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1 | /* |
2 | * Copyright (c) 2006, 2007 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 | * OpenIB.org 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 | #ifndef MLX4_DEVICE_H | |
34 | #define MLX4_DEVICE_H | |
35 | ||
36 | #include <linux/pci.h> | |
37 | #include <linux/completion.h> | |
38 | #include <linux/radix-tree.h> | |
39 | ||
40 | #include <asm/atomic.h> | |
41 | ||
42 | enum { | |
43 | MLX4_FLAG_MSI_X = 1 << 0, | |
44 | }; | |
45 | ||
46 | enum { | |
47 | MLX4_MAX_PORTS = 2 | |
48 | }; | |
49 | ||
50 | enum { | |
51 | MLX4_DEV_CAP_FLAG_RC = 1 << 0, | |
52 | MLX4_DEV_CAP_FLAG_UC = 1 << 1, | |
53 | MLX4_DEV_CAP_FLAG_UD = 1 << 2, | |
54 | MLX4_DEV_CAP_FLAG_SRQ = 1 << 6, | |
55 | MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7, | |
56 | MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8, | |
57 | MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9, | |
58 | MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16, | |
59 | MLX4_DEV_CAP_FLAG_APM = 1 << 17, | |
60 | MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18, | |
61 | MLX4_DEV_CAP_FLAG_RAW_MCAST = 1 << 19, | |
62 | MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1 << 20, | |
63 | MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21 | |
64 | }; | |
65 | ||
66 | enum mlx4_event { | |
67 | MLX4_EVENT_TYPE_COMP = 0x00, | |
68 | MLX4_EVENT_TYPE_PATH_MIG = 0x01, | |
69 | MLX4_EVENT_TYPE_COMM_EST = 0x02, | |
70 | MLX4_EVENT_TYPE_SQ_DRAINED = 0x03, | |
71 | MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13, | |
72 | MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14, | |
73 | MLX4_EVENT_TYPE_CQ_ERROR = 0x04, | |
74 | MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05, | |
75 | MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06, | |
76 | MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07, | |
77 | MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10, | |
78 | MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11, | |
79 | MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12, | |
80 | MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08, | |
81 | MLX4_EVENT_TYPE_PORT_CHANGE = 0x09, | |
82 | MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f, | |
83 | MLX4_EVENT_TYPE_ECC_DETECT = 0x0e, | |
84 | MLX4_EVENT_TYPE_CMD = 0x0a | |
85 | }; | |
86 | ||
87 | enum { | |
88 | MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1, | |
89 | MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4 | |
90 | }; | |
91 | ||
92 | enum { | |
93 | MLX4_PERM_LOCAL_READ = 1 << 10, | |
94 | MLX4_PERM_LOCAL_WRITE = 1 << 11, | |
95 | MLX4_PERM_REMOTE_READ = 1 << 12, | |
96 | MLX4_PERM_REMOTE_WRITE = 1 << 13, | |
97 | MLX4_PERM_ATOMIC = 1 << 14 | |
98 | }; | |
99 | ||
100 | enum { | |
101 | MLX4_OPCODE_NOP = 0x00, | |
102 | MLX4_OPCODE_SEND_INVAL = 0x01, | |
103 | MLX4_OPCODE_RDMA_WRITE = 0x08, | |
104 | MLX4_OPCODE_RDMA_WRITE_IMM = 0x09, | |
105 | MLX4_OPCODE_SEND = 0x0a, | |
106 | MLX4_OPCODE_SEND_IMM = 0x0b, | |
107 | MLX4_OPCODE_LSO = 0x0e, | |
108 | MLX4_OPCODE_RDMA_READ = 0x10, | |
109 | MLX4_OPCODE_ATOMIC_CS = 0x11, | |
110 | MLX4_OPCODE_ATOMIC_FA = 0x12, | |
111 | MLX4_OPCODE_ATOMIC_MASK_CS = 0x14, | |
112 | MLX4_OPCODE_ATOMIC_MASK_FA = 0x15, | |
113 | MLX4_OPCODE_BIND_MW = 0x18, | |
114 | MLX4_OPCODE_FMR = 0x19, | |
115 | MLX4_OPCODE_LOCAL_INVAL = 0x1b, | |
116 | MLX4_OPCODE_CONFIG_CMD = 0x1f, | |
117 | ||
118 | MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00, | |
119 | MLX4_RECV_OPCODE_SEND = 0x01, | |
120 | MLX4_RECV_OPCODE_SEND_IMM = 0x02, | |
121 | MLX4_RECV_OPCODE_SEND_INVAL = 0x03, | |
122 | ||
123 | MLX4_CQE_OPCODE_ERROR = 0x1e, | |
124 | MLX4_CQE_OPCODE_RESIZE = 0x16, | |
125 | }; | |
126 | ||
127 | enum { | |
128 | MLX4_STAT_RATE_OFFSET = 5 | |
129 | }; | |
130 | ||
131 | struct mlx4_caps { | |
132 | u64 fw_ver; | |
133 | int num_ports; | |
134 | int vl_cap; | |
135 | int mtu_cap; | |
136 | int gid_table_len; | |
137 | int pkey_table_len; | |
138 | int local_ca_ack_delay; | |
139 | int num_uars; | |
140 | int bf_reg_size; | |
141 | int bf_regs_per_page; | |
142 | int max_sq_sg; | |
143 | int max_rq_sg; | |
144 | int num_qps; | |
145 | int max_wqes; | |
146 | int max_sq_desc_sz; | |
147 | int max_rq_desc_sz; | |
148 | int max_qp_init_rdma; | |
149 | int max_qp_dest_rdma; | |
150 | int reserved_qps; | |
151 | int sqp_start; | |
152 | int num_srqs; | |
153 | int max_srq_wqes; | |
154 | int max_srq_sge; | |
155 | int reserved_srqs; | |
156 | int num_cqs; | |
157 | int max_cqes; | |
158 | int reserved_cqs; | |
159 | int num_eqs; | |
160 | int reserved_eqs; | |
161 | int num_mpts; | |
162 | int num_mtt_segs; | |
163 | int fmr_reserved_mtts; | |
164 | int reserved_mtts; | |
165 | int reserved_mrws; | |
166 | int reserved_uars; | |
167 | int num_mgms; | |
168 | int num_amgms; | |
169 | int reserved_mcgs; | |
170 | int num_qp_per_mgm; | |
171 | int num_pds; | |
172 | int reserved_pds; | |
173 | int mtt_entry_sz; | |
174 | u32 page_size_cap; | |
175 | u32 flags; | |
176 | u16 stat_rate_support; | |
177 | u8 port_width_cap; | |
178 | }; | |
179 | ||
180 | struct mlx4_buf_list { | |
181 | void *buf; | |
182 | dma_addr_t map; | |
183 | }; | |
184 | ||
185 | struct mlx4_buf { | |
186 | union { | |
187 | struct mlx4_buf_list direct; | |
188 | struct mlx4_buf_list *page_list; | |
189 | } u; | |
190 | int nbufs; | |
191 | int npages; | |
192 | int page_shift; | |
193 | }; | |
194 | ||
195 | struct mlx4_mtt { | |
196 | u32 first_seg; | |
197 | int order; | |
198 | int page_shift; | |
199 | }; | |
200 | ||
201 | struct mlx4_mr { | |
202 | struct mlx4_mtt mtt; | |
203 | u64 iova; | |
204 | u64 size; | |
205 | u32 key; | |
206 | u32 pd; | |
207 | u32 access; | |
208 | int enabled; | |
209 | }; | |
210 | ||
211 | struct mlx4_uar { | |
212 | unsigned long pfn; | |
213 | int index; | |
214 | }; | |
215 | ||
216 | struct mlx4_cq { | |
217 | void (*comp) (struct mlx4_cq *); | |
218 | void (*event) (struct mlx4_cq *, enum mlx4_event); | |
219 | ||
220 | struct mlx4_uar *uar; | |
221 | ||
222 | u32 cons_index; | |
223 | ||
224 | __be32 *set_ci_db; | |
225 | __be32 *arm_db; | |
226 | int arm_sn; | |
227 | ||
228 | int cqn; | |
229 | ||
230 | atomic_t refcount; | |
231 | struct completion free; | |
232 | }; | |
233 | ||
234 | struct mlx4_qp { | |
235 | void (*event) (struct mlx4_qp *, enum mlx4_event); | |
236 | ||
237 | int qpn; | |
238 | ||
239 | atomic_t refcount; | |
240 | struct completion free; | |
241 | }; | |
242 | ||
243 | struct mlx4_srq { | |
244 | void (*event) (struct mlx4_srq *, enum mlx4_event); | |
245 | ||
246 | int srqn; | |
247 | int max; | |
248 | int max_gs; | |
249 | int wqe_shift; | |
250 | ||
251 | atomic_t refcount; | |
252 | struct completion free; | |
253 | }; | |
254 | ||
255 | struct mlx4_av { | |
256 | __be32 port_pd; | |
257 | u8 reserved1; | |
258 | u8 g_slid; | |
259 | __be16 dlid; | |
260 | u8 reserved2; | |
261 | u8 gid_index; | |
262 | u8 stat_rate; | |
263 | u8 hop_limit; | |
264 | __be32 sl_tclass_flowlabel; | |
265 | u8 dgid[16]; | |
266 | }; | |
267 | ||
268 | struct mlx4_dev { | |
269 | struct pci_dev *pdev; | |
270 | unsigned long flags; | |
271 | struct mlx4_caps caps; | |
272 | struct radix_tree_root qp_table_tree; | |
273 | }; | |
274 | ||
275 | struct mlx4_init_port_param { | |
276 | int set_guid0; | |
277 | int set_node_guid; | |
278 | int set_si_guid; | |
279 | u16 mtu; | |
280 | int port_width_cap; | |
281 | u16 vl_cap; | |
282 | u16 max_gid; | |
283 | u16 max_pkey; | |
284 | u64 guid0; | |
285 | u64 node_guid; | |
286 | u64 si_guid; | |
287 | }; | |
288 | ||
289 | int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct, | |
290 | struct mlx4_buf *buf); | |
291 | void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf); | |
292 | ||
293 | int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn); | |
294 | void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn); | |
295 | ||
296 | int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar); | |
297 | void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar); | |
298 | ||
299 | int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift, | |
300 | struct mlx4_mtt *mtt); | |
301 | void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt); | |
302 | u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt); | |
303 | ||
304 | int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access, | |
305 | int npages, int page_shift, struct mlx4_mr *mr); | |
306 | void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr); | |
307 | int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr); | |
308 | int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt, | |
309 | int start_index, int npages, u64 *page_list); | |
310 | int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt, | |
311 | struct mlx4_buf *buf); | |
312 | ||
313 | int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt, | |
314 | struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq); | |
315 | void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq); | |
316 | ||
317 | int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp); | |
318 | void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp); | |
319 | ||
320 | int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt, | |
321 | u64 db_rec, struct mlx4_srq *srq); | |
322 | void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq); | |
323 | int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark); | |
324 | ||
325 | int mlx4_INIT_PORT(struct mlx4_dev *dev, struct mlx4_init_port_param *param, int port); | |
326 | int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port); | |
327 | ||
328 | int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]); | |
329 | int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]); | |
330 | ||
331 | #endif /* MLX4_DEVICE_H */ |