summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/qla2xxx/qla_os.c
diff options
context:
space:
mode:
authorQuinn Tran <quinn.tran@cavium.com>2017-12-28 21:33:19 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2018-01-04 05:41:05 +0100
commit9ecf0b0dd5b934a89eeaa15723d10beb6c33074c (patch)
tree7d98841e2c507d54796bb9198099438ce212979f /drivers/scsi/qla2xxx/qla_os.c
parentscsi: qla2xxx: Use shadow register for ISP27XX (diff)
downloadlinux-9ecf0b0dd5b934a89eeaa15723d10beb6c33074c.tar.xz
linux-9ecf0b0dd5b934a89eeaa15723d10beb6c33074c.zip
scsi: qla2xxx: Add option for use reserve exch for ELS
Add option to tell FW to reserve 1/2 of emergency exchanges for ELS. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index e1761bd552fe..487e1affacf4 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -277,6 +277,12 @@ MODULE_PARM_DESC(ql2xenablemsix,
" 1 -- enable MSI-X interrupt mechanism.\n"
" 2 -- enable MSI interrupt mechanism.\n");
+int qla2xuseresexchforels;
+module_param(qla2xuseresexchforels, int, 0444);
+MODULE_PARM_DESC(qla2xuseresexchforels,
+ "Reserve 1/2 of emergency exchanges for ELS.\n"
+ " 0 (default): disabled");
+
/*
* SCSI host template entry points
*/