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 */
48 struct 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
68 struct 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
87 extern const struct usnic_vnic_res_spec min_transport_spec[USNIC_TRANSPORT_MAX];
88
89 const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state);
90 int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz);
91 int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz);
92 struct usnic_ib_qp_grp *
93 usnic_ib_qp_grp_create(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);
97 void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp);
98 int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp,
99 enum ib_qp_state new_state,
100 void *data);
101 struct 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);
104 static inline
to_uqp_grp(struct ib_qp * ibqp)105 struct 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