diff options
Diffstat (limited to 'include/rdma/ib_addr.h')
| -rw-r--r-- | include/rdma/ib_addr.h | 69 |
1 files changed, 49 insertions, 20 deletions
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index f3ac0f2c4c66..ce55906b54a0 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -38,10 +38,15 @@ #include <linux/in6.h> #include <linux/if_arp.h> #include <linux/netdevice.h> +#include <linux/inetdevice.h> #include <linux/socket.h> #include <linux/if_vlan.h> +#include <net/ipv6.h> +#include <net/if_inet6.h> +#include <net/ip.h> #include <rdma/ib_verbs.h> #include <rdma/ib_pack.h> +#include <net/ipv6.h> struct rdma_addr_client { atomic_t refcount; @@ -72,7 +77,8 @@ 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 +110,10 @@ 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]; @@ -126,41 +136,60 @@ static inline int rdma_addr_gid_offset(struct rdma_dev_addr *dev_addr) return dev_addr->dev_type == ARPHRD_INFINIBAND ? 4 : 0; } -static inline void iboe_mac_vlan_to_ll(union ib_gid *gid, u8 *mac, u16 vid) +static inline u16 rdma_vlan_dev_vlan_id(const struct net_device *dev) { - memset(gid->raw, 0, 16); - *((__be32 *) gid->raw) = cpu_to_be32(0xfe800000); - if (vid < 0x1000) { - gid->raw[12] = vid & 0xff; - gid->raw[11] = vid >> 8; - } else { - gid->raw[12] = 0xfe; - gid->raw[11] = 0xff; + return dev->priv_flags & IFF_802_1Q_VLAN ? + vlan_dev_vlan_id(dev) : 0xffff; +} + +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; } - memcpy(gid->raw + 13, mac + 3, 3); - memcpy(gid->raw + 8, mac, 3); - gid->raw[8] ^= 2; + return 0; } -static inline u16 rdma_vlan_dev_vlan_id(const struct net_device *dev) +/* Important - sockaddr should be a union of sockaddr_in and sockaddr_in6 */ +static inline int rdma_gid2ip(struct sockaddr *out, union ib_gid *gid) { - return dev->priv_flags & IFF_802_1Q_VLAN ? - vlan_dev_vlan_id(dev) : 0xffff; + 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 void iboe_addr_get_sgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) { struct net_device *dev; - u16 vid = 0xffff; + struct in_device *ip4; dev = dev_get_by_index(&init_net, dev_addr->bound_dev_if); if (dev) { - vid = rdma_vlan_dev_vlan_id(dev); + ip4 = (struct in_device *)dev->ip_ptr; + if (ip4 && ip4->ifa_list && ip4->ifa_list->ifa_address) + ipv6_addr_set_v4mapped(ip4->ifa_list->ifa_address, + (struct in6_addr *)gid); dev_put(dev); } - - iboe_mac_vlan_to_ll(gid, dev_addr->src_dev_addr, vid); } static inline void rdma_addr_get_sgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) |