diff options
| author | James Smart <James.Smart@Emulex.Com> | 2008-09-07 11:52:04 -0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-10-13 09:28:57 -0400 |
| commit | 977b5a0af6d22a1a0170057c19cde37eeac68acd (patch) | |
| tree | 247128ab00aa554eca5366ff8fb3505930729eaf /drivers/scsi/lpfc/lpfc.h | |
| parent | b522d7d42d7ce843885d4c6740c5bd50876a2971 (diff) | |
[SCSI] lpfc 8.2.8 v2 : Add sysfs control of target queue depth handling
Added new sysfs attribute lpfc_max_scsicmpl_time. Attribute, when enabled,
will control target queue depth based on I/O completion time.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 18153846611..3a500d68306 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -34,6 +34,11 @@ struct lpfc_sli2_slim; #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ #define LPFC_VNAME_LEN 100 /* vport symbolic name length */ +#define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt + queue depth change in millisecs */ +#define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */ +#define LPFC_MIN_TGT_QDEPTH 100 +#define LPFC_MAX_TGT_QDEPTH 0xFFFF /* * Following time intervals are used of adjusting SCSI device @@ -363,6 +368,7 @@ struct lpfc_vport { uint32_t cfg_log_verbose; uint32_t cfg_max_luns; uint32_t cfg_enable_da_id; + uint32_t cfg_max_scsicmpl_time; uint32_t dev_loss_tmo_changed; |