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authorJames Bottomley <JBottomley@Parallels.com>2013-05-07 15:38:18 -0700
committerJames Bottomley <JBottomley@Parallels.com>2013-06-04 11:15:59 -0700
commite73823f7a2c921dcf068d34ea03bd682498d9e42 (patch)
tree8b5b2262352572b3069a671f7578ea6d5ef07162 /drivers/scsi/mvsas
parent9edf7d75ee5f21663a0183d21f702682d0ef132f (diff)
[SCSI] libsas: implement > 16 byte CDB support
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>
Diffstat (limited to 'drivers/scsi/mvsas')
-rw-r--r--drivers/scsi/mvsas/mv_sas.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index c9e244984e30..f14665a6293d 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -686,7 +686,8 @@ static int mvs_task_prep_ssp(struct mvs_info *mvi,
if (ssp_hdr->frame_type != SSP_TASK) {
buf_cmd[9] = fburst | task->ssp_task.task_attr |
(task->ssp_task.task_prio << 3);
- memcpy(buf_cmd + 12, &task->ssp_task.cdb, 16);
+ memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
+ task->ssp_task.cmd->cmd_len);
} else{
buf_cmd[10] = tmf->tmf;
switch (tmf->tmf) {