summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJustin Tee <justin.tee@broadcom.com>2024-09-13 02:24:40 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2024-09-13 04:21:18 +0300
commit93bcc5f3984bf4f51da1529700aec351872dbfff (patch)
tree3d433fcc1d25234cb5c5d19113678fa875a7ba52
parent5b247f03779d3601dcb080446bd7d680149a2aee (diff)
downloadlinux-93bcc5f3984bf4f51da1529700aec351872dbfff.tar.xz
scsi: lpfc: Add ELS_RSP cmd to the list of WQEs to flush in lpfc_els_flush_cmd()
During HBA stress testing, a spam of received PLOGIs exposes a resource recovery bug causing leakage of lpfc_sqlq entries from the global phba->sli4_hba.lpfc_els_sgl_list. The issue is in lpfc_els_flush_cmd(), where the driver attempts to recover outstanding ELS sgls when walking the txcmplq. Only CMD_ELS_REQUEST64_CRs and CMD_GEN_REQUEST64_CRs are added to the abort and cancel lists. A check for CMD_XMIT_ELS_RSP64_WQE is missing in order to recover LS_ACC usages of the phba->sli4_hba.lpfc_els_sgl_list too. Fix by adding CMD_XMIT_ELS_RSP64_WQE as part of the txcmplq walk when adding WQEs to the abort and cancel list in lpfc_els_flush_cmd(). Also, update naming convention from CRs to WQEs. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240912232447.45607-2-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index de0ec945d2f1..7219b1ada1ea 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -9658,11 +9658,12 @@ lpfc_els_flush_cmd(struct lpfc_vport *vport)
if (piocb->cmd_flag & LPFC_DRIVER_ABORTED && !mbx_tmo_err)
continue;
- /* On the ELS ring we can have ELS_REQUESTs or
- * GEN_REQUESTs waiting for a response.
+ /* On the ELS ring we can have ELS_REQUESTs, ELS_RSPs,
+ * or GEN_REQUESTs waiting for a CQE response.
*/
ulp_command = get_job_cmnd(phba, piocb);
- if (ulp_command == CMD_ELS_REQUEST64_CR) {
+ if (ulp_command == CMD_ELS_REQUEST64_WQE ||
+ ulp_command == CMD_XMIT_ELS_RSP64_WQE) {
list_add_tail(&piocb->dlist, &abort_list);
/* If the link is down when flushing ELS commands