1 /*
2 * Copyright (c) 2013-2015, Mellanox Technologies. 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 <linux/mlx5/driver.h>
34 #include <linux/mlx5/cmd.h>
35 #include <linux/mlx5/eswitch.h>
36 #include <linux/module.h>
37 #include "mlx5_core.h"
38 #include "../../mlxfw/mlxfw.h"
39
40 enum {
41 MCQS_IDENTIFIER_BOOT_IMG = 0x1,
42 MCQS_IDENTIFIER_OEM_NVCONFIG = 0x4,
43 MCQS_IDENTIFIER_MLNX_NVCONFIG = 0x5,
44 MCQS_IDENTIFIER_CS_TOKEN = 0x6,
45 MCQS_IDENTIFIER_DBG_TOKEN = 0x7,
46 MCQS_IDENTIFIER_GEARBOX = 0xA,
47 };
48
49 enum {
50 MCQS_UPDATE_STATE_IDLE,
51 MCQS_UPDATE_STATE_IN_PROGRESS,
52 MCQS_UPDATE_STATE_APPLIED,
53 MCQS_UPDATE_STATE_ACTIVE,
54 MCQS_UPDATE_STATE_ACTIVE_PENDING_RESET,
55 MCQS_UPDATE_STATE_FAILED,
56 MCQS_UPDATE_STATE_CANCELED,
57 MCQS_UPDATE_STATE_BUSY,
58 };
59
60 enum {
61 MCQI_INFO_TYPE_CAPABILITIES = 0x0,
62 MCQI_INFO_TYPE_VERSION = 0x1,
63 MCQI_INFO_TYPE_ACTIVATION_METHOD = 0x5,
64 };
65
66 enum {
67 MCQI_FW_RUNNING_VERSION = 0,
68 MCQI_FW_STORED_VERSION = 1,
69 };
70
mlx5_cmd_query_adapter(struct mlx5_core_dev * dev,u32 * out,int outlen)71 static int mlx5_cmd_query_adapter(struct mlx5_core_dev *dev, u32 *out,
72 int outlen)
73 {
74 u32 in[MLX5_ST_SZ_DW(query_adapter_in)] = {0};
75
76 MLX5_SET(query_adapter_in, in, opcode, MLX5_CMD_OP_QUERY_ADAPTER);
77 return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen);
78 }
79
mlx5_query_board_id(struct mlx5_core_dev * dev)80 int mlx5_query_board_id(struct mlx5_core_dev *dev)
81 {
82 u32 *out;
83 int outlen = MLX5_ST_SZ_BYTES(query_adapter_out);
84 int err;
85
86 out = kzalloc(outlen, GFP_KERNEL);
87 if (!out)
88 return -ENOMEM;
89
90 err = mlx5_cmd_query_adapter(dev, out, outlen);
91 if (err)
92 goto out;
93
94 memcpy(dev->board_id,
95 MLX5_ADDR_OF(query_adapter_out, out,
96 query_adapter_struct.vsd_contd_psid),
97 MLX5_FLD_SZ_BYTES(query_adapter_out,
98 query_adapter_struct.vsd_contd_psid));
99
100 out:
101 kfree(out);
102 return err;
103 }
104
mlx5_core_query_vendor_id(struct mlx5_core_dev * mdev,u32 * vendor_id)105 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id)
106 {
107 u32 *out;
108 int outlen = MLX5_ST_SZ_BYTES(query_adapter_out);
109 int err;
110
111 out = kzalloc(outlen, GFP_KERNEL);
112 if (!out)
113 return -ENOMEM;
114
115 err = mlx5_cmd_query_adapter(mdev, out, outlen);
116 if (err)
117 goto out;
118
119 *vendor_id = MLX5_GET(query_adapter_out, out,
120 query_adapter_struct.ieee_vendor_id);
121 out:
122 kfree(out);
123 return err;
124 }
125 EXPORT_SYMBOL(mlx5_core_query_vendor_id);
126
mlx5_get_pcam_reg(struct mlx5_core_dev * dev)127 static int mlx5_get_pcam_reg(struct mlx5_core_dev *dev)
128 {
129 return mlx5_query_pcam_reg(dev, dev->caps.pcam,
130 MLX5_PCAM_FEATURE_ENHANCED_FEATURES,
131 MLX5_PCAM_REGS_5000_TO_507F);
132 }
133
mlx5_get_mcam_reg(struct mlx5_core_dev * dev)134 static int mlx5_get_mcam_reg(struct mlx5_core_dev *dev)
135 {
136 return mlx5_query_mcam_reg(dev, dev->caps.mcam,
137 MLX5_MCAM_FEATURE_ENHANCED_FEATURES,
138 MLX5_MCAM_REGS_FIRST_128);
139 }
140
mlx5_get_qcam_reg(struct mlx5_core_dev * dev)141 static int mlx5_get_qcam_reg(struct mlx5_core_dev *dev)
142 {
143 return mlx5_query_qcam_reg(dev, dev->caps.qcam,
144 MLX5_QCAM_FEATURE_ENHANCED_FEATURES,
145 MLX5_QCAM_REGS_FIRST_128);
146 }
147
mlx5_query_hca_caps(struct mlx5_core_dev * dev)148 int mlx5_query_hca_caps(struct mlx5_core_dev *dev)
149 {
150 int err;
151
152 err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL);
153 if (err)
154 return err;
155
156 if (MLX5_CAP_GEN(dev, eth_net_offloads)) {
157 err = mlx5_core_get_caps(dev, MLX5_CAP_ETHERNET_OFFLOADS);
158 if (err)
159 return err;
160 }
161
162 if (MLX5_CAP_GEN(dev, ipoib_enhanced_offloads)) {
163 err = mlx5_core_get_caps(dev, MLX5_CAP_IPOIB_ENHANCED_OFFLOADS);
164 if (err)
165 return err;
166 }
167
168 if (MLX5_CAP_GEN(dev, pg)) {
169 err = mlx5_core_get_caps(dev, MLX5_CAP_ODP);
170 if (err)
171 return err;
172 }
173
174 if (MLX5_CAP_GEN(dev, atomic)) {
175 err = mlx5_core_get_caps(dev, MLX5_CAP_ATOMIC);
176 if (err)
177 return err;
178 }
179
180 if (MLX5_CAP_GEN(dev, roce)) {
181 err = mlx5_core_get_caps(dev, MLX5_CAP_ROCE);
182 if (err)
183 return err;
184 }
185
186 if (MLX5_CAP_GEN(dev, nic_flow_table) ||
187 MLX5_CAP_GEN(dev, ipoib_enhanced_offloads)) {
188 err = mlx5_core_get_caps(dev, MLX5_CAP_FLOW_TABLE);
189 if (err)
190 return err;
191 }
192
193 if (MLX5_CAP_GEN(dev, vport_group_manager) &&
194 MLX5_ESWITCH_MANAGER(dev)) {
195 err = mlx5_core_get_caps(dev, MLX5_CAP_ESWITCH_FLOW_TABLE);
196 if (err)
197 return err;
198 }
199
200 if (MLX5_ESWITCH_MANAGER(dev)) {
201 err = mlx5_core_get_caps(dev, MLX5_CAP_ESWITCH);
202 if (err)
203 return err;
204 }
205
206 if (MLX5_CAP_GEN(dev, vector_calc)) {
207 err = mlx5_core_get_caps(dev, MLX5_CAP_VECTOR_CALC);
208 if (err)
209 return err;
210 }
211
212 if (MLX5_CAP_GEN(dev, qos)) {
213 err = mlx5_core_get_caps(dev, MLX5_CAP_QOS);
214 if (err)
215 return err;
216 }
217
218 if (MLX5_CAP_GEN(dev, debug))
219 mlx5_core_get_caps(dev, MLX5_CAP_DEBUG);
220
221 if (MLX5_CAP_GEN(dev, pcam_reg))
222 mlx5_get_pcam_reg(dev);
223
224 if (MLX5_CAP_GEN(dev, mcam_reg))
225 mlx5_get_mcam_reg(dev);
226
227 if (MLX5_CAP_GEN(dev, qcam_reg))
228 mlx5_get_qcam_reg(dev);
229
230 if (MLX5_CAP_GEN(dev, device_memory)) {
231 err = mlx5_core_get_caps(dev, MLX5_CAP_DEV_MEM);
232 if (err)
233 return err;
234 }
235
236 if (MLX5_CAP_GEN(dev, event_cap)) {
237 err = mlx5_core_get_caps(dev, MLX5_CAP_DEV_EVENT);
238 if (err)
239 return err;
240 }
241
242 if (MLX5_CAP_GEN(dev, tls)) {
243 err = mlx5_core_get_caps(dev, MLX5_CAP_TLS);
244 if (err)
245 return err;
246 }
247
248 return 0;
249 }
250
mlx5_cmd_init_hca(struct mlx5_core_dev * dev,uint32_t * sw_owner_id)251 int mlx5_cmd_init_hca(struct mlx5_core_dev *dev, uint32_t *sw_owner_id)
252 {
253 u32 out[MLX5_ST_SZ_DW(init_hca_out)] = {0};
254 u32 in[MLX5_ST_SZ_DW(init_hca_in)] = {0};
255 int i;
256
257 MLX5_SET(init_hca_in, in, opcode, MLX5_CMD_OP_INIT_HCA);
258
259 if (MLX5_CAP_GEN(dev, sw_owner_id)) {
260 for (i = 0; i < 4; i++)
261 MLX5_ARRAY_SET(init_hca_in, in, sw_owner_id, i,
262 sw_owner_id[i]);
263 }
264
265 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
266 }
267
mlx5_cmd_teardown_hca(struct mlx5_core_dev * dev)268 int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev)
269 {
270 u32 out[MLX5_ST_SZ_DW(teardown_hca_out)] = {0};
271 u32 in[MLX5_ST_SZ_DW(teardown_hca_in)] = {0};
272
273 MLX5_SET(teardown_hca_in, in, opcode, MLX5_CMD_OP_TEARDOWN_HCA);
274 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
275 }
276
mlx5_cmd_force_teardown_hca(struct mlx5_core_dev * dev)277 int mlx5_cmd_force_teardown_hca(struct mlx5_core_dev *dev)
278 {
279 u32 out[MLX5_ST_SZ_DW(teardown_hca_out)] = {0};
280 u32 in[MLX5_ST_SZ_DW(teardown_hca_in)] = {0};
281 int force_state;
282 int ret;
283
284 if (!MLX5_CAP_GEN(dev, force_teardown)) {
285 mlx5_core_dbg(dev, "force teardown is not supported in the firmware\n");
286 return -EOPNOTSUPP;
287 }
288
289 MLX5_SET(teardown_hca_in, in, opcode, MLX5_CMD_OP_TEARDOWN_HCA);
290 MLX5_SET(teardown_hca_in, in, profile, MLX5_TEARDOWN_HCA_IN_PROFILE_FORCE_CLOSE);
291
292 ret = mlx5_cmd_exec_polling(dev, in, sizeof(in), out, sizeof(out));
293 if (ret)
294 return ret;
295
296 force_state = MLX5_GET(teardown_hca_out, out, state);
297 if (force_state == MLX5_TEARDOWN_HCA_OUT_FORCE_STATE_FAIL) {
298 mlx5_core_warn(dev, "teardown with force mode failed, doing normal teardown\n");
299 return -EIO;
300 }
301
302 return 0;
303 }
304
305 #define MLX5_FAST_TEARDOWN_WAIT_MS 3000
mlx5_cmd_fast_teardown_hca(struct mlx5_core_dev * dev)306 int mlx5_cmd_fast_teardown_hca(struct mlx5_core_dev *dev)
307 {
308 unsigned long end, delay_ms = MLX5_FAST_TEARDOWN_WAIT_MS;
309 u32 out[MLX5_ST_SZ_DW(teardown_hca_out)] = {0};
310 u32 in[MLX5_ST_SZ_DW(teardown_hca_in)] = {0};
311 int state;
312 int ret;
313
314 if (!MLX5_CAP_GEN(dev, fast_teardown)) {
315 mlx5_core_dbg(dev, "fast teardown is not supported in the firmware\n");
316 return -EOPNOTSUPP;
317 }
318
319 MLX5_SET(teardown_hca_in, in, opcode, MLX5_CMD_OP_TEARDOWN_HCA);
320 MLX5_SET(teardown_hca_in, in, profile,
321 MLX5_TEARDOWN_HCA_IN_PROFILE_PREPARE_FAST_TEARDOWN);
322
323 ret = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
324 if (ret)
325 return ret;
326
327 state = MLX5_GET(teardown_hca_out, out, state);
328 if (state == MLX5_TEARDOWN_HCA_OUT_FORCE_STATE_FAIL) {
329 mlx5_core_warn(dev, "teardown with fast mode failed\n");
330 return -EIO;
331 }
332
333 mlx5_set_nic_state(dev, MLX5_NIC_IFC_DISABLED);
334
335 /* Loop until device state turns to disable */
336 end = jiffies + msecs_to_jiffies(delay_ms);
337 do {
338 if (mlx5_get_nic_state(dev) == MLX5_NIC_IFC_DISABLED)
339 break;
340
341 cond_resched();
342 } while (!time_after(jiffies, end));
343
344 if (mlx5_get_nic_state(dev) != MLX5_NIC_IFC_DISABLED) {
345 dev_err(&dev->pdev->dev, "NIC IFC still %d after %lums.\n",
346 mlx5_get_nic_state(dev), delay_ms);
347 return -EIO;
348 }
349
350 return 0;
351 }
352
353 enum mlxsw_reg_mcc_instruction {
354 MLX5_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE = 0x01,
355 MLX5_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE = 0x02,
356 MLX5_REG_MCC_INSTRUCTION_UPDATE_COMPONENT = 0x03,
357 MLX5_REG_MCC_INSTRUCTION_VERIFY_COMPONENT = 0x04,
358 MLX5_REG_MCC_INSTRUCTION_ACTIVATE = 0x06,
359 MLX5_REG_MCC_INSTRUCTION_CANCEL = 0x08,
360 };
361
mlx5_reg_mcc_set(struct mlx5_core_dev * dev,enum mlxsw_reg_mcc_instruction instr,u16 component_index,u32 update_handle,u32 component_size)362 static int mlx5_reg_mcc_set(struct mlx5_core_dev *dev,
363 enum mlxsw_reg_mcc_instruction instr,
364 u16 component_index, u32 update_handle,
365 u32 component_size)
366 {
367 u32 out[MLX5_ST_SZ_DW(mcc_reg)];
368 u32 in[MLX5_ST_SZ_DW(mcc_reg)];
369
370 memset(in, 0, sizeof(in));
371
372 MLX5_SET(mcc_reg, in, instruction, instr);
373 MLX5_SET(mcc_reg, in, component_index, component_index);
374 MLX5_SET(mcc_reg, in, update_handle, update_handle);
375 MLX5_SET(mcc_reg, in, component_size, component_size);
376
377 return mlx5_core_access_reg(dev, in, sizeof(in), out,
378 sizeof(out), MLX5_REG_MCC, 0, 1);
379 }
380
mlx5_reg_mcc_query(struct mlx5_core_dev * dev,u32 * update_handle,u8 * error_code,u8 * control_state)381 static int mlx5_reg_mcc_query(struct mlx5_core_dev *dev,
382 u32 *update_handle, u8 *error_code,
383 u8 *control_state)
384 {
385 u32 out[MLX5_ST_SZ_DW(mcc_reg)];
386 u32 in[MLX5_ST_SZ_DW(mcc_reg)];
387 int err;
388
389 memset(in, 0, sizeof(in));
390 memset(out, 0, sizeof(out));
391 MLX5_SET(mcc_reg, in, update_handle, *update_handle);
392
393 err = mlx5_core_access_reg(dev, in, sizeof(in), out,
394 sizeof(out), MLX5_REG_MCC, 0, 0);
395 if (err)
396 goto out;
397
398 *update_handle = MLX5_GET(mcc_reg, out, update_handle);
399 *error_code = MLX5_GET(mcc_reg, out, error_code);
400 *control_state = MLX5_GET(mcc_reg, out, control_state);
401
402 out:
403 return err;
404 }
405
mlx5_reg_mcda_set(struct mlx5_core_dev * dev,u32 update_handle,u32 offset,u16 size,u8 * data)406 static int mlx5_reg_mcda_set(struct mlx5_core_dev *dev,
407 u32 update_handle,
408 u32 offset, u16 size,
409 u8 *data)
410 {
411 int err, in_size = MLX5_ST_SZ_BYTES(mcda_reg) + size;
412 u32 out[MLX5_ST_SZ_DW(mcda_reg)];
413 int i, j, dw_size = size >> 2;
414 __be32 data_element;
415 u32 *in;
416
417 in = kzalloc(in_size, GFP_KERNEL);
418 if (!in)
419 return -ENOMEM;
420
421 MLX5_SET(mcda_reg, in, update_handle, update_handle);
422 MLX5_SET(mcda_reg, in, offset, offset);
423 MLX5_SET(mcda_reg, in, size, size);
424
425 for (i = 0; i < dw_size; i++) {
426 j = i * 4;
427 data_element = htonl(*(u32 *)&data[j]);
428 memcpy(MLX5_ADDR_OF(mcda_reg, in, data) + j, &data_element, 4);
429 }
430
431 err = mlx5_core_access_reg(dev, in, in_size, out,
432 sizeof(out), MLX5_REG_MCDA, 0, 1);
433 kfree(in);
434 return err;
435 }
436
mlx5_reg_mcqi_query(struct mlx5_core_dev * dev,u16 component_index,bool read_pending,u8 info_type,u16 data_size,void * mcqi_data)437 static int mlx5_reg_mcqi_query(struct mlx5_core_dev *dev,
438 u16 component_index, bool read_pending,
439 u8 info_type, u16 data_size, void *mcqi_data)
440 {
441 u32 out[MLX5_ST_SZ_DW(mcqi_reg) + MLX5_UN_SZ_DW(mcqi_reg_data)] = {};
442 u32 in[MLX5_ST_SZ_DW(mcqi_reg)] = {};
443 void *data;
444 int err;
445
446 MLX5_SET(mcqi_reg, in, component_index, component_index);
447 MLX5_SET(mcqi_reg, in, read_pending_component, read_pending);
448 MLX5_SET(mcqi_reg, in, info_type, info_type);
449 MLX5_SET(mcqi_reg, in, data_size, data_size);
450
451 err = mlx5_core_access_reg(dev, in, sizeof(in), out,
452 MLX5_ST_SZ_BYTES(mcqi_reg) + data_size,
453 MLX5_REG_MCQI, 0, 0);
454 if (err)
455 return err;
456
457 data = MLX5_ADDR_OF(mcqi_reg, out, data);
458 memcpy(mcqi_data, data, data_size);
459
460 return 0;
461 }
462
mlx5_reg_mcqi_caps_query(struct mlx5_core_dev * dev,u16 component_index,u32 * max_component_size,u8 * log_mcda_word_size,u16 * mcda_max_write_size)463 static int mlx5_reg_mcqi_caps_query(struct mlx5_core_dev *dev, u16 component_index,
464 u32 *max_component_size, u8 *log_mcda_word_size,
465 u16 *mcda_max_write_size)
466 {
467 u32 mcqi_reg[MLX5_ST_SZ_DW(mcqi_cap)] = {};
468 int err;
469
470 err = mlx5_reg_mcqi_query(dev, component_index, 0,
471 MCQI_INFO_TYPE_CAPABILITIES,
472 MLX5_ST_SZ_BYTES(mcqi_cap), mcqi_reg);
473 if (err)
474 return err;
475
476 *max_component_size = MLX5_GET(mcqi_cap, mcqi_reg, max_component_size);
477 *log_mcda_word_size = MLX5_GET(mcqi_cap, mcqi_reg, log_mcda_word_size);
478 *mcda_max_write_size = MLX5_GET(mcqi_cap, mcqi_reg, mcda_max_write_size);
479
480 return 0;
481 }
482
483 struct mlx5_mlxfw_dev {
484 struct mlxfw_dev mlxfw_dev;
485 struct mlx5_core_dev *mlx5_core_dev;
486 };
487
mlx5_component_query(struct mlxfw_dev * mlxfw_dev,u16 component_index,u32 * p_max_size,u8 * p_align_bits,u16 * p_max_write_size)488 static int mlx5_component_query(struct mlxfw_dev *mlxfw_dev,
489 u16 component_index, u32 *p_max_size,
490 u8 *p_align_bits, u16 *p_max_write_size)
491 {
492 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
493 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
494 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
495
496 if (!MLX5_CAP_GEN(dev, mcam_reg) || !MLX5_CAP_MCAM_REG(dev, mcqi)) {
497 mlx5_core_warn(dev, "caps query isn't supported by running FW\n");
498 return -EOPNOTSUPP;
499 }
500
501 return mlx5_reg_mcqi_caps_query(dev, component_index, p_max_size,
502 p_align_bits, p_max_write_size);
503 }
504
mlx5_fsm_lock(struct mlxfw_dev * mlxfw_dev,u32 * fwhandle)505 static int mlx5_fsm_lock(struct mlxfw_dev *mlxfw_dev, u32 *fwhandle)
506 {
507 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
508 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
509 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
510 u8 control_state, error_code;
511 int err;
512
513 *fwhandle = 0;
514 err = mlx5_reg_mcc_query(dev, fwhandle, &error_code, &control_state);
515 if (err)
516 return err;
517
518 if (control_state != MLXFW_FSM_STATE_IDLE)
519 return -EBUSY;
520
521 return mlx5_reg_mcc_set(dev, MLX5_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE,
522 0, *fwhandle, 0);
523 }
524
mlx5_fsm_component_update(struct mlxfw_dev * mlxfw_dev,u32 fwhandle,u16 component_index,u32 component_size)525 static int mlx5_fsm_component_update(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
526 u16 component_index, u32 component_size)
527 {
528 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
529 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
530 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
531
532 return mlx5_reg_mcc_set(dev, MLX5_REG_MCC_INSTRUCTION_UPDATE_COMPONENT,
533 component_index, fwhandle, component_size);
534 }
535
mlx5_fsm_block_download(struct mlxfw_dev * mlxfw_dev,u32 fwhandle,u8 * data,u16 size,u32 offset)536 static int mlx5_fsm_block_download(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
537 u8 *data, u16 size, u32 offset)
538 {
539 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
540 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
541 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
542
543 return mlx5_reg_mcda_set(dev, fwhandle, offset, size, data);
544 }
545
mlx5_fsm_component_verify(struct mlxfw_dev * mlxfw_dev,u32 fwhandle,u16 component_index)546 static int mlx5_fsm_component_verify(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
547 u16 component_index)
548 {
549 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
550 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
551 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
552
553 return mlx5_reg_mcc_set(dev, MLX5_REG_MCC_INSTRUCTION_VERIFY_COMPONENT,
554 component_index, fwhandle, 0);
555 }
556
mlx5_fsm_activate(struct mlxfw_dev * mlxfw_dev,u32 fwhandle)557 static int mlx5_fsm_activate(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
558 {
559 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
560 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
561 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
562
563 return mlx5_reg_mcc_set(dev, MLX5_REG_MCC_INSTRUCTION_ACTIVATE, 0,
564 fwhandle, 0);
565 }
566
mlx5_fsm_query_state(struct mlxfw_dev * mlxfw_dev,u32 fwhandle,enum mlxfw_fsm_state * fsm_state,enum mlxfw_fsm_state_err * fsm_state_err)567 static int mlx5_fsm_query_state(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
568 enum mlxfw_fsm_state *fsm_state,
569 enum mlxfw_fsm_state_err *fsm_state_err)
570 {
571 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
572 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
573 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
574 u8 control_state, error_code;
575 int err;
576
577 err = mlx5_reg_mcc_query(dev, &fwhandle, &error_code, &control_state);
578 if (err)
579 return err;
580
581 *fsm_state = control_state;
582 *fsm_state_err = min_t(enum mlxfw_fsm_state_err, error_code,
583 MLXFW_FSM_STATE_ERR_MAX);
584 return 0;
585 }
586
mlx5_fsm_cancel(struct mlxfw_dev * mlxfw_dev,u32 fwhandle)587 static void mlx5_fsm_cancel(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
588 {
589 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
590 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
591 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
592
593 mlx5_reg_mcc_set(dev, MLX5_REG_MCC_INSTRUCTION_CANCEL, 0, fwhandle, 0);
594 }
595
mlx5_fsm_release(struct mlxfw_dev * mlxfw_dev,u32 fwhandle)596 static void mlx5_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
597 {
598 struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
599 container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
600 struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
601
602 mlx5_reg_mcc_set(dev, MLX5_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE, 0,
603 fwhandle, 0);
604 }
605
606 static const struct mlxfw_dev_ops mlx5_mlxfw_dev_ops = {
607 .component_query = mlx5_component_query,
608 .fsm_lock = mlx5_fsm_lock,
609 .fsm_component_update = mlx5_fsm_component_update,
610 .fsm_block_download = mlx5_fsm_block_download,
611 .fsm_component_verify = mlx5_fsm_component_verify,
612 .fsm_activate = mlx5_fsm_activate,
613 .fsm_query_state = mlx5_fsm_query_state,
614 .fsm_cancel = mlx5_fsm_cancel,
615 .fsm_release = mlx5_fsm_release
616 };
617
mlx5_firmware_flash(struct mlx5_core_dev * dev,const struct firmware * firmware,struct netlink_ext_ack * extack)618 int mlx5_firmware_flash(struct mlx5_core_dev *dev,
619 const struct firmware *firmware,
620 struct netlink_ext_ack *extack)
621 {
622 struct mlx5_mlxfw_dev mlx5_mlxfw_dev = {
623 .mlxfw_dev = {
624 .ops = &mlx5_mlxfw_dev_ops,
625 .psid = dev->board_id,
626 .psid_size = strlen(dev->board_id),
627 },
628 .mlx5_core_dev = dev
629 };
630
631 if (!MLX5_CAP_GEN(dev, mcam_reg) ||
632 !MLX5_CAP_MCAM_REG(dev, mcqi) ||
633 !MLX5_CAP_MCAM_REG(dev, mcc) ||
634 !MLX5_CAP_MCAM_REG(dev, mcda)) {
635 pr_info("%s flashing isn't supported by the running FW\n", __func__);
636 return -EOPNOTSUPP;
637 }
638
639 return mlxfw_firmware_flash(&mlx5_mlxfw_dev.mlxfw_dev,
640 firmware, extack);
641 }
642
mlx5_reg_mcqi_version_query(struct mlx5_core_dev * dev,u16 component_index,bool read_pending,u32 * mcqi_version_out)643 static int mlx5_reg_mcqi_version_query(struct mlx5_core_dev *dev,
644 u16 component_index, bool read_pending,
645 u32 *mcqi_version_out)
646 {
647 return mlx5_reg_mcqi_query(dev, component_index, read_pending,
648 MCQI_INFO_TYPE_VERSION,
649 MLX5_ST_SZ_BYTES(mcqi_version),
650 mcqi_version_out);
651 }
652
mlx5_reg_mcqs_query(struct mlx5_core_dev * dev,u32 * out,u16 component_index)653 static int mlx5_reg_mcqs_query(struct mlx5_core_dev *dev, u32 *out,
654 u16 component_index)
655 {
656 u8 out_sz = MLX5_ST_SZ_BYTES(mcqs_reg);
657 u32 in[MLX5_ST_SZ_DW(mcqs_reg)] = {};
658 int err;
659
660 memset(out, 0, out_sz);
661
662 MLX5_SET(mcqs_reg, in, component_index, component_index);
663
664 err = mlx5_core_access_reg(dev, in, sizeof(in), out,
665 out_sz, MLX5_REG_MCQS, 0, 0);
666 return err;
667 }
668
669 /* scans component index sequentially, to find the boot img index */
mlx5_get_boot_img_component_index(struct mlx5_core_dev * dev)670 static int mlx5_get_boot_img_component_index(struct mlx5_core_dev *dev)
671 {
672 u32 out[MLX5_ST_SZ_DW(mcqs_reg)] = {};
673 u16 identifier, component_idx = 0;
674 bool quit;
675 int err;
676
677 do {
678 err = mlx5_reg_mcqs_query(dev, out, component_idx);
679 if (err)
680 return err;
681
682 identifier = MLX5_GET(mcqs_reg, out, identifier);
683 quit = !!MLX5_GET(mcqs_reg, out, last_index_flag);
684 quit |= identifier == MCQS_IDENTIFIER_BOOT_IMG;
685 } while (!quit && ++component_idx);
686
687 if (identifier != MCQS_IDENTIFIER_BOOT_IMG) {
688 mlx5_core_warn(dev, "mcqs: can't find boot_img component ix, last scanned idx %d\n",
689 component_idx);
690 return -EOPNOTSUPP;
691 }
692
693 return component_idx;
694 }
695
696 static int
mlx5_fw_image_pending(struct mlx5_core_dev * dev,int component_index,bool * pending_version_exists)697 mlx5_fw_image_pending(struct mlx5_core_dev *dev,
698 int component_index,
699 bool *pending_version_exists)
700 {
701 u32 out[MLX5_ST_SZ_DW(mcqs_reg)];
702 u8 component_update_state;
703 int err;
704
705 err = mlx5_reg_mcqs_query(dev, out, component_index);
706 if (err)
707 return err;
708
709 component_update_state = MLX5_GET(mcqs_reg, out, component_update_state);
710
711 if (component_update_state == MCQS_UPDATE_STATE_IDLE) {
712 *pending_version_exists = false;
713 } else if (component_update_state == MCQS_UPDATE_STATE_ACTIVE_PENDING_RESET) {
714 *pending_version_exists = true;
715 } else {
716 mlx5_core_warn(dev,
717 "mcqs: can't read pending fw version while fw state is %d\n",
718 component_update_state);
719 return -ENODATA;
720 }
721 return 0;
722 }
723
mlx5_fw_version_query(struct mlx5_core_dev * dev,u32 * running_ver,u32 * pending_ver)724 int mlx5_fw_version_query(struct mlx5_core_dev *dev,
725 u32 *running_ver, u32 *pending_ver)
726 {
727 u32 reg_mcqi_version[MLX5_ST_SZ_DW(mcqi_version)] = {};
728 bool pending_version_exists;
729 int component_index;
730 int err;
731
732 if (!MLX5_CAP_GEN(dev, mcam_reg) || !MLX5_CAP_MCAM_REG(dev, mcqi) ||
733 !MLX5_CAP_MCAM_REG(dev, mcqs)) {
734 mlx5_core_warn(dev, "fw query isn't supported by the FW\n");
735 return -EOPNOTSUPP;
736 }
737
738 component_index = mlx5_get_boot_img_component_index(dev);
739 if (component_index < 0)
740 return component_index;
741
742 err = mlx5_reg_mcqi_version_query(dev, component_index,
743 MCQI_FW_RUNNING_VERSION,
744 reg_mcqi_version);
745 if (err)
746 return err;
747
748 *running_ver = MLX5_GET(mcqi_version, reg_mcqi_version, version);
749
750 err = mlx5_fw_image_pending(dev, component_index, &pending_version_exists);
751 if (err)
752 return err;
753
754 if (!pending_version_exists) {
755 *pending_ver = 0;
756 return 0;
757 }
758
759 err = mlx5_reg_mcqi_version_query(dev, component_index,
760 MCQI_FW_STORED_VERSION,
761 reg_mcqi_version);
762 if (err)
763 return err;
764
765 *pending_ver = MLX5_GET(mcqi_version, reg_mcqi_version, version);
766
767 return 0;
768 }
769
