xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[SCSI] libsas: implement > 16 byte CDB support

Browse Source 
Remove the arbitrary expectation in libsas that all SCSI commands are 16 bytes
or less.  Instead do all copies via cmd->cmd_len (and use a pointer to this in
the libsas task instead of a copy).  Note that this still doesn't enable > 16
byte CDB support in the underlying drivers because their internal format has
to be fixed and the wire format of > 16 byte CDBs according to the SAS spec is
different.  the libsas drivers (isci, aic94xx, mvsas and pm8xxx are all
updated for this change.

Cc: Lukasz Dorau <lukasz.dorau@intel.com>
Cc: Maciej Patelczyk <maciej.patelczyk@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Jack Wang <xjtuwjp@gmail.com>
Cc: Lindar Liu <lindar_liu@usish.com>
Cc: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Bottomley
2013-05-07 15:38:18 -07:00
parent 9edf7d75ee
commit e73823f7a2
7 changed files with 21 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/scsi/libsas.h
View File

@@ -608,7 +608,7 @@ struct sas_ssp_task {
u8 enable_first_burst:1;
enum task_attribute task_attr;
u8 task_prio;
u8 cdb[16];
struct scsi_cmnd *cmd;
};
struct sas_task {