diff options
Diffstat (limited to 'include/rdma/ib_addr.h')
-rw-r--r-- | include/rdma/ib_addr.h | 54 |
1 files changed, 18 insertions, 36 deletions
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index ec5008cf5d51..d656809f1217 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -94,7 +94,7 @@ struct rdma_dev_addr { * The dev_addr->net field must be initialized. */ int rdma_translate_ip(const struct sockaddr *addr, - struct rdma_dev_addr *dev_addr, u16 *vlan_id); + struct rdma_dev_addr *dev_addr); /** * rdma_resolve_ip - Resolve source and destination IP addresses to @@ -125,15 +125,15 @@ int rdma_resolve_ip_route(struct sockaddr *src_addr, void rdma_addr_cancel(struct rdma_dev_addr *addr); -int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev, - const unsigned char *dst_dev_addr); +void rdma_copy_addr(struct rdma_dev_addr *dev_addr, + const struct net_device *dev, + const unsigned char *dst_dev_addr); int rdma_addr_size(struct sockaddr *addr); -int rdma_addr_find_smac_by_sgid(union ib_gid *sgid, u8 *smac, u16 *vlan_id); int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid, const union ib_gid *dgid, - u8 *smac, u16 *vlan_id, int *if_index, + u8 *dmac, const struct net_device *ndev, int *hoplimit); static inline u16 ib_addr_get_pkey(struct rdma_dev_addr *dev_addr) @@ -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) @@ -245,10 +226,11 @@ static inline void rdma_addr_set_dgid(struct rdma_dev_addr *dev_addr, union ib_g static inline enum ib_mtu iboe_get_mtu(int mtu) { /* - * reduce IB headers from effective IBoE MTU. 28 stands for - * atomic header which is the biggest possible header after BTH + * Reduce IB headers from effective IBoE MTU. */ - mtu = mtu - IB_GRH_BYTES - IB_BTH_BYTES - 28; + mtu = mtu - (IB_GRH_BYTES + IB_UDP_BYTES + IB_BTH_BYTES + + IB_EXT_XRC_BYTES + IB_EXT_ATOMICETH_BYTES + + IB_ICRC_BYTES); if (mtu >= ib_mtu_enum_to_int(IB_MTU_4096)) return IB_MTU_4096; @@ -305,12 +287,12 @@ static inline void rdma_get_ll_mac(struct in6_addr *addr, u8 *mac) static inline int rdma_is_multicast_addr(struct in6_addr *addr) { - u32 ipv4_addr; + __be32 ipv4_addr; if (addr->s6_addr[0] == 0xff) return 1; - memcpy(&ipv4_addr, addr->s6_addr + 12, 4); + ipv4_addr = addr->s6_addr32[3]; return (ipv6_addr_v4mapped(addr) && ipv4_is_multicast(ipv4_addr)); } |