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ib.h
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ib_addr.h
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ib_cache.h
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ib_cm.h
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ib_fmr_pool.h
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ib_hdrs.h
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ib_mad.h
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ib_marshall.h
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ib_pack.h
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ib_pma.h
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ib_sa.h
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ib_smi.h
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ib_umem.h
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ib_umem_odp.h
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ib_verbs.h
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iw_cm.h
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iw_portmap.h
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opa_port_info.h
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opa_smi.h
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rdma_cm.h
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rdma_cm_ib.h
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rdma_sdp.h
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rdma_vt.h
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rdmavt_cq.h
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rdmavt_mr.h
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rdmavt_qp.h
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Editing: ib_addr.h
/*- * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 * * Copyright (c) 2005 Voltaire Inc. All rights reserved. * Copyright (c) 2005 Intel Corporation. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * $FreeBSD$ */ #if !defined(IB_ADDR_H) #define IB_ADDR_H #include <linux/in.h> #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; struct completion comp; }; union rdma_sockaddr { struct sockaddr _sockaddr; struct sockaddr_in _sockaddr_in; struct sockaddr_in6 _sockaddr_in6; struct sockaddr_storage _sockaddr_ss; }; /** * rdma_addr_register_client - Register an address client. */ void rdma_addr_register_client(struct rdma_addr_client *client); /** * rdma_addr_unregister_client - Deregister an address client. * @client: Client object to deregister. */ void rdma_addr_unregister_client(struct rdma_addr_client *client); /** * struct rdma_dev_addr - Contains resolved RDMA hardware addresses * @src_dev_addr: Source MAC address. * @dst_dev_addr: Destination MAC address. * @broadcast: Broadcast address of the device. * @dev_type: The interface hardware type of the device. * @bound_dev_if: An optional device interface index. * @transport: The transport type used. * @net: Network namespace containing the bound_dev_if net_dev. */ struct vnet; struct rdma_dev_addr { unsigned char src_dev_addr[MAX_ADDR_LEN]; unsigned char dst_dev_addr[MAX_ADDR_LEN]; unsigned char broadcast[MAX_ADDR_LEN]; unsigned short dev_type; int bound_dev_if; enum rdma_transport_type transport; struct vnet *net; enum rdma_network_type network; int hoplimit; }; /** * rdma_translate_ip - Translate a local IP address to an RDMA hardware * address. * * The dev_addr->net and dev_addr->bound_dev_if fields must be initialized. */ int rdma_translate_ip(const struct sockaddr *addr, struct rdma_dev_addr *dev_addr); /** * rdma_resolve_ip - Resolve source and destination IP addresses to * RDMA hardware addresses. * @client: Address client associated with request. * @src_addr: An optional source address to use in the resolution. If a * source address is not provided, a usable address will be returned via * the callback. * @dst_addr: The destination address to resolve. * @addr: A reference to a data location that will receive the resolved * addresses. The data location must remain valid until the callback has * been invoked. The net field of the addr struct must be valid. * @timeout_ms: Amount of time to wait for the address resolution to complete. * @callback: Call invoked once address resolution has completed, timed out, * or been canceled. A status of 0 indicates success. * @context: User-specified context associated with the call. */ int rdma_resolve_ip(struct rdma_addr_client *client, struct sockaddr *src_addr, struct sockaddr *dst_addr, struct rdma_dev_addr *addr, int timeout_ms, void (*callback)(int status, struct sockaddr *src_addr, struct rdma_dev_addr *addr, void *context), void *context); int rdma_resolve_ip_route(struct sockaddr *src_addr, const struct sockaddr *dst_addr, struct rdma_dev_addr *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); int rdma_addr_size(struct sockaddr *addr); int rdma_addr_size_in6(struct sockaddr_in6 *addr); int rdma_addr_size_kss(struct sockaddr_storage *addr); int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid, const union ib_gid *dgid, u8 *smac, struct net_device *dev, int *hoplimit); 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]; } static inline void ib_addr_set_pkey(struct rdma_dev_addr *dev_addr, u16 pkey) { dev_addr->broadcast[8] = pkey >> 8; dev_addr->broadcast[9] = (unsigned char) pkey; } static inline void ib_addr_get_mgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) { memcpy(gid, dev_addr->broadcast + 4, sizeof *gid); } static inline int rdma_addr_gid_offset(struct rdma_dev_addr *dev_addr) { return dev_addr->dev_type == ARPHRD_INFINIBAND ? 4 : 0; } static inline u16 rdma_vlan_dev_vlan_id(const struct net_device *dev) { uint16_t tag; if (dev->if_type == IFT_ETHER && dev->if_pcp != IFNET_PCP_NONE) return 0x0000; /* prio-tagged traffic */ if (VLAN_TAG(__DECONST(struct ifnet *, dev), &tag) != 0) return 0xffff; return tag; } static inline int rdma_ip2gid(const struct sockaddr *addr, union ib_gid *gid) { switch (addr->sa_family) { case AF_INET: ipv6_addr_set_v4mapped(((const struct sockaddr_in *) addr)->sin_addr.s_addr, (struct in6_addr *)gid); break; case AF_INET6: memcpy(gid->raw, &((const struct sockaddr_in6 *)addr)->sin6_addr, 16); /* make sure scope ID gets zeroed inside GID */ if (IN6_IS_SCOPE_LINKLOCAL((struct in6_addr *)gid->raw) || IN6_IS_ADDR_MC_INTFACELOCAL((struct in6_addr *)gid->raw)) { gid->raw[2] = 0; gid->raw[3] = 0; } break; default: return -EINVAL; } return 0; } /* Important - sockaddr should be a union of sockaddr_in and sockaddr_in6 */ static inline void rdma_gid2ip(struct sockaddr *out, const union ib_gid *gid) { if (ipv6_addr_v4mapped((const struct in6_addr *)gid)) { struct sockaddr_in *out_in = (struct sockaddr_in *)out; memset(out_in, 0, sizeof(*out_in)); out_in->sin_len = 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_len = sizeof(*out_in); out_in->sin6_family = AF_INET6; memcpy(&out_in->sin6_addr.s6_addr, gid->raw, 16); } } static inline void iboe_addr_get_sgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) { struct net_device *dev; struct ifaddr *ifa; #ifdef VIMAGE if (dev_addr->net == NULL) return; #endif dev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if); if (dev) { CK_STAILQ_FOREACH(ifa, &dev->if_addrhead, ifa_link) { if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != AF_INET) continue; ipv6_addr_set_v4mapped(((struct sockaddr_in *) ifa->ifa_addr)->sin_addr.s_addr, (struct in6_addr *)gid); break; } dev_put(dev); } } 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); } static inline void rdma_addr_set_sgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) { memcpy(dev_addr->src_dev_addr + rdma_addr_gid_offset(dev_addr), gid, sizeof *gid); } static inline void rdma_addr_get_dgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) { memcpy(gid, dev_addr->dst_dev_addr + rdma_addr_gid_offset(dev_addr), sizeof *gid); } static inline void rdma_addr_set_dgid(struct rdma_dev_addr *dev_addr, union ib_gid *gid) { memcpy(dev_addr->dst_dev_addr + rdma_addr_gid_offset(dev_addr), gid, sizeof *gid); } 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 */ mtu = mtu - IB_GRH_BYTES - IB_BTH_BYTES - 28; if (mtu >= ib_mtu_enum_to_int(IB_MTU_4096)) return IB_MTU_4096; else if (mtu >= ib_mtu_enum_to_int(IB_MTU_2048)) return IB_MTU_2048; else if (mtu >= ib_mtu_enum_to_int(IB_MTU_1024)) return IB_MTU_1024; else if (mtu >= ib_mtu_enum_to_int(IB_MTU_512)) return IB_MTU_512; else if (mtu >= ib_mtu_enum_to_int(IB_MTU_256)) return IB_MTU_256; else return 0; } static inline int iboe_get_rate(struct net_device *dev) { uint64_t baudrate = dev->if_baudrate; #ifdef if_baudrate_pf int exp; for (exp = dev->if_baudrate_pf; exp > 0; exp--) baudrate *= 10; #endif if (baudrate >= IF_Gbps(40)) return IB_RATE_40_GBPS; else if (baudrate >= IF_Gbps(30)) return IB_RATE_30_GBPS; else if (baudrate >= IF_Gbps(20)) return IB_RATE_20_GBPS; else if (baudrate >= IF_Gbps(10)) return IB_RATE_10_GBPS; else return IB_RATE_PORT_CURRENT; } static inline int rdma_link_local_addr(struct in6_addr *addr) { if (addr->s6_addr32[0] == htonl(0xfe800000) && addr->s6_addr32[1] == 0) return 1; return 0; } static inline void rdma_get_ll_mac(struct in6_addr *addr, u8 *mac) { memcpy(mac, &addr->s6_addr[8], 3); memcpy(mac + 3, &addr->s6_addr[13], 3); mac[0] ^= 2; } static inline int rdma_is_multicast_addr(struct in6_addr *addr) { __be32 ipv4_addr; if (addr->s6_addr[0] == 0xff) return 1; ipv4_addr = addr->s6_addr32[3]; return (ipv6_addr_v4mapped(addr) && ipv4_is_multicast(ipv4_addr)); } static inline void rdma_get_mcast_mac(struct in6_addr *addr, u8 *mac) { int i; mac[0] = 0x33; mac[1] = 0x33; for (i = 2; i < 6; ++i) mac[i] = addr->s6_addr[i + 10]; } static inline u16 rdma_get_vlan_id(union ib_gid *dgid) { u16 vid; vid = dgid->raw[11] << 8 | dgid->raw[12]; return vid < 0x1000 ? vid : 0xffff; } static inline struct net_device *rdma_vlan_dev_real_dev(struct net_device *dev) { struct epoch_tracker et; NET_EPOCH_ENTER(et); if (dev->if_type != IFT_ETHER || dev->if_pcp == IFNET_PCP_NONE) dev = VLAN_TRUNKDEV(dev); /* non prio-tagged traffic */ NET_EPOCH_EXIT(et); return (dev); } #endif /* IB_ADDR_H */
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