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