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[SCSI] lpfc 8.3.12: Fix discovery issues

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- Add code to prevent unreg_vpi mailbox command from failing.
- Add code to reset the HBA if unreg_vpi mailbox fails with busy status.
- Remove code that was clearing the nlp_type stored during rport discovery.

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Smart 2010-04-06 15:06:30 -04:00 committed by James Bottomley
parent c749593703
commit 78730cfe06
7 changed files with 105 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/scsi/lpfc/lpfc_crtn.h
View file

@ -65,6 +65,7 @@ void lpfc_mbx_cmpl_read_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_init_vpi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *);
void lpfc_retry_pport_discovery(struct lpfc_hba *);
void lpfc_release_rpi(struct lpfc_hba *, struct lpfc_vport *, uint16_t);
void lpfc_mbx_cmpl_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *, LPFC_MBOXQ_t *);

1
drivers/scsi/lpfc/lpfc_disc.h
View file

@ -38,6 +38,7 @@ enum lpfc_work_type {
LPFC_EVT_ELS_RETRY,
LPFC_EVT_DEV_LOSS,
LPFC_EVT_FASTPATH_MGMT_EVT,
LPFC_EVT_RESET_HBA,
};
/* structure used to queue event to the discovery tasklet */

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

@ -584,6 +584,7 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
spin_unlock_irq(shost->host_lock);
lpfc_unreg_rpi(vport, np);
}
lpfc_cleanup_pending_mbox(vport);
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
lpfc_mbx_unreg_vpi(vport);
spin_lock_irq(shost->host_lock);
@ -6316,6 +6317,7 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
spin_unlock_irq(shost->host_lock);
lpfc_unreg_rpi(vport, np);
}
lpfc_cleanup_pending_mbox(vport);
lpfc_mbx_unreg_vpi(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;

15
drivers/scsi/lpfc/lpfc_hbadisc.c
View file

@ -475,6 +475,10 @@ lpfc_work_list_done(struct lpfc_hba *phba)
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);
@ -2737,11 +2741,18 @@ lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
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;
@ -3233,7 +3244,6 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (new_state == NLP_STE_UNMAPPED_NODE) {
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
ndlp->nlp_type |= NLP_FC_NODE;
}
@ -4991,6 +5001,7 @@ lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
if (ndlp)
lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
lpfc_cleanup_pending_mbox(vports[i]);
lpfc_mbx_unreg_vpi(vports[i]);
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);

20
drivers/scsi/lpfc/lpfc_init.c
View file

@ -3227,12 +3227,26 @@ lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
if (!vport)
return NULL;
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp)
return NULL;
phba = vport->phba;
if (!phba)
return NULL;
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
return 0;
lpfc_nlp_init(vport, ndlp, Fabric_DID);
/* Set the node type */
ndlp->nlp_type |= NLP_FABRIC;
/* Put ndlp onto node list */
lpfc_enqueue_node(vport, ndlp);
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
/* re-setup ndlp without removing from node list */
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
if (!ndlp)
return 0;
}
if (phba->pport->port_state <= LPFC_FLOGI)
return NULL;
/* If virtual link is not yet instantiated ignore CVL */

56
drivers/scsi/lpfc/lpfc_nportdisc.c
View file

@ -637,11 +637,55 @@ lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
lpfc_unreg_rpi(vport, ndlp);
return 0;
}
/**
* lpfc_release_rpi - Release a RPI by issueing unreg_login mailbox cmd.
* @phba : Pointer to lpfc_hba structure.
* @vport: Pointer to lpfc_vport structure.
* @rpi : rpi to be release.
*
* This function will send a unreg_login mailbox command to the firmware
* to release a rpi.
**/
void
lpfc_release_rpi(struct lpfc_hba *phba,
struct lpfc_vport *vport,
uint16_t rpi)
{
LPFC_MBOXQ_t *pmb;
int rc;
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!pmb)
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
"2796 mailbox memory allocation failed \n");
else {
lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
mempool_free(pmb, phba->mbox_mem_pool);
}
}
static uint32_t
lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba;
LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
MAILBOX_t *mb;
uint16_t rpi;
phba = vport->phba;
/* Release the RPI if reglogin completing */
if (!(phba->pport->load_flag & FC_UNLOADING) &&
(evt == NLP_EVT_CMPL_REG_LOGIN) &&
(!pmb->u.mb.mbxStatus)) {
mb = &pmb->u.mb;
rpi = pmb->u.mb.un.varWords[0];
lpfc_release_rpi(phba, vport, rpi);
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0271 Illegal State Transition: node x%x "
"event x%x, state x%x Data: x%x x%x\n",
@ -977,6 +1021,18 @@ static uint32_t
lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
{
struct lpfc_hba *phba;
LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
MAILBOX_t *mb = &pmb->u.mb;
uint16_t rpi;
phba = vport->phba;
/* Release the RPI */
if (!(phba->pport->load_flag & FC_UNLOADING) &&
!mb->mbxStatus) {
rpi = pmb->u.mb.un.varWords[0];
lpfc_release_rpi(phba, vport, rpi);
}
return ndlp->nlp_state;
}

15
drivers/scsi/lpfc/lpfc_sli.c
View file

@ -12661,6 +12661,7 @@ lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mb, *nextmb;
struct lpfc_dmabuf *mp;
struct lpfc_nodelist *ndlp;
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
@ -12677,6 +12678,11 @@ lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
__lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
ndlp = (struct lpfc_nodelist *) mb->context2;
if (ndlp) {
lpfc_nlp_put(ndlp);
mb->context2 = NULL;
}
}
list_del(&mb->list);
mempool_free(mb, phba->mbox_mem_pool);
@ -12686,6 +12692,15 @@ lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
(mb->u.mb.mbxCommand == MBX_REG_VPI))
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
ndlp = (struct lpfc_nodelist *) mb->context2;
if (ndlp) {
lpfc_nlp_put(ndlp);
mb->context2 = NULL;
}
/* Unregister the RPI when mailbox complete */
mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
}
}
spin_unlock_irq(&phba->hbalock);
}