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authorJames Smart <james.smart@emulex.com>2010-04-06 23:06:30 +0400
committerJames Bottomley <James.Bottomley@suse.de>2010-04-11 22:45:53 +0400
commit78730cfe0649bce86e64eafda9bdffa38f05d396 (patch)
tree7a0cbdf556602349b81db5962b5aec87bff68d8a /drivers/scsi/lpfc/lpfc_nportdisc.c
parentc74959370369cd870560777b7db7ec940565bb85 (diff)
downloadlinux-78730cfe0649bce86e64eafda9bdffa38f05d396.tar.xz
[SCSI] lpfc 8.3.12: Fix discovery issues
- 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>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index e1086da69061..b90820a699fd 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -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;
}