diff options
| author | James Smart <james.smart@emulex.com> | 2012-08-03 12:36:42 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-09-14 14:43:46 +0100 |
| commit | 49aa143da98cac07f56096de0d099cb00ccd1582 (patch) | |
| tree | def5e5c8db4554a6f6e7064366a21e4013d30ef0 /drivers/scsi/lpfc/lpfc_attr.c | |
| parent | 4305f183c03fbcf7fd4102de4422862fc76567d2 (diff) | |
| download | linux-49aa143da98cac07f56096de0d099cb00ccd1582.tar.gz linux-49aa143da98cac07f56096de0d099cb00ccd1582.tar.bz2 linux-49aa143da98cac07f56096de0d099cb00ccd1582.zip | |
[SCSI] lpfc 8.3.33: Make I/O to hw queue distribution algorithm a module parameter
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index f7c5531d984c..2ab2b9f2bff5 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -3778,6 +3778,16 @@ static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR, LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); /* +# lpfc_fcp_io_sched: Determine scheduling algrithmn for issuing FCP cmds +# range is [0,1]. Default value is 0. +# For [0], FCP commands are issued to Work Queues ina round robin fashion. +# For [1], FCP commands are issued to a Work Queue associated with the +# current CPU. +*/ +LPFC_ATTR_RW(fcp_io_sched, 0, 0, 1, "Determine scheduling algrithmn for " + "issuing commands [0] - Round Robin, [1] - Current CPU"); + +/* # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing # cr_delay (msec) or cr_count outstanding commands. cr_delay can take # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay @@ -4001,6 +4011,7 @@ struct device_attribute *lpfc_hba_attrs[] = { &dev_attr_lpfc_topology, &dev_attr_lpfc_scan_down, &dev_attr_lpfc_link_speed, + &dev_attr_lpfc_fcp_io_sched, &dev_attr_lpfc_cr_delay, &dev_attr_lpfc_cr_count, &dev_attr_lpfc_multi_ring_support, @@ -4990,6 +5001,7 @@ struct fc_function_template lpfc_vport_transport_functions = { void lpfc_get_cfgparam(struct lpfc_hba *phba) { + lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); lpfc_cr_delay_init(phba, lpfc_cr_delay); lpfc_cr_count_init(phba, lpfc_cr_count); lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); |