Author: hselasky
Date: Tue Jul 17 09:36:04 2018
New Revision: 336388
URL: https://svnweb.freebsd.org/changeset/base/336388
Log:
Add support for RoCEv2 multicast in ibcore.
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().
Linux commit:
9636a56fa864464896bf7d1272c701f2b9a57737
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/ofed/drivers/infiniband/core/ib_verbs.c
Modified: head/sys/ofed/drivers/infiniband/core/ib_verbs.c
==============================================================================
--- head/sys/ofed/drivers/infiniband/core/ib_verbs.c Tue Jul 17 09:34:29
2018 (r336387)
+++ head/sys/ofed/drivers/infiniband/core/ib_verbs.c Tue Jul 17 09:36:04
2018 (r336388)
@@ -1172,6 +1172,19 @@ int ib_resolve_eth_dmac(struct ib_device *device,
if (!rdma_cap_eth_ah(device, ah_attr->port_num))
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->dmac);
+ } else {
+ ipv6_eth_mc_map((struct in6_addr
*)ah_attr->grh.dgid.raw,
+ (char *)ah_attr->dmac);
+ }
+ return 0;
+ }
+
ret = ib_query_gid(device,
ah_attr->port_num,
ah_attr->grh.sgid_index,
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
