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