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authorTej Parkash <tej.parkash@qlogic.com>2012-09-20 07:35:12 -0400
committerJames Bottomley <JBottomley@Parallels.com>2012-09-24 12:49:00 +0400
commit546fef27c3a798fbcece2705c1eda9e249e22226 (patch)
tree3e10b8a6f7daeff5ecc0fddc8985e5da09ce730f /drivers/scsi/qla4xxx/ql4_os.c
parent48a859d29f3d7a855093819633abcc9c877108ef (diff)
downloadop-kernel-dev-546fef27c3a798fbcece2705c1eda9e249e22226.zip
op-kernel-dev-546fef27c3a798fbcece2705c1eda9e249e22226.tar.gz
[SCSI] qla4xxx: Disable generating pause frames for ISP83XX
In case of FW hung ISP83XX generates continuous pause frames which causes switch to disable port. Added fix to disable generating pause frames in case of FW hung Signed-off-by: Tej Parkash <tej.parkash@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_os.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 3554680..ad2da9c 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -2946,6 +2946,14 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
+ if (is_qla8032(ha) &&
+ !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
+ ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
+ __func__);
+ /* disable pause frame for ISP83xx */
+ qla4_83xx_disable_pause(ha);
+ }
+
iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
@@ -3391,6 +3399,13 @@ static void qla4xxx_do_dpc(struct work_struct *work)
if (is_qla80XX(ha)) {
if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
+ if (is_qla8032(ha)) {
+ ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
+ __func__);
+ /* disable pause frame for ISP83xx */
+ qla4_83xx_disable_pause(ha);
+ }
+
ha->isp_ops->idc_lock(ha);
qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
QLA8XXX_DEV_FAILED);
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