[PATCH/for-next 3/3] iser-target: Add special case for early ISCSI_OP_SCSI_CMD exception handling

From: Nicholas A. Bellinger
Date: Thu Apr 25 2013 - 03:52:42 EST

From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>

During early ISCSI_OP_SCSI_CMD exception handling with non GOOD status, the
TX thread context in isert_response_queue() needs to post IB_WR_SEND via
isert_put_response() when processing ISTATE_SEND_STATUS.

Cc: Or Gerlitz <ogerlitz@xxxxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
drivers/infiniband/ulp/isert/ib_isert.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 1a150ef..41712f0 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1947,6 +1947,13 @@ isert_response_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state)
ret = isert_put_reject(cmd, conn);
+ /*
+ * Special case for sending non GOOD SCSI status from TX thread
+ * context during pre se_cmd excecution failure.
+ */
+ ret = isert_put_response(conn, cmd);
+ break;
pr_err("Unknown response state: 0x%02x\n", state);
ret = -EINVAL;

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