) { |
| j++; |
| fcf_vlan_id++; |
| } |
| break; |
| } |
| } |
| |
| /* FCF not valid/available or solicitation in progress */ |
| if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) || |
| !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) || |
| bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record)) |
| return 0; |
| |
| if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { |
| *boot_flag = 0; |
| *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record); |
| if (phba->valid_vlan) |
| *vlan_id = phba->vlan_id; |
| else |
| *vlan_id = LPFC_FCOE_NULL_VID; |
| return 1; |
| } |
| |
| /* |
| * If there are no FCF connection table entry, driver connect to all |
| * FCFs. |
| */ |
| if (list_empty(&phba->fcf_conn_rec_list)) { |
| *boot_flag = 0; |
| *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record); |
| |
| /* |
| * When there are no FCF connect entries, use driver's default |
| * addressing mode - FPMA. |
| */ |
| if (*addr_mode & LPFC_FCF_FPMA) |
| *addr_mode = LPFC_FCF_FPMA; |
| |
| /* If FCF record report a vlan id use that vlan id */ |
| if (fcf_vlan_id) |
| *vlan_id = fcf_vlan_id; |
| else |
| *vlan_id = LPFC_FCOE_NULL_VID; |
| return 1; |
| } |
| |
| list_for_each_entry(conn_entry, |
| &phba->fcf_conn_rec_list, list) { |
| if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID)) |
| continue; |
| |
| if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) && |
| !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name, |
| new_fcf_record)) |
| continue; |
| if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) && |
| !lpfc_sw_name_match(conn_entry->conn_rec.switch_name, |
| new_fcf_record)) |
| continue; |
| if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) { |
| /* |
| * If the vlan bit map does not have the bit set for the |
| * vlan id to be used, then it is not a match. |
| */ |
| if (!(new_fcf_record->vlan_bitmap |
| [conn_entry->conn_rec.vlan_tag / 8] & |
| (1 << (conn_entry->conn_rec.vlan_tag % 8)))) |
| continue; |
| } |
| |
| /* |
| * If connection record does not support any addressing mode, |
| * skip the FCF record. |
| */ |
| if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record) |
| & (LPFC_FCF_FPMA | LPFC_FCF_SPMA))) |
| continue; |
| |
| /* |
| * Check if the connection record specifies a required |
| * addressing mode. |
| */ |
| if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && |
| !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) { |
| |
| /* |
| * If SPMA required but FCF not support this continue. |
| */ |
| if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && |
| !(bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record) & LPFC_FCF_SPMA)) |
| continue; |
| |
| /* |
| * If FPMA required but FCF not support this continue. |
| */ |
| if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && |
| !(bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record) & LPFC_FCF_FPMA)) |
| continue; |
| } |
| |
| /* |
| * This fcf record matches filtering criteria. |
| */ |
| if (conn_entry->conn_rec.flags & FCFCNCT_BOOT) |
| *boot_flag = 1; |
| else |
| *boot_flag = 0; |
| |
| /* |
| * If user did not specify any addressing mode, or if the |
| * preferred addressing mode specified by user is not supported |
| * by FCF, allow fabric to pick the addressing mode. |
| */ |
| *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov, |
| new_fcf_record); |
| /* |
| * If the user specified a required address mode, assign that |
| * address mode |
| */ |
| if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && |
| (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED))) |
| *addr_mode = (conn_entry->conn_rec.flags & |
| FCFCNCT_AM_SPMA) ? |
| LPFC_FCF_SPMA : LPFC_FCF_FPMA; |
| /* |
| * If the user specified a preferred address mode, use the |
| * addr mode only if FCF support the addr_mode. |
| */ |
| else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && |
| (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && |
| (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && |
| (*addr_mode & LPFC_FCF_SPMA)) |
| *addr_mode = LPFC_FCF_SPMA; |
| else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) && |
| (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) && |
| !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) && |
| (*addr_mode & LPFC_FCF_FPMA)) |
| *addr_mode = LPFC_FCF_FPMA; |
| |
| /* If matching connect list has a vlan id, use it */ |
| if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) |
| *vlan_id = conn_entry->conn_rec.vlan_tag; |
| /* |
| * If no vlan id is specified in connect list, use the vlan id |
| * in the FCF record |
| */ |
| else if (fcf_vlan_id) |
| *vlan_id = fcf_vlan_id; |
| else |
| *vlan_id = LPFC_FCOE_NULL_VID; |
| |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event. |
| * @phba: pointer to lpfc hba data structure. |
| * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned. |
| * |
| * This function check if there is any fcoe event pending while driver |
| * scan FCF entries. If there is any pending event, it will restart the |
| * FCF saning and return 1 else return 0. |
| */ |
| int |
| lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf) |
| { |
| /* |
| * If the Link is up and no FCoE events while in the |
| * FCF discovery, no need to restart FCF discovery. |
| */ |
| if ((phba->link_state >= LPFC_LINK_UP) && |
| (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan)) |
| return 0; |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2768 Pending link or FCF event during current " |
| "handling of the previous event: link_state:x%x, " |
| "evt_tag_at_scan:x%x, evt_tag_current:x%x\n", |
| phba->link_state, phba->fcoe_eventtag_at_fcf_scan, |
| phba->fcoe_eventtag); |
| |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_AVAILABLE; |
| spin_unlock_irq(&phba->hbalock); |
| |
| if (phba->link_state >= LPFC_LINK_UP) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, |
| "2780 Restart FCF table scan due to " |
| "pending FCF event:evt_tag_at_scan:x%x, " |
| "evt_tag_current:x%x\n", |
| phba->fcoe_eventtag_at_fcf_scan, |
| phba->fcoe_eventtag); |
| lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); |
| } else { |
| /* |
| * Do not continue FCF discovery and clear FCF_TS_INPROG |
| * flag |
| */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, |
| "2833 Stop FCF discovery process due to link " |
| "state change (x%x)\n", phba->link_state); |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG); |
| phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY); |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /* Unregister the currently registered FCF if required */ |
| if (unreg_fcf) { |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_REGISTERED; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_unregister_fcf(phba); |
| } |
| return 1; |
| } |
| |
| /** |
| * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_cnt: number of eligible fcf record seen so far. |
| * |
| * This function makes an running random selection decision on FCF record to |
| * use through a sequence of @fcf_cnt eligible FCF records with equal |
| * probability. To perform integer manunipulation of random numbers with |
| * size unit32_t, the lower 16 bits of the 32-bit random number returned |
| * from prandom_u32() are taken as the random random number generated. |
| * |
| * Returns true when outcome is for the newly read FCF record should be |
| * chosen; otherwise, return false when outcome is for keeping the previously |
| * chosen FCF record. |
| **/ |
| static bool |
| lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt) |
| { |
| uint32_t rand_num; |
| |
| /* Get 16-bit uniform random number */ |
| rand_num = 0xFFFF & prandom_u32(); |
| |
| /* Decision with probability 1/fcf_cnt */ |
| if ((fcf_cnt * rand_num) < 0xFFFF) |
| return true; |
| else |
| return false; |
| } |
| |
| /** |
| * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox object. |
| * @next_fcf_index: pointer to holder of next fcf index. |
| * |
| * This routine parses the non-embedded fcf mailbox command by performing the |
| * necessarily error checking, non-embedded read FCF record mailbox command |
| * SGE parsing, and endianness swapping. |
| * |
| * Returns the pointer to the new FCF record in the non-embedded mailbox |
| * command DMA memory if successfully, other NULL. |
| */ |
| static struct fcf_record * |
| lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, |
| uint16_t *next_fcf_index) |
| { |
| void *virt_addr; |
| struct lpfc_mbx_sge sge; |
| struct lpfc_mbx_read_fcf_tbl *read_fcf; |
| uint32_t shdr_status, shdr_add_status, if_type; |
| union lpfc_sli4_cfg_shdr *shdr; |
| struct fcf_record *new_fcf_record; |
| |
| /* Get the first SGE entry from the non-embedded DMA memory. This |
| * routine only uses a single SGE. |
| */ |
| lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); |
| if (unlikely(!mboxq->sge_array)) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
| "2524 Failed to get the non-embedded SGE " |
| "virtual address\n"); |
| return NULL; |
| } |
| virt_addr = mboxq->sge_array->addr[0]; |
| |
| shdr = (union lpfc_sli4_cfg_shdr *)virt_addr; |
| lpfc_sli_pcimem_bcopy(shdr, shdr, |
| sizeof(union lpfc_sli4_cfg_shdr)); |
| shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
| if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
| shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); |
| if (shdr_status || shdr_add_status) { |
| if (shdr_status == STATUS_FCF_TABLE_EMPTY || |
| if_type == LPFC_SLI_INTF_IF_TYPE_2) |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP, |
| "2726 READ_FCF_RECORD Indicates empty " |
| "FCF table.\n"); |
| else |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP, |
| "2521 READ_FCF_RECORD mailbox failed " |
| "with status x%x add_status x%x, " |
| "mbx\n", shdr_status, shdr_add_status); |
| return NULL; |
| } |
| |
| /* Interpreting the returned information of the FCF record */ |
| read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; |
| lpfc_sli_pcimem_bcopy(read_fcf, read_fcf, |
| sizeof(struct lpfc_mbx_read_fcf_tbl)); |
| *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf); |
| new_fcf_record = (struct fcf_record *)(virt_addr + |
| sizeof(struct lpfc_mbx_read_fcf_tbl)); |
| lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record, |
| offsetof(struct fcf_record, vlan_bitmap)); |
| new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137); |
| new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138); |
| |
| return new_fcf_record; |
| } |
| |
| /** |
| * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_record: pointer to the fcf record. |
| * @vlan_id: the lowest vlan identifier associated to this fcf record. |
| * @next_fcf_index: the index to the next fcf record in hba's fcf table. |
| * |
| * This routine logs the detailed FCF record if the LOG_FIP loggin is |
| * enabled. |
| **/ |
| static void |
| lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba, |
| struct fcf_record *fcf_record, |
| uint16_t vlan_id, |
| uint16_t next_fcf_index) |
| { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2764 READ_FCF_RECORD:\n" |
| "\tFCF_Index : x%x\n" |
| "\tFCF_Avail : x%x\n" |
| "\tFCF_Valid : x%x\n" |
| "\tFCF_SOL : x%x\n" |
| "\tFIP_Priority : x%x\n" |
| "\tMAC_Provider : x%x\n" |
| "\tLowest VLANID : x%x\n" |
| "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n" |
| "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" |
| "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n" |
| "\tNext_FCF_Index: x%x\n", |
| bf_get(lpfc_fcf_record_fcf_index, fcf_record), |
| bf_get(lpfc_fcf_record_fcf_avail, fcf_record), |
| bf_get(lpfc_fcf_record_fcf_valid, fcf_record), |
| bf_get(lpfc_fcf_record_fcf_sol, fcf_record), |
| fcf_record->fip_priority, |
| bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record), |
| vlan_id, |
| bf_get(lpfc_fcf_record_mac_0, fcf_record), |
| bf_get(lpfc_fcf_record_mac_1, fcf_record), |
| bf_get(lpfc_fcf_record_mac_2, fcf_record), |
| bf_get(lpfc_fcf_record_mac_3, fcf_record), |
| bf_get(lpfc_fcf_record_mac_4, fcf_record), |
| bf_get(lpfc_fcf_record_mac_5, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_0, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_1, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_2, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_3, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_4, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_5, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_6, fcf_record), |
| bf_get(lpfc_fcf_record_fab_name_7, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_0, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_1, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_2, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_3, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_4, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_5, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_6, fcf_record), |
| bf_get(lpfc_fcf_record_switch_name_7, fcf_record), |
| next_fcf_index); |
| } |
| |
| /** |
| lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_rec: pointer to an existing FCF record. |
| * @new_fcf_record: pointer to a new FCF record. |
| * @new_vlan_id: vlan id from the new FCF record. |
| * |
| * This function performs matching test of a new FCF record against an existing |
| * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id |
| * will not be used as part of the FCF record matching criteria. |
| * |
| * Returns true if all the fields matching, otherwise returns false. |
| */ |
| static bool |
| lpfc_sli4_fcf_record_match(struct lpfc_hba *phba, |
| struct lpfc_fcf_rec *fcf_rec, |
| struct fcf_record *new_fcf_record, |
| uint16_t new_vlan_id) |
| { |
| if (new_vlan_id != LPFC_FCOE_IGNORE_VID) |
| if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id)) |
| return false; |
| if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record)) |
| return false; |
| if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record)) |
| return false; |
| if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record)) |
| return false; |
| if (fcf_rec->priority != new_fcf_record->fip_priority) |
| return false; |
| return true; |
| } |
| |
| /** |
| * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf |
| * @vport: Pointer to vport object. |
| * @fcf_index: index to next fcf. |
| * |
| * This function processing the roundrobin fcf failover to next fcf index. |
| * When this function is invoked, there will be a current fcf registered |
| * for flogi. |
| * Return: 0 for continue retrying flogi on currently registered fcf; |
| * 1 for stop flogi on currently registered fcf; |
| */ |
| int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) |
| { |
| struct lpfc_hba *phba = vport->phba; |
| int rc; |
| |
| if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) { |
| spin_lock_irq(&phba->hbalock); |
| if (phba->hba_flag & HBA_DEVLOSS_TMO) { |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2872 Devloss tmo with no eligible " |
| "FCF, unregister in-use FCF (x%x) " |
| "and rescan FCF table\n", |
| phba->fcf.current_rec.fcf_indx); |
| lpfc_unregister_fcf_rescan(phba); |
| goto stop_flogi_current_fcf; |
| } |
| /* Mark the end to FLOGI roundrobin failover */ |
| phba->hba_flag &= ~FCF_RR_INPROG; |
| /* Allow action to new fcf asynchronous event */ |
| phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2865 No FCF available, stop roundrobin FCF " |
| "failover and change port state:x%x/x%x\n", |
| phba->pport->port_state, LPFC_VPORT_UNKNOWN); |
| phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
| goto stop_flogi_current_fcf; |
| } else { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, |
| "2794 Try FLOGI roundrobin FCF failover to " |
| "(x%x)\n", fcf_index); |
| rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index); |
| if (rc) |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS, |
| "2761 FLOGI roundrobin FCF failover " |
| "failed (rc:x%x) to read FCF (x%x)\n", |
| rc, phba->fcf.current_rec.fcf_indx); |
| else |
| goto stop_flogi_current_fcf; |
| } |
| return 0; |
| |
| stop_flogi_current_fcf: |
| lpfc_can_disctmo(vport); |
| return 1; |
| } |
| |
| /** |
| * lpfc_sli4_fcf_pri_list_del |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_index the index of the fcf record to delete |
| * This routine checks the on list flag of the fcf_index to be deleted. |
| * If it is one the list then it is removed from the list, and the flag |
| * is cleared. This routine grab the hbalock before removing the fcf |
| * record from the list. |
| **/ |
| static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba, |
| uint16_t fcf_index) |
| { |
| struct lpfc_fcf_pri *new_fcf_pri; |
| |
| new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "3058 deleting idx x%x pri x%x flg x%x\n", |
| fcf_index, new_fcf_pri->fcf_rec.priority, |
| new_fcf_pri->fcf_rec.flag); |
| spin_lock_irq(&phba->hbalock); |
| if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) { |
| if (phba->fcf.current_rec.priority == |
| new_fcf_pri->fcf_rec.priority) |
| phba->fcf.eligible_fcf_cnt--; |
| list_del_init(&new_fcf_pri->list); |
| new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /** |
| * lpfc_sli4_set_fcf_flogi_fail |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_index the index of the fcf record to update |
| * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED |
| * flag so the the round robin slection for the particular priority level |
| * will try a different fcf record that does not have this bit set. |
| * If the fcf record is re-read for any reason this flag is cleared brfore |
| * adding it to the priority list. |
| **/ |
| void |
| lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index) |
| { |
| struct lpfc_fcf_pri *new_fcf_pri; |
| new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; |
| spin_lock_irq(&phba->hbalock); |
| new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED; |
| spin_unlock_irq(&phba->hbalock); |
| } |
| |
| /** |
| * lpfc_sli4_fcf_pri_list_add |
| * @phba: pointer to lpfc hba data structure. |
| * @fcf_index the index of the fcf record to add |
| * This routine checks the priority of the fcf_index to be added. |
| * If it is a lower priority than the current head of the fcf_pri list |
| * then it is added to the list in the right order. |
| * If it is the same priority as the current head of the list then it |
| * is added to the head of the list and its bit in the rr_bmask is set. |
| * If the fcf_index to be added is of a higher priority than the current |
| * head of the list then the rr_bmask is cleared, its bit is set in the |
| * rr_bmask and it is added to the head of the list. |
| * returns: |
| * 0=success 1=failure |
| **/ |
| static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba, |
| uint16_t fcf_index, |
| struct fcf_record *new_fcf_record) |
| { |
| uint16_t current_fcf_pri; |
| uint16_t last_index; |
| struct lpfc_fcf_pri *fcf_pri; |
| struct lpfc_fcf_pri *next_fcf_pri; |
| struct lpfc_fcf_pri *new_fcf_pri; |
| int ret; |
| |
| new_fcf_pri = &phba->fcf.fcf_pri[fcf_index]; |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "3059 adding idx x%x pri x%x flg x%x\n", |
| fcf_index, new_fcf_record->fip_priority, |
| new_fcf_pri->fcf_rec.flag); |
| spin_lock_irq(&phba->hbalock); |
| if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) |
| list_del_init(&new_fcf_pri->list); |
| new_fcf_pri->fcf_rec.fcf_index = fcf_index; |
| new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority; |
| if (list_empty(&phba->fcf.fcf_pri_list)) { |
| list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); |
| ret = lpfc_sli4_fcf_rr_index_set(phba, |
| new_fcf_pri->fcf_rec.fcf_index); |
| goto out; |
| } |
| |
| last_index = find_first_bit(phba->fcf.fcf_rr_bmask, |
| LPFC_SLI4_FCF_TBL_INDX_MAX); |
| if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { |
| ret = 0; /* Empty rr list */ |
| goto out; |
| } |
| current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority; |
| if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) { |
| list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list); |
| if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) { |
| memset(phba->fcf.fcf_rr_bmask, 0, |
| sizeof(*phba->fcf.fcf_rr_bmask)); |
| /* fcfs_at_this_priority_level = 1; */ |
| phba->fcf.eligible_fcf_cnt = 1; |
| } else |
| /* fcfs_at_this_priority_level++; */ |
| phba->fcf.eligible_fcf_cnt++; |
| ret = lpfc_sli4_fcf_rr_index_set(phba, |
| new_fcf_pri->fcf_rec.fcf_index); |
| goto out; |
| } |
| |
| list_for_each_entry_safe(fcf_pri, next_fcf_pri, |
| &phba->fcf.fcf_pri_list, list) { |
| if (new_fcf_pri->fcf_rec.priority <= |
| fcf_pri->fcf_rec.priority) { |
| if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list) |
| list_add(&new_fcf_pri->list, |
| &phba->fcf.fcf_pri_list); |
| else |
| list_add(&new_fcf_pri->list, |
| &((struct lpfc_fcf_pri *) |
| fcf_pri->list.prev)->list); |
| ret = 0; |
| goto out; |
| } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list |
| || new_fcf_pri->fcf_rec.priority < |
| next_fcf_pri->fcf_rec.priority) { |
| list_add(&new_fcf_pri->list, &fcf_pri->list); |
| ret = 0; |
| goto out; |
| } |
| if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority) |
| continue; |
| |
| } |
| ret = 1; |
| out: |
| /* we use = instead of |= to clear the FLOGI_FAILED flag. */ |
| new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST; |
| spin_unlock_irq(&phba->hbalock); |
| return ret; |
| } |
| |
| /** |
| * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox object. |
| * |
| * This function iterates through all the fcf records available in |
| * HBA and chooses the optimal FCF record for discovery. After finding |
| * the FCF for discovery it registers the FCF record and kicks start |
| * discovery. |
| * If FCF_IN_USE flag is set in currently used FCF, the routine tries to |
| * use an FCF record which matches fabric name and mac address of the |
| * currently used FCF record. |
| * If the driver supports only one FCF, it will try to use the FCF record |
| * used by BOOT_BIOS. |
| */ |
| void |
| lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct fcf_record *new_fcf_record; |
| uint32_t boot_flag, addr_mode; |
| uint16_t fcf_index, next_fcf_index; |
| struct lpfc_fcf_rec *fcf_rec = NULL; |
| uint16_t vlan_id = LPFC_FCOE_NULL_VID; |
| bool select_new_fcf; |
| int rc; |
| |
| /* If there is pending FCoE event restart FCF table scan */ |
| if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) { |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| return; |
| } |
| |
| /* Parse the FCF record from the non-embedded mailbox command */ |
| new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, |
| &next_fcf_index); |
| if (!new_fcf_record) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP, |
| "2765 Mailbox command READ_FCF_RECORD " |
| "failed to retrieve a FCF record.\n"); |
| /* Let next new FCF event trigger fast failover */ |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| return; |
| } |
| |
| /* Check the FCF record against the connection list */ |
| rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, |
| &addr_mode, &vlan_id); |
| |
| /* Log the FCF record information if turned on */ |
| lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, |
| next_fcf_index); |
| |
| /* |
| * If the fcf record does not match with connect list entries |
| * read the next entry; otherwise, this is an eligible FCF |
| * record for roundrobin FCF failover. |
| */ |
| if (!rc) { |
| lpfc_sli4_fcf_pri_list_del(phba, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "2781 FCF (x%x) failed connection " |
| "list check: (x%x/x%x/%x)\n", |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record), |
| bf_get(lpfc_fcf_record_fcf_avail, |
| new_fcf_record), |
| bf_get(lpfc_fcf_record_fcf_valid, |
| new_fcf_record), |
| bf_get(lpfc_fcf_record_fcf_sol, |
| new_fcf_record)); |
| if ((phba->fcf.fcf_flag & FCF_IN_USE) && |
| lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, |
| new_fcf_record, LPFC_FCOE_IGNORE_VID)) { |
| if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) != |
| phba->fcf.current_rec.fcf_indx) { |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP, |
| "2862 FCF (x%x) matches property " |
| "of in-use FCF (x%x)\n", |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record), |
| phba->fcf.current_rec.fcf_indx); |
| goto read_next_fcf; |
| } |
| /* |
| * In case the current in-use FCF record becomes |
| * invalid/unavailable during FCF discovery that |
| * was not triggered by fast FCF failover process, |
| * treat it as fast FCF failover. |
| */ |
| if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) && |
| !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "2835 Invalid in-use FCF " |
| "(x%x), enter FCF failover " |
| "table scan.\n", |
| phba->fcf.current_rec.fcf_indx); |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| lpfc_sli4_fcf_scan_read_fcf_rec(phba, |
| LPFC_FCOE_FCF_GET_FIRST); |
| return; |
| } |
| } |
| goto read_next_fcf; |
| } else { |
| fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); |
| rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, |
| new_fcf_record); |
| if (rc) |
| goto read_next_fcf; |
| } |
| |
| /* |
| * If this is not the first FCF discovery of the HBA, use last |
| * FCF record for the discovery. The condition that a rescan |
| * matches the in-use FCF record: fabric name, switch name, mac |
| * address, and vlan_id. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| if (phba->fcf.fcf_flag & FCF_IN_USE) { |
| if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && |
| lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec, |
| new_fcf_record, vlan_id)) { |
| if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) == |
| phba->fcf.current_rec.fcf_indx) { |
| phba->fcf.fcf_flag |= FCF_AVAILABLE; |
| if (phba->fcf.fcf_flag & FCF_REDISC_PEND) |
| /* Stop FCF redisc wait timer */ |
| __lpfc_sli4_stop_fcf_redisc_wait_timer( |
| phba); |
| else if (phba->fcf.fcf_flag & FCF_REDISC_FOV) |
| /* Fast failover, mark completed */ |
| phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2836 New FCF matches in-use " |
| "FCF (x%x), port_state:x%x, " |
| "fc_flag:x%x\n", |
| phba->fcf.current_rec.fcf_indx, |
| phba->pport->port_state, |
| phba->pport->fc_flag); |
| goto out; |
| } else |
| lpfc_printf_log(phba, KERN_ERR, LOG_FIP, |
| "2863 New FCF (x%x) matches " |
| "property of in-use FCF (x%x)\n", |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record), |
| phba->fcf.current_rec.fcf_indx); |
| } |
| /* |
| * Read next FCF record from HBA searching for the matching |
| * with in-use record only if not during the fast failover |
| * period. In case of fast failover period, it shall try to |
| * determine whether the FCF record just read should be the |
| * next candidate. |
| */ |
| if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| } |
| } |
| /* |
| * Update on failover FCF record only if it's in FCF fast-failover |
| * period; otherwise, update on current FCF record. |
| */ |
| if (phba->fcf.fcf_flag & FCF_REDISC_FOV) |
| fcf_rec = &phba->fcf.failover_rec; |
| else |
| fcf_rec = &phba->fcf.current_rec; |
| |
| if (phba->fcf.fcf_flag & FCF_AVAILABLE) { |
| /* |
| * If the driver FCF record does not have boot flag |
| * set and new hba fcf record has boot flag set, use |
| * the new hba fcf record. |
| */ |
| if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) { |
| /* Choose this FCF record */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2837 Update current FCF record " |
| "(x%x) with new FCF record (x%x)\n", |
| fcf_rec->fcf_indx, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, |
| addr_mode, vlan_id, BOOT_ENABLE); |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| } |
| /* |
| * If the driver FCF record has boot flag set and the |
| * new hba FCF record does not have boot flag, read |
| * the next FCF record. |
| */ |
| if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) { |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| } |
| /* |
| * If the new hba FCF record has lower priority value |
| * than the driver FCF record, use the new record. |
| */ |
| if (new_fcf_record->fip_priority < fcf_rec->priority) { |
| /* Choose the new FCF record with lower priority */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2838 Update current FCF record " |
| "(x%x) with new FCF record (x%x)\n", |
| fcf_rec->fcf_indx, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, |
| addr_mode, vlan_id, 0); |
| /* Reset running random FCF selection count */ |
| phba->fcf.eligible_fcf_cnt = 1; |
| } else if (new_fcf_record->fip_priority == fcf_rec->priority) { |
| /* Update running random FCF selection count */ |
| phba->fcf.eligible_fcf_cnt++; |
| select_new_fcf = lpfc_sli4_new_fcf_random_select(phba, |
| phba->fcf.eligible_fcf_cnt); |
| if (select_new_fcf) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2839 Update current FCF record " |
| "(x%x) with new FCF record (x%x)\n", |
| fcf_rec->fcf_indx, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| /* Choose the new FCF by random selection */ |
| __lpfc_update_fcf_record(phba, fcf_rec, |
| new_fcf_record, |
| addr_mode, vlan_id, 0); |
| } |
| } |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| } |
| /* |
| * This is the first suitable FCF record, choose this record for |
| * initial best-fit FCF. |
| */ |
| if (fcf_rec) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2840 Update initial FCF candidate " |
| "with FCF (x%x)\n", |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record, |
| addr_mode, vlan_id, (boot_flag ? |
| BOOT_ENABLE : 0)); |
| phba->fcf.fcf_flag |= FCF_AVAILABLE; |
| /* Setup initial running random FCF selection count */ |
| phba->fcf.eligible_fcf_cnt = 1; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| goto read_next_fcf; |
| |
| read_next_fcf: |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) { |
| if (phba->fcf.fcf_flag & FCF_REDISC_FOV) { |
| /* |
| * Case of FCF fast failover scan |
| */ |
| |
| /* |
| * It has not found any suitable FCF record, cancel |
| * FCF scan inprogress, and do nothing |
| */ |
| if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "2782 No suitable FCF found: " |
| "(x%x/x%x)\n", |
| phba->fcoe_eventtag_at_fcf_scan, |
| bf_get(lpfc_fcf_record_fcf_index, |
| new_fcf_record)); |
| spin_lock_irq(&phba->hbalock); |
| if (phba->hba_flag & HBA_DEVLOSS_TMO) { |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| /* Unregister in-use FCF and rescan */ |
| lpfc_printf_log(phba, KERN_INFO, |
| LOG_FIP, |
| "2864 On devloss tmo " |
| "unreg in-use FCF and " |
| "rescan FCF table\n"); |
| lpfc_unregister_fcf_rescan(phba); |
| return; |
| } |
| /* |
| * Let next new FCF event trigger fast failover |
| */ |
| phba->hba_flag &= ~FCF_TS_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| return; |
| } |
| /* |
| * It has found a suitable FCF record that is not |
| * the same as in-use FCF record, unregister the |
| * in-use FCF record, replace the in-use FCF record |
| * with the new FCF record, mark FCF fast failover |
| * completed, and then start register the new FCF |
| * record. |
| */ |
| |
| /* Unregister the current in-use FCF record */ |
| lpfc_unregister_fcf(phba); |
| |
| /* Replace in-use record with the new record */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2842 Replace in-use FCF (x%x) " |
| "with failover FCF (x%x)\n", |
| phba->fcf.current_rec.fcf_indx, |
| phba->fcf.failover_rec.fcf_indx); |
| memcpy(&phba->fcf.current_rec, |
| &phba->fcf.failover_rec, |
| sizeof(struct lpfc_fcf_rec)); |
| /* |
| * Mark the fast FCF failover rediscovery completed |
| * and the start of the first round of the roundrobin |
| * FCF failover. |
| */ |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| /* Register to the new FCF record */ |
| lpfc_register_fcf(phba); |
| } else { |
| /* |
| * In case of transaction period to fast FCF failover, |
| * do nothing when search to the end of the FCF table. |
| */ |
| if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) || |
| (phba->fcf.fcf_flag & FCF_REDISC_PEND)) |
| return; |
| |
| if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV && |
| phba->fcf.fcf_flag & FCF_IN_USE) { |
| /* |
| * In case the current in-use FCF record no |
| * longer existed during FCF discovery that |
| * was not triggered by fast FCF failover |
| * process, treat it as fast FCF failover. |
| */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2841 In-use FCF record (x%x) " |
| "not reported, entering fast " |
| "FCF failover mode scanning.\n", |
| phba->fcf.current_rec.fcf_indx); |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag |= FCF_REDISC_FOV; |
| spin_unlock_irq(&phba->hbalock); |
| lpfc_sli4_fcf_scan_read_fcf_rec(phba, |
| LPFC_FCOE_FCF_GET_FIRST); |
| return; |
| } |
| /* Register to the new FCF record */ |
| lpfc_register_fcf(phba); |
| } |
| } else |
| lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index); |
| return; |
| |
| out: |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| lpfc_register_fcf(phba); |
| |
| return; |
| } |
| |
| /** |
| * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox object. |
| * |
| * This is the callback function for FLOGI failure roundrobin FCF failover |
| * read FCF record mailbox command from the eligible FCF record bmask for |
| * performing the failover. If the FCF read back is not valid/available, it |
| * fails through to retrying FLOGI to the currently registered FCF again. |
| * Otherwise, if the FCF read back is valid and available, it will set the |
| * newly read FCF record to the failover FCF record, unregister currently |
| * registered FCF record, copy the failover FCF record to the current |
| * FCF record, and then register the current FCF record before proceeding |
| * to trying FLOGI on the new failover FCF. |
| */ |
| void |
| lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct fcf_record *new_fcf_record; |
| uint32_t boot_flag, addr_mode; |
| uint16_t next_fcf_index, fcf_index; |
| uint16_t current_fcf_index; |
| uint16_t vlan_id; |
| int rc; |
| |
| /* If link state is not up, stop the roundrobin failover process */ |
| if (phba->link_state < LPFC_LINK_UP) { |
| spin_lock_irq(&phba->hbalock); |
| phba->fcf.fcf_flag &= ~FCF_DISCOVERY; |
| phba->hba_flag &= ~FCF_RR_INPROG; |
| spin_unlock_irq(&phba->hbalock); |
| goto out; |
| } |
| |
| /* Parse the FCF record from the non-embedded mailbox command */ |
| new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, |
| &next_fcf_index); |
| if (!new_fcf_record) { |
| lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, |
| "2766 Mailbox command READ_FCF_RECORD " |
| "failed to retrieve a FCF record. " |
| "hba_flg x%x fcf_flg x%x\n", phba->hba_flag, |
| phba->fcf.fcf_flag); |
| lpfc_unregister_fcf_rescan(phba); |
| goto out; |
| } |
| |
| /* Get the needed parameters from FCF record */ |
| rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, |
| &addr_mode, &vlan_id); |
| |
| /* Log the FCF record information if turned on */ |
| lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, |
| next_fcf_index); |
| |
| fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); |
| if (!rc) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2848 Remove ineligible FCF (x%x) from " |
| "from roundrobin bmask\n", fcf_index); |
| /* Clear roundrobin bmask bit for ineligible FCF */ |
| lpfc_sli4_fcf_rr_index_clear(phba, fcf_index); |
| /* Perform next round of roundrobin FCF failover */ |
| fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba); |
| rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index); |
| if (rc) |
| goto out; |
| goto error_out; |
| } |
| |
| if (fcf_index == phba->fcf.current_rec.fcf_indx) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2760 Perform FLOGI roundrobin FCF failover: " |
| "FCF (x%x) back to FCF (x%x)\n", |
| phba->fcf.current_rec.fcf_indx, fcf_index); |
| /* Wait 500 ms before retrying FLOGI to current FCF */ |
| msleep(500); |
| lpfc_issue_init_vfi(phba->pport); |
| goto out; |
| } |
| |
| /* Upload new FCF record to the failover FCF record */ |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2834 Update current FCF (x%x) with new FCF (x%x)\n", |
| phba->fcf.failover_rec.fcf_indx, fcf_index); |
| spin_lock_irq(&phba->hbalock); |
| __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec, |
| new_fcf_record, addr_mode, vlan_id, |
| (boot_flag ? BOOT_ENABLE : 0)); |
| spin_unlock_irq(&phba->hbalock); |
| |
| current_fcf_index = phba->fcf.current_rec.fcf_indx; |
| |
| /* Unregister the current in-use FCF record */ |
| lpfc_unregister_fcf(phba); |
| |
| /* Replace in-use record with the new record */ |
| memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec, |
| sizeof(struct lpfc_fcf_rec)); |
| |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2783 Perform FLOGI roundrobin FCF failover: FCF " |
| "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index); |
| |
| error_out: |
| lpfc_register_fcf(phba); |
| out: |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| } |
| |
| /** |
| * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox object. |
| * |
| * This is the callback function of read FCF record mailbox command for |
| * updating the eligible FCF bmask for FLOGI failure roundrobin FCF |
| * failover when a new FCF event happened. If the FCF read back is |
| * valid/available and it passes the connection list check, it updates |
| * the bmask for the eligible FCF record for roundrobin failover. |
| */ |
| void |
| lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct fcf_record *new_fcf_record; |
| uint32_t boot_flag, addr_mode; |
| uint16_t fcf_index, next_fcf_index; |
| uint16_t vlan_id; |
| int rc; |
| |
| /* If link state is not up, no need to proceed */ |
| if (phba->link_state < LPFC_LINK_UP) |
| goto out; |
| |
| /* If FCF discovery period is over, no need to proceed */ |
| if (!(phba->fcf.fcf_flag & FCF_DISCOVERY)) |
| goto out; |
| |
| /* Parse the FCF record from the non-embedded mailbox command */ |
| new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq, |
| &next_fcf_index); |
| if (!new_fcf_record) { |
| lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
| "2767 Mailbox command READ_FCF_RECORD " |
| "failed to retrieve a FCF record.\n"); |
| goto out; |
| } |
| |
| /* Check the connection list for eligibility */ |
| rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag, |
| &addr_mode, &vlan_id); |
| |
| /* Log the FCF record information if turned on */ |
| lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id, |
| next_fcf_index); |
| |
| if (!rc) |
| goto out; |
| |
| /* Update the eligible FCF record index bmask */ |
| fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record); |
| |
| rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record); |
| |
| out: |
| lpfc_sli4_mbox_cmd_free(phba, mboxq); |
| } |
| |
| /** |
| * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox data structure. |
| * |
| * This function handles completion of init vfi mailbox command. |
| */ |
| static void |
| lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_vport *vport = mboxq->vport; |
| |
| /* |
| * VFI not supported on interface type 0, just do the flogi |
| * Also continue if the VFI is in use - just use the same one. |
| */ |
| if (mboxq->u.mb.mbxStatus && |
| (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| LPFC_SLI_INTF_IF_TYPE_0) && |
| mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_MBOX, |
| "2891 Init VFI mailbox failed 0x%x\n", |
| mboxq->u.mb.mbxStatus); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| return; |
| } |
| |
| lpfc_initial_flogi(vport); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_issue_init_vfi - Issue init_vfi mailbox command. |
| * @vport: pointer to lpfc_vport data structure. |
| * |
| * This function issue a init_vfi mailbox command to initialize the VFI and |
| * VPI for the physical port. |
| */ |
| void |
| lpfc_issue_init_vfi(struct lpfc_vport *vport) |
| { |
| LPFC_MBOXQ_t *mboxq; |
| int rc; |
| struct lpfc_hba *phba = vport->phba; |
| |
| mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mboxq) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_MBOX, "2892 Failed to allocate " |
| "init_vfi mailbox\n"); |
| return; |
| } |
| lpfc_init_vfi(mboxq, vport); |
| mboxq->mbox_cmpl = lpfc_init_vfi_cmpl; |
| rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n"); |
| mempool_free(mboxq, vport->phba->mbox_mem_pool); |
| } |
| } |
| |
| /** |
| * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command. |
| * @phba: pointer to lpfc hba data structure. |
| * @mboxq: pointer to mailbox data structure. |
| * |
| * This function handles completion of init vpi mailbox command. |
| */ |
| void |
| lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_vport *vport = mboxq->vport; |
| struct lpfc_nodelist *ndlp; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| if (mboxq->u.mb.mbxStatus) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_MBOX, |
| "2609 Init VPI mailbox failed 0x%x\n", |
| mboxq->u.mb.mbxStatus); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| return; |
| } |
| spin_lock_irq(shost->host_lock); |
| vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; |
| spin_unlock_irq(shost->host_lock); |
| |
| /* If this port is physical port or FDISC is done, do reg_vpi */ |
| if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) { |
| ndlp = lpfc_findnode_did(vport, Fabric_DID); |
| if (!ndlp) |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_DISCOVERY, |
| "2731 Cannot find fabric " |
| "controller node\n"); |
| else |
| lpfc_register_new_vport(phba, vport, ndlp); |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) |
| lpfc_initial_fdisc(vport); |
| else { |
| lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
| "2606 No NPIV Fabric support\n"); |
| } |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| /** |
| * lpfc_issue_init_vpi - Issue init_vpi mailbox command. |
| * @vport: pointer to lpfc_vport data structure. |
| * |
| * This function issue a init_vpi mailbox command to initialize |
| * VPI for the vport. |
| */ |
| void |
| lpfc_issue_init_vpi(struct lpfc_vport *vport) |
| { |
| LPFC_MBOXQ_t *mboxq; |
| int rc, vpi; |
| |
| if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) { |
| vpi = lpfc_alloc_vpi(vport->phba); |
| if (!vpi) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_MBOX, |
| "3303 Failed to obtain vport vpi\n"); |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| return; |
| } |
| vport->vpi = vpi; |
| } |
| |
| mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mboxq) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_MBOX, "2607 Failed to allocate " |
| "init_vpi mailbox\n"); |
| return; |
| } |
| lpfc_init_vpi(vport->phba, mboxq, vport->vpi); |
| mboxq->vport = vport; |
| mboxq->mbox_cmpl = lpfc_init_vpi_cmpl; |
| rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT); |
| if (rc == MBX_NOT_FINISHED) { |
| lpfc_printf_vlog(vport, KERN_ERR, |
| LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n"); |
| mempool_free(mboxq, vport->phba->mbox_mem_pool); |
| } |
| } |
| |
| /** |
| * lpfc_start_fdiscs - send fdiscs for each vports on this port. |
| * @phba: pointer to lpfc hba data structure. |
| * |
| * This function loops through the list of vports on the @phba and issues an |
| * FDISC if possible. |
| */ |
| void |
| lpfc_start_fdiscs(struct lpfc_hba *phba) |
| { |
| struct lpfc_vport **vports; |
| int i; |
| |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports != NULL) { |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| if (vports[i]->port_type == LPFC_PHYSICAL_PORT) |
| continue; |
| /* There are no vpi for this vport */ |
| if (vports[i]->vpi > phba->max_vpi) { |
| lpfc_vport_set_state(vports[i], |
| FC_VPORT_FAILED); |
| continue; |
| } |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| lpfc_vport_set_state(vports[i], |
| FC_VPORT_LINKDOWN); |
| continue; |
| } |
| if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { |
| lpfc_issue_init_vpi(vports[i]); |
| continue; |
| } |
| if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) |
| lpfc_initial_fdisc(vports[i]); |
| else { |
| lpfc_vport_set_state(vports[i], |
| FC_VPORT_NO_FABRIC_SUPP); |
| lpfc_printf_vlog(vports[i], KERN_ERR, |
| LOG_ELS, |
| "0259 No NPIV " |
| "Fabric support\n"); |
| } |
| } |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| } |
| |
| void |
| lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) |
| { |
| struct lpfc_dmabuf *dmabuf = mboxq->context1; |
| struct lpfc_vport *vport = mboxq->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| |
| /* |
| * VFI not supported for interface type 0, so ignore any mailbox |
| * error (except VFI in use) and continue with the discovery. |
| */ |
| if (mboxq->u.mb.mbxStatus && |
| (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| LPFC_SLI_INTF_IF_TYPE_0) && |
| mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
| "2018 REG_VFI mbxStatus error x%x " |
| "HBA state x%x\n", |
| mboxq->u.mb.mbxStatus, vport->port_state); |
| if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { |
| /* FLOGI failed, use loop map to make discovery list */ |
| lpfc_disc_list_loopmap(vport); |
| /* Start discovery */ |
| lpfc_disc_start(vport); |
| goto out_free_mem; |
| } |
| lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
| goto out_free_mem; |
| } |
| |
| /* If the VFI is already registered, there is nothing else to do |
| * Unless this was a VFI update and we are in PT2PT mode, then |
| * we should drop through to set the port state to ready. |
| */ |
| if (vport->fc_flag & FC_VFI_REGISTERED) |
| if (!(phba->sli_rev == LPFC_SLI_REV4 && |
| vport->fc_flag & FC_PT2PT)) |
| goto out_free_mem; |
| |
| /* The VPI is implicitly registered when the VFI is registered */ |
| spin_lock_irq(shost->host_lock); |
| vport->vpi_state |= LPFC_VPI_REGISTERED; |
| vport->fc_flag |= FC_VFI_REGISTERED; |
| vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
| vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI; |
| spin_unlock_irq(shost->host_lock); |
| |
| /* In case SLI4 FC loopback test, we are ready */ |
| if ((phba->sli_rev == LPFC_SLI_REV4) && |
| (phba->link_flag & LS_LOOPBACK_MODE)) { |
| phba->link_state = LPFC_HBA_READY; |
| goto out_free_mem; |
| } |
| |
| lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
| "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x " |
| "alpacnt:%d LinkState:%x topology:%x\n", |
| vport->port_state, vport->fc_flag, vport->fc_myDID, |
| vport->phba->alpa_map[0], |
| phba->link_state, phba->fc_topology); |
| |
| if (vport->port_state == LPFC_FABRIC_CFG_LINK) { |
| /* |
| * For private loop or for NPort pt2pt, |
| * just start discovery and we are done. |
| */ |
| if ((vport->fc_flag & FC_PT2PT) || |
| ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && |
| !(vport->fc_flag & FC_PUBLIC_LOOP))) { |
| |
| /* Use loop map to make discovery list */ |
| lpfc_disc_list_loopmap(vport); |
| /* Start discovery */ |
| if (vport->fc_flag & FC_PT2PT) |
| vport->port_state = LPFC_VPORT_READY; |
| else |
| lpfc_disc_start(vport); |
| } else { |
| lpfc_start_fdiscs(phba); |
| lpfc_do_scr_ns_plogi(phba, vport); |
| } |
| } |
| |
| out_free_mem: |
| mempool_free(mboxq, phba->mbox_mem_pool); |
| if (dmabuf) { |
| lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); |
| kfree(dmabuf); |
| } |
| return; |
| } |
| |
| static void |
| lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
| { |
| MAILBOX_t *mb = &pmb->u.mb; |
| struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; |
| struct lpfc_vport *vport = pmb->vport; |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct serv_parm *sp = &vport->fc_sparam; |
| uint32_t ed_tov; |
| |
| /* Check for error */ |
| if (mb->mbxStatus) { |
| /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
| "0319 READ_SPARAM mbxStatus error x%x " |
| "hba state x%x>\n", |
| mb->mbxStatus, vport->port_state); |
| lpfc_linkdown(phba); |
| goto out; |
| } |
| |
| memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, |
| sizeof (struct serv_parm)); |
| |
| ed_tov = be32_to_cpu(sp->cmn.e_d_tov); |
| if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ |
| ed_tov = (ed_tov + 999999) / 1000000; |
| |
| phba->fc_edtov = ed_tov; |
| phba->fc_ratov = (2 * ed_tov) / 1000; |
| if (phba->fc_ratov < FF_DEF_RATOV) { |
| /* RA_TOV should be atleast 10sec for initial flogi */ |
| phba->fc_ratov = FF_DEF_RATOV; |
| } |
| |
| lpfc_update_vport_wwn(vport); |
| fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); |
| if (vport->port_type == LPFC_PHYSICAL_PORT) { |
| memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn)); |
| memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn)); |
| } |
| |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| |
| out: |
| pmb->context1 = NULL; |
| lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| lpfc_issue_clear_la(phba, vport); |
| mempool_free(pmb, phba->mbox_mem_pool); |
| return; |
| } |
| |
| static void |
| lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la) |
| { |
| struct lpfc_vport *vport = phba->pport; |
| LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; |
| struct Scsi_Host *shost; |
| int i; |
| struct lpfc_dmabuf *mp; |
| int rc; |
| struct fcf_record *fcf_record; |
| uint32_t fc_flags = 0; |
| |
| |