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 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 23 * USA 24 * 25 * The full GNU General Public License is included in this distribution 26 * in the file called COPYING. 27 * 28 * Contact Information: 29 * Intel Linux Wireless <ilw@linux.intel.com> 30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 31 * 32 * BSD LICENSE 33 * 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 42 * * Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * * Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in 46 * the documentation and/or other materials provided with the 47 * distribution. 48 * * Neither the name Intel Corporation nor the names of its 49 * contributors may be used to endorse or promote products derived 50 * from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 * 64 *****************************************************************************/ 65#include <net/mac80211.h> 66 67#include "iwl-debug.h" 68#include "iwl-io.h" 69#include "iwl-prph.h" 70 71#include "mvm.h" 72#include "fw-api-rs.h" 73 74/* 75 * Will return 0 even if the cmd failed when RFKILL is asserted unless 76 * CMD_WANT_SKB is set in cmd->flags. 77 */ 78int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) 79{ 80 int ret; 81 82#if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 83 if (WARN_ON(mvm->d3_test_active)) 84 return -EIO; 85#endif 86 87 /* 88 * Synchronous commands from this op-mode must hold 89 * the mutex, this ensures we don't try to send two 90 * (or more) synchronous commands at a time. 91 */ 92 if (!(cmd->flags & CMD_ASYNC)) 93 lockdep_assert_held(&mvm->mutex); 94 95 ret = iwl_trans_send_cmd(mvm->trans, cmd); 96 97 /* 98 * If the caller wants the SKB, then don't hide any problems, the 99 * caller might access the response buffer which will be NULL if 100 * the command failed. 101 */ 102 if (cmd->flags & CMD_WANT_SKB) 103 return ret; 104 105 /* Silently ignore failures if RFKILL is asserted */ 106 if (!ret || ret == -ERFKILL) 107 return 0; 108 return ret; 109} 110 111int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id, 112 u32 flags, u16 len, const void *data) 113{ 114 struct iwl_host_cmd cmd = { 115 .id = id, 116 .len = { len, }, 117 .data = { data, }, 118 .flags = flags, 119 }; 120 121 return iwl_mvm_send_cmd(mvm, &cmd); 122} 123 124/* 125 * We assume that the caller set the status to the sucess value 126 */ 127int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, 128 u32 *status) 129{ 130 struct iwl_rx_packet *pkt; 131 struct iwl_cmd_response *resp; 132 int ret, resp_len; 133 134 lockdep_assert_held(&mvm->mutex); 135 136#if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 137 if (WARN_ON(mvm->d3_test_active)) 138 return -EIO; 139#endif 140 141 /* 142 * Only synchronous commands can wait for status, 143 * we use WANT_SKB so the caller can't. 144 */ 145 if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), 146 "cmd flags %x", cmd->flags)) 147 return -EINVAL; 148 149 cmd->flags |= CMD_WANT_SKB; 150 151 ret = iwl_trans_send_cmd(mvm->trans, cmd); 152 if (ret == -ERFKILL) { 153 /* 154 * The command failed because of RFKILL, don't update 155 * the status, leave it as success and return 0. 156 */ 157 return 0; 158 } else if (ret) { 159 return ret; 160 } 161 162 pkt = cmd->resp_pkt; 163 /* Can happen if RFKILL is asserted */ 164 if (!pkt) { 165 ret = 0; 166 goto out_free_resp; 167 } 168 169 if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { 170 ret = -EIO; 171 goto out_free_resp; 172 } 173 174 resp_len = iwl_rx_packet_payload_len(pkt); 175 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 176 ret = -EIO; 177 goto out_free_resp; 178 } 179 180 resp = (void *)pkt->data; 181 *status = le32_to_cpu(resp->status); 182 out_free_resp: 183 iwl_free_resp(cmd); 184 return ret; 185} 186 187/* 188 * We assume that the caller set the status to the sucess value 189 */ 190int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id, u16 len, 191 const void *data, u32 *status) 192{ 193 struct iwl_host_cmd cmd = { 194 .id = id, 195 .len = { len, }, 196 .data = { data, }, 197 }; 198 199 return iwl_mvm_send_cmd_status(mvm, &cmd, status); 200} 201 202#define IWL_DECLARE_RATE_INFO(r) \ 203 [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP 204 205/* 206 * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP 207 */ 208static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = { 209 IWL_DECLARE_RATE_INFO(1), 210 IWL_DECLARE_RATE_INFO(2), 211 IWL_DECLARE_RATE_INFO(5), 212 IWL_DECLARE_RATE_INFO(11), 213 IWL_DECLARE_RATE_INFO(6), 214 IWL_DECLARE_RATE_INFO(9), 215 IWL_DECLARE_RATE_INFO(12), 216 IWL_DECLARE_RATE_INFO(18), 217 IWL_DECLARE_RATE_INFO(24), 218 IWL_DECLARE_RATE_INFO(36), 219 IWL_DECLARE_RATE_INFO(48), 220 IWL_DECLARE_RATE_INFO(54), 221}; 222 223int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, 224 enum ieee80211_band band) 225{ 226 int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; 227 int idx; 228 int band_offset = 0; 229 230 /* Legacy rate format, search for match in table */ 231 if (band == IEEE80211_BAND_5GHZ) 232 band_offset = IWL_FIRST_OFDM_RATE; 233 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) 234 if (fw_rate_idx_to_plcp[idx] == rate) 235 return idx - band_offset; 236 237 return -1; 238} 239 240u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx) 241{ 242 /* Get PLCP rate for tx_cmd->rate_n_flags */ 243 return fw_rate_idx_to_plcp[rate_idx]; 244} 245 246int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, 247 struct iwl_device_cmd *cmd) 248{ 249 struct iwl_rx_packet *pkt = rxb_addr(rxb); 250 struct iwl_error_resp *err_resp = (void *)pkt->data; 251 252 IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", 253 le32_to_cpu(err_resp->error_type), err_resp->cmd_id); 254 IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", 255 le16_to_cpu(err_resp->bad_cmd_seq_num), 256 le32_to_cpu(err_resp->error_service)); 257 IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n", 258 le64_to_cpu(err_resp->timestamp)); 259 return 0; 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 */ 266u8 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 */ 280u8 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 295static 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 317static 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 */ 335struct iwl_error_event_table { 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; 381 382/* 383 * UMAC error struct - relevant starting from family 8000 chip. 384 * Note: This structure is read from the device with IO accesses, 385 * and the reading already does the endian conversion. As it is 386 * read with u32-sized accesses, any members with a different size 387 * need to be ordered correctly though! 388 */ 389struct iwl_umac_error_event_table { 390 u32 valid; /* (nonzero) valid, (0) log is empty */ 391 u32 error_id; /* type of error */ 392 u32 blink1; /* branch link */ 393 u32 blink2; /* branch link */ 394 u32 ilink1; /* interrupt link */ 395 u32 ilink2; /* interrupt link */ 396 u32 data1; /* error-specific data */ 397 u32 data2; /* error-specific data */ 398 u32 data3; /* error-specific data */ 399 u32 umac_fw_ver; /* UMAC version */ 400 u32 umac_fw_api_ver; /* UMAC FW API ver */ 401 u32 frame_pointer; /* core register 27*/ 402 u32 stack_pointer; /* core register 28 */ 403 u32 cmd_header; /* latest host cmd sent to UMAC */ 404 u32 nic_isr_pref; /* ISR status register */ 405} __packed; 406 407#define ERROR_START_OFFSET (1 * sizeof(u32)) 408#define ERROR_ELEM_SIZE (7 * sizeof(u32)) 409 410static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm) 411{ 412 struct iwl_trans *trans = mvm->trans; 413 struct iwl_umac_error_event_table table; 414 u32 base; 415 416 base = mvm->umac_error_event_table; 417 418 if (base < 0x800000) { 419 IWL_ERR(mvm, 420 "Not valid error log pointer 0x%08X for %s uCode\n", 421 base, 422 (mvm->cur_ucode == IWL_UCODE_INIT) 423 ? "Init" : "RT"); 424 return; 425 } 426 427 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 428 429 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 430 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 431 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 432 mvm->status, table.valid); 433 } 434 435 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, 436 desc_lookup(table.error_id)); 437 IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1); 438 IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2); 439 IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1); 440 IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2); 441 IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1); 442 IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2); 443 IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3); 444 IWL_ERR(mvm, "0x%08X | umac version\n", table.umac_fw_ver); 445 IWL_ERR(mvm, "0x%08X | umac api version\n", table.umac_fw_api_ver); 446 IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer); 447 IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer); 448 IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header); 449 IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref); 450} 451 452void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) 453{ 454 struct iwl_trans *trans = mvm->trans; 455 struct iwl_error_event_table table; 456 u32 base; 457 458 base = mvm->error_event_table; 459 if (mvm->cur_ucode == IWL_UCODE_INIT) { 460 if (!base) 461 base = mvm->fw->init_errlog_ptr; 462 } else { 463 if (!base) 464 base = mvm->fw->inst_errlog_ptr; 465 } 466 467 if (base < 0x800000) { 468 IWL_ERR(mvm, 469 "Not valid error log pointer 0x%08X for %s uCode\n", 470 base, 471 (mvm->cur_ucode == IWL_UCODE_INIT) 472 ? "Init" : "RT"); 473 return; 474 } 475 476 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 477 478 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 479 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 480 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 481 mvm->status, table.valid); 482 } 483 484 /* Do not change this output - scripts rely on it */ 485 486 IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version); 487 488 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, 489 table.data1, table.data2, table.data3, 490 table.blink1, table.blink2, table.ilink1, 491 table.ilink2, table.bcon_time, table.gp1, 492 table.gp2, table.gp3, table.ucode_ver, 493 table.hw_ver, table.brd_ver); 494 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, 495 desc_lookup(table.error_id)); 496 IWL_ERR(mvm, "0x%08X | uPc\n", table.pc); 497 IWL_ERR(mvm, "0x%08X | branchlink1\n", table.blink1); 498 IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2); 499 IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1); 500 IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2); 501 IWL_ERR(mvm, "0x%08X | data1\n", table.data1); 502 IWL_ERR(mvm, "0x%08X | data2\n", table.data2); 503 IWL_ERR(mvm, "0x%08X | data3\n", table.data3); 504 IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time); 505 IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low); 506 IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi); 507 IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1); 508 IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2); 509 IWL_ERR(mvm, "0x%08X | time gp3\n", table.gp3); 510 IWL_ERR(mvm, "0x%08X | uCode version\n", table.ucode_ver); 511 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); 512 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); 513 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); 514 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); 515 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); 516 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); 517 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); 518 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); 519 IWL_ERR(mvm, "0x%08X | isr_pref\n", table.isr_pref); 520 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); 521 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); 522 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); 523 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); 524 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); 525 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); 526 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); 527 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); 528 529 if (mvm->support_umac_log) 530 iwl_mvm_dump_umac_error_log(mvm); 531} 532 533void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn, 534 const struct iwl_trans_txq_scd_cfg *cfg) 535{ 536 if (iwl_mvm_is_dqa_supported(mvm)) { 537 struct iwl_scd_txq_cfg_cmd cmd = { 538 .scd_queue = queue, 539 .enable = 1, 540 .window = cfg->frame_limit, 541 .sta_id = cfg->sta_id, 542 .ssn = cpu_to_le16(ssn), 543 .tx_fifo = cfg->fifo, 544 .aggregate = cfg->aggregate, 545 .flags = IWL_SCD_FLAGS_DQA_ENABLED, 546 .tid = cfg->tid, 547 .control = IWL_SCD_CONTROL_SET_SSN, 548 }; 549 int ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, 550 sizeof(cmd), &cmd); 551 if (ret) 552 IWL_ERR(mvm, 553 "Failed to configure queue %d on FIFO %d\n", 554 queue, cfg->fifo); 555 } 556 557 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, 558 iwl_mvm_is_dqa_supported(mvm) ? NULL : cfg); 559} 560 561void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue) 562{ 563 iwl_trans_txq_disable(mvm->trans, queue, 564 !iwl_mvm_is_dqa_supported(mvm)); 565 566 if (iwl_mvm_is_dqa_supported(mvm)) { 567 struct iwl_scd_txq_cfg_cmd cmd = { 568 .scd_queue = queue, 569 .enable = 0, 570 }; 571 int ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, CMD_ASYNC, 572 sizeof(cmd), &cmd); 573 if (ret) 574 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 575 queue, ret); 576 } 577} 578 579/** 580 * iwl_mvm_send_lq_cmd() - Send link quality command 581 * @init: This command is sent as part of station initialization right 582 * after station has been added. 583 * 584 * The link quality command is sent as the last step of station creation. 585 * This is the special case in which init is set and we call a callback in 586 * this case to clear the state indicating that station creation is in 587 * progress. 588 */ 589int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init) 590{ 591 struct iwl_host_cmd cmd = { 592 .id = LQ_CMD, 593 .len = { sizeof(struct iwl_lq_cmd), }, 594 .flags = init ? 0 : CMD_ASYNC, 595 .data = { lq, }, 596 }; 597 598 if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT)) 599 return -EINVAL; 600 601 return iwl_mvm_send_cmd(mvm, &cmd); 602} 603 604/** 605 * iwl_mvm_update_smps - Get a requst to change the SMPS mode 606 * @req_type: The part of the driver who call for a change. 607 * @smps_requests: The request to change the SMPS mode. 608 * 609 * Get a requst to change the SMPS mode, 610 * and change it according to all other requests in the driver. 611 */ 612void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 613 enum iwl_mvm_smps_type_request req_type, 614 enum ieee80211_smps_mode smps_request) 615{ 616 struct iwl_mvm_vif *mvmvif; 617 enum ieee80211_smps_mode smps_mode; 618 int i; 619 620 lockdep_assert_held(&mvm->mutex); 621 622 /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ 623 if (num_of_ant(mvm->fw->valid_rx_ant) == 1) 624 return; 625 626 if (vif->type == NL80211_IFTYPE_AP) 627 smps_mode = IEEE80211_SMPS_OFF; 628 else 629 smps_mode = IEEE80211_SMPS_AUTOMATIC; 630 631 mvmvif = iwl_mvm_vif_from_mac80211(vif); 632 mvmvif->smps_requests[req_type] = smps_request; 633 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 634 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { 635 smps_mode = IEEE80211_SMPS_STATIC; 636 break; 637 } 638 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 639 smps_mode = IEEE80211_SMPS_DYNAMIC; 640 } 641 642 ieee80211_request_smps(vif, smps_mode); 643} 644 645static void iwl_mvm_diversity_iter(void *_data, u8 *mac, 646 struct ieee80211_vif *vif) 647{ 648 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 649 bool *result = _data; 650 int i; 651 652 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 653 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || 654 mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 655 *result = false; 656 } 657} 658 659bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) 660{ 661 bool result = true; 662 663 lockdep_assert_held(&mvm->mutex); 664 665 if (num_of_ant(mvm->fw->valid_rx_ant) == 1) 666 return false; 667 668 if (!mvm->cfg->rx_with_siso_diversity) 669 return false; 670 671 ieee80211_iterate_active_interfaces_atomic( 672 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 673 iwl_mvm_diversity_iter, &result); 674 675 return result; 676} 677 678int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 679 bool value) 680{ 681 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 682 int res; 683 684 lockdep_assert_held(&mvm->mutex); 685 686 if (mvmvif->low_latency == value) 687 return 0; 688 689 mvmvif->low_latency = value; 690 691 res = iwl_mvm_update_quotas(mvm, NULL); 692 if (res) 693 return res; 694 695 iwl_mvm_bt_coex_vif_change(mvm); 696 697 return iwl_mvm_power_update_mac(mvm); 698} 699 700static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) 701{ 702 bool *result = _data; 703 704 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) 705 *result = true; 706} 707 708bool iwl_mvm_low_latency(struct iwl_mvm *mvm) 709{ 710 bool result = false; 711 712 ieee80211_iterate_active_interfaces_atomic( 713 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 714 iwl_mvm_ll_iter, &result); 715 716 return result; 717} 718 719static void iwl_mvm_idle_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) 720{ 721 bool *idle = _data; 722 723 if (!vif->bss_conf.idle) 724 *idle = false; 725} 726 727bool iwl_mvm_is_idle(struct iwl_mvm *mvm) 728{ 729 bool idle = true; 730 731 ieee80211_iterate_active_interfaces_atomic( 732 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 733 iwl_mvm_idle_iter, &idle); 734 735 return idle; 736} 737