mirror of
https://github.com/torvalds/linux
synced 2024-10-25 20:59:03 +00:00
ae43f82867
There is an assumption that rdmacm is used only between nodes in the same IB subnet, this why ARP resolution can be used to turn IP to GID in rdmacm. When dealing with IB communication between subnets this assumption is no longer valid. ARP resolution will get us the next hop device address and not the peer node's device address. To solve this issue, we will check user space if it can provide the GID of the peer node, and fail if not. We add a sequence number to identify each request and fill in the GID upon answer from userspace. Signed-off-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
157 lines
4.9 KiB
C
157 lines
4.9 KiB
C
/*
|
|
* 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 <rdma/ib_verbs.h>
|
|
|
|
#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);
|
|
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);
|
|
|
|
void ib_cache_setup(void);
|
|
void ib_cache_cleanup(void);
|
|
|
|
int ib_resolve_eth_dmac(struct ib_qp *qp,
|
|
struct ib_qp_attr *qp_attr, int *qp_attr_mask);
|
|
|
|
typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
|
|
struct net_device *idev, void *cookie);
|
|
|
|
typedef int (*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);
|
|
|
|
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);
|
|
|
|
int roce_rescan_device(struct ib_device *ib_dev);
|
|
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);
|
|
|
|
static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
|
|
struct net_device *upper)
|
|
{
|
|
struct net_device *_upper = NULL;
|
|
struct list_head *iter;
|
|
|
|
netdev_for_each_all_upper_dev_rcu(dev, _upper, iter)
|
|
if (_upper == upper)
|
|
break;
|
|
|
|
return _upper == 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 ib_nl_handle_resolve_resp(struct sk_buff *skb,
|
|
struct netlink_callback *cb);
|
|
int ib_nl_handle_set_timeout(struct sk_buff *skb,
|
|
struct netlink_callback *cb);
|
|
int ib_nl_handle_ip_res_resp(struct sk_buff *skb,
|
|
struct netlink_callback *cb);
|
|
|
|
#endif /* _CORE_PRIV_H */
|