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scsi: lpfc: Move determination of vmid_flag after VMID reinitialization completes

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If priority tagging is set in the service parameters of a FLOGI cmpl, then
we update the vmid_flag.  In the current logic, if a follow up FLOGI cmpl
updates its service parameters such that priority tagging is no longer set,
then the vmid_flag ends up keeping stale data.

Fix by ensuring we clear the vmid_flag member during lpfc_reinit_vmid, and
check the priority tagging service parameter after reinitialization of the
vmid data structures.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231207224039.35466-4-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Justin Tee 2023-12-07 14:40:38 -08:00 committed by Martin K. Petersen
parent 8dc8eb89f4
commit aba0fb0ef6
2 changed files with 4 additions and 3 deletions
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6
drivers/scsi/lpfc/lpfc_els.c
View File

@ -1130,12 +1130,12 @@ stop_rr_fcf_flogi:
vport->port_state, vport->fc_flag,
sp->cmn.priority_tagging, kref_read(&ndlp->kref));
if (sp->cmn.priority_tagging)
vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA |
LPFC_VMID_TYPE_PRIO);
/* reinitialize the VMID datastructure before returning */
if (lpfc_is_vmid_enabled(phba))
lpfc_reinit_vmid(vport);
if (sp->cmn.priority_tagging)
vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA |
LPFC_VMID_TYPE_PRIO);
/*
* Address a timing race with dev_loss. If dev_loss is active on

1
drivers/scsi/lpfc/lpfc_vmid.c
View File

@ -321,5 +321,6 @@ lpfc_reinit_vmid(struct lpfc_vport *vport)
if (!hash_empty(vport->hash_table))
hash_for_each_safe(vport->hash_table, bucket, tmp, cur, hnode)
hash_del(&cur->hnode);
vport->vmid_flag = 0;
write_unlock(&vport->vmid_lock);
}