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nes_verbs.h
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1 /*
2  * Copyright (c) 2006 - 2011 Intel Corporation. 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
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31  * SOFTWARE.
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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 #define NES_TERM_SENT 0x01
44 #define NES_TERM_RCVD 0x02
45 #define NES_TERM_DONE 0x04
46 
47 struct nes_ucontext {
48  struct ib_ucontext ibucontext;
49  struct nes_device *nesdev;
50  unsigned long mmap_wq_offset;
51  unsigned long mmap_cq_offset; /* to be removed */
52  int index; /* rnic index (minor) */
53  unsigned long allocated_doorbells[BITS_TO_LONGS(NES_MAX_USER_DB_REGIONS)];
54  u16 mmap_db_index[NES_MAX_USER_DB_REGIONS];
55  u16 first_free_db;
56  unsigned long allocated_wqs[BITS_TO_LONGS(NES_MAX_USER_WQ_REGIONS)];
57  struct nes_qp *mmap_nesqp[NES_MAX_USER_WQ_REGIONS];
58  u16 first_free_wq;
59  struct list_head cq_reg_mem_list;
60  struct list_head qp_reg_mem_list;
61  u32 mcrqf;
62  atomic_t usecnt;
63 };
64 
65 struct nes_pd {
66  struct ib_pd ibpd;
67  u16 pd_id;
68  atomic_t sqp_count;
69  u16 mmap_db_index;
70 };
71 
72 struct nes_mr {
73  union {
74  struct ib_mr ibmr;
75  struct ib_mw ibmw;
76  struct ib_fmr ibfmr;
77  };
78  struct ib_umem *region;
79  u16 pbls_used;
80  u8 mode;
81  u8 pbl_4k;
82 };
83 
84 struct nes_hw_pb {
85  __le32 pa_low;
86  __le32 pa_high;
87 };
88 
89 struct nes_vpbl {
90  dma_addr_t pbl_pbase;
91  struct nes_hw_pb *pbl_vbase;
92 };
93 
94 struct nes_root_vpbl {
95  dma_addr_t pbl_pbase;
96  struct nes_hw_pb *pbl_vbase;
97  struct nes_vpbl *leaf_vpbl;
98 };
99 
100 struct nes_fmr {
101  struct nes_mr nesmr;
102  u32 leaf_pbl_cnt;
103  struct nes_root_vpbl root_vpbl;
104  struct ib_qp *ib_qp;
105  int access_rights;
106  struct ib_fmr_attr attr;
107 };
108 
109 struct nes_av;
110 
111 struct nes_cq {
112  struct ib_cq ibcq;
113  struct nes_hw_cq hw_cq;
114  u32 polled_completions;
115  u32 cq_mem_size;
116  spinlock_t lock;
117  u8 virtual_cq;
118  u8 pad[3];
119  u32 mcrqf;
120 };
121 
122 struct nes_wq {
123  spinlock_t lock;
124 };
125 
126 struct disconn_work {
127  struct work_struct work;
128  struct nes_qp *nesqp;
129 };
130 
131 struct iw_cm_id;
132 struct ietf_mpa_frame;
133 
134 struct nes_qp {
135  struct ib_qp ibqp;
136  void *allocated_buffer;
137  struct iw_cm_id *cm_id;
138  struct nes_cq *nesscq;
139  struct nes_cq *nesrcq;
140  struct nes_pd *nespd;
141  void *cm_node; /* handle of the node this QP is associated with */
142  void *ietf_frame;
143  u8 ietf_frame_size;
144  dma_addr_t ietf_frame_pbase;
145  struct ib_mr *lsmm_mr;
146  struct nes_hw_qp hwqp;
147  struct work_struct work;
148  enum ib_qp_state ibqp_state;
149  u32 iwarp_state;
150  u32 hte_index;
151  u32 last_aeq;
152  u32 qp_mem_size;
153  atomic_t refcount;
154  atomic_t close_timer_started;
155  u32 mmap_sq_db_index;
156  u32 mmap_rq_db_index;
157  spinlock_t lock;
158  spinlock_t pau_lock;
159  struct nes_qp_context *nesqp_context;
160  dma_addr_t nesqp_context_pbase;
161  void *pbl_vbase;
162  dma_addr_t pbl_pbase;
163  struct page *page;
164  struct timer_list terminate_timer;
165  enum ib_event_type terminate_eventtype;
166  struct sk_buff_head pau_list;
167  u32 pau_rcv_nxt;
168  u16 active_conn:1;
169  u16 skip_lsmm:1;
170  u16 user_mode:1;
171  u16 hte_added:1;
172  u16 flush_issued:1;
173  u16 destroyed:1;
174  u16 sig_all:1;
175  u16 pau_mode:1;
176  u16 rsvd:8;
177  u16 private_data_len;
178  u16 term_sq_flush_code;
179  u16 term_rq_flush_code;
180  u8 hw_iwarp_state;
181  u8 hw_tcp_state;
182  u8 term_flags;
183  u8 sq_kmapped;
184  u8 pau_busy;
185  u8 pau_pending;
186  u8 pau_state;
187 };
188 #endif /* NES_VERBS_H */
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