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authorSantosh Shilimkar <santosh.shilimkar@oracle.com>2016-07-10 04:31:38 +0300
committerSantosh Shilimkar <santosh.shilimkar@oracle.com>2017-01-03 01:02:50 +0300
commit581d53c91cbf7b31415a9ed5e9a8b89d6af609b3 (patch)
tree31f25e649c2140e6e41ba10cc27706f6bd65871d /net/rds
parentc536a068870a08fb7b35482e701a6b72e294b493 (diff)
downloadlinux-581d53c91cbf7b31415a9ed5e9a8b89d6af609b3.tar.xz
RDS: IB: track and log active side endpoint in connection
Useful to know the active and passive end points in a RDS IB connection. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Diffstat (limited to 'net/rds')
-rw-r--r--net/rds/ib.h3
-rw-r--r--net/rds/ib_cm.c11
2 files changed, 10 insertions, 4 deletions
diff --git a/net/rds/ib.h b/net/rds/ib.h
index f14c26d22b27..5f02b4d8f10c 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -181,6 +181,9 @@ struct rds_ib_connection {
/* Batched completions */
unsigned int i_unsignaled_wrs;
+
+ /* Endpoint role in connection */
+ bool i_active_side;
};
/* This assumes that atomic_t is at least 32 bits */
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 3002acf75766..4d1bf04b06b5 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -120,16 +120,17 @@ void rds_ib_cm_connect_complete(struct rds_connection *conn, struct rdma_cm_even
rds_conn_destroy(conn);
return;
} else {
- pr_notice("RDS/IB: connected <%pI4,%pI4> version %u.%u%s\n",
+ pr_notice("RDS/IB: %s conn connected <%pI4,%pI4> version %u.%u%s\n",
+ ic->i_active_side ? "Active" : "Passive",
&conn->c_laddr, &conn->c_faddr,
RDS_PROTOCOL_MAJOR(conn->c_version),
RDS_PROTOCOL_MINOR(conn->c_version),
ic->i_flowctl ? ", flow control" : "");
}
- /*
- * Init rings and fill recv. this needs to wait until protocol negotiation
- * is complete, since ring layout is different from 3.0 to 3.1.
+ /* Init rings and fill recv. this needs to wait until protocol
+ * negotiation is complete, since ring layout is different
+ * from 3.1 to 4.1.
*/
rds_ib_send_init_ring(ic);
rds_ib_recv_init_ring(ic);
@@ -685,6 +686,7 @@ out:
if (ic->i_cm_id == cm_id)
ret = 0;
}
+ ic->i_active_side = true;
return ret;
}
@@ -859,6 +861,7 @@ void rds_ib_conn_path_shutdown(struct rds_conn_path *cp)
ic->i_sends = NULL;
vfree(ic->i_recvs);
ic->i_recvs = NULL;
+ ic->i_active_side = false;
}
int rds_ib_conn_alloc(struct rds_connection *conn, gfp_t gfp)