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 < 0x400000) { 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 .action = SCD_CFG_ENABLE_QUEUE, 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 mvm->queue_info[queue].txq_tid = cfg->tid; 674 } 675 676 IWL_DEBUG_TX_QUEUES(mvm, 677 "Enabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 678 queue, mvm->queue_info[queue].hw_queue_refcount, 679 mvm->queue_info[queue].hw_queue_to_mac80211); 680 681 spin_unlock_bh(&mvm->queue_info_lock); 682 683 /* Send the enabling command if we need to */ 684 if (enable_queue) { 685 struct iwl_scd_txq_cfg_cmd cmd = { 686 .scd_queue = queue, 687 .action = SCD_CFG_ENABLE_QUEUE, 688 .window = cfg->frame_limit, 689 .sta_id = cfg->sta_id, 690 .ssn = cpu_to_le16(ssn), 691 .tx_fifo = cfg->fifo, 692 .aggregate = cfg->aggregate, 693 .tid = cfg->tid, 694 }; 695 696 /* Set sta_id in the command, if it exists */ 697 if (iwl_mvm_is_dqa_supported(mvm)) 698 cmd.sta_id = cfg->sta_id; 699 700 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, 701 wdg_timeout); 702 WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), 703 &cmd), 704 "Failed to configure queue %d on FIFO %d\n", queue, 705 cfg->fifo); 706 } 707 } 708 709 void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue, 710 u8 tid, u8 flags) 711 { 712 struct iwl_scd_txq_cfg_cmd cmd = { 713 .scd_queue = queue, 714 .action = SCD_CFG_DISABLE_QUEUE, 715 }; 716 bool remove_mac_queue = true; 717 int ret; 718 719 spin_lock_bh(&mvm->queue_info_lock); 720 721 if (WARN_ON(mvm->queue_info[queue].hw_queue_refcount == 0)) { 722 spin_unlock_bh(&mvm->queue_info_lock); 723 return; 724 } 725 726 mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 727 728 /* 729 * If there is another TID with the same AC - don't remove the MAC queue 730 * from the mapping 731 */ 732 if (tid < IWL_MAX_TID_COUNT) { 733 unsigned long tid_bitmap = 734 mvm->queue_info[queue].tid_bitmap; 735 int ac = tid_to_mac80211_ac[tid]; 736 int i; 737 738 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT) { 739 if (tid_to_mac80211_ac[i] == ac) 740 remove_mac_queue = false; 741 } 742 } 743 744 if (remove_mac_queue) 745 mvm->queue_info[queue].hw_queue_to_mac80211 &= 746 ~BIT(mac80211_queue); 747 mvm->queue_info[queue].hw_queue_refcount--; 748 749 cmd.action = mvm->queue_info[queue].hw_queue_refcount ? 750 SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE; 751 if (cmd.action == SCD_CFG_DISABLE_QUEUE) 752 mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE; 753 754 IWL_DEBUG_TX_QUEUES(mvm, 755 "Disabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n", 756 queue, 757 mvm->queue_info[queue].hw_queue_refcount, 758 mvm->queue_info[queue].hw_queue_to_mac80211); 759 760 /* If the queue is still enabled - nothing left to do in this func */ 761 if (cmd.action == SCD_CFG_ENABLE_QUEUE) { 762 spin_unlock_bh(&mvm->queue_info_lock); 763 return; 764 } 765 766 cmd.sta_id = mvm->queue_info[queue].ra_sta_id; 767 cmd.tid = mvm->queue_info[queue].txq_tid; 768 769 /* Make sure queue info is correct even though we overwrite it */ 770 WARN(mvm->queue_info[queue].hw_queue_refcount || 771 mvm->queue_info[queue].tid_bitmap || 772 mvm->queue_info[queue].hw_queue_to_mac80211, 773 "TXQ #%d info out-of-sync - refcount=%d, mac map=0x%x, tid=0x%x\n", 774 queue, mvm->queue_info[queue].hw_queue_refcount, 775 mvm->queue_info[queue].hw_queue_to_mac80211, 776 mvm->queue_info[queue].tid_bitmap); 777 778 /* If we are here - the queue is freed and we can zero out these vals */ 779 mvm->queue_info[queue].hw_queue_refcount = 0; 780 mvm->queue_info[queue].tid_bitmap = 0; 781 mvm->queue_info[queue].hw_queue_to_mac80211 = 0; 782 783 /* Regardless if this is a reserved TXQ for a STA - mark it as false */ 784 mvm->queue_info[queue].reserved = false; 785 786 spin_unlock_bh(&mvm->queue_info_lock); 787 788 iwl_trans_txq_disable(mvm->trans, queue, false); 789 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 790 sizeof(cmd), &cmd); 791 if (ret) 792 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 793 queue, ret); 794 } 795 796 /** 797 * iwl_mvm_send_lq_cmd() - Send link quality command 798 * @init: This command is sent as part of station initialization right 799 * after station has been added. 800 * 801 * The link quality command is sent as the last step of station creation. 802 * This is the special case in which init is set and we call a callback in 803 * this case to clear the state indicating that station creation is in 804 * progress. 805 */ 806 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init) 807 { 808 struct iwl_host_cmd cmd = { 809 .id = LQ_CMD, 810 .len = { sizeof(struct iwl_lq_cmd), }, 811 .flags = init ? 0 : CMD_ASYNC, 812 .data = { lq, }, 813 }; 814 815 if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT)) 816 return -EINVAL; 817 818 return iwl_mvm_send_cmd(mvm, &cmd); 819 } 820 821 /** 822 * iwl_mvm_update_smps - Get a request to change the SMPS mode 823 * @req_type: The part of the driver who call for a change. 824 * @smps_requests: The request to change the SMPS mode. 825 * 826 * Get a requst to change the SMPS mode, 827 * and change it according to all other requests in the driver. 828 */ 829 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 830 enum iwl_mvm_smps_type_request req_type, 831 enum ieee80211_smps_mode smps_request) 832 { 833 struct iwl_mvm_vif *mvmvif; 834 enum ieee80211_smps_mode smps_mode; 835 int i; 836 837 lockdep_assert_held(&mvm->mutex); 838 839 /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ 840 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 841 return; 842 843 if (vif->type == NL80211_IFTYPE_AP) 844 smps_mode = IEEE80211_SMPS_OFF; 845 else 846 smps_mode = IEEE80211_SMPS_AUTOMATIC; 847 848 mvmvif = iwl_mvm_vif_from_mac80211(vif); 849 mvmvif->smps_requests[req_type] = smps_request; 850 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 851 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { 852 smps_mode = IEEE80211_SMPS_STATIC; 853 break; 854 } 855 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 856 smps_mode = IEEE80211_SMPS_DYNAMIC; 857 } 858 859 ieee80211_request_smps(vif, smps_mode); 860 } 861 862 int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear) 863 { 864 struct iwl_statistics_cmd scmd = { 865 .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0, 866 }; 867 struct iwl_host_cmd cmd = { 868 .id = STATISTICS_CMD, 869 .len[0] = sizeof(scmd), 870 .data[0] = &scmd, 871 .flags = CMD_WANT_SKB, 872 }; 873 int ret; 874 875 ret = iwl_mvm_send_cmd(mvm, &cmd); 876 if (ret) 877 return ret; 878 879 iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt); 880 iwl_free_resp(&cmd); 881 882 if (clear) 883 iwl_mvm_accu_radio_stats(mvm); 884 885 return 0; 886 } 887 888 void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm) 889 { 890 mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time; 891 mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time; 892 mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf; 893 mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan; 894 } 895 896 static void iwl_mvm_diversity_iter(void *_data, u8 *mac, 897 struct ieee80211_vif *vif) 898 { 899 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 900 bool *result = _data; 901 int i; 902 903 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 904 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || 905 mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 906 *result = false; 907 } 908 } 909 910 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) 911 { 912 bool result = true; 913 914 lockdep_assert_held(&mvm->mutex); 915 916 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 917 return false; 918 919 if (mvm->cfg->rx_with_siso_diversity) 920 return false; 921 922 ieee80211_iterate_active_interfaces_atomic( 923 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 924 iwl_mvm_diversity_iter, &result); 925 926 return result; 927 } 928 929 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 930 bool prev) 931 { 932 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 933 int res; 934 935 lockdep_assert_held(&mvm->mutex); 936 937 if (iwl_mvm_vif_low_latency(mvmvif) == prev) 938 return 0; 939 940 res = iwl_mvm_update_quotas(mvm, false, NULL); 941 if (res) 942 return res; 943 944 iwl_mvm_bt_coex_vif_change(mvm); 945 946 return iwl_mvm_power_update_mac(mvm); 947 } 948 949 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) 950 { 951 bool *result = _data; 952 953 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) 954 *result = true; 955 } 956 957 bool iwl_mvm_low_latency(struct iwl_mvm *mvm) 958 { 959 bool result = false; 960 961 ieee80211_iterate_active_interfaces_atomic( 962 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 963 iwl_mvm_ll_iter, &result); 964 965 return result; 966 } 967 968 struct iwl_bss_iter_data { 969 struct ieee80211_vif *vif; 970 bool error; 971 }; 972 973 static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac, 974 struct ieee80211_vif *vif) 975 { 976 struct iwl_bss_iter_data *data = _data; 977 978 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 979 return; 980 981 if (data->vif) { 982 data->error = true; 983 return; 984 } 985 986 data->vif = vif; 987 } 988 989 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm) 990 { 991 struct iwl_bss_iter_data bss_iter_data = {}; 992 993 ieee80211_iterate_active_interfaces_atomic( 994 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 995 iwl_mvm_bss_iface_iterator, &bss_iter_data); 996 997 if (bss_iter_data.error) { 998 IWL_ERR(mvm, "More than one managed interface active!\n"); 999 return ERR_PTR(-EINVAL); 1000 } 1001 1002 return bss_iter_data.vif; 1003 } 1004 1005 unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm, 1006 struct ieee80211_vif *vif, 1007 bool tdls, bool cmd_q) 1008 { 1009 struct iwl_fw_dbg_trigger_tlv *trigger; 1010 struct iwl_fw_dbg_trigger_txq_timer *txq_timer; 1011 unsigned int default_timeout = 1012 cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout; 1013 1014 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) 1015 return iwlmvm_mod_params.tfd_q_hang_detect ? 1016 default_timeout : IWL_WATCHDOG_DISABLED; 1017 1018 trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS); 1019 txq_timer = (void *)trigger->data; 1020 1021 if (tdls) 1022 return le32_to_cpu(txq_timer->tdls); 1023 1024 if (cmd_q) 1025 return le32_to_cpu(txq_timer->command_queue); 1026 1027 if (WARN_ON(!vif)) 1028 return default_timeout; 1029 1030 switch (ieee80211_vif_type_p2p(vif)) { 1031 case NL80211_IFTYPE_ADHOC: 1032 return le32_to_cpu(txq_timer->ibss); 1033 case NL80211_IFTYPE_STATION: 1034 return le32_to_cpu(txq_timer->bss); 1035 case NL80211_IFTYPE_AP: 1036 return le32_to_cpu(txq_timer->softap); 1037 case NL80211_IFTYPE_P2P_CLIENT: 1038 return le32_to_cpu(txq_timer->p2p_client); 1039 case NL80211_IFTYPE_P2P_GO: 1040 return le32_to_cpu(txq_timer->p2p_go); 1041 case NL80211_IFTYPE_P2P_DEVICE: 1042 return le32_to_cpu(txq_timer->p2p_device); 1043 default: 1044 WARN_ON(1); 1045 return mvm->cfg->base_params->wd_timeout; 1046 } 1047 } 1048 1049 void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1050 const char *errmsg) 1051 { 1052 struct iwl_fw_dbg_trigger_tlv *trig; 1053 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 1054 1055 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 1056 goto out; 1057 1058 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 1059 trig_mlme = (void *)trig->data; 1060 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 1061 goto out; 1062 1063 if (trig_mlme->stop_connection_loss && 1064 --trig_mlme->stop_connection_loss) 1065 goto out; 1066 1067 iwl_mvm_fw_dbg_collect_trig(mvm, trig, "%s", errmsg); 1068 1069 out: 1070 ieee80211_connection_loss(vif); 1071 } 1072 1073 /* 1074 * Remove inactive TIDs of a given queue. 1075 * If all queue TIDs are inactive - mark the queue as inactive 1076 * If only some the queue TIDs are inactive - unmap them from the queue 1077 */ 1078 static void iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm, 1079 struct iwl_mvm_sta *mvmsta, int queue, 1080 unsigned long tid_bitmap) 1081 { 1082 int tid; 1083 1084 lockdep_assert_held(&mvmsta->lock); 1085 lockdep_assert_held(&mvm->queue_info_lock); 1086 1087 /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */ 1088 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1089 /* If some TFDs are still queued - don't mark TID as inactive */ 1090 if (iwl_mvm_tid_queued(&mvmsta->tid_data[tid])) 1091 tid_bitmap &= ~BIT(tid); 1092 } 1093 1094 /* If all TIDs in the queue are inactive - mark queue as inactive. */ 1095 if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) { 1096 mvm->queue_info[queue].status = IWL_MVM_QUEUE_INACTIVE; 1097 1098 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) 1099 mvmsta->tid_data[tid].is_tid_active = false; 1100 1101 IWL_DEBUG_TX_QUEUES(mvm, "Queue %d marked as inactive\n", 1102 queue); 1103 return; 1104 } 1105 1106 /* 1107 * If we are here, this is a shared queue and not all TIDs timed-out. 1108 * Remove the ones that did. 1109 */ 1110 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1111 int mac_queue = mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]; 1112 1113 mvmsta->tid_data[tid].txq_id = IEEE80211_INVAL_HW_QUEUE; 1114 mvm->queue_info[queue].hw_queue_to_mac80211 &= ~BIT(mac_queue); 1115 mvm->queue_info[queue].hw_queue_refcount--; 1116 mvm->queue_info[queue].tid_bitmap &= ~BIT(tid); 1117 mvmsta->tid_data[tid].is_tid_active = false; 1118 1119 IWL_DEBUG_TX_QUEUES(mvm, 1120 "Removing inactive TID %d from shared Q:%d\n", 1121 tid, queue); 1122 } 1123 1124 IWL_DEBUG_TX_QUEUES(mvm, 1125 "TXQ #%d left with tid bitmap 0x%x\n", queue, 1126 mvm->queue_info[queue].tid_bitmap); 1127 1128 /* 1129 * There may be different TIDs with the same mac queues, so make 1130 * sure all TIDs have existing corresponding mac queues enabled 1131 */ 1132 tid_bitmap = mvm->queue_info[queue].tid_bitmap; 1133 for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1134 mvm->queue_info[queue].hw_queue_to_mac80211 |= 1135 BIT(mvmsta->vif->hw_queue[tid_to_mac80211_ac[tid]]); 1136 } 1137 1138 /* If the queue is marked as shared - "unshare" it */ 1139 if (mvm->queue_info[queue].hw_queue_refcount == 1 && 1140 mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) { 1141 mvm->queue_info[queue].status = IWL_MVM_QUEUE_RECONFIGURING; 1142 IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n", 1143 queue); 1144 } 1145 } 1146 1147 void iwl_mvm_inactivity_check(struct iwl_mvm *mvm) 1148 { 1149 unsigned long timeout_queues_map = 0; 1150 unsigned long now = jiffies; 1151 int i; 1152 1153 spin_lock_bh(&mvm->queue_info_lock); 1154 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) 1155 if (mvm->queue_info[i].hw_queue_refcount > 0) 1156 timeout_queues_map |= BIT(i); 1157 spin_unlock_bh(&mvm->queue_info_lock); 1158 1159 rcu_read_lock(); 1160 1161 /* 1162 * If a queue time outs - mark it as INACTIVE (don't remove right away 1163 * if we don't have to.) This is an optimization in case traffic comes 1164 * later, and we don't HAVE to use a currently-inactive queue 1165 */ 1166 for_each_set_bit(i, &timeout_queues_map, IWL_MAX_HW_QUEUES) { 1167 struct ieee80211_sta *sta; 1168 struct iwl_mvm_sta *mvmsta; 1169 u8 sta_id; 1170 int tid; 1171 unsigned long inactive_tid_bitmap = 0; 1172 unsigned long queue_tid_bitmap; 1173 1174 spin_lock_bh(&mvm->queue_info_lock); 1175 queue_tid_bitmap = mvm->queue_info[i].tid_bitmap; 1176 1177 /* If TXQ isn't in active use anyway - nothing to do here... */ 1178 if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY && 1179 mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED) { 1180 spin_unlock_bh(&mvm->queue_info_lock); 1181 continue; 1182 } 1183 1184 /* Check to see if there are inactive TIDs on this queue */ 1185 for_each_set_bit(tid, &queue_tid_bitmap, 1186 IWL_MAX_TID_COUNT + 1) { 1187 if (time_after(mvm->queue_info[i].last_frame_time[tid] + 1188 IWL_MVM_DQA_QUEUE_TIMEOUT, now)) 1189 continue; 1190 1191 inactive_tid_bitmap |= BIT(tid); 1192 } 1193 spin_unlock_bh(&mvm->queue_info_lock); 1194 1195 /* If all TIDs are active - finish check on this queue */ 1196 if (!inactive_tid_bitmap) 1197 continue; 1198 1199 /* 1200 * If we are here - the queue hadn't been served recently and is 1201 * in use 1202 */ 1203 1204 sta_id = mvm->queue_info[i].ra_sta_id; 1205 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1206 1207 /* 1208 * If the STA doesn't exist anymore, it isn't an error. It could 1209 * be that it was removed since getting the queues, and in this 1210 * case it should've inactivated its queues anyway. 1211 */ 1212 if (IS_ERR_OR_NULL(sta)) 1213 continue; 1214 1215 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1216 1217 spin_lock_bh(&mvmsta->lock); 1218 spin_lock(&mvm->queue_info_lock); 1219 iwl_mvm_remove_inactive_tids(mvm, mvmsta, i, 1220 inactive_tid_bitmap); 1221 spin_unlock(&mvm->queue_info_lock); 1222 spin_unlock_bh(&mvmsta->lock); 1223 } 1224 1225 rcu_read_unlock(); 1226 } 1227 1228 void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime) 1229 { 1230 bool ps_disabled; 1231 1232 lockdep_assert_held(&mvm->mutex); 1233 1234 /* Disable power save when reading GP2 */ 1235 ps_disabled = mvm->ps_disabled; 1236 if (!ps_disabled) { 1237 mvm->ps_disabled = true; 1238 iwl_mvm_power_update_device(mvm); 1239 } 1240 1241 *gp2 = iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG); 1242 *boottime = ktime_get_boot_ns(); 1243 1244 if (!ps_disabled) { 1245 mvm->ps_disabled = ps_disabled; 1246 iwl_mvm_power_update_device(mvm); 1247 } 1248 } 1249 1250 int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif, 1251 enum iwl_lqm_cmd_operatrions operation, 1252 u32 duration, u32 timeout) 1253 { 1254 struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif); 1255 struct iwl_link_qual_msrmnt_cmd cmd = { 1256 .cmd_operation = cpu_to_le32(operation), 1257 .mac_id = cpu_to_le32(mvm_vif->id), 1258 .measurement_time = cpu_to_le32(duration), 1259 .timeout = cpu_to_le32(timeout), 1260 }; 1261 u32 cmdid = 1262 iwl_cmd_id(LINK_QUALITY_MEASUREMENT_CMD, MAC_CONF_GROUP, 0); 1263 int ret; 1264 1265 if (!fw_has_capa(&mvm_vif->mvm->fw->ucode_capa, 1266 IWL_UCODE_TLV_CAPA_LQM_SUPPORT)) 1267 return -EOPNOTSUPP; 1268 1269 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 1270 return -EINVAL; 1271 1272 switch (operation) { 1273 case LQM_CMD_OPERATION_START_MEASUREMENT: 1274 if (iwl_mvm_lqm_active(mvm_vif->mvm)) 1275 return -EBUSY; 1276 if (!vif->bss_conf.assoc) 1277 return -EINVAL; 1278 mvm_vif->lqm_active = true; 1279 break; 1280 case LQM_CMD_OPERATION_STOP_MEASUREMENT: 1281 if (!iwl_mvm_lqm_active(mvm_vif->mvm)) 1282 return -EINVAL; 1283 break; 1284 default: 1285 return -EINVAL; 1286 } 1287 1288 ret = iwl_mvm_send_cmd_pdu(mvm_vif->mvm, cmdid, 0, sizeof(cmd), 1289 &cmd); 1290 1291 /* command failed - roll back lqm_active state */ 1292 if (ret) { 1293 mvm_vif->lqm_active = 1294 operation == LQM_CMD_OPERATION_STOP_MEASUREMENT; 1295 } 1296 1297 return ret; 1298 } 1299 1300 static void iwl_mvm_lqm_active_iterator(void *_data, u8 *mac, 1301 struct ieee80211_vif *vif) 1302 { 1303 struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif); 1304 bool *lqm_active = _data; 1305 1306 *lqm_active = *lqm_active || mvm_vif->lqm_active; 1307 } 1308 1309 bool iwl_mvm_lqm_active(struct iwl_mvm *mvm) 1310 { 1311 bool ret = false; 1312 1313 lockdep_assert_held(&mvm->mutex); 1314 ieee80211_iterate_active_interfaces_atomic( 1315 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1316 iwl_mvm_lqm_active_iterator, &ret); 1317 1318 return ret; 1319 } 1320