diff options
Diffstat (limited to 'drivers/infiniband/hw/nes/nes_cm.c')
| -rw-r--r-- | drivers/infiniband/hw/nes/nes_cm.c | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index 4acf04a03e1c..39468c277036 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -1098,12 +1098,13 @@ static inline int mini_cm_accelerated(struct nes_cm_core *cm_core, /** * nes_addr_resolve_neigh */ -static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip) +static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpindex) { struct rtable *rt; struct flowi fl; struct neighbour *neigh; - int rc = -1; + int rc = arpindex; + struct nes_adapter *nesadapter = nesvnic->nesdev->nesadapter; memset(&fl, 0, sizeof fl); fl.nl_u.ip4_u.daddr = htonl(dst_ip); @@ -1119,6 +1120,21 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip) nes_debug(NES_DBG_CM, "Neighbor MAC address for 0x%08X" " is %pM, Gateway is 0x%08X \n", dst_ip, neigh->ha, ntohl(rt->rt_gateway)); + + if (arpindex >= 0) { + if (!memcmp(nesadapter->arp_table[arpindex].mac_addr, + neigh->ha, ETH_ALEN)){ + /* Mac address same as in nes_arp_table */ + neigh_release(neigh); + ip_rt_put(rt); + return rc; + } + + nes_manage_arp_cache(nesvnic->netdev, + nesadapter->arp_table[arpindex].mac_addr, + dst_ip, NES_ARP_DELETE); + } + nes_manage_arp_cache(nesvnic->netdev, neigh->ha, dst_ip, NES_ARP_ADD); rc = nes_arp_table(nesvnic->nesdev, dst_ip, NULL, @@ -1134,7 +1150,6 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip) return rc; } - /** * make_cm_node - create a new instance of a cm node */ @@ -1144,6 +1159,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core, { struct nes_cm_node *cm_node; struct timespec ts; + int oldarpindex = 0; int arpindex = 0; struct nes_device *nesdev; struct nes_adapter *nesadapter; @@ -1197,17 +1213,18 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core, nesadapter = nesdev->nesadapter; cm_node->loopbackpartner = NULL; + /* get the mac addr for the remote node */ 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); + else { + oldarpindex = nes_arp_table(nesdev, cm_node->rem_addr, NULL, NES_ARP_RESOLVE); + arpindex = nes_addr_resolve_neigh(nesvnic, cm_info->rem_addr, oldarpindex); + + } if (arpindex < 0) { - arpindex = nes_addr_resolve_neigh(nesvnic, cm_info->rem_addr); - if (arpindex < 0) { - kfree(cm_node); - return NULL; - } + kfree(cm_node); + return NULL; } /* copy the mac addr to node context */ |