diff options
| author |   Noa Osherovich <noaos@mellanox.com> | 2017-06-12 11:14:04 +0300 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-07-24 10:40:23 -0400 |
| commit | 9636a56fa864464896bf7d1272c701f2b9a57737 (patch) | |
| tree | 692f9930c6fbe4a8aa0f746c789a8c9e9336615a /drivers/infiniband/core | |
| parent | IB/core: Set RoCEv2 MGID according to spec (diff) | |
| download | linux-dev-9636a56fa864464896bf7d1272c701f2b9a57737.tar.xz linux-dev-9636a56fa864464896bf7d1272c701f2b9a57737.zip | |
IB/core: Add support for RoCEv2 multicast
When creating address handle from multicast GID, set MAC according to
the appropriate formula instead of searching for it in the GID table:
- For IPv4 multicast GID use ip_eth_mc_map().
- For IPv6 multicast GID use ipv6_eth_mc_map().
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 30fdc3ae1bbd..e8006677b01c 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1244,6 +1244,18 @@ int ib_resolve_eth_dmac(struct ib_device *device, if (rdma_link_local_addr((struct in6_addr *)grh->dgid.raw)) { rdma_get_ll_mac((struct in6_addr *)grh->dgid.raw, ah_attr->roce.dmac); + return 0; + } + if (rdma_is_multicast_addr((struct in6_addr *)ah_attr->grh.dgid.raw)) { + if (ipv6_addr_v4mapped((struct in6_addr *)ah_attr->grh.dgid.raw)) { + __be32 addr = 0; + + memcpy(&addr, ah_attr->grh.dgid.raw + 12, 4); + ip_eth_mc_map(addr, (char *)ah_attr->roce.dmac); + } else { + ipv6_eth_mc_map((struct in6_addr *)ah_attr->grh.dgid.raw, + (char *)ah_attr->roce.dmac); + } } else { union ib_gid sgid; struct ib_gid_attr sgid_attr; |