RDMA/rtrs-srv: Report temporary sessname for error message

Before receiving the session name, the error message cannot include any
information about which connection generates the error.

This patch stores the addresses of source and target in the sessname field
to show which generates the error. That field will be over-written
when receiving the session name from client.

Link: https://lore.kernel.org/r/20210325153308.1214057-17-gi-oh.kim@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
index 9fe4ab1d66ab980619d33439b61be9d115a15adf..739b9b112a78280f0a34a9f4080443532fb2806a 100644 (file)
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
@@ -1683,6 +1683,9 @@ static struct rtrs_srv_sess *__alloc_sess(struct rtrs_srv *srv,
 {
        struct rtrs_srv_sess *sess;
        int err = -ENOMEM;
+       char str[NAME_MAX];
+       struct rtrs_sess *s;
+       struct rtrs_addr path;
 
        if (srv->paths_num >= MAX_PATHS_NUM) {
                err = -ECONNRESET;
@@ -1717,6 +1720,14 @@ static struct rtrs_srv_sess *__alloc_sess(struct rtrs_srv *srv,
        sess->cur_cq_vector = -1;
        sess->s.dst_addr = cm_id->route.addr.dst_addr;
        sess->s.src_addr = cm_id->route.addr.src_addr;
+
+       /* temporary until receiving session-name from client */
+       s = &sess->s;
+       path.src = &sess->s.src_addr;
+       path.dst = &sess->s.dst_addr;
+       rtrs_addr_to_str(&path, str, sizeof(str));
+       strlcpy(sess->s.sessname, str, sizeof(sess->s.sessname));
+
        sess->s.con_num = con_num;
        sess->s.recon_cnt = recon_cnt;
        uuid_copy(&sess->s.uuid, uuid);