diff options
Diffstat (limited to 'include/rdma/ib_addr.h')
| -rw-r--r-- | include/rdma/ib_addr.h | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index f3ac0f2c4c66..a0715606ebb2 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -42,6 +42,7 @@ #include <linux/if_vlan.h> #include <rdma/ib_verbs.h> #include <rdma/ib_pack.h> +#include <net/ipv6.h> struct rdma_addr_client { atomic_t refcount; @@ -72,7 +73,8 @@ struct rdma_dev_addr { * rdma_translate_ip - Translate a local IP address to an RDMA hardware * address. */ -int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr); +int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr, + u16 *vlan_id); /** * rdma_resolve_ip - Resolve source and destination IP addresses to @@ -104,6 +106,10 @@ int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev, 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_dmac_by_grh(union ib_gid *sgid, union ib_gid *dgid, u8 *smac, + u16 *vlan_id); + static inline u16 ib_addr_get_pkey(struct rdma_dev_addr *dev_addr) { return ((u16)dev_addr->broadcast[8] << 8) | (u16)dev_addr->broadcast[9]; @@ -142,6 +148,40 @@ static inline void iboe_mac_vlan_to_ll(union ib_gid *gid, u8 *mac, u16 vid) gid->raw[8] ^= 2; } +static inline int rdma_ip2gid(struct sockaddr *addr, union ib_gid *gid) +{ + switch (addr->sa_family) { + case AF_INET: + ipv6_addr_set_v4mapped(((struct sockaddr_in *) + addr)->sin_addr.s_addr, + (struct in6_addr *)gid); + break; + case AF_INET6: + memcpy(gid->raw, &((struct sockaddr_in6 *)addr)->sin6_addr, 16); + break; + default: + return -EINVAL; + } + return 0; +} + +/* Important - sockaddr should be a union of sockaddr_in and sockaddr_in6 */ +static inline int rdma_gid2ip(struct sockaddr *out, union ib_gid *gid) +{ + if (ipv6_addr_v4mapped((struct in6_addr *)gid)) { + struct sockaddr_in *out_in = (struct sockaddr_in *)out; + memset(out_in, 0, sizeof(*out_in)); + out_in->sin_family = AF_INET; + memcpy(&out_in->sin_addr.s_addr, gid->raw + 12, 4); + } else { + struct sockaddr_in6 *out_in = (struct sockaddr_in6 *)out; + memset(out_in, 0, sizeof(*out_in)); + out_in->sin6_family = AF_INET6; + memcpy(&out_in->sin6_addr.s6_addr, gid->raw, 16); + } + return 0; +} + static inline u16 rdma_vlan_dev_vlan_id(const struct net_device *dev) { return dev->priv_flags & IFF_802_1Q_VLAN ? |