diff options
| author | Sumit.Saxena@avagotech.com <Sumit.Saxena@avagotech.com> | 2015-01-05 09:36:23 -0500 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2015-01-09 09:44:36 -0500 |
| commit | ae09a6c1fd421887fa4885adb7c55ccc8074c441 (patch) | |
| tree | 1c7acea04f52f51992d24a29d5b758c0317d9966 /drivers/scsi/megaraid/megaraid_sas.h | |
| parent | c8dd61eff2780c481fcf919c1572e16e397c714e (diff) | |
megaraid_sas: reserve commands for IOCTLs and internal DCMDs
1) For fusion adapters, limit reserved frames for non SCSI commands to 8
(3 for parallel IOCTLs + 5 for driver's internal DCMDs).
Earlier reserved commands for non SCSI IO frames was set to 32, so with
this implementation, increased per controller "can_queue".
Behavior of MFI controllers will remain unchanged.
2) Optimize the code related to per controller's 'can_queue' setting.
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Chaitra Basappa <chaitra.basappa@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas.h')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index b8b378dec7ec..793b2b3552ff 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h | |||
| @@ -1082,6 +1082,8 @@ enum MR_SCSI_CMD_TYPE { | |||
| 1082 | */ | 1082 | */ |
| 1083 | #define MEGASAS_INT_CMDS 32 | 1083 | #define MEGASAS_INT_CMDS 32 |
| 1084 | #define MEGASAS_SKINNY_INT_CMDS 5 | 1084 | #define MEGASAS_SKINNY_INT_CMDS 5 |
| 1085 | #define MEGASAS_FUSION_INTERNAL_CMDS 5 | ||
| 1086 | #define MEGASAS_FUSION_IOCTL_CMDS 3 | ||
| 1085 | 1087 | ||
| 1086 | #define MEGASAS_MAX_MSIX_QUEUES 128 | 1088 | #define MEGASAS_MAX_MSIX_QUEUES 128 |
| 1087 | /* | 1089 | /* |
| @@ -1687,9 +1689,8 @@ struct megasas_instance { | |||
| 1687 | 1689 | ||
| 1688 | u16 max_num_sge; | 1690 | u16 max_num_sge; |
| 1689 | u16 max_fw_cmds; | 1691 | u16 max_fw_cmds; |
| 1690 | /* For Fusion its num IOCTL cmds, for others MFI based its | ||
| 1691 | max_fw_cmds */ | ||
| 1692 | u16 max_mfi_cmds; | 1692 | u16 max_mfi_cmds; |
| 1693 | u16 max_scsi_cmds; | ||
| 1693 | u32 max_sectors_per_req; | 1694 | u32 max_sectors_per_req; |
| 1694 | struct megasas_aen_event *ev; | 1695 | struct megasas_aen_event *ev; |
| 1695 | 1696 | ||
| @@ -1765,7 +1766,7 @@ struct megasas_instance { | |||
| 1765 | u8 requestorId; | 1766 | u8 requestorId; |
| 1766 | char PlasmaFW111; | 1767 | char PlasmaFW111; |
| 1767 | char mpio; | 1768 | char mpio; |
| 1768 | int throttlequeuedepth; | 1769 | u16 throttlequeuedepth; |
| 1769 | u8 mask_interrupts; | 1770 | u8 mask_interrupts; |
| 1770 | u8 is_imr; | 1771 | u8 is_imr; |
| 1771 | }; | 1772 | }; |