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Merge tag 'linux-kselftest-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / fw.c
1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * All rights reserved.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 *
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
48 * distribution.
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *
65 *****************************************************************************/
66 #include <net/mac80211.h>
67 #include <linux/netdevice.h>
68
69 #include "iwl-trans.h"
70 #include "iwl-op-mode.h"
71 #include "iwl-fw.h"
72 #include "iwl-debug.h"
73 #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */
74 #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */
75 #include "iwl-prph.h"
76 #include "iwl-eeprom-parse.h"
77
78 #include "mvm.h"
79 #include "fw-dbg.h"
80 #include "iwl-phy-db.h"
81
82 #define MVM_UCODE_ALIVE_TIMEOUT HZ
83 #define MVM_UCODE_CALIB_TIMEOUT (2*HZ)
84
85 #define UCODE_VALID_OK cpu_to_le32(0x1)
86
87 struct iwl_mvm_alive_data {
88 bool valid;
89 u32 scd_base_addr;
90 };
91
92 static inline const struct fw_img *
93 iwl_get_ucode_image(struct iwl_mvm *mvm, enum iwl_ucode_type ucode_type)
94 {
95 if (ucode_type >= IWL_UCODE_TYPE_MAX)
96 return NULL;
97
98 return &mvm->fw->img[ucode_type];
99 }
100
101 static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant)
102 {
103 struct iwl_tx_ant_cfg_cmd tx_ant_cmd = {
104 .valid = cpu_to_le32(valid_tx_ant),
105 };
106
107 IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant);
108 return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, 0,
109 sizeof(tx_ant_cmd), &tx_ant_cmd);
110 }
111
112 static int iwl_send_rss_cfg_cmd(struct iwl_mvm *mvm)
113 {
114 int i;
115 struct iwl_rss_config_cmd cmd = {
116 .flags = cpu_to_le32(IWL_RSS_ENABLE),
117 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
118 IWL_RSS_HASH_TYPE_IPV4_UDP |
119 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
120 IWL_RSS_HASH_TYPE_IPV6_TCP |
121 IWL_RSS_HASH_TYPE_IPV6_UDP |
122 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
123 };
124
125 /* Do not direct RSS traffic to Q 0 which is our fallback queue */
126 for (i = 0; i < ARRAY_SIZE(cmd.indirection_table); i++)
127 cmd.indirection_table[i] =
128 1 + (i % (mvm->trans->num_rx_queues - 1));
129 netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
130
131 return iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, sizeof(cmd), &cmd);
132 }
133
134 void iwl_free_fw_paging(struct iwl_mvm *mvm)
135 {
136 int i;
137
138 if (!mvm->fw_paging_db[0].fw_paging_block)
139 return;
140
141 for (i = 0; i < NUM_OF_FW_PAGING_BLOCKS; i++) {
142 if (!mvm->fw_paging_db[i].fw_paging_block) {
143 IWL_DEBUG_FW(mvm,
144 "Paging: block %d already freed, continue to next page\n",
145 i);
146
147 continue;
148 }
149
150 __free_pages(mvm->fw_paging_db[i].fw_paging_block,
151 get_order(mvm->fw_paging_db[i].fw_paging_size));
152 mvm->fw_paging_db[i].fw_paging_block = NULL;
153 }
154 kfree(mvm->trans->paging_download_buf);
155 mvm->trans->paging_download_buf = NULL;
156 mvm->trans->paging_db = NULL;
157
158 memset(mvm->fw_paging_db, 0, sizeof(mvm->fw_paging_db));
159 }
160
161 static int iwl_fill_paging_mem(struct iwl_mvm *mvm, const struct fw_img *image)
162 {
163 int sec_idx, idx;
164 u32 offset = 0;
165
166 /*
167 * find where is the paging image start point:
168 * if CPU2 exist and it's in paging format, then the image looks like:
169 * CPU1 sections (2 or more)
170 * CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between CPU1 to CPU2
171 * CPU2 sections (not paged)
172 * PAGING_SEPARATOR_SECTION delimiter - separate between CPU2
173 * non paged to CPU2 paging sec
174 * CPU2 paging CSS
175 * CPU2 paging image (including instruction and data)
176 */
177 for (sec_idx = 0; sec_idx < IWL_UCODE_SECTION_MAX; sec_idx++) {
178 if (image->sec[sec_idx].offset == PAGING_SEPARATOR_SECTION) {
179 sec_idx++;
180 break;
181 }
182 }
183
184 /*
185 * If paging is enabled there should be at least 2 more sections left
186 * (one for CSS and one for Paging data)
187 */
188 if (sec_idx >= ARRAY_SIZE(image->sec) - 1) {
189 IWL_ERR(mvm, "Paging: Missing CSS and/or paging sections\n");
190 iwl_free_fw_paging(mvm);
191 return -EINVAL;
192 }
193
194 /* copy the CSS block to the dram */
195 IWL_DEBUG_FW(mvm, "Paging: load paging CSS to FW, sec = %d\n",
196 sec_idx);
197
198 memcpy(page_address(mvm->fw_paging_db[0].fw_paging_block),
199 image->sec[sec_idx].data,
200 mvm->fw_paging_db[0].fw_paging_size);
201
202 IWL_DEBUG_FW(mvm,
203 "Paging: copied %d CSS bytes to first block\n",
204 mvm->fw_paging_db[0].fw_paging_size);
205
206 sec_idx++;
207
208 /*
209 * copy the paging blocks to the dram
210 * loop index start from 1 since that CSS block already copied to dram
211 * and CSS index is 0.
212 * loop stop at num_of_paging_blk since that last block is not full.
213 */
214 for (idx = 1; idx < mvm->num_of_paging_blk; idx++) {
215 memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
216 image->sec[sec_idx].data + offset,
217 mvm->fw_paging_db[idx].fw_paging_size);
218
219 IWL_DEBUG_FW(mvm,
220 "Paging: copied %d paging bytes to block %d\n",
221 mvm->fw_paging_db[idx].fw_paging_size,
222 idx);
223
224 offset += mvm->fw_paging_db[idx].fw_paging_size;
225 }
226
227 /* copy the last paging block */
228 if (mvm->num_of_pages_in_last_blk > 0) {
229 memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
230 image->sec[sec_idx].data + offset,
231 FW_PAGING_SIZE * mvm->num_of_pages_in_last_blk);
232
233 IWL_DEBUG_FW(mvm,
234 "Paging: copied %d pages in the last block %d\n",
235 mvm->num_of_pages_in_last_blk, idx);
236 }
237
238 return 0;
239 }
240
241 static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
242 const struct fw_img *image)
243 {
244 struct page *block;
245 dma_addr_t phys = 0;
246 int blk_idx = 0;
247 int order, num_of_pages;
248 int dma_enabled;
249
250 if (mvm->fw_paging_db[0].fw_paging_block)
251 return 0;
252
253 dma_enabled = is_device_dma_capable(mvm->trans->dev);
254
255 /* ensure BLOCK_2_EXP_SIZE is power of 2 of PAGING_BLOCK_SIZE */
256 BUILD_BUG_ON(BIT(BLOCK_2_EXP_SIZE) != PAGING_BLOCK_SIZE);
257
258 num_of_pages = image->paging_mem_size / FW_PAGING_SIZE;
259 mvm->num_of_paging_blk = ((num_of_pages - 1) /
260 NUM_OF_PAGE_PER_GROUP) + 1;
261
262 mvm->num_of_pages_in_last_blk =
263 num_of_pages -
264 NUM_OF_PAGE_PER_GROUP * (mvm->num_of_paging_blk - 1);
265
266 IWL_DEBUG_FW(mvm,
267 "Paging: allocating mem for %d paging blocks, each block holds 8 pages, last block holds %d pages\n",
268 mvm->num_of_paging_blk,
269 mvm->num_of_pages_in_last_blk);
270
271 /* allocate block of 4Kbytes for paging CSS */
272 order = get_order(FW_PAGING_SIZE);
273 block = alloc_pages(GFP_KERNEL, order);
274 if (!block) {
275 /* free all the previous pages since we failed */
276 iwl_free_fw_paging(mvm);
277 return -ENOMEM;
278 }
279
280 mvm->fw_paging_db[blk_idx].fw_paging_block = block;
281 mvm->fw_paging_db[blk_idx].fw_paging_size = FW_PAGING_SIZE;
282
283 if (dma_enabled) {
284 phys = dma_map_page(mvm->trans->dev, block, 0,
285 PAGE_SIZE << order, DMA_BIDIRECTIONAL);
286 if (dma_mapping_error(mvm->trans->dev, phys)) {
287 /*
288 * free the previous pages and the current one since
289 * we failed to map_page.
290 */
291 iwl_free_fw_paging(mvm);
292 return -ENOMEM;
293 }
294 mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
295 } else {
296 mvm->fw_paging_db[blk_idx].fw_paging_phys = PAGING_ADDR_SIG |
297 blk_idx << BLOCK_2_EXP_SIZE;
298 }
299
300 IWL_DEBUG_FW(mvm,
301 "Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",
302 order);
303
304 /*
305 * allocate blocks in dram.
306 * since that CSS allocated in fw_paging_db[0] loop start from index 1
307 */
308 for (blk_idx = 1; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
309 /* allocate block of PAGING_BLOCK_SIZE (32K) */
310 order = get_order(PAGING_BLOCK_SIZE);
311 block = alloc_pages(GFP_KERNEL, order);
312 if (!block) {
313 /* free all the previous pages since we failed */
314 iwl_free_fw_paging(mvm);
315 return -ENOMEM;
316 }
317
318 mvm->fw_paging_db[blk_idx].fw_paging_block = block;
319 mvm->fw_paging_db[blk_idx].fw_paging_size = PAGING_BLOCK_SIZE;
320
321 if (dma_enabled) {
322 phys = dma_map_page(mvm->trans->dev, block, 0,
323 PAGE_SIZE << order,
324 DMA_BIDIRECTIONAL);
325 if (dma_mapping_error(mvm->trans->dev, phys)) {
326 /*
327 * free the previous pages and the current one
328 * since we failed to map_page.
329 */
330 iwl_free_fw_paging(mvm);
331 return -ENOMEM;
332 }
333 mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
334 } else {
335 mvm->fw_paging_db[blk_idx].fw_paging_phys =
336 PAGING_ADDR_SIG |
337 blk_idx << BLOCK_2_EXP_SIZE;
338 }
339
340 IWL_DEBUG_FW(mvm,
341 "Paging: allocated 32K bytes (order %d) for firmware paging.\n",
342 order);
343 }
344
345 return 0;
346 }
347
348 static int iwl_save_fw_paging(struct iwl_mvm *mvm,
349 const struct fw_img *fw)
350 {
351 int ret;
352
353 ret = iwl_alloc_fw_paging_mem(mvm, fw);
354 if (ret)
355 return ret;
356
357 return iwl_fill_paging_mem(mvm, fw);
358 }
359
360 /* send paging cmd to FW in case CPU2 has paging image */
361 static int iwl_send_paging_cmd(struct iwl_mvm *mvm, const struct fw_img *fw)
362 {
363 int blk_idx;
364 __le32 dev_phy_addr;
365 struct iwl_fw_paging_cmd fw_paging_cmd = {
366 .flags =
367 cpu_to_le32(PAGING_CMD_IS_SECURED |
368 PAGING_CMD_IS_ENABLED |
369 (mvm->num_of_pages_in_last_blk <<
370 PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
371 .block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),
372 .block_num = cpu_to_le32(mvm->num_of_paging_blk),
373 };
374
375 /* loop for for all paging blocks + CSS block */
376 for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
377 dev_phy_addr =
378 cpu_to_le32(mvm->fw_paging_db[blk_idx].fw_paging_phys >>
379 PAGE_2_EXP_SIZE);
380 fw_paging_cmd.device_phy_addr[blk_idx] = dev_phy_addr;
381 }
382
383 return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(FW_PAGING_BLOCK_CMD,
384 IWL_ALWAYS_LONG_GROUP, 0),
385 0, sizeof(fw_paging_cmd), &fw_paging_cmd);
386 }
387
388 /*
389 * Send paging item cmd to FW in case CPU2 has paging image
390 */
391 static int iwl_trans_get_paging_item(struct iwl_mvm *mvm)
392 {
393 int ret;
394 struct iwl_fw_get_item_cmd fw_get_item_cmd = {
395 .item_id = cpu_to_le32(IWL_FW_ITEM_ID_PAGING),
396 };
397
398 struct iwl_fw_get_item_resp *item_resp;
399 struct iwl_host_cmd cmd = {
400 .id = iwl_cmd_id(FW_GET_ITEM_CMD, IWL_ALWAYS_LONG_GROUP, 0),
401 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
402 .data = { &fw_get_item_cmd, },
403 };
404
405 cmd.len[0] = sizeof(struct iwl_fw_get_item_cmd);
406
407 ret = iwl_mvm_send_cmd(mvm, &cmd);
408 if (ret) {
409 IWL_ERR(mvm,
410 "Paging: Failed to send FW_GET_ITEM_CMD cmd (err = %d)\n",
411 ret);
412 return ret;
413 }
414
415 item_resp = (void *)((struct iwl_rx_packet *)cmd.resp_pkt)->data;
416 if (item_resp->item_id != cpu_to_le32(IWL_FW_ITEM_ID_PAGING)) {
417 IWL_ERR(mvm,
418 "Paging: got wrong item in FW_GET_ITEM_CMD resp (item_id = %u)\n",
419 le32_to_cpu(item_resp->item_id));
420 ret = -EIO;
421 goto exit;
422 }
423
424 /* Add an extra page for headers */
425 mvm->trans->paging_download_buf = kzalloc(PAGING_BLOCK_SIZE +
426 FW_PAGING_SIZE,
427 GFP_KERNEL);
428 if (!mvm->trans->paging_download_buf) {
429 ret = -ENOMEM;
430 goto exit;
431 }
432 mvm->trans->paging_req_addr = le32_to_cpu(item_resp->item_val);
433 mvm->trans->paging_db = mvm->fw_paging_db;
434 IWL_DEBUG_FW(mvm,
435 "Paging: got paging request address (paging_req_addr 0x%08x)\n",
436 mvm->trans->paging_req_addr);
437
438 exit:
439 iwl_free_resp(&cmd);
440
441 return ret;
442 }
443
444 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
445 struct iwl_rx_packet *pkt, void *data)
446 {
447 struct iwl_mvm *mvm =
448 container_of(notif_wait, struct iwl_mvm, notif_wait);
449 struct iwl_mvm_alive_data *alive_data = data;
450 struct mvm_alive_resp_ver1 *palive1;
451 struct mvm_alive_resp_ver2 *palive2;
452 struct mvm_alive_resp *palive;
453
454 if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive1)) {
455 palive1 = (void *)pkt->data;
456
457 mvm->support_umac_log = false;
458 mvm->error_event_table =
459 le32_to_cpu(palive1->error_event_table_ptr);
460 mvm->log_event_table =
461 le32_to_cpu(palive1->log_event_table_ptr);
462 alive_data->scd_base_addr = le32_to_cpu(palive1->scd_base_ptr);
463
464 alive_data->valid = le16_to_cpu(palive1->status) ==
465 IWL_ALIVE_STATUS_OK;
466 IWL_DEBUG_FW(mvm,
467 "Alive VER1 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
468 le16_to_cpu(palive1->status), palive1->ver_type,
469 palive1->ver_subtype, palive1->flags);
470 } else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive2)) {
471 palive2 = (void *)pkt->data;
472
473 mvm->error_event_table =
474 le32_to_cpu(palive2->error_event_table_ptr);
475 mvm->log_event_table =
476 le32_to_cpu(palive2->log_event_table_ptr);
477 alive_data->scd_base_addr = le32_to_cpu(palive2->scd_base_ptr);
478 mvm->umac_error_event_table =
479 le32_to_cpu(palive2->error_info_addr);
480 mvm->sf_space.addr = le32_to_cpu(palive2->st_fwrd_addr);
481 mvm->sf_space.size = le32_to_cpu(palive2->st_fwrd_size);
482
483 alive_data->valid = le16_to_cpu(palive2->status) ==
484 IWL_ALIVE_STATUS_OK;
485 if (mvm->umac_error_event_table)
486 mvm->support_umac_log = true;
487
488 IWL_DEBUG_FW(mvm,
489 "Alive VER2 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
490 le16_to_cpu(palive2->status), palive2->ver_type,
491 palive2->ver_subtype, palive2->flags);
492
493 IWL_DEBUG_FW(mvm,
494 "UMAC version: Major - 0x%x, Minor - 0x%x\n",
495 palive2->umac_major, palive2->umac_minor);
496 } else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) {
497 palive = (void *)pkt->data;
498
499 mvm->error_event_table =
500 le32_to_cpu(palive->error_event_table_ptr);
501 mvm->log_event_table =
502 le32_to_cpu(palive->log_event_table_ptr);
503 alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr);
504 mvm->umac_error_event_table =
505 le32_to_cpu(palive->error_info_addr);
506 mvm->sf_space.addr = le32_to_cpu(palive->st_fwrd_addr);
507 mvm->sf_space.size = le32_to_cpu(palive->st_fwrd_size);
508
509 alive_data->valid = le16_to_cpu(palive->status) ==
510 IWL_ALIVE_STATUS_OK;
511 if (mvm->umac_error_event_table)
512 mvm->support_umac_log = true;
513
514 IWL_DEBUG_FW(mvm,
515 "Alive VER3 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
516 le16_to_cpu(palive->status), palive->ver_type,
517 palive->ver_subtype, palive->flags);
518
519 IWL_DEBUG_FW(mvm,
520 "UMAC version: Major - 0x%x, Minor - 0x%x\n",
521 le32_to_cpu(palive->umac_major),
522 le32_to_cpu(palive->umac_minor));
523 }
524
525 return true;
526 }
527
528 static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait,
529 struct iwl_rx_packet *pkt, void *data)
530 {
531 struct iwl_phy_db *phy_db = data;
532
533 if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) {
534 WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);
535 return true;
536 }
537
538 WARN_ON(iwl_phy_db_set_section(phy_db, pkt));
539
540 return false;
541 }
542
543 static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
544 enum iwl_ucode_type ucode_type)
545 {
546 struct iwl_notification_wait alive_wait;
547 struct iwl_mvm_alive_data alive_data;
548 const struct fw_img *fw;
549 int ret, i;
550 enum iwl_ucode_type old_type = mvm->cur_ucode;
551 static const u16 alive_cmd[] = { MVM_ALIVE };
552 struct iwl_sf_region st_fwrd_space;
553
554 if (ucode_type == IWL_UCODE_REGULAR &&
555 iwl_fw_dbg_conf_usniffer(mvm->fw, FW_DBG_START_FROM_ALIVE) &&
556 !(fw_has_capa(&mvm->fw->ucode_capa,
557 IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED)))
558 fw = iwl_get_ucode_image(mvm, IWL_UCODE_REGULAR_USNIFFER);
559 else
560 fw = iwl_get_ucode_image(mvm, ucode_type);
561 if (WARN_ON(!fw))
562 return -EINVAL;
563 mvm->cur_ucode = ucode_type;
564 mvm->ucode_loaded = false;
565
566 iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
567 alive_cmd, ARRAY_SIZE(alive_cmd),
568 iwl_alive_fn, &alive_data);
569
570 ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
571 if (ret) {
572 mvm->cur_ucode = old_type;
573 iwl_remove_notification(&mvm->notif_wait, &alive_wait);
574 return ret;
575 }
576
577 /*
578 * Some things may run in the background now, but we
579 * just wait for the ALIVE notification here.
580 */
581 ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait,
582 MVM_UCODE_ALIVE_TIMEOUT);
583 if (ret) {
584 if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
585 IWL_ERR(mvm,
586 "SecBoot CPU1 Status: 0x%x, CPU2 Status: 0x%x\n",
587 iwl_read_prph(mvm->trans, SB_CPU_1_STATUS),
588 iwl_read_prph(mvm->trans, SB_CPU_2_STATUS));
589 mvm->cur_ucode = old_type;
590 return ret;
591 }
592
593 if (!alive_data.valid) {
594 IWL_ERR(mvm, "Loaded ucode is not valid!\n");
595 mvm->cur_ucode = old_type;
596 return -EIO;
597 }
598
599 /*
600 * update the sdio allocation according to the pointer we get in the
601 * alive notification.
602 */
603 st_fwrd_space.addr = mvm->sf_space.addr;
604 st_fwrd_space.size = mvm->sf_space.size;
605 ret = iwl_trans_update_sf(mvm->trans, &st_fwrd_space);
606 if (ret) {
607 IWL_ERR(mvm, "Failed to update SF size. ret %d\n", ret);
608 return ret;
609 }
610
611 iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr);
612
613 /*
614 * configure and operate fw paging mechanism.
615 * driver configures the paging flow only once, CPU2 paging image
616 * included in the IWL_UCODE_INIT image.
617 */
618 if (fw->paging_mem_size) {
619 /*
620 * When dma is not enabled, the driver needs to copy / write
621 * the downloaded / uploaded page to / from the smem.
622 * This gets the location of the place were the pages are
623 * stored.
624 */
625 if (!is_device_dma_capable(mvm->trans->dev)) {
626 ret = iwl_trans_get_paging_item(mvm);
627 if (ret) {
628 IWL_ERR(mvm, "failed to get FW paging item\n");
629 return ret;
630 }
631 }
632
633 ret = iwl_save_fw_paging(mvm, fw);
634 if (ret) {
635 IWL_ERR(mvm, "failed to save the FW paging image\n");
636 return ret;
637 }
638
639 ret = iwl_send_paging_cmd(mvm, fw);
640 if (ret) {
641 IWL_ERR(mvm, "failed to send the paging cmd\n");
642 iwl_free_fw_paging(mvm);
643 return ret;
644 }
645 }
646
647 /*
648 * Note: all the queues are enabled as part of the interface
649 * initialization, but in firmware restart scenarios they
650 * could be stopped, so wake them up. In firmware restart,
651 * mac80211 will have the queues stopped as well until the
652 * reconfiguration completes. During normal startup, they
653 * will be empty.
654 */
655
656 memset(&mvm->queue_info, 0, sizeof(mvm->queue_info));
657 if (iwl_mvm_is_dqa_supported(mvm))
658 mvm->queue_info[IWL_MVM_DQA_CMD_QUEUE].hw_queue_refcount = 1;
659 else
660 mvm->queue_info[IWL_MVM_CMD_QUEUE].hw_queue_refcount = 1;
661
662 for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
663 atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
664
665 mvm->ucode_loaded = true;
666
667 return 0;
668 }
669
670 static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
671 {
672 struct iwl_phy_cfg_cmd phy_cfg_cmd;
673 enum iwl_ucode_type ucode_type = mvm->cur_ucode;
674
675 /* Set parameters */
676 phy_cfg_cmd.phy_cfg = cpu_to_le32(iwl_mvm_get_phy_config(mvm));
677 phy_cfg_cmd.calib_control.event_trigger =
678 mvm->fw->default_calib[ucode_type].event_trigger;
679 phy_cfg_cmd.calib_control.flow_trigger =
680 mvm->fw->default_calib[ucode_type].flow_trigger;
681
682 IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n",
683 phy_cfg_cmd.phy_cfg);
684
685 return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, 0,
686 sizeof(phy_cfg_cmd), &phy_cfg_cmd);
687 }
688
689 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
690 {
691 struct iwl_notification_wait calib_wait;
692 static const u16 init_complete[] = {
693 INIT_COMPLETE_NOTIF,
694 CALIB_RES_NOTIF_PHY_DB
695 };
696 int ret;
697
698 lockdep_assert_held(&mvm->mutex);
699
700 if (WARN_ON_ONCE(mvm->calibrating))
701 return 0;
702
703 iwl_init_notification_wait(&mvm->notif_wait,
704 &calib_wait,
705 init_complete,
706 ARRAY_SIZE(init_complete),
707 iwl_wait_phy_db_entry,
708 mvm->phy_db);
709
710 /* Will also start the device */
711 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT);
712 if (ret) {
713 IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret);
714 goto error;
715 }
716
717 ret = iwl_send_bt_init_conf(mvm);
718 if (ret)
719 goto error;
720
721 /* Read the NVM only at driver load time, no need to do this twice */
722 if (read_nvm) {
723 /* Read nvm */
724 ret = iwl_nvm_init(mvm, true);
725 if (ret) {
726 IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
727 goto error;
728 }
729 }
730
731 /* In case we read the NVM from external file, load it to the NIC */
732 if (mvm->nvm_file_name)
733 iwl_mvm_load_nvm_to_nic(mvm);
734
735 ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
736 WARN_ON(ret);
737
738 /*
739 * abort after reading the nvm in case RF Kill is on, we will complete
740 * the init seq later when RF kill will switch to off
741 */
742 if (iwl_mvm_is_radio_hw_killed(mvm)) {
743 IWL_DEBUG_RF_KILL(mvm,
744 "jump over all phy activities due to RF kill\n");
745 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
746 ret = 1;
747 goto out;
748 }
749
750 mvm->calibrating = true;
751
752 /* Send TX valid antennas before triggering calibrations */
753 ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
754 if (ret)
755 goto error;
756
757 /*
758 * Send phy configurations command to init uCode
759 * to start the 16.0 uCode init image internal calibrations.
760 */
761 ret = iwl_send_phy_cfg_cmd(mvm);
762 if (ret) {
763 IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n",
764 ret);
765 goto error;
766 }
767
768 /*
769 * Some things may run in the background now, but we
770 * just wait for the calibration complete notification.
771 */
772 ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
773 MVM_UCODE_CALIB_TIMEOUT);
774
775 if (ret && iwl_mvm_is_radio_hw_killed(mvm)) {
776 IWL_DEBUG_RF_KILL(mvm, "RFKILL while calibrating.\n");
777 ret = 1;
778 }
779 goto out;
780
781 error:
782 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
783 out:
784 mvm->calibrating = false;
785 if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
786 /* we want to debug INIT and we have no NVM - fake */
787 mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
788 sizeof(struct ieee80211_channel) +
789 sizeof(struct ieee80211_rate),
790 GFP_KERNEL);
791 if (!mvm->nvm_data)
792 return -ENOMEM;
793 mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
794 mvm->nvm_data->bands[0].n_channels = 1;
795 mvm->nvm_data->bands[0].n_bitrates = 1;
796 mvm->nvm_data->bands[0].bitrates =
797 (void *)mvm->nvm_data->channels + 1;
798 mvm->nvm_data->bands[0].bitrates->hw_value = 10;
799 }
800
801 return ret;
802 }
803
804 static void iwl_mvm_get_shared_mem_conf(struct iwl_mvm *mvm)
805 {
806 struct iwl_host_cmd cmd = {
807 .flags = CMD_WANT_SKB,
808 .data = { NULL, },
809 .len = { 0, },
810 };
811 struct iwl_shared_mem_cfg *mem_cfg;
812 struct iwl_rx_packet *pkt;
813 u32 i;
814
815 lockdep_assert_held(&mvm->mutex);
816
817 if (fw_has_capa(&mvm->fw->ucode_capa,
818 IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG))
819 cmd.id = iwl_cmd_id(SHARED_MEM_CFG_CMD, SYSTEM_GROUP, 0);
820 else
821 cmd.id = SHARED_MEM_CFG;
822
823 if (WARN_ON(iwl_mvm_send_cmd(mvm, &cmd)))
824 return;
825
826 pkt = cmd.resp_pkt;
827 mem_cfg = (void *)pkt->data;
828
829 mvm->shared_mem_cfg.shared_mem_addr =
830 le32_to_cpu(mem_cfg->shared_mem_addr);
831 mvm->shared_mem_cfg.shared_mem_size =
832 le32_to_cpu(mem_cfg->shared_mem_size);
833 mvm->shared_mem_cfg.sample_buff_addr =
834 le32_to_cpu(mem_cfg->sample_buff_addr);
835 mvm->shared_mem_cfg.sample_buff_size =
836 le32_to_cpu(mem_cfg->sample_buff_size);
837 mvm->shared_mem_cfg.txfifo_addr = le32_to_cpu(mem_cfg->txfifo_addr);
838 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++)
839 mvm->shared_mem_cfg.txfifo_size[i] =
840 le32_to_cpu(mem_cfg->txfifo_size[i]);
841 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++)
842 mvm->shared_mem_cfg.rxfifo_size[i] =
843 le32_to_cpu(mem_cfg->rxfifo_size[i]);
844 mvm->shared_mem_cfg.page_buff_addr =
845 le32_to_cpu(mem_cfg->page_buff_addr);
846 mvm->shared_mem_cfg.page_buff_size =
847 le32_to_cpu(mem_cfg->page_buff_size);
848
849 /* new API has more data */
850 if (fw_has_capa(&mvm->fw->ucode_capa,
851 IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) {
852 mvm->shared_mem_cfg.rxfifo_addr =
853 le32_to_cpu(mem_cfg->rxfifo_addr);
854 mvm->shared_mem_cfg.internal_txfifo_addr =
855 le32_to_cpu(mem_cfg->internal_txfifo_addr);
856
857 BUILD_BUG_ON(sizeof(mvm->shared_mem_cfg.internal_txfifo_size) !=
858 sizeof(mem_cfg->internal_txfifo_size));
859
860 for (i = 0;
861 i < ARRAY_SIZE(mvm->shared_mem_cfg.internal_txfifo_size);
862 i++)
863 mvm->shared_mem_cfg.internal_txfifo_size[i] =
864 le32_to_cpu(mem_cfg->internal_txfifo_size[i]);
865 }
866
867 IWL_DEBUG_INFO(mvm, "SHARED MEM CFG: got memory offsets/sizes\n");
868
869 iwl_free_resp(&cmd);
870 }
871
872 static int iwl_mvm_config_ltr(struct iwl_mvm *mvm)
873 {
874 struct iwl_ltr_config_cmd cmd = {
875 .flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
876 };
877
878 if (!mvm->trans->ltr_enabled)
879 return 0;
880
881 return iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
882 sizeof(cmd), &cmd);
883 }
884
885 int iwl_mvm_up(struct iwl_mvm *mvm)
886 {
887 int ret, i;
888 struct ieee80211_channel *chan;
889 struct cfg80211_chan_def chandef;
890
891 lockdep_assert_held(&mvm->mutex);
892
893 ret = iwl_trans_start_hw(mvm->trans);
894 if (ret)
895 return ret;
896
897 /*
898 * If we haven't completed the run of the init ucode during
899 * module loading, load init ucode now
900 * (for example, if we were in RFKILL)
901 */
902 ret = iwl_run_init_mvm_ucode(mvm, false);
903 if (ret && !iwlmvm_mod_params.init_dbg) {
904 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
905 /* this can't happen */
906 if (WARN_ON(ret > 0))
907 ret = -ERFKILL;
908 goto error;
909 }
910 if (!iwlmvm_mod_params.init_dbg) {
911 /*
912 * Stop and start the transport without entering low power
913 * mode. This will save the state of other components on the
914 * device that are triggered by the INIT firwmare (MFUART).
915 */
916 _iwl_trans_stop_device(mvm->trans, false);
917 ret = _iwl_trans_start_hw(mvm->trans, false);
918 if (ret)
919 goto error;
920 }
921
922 if (iwlmvm_mod_params.init_dbg)
923 return 0;
924
925 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
926 if (ret) {
927 IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
928 goto error;
929 }
930
931 iwl_mvm_get_shared_mem_conf(mvm);
932
933 ret = iwl_mvm_sf_update(mvm, NULL, false);
934 if (ret)
935 IWL_ERR(mvm, "Failed to initialize Smart Fifo\n");
936
937 mvm->fw_dbg_conf = FW_DBG_INVALID;
938 /* if we have a destination, assume EARLY START */
939 if (mvm->fw->dbg_dest_tlv)
940 mvm->fw_dbg_conf = FW_DBG_START_FROM_ALIVE;
941 iwl_mvm_start_fw_dbg_conf(mvm, FW_DBG_START_FROM_ALIVE);
942
943 ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
944 if (ret)
945 goto error;
946
947 ret = iwl_send_bt_init_conf(mvm);
948 if (ret)
949 goto error;
950
951 /* Send phy db control command and then phy db calibration*/
952 ret = iwl_send_phy_db_data(mvm->phy_db);
953 if (ret)
954 goto error;
955
956 ret = iwl_send_phy_cfg_cmd(mvm);
957 if (ret)
958 goto error;
959
960 /* Init RSS configuration */
961 if (iwl_mvm_has_new_rx_api(mvm)) {
962 ret = iwl_send_rss_cfg_cmd(mvm);
963 if (ret) {
964 IWL_ERR(mvm, "Failed to configure RSS queues: %d\n",
965 ret);
966 goto error;
967 }
968 }
969
970 /* init the fw <-> mac80211 STA mapping */
971 for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
972 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
973
974 mvm->tdls_cs.peer.sta_id = IWL_MVM_STATION_COUNT;
975
976 /* reset quota debouncing buffer - 0xff will yield invalid data */
977 memset(&mvm->last_quota_cmd, 0xff, sizeof(mvm->last_quota_cmd));
978
979 /* Add auxiliary station for scanning */
980 ret = iwl_mvm_add_aux_sta(mvm);
981 if (ret)
982 goto error;
983
984 /* Add all the PHY contexts */
985 chan = &mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]->channels[0];
986 cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
987 for (i = 0; i < NUM_PHY_CTX; i++) {
988 /*
989 * The channel used here isn't relevant as it's
990 * going to be overwritten in the other flows.
991 * For now use the first channel we have.
992 */
993 ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i],
994 &chandef, 1, 1);
995 if (ret)
996 goto error;
997 }
998
999 #ifdef CONFIG_THERMAL
1000 if (iwl_mvm_is_tt_in_fw(mvm)) {
1001 /* in order to give the responsibility of ct-kill and
1002 * TX backoff to FW we need to send empty temperature reporting
1003 * cmd during init time
1004 */
1005 iwl_mvm_send_temp_report_ths_cmd(mvm);
1006 } else {
1007 /* Initialize tx backoffs to the minimal possible */
1008 iwl_mvm_tt_tx_backoff(mvm, 0);
1009 }
1010
1011 /* TODO: read the budget from BIOS / Platform NVM */
1012 if (iwl_mvm_is_ctdp_supported(mvm) && mvm->cooling_dev.cur_state > 0)
1013 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START,
1014 mvm->cooling_dev.cur_state);
1015 #else
1016 /* Initialize tx backoffs to the minimal possible */
1017 iwl_mvm_tt_tx_backoff(mvm, 0);
1018 #endif
1019
1020 WARN_ON(iwl_mvm_config_ltr(mvm));
1021
1022 ret = iwl_mvm_power_update_device(mvm);
1023 if (ret)
1024 goto error;
1025
1026 /*
1027 * RTNL is not taken during Ct-kill, but we don't need to scan/Tx
1028 * anyway, so don't init MCC.
1029 */
1030 if (!test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) {
1031 ret = iwl_mvm_init_mcc(mvm);
1032 if (ret)
1033 goto error;
1034 }
1035
1036 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1037 mvm->scan_type = IWL_SCAN_TYPE_NOT_SET;
1038 ret = iwl_mvm_config_scan(mvm);
1039 if (ret)
1040 goto error;
1041 }
1042
1043 if (iwl_mvm_is_csum_supported(mvm) &&
1044 mvm->cfg->features & NETIF_F_RXCSUM)
1045 iwl_trans_write_prph(mvm->trans, RX_EN_CSUM, 0x3);
1046
1047 /* allow FW/transport low power modes if not during restart */
1048 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1049 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1050
1051 IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
1052 return 0;
1053 error:
1054 iwl_mvm_stop_device(mvm);
1055 return ret;
1056 }
1057
1058 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm)
1059 {
1060 int ret, i;
1061
1062 lockdep_assert_held(&mvm->mutex);
1063
1064 ret = iwl_trans_start_hw(mvm->trans);
1065 if (ret)
1066 return ret;
1067
1068 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_WOWLAN);
1069 if (ret) {
1070 IWL_ERR(mvm, "Failed to start WoWLAN firmware: %d\n", ret);
1071 goto error;
1072 }
1073
1074 ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
1075 if (ret)
1076 goto error;
1077
1078 /* Send phy db control command and then phy db calibration*/
1079 ret = iwl_send_phy_db_data(mvm->phy_db);
1080 if (ret)
1081 goto error;
1082
1083 ret = iwl_send_phy_cfg_cmd(mvm);
1084 if (ret)
1085 goto error;
1086
1087 /* init the fw <-> mac80211 STA mapping */
1088 for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
1089 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
1090
1091 /* Add auxiliary station for scanning */
1092 ret = iwl_mvm_add_aux_sta(mvm);
1093 if (ret)
1094 goto error;
1095
1096 return 0;
1097 error:
1098 iwl_mvm_stop_device(mvm);
1099 return ret;
1100 }
1101
1102 void iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
1103 struct iwl_rx_cmd_buffer *rxb)
1104 {
1105 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1106 struct iwl_card_state_notif *card_state_notif = (void *)pkt->data;
1107 u32 flags = le32_to_cpu(card_state_notif->flags);
1108
1109 IWL_DEBUG_RF_KILL(mvm, "Card state received: HW:%s SW:%s CT:%s\n",
1110 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
1111 (flags & SW_CARD_DISABLED) ? "Kill" : "On",
1112 (flags & CT_KILL_CARD_DISABLED) ?
1113 "Reached" : "Not reached");
1114 }
1115
1116 void iwl_mvm_rx_mfuart_notif(struct iwl_mvm *mvm,
1117 struct iwl_rx_cmd_buffer *rxb)
1118 {
1119 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1120 struct iwl_mfuart_load_notif *mfuart_notif = (void *)pkt->data;
1121
1122 IWL_DEBUG_INFO(mvm,
1123 "MFUART: installed ver: 0x%08x, external ver: 0x%08x, status: 0x%08x, duration: 0x%08x\n",
1124 le32_to_cpu(mfuart_notif->installed_ver),
1125 le32_to_cpu(mfuart_notif->external_ver),
1126 le32_to_cpu(mfuart_notif->status),
1127 le32_to_cpu(mfuart_notif->duration));
1128 }
Linux kernel - Deliverables
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