v4.19.13 snapshot.
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
new file mode 100644
index 0000000..eb71877
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -0,0 +1,6710 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for *
+ * Fibre Channel Host Bus Adapters. *
+ * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term *
+ * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
+ * Copyright (C) 2004-2016 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
+ * www.broadcom.com *
+ * Portions Copyright (C) 2004-2005 Christoph Hellwig *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. See the GNU General Public License for *
+ * more details, a copy of which can be found in the file COPYING *
+ * included with this package. *
+ *******************************************************************/
+
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/kthread.h>
+#include <linux/interrupt.h>
+#include <linux/lockdep.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc/fc_fs.h>
+
+#include <linux/nvme-fc-driver.h>
+
+#include "lpfc_hw4.h"
+#include "lpfc_hw.h"
+#include "lpfc_nl.h"
+#include "lpfc_disc.h"
+#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
+#include "lpfc.h"
+#include "lpfc_scsi.h"
+#include "lpfc_nvme.h"
+#include "lpfc_logmsg.h"
+#include "lpfc_crtn.h"
+#include "lpfc_vport.h"
+#include "lpfc_debugfs.h"
+
+/* AlpaArray for assignment of scsid for scan-down and bind_method */
+static uint8_t lpfcAlpaArray[] = {
+ 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
+ 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
+ 0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
+ 0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
+ 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
+ 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
+ 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
+ 0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
+ 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
+ 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
+ 0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
+ 0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
+ 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
+};
+
+static void lpfc_disc_timeout_handler(struct lpfc_vport *);
+static void lpfc_disc_flush_list(struct lpfc_vport *vport);
+static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
+static int lpfc_fcf_inuse(struct lpfc_hba *);
+
+void
+lpfc_terminate_rport_io(struct fc_rport *rport)
+{
+ struct lpfc_rport_data *rdata;
+ struct lpfc_nodelist * ndlp;
+ struct lpfc_hba *phba;
+
+ rdata = rport->dd_data;
+ ndlp = rdata->pnode;
+
+ if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
+ if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
+ printk(KERN_ERR "Cannot find remote node"
+ " to terminate I/O Data x%x\n",
+ rport->port_id);
+ return;
+ }
+
+ phba = ndlp->phba;
+
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
+ "rport terminate: sid:x%x did:x%x flg:x%x",
+ ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
+
+ if (ndlp->nlp_sid != NLP_NO_SID) {
+ lpfc_sli_abort_iocb(ndlp->vport,
+ &phba->sli.sli3_ring[LPFC_FCP_RING],
+ ndlp->nlp_sid, 0, LPFC_CTX_TGT);
+ }
+}
+
+/*
+ * This function will be called when dev_loss_tmo fire.
+ */
+void
+lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
+{
+ struct lpfc_rport_data *rdata;
+ struct lpfc_nodelist * ndlp;
+ struct lpfc_vport *vport;
+ struct Scsi_Host *shost;
+ struct lpfc_hba *phba;
+ struct lpfc_work_evt *evtp;
+ int put_node;
+ int put_rport;
+
+ rdata = rport->dd_data;
+ ndlp = rdata->pnode;
+ if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
+ return;
+
+ vport = ndlp->vport;
+ phba = vport->phba;
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
+ "rport devlosscb: sid:x%x did:x%x flg:x%x",
+ ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
+
+ lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
+ "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
+ ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
+
+ /* Don't defer this if we are in the process of deleting the vport
+ * or unloading the driver. The unload will cleanup the node
+ * appropriately we just need to cleanup the ndlp rport info here.
+ */
+ if (vport->load_flag & FC_UNLOADING) {
+ put_node = rdata->pnode != NULL;
+ put_rport = ndlp->rport != NULL;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
+ if (put_node)
+ lpfc_nlp_put(ndlp);
+ if (put_rport)
+ put_device(&rport->dev);
+ return;
+ }
+
+ if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
+ return;
+
+ if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
+ "6789 rport name %llx != node port name %llx",
+ rport->port_name,
+ wwn_to_u64(ndlp->nlp_portname.u.wwn));
+
+ evtp = &ndlp->dev_loss_evt;
+
+ if (!list_empty(&evtp->evt_listp)) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
+ "6790 rport name %llx dev_loss_evt pending",
+ rport->port_name);
+ return;
+ }
+
+ shost = lpfc_shost_from_vport(vport);
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
+ spin_unlock_irq(shost->host_lock);
+
+ /* We need to hold the node by incrementing the reference
+ * count until this queued work is done
+ */
+ evtp->evt_arg1 = lpfc_nlp_get(ndlp);
+
+ spin_lock_irq(&phba->hbalock);
+ if (evtp->evt_arg1) {
+ evtp->evt = LPFC_EVT_DEV_LOSS;
+ list_add_tail(&evtp->evt_listp, &phba->work_list);
+ lpfc_worker_wake_up(phba);
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ return;
+}
+
+/**
+ * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
+ * @ndlp: Pointer to remote node object.
+ *
+ * This function is called from the worker thread when devloss timeout timer
+ * expires. For SLI4 host, this routine shall return 1 when at lease one
+ * remote node, including this @ndlp, is still in use of FCF; otherwise, this
+ * routine shall return 0 when there is no remote node is still in use of FCF
+ * when devloss timeout happened to this @ndlp.
+ **/
+static int
+lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_rport_data *rdata;
+ struct fc_rport *rport;
+ struct lpfc_vport *vport;
+ struct lpfc_hba *phba;
+ struct Scsi_Host *shost;
+ uint8_t *name;
+ int put_node;
+ int warn_on = 0;
+ int fcf_inuse = 0;
+
+ rport = ndlp->rport;
+ vport = ndlp->vport;
+ shost = lpfc_shost_from_vport(vport);
+
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
+ spin_unlock_irq(shost->host_lock);
+
+ if (!rport)
+ return fcf_inuse;
+
+ name = (uint8_t *) &ndlp->nlp_portname;
+ phba = vport->phba;
+
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ fcf_inuse = lpfc_fcf_inuse(phba);
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
+ "rport devlosstmo:did:x%x type:x%x id:x%x",
+ ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
+
+ lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
+ "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
+ ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
+
+ /*
+ * lpfc_nlp_remove if reached with dangling rport drops the
+ * reference. To make sure that does not happen clear rport
+ * pointer in ndlp before lpfc_nlp_put.
+ */
+ rdata = rport->dd_data;
+
+ /* Don't defer this if we are in the process of deleting the vport
+ * or unloading the driver. The unload will cleanup the node
+ * appropriately we just need to cleanup the ndlp rport info here.
+ */
+ if (vport->load_flag & FC_UNLOADING) {
+ if (ndlp->nlp_sid != NLP_NO_SID) {
+ /* flush the target */
+ lpfc_sli_abort_iocb(vport,
+ &phba->sli.sli3_ring[LPFC_FCP_RING],
+ ndlp->nlp_sid, 0, LPFC_CTX_TGT);
+ }
+ put_node = rdata->pnode != NULL;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
+ if (put_node)
+ lpfc_nlp_put(ndlp);
+ put_device(&rport->dev);
+
+ return fcf_inuse;
+ }
+
+ if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0284 Devloss timeout Ignored on "
+ "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
+ "NPort x%x\n",
+ *name, *(name+1), *(name+2), *(name+3),
+ *(name+4), *(name+5), *(name+6), *(name+7),
+ ndlp->nlp_DID);
+ return fcf_inuse;
+ }
+
+ put_node = rdata->pnode != NULL;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
+ if (put_node)
+ lpfc_nlp_put(ndlp);
+ put_device(&rport->dev);
+
+ if (ndlp->nlp_type & NLP_FABRIC)
+ return fcf_inuse;
+
+ if (ndlp->nlp_sid != NLP_NO_SID) {
+ warn_on = 1;
+ lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING],
+ ndlp->nlp_sid, 0, LPFC_CTX_TGT);
+ }
+
+ if (warn_on) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0203 Devloss timeout on "
+ "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
+ "NPort x%06x Data: x%x x%x x%x\n",
+ *name, *(name+1), *(name+2), *(name+3),
+ *(name+4), *(name+5), *(name+6), *(name+7),
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ ndlp->nlp_state, ndlp->nlp_rpi);
+ } else {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0204 Devloss timeout on "
+ "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
+ "NPort x%06x Data: x%x x%x x%x\n",
+ *name, *(name+1), *(name+2), *(name+3),
+ *(name+4), *(name+5), *(name+6), *(name+7),
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ ndlp->nlp_state, ndlp->nlp_rpi);
+ }
+
+ if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
+ !(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
+ (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
+ (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
+ (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
+ lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
+
+ return fcf_inuse;
+}
+
+/**
+ * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
+ * @phba: Pointer to hba context object.
+ * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
+ * @nlp_did: remote node identifer with devloss timeout.
+ *
+ * This function is called from the worker thread after invoking devloss
+ * timeout handler and releasing the reference count for the ndlp with
+ * which the devloss timeout was handled for SLI4 host. For the devloss
+ * timeout of the last remote node which had been in use of FCF, when this
+ * routine is invoked, it shall be guaranteed that none of the remote are
+ * in-use of FCF. When devloss timeout to the last remote using the FCF,
+ * if the FIP engine is neither in FCF table scan process nor roundrobin
+ * failover process, the in-use FCF shall be unregistered. If the FIP
+ * engine is in FCF discovery process, the devloss timeout state shall
+ * be set for either the FCF table scan process or roundrobin failover
+ * process to unregister the in-use FCF.
+ **/
+static void
+lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
+ uint32_t nlp_did)
+{
+ /* If devloss timeout happened to a remote node when FCF had no
+ * longer been in-use, do nothing.
+ */
+ if (!fcf_inuse)
+ return;
+
+ if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
+ spin_lock_irq(&phba->hbalock);
+ if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
+ if (phba->hba_flag & HBA_DEVLOSS_TMO) {
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+ phba->hba_flag |= HBA_DEVLOSS_TMO;
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2847 Last remote node (x%x) using "
+ "FCF devloss tmo\n", nlp_did);
+ }
+ if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2868 Devloss tmo to FCF rediscovery "
+ "in progress\n");
+ return;
+ }
+ if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2869 Devloss tmo to idle FIP engine, "
+ "unreg in-use FCF and rescan.\n");
+ /* Unregister in-use FCF and rescan */
+ lpfc_unregister_fcf_rescan(phba);
+ return;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ if (phba->hba_flag & FCF_TS_INPROG)
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2870 FCF table scan in progress\n");
+ if (phba->hba_flag & FCF_RR_INPROG)
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2871 FLOGI roundrobin FCF failover "
+ "in progress\n");
+ }
+ lpfc_unregister_unused_fcf(phba);
+}
+
+/**
+ * lpfc_alloc_fast_evt - Allocates data structure for posting event
+ * @phba: Pointer to hba context object.
+ *
+ * This function is called from the functions which need to post
+ * events from interrupt context. This function allocates data
+ * structure required for posting event. It also keeps track of
+ * number of events pending and prevent event storm when there are
+ * too many events.
+ **/
+struct lpfc_fast_path_event *
+lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
+ struct lpfc_fast_path_event *ret;
+
+ /* If there are lot of fast event do not exhaust memory due to this */
+ if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
+ return NULL;
+
+ ret = kzalloc(sizeof(struct lpfc_fast_path_event),
+ GFP_ATOMIC);
+ if (ret) {
+ atomic_inc(&phba->fast_event_count);
+ INIT_LIST_HEAD(&ret->work_evt.evt_listp);
+ ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
+ }
+ return ret;
+}
+
+/**
+ * lpfc_free_fast_evt - Frees event data structure
+ * @phba: Pointer to hba context object.
+ * @evt: Event object which need to be freed.
+ *
+ * This function frees the data structure required for posting
+ * events.
+ **/
+void
+lpfc_free_fast_evt(struct lpfc_hba *phba,
+ struct lpfc_fast_path_event *evt) {
+
+ atomic_dec(&phba->fast_event_count);
+ kfree(evt);
+}
+
+/**
+ * lpfc_send_fastpath_evt - Posts events generated from fast path
+ * @phba: Pointer to hba context object.
+ * @evtp: Event data structure.
+ *
+ * This function is called from worker thread, when the interrupt
+ * context need to post an event. This function posts the event
+ * to fc transport netlink interface.
+ **/
+static void
+lpfc_send_fastpath_evt(struct lpfc_hba *phba,
+ struct lpfc_work_evt *evtp)
+{
+ unsigned long evt_category, evt_sub_category;
+ struct lpfc_fast_path_event *fast_evt_data;
+ char *evt_data;
+ uint32_t evt_data_size;
+ struct Scsi_Host *shost;
+
+ fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
+ work_evt);
+
+ evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
+ evt_sub_category = (unsigned long) fast_evt_data->un.
+ fabric_evt.subcategory;
+ shost = lpfc_shost_from_vport(fast_evt_data->vport);
+ if (evt_category == FC_REG_FABRIC_EVENT) {
+ if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
+ evt_data = (char *) &fast_evt_data->un.read_check_error;
+ evt_data_size = sizeof(fast_evt_data->un.
+ read_check_error);
+ } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
+ (evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
+ evt_data = (char *) &fast_evt_data->un.fabric_evt;
+ evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
+ } else {
+ lpfc_free_fast_evt(phba, fast_evt_data);
+ return;
+ }
+ } else if (evt_category == FC_REG_SCSI_EVENT) {
+ switch (evt_sub_category) {
+ case LPFC_EVENT_QFULL:
+ case LPFC_EVENT_DEVBSY:
+ evt_data = (char *) &fast_evt_data->un.scsi_evt;
+ evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
+ break;
+ case LPFC_EVENT_CHECK_COND:
+ evt_data = (char *) &fast_evt_data->un.check_cond_evt;
+ evt_data_size = sizeof(fast_evt_data->un.
+ check_cond_evt);
+ break;
+ case LPFC_EVENT_VARQUEDEPTH:
+ evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
+ evt_data_size = sizeof(fast_evt_data->un.
+ queue_depth_evt);
+ break;
+ default:
+ lpfc_free_fast_evt(phba, fast_evt_data);
+ return;
+ }
+ } else {
+ lpfc_free_fast_evt(phba, fast_evt_data);
+ return;
+ }
+
+ if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
+ fc_host_post_vendor_event(shost,
+ fc_get_event_number(),
+ evt_data_size,
+ evt_data,
+ LPFC_NL_VENDOR_ID);
+
+ lpfc_free_fast_evt(phba, fast_evt_data);
+ return;
+}
+
+static void
+lpfc_work_list_done(struct lpfc_hba *phba)
+{
+ struct lpfc_work_evt *evtp = NULL;
+ struct lpfc_nodelist *ndlp;
+ int free_evt;
+ int fcf_inuse;
+ uint32_t nlp_did;
+
+ spin_lock_irq(&phba->hbalock);
+ while (!list_empty(&phba->work_list)) {
+ list_remove_head((&phba->work_list), evtp, typeof(*evtp),
+ evt_listp);
+ spin_unlock_irq(&phba->hbalock);
+ free_evt = 1;
+ switch (evtp->evt) {
+ case LPFC_EVT_ELS_RETRY:
+ ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
+ lpfc_els_retry_delay_handler(ndlp);
+ free_evt = 0; /* evt is part of ndlp */
+ /* decrement the node reference count held
+ * for this queued work
+ */
+ lpfc_nlp_put(ndlp);
+ break;
+ case LPFC_EVT_DEV_LOSS:
+ ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
+ fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
+ free_evt = 0;
+ /* decrement the node reference count held for
+ * this queued work
+ */
+ nlp_did = ndlp->nlp_DID;
+ lpfc_nlp_put(ndlp);
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_sli4_post_dev_loss_tmo_handler(phba,
+ fcf_inuse,
+ nlp_did);
+ break;
+ case LPFC_EVT_ONLINE:
+ if (phba->link_state < LPFC_LINK_DOWN)
+ *(int *) (evtp->evt_arg1) = lpfc_online(phba);
+ else
+ *(int *) (evtp->evt_arg1) = 0;
+ complete((struct completion *)(evtp->evt_arg2));
+ break;
+ case LPFC_EVT_OFFLINE_PREP:
+ if (phba->link_state >= LPFC_LINK_DOWN)
+ lpfc_offline_prep(phba, LPFC_MBX_WAIT);
+ *(int *)(evtp->evt_arg1) = 0;
+ complete((struct completion *)(evtp->evt_arg2));
+ break;
+ case LPFC_EVT_OFFLINE:
+ lpfc_offline(phba);
+ lpfc_sli_brdrestart(phba);
+ *(int *)(evtp->evt_arg1) =
+ lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
+ lpfc_unblock_mgmt_io(phba);
+ complete((struct completion *)(evtp->evt_arg2));
+ break;
+ case LPFC_EVT_WARM_START:
+ lpfc_offline(phba);
+ lpfc_reset_barrier(phba);
+ lpfc_sli_brdreset(phba);
+ lpfc_hba_down_post(phba);
+ *(int *)(evtp->evt_arg1) =
+ lpfc_sli_brdready(phba, HS_MBRDY);
+ lpfc_unblock_mgmt_io(phba);
+ complete((struct completion *)(evtp->evt_arg2));
+ break;
+ case LPFC_EVT_KILL:
+ lpfc_offline(phba);
+ *(int *)(evtp->evt_arg1)
+ = (phba->pport->stopped)
+ ? 0 : lpfc_sli_brdkill(phba);
+ lpfc_unblock_mgmt_io(phba);
+ complete((struct completion *)(evtp->evt_arg2));
+ break;
+ case LPFC_EVT_FASTPATH_MGMT_EVT:
+ lpfc_send_fastpath_evt(phba, evtp);
+ free_evt = 0;
+ break;
+ case LPFC_EVT_RESET_HBA:
+ if (!(phba->pport->load_flag & FC_UNLOADING))
+ lpfc_reset_hba(phba);
+ break;
+ }
+ if (free_evt)
+ kfree(evtp);
+ spin_lock_irq(&phba->hbalock);
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+}
+
+static void
+lpfc_work_done(struct lpfc_hba *phba)
+{
+ struct lpfc_sli_ring *pring;
+ uint32_t ha_copy, status, control, work_port_events;
+ struct lpfc_vport **vports;
+ struct lpfc_vport *vport;
+ int i;
+
+ spin_lock_irq(&phba->hbalock);
+ ha_copy = phba->work_ha;
+ phba->work_ha = 0;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* First, try to post the next mailbox command to SLI4 device */
+ if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
+ lpfc_sli4_post_async_mbox(phba);
+
+ if (ha_copy & HA_ERATT)
+ /* Handle the error attention event */
+ lpfc_handle_eratt(phba);
+
+ if (ha_copy & HA_MBATT)
+ lpfc_sli_handle_mb_event(phba);
+
+ if (ha_copy & HA_LATT)
+ lpfc_handle_latt(phba);
+
+ /* Process SLI4 events */
+ if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
+ if (phba->hba_flag & HBA_RRQ_ACTIVE)
+ lpfc_handle_rrq_active(phba);
+ if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
+ lpfc_sli4_fcp_xri_abort_event_proc(phba);
+ if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
+ lpfc_sli4_els_xri_abort_event_proc(phba);
+ if (phba->hba_flag & ASYNC_EVENT)
+ lpfc_sli4_async_event_proc(phba);
+ if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
+ }
+ if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
+ lpfc_sli4_fcf_redisc_event_proc(phba);
+ }
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports; i++) {
+ /*
+ * We could have no vports in array if unloading, so if
+ * this happens then just use the pport
+ */
+ if (vports[i] == NULL && i == 0)
+ vport = phba->pport;
+ else
+ vport = vports[i];
+ if (vport == NULL)
+ break;
+ spin_lock_irq(&vport->work_port_lock);
+ work_port_events = vport->work_port_events;
+ vport->work_port_events &= ~work_port_events;
+ spin_unlock_irq(&vport->work_port_lock);
+ if (work_port_events & WORKER_DISC_TMO)
+ lpfc_disc_timeout_handler(vport);
+ if (work_port_events & WORKER_ELS_TMO)
+ lpfc_els_timeout_handler(vport);
+ if (work_port_events & WORKER_HB_TMO)
+ lpfc_hb_timeout_handler(phba);
+ if (work_port_events & WORKER_MBOX_TMO)
+ lpfc_mbox_timeout_handler(phba);
+ if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
+ lpfc_unblock_fabric_iocbs(phba);
+ if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
+ lpfc_ramp_down_queue_handler(phba);
+ if (work_port_events & WORKER_DELAYED_DISC_TMO)
+ lpfc_delayed_disc_timeout_handler(vport);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ pring = lpfc_phba_elsring(phba);
+ status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
+ status >>= (4*LPFC_ELS_RING);
+ if (pring && (status & HA_RXMASK ||
+ pring->flag & LPFC_DEFERRED_RING_EVENT ||
+ phba->hba_flag & HBA_SP_QUEUE_EVT)) {
+ if (pring->flag & LPFC_STOP_IOCB_EVENT) {
+ pring->flag |= LPFC_DEFERRED_RING_EVENT;
+ /* Preserve legacy behavior. */
+ if (!(phba->hba_flag & HBA_SP_QUEUE_EVT))
+ set_bit(LPFC_DATA_READY, &phba->data_flags);
+ } else {
+ if (phba->link_state >= LPFC_LINK_UP ||
+ phba->link_flag & LS_MDS_LOOPBACK) {
+ pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
+ lpfc_sli_handle_slow_ring_event(phba, pring,
+ (status &
+ HA_RXMASK));
+ }
+ }
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_drain_txq(phba);
+ /*
+ * Turn on Ring interrupts
+ */
+ if (phba->sli_rev <= LPFC_SLI_REV3) {
+ spin_lock_irq(&phba->hbalock);
+ control = readl(phba->HCregaddr);
+ if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
+ lpfc_debugfs_slow_ring_trc(phba,
+ "WRK Enable ring: cntl:x%x hacopy:x%x",
+ control, ha_copy, 0);
+
+ control |= (HC_R0INT_ENA << LPFC_ELS_RING);
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ } else {
+ lpfc_debugfs_slow_ring_trc(phba,
+ "WRK Ring ok: cntl:x%x hacopy:x%x",
+ control, ha_copy, 0);
+ }
+ spin_unlock_irq(&phba->hbalock);
+ }
+ }
+ lpfc_work_list_done(phba);
+}
+
+int
+lpfc_do_work(void *p)
+{
+ struct lpfc_hba *phba = p;
+ int rc;
+
+ set_user_nice(current, MIN_NICE);
+ current->flags |= PF_NOFREEZE;
+ phba->data_flags = 0;
+
+ while (!kthread_should_stop()) {
+ /* wait and check worker queue activities */
+ rc = wait_event_interruptible(phba->work_waitq,
+ (test_and_clear_bit(LPFC_DATA_READY,
+ &phba->data_flags)
+ || kthread_should_stop()));
+ /* Signal wakeup shall terminate the worker thread */
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
+ "0433 Wakeup on signal: rc=x%x\n", rc);
+ break;
+ }
+
+ /* Attend pending lpfc data processing */
+ lpfc_work_done(phba);
+ }
+ phba->worker_thread = NULL;
+ lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
+ "0432 Worker thread stopped.\n");
+ return 0;
+}
+
+/*
+ * This is only called to handle FC worker events. Since this a rare
+ * occurrence, we allocate a struct lpfc_work_evt structure here instead of
+ * embedding it in the IOCB.
+ */
+int
+lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
+ uint32_t evt)
+{
+ struct lpfc_work_evt *evtp;
+ unsigned long flags;
+
+ /*
+ * All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
+ * be queued to worker thread for processing
+ */
+ evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
+ if (!evtp)
+ return 0;
+
+ evtp->evt_arg1 = arg1;
+ evtp->evt_arg2 = arg2;
+ evtp->evt = evt;
+
+ spin_lock_irqsave(&phba->hbalock, flags);
+ list_add_tail(&evtp->evt_listp, &phba->work_list);
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+
+ lpfc_worker_wake_up(phba);
+
+ return 1;
+}
+
+void
+lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_nodelist *ndlp, *next_ndlp;
+
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ continue;
+ if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
+ ((vport->port_type == LPFC_NPIV_PORT) &&
+ (ndlp->nlp_DID == NameServer_DID)))
+ lpfc_unreg_rpi(vport, ndlp);
+
+ /* Leave Fabric nodes alone on link down */
+ if ((phba->sli_rev < LPFC_SLI_REV4) &&
+ (!remove && ndlp->nlp_type & NLP_FABRIC))
+ continue;
+ lpfc_disc_state_machine(vport, ndlp, NULL,
+ remove
+ ? NLP_EVT_DEVICE_RM
+ : NLP_EVT_DEVICE_RECOVERY);
+ }
+ if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_sli4_unreg_all_rpis(vport);
+ lpfc_mbx_unreg_vpi(vport);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
+ }
+}
+
+void
+lpfc_port_link_failure(struct lpfc_vport *vport)
+{
+ lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
+
+ /* Cleanup any outstanding received buffers */
+ lpfc_cleanup_rcv_buffers(vport);
+
+ /* Cleanup any outstanding RSCN activity */
+ lpfc_els_flush_rscn(vport);
+
+ /* Cleanup any outstanding ELS commands */
+ lpfc_els_flush_cmd(vport);
+
+ lpfc_cleanup_rpis(vport, 0);
+
+ /* Turn off discovery timer if its running */
+ lpfc_can_disctmo(vport);
+}
+
+void
+lpfc_linkdown_port(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
+ fc_host_post_event(shost, fc_get_event_number(),
+ FCH_EVT_LINKDOWN, 0);
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "Link Down: state:x%x rtry:x%x flg:x%x",
+ vport->port_state, vport->fc_ns_retry, vport->fc_flag);
+
+ lpfc_port_link_failure(vport);
+
+ /* Stop delayed Nport discovery */
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_DISC_DELAYED;
+ spin_unlock_irq(shost->host_lock);
+ del_timer_sync(&vport->delayed_disc_tmo);
+}
+
+int
+lpfc_linkdown(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_vport **vports;
+ LPFC_MBOXQ_t *mb;
+ int i;
+
+ if (phba->link_state == LPFC_LINK_DOWN)
+ return 0;
+
+ /* Block all SCSI stack I/Os */
+ lpfc_scsi_dev_block(phba);
+
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
+ spin_unlock_irq(&phba->hbalock);
+ if (phba->link_state > LPFC_LINK_DOWN) {
+ phba->link_state = LPFC_LINK_DOWN;
+ spin_lock_irq(shost->host_lock);
+ phba->pport->fc_flag &= ~FC_LBIT;
+ spin_unlock_irq(shost->host_lock);
+ }
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL) {
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ /* Issue a LINK DOWN event to all nodes */
+ lpfc_linkdown_port(vports[i]);
+
+ vports[i]->fc_myDID = 0;
+
+ if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
+ (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
+ if (phba->nvmet_support)
+ lpfc_nvmet_update_targetport(phba);
+ else
+ lpfc_nvme_update_localport(vports[i]);
+ }
+ }
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+ /* Clean up any firmware default rpi's */
+ mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mb) {
+ lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
+ mb->vport = vport;
+ mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
+ == MBX_NOT_FINISHED) {
+ mempool_free(mb, phba->mbox_mem_pool);
+ }
+ }
+
+ /* Setup myDID for link up if we are in pt2pt mode */
+ if (phba->pport->fc_flag & FC_PT2PT) {
+ mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mb) {
+ lpfc_config_link(phba, mb);
+ mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mb->vport = vport;
+ if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
+ == MBX_NOT_FINISHED) {
+ mempool_free(mb, phba->mbox_mem_pool);
+ }
+ }
+ spin_lock_irq(shost->host_lock);
+ phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
+ spin_unlock_irq(shost->host_lock);
+ }
+ return 0;
+}
+
+static void
+lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
+{
+ struct lpfc_nodelist *ndlp;
+
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ continue;
+ if (ndlp->nlp_type & NLP_FABRIC) {
+ /* On Linkup its safe to clean up the ndlp
+ * from Fabric connections.
+ */
+ if (ndlp->nlp_DID != Fabric_DID)
+ lpfc_unreg_rpi(vport, ndlp);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
+ /* Fail outstanding IO now since device is
+ * marked for PLOGI.
+ */
+ lpfc_unreg_rpi(vport, ndlp);
+ }
+ }
+}
+
+static void
+lpfc_linkup_port(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+
+ if ((vport->load_flag & FC_UNLOADING) != 0)
+ return;
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "Link Up: top:x%x speed:x%x flg:x%x",
+ phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
+
+ /* If NPIV is not enabled, only bring the physical port up */
+ if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
+ (vport != phba->pport))
+ return;
+
+ if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
+ fc_host_post_event(shost, fc_get_event_number(),
+ FCH_EVT_LINKUP, 0);
+
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
+ FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
+ vport->fc_flag |= FC_NDISC_ACTIVE;
+ vport->fc_ns_retry = 0;
+ spin_unlock_irq(shost->host_lock);
+
+ if (vport->fc_flag & FC_LBIT)
+ lpfc_linkup_cleanup_nodes(vport);
+
+}
+
+static int
+lpfc_linkup(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ int i;
+
+ phba->link_state = LPFC_LINK_UP;
+
+ /* Unblock fabric iocbs if they are blocked */
+ clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
+ del_timer_sync(&phba->fabric_block_timer);
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
+ lpfc_linkup_port(vports[i]);
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ return 0;
+}
+
+/*
+ * This routine handles processing a CLEAR_LA mailbox
+ * command upon completion. It is setup in the LPFC_MBOXQ
+ * as the completion routine when the command is
+ * handed off to the SLI layer. SLI3 only.
+ */
+static void
+lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_sli *psli = &phba->sli;
+ MAILBOX_t *mb = &pmb->u.mb;
+ uint32_t control;
+
+ /* Since we don't do discovery right now, turn these off here */
+ psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
+ psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
+
+ /* Check for error */
+ if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
+ /* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0320 CLEAR_LA mbxStatus error x%x hba "
+ "state x%x\n",
+ mb->mbxStatus, vport->port_state);
+ phba->link_state = LPFC_HBA_ERROR;
+ goto out;
+ }
+
+ if (vport->port_type == LPFC_PHYSICAL_PORT)
+ phba->link_state = LPFC_HBA_READY;
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag |= LPFC_PROCESS_LA;
+ control = readl(phba->HCregaddr);
+ control |= HC_LAINT_ENA;
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock_irq(&phba->hbalock);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return;
+
+out:
+ /* Device Discovery completes */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0225 Device Discovery completes\n");
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_ABORT_DISCOVERY;
+ spin_unlock_irq(shost->host_lock);
+
+ lpfc_can_disctmo(vport);
+
+ /* turn on Link Attention interrupts */
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag |= LPFC_PROCESS_LA;
+ control = readl(phba->HCregaddr);
+ control |= HC_LAINT_ENA;
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ spin_unlock_irq(&phba->hbalock);
+
+ return;
+}
+
+
+void
+lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+ uint8_t bbscn = 0;
+
+ if (pmb->u.mb.mbxStatus)
+ goto out;
+
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ /* don't perform discovery for SLI4 loopback diagnostic test */
+ if ((phba->sli_rev == LPFC_SLI_REV4) &&
+ !(phba->hba_flag & HBA_FCOE_MODE) &&
+ (phba->link_flag & LS_LOOPBACK_MODE))
+ return;
+
+ if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
+ vport->fc_flag & FC_PUBLIC_LOOP &&
+ !(vport->fc_flag & FC_LBIT)) {
+ /* Need to wait for FAN - use discovery timer
+ * for timeout. port_state is identically
+ * LPFC_LOCAL_CFG_LINK while waiting for FAN
+ */
+ lpfc_set_disctmo(vport);
+ return;
+ }
+
+ /* Start discovery by sending a FLOGI. port_state is identically
+ * LPFC_FLOGI while waiting for FLOGI cmpl
+ */
+ if (vport->port_state != LPFC_FLOGI) {
+ if (phba->bbcredit_support && phba->cfg_enable_bbcr) {
+ bbscn = bf_get(lpfc_bbscn_def,
+ &phba->sli4_hba.bbscn_params);
+ vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf;
+ vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4);
+ }
+ lpfc_initial_flogi(vport);
+ } else if (vport->fc_flag & FC_PT2PT) {
+ lpfc_disc_start(vport);
+ }
+ return;
+
+out:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0306 CONFIG_LINK mbxStatus error x%x "
+ "HBA state x%x\n",
+ pmb->u.mb.mbxStatus, vport->port_state);
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ lpfc_linkdown(phba);
+
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0200 CONFIG_LINK bad hba state x%x\n",
+ vport->port_state);
+
+ lpfc_issue_clear_la(phba, vport);
+ return;
+}
+
+/**
+ * lpfc_sli4_clear_fcf_rr_bmask
+ * @phba pointer to the struct lpfc_hba for this port.
+ * This fucnction resets the round robin bit mask and clears the
+ * fcf priority list. The list deletions are done while holding the
+ * hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
+ * from the lpfc_fcf_pri record.
+ **/
+void
+lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
+{
+ struct lpfc_fcf_pri *fcf_pri;
+ struct lpfc_fcf_pri *next_fcf_pri;
+ memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
+ spin_lock_irq(&phba->hbalock);
+ list_for_each_entry_safe(fcf_pri, next_fcf_pri,
+ &phba->fcf.fcf_pri_list, list) {
+ list_del_init(&fcf_pri->list);
+ fcf_pri->fcf_rec.flag = 0;
+ }
+ spin_unlock_irq(&phba->hbalock);
+}
+static void
+lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_vport *vport = mboxq->vport;
+
+ if (mboxq->u.mb.mbxStatus) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "2017 REG_FCFI mbxStatus error x%x "
+ "HBA state x%x\n",
+ mboxq->u.mb.mbxStatus, vport->port_state);
+ goto fail_out;
+ }
+
+ /* Start FCoE discovery by sending a FLOGI. */
+ phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
+ /* Set the FCFI registered flag */
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag |= FCF_REGISTERED;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* If there is a pending FCoE event, restart FCF table scan. */
+ if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
+ lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
+ goto fail_out;
+
+ /* Mark successful completion of FCF table scan */
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
+ phba->hba_flag &= ~FCF_TS_INPROG;
+ if (vport->port_state != LPFC_FLOGI) {
+ phba->hba_flag |= FCF_RR_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_issue_init_vfi(vport);
+ goto out;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ goto out;
+
+fail_out:
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~FCF_RR_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+out:
+ mempool_free(mboxq, phba->mbox_mem_pool);
+}
+
+/**
+ * lpfc_fab_name_match - Check if the fcf fabric name match.
+ * @fab_name: pointer to fabric name.
+ * @new_fcf_record: pointer to fcf record.
+ *
+ * This routine compare the fcf record's fabric name with provided
+ * fabric name. If the fabric name are identical this function
+ * returns 1 else return 0.
+ **/
+static uint32_t
+lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
+{
+ if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
+ return 0;
+ if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
+ return 0;
+ if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
+ return 0;
+ if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
+ return 0;
+ if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
+ return 0;
+ if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
+ return 0;
+ if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
+ return 0;
+ if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
+ return 0;
+ return 1;
+}
+
+/**
+ * lpfc_sw_name_match - Check if the fcf switch name match.
+ * @fab_name: pointer to fabric name.
+ * @new_fcf_record: pointer to fcf record.
+ *
+ * This routine compare the fcf record's switch name with provided
+ * switch name. If the switch name are identical this function
+ * returns 1 else return 0.
+ **/
+static uint32_t
+lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
+{
+ if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
+ return 0;
+ if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
+ return 0;
+ if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
+ return 0;
+ if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
+ return 0;
+ if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
+ return 0;
+ if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
+ return 0;
+ if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
+ return 0;
+ if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
+ return 0;
+ return 1;
+}
+
+/**
+ * lpfc_mac_addr_match - Check if the fcf mac address match.
+ * @mac_addr: pointer to mac address.
+ * @new_fcf_record: pointer to fcf record.
+ *
+ * This routine compare the fcf record's mac address with HBA's
+ * FCF mac address. If the mac addresses are identical this function
+ * returns 1 else return 0.
+ **/
+static uint32_t
+lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
+{
+ if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
+ return 0;
+ if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
+ return 0;
+ if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
+ return 0;
+ if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
+ return 0;
+ if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
+ return 0;
+ if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
+ return 0;
+ return 1;
+}
+
+static bool
+lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
+{
+ return (curr_vlan_id == new_vlan_id);
+}
+
+/**
+ * lpfc_update_fcf_record - Update driver fcf record
+ * __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_index: Index for the lpfc_fcf_record.
+ * @new_fcf_record: pointer to hba fcf record.
+ *
+ * This routine updates the driver FCF priority record from the new HBA FCF
+ * record. This routine is called with the host lock held.
+ **/
+static void
+__lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
+ struct fcf_record *new_fcf_record
+ )
+{
+ struct lpfc_fcf_pri *fcf_pri;
+
+ lockdep_assert_held(&phba->hbalock);
+
+ fcf_pri = &phba->fcf.fcf_pri[fcf_index];
+ fcf_pri->fcf_rec.fcf_index = fcf_index;
+ /* FCF record priority */
+ fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
+
+}
+
+/**
+ * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
+ * @fcf: pointer to driver fcf record.
+ * @new_fcf_record: pointer to fcf record.
+ *
+ * This routine copies the FCF information from the FCF
+ * record to lpfc_hba data structure.
+ **/
+static void
+lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
+ struct fcf_record *new_fcf_record)
+{
+ /* Fabric name */
+ fcf_rec->fabric_name[0] =
+ bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
+ fcf_rec->fabric_name[1] =
+ bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
+ fcf_rec->fabric_name[2] =
+ bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
+ fcf_rec->fabric_name[3] =
+ bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
+ fcf_rec->fabric_name[4] =
+ bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
+ fcf_rec->fabric_name[5] =
+ bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
+ fcf_rec->fabric_name[6] =
+ bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
+ fcf_rec->fabric_name[7] =
+ bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
+ /* Mac address */
+ fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
+ fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
+ fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
+ fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
+ fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
+ fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
+ /* FCF record index */
+ fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
+ /* FCF record priority */
+ fcf_rec->priority = new_fcf_record->fip_priority;
+ /* Switch name */
+ fcf_rec->switch_name[0] =
+ bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
+ fcf_rec->switch_name[1] =
+ bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
+ fcf_rec->switch_name[2] =
+ bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
+ fcf_rec->switch_name[3] =
+ bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
+ fcf_rec->switch_name[4] =
+ bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
+ fcf_rec->switch_name[5] =
+ bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
+ fcf_rec->switch_name[6] =
+ bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
+ fcf_rec->switch_name[7] =
+ bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
+}
+
+/**
+ * lpfc_update_fcf_record - Update driver fcf record
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_rec: pointer to driver fcf record.
+ * @new_fcf_record: pointer to hba fcf record.
+ * @addr_mode: address mode to be set to the driver fcf record.
+ * @vlan_id: vlan tag to be set to the driver fcf record.
+ * @flag: flag bits to be set to the driver fcf record.
+ *
+ * This routine updates the driver FCF record from the new HBA FCF record
+ * together with the address mode, vlan_id, and other informations. This
+ * routine is called with the host lock held.
+ **/
+static void
+__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
+ struct fcf_record *new_fcf_record, uint32_t addr_mode,
+ uint16_t vlan_id, uint32_t flag)
+{
+ lockdep_assert_held(&phba->hbalock);
+
+ /* Copy the fields from the HBA's FCF record */
+ lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
+ /* Update other fields of driver FCF record */
+ fcf_rec->addr_mode = addr_mode;
+ fcf_rec->vlan_id = vlan_id;
+ fcf_rec->flag |= (flag | RECORD_VALID);
+ __lpfc_update_fcf_record_pri(phba,
+ bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
+ new_fcf_record);
+}
+
+/**
+ * lpfc_register_fcf - Register the FCF with hba.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine issues a register fcfi mailbox command to register
+ * the fcf with HBA.
+ **/
+static void
+lpfc_register_fcf(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *fcf_mbxq;
+ int rc;
+
+ spin_lock_irq(&phba->hbalock);
+ /* If the FCF is not available do nothing. */
+ if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
+ phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+
+ /* The FCF is already registered, start discovery */
+ if (phba->fcf.fcf_flag & FCF_REGISTERED) {
+ phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
+ phba->hba_flag &= ~FCF_TS_INPROG;
+ if (phba->pport->port_state != LPFC_FLOGI &&
+ phba->pport->fc_flag & FC_FABRIC) {
+ phba->hba_flag |= FCF_RR_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_initial_flogi(phba->pport);
+ return;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!fcf_mbxq) {
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+
+ lpfc_reg_fcfi(phba, fcf_mbxq);
+ fcf_mbxq->vport = phba->pport;
+ fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
+ rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
+ spin_unlock_irq(&phba->hbalock);
+ mempool_free(fcf_mbxq, phba->mbox_mem_pool);
+ }
+
+ return;
+}
+
+/**
+ * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
+ * @phba: pointer to lpfc hba data structure.
+ * @new_fcf_record: pointer to fcf record.
+ * @boot_flag: Indicates if this record used by boot bios.
+ * @addr_mode: The address mode to be used by this FCF
+ * @vlan_id: The vlan id to be used as vlan tagging by this FCF.
+ *
+ * This routine compare the fcf record with connect list obtained from the
+ * config region to decide if this FCF can be used for SAN discovery. It returns
+ * 1 if this record can be used for SAN discovery else return zero. If this FCF
+ * record can be used for SAN discovery, the boot_flag will indicate if this FCF
+ * is used by boot bios and addr_mode will indicate the addressing mode to be
+ * used for this FCF when the function returns.
+ * If the FCF record need to be used with a particular vlan id, the vlan is
+ * set in the vlan_id on return of the function. If not VLAN tagging need to
+ * be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
+ **/
+static int
+lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
+ struct fcf_record *new_fcf_record,
+ uint32_t *boot_flag, uint32_t *addr_mode,
+ uint16_t *vlan_id)
+{
+ struct lpfc_fcf_conn_entry *conn_entry;
+ int i, j, fcf_vlan_id = 0;
+
+ /* Find the lowest VLAN id in the FCF record */
+ for (i = 0; i < 512; i++) {
+ if (new_fcf_record->vlan_bitmap[i]) {
+ fcf_vlan_id = i * 8;
+ j = 0;
+ while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
+ j++;
+ fcf_vlan_id++;
+ }
+ break;
+ }
+ }
+
+ /* FCF not valid/available or solicitation in progress */
+ if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
+ !bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
+ bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
+ return 0;
+
+ if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
+ *boot_flag = 0;
+ *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record);
+ if (phba->valid_vlan)
+ *vlan_id = phba->vlan_id;
+ else
+ *vlan_id = LPFC_FCOE_NULL_VID;
+ return 1;
+ }
+
+ /*
+ * If there are no FCF connection table entry, driver connect to all
+ * FCFs.
+ */
+ if (list_empty(&phba->fcf_conn_rec_list)) {
+ *boot_flag = 0;
+ *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record);
+
+ /*
+ * When there are no FCF connect entries, use driver's default
+ * addressing mode - FPMA.
+ */
+ if (*addr_mode & LPFC_FCF_FPMA)
+ *addr_mode = LPFC_FCF_FPMA;
+
+ /* If FCF record report a vlan id use that vlan id */
+ if (fcf_vlan_id)
+ *vlan_id = fcf_vlan_id;
+ else
+ *vlan_id = LPFC_FCOE_NULL_VID;
+ return 1;
+ }
+
+ list_for_each_entry(conn_entry,
+ &phba->fcf_conn_rec_list, list) {
+ if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
+ continue;
+
+ if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
+ !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
+ new_fcf_record))
+ continue;
+ if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
+ !lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
+ new_fcf_record))
+ continue;
+ if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
+ /*
+ * If the vlan bit map does not have the bit set for the
+ * vlan id to be used, then it is not a match.
+ */
+ if (!(new_fcf_record->vlan_bitmap
+ [conn_entry->conn_rec.vlan_tag / 8] &
+ (1 << (conn_entry->conn_rec.vlan_tag % 8))))
+ continue;
+ }
+
+ /*
+ * If connection record does not support any addressing mode,
+ * skip the FCF record.
+ */
+ if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
+ & (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
+ continue;
+
+ /*
+ * Check if the connection record specifies a required
+ * addressing mode.
+ */
+ if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
+ !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
+
+ /*
+ * If SPMA required but FCF not support this continue.
+ */
+ if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
+ !(bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record) & LPFC_FCF_SPMA))
+ continue;
+
+ /*
+ * If FPMA required but FCF not support this continue.
+ */
+ if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
+ !(bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record) & LPFC_FCF_FPMA))
+ continue;
+ }
+
+ /*
+ * This fcf record matches filtering criteria.
+ */
+ if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
+ *boot_flag = 1;
+ else
+ *boot_flag = 0;
+
+ /*
+ * If user did not specify any addressing mode, or if the
+ * preferred addressing mode specified by user is not supported
+ * by FCF, allow fabric to pick the addressing mode.
+ */
+ *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record);
+ /*
+ * If the user specified a required address mode, assign that
+ * address mode
+ */
+ if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
+ (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
+ *addr_mode = (conn_entry->conn_rec.flags &
+ FCFCNCT_AM_SPMA) ?
+ LPFC_FCF_SPMA : LPFC_FCF_FPMA;
+ /*
+ * If the user specified a preferred address mode, use the
+ * addr mode only if FCF support the addr_mode.
+ */
+ else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
+ (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
+ (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
+ (*addr_mode & LPFC_FCF_SPMA))
+ *addr_mode = LPFC_FCF_SPMA;
+ else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
+ (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
+ !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
+ (*addr_mode & LPFC_FCF_FPMA))
+ *addr_mode = LPFC_FCF_FPMA;
+
+ /* If matching connect list has a vlan id, use it */
+ if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
+ *vlan_id = conn_entry->conn_rec.vlan_tag;
+ /*
+ * If no vlan id is specified in connect list, use the vlan id
+ * in the FCF record
+ */
+ else if (fcf_vlan_id)
+ *vlan_id = fcf_vlan_id;
+ else
+ *vlan_id = LPFC_FCOE_NULL_VID;
+
+ return 1;
+ }
+
+ return 0;
+}
+
+/**
+ * lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
+ * @phba: pointer to lpfc hba data structure.
+ * @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
+ *
+ * This function check if there is any fcoe event pending while driver
+ * scan FCF entries. If there is any pending event, it will restart the
+ * FCF saning and return 1 else return 0.
+ */
+int
+lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
+{
+ /*
+ * If the Link is up and no FCoE events while in the
+ * FCF discovery, no need to restart FCF discovery.
+ */
+ if ((phba->link_state >= LPFC_LINK_UP) &&
+ (phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
+ return 0;
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2768 Pending link or FCF event during current "
+ "handling of the previous event: link_state:x%x, "
+ "evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
+ phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
+ phba->fcoe_eventtag);
+
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
+ spin_unlock_irq(&phba->hbalock);
+
+ if (phba->link_state >= LPFC_LINK_UP) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
+ "2780 Restart FCF table scan due to "
+ "pending FCF event:evt_tag_at_scan:x%x, "
+ "evt_tag_current:x%x\n",
+ phba->fcoe_eventtag_at_fcf_scan,
+ phba->fcoe_eventtag);
+ lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
+ } else {
+ /*
+ * Do not continue FCF discovery and clear FCF_TS_INPROG
+ * flag
+ */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
+ "2833 Stop FCF discovery process due to link "
+ "state change (x%x)\n", phba->link_state);
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
+ phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
+ spin_unlock_irq(&phba->hbalock);
+ }
+
+ /* Unregister the currently registered FCF if required */
+ if (unreg_fcf) {
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_REGISTERED;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli4_unregister_fcf(phba);
+ }
+ return 1;
+}
+
+/**
+ * lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_cnt: number of eligible fcf record seen so far.
+ *
+ * This function makes an running random selection decision on FCF record to
+ * use through a sequence of @fcf_cnt eligible FCF records with equal
+ * probability. To perform integer manunipulation of random numbers with
+ * size unit32_t, the lower 16 bits of the 32-bit random number returned
+ * from prandom_u32() are taken as the random random number generated.
+ *
+ * Returns true when outcome is for the newly read FCF record should be
+ * chosen; otherwise, return false when outcome is for keeping the previously
+ * chosen FCF record.
+ **/
+static bool
+lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
+{
+ uint32_t rand_num;
+
+ /* Get 16-bit uniform random number */
+ rand_num = 0xFFFF & prandom_u32();
+
+ /* Decision with probability 1/fcf_cnt */
+ if ((fcf_cnt * rand_num) < 0xFFFF)
+ return true;
+ else
+ return false;
+}
+
+/**
+ * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox object.
+ * @next_fcf_index: pointer to holder of next fcf index.
+ *
+ * This routine parses the non-embedded fcf mailbox command by performing the
+ * necessarily error checking, non-embedded read FCF record mailbox command
+ * SGE parsing, and endianness swapping.
+ *
+ * Returns the pointer to the new FCF record in the non-embedded mailbox
+ * command DMA memory if successfully, other NULL.
+ */
+static struct fcf_record *
+lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
+ uint16_t *next_fcf_index)
+{
+ void *virt_addr;
+ struct lpfc_mbx_sge sge;
+ struct lpfc_mbx_read_fcf_tbl *read_fcf;
+ uint32_t shdr_status, shdr_add_status, if_type;
+ union lpfc_sli4_cfg_shdr *shdr;
+ struct fcf_record *new_fcf_record;
+
+ /* Get the first SGE entry from the non-embedded DMA memory. This
+ * routine only uses a single SGE.
+ */
+ lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
+ if (unlikely(!mboxq->sge_array)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "2524 Failed to get the non-embedded SGE "
+ "virtual address\n");
+ return NULL;
+ }
+ virt_addr = mboxq->sge_array->addr[0];
+
+ shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
+ lpfc_sli_pcimem_bcopy(shdr, shdr,
+ sizeof(union lpfc_sli4_cfg_shdr));
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status) {
+ if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
+ if_type == LPFC_SLI_INTF_IF_TYPE_2)
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2726 READ_FCF_RECORD Indicates empty "
+ "FCF table.\n");
+ else
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2521 READ_FCF_RECORD mailbox failed "
+ "with status x%x add_status x%x, "
+ "mbx\n", shdr_status, shdr_add_status);
+ return NULL;
+ }
+
+ /* Interpreting the returned information of the FCF record */
+ read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
+ lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
+ sizeof(struct lpfc_mbx_read_fcf_tbl));
+ *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
+ new_fcf_record = (struct fcf_record *)(virt_addr +
+ sizeof(struct lpfc_mbx_read_fcf_tbl));
+ lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
+ offsetof(struct fcf_record, vlan_bitmap));
+ new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
+ new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
+
+ return new_fcf_record;
+}
+
+/**
+ * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_record: pointer to the fcf record.
+ * @vlan_id: the lowest vlan identifier associated to this fcf record.
+ * @next_fcf_index: the index to the next fcf record in hba's fcf table.
+ *
+ * This routine logs the detailed FCF record if the LOG_FIP loggin is
+ * enabled.
+ **/
+static void
+lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
+ struct fcf_record *fcf_record,
+ uint16_t vlan_id,
+ uint16_t next_fcf_index)
+{
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2764 READ_FCF_RECORD:\n"
+ "\tFCF_Index : x%x\n"
+ "\tFCF_Avail : x%x\n"
+ "\tFCF_Valid : x%x\n"
+ "\tFCF_SOL : x%x\n"
+ "\tFIP_Priority : x%x\n"
+ "\tMAC_Provider : x%x\n"
+ "\tLowest VLANID : x%x\n"
+ "\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
+ "\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
+ "\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
+ "\tNext_FCF_Index: x%x\n",
+ bf_get(lpfc_fcf_record_fcf_index, fcf_record),
+ bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
+ bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
+ bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
+ fcf_record->fip_priority,
+ bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
+ vlan_id,
+ bf_get(lpfc_fcf_record_mac_0, fcf_record),
+ bf_get(lpfc_fcf_record_mac_1, fcf_record),
+ bf_get(lpfc_fcf_record_mac_2, fcf_record),
+ bf_get(lpfc_fcf_record_mac_3, fcf_record),
+ bf_get(lpfc_fcf_record_mac_4, fcf_record),
+ bf_get(lpfc_fcf_record_mac_5, fcf_record),
+ bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
+ bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
+ bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
+ bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
+ bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
+ bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
+ bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
+ bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
+ bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
+ bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
+ bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
+ bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
+ bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
+ bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
+ bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
+ bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
+ next_fcf_index);
+}
+
+/**
+ lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_rec: pointer to an existing FCF record.
+ * @new_fcf_record: pointer to a new FCF record.
+ * @new_vlan_id: vlan id from the new FCF record.
+ *
+ * This function performs matching test of a new FCF record against an existing
+ * FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
+ * will not be used as part of the FCF record matching criteria.
+ *
+ * Returns true if all the fields matching, otherwise returns false.
+ */
+static bool
+lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
+ struct lpfc_fcf_rec *fcf_rec,
+ struct fcf_record *new_fcf_record,
+ uint16_t new_vlan_id)
+{
+ if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
+ if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
+ return false;
+ if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
+ return false;
+ if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
+ return false;
+ if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
+ return false;
+ if (fcf_rec->priority != new_fcf_record->fip_priority)
+ return false;
+ return true;
+}
+
+/**
+ * lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
+ * @vport: Pointer to vport object.
+ * @fcf_index: index to next fcf.
+ *
+ * This function processing the roundrobin fcf failover to next fcf index.
+ * When this function is invoked, there will be a current fcf registered
+ * for flogi.
+ * Return: 0 for continue retrying flogi on currently registered fcf;
+ * 1 for stop flogi on currently registered fcf;
+ */
+int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
+{
+ struct lpfc_hba *phba = vport->phba;
+ int rc;
+
+ if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
+ spin_lock_irq(&phba->hbalock);
+ if (phba->hba_flag & HBA_DEVLOSS_TMO) {
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2872 Devloss tmo with no eligible "
+ "FCF, unregister in-use FCF (x%x) "
+ "and rescan FCF table\n",
+ phba->fcf.current_rec.fcf_indx);
+ lpfc_unregister_fcf_rescan(phba);
+ goto stop_flogi_current_fcf;
+ }
+ /* Mark the end to FLOGI roundrobin failover */
+ phba->hba_flag &= ~FCF_RR_INPROG;
+ /* Allow action to new fcf asynchronous event */
+ phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2865 No FCF available, stop roundrobin FCF "
+ "failover and change port state:x%x/x%x\n",
+ phba->pport->port_state, LPFC_VPORT_UNKNOWN);
+ phba->pport->port_state = LPFC_VPORT_UNKNOWN;
+ goto stop_flogi_current_fcf;
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
+ "2794 Try FLOGI roundrobin FCF failover to "
+ "(x%x)\n", fcf_index);
+ rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
+ if (rc)
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
+ "2761 FLOGI roundrobin FCF failover "
+ "failed (rc:x%x) to read FCF (x%x)\n",
+ rc, phba->fcf.current_rec.fcf_indx);
+ else
+ goto stop_flogi_current_fcf;
+ }
+ return 0;
+
+stop_flogi_current_fcf:
+ lpfc_can_disctmo(vport);
+ return 1;
+}
+
+/**
+ * lpfc_sli4_fcf_pri_list_del
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_index the index of the fcf record to delete
+ * This routine checks the on list flag of the fcf_index to be deleted.
+ * If it is one the list then it is removed from the list, and the flag
+ * is cleared. This routine grab the hbalock before removing the fcf
+ * record from the list.
+ **/
+static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
+ uint16_t fcf_index)
+{
+ struct lpfc_fcf_pri *new_fcf_pri;
+
+ new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "3058 deleting idx x%x pri x%x flg x%x\n",
+ fcf_index, new_fcf_pri->fcf_rec.priority,
+ new_fcf_pri->fcf_rec.flag);
+ spin_lock_irq(&phba->hbalock);
+ if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
+ if (phba->fcf.current_rec.priority ==
+ new_fcf_pri->fcf_rec.priority)
+ phba->fcf.eligible_fcf_cnt--;
+ list_del_init(&new_fcf_pri->list);
+ new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
+ }
+ spin_unlock_irq(&phba->hbalock);
+}
+
+/**
+ * lpfc_sli4_set_fcf_flogi_fail
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_index the index of the fcf record to update
+ * This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
+ * flag so the the round robin slection for the particular priority level
+ * will try a different fcf record that does not have this bit set.
+ * If the fcf record is re-read for any reason this flag is cleared brfore
+ * adding it to the priority list.
+ **/
+void
+lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
+{
+ struct lpfc_fcf_pri *new_fcf_pri;
+ new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
+ spin_lock_irq(&phba->hbalock);
+ new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
+ spin_unlock_irq(&phba->hbalock);
+}
+
+/**
+ * lpfc_sli4_fcf_pri_list_add
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_index the index of the fcf record to add
+ * This routine checks the priority of the fcf_index to be added.
+ * If it is a lower priority than the current head of the fcf_pri list
+ * then it is added to the list in the right order.
+ * If it is the same priority as the current head of the list then it
+ * is added to the head of the list and its bit in the rr_bmask is set.
+ * If the fcf_index to be added is of a higher priority than the current
+ * head of the list then the rr_bmask is cleared, its bit is set in the
+ * rr_bmask and it is added to the head of the list.
+ * returns:
+ * 0=success 1=failure
+ **/
+static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
+ uint16_t fcf_index,
+ struct fcf_record *new_fcf_record)
+{
+ uint16_t current_fcf_pri;
+ uint16_t last_index;
+ struct lpfc_fcf_pri *fcf_pri;
+ struct lpfc_fcf_pri *next_fcf_pri;
+ struct lpfc_fcf_pri *new_fcf_pri;
+ int ret;
+
+ new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "3059 adding idx x%x pri x%x flg x%x\n",
+ fcf_index, new_fcf_record->fip_priority,
+ new_fcf_pri->fcf_rec.flag);
+ spin_lock_irq(&phba->hbalock);
+ if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
+ list_del_init(&new_fcf_pri->list);
+ new_fcf_pri->fcf_rec.fcf_index = fcf_index;
+ new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
+ if (list_empty(&phba->fcf.fcf_pri_list)) {
+ list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
+ ret = lpfc_sli4_fcf_rr_index_set(phba,
+ new_fcf_pri->fcf_rec.fcf_index);
+ goto out;
+ }
+
+ last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
+ LPFC_SLI4_FCF_TBL_INDX_MAX);
+ if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
+ ret = 0; /* Empty rr list */
+ goto out;
+ }
+ current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
+ if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
+ list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
+ if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
+ memset(phba->fcf.fcf_rr_bmask, 0,
+ sizeof(*phba->fcf.fcf_rr_bmask));
+ /* fcfs_at_this_priority_level = 1; */
+ phba->fcf.eligible_fcf_cnt = 1;
+ } else
+ /* fcfs_at_this_priority_level++; */
+ phba->fcf.eligible_fcf_cnt++;
+ ret = lpfc_sli4_fcf_rr_index_set(phba,
+ new_fcf_pri->fcf_rec.fcf_index);
+ goto out;
+ }
+
+ list_for_each_entry_safe(fcf_pri, next_fcf_pri,
+ &phba->fcf.fcf_pri_list, list) {
+ if (new_fcf_pri->fcf_rec.priority <=
+ fcf_pri->fcf_rec.priority) {
+ if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
+ list_add(&new_fcf_pri->list,
+ &phba->fcf.fcf_pri_list);
+ else
+ list_add(&new_fcf_pri->list,
+ &((struct lpfc_fcf_pri *)
+ fcf_pri->list.prev)->list);
+ ret = 0;
+ goto out;
+ } else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
+ || new_fcf_pri->fcf_rec.priority <
+ next_fcf_pri->fcf_rec.priority) {
+ list_add(&new_fcf_pri->list, &fcf_pri->list);
+ ret = 0;
+ goto out;
+ }
+ if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
+ continue;
+
+ }
+ ret = 1;
+out:
+ /* we use = instead of |= to clear the FLOGI_FAILED flag. */
+ new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
+ spin_unlock_irq(&phba->hbalock);
+ return ret;
+}
+
+/**
+ * lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox object.
+ *
+ * This function iterates through all the fcf records available in
+ * HBA and chooses the optimal FCF record for discovery. After finding
+ * the FCF for discovery it registers the FCF record and kicks start
+ * discovery.
+ * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
+ * use an FCF record which matches fabric name and mac address of the
+ * currently used FCF record.
+ * If the driver supports only one FCF, it will try to use the FCF record
+ * used by BOOT_BIOS.
+ */
+void
+lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct fcf_record *new_fcf_record;
+ uint32_t boot_flag, addr_mode;
+ uint16_t fcf_index, next_fcf_index;
+ struct lpfc_fcf_rec *fcf_rec = NULL;
+ uint16_t vlan_id = LPFC_FCOE_NULL_VID;
+ bool select_new_fcf;
+ int rc;
+
+ /* If there is pending FCoE event restart FCF table scan */
+ if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return;
+ }
+
+ /* Parse the FCF record from the non-embedded mailbox command */
+ new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
+ &next_fcf_index);
+ if (!new_fcf_record) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2765 Mailbox command READ_FCF_RECORD "
+ "failed to retrieve a FCF record.\n");
+ /* Let next new FCF event trigger fast failover */
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~FCF_TS_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return;
+ }
+
+ /* Check the FCF record against the connection list */
+ rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
+ &addr_mode, &vlan_id);
+
+ /* Log the FCF record information if turned on */
+ lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
+ next_fcf_index);
+
+ /*
+ * If the fcf record does not match with connect list entries
+ * read the next entry; otherwise, this is an eligible FCF
+ * record for roundrobin FCF failover.
+ */
+ if (!rc) {
+ lpfc_sli4_fcf_pri_list_del(phba,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
+ "2781 FCF (x%x) failed connection "
+ "list check: (x%x/x%x/%x)\n",
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record),
+ bf_get(lpfc_fcf_record_fcf_avail,
+ new_fcf_record),
+ bf_get(lpfc_fcf_record_fcf_valid,
+ new_fcf_record),
+ bf_get(lpfc_fcf_record_fcf_sol,
+ new_fcf_record));
+ if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
+ lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
+ new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
+ if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
+ phba->fcf.current_rec.fcf_indx) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2862 FCF (x%x) matches property "
+ "of in-use FCF (x%x)\n",
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record),
+ phba->fcf.current_rec.fcf_indx);
+ goto read_next_fcf;
+ }
+ /*
+ * In case the current in-use FCF record becomes
+ * invalid/unavailable during FCF discovery that
+ * was not triggered by fast FCF failover process,
+ * treat it as fast FCF failover.
+ */
+ if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
+ !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
+ "2835 Invalid in-use FCF "
+ "(x%x), enter FCF failover "
+ "table scan.\n",
+ phba->fcf.current_rec.fcf_indx);
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag |= FCF_REDISC_FOV;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ lpfc_sli4_fcf_scan_read_fcf_rec(phba,
+ LPFC_FCOE_FCF_GET_FIRST);
+ return;
+ }
+ }
+ goto read_next_fcf;
+ } else {
+ fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
+ rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
+ new_fcf_record);
+ if (rc)
+ goto read_next_fcf;
+ }
+
+ /*
+ * If this is not the first FCF discovery of the HBA, use last
+ * FCF record for the discovery. The condition that a rescan
+ * matches the in-use FCF record: fabric name, switch name, mac
+ * address, and vlan_id.
+ */
+ spin_lock_irq(&phba->hbalock);
+ if (phba->fcf.fcf_flag & FCF_IN_USE) {
+ if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
+ lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
+ new_fcf_record, vlan_id)) {
+ if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
+ phba->fcf.current_rec.fcf_indx) {
+ phba->fcf.fcf_flag |= FCF_AVAILABLE;
+ if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
+ /* Stop FCF redisc wait timer */
+ __lpfc_sli4_stop_fcf_redisc_wait_timer(
+ phba);
+ else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
+ /* Fast failover, mark completed */
+ phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2836 New FCF matches in-use "
+ "FCF (x%x), port_state:x%x, "
+ "fc_flag:x%x\n",
+ phba->fcf.current_rec.fcf_indx,
+ phba->pport->port_state,
+ phba->pport->fc_flag);
+ goto out;
+ } else
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2863 New FCF (x%x) matches "
+ "property of in-use FCF (x%x)\n",
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record),
+ phba->fcf.current_rec.fcf_indx);
+ }
+ /*
+ * Read next FCF record from HBA searching for the matching
+ * with in-use record only if not during the fast failover
+ * period. In case of fast failover period, it shall try to
+ * determine whether the FCF record just read should be the
+ * next candidate.
+ */
+ if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+ }
+ }
+ /*
+ * Update on failover FCF record only if it's in FCF fast-failover
+ * period; otherwise, update on current FCF record.
+ */
+ if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
+ fcf_rec = &phba->fcf.failover_rec;
+ else
+ fcf_rec = &phba->fcf.current_rec;
+
+ if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
+ /*
+ * If the driver FCF record does not have boot flag
+ * set and new hba fcf record has boot flag set, use
+ * the new hba fcf record.
+ */
+ if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
+ /* Choose this FCF record */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2837 Update current FCF record "
+ "(x%x) with new FCF record (x%x)\n",
+ fcf_rec->fcf_indx,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
+ addr_mode, vlan_id, BOOT_ENABLE);
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+ }
+ /*
+ * If the driver FCF record has boot flag set and the
+ * new hba FCF record does not have boot flag, read
+ * the next FCF record.
+ */
+ if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+ }
+ /*
+ * If the new hba FCF record has lower priority value
+ * than the driver FCF record, use the new record.
+ */
+ if (new_fcf_record->fip_priority < fcf_rec->priority) {
+ /* Choose the new FCF record with lower priority */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2838 Update current FCF record "
+ "(x%x) with new FCF record (x%x)\n",
+ fcf_rec->fcf_indx,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
+ addr_mode, vlan_id, 0);
+ /* Reset running random FCF selection count */
+ phba->fcf.eligible_fcf_cnt = 1;
+ } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
+ /* Update running random FCF selection count */
+ phba->fcf.eligible_fcf_cnt++;
+ select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
+ phba->fcf.eligible_fcf_cnt);
+ if (select_new_fcf) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2839 Update current FCF record "
+ "(x%x) with new FCF record (x%x)\n",
+ fcf_rec->fcf_indx,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ /* Choose the new FCF by random selection */
+ __lpfc_update_fcf_record(phba, fcf_rec,
+ new_fcf_record,
+ addr_mode, vlan_id, 0);
+ }
+ }
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+ }
+ /*
+ * This is the first suitable FCF record, choose this record for
+ * initial best-fit FCF.
+ */
+ if (fcf_rec) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2840 Update initial FCF candidate "
+ "with FCF (x%x)\n",
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
+ addr_mode, vlan_id, (boot_flag ?
+ BOOT_ENABLE : 0));
+ phba->fcf.fcf_flag |= FCF_AVAILABLE;
+ /* Setup initial running random FCF selection count */
+ phba->fcf.eligible_fcf_cnt = 1;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+
+read_next_fcf:
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
+ if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
+ /*
+ * Case of FCF fast failover scan
+ */
+
+ /*
+ * It has not found any suitable FCF record, cancel
+ * FCF scan inprogress, and do nothing
+ */
+ if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
+ "2782 No suitable FCF found: "
+ "(x%x/x%x)\n",
+ phba->fcoe_eventtag_at_fcf_scan,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ spin_lock_irq(&phba->hbalock);
+ if (phba->hba_flag & HBA_DEVLOSS_TMO) {
+ phba->hba_flag &= ~FCF_TS_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ /* Unregister in-use FCF and rescan */
+ lpfc_printf_log(phba, KERN_INFO,
+ LOG_FIP,
+ "2864 On devloss tmo "
+ "unreg in-use FCF and "
+ "rescan FCF table\n");
+ lpfc_unregister_fcf_rescan(phba);
+ return;
+ }
+ /*
+ * Let next new FCF event trigger fast failover
+ */
+ phba->hba_flag &= ~FCF_TS_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+ /*
+ * It has found a suitable FCF record that is not
+ * the same as in-use FCF record, unregister the
+ * in-use FCF record, replace the in-use FCF record
+ * with the new FCF record, mark FCF fast failover
+ * completed, and then start register the new FCF
+ * record.
+ */
+
+ /* Unregister the current in-use FCF record */
+ lpfc_unregister_fcf(phba);
+
+ /* Replace in-use record with the new record */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2842 Replace in-use FCF (x%x) "
+ "with failover FCF (x%x)\n",
+ phba->fcf.current_rec.fcf_indx,
+ phba->fcf.failover_rec.fcf_indx);
+ memcpy(&phba->fcf.current_rec,
+ &phba->fcf.failover_rec,
+ sizeof(struct lpfc_fcf_rec));
+ /*
+ * Mark the fast FCF failover rediscovery completed
+ * and the start of the first round of the roundrobin
+ * FCF failover.
+ */
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
+ spin_unlock_irq(&phba->hbalock);
+ /* Register to the new FCF record */
+ lpfc_register_fcf(phba);
+ } else {
+ /*
+ * In case of transaction period to fast FCF failover,
+ * do nothing when search to the end of the FCF table.
+ */
+ if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
+ (phba->fcf.fcf_flag & FCF_REDISC_PEND))
+ return;
+
+ if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
+ phba->fcf.fcf_flag & FCF_IN_USE) {
+ /*
+ * In case the current in-use FCF record no
+ * longer existed during FCF discovery that
+ * was not triggered by fast FCF failover
+ * process, treat it as fast FCF failover.
+ */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2841 In-use FCF record (x%x) "
+ "not reported, entering fast "
+ "FCF failover mode scanning.\n",
+ phba->fcf.current_rec.fcf_indx);
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag |= FCF_REDISC_FOV;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli4_fcf_scan_read_fcf_rec(phba,
+ LPFC_FCOE_FCF_GET_FIRST);
+ return;
+ }
+ /* Register to the new FCF record */
+ lpfc_register_fcf(phba);
+ }
+ } else
+ lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
+ return;
+
+out:
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ lpfc_register_fcf(phba);
+
+ return;
+}
+
+/**
+ * lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox object.
+ *
+ * This is the callback function for FLOGI failure roundrobin FCF failover
+ * read FCF record mailbox command from the eligible FCF record bmask for
+ * performing the failover. If the FCF read back is not valid/available, it
+ * fails through to retrying FLOGI to the currently registered FCF again.
+ * Otherwise, if the FCF read back is valid and available, it will set the
+ * newly read FCF record to the failover FCF record, unregister currently
+ * registered FCF record, copy the failover FCF record to the current
+ * FCF record, and then register the current FCF record before proceeding
+ * to trying FLOGI on the new failover FCF.
+ */
+void
+lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct fcf_record *new_fcf_record;
+ uint32_t boot_flag, addr_mode;
+ uint16_t next_fcf_index, fcf_index;
+ uint16_t current_fcf_index;
+ uint16_t vlan_id;
+ int rc;
+
+ /* If link state is not up, stop the roundrobin failover process */
+ if (phba->link_state < LPFC_LINK_UP) {
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
+ phba->hba_flag &= ~FCF_RR_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ goto out;
+ }
+
+ /* Parse the FCF record from the non-embedded mailbox command */
+ new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
+ &next_fcf_index);
+ if (!new_fcf_record) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
+ "2766 Mailbox command READ_FCF_RECORD "
+ "failed to retrieve a FCF record. "
+ "hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
+ phba->fcf.fcf_flag);
+ lpfc_unregister_fcf_rescan(phba);
+ goto out;
+ }
+
+ /* Get the needed parameters from FCF record */
+ rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
+ &addr_mode, &vlan_id);
+
+ /* Log the FCF record information if turned on */
+ lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
+ next_fcf_index);
+
+ fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
+ if (!rc) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2848 Remove ineligible FCF (x%x) from "
+ "from roundrobin bmask\n", fcf_index);
+ /* Clear roundrobin bmask bit for ineligible FCF */
+ lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
+ /* Perform next round of roundrobin FCF failover */
+ fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
+ rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
+ if (rc)
+ goto out;
+ goto error_out;
+ }
+
+ if (fcf_index == phba->fcf.current_rec.fcf_indx) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2760 Perform FLOGI roundrobin FCF failover: "
+ "FCF (x%x) back to FCF (x%x)\n",
+ phba->fcf.current_rec.fcf_indx, fcf_index);
+ /* Wait 500 ms before retrying FLOGI to current FCF */
+ msleep(500);
+ lpfc_issue_init_vfi(phba->pport);
+ goto out;
+ }
+
+ /* Upload new FCF record to the failover FCF record */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2834 Update current FCF (x%x) with new FCF (x%x)\n",
+ phba->fcf.failover_rec.fcf_indx, fcf_index);
+ spin_lock_irq(&phba->hbalock);
+ __lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
+ new_fcf_record, addr_mode, vlan_id,
+ (boot_flag ? BOOT_ENABLE : 0));
+ spin_unlock_irq(&phba->hbalock);
+
+ current_fcf_index = phba->fcf.current_rec.fcf_indx;
+
+ /* Unregister the current in-use FCF record */
+ lpfc_unregister_fcf(phba);
+
+ /* Replace in-use record with the new record */
+ memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
+ sizeof(struct lpfc_fcf_rec));
+
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2783 Perform FLOGI roundrobin FCF failover: FCF "
+ "(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
+
+error_out:
+ lpfc_register_fcf(phba);
+out:
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+}
+
+/**
+ * lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox object.
+ *
+ * This is the callback function of read FCF record mailbox command for
+ * updating the eligible FCF bmask for FLOGI failure roundrobin FCF
+ * failover when a new FCF event happened. If the FCF read back is
+ * valid/available and it passes the connection list check, it updates
+ * the bmask for the eligible FCF record for roundrobin failover.
+ */
+void
+lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct fcf_record *new_fcf_record;
+ uint32_t boot_flag, addr_mode;
+ uint16_t fcf_index, next_fcf_index;
+ uint16_t vlan_id;
+ int rc;
+
+ /* If link state is not up, no need to proceed */
+ if (phba->link_state < LPFC_LINK_UP)
+ goto out;
+
+ /* If FCF discovery period is over, no need to proceed */
+ if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
+ goto out;
+
+ /* Parse the FCF record from the non-embedded mailbox command */
+ new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
+ &next_fcf_index);
+ if (!new_fcf_record) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2767 Mailbox command READ_FCF_RECORD "
+ "failed to retrieve a FCF record.\n");
+ goto out;
+ }
+
+ /* Check the connection list for eligibility */
+ rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
+ &addr_mode, &vlan_id);
+
+ /* Log the FCF record information if turned on */
+ lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
+ next_fcf_index);
+
+ if (!rc)
+ goto out;
+
+ /* Update the eligible FCF record index bmask */
+ fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
+
+ rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
+
+out:
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+}
+
+/**
+ * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox data structure.
+ *
+ * This function handles completion of init vfi mailbox command.
+ */
+static void
+lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_vport *vport = mboxq->vport;
+
+ /*
+ * VFI not supported on interface type 0, just do the flogi
+ * Also continue if the VFI is in use - just use the same one.
+ */
+ if (mboxq->u.mb.mbxStatus &&
+ (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
+ LPFC_SLI_INTF_IF_TYPE_0) &&
+ mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_MBOX,
+ "2891 Init VFI mailbox failed 0x%x\n",
+ mboxq->u.mb.mbxStatus);
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ return;
+ }
+
+ lpfc_initial_flogi(vport);
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_issue_init_vfi - Issue init_vfi mailbox command.
+ * @vport: pointer to lpfc_vport data structure.
+ *
+ * This function issue a init_vfi mailbox command to initialize the VFI and
+ * VPI for the physical port.
+ */
+void
+lpfc_issue_init_vfi(struct lpfc_vport *vport)
+{
+ LPFC_MBOXQ_t *mboxq;
+ int rc;
+ struct lpfc_hba *phba = vport->phba;
+
+ mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_MBOX, "2892 Failed to allocate "
+ "init_vfi mailbox\n");
+ return;
+ }
+ lpfc_init_vfi(mboxq, vport);
+ mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_MBOX, "2893 Failed to issue init_vfi mailbox\n");
+ mempool_free(mboxq, vport->phba->mbox_mem_pool);
+ }
+}
+
+/**
+ * lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox data structure.
+ *
+ * This function handles completion of init vpi mailbox command.
+ */
+void
+lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_vport *vport = mboxq->vport;
+ struct lpfc_nodelist *ndlp;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ if (mboxq->u.mb.mbxStatus) {
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_MBOX,
+ "2609 Init VPI mailbox failed 0x%x\n",
+ mboxq->u.mb.mbxStatus);
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ return;
+ }
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
+ spin_unlock_irq(shost->host_lock);
+
+ /* If this port is physical port or FDISC is done, do reg_vpi */
+ if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
+ ndlp = lpfc_findnode_did(vport, Fabric_DID);
+ if (!ndlp)
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_DISCOVERY,
+ "2731 Cannot find fabric "
+ "controller node\n");
+ else
+ lpfc_register_new_vport(phba, vport, ndlp);
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return;
+ }
+
+ if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
+ lpfc_initial_fdisc(vport);
+ else {
+ lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "2606 No NPIV Fabric support\n");
+ }
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_issue_init_vpi - Issue init_vpi mailbox command.
+ * @vport: pointer to lpfc_vport data structure.
+ *
+ * This function issue a init_vpi mailbox command to initialize
+ * VPI for the vport.
+ */
+void
+lpfc_issue_init_vpi(struct lpfc_vport *vport)
+{
+ LPFC_MBOXQ_t *mboxq;
+ int rc, vpi;
+
+ if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
+ vpi = lpfc_alloc_vpi(vport->phba);
+ if (!vpi) {
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_MBOX,
+ "3303 Failed to obtain vport vpi\n");
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ return;
+ }
+ vport->vpi = vpi;
+ }
+
+ mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_MBOX, "2607 Failed to allocate "
+ "init_vpi mailbox\n");
+ return;
+ }
+ lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
+ mboxq->vport = vport;
+ mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
+ rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_vlog(vport, KERN_ERR,
+ LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
+ mempool_free(mboxq, vport->phba->mbox_mem_pool);
+ }
+}
+
+/**
+ * lpfc_start_fdiscs - send fdiscs for each vports on this port.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This function loops through the list of vports on the @phba and issues an
+ * FDISC if possible.
+ */
+void
+lpfc_start_fdiscs(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ int i;
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL) {
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
+ continue;
+ /* There are no vpi for this vport */
+ if (vports[i]->vpi > phba->max_vpi) {
+ lpfc_vport_set_state(vports[i],
+ FC_VPORT_FAILED);
+ continue;
+ }
+ if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
+ lpfc_vport_set_state(vports[i],
+ FC_VPORT_LINKDOWN);
+ continue;
+ }
+ if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
+ lpfc_issue_init_vpi(vports[i]);
+ continue;
+ }
+ if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
+ lpfc_initial_fdisc(vports[i]);
+ else {
+ lpfc_vport_set_state(vports[i],
+ FC_VPORT_NO_FABRIC_SUPP);
+ lpfc_printf_vlog(vports[i], KERN_ERR,
+ LOG_ELS,
+ "0259 No NPIV "
+ "Fabric support\n");
+ }
+ }
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+}
+
+void
+lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_dmabuf *dmabuf = mboxq->context1;
+ struct lpfc_vport *vport = mboxq->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ /*
+ * VFI not supported for interface type 0, so ignore any mailbox
+ * error (except VFI in use) and continue with the discovery.
+ */
+ if (mboxq->u.mb.mbxStatus &&
+ (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
+ LPFC_SLI_INTF_IF_TYPE_0) &&
+ mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "2018 REG_VFI mbxStatus error x%x "
+ "HBA state x%x\n",
+ mboxq->u.mb.mbxStatus, vport->port_state);
+ if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
+ /* FLOGI failed, use loop map to make discovery list */
+ lpfc_disc_list_loopmap(vport);
+ /* Start discovery */
+ lpfc_disc_start(vport);
+ goto out_free_mem;
+ }
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ goto out_free_mem;
+ }
+
+ /* If the VFI is already registered, there is nothing else to do
+ * Unless this was a VFI update and we are in PT2PT mode, then
+ * we should drop through to set the port state to ready.
+ */
+ if (vport->fc_flag & FC_VFI_REGISTERED)
+ if (!(phba->sli_rev == LPFC_SLI_REV4 &&
+ vport->fc_flag & FC_PT2PT))
+ goto out_free_mem;
+
+ /* The VPI is implicitly registered when the VFI is registered */
+ spin_lock_irq(shost->host_lock);
+ vport->vpi_state |= LPFC_VPI_REGISTERED;
+ vport->fc_flag |= FC_VFI_REGISTERED;
+ vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
+ vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
+ spin_unlock_irq(shost->host_lock);
+
+ /* In case SLI4 FC loopback test, we are ready */
+ if ((phba->sli_rev == LPFC_SLI_REV4) &&
+ (phba->link_flag & LS_LOOPBACK_MODE)) {
+ phba->link_state = LPFC_HBA_READY;
+ goto out_free_mem;
+ }
+
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
+ "3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
+ "alpacnt:%d LinkState:%x topology:%x\n",
+ vport->port_state, vport->fc_flag, vport->fc_myDID,
+ vport->phba->alpa_map[0],
+ phba->link_state, phba->fc_topology);
+
+ if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
+ /*
+ * For private loop or for NPort pt2pt,
+ * just start discovery and we are done.
+ */
+ if ((vport->fc_flag & FC_PT2PT) ||
+ ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
+ !(vport->fc_flag & FC_PUBLIC_LOOP))) {
+
+ /* Use loop map to make discovery list */
+ lpfc_disc_list_loopmap(vport);
+ /* Start discovery */
+ if (vport->fc_flag & FC_PT2PT)
+ vport->port_state = LPFC_VPORT_READY;
+ else
+ lpfc_disc_start(vport);
+ } else {
+ lpfc_start_fdiscs(phba);
+ lpfc_do_scr_ns_plogi(phba, vport);
+ }
+ }
+
+out_free_mem:
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ if (dmabuf) {
+ lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
+ kfree(dmabuf);
+ }
+ return;
+}
+
+static void
+lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ MAILBOX_t *mb = &pmb->u.mb;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct serv_parm *sp = &vport->fc_sparam;
+ uint32_t ed_tov;
+
+ /* Check for error */
+ if (mb->mbxStatus) {
+ /* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0319 READ_SPARAM mbxStatus error x%x "
+ "hba state x%x>\n",
+ mb->mbxStatus, vport->port_state);
+ lpfc_linkdown(phba);
+ goto out;
+ }
+
+ memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
+ sizeof (struct serv_parm));
+
+ ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
+ if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
+ ed_tov = (ed_tov + 999999) / 1000000;
+
+ phba->fc_edtov = ed_tov;
+ phba->fc_ratov = (2 * ed_tov) / 1000;
+ if (phba->fc_ratov < FF_DEF_RATOV) {
+ /* RA_TOV should be atleast 10sec for initial flogi */
+ phba->fc_ratov = FF_DEF_RATOV;
+ }
+
+ lpfc_update_vport_wwn(vport);
+ fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
+ if (vport->port_type == LPFC_PHYSICAL_PORT) {
+ memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
+ memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
+ }
+
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return;
+
+out:
+ pmb->context1 = NULL;
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ lpfc_issue_clear_la(phba, vport);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return;
+}
+
+static void
+lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
+{
+ struct lpfc_vport *vport = phba->pport;
+ LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
+ struct Scsi_Host *shost;
+ int i;
+ struct lpfc_dmabuf *mp;
+ int rc;
+ struct fcf_record *fcf_record;
+ uint32_t fc_flags = 0;
+
+ spin_lock_irq(&phba->hbalock);
+ phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
+
+ if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+ switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
+ case LPFC_LINK_SPEED_1GHZ:
+ case LPFC_LINK_SPEED_2GHZ:
+ case LPFC_LINK_SPEED_4GHZ:
+ case LPFC_LINK_SPEED_8GHZ:
+ case LPFC_LINK_SPEED_10GHZ:
+ case LPFC_LINK_SPEED_16GHZ:
+ case LPFC_LINK_SPEED_32GHZ:
+ case LPFC_LINK_SPEED_64GHZ:
+ break;
+ default:
+ phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
+ break;
+ }
+ }
+
+ if (phba->fc_topology &&
+ phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+ "3314 Toplogy changed was 0x%x is 0x%x\n",
+ phba->fc_topology,
+ bf_get(lpfc_mbx_read_top_topology, la));
+ phba->fc_topology_changed = 1;
+ }
+
+ phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
+ phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
+
+ shost = lpfc_shost_from_vport(vport);
+ if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
+ phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
+
+ /* if npiv is enabled and this adapter supports npiv log
+ * a message that npiv is not supported in this topology
+ */
+ if (phba->cfg_enable_npiv && phba->max_vpi)
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1309 Link Up Event npiv not supported in loop "
+ "topology\n");
+ /* Get Loop Map information */
+ if (bf_get(lpfc_mbx_read_top_il, la))
+ fc_flags |= FC_LBIT;
+
+ vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
+ i = la->lilpBde64.tus.f.bdeSize;
+
+ if (i == 0) {
+ phba->alpa_map[0] = 0;
+ } else {
+ if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
+ int numalpa, j, k;
+ union {
+ uint8_t pamap[16];
+ struct {
+ uint32_t wd1;
+ uint32_t wd2;
+ uint32_t wd3;
+ uint32_t wd4;
+ } pa;
+ } un;
+ numalpa = phba->alpa_map[0];
+ j = 0;
+ while (j < numalpa) {
+ memset(un.pamap, 0, 16);
+ for (k = 1; j < numalpa; k++) {
+ un.pamap[k - 1] =
+ phba->alpa_map[j + 1];
+ j++;
+ if (k == 16)
+ break;
+ }
+ /* Link Up Event ALPA map */
+ lpfc_printf_log(phba,
+ KERN_WARNING,
+ LOG_LINK_EVENT,
+ "1304 Link Up Event "
+ "ALPA map Data: x%x "
+ "x%x x%x x%x\n",
+ un.pa.wd1, un.pa.wd2,
+ un.pa.wd3, un.pa.wd4);
+ }
+ }
+ }
+ } else {
+ if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
+ if (phba->max_vpi && phba->cfg_enable_npiv &&
+ (phba->sli_rev >= LPFC_SLI_REV3))
+ phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
+ }
+ vport->fc_myDID = phba->fc_pref_DID;
+ fc_flags |= FC_LBIT;
+ }
+ spin_unlock_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);
+ 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 (!(phba->hba_flag & HBA_FCOE_MODE)) {
+ cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!cfglink_mbox)
+ goto out;
+ vport->port_state = LPFC_LOCAL_CFG_LINK;
+ lpfc_config_link(phba, cfglink_mbox);
+ cfglink_mbox->vport = vport;
+ cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
+ rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(cfglink_mbox, phba->mbox_mem_pool);
+ goto out;
+ }
+ } else {
+ vport->port_state = LPFC_VPORT_UNKNOWN;
+ /*
+ * Add the driver's default FCF record at FCF index 0 now. This
+ * is phase 1 implementation that support FCF index 0 and driver
+ * defaults.
+ */
+ if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
+ fcf_record = kzalloc(sizeof(struct fcf_record),
+ GFP_KERNEL);
+ if (unlikely(!fcf_record)) {
+ lpfc_printf_log(phba, KERN_ERR,
+ LOG_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;
+ }
+ /* 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,
+ "0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
+ vport->port_state, sparam_mbox, cfglink_mbox);
+ lpfc_issue_clear_la(phba, vport);
+ return;
+}
+
+static void
+lpfc_enable_la(struct lpfc_hba *phba)
+{
+ uint32_t control;
+ struct lpfc_sli *psli = &phba->sli;
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag |= LPFC_PROCESS_LA;
+ if (phba->sli_rev <= LPFC_SLI_REV3) {
+ control = readl(phba->HCregaddr);
+ control |= HC_LAINT_ENA;
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ }
+ spin_unlock_irq(&phba->hbalock);
+}
+
+static void
+lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
+{
+ lpfc_linkdown(phba);
+ lpfc_enable_la(phba);
+ lpfc_unregister_unused_fcf(phba);
+ /* turn on Link Attention interrupts - no CLEAR_LA needed */
+}
+
+
+/*
+ * This routine handles processing a READ_TOPOLOGY mailbox
+ * command upon completion. It is setup in the LPFC_MBOXQ
+ * as the completion routine when the command is
+ * handed off to the SLI layer. SLI4 only.
+ */
+void
+lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_mbx_read_top *la;
+ struct lpfc_sli_ring *pring;
+ MAILBOX_t *mb = &pmb->u.mb;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
+ uint8_t attn_type;
+
+ /* Unblock ELS traffic */
+ pring = lpfc_phba_elsring(phba);
+ if (pring)
+ pring->flag &= ~LPFC_STOP_IOCB_EVENT;
+
+ /* Check for error */
+ if (mb->mbxStatus) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
+ "1307 READ_LA mbox error x%x state x%x\n",
+ mb->mbxStatus, vport->port_state);
+ lpfc_mbx_issue_link_down(phba);
+ phba->link_state = LPFC_HBA_ERROR;
+ goto lpfc_mbx_cmpl_read_topology_free_mbuf;
+ }
+
+ la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
+ attn_type = bf_get(lpfc_mbx_read_top_att_type, la);
+
+ memcpy(&phba->alpa_map[0], mp->virt, 128);
+
+ spin_lock_irq(shost->host_lock);
+ 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 <= la->eventTag) {
+ phba->fc_stat.LinkMultiEvent++;
+ if (attn_type == LPFC_ATT_LINK_UP)
+ if (phba->fc_eventTag != 0)
+ lpfc_linkdown(phba);
+ }
+
+ phba->fc_eventTag = la->eventTag;
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ spin_lock_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);
+ }
+
+ phba->link_events++;
+ if ((attn_type == LPFC_ATT_LINK_UP) &&
+ !(phba->sli.sli_flag & LPFC_MENLO_MAINT)) {
+ phba->fc_stat.LinkUp++;
+ if (phba->link_flag & LS_LOOPBACK_MODE) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1306 Link Up Event in loop back mode "
+ "x%x received Data: x%x x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ bf_get(lpfc_mbx_read_top_alpa_granted,
+ la),
+ bf_get(lpfc_mbx_read_top_link_spd, la),
+ phba->alpa_map[0]);
+ } else {
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1303 Link Up Event x%x received "
+ "Data: x%x x%x x%x x%x x%x x%x %d\n",
+ la->eventTag, phba->fc_eventTag,
+ bf_get(lpfc_mbx_read_top_alpa_granted,
+ la),
+ bf_get(lpfc_mbx_read_top_link_spd, la),
+ phba->alpa_map[0],
+ bf_get(lpfc_mbx_read_top_mm, la),
+ bf_get(lpfc_mbx_read_top_fa, la),
+ phba->wait_4_mlo_maint_flg);
+ }
+ lpfc_mbx_process_link_up(phba, la);
+ } else if (attn_type == LPFC_ATT_LINK_DOWN ||
+ attn_type == LPFC_ATT_UNEXP_WWPN) {
+ phba->fc_stat.LinkDown++;
+ if (phba->link_flag & LS_LOOPBACK_MODE)
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1308 Link Down Event in loop back mode "
+ "x%x received "
+ "Data: x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag);
+ else if (attn_type == LPFC_ATT_UNEXP_WWPN)
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1313 Link Down UNEXP WWPN Event x%x received "
+ "Data: x%x x%x x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag,
+ bf_get(lpfc_mbx_read_top_mm, la),
+ bf_get(lpfc_mbx_read_top_fa, la));
+ else
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1305 Link Down Event x%x received "
+ "Data: x%x x%x x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag,
+ bf_get(lpfc_mbx_read_top_mm, la),
+ bf_get(lpfc_mbx_read_top_fa, la));
+ lpfc_mbx_issue_link_down(phba);
+ }
+ if (phba->sli.sli_flag & LPFC_MENLO_MAINT &&
+ attn_type == LPFC_ATT_LINK_UP) {
+ if (phba->link_state != LPFC_LINK_DOWN) {
+ phba->fc_stat.LinkDown++;
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1312 Link Down Event x%x received "
+ "Data: x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag);
+ lpfc_mbx_issue_link_down(phba);
+ } else
+ lpfc_enable_la(phba);
+
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+ "1310 Menlo Maint Mode Link up Event x%x rcvd "
+ "Data: x%x x%x x%x\n",
+ la->eventTag, phba->fc_eventTag,
+ phba->pport->port_state, vport->fc_flag);
+ /*
+ * The cmnd that triggered this will be waiting for this
+ * signal.
+ */
+ /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
+ if (phba->wait_4_mlo_maint_flg) {
+ phba->wait_4_mlo_maint_flg = 0;
+ wake_up_interruptible(&phba->wait_4_mlo_m_q);
+ }
+ }
+
+ if ((phba->sli_rev < LPFC_SLI_REV4) &&
+ bf_get(lpfc_mbx_read_top_fa, la)) {
+ if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
+ lpfc_issue_clear_la(phba, vport);
+ lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
+ "1311 fa %d\n",
+ bf_get(lpfc_mbx_read_top_fa, la));
+ }
+
+lpfc_mbx_cmpl_read_topology_free_mbuf:
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return;
+}
+
+/*
+ * This routine handles processing a REG_LOGIN mailbox
+ * command upon completion. It is setup in the LPFC_MBOXQ
+ * as the completion routine when the command is
+ * handed off to the SLI layer.
+ */
+void
+lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->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;
+
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
+ "0002 rpi:%x DID:%x flg:%x %d map:%x %p\n",
+ ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
+ kref_read(&ndlp->kref),
+ ndlp->nlp_usg_map, ndlp);
+ if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
+ ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
+
+ if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
+ ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
+ /* We rcvd a rscn after issuing this
+ * mbox reg login, we may have cycled
+ * back through the state and be
+ * back at reg login state so this
+ * mbox needs to be ignored becase
+ * there is another reg login in
+ * process.
+ */
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
+ spin_unlock_irq(shost->host_lock);
+
+ /*
+ * We cannot leave the RPI registered because
+ * if we go thru discovery again for this ndlp
+ * a subsequent REG_RPI will fail.
+ */
+ ndlp->nlp_flag |= NLP_RPI_REGISTERED;
+ lpfc_unreg_rpi(vport, ndlp);
+ }
+
+ /* Call state machine */
+ lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
+
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
+ /* decrement the node reference count held for this callback
+ * function.
+ */
+ lpfc_nlp_put(ndlp);
+
+ return;
+}
+
+static void
+lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ MAILBOX_t *mb = &pmb->u.mb;
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ switch (mb->mbxStatus) {
+ case 0x0011:
+ case 0x0020:
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0911 cmpl_unreg_vpi, mb status = 0x%x\n",
+ mb->mbxStatus);
+ break;
+ /* If VPI is busy, reset the HBA */
+ case 0x9700:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_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) && (vport != phba->pport))
+ scsi_host_put(shost);
+}
+
+int
+lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox)
+ return 1;
+
+ lpfc_unreg_vpi(phba, vport->vpi, mbox);
+ mbox->vport = vport;
+ mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_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
+lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ MAILBOX_t *mb = &pmb->u.mb;
+
+ switch (mb->mbxStatus) {
+ case 0x0011:
+ case 0x9601:
+ case 0x9602:
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0912 cmpl_reg_vpi, mb status = 0x%x\n",
+ mb->mbxStatus);
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+ spin_unlock_irq(shost->host_lock);
+ vport->fc_myDID = 0;
+
+ if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
+ (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
+ if (phba->nvmet_support)
+ lpfc_nvmet_update_targetport(phba);
+ else
+ lpfc_nvme_update_localport(vport);
+ }
+ goto out;
+ }
+
+ spin_lock_irq(shost->host_lock);
+ vport->vpi_state |= LPFC_VPI_REGISTERED;
+ vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
+ vport->num_disc_nodes = 0;
+ /* go thru NPR list and issue ELS PLOGIs */
+ if (vport->fc_npr_cnt)
+ lpfc_els_disc_plogi(vport);
+
+ if (!vport->num_disc_nodes) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_NDISC_ACTIVE;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_can_disctmo(vport);
+ }
+ vport->port_state = LPFC_VPORT_READY;
+
+out:
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_create_static_vport - Read HBA config region to create static vports.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine issue a DUMP mailbox command for config region 22 to get
+ * the list of static vports to be created. The function create vports
+ * based on the information returned from the HBA.
+ **/
+void
+lpfc_create_static_vport(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *pmb = NULL;
+ MAILBOX_t *mb;
+ struct static_vport_info *vport_info;
+ int mbx_wait_rc = 0, i;
+ struct fc_vport_identifiers vport_id;
+ struct fc_vport *new_fc_vport;
+ struct Scsi_Host *shost;
+ struct lpfc_vport *vport;
+ uint16_t offset = 0;
+ uint8_t *vport_buff;
+ struct lpfc_dmabuf *mp;
+ uint32_t byte_count = 0;
+
+ pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_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
+ * as the completion routine when the command is
+ * handed off to the SLI layer.
+ */
+void
+lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+ MAILBOX_t *mb = &pmb->u.mb;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
+ struct lpfc_nodelist *ndlp;
+ 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 == LPFC_TOPOLOGY_LOOP) {
+ /* FLOGI failed, use loop map to make discovery list */
+ lpfc_disc_list_loopmap(vport);
+
+ /* Start discovery */
+ lpfc_disc_start(vport);
+ /* Decrement the reference count to ndlp after the
+ * reference to the ndlp are done.
+ */
+ lpfc_nlp_put(ndlp);
+ return;
+ }
+
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ /* Decrement the reference count to ndlp after the reference
+ * to the ndlp are done.
+ */
+ lpfc_nlp_put(ndlp);
+ return;
+ }
+
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ ndlp->nlp_rpi = mb->un.varWords[0];
+ ndlp->nlp_flag |= NLP_RPI_REGISTERED;
+ ndlp->nlp_type |= NLP_FABRIC;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+
+ if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
+ /* when physical port receive logo donot start
+ * vport discovery */
+ if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
+ lpfc_start_fdiscs(phba);
+ else {
+ shost = lpfc_shost_from_vport(vport);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
+ spin_unlock_irq(shost->host_lock);
+ }
+ lpfc_do_scr_ns_plogi(phba, vport);
+ }
+
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ /* Drop the reference count from the mbox at the end after
+ * all the current reference to the ndlp have been done.
+ */
+ lpfc_nlp_put(ndlp);
+ return;
+}
+
+ /*
+ * This routine will issue a GID_FT for each FC4 Type supported
+ * by the driver. ALL GID_FTs must complete before discovery is started.
+ */
+int
+lpfc_issue_gidft(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+
+ /* Good status, issue CT Request to NameServer */
+ if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
+ (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {
+ if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {
+ /* Cannot issue NameServer FCP Query, so finish up
+ * discovery
+ */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
+ "0604 %s FC TYPE %x %s\n",
+ "Failed to issue GID_FT to ",
+ FC_TYPE_FCP,
+ "Finishing discovery.");
+ return 0;
+ }
+ vport->gidft_inp++;
+ }
+
+ if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
+ (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
+ if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {
+ /* Cannot issue NameServer NVME Query, so finish up
+ * discovery
+ */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
+ "0605 %s FC_TYPE %x %s %d\n",
+ "Failed to issue GID_FT to ",
+ FC_TYPE_NVME,
+ "Finishing discovery: gidftinp ",
+ vport->gidft_inp);
+ if (vport->gidft_inp == 0)
+ return 0;
+ } else
+ vport->gidft_inp++;
+ }
+ return vport->gidft_inp;
+}
+
+/*
+ * This routine handles processing a NameServer REG_LOGIN mailbox
+ * command upon completion. It is setup in the LPFC_MBOXQ
+ * as the completion routine when the command is
+ * handed off to the SLI layer.
+ */
+void
+lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ MAILBOX_t *mb = &pmb->u.mb;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
+ struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
+ struct lpfc_vport *vport = pmb->vport;
+
+ pmb->context1 = NULL;
+ pmb->context2 = NULL;
+ vport->gidft_inp = 0;
+
+ if (mb->mbxStatus) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0260 Register NameServer error: 0x%x\n",
+ mb->mbxStatus);
+
+out:
+ /* decrement the node reference count held for this
+ * callback function.
+ */
+ lpfc_nlp_put(ndlp);
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ /* If no other thread is using the ndlp, free it */
+ lpfc_nlp_not_used(ndlp);
+
+ if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
+ /*
+ * RegLogin failed, use loop map to make discovery
+ * list
+ */
+ lpfc_disc_list_loopmap(vport);
+
+ /* Start discovery */
+ lpfc_disc_start(vport);
+ return;
+ }
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ return;
+ }
+
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ ndlp->nlp_rpi = mb->un.varWords[0];
+ ndlp->nlp_flag |= NLP_RPI_REGISTERED;
+ ndlp->nlp_type |= NLP_FABRIC;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
+ "0003 rpi:%x DID:%x flg:%x %d map%x %p\n",
+ ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
+ kref_read(&ndlp->kref),
+ ndlp->nlp_usg_map, ndlp);
+
+ if (vport->port_state < LPFC_VPORT_READY) {
+ /* Link up discovery requires Fabric registration. */
+ lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
+ lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
+ lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
+ lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
+
+ if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
+ (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP))
+ lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);
+
+ if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
+ (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
+ lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
+ FC_TYPE_NVME);
+
+ /* Issue SCR just before NameServer GID_FT Query */
+ lpfc_issue_els_scr(vport, SCR_DID, 0);
+ }
+
+ vport->fc_ns_retry = 0;
+ if (lpfc_issue_gidft(vport) == 0)
+ goto out;
+
+ /*
+ * At this point in time we may need to wait for multiple
+ * SLI_CTNS_GID_FT CT commands to complete before we start discovery.
+ *
+ * decrement the node reference count held for this
+ * callback function.
+ */
+ lpfc_nlp_put(ndlp);
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ return;
+}
+
+static void
+lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct fc_rport *rport;
+ struct lpfc_rport_data *rdata;
+ struct fc_rport_identifiers rport_ids;
+ struct lpfc_hba *phba = vport->phba;
+
+ if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
+ return;
+
+ /* Remote port has reappeared. Re-register w/ FC transport */
+ rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
+ rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
+ rport_ids.port_id = ndlp->nlp_DID;
+ rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
+
+ /*
+ * We leave our node pointer in rport->dd_data when we unregister a
+ * FCP target port. But fc_remote_port_add zeros the space to which
+ * rport->dd_data points. So, if we're reusing a previously
+ * registered port, drop the reference that we took the last time we
+ * registered the port.
+ */
+ rport = ndlp->rport;
+ if (rport) {
+ rdata = rport->dd_data;
+ /* break the link before dropping the ref */
+ ndlp->rport = NULL;
+ if (rdata) {
+ if (rdata->pnode == ndlp)
+ lpfc_nlp_put(ndlp);
+ rdata->pnode = NULL;
+ }
+ /* drop reference for earlier registeration */
+ put_device(&rport->dev);
+ }
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
+ "rport add: did:x%x flg:x%x type x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
+
+ /* Don't add the remote port if unloading. */
+ if (vport->load_flag & FC_UNLOADING)
+ return;
+
+ ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
+ if (!rport || !get_device(&rport->dev)) {
+ dev_printk(KERN_WARNING, &phba->pcidev->dev,
+ "Warning: fc_remote_port_add failed\n");
+ return;
+ }
+
+ /* initialize static port data */
+ rport->maxframe_size = ndlp->nlp_maxframe;
+ rport->supported_classes = ndlp->nlp_class_sup;
+ rdata = rport->dd_data;
+ rdata->pnode = lpfc_nlp_get(ndlp);
+
+ if (ndlp->nlp_type & NLP_FCP_TARGET)
+ rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
+ 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;
+ }
+ return;
+}
+
+static void
+lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
+{
+ struct fc_rport *rport = ndlp->rport;
+ struct lpfc_vport *vport = ndlp->vport;
+ struct lpfc_hba *phba = vport->phba;
+
+ if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
+ return;
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
+ "rport delete: did:x%x flg:x%x type x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
+
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "3184 rport unregister x%06x, rport %p\n",
+ ndlp->nlp_DID, rport);
+
+ fc_remote_port_delete(rport);
+
+ return;
+}
+
+static void
+lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ spin_lock_irq(shost->host_lock);
+ switch (state) {
+ case NLP_STE_UNUSED_NODE:
+ vport->fc_unused_cnt += count;
+ break;
+ case NLP_STE_PLOGI_ISSUE:
+ vport->fc_plogi_cnt += count;
+ break;
+ case NLP_STE_ADISC_ISSUE:
+ vport->fc_adisc_cnt += count;
+ break;
+ case NLP_STE_REG_LOGIN_ISSUE:
+ vport->fc_reglogin_cnt += count;
+ break;
+ case NLP_STE_PRLI_ISSUE:
+ vport->fc_prli_cnt += count;
+ break;
+ case NLP_STE_UNMAPPED_NODE:
+ vport->fc_unmap_cnt += count;
+ break;
+ case NLP_STE_MAPPED_NODE:
+ vport->fc_map_cnt += count;
+ break;
+ case NLP_STE_NPR_NODE:
+ if (vport->fc_npr_cnt == 0 && count == -1)
+ vport->fc_npr_cnt = 0;
+ else
+ vport->fc_npr_cnt += count;
+ break;
+ }
+ spin_unlock_irq(shost->host_lock);
+}
+
+static void
+lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ int old_state, int new_state)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ if (new_state == NLP_STE_UNMAPPED_NODE) {
+ ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
+ ndlp->nlp_type |= NLP_FC_NODE;
+ }
+ if (new_state == NLP_STE_MAPPED_NODE)
+ ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
+ if (new_state == NLP_STE_NPR_NODE)
+ ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
+
+ /* FCP and NVME Transport interface */
+ if ((old_state == NLP_STE_MAPPED_NODE ||
+ old_state == NLP_STE_UNMAPPED_NODE)) {
+ if (ndlp->rport) {
+ vport->phba->nport_event_cnt++;
+ lpfc_unregister_remote_port(ndlp);
+ }
+
+ if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
+ vport->phba->nport_event_cnt++;
+ if (vport->phba->nvmet_support == 0) {
+ /* Start devloss if target. */
+ if (ndlp->nlp_type & NLP_NVME_TARGET)
+ lpfc_nvme_unregister_port(vport, ndlp);
+ } else {
+ /* NVMET has no upcall. */
+ lpfc_nlp_put(ndlp);
+ }
+ }
+ }
+
+ /* FCP and NVME Transport interfaces */
+
+ if (new_state == NLP_STE_MAPPED_NODE ||
+ new_state == NLP_STE_UNMAPPED_NODE) {
+ if (ndlp->nlp_fc4_type & NLP_FC4_FCP ||
+ ndlp->nlp_DID == Fabric_DID ||
+ ndlp->nlp_DID == NameServer_DID ||
+ ndlp->nlp_DID == FDMI_DID) {
+ vport->phba->nport_event_cnt++;
+ /*
+ * Tell the fc transport about the port, if we haven't
+ * already. If we have, and it's a scsi entity, be
+ */
+ lpfc_register_remote_port(vport, ndlp);
+ }
+ /* Notify the NVME transport of this new rport. */
+ if (vport->phba->sli_rev >= LPFC_SLI_REV4 &&
+ ndlp->nlp_fc4_type & NLP_FC4_NVME) {
+ if (vport->phba->nvmet_support == 0) {
+ /* Register this rport with the transport.
+ * Only NVME Target Rports are registered with
+ * the transport.
+ */
+ if (ndlp->nlp_type & NLP_NVME_TARGET) {
+ vport->phba->nport_event_cnt++;
+ lpfc_nvme_register_port(vport, ndlp);
+ }
+ } else {
+ /* Just take an NDLP ref count since the
+ * target does not register rports.
+ */
+ lpfc_nlp_get(ndlp);
+ }
+ }
+ }
+
+ 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 the node just added to Mapped list was an FCP target,
+ * but the remote port registration failed or assigned a target
+ * id outside the presentable range - move the node to the
+ * Unmapped List.
+ */
+ if ((new_state == NLP_STE_MAPPED_NODE) &&
+ (ndlp->nlp_type & NLP_FCP_TARGET) &&
+ (!ndlp->rport ||
+ ndlp->rport->scsi_target_id == -1 ||
+ ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+ }
+}
+
+static char *
+lpfc_nlp_state_name(char *buffer, size_t size, int state)
+{
+ static char *states[] = {
+ [NLP_STE_UNUSED_NODE] = "UNUSED",
+ [NLP_STE_PLOGI_ISSUE] = "PLOGI",
+ [NLP_STE_ADISC_ISSUE] = "ADISC",
+ [NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
+ [NLP_STE_PRLI_ISSUE] = "PRLI",
+ [NLP_STE_LOGO_ISSUE] = "LOGO",
+ [NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
+ [NLP_STE_MAPPED_NODE] = "MAPPED",
+ [NLP_STE_NPR_NODE] = "NPR",
+ };
+
+ if (state < NLP_STE_MAX_STATE && states[state])
+ strlcpy(buffer, states[state], size);
+ else
+ snprintf(buffer, size, "unknown (%d)", state);
+ return buffer;
+}
+
+void
+lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ int state)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ int old_state = ndlp->nlp_state;
+ char name1[16], name2[16];
+
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0904 NPort state transition x%06x, %s -> %s\n",
+ ndlp->nlp_DID,
+ lpfc_nlp_state_name(name1, sizeof(name1), old_state),
+ lpfc_nlp_state_name(name2, sizeof(name2), state));
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
+ "node statechg did:x%x old:%d ste:%d",
+ ndlp->nlp_DID, old_state, state);
+
+ if (old_state == NLP_STE_NPR_NODE &&
+ state != NLP_STE_NPR_NODE)
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
+ if (old_state == NLP_STE_UNMAPPED_NODE) {
+ ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
+ ndlp->nlp_type &= ~NLP_FC_NODE;
+ }
+
+ if (list_empty(&ndlp->nlp_listp)) {
+ spin_lock_irq(shost->host_lock);
+ list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
+ spin_unlock_irq(shost->host_lock);
+ } else if (old_state)
+ lpfc_nlp_counters(vport, old_state, -1);
+
+ ndlp->nlp_state = state;
+ lpfc_nlp_counters(vport, state, 1);
+ lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
+}
+
+void
+lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ if (list_empty(&ndlp->nlp_listp)) {
+ spin_lock_irq(shost->host_lock);
+ list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
+ spin_unlock_irq(shost->host_lock);
+ }
+}
+
+void
+lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
+ if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
+ lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
+ spin_lock_irq(shost->host_lock);
+ list_del_init(&ndlp->nlp_listp);
+ spin_unlock_irq(shost->host_lock);
+ lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
+ NLP_STE_UNUSED_NODE);
+}
+
+static void
+lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *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);
+ timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);
+ ndlp->nlp_DID = did;
+ ndlp->vport = vport;
+ ndlp->phba = vport->phba;
+ ndlp->nlp_sid = NLP_NO_SID;
+ ndlp->nlp_fc4_type = NLP_FC4_NONE;
+ kref_init(&ndlp->kref);
+ 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,
+ int state)
+{
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t did;
+ unsigned long flags;
+ unsigned long *active_rrqs_xri_bitmap = NULL;
+ int rpi = LPFC_RPI_ALLOC_ERROR;
+
+ if (!ndlp)
+ return NULL;
+
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ rpi = lpfc_sli4_alloc_rpi(vport->phba);
+ if (rpi == LPFC_RPI_ALLOC_ERROR)
+ return NULL;
+ }
+
+ spin_lock_irqsave(&phba->ndlp_lock, flags);
+ /* The ndlp should not be in memory free mode */
+ if (NLP_CHK_FREE_REQ(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0277 lpfc_enable_node: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ kref_read(&ndlp->kref));
+ goto free_rpi;
+ }
+ /* The ndlp should not already be in active mode */
+ if (NLP_CHK_NODE_ACT(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0278 lpfc_enable_node: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ kref_read(&ndlp->kref));
+ goto free_rpi;
+ }
+
+ /* 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));
+ 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 = rpi;
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0008 rpi:%x DID:%x flg:%x refcnt:%d "
+ "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
+ ndlp->nlp_flag,
+ kref_read(&ndlp->kref),
+ ndlp->nlp_usg_map, ndlp);
+ }
+
+
+ if (state != NLP_STE_UNUSED_NODE)
+ lpfc_nlp_set_state(vport, ndlp, state);
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
+ "node enable: did:x%x",
+ ndlp->nlp_DID, 0, 0);
+ return ndlp;
+
+free_rpi:
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_sli4_free_rpi(vport->phba, rpi);
+ return NULL;
+}
+
+void
+lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ /*
+ * Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
+ * be used if we wish to issue the "last" lpfc_nlp_put() to remove
+ * the ndlp from the vport. The ndlp marked as UNUSED on the list
+ * until ALL other outstanding threads have completed. We check
+ * that the ndlp not already in the UNUSED state before we proceed.
+ */
+ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
+ return;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (vport->phba->sli_rev == LPFC_SLI_REV4) {
+ lpfc_cleanup_vports_rrqs(vport, ndlp);
+ lpfc_unreg_rpi(vport, ndlp);
+ }
+
+ lpfc_nlp_put(ndlp);
+ return;
+}
+
+/*
+ * Start / ReStart rescue timer for Discovery / RSCN handling
+ */
+void
+lpfc_set_disctmo(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t tmo;
+
+ if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
+ /* For FAN, timeout should be greater than edtov */
+ tmo = (((phba->fc_edtov + 999) / 1000) + 1);
+ } else {
+ /* Normal discovery timeout should be > than ELS/CT timeout
+ * FC spec states we need 3 * ratov for CT requests
+ */
+ tmo = ((phba->fc_ratov * 3) + 3);
+ }
+
+
+ if (!timer_pending(&vport->fc_disctmo)) {
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "set disc timer: tmo:x%x state:x%x flg:x%x",
+ tmo, vport->port_state, vport->fc_flag);
+ }
+
+ mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_DISC_TMO;
+ spin_unlock_irq(shost->host_lock);
+
+ /* Start Discovery Timer state <hba_state> */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0247 Start Discovery Timer state x%x "
+ "Data: x%x x%lx x%x x%x\n",
+ vport->port_state, tmo,
+ (unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
+ vport->fc_adisc_cnt);
+
+ return;
+}
+
+/*
+ * Cancel rescue timer for Discovery / RSCN handling
+ */
+int
+lpfc_can_disctmo(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ unsigned long iflags;
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "can disc timer: state:x%x rtry:x%x flg:x%x",
+ vport->port_state, vport->fc_ns_retry, vport->fc_flag);
+
+ /* Turn off discovery timer if its running */
+ if (vport->fc_flag & FC_DISC_TMO) {
+ spin_lock_irqsave(shost->host_lock, iflags);
+ vport->fc_flag &= ~FC_DISC_TMO;
+ spin_unlock_irqrestore(shost->host_lock, iflags);
+ del_timer_sync(&vport->fc_disctmo);
+ spin_lock_irqsave(&vport->work_port_lock, iflags);
+ vport->work_port_events &= ~WORKER_DISC_TMO;
+ spin_unlock_irqrestore(&vport->work_port_lock, iflags);
+ }
+
+ /* Cancel Discovery Timer state <hba_state> */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0248 Cancel Discovery Timer state x%x "
+ "Data: x%x x%x x%x\n",
+ vport->port_state, vport->fc_flag,
+ vport->fc_plogi_cnt, vport->fc_adisc_cnt);
+ return 0;
+}
+
+/*
+ * Check specified ring for outstanding IOCB on the SLI queue
+ * Return true if iocb matches the specified nport
+ */
+int
+lpfc_check_sli_ndlp(struct lpfc_hba *phba,
+ struct lpfc_sli_ring *pring,
+ struct lpfc_iocbq *iocb,
+ struct lpfc_nodelist *ndlp)
+{
+ IOCB_t *icmd = &iocb->iocb;
+ struct lpfc_vport *vport = ndlp->vport;
+
+ if (iocb->vport != vport)
+ return 0;
+
+ if (pring->ringno == LPFC_ELS_RING) {
+ switch (icmd->ulpCommand) {
+ case CMD_GEN_REQUEST64_CR:
+ if (iocb->context_un.ndlp == ndlp)
+ return 1;
+ case CMD_ELS_REQUEST64_CR:
+ if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
+ return 1;
+ case CMD_XMIT_ELS_RSP64_CX:
+ if (iocb->context1 == (uint8_t *) ndlp)
+ return 1;
+ }
+ } else if (pring->ringno == LPFC_FCP_RING) {
+ /* Skip match check if waiting to relogin to FCP target */
+ if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
+ (ndlp->nlp_flag & NLP_DELAY_TMO)) {
+ return 0;
+ }
+ if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static void
+__lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,
+ struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,
+ struct list_head *dequeue_list)
+{
+ struct lpfc_iocbq *iocb, *next_iocb;
+
+ list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
+ /* Check to see if iocb matches the nport */
+ if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
+ /* match, dequeue */
+ list_move_tail(&iocb->list, dequeue_list);
+ }
+}
+
+static void
+lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,
+ struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
+{
+ struct lpfc_sli *psli = &phba->sli;
+ uint32_t i;
+
+ spin_lock_irq(&phba->hbalock);
+ for (i = 0; i < psli->num_rings; i++)
+ __lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],
+ dequeue_list);
+ spin_unlock_irq(&phba->hbalock);
+}
+
+static void
+lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,
+ struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
+{
+ struct lpfc_sli_ring *pring;
+ struct lpfc_queue *qp = NULL;
+
+ spin_lock_irq(&phba->hbalock);
+ list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
+ pring = qp->pring;
+ if (!pring)
+ continue;
+ spin_lock(&pring->ring_lock);
+ __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);
+ spin_unlock(&pring->ring_lock);
+ }
+ spin_unlock_irq(&phba->hbalock);
+}
+
+/*
+ * Free resources / clean up outstanding I/Os
+ * associated with nlp_rpi in the LPFC_NODELIST entry.
+ */
+static int
+lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
+{
+ LIST_HEAD(completions);
+
+ lpfc_fabric_abort_nport(ndlp);
+
+ /*
+ * Everything that matches on txcmplq will be returned
+ * by firmware with a no rpi error.
+ */
+ if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
+ if (phba->sli_rev != LPFC_SLI_REV4)
+ lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);
+ else
+ lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);
+ }
+
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+
+ return 0;
+}
+
+/**
+ * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
+ * @phba: Pointer to HBA context object.
+ * @pmb: Pointer to mailbox object.
+ *
+ * This function will issue an ELS LOGO command after completing
+ * the UNREG_RPI.
+ **/
+static void
+lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+ struct lpfc_nodelist *ndlp;
+
+ ndlp = (struct lpfc_nodelist *)(pmb->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
+ * a LPFC_NODELIST entry. It is also called if the driver initiates a
+ * LOGO that completes successfully, and we are waiting to PLOGI back
+ * to the remote NPort. In addition, it is called after we receive
+ * and unsolicated ELS cmd, send back a rsp, the rsp completes and
+ * we are waiting to PLOGI back to the remote NPort.
+ */
+int
+lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mbox;
+ int rc, acc_plogi = 1;
+ uint16_t rpi;
+
+ if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
+ ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
+ if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_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) {
+ /* 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;
+ if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
+ mbox->context1 = ndlp;
+ mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
+ } else {
+ if (phba->sli_rev == LPFC_SLI_REV4 &&
+ (!(vport->load_flag & FC_UNLOADING)) &&
+ (bf_get(lpfc_sli_intf_if_type,
+ &phba->sli4_hba.sli_intf) ==
+ LPFC_SLI_INTF_IF_TYPE_2) &&
+ (kref_read(&ndlp->kref) > 0)) {
+ mbox->context1 = lpfc_nlp_get(ndlp);
+ mbox->mbox_cmpl =
+ lpfc_sli4_unreg_rpi_cmpl_clr;
+ /*
+ * accept PLOGIs after unreg_rpi_cmpl
+ */
+ acc_plogi = 0;
+ } 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);
+ acc_plogi = 1;
+ }
+ }
+ lpfc_no_rpi(phba, ndlp);
+
+ if (phba->sli_rev != LPFC_SLI_REV4)
+ ndlp->nlp_rpi = 0;
+ ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
+ ndlp->nlp_flag &= ~NLP_NPR_ADISC;
+ if (acc_plogi)
+ ndlp->nlp_flag &= ~NLP_LOGO_ACC;
+ return 1;
+ }
+ ndlp->nlp_flag &= ~NLP_LOGO_ACC;
+ return 0;
+}
+
+/**
+ * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unregister all the currently registered RPIs
+ * to the HBA.
+ **/
+void
+lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ struct lpfc_nodelist *ndlp;
+ struct Scsi_Host *shost;
+ int i;
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (!vports) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_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)
+{
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ lpfc_sli4_unreg_all_rpis(vport);
+ return;
+ }
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mbox) {
+ lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
+ mbox);
+ mbox->vport = vport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mbox->context1 = NULL;
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mbox, phba->mbox_mem_pool);
+
+ if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
+ "1836 Could not issue "
+ "unreg_login(all_rpis) status %d\n", rc);
+ }
+}
+
+void
+lpfc_unreg_default_rpis(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mbox) {
+ lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
+ mbox);
+ mbox->vport = vport;
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mbox->context1 = NULL;
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mbox, phba->mbox_mem_pool);
+
+ if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
+ "1815 Could not issue "
+ "unreg_did (default rpis) status %d\n",
+ rc);
+ }
+}
+
+/*
+ * Free resources associated with LPFC_NODELIST entry
+ * so it can be freed.
+ */
+static int
+lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ LPFC_MBOXQ_t *mb, *nextmb;
+ struct lpfc_dmabuf *mp;
+
+ /* Cleanup node for NPort <nlp_DID> */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0900 Cleanup node for NPort x%x "
+ "Data: x%x x%x x%x\n",
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ ndlp->nlp_state, ndlp->nlp_rpi);
+ if (NLP_CHK_FREE_REQ(ndlp)) {
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0280 lpfc_cleanup_node: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ kref_read(&ndlp->kref));
+ lpfc_dequeue_node(vport, ndlp);
+ } else {
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0281 lpfc_cleanup_node: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ kref_read(&ndlp->kref));
+ 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->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;
+ }
+ }
+
+ 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->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) {
+ __lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ }
+ list_del(&mb->list);
+ mempool_free(mb, phba->mbox_mem_pool);
+ /* We shall not invoke the lpfc_nlp_put to decrement
+ * the ndlp reference count as we are in the process
+ * of lpfc_nlp_release.
+ */
+ }
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_els_abort(phba, ndlp);
+
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_DELAY_TMO;
+ spin_unlock_irq(shost->host_lock);
+
+ ndlp->nlp_last_elscmd = 0;
+ del_timer_sync(&ndlp->nlp_delayfunc);
+
+ list_del_init(&ndlp->els_retry_evt.evt_listp);
+ list_del_init(&ndlp->dev_loss_evt.evt_listp);
+ lpfc_cleanup_vports_rrqs(vport, ndlp);
+ lpfc_unreg_rpi(vport, ndlp);
+
+ return 0;
+}
+
+/*
+ * Check to see if we can free the nlp back to the freelist.
+ * If we are in the middle of using the nlp in the discovery state
+ * machine, defer the free till we reach the end of the state machine.
+ */
+static void
+lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_rport_data *rdata;
+ struct fc_rport *rport;
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+
+ 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) &&
+ phba->sli_rev != LPFC_SLI_REV4) {
+ /* For this case we need to cleanup the default rpi
+ * allocated by the firmware.
+ */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0005 rpi:%x DID:%x flg:%x %d map:%x %p\n",
+ ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
+ kref_read(&ndlp->kref),
+ ndlp->nlp_usg_map, ndlp);
+ if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
+ != NULL) {
+ 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);
+ }
+ else {
+ mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
+ mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
+ mbox->vport = vport;
+ mbox->context2 = ndlp;
+ rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ }
+ }
+ }
+ }
+ lpfc_cleanup_node(vport, ndlp);
+
+ /*
+ * ndlp->rport must be set to NULL before it reaches here
+ * i.e. break rport/node link before doing lpfc_nlp_put for
+ * registered rport and then drop the reference of rport.
+ */
+ if (ndlp->rport) {
+ /*
+ * extra lpfc_nlp_put dropped the reference of ndlp
+ * for registered rport so need to cleanup rport
+ */
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
+ "0940 removed node x%p DID x%x "
+ " rport not null %p\n",
+ ndlp, ndlp->nlp_DID, ndlp->rport);
+ rport = ndlp->rport;
+ rdata = rport->dd_data;
+ rdata->pnode = NULL;
+ ndlp->rport = NULL;
+ put_device(&rport->dev);
+ }
+}
+
+static int
+lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+ uint32_t did)
+{
+ D_ID mydid, ndlpdid, matchdid;
+
+ if (did == Bcast_DID)
+ return 0;
+
+ /* First check for Direct match */
+ if (ndlp->nlp_DID == did)
+ return 1;
+
+ /* Next check for area/domain identically equals 0 match */
+ mydid.un.word = vport->fc_myDID;
+ if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
+ return 0;
+ }
+
+ matchdid.un.word = did;
+ ndlpdid.un.word = ndlp->nlp_DID;
+ if (matchdid.un.b.id == ndlpdid.un.b.id) {
+ if ((mydid.un.b.domain == matchdid.un.b.domain) &&
+ (mydid.un.b.area == matchdid.un.b.area)) {
+ /* This code is supposed to match the ID
+ * for a private loop device that is
+ * connect to fl_port. But we need to
+ * check that the port did not just go
+ * from pt2pt to fabric or we could end
+ * up matching ndlp->nlp_DID 000001 to
+ * fabric DID 0x20101
+ */
+ if ((ndlpdid.un.b.domain == 0) &&
+ (ndlpdid.un.b.area == 0)) {
+ if (ndlpdid.un.b.id &&
+ vport->phba->fc_topology ==
+ LPFC_TOPOLOGY_LOOP)
+ return 1;
+ }
+ return 0;
+ }
+
+ matchdid.un.word = ndlp->nlp_DID;
+ if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
+ (mydid.un.b.area == ndlpdid.un.b.area)) {
+ if ((matchdid.un.b.domain == 0) &&
+ (matchdid.un.b.area == 0)) {
+ if (matchdid.un.b.id)
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+/* Search for a nodelist entry */
+static struct lpfc_nodelist *
+__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
+{
+ struct lpfc_nodelist *ndlp;
+ uint32_t data1;
+
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ if (lpfc_matchdid(vport, ndlp, did)) {
+ data1 = (((uint32_t) ndlp->nlp_state << 24) |
+ ((uint32_t) ndlp->nlp_xri << 16) |
+ ((uint32_t) ndlp->nlp_type << 8) |
+ ((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 %p\n",
+ ndlp, ndlp->nlp_DID,
+ ndlp->nlp_flag, data1,
+ ndlp->active_rrqs_xri_bitmap);
+ return ndlp;
+ }
+ }
+
+ /* FIND node did <did> NOT FOUND */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0932 FIND node did x%x NOT FOUND.\n", did);
+ return NULL;
+}
+
+struct lpfc_nodelist *
+lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_nodelist *ndlp;
+ unsigned long iflags;
+
+ spin_lock_irqsave(shost->host_lock, iflags);
+ ndlp = __lpfc_findnode_did(vport, did);
+ spin_unlock_irqrestore(shost->host_lock, iflags);
+ return ndlp;
+}
+
+struct lpfc_nodelist *
+lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_nodelist *ndlp;
+
+ ndlp = lpfc_findnode_did(vport, did);
+ if (!ndlp) {
+ if (vport->phba->nvmet_support)
+ return NULL;
+ if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
+ lpfc_rscn_payload_check(vport, did) == 0)
+ return NULL;
+ ndlp = lpfc_nlp_init(vport, did);
+ if (!ndlp)
+ return NULL;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
+ return ndlp;
+ } else if (!NLP_CHK_NODE_ACT(ndlp)) {
+ if (vport->phba->nvmet_support)
+ return NULL;
+ ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
+ if (!ndlp)
+ return NULL;
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
+ return ndlp;
+ }
+
+ /* The NVME Target does not want to actively manage an rport.
+ * The goal is to allow the target to reset its state and clear
+ * pending IO in preparation for the initiator to recover.
+ */
+ if ((vport->fc_flag & FC_RSCN_MODE) &&
+ !(vport->fc_flag & FC_NDISC_ACTIVE)) {
+ if (lpfc_rscn_payload_check(vport, did)) {
+
+ /* Since this node is marked for discovery,
+ * delay timeout is not needed.
+ */
+ lpfc_cancel_retry_delay_tmo(vport, ndlp);
+
+ /* NVME Target mode waits until rport is known to be
+ * impacted by the RSCN before it transitions. No
+ * active management - just go to NPR provided the
+ * node had a valid login.
+ */
+ if (vport->phba->nvmet_support)
+ return ndlp;
+
+ /* If we've already received a PLOGI from this NPort
+ * we don't need to try to discover it again.
+ */
+ if (ndlp->nlp_flag & NLP_RCV_PLOGI)
+ return NULL;
+
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
+ } else
+ ndlp = NULL;
+ } else {
+ /* If the initiator received a PLOGI from this NPort or if the
+ * initiator is already in the process of discovery on it,
+ * there's no need to try to discover it again.
+ */
+ if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
+ ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
+ (!vport->phba->nvmet_support &&
+ ndlp->nlp_flag & NLP_RCV_PLOGI))
+ return NULL;
+
+ if (vport->phba->nvmet_support)
+ return ndlp;
+
+ /* Moving to NPR state clears unsolicited flags and
+ * allows for rediscovery
+ */
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
+ }
+ return ndlp;
+}
+
+/* Build a list of nodes to discover based on the loopmap */
+void
+lpfc_disc_list_loopmap(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ int j;
+ uint32_t alpa, index;
+
+ if (!lpfc_is_link_up(phba))
+ return;
+
+ if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
+ return;
+
+ /* Check for loop map present or not */
+ if (phba->alpa_map[0]) {
+ for (j = 1; j <= phba->alpa_map[0]; j++) {
+ alpa = phba->alpa_map[j];
+ if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
+ continue;
+ lpfc_setup_disc_node(vport, alpa);
+ }
+ } else {
+ /* No alpamap, so try all alpa's */
+ for (j = 0; j < FC_MAXLOOP; j++) {
+ /* If cfg_scan_down is set, start from highest
+ * ALPA (0xef) to lowest (0x1).
+ */
+ if (vport->cfg_scan_down)
+ index = j;
+ else
+ index = FC_MAXLOOP - j - 1;
+ alpa = lpfcAlpaArray[index];
+ if ((vport->fc_myDID & 0xff) == alpa)
+ continue;
+ lpfc_setup_disc_node(vport, alpa);
+ }
+ }
+ return;
+}
+
+/* SLI3 only */
+void
+lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
+{
+ LPFC_MBOXQ_t *mbox;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];
+ struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];
+ int rc;
+
+ /*
+ * if it's not a physical port or if we already send
+ * clear_la then don't send it.
+ */
+ if ((phba->link_state >= LPFC_CLEAR_LA) ||
+ (vport->port_type != LPFC_PHYSICAL_PORT) ||
+ (phba->sli_rev == LPFC_SLI_REV4))
+ return;
+
+ /* Link up discovery */
+ if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
+ phba->link_state = LPFC_CLEAR_LA;
+ lpfc_clear_la(phba, mbox);
+ mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
+ mbox->vport = vport;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ lpfc_disc_flush_list(vport);
+ extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
+ fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
+ phba->link_state = LPFC_HBA_ERROR;
+ }
+ }
+}
+
+/* Reg_vpi to tell firmware to resume normal operations */
+void
+lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
+{
+ LPFC_MBOXQ_t *regvpimbox;
+
+ regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (regvpimbox) {
+ lpfc_reg_vpi(vport, regvpimbox);
+ regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
+ regvpimbox->vport = vport;
+ if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
+ == MBX_NOT_FINISHED) {
+ mempool_free(regvpimbox, phba->mbox_mem_pool);
+ }
+ }
+}
+
+/* Start Link up / RSCN discovery on NPR nodes */
+void
+lpfc_disc_start(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t num_sent;
+ uint32_t clear_la_pending;
+
+ if (!lpfc_is_link_up(phba)) {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
+ "3315 Link is not up %x\n",
+ phba->link_state);
+ return;
+ }
+
+ if (phba->link_state == LPFC_CLEAR_LA)
+ clear_la_pending = 1;
+ else
+ clear_la_pending = 0;
+
+ if (vport->port_state < LPFC_VPORT_READY)
+ vport->port_state = LPFC_DISC_AUTH;
+
+ lpfc_set_disctmo(vport);
+
+ vport->fc_prevDID = vport->fc_myDID;
+ vport->num_disc_nodes = 0;
+
+ /* Start Discovery state <hba_state> */
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "0202 Start Discovery hba state x%x "
+ "Data: x%x x%x x%x\n",
+ vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
+ vport->fc_adisc_cnt);
+
+ /* First do ADISCs - if any */
+ num_sent = lpfc_els_disc_adisc(vport);
+
+ if (num_sent)
+ return;
+
+ /* Register the VPI for SLI3, NPIV only. */
+ if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
+ !(vport->fc_flag & FC_PT2PT) &&
+ !(vport->fc_flag & FC_RSCN_MODE) &&
+ (phba->sli_rev < LPFC_SLI_REV4)) {
+ lpfc_issue_clear_la(phba, vport);
+ lpfc_issue_reg_vpi(phba, vport);
+ return;
+ }
+
+ /*
+ * For SLI2, we need to set port_state to READY and continue
+ * discovery.
+ */
+ if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
+ /* If we get here, there is nothing to ADISC */
+ lpfc_issue_clear_la(phba, vport);
+
+ if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
+ vport->num_disc_nodes = 0;
+ /* go thru NPR nodes and issue ELS PLOGIs */
+ if (vport->fc_npr_cnt)
+ lpfc_els_disc_plogi(vport);
+
+ if (!vport->num_disc_nodes) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_NDISC_ACTIVE;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_can_disctmo(vport);
+ }
+ }
+ vport->port_state = LPFC_VPORT_READY;
+ } else {
+ /* Next do PLOGIs - if any */
+ num_sent = lpfc_els_disc_plogi(vport);
+
+ if (num_sent)
+ return;
+
+ if (vport->fc_flag & FC_RSCN_MODE) {
+ /* Check to see if more RSCNs came in while we
+ * were processing this one.
+ */
+ if ((vport->fc_rscn_id_cnt == 0) &&
+ (!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_RSCN_MODE;
+ spin_unlock_irq(shost->host_lock);
+ lpfc_can_disctmo(vport);
+ } else
+ lpfc_els_handle_rscn(vport);
+ }
+ }
+ return;
+}
+
+/*
+ * Ignore completion for all IOCBs on tx and txcmpl queue for ELS
+ * ring the match the sppecified nodelist.
+ */
+static void
+lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
+{
+ LIST_HEAD(completions);
+ struct lpfc_sli *psli;
+ IOCB_t *icmd;
+ struct lpfc_iocbq *iocb, *next_iocb;
+ struct lpfc_sli_ring *pring;
+
+ psli = &phba->sli;
+ pring = lpfc_phba_elsring(phba);
+ if (unlikely(!pring))
+ return;
+
+ /* Error matching iocb on txq or txcmplq
+ * First check the txq.
+ */
+ spin_lock_irq(&phba->hbalock);
+ list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
+ if (iocb->context1 != ndlp) {
+ continue;
+ }
+ icmd = &iocb->iocb;
+ if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
+ (icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
+
+ list_move_tail(&iocb->list, &completions);
+ }
+ }
+
+ /* Next check the txcmplq */
+ list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
+ if (iocb->context1 != ndlp) {
+ continue;
+ }
+ icmd = &iocb->iocb;
+ if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
+ icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
+ lpfc_sli_issue_abort_iotag(phba, pring, iocb);
+ }
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
+}
+
+static void
+lpfc_disc_flush_list(struct lpfc_vport *vport)
+{
+ struct lpfc_nodelist *ndlp, *next_ndlp;
+ struct lpfc_hba *phba = vport->phba;
+
+ if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
+ nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
+ ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
+ lpfc_free_tx(phba, ndlp);
+ }
+ }
+ }
+}
+
+void
+lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
+{
+ lpfc_els_flush_rscn(vport);
+ lpfc_els_flush_cmd(vport);
+ lpfc_disc_flush_list(vport);
+}
+
+/*****************************************************************************/
+/*
+ * NAME: lpfc_disc_timeout
+ *
+ * FUNCTION: Fibre Channel driver discovery timeout routine.
+ *
+ * EXECUTION ENVIRONMENT: interrupt only
+ *
+ * CALLED FROM:
+ * Timer function
+ *
+ * RETURNS:
+ * none
+ */
+/*****************************************************************************/
+void
+lpfc_disc_timeout(struct timer_list *t)
+{
+ struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t tmo_posted;
+ unsigned long flags = 0;
+
+ if (unlikely(!phba))
+ return;
+
+ spin_lock_irqsave(&vport->work_port_lock, flags);
+ tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
+ if (!tmo_posted)
+ vport->work_port_events |= WORKER_DISC_TMO;
+ spin_unlock_irqrestore(&vport->work_port_lock, flags);
+
+ if (!tmo_posted)
+ lpfc_worker_wake_up(phba);
+ return;
+}
+
+static void
+lpfc_disc_timeout_handler(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_nodelist *ndlp, *next_ndlp;
+ LPFC_MBOXQ_t *initlinkmbox;
+ int rc, clrlaerr = 0;
+
+ if (!(vport->fc_flag & FC_DISC_TMO))
+ return;
+
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_DISC_TMO;
+ spin_unlock_irq(shost->host_lock);
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
+ "disc timeout: state:x%x rtry:x%x flg:x%x",
+ vport->port_state, vport->fc_ns_retry, vport->fc_flag);
+
+ switch (vport->port_state) {
+
+ case LPFC_LOCAL_CFG_LINK:
+ /*
+ * port_state is identically LPFC_LOCAL_CFG_LINK while
+ * waiting for FAN timeout
+ */
+ lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
+ "0221 FAN timeout\n");
+
+ /* Start discovery by sending FLOGI, clean up old rpis */
+ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
+ nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->nlp_state != NLP_STE_NPR_NODE)
+ continue;
+ if (ndlp->nlp_type & NLP_FABRIC) {
+ /* Clean up the ndlp on Fabric connections */
+ lpfc_drop_node(vport, ndlp);
+
+ } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
+ /* Fail outstanding IO now since device
+ * is marked for PLOGI.
+ */
+ lpfc_unreg_rpi(vport, ndlp);
+ }
+ }
+ if (vport->port_state != LPFC_FLOGI) {
+ if (phba->sli_rev <= LPFC_SLI_REV3)
+ lpfc_initial_flogi(vport);
+ else
+ lpfc_issue_init_vfi(vport);
+ return;
+ }
+ break;
+
+ case LPFC_FDISC:
+ case LPFC_FLOGI:
+ /* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
+ /* Initial FLOGI timeout */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0222 Initial %s timeout\n",
+ vport->vpi ? "FDISC" : "FLOGI");
+
+ /* Assume no Fabric and go on with discovery.
+ * Check for outstanding ELS FLOGI to abort.
+ */
+
+ /* FLOGI failed, so just use loop map to make discovery list */
+ lpfc_disc_list_loopmap(vport);
+
+ /* Start discovery */
+ lpfc_disc_start(vport);
+ break;
+
+ case LPFC_FABRIC_CFG_LINK:
+ /* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
+ NameServer login */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0223 Timeout while waiting for "
+ "NameServer login\n");
+ /* Next look for NameServer ndlp */
+ ndlp = lpfc_findnode_did(vport, NameServer_DID);
+ if (ndlp && NLP_CHK_NODE_ACT(ndlp))
+ lpfc_els_abort(phba, ndlp);
+
+ /* ReStart discovery */
+ goto restart_disc;
+
+ case LPFC_NS_QRY:
+ /* Check for wait for NameServer Rsp timeout */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0224 NameServer Query timeout "
+ "Data: x%x x%x\n",
+ vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
+
+ if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
+ /* Try it one more time */
+ vport->fc_ns_retry++;
+ vport->gidft_inp = 0;
+ rc = lpfc_issue_gidft(vport);
+ if (rc == 0)
+ break;
+ }
+ vport->fc_ns_retry = 0;
+
+restart_disc:
+ /*
+ * Discovery is over.
+ * set port_state to PORT_READY if SLI2.
+ * cmpl_reg_vpi will set port_state to READY for SLI3.
+ */
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ lpfc_issue_reg_vpi(phba, vport);
+ else {
+ lpfc_issue_clear_la(phba, vport);
+ vport->port_state = LPFC_VPORT_READY;
+ }
+ }
+
+ /* Setup and issue mailbox INITIALIZE LINK command */
+ initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!initlinkmbox) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0206 Device Discovery "
+ "completion error\n");
+ phba->link_state = LPFC_HBA_ERROR;
+ break;
+ }
+
+ lpfc_linkdown(phba);
+ lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
+ phba->cfg_link_speed);
+ initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
+ initlinkmbox->vport = vport;
+ initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
+ lpfc_set_loopback_flag(phba);
+ if (rc == MBX_NOT_FINISHED)
+ mempool_free(initlinkmbox, phba->mbox_mem_pool);
+
+ break;
+
+ case LPFC_DISC_AUTH:
+ /* Node Authentication timeout */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0227 Node Authentication timeout\n");
+ lpfc_disc_flush_list(vport);
+
+ /*
+ * set port_state to PORT_READY if SLI2.
+ * cmpl_reg_vpi will set port_state to READY for SLI3.
+ */
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ lpfc_issue_reg_vpi(phba, vport);
+ else { /* NPIV Not enabled */
+ lpfc_issue_clear_la(phba, vport);
+ vport->port_state = LPFC_VPORT_READY;
+ }
+ }
+ break;
+
+ case LPFC_VPORT_READY:
+ if (vport->fc_flag & FC_RSCN_MODE) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0231 RSCN timeout Data: x%x "
+ "x%x\n",
+ vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
+
+ /* Cleanup any outstanding ELS commands */
+ lpfc_els_flush_cmd(vport);
+
+ lpfc_els_flush_rscn(vport);
+ lpfc_disc_flush_list(vport);
+ }
+ break;
+
+ default:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0273 Unexpected discovery timeout, "
+ "vport State x%x\n", vport->port_state);
+ break;
+ }
+
+ switch (phba->link_state) {
+ case LPFC_CLEAR_LA:
+ /* CLEAR LA timeout */
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0228 CLEAR LA timeout\n");
+ clrlaerr = 1;
+ break;
+
+ case LPFC_LINK_UP:
+ lpfc_issue_clear_la(phba, vport);
+ /* Drop thru */
+ case LPFC_LINK_UNKNOWN:
+ case LPFC_WARM_START:
+ case LPFC_INIT_START:
+ case LPFC_INIT_MBX_CMDS:
+ case LPFC_LINK_DOWN:
+ case LPFC_HBA_ERROR:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
+ "0230 Unexpected timeout, hba link "
+ "state x%x\n", phba->link_state);
+ clrlaerr = 1;
+ break;
+
+ case LPFC_HBA_READY:
+ break;
+ }
+
+ if (clrlaerr) {
+ lpfc_disc_flush_list(vport);
+ if (phba->sli_rev != LPFC_SLI_REV4) {
+ psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=
+ ~LPFC_STOP_IOCB_EVENT;
+ psli->sli3_ring[LPFC_FCP_RING].flag &=
+ ~LPFC_STOP_IOCB_EVENT;
+ }
+ vport->port_state = LPFC_VPORT_READY;
+ }
+ return;
+}
+
+/*
+ * This routine handles processing a NameServer REG_LOGIN mailbox
+ * command upon completion. It is setup in the LPFC_MBOXQ
+ * as the completion routine when the command is
+ * handed off to the SLI layer.
+ */
+void
+lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ MAILBOX_t *mb = &pmb->u.mb;
+ struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
+ struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
+ struct lpfc_vport *vport = pmb->vport;
+
+ pmb->context1 = NULL;
+ pmb->context2 = NULL;
+
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ ndlp->nlp_rpi = mb->un.varWords[0];
+ ndlp->nlp_flag |= NLP_RPI_REGISTERED;
+ ndlp->nlp_type |= NLP_FABRIC;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
+ "0004 rpi:%x DID:%x flg:%x %d map:%x %p\n",
+ ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
+ kref_read(&ndlp->kref),
+ ndlp->nlp_usg_map, ndlp);
+ /*
+ * Start issuing Fabric-Device Management Interface (FDMI) command to
+ * 0xfffffa (FDMI well known port).
+ * DHBA -> DPRT -> RHBA -> RPA (physical port)
+ * DPRT -> RPRT (vports)
+ */
+ if (vport->port_type == LPFC_PHYSICAL_PORT)
+ lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
+ else
+ lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
+
+
+ /* decrement the node reference count held for this callback
+ * function.
+ */
+ lpfc_nlp_put(ndlp);
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ return;
+}
+
+static int
+lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
+{
+ uint16_t *rpi = param;
+
+ /* check for active node */
+ if (!NLP_CHK_NODE_ACT(ndlp))
+ return 0;
+
+ return ndlp->nlp_rpi == *rpi;
+}
+
+static int
+lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
+{
+ return memcmp(&ndlp->nlp_portname, param,
+ sizeof(ndlp->nlp_portname)) == 0;
+}
+
+static struct lpfc_nodelist *
+__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
+{
+ struct lpfc_nodelist *ndlp;
+
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ if (filter(ndlp, param)) {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "3185 FIND node filter %p DID "
+ "ndlp %p did x%x flg x%x st x%x "
+ "xri x%x type x%x rpi x%x\n",
+ filter, ndlp, ndlp->nlp_DID,
+ ndlp->nlp_flag, ndlp->nlp_state,
+ ndlp->nlp_xri, ndlp->nlp_type,
+ ndlp->nlp_rpi);
+ return ndlp;
+ }
+ }
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "3186 FIND node filter %p NOT FOUND.\n", filter);
+ return NULL;
+}
+
+/*
+ * This routine looks up the ndlp lists for the given RPI. If rpi found it
+ * returns the node list element pointer else return NULL.
+ */
+struct lpfc_nodelist *
+__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
+{
+ return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
+}
+
+/*
+ * This routine looks up the ndlp lists for the given WWPN. If WWPN found it
+ * returns the node element list pointer else return NULL.
+ */
+struct lpfc_nodelist *
+lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_nodelist *ndlp;
+
+ spin_lock_irq(shost->host_lock);
+ ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
+ spin_unlock_irq(shost->host_lock);
+ return ndlp;
+}
+
+/*
+ * This routine looks up the ndlp lists for the given RPI. If the rpi
+ * is found, the routine returns the node element list pointer else
+ * return NULL.
+ */
+struct lpfc_nodelist *
+lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_nodelist *ndlp;
+
+ spin_lock_irq(shost->host_lock);
+ 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;
+}
+
+struct lpfc_nodelist *
+lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)
+{
+ struct lpfc_nodelist *ndlp;
+ int rpi = LPFC_RPI_ALLOC_ERROR;
+
+ if (vport->phba->sli_rev == LPFC_SLI_REV4) {
+ rpi = lpfc_sli4_alloc_rpi(vport->phba);
+ if (rpi == LPFC_RPI_ALLOC_ERROR)
+ return NULL;
+ }
+
+ ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
+ if (!ndlp) {
+ if (vport->phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_sli4_free_rpi(vport->phba, rpi);
+ return NULL;
+ }
+
+ memset(ndlp, 0, sizeof (struct lpfc_nodelist));
+
+ lpfc_initialize_node(vport, ndlp, did);
+ INIT_LIST_HEAD(&ndlp->nlp_listp);
+ if (vport->phba->sli_rev == LPFC_SLI_REV4) {
+ ndlp->nlp_rpi = rpi;
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+ "0007 rpi:%x DID:%x flg:%x refcnt:%d "
+ "map:%x %p\n", ndlp->nlp_rpi, ndlp->nlp_DID,
+ ndlp->nlp_flag,
+ kref_read(&ndlp->kref),
+ ndlp->nlp_usg_map, ndlp);
+
+ ndlp->active_rrqs_xri_bitmap =
+ mempool_alloc(vport->phba->active_rrq_pool,
+ GFP_KERNEL);
+ if (ndlp->active_rrqs_xri_bitmap)
+ memset(ndlp->active_rrqs_xri_bitmap, 0,
+ ndlp->phba->cfg_rrq_xri_bitmap_sz);
+ }
+
+
+
+ lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
+ "node init: did:x%x",
+ ndlp->nlp_DID, 0, 0);
+
+ return ndlp;
+}
+
+/* This routine releases all resources associated with a specifc NPort's ndlp
+ * and mempool_free's the nodelist.
+ */
+static void
+lpfc_nlp_release(struct kref *kref)
+{
+ struct lpfc_hba *phba;
+ unsigned long flags;
+ struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
+ kref);
+
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
+ "node release: did:x%x flg:x%x type:x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
+
+ lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
+ "0279 lpfc_nlp_release: ndlp:x%p did %x "
+ "usgmap:x%x refcnt:%d rpi:%x\n",
+ (void *)ndlp, ndlp->nlp_DID, ndlp->nlp_usg_map,
+ kref_read(&ndlp->kref), ndlp->nlp_rpi);
+
+ /* remove ndlp from action. */
+ lpfc_nlp_remove(ndlp->vport, ndlp);
+
+ /* clear the ndlp active flag for all release cases */
+ 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)) {
+ 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
+ * that one discovery thread won't free a ndlp while another discovery thread
+ * is using it.
+ */
+struct lpfc_nodelist *
+lpfc_nlp_get(struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_hba *phba;
+ unsigned long flags;
+
+ if (ndlp) {
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
+ "node get: did:x%x flg:x%x refcnt:x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ kref_read(&ndlp->kref));
+ /* The check of ndlp usage to prevent incrementing the
+ * ndlp reference count that is in the process of being
+ * released.
+ */
+ 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);
+ lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
+ "0276 lpfc_nlp_get: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ kref_read(&ndlp->kref));
+ return NULL;
+ } else
+ kref_get(&ndlp->kref);
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ }
+ return ndlp;
+}
+
+/* This routine decrements the reference count for a ndlp structure. If the
+ * count goes to 0, this indicates the the associated nodelist should be
+ * freed. Returning 1 indicates the ndlp resource has been released; on the
+ * other hand, returning 0 indicates the ndlp resource has not been released
+ * yet.
+ */
+int
+lpfc_nlp_put(struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_hba *phba;
+ unsigned long flags;
+
+ if (!ndlp)
+ return 1;
+
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
+ "node put: did:x%x flg:x%x refcnt:x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ kref_read(&ndlp->kref));
+ 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
+ * after previous one has done ndlp memory free.
+ */
+ if (NLP_CHK_FREE_ACK(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
+ "0274 lpfc_nlp_put: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ kref_read(&ndlp->kref));
+ return 1;
+ }
+ /* Check the ndlp inactivate log flag to avoid the possible
+ * race condition that kref_put got invoked again after ndlp
+ * is already in inactivating state.
+ */
+ if (NLP_CHK_IACT_REQ(ndlp)) {
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
+ "0275 lpfc_nlp_put: ndlp:x%p "
+ "usgmap:x%x refcnt:%d\n",
+ (void *)ndlp, ndlp->nlp_usg_map,
+ kref_read(&ndlp->kref));
+ return 1;
+ }
+ /* For last put, mark the ndlp usage flags to make sure no
+ * other kref_get and kref_put on the same ndlp shall get
+ * in between the process when the final kref_put has been
+ * invoked on this ndlp.
+ */
+ if (kref_read(&ndlp->kref) == 1) {
+ /* Indicate ndlp is put to inactive state. */
+ NLP_SET_IACT_REQ(ndlp);
+ /* Acknowledge ndlp memory free has been seen. */
+ if (NLP_CHK_FREE_REQ(ndlp))
+ NLP_SET_FREE_ACK(ndlp);
+ }
+ spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ /* Note, the kref_put returns 1 when decrementing a reference
+ * count that was 1, it invokes the release callback function,
+ * but it still left the reference count as 1 (not actually
+ * performs the last decrementation). Otherwise, it actually
+ * decrements the reference count and returns 0.
+ */
+ return kref_put(&ndlp->kref, lpfc_nlp_release);
+}
+
+/* This routine free's the specified nodelist if it is not in use
+ * by any other discovery thread. This routine returns 1 if the
+ * ndlp has been freed. A return value of 0 indicates the ndlp is
+ * not yet been released.
+ */
+int
+lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
+{
+ lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
+ "node not used: did:x%x flg:x%x refcnt:x%x",
+ ndlp->nlp_DID, ndlp->nlp_flag,
+ kref_read(&ndlp->kref));
+ if (kref_read(&ndlp->kref) == 1)
+ if (lpfc_nlp_put(ndlp))
+ return 1;
+ return 0;
+}
+
+/**
+ * lpfc_fcf_inuse - Check if FCF can be unregistered.
+ * @phba: Pointer to hba context object.
+ *
+ * This function iterate through all FC nodes associated
+ * will all vports to check if there is any node with
+ * fc_rports associated with it. If there is an fc_rport
+ * associated with the node, then the node is either in
+ * discovered state or its devloss_timer is pending.
+ */
+static int
+lpfc_fcf_inuse(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ int i, ret = 0;
+ struct lpfc_nodelist *ndlp;
+ struct Scsi_Host *shost;
+
+ vports = lpfc_create_vport_work_array(phba);
+
+ /* If driver cannot allocate memory, indicate fcf is in use */
+ if (!vports)
+ return 1;
+
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ /*
+ * IF the CVL_RCVD bit is not set then we have sent the
+ * flogi.
+ * If dev_loss fires while we are waiting we do not want to
+ * unreg the fcf.
+ */
+ if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
+ spin_unlock_irq(shost->host_lock);
+ ret = 1;
+ goto out;
+ }
+ list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
+ if (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;
+ 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;
+
+ /* 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);
+
+}