Target/iser: Fail SCSI WRITE command if device detected integrity error

If during data-transfer a data-integrity error was detected we
must fail the command with CHECK_CONDITION and not execute
the command.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Reported-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index e2d48a9d828a..09bde9fe6b8d 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1736,7 +1736,7 @@ isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
         struct se_cmd *se_cmd = &cmd->se_cmd;
         struct isert_conn *isert_conn = isert_cmd->conn;
         struct isert_device *device = isert_conn->conn_device;
-        int ret;
+        int ret = 0;
 
         if (wr->fr_desc && wr->fr_desc->ind & ISERT_PROTECTED) {
                 ret = isert_check_pi_status(se_cmd,
@@ -1755,7 +1755,11 @@ isert_completion_rdma_read(struct iser_tx_desc *tx_desc,
         cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT;
         spin_unlock_bh(&cmd->istate_lock);
 
-        target_execute_cmd(se_cmd);
+        if (ret)
+                transport_send_check_condition_and_sense(se_cmd,
+                                                         se_cmd->pi_err, 0);
+        else
+                target_execute_cmd(se_cmd);
 }
 
 static void