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Add to the cma, a tree that keeps track of all rdma_id_private channels that were created while in RoCE mode. The IDs are sorted first according to their netdevice ifindex then their destination IP. And for IDs with matching IP they would be at the same node in the tree, since the tree data is a list of all ids with matching destination IP. The tree allows fast and efficient lookup of ids using an ifindex and IP address which is useful for identifying relevant net_events promptly. Link: https://lore.kernel.org/r/2fac52c86cc918c634ab24b3867d4aed992f54ec.1654601342.git.leonro@nvidia.com Signed-off-by: Patrisious Haddad <phaddad@nvidia.com> Reviewed-by: Mark Zhang <markzhang@nvidia.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
140 lines
3.9 KiB
C
140 lines
3.9 KiB
C
/*
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* Copyright (c) 2005 Voltaire Inc. All rights reserved.
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* Copyright (c) 2002-2005, Network Appliance, Inc. All rights reserved.
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* Copyright (c) 1999-2005, Mellanox Technologies, Inc. All rights reserved.
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* Copyright (c) 2005-2006 Intel Corporation. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _CMA_PRIV_H
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#define _CMA_PRIV_H
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enum rdma_cm_state {
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RDMA_CM_IDLE,
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RDMA_CM_ADDR_QUERY,
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RDMA_CM_ADDR_RESOLVED,
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RDMA_CM_ROUTE_QUERY,
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RDMA_CM_ROUTE_RESOLVED,
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RDMA_CM_CONNECT,
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RDMA_CM_DISCONNECT,
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RDMA_CM_ADDR_BOUND,
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RDMA_CM_LISTEN,
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RDMA_CM_DEVICE_REMOVAL,
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RDMA_CM_DESTROYING
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};
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struct rdma_id_private {
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struct rdma_cm_id id;
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struct rdma_bind_list *bind_list;
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struct hlist_node node;
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union {
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struct list_head device_item; /* On cma_device->id_list */
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struct list_head listen_any_item; /* On listen_any_list */
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};
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union {
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/* On rdma_id_private->listen_list */
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struct list_head listen_item;
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struct list_head listen_list;
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};
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struct list_head id_list_entry;
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struct cma_device *cma_dev;
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struct list_head mc_list;
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int internal_id;
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enum rdma_cm_state state;
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spinlock_t lock;
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struct mutex qp_mutex;
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struct completion comp;
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refcount_t refcount;
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struct mutex handler_mutex;
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int backlog;
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int timeout_ms;
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struct ib_sa_query *query;
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int query_id;
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union {
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struct ib_cm_id *ib;
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struct iw_cm_id *iw;
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} cm_id;
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u32 seq_num;
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u32 qkey;
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u32 qp_num;
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u32 options;
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u8 srq;
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u8 tos;
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u8 tos_set:1;
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u8 timeout_set:1;
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u8 min_rnr_timer_set:1;
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u8 reuseaddr;
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u8 afonly;
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u8 timeout;
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u8 min_rnr_timer;
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u8 used_resolve_ip;
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enum ib_gid_type gid_type;
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/*
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* Internal to RDMA/core, don't use in the drivers
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*/
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struct rdma_restrack_entry res;
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struct rdma_ucm_ece ece;
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};
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#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
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int cma_configfs_init(void);
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void cma_configfs_exit(void);
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#else
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static inline int cma_configfs_init(void)
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{
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return 0;
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}
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static inline void cma_configfs_exit(void)
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{
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}
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#endif
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void cma_dev_get(struct cma_device *dev);
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void cma_dev_put(struct cma_device *dev);
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typedef bool (*cma_device_filter)(struct ib_device *, void *);
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struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
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void *cookie);
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int cma_get_default_gid_type(struct cma_device *dev, u32 port);
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int cma_set_default_gid_type(struct cma_device *dev, u32 port,
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enum ib_gid_type default_gid_type);
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int cma_get_default_roce_tos(struct cma_device *dev, u32 port);
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int cma_set_default_roce_tos(struct cma_device *dev, u32 port,
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u8 default_roce_tos);
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struct ib_device *cma_get_ib_dev(struct cma_device *dev);
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#endif /* _CMA_PRIV_H */
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