Rely on the IP_BASED_GIDS flag to use the ibv_resolve_eth_l2_from_gid function when creating the AH. Otherwise, fallback to the set_mac_from_gid function to set the DMAC. Reviewed-by: Aditya Sarwade <asarwade@xxxxxxxxxx> Signed-off-by: Adit Ranadive <aditr@xxxxxxxxxx> --- Pull request: https://github.com/linux-rdma/rdma-core/pull/205 providers/vmw_pvrdma/verbs.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/providers/vmw_pvrdma/verbs.c b/providers/vmw_pvrdma/verbs.c index 852aced..a32046b 100644 --- a/providers/vmw_pvrdma/verbs.c +++ b/providers/vmw_pvrdma/verbs.c @@ -166,7 +166,7 @@ static int is_ipv6_addr_v4mapped(const struct in6_addr *a) (a->s6_addr32[2] ^ htobe32(0x0000ffff))) == 0UL)); } -static void set_mac_from_gid(const union ibv_gid *gid, +static int set_mac_from_gid(const union ibv_gid *gid, __u8 mac[6]) { if (is_link_local_gid(gid)) { @@ -177,7 +177,11 @@ static void set_mac_from_gid(const union ibv_gid *gid, memcpy(mac, gid->raw + 8, 3); memcpy(mac + 3, gid->raw + 13, 3); mac[0] ^= 2; + + return 0; } + + return 1; } struct ibv_ah *pvrdma_create_ah(struct ibv_pd *pd, @@ -218,15 +222,17 @@ struct ibv_ah *pvrdma_create_ah(struct ibv_pd *pd, attr->grh.flow_label; memcpy(av->dgid, attr->grh.dgid.raw, 16); - if (ibv_resolve_eth_l2_from_gid(pd->context, attr, - av->dmac, &vlan_id)) { - free(ah); - return NULL; + if (port_attr.port_cap_flags & IBV_PORT_IP_BASED_GIDS) { + if (!ibv_resolve_eth_l2_from_gid(pd->context, attr, + av->dmac, &vlan_id)) + return &ah->ibv_ah; } else { - set_mac_from_gid(&attr->grh.dgid, av->dmac); + if (!set_mac_from_gid(&attr->grh.dgid, av->dmac)) + return &ah->ibv_ah; } - return &ah->ibv_ah; + free(ah); + return NULL; } int pvrdma_destroy_ah(struct ibv_ah *ah) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
