^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2005 Voltaire Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2005 Intel Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #ifndef IB_ADDR_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #define IB_ADDR_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/in6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/if_arp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/inetdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/socket.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/if_vlan.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <net/ipv6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <net/if_inet6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <net/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <rdma/ib_verbs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <rdma/ib_pack.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <net/net_namespace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * struct rdma_dev_addr - Contains resolved RDMA hardware addresses
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * @src_dev_addr: Source MAC address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * @dst_dev_addr: Destination MAC address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * @broadcast: Broadcast address of the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * @dev_type: The interface hardware type of the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * @bound_dev_if: An optional device interface index.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * @transport: The transport type used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * @net: Network namespace containing the bound_dev_if net_dev.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * @sgid_attr: GID attribute to use for identified SGID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct rdma_dev_addr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) unsigned char src_dev_addr[MAX_ADDR_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) unsigned char dst_dev_addr[MAX_ADDR_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) unsigned char broadcast[MAX_ADDR_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) unsigned short dev_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int bound_dev_if;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) enum rdma_transport_type transport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct net *net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) const struct ib_gid_attr *sgid_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) enum rdma_network_type network;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) int hoplimit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * rdma_translate_ip - Translate a local IP address to an RDMA hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * The dev_addr->net field must be initialized.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) int rdma_translate_ip(const struct sockaddr *addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct rdma_dev_addr *dev_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * rdma_resolve_ip - Resolve source and destination IP addresses to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * RDMA hardware addresses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * @src_addr: An optional source address to use in the resolution. If a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * source address is not provided, a usable address will be returned via
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * the callback.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * @dst_addr: The destination address to resolve.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * @addr: A reference to a data location that will receive the resolved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * addresses. The data location must remain valid until the callback has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * been invoked. The net field of the addr struct must be valid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * @timeout_ms: Amount of time to wait for the address resolution to complete.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * @callback: Call invoked once address resolution has completed, timed out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * or been canceled. A status of 0 indicates success.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * @resolve_by_gid_attr: Resolve the ip based on the GID attribute from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * rdma_dev_addr.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * @context: User-specified context associated with the call.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) int rdma_resolve_ip(struct sockaddr *src_addr, const struct sockaddr *dst_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct rdma_dev_addr *addr, unsigned long timeout_ms,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) void (*callback)(int status, struct sockaddr *src_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct rdma_dev_addr *addr, void *context),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) bool resolve_by_gid_attr, void *context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) void rdma_addr_cancel(struct rdma_dev_addr *addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) int rdma_addr_size(const struct sockaddr *addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) int rdma_addr_size_in6(struct sockaddr_in6 *addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int rdma_addr_size_kss(struct __kernel_sockaddr_storage *addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static inline u16 ib_addr_get_pkey(struct rdma_dev_addr *dev_addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return ((u16)dev_addr->broadcast[8] << 8) | (u16)dev_addr->broadcast[9];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static inline void ib_addr_set_pkey(struct rdma_dev_addr *dev_addr, u16 pkey)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) dev_addr->broadcast[8] = pkey >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) dev_addr->broadcast[9] = (unsigned char) pkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static inline void ib_addr_get_mgid(struct rdma_dev_addr *dev_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) union ib_gid *gid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) memcpy(gid, dev_addr->broadcast + 4, sizeof *gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static inline int rdma_addr_gid_offset(struct rdma_dev_addr *dev_addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return dev_addr->dev_type == ARPHRD_INFINIBAND ? 4 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static inline u16 rdma_vlan_dev_vlan_id(const struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static inline int rdma_ip2gid(struct sockaddr *addr, union ib_gid *gid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) switch (addr->sa_family) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) case AF_INET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) ipv6_addr_set_v4mapped(((struct sockaddr_in *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) addr)->sin_addr.s_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) (struct in6_addr *)gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) case AF_INET6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) *(struct in6_addr *)&gid->raw =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) ((struct sockaddr_in6 *)addr)->sin6_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /* Important - sockaddr should be a union of sockaddr_in and sockaddr_in6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static inline void rdma_gid2ip(struct sockaddr *out, const union ib_gid *gid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (ipv6_addr_v4mapped((struct in6_addr *)gid)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct sockaddr_in *out_in = (struct sockaddr_in *)out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) memset(out_in, 0, sizeof(*out_in));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) out_in->sin_family = AF_INET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) memcpy(&out_in->sin_addr.s_addr, gid->raw + 12, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct sockaddr_in6 *out_in = (struct sockaddr_in6 *)out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) memset(out_in, 0, sizeof(*out_in));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) out_in->sin6_family = AF_INET6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) memcpy(&out_in->sin6_addr.s6_addr, gid->raw, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * rdma_get/set_sgid/dgid() APIs are applicable to IB, and iWarp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * They are not applicable to RoCE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * RoCE GIDs are derived from the IP addresses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static inline void rdma_addr_get_sgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) memcpy(gid, dev_addr->src_dev_addr + rdma_addr_gid_offset(dev_addr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) sizeof(*gid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) static inline void rdma_addr_set_sgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) memcpy(dev_addr->src_dev_addr + rdma_addr_gid_offset(dev_addr), gid, sizeof *gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) static inline void rdma_addr_get_dgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) memcpy(gid, dev_addr->dst_dev_addr + rdma_addr_gid_offset(dev_addr), sizeof *gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) static inline void rdma_addr_set_dgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) memcpy(dev_addr->dst_dev_addr + rdma_addr_gid_offset(dev_addr), gid, sizeof *gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static inline enum ib_mtu iboe_get_mtu(int mtu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * Reduce IB headers from effective IBoE MTU.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) mtu = mtu - (IB_GRH_BYTES + IB_UDP_BYTES + IB_BTH_BYTES +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) IB_EXT_XRC_BYTES + IB_EXT_ATOMICETH_BYTES +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) IB_ICRC_BYTES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (mtu >= ib_mtu_enum_to_int(IB_MTU_4096))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return IB_MTU_4096;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) else if (mtu >= ib_mtu_enum_to_int(IB_MTU_2048))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return IB_MTU_2048;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) else if (mtu >= ib_mtu_enum_to_int(IB_MTU_1024))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) return IB_MTU_1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) else if (mtu >= ib_mtu_enum_to_int(IB_MTU_512))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) return IB_MTU_512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) else if (mtu >= ib_mtu_enum_to_int(IB_MTU_256))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) return IB_MTU_256;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static inline int iboe_get_rate(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct ethtool_link_ksettings cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) err = __ethtool_get_link_ksettings(dev, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) return IB_RATE_PORT_CURRENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (cmd.base.speed >= 40000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return IB_RATE_40_GBPS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) else if (cmd.base.speed >= 30000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return IB_RATE_30_GBPS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) else if (cmd.base.speed >= 20000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return IB_RATE_20_GBPS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) else if (cmd.base.speed >= 10000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) return IB_RATE_10_GBPS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) return IB_RATE_PORT_CURRENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) static inline int rdma_link_local_addr(struct in6_addr *addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) if (addr->s6_addr32[0] == htonl(0xfe800000) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) addr->s6_addr32[1] == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static inline void rdma_get_ll_mac(struct in6_addr *addr, u8 *mac)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) memcpy(mac, &addr->s6_addr[8], 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) memcpy(mac + 3, &addr->s6_addr[13], 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) mac[0] ^= 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static inline int rdma_is_multicast_addr(struct in6_addr *addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) __be32 ipv4_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) if (addr->s6_addr[0] == 0xff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) ipv4_addr = addr->s6_addr32[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return (ipv6_addr_v4mapped(addr) && ipv4_is_multicast(ipv4_addr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static inline void rdma_get_mcast_mac(struct in6_addr *addr, u8 *mac)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) mac[0] = 0x33;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) mac[1] = 0x33;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) for (i = 2; i < 6; ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) mac[i] = addr->s6_addr[i + 10];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static inline u16 rdma_get_vlan_id(union ib_gid *dgid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) u16 vid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) vid = dgid->raw[11] << 8 | dgid->raw[12];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) return vid < 0x1000 ? vid : 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) static inline struct net_device *rdma_vlan_dev_real_dev(const struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) return is_vlan_dev(dev) ? vlan_dev_real_dev(dev) : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) #endif /* IB_ADDR_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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