1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3  * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
6  */
7 #include <linux/completion.h>
8 #include <linux/dma-mapping.h>
9 #include <linux/firmware.h>
10 #include <linux/module.h>
11 #include <linux/vmalloc.h>
12 
13 #include "iwl-drv.h"
14 #include "iwl-csr.h"
15 #include "iwl-debug.h"
16 #include "iwl-trans.h"
17 #include "iwl-op-mode.h"
18 #include "iwl-agn-hw.h"
19 #include "fw/img.h"
20 #include "iwl-dbg-tlv.h"
21 #include "iwl-config.h"
22 #include "iwl-modparams.h"
23 #include "fw/api/alive.h"
24 #include "fw/api/mac.h"
25 
26 /******************************************************************************
27  *
28  * module boiler plate
29  *
30  ******************************************************************************/
31 
32 #define DRV_DESCRIPTION	"Intel(R) Wireless WiFi driver for Linux"
33 MODULE_DESCRIPTION(DRV_DESCRIPTION);
34 MODULE_LICENSE("GPL");
35 
36 #ifdef CONFIG_IWLWIFI_DEBUGFS
37 static struct dentry *iwl_dbgfs_root;
38 #endif
39 
40 /**
41  * struct iwl_drv - drv common data
42  * @list: list of drv structures using this opmode
43  * @fw: the iwl_fw structure
44  * @op_mode: the running op_mode
45  * @trans: transport layer
46  * @dev: for debug prints only
47  * @fw_index: firmware revision to try loading
48  * @firmware_name: composite filename of ucode file to load
49  * @request_firmware_complete: the firmware has been obtained from user space
50  * @dbgfs_drv: debugfs root directory entry
51  * @dbgfs_trans: debugfs transport directory entry
52  * @dbgfs_op_mode: debugfs op_mode directory entry
53  */
54 struct iwl_drv {
55 	struct list_head list;
56 	struct iwl_fw fw;
57 
58 	struct iwl_op_mode *op_mode;
59 	struct iwl_trans *trans;
60 	struct device *dev;
61 
62 	int fw_index;                   /* firmware we're trying to load */
63 	char firmware_name[64];         /* name of firmware file to load */
64 
65 	struct completion request_firmware_complete;
66 
67 #ifdef CONFIG_IWLWIFI_DEBUGFS
68 	struct dentry *dbgfs_drv;
69 	struct dentry *dbgfs_trans;
70 	struct dentry *dbgfs_op_mode;
71 #endif
72 };
73 
74 enum {
75 	DVM_OP_MODE,
76 	MVM_OP_MODE,
77 };
78 
79 /* Protects the table contents, i.e. the ops pointer & drv list */
80 static DEFINE_MUTEX(iwlwifi_opmode_table_mtx);
81 static struct iwlwifi_opmode_table {
82 	const char *name;			/* name: iwldvm, iwlmvm, etc */
83 	const struct iwl_op_mode_ops *ops;	/* pointer to op_mode ops */
84 	struct list_head drv;		/* list of devices using this op_mode */
85 } iwlwifi_opmode_table[] = {		/* ops set when driver is initialized */
86 	[DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
87 	[MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
88 };
89 
90 #define IWL_DEFAULT_SCAN_CHANNELS 40
91 
92 /*
93  * struct fw_sec: Just for the image parsing process.
94  * For the fw storage we are using struct fw_desc.
95  */
96 struct fw_sec {
97 	const void *data;		/* the sec data */
98 	size_t size;			/* section size */
99 	u32 offset;			/* offset of writing in the device */
100 };
101 
iwl_free_fw_desc(struct iwl_drv * drv,struct fw_desc * desc)102 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
103 {
104 	vfree(desc->data);
105 	desc->data = NULL;
106 	desc->len = 0;
107 }
108 
iwl_free_fw_img(struct iwl_drv * drv,struct fw_img * img)109 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
110 {
111 	int i;
112 	for (i = 0; i < img->num_sec; i++)
113 		iwl_free_fw_desc(drv, &img->sec[i]);
114 	kfree(img->sec);
115 }
116 
iwl_dealloc_ucode(struct iwl_drv * drv)117 static void iwl_dealloc_ucode(struct iwl_drv *drv)
118 {
119 	int i;
120 
121 	kfree(drv->fw.dbg.dest_tlv);
122 	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
123 		kfree(drv->fw.dbg.conf_tlv[i]);
124 	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
125 		kfree(drv->fw.dbg.trigger_tlv[i]);
126 	kfree(drv->fw.dbg.mem_tlv);
127 	kfree(drv->fw.iml);
128 	kfree(drv->fw.ucode_capa.cmd_versions);
129 	kfree(drv->fw.phy_integration_ver);
130 
131 	for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
132 		iwl_free_fw_img(drv, drv->fw.img + i);
133 
134 	/* clear the data for the aborted load case */
135 	memset(&drv->fw, 0, sizeof(drv->fw));
136 }
137 
iwl_alloc_fw_desc(struct iwl_drv * drv,struct fw_desc * desc,struct fw_sec * sec)138 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
139 			     struct fw_sec *sec)
140 {
141 	void *data;
142 
143 	desc->data = NULL;
144 
145 	if (!sec || !sec->size)
146 		return -EINVAL;
147 
148 	data = vmalloc(sec->size);
149 	if (!data)
150 		return -ENOMEM;
151 
152 	desc->len = sec->size;
153 	desc->offset = sec->offset;
154 	memcpy(data, sec->data, desc->len);
155 	desc->data = data;
156 
157 	return 0;
158 }
159 
160 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
161 				void *context);
162 
iwl_request_firmware(struct iwl_drv * drv,bool first)163 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
164 {
165 	const struct iwl_cfg *cfg = drv->trans->cfg;
166 	char tag[8];
167 
168 	if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
169 	    (drv->trans->hw_rev_step != SILICON_B_STEP &&
170 	     drv->trans->hw_rev_step != SILICON_C_STEP)) {
171 		IWL_ERR(drv,
172 			"Only HW steps B and C are currently supported (0x%0x)\n",
173 			drv->trans->hw_rev);
174 		return -EINVAL;
175 	}
176 
177 	if (first) {
178 		drv->fw_index = cfg->ucode_api_max;
179 		sprintf(tag, "%d", drv->fw_index);
180 	} else {
181 		drv->fw_index--;
182 		sprintf(tag, "%d", drv->fw_index);
183 	}
184 
185 	if (drv->fw_index < cfg->ucode_api_min) {
186 		IWL_ERR(drv, "no suitable firmware found!\n");
187 
188 		if (cfg->ucode_api_min == cfg->ucode_api_max) {
189 			IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
190 				cfg->ucode_api_max);
191 		} else {
192 			IWL_ERR(drv, "minimum version required: %s%d\n",
193 				cfg->fw_name_pre, cfg->ucode_api_min);
194 			IWL_ERR(drv, "maximum version supported: %s%d\n",
195 				cfg->fw_name_pre, cfg->ucode_api_max);
196 		}
197 
198 		IWL_ERR(drv,
199 			"check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
200 		return -ENOENT;
201 	}
202 
203 	snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
204 		 cfg->fw_name_pre, tag);
205 
206 	IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
207 			  drv->firmware_name);
208 
209 	return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
210 				       drv->trans->dev,
211 				       GFP_KERNEL, drv, iwl_req_fw_callback);
212 }
213 
214 struct fw_img_parsing {
215 	struct fw_sec *sec;
216 	int sec_counter;
217 };
218 
219 /*
220  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
221  */
222 struct fw_sec_parsing {
223 	__le32 offset;
224 	const u8 data[];
225 } __packed;
226 
227 /**
228  * struct iwl_tlv_calib_data - parse the default calib data from TLV
229  *
230  * @ucode_type: the uCode to which the following default calib relates.
231  * @calib: default calibrations.
232  */
233 struct iwl_tlv_calib_data {
234 	__le32 ucode_type;
235 	struct iwl_tlv_calib_ctrl calib;
236 } __packed;
237 
238 struct iwl_firmware_pieces {
239 	struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
240 
241 	u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
242 	u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
243 
244 	/* FW debug data parsed for driver usage */
245 	bool dbg_dest_tlv_init;
246 	const u8 *dbg_dest_ver;
247 	union {
248 		const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
249 		const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
250 	};
251 	const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
252 	size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
253 	const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
254 	size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
255 	struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
256 	size_t n_mem_tlv;
257 };
258 
259 /*
260  * These functions are just to extract uCode section data from the pieces
261  * structure.
262  */
get_sec(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)263 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
264 			      enum iwl_ucode_type type,
265 			      int  sec)
266 {
267 	return &pieces->img[type].sec[sec];
268 }
269 
alloc_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)270 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
271 			   enum iwl_ucode_type type,
272 			   int sec)
273 {
274 	struct fw_img_parsing *img = &pieces->img[type];
275 	struct fw_sec *sec_memory;
276 	int size = sec + 1;
277 	size_t alloc_size = sizeof(*img->sec) * size;
278 
279 	if (img->sec && img->sec_counter >= size)
280 		return;
281 
282 	sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
283 	if (!sec_memory)
284 		return;
285 
286 	img->sec = sec_memory;
287 	img->sec_counter = size;
288 }
289 
set_sec_data(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,const void * data)290 static void set_sec_data(struct iwl_firmware_pieces *pieces,
291 			 enum iwl_ucode_type type,
292 			 int sec,
293 			 const void *data)
294 {
295 	alloc_sec_data(pieces, type, sec);
296 
297 	pieces->img[type].sec[sec].data = data;
298 }
299 
set_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,size_t size)300 static void set_sec_size(struct iwl_firmware_pieces *pieces,
301 			 enum iwl_ucode_type type,
302 			 int sec,
303 			 size_t size)
304 {
305 	alloc_sec_data(pieces, type, sec);
306 
307 	pieces->img[type].sec[sec].size = size;
308 }
309 
get_sec_size(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec)310 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
311 			   enum iwl_ucode_type type,
312 			   int sec)
313 {
314 	return pieces->img[type].sec[sec].size;
315 }
316 
set_sec_offset(struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type,int sec,u32 offset)317 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
318 			   enum iwl_ucode_type type,
319 			   int sec,
320 			   u32 offset)
321 {
322 	alloc_sec_data(pieces, type, sec);
323 
324 	pieces->img[type].sec[sec].offset = offset;
325 }
326 
327 /*
328  * Gets uCode section from tlv.
329  */
iwl_store_ucode_sec(struct iwl_firmware_pieces * pieces,const void * data,enum iwl_ucode_type type,int size)330 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
331 			       const void *data, enum iwl_ucode_type type,
332 			       int size)
333 {
334 	struct fw_img_parsing *img;
335 	struct fw_sec *sec;
336 	const struct fw_sec_parsing *sec_parse;
337 	size_t alloc_size;
338 
339 	if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
340 		return -1;
341 
342 	sec_parse = (const struct fw_sec_parsing *)data;
343 
344 	img = &pieces->img[type];
345 
346 	alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
347 	sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
348 	if (!sec)
349 		return -ENOMEM;
350 	img->sec = sec;
351 
352 	sec = &img->sec[img->sec_counter];
353 
354 	sec->offset = le32_to_cpu(sec_parse->offset);
355 	sec->data = sec_parse->data;
356 	sec->size = size - sizeof(sec_parse->offset);
357 
358 	++img->sec_counter;
359 
360 	return 0;
361 }
362 
iwl_set_default_calib(struct iwl_drv * drv,const u8 * data)363 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
364 {
365 	const struct iwl_tlv_calib_data *def_calib =
366 					(const struct iwl_tlv_calib_data *)data;
367 	u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
368 	if (ucode_type >= IWL_UCODE_TYPE_MAX) {
369 		IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
370 			ucode_type);
371 		return -EINVAL;
372 	}
373 	drv->fw.default_calib[ucode_type].flow_trigger =
374 		def_calib->calib.flow_trigger;
375 	drv->fw.default_calib[ucode_type].event_trigger =
376 		def_calib->calib.event_trigger;
377 
378 	return 0;
379 }
380 
iwl_set_ucode_api_flags(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)381 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
382 				    struct iwl_ucode_capabilities *capa)
383 {
384 	const struct iwl_ucode_api *ucode_api = (const void *)data;
385 	u32 api_index = le32_to_cpu(ucode_api->api_index);
386 	u32 api_flags = le32_to_cpu(ucode_api->api_flags);
387 	int i;
388 
389 	if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
390 		IWL_WARN(drv,
391 			 "api flags index %d larger than supported by driver\n",
392 			 api_index);
393 		return;
394 	}
395 
396 	for (i = 0; i < 32; i++) {
397 		if (api_flags & BIT(i))
398 			__set_bit(i + 32 * api_index, capa->_api);
399 	}
400 }
401 
iwl_set_ucode_capabilities(struct iwl_drv * drv,const u8 * data,struct iwl_ucode_capabilities * capa)402 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
403 				       struct iwl_ucode_capabilities *capa)
404 {
405 	const struct iwl_ucode_capa *ucode_capa = (const void *)data;
406 	u32 api_index = le32_to_cpu(ucode_capa->api_index);
407 	u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
408 	int i;
409 
410 	if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
411 		IWL_WARN(drv,
412 			 "capa flags index %d larger than supported by driver\n",
413 			 api_index);
414 		return;
415 	}
416 
417 	for (i = 0; i < 32; i++) {
418 		if (api_flags & BIT(i))
419 			__set_bit(i + 32 * api_index, capa->_capa);
420 	}
421 }
422 
iwl_reduced_fw_name(struct iwl_drv * drv)423 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
424 {
425 	const char *name = drv->firmware_name;
426 
427 	if (strncmp(name, "iwlwifi-", 8) == 0)
428 		name += 8;
429 
430 	return name;
431 }
432 
iwl_parse_v1_v2_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces)433 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
434 				    const struct firmware *ucode_raw,
435 				    struct iwl_firmware_pieces *pieces)
436 {
437 	const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data;
438 	u32 api_ver, hdr_size, build;
439 	char buildstr[25];
440 	const u8 *src;
441 
442 	drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
443 	api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
444 
445 	switch (api_ver) {
446 	default:
447 		hdr_size = 28;
448 		if (ucode_raw->size < hdr_size) {
449 			IWL_ERR(drv, "File size too small!\n");
450 			return -EINVAL;
451 		}
452 		build = le32_to_cpu(ucode->u.v2.build);
453 		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
454 			     le32_to_cpu(ucode->u.v2.inst_size));
455 		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
456 			     le32_to_cpu(ucode->u.v2.data_size));
457 		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
458 			     le32_to_cpu(ucode->u.v2.init_size));
459 		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
460 			     le32_to_cpu(ucode->u.v2.init_data_size));
461 		src = ucode->u.v2.data;
462 		break;
463 	case 0:
464 	case 1:
465 	case 2:
466 		hdr_size = 24;
467 		if (ucode_raw->size < hdr_size) {
468 			IWL_ERR(drv, "File size too small!\n");
469 			return -EINVAL;
470 		}
471 		build = 0;
472 		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
473 			     le32_to_cpu(ucode->u.v1.inst_size));
474 		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
475 			     le32_to_cpu(ucode->u.v1.data_size));
476 		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
477 			     le32_to_cpu(ucode->u.v1.init_size));
478 		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
479 			     le32_to_cpu(ucode->u.v1.init_data_size));
480 		src = ucode->u.v1.data;
481 		break;
482 	}
483 
484 	if (build)
485 		sprintf(buildstr, " build %u", build);
486 	else
487 		buildstr[0] = '\0';
488 
489 	snprintf(drv->fw.fw_version,
490 		 sizeof(drv->fw.fw_version),
491 		 "%u.%u.%u.%u%s %s",
492 		 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
493 		 IWL_UCODE_MINOR(drv->fw.ucode_ver),
494 		 IWL_UCODE_API(drv->fw.ucode_ver),
495 		 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
496 		 buildstr, iwl_reduced_fw_name(drv));
497 
498 	/* Verify size of file vs. image size info in file's header */
499 
500 	if (ucode_raw->size != hdr_size +
501 	    get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
502 	    get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
503 	    get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
504 	    get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
505 
506 		IWL_ERR(drv,
507 			"uCode file size %d does not match expected size\n",
508 			(int)ucode_raw->size);
509 		return -EINVAL;
510 	}
511 
512 
513 	set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
514 	src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
515 	set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
516 		       IWLAGN_RTC_INST_LOWER_BOUND);
517 	set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
518 	src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
519 	set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
520 		       IWLAGN_RTC_DATA_LOWER_BOUND);
521 	set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
522 	src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
523 	set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
524 		       IWLAGN_RTC_INST_LOWER_BOUND);
525 	set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
526 	src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
527 	set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
528 		       IWLAGN_RTC_DATA_LOWER_BOUND);
529 	return 0;
530 }
531 
iwl_drv_set_dump_exclude(struct iwl_drv * drv,enum iwl_ucode_tlv_type tlv_type,const void * tlv_data,u32 tlv_len)532 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
533 				     enum iwl_ucode_tlv_type tlv_type,
534 				     const void *tlv_data, u32 tlv_len)
535 {
536 	const struct iwl_fw_dump_exclude *fw = tlv_data;
537 	struct iwl_dump_exclude *excl;
538 
539 	if (tlv_len < sizeof(*fw))
540 		return;
541 
542 	if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
543 		excl = &drv->fw.dump_excl[0];
544 
545 		/* second time we find this, it's for WoWLAN */
546 		if (excl->addr)
547 			excl = &drv->fw.dump_excl_wowlan[0];
548 	} else if (fw_has_capa(&drv->fw.ucode_capa,
549 			       IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
550 		/* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
551 		excl = &drv->fw.dump_excl[0];
552 	} else {
553 		/* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
554 		excl = &drv->fw.dump_excl_wowlan[0];
555 	}
556 
557 	if (excl->addr)
558 		excl++;
559 
560 	if (excl->addr) {
561 		IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
562 		return;
563 	}
564 
565 	excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
566 	excl->size = le32_to_cpu(fw->size);
567 }
568 
iwl_parse_dbg_tlv_assert_tables(struct iwl_drv * drv,const struct iwl_ucode_tlv * tlv)569 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
570 					    const struct iwl_ucode_tlv *tlv)
571 {
572 	const struct iwl_fw_ini_region_tlv *region;
573 	u32 length = le32_to_cpu(tlv->length);
574 	u32 addr;
575 
576 	if (length < offsetof(typeof(*region), special_mem) +
577 		     sizeof(region->special_mem))
578 		return;
579 
580 	region = (const void *)tlv->data;
581 	addr = le32_to_cpu(region->special_mem.base_addr);
582 	addr += le32_to_cpu(region->special_mem.offset);
583 	addr &= ~FW_ADDR_CACHE_CONTROL;
584 
585 	if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
586 		return;
587 
588 	switch (region->sub_type) {
589 	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
590 		drv->trans->dbg.umac_error_event_table = addr;
591 		drv->trans->dbg.error_event_table_tlv_status |=
592 			IWL_ERROR_EVENT_TABLE_UMAC;
593 		break;
594 	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
595 		drv->trans->dbg.lmac_error_event_table[0] = addr;
596 		drv->trans->dbg.error_event_table_tlv_status |=
597 			IWL_ERROR_EVENT_TABLE_LMAC1;
598 		break;
599 	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
600 		drv->trans->dbg.lmac_error_event_table[1] = addr;
601 		drv->trans->dbg.error_event_table_tlv_status |=
602 			IWL_ERROR_EVENT_TABLE_LMAC2;
603 		break;
604 	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
605 		drv->trans->dbg.tcm_error_event_table[0] = addr;
606 		drv->trans->dbg.error_event_table_tlv_status |=
607 			IWL_ERROR_EVENT_TABLE_TCM1;
608 		break;
609 	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
610 		drv->trans->dbg.tcm_error_event_table[1] = addr;
611 		drv->trans->dbg.error_event_table_tlv_status |=
612 			IWL_ERROR_EVENT_TABLE_TCM2;
613 		break;
614 	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
615 		drv->trans->dbg.rcm_error_event_table[0] = addr;
616 		drv->trans->dbg.error_event_table_tlv_status |=
617 			IWL_ERROR_EVENT_TABLE_RCM1;
618 		break;
619 	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
620 		drv->trans->dbg.rcm_error_event_table[1] = addr;
621 		drv->trans->dbg.error_event_table_tlv_status |=
622 			IWL_ERROR_EVENT_TABLE_RCM2;
623 		break;
624 	default:
625 		break;
626 	}
627 }
628 
iwl_parse_tlv_firmware(struct iwl_drv * drv,const struct firmware * ucode_raw,struct iwl_firmware_pieces * pieces,struct iwl_ucode_capabilities * capa,bool * usniffer_images)629 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
630 				const struct firmware *ucode_raw,
631 				struct iwl_firmware_pieces *pieces,
632 				struct iwl_ucode_capabilities *capa,
633 				bool *usniffer_images)
634 {
635 	const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data;
636 	const struct iwl_ucode_tlv *tlv;
637 	size_t len = ucode_raw->size;
638 	const u8 *data;
639 	u32 tlv_len;
640 	u32 usniffer_img;
641 	enum iwl_ucode_tlv_type tlv_type;
642 	const u8 *tlv_data;
643 	char buildstr[25];
644 	u32 build, paging_mem_size;
645 	int num_of_cpus;
646 	bool usniffer_req = false;
647 
648 	if (len < sizeof(*ucode)) {
649 		IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
650 		return -EINVAL;
651 	}
652 
653 	if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
654 		IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
655 			le32_to_cpu(ucode->magic));
656 		return -EINVAL;
657 	}
658 
659 	drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
660 	memcpy(drv->fw.human_readable, ucode->human_readable,
661 	       sizeof(drv->fw.human_readable));
662 	build = le32_to_cpu(ucode->build);
663 
664 	if (build)
665 		sprintf(buildstr, " build %u", build);
666 	else
667 		buildstr[0] = '\0';
668 
669 	snprintf(drv->fw.fw_version,
670 		 sizeof(drv->fw.fw_version),
671 		 "%u.%u.%u.%u%s %s",
672 		 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
673 		 IWL_UCODE_MINOR(drv->fw.ucode_ver),
674 		 IWL_UCODE_API(drv->fw.ucode_ver),
675 		 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
676 		 buildstr, iwl_reduced_fw_name(drv));
677 
678 	data = ucode->data;
679 
680 	len -= sizeof(*ucode);
681 
682 	while (len >= sizeof(*tlv)) {
683 		len -= sizeof(*tlv);
684 
685 		tlv = (const void *)data;
686 		tlv_len = le32_to_cpu(tlv->length);
687 		tlv_type = le32_to_cpu(tlv->type);
688 		tlv_data = tlv->data;
689 
690 		if (len < tlv_len) {
691 			IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
692 				len, tlv_len);
693 			return -EINVAL;
694 		}
695 		len -= ALIGN(tlv_len, 4);
696 		data += sizeof(*tlv) + ALIGN(tlv_len, 4);
697 
698 		switch (tlv_type) {
699 		case IWL_UCODE_TLV_INST:
700 			set_sec_data(pieces, IWL_UCODE_REGULAR,
701 				     IWL_UCODE_SECTION_INST, tlv_data);
702 			set_sec_size(pieces, IWL_UCODE_REGULAR,
703 				     IWL_UCODE_SECTION_INST, tlv_len);
704 			set_sec_offset(pieces, IWL_UCODE_REGULAR,
705 				       IWL_UCODE_SECTION_INST,
706 				       IWLAGN_RTC_INST_LOWER_BOUND);
707 			break;
708 		case IWL_UCODE_TLV_DATA:
709 			set_sec_data(pieces, IWL_UCODE_REGULAR,
710 				     IWL_UCODE_SECTION_DATA, tlv_data);
711 			set_sec_size(pieces, IWL_UCODE_REGULAR,
712 				     IWL_UCODE_SECTION_DATA, tlv_len);
713 			set_sec_offset(pieces, IWL_UCODE_REGULAR,
714 				       IWL_UCODE_SECTION_DATA,
715 				       IWLAGN_RTC_DATA_LOWER_BOUND);
716 			break;
717 		case IWL_UCODE_TLV_INIT:
718 			set_sec_data(pieces, IWL_UCODE_INIT,
719 				     IWL_UCODE_SECTION_INST, tlv_data);
720 			set_sec_size(pieces, IWL_UCODE_INIT,
721 				     IWL_UCODE_SECTION_INST, tlv_len);
722 			set_sec_offset(pieces, IWL_UCODE_INIT,
723 				       IWL_UCODE_SECTION_INST,
724 				       IWLAGN_RTC_INST_LOWER_BOUND);
725 			break;
726 		case IWL_UCODE_TLV_INIT_DATA:
727 			set_sec_data(pieces, IWL_UCODE_INIT,
728 				     IWL_UCODE_SECTION_DATA, tlv_data);
729 			set_sec_size(pieces, IWL_UCODE_INIT,
730 				     IWL_UCODE_SECTION_DATA, tlv_len);
731 			set_sec_offset(pieces, IWL_UCODE_INIT,
732 				       IWL_UCODE_SECTION_DATA,
733 				       IWLAGN_RTC_DATA_LOWER_BOUND);
734 			break;
735 		case IWL_UCODE_TLV_BOOT:
736 			IWL_ERR(drv, "Found unexpected BOOT ucode\n");
737 			break;
738 		case IWL_UCODE_TLV_PROBE_MAX_LEN:
739 			if (tlv_len != sizeof(u32))
740 				goto invalid_tlv_len;
741 			capa->max_probe_length =
742 					le32_to_cpup((const __le32 *)tlv_data);
743 			break;
744 		case IWL_UCODE_TLV_PAN:
745 			if (tlv_len)
746 				goto invalid_tlv_len;
747 			capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
748 			break;
749 		case IWL_UCODE_TLV_FLAGS:
750 			/* must be at least one u32 */
751 			if (tlv_len < sizeof(u32))
752 				goto invalid_tlv_len;
753 			/* and a proper number of u32s */
754 			if (tlv_len % sizeof(u32))
755 				goto invalid_tlv_len;
756 			/*
757 			 * This driver only reads the first u32 as
758 			 * right now no more features are defined,
759 			 * if that changes then either the driver
760 			 * will not work with the new firmware, or
761 			 * it'll not take advantage of new features.
762 			 */
763 			capa->flags = le32_to_cpup((const __le32 *)tlv_data);
764 			break;
765 		case IWL_UCODE_TLV_API_CHANGES_SET:
766 			if (tlv_len != sizeof(struct iwl_ucode_api))
767 				goto invalid_tlv_len;
768 			iwl_set_ucode_api_flags(drv, tlv_data, capa);
769 			break;
770 		case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
771 			if (tlv_len != sizeof(struct iwl_ucode_capa))
772 				goto invalid_tlv_len;
773 			iwl_set_ucode_capabilities(drv, tlv_data, capa);
774 			break;
775 		case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
776 			if (tlv_len != sizeof(u32))
777 				goto invalid_tlv_len;
778 			pieces->init_evtlog_ptr =
779 					le32_to_cpup((const __le32 *)tlv_data);
780 			break;
781 		case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
782 			if (tlv_len != sizeof(u32))
783 				goto invalid_tlv_len;
784 			pieces->init_evtlog_size =
785 					le32_to_cpup((const __le32 *)tlv_data);
786 			break;
787 		case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
788 			if (tlv_len != sizeof(u32))
789 				goto invalid_tlv_len;
790 			pieces->init_errlog_ptr =
791 					le32_to_cpup((const __le32 *)tlv_data);
792 			break;
793 		case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
794 			if (tlv_len != sizeof(u32))
795 				goto invalid_tlv_len;
796 			pieces->inst_evtlog_ptr =
797 					le32_to_cpup((const __le32 *)tlv_data);
798 			break;
799 		case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
800 			if (tlv_len != sizeof(u32))
801 				goto invalid_tlv_len;
802 			pieces->inst_evtlog_size =
803 					le32_to_cpup((const __le32 *)tlv_data);
804 			break;
805 		case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
806 			if (tlv_len != sizeof(u32))
807 				goto invalid_tlv_len;
808 			pieces->inst_errlog_ptr =
809 					le32_to_cpup((const __le32 *)tlv_data);
810 			break;
811 		case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
812 			if (tlv_len)
813 				goto invalid_tlv_len;
814 			drv->fw.enhance_sensitivity_table = true;
815 			break;
816 		case IWL_UCODE_TLV_WOWLAN_INST:
817 			set_sec_data(pieces, IWL_UCODE_WOWLAN,
818 				     IWL_UCODE_SECTION_INST, tlv_data);
819 			set_sec_size(pieces, IWL_UCODE_WOWLAN,
820 				     IWL_UCODE_SECTION_INST, tlv_len);
821 			set_sec_offset(pieces, IWL_UCODE_WOWLAN,
822 				       IWL_UCODE_SECTION_INST,
823 				       IWLAGN_RTC_INST_LOWER_BOUND);
824 			break;
825 		case IWL_UCODE_TLV_WOWLAN_DATA:
826 			set_sec_data(pieces, IWL_UCODE_WOWLAN,
827 				     IWL_UCODE_SECTION_DATA, tlv_data);
828 			set_sec_size(pieces, IWL_UCODE_WOWLAN,
829 				     IWL_UCODE_SECTION_DATA, tlv_len);
830 			set_sec_offset(pieces, IWL_UCODE_WOWLAN,
831 				       IWL_UCODE_SECTION_DATA,
832 				       IWLAGN_RTC_DATA_LOWER_BOUND);
833 			break;
834 		case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
835 			if (tlv_len != sizeof(u32))
836 				goto invalid_tlv_len;
837 			capa->standard_phy_calibration_size =
838 					le32_to_cpup((const __le32 *)tlv_data);
839 			break;
840 		case IWL_UCODE_TLV_SEC_RT:
841 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
842 					    tlv_len);
843 			drv->fw.type = IWL_FW_MVM;
844 			break;
845 		case IWL_UCODE_TLV_SEC_INIT:
846 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
847 					    tlv_len);
848 			drv->fw.type = IWL_FW_MVM;
849 			break;
850 		case IWL_UCODE_TLV_SEC_WOWLAN:
851 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
852 					    tlv_len);
853 			drv->fw.type = IWL_FW_MVM;
854 			break;
855 		case IWL_UCODE_TLV_DEF_CALIB:
856 			if (tlv_len != sizeof(struct iwl_tlv_calib_data))
857 				goto invalid_tlv_len;
858 			if (iwl_set_default_calib(drv, tlv_data))
859 				goto tlv_error;
860 			break;
861 		case IWL_UCODE_TLV_PHY_SKU:
862 			if (tlv_len != sizeof(u32))
863 				goto invalid_tlv_len;
864 			drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data);
865 			drv->fw.valid_tx_ant = (drv->fw.phy_config &
866 						FW_PHY_CFG_TX_CHAIN) >>
867 						FW_PHY_CFG_TX_CHAIN_POS;
868 			drv->fw.valid_rx_ant = (drv->fw.phy_config &
869 						FW_PHY_CFG_RX_CHAIN) >>
870 						FW_PHY_CFG_RX_CHAIN_POS;
871 			break;
872 		case IWL_UCODE_TLV_SECURE_SEC_RT:
873 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
874 					    tlv_len);
875 			drv->fw.type = IWL_FW_MVM;
876 			break;
877 		case IWL_UCODE_TLV_SECURE_SEC_INIT:
878 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
879 					    tlv_len);
880 			drv->fw.type = IWL_FW_MVM;
881 			break;
882 		case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
883 			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
884 					    tlv_len);
885 			drv->fw.type = IWL_FW_MVM;
886 			break;
887 		case IWL_UCODE_TLV_NUM_OF_CPU:
888 			if (tlv_len != sizeof(u32))
889 				goto invalid_tlv_len;
890 			num_of_cpus =
891 				le32_to_cpup((const __le32 *)tlv_data);
892 
893 			if (num_of_cpus == 2) {
894 				drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
895 					true;
896 				drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
897 					true;
898 				drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
899 					true;
900 			} else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
901 				IWL_ERR(drv, "Driver support upto 2 CPUs\n");
902 				return -EINVAL;
903 			}
904 			break;
905 		case IWL_UCODE_TLV_N_SCAN_CHANNELS:
906 			if (tlv_len != sizeof(u32))
907 				goto invalid_tlv_len;
908 			capa->n_scan_channels =
909 				le32_to_cpup((const __le32 *)tlv_data);
910 			break;
911 		case IWL_UCODE_TLV_FW_VERSION: {
912 			const __le32 *ptr = (const void *)tlv_data;
913 			u32 major, minor;
914 			u8 local_comp;
915 
916 			if (tlv_len != sizeof(u32) * 3)
917 				goto invalid_tlv_len;
918 
919 			major = le32_to_cpup(ptr++);
920 			minor = le32_to_cpup(ptr++);
921 			local_comp = le32_to_cpup(ptr);
922 
923 			if (major >= 35)
924 				snprintf(drv->fw.fw_version,
925 					 sizeof(drv->fw.fw_version),
926 					"%u.%08x.%u %s", major, minor,
927 					local_comp, iwl_reduced_fw_name(drv));
928 			else
929 				snprintf(drv->fw.fw_version,
930 					 sizeof(drv->fw.fw_version),
931 					"%u.%u.%u %s", major, minor,
932 					local_comp, iwl_reduced_fw_name(drv));
933 			break;
934 			}
935 		case IWL_UCODE_TLV_FW_DBG_DEST: {
936 			const struct iwl_fw_dbg_dest_tlv *dest = NULL;
937 			const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
938 			u8 mon_mode;
939 
940 			pieces->dbg_dest_ver = (const u8 *)tlv_data;
941 			if (*pieces->dbg_dest_ver == 1) {
942 				dest = (const void *)tlv_data;
943 			} else if (*pieces->dbg_dest_ver == 0) {
944 				dest_v1 = (const void *)tlv_data;
945 			} else {
946 				IWL_ERR(drv,
947 					"The version is %d, and it is invalid\n",
948 					*pieces->dbg_dest_ver);
949 				break;
950 			}
951 
952 			if (pieces->dbg_dest_tlv_init) {
953 				IWL_ERR(drv,
954 					"dbg destination ignored, already exists\n");
955 				break;
956 			}
957 
958 			pieces->dbg_dest_tlv_init = true;
959 
960 			if (dest_v1) {
961 				pieces->dbg_dest_tlv_v1 = dest_v1;
962 				mon_mode = dest_v1->monitor_mode;
963 			} else {
964 				pieces->dbg_dest_tlv = dest;
965 				mon_mode = dest->monitor_mode;
966 			}
967 
968 			IWL_INFO(drv, "Found debug destination: %s\n",
969 				 get_fw_dbg_mode_string(mon_mode));
970 
971 			drv->fw.dbg.n_dest_reg = (dest_v1) ?
972 				tlv_len -
973 				offsetof(struct iwl_fw_dbg_dest_tlv_v1,
974 					 reg_ops) :
975 				tlv_len -
976 				offsetof(struct iwl_fw_dbg_dest_tlv,
977 					 reg_ops);
978 
979 			drv->fw.dbg.n_dest_reg /=
980 				sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
981 
982 			break;
983 			}
984 		case IWL_UCODE_TLV_FW_DBG_CONF: {
985 			const struct iwl_fw_dbg_conf_tlv *conf =
986 				(const void *)tlv_data;
987 
988 			if (!pieces->dbg_dest_tlv_init) {
989 				IWL_ERR(drv,
990 					"Ignore dbg config %d - no destination configured\n",
991 					conf->id);
992 				break;
993 			}
994 
995 			if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
996 				IWL_ERR(drv,
997 					"Skip unknown configuration: %d\n",
998 					conf->id);
999 				break;
1000 			}
1001 
1002 			if (pieces->dbg_conf_tlv[conf->id]) {
1003 				IWL_ERR(drv,
1004 					"Ignore duplicate dbg config %d\n",
1005 					conf->id);
1006 				break;
1007 			}
1008 
1009 			if (conf->usniffer)
1010 				usniffer_req = true;
1011 
1012 			IWL_INFO(drv, "Found debug configuration: %d\n",
1013 				 conf->id);
1014 
1015 			pieces->dbg_conf_tlv[conf->id] = conf;
1016 			pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1017 			break;
1018 			}
1019 		case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1020 			const struct iwl_fw_dbg_trigger_tlv *trigger =
1021 				(const void *)tlv_data;
1022 			u32 trigger_id = le32_to_cpu(trigger->id);
1023 
1024 			if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
1025 				IWL_ERR(drv,
1026 					"Skip unknown trigger: %u\n",
1027 					trigger->id);
1028 				break;
1029 			}
1030 
1031 			if (pieces->dbg_trigger_tlv[trigger_id]) {
1032 				IWL_ERR(drv,
1033 					"Ignore duplicate dbg trigger %u\n",
1034 					trigger->id);
1035 				break;
1036 			}
1037 
1038 			IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1039 
1040 			pieces->dbg_trigger_tlv[trigger_id] = trigger;
1041 			pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1042 			break;
1043 			}
1044 		case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1045 			if (tlv_len != sizeof(u32)) {
1046 				IWL_ERR(drv,
1047 					"dbg lst mask size incorrect, skip\n");
1048 				break;
1049 			}
1050 
1051 			drv->fw.dbg.dump_mask =
1052 				le32_to_cpup((const __le32 *)tlv_data);
1053 			break;
1054 			}
1055 		case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1056 			*usniffer_images = true;
1057 			iwl_store_ucode_sec(pieces, tlv_data,
1058 					    IWL_UCODE_REGULAR_USNIFFER,
1059 					    tlv_len);
1060 			break;
1061 		case IWL_UCODE_TLV_PAGING:
1062 			if (tlv_len != sizeof(u32))
1063 				goto invalid_tlv_len;
1064 			paging_mem_size = le32_to_cpup((const __le32 *)tlv_data);
1065 
1066 			IWL_DEBUG_FW(drv,
1067 				     "Paging: paging enabled (size = %u bytes)\n",
1068 				     paging_mem_size);
1069 
1070 			if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1071 				IWL_ERR(drv,
1072 					"Paging: driver supports up to %lu bytes for paging image\n",
1073 					MAX_PAGING_IMAGE_SIZE);
1074 				return -EINVAL;
1075 			}
1076 
1077 			if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1078 				IWL_ERR(drv,
1079 					"Paging: image isn't multiple %lu\n",
1080 					FW_PAGING_SIZE);
1081 				return -EINVAL;
1082 			}
1083 
1084 			drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1085 				paging_mem_size;
1086 			usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1087 			drv->fw.img[usniffer_img].paging_mem_size =
1088 				paging_mem_size;
1089 			break;
1090 		case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1091 			/* ignored */
1092 			break;
1093 		case IWL_UCODE_TLV_FW_MEM_SEG: {
1094 			const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1095 				(const void *)tlv_data;
1096 			size_t size;
1097 			struct iwl_fw_dbg_mem_seg_tlv *n;
1098 
1099 			if (tlv_len != (sizeof(*dbg_mem)))
1100 				goto invalid_tlv_len;
1101 
1102 			IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1103 				       dbg_mem->data_type);
1104 
1105 			size = sizeof(*pieces->dbg_mem_tlv) *
1106 			       (pieces->n_mem_tlv + 1);
1107 			n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1108 			if (!n)
1109 				return -ENOMEM;
1110 			pieces->dbg_mem_tlv = n;
1111 			pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1112 			pieces->n_mem_tlv++;
1113 			break;
1114 			}
1115 		case IWL_UCODE_TLV_IML: {
1116 			drv->fw.iml_len = tlv_len;
1117 			drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1118 			if (!drv->fw.iml)
1119 				return -ENOMEM;
1120 			break;
1121 			}
1122 		case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1123 			const struct {
1124 				__le32 buf_addr;
1125 				__le32 buf_size;
1126 			} *recov_info = (const void *)tlv_data;
1127 
1128 			if (tlv_len != sizeof(*recov_info))
1129 				goto invalid_tlv_len;
1130 			capa->error_log_addr =
1131 				le32_to_cpu(recov_info->buf_addr);
1132 			capa->error_log_size =
1133 				le32_to_cpu(recov_info->buf_size);
1134 			}
1135 			break;
1136 		case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1137 			const struct {
1138 				u8 version[32];
1139 				u8 sha1[20];
1140 			} *fseq_ver = (const void *)tlv_data;
1141 
1142 			if (tlv_len != sizeof(*fseq_ver))
1143 				goto invalid_tlv_len;
1144 			IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1145 				 fseq_ver->version);
1146 			}
1147 			break;
1148 		case IWL_UCODE_TLV_FW_NUM_STATIONS:
1149 			if (tlv_len != sizeof(u32))
1150 				goto invalid_tlv_len;
1151 			if (le32_to_cpup((const __le32 *)tlv_data) >
1152 			    IWL_MVM_STATION_COUNT_MAX) {
1153 				IWL_ERR(drv,
1154 					"%d is an invalid number of station\n",
1155 					le32_to_cpup((const __le32 *)tlv_data));
1156 				goto tlv_error;
1157 			}
1158 			capa->num_stations =
1159 				le32_to_cpup((const __le32 *)tlv_data);
1160 			break;
1161 		case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1162 			const struct iwl_umac_debug_addrs *dbg_ptrs =
1163 				(const void *)tlv_data;
1164 
1165 			if (tlv_len != sizeof(*dbg_ptrs))
1166 				goto invalid_tlv_len;
1167 			if (drv->trans->trans_cfg->device_family <
1168 			    IWL_DEVICE_FAMILY_22000)
1169 				break;
1170 			drv->trans->dbg.umac_error_event_table =
1171 				le32_to_cpu(dbg_ptrs->error_info_addr) &
1172 				~FW_ADDR_CACHE_CONTROL;
1173 			drv->trans->dbg.error_event_table_tlv_status |=
1174 				IWL_ERROR_EVENT_TABLE_UMAC;
1175 			break;
1176 			}
1177 		case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1178 			const struct iwl_lmac_debug_addrs *dbg_ptrs =
1179 				(const void *)tlv_data;
1180 
1181 			if (tlv_len != sizeof(*dbg_ptrs))
1182 				goto invalid_tlv_len;
1183 			if (drv->trans->trans_cfg->device_family <
1184 			    IWL_DEVICE_FAMILY_22000)
1185 				break;
1186 			drv->trans->dbg.lmac_error_event_table[0] =
1187 				le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1188 				~FW_ADDR_CACHE_CONTROL;
1189 			drv->trans->dbg.error_event_table_tlv_status |=
1190 				IWL_ERROR_EVENT_TABLE_LMAC1;
1191 			break;
1192 			}
1193 		case IWL_UCODE_TLV_TYPE_REGIONS:
1194 			iwl_parse_dbg_tlv_assert_tables(drv, tlv);
1195 			fallthrough;
1196 		case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1197 		case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1198 		case IWL_UCODE_TLV_TYPE_HCMD:
1199 		case IWL_UCODE_TLV_TYPE_TRIGGERS:
1200 		case IWL_UCODE_TLV_TYPE_CONF_SET:
1201 			if (iwlwifi_mod_params.enable_ini)
1202 				iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1203 			break;
1204 		case IWL_UCODE_TLV_CMD_VERSIONS:
1205 			if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1206 				IWL_ERR(drv,
1207 					"Invalid length for command versions: %u\n",
1208 					tlv_len);
1209 				tlv_len /= sizeof(struct iwl_fw_cmd_version);
1210 				tlv_len *= sizeof(struct iwl_fw_cmd_version);
1211 			}
1212 			if (WARN_ON(capa->cmd_versions))
1213 				return -EINVAL;
1214 			capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1215 						     GFP_KERNEL);
1216 			if (!capa->cmd_versions)
1217 				return -ENOMEM;
1218 			capa->n_cmd_versions =
1219 				tlv_len / sizeof(struct iwl_fw_cmd_version);
1220 			break;
1221 		case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1222 			if (drv->fw.phy_integration_ver) {
1223 				IWL_ERR(drv,
1224 					"phy integration str ignored, already exists\n");
1225 				break;
1226 			}
1227 
1228 			drv->fw.phy_integration_ver =
1229 				kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1230 			if (!drv->fw.phy_integration_ver)
1231 				return -ENOMEM;
1232 			drv->fw.phy_integration_ver_len = tlv_len;
1233 			break;
1234 		case IWL_UCODE_TLV_SEC_TABLE_ADDR:
1235 		case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
1236 			iwl_drv_set_dump_exclude(drv, tlv_type,
1237 						 tlv_data, tlv_len);
1238 			break;
1239 		default:
1240 			IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1241 			break;
1242 		}
1243 	}
1244 
1245 	if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1246 	    usniffer_req && !*usniffer_images) {
1247 		IWL_ERR(drv,
1248 			"user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1249 		return -EINVAL;
1250 	}
1251 
1252 	if (len) {
1253 		IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1254 		iwl_print_hex_dump(drv, IWL_DL_FW, data, len);
1255 		return -EINVAL;
1256 	}
1257 
1258 	return 0;
1259 
1260  invalid_tlv_len:
1261 	IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1262  tlv_error:
1263 	iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1264 
1265 	return -EINVAL;
1266 }
1267 
iwl_alloc_ucode(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,enum iwl_ucode_type type)1268 static int iwl_alloc_ucode(struct iwl_drv *drv,
1269 			   struct iwl_firmware_pieces *pieces,
1270 			   enum iwl_ucode_type type)
1271 {
1272 	int i;
1273 	struct fw_desc *sec;
1274 
1275 	sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1276 	if (!sec)
1277 		return -ENOMEM;
1278 	drv->fw.img[type].sec = sec;
1279 	drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1280 
1281 	for (i = 0; i < pieces->img[type].sec_counter; i++)
1282 		if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1283 			return -ENOMEM;
1284 
1285 	return 0;
1286 }
1287 
validate_sec_sizes(struct iwl_drv * drv,struct iwl_firmware_pieces * pieces,const struct iwl_cfg * cfg)1288 static int validate_sec_sizes(struct iwl_drv *drv,
1289 			      struct iwl_firmware_pieces *pieces,
1290 			      const struct iwl_cfg *cfg)
1291 {
1292 	IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1293 		get_sec_size(pieces, IWL_UCODE_REGULAR,
1294 			     IWL_UCODE_SECTION_INST));
1295 	IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1296 		get_sec_size(pieces, IWL_UCODE_REGULAR,
1297 			     IWL_UCODE_SECTION_DATA));
1298 	IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1299 		get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1300 	IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1301 		get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1302 
1303 	/* Verify that uCode images will fit in card's SRAM. */
1304 	if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1305 	    cfg->max_inst_size) {
1306 		IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1307 			get_sec_size(pieces, IWL_UCODE_REGULAR,
1308 				     IWL_UCODE_SECTION_INST));
1309 		return -1;
1310 	}
1311 
1312 	if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1313 	    cfg->max_data_size) {
1314 		IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1315 			get_sec_size(pieces, IWL_UCODE_REGULAR,
1316 				     IWL_UCODE_SECTION_DATA));
1317 		return -1;
1318 	}
1319 
1320 	if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1321 	     cfg->max_inst_size) {
1322 		IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1323 			get_sec_size(pieces, IWL_UCODE_INIT,
1324 				     IWL_UCODE_SECTION_INST));
1325 		return -1;
1326 	}
1327 
1328 	if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1329 	    cfg->max_data_size) {
1330 		IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1331 			get_sec_size(pieces, IWL_UCODE_REGULAR,
1332 				     IWL_UCODE_SECTION_DATA));
1333 		return -1;
1334 	}
1335 	return 0;
1336 }
1337 
1338 static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv * drv,struct iwlwifi_opmode_table * op)1339 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1340 {
1341 	const struct iwl_op_mode_ops *ops = op->ops;
1342 	struct dentry *dbgfs_dir = NULL;
1343 	struct iwl_op_mode *op_mode = NULL;
1344 	int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
1345 
1346 	for (retry = 0; retry <= max_retry; retry++) {
1347 
1348 #ifdef CONFIG_IWLWIFI_DEBUGFS
1349 		drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1350 							drv->dbgfs_drv);
1351 		dbgfs_dir = drv->dbgfs_op_mode;
1352 #endif
1353 
1354 		op_mode = ops->start(drv->trans, drv->trans->cfg,
1355 				     &drv->fw, dbgfs_dir);
1356 
1357 		if (op_mode)
1358 			return op_mode;
1359 
1360 		IWL_ERR(drv, "retry init count %d\n", retry);
1361 
1362 #ifdef CONFIG_IWLWIFI_DEBUGFS
1363 		debugfs_remove_recursive(drv->dbgfs_op_mode);
1364 		drv->dbgfs_op_mode = NULL;
1365 #endif
1366 	}
1367 
1368 	return NULL;
1369 }
1370 
_iwl_op_mode_stop(struct iwl_drv * drv)1371 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1372 {
1373 	/* op_mode can be NULL if its start failed */
1374 	if (drv->op_mode) {
1375 		iwl_op_mode_stop(drv->op_mode);
1376 		drv->op_mode = NULL;
1377 
1378 #ifdef CONFIG_IWLWIFI_DEBUGFS
1379 		debugfs_remove_recursive(drv->dbgfs_op_mode);
1380 		drv->dbgfs_op_mode = NULL;
1381 #endif
1382 	}
1383 }
1384 
1385 /*
1386  * iwl_req_fw_callback - callback when firmware was loaded
1387  *
1388  * If loaded successfully, copies the firmware into buffers
1389  * for the card to fetch (via DMA).
1390  */
iwl_req_fw_callback(const struct firmware * ucode_raw,void * context)1391 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1392 {
1393 	struct iwl_drv *drv = context;
1394 	struct iwl_fw *fw = &drv->fw;
1395 	const struct iwl_ucode_header *ucode;
1396 	struct iwlwifi_opmode_table *op;
1397 	int err;
1398 	struct iwl_firmware_pieces *pieces;
1399 	const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1400 	const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1401 	size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1402 	u32 api_ver;
1403 	int i;
1404 	bool load_module = false;
1405 	bool usniffer_images = false;
1406 	bool failure = true;
1407 
1408 	fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1409 	fw->ucode_capa.standard_phy_calibration_size =
1410 			IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1411 	fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1412 	fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1413 	/* dump all fw memory areas by default */
1414 	fw->dbg.dump_mask = 0xffffffff;
1415 
1416 	pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1417 	if (!pieces)
1418 		goto out_free_fw;
1419 
1420 	if (!ucode_raw)
1421 		goto try_again;
1422 
1423 	IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1424 			  drv->firmware_name, ucode_raw->size);
1425 
1426 	/* Make sure that we got at least the API version number */
1427 	if (ucode_raw->size < 4) {
1428 		IWL_ERR(drv, "File size way too small!\n");
1429 		goto try_again;
1430 	}
1431 
1432 	/* Data from ucode file:  header followed by uCode images */
1433 	ucode = (const struct iwl_ucode_header *)ucode_raw->data;
1434 
1435 	if (ucode->ver)
1436 		err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1437 	else
1438 		err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1439 					     &fw->ucode_capa, &usniffer_images);
1440 
1441 	if (err)
1442 		goto try_again;
1443 
1444 	if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1445 		api_ver = drv->fw.ucode_ver;
1446 	else
1447 		api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1448 
1449 	/*
1450 	 * api_ver should match the api version forming part of the
1451 	 * firmware filename ... but we don't check for that and only rely
1452 	 * on the API version read from firmware header from here on forward
1453 	 */
1454 	if (api_ver < api_min || api_ver > api_max) {
1455 		IWL_ERR(drv,
1456 			"Driver unable to support your firmware API. "
1457 			"Driver supports v%u, firmware is v%u.\n",
1458 			api_max, api_ver);
1459 		goto try_again;
1460 	}
1461 
1462 	/*
1463 	 * In mvm uCode there is no difference between data and instructions
1464 	 * sections.
1465 	 */
1466 	if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1467 							 drv->trans->cfg))
1468 		goto try_again;
1469 
1470 	/* Allocate ucode buffers for card's bus-master loading ... */
1471 
1472 	/* Runtime instructions and 2 copies of data:
1473 	 * 1) unmodified from disk
1474 	 * 2) backup cache for save/restore during power-downs
1475 	 */
1476 	for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1477 		if (iwl_alloc_ucode(drv, pieces, i))
1478 			goto out_free_fw;
1479 
1480 	if (pieces->dbg_dest_tlv_init) {
1481 		size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1482 			sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1483 			drv->fw.dbg.n_dest_reg;
1484 
1485 		drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1486 
1487 		if (!drv->fw.dbg.dest_tlv)
1488 			goto out_free_fw;
1489 
1490 		if (*pieces->dbg_dest_ver == 0) {
1491 			memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1492 			       dbg_dest_size);
1493 		} else {
1494 			struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1495 				drv->fw.dbg.dest_tlv;
1496 
1497 			dest_tlv->version = pieces->dbg_dest_tlv->version;
1498 			dest_tlv->monitor_mode =
1499 				pieces->dbg_dest_tlv->monitor_mode;
1500 			dest_tlv->size_power =
1501 				pieces->dbg_dest_tlv->size_power;
1502 			dest_tlv->wrap_count =
1503 				pieces->dbg_dest_tlv->wrap_count;
1504 			dest_tlv->write_ptr_reg =
1505 				pieces->dbg_dest_tlv->write_ptr_reg;
1506 			dest_tlv->base_shift =
1507 				pieces->dbg_dest_tlv->base_shift;
1508 			memcpy(dest_tlv->reg_ops,
1509 			       pieces->dbg_dest_tlv->reg_ops,
1510 			       sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1511 			       drv->fw.dbg.n_dest_reg);
1512 
1513 			/* In version 1 of the destination tlv, which is
1514 			 * relevant for internal buffer exclusively,
1515 			 * the base address is part of given with the length
1516 			 * of the buffer, and the size shift is give instead of
1517 			 * end shift. We now store these values in base_reg,
1518 			 * and end shift, and when dumping the data we'll
1519 			 * manipulate it for extracting both the length and
1520 			 * base address */
1521 			dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1522 			dest_tlv->end_shift =
1523 				pieces->dbg_dest_tlv->size_shift;
1524 		}
1525 	}
1526 
1527 	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1528 		if (pieces->dbg_conf_tlv[i]) {
1529 			drv->fw.dbg.conf_tlv[i] =
1530 				kmemdup(pieces->dbg_conf_tlv[i],
1531 					pieces->dbg_conf_tlv_len[i],
1532 					GFP_KERNEL);
1533 			if (!drv->fw.dbg.conf_tlv[i])
1534 				goto out_free_fw;
1535 		}
1536 	}
1537 
1538 	memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1539 
1540 	trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1541 		sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1542 	trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1543 	trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1544 		sizeof(struct iwl_fw_dbg_trigger_cmd);
1545 	trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1546 		sizeof(struct iwl_fw_dbg_trigger_mlme);
1547 	trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1548 		sizeof(struct iwl_fw_dbg_trigger_stats);
1549 	trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1550 		sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1551 	trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1552 		sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1553 	trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1554 		sizeof(struct iwl_fw_dbg_trigger_time_event);
1555 	trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1556 		sizeof(struct iwl_fw_dbg_trigger_ba);
1557 	trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1558 		sizeof(struct iwl_fw_dbg_trigger_tdls);
1559 
1560 	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1561 		if (pieces->dbg_trigger_tlv[i]) {
1562 			/*
1563 			 * If the trigger isn't long enough, WARN and exit.
1564 			 * Someone is trying to debug something and he won't
1565 			 * be able to catch the bug he is trying to chase.
1566 			 * We'd better be noisy to be sure he knows what's
1567 			 * going on.
1568 			 */
1569 			if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1570 				    (trigger_tlv_sz[i] +
1571 				     sizeof(struct iwl_fw_dbg_trigger_tlv))))
1572 				goto out_free_fw;
1573 			drv->fw.dbg.trigger_tlv_len[i] =
1574 				pieces->dbg_trigger_tlv_len[i];
1575 			drv->fw.dbg.trigger_tlv[i] =
1576 				kmemdup(pieces->dbg_trigger_tlv[i],
1577 					drv->fw.dbg.trigger_tlv_len[i],
1578 					GFP_KERNEL);
1579 			if (!drv->fw.dbg.trigger_tlv[i])
1580 				goto out_free_fw;
1581 		}
1582 	}
1583 
1584 	/* Now that we can no longer fail, copy information */
1585 
1586 	drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1587 	pieces->dbg_mem_tlv = NULL;
1588 	drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1589 
1590 	/*
1591 	 * The (size - 16) / 12 formula is based on the information recorded
1592 	 * for each event, which is of mode 1 (including timestamp) for all
1593 	 * new microcodes that include this information.
1594 	 */
1595 	fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1596 	if (pieces->init_evtlog_size)
1597 		fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1598 	else
1599 		fw->init_evtlog_size =
1600 			drv->trans->trans_cfg->base_params->max_event_log_size;
1601 	fw->init_errlog_ptr = pieces->init_errlog_ptr;
1602 	fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1603 	if (pieces->inst_evtlog_size)
1604 		fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1605 	else
1606 		fw->inst_evtlog_size =
1607 			drv->trans->trans_cfg->base_params->max_event_log_size;
1608 	fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1609 
1610 	/*
1611 	 * figure out the offset of chain noise reset and gain commands
1612 	 * base on the size of standard phy calibration commands table size
1613 	 */
1614 	if (fw->ucode_capa.standard_phy_calibration_size >
1615 	    IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1616 		fw->ucode_capa.standard_phy_calibration_size =
1617 			IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1618 
1619 	/* We have our copies now, allow OS release its copies */
1620 	release_firmware(ucode_raw);
1621 
1622 	iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1623 
1624 	mutex_lock(&iwlwifi_opmode_table_mtx);
1625 	switch (fw->type) {
1626 	case IWL_FW_DVM:
1627 		op = &iwlwifi_opmode_table[DVM_OP_MODE];
1628 		break;
1629 	default:
1630 		WARN(1, "Invalid fw type %d\n", fw->type);
1631 		fallthrough;
1632 	case IWL_FW_MVM:
1633 		op = &iwlwifi_opmode_table[MVM_OP_MODE];
1634 		break;
1635 	}
1636 
1637 	IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1638 		 drv->fw.fw_version, op->name);
1639 
1640 	/* add this device to the list of devices using this op_mode */
1641 	list_add_tail(&drv->list, &op->drv);
1642 
1643 	if (op->ops) {
1644 		drv->op_mode = _iwl_op_mode_start(drv, op);
1645 
1646 		if (!drv->op_mode) {
1647 			mutex_unlock(&iwlwifi_opmode_table_mtx);
1648 			goto out_unbind;
1649 		}
1650 	} else {
1651 		load_module = true;
1652 	}
1653 	mutex_unlock(&iwlwifi_opmode_table_mtx);
1654 
1655 	/*
1656 	 * Complete the firmware request last so that
1657 	 * a driver unbind (stop) doesn't run while we
1658 	 * are doing the start() above.
1659 	 */
1660 	complete(&drv->request_firmware_complete);
1661 
1662 	/*
1663 	 * Load the module last so we don't block anything
1664 	 * else from proceeding if the module fails to load
1665 	 * or hangs loading.
1666 	 */
1667 	if (load_module)
1668 		request_module("%s", op->name);
1669 	failure = false;
1670 	goto free;
1671 
1672  try_again:
1673 	/* try next, if any */
1674 	release_firmware(ucode_raw);
1675 	if (iwl_request_firmware(drv, false))
1676 		goto out_unbind;
1677 	goto free;
1678 
1679  out_free_fw:
1680 	release_firmware(ucode_raw);
1681  out_unbind:
1682 	complete(&drv->request_firmware_complete);
1683 	device_release_driver(drv->trans->dev);
1684 	/* drv has just been freed by the release */
1685 	failure = false;
1686  free:
1687 	if (failure)
1688 		iwl_dealloc_ucode(drv);
1689 
1690 	if (pieces) {
1691 		for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1692 			kfree(pieces->img[i].sec);
1693 		kfree(pieces->dbg_mem_tlv);
1694 		kfree(pieces);
1695 	}
1696 }
1697 
iwl_drv_start(struct iwl_trans * trans)1698 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1699 {
1700 	struct iwl_drv *drv;
1701 	int ret;
1702 
1703 	drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1704 	if (!drv) {
1705 		ret = -ENOMEM;
1706 		goto err;
1707 	}
1708 
1709 	drv->trans = trans;
1710 	drv->dev = trans->dev;
1711 
1712 	init_completion(&drv->request_firmware_complete);
1713 	INIT_LIST_HEAD(&drv->list);
1714 
1715 #ifdef CONFIG_IWLWIFI_DEBUGFS
1716 	/* Create the device debugfs entries. */
1717 	drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1718 					    iwl_dbgfs_root);
1719 
1720 	/* Create transport layer debugfs dir */
1721 	drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1722 #endif
1723 
1724 	drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1725 
1726 	ret = iwl_request_firmware(drv, true);
1727 	if (ret) {
1728 		IWL_ERR(trans, "Couldn't request the fw\n");
1729 		goto err_fw;
1730 	}
1731 
1732 	return drv;
1733 
1734 err_fw:
1735 #ifdef CONFIG_IWLWIFI_DEBUGFS
1736 	debugfs_remove_recursive(drv->dbgfs_drv);
1737 	iwl_dbg_tlv_free(drv->trans);
1738 #endif
1739 	kfree(drv);
1740 err:
1741 	return ERR_PTR(ret);
1742 }
1743 
iwl_drv_stop(struct iwl_drv * drv)1744 void iwl_drv_stop(struct iwl_drv *drv)
1745 {
1746 	wait_for_completion(&drv->request_firmware_complete);
1747 
1748 	_iwl_op_mode_stop(drv);
1749 
1750 	iwl_dealloc_ucode(drv);
1751 
1752 	mutex_lock(&iwlwifi_opmode_table_mtx);
1753 	/*
1754 	 * List is empty (this item wasn't added)
1755 	 * when firmware loading failed -- in that
1756 	 * case we can't remove it from any list.
1757 	 */
1758 	if (!list_empty(&drv->list))
1759 		list_del(&drv->list);
1760 	mutex_unlock(&iwlwifi_opmode_table_mtx);
1761 
1762 #ifdef CONFIG_IWLWIFI_DEBUGFS
1763 	drv->trans->ops->debugfs_cleanup(drv->trans);
1764 
1765 	debugfs_remove_recursive(drv->dbgfs_drv);
1766 #endif
1767 
1768 	iwl_dbg_tlv_free(drv->trans);
1769 
1770 	kfree(drv);
1771 }
1772 
1773 #define ENABLE_INI	(IWL_DBG_TLV_MAX_PRESET + 1)
1774 
1775 /* shared module parameters */
1776 struct iwl_mod_params iwlwifi_mod_params = {
1777 	.fw_restart = true,
1778 	.bt_coex_active = true,
1779 	.power_level = IWL_POWER_INDEX_1,
1780 	.uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1781 	.enable_ini = ENABLE_INI,
1782 	/* the rest are 0 by default */
1783 };
1784 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1785 
iwl_opmode_register(const char * name,const struct iwl_op_mode_ops * ops)1786 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1787 {
1788 	int i;
1789 	struct iwl_drv *drv;
1790 	struct iwlwifi_opmode_table *op;
1791 
1792 	mutex_lock(&iwlwifi_opmode_table_mtx);
1793 	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1794 		op = &iwlwifi_opmode_table[i];
1795 		if (strcmp(op->name, name))
1796 			continue;
1797 		op->ops = ops;
1798 		/* TODO: need to handle exceptional case */
1799 		list_for_each_entry(drv, &op->drv, list)
1800 			drv->op_mode = _iwl_op_mode_start(drv, op);
1801 
1802 		mutex_unlock(&iwlwifi_opmode_table_mtx);
1803 		return 0;
1804 	}
1805 	mutex_unlock(&iwlwifi_opmode_table_mtx);
1806 	return -EIO;
1807 }
1808 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1809 
iwl_opmode_deregister(const char * name)1810 void iwl_opmode_deregister(const char *name)
1811 {
1812 	int i;
1813 	struct iwl_drv *drv;
1814 
1815 	mutex_lock(&iwlwifi_opmode_table_mtx);
1816 	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1817 		if (strcmp(iwlwifi_opmode_table[i].name, name))
1818 			continue;
1819 		iwlwifi_opmode_table[i].ops = NULL;
1820 
1821 		/* call the stop routine for all devices */
1822 		list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1823 			_iwl_op_mode_stop(drv);
1824 
1825 		mutex_unlock(&iwlwifi_opmode_table_mtx);
1826 		return;
1827 	}
1828 	mutex_unlock(&iwlwifi_opmode_table_mtx);
1829 }
1830 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1831 
iwl_drv_init(void)1832 static int __init iwl_drv_init(void)
1833 {
1834 	int i, err;
1835 
1836 	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1837 		INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1838 
1839 	pr_info(DRV_DESCRIPTION "\n");
1840 
1841 #ifdef CONFIG_IWLWIFI_DEBUGFS
1842 	/* Create the root of iwlwifi debugfs subsystem. */
1843 	iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1844 #endif
1845 
1846 	err = iwl_pci_register_driver();
1847 	if (err)
1848 		goto cleanup_debugfs;
1849 
1850 	return 0;
1851 
1852 cleanup_debugfs:
1853 #ifdef CONFIG_IWLWIFI_DEBUGFS
1854 	debugfs_remove_recursive(iwl_dbgfs_root);
1855 #endif
1856 	return err;
1857 }
1858 module_init(iwl_drv_init);
1859 
iwl_drv_exit(void)1860 static void __exit iwl_drv_exit(void)
1861 {
1862 	iwl_pci_unregister_driver();
1863 
1864 #ifdef CONFIG_IWLWIFI_DEBUGFS
1865 	debugfs_remove_recursive(iwl_dbgfs_root);
1866 #endif
1867 }
1868 module_exit(iwl_drv_exit);
1869 
1870 #ifdef CONFIG_IWLWIFI_DEBUG
1871 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1872 MODULE_PARM_DESC(debug, "debug output mask");
1873 #endif
1874 
1875 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1876 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1877 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1878 MODULE_PARM_DESC(11n_disable,
1879 	"disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1880 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1881 MODULE_PARM_DESC(amsdu_size,
1882 		 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1883 		 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1884 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1885 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1886 
1887 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1888 MODULE_PARM_DESC(nvm_file, "NVM file name");
1889 
1890 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1891 MODULE_PARM_DESC(uapsd_disable,
1892 		 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1893 
enable_ini_set(const char * arg,const struct kernel_param * kp)1894 static int enable_ini_set(const char *arg, const struct kernel_param *kp)
1895 {
1896 	int ret = 0;
1897 	bool res;
1898 	__u32 new_enable_ini;
1899 
1900 	/* in case the argument type is a number */
1901 	ret = kstrtou32(arg, 0, &new_enable_ini);
1902 	if (!ret) {
1903 		if (new_enable_ini > ENABLE_INI) {
1904 			pr_err("enable_ini cannot be %d, in range 0-16\n", new_enable_ini);
1905 			return -EINVAL;
1906 		}
1907 		goto out;
1908 	}
1909 
1910 	/* in case the argument type is boolean */
1911 	ret = kstrtobool(arg, &res);
1912 	if (ret)
1913 		return ret;
1914 	new_enable_ini = (res ? ENABLE_INI : 0);
1915 
1916 out:
1917 	iwlwifi_mod_params.enable_ini = new_enable_ini;
1918 	return 0;
1919 }
1920 
1921 static const struct kernel_param_ops enable_ini_ops = {
1922 	.set = enable_ini_set
1923 };
1924 
1925 module_param_cb(enable_ini, &enable_ini_ops, &iwlwifi_mod_params.enable_ini, 0644);
1926 MODULE_PARM_DESC(enable_ini,
1927 		 "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,"
1928 		 "Debug INI TLV FW debug infrastructure (default: 16)");
1929 
1930 /*
1931  * set bt_coex_active to true, uCode will do kill/defer
1932  * every time the priority line is asserted (BT is sending signals on the
1933  * priority line in the PCIx).
1934  * set bt_coex_active to false, uCode will ignore the BT activity and
1935  * perform the normal operation
1936  *
1937  * User might experience transmit issue on some platform due to WiFi/BT
1938  * co-exist problem. The possible behaviors are:
1939  *   Able to scan and finding all the available AP
1940  *   Not able to associate with any AP
1941  * On those platforms, WiFi communication can be restored by set
1942  * "bt_coex_active" module parameter to "false"
1943  *
1944  * default: bt_coex_active = true (BT_COEX_ENABLE)
1945  */
1946 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1947 		   bool, 0444);
1948 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1949 
1950 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1951 MODULE_PARM_DESC(led_mode, "0=system default, "
1952 		"1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1953 
1954 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1955 MODULE_PARM_DESC(power_save,
1956 		 "enable WiFi power management (default: disable)");
1957 
1958 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1959 MODULE_PARM_DESC(power_level,
1960 		 "default power save level (range from 1 - 5, default: 1)");
1961 
1962 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1963 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1964 
1965 module_param_named(remove_when_gone,
1966 		   iwlwifi_mod_params.remove_when_gone, bool,
1967 		   0444);
1968 MODULE_PARM_DESC(remove_when_gone,
1969 		 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1970 
1971 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1972 		   S_IRUGO);
1973 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");
1974