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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2010-02-18 10:07:28 -0800
committerJames Bottomley <James.Bottomley@suse.de>2010-02-19 10:47:05 -0600
commitae97c91eb1f139b19c1e7cbc5c1380dae8ad874e (patch)
treea2a4efad1c00a01fabd6bee230b49177d2581a5c
parentbb2d52b2fd8b19355957e34271f79917f69e4059 (diff)
downloadop-kernel-dev-ae97c91eb1f139b19c1e7cbc5c1380dae8ad874e.zip
op-kernel-dev-ae97c91eb1f139b19c1e7cbc5c1380dae8ad874e.tar.gz
[SCSI] qla2xxx: Add firmware ETS burst support.
Can be used to balance NIC/FCoE traffic distribution. Cc: stable@kernel.org Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
-rw-r--r--drivers/scsi/qla2xxx/qla_gbl.h1
-rw-r--r--drivers/scsi/qla2xxx/qla_init.c11
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c6
3 files changed, 17 insertions, 1 deletions
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 238f353..c41da40 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -78,6 +78,7 @@ extern int ql2xiidmaenable;
extern int ql2xmaxqueues;
extern int ql2xmultique_tag;
extern int ql2xfwloadbin;
+extern int ql2xetsenable;
extern int qla2x00_loop_reset(scsi_qla_host_t *);
extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 96a609b..a67b2ba 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -4892,6 +4892,15 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
}
void
-qla81xx_update_fw_options(scsi_qla_host_t *ha)
+qla81xx_update_fw_options(scsi_qla_host_t *vha)
{
+ struct qla_hw_data *ha = vha->hw;
+
+ if (!ql2xetsenable)
+ return;
+
+ /* Enable ETS Burst. */
+ memset(ha->fw_options, 0, sizeof(ha->fw_options));
+ ha->fw_options[2] |= BIT_9;
+ qla2x00_set_fw_options(vha, ha->fw_options);
}
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 7964a11..a1aef66 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -107,6 +107,12 @@ MODULE_PARM_DESC(ql2xfwloadbin,
" 1 -- load firmware from flash.\n"
" 0 -- use default semantics.\n");
+int ql2xetsenable;
+module_param(ql2xetsenable, int, S_IRUGO|S_IRUSR);
+MODULE_PARM_DESC(ql2xetsenable,
+ "Enables firmware ETS burst."
+ "Default is 0 - skip ETS enablement.");
+
/*
* SCSI host template entry points
*/
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