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iwlwifi: mvm: capture connection loss as part of MLME trigger
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / utils.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 - 2014 Intel Mobile Communications GmbH
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65 #include <net/mac80211.h>
66
67 #include "iwl-debug.h"
68 #include "iwl-io.h"
69 #include "iwl-prph.h"
70
71 #include "mvm.h"
72 #include "fw-api-rs.h"
73
74 /*
75 * Will return 0 even if the cmd failed when RFKILL is asserted unless
76 * CMD_WANT_SKB is set in cmd->flags.
77 */
78 int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd)
79 {
80 int ret;
81
82 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP)
83 if (WARN_ON(mvm->d3_test_active))
84 return -EIO;
85 #endif
86
87 /*
88 * Synchronous commands from this op-mode must hold
89 * the mutex, this ensures we don't try to send two
90 * (or more) synchronous commands at a time.
91 */
92 if (!(cmd->flags & CMD_ASYNC))
93 lockdep_assert_held(&mvm->mutex);
94
95 ret = iwl_trans_send_cmd(mvm->trans, cmd);
96
97 /*
98 * If the caller wants the SKB, then don't hide any problems, the
99 * caller might access the response buffer which will be NULL if
100 * the command failed.
101 */
102 if (cmd->flags & CMD_WANT_SKB)
103 return ret;
104
105 /* Silently ignore failures if RFKILL is asserted */
106 if (!ret || ret == -ERFKILL)
107 return 0;
108 return ret;
109 }
110
111 int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
112 u32 flags, u16 len, const void *data)
113 {
114 struct iwl_host_cmd cmd = {
115 .id = id,
116 .len = { len, },
117 .data = { data, },
118 .flags = flags,
119 };
120
121 return iwl_mvm_send_cmd(mvm, &cmd);
122 }
123
124 /*
125 * We assume that the caller set the status to the success value
126 */
127 int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd,
128 u32 *status)
129 {
130 struct iwl_rx_packet *pkt;
131 struct iwl_cmd_response *resp;
132 int ret, resp_len;
133
134 lockdep_assert_held(&mvm->mutex);
135
136 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP)
137 if (WARN_ON(mvm->d3_test_active))
138 return -EIO;
139 #endif
140
141 /*
142 * Only synchronous commands can wait for status,
143 * we use WANT_SKB so the caller can't.
144 */
145 if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB),
146 "cmd flags %x", cmd->flags))
147 return -EINVAL;
148
149 cmd->flags |= CMD_WANT_SKB;
150
151 ret = iwl_trans_send_cmd(mvm->trans, cmd);
152 if (ret == -ERFKILL) {
153 /*
154 * The command failed because of RFKILL, don't update
155 * the status, leave it as success and return 0.
156 */
157 return 0;
158 } else if (ret) {
159 return ret;
160 }
161
162 pkt = cmd->resp_pkt;
163 /* Can happen if RFKILL is asserted */
164 if (!pkt) {
165 ret = 0;
166 goto out_free_resp;
167 }
168
169 if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
170 ret = -EIO;
171 goto out_free_resp;
172 }
173
174 resp_len = iwl_rx_packet_payload_len(pkt);
175 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
176 ret = -EIO;
177 goto out_free_resp;
178 }
179
180 resp = (void *)pkt->data;
181 *status = le32_to_cpu(resp->status);
182 out_free_resp:
183 iwl_free_resp(cmd);
184 return ret;
185 }
186
187 /*
188 * We assume that the caller set the status to the sucess value
189 */
190 int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id, u16 len,
191 const void *data, u32 *status)
192 {
193 struct iwl_host_cmd cmd = {
194 .id = id,
195 .len = { len, },
196 .data = { data, },
197 };
198
199 return iwl_mvm_send_cmd_status(mvm, &cmd, status);
200 }
201
202 #define IWL_DECLARE_RATE_INFO(r) \
203 [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP
204
205 /*
206 * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP
207 */
208 static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = {
209 IWL_DECLARE_RATE_INFO(1),
210 IWL_DECLARE_RATE_INFO(2),
211 IWL_DECLARE_RATE_INFO(5),
212 IWL_DECLARE_RATE_INFO(11),
213 IWL_DECLARE_RATE_INFO(6),
214 IWL_DECLARE_RATE_INFO(9),
215 IWL_DECLARE_RATE_INFO(12),
216 IWL_DECLARE_RATE_INFO(18),
217 IWL_DECLARE_RATE_INFO(24),
218 IWL_DECLARE_RATE_INFO(36),
219 IWL_DECLARE_RATE_INFO(48),
220 IWL_DECLARE_RATE_INFO(54),
221 };
222
223 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
224 enum ieee80211_band band)
225 {
226 int rate = rate_n_flags & RATE_LEGACY_RATE_MSK;
227 int idx;
228 int band_offset = 0;
229
230 /* Legacy rate format, search for match in table */
231 if (band == IEEE80211_BAND_5GHZ)
232 band_offset = IWL_FIRST_OFDM_RATE;
233 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
234 if (fw_rate_idx_to_plcp[idx] == rate)
235 return idx - band_offset;
236
237 return -1;
238 }
239
240 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx)
241 {
242 /* Get PLCP rate for tx_cmd->rate_n_flags */
243 return fw_rate_idx_to_plcp[rate_idx];
244 }
245
246 int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
247 struct iwl_device_cmd *cmd)
248 {
249 struct iwl_rx_packet *pkt = rxb_addr(rxb);
250 struct iwl_error_resp *err_resp = (void *)pkt->data;
251
252 IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n",
253 le32_to_cpu(err_resp->error_type), err_resp->cmd_id);
254 IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n",
255 le16_to_cpu(err_resp->bad_cmd_seq_num),
256 le32_to_cpu(err_resp->error_service));
257 IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n",
258 le64_to_cpu(err_resp->timestamp));
259 return 0;
260 }
261
262 /*
263 * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h.
264 * The parameter should also be a combination of ANT_[ABC].
265 */
266 u8 first_antenna(u8 mask)
267 {
268 BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */
269 if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */
270 return BIT(0);
271 return BIT(ffs(mask) - 1);
272 }
273
274 /*
275 * Toggles between TX antennas to send the probe request on.
276 * Receives the bitmask of valid TX antennas and the *index* used
277 * for the last TX, and returns the next valid *index* to use.
278 * In order to set it in the tx_cmd, must do BIT(idx).
279 */
280 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx)
281 {
282 u8 ind = last_idx;
283 int i;
284
285 for (i = 0; i < RATE_MCS_ANT_NUM; i++) {
286 ind = (ind + 1) % RATE_MCS_ANT_NUM;
287 if (valid & BIT(ind))
288 return ind;
289 }
290
291 WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid);
292 return last_idx;
293 }
294
295 static const struct {
296 const char *name;
297 u8 num;
298 } advanced_lookup[] = {
299 { "NMI_INTERRUPT_WDG", 0x34 },
300 { "SYSASSERT", 0x35 },
301 { "UCODE_VERSION_MISMATCH", 0x37 },
302 { "BAD_COMMAND", 0x38 },
303 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
304 { "FATAL_ERROR", 0x3D },
305 { "NMI_TRM_HW_ERR", 0x46 },
306 { "NMI_INTERRUPT_TRM", 0x4C },
307 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
308 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
309 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
310 { "NMI_INTERRUPT_HOST", 0x66 },
311 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
312 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
313 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
314 { "ADVANCED_SYSASSERT", 0 },
315 };
316
317 static const char *desc_lookup(u32 num)
318 {
319 int i;
320
321 for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++)
322 if (advanced_lookup[i].num == num)
323 return advanced_lookup[i].name;
324
325 /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */
326 return advanced_lookup[i].name;
327 }
328
329 /*
330 * Note: This structure is read from the device with IO accesses,
331 * and the reading already does the endian conversion. As it is
332 * read with u32-sized accesses, any members with a different size
333 * need to be ordered correctly though!
334 */
335 struct iwl_error_event_table_v1 {
336 u32 valid; /* (nonzero) valid, (0) log is empty */
337 u32 error_id; /* type of error */
338 u32 pc; /* program counter */
339 u32 blink1; /* branch link */
340 u32 blink2; /* branch link */
341 u32 ilink1; /* interrupt link */
342 u32 ilink2; /* interrupt link */
343 u32 data1; /* error-specific data */
344 u32 data2; /* error-specific data */
345 u32 data3; /* error-specific data */
346 u32 bcon_time; /* beacon timer */
347 u32 tsf_low; /* network timestamp function timer */
348 u32 tsf_hi; /* network timestamp function timer */
349 u32 gp1; /* GP1 timer register */
350 u32 gp2; /* GP2 timer register */
351 u32 gp3; /* GP3 timer register */
352 u32 ucode_ver; /* uCode version */
353 u32 hw_ver; /* HW Silicon version */
354 u32 brd_ver; /* HW board version */
355 u32 log_pc; /* log program counter */
356 u32 frame_ptr; /* frame pointer */
357 u32 stack_ptr; /* stack pointer */
358 u32 hcmd; /* last host command header */
359 u32 isr0; /* isr status register LMPM_NIC_ISR0:
360 * rxtx_flag */
361 u32 isr1; /* isr status register LMPM_NIC_ISR1:
362 * host_flag */
363 u32 isr2; /* isr status register LMPM_NIC_ISR2:
364 * enc_flag */
365 u32 isr3; /* isr status register LMPM_NIC_ISR3:
366 * time_flag */
367 u32 isr4; /* isr status register LMPM_NIC_ISR4:
368 * wico interrupt */
369 u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */
370 u32 wait_event; /* wait event() caller address */
371 u32 l2p_control; /* L2pControlField */
372 u32 l2p_duration; /* L2pDurationField */
373 u32 l2p_mhvalid; /* L2pMhValidBits */
374 u32 l2p_addr_match; /* L2pAddrMatchStat */
375 u32 lmpm_pmg_sel; /* indicate which clocks are turned on
376 * (LMPM_PMG_SEL) */
377 u32 u_timestamp; /* indicate when the date and time of the
378 * compilation */
379 u32 flow_handler; /* FH read/write pointers, RX credit */
380 } __packed /* LOG_ERROR_TABLE_API_S_VER_1 */;
381
382 struct iwl_error_event_table {
383 u32 valid; /* (nonzero) valid, (0) log is empty */
384 u32 error_id; /* type of error */
385 u32 pc; /* program counter */
386 u32 blink1; /* branch link */
387 u32 blink2; /* branch link */
388 u32 ilink1; /* interrupt link */
389 u32 ilink2; /* interrupt link */
390 u32 data1; /* error-specific data */
391 u32 data2; /* error-specific data */
392 u32 data3; /* error-specific data */
393 u32 bcon_time; /* beacon timer */
394 u32 tsf_low; /* network timestamp function timer */
395 u32 tsf_hi; /* network timestamp function timer */
396 u32 gp1; /* GP1 timer register */
397 u32 gp2; /* GP2 timer register */
398 u32 gp3; /* GP3 timer register */
399 u32 major; /* uCode version major */
400 u32 minor; /* uCode version minor */
401 u32 hw_ver; /* HW Silicon version */
402 u32 brd_ver; /* HW board version */
403 u32 log_pc; /* log program counter */
404 u32 frame_ptr; /* frame pointer */
405 u32 stack_ptr; /* stack pointer */
406 u32 hcmd; /* last host command header */
407 u32 isr0; /* isr status register LMPM_NIC_ISR0:
408 * rxtx_flag */
409 u32 isr1; /* isr status register LMPM_NIC_ISR1:
410 * host_flag */
411 u32 isr2; /* isr status register LMPM_NIC_ISR2:
412 * enc_flag */
413 u32 isr3; /* isr status register LMPM_NIC_ISR3:
414 * time_flag */
415 u32 isr4; /* isr status register LMPM_NIC_ISR4:
416 * wico interrupt */
417 u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */
418 u32 wait_event; /* wait event() caller address */
419 u32 l2p_control; /* L2pControlField */
420 u32 l2p_duration; /* L2pDurationField */
421 u32 l2p_mhvalid; /* L2pMhValidBits */
422 u32 l2p_addr_match; /* L2pAddrMatchStat */
423 u32 lmpm_pmg_sel; /* indicate which clocks are turned on
424 * (LMPM_PMG_SEL) */
425 u32 u_timestamp; /* indicate when the date and time of the
426 * compilation */
427 u32 flow_handler; /* FH read/write pointers, RX credit */
428 } __packed /* LOG_ERROR_TABLE_API_S_VER_2 */;
429
430 /*
431 * UMAC error struct - relevant starting from family 8000 chip.
432 * Note: This structure is read from the device with IO accesses,
433 * and the reading already does the endian conversion. As it is
434 * read with u32-sized accesses, any members with a different size
435 * need to be ordered correctly though!
436 */
437 struct iwl_umac_error_event_table {
438 u32 valid; /* (nonzero) valid, (0) log is empty */
439 u32 error_id; /* type of error */
440 u32 blink1; /* branch link */
441 u32 blink2; /* branch link */
442 u32 ilink1; /* interrupt link */
443 u32 ilink2; /* interrupt link */
444 u32 data1; /* error-specific data */
445 u32 data2; /* error-specific data */
446 u32 data3; /* error-specific data */
447 u32 umac_major;
448 u32 umac_minor;
449 u32 frame_pointer; /* core register 27*/
450 u32 stack_pointer; /* core register 28 */
451 u32 cmd_header; /* latest host cmd sent to UMAC */
452 u32 nic_isr_pref; /* ISR status register */
453 } __packed;
454
455 #define ERROR_START_OFFSET (1 * sizeof(u32))
456 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
457
458 static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm)
459 {
460 struct iwl_trans *trans = mvm->trans;
461 struct iwl_umac_error_event_table table;
462 u32 base;
463
464 base = mvm->umac_error_event_table;
465
466 if (base < 0x800000) {
467 IWL_ERR(mvm,
468 "Not valid error log pointer 0x%08X for %s uCode\n",
469 base,
470 (mvm->cur_ucode == IWL_UCODE_INIT)
471 ? "Init" : "RT");
472 return;
473 }
474
475 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
476
477 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
478 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
479 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
480 mvm->status, table.valid);
481 }
482
483 IWL_ERR(mvm, "0x%08X | %s\n", table.error_id,
484 desc_lookup(table.error_id));
485 IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1);
486 IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2);
487 IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1);
488 IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2);
489 IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1);
490 IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2);
491 IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3);
492 IWL_ERR(mvm, "0x%08X | umac major\n", table.umac_major);
493 IWL_ERR(mvm, "0x%08X | umac minor\n", table.umac_minor);
494 IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer);
495 IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer);
496 IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header);
497 IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref);
498 }
499
500 static void iwl_mvm_dump_nic_error_log_old(struct iwl_mvm *mvm)
501 {
502 struct iwl_trans *trans = mvm->trans;
503 struct iwl_error_event_table_v1 table;
504 u32 base;
505
506 base = mvm->error_event_table;
507 if (mvm->cur_ucode == IWL_UCODE_INIT) {
508 if (!base)
509 base = mvm->fw->init_errlog_ptr;
510 } else {
511 if (!base)
512 base = mvm->fw->inst_errlog_ptr;
513 }
514
515 if (base < 0x800000) {
516 IWL_ERR(mvm,
517 "Not valid error log pointer 0x%08X for %s uCode\n",
518 base,
519 (mvm->cur_ucode == IWL_UCODE_INIT)
520 ? "Init" : "RT");
521 return;
522 }
523
524 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
525
526 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
527 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
528 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
529 mvm->status, table.valid);
530 }
531
532 /* Do not change this output - scripts rely on it */
533
534 IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version);
535
536 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
537 table.data1, table.data2, table.data3,
538 table.blink1, table.blink2, table.ilink1,
539 table.ilink2, table.bcon_time, table.gp1,
540 table.gp2, table.gp3, table.ucode_ver, 0,
541 table.hw_ver, table.brd_ver);
542 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id,
543 desc_lookup(table.error_id));
544 IWL_ERR(mvm, "0x%08X | uPc\n", table.pc);
545 IWL_ERR(mvm, "0x%08X | branchlink1\n", table.blink1);
546 IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2);
547 IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1);
548 IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2);
549 IWL_ERR(mvm, "0x%08X | data1\n", table.data1);
550 IWL_ERR(mvm, "0x%08X | data2\n", table.data2);
551 IWL_ERR(mvm, "0x%08X | data3\n", table.data3);
552 IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time);
553 IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low);
554 IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi);
555 IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1);
556 IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2);
557 IWL_ERR(mvm, "0x%08X | time gp3\n", table.gp3);
558 IWL_ERR(mvm, "0x%08X | uCode version\n", table.ucode_ver);
559 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver);
560 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver);
561 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd);
562 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0);
563 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1);
564 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2);
565 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3);
566 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4);
567 IWL_ERR(mvm, "0x%08X | isr_pref\n", table.isr_pref);
568 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event);
569 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control);
570 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration);
571 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
572 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
573 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
574 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp);
575 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler);
576
577 if (mvm->support_umac_log)
578 iwl_mvm_dump_umac_error_log(mvm);
579 }
580
581 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
582 {
583 struct iwl_trans *trans = mvm->trans;
584 struct iwl_error_event_table table;
585 u32 base;
586
587 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_NEW_VERSION)) {
588 iwl_mvm_dump_nic_error_log_old(mvm);
589 return;
590 }
591
592 base = mvm->error_event_table;
593 if (mvm->cur_ucode == IWL_UCODE_INIT) {
594 if (!base)
595 base = mvm->fw->init_errlog_ptr;
596 } else {
597 if (!base)
598 base = mvm->fw->inst_errlog_ptr;
599 }
600
601 if (base < 0x800000) {
602 IWL_ERR(mvm,
603 "Not valid error log pointer 0x%08X for %s uCode\n",
604 base,
605 (mvm->cur_ucode == IWL_UCODE_INIT)
606 ? "Init" : "RT");
607 return;
608 }
609
610 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
611
612 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
613 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
614 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
615 mvm->status, table.valid);
616 }
617
618 /* Do not change this output - scripts rely on it */
619
620 IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version);
621
622 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
623 table.data1, table.data2, table.data3,
624 table.blink1, table.blink2, table.ilink1,
625 table.ilink2, table.bcon_time, table.gp1,
626 table.gp2, table.gp3, table.major,
627 table.minor, table.hw_ver, table.brd_ver);
628 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id,
629 desc_lookup(table.error_id));
630 IWL_ERR(mvm, "0x%08X | uPc\n", table.pc);
631 IWL_ERR(mvm, "0x%08X | branchlink1\n", table.blink1);
632 IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2);
633 IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1);
634 IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2);
635 IWL_ERR(mvm, "0x%08X | data1\n", table.data1);
636 IWL_ERR(mvm, "0x%08X | data2\n", table.data2);
637 IWL_ERR(mvm, "0x%08X | data3\n", table.data3);
638 IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time);
639 IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low);
640 IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi);
641 IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1);
642 IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2);
643 IWL_ERR(mvm, "0x%08X | time gp3\n", table.gp3);
644 IWL_ERR(mvm, "0x%08X | uCode version major\n", table.major);
645 IWL_ERR(mvm, "0x%08X | uCode version minor\n", table.minor);
646 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver);
647 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver);
648 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd);
649 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0);
650 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1);
651 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2);
652 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3);
653 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4);
654 IWL_ERR(mvm, "0x%08X | isr_pref\n", table.isr_pref);
655 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event);
656 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control);
657 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration);
658 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
659 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
660 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
661 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp);
662 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler);
663
664 if (mvm->support_umac_log)
665 iwl_mvm_dump_umac_error_log(mvm);
666 }
667 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn,
668 const struct iwl_trans_txq_scd_cfg *cfg,
669 unsigned int wdg_timeout)
670 {
671 struct iwl_scd_txq_cfg_cmd cmd = {
672 .scd_queue = queue,
673 .enable = 1,
674 .window = cfg->frame_limit,
675 .sta_id = cfg->sta_id,
676 .ssn = cpu_to_le16(ssn),
677 .tx_fifo = cfg->fifo,
678 .aggregate = cfg->aggregate,
679 .tid = cfg->tid,
680 };
681
682 if (!iwl_mvm_is_scd_cfg_supported(mvm)) {
683 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, cfg,
684 wdg_timeout);
685 return;
686 }
687
688 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout);
689 WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd),
690 "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo);
691 }
692
693 void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, u8 flags)
694 {
695 struct iwl_scd_txq_cfg_cmd cmd = {
696 .scd_queue = queue,
697 .enable = 0,
698 };
699 int ret;
700
701 if (!iwl_mvm_is_scd_cfg_supported(mvm)) {
702 iwl_trans_txq_disable(mvm->trans, queue, true);
703 return;
704 }
705
706 iwl_trans_txq_disable(mvm->trans, queue, false);
707 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags,
708 sizeof(cmd), &cmd);
709 if (ret)
710 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n",
711 queue, ret);
712 }
713
714 /**
715 * iwl_mvm_send_lq_cmd() - Send link quality command
716 * @init: This command is sent as part of station initialization right
717 * after station has been added.
718 *
719 * The link quality command is sent as the last step of station creation.
720 * This is the special case in which init is set and we call a callback in
721 * this case to clear the state indicating that station creation is in
722 * progress.
723 */
724 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init)
725 {
726 struct iwl_host_cmd cmd = {
727 .id = LQ_CMD,
728 .len = { sizeof(struct iwl_lq_cmd), },
729 .flags = init ? 0 : CMD_ASYNC,
730 .data = { lq, },
731 };
732
733 if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT))
734 return -EINVAL;
735
736 return iwl_mvm_send_cmd(mvm, &cmd);
737 }
738
739 /**
740 * iwl_mvm_update_smps - Get a request to change the SMPS mode
741 * @req_type: The part of the driver who call for a change.
742 * @smps_requests: The request to change the SMPS mode.
743 *
744 * Get a requst to change the SMPS mode,
745 * and change it according to all other requests in the driver.
746 */
747 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
748 enum iwl_mvm_smps_type_request req_type,
749 enum ieee80211_smps_mode smps_request)
750 {
751 struct iwl_mvm_vif *mvmvif;
752 enum ieee80211_smps_mode smps_mode;
753 int i;
754
755 lockdep_assert_held(&mvm->mutex);
756
757 /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */
758 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
759 return;
760
761 if (vif->type == NL80211_IFTYPE_AP)
762 smps_mode = IEEE80211_SMPS_OFF;
763 else
764 smps_mode = IEEE80211_SMPS_AUTOMATIC;
765
766 mvmvif = iwl_mvm_vif_from_mac80211(vif);
767 mvmvif->smps_requests[req_type] = smps_request;
768 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
769 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) {
770 smps_mode = IEEE80211_SMPS_STATIC;
771 break;
772 }
773 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
774 smps_mode = IEEE80211_SMPS_DYNAMIC;
775 }
776
777 ieee80211_request_smps(vif, smps_mode);
778 }
779
780 int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear)
781 {
782 struct iwl_statistics_cmd scmd = {
783 .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0,
784 };
785 struct iwl_host_cmd cmd = {
786 .id = STATISTICS_CMD,
787 .len[0] = sizeof(scmd),
788 .data[0] = &scmd,
789 .flags = CMD_WANT_SKB,
790 };
791 int ret;
792
793 ret = iwl_mvm_send_cmd(mvm, &cmd);
794 if (ret)
795 return ret;
796
797 iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt);
798 iwl_free_resp(&cmd);
799
800 if (clear)
801 iwl_mvm_accu_radio_stats(mvm);
802
803 return 0;
804 }
805
806 void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm)
807 {
808 mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time;
809 mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time;
810 mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf;
811 mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan;
812 }
813
814 static void iwl_mvm_diversity_iter(void *_data, u8 *mac,
815 struct ieee80211_vif *vif)
816 {
817 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
818 bool *result = _data;
819 int i;
820
821 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
822 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC ||
823 mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
824 *result = false;
825 }
826 }
827
828 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
829 {
830 bool result = true;
831
832 lockdep_assert_held(&mvm->mutex);
833
834 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
835 return false;
836
837 if (mvm->cfg->rx_with_siso_diversity)
838 return false;
839
840 ieee80211_iterate_active_interfaces_atomic(
841 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
842 iwl_mvm_diversity_iter, &result);
843
844 return result;
845 }
846
847 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
848 bool value)
849 {
850 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
851 int res;
852
853 lockdep_assert_held(&mvm->mutex);
854
855 if (mvmvif->low_latency == value)
856 return 0;
857
858 mvmvif->low_latency = value;
859
860 res = iwl_mvm_update_quotas(mvm, false, NULL);
861 if (res)
862 return res;
863
864 iwl_mvm_bt_coex_vif_change(mvm);
865
866 return iwl_mvm_power_update_mac(mvm);
867 }
868
869 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
870 {
871 bool *result = _data;
872
873 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif)))
874 *result = true;
875 }
876
877 bool iwl_mvm_low_latency(struct iwl_mvm *mvm)
878 {
879 bool result = false;
880
881 ieee80211_iterate_active_interfaces_atomic(
882 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
883 iwl_mvm_ll_iter, &result);
884
885 return result;
886 }
887
888 struct iwl_bss_iter_data {
889 struct ieee80211_vif *vif;
890 bool error;
891 };
892
893 static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac,
894 struct ieee80211_vif *vif)
895 {
896 struct iwl_bss_iter_data *data = _data;
897
898 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
899 return;
900
901 if (data->vif) {
902 data->error = true;
903 return;
904 }
905
906 data->vif = vif;
907 }
908
909 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm)
910 {
911 struct iwl_bss_iter_data bss_iter_data = {};
912
913 ieee80211_iterate_active_interfaces_atomic(
914 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
915 iwl_mvm_bss_iface_iterator, &bss_iter_data);
916
917 if (bss_iter_data.error) {
918 IWL_ERR(mvm, "More than one managed interface active!\n");
919 return ERR_PTR(-EINVAL);
920 }
921
922 return bss_iter_data.vif;
923 }
924
925 unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm,
926 struct ieee80211_vif *vif,
927 bool tdls, bool cmd_q)
928 {
929 struct iwl_fw_dbg_trigger_tlv *trigger;
930 struct iwl_fw_dbg_trigger_txq_timer *txq_timer;
931 unsigned int default_timeout =
932 cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout;
933
934 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS))
935 return iwlmvm_mod_params.tfd_q_hang_detect ?
936 default_timeout : IWL_WATCHDOG_DISABLED;
937
938 trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS);
939 txq_timer = (void *)trigger->data;
940
941 if (tdls)
942 return le32_to_cpu(txq_timer->tdls);
943
944 if (cmd_q)
945 return le32_to_cpu(txq_timer->command_queue);
946
947 if (WARN_ON(!vif))
948 return default_timeout;
949
950 switch (ieee80211_vif_type_p2p(vif)) {
951 case NL80211_IFTYPE_ADHOC:
952 return le32_to_cpu(txq_timer->ibss);
953 case NL80211_IFTYPE_STATION:
954 return le32_to_cpu(txq_timer->bss);
955 case NL80211_IFTYPE_AP:
956 return le32_to_cpu(txq_timer->softap);
957 case NL80211_IFTYPE_P2P_CLIENT:
958 return le32_to_cpu(txq_timer->p2p_client);
959 case NL80211_IFTYPE_P2P_GO:
960 return le32_to_cpu(txq_timer->p2p_go);
961 case NL80211_IFTYPE_P2P_DEVICE:
962 return le32_to_cpu(txq_timer->p2p_device);
963 default:
964 WARN_ON(1);
965 return mvm->cfg->base_params->wd_timeout;
966 }
967 }
968
969 void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
970 const char *errmsg)
971 {
972 struct iwl_fw_dbg_trigger_tlv *trig;
973 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
974
975 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
976 goto out;
977
978 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
979 trig_mlme = (void *)trig->data;
980 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
981 goto out;
982
983 if (trig_mlme->stop_connection_loss &&
984 --trig_mlme->stop_connection_loss)
985 goto out;
986
987 iwl_mvm_fw_dbg_collect_trig(mvm, trig, "%s", errmsg);
988
989 out:
990 ieee80211_connection_loss(vif);
991 }
Linux kernel - Deliverables
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