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 - 2017 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 * Copyright (C) 2015 - 2017 Intel Deutschland GmbH 38 * All rights reserved. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 44 * * Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * * Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in 48 * the documentation and/or other materials provided with the 49 * distribution. 50 * * Neither the name Intel Corporation nor the names of its 51 * contributors may be used to endorse or promote products derived 52 * from this software without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 65 * 66 *****************************************************************************/ 67 #include <net/mac80211.h> 68 69 #include "iwl-debug.h" 70 #include "iwl-io.h" 71 #include "iwl-prph.h" 72 #include "iwl-csr.h" 73 #include "mvm.h" 74 #include "fw/api/rs.h" 75 76 /* 77 * Will return 0 even if the cmd failed when RFKILL is asserted unless 78 * CMD_WANT_SKB is set in cmd->flags. 79 */ 80 int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) 81 { 82 int ret; 83 84 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 85 if (WARN_ON(mvm->d3_test_active)) 86 return -EIO; 87 #endif 88 89 /* 90 * Synchronous commands from this op-mode must hold 91 * the mutex, this ensures we don't try to send two 92 * (or more) synchronous commands at a time. 93 */ 94 if (!(cmd->flags & CMD_ASYNC)) { 95 lockdep_assert_held(&mvm->mutex); 96 if (!(cmd->flags & CMD_SEND_IN_IDLE)) 97 iwl_mvm_ref(mvm, IWL_MVM_REF_SENDING_CMD); 98 } 99 100 ret = iwl_trans_send_cmd(mvm->trans, cmd); 101 102 if (!(cmd->flags & (CMD_ASYNC | CMD_SEND_IN_IDLE))) 103 iwl_mvm_unref(mvm, IWL_MVM_REF_SENDING_CMD); 104 105 /* 106 * If the caller wants the SKB, then don't hide any problems, the 107 * caller might access the response buffer which will be NULL if 108 * the command failed. 109 */ 110 if (cmd->flags & CMD_WANT_SKB) 111 return ret; 112 113 /* Silently ignore failures if RFKILL is asserted */ 114 if (!ret || ret == -ERFKILL) 115 return 0; 116 return ret; 117 } 118 119 int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id, 120 u32 flags, u16 len, const void *data) 121 { 122 struct iwl_host_cmd cmd = { 123 .id = id, 124 .len = { len, }, 125 .data = { data, }, 126 .flags = flags, 127 }; 128 129 return iwl_mvm_send_cmd(mvm, &cmd); 130 } 131 132 /* 133 * We assume that the caller set the status to the success value 134 */ 135 int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, 136 u32 *status) 137 { 138 struct iwl_rx_packet *pkt; 139 struct iwl_cmd_response *resp; 140 int ret, resp_len; 141 142 lockdep_assert_held(&mvm->mutex); 143 144 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 145 if (WARN_ON(mvm->d3_test_active)) 146 return -EIO; 147 #endif 148 149 /* 150 * Only synchronous commands can wait for status, 151 * we use WANT_SKB so the caller can't. 152 */ 153 if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), 154 "cmd flags %x", cmd->flags)) 155 return -EINVAL; 156 157 cmd->flags |= CMD_WANT_SKB; 158 159 ret = iwl_trans_send_cmd(mvm->trans, cmd); 160 if (ret == -ERFKILL) { 161 /* 162 * The command failed because of RFKILL, don't update 163 * the status, leave it as success and return 0. 164 */ 165 return 0; 166 } else if (ret) { 167 return ret; 168 } 169 170 pkt = cmd->resp_pkt; 171 172 resp_len = iwl_rx_packet_payload_len(pkt); 173 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 174 ret = -EIO; 175 goto out_free_resp; 176 } 177 178 resp = (void *)pkt->data; 179 *status = le32_to_cpu(resp->status); 180 out_free_resp: 181 iwl_free_resp(cmd); 182 return ret; 183 } 184 185 /* 186 * We assume that the caller set the status to the sucess value 187 */ 188 int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id, u16 len, 189 const void *data, u32 *status) 190 { 191 struct iwl_host_cmd cmd = { 192 .id = id, 193 .len = { len, }, 194 .data = { data, }, 195 }; 196 197 return iwl_mvm_send_cmd_status(mvm, &cmd, status); 198 } 199 200 #define IWL_DECLARE_RATE_INFO(r) \ 201 [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP 202 203 /* 204 * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP 205 */ 206 static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = { 207 IWL_DECLARE_RATE_INFO(1), 208 IWL_DECLARE_RATE_INFO(2), 209 IWL_DECLARE_RATE_INFO(5), 210 IWL_DECLARE_RATE_INFO(11), 211 IWL_DECLARE_RATE_INFO(6), 212 IWL_DECLARE_RATE_INFO(9), 213 IWL_DECLARE_RATE_INFO(12), 214 IWL_DECLARE_RATE_INFO(18), 215 IWL_DECLARE_RATE_INFO(24), 216 IWL_DECLARE_RATE_INFO(36), 217 IWL_DECLARE_RATE_INFO(48), 218 IWL_DECLARE_RATE_INFO(54), 219 }; 220 221 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, 222 enum nl80211_band band) 223 { 224 int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; 225 int idx; 226 int band_offset = 0; 227 228 /* Legacy rate format, search for match in table */ 229 if (band == NL80211_BAND_5GHZ) 230 band_offset = IWL_FIRST_OFDM_RATE; 231 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) 232 if (fw_rate_idx_to_plcp[idx] == rate) 233 return idx - band_offset; 234 235 return -1; 236 } 237 238 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx) 239 { 240 /* Get PLCP rate for tx_cmd->rate_n_flags */ 241 return fw_rate_idx_to_plcp[rate_idx]; 242 } 243 244 void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 245 { 246 struct iwl_rx_packet *pkt = rxb_addr(rxb); 247 struct iwl_error_resp *err_resp = (void *)pkt->data; 248 249 IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", 250 le32_to_cpu(err_resp->error_type), err_resp->cmd_id); 251 IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", 252 le16_to_cpu(err_resp->bad_cmd_seq_num), 253 le32_to_cpu(err_resp->error_service)); 254 IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n", 255 le64_to_cpu(err_resp->timestamp)); 256 } 257 258 /* 259 * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h. 260 * The parameter should also be a combination of ANT_[ABC]. 261 */ 262 u8 first_antenna(u8 mask) 263 { 264 BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */ 265 if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */ 266 return BIT(0); 267 return BIT(ffs(mask) - 1); 268 } 269 270 /* 271 * Toggles between TX antennas to send the probe request on. 272 * Receives the bitmask of valid TX antennas and the *index* used 273 * for the last TX, and returns the next valid *index* to use. 274 * In order to set it in the tx_cmd, must do BIT(idx). 275 */ 276 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx) 277 { 278 u8 ind = last_idx; 279 int i; 280 281 for (i = 0; i < RATE_MCS_ANT_NUM; i++) { 282 ind = (ind + 1) % RATE_MCS_ANT_NUM; 283 if (valid & BIT(ind)) 284 return ind; 285 } 286 287 WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid); 288 return last_idx; 289 } 290 291 static const struct { 292 const char *name; 293 u8 num; 294 } advanced_lookup[] = { 295 { "NMI_INTERRUPT_WDG", 0x34 }, 296 { "SYSASSERT", 0x35 }, 297 { "UCODE_VERSION_MISMATCH", 0x37 }, 298 { "BAD_COMMAND", 0x38 }, 299 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, 300 { "FATAL_ERROR", 0x3D }, 301 { "NMI_TRM_HW_ERR", 0x46 }, 302 { "NMI_INTERRUPT_TRM", 0x4C }, 303 { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, 304 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, 305 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, 306 { "NMI_INTERRUPT_HOST", 0x66 }, 307 { "NMI_INTERRUPT_ACTION_PT", 0x7C }, 308 { "NMI_INTERRUPT_UNKNOWN", 0x84 }, 309 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, 310 { "ADVANCED_SYSASSERT", 0 }, 311 }; 312 313 static const char *desc_lookup(u32 num) 314 { 315 int i; 316 317 for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++) 318 if (advanced_lookup[i].num == num) 319 return advanced_lookup[i].name; 320 321 /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */ 322 return advanced_lookup[i].name; 323 } 324 325 /* 326 * Note: This structure is read from the device with IO accesses, 327 * and the reading already does the endian conversion. As it is 328 * read with u32-sized accesses, any members with a different size 329 * need to be ordered correctly though! 330 */ 331 struct iwl_error_event_table_v1 { 332 u32 valid; /* (nonzero) valid, (0) log is empty */ 333 u32 error_id; /* type of error */ 334 u32 pc; /* program counter */ 335 u32 blink1; /* branch link */ 336 u32 blink2; /* branch link */ 337 u32 ilink1; /* interrupt link */ 338 u32 ilink2; /* interrupt link */ 339 u32 data1; /* error-specific data */ 340 u32 data2; /* error-specific data */ 341 u32 data3; /* error-specific data */ 342 u32 bcon_time; /* beacon timer */ 343 u32 tsf_low; /* network timestamp function timer */ 344 u32 tsf_hi; /* network timestamp function timer */ 345 u32 gp1; /* GP1 timer register */ 346 u32 gp2; /* GP2 timer register */ 347 u32 gp3; /* GP3 timer register */ 348 u32 ucode_ver; /* uCode version */ 349 u32 hw_ver; /* HW Silicon version */ 350 u32 brd_ver; /* HW board version */ 351 u32 log_pc; /* log program counter */ 352 u32 frame_ptr; /* frame pointer */ 353 u32 stack_ptr; /* stack pointer */ 354 u32 hcmd; /* last host command header */ 355 u32 isr0; /* isr status register LMPM_NIC_ISR0: 356 * rxtx_flag */ 357 u32 isr1; /* isr status register LMPM_NIC_ISR1: 358 * host_flag */ 359 u32 isr2; /* isr status register LMPM_NIC_ISR2: 360 * enc_flag */ 361 u32 isr3; /* isr status register LMPM_NIC_ISR3: 362 * time_flag */ 363 u32 isr4; /* isr status register LMPM_NIC_ISR4: 364 * wico interrupt */ 365 u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */ 366 u32 wait_event; /* wait event() caller address */ 367 u32 l2p_control; /* L2pControlField */ 368 u32 l2p_duration; /* L2pDurationField */ 369 u32 l2p_mhvalid; /* L2pMhValidBits */ 370 u32 l2p_addr_match; /* L2pAddrMatchStat */ 371 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 372 * (LMPM_PMG_SEL) */ 373 u32 u_timestamp; /* indicate when the date and time of the 374 * compilation */ 375 u32 flow_handler; /* FH read/write pointers, RX credit */ 376 } __packed /* LOG_ERROR_TABLE_API_S_VER_1 */; 377 378 struct iwl_error_event_table { 379 u32 valid; /* (nonzero) valid, (0) log is empty */ 380 u32 error_id; /* type of error */ 381 u32 trm_hw_status0; /* TRM HW status */ 382 u32 trm_hw_status1; /* TRM HW status */ 383 u32 blink2; /* branch link */ 384 u32 ilink1; /* interrupt link */ 385 u32 ilink2; /* interrupt link */ 386 u32 data1; /* error-specific data */ 387 u32 data2; /* error-specific data */ 388 u32 data3; /* error-specific data */ 389 u32 bcon_time; /* beacon timer */ 390 u32 tsf_low; /* network timestamp function timer */ 391 u32 tsf_hi; /* network timestamp function timer */ 392 u32 gp1; /* GP1 timer register */ 393 u32 gp2; /* GP2 timer register */ 394 u32 fw_rev_type; /* firmware revision type */ 395 u32 major; /* uCode version major */ 396 u32 minor; /* uCode version minor */ 397 u32 hw_ver; /* HW Silicon version */ 398 u32 brd_ver; /* HW board version */ 399 u32 log_pc; /* log program counter */ 400 u32 frame_ptr; /* frame pointer */ 401 u32 stack_ptr; /* stack pointer */ 402 u32 hcmd; /* last host command header */ 403 u32 isr0; /* isr status register LMPM_NIC_ISR0: 404 * rxtx_flag */ 405 u32 isr1; /* isr status register LMPM_NIC_ISR1: 406 * host_flag */ 407 u32 isr2; /* isr status register LMPM_NIC_ISR2: 408 * enc_flag */ 409 u32 isr3; /* isr status register LMPM_NIC_ISR3: 410 * time_flag */ 411 u32 isr4; /* isr status register LMPM_NIC_ISR4: 412 * wico interrupt */ 413 u32 last_cmd_id; /* last HCMD id handled by the firmware */ 414 u32 wait_event; /* wait event() caller address */ 415 u32 l2p_control; /* L2pControlField */ 416 u32 l2p_duration; /* L2pDurationField */ 417 u32 l2p_mhvalid; /* L2pMhValidBits */ 418 u32 l2p_addr_match; /* L2pAddrMatchStat */ 419 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 420 * (LMPM_PMG_SEL) */ 421 u32 u_timestamp; /* indicate when the date and time of the 422 * compilation */ 423 u32 flow_handler; /* FH read/write pointers, RX credit */ 424 } __packed /* LOG_ERROR_TABLE_API_S_VER_3 */; 425 426 /* 427 * UMAC error struct - relevant starting from family 8000 chip. 428 * Note: This structure is read from the device with IO accesses, 429 * and the reading already does the endian conversion. As it is 430 * read with u32-sized accesses, any members with a different size 431 * need to be ordered correctly though! 432 */ 433 struct iwl_umac_error_event_table { 434 u32 valid; /* (nonzero) valid, (0) log is empty */ 435 u32 error_id; /* type of error */ 436 u32 blink1; /* branch link */ 437 u32 blink2; /* branch link */ 438 u32 ilink1; /* interrupt link */ 439 u32 ilink2; /* interrupt link */ 440 u32 data1; /* error-specific data */ 441 u32 data2; /* error-specific data */ 442 u32 data3; /* error-specific data */ 443 u32 umac_major; 444 u32 umac_minor; 445 u32 frame_pointer; /* core register 27*/ 446 u32 stack_pointer; /* core register 28 */ 447 u32 cmd_header; /* latest host cmd sent to UMAC */ 448 u32 nic_isr_pref; /* ISR status register */ 449 } __packed; 450 451 #define ERROR_START_OFFSET (1 * sizeof(u32)) 452 #define ERROR_ELEM_SIZE (7 * sizeof(u32)) 453 454 static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm) 455 { 456 struct iwl_trans *trans = mvm->trans; 457 struct iwl_umac_error_event_table table; 458 u32 base; 459 460 base = mvm->umac_error_event_table; 461 462 if (base < 0x800000) { 463 IWL_ERR(mvm, 464 "Not valid error log pointer 0x%08X for %s uCode\n", 465 base, 466 (mvm->fwrt.cur_fw_img == IWL_UCODE_INIT) 467 ? "Init" : "RT"); 468 return; 469 } 470 471 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 472 473 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 474 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 475 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 476 mvm->status, table.valid); 477 } 478 479 IWL_ERR(mvm, "0x%08X | %s\n", table.error_id, 480 desc_lookup(table.error_id)); 481 IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1); 482 IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2); 483 IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1); 484 IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2); 485 IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1); 486 IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2); 487 IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3); 488 IWL_ERR(mvm, "0x%08X | umac major\n", table.umac_major); 489 IWL_ERR(mvm, "0x%08X | umac minor\n", table.umac_minor); 490 IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer); 491 IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer); 492 IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header); 493 IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref); 494 } 495 496 static void iwl_mvm_dump_lmac_error_log(struct iwl_mvm *mvm, u32 base) 497 { 498 struct iwl_trans *trans = mvm->trans; 499 struct iwl_error_event_table table; 500 u32 val; 501 502 if (mvm->fwrt.cur_fw_img == IWL_UCODE_INIT) { 503 if (!base) 504 base = mvm->fw->init_errlog_ptr; 505 } else { 506 if (!base) 507 base = mvm->fw->inst_errlog_ptr; 508 } 509 510 if (base < 0x400000) { 511 IWL_ERR(mvm, 512 "Not valid error log pointer 0x%08X for %s uCode\n", 513 base, 514 (mvm->fwrt.cur_fw_img == IWL_UCODE_INIT) 515 ? "Init" : "RT"); 516 return; 517 } 518 519 /* check if there is a HW error */ 520 val = iwl_trans_read_mem32(trans, base); 521 if (((val & ~0xf) == 0xa5a5a5a0) || ((val & ~0xf) == 0x5a5a5a50)) { 522 int err; 523 524 IWL_ERR(trans, "HW error, resetting before reading\n"); 525 526 /* reset the device */ 527 iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); 528 usleep_range(5000, 6000); 529 530 /* set INIT_DONE flag */ 531 iwl_set_bit(trans, CSR_GP_CNTRL, 532 CSR_GP_CNTRL_REG_FLAG_INIT_DONE); 533 534 /* and wait for clock stabilization */ 535 if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) 536 udelay(2); 537 538 err = iwl_poll_bit(trans, CSR_GP_CNTRL, 539 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 540 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 541 25000); 542 if (err < 0) { 543 IWL_DEBUG_INFO(trans, 544 "Failed to reset the card for the dump\n"); 545 return; 546 } 547 } 548 549 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 550 551 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 552 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 553 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 554 mvm->status, table.valid); 555 } 556 557 /* Do not change this output - scripts rely on it */ 558 559 IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version); 560 561 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, 562 table.data1, table.data2, table.data3, 563 table.blink2, table.ilink1, 564 table.ilink2, table.bcon_time, table.gp1, 565 table.gp2, table.fw_rev_type, table.major, 566 table.minor, table.hw_ver, table.brd_ver); 567 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, 568 desc_lookup(table.error_id)); 569 IWL_ERR(mvm, "0x%08X | trm_hw_status0\n", table.trm_hw_status0); 570 IWL_ERR(mvm, "0x%08X | trm_hw_status1\n", table.trm_hw_status1); 571 IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2); 572 IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1); 573 IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2); 574 IWL_ERR(mvm, "0x%08X | data1\n", table.data1); 575 IWL_ERR(mvm, "0x%08X | data2\n", table.data2); 576 IWL_ERR(mvm, "0x%08X | data3\n", table.data3); 577 IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time); 578 IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low); 579 IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi); 580 IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1); 581 IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2); 582 IWL_ERR(mvm, "0x%08X | uCode revision type\n", table.fw_rev_type); 583 IWL_ERR(mvm, "0x%08X | uCode version major\n", table.major); 584 IWL_ERR(mvm, "0x%08X | uCode version minor\n", table.minor); 585 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); 586 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); 587 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); 588 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); 589 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); 590 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); 591 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); 592 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); 593 IWL_ERR(mvm, "0x%08X | last cmd Id\n", table.last_cmd_id); 594 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); 595 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); 596 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); 597 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); 598 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); 599 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); 600 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); 601 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); 602 } 603 604 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) 605 { 606 iwl_mvm_dump_lmac_error_log(mvm, mvm->error_event_table[0]); 607 608 if (mvm->error_event_table[1]) 609 iwl_mvm_dump_lmac_error_log(mvm, mvm->error_event_table[1]); 610 611 if (mvm->support_umac_log) 612 iwl_mvm_dump_umac_error_log(mvm); 613 } 614 615 int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, u8 minq, u8 maxq) 616 { 617 int i; 618 619 lockdep_assert_held(&mvm->queue_info_lock); 620 621 /* This should not be hit with new TX path */ 622 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 623 return -ENOSPC; 624 625 /* Start by looking for a free queue */ 626 for (i = minq; i <= maxq; i++) 627 if (mvm->queue_info[i].hw_queue_refcount == 0 && 628 mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 629 return i; 630 631 /* 632 * If no free queue found - settle for an inactive one to reconfigure 633 * Make sure that the inactive queue either already belongs to this STA, 634 * or that if it belongs to another one - it isn't the reserved queue 635 */ 636 for (i = minq; i <= maxq; i++) 637 if (mvm->queue_info[i].status == IWL_MVM_QUEUE_INACTIVE && 638 (sta_id == mvm->queue_info[i].ra_sta_id || 639 !mvm->queue_info[i].reserved)) 640 return i; 641 642 return -ENOSPC; 643 } 644 645 int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id, 646 int tid, int frame_limit, u16 ssn) 647 { 648 struct iwl_scd_txq_cfg_cmd cmd = { 649 .scd_queue = queue, 650 .action = SCD_CFG_ENABLE_QUEUE, 651 .window = frame_limit, 652 .sta_id = sta_id, 653 .ssn = cpu_to_le16(ssn), 654 .tx_fifo = fifo, 655 .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 656 queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 657 .tid = tid, 658 }; 659 int ret; 660 661 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 662 return -EINVAL; 663 664 spin_lock_bh(&mvm->queue_info_lock); 665 if (WARN(mvm->queue_info[queue].hw_queue_refcount == 0, 666 "Trying to reconfig unallocated queue %d\n", queue)) { 667 spin_unlock_bh(&mvm->queue_info_lock); 668 return -ENXIO; 669 } 670 spin_unlock_bh(&mvm->queue_info_lock); 671 672 IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 673 674 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 675 WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 676 queue, fifo, ret); 677 678 return ret; 679 } 680 681 static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue, 682 int mac80211_queue, u8 sta_id, u8 tid) 683 { 684 bool enable_queue = true; 685 686 spin_lock_bh(&mvm->queue_info_lock); 687 688 /* Make sure this TID isn't already enabled */ 689 if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 690 spin_unlock_bh(&mvm->queue_info_lock); 691 IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 692 queue, tid); 693 return false; 694 } 695 696 /* Update mappings and refcounts */ 697 if (mvm->queue_info[queue].hw_queue_refcount > 0) 698 enable_queue = false; 699 700 if (mac80211_queue != IEEE80211_INVAL_HW_QUEUE) { 701 WARN(mac80211_queue >= 702 BITS_PER_BYTE * sizeof(mvm->hw_queue_to_mac80211[0]), 703 "cannot track mac80211 queue %d (queue %d, sta %d, tid %d)\n", 704 mac80211_queue, queue, sta_id, tid); 705 mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue); 706 } 707 708 mvm->queue_info[queue].hw_queue_refcount++; 709 mvm->queue_info[queue].tid_bitmap |= BIT(tid); 710 mvm->queue_info[queue].ra_sta_id = sta_id; 711 712 if (enable_queue) { 713 if (tid != IWL_MAX_TID_COUNT) 714 mvm->queue_info[queue].mac80211_ac = 715 tid_to_mac80211_ac[tid]; 716 else 717 mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 718 719 mvm->queue_info[queue].txq_tid = tid; 720 } 721 722 IWL_DEBUG_TX_QUEUES(mvm, 723 "Enabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 724 queue, mvm->queue_info[queue].hw_queue_refcount, 725 mvm->hw_queue_to_mac80211[queue]); 726 727 spin_unlock_bh(&mvm->queue_info_lock); 728 729 return enable_queue; 730 } 731 732 int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, int mac80211_queue, 733 u8 sta_id, u8 tid, unsigned int timeout) 734 { 735 struct iwl_tx_queue_cfg_cmd cmd = { 736 .flags = cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE), 737 .sta_id = sta_id, 738 .tid = tid, 739 }; 740 int queue; 741 742 if (cmd.tid == IWL_MAX_TID_COUNT) 743 cmd.tid = IWL_MGMT_TID; 744 queue = iwl_trans_txq_alloc(mvm->trans, (void *)&cmd, 745 SCD_QUEUE_CFG, timeout); 746 747 if (queue < 0) { 748 IWL_DEBUG_TX_QUEUES(mvm, 749 "Failed allocating TXQ for sta %d tid %d, ret: %d\n", 750 sta_id, tid, queue); 751 return queue; 752 } 753 754 IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 755 queue, sta_id, tid); 756 757 mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue); 758 IWL_DEBUG_TX_QUEUES(mvm, 759 "Enabling TXQ #%d (mac80211 map:0x%x)\n", 760 queue, mvm->hw_queue_to_mac80211[queue]); 761 762 return queue; 763 } 764 765 bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 766 u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg, 767 unsigned int wdg_timeout) 768 { 769 struct iwl_scd_txq_cfg_cmd cmd = { 770 .scd_queue = queue, 771 .action = SCD_CFG_ENABLE_QUEUE, 772 .window = cfg->frame_limit, 773 .sta_id = cfg->sta_id, 774 .ssn = cpu_to_le16(ssn), 775 .tx_fifo = cfg->fifo, 776 .aggregate = cfg->aggregate, 777 .tid = cfg->tid, 778 }; 779 bool inc_ssn; 780 781 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 782 return false; 783 784 /* Send the enabling command if we need to */ 785 if (!iwl_mvm_update_txq_mapping(mvm, queue, mac80211_queue, 786 cfg->sta_id, cfg->tid)) 787 return false; 788 789 inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 790 NULL, wdg_timeout); 791 if (inc_ssn) 792 le16_add_cpu(&cmd.ssn, 1); 793 794 WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 795 "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 796 797 return inc_ssn; 798 } 799 800 int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 801 u8 tid, u8 flags) 802 { 803 struct iwl_scd_txq_cfg_cmd cmd = { 804 .scd_queue = queue, 805 .action = SCD_CFG_DISABLE_QUEUE, 806 }; 807 bool remove_mac_queue = true; 808 int ret; 809 810 if (iwl_mvm_has_new_tx_api(mvm)) { 811 spin_lock_bh(&mvm->queue_info_lock); 812 mvm->hw_queue_to_mac80211[queue] &= ~BIT(mac80211_queue); 813 spin_unlock_bh(&mvm->queue_info_lock); 814 815 iwl_trans_txq_free(mvm->trans, queue); 816 817 return 0; 818 } 819 820 spin_lock_bh(&mvm->queue_info_lock); 821 822 if (WARN_ON(mvm->queue_info[queue].hw_queue_refcount == 0)) { 823 spin_unlock_bh(&mvm->queue_info_lock); 824 return 0; 825 } 826 827 mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 828 829 /* 830 * If there is another TID with the same AC - don't remove the MAC queue 831 * from the mapping 832 */ 833 if (tid < IWL_MAX_TID_COUNT) { 834 unsigned long tid_bitmap = 835 mvm->queue_info[queue].tid_bitmap; 836 int ac = tid_to_mac80211_ac[tid]; 837 int i; 838 839 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT) { 840 if (tid_to_mac80211_ac[i] == ac) 841 remove_mac_queue = false; 842 } 843 } 844 845 if (remove_mac_queue) 846 mvm->hw_queue_to_mac80211[queue] &= 847 ~BIT(mac80211_queue); 848 mvm->queue_info[queue].hw_queue_refcount--; 849 850 cmd.action = mvm->queue_info[queue].hw_queue_refcount ? 851 SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 852 if (cmd.action == SCD_CFG_DISABLE_QUEUE) 853 mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 854 855 IWL_DEBUG_TX_QUEUES(mvm, 856 "Disabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 857 queue, 858 mvm->queue_info[queue].hw_queue_refcount, 859 mvm->hw_queue_to_mac80211[queue]); 860 861 /* If the queue is still enabled - nothing left to do in this func */ 862 if (cmd.action == SCD_CFG_ENABLE_QUEUE) { 863 spin_unlock_bh(&mvm->queue_info_lock); 864 return 0; 865 } 866 867 cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 868 cmd.tid = mvm->queue_info[queue].txq_tid; 869 870 /* Make sure queue info is correct even though we overwrite it */ 871 WARN(mvm->queue_info[queue].hw_queue_refcount || 872 mvm->queue_info[queue].tid_bitmap || 873 mvm->hw_queue_to_mac80211[queue], 874 "TXQ #%d info out-of-sync - refcount=%d, mac map=0x%x, tid=0x%x\n", 875 queue, mvm->queue_info[queue].hw_queue_refcount, 876 mvm->hw_queue_to_mac80211[queue], 877 mvm->queue_info[queue].tid_bitmap); 878 879 /* If we are here - the queue is freed and we can zero out these vals */ 880 mvm->queue_info[queue].hw_queue_refcount = 0; 881 mvm->queue_info[queue].tid_bitmap = 0; 882 mvm->hw_queue_to_mac80211[queue] = 0; 883 884 /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 885 mvm->queue_info[queue].reserved = false; 886 887 spin_unlock_bh(&mvm->queue_info_lock); 888 889 iwl_trans_txq_disable(mvm->trans, queue, false); 890 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 891 sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 892 893 if (ret) 894 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 895 queue, ret); 896 return ret; 897 } 898 899 /** 900 * iwl_mvm_send_lq_cmd() - Send link quality command 901 * @init: This command is sent as part of station initialization right 902 * after station has been added. 903 * 904 * The link quality command is sent as the last step of station creation. 905 * This is the special case in which init is set and we call a callback in 906 * this case to clear the state indicating that station creation is in 907 * progress. 908 */ 909 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init) 910 { 911 struct iwl_host_cmd cmd = { 912 .id = LQ_CMD, 913 .len = { sizeof(struct iwl_lq_cmd), }, 914 .flags = init ? 0 : CMD_ASYNC, 915 .data = { lq, }, 916 }; 917 918 if (WARN_ON(lq->sta_id == IWL_MVM_INVALID_STA)) 919 return -EINVAL; 920 921 return iwl_mvm_send_cmd(mvm, &cmd); 922 } 923 924 /** 925 * iwl_mvm_update_smps - Get a request to change the SMPS mode 926 * @req_type: The part of the driver who call for a change. 927 * @smps_requests: The request to change the SMPS mode. 928 * 929 * Get a requst to change the SMPS mode, 930 * and change it according to all other requests in the driver. 931 */ 932 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 933 enum iwl_mvm_smps_type_request req_type, 934 enum ieee80211_smps_mode smps_request) 935 { 936 struct iwl_mvm_vif *mvmvif; 937 enum ieee80211_smps_mode smps_mode; 938 int i; 939 940 lockdep_assert_held(&mvm->mutex); 941 942 /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ 943 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 944 return; 945 946 if (vif->type == NL80211_IFTYPE_AP) 947 smps_mode = IEEE80211_SMPS_OFF; 948 else 949 smps_mode = IEEE80211_SMPS_AUTOMATIC; 950 951 mvmvif = iwl_mvm_vif_from_mac80211(vif); 952 mvmvif->smps_requests[req_type] = smps_request; 953 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 954 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { 955 smps_mode = IEEE80211_SMPS_STATIC; 956 break; 957 } 958 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 959 smps_mode = IEEE80211_SMPS_DYNAMIC; 960 } 961 962 ieee80211_request_smps(vif, smps_mode); 963 } 964 965 int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear) 966 { 967 struct iwl_statistics_cmd scmd = { 968 .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0, 969 }; 970 struct iwl_host_cmd cmd = { 971 .id = STATISTICS_CMD, 972 .len[0] = sizeof(scmd), 973 .data[0] = &scmd, 974 .flags = CMD_WANT_SKB, 975 }; 976 int ret; 977 978 ret = iwl_mvm_send_cmd(mvm, &cmd); 979 if (ret) 980 return ret; 981 982 iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt); 983 iwl_free_resp(&cmd); 984 985 if (clear) 986 iwl_mvm_accu_radio_stats(mvm); 987 988 return 0; 989 } 990 991 void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm) 992 { 993 mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time; 994 mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time; 995 mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf; 996 mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan; 997 } 998 999 static void iwl_mvm_diversity_iter(void *_data, u8 *mac, 1000 struct ieee80211_vif *vif) 1001 { 1002 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1003 bool *result = _data; 1004 int i; 1005 1006 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 1007 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || 1008 mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 1009 *result = false; 1010 } 1011 } 1012 1013 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) 1014 { 1015 bool result = true; 1016 1017 lockdep_assert_held(&mvm->mutex); 1018 1019 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 1020 return false; 1021 1022 if (mvm->cfg->rx_with_siso_diversity) 1023 return false; 1024 1025 ieee80211_iterate_active_interfaces_atomic( 1026 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1027 iwl_mvm_diversity_iter, &result); 1028 1029 return result; 1030 } 1031 1032 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1033 bool prev) 1034 { 1035 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1036 int res; 1037 1038 lockdep_assert_held(&mvm->mutex); 1039 1040 if (iwl_mvm_vif_low_latency(mvmvif) == prev) 1041 return 0; 1042 1043 res = iwl_mvm_update_quotas(mvm, false, NULL); 1044 if (res) 1045 return res; 1046 1047 iwl_mvm_bt_coex_vif_change(mvm); 1048 1049 return iwl_mvm_power_update_mac(mvm); 1050 } 1051 1052 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) 1053 { 1054 bool *result = _data; 1055 1056 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) 1057 *result = true; 1058 } 1059 1060 bool iwl_mvm_low_latency(struct iwl_mvm *mvm) 1061 { 1062 bool result = false; 1063 1064 ieee80211_iterate_active_interfaces_atomic( 1065 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1066 iwl_mvm_ll_iter, &result); 1067 1068 return result; 1069 } 1070 1071 struct iwl_bss_iter_data { 1072 struct ieee80211_vif *vif; 1073 bool error; 1074 }; 1075 1076 static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac, 1077 struct ieee80211_vif *vif) 1078 { 1079 struct iwl_bss_iter_data *data = _data; 1080 1081 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 1082 return; 1083 1084 if (data->vif) { 1085 data->error = true; 1086 return; 1087 } 1088 1089 data->vif = vif; 1090 } 1091 1092 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm) 1093 { 1094 struct iwl_bss_iter_data bss_iter_data = {}; 1095 1096 ieee80211_iterate_active_interfaces_atomic( 1097 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1098 iwl_mvm_bss_iface_iterator, &bss_iter_data); 1099 1100 if (bss_iter_data.error) { 1101 IWL_ERR(mvm, "More than one managed interface active!\n"); 1102 return ERR_PTR(-EINVAL); 1103 } 1104 1105 return bss_iter_data.vif; 1106 } 1107 1108 struct iwl_sta_iter_data { 1109 bool assoc; 1110 }; 1111 1112 static void iwl_mvm_sta_iface_iterator(void *_data, u8 *mac, 1113 struct ieee80211_vif *vif) 1114 { 1115 struct iwl_sta_iter_data *data = _data; 1116 1117 if (vif->type != NL80211_IFTYPE_STATION) 1118 return; 1119 1120 if (vif->bss_conf.assoc) 1121 data->assoc = true; 1122 } 1123 1124 bool iwl_mvm_is_vif_assoc(struct iwl_mvm *mvm) 1125 { 1126 struct iwl_sta_iter_data data = { 1127 .assoc = false, 1128 }; 1129 1130 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 1131 IEEE80211_IFACE_ITER_NORMAL, 1132 iwl_mvm_sta_iface_iterator, 1133 &data); 1134 return data.assoc; 1135 } 1136 1137 unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm, 1138 struct ieee80211_vif *vif, 1139 bool tdls, bool cmd_q) 1140 { 1141 struct iwl_fw_dbg_trigger_tlv *trigger; 1142 struct iwl_fw_dbg_trigger_txq_timer *txq_timer; 1143 unsigned int default_timeout = 1144 cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout; 1145 1146 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) 1147 return iwlmvm_mod_params.tfd_q_hang_detect ? 1148 default_timeout : IWL_WATCHDOG_DISABLED; 1149 1150 trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS); 1151 txq_timer = (void *)trigger->data; 1152 1153 if (tdls) 1154 return le32_to_cpu(txq_timer->tdls); 1155 1156 if (cmd_q) 1157 return le32_to_cpu(txq_timer->command_queue); 1158 1159 if (WARN_ON(!vif)) 1160 return default_timeout; 1161 1162 switch (ieee80211_vif_type_p2p(vif)) { 1163 case NL80211_IFTYPE_ADHOC: 1164 return le32_to_cpu(txq_timer->ibss); 1165 case NL80211_IFTYPE_STATION: 1166 return le32_to_cpu(txq_timer->bss); 1167 case NL80211_IFTYPE_AP: 1168 return le32_to_cpu(txq_timer->softap); 1169 case NL80211_IFTYPE_P2P_CLIENT: 1170 return le32_to_cpu(txq_timer->p2p_client); 1171 case NL80211_IFTYPE_P2P_GO: 1172 return le32_to_cpu(txq_timer->p2p_go); 1173 case NL80211_IFTYPE_P2P_DEVICE: 1174 return le32_to_cpu(txq_timer->p2p_device); 1175 default: 1176 WARN_ON(1); 1177 return mvm->cfg->base_params->wd_timeout; 1178 } 1179 } 1180 1181 void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1182 const char *errmsg) 1183 { 1184 struct iwl_fw_dbg_trigger_tlv *trig; 1185 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 1186 1187 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 1188 goto out; 1189 1190 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 1191 trig_mlme = (void *)trig->data; 1192 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt, 1193 ieee80211_vif_to_wdev(vif), trig)) 1194 goto out; 1195 1196 if (trig_mlme->stop_connection_loss && 1197 --trig_mlme->stop_connection_loss) 1198 goto out; 1199 1200 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, "%s", errmsg); 1201 1202 out: 1203 ieee80211_connection_loss(vif); 1204 } 1205 1206 /* 1207 * Remove inactive TIDs of a given queue. 1208 * If all queue TIDs are inactive - mark the queue as inactive 1209 * If only some the queue TIDs are inactive - unmap them from the queue 1210 */ 1211 static void iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 1212 struct iwl_mvm_sta *mvmsta, int queue, 1213 unsigned long tid_bitmap) 1214 { 1215 int tid; 1216 1217 lockdep_assert_held(&mvmsta->lock); 1218 lockdep_assert_held(&mvm->queue_info_lock); 1219 1220 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 1221 return; 1222 1223 /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 1224 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1225 /* If some TFDs are still queued - don't mark TID as inactive */ 1226 if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid])) 1227 tid_bitmap &= ~BIT(tid); 1228 1229 /* Don't mark as inactive any TID that has an active BA */ 1230 if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) 1231 tid_bitmap &= ~BIT(tid); 1232 } 1233 1234 /* If all TIDs in the queue are inactive - mark queue as inactive. */ 1235 if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1236 mvm->queue_info[queue].status = IWL_MVM_QUEUE_INACTIVE; 1237 1238 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) 1239 mvmsta->tid_data[tid].is_tid_active = false; 1240 1241 IWL_DEBUG_TX_QUEUES(mvm, "Queue %d marked as inactive\n", 1242 queue); 1243 return; 1244 } 1245 1246 /* 1247 * If we are here, this is a shared queue and not all TIDs timed-out. 1248 * Remove the ones that did. 1249 */ 1250 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1251 int mac_queue = mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]; 1252 1253 mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE; 1254 mvm->hw_queue_to_mac80211[queue] &= ~BIT(mac_queue); 1255 mvm->queue_info[queue].hw_queue_refcount--; 1256 mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 1257 mvmsta->tid_data[tid].is_tid_active = false; 1258 1259 IWL_DEBUG_TX_QUEUES(mvm, 1260 "Removing inactive TID %d from shared Q:%d\n", 1261 tid, queue); 1262 } 1263 1264 IWL_DEBUG_TX_QUEUES(mvm, 1265 "TXQ #%d left with tid bitmap 0x%x\n", queue, 1266 mvm->queue_info[queue].tid_bitmap); 1267 1268 /* 1269 * There may be different TIDs with the same mac queues, so make 1270 * sure all TIDs have existing corresponding mac queues enabled 1271 */ 1272 tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1273 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1274 mvm->hw_queue_to_mac80211[queue] |= 1275 BIT(mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]); 1276 } 1277 1278 /* If the queue is marked as shared - "unshare" it */ 1279 if (mvm->queue_info[queue].hw_queue_refcount == 1 && 1280 mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 1281 mvm->queue_info[queue].status = IWL_MVM_QUEUE_RECONFIGURING; 1282 IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 1283 queue); 1284 } 1285 } 1286 1287 void iwl_mvm_inactivity_check(struct iwl_mvm *mvm) 1288 { 1289 unsigned long timeout_queues_map = 0; 1290 unsigned long now = jiffies; 1291 int i; 1292 1293 if (iwl_mvm_has_new_tx_api(mvm)) 1294 return; 1295 1296 spin_lock_bh(&mvm->queue_info_lock); 1297 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) 1298 if (mvm->queue_info[i].hw_queue_refcount > 0) 1299 timeout_queues_map |= BIT(i); 1300 spin_unlock_bh(&mvm->queue_info_lock); 1301 1302 rcu_read_lock(); 1303 1304 /* 1305 * If a queue time outs - mark it as INACTIVE (don't remove right away 1306 * if we don't have to.) This is an optimization in case traffic comes 1307 * later, and we don't HAVE to use a currently-inactive queue 1308 */ 1309 for_each_set_bit(i, &timeout_queues_map, IWL_MAX_HW_QUEUES) { 1310 struct ieee80211_sta *sta; 1311 struct iwl_mvm_sta *mvmsta; 1312 u8 sta_id; 1313 int tid; 1314 unsigned long inactive_tid_bitmap = 0; 1315 unsigned long queue_tid_bitmap; 1316 1317 spin_lock_bh(&mvm->queue_info_lock); 1318 queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1319 1320 /* If TXQ isn't in active use anyway - nothing to do here... */ 1321 if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1322 mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) { 1323 spin_unlock_bh(&mvm->queue_info_lock); 1324 continue; 1325 } 1326 1327 /* Check to see if there are inactive TIDs on this queue */ 1328 for_each_set_bit(tid, &queue_tid_bitmap, 1329 IWL_MAX_TID_COUNT + 1) { 1330 if (time_after(mvm->queue_info[i].last_frame_time[tid] + 1331 IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 1332 continue; 1333 1334 inactive_tid_bitmap |= BIT(tid); 1335 } 1336 spin_unlock_bh(&mvm->queue_info_lock); 1337 1338 /* If all TIDs are active - finish check on this queue */ 1339 if (!inactive_tid_bitmap) 1340 continue; 1341 1342 /* 1343 * If we are here - the queue hadn't been served recently and is 1344 * in use 1345 */ 1346 1347 sta_id = mvm->queue_info[i].ra_sta_id; 1348 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1349 1350 /* 1351 * If the STA doesn't exist anymore, it isn't an error. It could 1352 * be that it was removed since getting the queues, and in this 1353 * case it should've inactivated its queues anyway. 1354 */ 1355 if (IS_ERR_OR_NULL(sta)) 1356 continue; 1357 1358 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1359 1360 spin_lock_bh(&mvmsta->lock); 1361 spin_lock(&mvm->queue_info_lock); 1362 iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 1363 inactive_tid_bitmap); 1364 spin_unlock(&mvm->queue_info_lock); 1365 spin_unlock_bh(&mvmsta->lock); 1366 } 1367 1368 rcu_read_unlock(); 1369 } 1370 1371 void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime) 1372 { 1373 bool ps_disabled; 1374 1375 lockdep_assert_held(&mvm->mutex); 1376 1377 /* Disable power save when reading GP2 */ 1378 ps_disabled = mvm->ps_disabled; 1379 if (!ps_disabled) { 1380 mvm->ps_disabled = true; 1381 iwl_mvm_power_update_device(mvm); 1382 } 1383 1384 *gp2 = iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG); 1385 *boottime = ktime_get_boot_ns(); 1386 1387 if (!ps_disabled) { 1388 mvm->ps_disabled = ps_disabled; 1389 iwl_mvm_power_update_device(mvm); 1390 } 1391 } 1392 1393 int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif, 1394 enum iwl_lqm_cmd_operatrions operation, 1395 u32 duration, u32 timeout) 1396 { 1397 struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif); 1398 struct iwl_link_qual_msrmnt_cmd cmd = { 1399 .cmd_operation = cpu_to_le32(operation), 1400 .mac_id = cpu_to_le32(mvm_vif->id), 1401 .measurement_time = cpu_to_le32(duration), 1402 .timeout = cpu_to_le32(timeout), 1403 }; 1404 u32 cmdid = 1405 iwl_cmd_id(LINK_QUALITY_MEASUREMENT_CMD, MAC_CONF_GROUP, 0); 1406 int ret; 1407 1408 if (!fw_has_capa(&mvm_vif->mvm->fw->ucode_capa, 1409 IWL_UCODE_TLV_CAPA_LQM_SUPPORT)) 1410 return -EOPNOTSUPP; 1411 1412 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 1413 return -EINVAL; 1414 1415 switch (operation) { 1416 case LQM_CMD_OPERATION_START_MEASUREMENT: 1417 if (iwl_mvm_lqm_active(mvm_vif->mvm)) 1418 return -EBUSY; 1419 if (!vif->bss_conf.assoc) 1420 return -EINVAL; 1421 mvm_vif->lqm_active = true; 1422 break; 1423 case LQM_CMD_OPERATION_STOP_MEASUREMENT: 1424 if (!iwl_mvm_lqm_active(mvm_vif->mvm)) 1425 return -EINVAL; 1426 break; 1427 default: 1428 return -EINVAL; 1429 } 1430 1431 ret = iwl_mvm_send_cmd_pdu(mvm_vif->mvm, cmdid, 0, sizeof(cmd), 1432 &cmd); 1433 1434 /* command failed - roll back lqm_active state */ 1435 if (ret) { 1436 mvm_vif->lqm_active = 1437 operation == LQM_CMD_OPERATION_STOP_MEASUREMENT; 1438 } 1439 1440 return ret; 1441 } 1442 1443 static void iwl_mvm_lqm_active_iterator(void *_data, u8 *mac, 1444 struct ieee80211_vif *vif) 1445 { 1446 struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif); 1447 bool *lqm_active = _data; 1448 1449 *lqm_active = *lqm_active || mvm_vif->lqm_active; 1450 } 1451 1452 bool iwl_mvm_lqm_active(struct iwl_mvm *mvm) 1453 { 1454 bool ret = false; 1455 1456 lockdep_assert_held(&mvm->mutex); 1457 ieee80211_iterate_active_interfaces_atomic( 1458 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1459 iwl_mvm_lqm_active_iterator, &ret); 1460 1461 return ret; 1462 } 1463