Linux kernel mirror (for testing)
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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,
44 MLX4_FLAG_OLD_PORT_CMDS = 1 << 1,
45};
46
47enum {
48 MLX4_MAX_PORTS = 2
49};
50
51enum {
52 MLX4_BOARD_ID_LEN = 64
53};
54
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_DPDP = 1 << 12,
64 MLX4_DEV_CAP_FLAG_BLH = 1 << 15,
65 MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16,
66 MLX4_DEV_CAP_FLAG_APM = 1 << 17,
67 MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18,
68 MLX4_DEV_CAP_FLAG_RAW_MCAST = 1 << 19,
69 MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1 << 20,
70 MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21
71};
72
73enum {
74 MLX4_BMME_FLAG_LOCAL_INV = 1 << 6,
75 MLX4_BMME_FLAG_REMOTE_INV = 1 << 7,
76 MLX4_BMME_FLAG_TYPE_2_WIN = 1 << 9,
77 MLX4_BMME_FLAG_RESERVED_LKEY = 1 << 10,
78 MLX4_BMME_FLAG_FAST_REG_WR = 1 << 11,
79};
80
81enum mlx4_event {
82 MLX4_EVENT_TYPE_COMP = 0x00,
83 MLX4_EVENT_TYPE_PATH_MIG = 0x01,
84 MLX4_EVENT_TYPE_COMM_EST = 0x02,
85 MLX4_EVENT_TYPE_SQ_DRAINED = 0x03,
86 MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13,
87 MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14,
88 MLX4_EVENT_TYPE_CQ_ERROR = 0x04,
89 MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05,
90 MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06,
91 MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07,
92 MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
93 MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11,
94 MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12,
95 MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08,
96 MLX4_EVENT_TYPE_PORT_CHANGE = 0x09,
97 MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f,
98 MLX4_EVENT_TYPE_ECC_DETECT = 0x0e,
99 MLX4_EVENT_TYPE_CMD = 0x0a
100};
101
102enum {
103 MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1,
104 MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
105};
106
107enum {
108 MLX4_PERM_LOCAL_READ = 1 << 10,
109 MLX4_PERM_LOCAL_WRITE = 1 << 11,
110 MLX4_PERM_REMOTE_READ = 1 << 12,
111 MLX4_PERM_REMOTE_WRITE = 1 << 13,
112 MLX4_PERM_ATOMIC = 1 << 14
113};
114
115enum {
116 MLX4_OPCODE_NOP = 0x00,
117 MLX4_OPCODE_SEND_INVAL = 0x01,
118 MLX4_OPCODE_RDMA_WRITE = 0x08,
119 MLX4_OPCODE_RDMA_WRITE_IMM = 0x09,
120 MLX4_OPCODE_SEND = 0x0a,
121 MLX4_OPCODE_SEND_IMM = 0x0b,
122 MLX4_OPCODE_LSO = 0x0e,
123 MLX4_OPCODE_RDMA_READ = 0x10,
124 MLX4_OPCODE_ATOMIC_CS = 0x11,
125 MLX4_OPCODE_ATOMIC_FA = 0x12,
126 MLX4_OPCODE_MASKED_ATOMIC_CS = 0x14,
127 MLX4_OPCODE_MASKED_ATOMIC_FA = 0x15,
128 MLX4_OPCODE_BIND_MW = 0x18,
129 MLX4_OPCODE_FMR = 0x19,
130 MLX4_OPCODE_LOCAL_INVAL = 0x1b,
131 MLX4_OPCODE_CONFIG_CMD = 0x1f,
132
133 MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
134 MLX4_RECV_OPCODE_SEND = 0x01,
135 MLX4_RECV_OPCODE_SEND_IMM = 0x02,
136 MLX4_RECV_OPCODE_SEND_INVAL = 0x03,
137
138 MLX4_CQE_OPCODE_ERROR = 0x1e,
139 MLX4_CQE_OPCODE_RESIZE = 0x16,
140};
141
142enum {
143 MLX4_STAT_RATE_OFFSET = 5
144};
145
146enum {
147 MLX4_MTT_FLAG_PRESENT = 1
148};
149
150enum mlx4_qp_region {
151 MLX4_QP_REGION_FW = 0,
152 MLX4_QP_REGION_ETH_ADDR,
153 MLX4_QP_REGION_FC_ADDR,
154 MLX4_QP_REGION_FC_EXCH,
155 MLX4_NUM_QP_REGION
156};
157
158enum mlx4_port_type {
159 MLX4_PORT_TYPE_IB = 1,
160 MLX4_PORT_TYPE_ETH = 2,
161 MLX4_PORT_TYPE_AUTO = 3
162};
163
164enum mlx4_special_vlan_idx {
165 MLX4_NO_VLAN_IDX = 0,
166 MLX4_VLAN_MISS_IDX,
167 MLX4_VLAN_REGULAR
168};
169
170enum {
171 MLX4_NUM_FEXCH = 64 * 1024,
172};
173
174static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
175{
176 return (major << 32) | (minor << 16) | subminor;
177}
178
179struct mlx4_caps {
180 u64 fw_ver;
181 int num_ports;
182 int vl_cap[MLX4_MAX_PORTS + 1];
183 int ib_mtu_cap[MLX4_MAX_PORTS + 1];
184 __be32 ib_port_def_cap[MLX4_MAX_PORTS + 1];
185 u64 def_mac[MLX4_MAX_PORTS + 1];
186 int eth_mtu_cap[MLX4_MAX_PORTS + 1];
187 int gid_table_len[MLX4_MAX_PORTS + 1];
188 int pkey_table_len[MLX4_MAX_PORTS + 1];
189 int local_ca_ack_delay;
190 int num_uars;
191 int bf_reg_size;
192 int bf_regs_per_page;
193 int max_sq_sg;
194 int max_rq_sg;
195 int num_qps;
196 int max_wqes;
197 int max_sq_desc_sz;
198 int max_rq_desc_sz;
199 int max_qp_init_rdma;
200 int max_qp_dest_rdma;
201 int sqp_start;
202 int num_srqs;
203 int max_srq_wqes;
204 int max_srq_sge;
205 int reserved_srqs;
206 int num_cqs;
207 int max_cqes;
208 int reserved_cqs;
209 int num_eqs;
210 int reserved_eqs;
211 int num_comp_vectors;
212 int num_mpts;
213 int num_mtt_segs;
214 int mtts_per_seg;
215 int fmr_reserved_mtts;
216 int reserved_mtts;
217 int reserved_mrws;
218 int reserved_uars;
219 int num_mgms;
220 int num_amgms;
221 int reserved_mcgs;
222 int num_qp_per_mgm;
223 int num_pds;
224 int reserved_pds;
225 int mtt_entry_sz;
226 u32 max_msg_sz;
227 u32 page_size_cap;
228 u32 flags;
229 u32 bmme_flags;
230 u32 reserved_lkey;
231 u16 stat_rate_support;
232 u8 port_width_cap[MLX4_MAX_PORTS + 1];
233 int max_gso_sz;
234 int reserved_qps_cnt[MLX4_NUM_QP_REGION];
235 int reserved_qps;
236 int reserved_qps_base[MLX4_NUM_QP_REGION];
237 int log_num_macs;
238 int log_num_vlans;
239 int log_num_prios;
240 enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
241 u8 supported_type[MLX4_MAX_PORTS + 1];
242 u32 port_mask;
243 enum mlx4_port_type possible_type[MLX4_MAX_PORTS + 1];
244};
245
246struct mlx4_buf_list {
247 void *buf;
248 dma_addr_t map;
249};
250
251struct mlx4_buf {
252 struct mlx4_buf_list direct;
253 struct mlx4_buf_list *page_list;
254 int nbufs;
255 int npages;
256 int page_shift;
257};
258
259struct mlx4_mtt {
260 u32 first_seg;
261 int order;
262 int page_shift;
263};
264
265enum {
266 MLX4_DB_PER_PAGE = PAGE_SIZE / 4
267};
268
269struct mlx4_db_pgdir {
270 struct list_head list;
271 DECLARE_BITMAP(order0, MLX4_DB_PER_PAGE);
272 DECLARE_BITMAP(order1, MLX4_DB_PER_PAGE / 2);
273 unsigned long *bits[2];
274 __be32 *db_page;
275 dma_addr_t db_dma;
276};
277
278struct mlx4_ib_user_db_page;
279
280struct mlx4_db {
281 __be32 *db;
282 union {
283 struct mlx4_db_pgdir *pgdir;
284 struct mlx4_ib_user_db_page *user_page;
285 } u;
286 dma_addr_t dma;
287 int index;
288 int order;
289};
290
291struct mlx4_hwq_resources {
292 struct mlx4_db db;
293 struct mlx4_mtt mtt;
294 struct mlx4_buf buf;
295};
296
297struct mlx4_mr {
298 struct mlx4_mtt mtt;
299 u64 iova;
300 u64 size;
301 u32 key;
302 u32 pd;
303 u32 access;
304 int enabled;
305};
306
307struct mlx4_fmr {
308 struct mlx4_mr mr;
309 struct mlx4_mpt_entry *mpt;
310 __be64 *mtts;
311 dma_addr_t dma_handle;
312 int max_pages;
313 int max_maps;
314 int maps;
315 u8 page_shift;
316};
317
318struct mlx4_uar {
319 unsigned long pfn;
320 int index;
321};
322
323struct mlx4_cq {
324 void (*comp) (struct mlx4_cq *);
325 void (*event) (struct mlx4_cq *, enum mlx4_event);
326
327 struct mlx4_uar *uar;
328
329 u32 cons_index;
330
331 __be32 *set_ci_db;
332 __be32 *arm_db;
333 int arm_sn;
334
335 int cqn;
336 unsigned vector;
337
338 atomic_t refcount;
339 struct completion free;
340};
341
342struct mlx4_qp {
343 void (*event) (struct mlx4_qp *, enum mlx4_event);
344
345 int qpn;
346
347 atomic_t refcount;
348 struct completion free;
349};
350
351struct mlx4_srq {
352 void (*event) (struct mlx4_srq *, enum mlx4_event);
353
354 int srqn;
355 int max;
356 int max_gs;
357 int wqe_shift;
358
359 atomic_t refcount;
360 struct completion free;
361};
362
363struct mlx4_av {
364 __be32 port_pd;
365 u8 reserved1;
366 u8 g_slid;
367 __be16 dlid;
368 u8 reserved2;
369 u8 gid_index;
370 u8 stat_rate;
371 u8 hop_limit;
372 __be32 sl_tclass_flowlabel;
373 u8 dgid[16];
374};
375
376struct mlx4_dev {
377 struct pci_dev *pdev;
378 unsigned long flags;
379 struct mlx4_caps caps;
380 struct radix_tree_root qp_table_tree;
381 u32 rev_id;
382 char board_id[MLX4_BOARD_ID_LEN];
383};
384
385struct mlx4_init_port_param {
386 int set_guid0;
387 int set_node_guid;
388 int set_si_guid;
389 u16 mtu;
390 int port_width_cap;
391 u16 vl_cap;
392 u16 max_gid;
393 u16 max_pkey;
394 u64 guid0;
395 u64 node_guid;
396 u64 si_guid;
397};
398
399#define mlx4_foreach_port(port, dev, type) \
400 for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \
401 if (((type) == MLX4_PORT_TYPE_IB ? (dev)->caps.port_mask : \
402 ~(dev)->caps.port_mask) & 1 << ((port) - 1))
403
404int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
405 struct mlx4_buf *buf);
406void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
407static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
408{
409 if (BITS_PER_LONG == 64 || buf->nbufs == 1)
410 return buf->direct.buf + offset;
411 else
412 return buf->page_list[offset >> PAGE_SHIFT].buf +
413 (offset & (PAGE_SIZE - 1));
414}
415
416int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
417void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
418
419int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
420void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
421
422int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
423 struct mlx4_mtt *mtt);
424void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
425u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
426
427int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
428 int npages, int page_shift, struct mlx4_mr *mr);
429void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
430int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
431int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
432 int start_index, int npages, u64 *page_list);
433int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
434 struct mlx4_buf *buf);
435
436int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order);
437void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db);
438
439int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
440 int size, int max_direct);
441void mlx4_free_hwq_res(struct mlx4_dev *mdev, struct mlx4_hwq_resources *wqres,
442 int size);
443
444int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
445 struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
446 unsigned vector, int collapsed);
447void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
448
449int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base);
450void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
451
452int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp);
453void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
454
455int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
456 u64 db_rec, struct mlx4_srq *srq);
457void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
458int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
459int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);
460
461int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
462int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
463
464int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
465 int block_mcast_loopback);
466int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
467
468int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index);
469void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index);
470
471int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
472void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index);
473
474int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
475 int npages, u64 iova, u32 *lkey, u32 *rkey);
476int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
477 int max_maps, u8 page_shift, struct mlx4_fmr *fmr);
478int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
479void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
480 u32 *lkey, u32 *rkey);
481int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
482int mlx4_SYNC_TPT(struct mlx4_dev *dev);
483
484#endif /* MLX4_DEVICE_H */