RDMA/rtrs: Add error messages for failed operations.

It could help debugging in case of error happens.

Link: https://lore.kernel.org/r/20210712060750.16494-2-jinpu.wang@ionos.com
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Aleksei Marov <aleksei.marov@ionos.com>
Reviewed-by: Gioh Kim <gi-oh.kim@ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/ulp/rtrs/rtrs.c b/drivers/infiniband/ulp/rtrs/rtrs.c
index 61919eb..870b21f 100644 (file)
--- a/drivers/infiniband/ulp/rtrs/rtrs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs.c
@@ -316,6 +316,7 @@ void rtrs_send_hb_ack(struct rtrs_sess *sess)
        err = rtrs_post_rdma_write_imm_empty(usr_con, sess->hb_cqe, imm,
                                             0, NULL);
        if (err) {
+               rtrs_err(sess, "send HB ACK failed, errno: %d\n", err);
                sess->hb_err_handler(usr_con);
                return;
        }
@@ -333,6 +334,7 @@ static void hb_work(struct work_struct *work)
        usr_con = sess->con[0];
 
        if (sess->hb_missed_cnt > sess->hb_missed_max) {
+               rtrs_err(sess, "HB missed max reached.\n");
                sess->hb_err_handler(usr_con);
                return;
        }
@@ -348,6 +350,7 @@ static void hb_work(struct work_struct *work)
        err = rtrs_post_rdma_write_imm_empty(usr_con, sess->hb_cqe, imm,
                                             0, NULL);
        if (err) {
+               rtrs_err(sess, "HB send failed, errno: %d\n", err);
                sess->hb_err_handler(usr_con);
                return;
        }