/*
* Copyright (c) 2004 Topspin Communications. 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.
*/
#ifndef _CORE_PRIV_H
#define _CORE_PRIV_H
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/cgroup_rdma.h>
#include <rdma/ib_verbs.h>
#include <rdma/opa_addr.h>
#include <rdma/ib_mad.h>
#include <rdma/restrack.h>
#include "mad_priv.h"
/* Total number of ports combined across all struct ib_devices's */
#define RDMA_MAX_PORTS 1024
struct pkey_index_qp_list {
struct list_head pkey_index_list;
u16 pkey_index;
/* Lock to hold while iterating the qp_list. */
spinlock_t qp_list_lock;
struct list_head qp_list;
};
#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
int cma_configfs_init(void);
void cma_configfs_exit(void);
#else
static inline int cma_configfs_init(void)
{
return 0;
}
static inline void cma_configfs_exit(void)
{
}
#endif
struct cma_device;
void cma_ref_dev(struct cma_device *cma_dev);
void cma_deref_dev(struct cma_device *cma_dev);
typedef bool (*cma_device_filter)(struct ib_device *, void *);
struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
void *cookie);
int cma_get_default_gid_type(struct cma_device *cma_dev,
unsigned int port);
int cma_set_default_gid_type(struct cma_device *cma_dev,
unsigned int port,
enum ib_gid_type default_gid_type);
int cma_get_default_roce_tos(struct cma_device *cma_dev, unsigned int port);
int cma_set_default_roce_tos(struct cma_device *a_dev, unsigned int port,
u8 default_roce_tos);
struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev);
int ib_device_register_sysfs(struct ib_device *device,
int (*port_callback)(struct ib_device *,
u8, struct kobject *));
void ib_device_unregister_sysfs(struct ib_device *device);
int ib_device_rename(struct ib_device *ibdev, const char *name);
typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
struct net_device *idev, void *cookie);
typedef bool (*roce_netdev_filter)(struct ib_device *device, u8 port,
struct net_device *idev, void *cookie);
void ib_enum_roce_netdev(struct ib_device *ib_dev,
roce_netdev_filter filter,
void *filter_cookie,
roce_netdev_callback cb,
void *cookie);
void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
void *filter_cookie,
roce_netdev_callback cb,
void *cookie);
typedef int (*nldev_callback)(struct ib_device *device,
struct sk_buff *skb,
struct netlink_callback *cb,
unsigned int idx);
int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
struct netlink_callback *cb);
enum ib_cache_gid_default_mode {
IB_CACHE_GID_DEFAULT_MODE_SET,
IB_CACHE_GID_DEFAULT_MODE_DELETE
};
int ib_cache_gid_parse_type_str(const char *buf);
const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
struct net_device *ndev,
unsigned long gid_type_mask,
enum ib_cache_gid_default_mode mode);
int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
union ib_gid *gid, struct ib_gid_attr *attr);
int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
union ib_gid *gid, struct ib_gid_attr *attr);
int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
struct net_device *ndev);
int roce_gid_mgmt_init(void);
void roce_gid_mgmt_cleanup(void);
unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
int ib_cache_setup_one(struct ib_device *device);
void ib_cache_cleanup_one(struct ib_device *device);
void ib_cache_release_one(struct ib_device *device);
#ifdef CONFIG_CGROUP_RDMA
int ib_device_register_rdmacg(struct ib_device *device);
void ib_device_unregister_rdmacg(struct ib_device *device);
int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
struct ib_device *device,
enum rdmacg_resource_type resource_index);
void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
struct ib_device *device,
enum rdmacg_resource_type resource_index);
#else
static inline int ib_device_register_rdmacg(struct ib_device *device)
{ return 0; }
static inline void ib_device_unregister_rdmacg(struct ib_device *device)
{ }
static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj,
struct ib_device *device,
enum rdmacg_resource_type resource_index)
{ return 0; }
static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj,
struct ib_device *device,
enum rdmacg_resource_type resource_index)
{ }
#endif
static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
struct net_device *upper)
{
return netdev_has_upper_dev_all_rcu(dev, upper);
}
int addr_init(void);
void addr_cleanup(void);
int ib_mad_init(void);
void ib_mad_cleanup(void);
int ib_sa_init(void);
void ib_sa_cleanup(void);
int rdma_nl_init(void);
void rdma_nl_exit(void);
int ib_nl_handle_resolve_resp(struct sk_buff *skb,
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack);
int ib_nl_handle_set_timeout(struct sk_buff *skb,
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack);
int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
struct nlmsghdr *nlh,
struct netlink_ext_ack *extack);
int ib_get_cached_subnet_prefix(struct ib_device *device,
u8 port_num,
u64 *sn_pfx);
#ifdef CONFIG_SECURITY_INFINIBAND
void ib_security_destroy_port_pkey_list(struct ib_device *device);
void ib_security_cache_change(struct ib_device *device,
u8 port_num,
u64 subnet_prefix);
int ib_security_modify_qp(struct ib_qp *qp,
struct ib_qp_attr *qp_attr,
int qp_attr_mask,
struct ib_udata *udata);
int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev);
void ib_destroy_qp_security_begin(struct ib_qp_security *sec);
void ib_destroy_qp_security_abort(struct ib_qp_security *sec);
void ib_destroy_qp_security_end(struct ib_qp_security *sec);
int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev);
void ib_close_shared_qp_security(struct ib_qp_security *sec);
int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
enum ib_qp_type qp_type);
void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent);
int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index);
#else
static inline void ib_security_destroy_port_pkey_list(struct ib_device *device)
{
}
static inline void ib_security_cache_change(struct ib_device *device,
u8 port_num,
u64 subnet_prefix)
{
}
static inline int ib_security_modify_qp(struct ib_qp *qp,
struct ib_qp_attr *qp_attr,
int qp_attr_mask,
struct ib_udata *udata)
{
return qp->device->modify_qp(qp->real_qp,
qp_attr,
qp_attr_mask,
udata);
}
static inline int ib_create_qp_security(struct ib_qp *qp,
struct ib_device *dev)
{
return 0;
}
static inline void ib_destroy_qp_security_begin(struct ib_qp_security *sec)
{
}
static inline void ib_destroy_qp_security_abort(struct ib_qp_security *sec)
{
}
static inline void ib_destroy_qp_security_end(struct ib_qp_security *sec)
{
}
static inline int ib_open_shared_qp_security(struct ib_qp *qp,
struct ib_device *dev)
{
return 0;
}
static inline void ib_close_shared_qp_security(struct ib_qp_security *sec)
{
}
static inline int ib_mad_agent_security_setup(struct ib_mad_agent *agent,
enum ib_qp_type qp_type)
{
return 0;
}
static inline void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent)
{
}
static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map,
u16 pkey_index)
{
return 0;
}
#endif
struct ib_device *ib_device_get_by_index(u32 ifindex);
/* RDMA device netlink */
void nldev_init(void);
void nldev_exit(void);
static inline struct ib_qp *_ib_create_qp(struct ib_device *dev,
struct ib_pd *pd,
struct ib_qp_init_attr *attr,
struct ib_udata *udata,
struct ib_uobject *uobj)
{
struct ib_qp *qp;
if (!dev->create_qp)
return ERR_PTR(-EOPNOTSUPP);
qp = dev->create_qp(pd, attr, udata);
if (IS_ERR(qp))
return qp;
qp->device = dev;
qp->pd = pd;
qp->uobject = uobj;
/*
* We don't track XRC QPs for now, because they don't have PD
* and more importantly they are created internaly by driver,
* see mlx5 create_dev_resources() as an example.
*/
if (attr->qp_type < IB_QPT_XRC_INI) {
qp->res.type = RDMA_RESTRACK_QP;
rdma_restrack_add(&qp->res);
} else
qp->res.valid = false;
return qp;
}
struct rdma_dev_addr;
int rdma_resolve_ip_route(struct sockaddr *src_addr,
const struct sockaddr *dst_addr,
struct rdma_dev_addr *addr);
int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
const union ib_gid *dgid,
u8 *dmac, const struct ib_gid_attr *sgid_attr,
int *hoplimit);
void rdma_copy_src_l2_addr(struct rdma_dev_addr *dev_addr,
const struct net_device *dev);
struct sa_path_rec;
int roce_resolve_route_from_path(struct sa_path_rec *rec,
const struct ib_gid_attr *attr);
struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);
#endif /* _CORE_PRIV_H */
