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 * Copyright (C) 2015 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 - 2014 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 68 #include "iwl-debug.h" 69 #include "iwl-io.h" 70 #include "iwl-prph.h" 71 #include "fw-dbg.h" 72 #include "mvm.h" 73 #include "fw-api-rs.h" 74 75 /* 76 * Will return 0 even if the cmd failed when RFKILL is asserted unless 77 * CMD_WANT_SKB is set in cmd->flags. 78 */ 79 int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) 80 { 81 int ret; 82 83 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 84 if (WARN_ON(mvm->d3_test_active)) 85 return -EIO; 86 #endif 87 88 /* 89 * Synchronous commands from this op-mode must hold 90 * the mutex, this ensures we don't try to send two 91 * (or more) synchronous commands at a time. 92 */ 93 if (!(cmd->flags & CMD_ASYNC)) { 94 lockdep_assert_held(&mvm->mutex); 95 if (!(cmd->flags & CMD_SEND_IN_IDLE)) 96 iwl_mvm_ref(mvm, IWL_MVM_REF_SENDING_CMD); 97 } 98 99 ret = iwl_trans_send_cmd(mvm->trans, cmd); 100 101 if (!(cmd->flags & (CMD_ASYNC | CMD_SEND_IN_IDLE))) 102 iwl_mvm_unref(mvm, IWL_MVM_REF_SENDING_CMD); 103 104 /* 105 * If the caller wants the SKB, then don't hide any problems, the 106 * caller might access the response buffer which will be NULL if 107 * the command failed. 108 */ 109 if (cmd->flags & CMD_WANT_SKB) 110 return ret; 111 112 /* Silently ignore failures if RFKILL is asserted */ 113 if (!ret || ret == -ERFKILL) 114 return 0; 115 return ret; 116 } 117 118 int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id, 119 u32 flags, u16 len, const void *data) 120 { 121 struct iwl_host_cmd cmd = { 122 .id = id, 123 .len = { len, }, 124 .data = { data, }, 125 .flags = flags, 126 }; 127 128 return iwl_mvm_send_cmd(mvm, &cmd); 129 } 130 131 /* 132 * We assume that the caller set the status to the success value 133 */ 134 int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, 135 u32 *status) 136 { 137 struct iwl_rx_packet *pkt; 138 struct iwl_cmd_response *resp; 139 int ret, resp_len; 140 141 lockdep_assert_held(&mvm->mutex); 142 143 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 144 if (WARN_ON(mvm->d3_test_active)) 145 return -EIO; 146 #endif 147 148 /* 149 * Only synchronous commands can wait for status, 150 * we use WANT_SKB so the caller can't. 151 */ 152 if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), 153 "cmd flags %x", cmd->flags)) 154 return -EINVAL; 155 156 cmd->flags |= CMD_WANT_SKB; 157 158 ret = iwl_trans_send_cmd(mvm->trans, cmd); 159 if (ret == -ERFKILL) { 160 /* 161 * The command failed because of RFKILL, don't update 162 * the status, leave it as success and return 0. 163 */ 164 return 0; 165 } else if (ret) { 166 return ret; 167 } 168 169 pkt = cmd->resp_pkt; 170 /* Can happen if RFKILL is asserted */ 171 if (!pkt) { 172 ret = 0; 173 goto out_free_resp; 174 } 175 176 resp_len = iwl_rx_packet_payload_len(pkt); 177 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 178 ret = -EIO; 179 goto out_free_resp; 180 } 181 182 resp = (void *)pkt->data; 183 *status = le32_to_cpu(resp->status); 184 out_free_resp: 185 iwl_free_resp(cmd); 186 return ret; 187 } 188 189 /* 190 * We assume that the caller set the status to the sucess value 191 */ 192 int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id, u16 len, 193 const void *data, u32 *status) 194 { 195 struct iwl_host_cmd cmd = { 196 .id = id, 197 .len = { len, }, 198 .data = { data, }, 199 }; 200 201 return iwl_mvm_send_cmd_status(mvm, &cmd, status); 202 } 203 204 #define IWL_DECLARE_RATE_INFO(r) \ 205 [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP 206 207 /* 208 * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP 209 */ 210 static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = { 211 IWL_DECLARE_RATE_INFO(1), 212 IWL_DECLARE_RATE_INFO(2), 213 IWL_DECLARE_RATE_INFO(5), 214 IWL_DECLARE_RATE_INFO(11), 215 IWL_DECLARE_RATE_INFO(6), 216 IWL_DECLARE_RATE_INFO(9), 217 IWL_DECLARE_RATE_INFO(12), 218 IWL_DECLARE_RATE_INFO(18), 219 IWL_DECLARE_RATE_INFO(24), 220 IWL_DECLARE_RATE_INFO(36), 221 IWL_DECLARE_RATE_INFO(48), 222 IWL_DECLARE_RATE_INFO(54), 223 }; 224 225 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, 226 enum nl80211_band band) 227 { 228 int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; 229 int idx; 230 int band_offset = 0; 231 232 /* Legacy rate format, search for match in table */ 233 if (band == NL80211_BAND_5GHZ) 234 band_offset = IWL_FIRST_OFDM_RATE; 235 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) 236 if (fw_rate_idx_to_plcp[idx] == rate) 237 return idx - band_offset; 238 239 return -1; 240 } 241 242 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx) 243 { 244 /* Get PLCP rate for tx_cmd->rate_n_flags */ 245 return fw_rate_idx_to_plcp[rate_idx]; 246 } 247 248 void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 249 { 250 struct iwl_rx_packet *pkt = rxb_addr(rxb); 251 struct iwl_error_resp *err_resp = (void *)pkt->data; 252 253 IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", 254 le32_to_cpu(err_resp->error_type), err_resp->cmd_id); 255 IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", 256 le16_to_cpu(err_resp->bad_cmd_seq_num), 257 le32_to_cpu(err_resp->error_service)); 258 IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n", 259 le64_to_cpu(err_resp->timestamp)); 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 trm_hw_status0; /* TRM HW status */ 386 u32 trm_hw_status1; /* TRM HW status */ 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 fw_rev_type; /* firmware revision type */ 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 last_cmd_id; /* last HCMD id handled by the firmware */ 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_3 */; 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 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) 501 { 502 struct iwl_trans *trans = mvm->trans; 503 struct iwl_error_event_table 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.blink2, table.ilink1, 539 table.ilink2, table.bcon_time, table.gp1, 540 table.gp2, table.fw_rev_type, table.major, 541 table.minor, 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 | trm_hw_status0\n", table.trm_hw_status0); 545 IWL_ERR(mvm, "0x%08X | trm_hw_status1\n", table.trm_hw_status1); 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 | uCode revision type\n", table.fw_rev_type); 558 IWL_ERR(mvm, "0x%08X | uCode version major\n", table.major); 559 IWL_ERR(mvm, "0x%08X | uCode version minor\n", table.minor); 560 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); 561 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); 562 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); 563 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); 564 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); 565 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); 566 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); 567 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); 568 IWL_ERR(mvm, "0x%08X | last cmd Id\n", table.last_cmd_id); 569 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); 570 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); 571 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); 572 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); 573 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); 574 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); 575 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); 576 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); 577 578 if (mvm->support_umac_log) 579 iwl_mvm_dump_umac_error_log(mvm); 580 } 581 582 int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 minq, u8 maxq) 583 { 584 int i; 585 586 lockdep_assert_held(&mvm->queue_info_lock); 587 588 for (i = minq; i <= maxq; i++) 589 if (mvm->queue_info[i].hw_queue_refcount == 0 && 590 mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 591 return i; 592 593 return -ENOSPC; 594 } 595 596 int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id, 597 int tid, int frame_limit, u16 ssn) 598 { 599 struct iwl_scd_txq_cfg_cmd cmd = { 600 .scd_queue = queue, 601 .enable = 1, 602 .window = frame_limit, 603 .sta_id = sta_id, 604 .ssn = cpu_to_le16(ssn), 605 .tx_fifo = fifo, 606 .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 607 queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 608 .tid = tid, 609 }; 610 int ret; 611 612 spin_lock_bh(&mvm->queue_info_lock); 613 if (WARN(mvm->queue_info[queue].hw_queue_refcount == 0, 614 "Trying to reconfig unallocated queue %d\n", queue)) { 615 spin_unlock_bh(&mvm->queue_info_lock); 616 return -ENXIO; 617 } 618 spin_unlock_bh(&mvm->queue_info_lock); 619 620 IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 621 622 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 623 WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 624 queue, fifo, ret); 625 626 return ret; 627 } 628 629 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 630 u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg, 631 unsigned int wdg_timeout) 632 { 633 bool enable_queue = true; 634 635 spin_lock_bh(&mvm->queue_info_lock); 636 637 /* Make sure this TID isn't already enabled */ 638 if (mvm->queue_info[queue].tid_bitmap & BIT(cfg->tid)) { 639 spin_unlock_bh(&mvm->queue_info_lock); 640 IWL_ERR(mvm, "Trying to enable TXQ with existing TID %d\n", 641 cfg->tid); 642 return; 643 } 644 645 /* Update mappings and refcounts */ 646 mvm->queue_info[queue].hw_queue_to_mac80211 |= BIT(mac80211_queue); 647 mvm->queue_info[queue].hw_queue_refcount++; 648 if (mvm->queue_info[queue].hw_queue_refcount > 1) 649 enable_queue = false; 650 else 651 mvm->queue_info[queue].ra_sta_id = cfg->sta_id; 652 mvm->queue_info[queue].tid_bitmap |= BIT(cfg->tid); 653 654 IWL_DEBUG_TX_QUEUES(mvm, 655 "Enabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 656 queue, mvm->queue_info[queue].hw_queue_refcount, 657 mvm->queue_info[queue].hw_queue_to_mac80211); 658 659 spin_unlock_bh(&mvm->queue_info_lock); 660 661 /* Send the enabling command if we need to */ 662 if (enable_queue) { 663 struct iwl_scd_txq_cfg_cmd cmd = { 664 .scd_queue = queue, 665 .enable = 1, 666 .window = cfg->frame_limit, 667 .sta_id = cfg->sta_id, 668 .ssn = cpu_to_le16(ssn), 669 .tx_fifo = cfg->fifo, 670 .aggregate = cfg->aggregate, 671 .tid = cfg->tid, 672 }; 673 674 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, 675 wdg_timeout); 676 WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), 677 &cmd), 678 "Failed to configure queue %d on FIFO %d\n", queue, 679 cfg->fifo); 680 } 681 } 682 683 void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 684 u8 tid, u8 flags) 685 { 686 struct iwl_scd_txq_cfg_cmd cmd = { 687 .scd_queue = queue, 688 .enable = 0, 689 }; 690 bool remove_mac_queue = true; 691 int ret; 692 693 spin_lock_bh(&mvm->queue_info_lock); 694 695 if (WARN_ON(mvm->queue_info[queue].hw_queue_refcount == 0)) { 696 spin_unlock_bh(&mvm->queue_info_lock); 697 return; 698 } 699 700 mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 701 702 /* 703 * If there is another TID with the same AC - don't remove the MAC queue 704 * from the mapping 705 */ 706 if (tid < IWL_MAX_TID_COUNT) { 707 unsigned long tid_bitmap = 708 mvm->queue_info[queue].tid_bitmap; 709 int ac = tid_to_mac80211_ac[tid]; 710 int i; 711 712 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT) { 713 if (tid_to_mac80211_ac[i] == ac) 714 remove_mac_queue = false; 715 } 716 } 717 718 if (remove_mac_queue) 719 mvm->queue_info[queue].hw_queue_to_mac80211 &= 720 ~BIT(mac80211_queue); 721 mvm->queue_info[queue].hw_queue_refcount--; 722 723 cmd.enable = mvm->queue_info[queue].hw_queue_refcount ? 1 : 0; 724 if (!cmd.enable) 725 mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 726 727 IWL_DEBUG_TX_QUEUES(mvm, 728 "Disabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 729 queue, 730 mvm->queue_info[queue].hw_queue_refcount, 731 mvm->queue_info[queue].hw_queue_to_mac80211); 732 733 /* If the queue is still enabled - nothing left to do in this func */ 734 if (cmd.enable) { 735 spin_unlock_bh(&mvm->queue_info_lock); 736 return; 737 } 738 739 cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 740 741 /* Make sure queue info is correct even though we overwrite it */ 742 WARN(mvm->queue_info[queue].hw_queue_refcount || 743 mvm->queue_info[queue].tid_bitmap || 744 mvm->queue_info[queue].hw_queue_to_mac80211, 745 "TXQ #%d info out-of-sync - refcount=%d, mac map=0x%x, tid=0x%x\n", 746 queue, mvm->queue_info[queue].hw_queue_refcount, 747 mvm->queue_info[queue].hw_queue_to_mac80211, 748 mvm->queue_info[queue].tid_bitmap); 749 750 /* If we are here - the queue is freed and we can zero out these vals */ 751 mvm->queue_info[queue].hw_queue_refcount = 0; 752 mvm->queue_info[queue].tid_bitmap = 0; 753 mvm->queue_info[queue].hw_queue_to_mac80211 = 0; 754 755 spin_unlock_bh(&mvm->queue_info_lock); 756 757 iwl_trans_txq_disable(mvm->trans, queue, false); 758 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 759 sizeof(cmd), &cmd); 760 if (ret) 761 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 762 queue, ret); 763 } 764 765 /** 766 * iwl_mvm_send_lq_cmd() - Send link quality command 767 * @init: This command is sent as part of station initialization right 768 * after station has been added. 769 * 770 * The link quality command is sent as the last step of station creation. 771 * This is the special case in which init is set and we call a callback in 772 * this case to clear the state indicating that station creation is in 773 * progress. 774 */ 775 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init) 776 { 777 struct iwl_host_cmd cmd = { 778 .id = LQ_CMD, 779 .len = { sizeof(struct iwl_lq_cmd), }, 780 .flags = init ? 0 : CMD_ASYNC, 781 .data = { lq, }, 782 }; 783 784 if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT)) 785 return -EINVAL; 786 787 return iwl_mvm_send_cmd(mvm, &cmd); 788 } 789 790 /** 791 * iwl_mvm_update_smps - Get a request to change the SMPS mode 792 * @req_type: The part of the driver who call for a change. 793 * @smps_requests: The request to change the SMPS mode. 794 * 795 * Get a requst to change the SMPS mode, 796 * and change it according to all other requests in the driver. 797 */ 798 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 799 enum iwl_mvm_smps_type_request req_type, 800 enum ieee80211_smps_mode smps_request) 801 { 802 struct iwl_mvm_vif *mvmvif; 803 enum ieee80211_smps_mode smps_mode; 804 int i; 805 806 lockdep_assert_held(&mvm->mutex); 807 808 /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ 809 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 810 return; 811 812 if (vif->type == NL80211_IFTYPE_AP) 813 smps_mode = IEEE80211_SMPS_OFF; 814 else 815 smps_mode = IEEE80211_SMPS_AUTOMATIC; 816 817 mvmvif = iwl_mvm_vif_from_mac80211(vif); 818 mvmvif->smps_requests[req_type] = smps_request; 819 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 820 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { 821 smps_mode = IEEE80211_SMPS_STATIC; 822 break; 823 } 824 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 825 smps_mode = IEEE80211_SMPS_DYNAMIC; 826 } 827 828 ieee80211_request_smps(vif, smps_mode); 829 } 830 831 int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear) 832 { 833 struct iwl_statistics_cmd scmd = { 834 .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0, 835 }; 836 struct iwl_host_cmd cmd = { 837 .id = STATISTICS_CMD, 838 .len[0] = sizeof(scmd), 839 .data[0] = &scmd, 840 .flags = CMD_WANT_SKB, 841 }; 842 int ret; 843 844 ret = iwl_mvm_send_cmd(mvm, &cmd); 845 if (ret) 846 return ret; 847 848 iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt); 849 iwl_free_resp(&cmd); 850 851 if (clear) 852 iwl_mvm_accu_radio_stats(mvm); 853 854 return 0; 855 } 856 857 void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm) 858 { 859 mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time; 860 mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time; 861 mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf; 862 mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan; 863 } 864 865 static void iwl_mvm_diversity_iter(void *_data, u8 *mac, 866 struct ieee80211_vif *vif) 867 { 868 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 869 bool *result = _data; 870 int i; 871 872 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 873 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || 874 mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 875 *result = false; 876 } 877 } 878 879 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) 880 { 881 bool result = true; 882 883 lockdep_assert_held(&mvm->mutex); 884 885 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 886 return false; 887 888 if (mvm->cfg->rx_with_siso_diversity) 889 return false; 890 891 ieee80211_iterate_active_interfaces_atomic( 892 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 893 iwl_mvm_diversity_iter, &result); 894 895 return result; 896 } 897 898 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 899 bool prev) 900 { 901 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 902 int res; 903 904 lockdep_assert_held(&mvm->mutex); 905 906 if (iwl_mvm_vif_low_latency(mvmvif) == prev) 907 return 0; 908 909 res = iwl_mvm_update_quotas(mvm, false, NULL); 910 if (res) 911 return res; 912 913 iwl_mvm_bt_coex_vif_change(mvm); 914 915 return iwl_mvm_power_update_mac(mvm); 916 } 917 918 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) 919 { 920 bool *result = _data; 921 922 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) 923 *result = true; 924 } 925 926 bool iwl_mvm_low_latency(struct iwl_mvm *mvm) 927 { 928 bool result = false; 929 930 ieee80211_iterate_active_interfaces_atomic( 931 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 932 iwl_mvm_ll_iter, &result); 933 934 return result; 935 } 936 937 struct iwl_bss_iter_data { 938 struct ieee80211_vif *vif; 939 bool error; 940 }; 941 942 static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac, 943 struct ieee80211_vif *vif) 944 { 945 struct iwl_bss_iter_data *data = _data; 946 947 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 948 return; 949 950 if (data->vif) { 951 data->error = true; 952 return; 953 } 954 955 data->vif = vif; 956 } 957 958 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm) 959 { 960 struct iwl_bss_iter_data bss_iter_data = {}; 961 962 ieee80211_iterate_active_interfaces_atomic( 963 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 964 iwl_mvm_bss_iface_iterator, &bss_iter_data); 965 966 if (bss_iter_data.error) { 967 IWL_ERR(mvm, "More than one managed interface active!\n"); 968 return ERR_PTR(-EINVAL); 969 } 970 971 return bss_iter_data.vif; 972 } 973 974 unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm, 975 struct ieee80211_vif *vif, 976 bool tdls, bool cmd_q) 977 { 978 struct iwl_fw_dbg_trigger_tlv *trigger; 979 struct iwl_fw_dbg_trigger_txq_timer *txq_timer; 980 unsigned int default_timeout = 981 cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout; 982 983 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) 984 return iwlmvm_mod_params.tfd_q_hang_detect ? 985 default_timeout : IWL_WATCHDOG_DISABLED; 986 987 trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS); 988 txq_timer = (void *)trigger->data; 989 990 if (tdls) 991 return le32_to_cpu(txq_timer->tdls); 992 993 if (cmd_q) 994 return le32_to_cpu(txq_timer->command_queue); 995 996 if (WARN_ON(!vif)) 997 return default_timeout; 998 999 switch (ieee80211_vif_type_p2p(vif)) { 1000 case NL80211_IFTYPE_ADHOC: 1001 return le32_to_cpu(txq_timer->ibss); 1002 case NL80211_IFTYPE_STATION: 1003 return le32_to_cpu(txq_timer->bss); 1004 case NL80211_IFTYPE_AP: 1005 return le32_to_cpu(txq_timer->softap); 1006 case NL80211_IFTYPE_P2P_CLIENT: 1007 return le32_to_cpu(txq_timer->p2p_client); 1008 case NL80211_IFTYPE_P2P_GO: 1009 return le32_to_cpu(txq_timer->p2p_go); 1010 case NL80211_IFTYPE_P2P_DEVICE: 1011 return le32_to_cpu(txq_timer->p2p_device); 1012 default: 1013 WARN_ON(1); 1014 return mvm->cfg->base_params->wd_timeout; 1015 } 1016 } 1017 1018 void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1019 const char *errmsg) 1020 { 1021 struct iwl_fw_dbg_trigger_tlv *trig; 1022 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 1023 1024 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 1025 goto out; 1026 1027 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 1028 trig_mlme = (void *)trig->data; 1029 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 1030 goto out; 1031 1032 if (trig_mlme->stop_connection_loss && 1033 --trig_mlme->stop_connection_loss) 1034 goto out; 1035 1036 iwl_mvm_fw_dbg_collect_trig(mvm, trig, "%s", errmsg); 1037 1038 out: 1039 ieee80211_connection_loss(vif); 1040 } 1041 1042 int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif, 1043 enum iwl_lqm_cmd_operatrions operation, 1044 u32 duration, u32 timeout) 1045 { 1046 struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif); 1047 struct iwl_link_qual_msrmnt_cmd cmd = { 1048 .cmd_operation = cpu_to_le32(operation), 1049 .mac_id = cpu_to_le32(mvm_vif->id), 1050 .measurement_time = cpu_to_le32(duration), 1051 .timeout = cpu_to_le32(timeout), 1052 }; 1053 u32 cmdid = 1054 iwl_cmd_id(LINK_QUALITY_MEASUREMENT_CMD, MAC_CONF_GROUP, 0); 1055 int ret; 1056 1057 if (!fw_has_capa(&mvm_vif->mvm->fw->ucode_capa, 1058 IWL_UCODE_TLV_CAPA_LQM_SUPPORT)) 1059 return -EOPNOTSUPP; 1060 1061 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 1062 return -EINVAL; 1063 1064 switch (operation) { 1065 case LQM_CMD_OPERATION_START_MEASUREMENT: 1066 if (iwl_mvm_lqm_active(mvm_vif->mvm)) 1067 return -EBUSY; 1068 if (!vif->bss_conf.assoc) 1069 return -EINVAL; 1070 mvm_vif->lqm_active = true; 1071 break; 1072 case LQM_CMD_OPERATION_STOP_MEASUREMENT: 1073 if (!iwl_mvm_lqm_active(mvm_vif->mvm)) 1074 return -EINVAL; 1075 break; 1076 default: 1077 return -EINVAL; 1078 } 1079 1080 ret = iwl_mvm_send_cmd_pdu(mvm_vif->mvm, cmdid, 0, sizeof(cmd), 1081 &cmd); 1082 1083 /* command failed - roll back lqm_active state */ 1084 if (ret) { 1085 mvm_vif->lqm_active = 1086 operation == LQM_CMD_OPERATION_STOP_MEASUREMENT; 1087 } 1088 1089 return ret; 1090 } 1091 1092 static void iwl_mvm_lqm_active_iterator(void *_data, u8 *mac, 1093 struct ieee80211_vif *vif) 1094 { 1095 struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif); 1096 bool *lqm_active = _data; 1097 1098 *lqm_active = *lqm_active || mvm_vif->lqm_active; 1099 } 1100 1101 bool iwl_mvm_lqm_active(struct iwl_mvm *mvm) 1102 { 1103 bool ret = false; 1104 1105 lockdep_assert_held(&mvm->mutex); 1106 ieee80211_iterate_active_interfaces_atomic( 1107 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1108 iwl_mvm_lqm_active_iterator, &ret); 1109 1110 return ret; 1111 } 1112