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authorGabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>2015-08-19 17:47:05 +0300
committerJames Bottomley <JBottomley@Odin.com>2015-08-28 23:14:53 +0300
commit3cb4fc1fcae9647c594bc2b8fda1b818f4fb757f (patch)
treeab6d87b73a17324e00486d3a37568164aff27de3 /drivers/scsi
parentc75683ca13d12a700531864bcd3118e94bc9eaa0 (diff)
downloadlinux-3cb4fc1fcae9647c594bc2b8fda1b818f4fb757f.tar.xz
ipr: Inhibit underlength data check for AFDASD in raw mode.
Disable underlength error verification based on count of bytes actually transferred for AF DASD devices when SIS pipe mode is enabled. This avoids unexpected underlength errors when issuing some commands in raw mode. Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/ipr.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 341191952155..ba16dd79f451 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -6383,9 +6383,13 @@ static int ipr_queuecommand(struct Scsi_Host *shost,
(!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
}
- if (res->raw_mode && ipr_is_af_dasd_device(res))
+ if (res->raw_mode && ipr_is_af_dasd_device(res)) {
ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
+ if (scsi_cmd->underflow == 0)
+ ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
+ }
+
if (ioa_cfg->sis64)
rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
else