summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/bnx2fc/bnx2fc_io.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2019-10-05 12:53:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-10-05 12:53:27 -0700
commit126195c972a2adba8cae12a65cdee155440a4525 (patch)
tree375106a3d36e171670d6c4b7ed91f5851b57f0ac /drivers/scsi/bnx2fc/bnx2fc_io.c
parent4f11918ab93bc113ec0831ed2ab7b88847d44dd7 (diff)
parent0aabb6b699f72dca96988d3f428e222f932dc889 (diff)
downloadlinux-126195c972a2adba8cae12a65cdee155440a4525.tar.gz
linux-126195c972a2adba8cae12a65cdee155440a4525.tar.bz2
linux-126195c972a2adba8cae12a65cdee155440a4525.zip
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley: "Twelve patches mostly small but obvious fixes or cosmetic but small updates" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qla2xxx: Fix Nport ID display value scsi: qla2xxx: Fix N2N link up fail scsi: qla2xxx: Fix N2N link reset scsi: qla2xxx: Optimize NPIV tear down process scsi: qla2xxx: Fix stale mem access on driver unload scsi: qla2xxx: Fix unbound sleep in fcport delete path. scsi: qla2xxx: Silence fwdump template message scsi: hisi_sas: Make three functions static scsi: megaraid: disable device when probe failed after enabled device scsi: storvsc: setup 1:1 mapping between hardware queue and CPU queue scsi: qedf: Remove always false 'tmp_prio < 0' statement scsi: ufs: skip shutdown if hba is not powered scsi: bnx2fc: Handle scope bits when array returns BUSY or TSF
Diffstat (limited to 'drivers/scsi/bnx2fc/bnx2fc_io.c')
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_io.c29
1 files changed, 24 insertions, 5 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index da00ca5fa5dc..401743e2b429 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -1923,6 +1923,7 @@ void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
struct fcoe_fcp_rsp_payload *fcp_rsp;
struct bnx2fc_rport *tgt = io_req->tgt;
struct scsi_cmnd *sc_cmd;
+ u16 scope = 0, qualifier = 0;
/* scsi_cmd_cmpl is called with tgt lock held */
@@ -1990,12 +1991,30 @@ void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
if (io_req->cdb_status == SAM_STAT_TASK_SET_FULL ||
io_req->cdb_status == SAM_STAT_BUSY) {
- /* Set the jiffies + retry_delay_timer * 100ms
- for the rport/tgt */
- tgt->retry_delay_timestamp = jiffies +
- fcp_rsp->retry_delay_timer * HZ / 10;
+ /* Newer array firmware with BUSY or
+ * TASK_SET_FULL may return a status that needs
+ * the scope bits masked.
+ * Or a huge delay timestamp up to 27 minutes
+ * can result.
+ */
+ if (fcp_rsp->retry_delay_timer) {
+ /* Upper 2 bits */
+ scope = fcp_rsp->retry_delay_timer
+ & 0xC000;
+ /* Lower 14 bits */
+ qualifier = fcp_rsp->retry_delay_timer
+ & 0x3FFF;
+ }
+ if (scope > 0 && qualifier > 0 &&
+ qualifier <= 0x3FEF) {
+ /* Set the jiffies +
+ * retry_delay_timer * 100ms
+ * for the rport/tgt
+ */
+ tgt->retry_delay_timestamp = jiffies +
+ (qualifier * HZ / 10);
+ }
}
-
}
if (io_req->fcp_resid)
scsi_set_resid(sc_cmd, io_req->fcp_resid);