diff options
| author |   Parav Pandit <parav@mellanox.com> | 2018-01-18 10:11:19 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-01-19 13:05:38 -0700 |
| commit | 15cbc5197693e138b16138b46050499e1cdebd1a (patch) | |
| tree | 1d4c6a8767cfa2b05ecd59c8c37a611944fd9588 /include/rdma/ib_addr.h | |
| parent | net/rds: Use rdma_read_gids to read connection GIDs (diff) | |
| download | wireguard-linux-15cbc5197693e138b16138b46050499e1cdebd1a.tar.xz wireguard-linux-15cbc5197693e138b16138b46050499e1cdebd1a.zip | |
RDMA/core: Simplify rdma_addr_get_sgid() to not support RoCE
Now that all callers who care about RoCE addresses have been
converted to use rdma_read_gids() simplify rdma_addr_get_sgid()
to only support real GID addresses.
Callers should only use it for OPA and IB transports.
The now deleted implementation for RoCE has several bugs related to IPv6
support and incorrect/inconsistent 'GID' addresses compared to the CM
paths.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/rdma/ib_addr.h')
| -rw-r--r-- | include/rdma/ib_addr.h | 33 |
1 files changed, 7 insertions, 26 deletions
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index dc0b642e0175..d656809f1217 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -197,34 +197,15 @@ static inline void rdma_gid2ip(struct sockaddr *out, const union ib_gid *gid) } } -static inline void iboe_addr_get_sgid(struct rdma_dev_addr *dev_addr, - union ib_gid *gid) -{ - struct net_device *dev; - struct in_device *ip4; - - dev = dev_get_by_index(&init_net, dev_addr->bound_dev_if); - if (dev) { - ip4 = in_dev_get(dev); - if (ip4 && ip4->ifa_list && ip4->ifa_list->ifa_address) - ipv6_addr_set_v4mapped(ip4->ifa_list->ifa_address, - (struct in6_addr *)gid); - - if (ip4) - in_dev_put(ip4); - - dev_put(dev); - } -} - +/* + * rdma_get/set_sgid/dgid() APIs are applicable to IB, and iWarp. + * They are not applicable to RoCE. + * RoCE GIDs are derived from the IP addresses. + */ static inline void rdma_addr_get_sgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) { - if (dev_addr->transport == RDMA_TRANSPORT_IB && - dev_addr->dev_type != ARPHRD_INFINIBAND) - iboe_addr_get_sgid(dev_addr, gid); - else - memcpy(gid, dev_addr->src_dev_addr + - rdma_addr_gid_offset(dev_addr), sizeof *gid); + memcpy(gid, dev_addr->src_dev_addr + rdma_addr_gid_offset(dev_addr), + sizeof(*gid)); } static inline void rdma_addr_set_sgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) |