1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 10 * Copyright (C) 2015 Intel Deutschland GmbH 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 24 * USA 25 * 26 * The full GNU General Public License is included in this distribution 27 * in the file called COPYING. 28 * 29 * Contact Information: 30 * Intel Linux Wireless <linuxwifi@intel.com> 31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 32 * 33 * BSD LICENSE 34 * 35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 36 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 37 * All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 43 * * Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * * Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in 47 * the documentation and/or other materials provided with the 48 * distribution. 49 * * Neither the name Intel Corporation nor the names of its 50 * contributors may be used to endorse or promote products derived 51 * from this software without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 64 * 65 *****************************************************************************/ 66 #include <net/mac80211.h> 67 68 #include "iwl-debug.h" 69 #include "iwl-io.h" 70 #include "iwl-prph.h" 71 #include "fw-dbg.h" 72 #include "mvm.h" 73 #include "fw-api-rs.h" 74 75 /* 76 * Will return 0 even if the cmd failed when RFKILL is asserted unless 77 * CMD_WANT_SKB is set in cmd->flags. 78 */ 79 int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) 80 { 81 int ret; 82 83 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 84 if (WARN_ON(mvm->d3_test_active)) 85 return -EIO; 86 #endif 87 88 /* 89 * Synchronous commands from this op-mode must hold 90 * the mutex, this ensures we don't try to send two 91 * (or more) synchronous commands at a time. 92 */ 93 if (!(cmd->flags & CMD_ASYNC)) { 94 lockdep_assert_held(&mvm->mutex); 95 if (!(cmd->flags & CMD_SEND_IN_IDLE)) 96 iwl_mvm_ref(mvm, IWL_MVM_REF_SENDING_CMD); 97 } 98 99 ret = iwl_trans_send_cmd(mvm->trans, cmd); 100 101 if (!(cmd->flags & (CMD_ASYNC | CMD_SEND_IN_IDLE))) 102 iwl_mvm_unref(mvm, IWL_MVM_REF_SENDING_CMD); 103 104 /* 105 * If the caller wants the SKB, then don't hide any problems, the 106 * caller might access the response buffer which will be NULL if 107 * the command failed. 108 */ 109 if (cmd->flags & CMD_WANT_SKB) 110 return ret; 111 112 /* Silently ignore failures if RFKILL is asserted */ 113 if (!ret || ret == -ERFKILL) 114 return 0; 115 return ret; 116 } 117 118 int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id, 119 u32 flags, u16 len, const void *data) 120 { 121 struct iwl_host_cmd cmd = { 122 .id = id, 123 .len = { len, }, 124 .data = { data, }, 125 .flags = flags, 126 }; 127 128 return iwl_mvm_send_cmd(mvm, &cmd); 129 } 130 131 /* 132 * We assume that the caller set the status to the success value 133 */ 134 int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, 135 u32 *status) 136 { 137 struct iwl_rx_packet *pkt; 138 struct iwl_cmd_response *resp; 139 int ret, resp_len; 140 141 lockdep_assert_held(&mvm->mutex); 142 143 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 144 if (WARN_ON(mvm->d3_test_active)) 145 return -EIO; 146 #endif 147 148 /* 149 * Only synchronous commands can wait for status, 150 * we use WANT_SKB so the caller can't. 151 */ 152 if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), 153 "cmd flags %x", cmd->flags)) 154 return -EINVAL; 155 156 cmd->flags |= CMD_WANT_SKB; 157 158 ret = iwl_trans_send_cmd(mvm->trans, cmd); 159 if (ret == -ERFKILL) { 160 /* 161 * The command failed because of RFKILL, don't update 162 * the status, leave it as success and return 0. 163 */ 164 return 0; 165 } else if (ret) { 166 return ret; 167 } 168 169 pkt = cmd->resp_pkt; 170 /* Can happen if RFKILL is asserted */ 171 if (!pkt) { 172 ret = 0; 173 goto out_free_resp; 174 } 175 176 resp_len = iwl_rx_packet_payload_len(pkt); 177 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 178 ret = -EIO; 179 goto out_free_resp; 180 } 181 182 resp = (void *)pkt->data; 183 *status = le32_to_cpu(resp->status); 184 out_free_resp: 185 iwl_free_resp(cmd); 186 return ret; 187 } 188 189 /* 190 * We assume that the caller set the status to the sucess value 191 */ 192 int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id, u16 len, 193 const void *data, u32 *status) 194 { 195 struct iwl_host_cmd cmd = { 196 .id = id, 197 .len = { len, }, 198 .data = { data, }, 199 }; 200 201 return iwl_mvm_send_cmd_status(mvm, &cmd, status); 202 } 203 204 #define IWL_DECLARE_RATE_INFO(r) \ 205 [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP 206 207 /* 208 * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP 209 */ 210 static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = { 211 IWL_DECLARE_RATE_INFO(1), 212 IWL_DECLARE_RATE_INFO(2), 213 IWL_DECLARE_RATE_INFO(5), 214 IWL_DECLARE_RATE_INFO(11), 215 IWL_DECLARE_RATE_INFO(6), 216 IWL_DECLARE_RATE_INFO(9), 217 IWL_DECLARE_RATE_INFO(12), 218 IWL_DECLARE_RATE_INFO(18), 219 IWL_DECLARE_RATE_INFO(24), 220 IWL_DECLARE_RATE_INFO(36), 221 IWL_DECLARE_RATE_INFO(48), 222 IWL_DECLARE_RATE_INFO(54), 223 }; 224 225 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, 226 enum nl80211_band band) 227 { 228 int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; 229 int idx; 230 int band_offset = 0; 231 232 /* Legacy rate format, search for match in table */ 233 if (band == NL80211_BAND_5GHZ) 234 band_offset = IWL_FIRST_OFDM_RATE; 235 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) 236 if (fw_rate_idx_to_plcp[idx] == rate) 237 return idx - band_offset; 238 239 return -1; 240 } 241 242 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx) 243 { 244 /* Get PLCP rate for tx_cmd->rate_n_flags */ 245 return fw_rate_idx_to_plcp[rate_idx]; 246 } 247 248 void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 249 { 250 struct iwl_rx_packet *pkt = rxb_addr(rxb); 251 struct iwl_error_resp *err_resp = (void *)pkt->data; 252 253 IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", 254 le32_to_cpu(err_resp->error_type), err_resp->cmd_id); 255 IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", 256 le16_to_cpu(err_resp->bad_cmd_seq_num), 257 le32_to_cpu(err_resp->error_service)); 258 IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n", 259 le64_to_cpu(err_resp->timestamp)); 260 } 261 262 /* 263 * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h. 264 * The parameter should also be a combination of ANT_[ABC]. 265 */ 266 u8 first_antenna(u8 mask) 267 { 268 BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */ 269 if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */ 270 return BIT(0); 271 return BIT(ffs(mask) - 1); 272 } 273 274 /* 275 * Toggles between TX antennas to send the probe request on. 276 * Receives the bitmask of valid TX antennas and the *index* used 277 * for the last TX, and returns the next valid *index* to use. 278 * In order to set it in the tx_cmd, must do BIT(idx). 279 */ 280 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx) 281 { 282 u8 ind = last_idx; 283 int i; 284 285 for (i = 0; i < RATE_MCS_ANT_NUM; i++) { 286 ind = (ind + 1) % RATE_MCS_ANT_NUM; 287 if (valid & BIT(ind)) 288 return ind; 289 } 290 291 WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid); 292 return last_idx; 293 } 294 295 static const struct { 296 const char *name; 297 u8 num; 298 } advanced_lookup[] = { 299 { "NMI_INTERRUPT_WDG", 0x34 }, 300 { "SYSASSERT", 0x35 }, 301 { "UCODE_VERSION_MISMATCH", 0x37 }, 302 { "BAD_COMMAND", 0x38 }, 303 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, 304 { "FATAL_ERROR", 0x3D }, 305 { "NMI_TRM_HW_ERR", 0x46 }, 306 { "NMI_INTERRUPT_TRM", 0x4C }, 307 { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, 308 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, 309 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, 310 { "NMI_INTERRUPT_HOST", 0x66 }, 311 { "NMI_INTERRUPT_ACTION_PT", 0x7C }, 312 { "NMI_INTERRUPT_UNKNOWN", 0x84 }, 313 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, 314 { "ADVANCED_SYSASSERT", 0 }, 315 }; 316 317 static const char *desc_lookup(u32 num) 318 { 319 int i; 320 321 for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++) 322 if (advanced_lookup[i].num == num) 323 return advanced_lookup[i].name; 324 325 /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */ 326 return advanced_lookup[i].name; 327 } 328 329 /* 330 * Note: This structure is read from the device with IO accesses, 331 * and the reading already does the endian conversion. As it is 332 * read with u32-sized accesses, any members with a different size 333 * need to be ordered correctly though! 334 */ 335 struct iwl_error_event_table_v1 { 336 u32 valid; /* (nonzero) valid, (0) log is empty */ 337 u32 error_id; /* type of error */ 338 u32 pc; /* program counter */ 339 u32 blink1; /* branch link */ 340 u32 blink2; /* branch link */ 341 u32 ilink1; /* interrupt link */ 342 u32 ilink2; /* interrupt link */ 343 u32 data1; /* error-specific data */ 344 u32 data2; /* error-specific data */ 345 u32 data3; /* error-specific data */ 346 u32 bcon_time; /* beacon timer */ 347 u32 tsf_low; /* network timestamp function timer */ 348 u32 tsf_hi; /* network timestamp function timer */ 349 u32 gp1; /* GP1 timer register */ 350 u32 gp2; /* GP2 timer register */ 351 u32 gp3; /* GP3 timer register */ 352 u32 ucode_ver; /* uCode version */ 353 u32 hw_ver; /* HW Silicon version */ 354 u32 brd_ver; /* HW board version */ 355 u32 log_pc; /* log program counter */ 356 u32 frame_ptr; /* frame pointer */ 357 u32 stack_ptr; /* stack pointer */ 358 u32 hcmd; /* last host command header */ 359 u32 isr0; /* isr status register LMPM_NIC_ISR0: 360 * rxtx_flag */ 361 u32 isr1; /* isr status register LMPM_NIC_ISR1: 362 * host_flag */ 363 u32 isr2; /* isr status register LMPM_NIC_ISR2: 364 * enc_flag */ 365 u32 isr3; /* isr status register LMPM_NIC_ISR3: 366 * time_flag */ 367 u32 isr4; /* isr status register LMPM_NIC_ISR4: 368 * wico interrupt */ 369 u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */ 370 u32 wait_event; /* wait event() caller address */ 371 u32 l2p_control; /* L2pControlField */ 372 u32 l2p_duration; /* L2pDurationField */ 373 u32 l2p_mhvalid; /* L2pMhValidBits */ 374 u32 l2p_addr_match; /* L2pAddrMatchStat */ 375 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 376 * (LMPM_PMG_SEL) */ 377 u32 u_timestamp; /* indicate when the date and time of the 378 * compilation */ 379 u32 flow_handler; /* FH read/write pointers, RX credit */ 380 } __packed /* LOG_ERROR_TABLE_API_S_VER_1 */; 381 382 struct iwl_error_event_table { 383 u32 valid; /* (nonzero) valid, (0) log is empty */ 384 u32 error_id; /* type of error */ 385 u32 trm_hw_status0; /* TRM HW status */ 386 u32 trm_hw_status1; /* TRM HW status */ 387 u32 blink2; /* branch link */ 388 u32 ilink1; /* interrupt link */ 389 u32 ilink2; /* interrupt link */ 390 u32 data1; /* error-specific data */ 391 u32 data2; /* error-specific data */ 392 u32 data3; /* error-specific data */ 393 u32 bcon_time; /* beacon timer */ 394 u32 tsf_low; /* network timestamp function timer */ 395 u32 tsf_hi; /* network timestamp function timer */ 396 u32 gp1; /* GP1 timer register */ 397 u32 gp2; /* GP2 timer register */ 398 u32 fw_rev_type; /* firmware revision type */ 399 u32 major; /* uCode version major */ 400 u32 minor; /* uCode version minor */ 401 u32 hw_ver; /* HW Silicon version */ 402 u32 brd_ver; /* HW board version */ 403 u32 log_pc; /* log program counter */ 404 u32 frame_ptr; /* frame pointer */ 405 u32 stack_ptr; /* stack pointer */ 406 u32 hcmd; /* last host command header */ 407 u32 isr0; /* isr status register LMPM_NIC_ISR0: 408 * rxtx_flag */ 409 u32 isr1; /* isr status register LMPM_NIC_ISR1: 410 * host_flag */ 411 u32 isr2; /* isr status register LMPM_NIC_ISR2: 412 * enc_flag */ 413 u32 isr3; /* isr status register LMPM_NIC_ISR3: 414 * time_flag */ 415 u32 isr4; /* isr status register LMPM_NIC_ISR4: 416 * wico interrupt */ 417 u32 last_cmd_id; /* last HCMD id handled by the firmware */ 418 u32 wait_event; /* wait event() caller address */ 419 u32 l2p_control; /* L2pControlField */ 420 u32 l2p_duration; /* L2pDurationField */ 421 u32 l2p_mhvalid; /* L2pMhValidBits */ 422 u32 l2p_addr_match; /* L2pAddrMatchStat */ 423 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 424 * (LMPM_PMG_SEL) */ 425 u32 u_timestamp; /* indicate when the date and time of the 426 * compilation */ 427 u32 flow_handler; /* FH read/write pointers, RX credit */ 428 } __packed /* LOG_ERROR_TABLE_API_S_VER_3 */; 429 430 /* 431 * UMAC error struct - relevant starting from family 8000 chip. 432 * Note: This structure is read from the device with IO accesses, 433 * and the reading already does the endian conversion. As it is 434 * read with u32-sized accesses, any members with a different size 435 * need to be ordered correctly though! 436 */ 437 struct iwl_umac_error_event_table { 438 u32 valid; /* (nonzero) valid, (0) log is empty */ 439 u32 error_id; /* type of error */ 440 u32 blink1; /* branch link */ 441 u32 blink2; /* branch link */ 442 u32 ilink1; /* interrupt link */ 443 u32 ilink2; /* interrupt link */ 444 u32 data1; /* error-specific data */ 445 u32 data2; /* error-specific data */ 446 u32 data3; /* error-specific data */ 447 u32 umac_major; 448 u32 umac_minor; 449 u32 frame_pointer; /* core register 27*/ 450 u32 stack_pointer; /* core register 28 */ 451 u32 cmd_header; /* latest host cmd sent to UMAC */ 452 u32 nic_isr_pref; /* ISR status register */ 453 } __packed; 454 455 #define ERROR_START_OFFSET (1 * sizeof(u32)) 456 #define ERROR_ELEM_SIZE (7 * sizeof(u32)) 457 458 static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm) 459 { 460 struct iwl_trans *trans = mvm->trans; 461 struct iwl_umac_error_event_table table; 462 u32 base; 463 464 base = mvm->umac_error_event_table; 465 466 if (base < 0x800000) { 467 IWL_ERR(mvm, 468 "Not valid error log pointer 0x%08X for %s uCode\n", 469 base, 470 (mvm->cur_ucode == IWL_UCODE_INIT) 471 ? "Init" : "RT"); 472 return; 473 } 474 475 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 476 477 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 478 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 479 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 480 mvm->status, table.valid); 481 } 482 483 IWL_ERR(mvm, "0x%08X | %s\n", table.error_id, 484 desc_lookup(table.error_id)); 485 IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1); 486 IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2); 487 IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1); 488 IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2); 489 IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1); 490 IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2); 491 IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3); 492 IWL_ERR(mvm, "0x%08X | umac major\n", table.umac_major); 493 IWL_ERR(mvm, "0x%08X | umac minor\n", table.umac_minor); 494 IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer); 495 IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer); 496 IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header); 497 IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref); 498 } 499 500 static void iwl_mvm_dump_lmac_error_log(struct iwl_mvm *mvm, u32 base) 501 { 502 struct iwl_trans *trans = mvm->trans; 503 struct iwl_error_event_table table; 504 505 if (mvm->cur_ucode == IWL_UCODE_INIT) { 506 if (!base) 507 base = mvm->fw->init_errlog_ptr; 508 } else { 509 if (!base) 510 base = mvm->fw->inst_errlog_ptr; 511 } 512 513 if (base < 0x400000) { 514 IWL_ERR(mvm, 515 "Not valid error log pointer 0x%08X for %s uCode\n", 516 base, 517 (mvm->cur_ucode == IWL_UCODE_INIT) 518 ? "Init" : "RT"); 519 return; 520 } 521 522 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 523 524 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 525 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 526 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 527 mvm->status, table.valid); 528 } 529 530 /* Do not change this output - scripts rely on it */ 531 532 IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version); 533 534 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, 535 table.data1, table.data2, table.data3, 536 table.blink2, table.ilink1, 537 table.ilink2, table.bcon_time, table.gp1, 538 table.gp2, table.fw_rev_type, table.major, 539 table.minor, table.hw_ver, table.brd_ver); 540 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, 541 desc_lookup(table.error_id)); 542 IWL_ERR(mvm, "0x%08X | trm_hw_status0\n", table.trm_hw_status0); 543 IWL_ERR(mvm, "0x%08X | trm_hw_status1\n", table.trm_hw_status1); 544 IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2); 545 IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1); 546 IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2); 547 IWL_ERR(mvm, "0x%08X | data1\n", table.data1); 548 IWL_ERR(mvm, "0x%08X | data2\n", table.data2); 549 IWL_ERR(mvm, "0x%08X | data3\n", table.data3); 550 IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time); 551 IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low); 552 IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi); 553 IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1); 554 IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2); 555 IWL_ERR(mvm, "0x%08X | uCode revision type\n", table.fw_rev_type); 556 IWL_ERR(mvm, "0x%08X | uCode version major\n", table.major); 557 IWL_ERR(mvm, "0x%08X | uCode version minor\n", table.minor); 558 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); 559 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); 560 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); 561 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); 562 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); 563 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); 564 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); 565 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); 566 IWL_ERR(mvm, "0x%08X | last cmd Id\n", table.last_cmd_id); 567 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); 568 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); 569 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); 570 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); 571 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); 572 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); 573 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); 574 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); 575 } 576 577 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) 578 { 579 iwl_mvm_dump_lmac_error_log(mvm, mvm->error_event_table[0]); 580 581 if (mvm->error_event_table[1]) 582 iwl_mvm_dump_lmac_error_log(mvm, mvm->error_event_table[1]); 583 584 if (mvm->support_umac_log) 585 iwl_mvm_dump_umac_error_log(mvm); 586 } 587 588 int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, u8 minq, u8 maxq) 589 { 590 int i; 591 592 lockdep_assert_held(&mvm->queue_info_lock); 593 594 /* Start by looking for a free queue */ 595 for (i = minq; i <= maxq; i++) 596 if (mvm->queue_info[i].hw_queue_refcount == 0 && 597 mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE) 598 return i; 599 600 /* 601 * If no free queue found - settle for an inactive one to reconfigure 602 * Make sure that the inactive queue either already belongs to this STA, 603 * or that if it belongs to another one - it isn't the reserved queue 604 */ 605 for (i = minq; i <= maxq; i++) 606 if (mvm->queue_info[i].status == IWL_MVM_QUEUE_INACTIVE && 607 (sta_id == mvm->queue_info[i].ra_sta_id || 608 !mvm->queue_info[i].reserved)) 609 return i; 610 611 return -ENOSPC; 612 } 613 614 int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id, 615 int tid, int frame_limit, u16 ssn) 616 { 617 struct iwl_scd_txq_cfg_cmd cmd = { 618 .scd_queue = queue, 619 .action = SCD_CFG_ENABLE_QUEUE, 620 .window = frame_limit, 621 .sta_id = sta_id, 622 .ssn = cpu_to_le16(ssn), 623 .tx_fifo = fifo, 624 .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE || 625 queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE), 626 .tid = tid, 627 }; 628 int ret; 629 630 spin_lock_bh(&mvm->queue_info_lock); 631 if (WARN(mvm->queue_info[queue].hw_queue_refcount == 0, 632 "Trying to reconfig unallocated queue %d\n", queue)) { 633 spin_unlock_bh(&mvm->queue_info_lock); 634 return -ENXIO; 635 } 636 spin_unlock_bh(&mvm->queue_info_lock); 637 638 IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue); 639 640 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd); 641 WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n", 642 queue, fifo, ret); 643 644 return ret; 645 } 646 647 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 648 u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg, 649 unsigned int wdg_timeout) 650 { 651 bool enable_queue = true; 652 653 spin_lock_bh(&mvm->queue_info_lock); 654 655 /* Make sure this TID isn't already enabled */ 656 if (mvm->queue_info[queue].tid_bitmap & BIT(cfg->tid)) { 657 spin_unlock_bh(&mvm->queue_info_lock); 658 IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n", 659 queue, cfg->tid); 660 return; 661 } 662 663 /* Update mappings and refcounts */ 664 if (mvm->queue_info[queue].hw_queue_refcount > 0) 665 enable_queue = false; 666 667 mvm->queue_info[queue].hw_queue_to_mac80211 |= BIT(mac80211_queue); 668 mvm->queue_info[queue].hw_queue_refcount++; 669 mvm->queue_info[queue].tid_bitmap |= BIT(cfg->tid); 670 mvm->queue_info[queue].ra_sta_id = cfg->sta_id; 671 672 if (enable_queue) { 673 if (cfg->tid != IWL_MAX_TID_COUNT) 674 mvm->queue_info[queue].mac80211_ac = 675 tid_to_mac80211_ac[cfg->tid]; 676 else 677 mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO; 678 679 mvm->queue_info[queue].txq_tid = cfg->tid; 680 } 681 682 IWL_DEBUG_TX_QUEUES(mvm, 683 "Enabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 684 queue, mvm->queue_info[queue].hw_queue_refcount, 685 mvm->queue_info[queue].hw_queue_to_mac80211); 686 687 spin_unlock_bh(&mvm->queue_info_lock); 688 689 /* Send the enabling command if we need to */ 690 if (enable_queue) { 691 struct iwl_scd_txq_cfg_cmd cmd = { 692 .scd_queue = queue, 693 .action = SCD_CFG_ENABLE_QUEUE, 694 .window = cfg->frame_limit, 695 .sta_id = cfg->sta_id, 696 .ssn = cpu_to_le16(ssn), 697 .tx_fifo = cfg->fifo, 698 .aggregate = cfg->aggregate, 699 .tid = cfg->tid, 700 }; 701 702 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, 703 wdg_timeout); 704 WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), 705 &cmd), 706 "Failed to configure queue %d on FIFO %d\n", queue, 707 cfg->fifo); 708 } 709 } 710 711 int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 712 u8 tid, u8 flags) 713 { 714 struct iwl_scd_txq_cfg_cmd cmd = { 715 .scd_queue = queue, 716 .action = SCD_CFG_DISABLE_QUEUE, 717 }; 718 bool remove_mac_queue = true; 719 int ret; 720 721 spin_lock_bh(&mvm->queue_info_lock); 722 723 if (WARN_ON(mvm->queue_info[queue].hw_queue_refcount == 0)) { 724 spin_unlock_bh(&mvm->queue_info_lock); 725 return 0; 726 } 727 728 mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 729 730 /* 731 * If there is another TID with the same AC - don't remove the MAC queue 732 * from the mapping 733 */ 734 if (tid < IWL_MAX_TID_COUNT) { 735 unsigned long tid_bitmap = 736 mvm->queue_info[queue].tid_bitmap; 737 int ac = tid_to_mac80211_ac[tid]; 738 int i; 739 740 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT) { 741 if (tid_to_mac80211_ac[i] == ac) 742 remove_mac_queue = false; 743 } 744 } 745 746 if (remove_mac_queue) 747 mvm->queue_info[queue].hw_queue_to_mac80211 &= 748 ~BIT(mac80211_queue); 749 mvm->queue_info[queue].hw_queue_refcount--; 750 751 cmd.action = mvm->queue_info[queue].hw_queue_refcount ? 752 SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 753 if (cmd.action == SCD_CFG_DISABLE_QUEUE) 754 mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 755 756 IWL_DEBUG_TX_QUEUES(mvm, 757 "Disabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 758 queue, 759 mvm->queue_info[queue].hw_queue_refcount, 760 mvm->queue_info[queue].hw_queue_to_mac80211); 761 762 /* If the queue is still enabled - nothing left to do in this func */ 763 if (cmd.action == SCD_CFG_ENABLE_QUEUE) { 764 spin_unlock_bh(&mvm->queue_info_lock); 765 return 0; 766 } 767 768 cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 769 cmd.tid = mvm->queue_info[queue].txq_tid; 770 771 /* Make sure queue info is correct even though we overwrite it */ 772 WARN(mvm->queue_info[queue].hw_queue_refcount || 773 mvm->queue_info[queue].tid_bitmap || 774 mvm->queue_info[queue].hw_queue_to_mac80211, 775 "TXQ #%d info out-of-sync - refcount=%d, mac map=0x%x, tid=0x%x\n", 776 queue, mvm->queue_info[queue].hw_queue_refcount, 777 mvm->queue_info[queue].hw_queue_to_mac80211, 778 mvm->queue_info[queue].tid_bitmap); 779 780 /* If we are here - the queue is freed and we can zero out these vals */ 781 mvm->queue_info[queue].hw_queue_refcount = 0; 782 mvm->queue_info[queue].tid_bitmap = 0; 783 mvm->queue_info[queue].hw_queue_to_mac80211 = 0; 784 785 /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 786 mvm->queue_info[queue].reserved = false; 787 788 spin_unlock_bh(&mvm->queue_info_lock); 789 790 iwl_trans_txq_disable(mvm->trans, queue, false); 791 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 792 sizeof(cmd), &cmd); 793 if (ret) 794 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 795 queue, ret); 796 797 return ret; 798 } 799 800 /** 801 * iwl_mvm_send_lq_cmd() - Send link quality command 802 * @init: This command is sent as part of station initialization right 803 * after station has been added. 804 * 805 * The link quality command is sent as the last step of station creation. 806 * This is the special case in which init is set and we call a callback in 807 * this case to clear the state indicating that station creation is in 808 * progress. 809 */ 810 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init) 811 { 812 struct iwl_host_cmd cmd = { 813 .id = LQ_CMD, 814 .len = { sizeof(struct iwl_lq_cmd), }, 815 .flags = init ? 0 : CMD_ASYNC, 816 .data = { lq, }, 817 }; 818 819 if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT)) 820 return -EINVAL; 821 822 return iwl_mvm_send_cmd(mvm, &cmd); 823 } 824 825 /** 826 * iwl_mvm_update_smps - Get a request to change the SMPS mode 827 * @req_type: The part of the driver who call for a change. 828 * @smps_requests: The request to change the SMPS mode. 829 * 830 * Get a requst to change the SMPS mode, 831 * and change it according to all other requests in the driver. 832 */ 833 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 834 enum iwl_mvm_smps_type_request req_type, 835 enum ieee80211_smps_mode smps_request) 836 { 837 struct iwl_mvm_vif *mvmvif; 838 enum ieee80211_smps_mode smps_mode; 839 int i; 840 841 lockdep_assert_held(&mvm->mutex); 842 843 /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ 844 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 845 return; 846 847 if (vif->type == NL80211_IFTYPE_AP) 848 smps_mode = IEEE80211_SMPS_OFF; 849 else 850 smps_mode = IEEE80211_SMPS_AUTOMATIC; 851 852 mvmvif = iwl_mvm_vif_from_mac80211(vif); 853 mvmvif->smps_requests[req_type] = smps_request; 854 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 855 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { 856 smps_mode = IEEE80211_SMPS_STATIC; 857 break; 858 } 859 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 860 smps_mode = IEEE80211_SMPS_DYNAMIC; 861 } 862 863 ieee80211_request_smps(vif, smps_mode); 864 } 865 866 int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear) 867 { 868 struct iwl_statistics_cmd scmd = { 869 .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0, 870 }; 871 struct iwl_host_cmd cmd = { 872 .id = STATISTICS_CMD, 873 .len[0] = sizeof(scmd), 874 .data[0] = &scmd, 875 .flags = CMD_WANT_SKB, 876 }; 877 int ret; 878 879 ret = iwl_mvm_send_cmd(mvm, &cmd); 880 if (ret) 881 return ret; 882 883 iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt); 884 iwl_free_resp(&cmd); 885 886 if (clear) 887 iwl_mvm_accu_radio_stats(mvm); 888 889 return 0; 890 } 891 892 void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm) 893 { 894 mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time; 895 mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time; 896 mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf; 897 mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan; 898 } 899 900 static void iwl_mvm_diversity_iter(void *_data, u8 *mac, 901 struct ieee80211_vif *vif) 902 { 903 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 904 bool *result = _data; 905 int i; 906 907 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 908 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || 909 mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 910 *result = false; 911 } 912 } 913 914 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) 915 { 916 bool result = true; 917 918 lockdep_assert_held(&mvm->mutex); 919 920 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 921 return false; 922 923 if (mvm->cfg->rx_with_siso_diversity) 924 return false; 925 926 ieee80211_iterate_active_interfaces_atomic( 927 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 928 iwl_mvm_diversity_iter, &result); 929 930 return result; 931 } 932 933 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 934 bool prev) 935 { 936 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 937 int res; 938 939 lockdep_assert_held(&mvm->mutex); 940 941 if (iwl_mvm_vif_low_latency(mvmvif) == prev) 942 return 0; 943 944 res = iwl_mvm_update_quotas(mvm, false, NULL); 945 if (res) 946 return res; 947 948 iwl_mvm_bt_coex_vif_change(mvm); 949 950 return iwl_mvm_power_update_mac(mvm); 951 } 952 953 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) 954 { 955 bool *result = _data; 956 957 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) 958 *result = true; 959 } 960 961 bool iwl_mvm_low_latency(struct iwl_mvm *mvm) 962 { 963 bool result = false; 964 965 ieee80211_iterate_active_interfaces_atomic( 966 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 967 iwl_mvm_ll_iter, &result); 968 969 return result; 970 } 971 972 struct iwl_bss_iter_data { 973 struct ieee80211_vif *vif; 974 bool error; 975 }; 976 977 static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac, 978 struct ieee80211_vif *vif) 979 { 980 struct iwl_bss_iter_data *data = _data; 981 982 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 983 return; 984 985 if (data->vif) { 986 data->error = true; 987 return; 988 } 989 990 data->vif = vif; 991 } 992 993 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm) 994 { 995 struct iwl_bss_iter_data bss_iter_data = {}; 996 997 ieee80211_iterate_active_interfaces_atomic( 998 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 999 iwl_mvm_bss_iface_iterator, &bss_iter_data); 1000 1001 if (bss_iter_data.error) { 1002 IWL_ERR(mvm, "More than one managed interface active!\n"); 1003 return ERR_PTR(-EINVAL); 1004 } 1005 1006 return bss_iter_data.vif; 1007 } 1008 1009 unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm, 1010 struct ieee80211_vif *vif, 1011 bool tdls, bool cmd_q) 1012 { 1013 struct iwl_fw_dbg_trigger_tlv *trigger; 1014 struct iwl_fw_dbg_trigger_txq_timer *txq_timer; 1015 unsigned int default_timeout = 1016 cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout; 1017 1018 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) 1019 return iwlmvm_mod_params.tfd_q_hang_detect ? 1020 default_timeout : IWL_WATCHDOG_DISABLED; 1021 1022 trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS); 1023 txq_timer = (void *)trigger->data; 1024 1025 if (tdls) 1026 return le32_to_cpu(txq_timer->tdls); 1027 1028 if (cmd_q) 1029 return le32_to_cpu(txq_timer->command_queue); 1030 1031 if (WARN_ON(!vif)) 1032 return default_timeout; 1033 1034 switch (ieee80211_vif_type_p2p(vif)) { 1035 case NL80211_IFTYPE_ADHOC: 1036 return le32_to_cpu(txq_timer->ibss); 1037 case NL80211_IFTYPE_STATION: 1038 return le32_to_cpu(txq_timer->bss); 1039 case NL80211_IFTYPE_AP: 1040 return le32_to_cpu(txq_timer->softap); 1041 case NL80211_IFTYPE_P2P_CLIENT: 1042 return le32_to_cpu(txq_timer->p2p_client); 1043 case NL80211_IFTYPE_P2P_GO: 1044 return le32_to_cpu(txq_timer->p2p_go); 1045 case NL80211_IFTYPE_P2P_DEVICE: 1046 return le32_to_cpu(txq_timer->p2p_device); 1047 default: 1048 WARN_ON(1); 1049 return mvm->cfg->base_params->wd_timeout; 1050 } 1051 } 1052 1053 void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1054 const char *errmsg) 1055 { 1056 struct iwl_fw_dbg_trigger_tlv *trig; 1057 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 1058 1059 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 1060 goto out; 1061 1062 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 1063 trig_mlme = (void *)trig->data; 1064 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 1065 goto out; 1066 1067 if (trig_mlme->stop_connection_loss && 1068 --trig_mlme->stop_connection_loss) 1069 goto out; 1070 1071 iwl_mvm_fw_dbg_collect_trig(mvm, trig, "%s", errmsg); 1072 1073 out: 1074 ieee80211_connection_loss(vif); 1075 } 1076 1077 /* 1078 * Remove inactive TIDs of a given queue. 1079 * If all queue TIDs are inactive - mark the queue as inactive 1080 * If only some the queue TIDs are inactive - unmap them from the queue 1081 */ 1082 static void iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 1083 struct iwl_mvm_sta *mvmsta, int queue, 1084 unsigned long tid_bitmap) 1085 { 1086 int tid; 1087 1088 lockdep_assert_held(&mvmsta->lock); 1089 lockdep_assert_held(&mvm->queue_info_lock); 1090 1091 /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 1092 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1093 /* If some TFDs are still queued - don't mark TID as inactive */ 1094 if (iwl_mvm_tid_queued(&mvmsta->tid_data[tid])) 1095 tid_bitmap &= ~BIT(tid); 1096 } 1097 1098 /* If all TIDs in the queue are inactive - mark queue as inactive. */ 1099 if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1100 mvm->queue_info[queue].status = IWL_MVM_QUEUE_INACTIVE; 1101 1102 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) 1103 mvmsta->tid_data[tid].is_tid_active = false; 1104 1105 IWL_DEBUG_TX_QUEUES(mvm, "Queue %d marked as inactive\n", 1106 queue); 1107 return; 1108 } 1109 1110 /* 1111 * If we are here, this is a shared queue and not all TIDs timed-out. 1112 * Remove the ones that did. 1113 */ 1114 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1115 int mac_queue = mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]; 1116 1117 mvmsta->tid_data[tid].txq_id = IEEE80211_INVAL_HW_QUEUE; 1118 mvm->queue_info[queue].hw_queue_to_mac80211 &= ~BIT(mac_queue); 1119 mvm->queue_info[queue].hw_queue_refcount--; 1120 mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 1121 mvmsta->tid_data[tid].is_tid_active = false; 1122 1123 IWL_DEBUG_TX_QUEUES(mvm, 1124 "Removing inactive TID %d from shared Q:%d\n", 1125 tid, queue); 1126 } 1127 1128 IWL_DEBUG_TX_QUEUES(mvm, 1129 "TXQ #%d left with tid bitmap 0x%x\n", queue, 1130 mvm->queue_info[queue].tid_bitmap); 1131 1132 /* 1133 * There may be different TIDs with the same mac queues, so make 1134 * sure all TIDs have existing corresponding mac queues enabled 1135 */ 1136 tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1137 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1138 mvm->queue_info[queue].hw_queue_to_mac80211 |= 1139 BIT(mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]); 1140 } 1141 1142 /* If the queue is marked as shared - "unshare" it */ 1143 if (mvm->queue_info[queue].hw_queue_refcount == 1 && 1144 mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 1145 mvm->queue_info[queue].status = IWL_MVM_QUEUE_RECONFIGURING; 1146 IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 1147 queue); 1148 } 1149 } 1150 1151 void iwl_mvm_inactivity_check(struct iwl_mvm *mvm) 1152 { 1153 unsigned long timeout_queues_map = 0; 1154 unsigned long now = jiffies; 1155 int i; 1156 1157 spin_lock_bh(&mvm->queue_info_lock); 1158 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) 1159 if (mvm->queue_info[i].hw_queue_refcount > 0) 1160 timeout_queues_map |= BIT(i); 1161 spin_unlock_bh(&mvm->queue_info_lock); 1162 1163 rcu_read_lock(); 1164 1165 /* 1166 * If a queue time outs - mark it as INACTIVE (don't remove right away 1167 * if we don't have to.) This is an optimization in case traffic comes 1168 * later, and we don't HAVE to use a currently-inactive queue 1169 */ 1170 for_each_set_bit(i, &timeout_queues_map, IWL_MAX_HW_QUEUES) { 1171 struct ieee80211_sta *sta; 1172 struct iwl_mvm_sta *mvmsta; 1173 u8 sta_id; 1174 int tid; 1175 unsigned long inactive_tid_bitmap = 0; 1176 unsigned long queue_tid_bitmap; 1177 1178 spin_lock_bh(&mvm->queue_info_lock); 1179 queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1180 1181 /* If TXQ isn't in active use anyway - nothing to do here... */ 1182 if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1183 mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) { 1184 spin_unlock_bh(&mvm->queue_info_lock); 1185 continue; 1186 } 1187 1188 /* Check to see if there are inactive TIDs on this queue */ 1189 for_each_set_bit(tid, &queue_tid_bitmap, 1190 IWL_MAX_TID_COUNT + 1) { 1191 if (time_after(mvm->queue_info[i].last_frame_time[tid] + 1192 IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 1193 continue; 1194 1195 inactive_tid_bitmap |= BIT(tid); 1196 } 1197 spin_unlock_bh(&mvm->queue_info_lock); 1198 1199 /* If all TIDs are active - finish check on this queue */ 1200 if (!inactive_tid_bitmap) 1201 continue; 1202 1203 /* 1204 * If we are here - the queue hadn't been served recently and is 1205 * in use 1206 */ 1207 1208 sta_id = mvm->queue_info[i].ra_sta_id; 1209 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1210 1211 /* 1212 * If the STA doesn't exist anymore, it isn't an error. It could 1213 * be that it was removed since getting the queues, and in this 1214 * case it should've inactivated its queues anyway. 1215 */ 1216 if (IS_ERR_OR_NULL(sta)) 1217 continue; 1218 1219 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1220 1221 spin_lock_bh(&mvmsta->lock); 1222 spin_lock(&mvm->queue_info_lock); 1223 iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 1224 inactive_tid_bitmap); 1225 spin_unlock(&mvm->queue_info_lock); 1226 spin_unlock_bh(&mvmsta->lock); 1227 } 1228 1229 rcu_read_unlock(); 1230 } 1231 1232 void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime) 1233 { 1234 bool ps_disabled; 1235 1236 lockdep_assert_held(&mvm->mutex); 1237 1238 /* Disable power save when reading GP2 */ 1239 ps_disabled = mvm->ps_disabled; 1240 if (!ps_disabled) { 1241 mvm->ps_disabled = true; 1242 iwl_mvm_power_update_device(mvm); 1243 } 1244 1245 *gp2 = iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG); 1246 *boottime = ktime_get_boot_ns(); 1247 1248 if (!ps_disabled) { 1249 mvm->ps_disabled = ps_disabled; 1250 iwl_mvm_power_update_device(mvm); 1251 } 1252 } 1253 1254 int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif, 1255 enum iwl_lqm_cmd_operatrions operation, 1256 u32 duration, u32 timeout) 1257 { 1258 struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif); 1259 struct iwl_link_qual_msrmnt_cmd cmd = { 1260 .cmd_operation = cpu_to_le32(operation), 1261 .mac_id = cpu_to_le32(mvm_vif->id), 1262 .measurement_time = cpu_to_le32(duration), 1263 .timeout = cpu_to_le32(timeout), 1264 }; 1265 u32 cmdid = 1266 iwl_cmd_id(LINK_QUALITY_MEASUREMENT_CMD, MAC_CONF_GROUP, 0); 1267 int ret; 1268 1269 if (!fw_has_capa(&mvm_vif->mvm->fw->ucode_capa, 1270 IWL_UCODE_TLV_CAPA_LQM_SUPPORT)) 1271 return -EOPNOTSUPP; 1272 1273 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 1274 return -EINVAL; 1275 1276 switch (operation) { 1277 case LQM_CMD_OPERATION_START_MEASUREMENT: 1278 if (iwl_mvm_lqm_active(mvm_vif->mvm)) 1279 return -EBUSY; 1280 if (!vif->bss_conf.assoc) 1281 return -EINVAL; 1282 mvm_vif->lqm_active = true; 1283 break; 1284 case LQM_CMD_OPERATION_STOP_MEASUREMENT: 1285 if (!iwl_mvm_lqm_active(mvm_vif->mvm)) 1286 return -EINVAL; 1287 break; 1288 default: 1289 return -EINVAL; 1290 } 1291 1292 ret = iwl_mvm_send_cmd_pdu(mvm_vif->mvm, cmdid, 0, sizeof(cmd), 1293 &cmd); 1294 1295 /* command failed - roll back lqm_active state */ 1296 if (ret) { 1297 mvm_vif->lqm_active = 1298 operation == LQM_CMD_OPERATION_STOP_MEASUREMENT; 1299 } 1300 1301 return ret; 1302 } 1303 1304 static void iwl_mvm_lqm_active_iterator(void *_data, u8 *mac, 1305 struct ieee80211_vif *vif) 1306 { 1307 struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif); 1308 bool *lqm_active = _data; 1309 1310 *lqm_active = *lqm_active || mvm_vif->lqm_active; 1311 } 1312 1313 bool iwl_mvm_lqm_active(struct iwl_mvm *mvm) 1314 { 1315 bool ret = false; 1316 1317 lockdep_assert_held(&mvm->mutex); 1318 ieee80211_iterate_active_interfaces_atomic( 1319 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1320 iwl_mvm_lqm_active_iterator, &ret); 1321 1322 return ret; 1323 } 1324