RDMA/nes: Add loopback check to make_cm_node()

Check for loopback connection in make_cm_node().

Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 0997c7b8cd9b..f241ca104d16 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -1142,7 +1142,10 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
 
         cm_node->loopbackpartner = NULL;
         /* get the mac addr for the remote node */
-        arpindex = nes_arp_table(nesdev, cm_node->rem_addr, NULL, NES_ARP_RESOLVE);
+        if (ipv4_is_loopback(htonl(cm_node->rem_addr)))
+                arpindex = nes_arp_table(nesdev, ntohl(nesvnic->local_ipaddr), NULL, NES_ARP_RESOLVE);
+        else
+                arpindex = nes_arp_table(nesdev, cm_node->rem_addr, NULL, NES_ARP_RESOLVE);
         if (arpindex < 0) {
                 arpindex = nes_addr_resolve_neigh(nesvnic, cm_info->rem_addr);
                 if (arpindex < 0) {