[RFC 22/34] iscsi-target: call Rx thread function

[Varun Prakash]

call Rx thread function if registered
by transport driver, so that transport
drivers can use iscsi-target Rx thread
for Rx processing.

update iSER target driver to use this
interface.

Signed-off-by: Varun Prakash <va...@chelsio.com>
---
 drivers/infiniband/ulp/isert/ib_isert.c | 10 ++++++++++
 drivers/target/iscsi/iscsi_target.c     | 10 ++--------
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c 
b/drivers/infiniband/ulp/isert/ib_isert.c
index f121e61..365aa8c 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -3396,6 +3396,15 @@ static void isert_free_conn(struct iscsi_conn *conn)
        isert_put_conn(isert_conn);
 }
 
+static void isert_rx_pdu(struct iscsi_conn *conn)
+{
+       struct completion comp;
+
+       init_completion(&comp);
+
+       wait_for_completion_interruptible(&comp);
+}
+
 static struct iscsit_transport iser_target_transport = {
        .name                   = "IB/iSER",
        .transport_type         = ISCSI_INFINIBAND,
@@ -3414,6 +3423,7 @@ static struct iscsit_transport iser_target_transport = {
        .iscsit_queue_data_in   = isert_put_datain,
        .iscsit_queue_status    = isert_put_response,
        .iscsit_aborted_task    = isert_aborted_task,
+       .iscsit_rx_pdu          = isert_rx_pdu,
        .iscsit_get_sup_prot_ops = isert_get_sup_prot_ops,
 };
 
diff --git a/drivers/target/iscsi/iscsi_target.c 
b/drivers/target/iscsi/iscsi_target.c
index 3dd7ba2..e2ec56f 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4132,14 +4132,8 @@ int iscsi_target_rx_thread(void *arg)
        if (rc < 0 || iscsi_target_check_conn_state(conn))
                return 0;
 
-       if (conn->conn_transport->transport_type == ISCSI_INFINIBAND) {
-               struct completion comp;
-
-               init_completion(&comp);
-               rc = wait_for_completion_interruptible(&comp);
-               if (rc < 0)
-                       goto transport_err;
-
+       if (conn->conn_transport->iscsit_rx_pdu) {
+               conn->conn_transport->iscsit_rx_pdu(conn);
                goto transport_err;
        }
 
-- 
2.0.2

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