Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
[linux-2.6] / drivers / infiniband / hw / nes / nes_verbs.h
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
38 struct nes_device;
39
40 #define NES_MAX_USER_DB_REGIONS  4096
41 #define NES_MAX_USER_WQ_REGIONS  4096
42
43 struct 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
61 struct nes_pd {
62         struct ib_pd ibpd;
63         u16          pd_id;
64         atomic_t     sqp_count;
65         u16          mmap_db_index;
66 };
67
68 struct 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
80 struct nes_hw_pb {
81         __le32 pa_low;
82         __le32 pa_high;
83 };
84
85 struct nes_vpbl {
86         dma_addr_t       pbl_pbase;
87         struct nes_hw_pb *pbl_vbase;
88 };
89
90 struct nes_root_vpbl {
91         dma_addr_t       pbl_pbase;
92         struct nes_hw_pb *pbl_vbase;
93         struct nes_vpbl  *leaf_vpbl;
94 };
95
96 struct 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
105 struct nes_av;
106
107 struct 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
117 struct nes_wq {
118         spinlock_t lock;
119 };
120
121 struct iw_cm_id;
122 struct ietf_mpa_frame;
123
124 struct 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 */