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[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>
This commit is contained in:
Andrew Vasquez 2010-02-18 10:07:28 -08:00 committed by James Bottomley
parent bb2d52b2fd
commit ae97c91eb1
3 changed files with 17 additions and 1 deletions
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1
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -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);

11
drivers/scsi/qla2xxx/qla_init.c
View File

@ -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);
}

6
drivers/scsi/qla2xxx/qla_os.c
View File

@ -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
*/