6.6-stable review patch. If anyone has any objections, please let me know.
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From: Justin Tee justin.tee@broadcom.com
[ Upstream commit aba0fb0ef607a71511d23a07406f11130c1a54c5 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/lpfc/lpfc_els.c | 6 +++--- drivers/scsi/lpfc/lpfc_vmid.c | 1 + 2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 932d47951cf3..18b8325fd419 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -1119,12 +1119,12 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 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 diff --git a/drivers/scsi/lpfc/lpfc_vmid.c b/drivers/scsi/lpfc/lpfc_vmid.c index cf8ba840d0ea..773e02ae20c3 100644 --- a/drivers/scsi/lpfc/lpfc_vmid.c +++ b/drivers/scsi/lpfc/lpfc_vmid.c @@ -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); }