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e126ba97 EC |
1 | /* |
2 | * Copyright (c) 2013, Mellanox Technologies 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 | #include <asm-generic/kmap_types.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/errno.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/dma-mapping.h> | |
39 | #include <linux/slab.h> | |
40 | #include <linux/io-mapping.h> | |
41 | #include <linux/mlx5/driver.h> | |
42 | #include <linux/mlx5/cq.h> | |
43 | #include <linux/mlx5/qp.h> | |
44 | #include <linux/mlx5/srq.h> | |
45 | #include <linux/debugfs.h> | |
b775516b | 46 | #include <linux/mlx5/mlx5_ifc.h> |
e126ba97 EC |
47 | #include "mlx5_core.h" |
48 | ||
49 | #define DRIVER_NAME "mlx5_core" | |
169a1d85 AV |
50 | #define DRIVER_VERSION "2.2-1" |
51 | #define DRIVER_RELDATE "Feb 2014" | |
e126ba97 EC |
52 | |
53 | MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>"); | |
54 | MODULE_DESCRIPTION("Mellanox ConnectX-IB HCA core library"); | |
55 | MODULE_LICENSE("Dual BSD/GPL"); | |
56 | MODULE_VERSION(DRIVER_VERSION); | |
57 | ||
58 | int mlx5_core_debug_mask; | |
59 | module_param_named(debug_mask, mlx5_core_debug_mask, int, 0644); | |
60 | MODULE_PARM_DESC(debug_mask, "debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0"); | |
61 | ||
9603b61d JM |
62 | #define MLX5_DEFAULT_PROF 2 |
63 | static int prof_sel = MLX5_DEFAULT_PROF; | |
64 | module_param_named(prof_sel, prof_sel, int, 0444); | |
65 | MODULE_PARM_DESC(prof_sel, "profile selector. Valid range 0 - 2"); | |
66 | ||
e126ba97 | 67 | struct workqueue_struct *mlx5_core_wq; |
9603b61d JM |
68 | static LIST_HEAD(intf_list); |
69 | static LIST_HEAD(dev_list); | |
70 | static DEFINE_MUTEX(intf_mutex); | |
71 | ||
72 | struct mlx5_device_context { | |
73 | struct list_head list; | |
74 | struct mlx5_interface *intf; | |
75 | void *context; | |
76 | }; | |
77 | ||
78 | static struct mlx5_profile profile[] = { | |
79 | [0] = { | |
80 | .mask = 0, | |
81 | }, | |
82 | [1] = { | |
83 | .mask = MLX5_PROF_MASK_QP_SIZE, | |
84 | .log_max_qp = 12, | |
85 | }, | |
86 | [2] = { | |
87 | .mask = MLX5_PROF_MASK_QP_SIZE | | |
88 | MLX5_PROF_MASK_MR_CACHE, | |
89 | .log_max_qp = 17, | |
90 | .mr_cache[0] = { | |
91 | .size = 500, | |
92 | .limit = 250 | |
93 | }, | |
94 | .mr_cache[1] = { | |
95 | .size = 500, | |
96 | .limit = 250 | |
97 | }, | |
98 | .mr_cache[2] = { | |
99 | .size = 500, | |
100 | .limit = 250 | |
101 | }, | |
102 | .mr_cache[3] = { | |
103 | .size = 500, | |
104 | .limit = 250 | |
105 | }, | |
106 | .mr_cache[4] = { | |
107 | .size = 500, | |
108 | .limit = 250 | |
109 | }, | |
110 | .mr_cache[5] = { | |
111 | .size = 500, | |
112 | .limit = 250 | |
113 | }, | |
114 | .mr_cache[6] = { | |
115 | .size = 500, | |
116 | .limit = 250 | |
117 | }, | |
118 | .mr_cache[7] = { | |
119 | .size = 500, | |
120 | .limit = 250 | |
121 | }, | |
122 | .mr_cache[8] = { | |
123 | .size = 500, | |
124 | .limit = 250 | |
125 | }, | |
126 | .mr_cache[9] = { | |
127 | .size = 500, | |
128 | .limit = 250 | |
129 | }, | |
130 | .mr_cache[10] = { | |
131 | .size = 500, | |
132 | .limit = 250 | |
133 | }, | |
134 | .mr_cache[11] = { | |
135 | .size = 500, | |
136 | .limit = 250 | |
137 | }, | |
138 | .mr_cache[12] = { | |
139 | .size = 64, | |
140 | .limit = 32 | |
141 | }, | |
142 | .mr_cache[13] = { | |
143 | .size = 32, | |
144 | .limit = 16 | |
145 | }, | |
146 | .mr_cache[14] = { | |
147 | .size = 16, | |
148 | .limit = 8 | |
149 | }, | |
150 | .mr_cache[15] = { | |
151 | .size = 8, | |
152 | .limit = 4 | |
153 | }, | |
154 | }, | |
155 | }; | |
e126ba97 EC |
156 | |
157 | static int set_dma_caps(struct pci_dev *pdev) | |
158 | { | |
159 | int err; | |
160 | ||
161 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); | |
162 | if (err) { | |
1a91de28 | 163 | dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n"); |
e126ba97 EC |
164 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
165 | if (err) { | |
1a91de28 | 166 | dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting\n"); |
e126ba97 EC |
167 | return err; |
168 | } | |
169 | } | |
170 | ||
171 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
172 | if (err) { | |
173 | dev_warn(&pdev->dev, | |
1a91de28 | 174 | "Warning: couldn't set 64-bit consistent PCI DMA mask\n"); |
e126ba97 EC |
175 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
176 | if (err) { | |
177 | dev_err(&pdev->dev, | |
1a91de28 | 178 | "Can't set consistent PCI DMA mask, aborting\n"); |
e126ba97 EC |
179 | return err; |
180 | } | |
181 | } | |
182 | ||
183 | dma_set_max_seg_size(&pdev->dev, 2u * 1024 * 1024 * 1024); | |
184 | return err; | |
185 | } | |
186 | ||
187 | static int request_bar(struct pci_dev *pdev) | |
188 | { | |
189 | int err = 0; | |
190 | ||
191 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
1a91de28 | 192 | dev_err(&pdev->dev, "Missing registers BAR, aborting\n"); |
e126ba97 EC |
193 | return -ENODEV; |
194 | } | |
195 | ||
196 | err = pci_request_regions(pdev, DRIVER_NAME); | |
197 | if (err) | |
198 | dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n"); | |
199 | ||
200 | return err; | |
201 | } | |
202 | ||
203 | static void release_bar(struct pci_dev *pdev) | |
204 | { | |
205 | pci_release_regions(pdev); | |
206 | } | |
207 | ||
208 | static int mlx5_enable_msix(struct mlx5_core_dev *dev) | |
209 | { | |
210 | struct mlx5_eq_table *table = &dev->priv.eq_table; | |
c7a08ac7 | 211 | int num_eqs = 1 << dev->caps.gen.log_max_eq; |
e126ba97 | 212 | int nvec; |
e126ba97 EC |
213 | int i; |
214 | ||
c7a08ac7 | 215 | nvec = dev->caps.gen.num_ports * num_online_cpus() + MLX5_EQ_VEC_COMP_BASE; |
e126ba97 EC |
216 | nvec = min_t(int, nvec, num_eqs); |
217 | if (nvec <= MLX5_EQ_VEC_COMP_BASE) | |
218 | return -ENOMEM; | |
219 | ||
220 | table->msix_arr = kzalloc(nvec * sizeof(*table->msix_arr), GFP_KERNEL); | |
221 | if (!table->msix_arr) | |
222 | return -ENOMEM; | |
223 | ||
224 | for (i = 0; i < nvec; i++) | |
225 | table->msix_arr[i].entry = i; | |
226 | ||
f3c9407b AG |
227 | nvec = pci_enable_msix_range(dev->pdev, table->msix_arr, |
228 | MLX5_EQ_VEC_COMP_BASE, nvec); | |
229 | if (nvec < 0) | |
230 | return nvec; | |
e126ba97 | 231 | |
f3c9407b | 232 | table->num_comp_vectors = nvec - MLX5_EQ_VEC_COMP_BASE; |
e126ba97 EC |
233 | |
234 | return 0; | |
235 | } | |
236 | ||
237 | static void mlx5_disable_msix(struct mlx5_core_dev *dev) | |
238 | { | |
239 | struct mlx5_eq_table *table = &dev->priv.eq_table; | |
240 | ||
241 | pci_disable_msix(dev->pdev); | |
242 | kfree(table->msix_arr); | |
243 | } | |
244 | ||
245 | struct mlx5_reg_host_endianess { | |
246 | u8 he; | |
247 | u8 rsvd[15]; | |
248 | }; | |
249 | ||
87b8de49 EC |
250 | |
251 | #define CAP_MASK(pos, size) ((u64)((1 << (size)) - 1) << (pos)) | |
252 | ||
253 | enum { | |
c7a08ac7 EC |
254 | MLX5_CAP_BITS_RW_MASK = CAP_MASK(MLX5_CAP_OFF_CMDIF_CSUM, 2) | |
255 | MLX5_DEV_CAP_FLAG_DCT, | |
87b8de49 EC |
256 | }; |
257 | ||
c7a08ac7 EC |
258 | static u16 to_fw_pkey_sz(u32 size) |
259 | { | |
260 | switch (size) { | |
261 | case 128: | |
262 | return 0; | |
263 | case 256: | |
264 | return 1; | |
265 | case 512: | |
266 | return 2; | |
267 | case 1024: | |
268 | return 3; | |
269 | case 2048: | |
270 | return 4; | |
271 | case 4096: | |
272 | return 5; | |
273 | default: | |
274 | pr_warn("invalid pkey table size %d\n", size); | |
275 | return 0; | |
276 | } | |
277 | } | |
278 | ||
87b8de49 EC |
279 | /* selectively copy writable fields clearing any reserved area |
280 | */ | |
b775516b | 281 | static void copy_rw_fields(void *to, struct mlx5_caps *from) |
87b8de49 | 282 | { |
b775516b | 283 | __be64 *flags_off = (__be64 *)MLX5_ADDR_OF(cmd_hca_cap, to, reserved_22); |
87b8de49 EC |
284 | u64 v64; |
285 | ||
b775516b EC |
286 | MLX5_SET(cmd_hca_cap, to, log_max_qp, from->gen.log_max_qp); |
287 | MLX5_SET(cmd_hca_cap, to, log_max_ra_req_qp, from->gen.log_max_ra_req_qp); | |
288 | MLX5_SET(cmd_hca_cap, to, log_max_ra_res_qp, from->gen.log_max_ra_res_qp); | |
289 | MLX5_SET(cmd_hca_cap, to, pkey_table_size, from->gen.pkey_table_size); | |
290 | MLX5_SET(cmd_hca_cap, to, log_max_ra_req_dc, from->gen.log_max_ra_req_dc); | |
291 | MLX5_SET(cmd_hca_cap, to, log_max_ra_res_dc, from->gen.log_max_ra_res_dc); | |
292 | MLX5_SET(cmd_hca_cap, to, pkey_table_size, to_fw_pkey_sz(from->gen.pkey_table_size)); | |
293 | v64 = from->gen.flags & MLX5_CAP_BITS_RW_MASK; | |
294 | *flags_off = cpu_to_be64(v64); | |
87b8de49 EC |
295 | } |
296 | ||
c7a08ac7 EC |
297 | static u16 get_pkey_table_size(int pkey) |
298 | { | |
299 | if (pkey > MLX5_MAX_LOG_PKEY_TABLE) | |
300 | return 0; | |
87b8de49 | 301 | |
c7a08ac7 EC |
302 | return MLX5_MIN_PKEY_TABLE_SIZE << pkey; |
303 | } | |
304 | ||
b775516b | 305 | static void fw2drv_caps(struct mlx5_caps *caps, void *out) |
e126ba97 | 306 | { |
c7a08ac7 | 307 | struct mlx5_general_caps *gen = &caps->gen; |
b775516b EC |
308 | |
309 | gen->max_srq_wqes = 1 << MLX5_GET_PR(cmd_hca_cap, out, log_max_srq_sz); | |
310 | gen->max_wqes = 1 << MLX5_GET_PR(cmd_hca_cap, out, log_max_qp_sz); | |
311 | gen->log_max_qp = MLX5_GET_PR(cmd_hca_cap, out, log_max_qp); | |
312 | gen->log_max_strq = MLX5_GET_PR(cmd_hca_cap, out, log_max_strq_sz); | |
313 | gen->log_max_srq = MLX5_GET_PR(cmd_hca_cap, out, log_max_srqs); | |
314 | gen->max_cqes = 1 << MLX5_GET_PR(cmd_hca_cap, out, log_max_cq_sz); | |
315 | gen->log_max_cq = MLX5_GET_PR(cmd_hca_cap, out, log_max_cq); | |
316 | gen->max_eqes = 1 << MLX5_GET_PR(cmd_hca_cap, out, log_max_eq_sz); | |
317 | gen->log_max_mkey = MLX5_GET_PR(cmd_hca_cap, out, log_max_mkey); | |
318 | gen->log_max_eq = MLX5_GET_PR(cmd_hca_cap, out, log_max_eq); | |
319 | gen->max_indirection = MLX5_GET_PR(cmd_hca_cap, out, max_indirection); | |
320 | gen->log_max_mrw_sz = MLX5_GET_PR(cmd_hca_cap, out, log_max_mrw_sz); | |
321 | gen->log_max_bsf_list_size = MLX5_GET_PR(cmd_hca_cap, out, log_max_bsf_list_size); | |
322 | gen->log_max_klm_list_size = MLX5_GET_PR(cmd_hca_cap, out, log_max_klm_list_size); | |
323 | gen->log_max_ra_req_dc = MLX5_GET_PR(cmd_hca_cap, out, log_max_ra_req_dc); | |
324 | gen->log_max_ra_res_dc = MLX5_GET_PR(cmd_hca_cap, out, log_max_ra_res_dc); | |
325 | gen->log_max_ra_req_qp = MLX5_GET_PR(cmd_hca_cap, out, log_max_ra_req_qp); | |
326 | gen->log_max_ra_res_qp = MLX5_GET_PR(cmd_hca_cap, out, log_max_ra_res_qp); | |
327 | gen->max_qp_counters = MLX5_GET_PR(cmd_hca_cap, out, max_qp_cnt); | |
328 | gen->pkey_table_size = get_pkey_table_size(MLX5_GET_PR(cmd_hca_cap, out, pkey_table_size)); | |
329 | gen->local_ca_ack_delay = MLX5_GET_PR(cmd_hca_cap, out, local_ca_ack_delay); | |
330 | gen->num_ports = MLX5_GET_PR(cmd_hca_cap, out, num_ports); | |
331 | gen->log_max_msg = MLX5_GET_PR(cmd_hca_cap, out, log_max_msg); | |
332 | gen->stat_rate_support = MLX5_GET_PR(cmd_hca_cap, out, stat_rate_support); | |
333 | gen->flags = be64_to_cpu(*(__be64 *)MLX5_ADDR_OF(cmd_hca_cap, out, reserved_22)); | |
c7a08ac7 | 334 | pr_debug("flags = 0x%llx\n", gen->flags); |
b775516b EC |
335 | gen->uar_sz = MLX5_GET_PR(cmd_hca_cap, out, uar_sz); |
336 | gen->min_log_pg_sz = MLX5_GET_PR(cmd_hca_cap, out, log_pg_sz); | |
337 | gen->bf_reg_size = MLX5_GET_PR(cmd_hca_cap, out, bf); | |
338 | gen->bf_reg_size = 1 << MLX5_GET_PR(cmd_hca_cap, out, log_bf_reg_size); | |
339 | gen->max_sq_desc_sz = MLX5_GET_PR(cmd_hca_cap, out, max_wqe_sz_sq); | |
340 | gen->max_rq_desc_sz = MLX5_GET_PR(cmd_hca_cap, out, max_wqe_sz_rq); | |
341 | gen->max_dc_sq_desc_sz = MLX5_GET_PR(cmd_hca_cap, out, max_wqe_sz_sq_dc); | |
342 | gen->max_qp_mcg = MLX5_GET_PR(cmd_hca_cap, out, max_qp_mcg); | |
343 | gen->log_max_pd = MLX5_GET_PR(cmd_hca_cap, out, log_max_pd); | |
344 | gen->log_max_xrcd = MLX5_GET_PR(cmd_hca_cap, out, log_max_xrcd); | |
345 | gen->log_uar_page_sz = MLX5_GET_PR(cmd_hca_cap, out, log_uar_page_sz); | |
c7a08ac7 EC |
346 | } |
347 | ||
348 | static const char *caps_opmod_str(u16 opmod) | |
349 | { | |
350 | switch (opmod) { | |
351 | case HCA_CAP_OPMOD_GET_MAX: | |
352 | return "GET_MAX"; | |
353 | case HCA_CAP_OPMOD_GET_CUR: | |
354 | return "GET_CUR"; | |
355 | default: | |
356 | return "Invalid"; | |
357 | } | |
358 | } | |
359 | ||
360 | int mlx5_core_get_caps(struct mlx5_core_dev *dev, struct mlx5_caps *caps, | |
361 | u16 opmod) | |
362 | { | |
b775516b EC |
363 | u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)]; |
364 | int out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out); | |
365 | void *out; | |
e126ba97 EC |
366 | int err; |
367 | ||
b775516b EC |
368 | memset(in, 0, sizeof(in)); |
369 | out = kzalloc(out_sz, GFP_KERNEL); | |
c7a08ac7 | 370 | if (!out) |
e126ba97 | 371 | return -ENOMEM; |
b775516b EC |
372 | MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP); |
373 | MLX5_SET(query_hca_cap_in, in, op_mod, opmod); | |
374 | err = mlx5_cmd_exec(dev, in, sizeof(in), out, out_sz); | |
375 | if (err) | |
376 | goto query_ex; | |
e126ba97 | 377 | |
b775516b | 378 | err = mlx5_cmd_status_to_err_v2(out); |
c7a08ac7 EC |
379 | if (err) { |
380 | mlx5_core_warn(dev, "query max hca cap failed, %d\n", err); | |
e126ba97 EC |
381 | goto query_ex; |
382 | } | |
c7a08ac7 | 383 | mlx5_core_dbg(dev, "%s\n", caps_opmod_str(opmod)); |
b775516b | 384 | fw2drv_caps(caps, MLX5_ADDR_OF(query_hca_cap_out, out, capability_struct)); |
c7a08ac7 EC |
385 | |
386 | query_ex: | |
387 | kfree(out); | |
388 | return err; | |
389 | } | |
390 | ||
b775516b | 391 | static int set_caps(struct mlx5_core_dev *dev, void *in, int in_sz) |
c7a08ac7 | 392 | { |
b775516b | 393 | u32 out[MLX5_ST_SZ_DW(set_hca_cap_out)]; |
c7a08ac7 EC |
394 | int err; |
395 | ||
b775516b | 396 | memset(out, 0, sizeof(out)); |
e126ba97 | 397 | |
b775516b EC |
398 | MLX5_SET(set_hca_cap_in, in, opcode, MLX5_CMD_OP_SET_HCA_CAP); |
399 | err = mlx5_cmd_exec(dev, in, in_sz, out, sizeof(out)); | |
e126ba97 | 400 | if (err) |
c7a08ac7 | 401 | return err; |
e126ba97 | 402 | |
b775516b | 403 | err = mlx5_cmd_status_to_err_v2(out); |
c7a08ac7 EC |
404 | |
405 | return err; | |
406 | } | |
407 | ||
408 | static int handle_hca_cap(struct mlx5_core_dev *dev) | |
409 | { | |
b775516b | 410 | void *set_ctx = NULL; |
c7a08ac7 EC |
411 | struct mlx5_profile *prof = dev->profile; |
412 | struct mlx5_caps *cur_caps = NULL; | |
413 | struct mlx5_caps *max_caps = NULL; | |
414 | int err = -ENOMEM; | |
b775516b | 415 | int set_sz = MLX5_ST_SZ_BYTES(set_hca_cap_in); |
c7a08ac7 | 416 | |
b775516b | 417 | set_ctx = kzalloc(set_sz, GFP_KERNEL); |
c7a08ac7 | 418 | if (!set_ctx) |
e126ba97 | 419 | goto query_ex; |
e126ba97 | 420 | |
c7a08ac7 EC |
421 | max_caps = kzalloc(sizeof(*max_caps), GFP_KERNEL); |
422 | if (!max_caps) | |
423 | goto query_ex; | |
e126ba97 | 424 | |
c7a08ac7 EC |
425 | cur_caps = kzalloc(sizeof(*cur_caps), GFP_KERNEL); |
426 | if (!cur_caps) | |
427 | goto query_ex; | |
e126ba97 | 428 | |
c7a08ac7 EC |
429 | err = mlx5_core_get_caps(dev, max_caps, HCA_CAP_OPMOD_GET_MAX); |
430 | if (err) | |
e126ba97 | 431 | goto query_ex; |
e126ba97 | 432 | |
c7a08ac7 | 433 | err = mlx5_core_get_caps(dev, cur_caps, HCA_CAP_OPMOD_GET_CUR); |
e126ba97 EC |
434 | if (err) |
435 | goto query_ex; | |
436 | ||
c7a08ac7 EC |
437 | /* we limit the size of the pkey table to 128 entries for now */ |
438 | cur_caps->gen.pkey_table_size = 128; | |
439 | ||
440 | if (prof->mask & MLX5_PROF_MASK_QP_SIZE) | |
441 | cur_caps->gen.log_max_qp = prof->log_max_qp; | |
442 | ||
443 | /* disable checksum */ | |
444 | cur_caps->gen.flags &= ~MLX5_DEV_CAP_FLAG_CMDIF_CSUM; | |
445 | ||
b775516b EC |
446 | copy_rw_fields(MLX5_ADDR_OF(set_hca_cap_in, set_ctx, hca_capability_struct), |
447 | cur_caps); | |
448 | err = set_caps(dev, set_ctx, set_sz); | |
c7a08ac7 | 449 | |
e126ba97 | 450 | query_ex: |
c7a08ac7 EC |
451 | kfree(cur_caps); |
452 | kfree(max_caps); | |
e126ba97 EC |
453 | kfree(set_ctx); |
454 | ||
455 | return err; | |
456 | } | |
457 | ||
458 | static int set_hca_ctrl(struct mlx5_core_dev *dev) | |
459 | { | |
460 | struct mlx5_reg_host_endianess he_in; | |
461 | struct mlx5_reg_host_endianess he_out; | |
462 | int err; | |
463 | ||
464 | memset(&he_in, 0, sizeof(he_in)); | |
465 | he_in.he = MLX5_SET_HOST_ENDIANNESS; | |
466 | err = mlx5_core_access_reg(dev, &he_in, sizeof(he_in), | |
467 | &he_out, sizeof(he_out), | |
468 | MLX5_REG_HOST_ENDIANNESS, 0, 1); | |
469 | return err; | |
470 | } | |
471 | ||
cd23b14b EC |
472 | static int mlx5_core_enable_hca(struct mlx5_core_dev *dev) |
473 | { | |
474 | int err; | |
475 | struct mlx5_enable_hca_mbox_in in; | |
476 | struct mlx5_enable_hca_mbox_out out; | |
477 | ||
478 | memset(&in, 0, sizeof(in)); | |
479 | memset(&out, 0, sizeof(out)); | |
480 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_ENABLE_HCA); | |
481 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); | |
482 | if (err) | |
483 | return err; | |
484 | ||
485 | if (out.hdr.status) | |
486 | return mlx5_cmd_status_to_err(&out.hdr); | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | static int mlx5_core_disable_hca(struct mlx5_core_dev *dev) | |
492 | { | |
493 | int err; | |
494 | struct mlx5_disable_hca_mbox_in in; | |
495 | struct mlx5_disable_hca_mbox_out out; | |
496 | ||
497 | memset(&in, 0, sizeof(in)); | |
498 | memset(&out, 0, sizeof(out)); | |
499 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DISABLE_HCA); | |
500 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); | |
501 | if (err) | |
502 | return err; | |
503 | ||
504 | if (out.hdr.status) | |
505 | return mlx5_cmd_status_to_err(&out.hdr); | |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
9603b61d | 510 | static int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev) |
e126ba97 EC |
511 | { |
512 | struct mlx5_priv *priv = &dev->priv; | |
513 | int err; | |
514 | ||
515 | dev->pdev = pdev; | |
516 | pci_set_drvdata(dev->pdev, dev); | |
517 | strncpy(priv->name, dev_name(&pdev->dev), MLX5_MAX_NAME_LEN); | |
518 | priv->name[MLX5_MAX_NAME_LEN - 1] = 0; | |
519 | ||
520 | mutex_init(&priv->pgdir_mutex); | |
521 | INIT_LIST_HEAD(&priv->pgdir_list); | |
522 | spin_lock_init(&priv->mkey_lock); | |
523 | ||
524 | priv->dbg_root = debugfs_create_dir(dev_name(&pdev->dev), mlx5_debugfs_root); | |
525 | if (!priv->dbg_root) | |
526 | return -ENOMEM; | |
527 | ||
528 | err = pci_enable_device(pdev); | |
529 | if (err) { | |
1a91de28 | 530 | dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); |
e126ba97 EC |
531 | goto err_dbg; |
532 | } | |
533 | ||
534 | err = request_bar(pdev); | |
535 | if (err) { | |
1a91de28 | 536 | dev_err(&pdev->dev, "error requesting BARs, aborting\n"); |
e126ba97 EC |
537 | goto err_disable; |
538 | } | |
539 | ||
540 | pci_set_master(pdev); | |
541 | ||
542 | err = set_dma_caps(pdev); | |
543 | if (err) { | |
544 | dev_err(&pdev->dev, "Failed setting DMA capabilities mask, aborting\n"); | |
545 | goto err_clr_master; | |
546 | } | |
547 | ||
548 | dev->iseg_base = pci_resource_start(dev->pdev, 0); | |
549 | dev->iseg = ioremap(dev->iseg_base, sizeof(*dev->iseg)); | |
550 | if (!dev->iseg) { | |
551 | err = -ENOMEM; | |
552 | dev_err(&pdev->dev, "Failed mapping initialization segment, aborting\n"); | |
553 | goto err_clr_master; | |
554 | } | |
555 | dev_info(&pdev->dev, "firmware version: %d.%d.%d\n", fw_rev_maj(dev), | |
556 | fw_rev_min(dev), fw_rev_sub(dev)); | |
557 | ||
558 | err = mlx5_cmd_init(dev); | |
559 | if (err) { | |
560 | dev_err(&pdev->dev, "Failed initializing command interface, aborting\n"); | |
561 | goto err_unmap; | |
562 | } | |
563 | ||
564 | mlx5_pagealloc_init(dev); | |
cd23b14b EC |
565 | |
566 | err = mlx5_core_enable_hca(dev); | |
567 | if (err) { | |
568 | dev_err(&pdev->dev, "enable hca failed\n"); | |
569 | goto err_pagealloc_cleanup; | |
570 | } | |
571 | ||
572 | err = mlx5_satisfy_startup_pages(dev, 1); | |
573 | if (err) { | |
574 | dev_err(&pdev->dev, "failed to allocate boot pages\n"); | |
575 | goto err_disable_hca; | |
576 | } | |
577 | ||
e126ba97 EC |
578 | err = set_hca_ctrl(dev); |
579 | if (err) { | |
580 | dev_err(&pdev->dev, "set_hca_ctrl failed\n"); | |
cd23b14b | 581 | goto reclaim_boot_pages; |
e126ba97 EC |
582 | } |
583 | ||
584 | err = handle_hca_cap(dev); | |
585 | if (err) { | |
586 | dev_err(&pdev->dev, "handle_hca_cap failed\n"); | |
cd23b14b | 587 | goto reclaim_boot_pages; |
e126ba97 EC |
588 | } |
589 | ||
cd23b14b | 590 | err = mlx5_satisfy_startup_pages(dev, 0); |
e126ba97 | 591 | if (err) { |
cd23b14b EC |
592 | dev_err(&pdev->dev, "failed to allocate init pages\n"); |
593 | goto reclaim_boot_pages; | |
e126ba97 EC |
594 | } |
595 | ||
596 | err = mlx5_pagealloc_start(dev); | |
597 | if (err) { | |
598 | dev_err(&pdev->dev, "mlx5_pagealloc_start failed\n"); | |
cd23b14b | 599 | goto reclaim_boot_pages; |
e126ba97 EC |
600 | } |
601 | ||
602 | err = mlx5_cmd_init_hca(dev); | |
603 | if (err) { | |
604 | dev_err(&pdev->dev, "init hca failed\n"); | |
605 | goto err_pagealloc_stop; | |
606 | } | |
607 | ||
608 | mlx5_start_health_poll(dev); | |
609 | ||
610 | err = mlx5_cmd_query_hca_cap(dev, &dev->caps); | |
611 | if (err) { | |
612 | dev_err(&pdev->dev, "query hca failed\n"); | |
613 | goto err_stop_poll; | |
614 | } | |
615 | ||
616 | err = mlx5_cmd_query_adapter(dev); | |
617 | if (err) { | |
618 | dev_err(&pdev->dev, "query adapter failed\n"); | |
619 | goto err_stop_poll; | |
620 | } | |
621 | ||
622 | err = mlx5_enable_msix(dev); | |
623 | if (err) { | |
624 | dev_err(&pdev->dev, "enable msix failed\n"); | |
625 | goto err_stop_poll; | |
626 | } | |
627 | ||
628 | err = mlx5_eq_init(dev); | |
629 | if (err) { | |
630 | dev_err(&pdev->dev, "failed to initialize eq\n"); | |
631 | goto disable_msix; | |
632 | } | |
633 | ||
634 | err = mlx5_alloc_uuars(dev, &priv->uuari); | |
635 | if (err) { | |
636 | dev_err(&pdev->dev, "Failed allocating uar, aborting\n"); | |
637 | goto err_eq_cleanup; | |
638 | } | |
639 | ||
640 | err = mlx5_start_eqs(dev); | |
641 | if (err) { | |
642 | dev_err(&pdev->dev, "Failed to start pages and async EQs\n"); | |
643 | goto err_free_uar; | |
644 | } | |
645 | ||
646 | MLX5_INIT_DOORBELL_LOCK(&priv->cq_uar_lock); | |
647 | ||
648 | mlx5_init_cq_table(dev); | |
649 | mlx5_init_qp_table(dev); | |
650 | mlx5_init_srq_table(dev); | |
3bcdb17a | 651 | mlx5_init_mr_table(dev); |
e126ba97 EC |
652 | |
653 | return 0; | |
654 | ||
655 | err_free_uar: | |
656 | mlx5_free_uuars(dev, &priv->uuari); | |
657 | ||
658 | err_eq_cleanup: | |
659 | mlx5_eq_cleanup(dev); | |
660 | ||
661 | disable_msix: | |
662 | mlx5_disable_msix(dev); | |
663 | ||
664 | err_stop_poll: | |
665 | mlx5_stop_health_poll(dev); | |
1bde6e30 EC |
666 | if (mlx5_cmd_teardown_hca(dev)) { |
667 | dev_err(&dev->pdev->dev, "tear_down_hca failed, skip cleanup\n"); | |
668 | return err; | |
669 | } | |
e126ba97 EC |
670 | |
671 | err_pagealloc_stop: | |
672 | mlx5_pagealloc_stop(dev); | |
673 | ||
cd23b14b | 674 | reclaim_boot_pages: |
e126ba97 EC |
675 | mlx5_reclaim_startup_pages(dev); |
676 | ||
cd23b14b EC |
677 | err_disable_hca: |
678 | mlx5_core_disable_hca(dev); | |
679 | ||
e126ba97 EC |
680 | err_pagealloc_cleanup: |
681 | mlx5_pagealloc_cleanup(dev); | |
682 | mlx5_cmd_cleanup(dev); | |
683 | ||
684 | err_unmap: | |
685 | iounmap(dev->iseg); | |
686 | ||
687 | err_clr_master: | |
688 | pci_clear_master(dev->pdev); | |
689 | release_bar(dev->pdev); | |
690 | ||
691 | err_disable: | |
692 | pci_disable_device(dev->pdev); | |
693 | ||
694 | err_dbg: | |
695 | debugfs_remove(priv->dbg_root); | |
696 | return err; | |
697 | } | |
698 | EXPORT_SYMBOL(mlx5_dev_init); | |
699 | ||
9603b61d | 700 | static void mlx5_dev_cleanup(struct mlx5_core_dev *dev) |
e126ba97 EC |
701 | { |
702 | struct mlx5_priv *priv = &dev->priv; | |
703 | ||
704 | mlx5_cleanup_srq_table(dev); | |
705 | mlx5_cleanup_qp_table(dev); | |
706 | mlx5_cleanup_cq_table(dev); | |
707 | mlx5_stop_eqs(dev); | |
708 | mlx5_free_uuars(dev, &priv->uuari); | |
709 | mlx5_eq_cleanup(dev); | |
710 | mlx5_disable_msix(dev); | |
711 | mlx5_stop_health_poll(dev); | |
1bde6e30 EC |
712 | if (mlx5_cmd_teardown_hca(dev)) { |
713 | dev_err(&dev->pdev->dev, "tear_down_hca failed, skip cleanup\n"); | |
714 | return; | |
715 | } | |
e126ba97 EC |
716 | mlx5_pagealloc_stop(dev); |
717 | mlx5_reclaim_startup_pages(dev); | |
cd23b14b | 718 | mlx5_core_disable_hca(dev); |
e126ba97 EC |
719 | mlx5_pagealloc_cleanup(dev); |
720 | mlx5_cmd_cleanup(dev); | |
721 | iounmap(dev->iseg); | |
722 | pci_clear_master(dev->pdev); | |
723 | release_bar(dev->pdev); | |
724 | pci_disable_device(dev->pdev); | |
725 | debugfs_remove(priv->dbg_root); | |
726 | } | |
9603b61d JM |
727 | |
728 | static void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv) | |
729 | { | |
730 | struct mlx5_device_context *dev_ctx; | |
731 | struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv); | |
732 | ||
733 | dev_ctx = kmalloc(sizeof(*dev_ctx), GFP_KERNEL); | |
734 | if (!dev_ctx) { | |
735 | pr_warn("mlx5_add_device: alloc context failed\n"); | |
736 | return; | |
737 | } | |
738 | ||
739 | dev_ctx->intf = intf; | |
740 | dev_ctx->context = intf->add(dev); | |
741 | ||
742 | if (dev_ctx->context) { | |
743 | spin_lock_irq(&priv->ctx_lock); | |
744 | list_add_tail(&dev_ctx->list, &priv->ctx_list); | |
745 | spin_unlock_irq(&priv->ctx_lock); | |
746 | } else { | |
747 | kfree(dev_ctx); | |
748 | } | |
749 | } | |
750 | ||
751 | static void mlx5_remove_device(struct mlx5_interface *intf, struct mlx5_priv *priv) | |
752 | { | |
753 | struct mlx5_device_context *dev_ctx; | |
754 | struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv); | |
755 | ||
756 | list_for_each_entry(dev_ctx, &priv->ctx_list, list) | |
757 | if (dev_ctx->intf == intf) { | |
758 | spin_lock_irq(&priv->ctx_lock); | |
759 | list_del(&dev_ctx->list); | |
760 | spin_unlock_irq(&priv->ctx_lock); | |
761 | ||
762 | intf->remove(dev, dev_ctx->context); | |
763 | kfree(dev_ctx); | |
764 | return; | |
765 | } | |
766 | } | |
767 | static int mlx5_register_device(struct mlx5_core_dev *dev) | |
768 | { | |
769 | struct mlx5_priv *priv = &dev->priv; | |
770 | struct mlx5_interface *intf; | |
771 | ||
772 | mutex_lock(&intf_mutex); | |
773 | list_add_tail(&priv->dev_list, &dev_list); | |
774 | list_for_each_entry(intf, &intf_list, list) | |
775 | mlx5_add_device(intf, priv); | |
776 | mutex_unlock(&intf_mutex); | |
777 | ||
778 | return 0; | |
779 | } | |
780 | static void mlx5_unregister_device(struct mlx5_core_dev *dev) | |
781 | { | |
782 | struct mlx5_priv *priv = &dev->priv; | |
783 | struct mlx5_interface *intf; | |
784 | ||
785 | mutex_lock(&intf_mutex); | |
786 | list_for_each_entry(intf, &intf_list, list) | |
787 | mlx5_remove_device(intf, priv); | |
788 | list_del(&priv->dev_list); | |
789 | mutex_unlock(&intf_mutex); | |
790 | } | |
791 | ||
792 | int mlx5_register_interface(struct mlx5_interface *intf) | |
793 | { | |
794 | struct mlx5_priv *priv; | |
795 | ||
796 | if (!intf->add || !intf->remove) | |
797 | return -EINVAL; | |
798 | ||
799 | mutex_lock(&intf_mutex); | |
800 | list_add_tail(&intf->list, &intf_list); | |
801 | list_for_each_entry(priv, &dev_list, dev_list) | |
802 | mlx5_add_device(intf, priv); | |
803 | mutex_unlock(&intf_mutex); | |
804 | ||
805 | return 0; | |
806 | } | |
807 | EXPORT_SYMBOL(mlx5_register_interface); | |
808 | ||
809 | void mlx5_unregister_interface(struct mlx5_interface *intf) | |
810 | { | |
811 | struct mlx5_priv *priv; | |
812 | ||
813 | mutex_lock(&intf_mutex); | |
814 | list_for_each_entry(priv, &dev_list, dev_list) | |
815 | mlx5_remove_device(intf, priv); | |
816 | list_del(&intf->list); | |
817 | mutex_unlock(&intf_mutex); | |
818 | } | |
819 | EXPORT_SYMBOL(mlx5_unregister_interface); | |
820 | ||
821 | static void mlx5_core_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event, | |
4d2f9bbb | 822 | unsigned long param) |
9603b61d JM |
823 | { |
824 | struct mlx5_priv *priv = &dev->priv; | |
825 | struct mlx5_device_context *dev_ctx; | |
826 | unsigned long flags; | |
827 | ||
828 | spin_lock_irqsave(&priv->ctx_lock, flags); | |
829 | ||
830 | list_for_each_entry(dev_ctx, &priv->ctx_list, list) | |
831 | if (dev_ctx->intf->event) | |
4d2f9bbb | 832 | dev_ctx->intf->event(dev, dev_ctx->context, event, param); |
9603b61d JM |
833 | |
834 | spin_unlock_irqrestore(&priv->ctx_lock, flags); | |
835 | } | |
836 | ||
837 | struct mlx5_core_event_handler { | |
838 | void (*event)(struct mlx5_core_dev *dev, | |
839 | enum mlx5_dev_event event, | |
840 | void *data); | |
841 | }; | |
842 | ||
843 | static int init_one(struct pci_dev *pdev, | |
844 | const struct pci_device_id *id) | |
845 | { | |
846 | struct mlx5_core_dev *dev; | |
847 | struct mlx5_priv *priv; | |
848 | int err; | |
849 | ||
850 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
851 | if (!dev) { | |
852 | dev_err(&pdev->dev, "kzalloc failed\n"); | |
853 | return -ENOMEM; | |
854 | } | |
855 | priv = &dev->priv; | |
856 | ||
857 | pci_set_drvdata(pdev, dev); | |
858 | ||
859 | if (prof_sel < 0 || prof_sel >= ARRAY_SIZE(profile)) { | |
860 | pr_warn("selected profile out of range, selecting default (%d)\n", | |
861 | MLX5_DEFAULT_PROF); | |
862 | prof_sel = MLX5_DEFAULT_PROF; | |
863 | } | |
864 | dev->profile = &profile[prof_sel]; | |
865 | dev->event = mlx5_core_event; | |
866 | ||
364d1798 EC |
867 | INIT_LIST_HEAD(&priv->ctx_list); |
868 | spin_lock_init(&priv->ctx_lock); | |
9603b61d JM |
869 | err = mlx5_dev_init(dev, pdev); |
870 | if (err) { | |
871 | dev_err(&pdev->dev, "mlx5_dev_init failed %d\n", err); | |
872 | goto out; | |
873 | } | |
874 | ||
9603b61d JM |
875 | err = mlx5_register_device(dev); |
876 | if (err) { | |
877 | dev_err(&pdev->dev, "mlx5_register_device failed %d\n", err); | |
878 | goto out_init; | |
879 | } | |
880 | ||
881 | return 0; | |
882 | ||
883 | out_init: | |
884 | mlx5_dev_cleanup(dev); | |
885 | out: | |
886 | kfree(dev); | |
887 | return err; | |
888 | } | |
889 | static void remove_one(struct pci_dev *pdev) | |
890 | { | |
891 | struct mlx5_core_dev *dev = pci_get_drvdata(pdev); | |
892 | ||
893 | mlx5_unregister_device(dev); | |
894 | mlx5_dev_cleanup(dev); | |
895 | kfree(dev); | |
896 | } | |
897 | ||
898 | static const struct pci_device_id mlx5_core_pci_table[] = { | |
899 | { PCI_VDEVICE(MELLANOX, 4113) }, /* MT4113 Connect-IB */ | |
f832dc82 | 900 | { PCI_VDEVICE(MELLANOX, 4115) }, /* ConnectX-4 */ |
9603b61d JM |
901 | { 0, } |
902 | }; | |
903 | ||
904 | MODULE_DEVICE_TABLE(pci, mlx5_core_pci_table); | |
905 | ||
906 | static struct pci_driver mlx5_core_driver = { | |
907 | .name = DRIVER_NAME, | |
908 | .id_table = mlx5_core_pci_table, | |
909 | .probe = init_one, | |
910 | .remove = remove_one | |
911 | }; | |
e126ba97 EC |
912 | |
913 | static int __init init(void) | |
914 | { | |
915 | int err; | |
916 | ||
917 | mlx5_register_debugfs(); | |
918 | mlx5_core_wq = create_singlethread_workqueue("mlx5_core_wq"); | |
919 | if (!mlx5_core_wq) { | |
920 | err = -ENOMEM; | |
921 | goto err_debug; | |
922 | } | |
923 | mlx5_health_init(); | |
924 | ||
9603b61d JM |
925 | err = pci_register_driver(&mlx5_core_driver); |
926 | if (err) | |
927 | goto err_health; | |
928 | ||
e126ba97 EC |
929 | return 0; |
930 | ||
9603b61d JM |
931 | err_health: |
932 | mlx5_health_cleanup(); | |
933 | destroy_workqueue(mlx5_core_wq); | |
e126ba97 EC |
934 | err_debug: |
935 | mlx5_unregister_debugfs(); | |
936 | return err; | |
937 | } | |
938 | ||
939 | static void __exit cleanup(void) | |
940 | { | |
9603b61d | 941 | pci_unregister_driver(&mlx5_core_driver); |
e126ba97 EC |
942 | mlx5_health_cleanup(); |
943 | destroy_workqueue(mlx5_core_wq); | |
944 | mlx5_unregister_debugfs(); | |
945 | } | |
946 | ||
947 | module_init(init); | |
948 | module_exit(cleanup); |