1/* 2 * Copyright (c) 2004 Topspin Communications. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33#ifndef _CORE_PRIV_H 34#define _CORE_PRIV_H 35 36#include <linux/list.h> 37#include <linux/spinlock.h> 38#include <linux/cgroup_rdma.h> 39#include <net/net_namespace.h> 40#include <net/netns/generic.h> 41 42#include <rdma/ib_verbs.h> 43#include <rdma/opa_addr.h> 44#include <rdma/ib_mad.h> 45#include <rdma/restrack.h> 46#include "mad_priv.h" 47#include "restrack.h" 48 49/* Total number of ports combined across all struct ib_devices's */ 50#define RDMA_MAX_PORTS 8192 51 52struct pkey_index_qp_list { 53 struct list_head pkey_index_list; 54 u16 pkey_index; 55 /* Lock to hold while iterating the qp_list. */ 56 spinlock_t qp_list_lock; 57 struct list_head qp_list; 58}; 59 60/** 61 * struct rdma_dev_net - rdma net namespace metadata for a net 62 * @nl_sock: Pointer to netlink socket 63 * @net: Pointer to owner net namespace 64 * @id: xarray id to identify the net namespace. 65 */ 66struct rdma_dev_net { 67 struct sock *nl_sock; 68 possible_net_t net; 69 u32 id; 70}; 71 72extern const struct attribute_group ib_dev_attr_group; 73extern bool ib_devices_shared_netns; 74extern unsigned int rdma_dev_net_id; 75 76static inline struct rdma_dev_net *rdma_net_to_dev_net(struct net *net) 77{ 78 return net_generic(net, rdma_dev_net_id); 79} 80 81int ib_device_rename(struct ib_device *ibdev, const char *name); 82int ib_device_set_dim(struct ib_device *ibdev, u8 use_dim); 83 84typedef void (*roce_netdev_callback)(struct ib_device *device, u32 port, 85 struct net_device *idev, void *cookie); 86 87typedef bool (*roce_netdev_filter)(struct ib_device *device, u32 port, 88 struct net_device *idev, void *cookie); 89 90struct net_device *ib_device_get_netdev(struct ib_device *ib_dev, 91 u32 port); 92 93void ib_enum_roce_netdev(struct ib_device *ib_dev, 94 roce_netdev_filter filter, 95 void *filter_cookie, 96 roce_netdev_callback cb, 97 void *cookie); 98void ib_enum_all_roce_netdevs(roce_netdev_filter filter, 99 void *filter_cookie, 100 roce_netdev_callback cb, 101 void *cookie); 102 103typedef int (*nldev_callback)(struct ib_device *device, 104 struct sk_buff *skb, 105 struct netlink_callback *cb, 106 unsigned int idx); 107 108int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb, 109 struct netlink_callback *cb); 110 111struct ib_client_nl_info { 112 struct sk_buff *nl_msg; 113 struct device *cdev; 114 u32 port; 115 u64 abi; 116}; 117int ib_get_client_nl_info(struct ib_device *ibdev, const char *client_name, 118 struct ib_client_nl_info *res); 119 120enum ib_cache_gid_default_mode { 121 IB_CACHE_GID_DEFAULT_MODE_SET, 122 IB_CACHE_GID_DEFAULT_MODE_DELETE 123}; 124 125int ib_cache_gid_parse_type_str(const char *buf); 126 127const char *ib_cache_gid_type_str(enum ib_gid_type gid_type); 128 129void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u32 port, 130 struct net_device *ndev, 131 unsigned long gid_type_mask, 132 enum ib_cache_gid_default_mode mode); 133 134int ib_cache_gid_add(struct ib_device *ib_dev, u32 port, 135 union ib_gid *gid, struct ib_gid_attr *attr); 136 137int ib_cache_gid_del(struct ib_device *ib_dev, u32 port, 138 union ib_gid *gid, struct ib_gid_attr *attr); 139 140int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u32 port, 141 struct net_device *ndev); 142 143int roce_gid_mgmt_init(void); 144void roce_gid_mgmt_cleanup(void); 145 146unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u32 port); 147 148int ib_cache_setup_one(struct ib_device *device); 149void ib_cache_cleanup_one(struct ib_device *device); 150void ib_cache_release_one(struct ib_device *device); 151void ib_dispatch_event_clients(struct ib_event *event); 152 153#ifdef CONFIG_CGROUP_RDMA 154void ib_device_register_rdmacg(struct ib_device *device); 155void ib_device_unregister_rdmacg(struct ib_device *device); 156 157int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 158 struct ib_device *device, 159 enum rdmacg_resource_type resource_index); 160 161void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 162 struct ib_device *device, 163 enum rdmacg_resource_type resource_index); 164#else 165static inline void ib_device_register_rdmacg(struct ib_device *device) 166{ 167} 168 169static inline void ib_device_unregister_rdmacg(struct ib_device *device) 170{ 171} 172 173static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 174 struct ib_device *device, 175 enum rdmacg_resource_type resource_index) 176{ 177 return 0; 178} 179 180static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 181 struct ib_device *device, 182 enum rdmacg_resource_type resource_index) 183{ 184} 185#endif 186 187static inline bool rdma_is_upper_dev_rcu(struct net_device *dev, 188 struct net_device *upper) 189{ 190 return netdev_has_upper_dev_all_rcu(dev, upper); 191} 192 193int addr_init(void); 194void addr_cleanup(void); 195 196int ib_mad_init(void); 197void ib_mad_cleanup(void); 198 199int ib_sa_init(void); 200void ib_sa_cleanup(void); 201 202void rdma_nl_init(void); 203void rdma_nl_exit(void); 204 205int ib_nl_handle_resolve_resp(struct sk_buff *skb, 206 struct nlmsghdr *nlh, 207 struct netlink_ext_ack *extack); 208int ib_nl_handle_set_timeout(struct sk_buff *skb, 209 struct nlmsghdr *nlh, 210 struct netlink_ext_ack *extack); 211int ib_nl_handle_ip_res_resp(struct sk_buff *skb, 212 struct nlmsghdr *nlh, 213 struct netlink_ext_ack *extack); 214 215void ib_get_cached_subnet_prefix(struct ib_device *device, 216 u32 port_num, 217 u64 *sn_pfx); 218 219#ifdef CONFIG_SECURITY_INFINIBAND 220void ib_security_release_port_pkey_list(struct ib_device *device); 221 222void ib_security_cache_change(struct ib_device *device, 223 u32 port_num, 224 u64 subnet_prefix); 225 226int ib_security_modify_qp(struct ib_qp *qp, 227 struct ib_qp_attr *qp_attr, 228 int qp_attr_mask, 229 struct ib_udata *udata); 230 231int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev); 232void ib_destroy_qp_security_begin(struct ib_qp_security *sec); 233void ib_destroy_qp_security_abort(struct ib_qp_security *sec); 234void ib_destroy_qp_security_end(struct ib_qp_security *sec); 235int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev); 236void ib_close_shared_qp_security(struct ib_qp_security *sec); 237int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 238 enum ib_qp_type qp_type); 239void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent); 240int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index); 241void ib_mad_agent_security_change(void); 242#else 243static inline void ib_security_release_port_pkey_list(struct ib_device *device) 244{ 245} 246 247static inline void ib_security_cache_change(struct ib_device *device, 248 u32 port_num, 249 u64 subnet_prefix) 250{ 251} 252 253static inline int ib_security_modify_qp(struct ib_qp *qp, 254 struct ib_qp_attr *qp_attr, 255 int qp_attr_mask, 256 struct ib_udata *udata) 257{ 258 return qp->device->ops.modify_qp(qp->real_qp, 259 qp_attr, 260 qp_attr_mask, 261 udata); 262} 263 264static inline int ib_create_qp_security(struct ib_qp *qp, 265 struct ib_device *dev) 266{ 267 return 0; 268} 269 270static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec) 271{ 272} 273 274static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec) 275{ 276} 277 278static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec) 279{ 280} 281 282static inline int ib_open_shared_qp_security(struct ib_qp *qp, 283 struct ib_device *dev) 284{ 285 return 0; 286} 287 288static inline void ib_close_shared_qp_security(struct ib_qp_security *sec) 289{ 290} 291 292static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent, 293 enum ib_qp_type qp_type) 294{ 295 return 0; 296} 297 298static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent) 299{ 300} 301 302static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map, 303 u16 pkey_index) 304{ 305 return 0; 306} 307 308static inline void ib_mad_agent_security_change(void) 309{ 310} 311#endif 312 313struct ib_device *ib_device_get_by_index(const struct net *net, u32 index); 314 315/* RDMA device netlink */ 316void nldev_init(void); 317void nldev_exit(void); 318 319struct ib_qp *ib_create_qp_user(struct ib_device *dev, struct ib_pd *pd, 320 struct ib_qp_init_attr *attr, 321 struct ib_udata *udata, 322 struct ib_uqp_object *uobj, const char *caller); 323 324void ib_qp_usecnt_inc(struct ib_qp *qp); 325void ib_qp_usecnt_dec(struct ib_qp *qp); 326 327struct rdma_dev_addr; 328int rdma_resolve_ip_route(struct sockaddr *src_addr, 329 const struct sockaddr *dst_addr, 330 struct rdma_dev_addr *addr); 331 332int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid, 333 const union ib_gid *dgid, 334 u8 *dmac, const struct ib_gid_attr *sgid_attr, 335 int *hoplimit); 336void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr, 337 const struct net_device *dev); 338 339struct sa_path_rec; 340int roce_resolve_route_from_path(struct sa_path_rec *rec, 341 const struct ib_gid_attr *attr); 342 343struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr); 344 345void ib_free_port_attrs(struct ib_core_device *coredev); 346int ib_setup_port_attrs(struct ib_core_device *coredev); 347struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev, u32 port_num); 348void ib_device_release_hw_stats(struct hw_stats_device_data *data); 349int ib_setup_device_attrs(struct ib_device *ibdev); 350 351int rdma_compatdev_set(u8 enable); 352 353int ib_port_register_client_groups(struct ib_device *ibdev, u32 port_num, 354 const struct attribute_group **groups); 355void ib_port_unregister_client_groups(struct ib_device *ibdev, u32 port_num, 356 const struct attribute_group **groups); 357 358int ib_device_set_netns_put(struct sk_buff *skb, 359 struct ib_device *dev, u32 ns_fd); 360 361int rdma_nl_net_init(struct rdma_dev_net *rnet); 362void rdma_nl_net_exit(struct rdma_dev_net *rnet); 363 364struct rdma_umap_priv { 365 struct vm_area_struct *vma; 366 struct list_head list; 367 struct rdma_user_mmap_entry *entry; 368}; 369 370void rdma_umap_priv_init(struct rdma_umap_priv *priv, 371 struct vm_area_struct *vma, 372 struct rdma_user_mmap_entry *entry); 373 374void ib_cq_pool_cleanup(struct ib_device *dev); 375 376bool rdma_nl_get_privileged_qkey(void); 377#endif /* _CORE_PRIV_H */ 378