1/*
2 * Copyright (c) 2013, Cisco Systems, Inc. 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 * 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
34#ifndef USNIC_IB_QP_GRP_H_
35#define USNIC_IB_QP_GRP_H_
36
37#include <linux/debugfs.h>
38#include <rdma/ib_verbs.h>
39
40#include "usnic_ib.h"
41#include "usnic_abi.h"
42#include "usnic_fwd.h"
43#include "usnic_vnic.h"
44
45/*
46 * The qp group struct represents all the hw resources needed to present a ib_qp
47 */
48struct usnic_ib_qp_grp {
49	struct ib_qp				ibqp;
50	enum ib_qp_state			state;
51	int					grp_id;
52
53	struct usnic_fwd_dev			*ufdev;
54	struct usnic_ib_ucontext		*ctx;
55	struct list_head			flows_lst;
56
57	struct usnic_vnic_res_chunk		**res_chunk_list;
58
59	pid_t					owner_pid;
60	struct usnic_ib_vf			*vf;
61	struct list_head			link;
62
63	spinlock_t				lock;
64
65	struct kobject				kobj;
66};
67
68struct usnic_ib_qp_grp_flow {
69	struct usnic_fwd_flow		*flow;
70	enum usnic_transport_type	trans_type;
71	union {
72		struct {
73			uint16_t	port_num;
74		} usnic_roce;
75		struct {
76			struct socket	*sock;
77		} udp;
78	};
79	struct usnic_ib_qp_grp		*qp_grp;
80	struct list_head		link;
81
82	/* Debug FS */
83	struct dentry			*dbgfs_dentry;
84	char				dentry_name[32];
85};
86
87extern const struct usnic_vnic_res_spec min_transport_spec[USNIC_TRANSPORT_MAX];
88
89const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state);
90int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz);
91int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz);
92int usnic_ib_qp_grp_create(struct usnic_ib_qp_grp *qp,
93			   struct usnic_fwd_dev *ufdev, struct usnic_ib_vf *vf,
94			   struct usnic_ib_pd *pd,
95			   struct usnic_vnic_res_spec *res_spec,
96			   struct usnic_transport_spec *trans_spec);
97void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp);
98int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp,
99				enum ib_qp_state new_state,
100				void *data);
101struct usnic_vnic_res_chunk
102*usnic_ib_qp_grp_get_chunk(struct usnic_ib_qp_grp *qp_grp,
103				enum usnic_vnic_res_type type);
104static inline
105struct usnic_ib_qp_grp *to_uqp_grp(struct ib_qp *ibqp)
106{
107	return container_of(ibqp, struct usnic_ib_qp_grp, ibqp);
108}
109#endif /* USNIC_IB_QP_GRP_H_ */
110