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 "fw-dbg.h" 74 #include "mvm.h" 75 #include "fw-api-rs.h" 76 77 /* 78 * Will return 0 even if the cmd failed when RFKILL is asserted unless 79 * CMD_WANT_SKB is set in cmd->flags. 80 */ 81 int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) 82 { 83 int ret; 84 85 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 86 if (WARN_ON(mvm->d3_test_active)) 87 return -EIO; 88 #endif 89 90 /* 91 * Synchronous commands from this op-mode must hold 92 * the mutex, this ensures we don't try to send two 93 * (or more) synchronous commands at a time. 94 */ 95 if (!(cmd->flags & CMD_ASYNC)) { 96 lockdep_assert_held(&mvm->mutex); 97 if (!(cmd->flags & CMD_SEND_IN_IDLE)) 98 iwl_mvm_ref(mvm, IWL_MVM_REF_SENDING_CMD); 99 } 100 101 ret = iwl_trans_send_cmd(mvm->trans, cmd); 102 103 if (!(cmd->flags & (CMD_ASYNC | CMD_SEND_IN_IDLE))) 104 iwl_mvm_unref(mvm, IWL_MVM_REF_SENDING_CMD); 105 106 /* 107 * If the caller wants the SKB, then don't hide any problems, the 108 * caller might access the response buffer which will be NULL if 109 * the command failed. 110 */ 111 if (cmd->flags & CMD_WANT_SKB) 112 return ret; 113 114 /* Silently ignore failures if RFKILL is asserted */ 115 if (!ret || ret == -ERFKILL) 116 return 0; 117 return ret; 118 } 119 120 int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id, 121 u32 flags, u16 len, const void *data) 122 { 123 struct iwl_host_cmd cmd = { 124 .id = id, 125 .len = { len, }, 126 .data = { data, }, 127 .flags = flags, 128 }; 129 130 return iwl_mvm_send_cmd(mvm, &cmd); 131 } 132 133 /* 134 * We assume that the caller set the status to the success value 135 */ 136 int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, 137 u32 *status) 138 { 139 struct iwl_rx_packet *pkt; 140 struct iwl_cmd_response *resp; 141 int ret, resp_len; 142 143 lockdep_assert_held(&mvm->mutex); 144 145 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 146 if (WARN_ON(mvm->d3_test_active)) 147 return -EIO; 148 #endif 149 150 /* 151 * Only synchronous commands can wait for status, 152 * we use WANT_SKB so the caller can't. 153 */ 154 if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), 155 "cmd flags %x", cmd->flags)) 156 return -EINVAL; 157 158 cmd->flags |= CMD_WANT_SKB; 159 160 ret = iwl_trans_send_cmd(mvm->trans, cmd); 161 if (ret == -ERFKILL) { 162 /* 163 * The command failed because of RFKILL, don't update 164 * the status, leave it as success and return 0. 165 */ 166 return 0; 167 } else if (ret) { 168 return ret; 169 } 170 171 pkt = cmd->resp_pkt; 172 173 resp_len = iwl_rx_packet_payload_len(pkt); 174 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 175 ret = -EIO; 176 goto out_free_resp; 177 } 178 179 resp = (void *)pkt->data; 180 *status = le32_to_cpu(resp->status); 181 out_free_resp: 182 iwl_free_resp(cmd); 183 return ret; 184 } 185 186 /* 187 * We assume that the caller set the status to the sucess value 188 */ 189 int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id, u16 len, 190 const void *data, u32 *status) 191 { 192 struct iwl_host_cmd cmd = { 193 .id = id, 194 .len = { len, }, 195 .data = { data, }, 196 }; 197 198 return iwl_mvm_send_cmd_status(mvm, &cmd, status); 199 } 200 201 #define IWL_DECLARE_RATE_INFO(r) \ 202 [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP 203 204 /* 205 * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP 206 */ 207 static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = { 208 IWL_DECLARE_RATE_INFO(1), 209 IWL_DECLARE_RATE_INFO(2), 210 IWL_DECLARE_RATE_INFO(5), 211 IWL_DECLARE_RATE_INFO(11), 212 IWL_DECLARE_RATE_INFO(6), 213 IWL_DECLARE_RATE_INFO(9), 214 IWL_DECLARE_RATE_INFO(12), 215 IWL_DECLARE_RATE_INFO(18), 216 IWL_DECLARE_RATE_INFO(24), 217 IWL_DECLARE_RATE_INFO(36), 218 IWL_DECLARE_RATE_INFO(48), 219 IWL_DECLARE_RATE_INFO(54), 220 }; 221 222 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, 223 enum nl80211_band band) 224 { 225 int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; 226 int idx; 227 int band_offset = 0; 228 229 /* Legacy rate format, search for match in table */ 230 if (band == NL80211_BAND_5GHZ) 231 band_offset = IWL_FIRST_OFDM_RATE; 232 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) 233 if (fw_rate_idx_to_plcp[idx] == rate) 234 return idx - band_offset; 235 236 return -1; 237 } 238 239 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx) 240 { 241 /* Get PLCP rate for tx_cmd->rate_n_flags */ 242 return fw_rate_idx_to_plcp[rate_idx]; 243 } 244 245 void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 246 { 247 struct iwl_rx_packet *pkt = rxb_addr(rxb); 248 struct iwl_error_resp *err_resp = (void *)pkt->data; 249 250 IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", 251 le32_to_cpu(err_resp->error_type), err_resp->cmd_id); 252 IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", 253 le16_to_cpu(err_resp->bad_cmd_seq_num), 254 le32_to_cpu(err_resp->error_service)); 255 IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n", 256 le64_to_cpu(err_resp->timestamp)); 257 } 258 259 /* 260 * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h. 261 * The parameter should also be a combination of ANT_[ABC]. 262 */ 263 u8 first_antenna(u8 mask) 264 { 265 BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */ 266 if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */ 267 return BIT(0); 268 return BIT(ffs(mask) - 1); 269 } 270 271 /* 272 * Toggles between TX antennas to send the probe request on. 273 * Receives the bitmask of valid TX antennas and the *index* used 274 * for the last TX, and returns the next valid *index* to use. 275 * In order to set it in the tx_cmd, must do BIT(idx). 276 */ 277 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx) 278 { 279 u8 ind = last_idx; 280 int i; 281 282 for (i = 0; i < RATE_MCS_ANT_NUM; i++) { 283 ind = (ind + 1) % RATE_MCS_ANT_NUM; 284 if (valid & BIT(ind)) 285 return ind; 286 } 287 288 WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid); 289 return last_idx; 290 } 291 292 static const struct { 293 const char *name; 294 u8 num; 295 } advanced_lookup[] = { 296 { "NMI_INTERRUPT_WDG", 0x34 }, 297 { "SYSASSERT", 0x35 }, 298 { "UCODE_VERSION_MISMATCH", 0x37 }, 299 { "BAD_COMMAND", 0x38 }, 300 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, 301 { "FATAL_ERROR", 0x3D }, 302 { "NMI_TRM_HW_ERR", 0x46 }, 303 { "NMI_INTERRUPT_TRM", 0x4C }, 304 { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, 305 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, 306 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, 307 { "NMI_INTERRUPT_HOST", 0x66 }, 308 { "NMI_INTERRUPT_ACTION_PT", 0x7C }, 309 { "NMI_INTERRUPT_UNKNOWN", 0x84 }, 310 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, 311 { "ADVANCED_SYSASSERT", 0 }, 312 }; 313 314 static const char *desc_lookup(u32 num) 315 { 316 int i; 317 318 for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++) 319 if (advanced_lookup[i].num == num) 320 return advanced_lookup[i].name; 321 322 /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */ 323 return advanced_lookup[i].name; 324 } 325 326 /* 327 * Note: This structure is read from the device with IO accesses, 328 * and the reading already does the endian conversion. As it is 329 * read with u32-sized accesses, any members with a different size 330 * need to be ordered correctly though! 331 */ 332 struct iwl_error_event_table_v1 { 333 u32 valid; /* (nonzero) valid, (0) log is empty */ 334 u32 error_id; /* type of error */ 335 u32 pc; /* program counter */ 336 u32 blink1; /* branch link */ 337 u32 blink2; /* branch link */ 338 u32 ilink1; /* interrupt link */ 339 u32 ilink2; /* interrupt link */ 340 u32 data1; /* error-specific data */ 341 u32 data2; /* error-specific data */ 342 u32 data3; /* error-specific data */ 343 u32 bcon_time; /* beacon timer */ 344 u32 tsf_low; /* network timestamp function timer */ 345 u32 tsf_hi; /* network timestamp function timer */ 346 u32 gp1; /* GP1 timer register */ 347 u32 gp2; /* GP2 timer register */ 348 u32 gp3; /* GP3 timer register */ 349 u32 ucode_ver; /* uCode version */ 350 u32 hw_ver; /* HW Silicon version */ 351 u32 brd_ver; /* HW board version */ 352 u32 log_pc; /* log program counter */ 353 u32 frame_ptr; /* frame pointer */ 354 u32 stack_ptr; /* stack pointer */ 355 u32 hcmd; /* last host command header */ 356 u32 isr0; /* isr status register LMPM_NIC_ISR0: 357 * rxtx_flag */ 358 u32 isr1; /* isr status register LMPM_NIC_ISR1: 359 * host_flag */ 360 u32 isr2; /* isr status register LMPM_NIC_ISR2: 361 * enc_flag */ 362 u32 isr3; /* isr status register LMPM_NIC_ISR3: 363 * time_flag */ 364 u32 isr4; /* isr status register LMPM_NIC_ISR4: 365 * wico interrupt */ 366 u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */ 367 u32 wait_event; /* wait event() caller address */ 368 u32 l2p_control; /* L2pControlField */ 369 u32 l2p_duration; /* L2pDurationField */ 370 u32 l2p_mhvalid; /* L2pMhValidBits */ 371 u32 l2p_addr_match; /* L2pAddrMatchStat */ 372 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 373 * (LMPM_PMG_SEL) */ 374 u32 u_timestamp; /* indicate when the date and time of the 375 * compilation */ 376 u32 flow_handler; /* FH read/write pointers, RX credit */ 377 } __packed /* LOG_ERROR_TABLE_API_S_VER_1 */; 378 379 struct iwl_error_event_table { 380 u32 valid; /* (nonzero) valid, (0) log is empty */ 381 u32 error_id; /* type of error */ 382 u32 trm_hw_status0; /* TRM HW status */ 383 u32 trm_hw_status1; /* TRM HW status */ 384 u32 blink2; /* branch link */ 385 u32 ilink1; /* interrupt link */ 386 u32 ilink2; /* interrupt link */ 387 u32 data1; /* error-specific data */ 388 u32 data2; /* error-specific data */ 389 u32 data3; /* error-specific data */ 390 u32 bcon_time; /* beacon timer */ 391 u32 tsf_low; /* network timestamp function timer */ 392 u32 tsf_hi; /* network timestamp function timer */ 393 u32 gp1; /* GP1 timer register */ 394 u32 gp2; /* GP2 timer register */ 395 u32 fw_rev_type; /* firmware revision type */ 396 u32 major; /* uCode version major */ 397 u32 minor; /* uCode version minor */ 398 u32 hw_ver; /* HW Silicon version */ 399 u32 brd_ver; /* HW board version */ 400 u32 log_pc; /* log program counter */ 401 u32 frame_ptr; /* frame pointer */ 402 u32 stack_ptr; /* stack pointer */ 403 u32 hcmd; /* last host command header */ 404 u32 isr0; /* isr status register LMPM_NIC_ISR0: 405 * rxtx_flag */ 406 u32 isr1; /* isr status register LMPM_NIC_ISR1: 407 * host_flag */ 408 u32 isr2; /* isr status register LMPM_NIC_ISR2: 409 * enc_flag */ 410 u32 isr3; /* isr status register LMPM_NIC_ISR3: 411 * time_flag */ 412 u32 isr4; /* isr status register LMPM_NIC_ISR4: 413 * wico interrupt */ 414 u32 last_cmd_id; /* last HCMD id handled by the firmware */ 415 u32 wait_event; /* wait event() caller address */ 416 u32 l2p_control; /* L2pControlField */ 417 u32 l2p_duration; /* L2pDurationField */ 418 u32 l2p_mhvalid; /* L2pMhValidBits */ 419 u32 l2p_addr_match; /* L2pAddrMatchStat */ 420 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 421 * (LMPM_PMG_SEL) */ 422 u32 u_timestamp; /* indicate when the date and time of the 423 * compilation */ 424 u32 flow_handler; /* FH read/write pointers, RX credit */ 425 } __packed /* LOG_ERROR_TABLE_API_S_VER_3 */; 426 427 /* 428 * UMAC error struct - relevant starting from family 8000 chip. 429 * Note: This structure is read from the device with IO accesses, 430 * and the reading already does the endian conversion. As it is 431 * read with u32-sized accesses, any members with a different size 432 * need to be ordered correctly though! 433 */ 434 struct iwl_umac_error_event_table { 435 u32 valid; /* (nonzero) valid, (0) log is empty */ 436 u32 error_id; /* type of error */ 437 u32 blink1; /* branch link */ 438 u32 blink2; /* branch link */ 439 u32 ilink1; /* interrupt link */ 440 u32 ilink2; /* interrupt link */ 441 u32 data1; /* error-specific data */ 442 u32 data2; /* error-specific data */ 443 u32 data3; /* error-specific data */ 444 u32 umac_major; 445 u32 umac_minor; 446 u32 frame_pointer; /* core register 27*/ 447 u32 stack_pointer; /* core register 28 */ 448 u32 cmd_header; /* latest host cmd sent to UMAC */ 449 u32 nic_isr_pref; /* ISR status register */ 450 } __packed; 451 452 #define ERROR_START_OFFSET (1 * sizeof(u32)) 453 #define ERROR_ELEM_SIZE (7 * sizeof(u32)) 454 455 static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm) 456 { 457 struct iwl_trans *trans = mvm->trans; 458 struct iwl_umac_error_event_table table; 459 u32 base; 460 461 base = mvm->umac_error_event_table; 462 463 if (base < 0x800000) { 464 IWL_ERR(mvm, 465 "Not valid error log pointer 0x%08X for %s uCode\n", 466 base, 467 (mvm->cur_ucode == IWL_UCODE_INIT) 468 ? "Init" : "RT"); 469 return; 470 } 471 472 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 473 474 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 475 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 476 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 477 mvm->status, table.valid); 478 } 479 480 IWL_ERR(mvm, "0x%08X | %s\n", table.error_id, 481 desc_lookup(table.error_id)); 482 IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1); 483 IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2); 484 IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1); 485 IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2); 486 IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1); 487 IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2); 488 IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3); 489 IWL_ERR(mvm, "0x%08X | umac major\n", table.umac_major); 490 IWL_ERR(mvm, "0x%08X | umac minor\n", table.umac_minor); 491 IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer); 492 IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer); 493 IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header); 494 IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref); 495 } 496 497 static void iwl_mvm_dump_lmac_error_log(struct iwl_mvm *mvm, u32 base) 498 { 499 struct iwl_trans *trans = mvm->trans; 500 struct iwl_error_event_table table; 501 u32 val; 502 503 if (mvm->cur_ucode == IWL_UCODE_INIT) { 504 if (!base) 505 base = mvm->fw->init_errlog_ptr; 506 } else { 507 if (!base) 508 base = mvm->fw->inst_errlog_ptr; 509 } 510 511 if (base < 0x400000) { 512 IWL_ERR(mvm, 513 "Not valid error log pointer 0x%08X for %s uCode\n", 514 base, 515 (mvm->cur_ucode == IWL_UCODE_INIT) 516 ? "Init" : "RT"); 517 return; 518 } 519 520 /* check if there is a HW error */ 521 val = iwl_trans_read_mem32(trans, base); 522 if (((val & ~0xf) == 0xa5a5a5a0) || ((val & ~0xf) == 0x5a5a5a50)) { 523 int err; 524 525 IWL_ERR(trans, "HW error, resetting before reading\n"); 526 527 /* reset the device */ 528 iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); 529 usleep_range(5000, 6000); 530 531 /* set INIT_DONE flag */ 532 iwl_set_bit(trans, CSR_GP_CNTRL, 533 CSR_GP_CNTRL_REG_FLAG_INIT_DONE); 534 535 /* and wait for clock stabilization */ 536 if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) 537 udelay(2); 538 539 err = iwl_poll_bit(trans, CSR_GP_CNTRL, 540 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 541 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 542 25000); 543 if (err < 0) { 544 IWL_DEBUG_INFO(trans, 545 "Failed to reset the card for the dump\n"); 546 return; 547 } 548 } 549 550 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 551 552 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 553 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 554 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 555 mvm->status, table.valid); 556 } 557 558 /* Do not change this output - scripts rely on it */ 559 560 IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version); 561 562 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, 563 table.data1, table.data2, table.data3, 564 table.blink2, table.ilink1, 565 table.ilink2, table.bcon_time, table.gp1, 566 table.gp2, table.fw_rev_type, table.major, 567 table.minor, table.hw_ver, table.brd_ver); 568 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, 569 desc_lookup(table.error_id)); 570 IWL_ERR(mvm, "0x%08X | trm_hw_status0\n", table.trm_hw_status0); 571 IWL_ERR(mvm, "0x%08X | trm_hw_status1\n", table.trm_hw_status1); 572 IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2); 573 IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1); 574 IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2); 575 IWL_ERR(mvm, "0x%08X | data1\n", table.data1); 576 IWL_ERR(mvm, "0x%08X | data2\n", table.data2); 577 IWL_ERR(mvm, "0x%08X | data3\n", table.data3); 578 IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time); 579 IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low); 580 IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi); 581 IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1); 582 IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2); 583 IWL_ERR(mvm, "0x%08X | uCode revision type\n", table.fw_rev_type); 584 IWL_ERR(mvm, "0x%08X | uCode version major\n", table.major); 585 IWL_ERR(mvm, "0x%08X | uCode version minor\n", table.minor); 586 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); 587 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); 588 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); 589 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); 590 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); 591 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); 592 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); 593 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); 594 IWL_ERR(mvm, "0x%08X | last cmd Id\n", table.last_cmd_id); 595 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); 596 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); 597 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); 598 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); 599 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); 600 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); 601 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); 602 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); 603 } 604 605 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) 606 { 607 iwl_mvm_dump_lmac_error_log(mvm, mvm->error_event_table[0]); 608 609 if (mvm->error_event_table[1]) 610 iwl_mvm_dump_lmac_error_log(mvm, mvm->error_event_table[1]); 611 612 if (mvm->support_umac_log) 613 iwl_mvm_dump_umac_error_log(mvm); 614 } 615 616 int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, u8 minq, u8 maxq) 617 { 618 int i; 619 620 lockdep_assert_held(&mvm->queue_info_lock); 621 622 /* This should not be hit with new TX path */ 623 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 624 return -ENOSPC; 625 626 /* Start by looking for a free queue */ 627 for (i = minq; i <= maxq; i++) 628 if (mvm->queue_info[i].hw_queue_refcount == 0 && 629 mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 630 return i; 631 632 /* 633 * If no free queue found - settle for an inactive one to reconfigure 634 * Make sure that the inactive queue either already belongs to this STA, 635 * or that if it belongs to another one - it isn't the reserved queue 636 */ 637 for (i = minq; i <= maxq; i++) 638 if (mvm->queue_info[i].status == IWL_MVM_QUEUE_INACTIVE && 639 (sta_id == mvm->queue_info[i].ra_sta_id || 640 !mvm->queue_info[i].reserved)) 641 return i; 642 643 return -ENOSPC; 644 } 645 646 int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id, 647 int tid, int frame_limit, u16 ssn) 648 { 649 struct iwl_scd_txq_cfg_cmd cmd = { 650 .scd_queue = queue, 651 .action = SCD_CFG_ENABLE_QUEUE, 652 .window = frame_limit, 653 .sta_id = sta_id, 654 .ssn = cpu_to_le16(ssn), 655 .tx_fifo = fifo, 656 .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 657 queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 658 .tid = tid, 659 }; 660 int ret; 661 662 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 663 return -EINVAL; 664 665 spin_lock_bh(&mvm->queue_info_lock); 666 if (WARN(mvm->queue_info[queue].hw_queue_refcount == 0, 667 "Trying to reconfig unallocated queue %d\n", queue)) { 668 spin_unlock_bh(&mvm->queue_info_lock); 669 return -ENXIO; 670 } 671 spin_unlock_bh(&mvm->queue_info_lock); 672 673 IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 674 675 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 676 WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 677 queue, fifo, ret); 678 679 return ret; 680 } 681 682 static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue, 683 int mac80211_queue, u8 sta_id, u8 tid) 684 { 685 bool enable_queue = true; 686 687 spin_lock_bh(&mvm->queue_info_lock); 688 689 /* Make sure this TID isn't already enabled */ 690 if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) { 691 spin_unlock_bh(&mvm->queue_info_lock); 692 IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 693 queue, tid); 694 return false; 695 } 696 697 /* Update mappings and refcounts */ 698 if (mvm->queue_info[queue].hw_queue_refcount > 0) 699 enable_queue = false; 700 701 if (mac80211_queue != IEEE80211_INVAL_HW_QUEUE) { 702 WARN(mac80211_queue >= 703 BITS_PER_BYTE * sizeof(mvm->hw_queue_to_mac80211[0]), 704 "cannot track mac80211 queue %d (queue %d, sta %d, tid %d)\n", 705 mac80211_queue, queue, sta_id, tid); 706 mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue); 707 } 708 709 mvm->queue_info[queue].hw_queue_refcount++; 710 mvm->queue_info[queue].tid_bitmap |= BIT(tid); 711 mvm->queue_info[queue].ra_sta_id = sta_id; 712 713 if (enable_queue) { 714 if (tid != IWL_MAX_TID_COUNT) 715 mvm->queue_info[queue].mac80211_ac = 716 tid_to_mac80211_ac[tid]; 717 else 718 mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 719 720 mvm->queue_info[queue].txq_tid = tid; 721 } 722 723 IWL_DEBUG_TX_QUEUES(mvm, 724 "Enabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 725 queue, mvm->queue_info[queue].hw_queue_refcount, 726 mvm->hw_queue_to_mac80211[queue]); 727 728 spin_unlock_bh(&mvm->queue_info_lock); 729 730 return enable_queue; 731 } 732 733 int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, int mac80211_queue, 734 u8 sta_id, u8 tid, unsigned int timeout) 735 { 736 struct iwl_tx_queue_cfg_cmd cmd = { 737 .flags = cpu_to_le16(TX_QUEUE_CFG_ENABLE_QUEUE), 738 .sta_id = sta_id, 739 .tid = tid, 740 }; 741 int queue; 742 743 if (cmd.tid == IWL_MAX_TID_COUNT) 744 cmd.tid = IWL_MGMT_TID; 745 queue = iwl_trans_txq_alloc(mvm->trans, (void *)&cmd, 746 SCD_QUEUE_CFG, timeout); 747 748 if (queue < 0) { 749 IWL_DEBUG_TX_QUEUES(mvm, 750 "Failed allocating TXQ for sta %d tid %d, ret: %d\n", 751 sta_id, tid, queue); 752 return queue; 753 } 754 755 IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta %d tid %d\n", 756 queue, sta_id, tid); 757 758 mvm->hw_queue_to_mac80211[queue] |= BIT(mac80211_queue); 759 IWL_DEBUG_TX_QUEUES(mvm, 760 "Enabling TXQ #%d (mac80211 map:0x%x)\n", 761 queue, mvm->hw_queue_to_mac80211[queue]); 762 763 return queue; 764 } 765 766 bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 767 u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg, 768 unsigned int wdg_timeout) 769 { 770 struct iwl_scd_txq_cfg_cmd cmd = { 771 .scd_queue = queue, 772 .action = SCD_CFG_ENABLE_QUEUE, 773 .window = cfg->frame_limit, 774 .sta_id = cfg->sta_id, 775 .ssn = cpu_to_le16(ssn), 776 .tx_fifo = cfg->fifo, 777 .aggregate = cfg->aggregate, 778 .tid = cfg->tid, 779 }; 780 bool inc_ssn; 781 782 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 783 return false; 784 785 /* Send the enabling command if we need to */ 786 if (!iwl_mvm_update_txq_mapping(mvm, queue, mac80211_queue, 787 cfg->sta_id, cfg->tid)) 788 return false; 789 790 inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 791 NULL, wdg_timeout); 792 if (inc_ssn) 793 le16_add_cpu(&cmd.ssn, 1); 794 795 WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 796 "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 797 798 return inc_ssn; 799 } 800 801 int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 802 u8 tid, u8 flags) 803 { 804 struct iwl_scd_txq_cfg_cmd cmd = { 805 .scd_queue = queue, 806 .action = SCD_CFG_DISABLE_QUEUE, 807 }; 808 bool remove_mac_queue = true; 809 int ret; 810 811 if (iwl_mvm_has_new_tx_api(mvm)) { 812 spin_lock_bh(&mvm->queue_info_lock); 813 mvm->hw_queue_to_mac80211[queue] &= ~BIT(mac80211_queue); 814 spin_unlock_bh(&mvm->queue_info_lock); 815 816 iwl_trans_txq_free(mvm->trans, queue); 817 818 return 0; 819 } 820 821 spin_lock_bh(&mvm->queue_info_lock); 822 823 if (WARN_ON(mvm->queue_info[queue].hw_queue_refcount == 0)) { 824 spin_unlock_bh(&mvm->queue_info_lock); 825 return 0; 826 } 827 828 mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 829 830 /* 831 * If there is another TID with the same AC - don't remove the MAC queue 832 * from the mapping 833 */ 834 if (tid < IWL_MAX_TID_COUNT) { 835 unsigned long tid_bitmap = 836 mvm->queue_info[queue].tid_bitmap; 837 int ac = tid_to_mac80211_ac[tid]; 838 int i; 839 840 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT) { 841 if (tid_to_mac80211_ac[i] == ac) 842 remove_mac_queue = false; 843 } 844 } 845 846 if (remove_mac_queue) 847 mvm->hw_queue_to_mac80211[queue] &= 848 ~BIT(mac80211_queue); 849 mvm->queue_info[queue].hw_queue_refcount--; 850 851 cmd.action = mvm->queue_info[queue].hw_queue_refcount ? 852 SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 853 if (cmd.action == SCD_CFG_DISABLE_QUEUE) 854 mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 855 856 IWL_DEBUG_TX_QUEUES(mvm, 857 "Disabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 858 queue, 859 mvm->queue_info[queue].hw_queue_refcount, 860 mvm->hw_queue_to_mac80211[queue]); 861 862 /* If the queue is still enabled - nothing left to do in this func */ 863 if (cmd.action == SCD_CFG_ENABLE_QUEUE) { 864 spin_unlock_bh(&mvm->queue_info_lock); 865 return 0; 866 } 867 868 cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 869 cmd.tid = mvm->queue_info[queue].txq_tid; 870 871 /* Make sure queue info is correct even though we overwrite it */ 872 WARN(mvm->queue_info[queue].hw_queue_refcount || 873 mvm->queue_info[queue].tid_bitmap || 874 mvm->hw_queue_to_mac80211[queue], 875 "TXQ #%d info out-of-sync - refcount=%d, mac map=0x%x, tid=0x%x\n", 876 queue, mvm->queue_info[queue].hw_queue_refcount, 877 mvm->hw_queue_to_mac80211[queue], 878 mvm->queue_info[queue].tid_bitmap); 879 880 /* If we are here - the queue is freed and we can zero out these vals */ 881 mvm->queue_info[queue].hw_queue_refcount = 0; 882 mvm->queue_info[queue].tid_bitmap = 0; 883 mvm->hw_queue_to_mac80211[queue] = 0; 884 885 /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 886 mvm->queue_info[queue].reserved = false; 887 888 spin_unlock_bh(&mvm->queue_info_lock); 889 890 iwl_trans_txq_disable(mvm->trans, queue, false); 891 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 892 sizeof(struct iwl_scd_txq_cfg_cmd), &cmd); 893 894 if (ret) 895 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 896 queue, ret); 897 return ret; 898 } 899 900 /** 901 * iwl_mvm_send_lq_cmd() - Send link quality command 902 * @init: This command is sent as part of station initialization right 903 * after station has been added. 904 * 905 * The link quality command is sent as the last step of station creation. 906 * This is the special case in which init is set and we call a callback in 907 * this case to clear the state indicating that station creation is in 908 * progress. 909 */ 910 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init) 911 { 912 struct iwl_host_cmd cmd = { 913 .id = LQ_CMD, 914 .len = { sizeof(struct iwl_lq_cmd), }, 915 .flags = init ? 0 : CMD_ASYNC, 916 .data = { lq, }, 917 }; 918 919 if (WARN_ON(lq->sta_id == IWL_MVM_INVALID_STA)) 920 return -EINVAL; 921 922 return iwl_mvm_send_cmd(mvm, &cmd); 923 } 924 925 /** 926 * iwl_mvm_update_smps - Get a request to change the SMPS mode 927 * @req_type: The part of the driver who call for a change. 928 * @smps_requests: The request to change the SMPS mode. 929 * 930 * Get a requst to change the SMPS mode, 931 * and change it according to all other requests in the driver. 932 */ 933 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 934 enum iwl_mvm_smps_type_request req_type, 935 enum ieee80211_smps_mode smps_request) 936 { 937 struct iwl_mvm_vif *mvmvif; 938 enum ieee80211_smps_mode smps_mode; 939 int i; 940 941 lockdep_assert_held(&mvm->mutex); 942 943 /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ 944 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 945 return; 946 947 if (vif->type == NL80211_IFTYPE_AP) 948 smps_mode = IEEE80211_SMPS_OFF; 949 else 950 smps_mode = IEEE80211_SMPS_AUTOMATIC; 951 952 mvmvif = iwl_mvm_vif_from_mac80211(vif); 953 mvmvif->smps_requests[req_type] = smps_request; 954 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 955 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { 956 smps_mode = IEEE80211_SMPS_STATIC; 957 break; 958 } 959 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 960 smps_mode = IEEE80211_SMPS_DYNAMIC; 961 } 962 963 ieee80211_request_smps(vif, smps_mode); 964 } 965 966 int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear) 967 { 968 struct iwl_statistics_cmd scmd = { 969 .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0, 970 }; 971 struct iwl_host_cmd cmd = { 972 .id = STATISTICS_CMD, 973 .len[0] = sizeof(scmd), 974 .data[0] = &scmd, 975 .flags = CMD_WANT_SKB, 976 }; 977 int ret; 978 979 ret = iwl_mvm_send_cmd(mvm, &cmd); 980 if (ret) 981 return ret; 982 983 iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt); 984 iwl_free_resp(&cmd); 985 986 if (clear) 987 iwl_mvm_accu_radio_stats(mvm); 988 989 return 0; 990 } 991 992 void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm) 993 { 994 mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time; 995 mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time; 996 mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf; 997 mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan; 998 } 999 1000 static void iwl_mvm_diversity_iter(void *_data, u8 *mac, 1001 struct ieee80211_vif *vif) 1002 { 1003 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1004 bool *result = _data; 1005 int i; 1006 1007 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 1008 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || 1009 mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 1010 *result = false; 1011 } 1012 } 1013 1014 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) 1015 { 1016 bool result = true; 1017 1018 lockdep_assert_held(&mvm->mutex); 1019 1020 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 1021 return false; 1022 1023 if (mvm->cfg->rx_with_siso_diversity) 1024 return false; 1025 1026 ieee80211_iterate_active_interfaces_atomic( 1027 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1028 iwl_mvm_diversity_iter, &result); 1029 1030 return result; 1031 } 1032 1033 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1034 bool prev) 1035 { 1036 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1037 int res; 1038 1039 lockdep_assert_held(&mvm->mutex); 1040 1041 if (iwl_mvm_vif_low_latency(mvmvif) == prev) 1042 return 0; 1043 1044 res = iwl_mvm_update_quotas(mvm, false, NULL); 1045 if (res) 1046 return res; 1047 1048 iwl_mvm_bt_coex_vif_change(mvm); 1049 1050 return iwl_mvm_power_update_mac(mvm); 1051 } 1052 1053 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) 1054 { 1055 bool *result = _data; 1056 1057 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) 1058 *result = true; 1059 } 1060 1061 bool iwl_mvm_low_latency(struct iwl_mvm *mvm) 1062 { 1063 bool result = false; 1064 1065 ieee80211_iterate_active_interfaces_atomic( 1066 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1067 iwl_mvm_ll_iter, &result); 1068 1069 return result; 1070 } 1071 1072 struct iwl_bss_iter_data { 1073 struct ieee80211_vif *vif; 1074 bool error; 1075 }; 1076 1077 static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac, 1078 struct ieee80211_vif *vif) 1079 { 1080 struct iwl_bss_iter_data *data = _data; 1081 1082 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 1083 return; 1084 1085 if (data->vif) { 1086 data->error = true; 1087 return; 1088 } 1089 1090 data->vif = vif; 1091 } 1092 1093 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm) 1094 { 1095 struct iwl_bss_iter_data bss_iter_data = {}; 1096 1097 ieee80211_iterate_active_interfaces_atomic( 1098 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1099 iwl_mvm_bss_iface_iterator, &bss_iter_data); 1100 1101 if (bss_iter_data.error) { 1102 IWL_ERR(mvm, "More than one managed interface active!\n"); 1103 return ERR_PTR(-EINVAL); 1104 } 1105 1106 return bss_iter_data.vif; 1107 } 1108 1109 struct iwl_sta_iter_data { 1110 bool assoc; 1111 }; 1112 1113 static void iwl_mvm_sta_iface_iterator(void *_data, u8 *mac, 1114 struct ieee80211_vif *vif) 1115 { 1116 struct iwl_sta_iter_data *data = _data; 1117 1118 if (vif->type != NL80211_IFTYPE_STATION) 1119 return; 1120 1121 if (vif->bss_conf.assoc) 1122 data->assoc = true; 1123 } 1124 1125 bool iwl_mvm_is_vif_assoc(struct iwl_mvm *mvm) 1126 { 1127 struct iwl_sta_iter_data data = { 1128 .assoc = false, 1129 }; 1130 1131 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 1132 IEEE80211_IFACE_ITER_NORMAL, 1133 iwl_mvm_sta_iface_iterator, 1134 &data); 1135 return data.assoc; 1136 } 1137 1138 unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm, 1139 struct ieee80211_vif *vif, 1140 bool tdls, bool cmd_q) 1141 { 1142 struct iwl_fw_dbg_trigger_tlv *trigger; 1143 struct iwl_fw_dbg_trigger_txq_timer *txq_timer; 1144 unsigned int default_timeout = 1145 cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout; 1146 1147 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) 1148 return iwlmvm_mod_params.tfd_q_hang_detect ? 1149 default_timeout : IWL_WATCHDOG_DISABLED; 1150 1151 trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS); 1152 txq_timer = (void *)trigger->data; 1153 1154 if (tdls) 1155 return le32_to_cpu(txq_timer->tdls); 1156 1157 if (cmd_q) 1158 return le32_to_cpu(txq_timer->command_queue); 1159 1160 if (WARN_ON(!vif)) 1161 return default_timeout; 1162 1163 switch (ieee80211_vif_type_p2p(vif)) { 1164 case NL80211_IFTYPE_ADHOC: 1165 return le32_to_cpu(txq_timer->ibss); 1166 case NL80211_IFTYPE_STATION: 1167 return le32_to_cpu(txq_timer->bss); 1168 case NL80211_IFTYPE_AP: 1169 return le32_to_cpu(txq_timer->softap); 1170 case NL80211_IFTYPE_P2P_CLIENT: 1171 return le32_to_cpu(txq_timer->p2p_client); 1172 case NL80211_IFTYPE_P2P_GO: 1173 return le32_to_cpu(txq_timer->p2p_go); 1174 case NL80211_IFTYPE_P2P_DEVICE: 1175 return le32_to_cpu(txq_timer->p2p_device); 1176 default: 1177 WARN_ON(1); 1178 return mvm->cfg->base_params->wd_timeout; 1179 } 1180 } 1181 1182 void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1183 const char *errmsg) 1184 { 1185 struct iwl_fw_dbg_trigger_tlv *trig; 1186 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 1187 1188 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 1189 goto out; 1190 1191 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 1192 trig_mlme = (void *)trig->data; 1193 if (!iwl_fw_dbg_trigger_check_stop(mvm, 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_mvm_fw_dbg_collect_trig(mvm, 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