renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-19 10:44:14 +08:00
Code

ipr: Don't set NO_ULEN_CHK bit when resource is a vset.

Browse Source 
According to the IPR specification, Inhibit Underlength Checking bit
must be disabled when issuing commands to vsets.  Enabling it in this
case might cause SCSI commands to fail with an Illegal Request, so make
sure we keep this bit cleared when resource is a vset.

Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Gabriel Krisman Bertazi 2015-11-03 16:26:07 -02:00 committed by Martin K. Petersen
parent f41f1d994e
commit 4f92d01a64
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/scsi/ipr.c
View File

@ -6363,15 +6363,19 @@ static int ipr_queuecommand(struct Scsi_Host *shost,
ipr_cmd->scsi_cmd = scsi_cmd;
ipr_cmd->done = ipr_scsi_eh_done;
if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
if (ipr_is_gscsi(res)) {
if (scsi_cmd->underflow == 0)
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
if (ipr_is_gscsi(res) && res->reset_occurred) {
if (res->reset_occurred) {
res->reset_occurred = 0;
ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
}
}
if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
if (scsi_cmd->flags & SCMD_TAGGED)
ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;