diff options
| author | Somnath Kotur <Somnath.Kotur@Avagotech.Com> | 2015-12-23 14:56:51 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2015-12-23 10:35:11 -0500 |
| commit | c865f24628b9310e1815d59f723a34ea3df4890f (patch) | |
| tree | e750ee0e0e8170bb1c4c6ae274a222724ea9ba72 /drivers/infiniband/core/addr.c | |
| parent | 7766a99fdcd30c78fc8299db9102e3624232007c (diff) | |
| download | linux-c865f24628b9310e1815d59f723a34ea3df4890f.tar.bz2 | |
IB/core: Add rdma_network_type to wc
Providers should tell IB core the wc's network type.
This is used in order to search for the proper GID in the
GID table. When using HCAs that can't provide this info,
IB core tries to deep examine the packet and extract
the GID type by itself.
We choose sgid_index and type from all the matching entries in
RDMA-CM based on hint from the IP stack and we set hop_limit for
the IP packet based on above hint from IP stack.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Somnath Kotur <Somnath.Kotur@Avagotech.Com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/addr.c')
| -rw-r--r-- | drivers/infiniband/core/addr.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index 34b1adad07aa..6e35299e00e4 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -256,6 +256,12 @@ static int addr4_resolve(struct sockaddr_in *src_in, goto put; } + /* If there's a gateway, we're definitely in RoCE v2 (as RoCE v1 isn't + * routable) and we could set the network type accordingly. + */ + if (rt->rt_uses_gateway) + addr->network = RDMA_NETWORK_IPV4; + ret = dst_fetch_ha(&rt->dst, addr, &fl4.daddr); put: ip_rt_put(rt); @@ -270,6 +276,7 @@ static int addr6_resolve(struct sockaddr_in6 *src_in, { struct flowi6 fl6; struct dst_entry *dst; + struct rt6_info *rt; int ret; memset(&fl6, 0, sizeof fl6); @@ -281,6 +288,7 @@ static int addr6_resolve(struct sockaddr_in6 *src_in, if ((ret = dst->error)) goto put; + rt = (struct rt6_info *)dst; if (ipv6_addr_any(&fl6.saddr)) { ret = ipv6_dev_get_saddr(addr->net, ip6_dst_idev(dst)->dev, &fl6.daddr, 0, &fl6.saddr); @@ -304,6 +312,12 @@ static int addr6_resolve(struct sockaddr_in6 *src_in, goto put; } + /* If there's a gateway, we're definitely in RoCE v2 (as RoCE v1 isn't + * routable) and we could set the network type accordingly. + */ + if (rt->rt6i_flags & RTF_GATEWAY) + addr->network = RDMA_NETWORK_IPV6; + ret = dst_fetch_ha(dst, addr, &fl6.daddr); put: dst_release(dst); |