diff options
Diffstat (limited to 'net/rds/ib_cm.c')
| -rw-r--r-- | net/rds/ib_cm.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c index dd8a867e5a9c..a33b82dc0804 100644 --- a/net/rds/ib_cm.c +++ b/net/rds/ib_cm.c @@ -678,7 +678,7 @@ static u32 rds_ib_protocol_compatible(struct rdma_cm_event *event, bool isv6) return version; } -/* Given an IPv6 address, find the IB net_device which hosts that address and +/* Given an IPv6 address, find the net_device which hosts that address and * return its index. This is used by the rds_ib_cm_handle_connect() code to * find the interface index of where an incoming request comes from when * the request is using a link local address. @@ -695,8 +695,7 @@ static u32 __rds_find_ifindex(struct net *net, const struct in6_addr *addr) rcu_read_lock(); for_each_netdev_rcu(net, dev) { - if (dev->type == ARPHRD_INFINIBAND && - ipv6_chk_addr(net, addr, dev, 0)) { + if (ipv6_chk_addr(net, addr, dev, 1)) { idx = dev->ifindex; break; } @@ -736,7 +735,7 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id, dp_cmn = &dp->ricp_v6.dp_cmn; saddr6 = &dp->ricp_v6.dp_saddr; daddr6 = &dp->ricp_v6.dp_daddr; - /* If the local address is link local, need to find the + /* If either address is link local, need to find the * interface index in order to create a proper RDS * connection. */ @@ -748,6 +747,14 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id, err = -EOPNOTSUPP; goto out; } + } else if (ipv6_addr_type(saddr6) & IPV6_ADDR_LINKLOCAL) { + /* Use our address to find the correct index. */ + ifindex = __rds_find_ifindex(&init_net, daddr6); + /* No index found... Need to bail out. */ + if (ifindex == 0) { + err = -EOPNOTSUPP; + goto out; + } } } else { dp_cmn = &dp->ricp_v4.dp_cmn; @@ -886,7 +893,10 @@ int rds_ib_conn_path_connect(struct rds_conn_path *cp) /* XXX I wonder what affect the port space has */ /* delegate cm event handler to rdma_transport */ - handler = rds_rdma_cm_event_handler; + if (conn->c_isv6) + handler = rds6_rdma_cm_event_handler; + else + handler = rds_rdma_cm_event_handler; ic->i_cm_id = rdma_create_id(&init_net, handler, conn, RDMA_PS_TCP, IB_QPT_RC); if (IS_ERR(ic->i_cm_id)) { |