The isert module has only supported sending a NOPIN as a response to a
NOPOUT. In order to be able to use an unsolicited NOPIN to inform the
initiator of max_cmd_sn changes, isert needs to be able to send a NOPIN
as needed.
Signed-off-by: David Jeffery <djeffery@xxxxxxxxxx>
Tested-by: Laurence Oberman <loberman@xxxxxxxxxx>
---
drivers/infiniband/ulp/isert/ib_isert.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 636d590765f9..b8390ad762eb 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1469,6 +1469,7 @@ isert_put_cmd(struct isert_cmd *isert_cmd, bool comp_err)
break;
case ISCSI_OP_REJECT:
case ISCSI_OP_NOOP_OUT:
+ case ISCSI_OP_NOOP_IN:
case ISCSI_OP_TEXT:
hdr = (struct iscsi_text_rsp *)&isert_cmd->tx_desc.iscsi_header;
/* If the continue bit is on, keep the command alive */
@@ -1858,7 +1859,14 @@ isert_put_nopin(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
isert_dbg("conn %p Posting NOPIN Response\n", isert_conn);
- return isert_post_response(isert_conn, isert_cmd);
+ if (nopout_response)
+ return isert_post_response(isert_conn, isert_cmd);
+
+ /* pointer init since didn't go through isert_allocate_cmd */
+ isert_cmd->conn = isert_conn;
+ isert_cmd->iscsi_cmd = cmd;
+
+ return ib_post_send(isert_conn->qp, send_wr, NULL);
}
static int
@@ -2159,6 +2167,7 @@ isert_immediate_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state)
spin_unlock_bh(&conn->cmd_lock);
isert_put_cmd(isert_cmd, true);
break;
+ case ISTATE_SEND_NOPIN_NO_RESPONSE:
case ISTATE_SEND_NOPIN_WANT_RESPONSE:
ret = isert_put_nopin(cmd, conn, false);
break;
--
2.31.1
