/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2008 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
*******************************************************************/
#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 <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
+#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
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)
return;
}
- phba = ndlp->vport->phba;
+ phba = ndlp->phba;
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
"rport terminate: sid:x%x did:x%x flg:x%x",
return;
}
-/*
- * This function is called from the worker thread when dev_loss_tmo
- * expire.
- */
-static void
+/**
+ * lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
+ * @ndlp: Pointer to remote node object.
+ *
+ * This function is called from the worker thread when devloss timeout timer
+ * expires. For SLI4 host, this routine shall return 1 when at lease one
+ * remote node, including this @ndlp, is still in use of FCF; otherwise, this
+ * routine shall return 0 when there is no remote node is still in use of FCF
+ * when devloss timeout happened to this @ndlp.
+ **/
+static int
lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
{
struct lpfc_rport_data *rdata;
int put_node;
int put_rport;
int warn_on = 0;
+ int fcf_inuse = 0;
rport = ndlp->rport;
if (!rport)
- return;
+ return fcf_inuse;
rdata = rport->dd_data;
name = (uint8_t *) &ndlp->nlp_portname;
vport = ndlp->vport;
phba = vport->phba;
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ fcf_inuse = lpfc_fcf_inuse(phba);
+
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport devlosstmo:did:x%x type:x%x id:x%x",
ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
lpfc_nlp_put(ndlp);
if (put_rport)
put_device(&rport->dev);
- return;
+ return fcf_inuse;
}
if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID);
- return;
+ return fcf_inuse;
}
if (ndlp->nlp_type & NLP_FABRIC) {
lpfc_nlp_put(ndlp);
if (put_rport)
put_device(&rport->dev);
- return;
+ return fcf_inuse;
}
if (ndlp->nlp_sid != NLP_NO_SID) {
if (!(vport->load_flag & FC_UNLOADING) &&
!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
!(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
- (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
+ (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
+ (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) &&
+ (ndlp->nlp_state != NLP_STE_PRLI_ISSUE))
lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
+
+ return fcf_inuse;
+}
+
+/**
+ * lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
+ * @phba: Pointer to hba context object.
+ * @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
+ * @nlp_did: remote node identifer with devloss timeout.
+ *
+ * This function is called from the worker thread after invoking devloss
+ * timeout handler and releasing the reference count for the ndlp with
+ * which the devloss timeout was handled for SLI4 host. For the devloss
+ * timeout of the last remote node which had been in use of FCF, when this
+ * routine is invoked, it shall be guaranteed that none of the remote are
+ * in-use of FCF. When devloss timeout to the last remote using the FCF,
+ * if the FIP engine is neither in FCF table scan process nor roundrobin
+ * failover process, the in-use FCF shall be unregistered. If the FIP
+ * engine is in FCF discovery process, the devloss timeout state shall
+ * be set for either the FCF table scan process or roundrobin failover
+ * process to unregister the in-use FCF.
+ **/
+static void
+lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
+ uint32_t nlp_did)
+{
+ /* If devloss timeout happened to a remote node when FCF had no
+ * longer been in-use, do nothing.
+ */
+ if (!fcf_inuse)
+ return;
+
+ if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
+ spin_lock_irq(&phba->hbalock);
+ if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
+ if (phba->hba_flag & HBA_DEVLOSS_TMO) {
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+ phba->hba_flag |= HBA_DEVLOSS_TMO;
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2847 Last remote node (x%x) using "
+ "FCF devloss tmo\n", nlp_did);
+ }
+ if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2868 Devloss tmo to FCF rediscovery "
+ "in progress\n");
+ return;
+ }
+ if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2869 Devloss tmo to idle FIP engine, "
+ "unreg in-use FCF and rescan.\n");
+ /* Unregister in-use FCF and rescan */
+ lpfc_unregister_fcf_rescan(phba);
+ return;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ if (phba->hba_flag & FCF_TS_INPROG)
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2870 FCF table scan in progress\n");
+ if (phba->hba_flag & FCF_RR_INPROG)
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2871 FLOGI roundrobin FCF failover "
+ "in progress\n");
+ }
+ lpfc_unregister_unused_fcf(phba);
}
/**
ret = kzalloc(sizeof(struct lpfc_fast_path_event),
GFP_ATOMIC);
- if (ret)
+ 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;
+ INIT_LIST_HEAD(&ret->work_evt.evt_listp);
+ ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
+ }
return ret;
}
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)) {
break;
case LPFC_EVT_DEV_LOSS:
ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
- lpfc_dev_loss_tmo_handler(ndlp);
+ fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
free_evt = 0;
/* decrement the node reference count held for
* this queued work
*/
+ nlp_did = ndlp->nlp_DID;
lpfc_nlp_put(ndlp);
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_sli4_post_dev_loss_tmo_handler(phba,
+ fcf_inuse,
+ nlp_did);
break;
case LPFC_EVT_ONLINE:
if (phba->link_state < LPFC_LINK_DOWN)
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);
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_LATT)
lpfc_handle_latt(phba);
+ /* Process SLI4 events */
+ if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
+ if (phba->hba_flag & HBA_RRQ_ACTIVE)
+ lpfc_handle_rrq_active(phba);
+ if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
+ lpfc_sli4_fcp_xri_abort_event_proc(phba);
+ if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
+ lpfc_sli4_els_xri_abort_event_proc(phba);
+ if (phba->hba_flag & ASYNC_EVENT)
+ lpfc_sli4_async_event_proc(phba);
+ if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
+ }
+ if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
+ lpfc_sli4_fcf_redisc_event_proc(phba);
+ }
+
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
- for(i = 0; i <= phba->max_vpi; i++) {
+ for (i = 0; i <= phba->max_vports; i++) {
/*
* We could have no vports in array if unloading, so if
* this happens then just use the pport
lpfc_ramp_down_queue_handler(phba);
if (work_port_events & WORKER_RAMP_UP_QUEUE)
lpfc_ramp_up_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 = &phba->sli.ring[LPFC_ELS_RING];
status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
status >>= (4*LPFC_ELS_RING);
- if ((status & HA_RXMASK)
- || (pring->flag & LPFC_DEFERRED_RING_EVENT)) {
+ if ((status & HA_RXMASK) ||
+ (pring->flag & LPFC_DEFERRED_RING_EVENT) ||
+ (phba->hba_flag & HBA_SP_QUEUE_EVT)) {
if (pring->flag & LPFC_STOP_IOCB_EVENT) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
/* Set the lpfc data pending flag */
(status &
HA_RXMASK));
}
+ if ((phba->sli_rev == LPFC_SLI_REV4) && pring->txq_cnt)
+ lpfc_drain_txq(phba);
/*
* Turn on Ring interrupts
*/
- spin_lock_irq(&phba->hbalock);
- control = readl(phba->HCregaddr);
- if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
- lpfc_debugfs_slow_ring_trc(phba,
- "WRK Enable ring: cntl:x%x hacopy:x%x",
- control, ha_copy, 0);
-
- control |= (HC_R0INT_ENA << LPFC_ELS_RING);
- writel(control, phba->HCregaddr);
- readl(phba->HCregaddr); /* flush */
- }
- else {
- lpfc_debugfs_slow_ring_trc(phba,
- "WRK Ring ok: cntl:x%x hacopy:x%x",
- control, ha_copy, 0);
+ if (phba->sli_rev <= LPFC_SLI_REV3) {
+ spin_lock_irq(&phba->hbalock);
+ control = readl(phba->HCregaddr);
+ if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
+ lpfc_debugfs_slow_ring_trc(phba,
+ "WRK Enable ring: cntl:x%x hacopy:x%x",
+ control, ha_copy, 0);
+
+ control |= (HC_R0INT_ENA << LPFC_ELS_RING);
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ } else {
+ lpfc_debugfs_slow_ring_trc(phba,
+ "WRK Ring ok: cntl:x%x hacopy:x%x",
+ control, ha_copy, 0);
+ }
+ spin_unlock_irq(&phba->hbalock);
}
- spin_unlock_irq(&phba->hbalock);
}
lpfc_work_list_done(phba);
}
/*
* This is only called to handle FC worker events. Since this a rare
- * occurance, we allocate a struct lpfc_work_evt structure here instead of
+ * occurrence, we allocate a struct lpfc_work_evt structure here instead of
* embedding it in the IOCB.
*/
int
lpfc_unreg_rpi(vport, ndlp);
/* Leave Fabric nodes alone on link down */
- if (!remove && ndlp->nlp_type & NLP_FABRIC)
+ if ((phba->sli_rev < LPFC_SLI_REV4) &&
+ (!remove && ndlp->nlp_type & NLP_FABRIC))
continue;
rc = lpfc_disc_state_machine(vport, ndlp, NULL,
remove
: 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;
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);
lpfc_can_disctmo(vport);
}
-static void
+void
lpfc_linkdown_port(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
lpfc_port_link_failure(vport);
+ /* Stop delayed Nport discovery */
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_DISC_DELAYED;
+ spin_unlock_irq(shost->host_lock);
+ del_timer_sync(&vport->delayed_disc_tmo);
}
int
if (phba->link_state == LPFC_LINK_DOWN)
return 0;
+
+ /* Block all SCSI stack I/Os */
+ lpfc_scsi_dev_block(phba);
+
spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
+ spin_unlock_irq(&phba->hbalock);
if (phba->link_state > LPFC_LINK_DOWN) {
phba->link_state = LPFC_LINK_DOWN;
+ spin_lock_irq(shost->host_lock);
phba->pport->fc_flag &= ~FC_LBIT;
+ spin_unlock_irq(shost->host_lock);
}
- spin_unlock_irq(&phba->hbalock);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
- for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
/* Issue a LINK DOWN event to all nodes */
lpfc_linkdown_port(vports[i]);
}
/* Clean up any firmware default rpi's */
mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mb) {
- lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
+ lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
mb->vport = vport;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
struct lpfc_vport **vports;
int i;
+ lpfc_cleanup_wt_rrqs(phba);
phba->link_state = LPFC_LINK_UP;
/* Unblock fabric iocbs if they are blocked */
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
- for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
lpfc_linkup_port(vports[i]);
lpfc_destroy_vport_work_array(phba, vports);
- if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
+ (phba->sli_rev < LPFC_SLI_REV4))
lpfc_issue_clear_la(phba, phba->pport);
return 0;
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_sli *psli = &phba->sli;
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
uint32_t control;
/* Since we don't do discovery right now, turn these off here */
return;
}
-
-static void
-lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+
+static void
+lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+ struct lpfc_vport *vport = pmb->vport;
+
+ if (pmb->u.mb.mbxStatus)
+ goto out;
+
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ 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)
+ lpfc_initial_flogi(vport);
+ return;
+
+out:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0306 CONFIG_LINK mbxStatus error x%x "
+ "HBA state x%x\n",
+ pmb->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;
+}
+
+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 (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_copy_fcf_record - Copy fcf information to lpfc_hba.
+ * @fcf: pointer to driver fcf record.
+ * @new_fcf_record: pointer to fcf record.
+ *
+ * This routine copies the FCF information from the FCF
+ * record to lpfc_hba data structure.
+ **/
+static void
+lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
+ struct fcf_record *new_fcf_record)
+{
+ /* Fabric name */
+ fcf_rec->fabric_name[0] =
+ bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
+ fcf_rec->fabric_name[1] =
+ bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
+ fcf_rec->fabric_name[2] =
+ bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
+ fcf_rec->fabric_name[3] =
+ bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
+ fcf_rec->fabric_name[4] =
+ bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
+ fcf_rec->fabric_name[5] =
+ bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
+ fcf_rec->fabric_name[6] =
+ bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
+ fcf_rec->fabric_name[7] =
+ bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
+ /* Mac address */
+ fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
+ fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
+ fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
+ fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
+ fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
+ fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
+ /* FCF record index */
+ fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
+ /* FCF record priority */
+ fcf_rec->priority = new_fcf_record->fip_priority;
+ /* Switch name */
+ fcf_rec->switch_name[0] =
+ bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
+ fcf_rec->switch_name[1] =
+ bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
+ fcf_rec->switch_name[2] =
+ bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
+ fcf_rec->switch_name[3] =
+ bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
+ fcf_rec->switch_name[4] =
+ bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
+ fcf_rec->switch_name[5] =
+ bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
+ fcf_rec->switch_name[6] =
+ bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
+ fcf_rec->switch_name[7] =
+ bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
+}
+
+/**
+ * lpfc_update_fcf_record - Update driver fcf record
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_rec: pointer to driver fcf record.
+ * @new_fcf_record: pointer to hba fcf record.
+ * @addr_mode: address mode to be set to the driver fcf record.
+ * @vlan_id: vlan tag to be set to the driver fcf record.
+ * @flag: flag bits to be set to the driver fcf record.
+ *
+ * This routine updates the driver FCF record from the new HBA FCF record
+ * together with the address mode, vlan_id, and other informations. This
+ * routine is called with the host lock held.
+ **/
+static void
+__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
+ struct fcf_record *new_fcf_record, uint32_t addr_mode,
+ uint16_t vlan_id, uint32_t flag)
+{
+ /* Copy the fields from the HBA's FCF record */
+ lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
+ /* Update other fields of driver FCF record */
+ fcf_rec->addr_mode = addr_mode;
+ fcf_rec->vlan_id = vlan_id;
+ fcf_rec->flag |= (flag | RECORD_VALID);
+}
+
+/**
+ * lpfc_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->hba_flag |= FCF_RR_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_issue_init_vfi(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;
+ }
+ }
+
+ /* If FCF not available return 0 */
+ if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
+ !bf_get(lpfc_fcf_record_fcf_valid, 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 random32() 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 & random32());
+
+ /* Decision with probability 1/fcf_cnt */
+ if ((fcf_cnt * rand_num) < 0xFFFF)
+ return true;
+ else
+ return false;
+}
+
+/**
+ * lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox object.
+ * @next_fcf_index: pointer to holder of next fcf index.
+ *
+ * This routine parses the non-embedded fcf mailbox command by performing the
+ * necessarily error checking, non-embedded read FCF record mailbox command
+ * SGE parsing, and endianness swapping.
+ *
+ * Returns the pointer to the new FCF record in the non-embedded mailbox
+ * command DMA memory if successfully, other NULL.
+ */
+static struct fcf_record *
+lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
+ uint16_t *next_fcf_index)
+{
+ void *virt_addr;
+ dma_addr_t phys_addr;
+ struct lpfc_mbx_sge sge;
+ struct lpfc_mbx_read_fcf_tbl *read_fcf;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+ struct fcf_record *new_fcf_record;
+
+ /* Get the first SGE entry from the non-embedded DMA memory. This
+ * routine only uses a single SGE.
+ */
+ lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
+ phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
+ if (unlikely(!mboxq->sge_array)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "2524 Failed to get the non-embedded SGE "
+ "virtual address\n");
+ return NULL;
+ }
+ virt_addr = mboxq->sge_array->addr[0];
+
+ shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (shdr_status || shdr_add_status) {
+ if (shdr_status == STATUS_FCF_TABLE_EMPTY)
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2726 READ_FCF_RECORD Indicates empty "
+ "FCF table.\n");
+ else
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2521 READ_FCF_RECORD mailbox failed "
+ "with status x%x add_status x%x, "
+ "mbx\n", shdr_status, shdr_add_status);
+ return NULL;
+ }
+
+ /* Interpreting the returned information of the FCF record */
+ read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
+ lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
+ sizeof(struct lpfc_mbx_read_fcf_tbl));
+ *next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
+ new_fcf_record = (struct fcf_record *)(virt_addr +
+ sizeof(struct lpfc_mbx_read_fcf_tbl));
+ lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
+ offsetof(struct fcf_record, vlan_bitmap));
+ new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
+ new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
+
+ return new_fcf_record;
+}
+
+/**
+ * lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
+ * @phba: pointer to lpfc hba data structure.
+ * @fcf_record: pointer to the fcf record.
+ * @vlan_id: the lowest vlan identifier associated to this fcf record.
+ * @next_fcf_index: the index to the next fcf record in hba's fcf table.
+ *
+ * This routine logs the detailed FCF record if the LOG_FIP loggin is
+ * enabled.
+ **/
+static void
+lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
+ struct fcf_record *fcf_record,
+ uint16_t vlan_id,
+ uint16_t next_fcf_index)
+{
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2764 READ_FCF_RECORD:\n"
+ "\tFCF_Index : x%x\n"
+ "\tFCF_Avail : x%x\n"
+ "\tFCF_Valid : x%x\n"
+ "\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),
+ 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;
+ 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_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox object.
+ *
+ * This function iterates through all the fcf records available in
+ * HBA and chooses the optimal FCF record for discovery. After finding
+ * the FCF for discovery it registers the FCF record and kicks start
+ * discovery.
+ * If FCF_IN_USE flag is set in currently used FCF, the routine tries to
+ * use an FCF record which matches fabric name and mac address of the
+ * currently used FCF record.
+ * If the driver supports only one FCF, it will try to use the FCF record
+ * used by BOOT_BIOS.
+ */
+void
+lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct fcf_record *new_fcf_record;
+ uint32_t boot_flag, addr_mode;
+ uint16_t fcf_index, next_fcf_index;
+ struct lpfc_fcf_rec *fcf_rec = NULL;
+ uint16_t vlan_id;
+ uint32_t seed;
+ bool select_new_fcf;
+ int rc;
+
+ /* If there is pending FCoE event restart FCF table scan */
+ if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return;
+ }
+
+ /* Parse the FCF record from the non-embedded mailbox command */
+ new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
+ &next_fcf_index);
+ if (!new_fcf_record) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2765 Mailbox command READ_FCF_RECORD "
+ "failed to retrieve a FCF record.\n");
+ /* Let next new FCF event trigger fast failover */
+ spin_lock_irq(&phba->hbalock);
+ phba->hba_flag &= ~FCF_TS_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ return;
+ }
+
+ /* Check the FCF record against the connection list */
+ rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
+ &addr_mode, &vlan_id);
+
+ /* Log the FCF record information if turned on */
+ lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
+ next_fcf_index);
+
+ /*
+ * If the fcf record does not match with connect list entries
+ * read the next entry; otherwise, this is an eligible FCF
+ * record for roundrobin FCF failover.
+ */
+ if (!rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
+ "2781 FCF (x%x) failed connection "
+ "list check: (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));
+ 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_rr_index_set(phba, fcf_index);
+ 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 (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)\n",
+ phba->fcf.current_rec.fcf_indx);
+ goto out;
+ } else
+ lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
+ "2863 New FCF (x%x) matches "
+ "property of in-use FCF (x%x)\n",
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record),
+ phba->fcf.current_rec.fcf_indx);
+ }
+ /*
+ * Read next FCF record from HBA searching for the matching
+ * with in-use record only if not during the fast failover
+ * period. In case of fast failover period, it shall try to
+ * determine whether the FCF record just read should be the
+ * next candidate.
+ */
+ if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+ }
+ }
+ /*
+ * Update on failover FCF record only if it's in FCF fast-failover
+ * period; otherwise, update on current FCF record.
+ */
+ if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
+ fcf_rec = &phba->fcf.failover_rec;
+ else
+ fcf_rec = &phba->fcf.current_rec;
+
+ if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
+ /*
+ * If the driver FCF record does not have boot flag
+ * set and new hba fcf record has boot flag set, use
+ * the new hba fcf record.
+ */
+ if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
+ /* Choose this FCF record */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2837 Update current FCF record "
+ "(x%x) with new FCF record (x%x)\n",
+ fcf_rec->fcf_indx,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
+ addr_mode, vlan_id, BOOT_ENABLE);
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+ }
+ /*
+ * If the driver FCF record has boot flag set and the
+ * new hba FCF record does not have boot flag, read
+ * the next FCF record.
+ */
+ if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+ }
+ /*
+ * If the new hba FCF record has lower priority value
+ * than the driver FCF record, use the new record.
+ */
+ if (new_fcf_record->fip_priority < fcf_rec->priority) {
+ /* Choose the new FCF record with lower priority */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2838 Update current FCF record "
+ "(x%x) with new FCF record (x%x)\n",
+ fcf_rec->fcf_indx,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
+ addr_mode, vlan_id, 0);
+ /* Reset running random FCF selection count */
+ phba->fcf.eligible_fcf_cnt = 1;
+ } else if (new_fcf_record->fip_priority == fcf_rec->priority) {
+ /* Update running random FCF selection count */
+ phba->fcf.eligible_fcf_cnt++;
+ select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
+ phba->fcf.eligible_fcf_cnt);
+ if (select_new_fcf) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2839 Update current FCF record "
+ "(x%x) with new FCF record (x%x)\n",
+ fcf_rec->fcf_indx,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ /* Choose the new FCF by random selection */
+ __lpfc_update_fcf_record(phba, fcf_rec,
+ new_fcf_record,
+ addr_mode, vlan_id, 0);
+ }
+ }
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+ }
+ /*
+ * This is the first suitable FCF record, choose this record for
+ * initial best-fit FCF.
+ */
+ if (fcf_rec) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2840 Update initial FCF candidate "
+ "with FCF (x%x)\n",
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ __lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
+ addr_mode, vlan_id, (boot_flag ?
+ BOOT_ENABLE : 0));
+ phba->fcf.fcf_flag |= FCF_AVAILABLE;
+ /* Setup initial running random FCF selection count */
+ phba->fcf.eligible_fcf_cnt = 1;
+ /* Seeding the random number generator for random selection */
+ seed = (uint32_t)(0xFFFFFFFF & jiffies);
+ srandom32(seed);
+ }
+ spin_unlock_irq(&phba->hbalock);
+ goto read_next_fcf;
+
+read_next_fcf:
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
+ if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
+ /*
+ * Case of FCF fast failover scan
+ */
+
+ /*
+ * It has not found any suitable FCF record, cancel
+ * FCF scan inprogress, and do nothing
+ */
+ if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
+ "2782 No suitable FCF found: "
+ "(x%x/x%x)\n",
+ phba->fcoe_eventtag_at_fcf_scan,
+ bf_get(lpfc_fcf_record_fcf_index,
+ new_fcf_record));
+ spin_lock_irq(&phba->hbalock);
+ if (phba->hba_flag & HBA_DEVLOSS_TMO) {
+ phba->hba_flag &= ~FCF_TS_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ /* Unregister in-use FCF and rescan */
+ lpfc_printf_log(phba, KERN_INFO,
+ LOG_FIP,
+ "2864 On devloss tmo "
+ "unreg in-use FCF and "
+ "rescan FCF table\n");
+ lpfc_unregister_fcf_rescan(phba);
+ return;
+ }
+ /*
+ * Let next new FCF event trigger fast failover
+ */
+ phba->hba_flag &= ~FCF_TS_INPROG;
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+ /*
+ * It has found a suitable FCF record that is not
+ * the same as in-use FCF record, unregister the
+ * in-use FCF record, replace the in-use FCF record
+ * with the new FCF record, mark FCF fast failover
+ * completed, and then start register the new FCF
+ * record.
+ */
+
+ /* Unregister the current in-use FCF record */
+ lpfc_unregister_fcf(phba);
+
+ /* Replace in-use record with the new record */
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
+ "2842 Replace in-use FCF (x%x) "
+ "with failover FCF (x%x)\n",
+ phba->fcf.current_rec.fcf_indx,
+ phba->fcf.failover_rec.fcf_indx);
+ memcpy(&phba->fcf.current_rec,
+ &phba->fcf.failover_rec,
+ sizeof(struct lpfc_fcf_rec));
+ /*
+ * Mark the fast FCF failover rediscovery completed
+ * and the start of the first round of the roundrobin
+ * FCF failover.
+ */
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
+ spin_unlock_irq(&phba->hbalock);
+ /* Register to the new FCF record */
+ lpfc_register_fcf(phba);
+ } else {
+ /*
+ * In case of transaction period to fast FCF failover,
+ * do nothing when search to the end of the FCF table.
+ */
+ if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
+ (phba->fcf.fcf_flag & FCF_REDISC_PEND))
+ return;
+
+ if (phba->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_mbox_cmd_free(phba, mboxq);
+ 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.\n");
+ goto error_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_rr_index_set(phba, fcf_index);
+
+out:
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+}
+
+/**
+ * lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox data structure.
+ *
+ * This function handles completion of init vfi mailbox command.
+ */
+void
+lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_vport *vport = mboxq->vport;
+
+ if (mboxq->u.mb.mbxStatus && (mboxq->u.mb.mbxStatus != 0x4002)) {
+ 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;
+
+ 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_vport *vport = pmb->vport;
-
- if (pmb->mb.mbxStatus)
- goto out;
-
- mempool_free(pmb, phba->mbox_mem_pool);
+ struct lpfc_dmabuf *dmabuf = mboxq->context1;
+ struct lpfc_vport *vport = mboxq->vport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
- if (phba->fc_topology == 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;
+ if (mboxq->u.mb.mbxStatus) {
+ 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 fail_free_mem;
+ }
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ goto fail_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;
+ spin_unlock_irq(shost->host_lock);
- /* Start discovery by sending a FLOGI. port_state is identically
- * LPFC_FLOGI while waiting for FLOGI cmpl
- */
- if (vport->port_state != LPFC_FLOGI) {
- lpfc_initial_flogi(vport);
+ if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
+ /* For private loop just start discovery and we are done. */
+ if ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
+ (phba->alpa_map[0] == 0) &&
+ !(vport->fc_flag & FC_PUBLIC_LOOP)) {
+ /* Use loop map to make discovery list */
+ lpfc_disc_list_loopmap(vport);
+ /* Start discovery */
+ lpfc_disc_start(vport);
+ } else {
+ lpfc_start_fdiscs(phba);
+ lpfc_do_scr_ns_plogi(phba, vport);
+ }
}
- return;
-
-out:
- lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
- "0306 CONFIG_LINK mbxStatus error x%x "
- "HBA state x%x\n",
- pmb->mb.mbxStatus, vport->port_state);
- 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);
+fail_free_mem:
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
+ kfree(dmabuf);
return;
}
static void
lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
struct lpfc_vport *vport = pmb->vport;
memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
sizeof (struct serv_parm));
- if (phba->cfg_soft_wwnn)
- u64_to_wwn(phba->cfg_soft_wwnn,
- vport->fc_sparam.nodeName.u.wwn);
- if (phba->cfg_soft_wwpn)
- u64_to_wwn(phba->cfg_soft_wwpn,
- vport->fc_sparam.portName.u.wwn);
- memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
- sizeof(vport->fc_nodename));
- memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
- sizeof(vport->fc_portname));
+ lpfc_update_vport_wwn(vport);
if (vport->port_type == LPFC_PHYSICAL_PORT) {
memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
}
static void
-lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
+lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
{
struct lpfc_vport *vport = phba->pport;
- LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
+ LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
int i;
struct lpfc_dmabuf *mp;
int rc;
-
- sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ struct fcf_record *fcf_record;
spin_lock_irq(&phba->hbalock);
- switch (la->UlnkSpeed) {
- case LA_1GHZ_LINK:
- phba->fc_linkspeed = LA_1GHZ_LINK;
- break;
- case LA_2GHZ_LINK:
- phba->fc_linkspeed = LA_2GHZ_LINK;
- break;
- case LA_4GHZ_LINK:
- phba->fc_linkspeed = LA_4GHZ_LINK;
- break;
- case LA_8GHZ_LINK:
- phba->fc_linkspeed = LA_8GHZ_LINK;
+ switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
+ case LPFC_LINK_SPEED_1GHZ:
+ case LPFC_LINK_SPEED_2GHZ:
+ case LPFC_LINK_SPEED_4GHZ:
+ case LPFC_LINK_SPEED_8GHZ:
+ case LPFC_LINK_SPEED_10GHZ:
+ case LPFC_LINK_SPEED_16GHZ:
+ phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
break;
default:
- phba->fc_linkspeed = LA_UNKNW_LINK;
+ phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
break;
}
- phba->fc_topology = la->topology;
+ phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
- if (phba->fc_topology == TOPOLOGY_LOOP) {
+ if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
- if (phba->cfg_enable_npiv)
+ /* if npiv is enabled and this adapter supports npiv log
+ * a message that npiv is not supported in this topology
+ */
+ if (phba->cfg_enable_npiv && phba->max_vpi)
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1309 Link Up Event npiv not supported in loop "
"topology\n");
/* Get Loop Map information */
- if (la->il)
+ if (bf_get(lpfc_mbx_read_top_il, la))
vport->fc_flag |= FC_LBIT;
- vport->fc_myDID = la->granted_AL_PA;
- i = la->un.lilpBde64.tus.f.bdeSize;
+ vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
+ i = la->lilpBde64.tus.f.bdeSize;
if (i == 0) {
phba->alpa_map[0] = 0;
spin_unlock_irq(&phba->hbalock);
lpfc_linkup(phba);
- if (sparam_mbox) {
- lpfc_read_sparam(phba, sparam_mbox, 0);
- sparam_mbox->vport = vport;
- sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
- rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
- if (rc == MBX_NOT_FINISHED) {
- mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- mempool_free(sparam_mbox, phba->mbox_mem_pool);
- if (cfglink_mbox)
- mempool_free(cfglink_mbox, phba->mbox_mem_pool);
- goto out;
- }
+ sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!sparam_mbox)
+ goto out;
+
+ rc = lpfc_read_sparam(phba, sparam_mbox, 0);
+ if (rc) {
+ mempool_free(sparam_mbox, phba->mbox_mem_pool);
+ goto out;
+ }
+ sparam_mbox->vport = vport;
+ sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
+ rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(sparam_mbox, phba->mbox_mem_pool);
+ goto out;
}
- if (cfglink_mbox) {
+ if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+ cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!cfglink_mbox)
+ goto out;
vport->port_state = LPFC_LOCAL_CFG_LINK;
lpfc_config_link(phba, cfglink_mbox);
cfglink_mbox->vport = vport;
cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
- if (rc != MBX_NOT_FINISHED)
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(cfglink_mbox, phba->mbox_mem_pool);
+ goto out;
+ }
+ } else {
+ vport->port_state = LPFC_VPORT_UNKNOWN;
+ /*
+ * Add the driver's default FCF record at FCF index 0 now. This
+ * is phase 1 implementation that support FCF index 0 and driver
+ * defaults.
+ */
+ if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
+ fcf_record = kzalloc(sizeof(struct fcf_record),
+ GFP_KERNEL);
+ if (unlikely(!fcf_record)) {
+ lpfc_printf_log(phba, KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "2554 Could not allocate memory for "
+ "fcf record\n");
+ rc = -ENODEV;
+ goto out;
+ }
+
+ lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
+ LPFC_FCOE_FCF_DEF_INDEX);
+ rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
+ if (unlikely(rc)) {
+ lpfc_printf_log(phba, KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "2013 Could not manually add FCF "
+ "record 0, status %d\n", rc);
+ rc = -ENODEV;
+ kfree(fcf_record);
+ goto out;
+ }
+ kfree(fcf_record);
+ }
+ /*
+ * The driver is expected to do FIP/FCF. Call the port
+ * and get the FCF Table.
+ */
+ spin_lock_irq(&phba->hbalock);
+ if (phba->hba_flag & FCF_TS_INPROG) {
+ spin_unlock_irq(&phba->hbalock);
return;
- mempool_free(cfglink_mbox, phba->mbox_mem_pool);
+ }
+ /* This is the initial FCF discovery scan */
+ phba->fcf.fcf_flag |= FCF_INIT_DISC;
+ spin_unlock_irq(&phba->hbalock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
+ "2778 Start FCF table scan at linkup\n");
+ rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
+ LPFC_FCOE_FCF_GET_FIRST);
+ if (rc) {
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
+ spin_unlock_irq(&phba->hbalock);
+ goto out;
+ }
+ /* Reset FCF roundrobin bmask for new discovery */
+ memset(phba->fcf.fcf_rr_bmask, 0,
+ sizeof(*phba->fcf.fcf_rr_bmask));
}
+
+ return;
out:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
struct lpfc_sli *psli = &phba->sli;
spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_PROCESS_LA;
- control = readl(phba->HCregaddr);
- control |= HC_LAINT_ENA;
- writel(control, phba->HCregaddr);
- readl(phba->HCregaddr); /* flush */
+ if (phba->sli_rev <= LPFC_SLI_REV3) {
+ control = readl(phba->HCregaddr);
+ control |= HC_LAINT_ENA;
+ writel(control, phba->HCregaddr);
+ readl(phba->HCregaddr); /* flush */
+ }
spin_unlock_irq(&phba->hbalock);
}
{
lpfc_linkdown(phba);
lpfc_enable_la(phba);
+ lpfc_unregister_unused_fcf(phba);
/* turn on Link Attention interrupts - no CLEAR_LA needed */
}
/*
- * This routine handles processing a READ_LA mailbox
+ * This routine handles processing a READ_TOPOLOGY mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
-lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
- READ_LA_VAR *la;
- MAILBOX_t *mb = &pmb->mb;
+ struct lpfc_mbx_read_top *la;
+ MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
/* Unblock ELS traffic */
mb->mbxStatus, vport->port_state);
lpfc_mbx_issue_link_down(phba);
phba->link_state = LPFC_HBA_ERROR;
- goto lpfc_mbx_cmpl_read_la_free_mbuf;
+ goto lpfc_mbx_cmpl_read_topology_free_mbuf;
}
- la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
+ la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
memcpy(&phba->alpa_map[0], mp->virt, 128);
spin_lock_irq(shost->host_lock);
- if (la->pb)
+ if (bf_get(lpfc_mbx_read_top_pb, la))
vport->fc_flag |= FC_BYPASSED_MODE;
else
vport->fc_flag &= ~FC_BYPASSED_MODE;
spin_unlock_irq(shost->host_lock);
- if (((phba->fc_eventTag + 1) < la->eventTag) ||
+ if ((phba->fc_eventTag < la->eventTag) ||
(phba->fc_eventTag == la->eventTag)) {
phba->fc_stat.LinkMultiEvent++;
- if (la->attType == AT_LINK_UP)
+ if (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)
if (phba->fc_eventTag != 0)
lpfc_linkdown(phba);
}
phba->fc_eventTag = la->eventTag;
- if (la->mm)
+ spin_lock_irq(&phba->hbalock);
+ if (bf_get(lpfc_mbx_read_top_mm, la))
phba->sli.sli_flag |= LPFC_MENLO_MAINT;
else
phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
+ spin_unlock_irq(&phba->hbalock);
- if (la->attType == AT_LINK_UP && (!la->mm)) {
+ phba->link_events++;
+ if ((bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP) &&
+ (!bf_get(lpfc_mbx_read_top_mm, la))) {
phba->fc_stat.LinkUp++;
if (phba->link_flag & LS_LOOPBACK_MODE) {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1306 Link Up Event in loop back mode "
"x%x received Data: x%x x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
- la->granted_AL_PA, la->UlnkSpeed,
+ bf_get(lpfc_mbx_read_top_alpa_granted,
+ la),
+ bf_get(lpfc_mbx_read_top_link_spd, la),
phba->alpa_map[0]);
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1303 Link Up Event x%x received "
"Data: x%x x%x x%x x%x x%x x%x %d\n",
la->eventTag, phba->fc_eventTag,
- la->granted_AL_PA, la->UlnkSpeed,
+ bf_get(lpfc_mbx_read_top_alpa_granted,
+ la),
+ bf_get(lpfc_mbx_read_top_link_spd, la),
phba->alpa_map[0],
- la->mm, la->fa,
+ 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 (la->attType == AT_LINK_DOWN) {
+ } else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
+ LPFC_ATT_LINK_DOWN) {
phba->fc_stat.LinkDown++;
if (phba->link_flag & LS_LOOPBACK_MODE) {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"Data: x%x x%x x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag,
- la->mm, la->fa);
+ bf_get(lpfc_mbx_read_top_mm, la),
+ bf_get(lpfc_mbx_read_top_fa, la));
}
lpfc_mbx_issue_link_down(phba);
}
- if (la->mm && la->attType == AT_LINK_UP) {
+ if ((bf_get(lpfc_mbx_read_top_mm, la)) &&
+ (bf_get(lpfc_mbx_read_top_att_type, la) == LPFC_ATT_LINK_UP)) {
if (phba->link_state != LPFC_LINK_DOWN) {
phba->fc_stat.LinkDown++;
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
}
}
- if (la->fa) {
- if (la->mm)
+ if (bf_get(lpfc_mbx_read_top_fa, la)) {
+ if (bf_get(lpfc_mbx_read_top_mm, la))
lpfc_issue_clear_la(phba, vport);
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
- "1311 fa %d\n", la->fa);
+ "1311 fa %d\n",
+ bf_get(lpfc_mbx_read_top_fa, la));
}
-lpfc_mbx_cmpl_read_la_free_mbuf:
+lpfc_mbx_cmpl_read_topology_free_mbuf:
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
struct lpfc_vport *vport = pmb->vport;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
pmb->context1 = NULL;
+ pmb->context2 = NULL;
+
+ if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
+ ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
+
+ if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
+ ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
+ /* We rcvd a rscn after issuing this
+ * mbox reg login, we may have cycled
+ * back through the state and be
+ * back at reg login state so this
+ * mbox needs to be ignored becase
+ * there is another reg login in
+ * process.
+ */
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
+ spin_unlock_irq(shost->host_lock);
+ } else
+ /* Good status, call state machine */
+ lpfc_disc_state_machine(vport, ndlp, pmb,
+ NLP_EVT_CMPL_REG_LOGIN);
- /* Good status, call state machine */
- lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
static void
lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
switch (mb->mbxStatus) {
case 0x0011:
case 0x0020:
- case 0x9700:
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0911 cmpl_unreg_vpi, mb status = 0x%x\n",
mb->mbxStatus);
break;
+ /* If VPI is busy, reset the HBA */
+ case 0x9700:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
+ "2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
+ vport->vpi, mb->mbxStatus);
+ if (!(phba->pport->load_flag & FC_UNLOADING))
+ lpfc_workq_post_event(phba, NULL, NULL,
+ LPFC_EVT_RESET_HBA);
}
+ spin_lock_irq(shost->host_lock);
+ vport->vpi_state &= ~LPFC_VPI_REGISTERED;
+ vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ spin_unlock_irq(shost->host_lock);
vport->unreg_vpi_cmpl = VPORT_OK;
mempool_free(pmb, phba->mbox_mem_pool);
+ lpfc_cleanup_vports_rrqs(vport, NULL);
/*
* This shost reference might have been taken at the beginning of
* lpfc_vport_delete()
*/
- if (vport->load_flag & FC_UNLOADING)
+ if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
scsi_host_put(shost);
}
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
switch (mb->mbxStatus) {
case 0x0011:
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)
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 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;
+ }
+
+ 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 {
+ if (lpfc_dump_static_vport(phba, pmb, offset))
+ goto out;
+
+ pmb->vport = phba->pport;
+ rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
+
+ if ((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",
+ 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->context2;
+ 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 (rc != MBX_TIMEOUT) {
+ if (pmb->context2) {
+ mp = (struct lpfc_dmabuf *) pmb->context2;
+ 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
lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp;
- struct lpfc_vport **vports;
- int i;
ndlp = (struct lpfc_nodelist *) pmb->context2;
pmb->context1 = NULL;
pmb->context2 = NULL;
+
if (mb->mbxStatus) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "0258 Register Fabric login error: 0x%x\n",
+ mb->mbxStatus);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
- if (phba->fc_topology == TOPOLOGY_LOOP) {
+ if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
/* FLOGI failed, use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
- lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
- "0258 Register Fabric login error: 0x%x\n",
- mb->mbxStatus);
/* Decrement the reference count to ndlp after the reference
* to the ndlp are done.
*/
return;
}
- ndlp->nlp_rpi = mb->un.varWords[0];
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ ndlp->nlp_rpi = mb->un.varWords[0];
+ ndlp->nlp_flag |= NLP_RPI_REGISTERED;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
- vports = lpfc_create_vport_work_array(phba);
- if (vports != NULL)
- for(i = 0;
- i <= phba->max_vpi && vports[i] != NULL;
- i++) {
- if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
- continue;
- if (phba->fc_topology == TOPOLOGY_LOOP) {
- lpfc_vport_set_state(vports[i],
- FC_VPORT_LINKDOWN);
- 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(vport, KERN_ERR,
- LOG_ELS,
- "0259 No NPIV "
- "Fabric support\n");
- }
- }
- lpfc_destroy_vport_work_array(phba, vports);
+ /* when physical port receive logo donot start
+ * vport discovery */
+ if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
+ lpfc_start_fdiscs(phba);
+ else
+ vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
lpfc_do_scr_ns_plogi(phba, vport);
}
void
lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
struct lpfc_vport *vport = pmb->vport;
+ pmb->context1 = NULL;
+ pmb->context2 = NULL;
+
if (mb->mbxStatus) {
out:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+ "0260 Register NameServer error: 0x%x\n",
+ mb->mbxStatus);
/* decrement the node reference count held for this
* callback function.
*/
/* If no other thread is using the ndlp, free it */
lpfc_nlp_not_used(ndlp);
- if (phba->fc_topology == TOPOLOGY_LOOP) {
+ if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
/*
* RegLogin failed, use loop map to make discovery
* list
return;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
- lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
- "0260 Register NameServer error: 0x%x\n",
- mb->mbxStatus);
return;
}
- pmb->context1 = NULL;
-
- ndlp->nlp_rpi = mb->un.varWords[0];
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ ndlp->nlp_rpi = mb->un.varWords[0];
+ ndlp->nlp_flag |= NLP_RPI_REGISTERED;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
"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,
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);
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (new_state == NLP_STE_UNMAPPED_NODE) {
- ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
ndlp->nlp_type |= NLP_FC_NODE;
}
* @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.
+ *
+ * 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,
ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
ndlp->nlp_DID = did;
ndlp->vport = vport;
+ ndlp->phba = vport->phba;
ndlp->nlp_sid = NLP_NO_SID;
kref_init(&ndlp->kref);
NLP_INT_NODE_ACT(ndlp);
atomic_set(&ndlp->cmd_pending, 0);
- ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
+ ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
+ if (vport->phba->sli_rev == LPFC_SLI_REV4)
+ ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
}
struct lpfc_nodelist *
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
return;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (vport->phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_cleanup_vports_rrqs(vport, ndlp);
lpfc_nlp_put(ndlp);
return;
}
if (pring->ringno == LPFC_ELS_RING) {
switch (icmd->ulpCommand) {
case CMD_GEN_REQUEST64_CR:
- if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi)
+ if (iocb->context_un.ndlp == ndlp)
return 1;
case CMD_ELS_REQUEST64_CR:
if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *iocb, *next_iocb;
- IOCB_t *icmd;
- uint32_t rpi, i;
+ uint32_t i;
lpfc_fabric_abort_nport(ndlp);
* by firmware with a no rpi error.
*/
psli = &phba->sli;
- rpi = ndlp->nlp_rpi;
- if (rpi) {
+ if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
/* Now process each ring */
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
}
}
- while (!list_empty(&completions)) {
- iocb = list_get_first(&completions, struct lpfc_iocbq, list);
- list_del_init(&iocb->list);
-
- if (!iocb->iocb_cmpl)
- lpfc_sli_release_iocbq(phba, iocb);
- else {
- icmd = &iocb->iocb;
- icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl)(phba, iocb, iocb);
- }
- }
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
return 0;
}
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
+ uint16_t rpi;
- if (ndlp->nlp_rpi) {
+ if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
- lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
+ /* SLI4 ports require the physical rpi value. */
+ rpi = ndlp->nlp_rpi;
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
+ lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
mempool_free(mbox, phba->mbox_mem_pool);
}
lpfc_no_rpi(phba, ndlp);
- ndlp->nlp_rpi = 0;
+
+ if (phba->sli_rev != LPFC_SLI_REV4)
+ ndlp->nlp_rpi = 0;
+ ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
+ ndlp->nlp_flag &= ~NLP_NPR_ADISC;
return 1;
}
return 0;
}
+/**
+ * lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unregister all the currently registered RPIs
+ * to the HBA.
+ **/
+void
+lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ struct lpfc_nodelist *ndlp;
+ struct Scsi_Host *shost;
+ int i;
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (!vports) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
+ "2884 Vport array allocation failed \n");
+ return;
+ }
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
+ if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
+ /* The mempool_alloc might sleep */
+ spin_unlock_irq(shost->host_lock);
+ lpfc_unreg_rpi(vports[i], ndlp);
+ spin_lock_irq(shost->host_lock);
+ }
+ }
+ spin_unlock_irq(shost->host_lock);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+}
+
void
lpfc_unreg_all_rpis(struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *mbox;
int rc;
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ lpfc_sli4_unreg_all_rpis(vport);
+ return;
+ }
+
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
- lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
+ lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
+ mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->context1 = NULL;
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
- if (rc == MBX_NOT_FINISHED) {
+ if (rc != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
- }
+
+ if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
+ "1836 Could not issue "
+ "unreg_login(all_rpis) status %d\n", rc);
}
}
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
- lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
+ lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
+ mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->context1 = NULL;
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
- if (rc == MBX_NOT_FINISHED) {
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mbox, phba->mbox_mem_pool);
+
+ if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
"1815 Could not issue "
- "unreg_did (default rpis)\n");
- mempool_free(mbox, phba->mbox_mem_pool);
- }
+ "unreg_did (default rpis) status %d\n",
+ rc);
}
}
/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
if ((mb = phba->sli.mbox_active)) {
- if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
+ if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
(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) ||
+ (ndlp != (struct lpfc_nodelist *) mb->context2))
+ continue;
+
+ mb->context2 = NULL;
+ mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ }
+
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
- if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
+ if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
(ndlp == (struct lpfc_nodelist *) mb->context2)) {
mp = (struct lpfc_dmabuf *) (mb->context1);
if (mp) {
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;
int rc;
lpfc_cancel_retry_delay_tmo(vport, ndlp);
- if (ndlp->nlp_flag & NLP_DEFER_RM && !ndlp->nlp_rpi) {
+ if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
+ !(ndlp->nlp_flag & NLP_REG_LOGIN_SEND) &&
+ !(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
/* For this case we need to cleanup the default rpi
* allocated by the firmware.
*/
if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
!= NULL) {
- rc = lpfc_reg_login(phba, vport->vpi, ndlp->nlp_DID,
- (uint8_t *) &vport->fc_sparam, mbox, 0);
+ rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
+ (uint8_t *) &vport->fc_sparam, mbox, ndlp->nlp_rpi);
if (rc) {
mempool_free(mbox, phba->mbox_mem_pool);
}
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
+ unsigned long iflags;
- spin_lock_irq(shost->host_lock);
+ spin_lock_irqsave(shost->host_lock, iflags);
ndlp = __lpfc_findnode_did(vport, did);
- spin_unlock_irq(shost->host_lock);
+ spin_unlock_irqrestore(shost->host_lock, iflags);
return ndlp;
}
if ((vport->fc_flag & FC_RSCN_MODE) &&
!(vport->fc_flag & FC_NDISC_ACTIVE)) {
if (lpfc_rscn_payload_check(vport, did)) {
- /* If we've already recieved a PLOGI from this NPort
+ /* If we've already received a PLOGI from this NPort
* we don't need to try to discover it again.
*/
if (ndlp->nlp_flag & NLP_RCV_PLOGI)
return NULL;
- spin_lock_irq(shost->host_lock);
- ndlp->nlp_flag |= NLP_NPR_2B_DISC;
- spin_unlock_irq(shost->host_lock);
-
/* Since this node is marked for discovery,
* delay timeout is not needed.
*/
lpfc_cancel_retry_delay_tmo(vport, ndlp);
+ spin_lock_irq(shost->host_lock);
+ ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+ spin_unlock_irq(shost->host_lock);
} else
ndlp = NULL;
} else {
- /* If we've already recieved a PLOGI from this NPort,
+ /* If we've already received a PLOGI from this NPort,
* or we are already in the process of discovery on it,
* we don't need to try to discover it again.
*/
if (!lpfc_is_link_up(phba))
return;
- if (phba->fc_topology != TOPOLOGY_LOOP)
+ if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
return;
/* Check for loop map present or not */
* clear_la then don't send it.
*/
if ((phba->link_state >= LPFC_CLEAR_LA) ||
- (vport->port_type != LPFC_PHYSICAL_PORT))
+ (vport->port_type != LPFC_PHYSICAL_PORT) ||
+ (phba->sli_rev == LPFC_SLI_REV4))
return;
/* Link up discovery */
regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (regvpimbox) {
- lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, regvpimbox);
+ lpfc_reg_vpi(vport, regvpimbox);
regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
regvpimbox->vport = vport;
if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
if (num_sent)
return;
- /*
- * For SLI3, cmpl_reg_vpi will set port_state to READY, and
- * continue discovery.
- */
+ /* Register the VPI for SLI3, NON-NPIV only. */
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
!(vport->fc_flag & FC_PT2PT) &&
- !(vport->fc_flag & FC_RSCN_MODE)) {
+ !(vport->fc_flag & FC_RSCN_MODE) &&
+ (phba->sli_rev < LPFC_SLI_REV4)) {
lpfc_issue_reg_vpi(phba, vport);
return;
}
}
spin_unlock_irq(&phba->hbalock);
- while (!list_empty(&completions)) {
- iocb = list_get_first(&completions, struct lpfc_iocbq, list);
- list_del_init(&iocb->list);
-
- if (!iocb->iocb_cmpl)
- lpfc_sli_release_iocbq(phba, iocb);
- else {
- icmd = &iocb->iocb;
- icmd->ulpStatus = IOSTAT_LOCAL_REJECT;
- icmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
- (iocb->iocb_cmpl) (phba, iocb, iocb);
- }
- }
+ /* Cancel all the IOCBs from the completions list */
+ lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
+ IOERR_SLI_ABORTED);
}
static void
}
}
if (vport->port_state != LPFC_FLOGI) {
- lpfc_initial_flogi(vport);
+ if (phba->sli_rev <= LPFC_SLI_REV3)
+ lpfc_initial_flogi(vport);
+ else
+ lpfc_issue_init_vfi(vport);
return;
}
break;
* set port_state to PORT_READY if SLI2.
* cmpl_reg_vpi will set port_state to READY for SLI3.
*/
- if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
- lpfc_issue_reg_vpi(phba, vport);
- else { /* NPIV Not enabled */
- lpfc_issue_clear_la(phba, vport);
- vport->port_state = LPFC_VPORT_READY;
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ lpfc_issue_reg_vpi(phba, vport);
+ else {
+ lpfc_issue_clear_la(phba, vport);
+ vport->port_state = LPFC_VPORT_READY;
+ }
}
/* Setup and issue mailbox INITIALIZE LINK command */
lpfc_linkdown(phba);
lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
phba->cfg_link_speed);
- initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
+ initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
initlinkmbox->vport = vport;
initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
* set port_state to PORT_READY if SLI2.
* cmpl_reg_vpi will set port_state to READY for SLI3.
*/
- if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
- lpfc_issue_reg_vpi(phba, vport);
- else { /* NPIV Not enabled */
- lpfc_issue_clear_la(phba, vport);
- vport->port_state = LPFC_VPORT_READY;
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ lpfc_issue_reg_vpi(phba, vport);
+ else { /* NPIV Not enabled */
+ lpfc_issue_clear_la(phba, vport);
+ vport->port_state = LPFC_VPORT_READY;
+ }
}
break;
void
lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
struct lpfc_vport *vport = pmb->vport;
pmb->context1 = NULL;
+ pmb->context2 = NULL;
- ndlp->nlp_rpi = mb->un.varWords[0];
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ ndlp->nlp_rpi = mb->un.varWords[0];
+ ndlp->nlp_flag |= NLP_RPI_REGISTERED;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
lpfc_nlp_remove(ndlp->vport, ndlp);
/* clear the ndlp active flag for all release cases */
- phba = ndlp->vport->phba;
+ phba = ndlp->phba;
spin_lock_irqsave(&phba->ndlp_lock, flags);
NLP_CLR_NODE_ACT(ndlp);
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
/* free ndlp memory for final ndlp release */
if (NLP_CHK_FREE_REQ(ndlp)) {
kfree(ndlp->lat_data);
- mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
+ mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
}
}
* ndlp reference count that is in the process of being
* released.
*/
- phba = ndlp->vport->phba;
+ phba = ndlp->phba;
spin_lock_irqsave(&phba->ndlp_lock, flags);
if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
"node put: did:x%x flg:x%x refcnt:x%x",
ndlp->nlp_DID, ndlp->nlp_flag,
atomic_read(&ndlp->kref.refcount));
- phba = ndlp->vport->phba;
+ phba = ndlp->phba;
spin_lock_irqsave(&phba->ndlp_lock, flags);
/* Check the ndlp memory free acknowledge flag to avoid the
* possible race condition that kref_put got invoked again
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 {
+ lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
+ "2624 RPI %x DID %x flg %x still "
+ "logged in\n",
+ ndlp->nlp_rpi, ndlp->nlp_DID,
+ ndlp->nlp_flag);
+ if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
+ ret = 1;
+ }
+ }
+ 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.
+ */
+static 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)
+{
+ LPFC_MBOXQ_t *mbox;
+ struct lpfc_vport **vports;
+ struct lpfc_nodelist *ndlp;
+ struct Scsi_Host *shost;
+ int i, 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);
+
+ /* Cleanup any outstanding ELS commands */
+ lpfc_els_flush_all_cmd(phba);
+
+ /* Unregister VFI */
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2556 UNREG_VFI mbox allocation failed"
+ "HBA state x%x\n", phba->pport->port_state);
+ return -ENOMEM;
+ }
+
+ lpfc_unreg_vfi(mbox, phba->pport);
+ mbox->vport = phba->pport;
+ mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
+
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2557 UNREG_VFI issue mbox failed rc x%x "
+ "HBA state x%x\n",
+ rc, phba->pport->port_state);
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return -EIO;
+ }
+
+ shost = lpfc_shost_from_vport(phba->pport);
+ spin_lock_irq(shost->host_lock);
+ phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
+ spin_unlock_irq(shost->host_lock);
+
+ return 0;
+}
+
+/**
+ * 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 */
+ memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
+
+ 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));
+ conn_entry->conn_rec.vlan_tag =
+ le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
+ conn_entry->conn_rec.flags =
+ le16_to_cpu(conn_entry->conn_rec.flags);
+ list_add_tail(&conn_entry->list,
+ &phba->fcf_conn_rec_list);
+ }
+}
+
+/**
+ * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
+ * @phba: Pointer to hba context object.
+ * @buff: Buffer containing the FCoE parameter data structure.
+ *
+ * This function update driver data structure with config
+ * parameters read from config region 23.
+ */
+static void
+lpfc_read_fcoe_param(struct lpfc_hba *phba,
+ uint8_t *buff)
+{
+ struct lpfc_fip_param_hdr *fcoe_param_hdr;
+ struct lpfc_fcoe_params *fcoe_param;
+
+ fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
+ buff;
+ fcoe_param = (struct lpfc_fcoe_params *)
+ (buff + sizeof(struct lpfc_fip_param_hdr));
+
+ if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
+ (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
+ return;
+
+ if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
+ phba->valid_vlan = 1;
+ phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
+ 0xFFF;
+ }
+
+ phba->fc_map[0] = fcoe_param->fc_map[0];
+ phba->fc_map[1] = fcoe_param->fc_map[1];
+ phba->fc_map[2] = fcoe_param->fc_map[2];
+ return;
+}
+
+/**
+ * lpfc_get_rec_conf23 - Get a record type in config region data.
+ * @buff: Buffer containing config region 23 data.
+ * @size: Size of the data buffer.
+ * @rec_type: Record type to be searched.
+ *
+ * This function searches config region data to find the beginning
+ * of the record specified by record_type. If record found, this
+ * function return pointer to the record else return NULL.
+ */
+static uint8_t *
+lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
+{
+ uint32_t offset = 0, rec_length;
+
+ if ((buff[0] == LPFC_REGION23_LAST_REC) ||
+ (size < sizeof(uint32_t)))
+ return NULL;
+
+ rec_length = buff[offset + 1];
+
+ /*
+ * One TLV record has one word header and number of data words
+ * specified in the rec_length field of the record header.
+ */
+ while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
+ <= size) {
+ if (buff[offset] == rec_type)
+ return &buff[offset];
+
+ if (buff[offset] == LPFC_REGION23_LAST_REC)
+ return NULL;
+
+ offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
+ rec_length = buff[offset + 1];
+ }
+ return NULL;
+}
+
+/**
+ * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
+ * @phba: Pointer to lpfc_hba data structure.
+ * @buff: Buffer containing config region 23 data.
+ * @size: Size of the data buffer.
+ *
+ * This function parses the FCoE config parameters in config region 23 and
+ * populate driver data structure with the parameters.
+ */
+void
+lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
+ uint8_t *buff,
+ uint32_t size)
+{
+ uint32_t offset = 0, rec_length;
+ uint8_t *rec_ptr;
+
+ /*
+ * If data size is less than 2 words signature and version cannot be
+ * verified.
+ */
+ if (size < 2*sizeof(uint32_t))
+ return;
+
+ /* Check the region signature first */
+ if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2567 Config region 23 has bad signature\n");
+ return;
+ }
+
+ offset += 4;
+
+ /* Check the data structure version */
+ if (buff[offset] != LPFC_REGION23_VERSION) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2568 Config region 23 has bad version\n");
+ return;
+ }
+ offset += 4;
+
+ rec_length = buff[offset + 1];
+
+ /* Read FCoE param record */
+ rec_ptr = lpfc_get_rec_conf23(&buff[offset],
+ size - offset, FCOE_PARAM_TYPE);
+ if (rec_ptr)
+ lpfc_read_fcoe_param(phba, rec_ptr);
+
+ /* Read FCF connection table */
+ rec_ptr = lpfc_get_rec_conf23(&buff[offset],
+ size - offset, FCOE_CONN_TBL_TYPE);
+ if (rec_ptr)
+ lpfc_read_fcf_conn_tbl(phba, rec_ptr);
+
+}