[SCSI] iscsi_tcp: return a descriptive error value during connection errors

The segment->done functions return a iscsi error value which gives
a lot more info than conn failed, so this patch has us return
that value. I also add a new one for xmit failures.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index f274d248a91f..0c9514de5df7 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -214,6 +214,7 @@ enum iscsi_err {
         ISCSI_ERR_PARAM_NOT_FOUND       = ISCSI_ERR_BASE + 16,
         ISCSI_ERR_NO_SCSI_CMD           = ISCSI_ERR_BASE + 17,
         ISCSI_ERR_INVALID_HOST          = ISCSI_ERR_BASE + 18,
+        ISCSI_ERR_XMIT_FAILED           = ISCSI_ERR_BASE + 19,
 };
 
 /*