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| author |   Don Brace <brace@beardog.cce.hp.com> | 2009-11-12 12:50:01 -0600 |
|---|---|---|
| committer |   Jens Axboe <jens.axboe@oracle.com> | 2009-11-13 08:45:54 +0100 |
| commit | 5c07a311a80adb0138fc08e8279c60255d88d0b8 (patch) | |
| tree | 1746b4ec4b7ea1f2f02b34d5c0adc86dc8e0d97f /drivers/block/cciss_cmd.h | |
| parent | cciss: Do not automatically rescan on UNIT ATTENTION/LUN DATA CHANGED (diff) | |
| download | linux-dev-5c07a311a80adb0138fc08e8279c60255d88d0b8.tar.xz linux-dev-5c07a311a80adb0138fc08e8279c60255d88d0b8.zip | |
cciss: Add enhanced scatter-gather support.
cciss: Add enhanced scatter-gather support. For controllers which
supported, more than 512 scatter-gather elements per command may
be used, and the max transfer size can be increased to 8192 blocks.
Signed-off-by: Don Brace <brace@beardog.cce.hp.com>
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/block/cciss_cmd.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h index dbaed1ea0da3..b50a9b261b85 100644 --- a/drivers/block/cciss_cmd.h +++ b/drivers/block/cciss_cmd.h @@ -7,7 +7,8 @@ //general boundary defintions #define SENSEINFOBYTES 32//note that this value may vary between host implementations -#define MAXSGENTRIES 31 +#define MAXSGENTRIES 32 +#define CCISS_SG_CHAIN 0x80000000 #define MAXREPLYQS 256 //Command Status value @@ -319,6 +320,10 @@ typedef struct _CfgTable_struct { BYTE ServerName[16]; DWORD HeartBeat; DWORD SCSI_Prefetch; + DWORD MaxSGElements; + DWORD MaxLogicalUnits; + DWORD MaxPhysicalDrives; + DWORD MaxPhysicalDrivesPerLogicalUnit; } CfgTable_struct; #pragma pack() #endif // CCISS_CMD_H |