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[SCSI] lpfc 8.2.6 : Multiple discovery fixes

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Multiple Discovery Fixes:
- Fix race on discovery due to link events coinciding with vport_delete.
- Use NLP_FABRIC state to filter out switch-based pseudo initiators that
   reuse the same WWNs.
- Correct erroneous setting of DID=0 in lpfc_matchdid()
- Correct extra reference count that was in the lookup path for the
  remoteid from an unsolicited ELS.
- Correct double-free bug in els abort path.
- Correct FDMI server discovery logic for switch that return a WWN of 0.
- Fix bugs in ndlp mgmt when a node changes address
- Correct bug that did not delete RSCNs for vports upon link transitions
- Fix "0216 Link event during NS query" error which pops up when vports
  are swapped to different switch ports.
- Add sanity checks on ndlp structures
- Fix devloss log message to dump WWN correctly
- Hold off mgmt commands that were interferring with discovery mailbox cmds
- Remove unnecessary FC_ESTABLISH_LINK logic.
- Correct some race conditions in the worker thread, resulting in devloss:
  - Clear the work_port_events field before handling the work port events
  - Clear the deferred ring event before handling a deferred ring event
  - Hold the hba lock when waking up the work thread
  - Send an acc for the rscn even when we aren't going to handle it
- Fix locking behavior that was not properly protecting the ACTIVE flag,
  thus allowing mailbox command order to shift.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Smart 2008-04-07 10:15:56 -04:00 committed by James Bottomley
parent b35c07d007
commit 58da1ffb2b
11 changed files with 208 additions and 201 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/scsi/lpfc/lpfc.h
View file

@ -268,7 +268,6 @@ struct lpfc_vport {
#define FC_NLP_MORE 0x40 /* More node to process in node tbl */
#define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
#define FC_FABRIC 0x100 /* We are fabric attached */
#define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
#define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
#define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
#define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
@ -433,8 +432,6 @@ struct lpfc_hba {
uint32_t fc_eventTag; /* event tag for link attention */
struct timer_list fc_estabtmo; /* link establishment timer */
/* These fields used to be binfo */
uint32_t fc_pref_DID; /* preferred D_ID */
uint8_t fc_pref_ALPA; /* preferred AL_PA */

6
drivers/scsi/lpfc/lpfc_attr.c
View file

@ -1962,7 +1962,11 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
phba->sysfs_mbox.mbox->vport = vport;
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
/* Don't allow mailbox commands to be sent when blocked
* or when in the middle of discovery
*/
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO ||
vport->fc_flag & FC_NDISC_ACTIVE) {
sysfs_mbox_idle(phba);
spin_unlock_irq(&phba->hbalock);
return -EAGAIN;

46
drivers/scsi/lpfc/lpfc_ct.c
View file

@ -438,7 +438,7 @@ lpfc_ns_rsp(struct lpfc_vport *vport, struct lpfc_dmabuf *mp, uint32_t Size)
(!(vport->ct_flags & FC_CT_RFF_ID)) ||
(!vport->cfg_restrict_login)) {
ndlp = lpfc_setup_disc_node(vport, Did);
if (ndlp) {
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
lpfc_debugfs_disc_trc(vport,
LPFC_DISC_TRC_CT,
"Parse GID_FTrsp: "
@ -543,7 +543,7 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_dmabuf *outp;
struct lpfc_sli_ct_request *CTrsp;
struct lpfc_nodelist *ndlp;
int rc, retry;
int rc;
/* First save ndlp, before we overwrite it */
ndlp = cmdiocb->context_un.ndlp;
@ -563,45 +563,29 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
if (vport->load_flag & FC_UNLOADING)
goto out;
if (lpfc_els_chk_latt(vport) || lpfc_error_lost_link(irsp)) {
if (lpfc_els_chk_latt(vport)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0216 Link event during NS query\n");
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
goto out;
}
if (lpfc_error_lost_link(irsp)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0226 NS query failed due to link event\n");
goto out;
}
if (irsp->ulpStatus) {
/* Check for retry */
if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
retry = 1;
if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
switch (irsp->un.ulpWord[4]) {
case IOERR_NO_RESOURCES:
/* We don't increment the retry
* count for this case.
*/
break;
case IOERR_LINK_DOWN:
case IOERR_SLI_ABORTED:
case IOERR_SLI_DOWN:
retry = 0;
break;
default:
vport->fc_ns_retry++;
}
}
else
if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
irsp->un.ulpWord[4] != IOERR_NO_RESOURCES)
vport->fc_ns_retry++;
if (retry) {
/* CT command is being retried */
rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
/* CT command is being retried */
rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
vport->fc_ns_retry, 0);
if (rc == 0) {
/* success */
goto out;
}
}
if (rc == 0)
goto out;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
@ -780,7 +764,7 @@ lpfc_cmpl_ct_cmd_gff_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
/* This is a target port, unregistered port, or the GFF_ID failed */
ndlp = lpfc_setup_disc_node(vport, did);
if (ndlp) {
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0242 Process x%x GFF "
"NameServer Rsp Data: x%x x%x x%x\n",

2
drivers/scsi/lpfc/lpfc_debugfs.c
View file

@ -503,6 +503,8 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
ndlp->nlp_sid);
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
len += snprintf(buf+len, size-len, "usgmap:%x ",
ndlp->nlp_usg_map);
len += snprintf(buf+len, size-len, "refcnt:%x",
atomic_read(&ndlp->kref.refcount));
len += snprintf(buf+len, size-len, "\n");

85
drivers/scsi/lpfc/lpfc_els.c
View file

@ -719,9 +719,9 @@ lpfc_els_abort_flogi(struct lpfc_hba *phba)
if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR &&
icmd->un.elsreq64.bdl.ulpIoTag32) {
ndlp = (struct lpfc_nodelist *)(iocb->context1);
if (ndlp && (ndlp->nlp_DID == Fabric_DID)) {
if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
(ndlp->nlp_DID == Fabric_DID))
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
}
}
}
spin_unlock_irq(&phba->hbalock);
@ -829,7 +829,7 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
struct fc_rport *rport;
struct serv_parm *sp;
uint8_t name[sizeof(struct lpfc_name)];
uint32_t rc;
uint32_t rc, keepDID = 0;
/* Fabric nodes can have the same WWPN so we don't bother searching
* by WWPN. Just return the ndlp that was given to us.
@ -858,11 +858,17 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
return ndlp;
lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
} else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
rc = memcmp(&ndlp->nlp_portname, name,
sizeof(struct lpfc_name));
if (!rc)
return ndlp;
new_ndlp = lpfc_enable_node(vport, new_ndlp,
NLP_STE_UNUSED_NODE);
if (!new_ndlp)
return ndlp;
}
keepDID = new_ndlp->nlp_DID;
} else
keepDID = new_ndlp->nlp_DID;
lpfc_unreg_rpi(vport, new_ndlp);
new_ndlp->nlp_DID = ndlp->nlp_DID;
@ -893,12 +899,24 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
}
new_ndlp->nlp_type = ndlp->nlp_type;
}
/* We shall actually free the ndlp with both nlp_DID and
* nlp_portname fields equals 0 to avoid any ndlp on the
* nodelist never to be used.
*/
if (ndlp->nlp_DID == 0) {
spin_lock_irq(&phba->ndlp_lock);
NLP_SET_FREE_REQ(ndlp);
spin_unlock_irq(&phba->ndlp_lock);
}
/* Two ndlps cannot have the same did on the nodelist */
ndlp->nlp_DID = keepDID;
lpfc_drop_node(vport, ndlp);
}
else {
lpfc_unreg_rpi(vport, ndlp);
ndlp->nlp_DID = 0; /* Two ndlps cannot have the same did */
/* Two ndlps cannot have the same did */
ndlp->nlp_DID = keepDID;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
}
return new_ndlp;
@ -2091,7 +2109,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
}
phba->fc_stat.elsXmitRetry++;
if (ndlp && delay) {
if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
phba->fc_stat.elsDelayRetry++;
ndlp->nlp_retry = cmdiocb->retry;
@ -2121,7 +2139,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_PLOGI:
if (ndlp) {
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_PLOGI_ISSUE);
@ -2302,7 +2320,7 @@ lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
if (ndlp) {
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
lpfc_nlp_put(ndlp);
/* This is the end of the default RPI cleanup logic for this
* ndlp. If no other discovery threads are using this ndlp.
@ -2335,7 +2353,8 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
* function can have cmdiocb->contest1 (ndlp) field set to NULL.
*/
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
if (ndlp && (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
(*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
/* A LS_RJT associated with Default RPI cleanup has its own
* seperate code path.
*/
@ -2344,7 +2363,7 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
}
/* Check to see if link went down during discovery */
if (!ndlp || lpfc_els_chk_latt(vport)) {
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
if (mbox) {
mp = (struct lpfc_dmabuf *) mbox->context1;
if (mp) {
@ -2353,7 +2372,8 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
}
mempool_free(mbox, phba->mbox_mem_pool);
}
if (ndlp && (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
if (lpfc_nlp_not_used(ndlp)) {
ndlp = NULL;
/* Indicate the node has already released,
@ -2443,7 +2463,7 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
mempool_free(mbox, phba->mbox_mem_pool);
}
out:
if (ndlp) {
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
spin_unlock_irq(shost->host_lock);
@ -3139,6 +3159,8 @@ lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
/* Another thread is walking fc_rscn_id_list on this vport */
spin_unlock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_DISCOVERY;
/* Send back ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
return 0;
}
/* Indicate we are walking fc_rscn_id_list on this vport */
@ -3928,7 +3950,7 @@ lpfc_els_timeout_handler(struct lpfc_vport *vport)
else {
struct lpfc_nodelist *ndlp;
ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
if (ndlp)
if (ndlp && NLP_CHK_NODE_ACT(ndlp))
remote_ID = ndlp->nlp_DID;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
@ -4097,21 +4119,22 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
newnode = 1;
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
ndlp->nlp_type |= NLP_FABRIC;
} else {
if (!NLP_CHK_NODE_ACT(ndlp)) {
ndlp = lpfc_enable_node(vport, ndlp,
NLP_STE_UNUSED_NODE);
if (!ndlp)
goto dropit;
}
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
/* This is simular to the new node path */
ndlp = lpfc_nlp_get(ndlp);
if (!ndlp)
goto dropit;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
newnode = 1;
}
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
ndlp = lpfc_enable_node(vport, ndlp,
NLP_STE_UNUSED_NODE);
if (!ndlp)
goto dropit;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
newnode = 1;
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
ndlp->nlp_type |= NLP_FABRIC;
} else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
/* This is similar to the new node path */
ndlp = lpfc_nlp_get(ndlp);
if (!ndlp)
goto dropit;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
newnode = 1;
}
phba->fc_stat.elsRcvFrame++;
@ -4451,7 +4474,6 @@ lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
return;
}
lpfc_nlp_init(vport, ndlp, NameServer_DID);
ndlp->nlp_type |= NLP_FABRIC;
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
if (!ndlp) {
@ -4465,6 +4487,7 @@ lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
return;
}
}
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
@ -4481,8 +4504,8 @@ lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
if (ndlp_fdmi) {
lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID);
ndlp_fdmi->nlp_type |= NLP_FABRIC;
ndlp_fdmi->nlp_state =
NLP_STE_PLOGI_ISSUE;
lpfc_nlp_set_state(vport, ndlp_fdmi,
NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID,
0);
}

41
drivers/scsi/lpfc/lpfc_hbadisc.c
View file

@ -69,7 +69,7 @@ lpfc_terminate_rport_io(struct fc_rport *rport)
rdata = rport->dd_data;
ndlp = rdata->pnode;
if (!ndlp) {
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
printk(KERN_ERR "Cannot find remote node"
" to terminate I/O Data x%x\n",
@ -114,7 +114,7 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
rdata = rport->dd_data;
ndlp = rdata->pnode;
if (!ndlp)
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
return;
vport = ndlp->vport;
@ -243,8 +243,8 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
if (warn_on) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0203 Devloss timeout on "
"WWPN %x:%x:%x:%x:%x:%x:%x:%x "
"NPort x%x Data: x%x x%x x%x\n",
"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
"NPort x%06x Data: x%x x%x x%x\n",
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID, ndlp->nlp_flag,
@ -252,8 +252,8 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0204 Devloss timeout on "
"WWPN %x:%x:%x:%x:%x:%x:%x:%x "
"NPort x%x Data: x%x x%x x%x\n",
"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
"NPort x%06x Data: x%x x%x x%x\n",
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID, ndlp->nlp_flag,
@ -399,7 +399,10 @@ lpfc_work_done(struct lpfc_hba *phba)
vport = vports[i];
if (vport == NULL)
break;
spin_lock_irq(&vport->work_port_lock);
work_port_events = vport->work_port_events;
vport->work_port_events &= ~work_port_events;
spin_unlock_irq(&vport->work_port_lock);
if (work_port_events & WORKER_DISC_TMO)
lpfc_disc_timeout_handler(vport);
if (work_port_events & WORKER_ELS_TMO)
@ -416,9 +419,6 @@ lpfc_work_done(struct lpfc_hba *phba)
lpfc_ramp_down_queue_handler(phba);
if (work_port_events & WORKER_RAMP_UP_QUEUE)
lpfc_ramp_up_queue_handler(phba);
spin_lock_irq(&vport->work_port_lock);
vport->work_port_events &= ~work_port_events;
spin_unlock_irq(&vport->work_port_lock);
}
lpfc_destroy_vport_work_array(phba, vports);
@ -430,10 +430,10 @@ lpfc_work_done(struct lpfc_hba *phba)
if (pring->flag & LPFC_STOP_IOCB_EVENT) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
} else {
pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
lpfc_sli_handle_slow_ring_event(phba, pring,
(status &
HA_RXMASK));
pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
}
/*
* Turn on Ring interrupts
@ -519,7 +519,9 @@ lpfc_do_work(void *p)
schedule();
}
}
spin_lock_irq(&phba->hbalock);
phba->work_wait = NULL;
spin_unlock_irq(&phba->hbalock);
return 0;
}
@ -809,11 +811,9 @@ out:
mempool_free(pmb, phba->mbox_mem_pool);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_ESTABLISH_LINK);
vport->fc_flag &= ~FC_ABORT_DISCOVERY;
spin_unlock_irq(shost->host_lock);
del_timer_sync(&phba->fc_estabtmo);
lpfc_can_disctmo(vport);
/* turn on Link Attention interrupts */
@ -1340,10 +1340,14 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
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 if (phba->sli3_options &
LPFC_SLI3_NPIV_ENABLED) {
else {
lpfc_vport_set_state(vports[i],
FC_VPORT_NO_FABRIC_SUPP);
lpfc_printf_vlog(vport, KERN_ERR,
@ -2190,10 +2194,6 @@ lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
if (did == Bcast_DID)
return 0;
if (ndlp->nlp_DID == 0) {
return 0;
}
/* First check for Direct match */
if (ndlp->nlp_DID == did)
return 1;
@ -2301,7 +2301,8 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
return ndlp;
}
if (vport->fc_flag & FC_RSCN_MODE) {
if ((vport->fc_flag & FC_RSCN_MODE) &&
!(vport->fc_flag & FC_NDISC_ACTIVE)) {
if (lpfc_rscn_payload_check(vport, did)) {
/* If we've already recieved a PLOGI from this NPort
* we don't need to try to discover it again.

64
drivers/scsi/lpfc/lpfc_init.c
View file

@ -559,8 +559,10 @@ lpfc_hb_timeout(unsigned long ptr)
phba->pport->work_port_events |= WORKER_HB_TMO;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
spin_lock_irqsave(&phba->hbalock, iflag);
if (phba->work_wait)
wake_up(phba->work_wait);
spin_unlock_irqrestore(&phba->hbalock, iflag);
return;
}
@ -714,12 +716,10 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
struct lpfc_vport *vport = phba->pport;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
struct lpfc_vport **vports;
uint32_t event_data;
unsigned long temperature;
struct temp_event temp_event_data;
struct Scsi_Host *shost;
int i;
/* If the pci channel is offline, ignore possible errors,
* since we cannot communicate with the pci card anyway. */
@ -737,17 +737,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
"Data: x%x x%x x%x\n",
phba->work_hs,
phba->work_status[0], phba->work_status[1]);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for(i = 0;
i <= phba->max_vpi && vports[i] != NULL;
i++){
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
vports[i]->fc_flag |= FC_ESTABLISH_LINK;
spin_unlock_irq(shost->host_lock);
}
lpfc_destroy_vport_work_array(phba, vports);
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
spin_unlock_irq(&phba->hbalock);
@ -761,7 +751,6 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
pring = &psli->ring[psli->fcp_ring];
lpfc_sli_abort_iocb_ring(phba, pring);
/*
* There was a firmware error. Take the hba offline and then
* attempt to restart it.
@ -770,7 +759,6 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
if (lpfc_online(phba) == 0) { /* Initialize the HBA */
mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
lpfc_unblock_mgmt_io(phba);
return;
}
@ -1454,6 +1442,13 @@ lpfc_cleanup(struct lpfc_vport *vport)
NLP_SET_FREE_REQ(ndlp);
spin_unlock_irq(&phba->ndlp_lock);
if (vport->port_type != LPFC_PHYSICAL_PORT &&
ndlp->nlp_DID == Fabric_DID) {
/* Just free up ndlp with Fabric_DID for vports */
lpfc_nlp_put(ndlp);
continue;
}
if (ndlp->nlp_type & NLP_FABRIC)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RECOVERY);
@ -1491,31 +1486,6 @@ lpfc_cleanup(struct lpfc_vport *vport)
return;
}
static void
lpfc_establish_link_tmo(unsigned long ptr)
{
struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
struct lpfc_vport **vports;
unsigned long iflag;
int i;
/* Re-establishing Link, timer expired */
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1300 Re-establishing Link, timer expired "
"Data: x%x x%x\n",
phba->pport->fc_flag, phba->pport->port_state);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
struct Scsi_Host *shost;
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irqsave(shost->host_lock, iflag);
vports[i]->fc_flag &= ~FC_ESTABLISH_LINK;
spin_unlock_irqrestore(shost->host_lock, iflag);
}
lpfc_destroy_vport_work_array(phba, vports);
}
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
{
@ -1529,7 +1499,6 @@ static void
lpfc_stop_phba_timers(struct lpfc_hba *phba)
{
del_timer_sync(&phba->fcp_poll_timer);
del_timer_sync(&phba->fc_estabtmo);
lpfc_stop_vport_timers(phba->pport);
del_timer_sync(&phba->sli.mbox_tmo);
del_timer_sync(&phba->fabric_block_timer);
@ -2005,10 +1974,6 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
phba->max_vpi = LPFC_MAX_VPI;
/* Initialize timers used by driver */
init_timer(&phba->fc_estabtmo);
phba->fc_estabtmo.function = lpfc_establish_link_tmo;
phba->fc_estabtmo.data = (unsigned long)phba;
init_timer(&phba->hb_tmofunc);
phba->hb_tmofunc.function = lpfc_hb_timeout;
phba->hb_tmofunc.data = (unsigned long)phba;
@ -2416,11 +2381,6 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
pci_set_master(pdev);
/* Re-establishing Link */
spin_lock_irq(shost->host_lock);
phba->pport->fc_flag |= FC_ESTABLISH_LINK;
spin_unlock_irq(shost->host_lock);
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
spin_unlock_irq(&phba->hbalock);
@ -2445,9 +2405,7 @@ static void lpfc_io_resume(struct pci_dev *pdev)
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
if (lpfc_online(phba) == 0) {
mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
}
lpfc_online(phba);
}
static struct pci_device_id lpfc_id_table[] = {

40
drivers/scsi/lpfc/lpfc_nportdisc.c
View file

@ -451,7 +451,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
spin_unlock_irq(shost->host_lock);
if ((ndlp->nlp_flag & NLP_ADISC_SND) &&
(vport->num_disc_nodes)) {
(vport->num_disc_nodes)) {
/* Check to see if there are more
* ADISCs to be sent
*/
@ -469,20 +469,23 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
lpfc_end_rscn(vport);
}
}
else if (vport->num_disc_nodes) {
/* Check to see if there are more
* PLOGIs to be sent
*/
lpfc_more_plogi(vport);
if (vport->num_disc_nodes == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
lpfc_end_rscn(vport);
}
}
}
} else if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) &&
(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
(vport->num_disc_nodes)) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
/* Check to see if there are more
* PLOGIs to be sent
*/
lpfc_more_plogi(vport);
if (vport->num_disc_nodes == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
lpfc_end_rscn(vport);
}
}
@ -869,8 +872,11 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
lp = (uint32_t *) prsp->virt;
sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
if (wwn_to_u64(sp->portName.u.wwn) == 0 ||
wwn_to_u64(sp->nodeName.u.wwn) == 0) {
/* Some switches have FDMI servers returning 0 for WWN */
if ((ndlp->nlp_DID != FDMI_DID) &&
(wwn_to_u64(sp->portName.u.wwn) == 0 ||
wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
"0142 PLOGI RSP: Invalid WWN.\n");
goto out;

26
drivers/scsi/lpfc/lpfc_scsi.c
View file

@ -578,14 +578,14 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
lpfc_cmd->result == IOERR_NO_RESOURCES ||
lpfc_cmd->result == RJT_LOGIN_REQUIRED) {
cmd->result = ScsiResult(DID_REQUEUE, 0);
break;
} /* else: fall through */
break;
} /* else: fall through */
default:
cmd->result = ScsiResult(DID_ERROR, 0);
break;
}
if ((pnode == NULL )
if (!pnode || !NLP_CHK_NODE_ACT(pnode)
|| (pnode->nlp_state != NLP_STE_MAPPED_NODE))
cmd->result = ScsiResult(DID_BUS_BUSY, SAM_STAT_BUSY);
} else {
@ -626,7 +626,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
if (!result)
lpfc_rampup_queue_depth(vport, sdev);
if (!result && pnode != NULL &&
if (!result && pnode && NLP_CHK_NODE_ACT(pnode) &&
((jiffies - pnode->last_ramp_up_time) >
LPFC_Q_RAMP_UP_INTERVAL * HZ) &&
((jiffies - pnode->last_q_full_time) >
@ -654,7 +654,8 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
* Check for queue full. If the lun is reporting queue full, then
* back off the lun queue depth to prevent target overloads.
*/
if (result == SAM_STAT_TASK_SET_FULL && pnode != NULL) {
if (result == SAM_STAT_TASK_SET_FULL && pnode &&
NLP_CHK_NODE_ACT(pnode)) {
pnode->last_q_full_time = jiffies;
shost_for_each_device(tmp_sdev, sdev->host) {
@ -704,6 +705,9 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
int datadir = scsi_cmnd->sc_data_direction;
char tag[2];
if (!pnode || !NLP_CHK_NODE_ACT(pnode))
return;
lpfc_cmd->fcp_rsp->rspSnsLen = 0;
/* clear task management bits */
lpfc_cmd->fcp_cmnd->fcpCntl2 = 0;
@ -785,9 +789,9 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport,
struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
struct lpfc_nodelist *ndlp = rdata->pnode;
if ((ndlp == NULL) || (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) ||
ndlp->nlp_state != NLP_STE_MAPPED_NODE)
return 0;
}
piocbq = &(lpfc_cmd->cur_iocbq);
piocbq->vport = vport;
@ -842,7 +846,7 @@ lpfc_scsi_tgt_reset(struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_vport *vport,
struct lpfc_iocbq *iocbqrsp;
int ret;
if (!rdata->pnode)
if (!rdata->pnode || !NLP_CHK_NODE_ACT(rdata->pnode))
return FAILED;
lpfc_cmd->rdata = rdata;
@ -959,7 +963,7 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
* Catch race where our node has transitioned, but the
* transport is still transitioning.
*/
if (!ndlp) {
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
cmnd->result = ScsiResult(DID_BUS_BUSY, 0);
goto out_fail_command;
}
@ -1146,7 +1150,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
* target is rediscovered or devloss timeout expires.
*/
while (1) {
if (!pnode)
if (!pnode || !NLP_CHK_NODE_ACT(pnode))
goto out;
if (pnode->nlp_state != NLP_STE_MAPPED_NODE) {
@ -1162,7 +1166,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
goto out;
}
pnode = rdata->pnode;
if (!pnode)
if (!pnode || !NLP_CHK_NODE_ACT(pnode))
goto out;
}
if (pnode->nlp_state == NLP_STE_MAPPED_NODE)

93
drivers/scsi/lpfc/lpfc_sli.c
View file

@ -2648,7 +2648,6 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
spin_unlock_irq(&phba->pport->work_port_lock);
spin_lock_irq(&phba->hbalock);
phba->link_state = LPFC_LINK_UNKNOWN;
phba->pport->fc_flag |= FC_ESTABLISH_LINK;
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
spin_unlock_irq(&phba->hbalock);
@ -2669,8 +2668,7 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
lpfc_offline_prep(phba);
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
if (lpfc_online(phba) == 0) /* Initialize the HBA */
mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
lpfc_online(phba);
lpfc_unblock_mgmt_io(phba);
return;
}
@ -2687,28 +2685,41 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
unsigned long drvr_flag = 0;
volatile uint32_t word0, ldata;
void __iomem *to_slim;
int processing_queue = 0;
spin_lock_irqsave(&phba->hbalock, drvr_flag);
if (!pmbox) {
/* processing mbox queue from intr_handler */
processing_queue = 1;
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
pmbox = lpfc_mbox_get(phba);
if (!pmbox) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
return MBX_SUCCESS;
}
}
if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
if(!pmbox->vport) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
lpfc_printf_log(phba, KERN_ERR,
LOG_MBOX | LOG_VPORT,
"1806 Mbox x%x failed. No vport\n",
pmbox->mb.mbxCommand);
dump_stack();
return MBX_NOT_FINISHED;
goto out_not_finished;
}
}
/* If the PCI channel is in offline state, do not post mbox. */
if (unlikely(pci_channel_offline(phba->pcidev)))
return MBX_NOT_FINISHED;
if (unlikely(pci_channel_offline(phba->pcidev))) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
goto out_not_finished;
}
spin_lock_irqsave(&phba->hbalock, drvr_flag);
psli = &phba->sli;
mb = &pmbox->mb;
status = MBX_SUCCESS;
@ -2717,14 +2728,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
return MBX_NOT_FINISHED;
goto out_not_finished;
}
if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
!(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
return MBX_NOT_FINISHED;
goto out_not_finished;
}
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
@ -2738,14 +2749,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
return MBX_NOT_FINISHED;
goto out_not_finished;
}
if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
return MBX_NOT_FINISHED;
goto out_not_finished;
}
/* Another mailbox command is still being processed, queue this
@ -2792,7 +2803,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
return MBX_NOT_FINISHED;
goto out_not_finished;
}
/* timeout active mbox command */
mod_timer(&psli->mbox_tmo, (jiffies +
@ -2900,7 +2911,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(&phba->hbalock,
drvr_flag);
return MBX_NOT_FINISHED;
goto out_not_finished;
}
/* Check if we took a mbox interrupt while we were
@ -2967,6 +2978,13 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
return status;
out_not_finished:
if (processing_queue) {
pmbox->mb.mbxStatus = MBX_NOT_FINISHED;
lpfc_mbox_cmpl_put(phba, pmbox);
}
return MBX_NOT_FINISHED;
}
/*
@ -3612,6 +3630,16 @@ lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
abort_iocb, abort_iotag, abort_context,
irsp->ulpStatus, irsp->un.ulpWord[4]);
/*
* If the iocb is not found in Firmware queue the iocb
* might have completed already. Do not free it again.
*/
if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
(irsp->un.ulpWord[4] == IOERR_NO_XRI)) {
spin_unlock_irq(&phba->hbalock);
lpfc_sli_release_iocbq(phba, cmdiocb);
return;
}
/*
* make sure we have the right iocbq before taking it
* off the txcmplq and try to call completion routine.
@ -4237,10 +4265,15 @@ lpfc_intr_handler(int irq, void *dev_id)
pmb->context1 = mp;
pmb->context2 = ndlp;
pmb->vport = vport;
spin_lock(&phba->hbalock);
phba->sli.sli_flag &=
~LPFC_SLI_MBOX_ACTIVE;
spin_unlock(&phba->hbalock);
rc = lpfc_sli_issue_mbox(phba,
pmb,
MBX_NOWAIT);
if (rc != MBX_BUSY)
lpfc_printf_log(phba,
KERN_ERR,
LOG_MBOX | LOG_SLI,
"0306 rc should have"
"been MBX_BUSY");
goto send_current_mbox;
}
}
@ -4253,22 +4286,16 @@ lpfc_intr_handler(int irq, void *dev_id)
}
if ((work_ha_copy & HA_MBATT) &&
(phba->sli.mbox_active == NULL)) {
send_next_mbox:
spin_lock(&phba->hbalock);
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
pmb = lpfc_mbox_get(phba);
spin_unlock(&phba->hbalock);
send_current_mbox:
/* Process next mailbox command if there is one */
if (pmb != NULL) {
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
pmb->mb.mbxStatus = MBX_NOT_FINISHED;
lpfc_mbox_cmpl_put(phba, pmb);
goto send_next_mbox;
}
}
do {
rc = lpfc_sli_issue_mbox(phba, NULL,
MBX_NOWAIT);
} while (rc == MBX_NOT_FINISHED);
if (rc != MBX_SUCCESS)
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
LOG_SLI, "0349 rc should be "
"MBX_SUCCESS");
}
spin_lock(&phba->hbalock);

3
drivers/scsi/lpfc/lpfc_vport.c
View file

@ -538,7 +538,8 @@ lpfc_vport_delete(struct fc_vport *fc_vport)
/* Otherwise, we will perform fabric logo as needed */
if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&
phba->link_state >= LPFC_LINK_UP) {
phba->link_state >= LPFC_LINK_UP &&
phba->fc_topology != TOPOLOGY_LOOP) {
if (vport->cfg_enable_da_id) {
timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
if (!lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0))