diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_hbadisc.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hbadisc.c | 4060 |
1 files changed, 3617 insertions, 443 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 976653440fb..2a17e31265b 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2008 Emulex. All rights reserved. * + * Copyright (C) 2004-2014 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * @@ -20,6 +20,8 @@ *******************************************************************/ #include <linux/blkdev.h> +#include <linux/delay.h> +#include <linux/slab.h> #include <linux/pci.h> #include <linux/kthread.h> #include <linux/interrupt.h> @@ -29,9 +31,12 @@ #include <scsi/scsi_host.h> #include <scsi/scsi_transport_fc.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_scsi.h" #include "lpfc.h" #include "lpfc_logmsg.h" @@ -58,6 +63,8 @@ static uint8_t lpfcAlpaArray[] = { 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) @@ -69,7 +76,7 @@ lpfc_terminate_rport_io(struct fc_rport *rport) rdata = rport->dd_data; ndlp = rdata->pnode; - if (!ndlp) { + 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", @@ -77,7 +84,7 @@ lpfc_terminate_rport_io(struct fc_rport *rport) return; } - phba = ndlp->vport->phba; + phba = ndlp->phba; lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT, "rport terminate: sid:x%x did:x%x flg:x%x", @@ -88,14 +95,6 @@ lpfc_terminate_rport_io(struct fc_rport *rport) &phba->sli.ring[phba->sli.fcp_ring], ndlp->nlp_sid, 0, LPFC_CTX_TGT); } - - /* - * A device is normally blocked for rediscovery and unblocked when - * devloss timeout happens. In case a vport is removed or driver - * unloaded before devloss timeout happens, we need to unblock here. - */ - scsi_target_unblock(&rport->dev); - return; } /* @@ -114,7 +113,7 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) rdata = rport->dd_data; ndlp = rdata->pnode; - if (!ndlp) + if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) return; vport = ndlp->vport; @@ -124,6 +123,10 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *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. @@ -143,31 +146,47 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) return; + if (ndlp->nlp_type & NLP_FABRIC) { + + /* If the WWPN of the rport and ndlp don't match, ignore it */ + if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) { + put_device(&rport->dev); + return; + } + } + evtp = &ndlp->dev_loss_evt; if (!list_empty(&evtp->evt_listp)) return; + evtp->evt_arg1 = lpfc_nlp_get(ndlp); + spin_lock_irq(&phba->hbalock); /* We need to hold the node by incrementing the reference * count until this queued work is done */ - evtp->evt_arg1 = lpfc_nlp_get(ndlp); - evtp->evt = LPFC_EVT_DEV_LOSS; - list_add_tail(&evtp->evt_listp, &phba->work_list); - if (phba->work_wait) - wake_up(phba->work_wait); - + 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; } -/* - * This function is called from the worker thread when dev_loss_tmo - * expire. - */ -static void +/** + * 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; @@ -178,21 +197,29 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) int put_node; int put_rport; int warn_on = 0; + int fcf_inuse = 0; rport = ndlp->rport; if (!rport) - return; + return fcf_inuse; rdata = rport->dd_data; name = (uint8_t *) &ndlp->nlp_portname; vport = ndlp->vport; 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); + /* 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. @@ -212,11 +239,19 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) lpfc_nlp_put(ndlp); if (put_rport) put_device(&rport->dev); - return; + return fcf_inuse; } - if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) - return; + 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; + } if (ndlp->nlp_type & NLP_FABRIC) { /* We will clean up these Nodes in linkup */ @@ -228,7 +263,7 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) lpfc_nlp_put(ndlp); if (put_rport) put_device(&rport->dev); - return; + return fcf_inuse; } if (ndlp->nlp_sid != NLP_NO_SID) { @@ -237,14 +272,12 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], ndlp->nlp_sid, 0, LPFC_CTX_TGT); } - if (vport->load_flag & FC_UNLOADING) - warn_on = 0; if (warn_on) { lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0203 Devloss timeout on " - "WWPN %x:%x:%x:%x:%x:%x:%x:%x " - "NPort x%x Data: x%x x%x x%x\n", + "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, @@ -252,8 +285,8 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) } else { lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0204 Devloss timeout on " - "WWPN %x:%x:%x:%x:%x:%x:%x:%x " - "NPort x%x Data: x%x x%x x%x\n", + "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, @@ -272,15 +305,198 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) if (!(vport->load_flag & FC_UNLOADING) && !(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_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_worker_wake_up(struct lpfc_hba *phba) +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) { - wake_up(phba->work_wait); + 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; + } + + 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; } @@ -290,6 +506,8 @@ 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)) { @@ -309,12 +527,17 @@ lpfc_work_list_done(struct lpfc_hba *phba) break; case LPFC_EVT_DEV_LOSS: ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1); - lpfc_dev_loss_tmo_handler(ndlp); + 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) @@ -325,7 +548,7 @@ lpfc_work_list_done(struct lpfc_hba *phba) break; case LPFC_EVT_OFFLINE_PREP: if (phba->link_state >= LPFC_LINK_DOWN) - lpfc_offline_prep(phba); + lpfc_offline_prep(phba, LPFC_MBX_WAIT); *(int *)(evtp->evt_arg1) = 0; complete((struct completion *)(evtp->evt_arg2)); break; @@ -355,6 +578,14 @@ lpfc_work_list_done(struct lpfc_hba *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); @@ -378,7 +609,12 @@ lpfc_work_done(struct lpfc_hba *phba) 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) @@ -386,9 +622,30 @@ lpfc_work_done(struct lpfc_hba *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 & 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_vpi; i++) { + 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 @@ -399,7 +656,10 @@ lpfc_work_done(struct lpfc_hba *phba) 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) @@ -414,118 +674,92 @@ lpfc_work_done(struct lpfc_hba *phba) lpfc_fdmi_timeout_handler(vport); if (work_port_events & WORKER_RAMP_DOWN_QUEUE) lpfc_ramp_down_queue_handler(phba); - if (work_port_events & WORKER_RAMP_UP_QUEUE) - lpfc_ramp_up_queue_handler(phba); - spin_lock_irq(&vport->work_port_lock); - vport->work_port_events &= ~work_port_events; - spin_unlock_irq(&vport->work_port_lock); + if (work_port_events & WORKER_DELAYED_DISC_TMO) + lpfc_delayed_disc_timeout_handler(vport); } lpfc_destroy_vport_work_array(phba, vports); pring = &phba->sli.ring[LPFC_ELS_RING]; status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); status >>= (4*LPFC_ELS_RING); - if ((status & HA_RXMASK) - || (pring->flag & LPFC_DEFERRED_RING_EVENT)) { + if ((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 { - lpfc_sli_handle_slow_ring_event(phba, pring, - (status & - HA_RXMASK)); - pring->flag &= ~LPFC_DEFERRED_RING_EVENT; + if (phba->link_state >= LPFC_LINK_UP) { + 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 */ - 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); + 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); } - spin_unlock_irq(&phba->hbalock); } lpfc_work_list_done(phba); } -static int -check_work_wait_done(struct lpfc_hba *phba) -{ - struct lpfc_vport *vport; - struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; - int rc = 0; - - spin_lock_irq(&phba->hbalock); - list_for_each_entry(vport, &phba->port_list, listentry) { - if (vport->work_port_events) { - rc = 1; - break; - } - } - if (rc || phba->work_ha || (!list_empty(&phba->work_list)) || - kthread_should_stop() || pring->flag & LPFC_DEFERRED_RING_EVENT) { - rc = 1; - phba->work_found++; - } else - phba->work_found = 0; - spin_unlock_irq(&phba->hbalock); - return rc; -} - - int lpfc_do_work(void *p) { struct lpfc_hba *phba = p; int rc; - DECLARE_WAIT_QUEUE_HEAD_ONSTACK(work_waitq); - - set_user_nice(current, -20); - phba->work_wait = &work_waitq; - phba->work_found = 0; - while (1) { - - rc = wait_event_interruptible(work_waitq, - check_work_wait_done(phba)); - - BUG_ON(rc); - - if (kthread_should_stop()) + 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); - - /* If there is alot of slow ring work, like during link up - * check_work_wait_done() may cause this thread to not give - * up the CPU for very long periods of time. This may cause - * soft lockups or other problems. To avoid these situations - * give up the CPU here after LPFC_MAX_WORKER_ITERATION - * consecutive iterations. - */ - if (phba->work_found >= LPFC_MAX_WORKER_ITERATION) { - phba->work_found = 0; - schedule(); - } } - phba->work_wait = NULL; + 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 - * occurance, we allocate a struct lpfc_work_evt structure here instead of + * occurrence, we allocate a struct lpfc_work_evt structure here instead of * embedding it in the IOCB. */ int @@ -549,10 +783,10 @@ lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2, spin_lock_irqsave(&phba->hbalock, flags); list_add_tail(&evtp->evt_listp, &phba->work_list); - if (phba->work_wait) - lpfc_worker_wake_up(phba); spin_unlock_irqrestore(&phba->hbalock, flags); + lpfc_worker_wake_up(phba); + return 1; } @@ -575,7 +809,8 @@ lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) lpfc_unreg_rpi(vport, ndlp); /* Leave Fabric nodes alone on link down */ - if (!remove && ndlp->nlp_type & NLP_FABRIC) + if ((phba->sli_rev < LPFC_SLI_REV4) && + (!remove && ndlp->nlp_type & NLP_FABRIC)) continue; rc = lpfc_disc_state_machine(vport, ndlp, NULL, remove @@ -583,6 +818,8 @@ lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) : 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; @@ -593,6 +830,11 @@ lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove) 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); @@ -605,7 +847,7 @@ lpfc_port_link_failure(struct lpfc_vport *vport) lpfc_can_disctmo(vport); } -static void +void lpfc_linkdown_port(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); @@ -618,6 +860,11 @@ lpfc_linkdown_port(struct lpfc_vport *vport) 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 @@ -631,15 +878,22 @@ lpfc_linkdown(struct lpfc_hba *phba) 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); } - spin_unlock_irq(&phba->hbalock); vports = lpfc_create_vport_work_array(phba); if (vports != NULL) - for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { /* Issue a LINK DOWN event to all nodes */ lpfc_linkdown_port(vports[i]); } @@ -647,7 +901,7 @@ lpfc_linkdown(struct lpfc_hba *phba) /* Clean up any firmware default rpi's */ mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mb) { - lpfc_unreg_did(phba, 0xffff, 0xffffffff, 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) @@ -741,6 +995,7 @@ lpfc_linkup(struct lpfc_hba *phba) struct lpfc_vport **vports; int i; + lpfc_cleanup_wt_rrqs(phba); phba->link_state = LPFC_LINK_UP; /* Unblock fabric iocbs if they are blocked */ @@ -749,11 +1004,9 @@ lpfc_linkup(struct lpfc_hba *phba) vports = lpfc_create_vport_work_array(phba); if (vports != NULL) - for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) lpfc_linkup_port(vports[i]); lpfc_destroy_vport_work_array(phba, vports); - if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) - lpfc_issue_clear_la(phba, phba->pport); return 0; } @@ -770,7 +1023,7 @@ 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->mb; + MAILBOX_t *mb = &pmb->u.mb; uint32_t control; /* Since we don't do discovery right now, turn these off here */ @@ -809,11 +1062,9 @@ out: mempool_free(pmb, phba->mbox_mem_pool); spin_lock_irq(shost->host_lock); - vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_ESTABLISH_LINK); + vport->fc_flag &= ~FC_ABORT_DISCOVERY; spin_unlock_irq(shost->host_lock); - del_timer_sync(&phba->fc_estabtmo); - lpfc_can_disctmo(vport); /* turn on Link Attention interrupts */ @@ -835,12 +1086,18 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_vport *vport = pmb->vport; - if (pmb->mb.mbxStatus) + if (pmb->u.mb.mbxStatus) goto out; mempool_free(pmb, phba->mbox_mem_pool); - if (phba->fc_topology == TOPOLOGY_LOOP && + /* 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 @@ -854,16 +1111,15 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) /* Start discovery by sending a FLOGI. port_state is identically * LPFC_FLOGI while waiting for FLOGI cmpl */ - if (vport->port_state != LPFC_FLOGI) { + if (vport->port_state != LPFC_FLOGI || vport->fc_flag & FC_PT2PT_PLOGI) lpfc_initial_flogi(vport); - } return; out: lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, "0306 CONFIG_LINK mbxStatus error x%x " "HBA state x%x\n", - pmb->mb.mbxStatus, vport->port_state); + pmb->u.mb.mbxStatus, vport->port_state); mempool_free(pmb, phba->mbox_mem_pool); lpfc_linkdown(phba); @@ -876,10 +1132,1847 @@ out: 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; + + 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) +{ + /* 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; + dma_addr_t phys_addr; + struct lpfc_mbx_sge sge; + struct lpfc_mbx_read_fcf_tbl *read_fcf; + uint32_t shdr_status, shdr_add_status; + 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); + phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); + 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); + 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) + 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 + **/ +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; + uint32_t seed; + 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; + /* Seeding the random number generator for random selection */ + seed = (uint32_t)(0xFFFFFFFF & jiffies); + prandom_seed(seed); + } + 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. + */ +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); + 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->mb; + MAILBOX_t *mb = &pmb->u.mb; struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1; struct lpfc_vport *vport = pmb->vport; @@ -897,16 +2990,7 @@ lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt, sizeof (struct serv_parm)); - if (phba->cfg_soft_wwnn) - u64_to_wwn(phba->cfg_soft_wwnn, - vport->fc_sparam.nodeName.u.wwn); - if (phba->cfg_soft_wwpn) - u64_to_wwn(phba->cfg_soft_wwpn, - vport->fc_sparam.portName.u.wwn); - memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, - sizeof(vport->fc_nodename)); - memcpy(&vport->fc_portname, &vport->fc_sparam.portName, - sizeof(vport->fc_portname)); + lpfc_update_vport_wwn(vport); 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)); @@ -927,48 +3011,61 @@ out: } static void -lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) +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; + LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL; + struct Scsi_Host *shost; int i; struct lpfc_dmabuf *mp; int rc; - - sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); - cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + struct fcf_record *fcf_record; + uint32_t fc_flags = 0; spin_lock_irq(&phba->hbalock); - switch (la->UlnkSpeed) { - case LA_1GHZ_LINK: - phba->fc_linkspeed = LA_1GHZ_LINK; - break; - case LA_2GHZ_LINK: - phba->fc_linkspeed = LA_2GHZ_LINK; - break; - case LA_4GHZ_LINK: - phba->fc_linkspeed = LA_4GHZ_LINK; - break; - case LA_8GHZ_LINK: - phba->fc_linkspeed = LA_8GHZ_LINK; + switch (bf_get(lpfc_mbx_read_top_link_spd, la)) { + case LPFC_LINK_SPEED_1GHZ: + case LPFC_LINK_SPEED_2GHZ: + case LPFC_LINK_SPEED_4GHZ: + case LPFC_LINK_SPEED_8GHZ: + case LPFC_LINK_SPEED_10GHZ: + case LPFC_LINK_SPEED_16GHZ: + phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la); break; default: - phba->fc_linkspeed = LA_UNKNW_LINK; + phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN; break; } - phba->fc_topology = la->topology; + if (phba->fc_topology && + phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) { + lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, + "3314 Toplogy changed was 0x%x is 0x%x\n", + phba->fc_topology, + bf_get(lpfc_mbx_read_top_topology, la)); + phba->fc_topology_changed = 1; + } + + phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la); phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; - if (phba->fc_topology == TOPOLOGY_LOOP) { + shost = lpfc_shost_from_vport(vport); + if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; + /* if npiv is enabled and this adapter supports npiv log + * a message that npiv is not supported in this topology + */ + if (phba->cfg_enable_npiv && phba->max_vpi) + lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, + "1309 Link Up Event npiv not supported in loop " + "topology\n"); /* Get Loop Map information */ - if (la->il) - vport->fc_flag |= FC_LBIT; + if (bf_get(lpfc_mbx_read_top_il, la)) + fc_flags |= FC_LBIT; - vport->fc_myDID = la->granted_AL_PA; - i = la->un.lilpBde64.tus.f.bdeSize; + vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la); + i = la->lilpBde64.tus.f.bdeSize; if (i == 0) { phba->alpa_map[0] = 0; @@ -1010,41 +3107,114 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la) } else { if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { if (phba->max_vpi && phba->cfg_enable_npiv && - (phba->sli_rev == 3)) + (phba->sli_rev >= LPFC_SLI_REV3)) phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; } vport->fc_myDID = phba->fc_pref_DID; - vport->fc_flag |= FC_LBIT; + fc_flags |= FC_LBIT; } spin_unlock_irq(&phba->hbalock); + if (fc_flags) { + spin_lock_irq(shost->host_lock); + vport->fc_flag |= fc_flags; + spin_unlock_irq(shost->host_lock); + } + lpfc_linkup(phba); - if (sparam_mbox) { - lpfc_read_sparam(phba, sparam_mbox, 0); - sparam_mbox->vport = vport; - sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; - rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); - if (rc == MBX_NOT_FINISHED) { - mp = (struct lpfc_dmabuf *) sparam_mbox->context1; - lpfc_mbuf_free(phba, mp->virt, mp->phys); - kfree(mp); - mempool_free(sparam_mbox, phba->mbox_mem_pool); - if (cfglink_mbox) - mempool_free(cfglink_mbox, phba->mbox_mem_pool); - goto out; - } + sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!sparam_mbox) + goto out; + + rc = lpfc_read_sparam(phba, sparam_mbox, 0); + if (rc) { + mempool_free(sparam_mbox, phba->mbox_mem_pool); + goto out; + } + sparam_mbox->vport = vport; + sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam; + rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) { + mp = (struct lpfc_dmabuf *) sparam_mbox->context1; + lpfc_mbuf_free(phba, mp->virt, mp->phys); + kfree(mp); + mempool_free(sparam_mbox, phba->mbox_mem_pool); + goto out; } - if (cfglink_mbox) { + if (!(phba->hba_flag & HBA_FCOE_MODE)) { + cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!cfglink_mbox) + goto out; vport->port_state = LPFC_LOCAL_CFG_LINK; lpfc_config_link(phba, cfglink_mbox); cfglink_mbox->vport = vport; cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link; rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT); - if (rc != MBX_NOT_FINISHED) + if (rc == MBX_NOT_FINISHED) { + mempool_free(cfglink_mbox, phba->mbox_mem_pool); + goto out; + } + } else { + vport->port_state = LPFC_VPORT_UNKNOWN; + /* + * Add the driver's default FCF record at FCF index 0 now. This + * is phase 1 implementation that support FCF index 0 and driver + * defaults. + */ + if (!(phba->hba_flag & HBA_FIP_SUPPORT)) { + fcf_record = kzalloc(sizeof(struct fcf_record), + GFP_KERNEL); + if (unlikely(!fcf_record)) { + lpfc_printf_log(phba, KERN_ERR, + LOG_MBOX | LOG_SLI, + "2554 Could not allocate memory for " + "fcf record\n"); + rc = -ENODEV; + goto out; + } + + lpfc_sli4_build_dflt_fcf_record(phba, fcf_record, + LPFC_FCOE_FCF_DEF_INDEX); + rc = lpfc_sli4_add_fcf_record(phba, fcf_record); + if (unlikely(rc)) { + lpfc_printf_log(phba, KERN_ERR, + LOG_MBOX | LOG_SLI, + "2013 Could not manually add FCF " + "record 0, status %d\n", rc); + rc = -ENODEV; + kfree(fcf_record); + goto out; + } + kfree(fcf_record); + } + /* + * The driver is expected to do FIP/FCF. Call the port + * and get the FCF Table. + */ + spin_lock_irq(&phba->hbalock); + if (phba->hba_flag & FCF_TS_INPROG) { + spin_unlock_irq(&phba->hbalock); return; - mempool_free(cfglink_mbox, phba->mbox_mem_pool); + } + /* This is the initial FCF discovery scan */ + phba->fcf.fcf_flag |= FCF_INIT_DISC; + spin_unlock_irq(&phba->hbalock); + lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, + "2778 Start FCF table scan at linkup\n"); + rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, + LPFC_FCOE_FCF_GET_FIRST); + if (rc) { + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_INIT_DISC; + spin_unlock_irq(&phba->hbalock); + goto out; + } + /* Reset FCF roundrobin bmask for new discovery */ + lpfc_sli4_clear_fcf_rr_bmask(phba); } + + return; out: lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, @@ -1055,38 +3225,48 @@ out: } static void -lpfc_mbx_issue_link_down(struct lpfc_hba *phba) +lpfc_enable_la(struct lpfc_hba *phba) { uint32_t control; struct lpfc_sli *psli = &phba->sli; - - lpfc_linkdown(phba); - - /* turn on Link Attention interrupts - no CLEAR_LA needed */ 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 */ + if (phba->sli_rev <= LPFC_SLI_REV3) { + control = readl(phba->HCregaddr); + control |= HC_LAINT_ENA; + writel(control, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + } spin_unlock_irq(&phba->hbalock); } +static void +lpfc_mbx_issue_link_down(struct lpfc_hba *phba) +{ + lpfc_linkdown(phba); + lpfc_enable_la(phba); + lpfc_unregister_unused_fcf(phba); + /* turn on Link Attention interrupts - no CLEAR_LA needed */ +} + + /* - * This routine handles processing a READ_LA mailbox + * This routine handles processing a READ_TOPOLOGY mailbox * command upon completion. It is setup in the LPFC_MBOXQ * as the completion routine when the command is * handed off to the SLI layer. */ void -lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) +lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_vport *vport = pmb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); - READ_LA_VAR *la; - MAILBOX_t *mb = &pmb->mb; + struct lpfc_mbx_read_top *la; + MAILBOX_t *mb = &pmb->u.mb; struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); + /* Unblock ELS traffic */ + phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; /* Check for error */ if (mb->mbxStatus) { lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, @@ -1094,69 +3274,123 @@ lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) mb->mbxStatus, vport->port_state); lpfc_mbx_issue_link_down(phba); phba->link_state = LPFC_HBA_ERROR; - goto lpfc_mbx_cmpl_read_la_free_mbuf; + goto lpfc_mbx_cmpl_read_topology_free_mbuf; } - la = (READ_LA_VAR *) & pmb->mb.un.varReadLA; + la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; memcpy(&phba->alpa_map[0], mp->virt, 128); spin_lock_irq(shost->host_lock); - if (la->pb) + if (bf_get(lpfc_mbx_read_top_pb, la)) vport->fc_flag |= FC_BYPASSED_MODE; else vport->fc_flag &= ~FC_BYPASSED_MODE; spin_unlock_irq(shost->host_lock); - if (((phba->fc_eventTag + 1) < la->eventTag) || - (phba->fc_eventTag == la->eventTag)) { + if (phba->fc_eventTag <= la->eventTag) { phba->fc_stat.LinkMultiEvent++; - if (la->attType == AT_LINK_UP) + if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) if (phba->fc_eventTag != 0) lpfc_linkdown(phba); } phba->fc_eventTag = la->eventTag; + if (phba->sli_rev < LPFC_SLI_REV4) { + spin_lock_irq(&phba->hbalock); + if (bf_get(lpfc_mbx_read_top_mm, la)) + phba->sli.sli_flag |= LPFC_MENLO_MAINT; + else + phba->sli.sli_flag &= ~LPFC_MENLO_MAINT; + spin_unlock_irq(&phba->hbalock); + } - if (la->attType == AT_LINK_UP) { + phba->link_events++; + if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) && + !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) { phba->fc_stat.LinkUp++; if (phba->link_flag & LS_LOOPBACK_MODE) { lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, "1306 Link Up Event in loop back mode " "x%x received Data: x%x x%x x%x x%x\n", la->eventTag, phba->fc_eventTag, - la->granted_AL_PA, la->UlnkSpeed, + bf_get(lpfc_mbx_read_top_alpa_granted, + la), + bf_get(lpfc_mbx_read_top_link_spd, la), phba->alpa_map[0]); } else { lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, "1303 Link Up Event x%x received " - "Data: x%x x%x x%x x%x\n", + "Data: x%x x%x x%x x%x x%x x%x %d\n", la->eventTag, phba->fc_eventTag, - la->granted_AL_PA, la->UlnkSpeed, - phba->alpa_map[0]); + bf_get(lpfc_mbx_read_top_alpa_granted, + la), + bf_get(lpfc_mbx_read_top_link_spd, la), + phba->alpa_map[0], + bf_get(lpfc_mbx_read_top_mm, la), + bf_get(lpfc_mbx_read_top_fa, la), + phba->wait_4_mlo_maint_flg); } lpfc_mbx_process_link_up(phba, la); - } else { + } else if (bf_get(lpfc_mbx_read_top_att_type, la) == + LPFC_ATT_LINK_DOWN) { phba->fc_stat.LinkDown++; - if (phba->link_flag & LS_LOOPBACK_MODE) { + if (phba->link_flag & LS_LOOPBACK_MODE) lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, "1308 Link Down Event in loop back mode " "x%x received " "Data: x%x x%x x%x\n", la->eventTag, phba->fc_eventTag, phba->pport->port_state, vport->fc_flag); - } - else { + else lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, "1305 Link Down Event x%x received " + "Data: x%x x%x x%x x%x x%x\n", + la->eventTag, phba->fc_eventTag, + phba->pport->port_state, vport->fc_flag, + bf_get(lpfc_mbx_read_top_mm, la), + bf_get(lpfc_mbx_read_top_fa, la)); + lpfc_mbx_issue_link_down(phba); + } + if ((phba->sli.sli_flag & LPFC_MENLO_MAINT) && + ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP))) { + if (phba->link_state != LPFC_LINK_DOWN) { + phba->fc_stat.LinkDown++; + lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, + "1312 Link Down Event x%x received " + "Data: x%x x%x x%x\n", + la->eventTag, phba->fc_eventTag, + phba->pport->port_state, vport->fc_flag); + lpfc_mbx_issue_link_down(phba); + } else + lpfc_enable_la(phba); + + lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, + "1310 Menlo Maint Mode Link up Event x%x rcvd " "Data: x%x x%x x%x\n", la->eventTag, phba->fc_eventTag, phba->pport->port_state, vport->fc_flag); + /* + * The cmnd that triggered this will be waiting for this + * signal. + */ + /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */ + if (phba->wait_4_mlo_maint_flg) { + phba->wait_4_mlo_maint_flg = 0; + wake_up_interruptible(&phba->wait_4_mlo_m_q); } - lpfc_mbx_issue_link_down(phba); } -lpfc_mbx_cmpl_read_la_free_mbuf: + if ((phba->sli_rev < LPFC_SLI_REV4) && + bf_get(lpfc_mbx_read_top_fa, la)) { + if (phba->sli.sli_flag & LPFC_MENLO_MAINT) + lpfc_issue_clear_la(phba, vport); + lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, + "1311 fa %d\n", + bf_get(lpfc_mbx_read_top_fa, la)); + } + +lpfc_mbx_cmpl_read_topology_free_mbuf: lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); mempool_free(pmb, phba->mbox_mem_pool); @@ -1175,11 +3409,32 @@ lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) struct lpfc_vport *vport = pmb->vport; struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); pmb->context1 = NULL; + pmb->context2 = NULL; + + if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) + ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; + + if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL || + ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) { + /* We rcvd a rscn after issuing this + * mbox reg login, we may have cycled + * back through the state and be + * back at reg login state so this + * mbox needs to be ignored becase + * there is another reg login in + * process. + */ + spin_lock_irq(shost->host_lock); + ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; + spin_unlock_irq(shost->host_lock); + } else + /* Good status, call state machine */ + lpfc_disc_state_machine(vport, ndlp, pmb, + NLP_EVT_CMPL_REG_LOGIN); - /* Good status, call state machine */ - lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN); lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); mempool_free(pmb, phba->mbox_mem_pool); @@ -1194,30 +3449,42 @@ lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) static void lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { - MAILBOX_t *mb = &pmb->mb; + MAILBOX_t *mb = &pmb->u.mb; struct lpfc_vport *vport = pmb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); switch (mb->mbxStatus) { case 0x0011: case 0x0020: - case 0x9700: lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, "0911 cmpl_unreg_vpi, mb status = 0x%x\n", mb->mbxStatus); break; + /* If VPI is busy, reset the HBA */ + case 0x9700: + lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, + "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n", + vport->vpi, mb->mbxStatus); + if (!(phba->pport->load_flag & FC_UNLOADING)) + lpfc_workq_post_event(phba, NULL, NULL, + LPFC_EVT_RESET_HBA); } + spin_lock_irq(shost->host_lock); + vport->vpi_state &= ~LPFC_VPI_REGISTERED; + vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; + spin_unlock_irq(shost->host_lock); vport->unreg_vpi_cmpl = VPORT_OK; mempool_free(pmb, phba->mbox_mem_pool); + lpfc_cleanup_vports_rrqs(vport, NULL); /* * This shost reference might have been taken at the beginning of * lpfc_vport_delete() */ - if (vport->load_flag & FC_UNLOADING) + if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport)) scsi_host_put(shost); } -void +int lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) { struct lpfc_hba *phba = vport->phba; @@ -1226,7 +3493,7 @@ lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) - return; + return 1; lpfc_unreg_vpi(phba, vport->vpi, mbox); mbox->vport = vport; @@ -1237,7 +3504,9 @@ lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) "1800 Could not issue unreg_vpi\n"); mempool_free(mbox, phba->mbox_mem_pool); vport->unreg_vpi_cmpl = VPORT_ERROR; + return rc; } + return 0; } static void @@ -1245,7 +3514,7 @@ lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_vport *vport = pmb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); - MAILBOX_t *mb = &pmb->mb; + MAILBOX_t *mb = &pmb->u.mb; switch (mb->mbxStatus) { case 0x0011: @@ -1262,6 +3531,10 @@ lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) goto out; } + spin_lock_irq(shost->host_lock); + vport->vpi_state |= LPFC_VPI_REGISTERED; + vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; + spin_unlock_irq(shost->host_lock); vport->num_disc_nodes = 0; /* go thru NPR list and issue ELS PLOGIs */ if (vport->fc_npr_cnt) @@ -1280,6 +3553,151 @@ out: return; } +/** + * lpfc_create_static_vport - Read HBA config region to create static vports. + * @phba: pointer to lpfc hba data structure. + * + * This routine issue a DUMP mailbox command for config region 22 to get + * the list of static vports to be created. The function create vports + * based on the information returned from the HBA. + **/ +void +lpfc_create_static_vport(struct lpfc_hba *phba) +{ + LPFC_MBOXQ_t *pmb = NULL; + MAILBOX_t *mb; + struct static_vport_info *vport_info; + int mbx_wait_rc = 0, i; + struct fc_vport_identifiers vport_id; + struct fc_vport *new_fc_vport; + struct Scsi_Host *shost; + struct lpfc_vport *vport; + uint16_t offset = 0; + uint8_t *vport_buff; + struct lpfc_dmabuf *mp; + uint32_t byte_count = 0; + + pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0542 lpfc_create_static_vport failed to" + " allocate mailbox memory\n"); + return; + } + memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); + mb = &pmb->u.mb; + + vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL); + if (!vport_info) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0543 lpfc_create_static_vport failed to" + " allocate vport_info\n"); + mempool_free(pmb, phba->mbox_mem_pool); + return; + } + + vport_buff = (uint8_t *) vport_info; + do { + /* free dma buffer from previous round */ + if (pmb->context1) { + mp = (struct lpfc_dmabuf *)pmb->context1; + lpfc_mbuf_free(phba, mp->virt, mp->phys); + kfree(mp); + } + if (lpfc_dump_static_vport(phba, pmb, offset)) + goto out; + + pmb->vport = phba->pport; + mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb, + LPFC_MBOX_TMO); + + if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0544 lpfc_create_static_vport failed to" + " issue dump mailbox command ret 0x%x " + "status 0x%x\n", + mbx_wait_rc, mb->mbxStatus); + goto out; + } + + if (phba->sli_rev == LPFC_SLI_REV4) { + byte_count = pmb->u.mqe.un.mb_words[5]; + mp = (struct lpfc_dmabuf *)pmb->context1; + if (byte_count > sizeof(struct static_vport_info) - + offset) + byte_count = sizeof(struct static_vport_info) + - offset; + memcpy(vport_buff + offset, mp->virt, byte_count); + offset += byte_count; + } else { + if (mb->un.varDmp.word_cnt > + sizeof(struct static_vport_info) - offset) + mb->un.varDmp.word_cnt = + sizeof(struct static_vport_info) + - offset; + byte_count = mb->un.varDmp.word_cnt; + lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, + vport_buff + offset, + byte_count); + + offset += byte_count; + } + + } while (byte_count && + offset < sizeof(struct static_vport_info)); + + + if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) || + ((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK) + != VPORT_INFO_REV)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0545 lpfc_create_static_vport bad" + " information header 0x%x 0x%x\n", + le32_to_cpu(vport_info->signature), + le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK); + + goto out; + } + + shost = lpfc_shost_from_vport(phba->pport); + + for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) { + memset(&vport_id, 0, sizeof(vport_id)); + vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn); + vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn); + if (!vport_id.port_name || !vport_id.node_name) + continue; + + vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; + vport_id.vport_type = FC_PORTTYPE_NPIV; + vport_id.disable = false; + new_fc_vport = fc_vport_create(shost, 0, &vport_id); + + if (!new_fc_vport) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0546 lpfc_create_static_vport failed to" + " create vport\n"); + continue; + } + + vport = *(struct lpfc_vport **)new_fc_vport->dd_data; + vport->vport_flag |= STATIC_VPORT; + } + +out: + kfree(vport_info); + if (mbx_wait_rc != MBX_TIMEOUT) { + if (pmb->context1) { + mp = (struct lpfc_dmabuf *)pmb->context1; + lpfc_mbuf_free(phba, mp->virt, mp->phys); + kfree(mp); + } + mempool_free(pmb, phba->mbox_mem_pool); + } + + return; +} + /* * This routine handles processing a Fabric REG_LOGIN mailbox * command upon completion. It is setup in the LPFC_MBOXQ @@ -1290,21 +3708,24 @@ void lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_vport *vport = pmb->vport; - MAILBOX_t *mb = &pmb->mb; + MAILBOX_t *mb = &pmb->u.mb; struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); struct lpfc_nodelist *ndlp; - struct lpfc_vport **vports; - int i; + struct Scsi_Host *shost; ndlp = (struct lpfc_nodelist *) pmb->context2; pmb->context1 = NULL; pmb->context2 = NULL; + if (mb->mbxStatus) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, + "0258 Register Fabric login error: 0x%x\n", + mb->mbxStatus); lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); mempool_free(pmb, phba->mbox_mem_pool); - if (phba->fc_topology == TOPOLOGY_LOOP) { + if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { /* FLOGI failed, use loop map to make discovery list */ lpfc_disc_list_loopmap(vport); @@ -1318,9 +3739,6 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) } lpfc_vport_set_state(vport, FC_VPORT_FAILED); - lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, - "0258 Register Fabric login error: 0x%x\n", - mb->mbxStatus); /* Decrement the reference count to ndlp after the reference * to the ndlp are done. */ @@ -1328,31 +3746,23 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) return; } - ndlp->nlp_rpi = mb->un.varWords[0]; + if (phba->sli_rev < LPFC_SLI_REV4) + ndlp->nlp_rpi = mb->un.varWords[0]; + ndlp->nlp_flag |= NLP_RPI_REGISTERED; ndlp->nlp_type |= NLP_FABRIC; lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); if (vport->port_state == LPFC_FABRIC_CFG_LINK) { - vports = lpfc_create_vport_work_array(phba); - if (vports != NULL) - for(i = 0; - i <= phba->max_vpi && vports[i] != NULL; - i++) { - if (vports[i]->port_type == LPFC_PHYSICAL_PORT) - continue; - if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) - lpfc_initial_fdisc(vports[i]); - else if (phba->sli3_options & - LPFC_SLI3_NPIV_ENABLED) { - lpfc_vport_set_state(vports[i], - FC_VPORT_NO_FABRIC_SUPP); - lpfc_printf_vlog(vport, KERN_ERR, - LOG_ELS, - "0259 No NPIV " - "Fabric support\n"); - } - } - lpfc_destroy_vport_work_array(phba, vports); + /* when physical port receive logo donot start + * vport discovery */ + if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) + lpfc_start_fdiscs(phba); + else { + shost = lpfc_shost_from_vport(vport); + spin_lock_irq(shost->host_lock); + vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ; + spin_unlock_irq(shost->host_lock); + } lpfc_do_scr_ns_plogi(phba, vport); } @@ -1376,13 +3786,19 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) void lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { - MAILBOX_t *mb = &pmb->mb; + MAILBOX_t *mb = &pmb->u.mb; struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; struct lpfc_vport *vport = pmb->vport; + pmb->context1 = NULL; + pmb->context2 = NULL; + if (mb->mbxStatus) { out: + lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, + "0260 Register NameServer error: 0x%x\n", + mb->mbxStatus); /* decrement the node reference count held for this * callback function. */ @@ -1394,7 +3810,7 @@ out: /* If no other thread is using the ndlp, free it */ lpfc_nlp_not_used(ndlp); - if (phba->fc_topology == TOPOLOGY_LOOP) { + if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { /* * RegLogin failed, use loop map to make discovery * list @@ -1406,15 +3822,12 @@ out: return; } lpfc_vport_set_state(vport, FC_VPORT_FAILED); - lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, - "0260 Register NameServer error: 0x%x\n", - mb->mbxStatus); return; } - pmb->context1 = NULL; - - ndlp->nlp_rpi = mb->un.varWords[0]; + if (phba->sli_rev < LPFC_SLI_REV4) + ndlp->nlp_rpi = mb->un.varWords[0]; + ndlp->nlp_flag |= NLP_RPI_REGISTERED; ndlp->nlp_type |= NLP_FABRIC; lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); @@ -1478,6 +3891,10 @@ lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) "rport add: did:x%x flg:x%x type x%x", ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); + /* Don't add the remote port if unloading. */ + if (vport->load_flag & FC_UNLOADING) + return; + ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids); if (!rport || !get_device(&rport->dev)) { dev_printk(KERN_WARNING, &phba->pcidev->dev, @@ -1496,10 +3913,13 @@ lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) if (ndlp->nlp_type & NLP_FCP_INITIATOR) rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR; - if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) fc_remote_port_rolechg(rport, rport_ids.roles); + lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, + "3183 rport register x%06x, rport %p role x%x\n", + ndlp->nlp_DID, rport, rport_ids.roles); + if ((rport->scsi_target_id != -1) && (rport->scsi_target_id < LPFC_MAX_TARGET)) { ndlp->nlp_sid = rport->scsi_target_id; @@ -1516,6 +3936,10 @@ lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp) "rport delete: did:x%x flg:x%x type x%x", ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); + lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, + "3184 rport unregister x%06x, rport %p\n", + ndlp->nlp_DID, rport); + fc_remote_port_delete(rport); return; @@ -1550,7 +3974,10 @@ lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count) vport->fc_map_cnt += count; break; case NLP_STE_NPR_NODE: - vport->fc_npr_cnt += count; + if (vport->fc_npr_cnt == 0 && count == -1) + vport->fc_npr_cnt = 0; + else + vport->fc_npr_cnt += count; break; } spin_unlock_irq(shost->host_lock); @@ -1563,7 +3990,6 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (new_state == NLP_STE_UNMAPPED_NODE) { - ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); ndlp->nlp_flag &= ~NLP_NODEV_REMOVE; ndlp->nlp_type |= NLP_FC_NODE; } @@ -1589,6 +4015,22 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, */ lpfc_register_remote_port(vport, ndlp); } + if ((new_state == NLP_STE_MAPPED_NODE) && + (vport->stat_data_enabled)) { + /* + * A new target is discovered, if there is no buffer for + * statistical data collection allocate buffer. + */ + ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, + sizeof(struct lpfc_scsicmd_bkt), + GFP_KERNEL); + + if (!ndlp->lat_data) + lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, + "0286 lpfc_nlp_state_cleanup failed to " + "allocate statistical data buffer DID " + "0x%x\n", ndlp->nlp_DID); + } /* * if we added to Mapped list, but the remote port * registration failed or assigned a target id outside @@ -1615,6 +4057,7 @@ lpfc_nlp_state_name(char *buffer, size_t size, int state) [NLP_STE_ADISC_ISSUE] = "ADISC", [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN", [NLP_STE_PRLI_ISSUE] = "PRLI", + [NLP_STE_LOGO_ISSUE] = "LOGO", [NLP_STE_UNMAPPED_NODE] = "UNMAPPED", [NLP_STE_MAPPED_NODE] = "MAPPED", [NLP_STE_NPR_NODE] = "NPR", @@ -1646,7 +4089,6 @@ lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp->nlp_DID, old_state, state); if (old_state == NLP_STE_NPR_NODE && - (ndlp->nlp_flag & NLP_DELAY_TMO) != 0 && state != NLP_STE_NPR_NODE) lpfc_cancel_retry_delay_tmo(vport, ndlp); if (old_state == NLP_STE_UNMAPPED_NODE) { @@ -1683,8 +4125,7 @@ lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); - if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0) - lpfc_cancel_retry_delay_tmo(vport, ndlp); + lpfc_cancel_retry_delay_tmo(vport, ndlp); if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) lpfc_nlp_counters(vport, ndlp->nlp_state, -1); spin_lock_irq(shost->host_lock); @@ -1697,13 +4138,44 @@ lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) static void lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) { - if ((ndlp->nlp_flag & NLP_DELAY_TMO) != 0) - lpfc_cancel_retry_delay_tmo(vport, ndlp); + lpfc_cancel_retry_delay_tmo(vport, ndlp); if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp)) lpfc_nlp_counters(vport, ndlp->nlp_state, -1); lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, NLP_STE_UNUSED_NODE); } +/** + * lpfc_initialize_node - Initialize all fields of node object + * @vport: Pointer to Virtual Port object. + * @ndlp: Pointer to FC node object. + * @did: FC_ID of the node. + * + * This function is always called when node object need to be initialized. + * It initializes all the fields of the node object. Although the reference + * to phba from @ndlp can be obtained indirectly through it's reference to + * @vport, a direct reference to phba is taken here by @ndlp. This is due + * to the life-span of the @ndlp might go beyond the existence of @vport as + * the final release of ndlp is determined by its reference count. And, the + * operation on @ndlp needs the reference to phba. + **/ +static inline void +lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, + uint32_t did) +{ + INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); + INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); + init_timer(&ndlp->nlp_delayfunc); + ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; + ndlp->nlp_delayfunc.data = (unsigned long)ndlp; + ndlp->nlp_DID = did; + ndlp->vport = vport; + ndlp->phba = vport->phba; + ndlp->nlp_sid = NLP_NO_SID; + kref_init(&ndlp->kref); + NLP_INT_NODE_ACT(ndlp); + atomic_set(&ndlp->cmd_pending, 0); + ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; +} struct lpfc_nodelist * lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, @@ -1712,6 +4184,7 @@ lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct lpfc_hba *phba = vport->phba; uint32_t did; unsigned long flags; + unsigned long *active_rrqs_xri_bitmap = NULL; if (!ndlp) return NULL; @@ -1740,23 +4213,21 @@ lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, /* Keep the original DID */ did = ndlp->nlp_DID; + if (phba->sli_rev == LPFC_SLI_REV4) + active_rrqs_xri_bitmap = ndlp->active_rrqs_xri_bitmap; /* re-initialize ndlp except of ndlp linked list pointer */ memset((((char *)ndlp) + sizeof (struct list_head)), 0, sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); - INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); - INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); - init_timer(&ndlp->nlp_delayfunc); - ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; - ndlp->nlp_delayfunc.data = (unsigned long)ndlp; - ndlp->nlp_DID = did; - ndlp->vport = vport; - ndlp->nlp_sid = NLP_NO_SID; - /* ndlp management re-initialize */ - kref_init(&ndlp->kref); - NLP_INT_NODE_ACT(ndlp); + lpfc_initialize_node(vport, ndlp, did); + + if (phba->sli_rev == LPFC_SLI_REV4) + ndlp->active_rrqs_xri_bitmap = active_rrqs_xri_bitmap; spin_unlock_irqrestore(&phba->ndlp_lock, flags); + if (vport->phba->sli_rev == LPFC_SLI_REV4) + ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); + if (state != NLP_STE_UNUSED_NODE) lpfc_nlp_set_state(vport, ndlp, state); @@ -1780,6 +4251,8 @@ lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) return; lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); + if (vport->phba->sli_rev == LPFC_SLI_REV4) + lpfc_cleanup_vports_rrqs(vport, ndlp); lpfc_nlp_put(ndlp); return; } @@ -1795,10 +4268,10 @@ lpfc_set_disctmo(struct lpfc_vport *vport) uint32_t tmo; if (vport->port_state == LPFC_LOCAL_CFG_LINK) { - /* For FAN, timeout should be greater then edtov */ + /* For FAN, timeout should be greater than edtov */ tmo = (((phba->fc_edtov + 999) / 1000) + 1); } else { - /* Normal discovery timeout should be > then ELS/CT timeout + /* Normal discovery timeout should be > than ELS/CT timeout * FC spec states we need 3 * ratov for CT requests */ tmo = ((phba->fc_ratov * 3) + 3); @@ -1811,7 +4284,7 @@ lpfc_set_disctmo(struct lpfc_vport *vport) tmo, vport->port_state, vport->fc_flag); } - mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo); + mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo)); spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_DISC_TMO; spin_unlock_irq(shost->host_lock); @@ -1880,7 +4353,7 @@ lpfc_check_sli_ndlp(struct lpfc_hba *phba, if (pring->ringno == LPFC_ELS_RING) { switch (icmd->ulpCommand) { case CMD_GEN_REQUEST64_CR: - if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) + if (iocb->context_un.ndlp == ndlp) return 1; case CMD_ELS_REQUEST64_CR: if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID) @@ -1917,8 +4390,7 @@ lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) struct lpfc_sli *psli; struct lpfc_sli_ring *pring; struct lpfc_iocbq *iocb, *next_iocb; - IOCB_t *icmd; - uint32_t rpi, i; + uint32_t i; lpfc_fabric_abort_nport(ndlp); @@ -1927,8 +4399,7 @@ lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) * by firmware with a no rpi error. */ psli = &phba->sli; - rpi = ndlp->nlp_rpi; - if (rpi) { + if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { /* Now process each ring */ for (i = 0; i < psli->num_rings; i++) { pring = &psli->ring[i]; @@ -1946,30 +4417,40 @@ lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) with an error */ list_move_tail(&iocb->list, &completions); - pring->txq_cnt--; } } spin_unlock_irq(&phba->hbalock); } } - while (!list_empty(&completions)) { - iocb = list_get_first(&completions, struct lpfc_iocbq, list); - list_del_init(&iocb->list); - - if (!iocb->iocb_cmpl) - lpfc_sli_release_iocbq(phba, iocb); - else { - icmd = &iocb->iocb; - icmd->ulpStatus = IOSTAT_LOCAL_REJECT; - icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; - (iocb->iocb_cmpl)(phba, iocb, iocb); - } - } + /* Cancel all the IOCBs from the completions list */ + lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, + IOERR_SLI_ABORTED); return 0; } +/** + * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO + * @phba: Pointer to HBA context object. + * @pmb: Pointer to mailbox object. + * + * This function will issue an ELS LOGO command after completing + * the UNREG_RPI. + **/ +void +lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) +{ + struct lpfc_vport *vport = pmb->vport; + struct lpfc_nodelist *ndlp; + + ndlp = (struct lpfc_nodelist *)(pmb->context1); + if (!ndlp) + return; + lpfc_issue_els_logo(vport, ndlp, 0); + mempool_free(pmb, phba->mbox_mem_pool); +} + /* * Free rpi associated with LPFC_NODELIST entry. * This routine is called from lpfc_freenode(), when we are removing @@ -1985,24 +4466,85 @@ lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) struct lpfc_hba *phba = vport->phba; LPFC_MBOXQ_t *mbox; int rc; - - if (ndlp->nlp_rpi) { + uint16_t rpi; + + if (ndlp->nlp_flag & NLP_RPI_REGISTERED || + ndlp->nlp_flag & NLP_REG_LOGIN_SEND) { + if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) + lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, + "3366 RPI x%x needs to be " + "unregistered nlp_flag x%x " + "did x%x\n", + ndlp->nlp_rpi, ndlp->nlp_flag, + ndlp->nlp_DID); mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mbox) { - lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox); + /* SLI4 ports require the physical rpi value. */ + rpi = ndlp->nlp_rpi; + if (phba->sli_rev == LPFC_SLI_REV4) + rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; + + lpfc_unreg_login(phba, vport->vpi, rpi, mbox); mbox->vport = vport; - mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + if (ndlp->nlp_flag & NLP_ISSUE_LOGO) { + mbox->context1 = ndlp; + mbox->mbox_cmpl = lpfc_nlp_logo_unreg; + } else { + mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + } + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) mempool_free(mbox, phba->mbox_mem_pool); } lpfc_no_rpi(phba, ndlp); - ndlp->nlp_rpi = 0; + + if (phba->sli_rev != LPFC_SLI_REV4) + ndlp->nlp_rpi = 0; + ndlp->nlp_flag &= ~NLP_RPI_REGISTERED; + ndlp->nlp_flag &= ~NLP_NPR_ADISC; return 1; } return 0; } +/** + * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to unregister all the currently registered RPIs + * to the HBA. + **/ +void +lpfc_unreg_hba_rpis(struct lpfc_hba *phba) +{ + struct lpfc_vport **vports; + struct lpfc_nodelist *ndlp; + struct Scsi_Host *shost; + int i; + + vports = lpfc_create_vport_work_array(phba); + if (!vports) { + lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, + "2884 Vport array allocation failed \n"); + return; + } + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + shost = lpfc_shost_from_vport(vports[i]); + spin_lock_irq(shost->host_lock); + list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { + if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { + /* The mempool_alloc might sleep */ + spin_unlock_irq(shost->host_lock); + lpfc_unreg_rpi(vports[i], ndlp); + spin_lock_irq(shost->host_lock); + } + } + spin_unlock_irq(shost->host_lock); + } + lpfc_destroy_vport_work_array(phba, vports); +} + void lpfc_unreg_all_rpis(struct lpfc_vport *vport) { @@ -2010,16 +4552,26 @@ lpfc_unreg_all_rpis(struct lpfc_vport *vport) LPFC_MBOXQ_t *mbox; int rc; + if (phba->sli_rev == LPFC_SLI_REV4) { + lpfc_sli4_unreg_all_rpis(vport); + return; + } + mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mbox) { - lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox); + lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT, + mbox); mbox->vport = vport; mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->context1 = NULL; rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); - if (rc == MBX_NOT_FINISHED) { + if (rc != MBX_TIMEOUT) mempool_free(mbox, phba->mbox_mem_pool); - } + + if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) + lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, + "1836 Could not issue " + "unreg_login(all_rpis) status %d\n", rc); } } @@ -2032,17 +4584,20 @@ lpfc_unreg_default_rpis(struct lpfc_vport *vport) mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mbox) { - lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox); + lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, + mbox); mbox->vport = vport; mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->context1 = NULL; rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); - if (rc == MBX_NOT_FINISHED) { + if (rc != MBX_TIMEOUT) + mempool_free(mbox, phba->mbox_mem_pool); + + if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED)) lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT, "1815 Could not issue " - "unreg_did (default rpis)\n"); - mempool_free(mbox, phba->mbox_mem_pool); - } + "unreg_did (default rpis) status %d\n", + rc); } } @@ -2080,9 +4635,13 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) lpfc_disable_node(vport, ndlp); } + + /* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */ + /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ if ((mb = phba->sli.mbox_active)) { - if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && + if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && + !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && (ndlp == (struct lpfc_nodelist *) mb->context2)) { mb->context2 = NULL; mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; @@ -2090,8 +4649,20 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) } spin_lock_irq(&phba->hbalock); + /* Cleanup REG_LOGIN completions which are not yet processed */ + list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) { + if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) || + (mb->mbox_flag & LPFC_MBX_IMED_UNREG) || + (ndlp != (struct lpfc_nodelist *) mb->context2)) + continue; + + mb->context2 = NULL; + mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + } + list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { - if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && + if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && + !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) && (ndlp == (struct lpfc_nodelist *) mb->context2)) { mp = (struct lpfc_dmabuf *) (mb->context1); if (mp) { @@ -2117,11 +4688,9 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) ndlp->nlp_last_elscmd = 0; del_timer_sync(&ndlp->nlp_delayfunc); - if (!list_empty(&ndlp->els_retry_evt.evt_listp)) - list_del_init(&ndlp->els_retry_evt.evt_listp); - if (!list_empty(&ndlp->dev_loss_evt.evt_listp)) - list_del_init(&ndlp->dev_loss_evt.evt_listp); - + list_del_init(&ndlp->els_retry_evt.evt_listp); + list_del_init(&ndlp->dev_loss_evt.evt_listp); + lpfc_cleanup_vports_rrqs(vport, ndlp); lpfc_unreg_rpi(vport, ndlp); return 0; @@ -2140,18 +4709,17 @@ lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) LPFC_MBOXQ_t *mbox; int rc; - if (ndlp->nlp_flag & NLP_DELAY_TMO) { - lpfc_cancel_retry_delay_tmo(vport, ndlp); - } - - if (ndlp->nlp_flag & NLP_DEFER_RM && !ndlp->nlp_rpi) { + lpfc_cancel_retry_delay_tmo(vport, ndlp); + if ((ndlp->nlp_flag & NLP_DEFER_RM) && + !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) && + !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { /* For this case we need to cleanup the default rpi * allocated by the firmware. */ if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) { - rc = lpfc_reg_login(phba, vport->vpi, ndlp->nlp_DID, - (uint8_t *) &vport->fc_sparam, mbox, 0); + rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID, + (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi); if (rc) { mempool_free(mbox, phba->mbox_mem_pool); } @@ -2159,7 +4727,7 @@ lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; mbox->vport = vport; - mbox->context2 = NULL; + mbox->context2 = ndlp; rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); @@ -2190,10 +4758,6 @@ lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, if (did == Bcast_DID) return 0; - if (ndlp->nlp_DID == 0) { - return 0; - } - /* First check for Direct match */ if (ndlp->nlp_DID == did) return 1; @@ -2245,9 +4809,10 @@ __lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) ((uint32_t) ndlp->nlp_rpi & 0xff)); lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, "0929 FIND node DID " - "Data: x%p x%x x%x x%x\n", + "Data: x%p x%x x%x x%x %p\n", ndlp, ndlp->nlp_DID, - ndlp->nlp_flag, data1); + ndlp->nlp_flag, data1, + ndlp->active_rrqs_xri_bitmap); return ndlp; } } @@ -2263,10 +4828,11 @@ lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_nodelist *ndlp; + unsigned long iflags; - spin_lock_irq(shost->host_lock); + spin_lock_irqsave(shost->host_lock, iflags); ndlp = __lpfc_findnode_did(vport, did); - spin_unlock_irq(shost->host_lock); + spin_unlock_irqrestore(shost->host_lock, iflags); return ndlp; } @@ -2301,27 +4867,26 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) return ndlp; } - if (vport->fc_flag & FC_RSCN_MODE) { + if ((vport->fc_flag & FC_RSCN_MODE) && + !(vport->fc_flag & FC_NDISC_ACTIVE)) { if (lpfc_rscn_payload_check(vport, did)) { - /* If we've already recieved a PLOGI from this NPort + /* If we've already received a PLOGI from this NPort * we don't need to try to discover it again. */ if (ndlp->nlp_flag & NLP_RCV_PLOGI) return NULL; - spin_lock_irq(shost->host_lock); - ndlp->nlp_flag |= NLP_NPR_2B_DISC; - spin_unlock_irq(shost->host_lock); - /* Since this node is marked for discovery, * delay timeout is not needed. */ - if (ndlp->nlp_flag & NLP_DELAY_TMO) - lpfc_cancel_retry_delay_tmo(vport, ndlp); + lpfc_cancel_retry_delay_tmo(vport, ndlp); + spin_lock_irq(shost->host_lock); + ndlp->nlp_flag |= NLP_NPR_2B_DISC; + spin_unlock_irq(shost->host_lock); } else ndlp = NULL; } else { - /* If we've already recieved a PLOGI from this NPort, + /* If we've already received a PLOGI from this NPort, * or we are already in the process of discovery on it, * we don't need to try to discover it again. */ @@ -2348,7 +4913,7 @@ lpfc_disc_list_loopmap(struct lpfc_vport *vport) if (!lpfc_is_link_up(phba)) return; - if (phba->fc_topology != TOPOLOGY_LOOP) + if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) return; /* Check for loop map present or not */ @@ -2393,7 +4958,8 @@ lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport) * clear_la then don't send it. */ if ((phba->link_state >= LPFC_CLEAR_LA) || - (vport->port_type != LPFC_PHYSICAL_PORT)) + (vport->port_type != LPFC_PHYSICAL_PORT) || + (phba->sli_rev == LPFC_SLI_REV4)) return; /* Link up discovery */ @@ -2422,7 +4988,7 @@ lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport) regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (regvpimbox) { - lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox); + lpfc_reg_vpi(vport, regvpimbox); regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi; regvpimbox->vport = vport; if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT) @@ -2442,8 +5008,12 @@ lpfc_disc_start(struct lpfc_vport *vport) uint32_t clear_la_pending; int did_changed; - if (!lpfc_is_link_up(phba)) + if (!lpfc_is_link_up(phba)) { + lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, + "3315 Link is not up %x\n", + phba->link_state); return; + } if (phba->link_state == LPFC_CLEAR_LA) clear_la_pending = 1; @@ -2476,13 +5046,13 @@ lpfc_disc_start(struct lpfc_vport *vport) if (num_sent) return; - /* - * For SLI3, cmpl_reg_vpi will set port_state to READY, and - * continue discovery. - */ + /* Register the VPI for SLI3, NPIV only. */ if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && !(vport->fc_flag & FC_PT2PT) && - !(vport->fc_flag & FC_RSCN_MODE)) { + !(vport->fc_flag & FC_RSCN_MODE) && + (phba->sli_rev < LPFC_SLI_REV4)) { + if (vport->port_type == LPFC_PHYSICAL_PORT) + lpfc_issue_clear_la(phba, vport); lpfc_issue_reg_vpi(phba, vport); return; } @@ -2563,7 +5133,6 @@ lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) { list_move_tail(&iocb->list, &completions); - pring->txq_cnt--; } } @@ -2580,19 +5149,9 @@ lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) } spin_unlock_irq(&phba->hbalock); - while (!list_empty(&completions)) { - iocb = list_get_first(&completions, struct lpfc_iocbq, list); - list_del_init(&iocb->list); - - if (!iocb->iocb_cmpl) - lpfc_sli_release_iocbq(phba, iocb); - else { - icmd = &iocb->iocb; - icmd->ulpStatus = IOSTAT_LOCAL_REJECT; - icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; - (iocb->iocb_cmpl) (phba, iocb, iocb); - } - } + /* Cancel all the IOCBs from the completions list */ + lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, + IOERR_SLI_ABORTED); } static void @@ -2642,21 +5201,20 @@ lpfc_disc_timeout(unsigned long ptr) { struct lpfc_vport *vport = (struct lpfc_vport *) ptr; struct lpfc_hba *phba = vport->phba; + uint32_t tmo_posted; unsigned long flags = 0; if (unlikely(!phba)) return; - if ((vport->work_port_events & WORKER_DISC_TMO) == 0) { - spin_lock_irqsave(&vport->work_port_lock, flags); + spin_lock_irqsave(&vport->work_port_lock, flags); + tmo_posted = vport->work_port_events & WORKER_DISC_TMO; + if (!tmo_posted) vport->work_port_events |= WORKER_DISC_TMO; - spin_unlock_irqrestore(&vport->work_port_lock, flags); + spin_unlock_irqrestore(&vport->work_port_lock, flags); - spin_lock_irqsave(&phba->hbalock, flags); - if (phba->work_wait) - lpfc_worker_wake_up(phba); - spin_unlock_irqrestore(&phba->hbalock, flags); - } + if (!tmo_posted) + lpfc_worker_wake_up(phba); return; } @@ -2709,7 +5267,10 @@ lpfc_disc_timeout_handler(struct lpfc_vport *vport) } } if (vport->port_state != LPFC_FLOGI) { - lpfc_initial_flogi(vport); + if (phba->sli_rev <= LPFC_SLI_REV3) + lpfc_initial_flogi(vport); + else + lpfc_issue_init_vfi(vport); return; } break; @@ -2770,11 +5331,13 @@ restart_disc: * set port_state to PORT_READY if SLI2. * cmpl_reg_vpi will set port_state to READY for SLI3. */ - if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) - lpfc_issue_reg_vpi(phba, vport); - else { /* NPIV Not enabled */ - lpfc_issue_clear_la(phba, vport); - vport->port_state = LPFC_VPORT_READY; + if (phba->sli_rev < LPFC_SLI_REV4) { + if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) + lpfc_issue_reg_vpi(phba, vport); + else { + lpfc_issue_clear_la(phba, vport); + vport->port_state = LPFC_VPORT_READY; + } } /* Setup and issue mailbox INITIALIZE LINK command */ @@ -2790,7 +5353,7 @@ restart_disc: lpfc_linkdown(phba); lpfc_init_link(phba, initlinkmbox, phba->cfg_topology, phba->cfg_link_speed); - initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0; + initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; initlinkmbox->vport = vport; initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT); @@ -2810,11 +5373,13 @@ restart_disc: * set port_state to PORT_READY if SLI2. * cmpl_reg_vpi will set port_state to READY for SLI3. */ - if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) - lpfc_issue_reg_vpi(phba, vport); - else { /* NPIV Not enabled */ - lpfc_issue_clear_la(phba, vport); - vport->port_state = LPFC_VPORT_READY; + if (phba->sli_rev < LPFC_SLI_REV4) { + if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) + lpfc_issue_reg_vpi(phba, vport); + else { /* NPIV Not enabled */ + lpfc_issue_clear_la(phba, vport); + vport->port_state = LPFC_VPORT_READY; + } } break; @@ -2835,7 +5400,7 @@ restart_disc: default: lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, - "0229 Unexpected discovery timeout, " + "0273 Unexpected discovery timeout, " "vport State x%x\n", vport->port_state); break; } @@ -2887,14 +5452,17 @@ restart_disc: void lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { - MAILBOX_t *mb = &pmb->mb; + MAILBOX_t *mb = &pmb->u.mb; struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; struct lpfc_vport *vport = pmb->vport; pmb->context1 = NULL; + pmb->context2 = NULL; - ndlp->nlp_rpi = mb->un.varWords[0]; + if (phba->sli_rev < LPFC_SLI_REV4) + ndlp->nlp_rpi = mb->un.varWords[0]; + ndlp->nlp_flag |= NLP_RPI_REGISTERED; ndlp->nlp_type |= NLP_FABRIC; lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); @@ -2907,7 +5475,8 @@ lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) if (vport->cfg_fdmi_on == 1) lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA); else - mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60); + mod_timer(&vport->fc_fdmitmo, + jiffies + msecs_to_jiffies(1000 * 60)); /* decrement the node reference count held for this callback * function. @@ -2925,6 +5494,10 @@ lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param) { uint16_t *rpi = param; + /* check for active node */ + if (!NLP_CHK_NODE_ACT(ndlp)) + return 0; + return ndlp->nlp_rpi == *rpi; } @@ -2941,30 +5514,20 @@ __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) struct lpfc_nodelist *ndlp; list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { - if (filter(ndlp, param)) + if (filter(ndlp, param)) { + lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, + "3185 FIND node filter %p DID " + "Data: x%p x%x x%x\n", + filter, ndlp, ndlp->nlp_DID, + ndlp->nlp_flag); return ndlp; + } } + lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE, + "3186 FIND node filter %p NOT FOUND.\n", filter); return NULL; } -#if 0 -/* - * Search node lists for a remote port matching filter criteria - * Caller needs to hold host_lock before calling this routine. - */ -struct lpfc_nodelist * -lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param) -{ - struct Scsi_Host *shost = lpfc_shost_from_vport(vport); - struct lpfc_nodelist *ndlp; - - spin_lock_irq(shost->host_lock); - ndlp = __lpfc_find_node(vport, filter, param); - spin_unlock_irq(shost->host_lock); - return ndlp; -} -#endif /* 0 */ - /* * This routine looks up the ndlp lists for the given RPI. If rpi found it * returns the node list element pointer else return NULL. @@ -2975,52 +5538,108 @@ __lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi); } -#if 0 +/* + * This routine looks up the ndlp lists for the given WWPN. If WWPN found it + * returns the node element list pointer else return NULL. + */ struct lpfc_nodelist * -lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) +lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_nodelist *ndlp; spin_lock_irq(shost->host_lock); - ndlp = __lpfc_findnode_rpi(vport, rpi); + ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); spin_unlock_irq(shost->host_lock); return ndlp; } -#endif /* 0 */ /* - * This routine looks up the ndlp lists for the given WWPN. If WWPN found it - * returns the node element list pointer else return NULL. + * This routine looks up the ndlp lists for the given RPI. If the rpi + * is found, the routine returns the node element list pointer else + * return NULL. */ struct lpfc_nodelist * -lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn) +lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_nodelist *ndlp; spin_lock_irq(shost->host_lock); - ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn); + ndlp = __lpfc_findnode_rpi(vport, rpi); spin_unlock_irq(shost->host_lock); return ndlp; } +/** + * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier + * @phba: pointer to lpfc hba data structure. + * @vpi: the physical host virtual N_Port identifier. + * + * This routine finds a vport on a HBA (referred by @phba) through a + * @vpi. The function walks the HBA's vport list and returns the address + * of the vport with the matching @vpi. + * + * Return code + * NULL - No vport with the matching @vpi found + * Otherwise - Address to the vport with the matching @vpi. + **/ +struct lpfc_vport * +lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) +{ + struct lpfc_vport *vport; + unsigned long flags; + int i = 0; + + /* The physical ports are always vpi 0 - translate is unnecessary. */ + if (vpi > 0) { + /* + * Translate the physical vpi to the logical vpi. The + * vport stores the logical vpi. + */ + for (i = 0; i < phba->max_vpi; i++) { + if (vpi == phba->vpi_ids[i]) + break; + } + + if (i >= phba->max_vpi) { + lpfc_printf_log(phba, KERN_ERR, LOG_ELS, + "2936 Could not find Vport mapped " + "to vpi %d\n", vpi); + return NULL; + } + } + + spin_lock_irqsave(&phba->hbalock, flags); + list_for_each_entry(vport, &phba->port_list, listentry) { + if (vport->vpi == i) { + spin_unlock_irqrestore(&phba->hbalock, flags); + return vport; + } + } + spin_unlock_irqrestore(&phba->hbalock, flags); + return NULL; +} + void lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint32_t did) { memset(ndlp, 0, sizeof (struct lpfc_nodelist)); - INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); - INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); - init_timer(&ndlp->nlp_delayfunc); - ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; - ndlp->nlp_delayfunc.data = (unsigned long)ndlp; - ndlp->nlp_DID = did; - ndlp->vport = vport; - ndlp->nlp_sid = NLP_NO_SID; + + lpfc_initialize_node(vport, ndlp, did); INIT_LIST_HEAD(&ndlp->nlp_listp); - kref_init(&ndlp->kref); - NLP_INT_NODE_ACT(ndlp); + if (vport->phba->sli_rev == LPFC_SLI_REV4) { + ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba); + ndlp->active_rrqs_xri_bitmap = + mempool_alloc(vport->phba->active_rrq_pool, + GFP_KERNEL); + if (ndlp->active_rrqs_xri_bitmap) + memset(ndlp->active_rrqs_xri_bitmap, 0, + ndlp->phba->cfg_rrq_xri_bitmap_sz); + } + + lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, "node init: did:x%x", @@ -3045,23 +5664,30 @@ lpfc_nlp_release(struct kref *kref) ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type); lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, - "0279 lpfc_nlp_release: ndlp:x%p " + "0279 lpfc_nlp_release: ndlp:x%p did %x " "usgmap:x%x refcnt:%d\n", - (void *)ndlp, ndlp->nlp_usg_map, + (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map, atomic_read(&ndlp->kref.refcount)); /* remove ndlp from action. */ lpfc_nlp_remove(ndlp->vport, ndlp); /* clear the ndlp active flag for all release cases */ - phba = ndlp->vport->phba; + phba = ndlp->phba; spin_lock_irqsave(&phba->ndlp_lock, flags); NLP_CLR_NODE_ACT(ndlp); spin_unlock_irqrestore(&phba->ndlp_lock, flags); + if (phba->sli_rev == LPFC_SLI_REV4) + lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); /* free ndlp memory for final ndlp release */ - if (NLP_CHK_FREE_REQ(ndlp)) - mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool); + if (NLP_CHK_FREE_REQ(ndlp)) { + kfree(ndlp->lat_data); + if (phba->sli_rev == LPFC_SLI_REV4) + mempool_free(ndlp->active_rrqs_xri_bitmap, + ndlp->phba->active_rrq_pool); + mempool_free(ndlp, ndlp->phba->nlp_mem_pool); + } } /* This routine bumps the reference count for a ndlp structure to ensure @@ -3083,7 +5709,7 @@ lpfc_nlp_get(struct lpfc_nodelist *ndlp) * ndlp reference count that is in the process of being * released. */ - phba = ndlp->vport->phba; + phba = ndlp->phba; spin_lock_irqsave(&phba->ndlp_lock, flags); if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) { spin_unlock_irqrestore(&phba->ndlp_lock, flags); @@ -3119,7 +5745,7 @@ lpfc_nlp_put(struct lpfc_nodelist *ndlp) "node put: did:x%x flg:x%x refcnt:x%x", ndlp->nlp_DID, ndlp->nlp_flag, atomic_read(&ndlp->kref.refcount)); - phba = ndlp->vport->phba; + phba = ndlp->phba; spin_lock_irqsave(&phba->ndlp_lock, flags); /* Check the ndlp memory free acknowledge flag to avoid the * possible race condition that kref_put got invoked again @@ -3186,3 +5812,551 @@ lpfc_nlp_not_used(struct lpfc_nodelist *ndlp) return 1; return 0; } + +/** + * lpfc_fcf_inuse - Check if FCF can be unregistered. + * @phba: Pointer to hba context object. + * + * This function iterate through all FC nodes associated + * will all vports to check if there is any node with + * fc_rports associated with it. If there is an fc_rport + * associated with the node, then the node is either in + * discovered state or its devloss_timer is pending. + */ +static int +lpfc_fcf_inuse(struct lpfc_hba *phba) +{ + struct lpfc_vport **vports; + int i, ret = 0; + struct lpfc_nodelist *ndlp; + struct Scsi_Host *shost; + + vports = lpfc_create_vport_work_array(phba); + + /* If driver cannot allocate memory, indicate fcf is in use */ + if (!vports) + return 1; + + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + shost = lpfc_shost_from_vport(vports[i]); + spin_lock_irq(shost->host_lock); + /* + * IF the CVL_RCVD bit is not set then we have sent the + * flogi. + * If dev_loss fires while we are waiting we do not want to + * unreg the fcf. + */ + if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) { + spin_unlock_irq(shost->host_lock); + ret = 1; + goto out; + } + list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) { + if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport && + (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { + ret = 1; + spin_unlock_irq(shost->host_lock); + goto out; + } else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { + ret = 1; + lpfc_printf_log(phba, KERN_INFO, LOG_ELS, + "2624 RPI %x DID %x flag %x " + "still logged in\n", + ndlp->nlp_rpi, ndlp->nlp_DID, + ndlp->nlp_flag); + } + } + spin_unlock_irq(shost->host_lock); + } +out: + lpfc_destroy_vport_work_array(phba, vports); + return ret; +} + +/** + * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi. + * @phba: Pointer to hba context object. + * @mboxq: Pointer to mailbox object. + * + * This function frees memory associated with the mailbox command. + */ +void +lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) +{ + struct lpfc_vport *vport = mboxq->vport; + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + + if (mboxq->u.mb.mbxStatus) { + lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, + "2555 UNREG_VFI mbxStatus error x%x " + "HBA state x%x\n", + mboxq->u.mb.mbxStatus, vport->port_state); + } + spin_lock_irq(shost->host_lock); + phba->pport->fc_flag &= ~FC_VFI_REGISTERED; + spin_unlock_irq(shost->host_lock); + mempool_free(mboxq, phba->mbox_mem_pool); + return; +} + +/** + * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi. + * @phba: Pointer to hba context object. + * @mboxq: Pointer to mailbox object. + * + * This function frees memory associated with the mailbox command. + */ +static void +lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) +{ + struct lpfc_vport *vport = mboxq->vport; + + if (mboxq->u.mb.mbxStatus) { + lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, + "2550 UNREG_FCFI mbxStatus error x%x " + "HBA state x%x\n", + mboxq->u.mb.mbxStatus, vport->port_state); + } + mempool_free(mboxq, phba->mbox_mem_pool); + return; +} + +/** + * lpfc_unregister_fcf_prep - Unregister fcf record preparation + * @phba: Pointer to hba context object. + * + * This function prepare the HBA for unregistering the currently registered + * FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and + * VFIs. + */ +int +lpfc_unregister_fcf_prep(struct lpfc_hba *phba) +{ + struct lpfc_vport **vports; + struct lpfc_nodelist *ndlp; + struct Scsi_Host *shost; + int i = 0, rc; + + /* Unregister RPIs */ + if (lpfc_fcf_inuse(phba)) + lpfc_unreg_hba_rpis(phba); + + /* At this point, all discovery is aborted */ + phba->pport->port_state = LPFC_VPORT_UNKNOWN; + + /* Unregister VPIs */ + vports = lpfc_create_vport_work_array(phba); + if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + /* Stop FLOGI/FDISC retries */ + ndlp = lpfc_findnode_did(vports[i], Fabric_DID); + if (ndlp) + lpfc_cancel_retry_delay_tmo(vports[i], ndlp); + lpfc_cleanup_pending_mbox(vports[i]); + if (phba->sli_rev == LPFC_SLI_REV4) + lpfc_sli4_unreg_all_rpis(vports[i]); + lpfc_mbx_unreg_vpi(vports[i]); + shost = lpfc_shost_from_vport(vports[i]); + spin_lock_irq(shost->host_lock); + vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; + vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; + spin_unlock_irq(shost->host_lock); + } + lpfc_destroy_vport_work_array(phba, vports); + if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) { + ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); + if (ndlp) + lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); + lpfc_cleanup_pending_mbox(phba->pport); + if (phba->sli_rev == LPFC_SLI_REV4) + lpfc_sli4_unreg_all_rpis(phba->pport); + lpfc_mbx_unreg_vpi(phba->pport); + shost = lpfc_shost_from_vport(phba->pport); + spin_lock_irq(shost->host_lock); + phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; + phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED; + spin_unlock_irq(shost->host_lock); + } + + /* Cleanup any outstanding ELS commands */ + lpfc_els_flush_all_cmd(phba); + + /* Unregister the physical port VFI */ + rc = lpfc_issue_unreg_vfi(phba->pport); + return rc; +} + +/** + * lpfc_sli4_unregister_fcf - Unregister currently registered FCF record + * @phba: Pointer to hba context object. + * + * This function issues synchronous unregister FCF mailbox command to HBA to + * unregister the currently registered FCF record. The driver does not reset + * the driver FCF usage state flags. + * + * Return 0 if successfully issued, none-zero otherwise. + */ +int +lpfc_sli4_unregister_fcf(struct lpfc_hba *phba) +{ + LPFC_MBOXQ_t *mbox; + int rc; + + mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!mbox) { + lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, + "2551 UNREG_FCFI mbox allocation failed" + "HBA state x%x\n", phba->pport->port_state); + return -ENOMEM; + } + lpfc_unreg_fcfi(mbox, phba->fcf.fcfi); + mbox->vport = phba->pport; + mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl; + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); + + if (rc == MBX_NOT_FINISHED) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2552 Unregister FCFI command failed rc x%x " + "HBA state x%x\n", + rc, phba->pport->port_state); + return -EINVAL; + } + return 0; +} + +/** + * lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan + * @phba: Pointer to hba context object. + * + * This function unregisters the currently reigstered FCF. This function + * also tries to find another FCF for discovery by rescan the HBA FCF table. + */ +void +lpfc_unregister_fcf_rescan(struct lpfc_hba *phba) +{ + int rc; + + /* Preparation for unregistering fcf */ + rc = lpfc_unregister_fcf_prep(phba); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, + "2748 Failed to prepare for unregistering " + "HBA's FCF record: rc=%d\n", rc); + return; + } + + /* Now, unregister FCF record and reset HBA FCF state */ + rc = lpfc_sli4_unregister_fcf(phba); + if (rc) + return; + /* Reset HBA FCF states after successful unregister FCF */ + phba->fcf.fcf_flag = 0; + phba->fcf.current_rec.flag = 0; + + /* + * If driver is not unloading, check if there is any other + * FCF record that can be used for discovery. + */ + if ((phba->pport->load_flag & FC_UNLOADING) || + (phba->link_state < LPFC_LINK_UP)) + return; + + /* This is considered as the initial FCF discovery scan */ + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag |= FCF_INIT_DISC; + spin_unlock_irq(&phba->hbalock); + + /* Reset FCF roundrobin bmask for new discovery */ + lpfc_sli4_clear_fcf_rr_bmask(phba); + + rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); + + if (rc) { + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_INIT_DISC; + spin_unlock_irq(&phba->hbalock); + lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX, + "2553 lpfc_unregister_unused_fcf failed " + "to read FCF record HBA state x%x\n", + phba->pport->port_state); + } +} + +/** + * lpfc_unregister_fcf - Unregister the currently registered fcf record + * @phba: Pointer to hba context object. + * + * This function just unregisters the currently reigstered FCF. It does not + * try to find another FCF for discovery. + */ +void +lpfc_unregister_fcf(struct lpfc_hba *phba) +{ + int rc; + + /* Preparation for unregistering fcf */ + rc = lpfc_unregister_fcf_prep(phba); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, + "2749 Failed to prepare for unregistering " + "HBA's FCF record: rc=%d\n", rc); + return; + } + + /* Now, unregister FCF record and reset HBA FCF state */ + rc = lpfc_sli4_unregister_fcf(phba); + if (rc) + return; + /* Set proper HBA FCF states after successful unregister FCF */ + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_REGISTERED; + spin_unlock_irq(&phba->hbalock); +} + +/** + * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected. + * @phba: Pointer to hba context object. + * + * This function check if there are any connected remote port for the FCF and + * if all the devices are disconnected, this function unregister FCFI. + * This function also tries to use another FCF for discovery. + */ +void +lpfc_unregister_unused_fcf(struct lpfc_hba *phba) +{ + /* + * If HBA is not running in FIP mode, if HBA does not support + * FCoE, if FCF discovery is ongoing, or if FCF has not been + * registered, do nothing. + */ + spin_lock_irq(&phba->hbalock); + if (!(phba->hba_flag & HBA_FCOE_MODE) || + !(phba->fcf.fcf_flag & FCF_REGISTERED) || + !(phba->hba_flag & HBA_FIP_SUPPORT) || + (phba->fcf.fcf_flag & FCF_DISCOVERY) || + (phba->pport->port_state == LPFC_FLOGI)) { + spin_unlock_irq(&phba->hbalock); + return; + } + spin_unlock_irq(&phba->hbalock); + + if (lpfc_fcf_inuse(phba)) + return; + + lpfc_unregister_fcf_rescan(phba); +} + +/** + * lpfc_read_fcf_conn_tbl - Create driver FCF connection table. + * @phba: Pointer to hba context object. + * @buff: Buffer containing the FCF connection table as in the config + * region. + * This function create driver data structure for the FCF connection + * record table read from config region 23. + */ +static void +lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba, + uint8_t *buff) +{ + struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; + struct lpfc_fcf_conn_hdr *conn_hdr; + struct lpfc_fcf_conn_rec *conn_rec; + uint32_t record_count; + int i; + + /* Free the current connect table */ + list_for_each_entry_safe(conn_entry, next_conn_entry, + &phba->fcf_conn_rec_list, list) { + list_del_init(&conn_entry->list); + kfree(conn_entry); + } + + conn_hdr = (struct lpfc_fcf_conn_hdr *) buff; + record_count = conn_hdr->length * sizeof(uint32_t)/ + sizeof(struct lpfc_fcf_conn_rec); + + conn_rec = (struct lpfc_fcf_conn_rec *) + (buff + sizeof(struct lpfc_fcf_conn_hdr)); + + for (i = 0; i < record_count; i++) { + if (!(conn_rec[i].flags & FCFCNCT_VALID)) + continue; + conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry), + GFP_KERNEL); + if (!conn_entry) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2566 Failed to allocate connection" + " table entry\n"); + return; + } + + memcpy(&conn_entry->conn_rec, &conn_rec[i], + sizeof(struct lpfc_fcf_conn_rec)); + list_add_tail(&conn_entry->list, + &phba->fcf_conn_rec_list); + } + + if (!list_empty(&phba->fcf_conn_rec_list)) { + i = 0; + list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, + list) { + conn_rec = &conn_entry->conn_rec; + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "3345 FCF connection list rec[%02d]: " + "flags:x%04x, vtag:x%04x, " + "fabric_name:x%02x:%02x:%02x:%02x:" + "%02x:%02x:%02x:%02x, " + "switch_name:x%02x:%02x:%02x:%02x:" + "%02x:%02x:%02x:%02x\n", i++, + conn_rec->flags, conn_rec->vlan_tag, + conn_rec->fabric_name[0], + conn_rec->fabric_name[1], + conn_rec->fabric_name[2], + conn_rec->fabric_name[3], + conn_rec->fabric_name[4], + conn_rec->fabric_name[5], + conn_rec->fabric_name[6], + conn_rec->fabric_name[7], + conn_rec->switch_name[0], + conn_rec->switch_name[1], + conn_rec->switch_name[2], + conn_rec->switch_name[3], + conn_rec->switch_name[4], + conn_rec->switch_name[5], + conn_rec->switch_name[6], + conn_rec->switch_name[7]); + } + } +} + +/** + * lpfc_read_fcoe_param - Read FCoe parameters from conf region.. + * @phba: Pointer to hba context object. + * @buff: Buffer containing the FCoE parameter data structure. + * + * This function update driver data structure with config + * parameters read from config region 23. + */ +static void +lpfc_read_fcoe_param(struct lpfc_hba *phba, + uint8_t *buff) +{ + struct lpfc_fip_param_hdr *fcoe_param_hdr; + struct lpfc_fcoe_params *fcoe_param; + + fcoe_param_hdr = (struct lpfc_fip_param_hdr *) + buff; + fcoe_param = (struct lpfc_fcoe_params *) + (buff + sizeof(struct lpfc_fip_param_hdr)); + + if ((fcoe_param_hdr->parm_version != FIPP_VERSION) || + (fcoe_param_hdr->length != FCOE_PARAM_LENGTH)) + return; + + if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) { + phba->valid_vlan = 1; + phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) & + 0xFFF; + } + + phba->fc_map[0] = fcoe_param->fc_map[0]; + phba->fc_map[1] = fcoe_param->fc_map[1]; + phba->fc_map[2] = fcoe_param->fc_map[2]; + return; +} + +/** + * lpfc_get_rec_conf23 - Get a record type in config region data. + * @buff: Buffer containing config region 23 data. + * @size: Size of the data buffer. + * @rec_type: Record type to be searched. + * + * This function searches config region data to find the beginning + * of the record specified by record_type. If record found, this + * function return pointer to the record else return NULL. + */ +static uint8_t * +lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type) +{ + uint32_t offset = 0, rec_length; + + if ((buff[0] == LPFC_REGION23_LAST_REC) || + (size < sizeof(uint32_t))) + return NULL; + + rec_length = buff[offset + 1]; + + /* + * One TLV record has one word header and number of data words + * specified in the rec_length field of the record header. + */ + while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t)) + <= size) { + if (buff[offset] == rec_type) + return &buff[offset]; + + if (buff[offset] == LPFC_REGION23_LAST_REC) + return NULL; + + offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t); + rec_length = buff[offset + 1]; + } + return NULL; +} + +/** + * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23. + * @phba: Pointer to lpfc_hba data structure. + * @buff: Buffer containing config region 23 data. + * @size: Size of the data buffer. + * + * This function parses the FCoE config parameters in config region 23 and + * populate driver data structure with the parameters. + */ +void +lpfc_parse_fcoe_conf(struct lpfc_hba *phba, + uint8_t *buff, + uint32_t size) +{ + uint32_t offset = 0, rec_length; + uint8_t *rec_ptr; + + /* + * If data size is less than 2 words signature and version cannot be + * verified. + */ + if (size < 2*sizeof(uint32_t)) + return; + + /* Check the region signature first */ + if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2567 Config region 23 has bad signature\n"); + return; + } + + offset += 4; + + /* Check the data structure version */ + if (buff[offset] != LPFC_REGION23_VERSION) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2568 Config region 23 has bad version\n"); + return; + } + offset += 4; + + rec_length = buff[offset + 1]; + + /* Read FCoE param record */ + rec_ptr = lpfc_get_rec_conf23(&buff[offset], + size - offset, FCOE_PARAM_TYPE); + if (rec_ptr) + lpfc_read_fcoe_param(phba, rec_ptr); + + /* Read FCF connection table */ + rec_ptr = lpfc_get_rec_conf23(&buff[offset], + size - offset, FCOE_CONN_TBL_TYPE); + if (rec_ptr) + lpfc_read_fcf_conn_tbl(phba, rec_ptr); + +} |