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1/*2 * Copyright (c) 2004 Topspin Communications. All rights reserved.3 *4 * This software is available to you under a choice of one of two5 * licenses. You may choose to be licensed under the terms of the GNU6 * General Public License (GPL) Version 2, available from the file7 * COPYING in the main directory of this source tree, or the8 * OpenIB.org BSD license below:9 *10 * Redistribution and use in source and binary forms, with or11 * without modification, are permitted provided that the following12 * conditions are met:13 *14 * - Redistributions of source code must retain the above15 * copyright notice, this list of conditions and the following16 * disclaimer.17 *18 * - Redistributions in binary form must reproduce the above19 * copyright notice, this list of conditions and the following20 * disclaimer in the documentation and/or other materials21 * 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 OF25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE30 * SOFTWARE.31 */32 33#ifndef _CORE_PRIV_H34#define _CORE_PRIV_H35 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 819251 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 net62 * @nl_sock: Pointer to netlink socket63 * @net: Pointer to owner net namespace64 * @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_DELETE123};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_RDMA154void 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#else165static 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#endif186 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_INFINIBAND220void 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#else243static 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#endif312 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;328 329int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,330 const union ib_gid *dgid,331 u8 *dmac, const struct ib_gid_attr *sgid_attr,332 int *hoplimit);333void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr,334 const struct net_device *dev);335 336struct sa_path_rec;337int roce_resolve_route_from_path(struct sa_path_rec *rec,338 const struct ib_gid_attr *attr);339 340struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);341 342void ib_free_port_attrs(struct ib_core_device *coredev);343int ib_setup_port_attrs(struct ib_core_device *coredev);344struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev, u32 port_num);345void ib_device_release_hw_stats(struct hw_stats_device_data *data);346int ib_setup_device_attrs(struct ib_device *ibdev);347 348int rdma_compatdev_set(u8 enable);349 350int ib_port_register_client_groups(struct ib_device *ibdev, u32 port_num,351 const struct attribute_group **groups);352void ib_port_unregister_client_groups(struct ib_device *ibdev, u32 port_num,353 const struct attribute_group **groups);354 355int ib_device_set_netns_put(struct sk_buff *skb,356 struct ib_device *dev, u32 ns_fd);357 358int rdma_nl_net_init(struct rdma_dev_net *rnet);359void rdma_nl_net_exit(struct rdma_dev_net *rnet);360 361struct rdma_umap_priv {362 struct vm_area_struct *vma;363 struct list_head list;364 struct rdma_user_mmap_entry *entry;365};366 367void rdma_umap_priv_init(struct rdma_umap_priv *priv,368 struct vm_area_struct *vma,369 struct rdma_user_mmap_entry *entry);370 371void ib_cq_pool_cleanup(struct ib_device *dev);372 373bool rdma_nl_get_privileged_qkey(void);374#endif /* _CORE_PRIV_H */375