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@xxxxxxxxxxxxxxxxxx>
---
drivers/scsi/ipr.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index a9aa389..db0c2cf 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -6382,9 +6382,13 @@ 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
--
2.1.0
--
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