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1/*
2 * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved.
3 * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 *
33 */
34
35#ifndef NES_VERBS_H
36#define NES_VERBS_H
37
38struct nes_device;
39
40#define NES_MAX_USER_DB_REGIONS 4096
41#define NES_MAX_USER_WQ_REGIONS 4096
42
43struct nes_ucontext {
44 struct ib_ucontext ibucontext;
45 struct nes_device *nesdev;
46 unsigned long mmap_wq_offset;
47 unsigned long mmap_cq_offset; /* to be removed */
48 int index; /* rnic index (minor) */
49 unsigned long allocated_doorbells[BITS_TO_LONGS(NES_MAX_USER_DB_REGIONS)];
50 u16 mmap_db_index[NES_MAX_USER_DB_REGIONS];
51 u16 first_free_db;
52 unsigned long allocated_wqs[BITS_TO_LONGS(NES_MAX_USER_WQ_REGIONS)];
53 struct nes_qp *mmap_nesqp[NES_MAX_USER_WQ_REGIONS];
54 u16 first_free_wq;
55 struct list_head cq_reg_mem_list;
56 struct list_head qp_reg_mem_list;
57 u32 mcrqf;
58 atomic_t usecnt;
59};
60
61struct nes_pd {
62 struct ib_pd ibpd;
63 u16 pd_id;
64 atomic_t sqp_count;
65 u16 mmap_db_index;
66};
67
68struct nes_mr {
69 union {
70 struct ib_mr ibmr;
71 struct ib_mw ibmw;
72 struct ib_fmr ibfmr;
73 };
74 struct ib_umem *region;
75 u16 pbls_used;
76 u8 mode;
77 u8 pbl_4k;
78};
79
80struct nes_hw_pb {
81 __le32 pa_low;
82 __le32 pa_high;
83};
84
85struct nes_vpbl {
86 dma_addr_t pbl_pbase;
87 struct nes_hw_pb *pbl_vbase;
88};
89
90struct nes_root_vpbl {
91 dma_addr_t pbl_pbase;
92 struct nes_hw_pb *pbl_vbase;
93 struct nes_vpbl *leaf_vpbl;
94};
95
96struct nes_fmr {
97 struct nes_mr nesmr;
98 u32 leaf_pbl_cnt;
99 struct nes_root_vpbl root_vpbl;
100 struct ib_qp *ib_qp;
101 int access_rights;
102 struct ib_fmr_attr attr;
103};
104
105struct nes_av;
106
107struct nes_cq {
108 struct ib_cq ibcq;
109 struct nes_hw_cq hw_cq;
110 u32 polled_completions;
111 u32 cq_mem_size;
112 spinlock_t lock;
113 u8 virtual_cq;
114 u8 pad[3];
115};
116
117struct nes_wq {
118 spinlock_t lock;
119};
120
121struct iw_cm_id;
122struct ietf_mpa_frame;
123
124struct nes_qp {
125 struct ib_qp ibqp;
126 void *allocated_buffer;
127 struct iw_cm_id *cm_id;
128 struct workqueue_struct *wq;
129 struct work_struct disconn_work;
130 struct nes_cq *nesscq;
131 struct nes_cq *nesrcq;
132 struct nes_pd *nespd;
133 void *cm_node; /* handle of the node this QP is associated with */
134 struct ietf_mpa_frame *ietf_frame;
135 dma_addr_t ietf_frame_pbase;
136 wait_queue_head_t state_waitq;
137 unsigned long socket;
138 struct nes_hw_qp hwqp;
139 struct work_struct work;
140 struct work_struct ae_work;
141 enum ib_qp_state ibqp_state;
142 u32 iwarp_state;
143 u32 hte_index;
144 u32 last_aeq;
145 u32 qp_mem_size;
146 atomic_t refcount;
147 atomic_t close_timer_started;
148 u32 mmap_sq_db_index;
149 u32 mmap_rq_db_index;
150 spinlock_t lock;
151 struct nes_qp_context *nesqp_context;
152 dma_addr_t nesqp_context_pbase;
153 void *pbl_vbase;
154 dma_addr_t pbl_pbase;
155 struct page *page;
156 wait_queue_head_t kick_waitq;
157 u16 in_disconnect;
158 u16 private_data_len;
159 u8 active_conn;
160 u8 skip_lsmm;
161 u8 user_mode;
162 u8 hte_added;
163 u8 hw_iwarp_state;
164 u8 flush_issued;
165 u8 hw_tcp_state;
166 u8 disconn_pending;
167 u8 destroyed;
168};
169#endif /* NES_VERBS_H */
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