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mlx4_core: Write MTTs from CPU instead with of WRITE_MTT FW command
[people/ms/linux.git] / include / linux / mlx4 / device.h
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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
42enum {
43 MLX4_FLAG_MSI_X = 1 << 0,
5ae2a7a8 44 MLX4_FLAG_OLD_PORT_CMDS = 1 << 1,
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45};
46
47enum {
48 MLX4_MAX_PORTS = 2
49};
50
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51enum {
52 MLX4_BOARD_ID_LEN = 64
53};
54
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55enum {
56 MLX4_DEV_CAP_FLAG_RC = 1 << 0,
57 MLX4_DEV_CAP_FLAG_UC = 1 << 1,
58 MLX4_DEV_CAP_FLAG_UD = 1 << 2,
59 MLX4_DEV_CAP_FLAG_SRQ = 1 << 6,
60 MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7,
61 MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8,
62 MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9,
63 MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16,
64 MLX4_DEV_CAP_FLAG_APM = 1 << 17,
65 MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18,
66 MLX4_DEV_CAP_FLAG_RAW_MCAST = 1 << 19,
67 MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1 << 20,
68 MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21
69};
70
71enum mlx4_event {
72 MLX4_EVENT_TYPE_COMP = 0x00,
73 MLX4_EVENT_TYPE_PATH_MIG = 0x01,
74 MLX4_EVENT_TYPE_COMM_EST = 0x02,
75 MLX4_EVENT_TYPE_SQ_DRAINED = 0x03,
76 MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13,
77 MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14,
78 MLX4_EVENT_TYPE_CQ_ERROR = 0x04,
79 MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05,
80 MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06,
81 MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07,
82 MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
83 MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11,
84 MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12,
85 MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08,
86 MLX4_EVENT_TYPE_PORT_CHANGE = 0x09,
87 MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f,
88 MLX4_EVENT_TYPE_ECC_DETECT = 0x0e,
89 MLX4_EVENT_TYPE_CMD = 0x0a
90};
91
92enum {
93 MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1,
94 MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
95};
96
97enum {
98 MLX4_PERM_LOCAL_READ = 1 << 10,
99 MLX4_PERM_LOCAL_WRITE = 1 << 11,
100 MLX4_PERM_REMOTE_READ = 1 << 12,
101 MLX4_PERM_REMOTE_WRITE = 1 << 13,
102 MLX4_PERM_ATOMIC = 1 << 14
103};
104
105enum {
106 MLX4_OPCODE_NOP = 0x00,
107 MLX4_OPCODE_SEND_INVAL = 0x01,
108 MLX4_OPCODE_RDMA_WRITE = 0x08,
109 MLX4_OPCODE_RDMA_WRITE_IMM = 0x09,
110 MLX4_OPCODE_SEND = 0x0a,
111 MLX4_OPCODE_SEND_IMM = 0x0b,
112 MLX4_OPCODE_LSO = 0x0e,
113 MLX4_OPCODE_RDMA_READ = 0x10,
114 MLX4_OPCODE_ATOMIC_CS = 0x11,
115 MLX4_OPCODE_ATOMIC_FA = 0x12,
116 MLX4_OPCODE_ATOMIC_MASK_CS = 0x14,
117 MLX4_OPCODE_ATOMIC_MASK_FA = 0x15,
118 MLX4_OPCODE_BIND_MW = 0x18,
119 MLX4_OPCODE_FMR = 0x19,
120 MLX4_OPCODE_LOCAL_INVAL = 0x1b,
121 MLX4_OPCODE_CONFIG_CMD = 0x1f,
122
123 MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
124 MLX4_RECV_OPCODE_SEND = 0x01,
125 MLX4_RECV_OPCODE_SEND_IMM = 0x02,
126 MLX4_RECV_OPCODE_SEND_INVAL = 0x03,
127
128 MLX4_CQE_OPCODE_ERROR = 0x1e,
129 MLX4_CQE_OPCODE_RESIZE = 0x16,
130};
131
132enum {
133 MLX4_STAT_RATE_OFFSET = 5
134};
135
136struct mlx4_caps {
137 u64 fw_ver;
138 int num_ports;
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139 int vl_cap[MLX4_MAX_PORTS + 1];
140 int mtu_cap[MLX4_MAX_PORTS + 1];
141 int gid_table_len[MLX4_MAX_PORTS + 1];
142 int pkey_table_len[MLX4_MAX_PORTS + 1];
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143 int local_ca_ack_delay;
144 int num_uars;
145 int bf_reg_size;
146 int bf_regs_per_page;
147 int max_sq_sg;
148 int max_rq_sg;
149 int num_qps;
150 int max_wqes;
151 int max_sq_desc_sz;
152 int max_rq_desc_sz;
153 int max_qp_init_rdma;
154 int max_qp_dest_rdma;
155 int reserved_qps;
156 int sqp_start;
157 int num_srqs;
158 int max_srq_wqes;
159 int max_srq_sge;
160 int reserved_srqs;
161 int num_cqs;
162 int max_cqes;
163 int reserved_cqs;
164 int num_eqs;
165 int reserved_eqs;
166 int num_mpts;
167 int num_mtt_segs;
168 int fmr_reserved_mtts;
169 int reserved_mtts;
170 int reserved_mrws;
171 int reserved_uars;
172 int num_mgms;
173 int num_amgms;
174 int reserved_mcgs;
175 int num_qp_per_mgm;
176 int num_pds;
177 int reserved_pds;
178 int mtt_entry_sz;
149983af 179 u32 max_msg_sz;
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180 u32 page_size_cap;
181 u32 flags;
182 u16 stat_rate_support;
5ae2a7a8 183 u8 port_width_cap[MLX4_MAX_PORTS + 1];
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184};
185
186struct mlx4_buf_list {
187 void *buf;
188 dma_addr_t map;
189};
190
191struct mlx4_buf {
192 union {
193 struct mlx4_buf_list direct;
194 struct mlx4_buf_list *page_list;
195 } u;
196 int nbufs;
197 int npages;
198 int page_shift;
199};
200
201struct mlx4_mtt {
202 u32 first_seg;
203 int order;
204 int page_shift;
205};
206
207struct mlx4_mr {
208 struct mlx4_mtt mtt;
209 u64 iova;
210 u64 size;
211 u32 key;
212 u32 pd;
213 u32 access;
214 int enabled;
215};
216
217struct mlx4_uar {
218 unsigned long pfn;
219 int index;
220};
221
222struct mlx4_cq {
223 void (*comp) (struct mlx4_cq *);
224 void (*event) (struct mlx4_cq *, enum mlx4_event);
225
226 struct mlx4_uar *uar;
227
228 u32 cons_index;
229
230 __be32 *set_ci_db;
231 __be32 *arm_db;
232 int arm_sn;
233
234 int cqn;
235
236 atomic_t refcount;
237 struct completion free;
238};
239
240struct mlx4_qp {
241 void (*event) (struct mlx4_qp *, enum mlx4_event);
242
243 int qpn;
244
245 atomic_t refcount;
246 struct completion free;
247};
248
249struct mlx4_srq {
250 void (*event) (struct mlx4_srq *, enum mlx4_event);
251
252 int srqn;
253 int max;
254 int max_gs;
255 int wqe_shift;
256
257 atomic_t refcount;
258 struct completion free;
259};
260
261struct mlx4_av {
262 __be32 port_pd;
263 u8 reserved1;
264 u8 g_slid;
265 __be16 dlid;
266 u8 reserved2;
267 u8 gid_index;
268 u8 stat_rate;
269 u8 hop_limit;
270 __be32 sl_tclass_flowlabel;
271 u8 dgid[16];
272};
273
274struct mlx4_dev {
275 struct pci_dev *pdev;
276 unsigned long flags;
277 struct mlx4_caps caps;
278 struct radix_tree_root qp_table_tree;
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279 u32 rev_id;
280 char board_id[MLX4_BOARD_ID_LEN];
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281};
282
283struct mlx4_init_port_param {
284 int set_guid0;
285 int set_node_guid;
286 int set_si_guid;
287 u16 mtu;
288 int port_width_cap;
289 u16 vl_cap;
290 u16 max_gid;
291 u16 max_pkey;
292 u64 guid0;
293 u64 node_guid;
294 u64 si_guid;
295};
296
297int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
298 struct mlx4_buf *buf);
299void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
300
301int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
302void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
303
304int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
305void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
306
307int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
308 struct mlx4_mtt *mtt);
309void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
310u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
311
312int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
313 int npages, int page_shift, struct mlx4_mr *mr);
314void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
315int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
316int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
317 int start_index, int npages, u64 *page_list);
318int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
319 struct mlx4_buf *buf);
320
321int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
322 struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq);
323void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
324
325int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp);
326void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
327
328int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
329 u64 db_rec, struct mlx4_srq *srq);
330void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
331int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
65541cb7 332int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);
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5ae2a7a8 334int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
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335int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
336
337int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
338int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
339
340#endif /* MLX4_DEVICE_H */