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| author | Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> | 2015-11-03 16:26:07 -0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2015-11-09 19:31:01 -0500 |
| commit | 4f92d01a642d27716f60cdab0fd3c527fb7cfb0f (patch) | |
| tree | 20ca6db4fb8ef5fc9bb16d82ccba849f2a02fa49 | |
| parent | f41f1d994e0e2e0fab29c6f3f9c77350f1769166 (diff) | |
| download | linux-stable-4f92d01a642d27716f60cdab0fd3c527fb7cfb0f.tar.gz linux-stable-4f92d01a642d27716f60cdab0fd3c527fb7cfb0f.tar.bz2 linux-stable-4f92d01a642d27716f60cdab0fd3c527fb7cfb0f.zip | |
ipr: Don't set NO_ULEN_CHK bit when resource is a vset.
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>
| -rw-r--r-- | drivers/scsi/ipr.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 238efab90bf2..6849b7f18bc2 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -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; |