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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
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56
drivers/scsi/lpfc/lpfc_nportdisc.c
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@@ -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;
}