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, 2018 - 2020 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING. 23 * 24 * Contact Information: 25 * Intel Linux Wireless <linuxwifi@intel.com> 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27 * 28 * BSD LICENSE 29 * 30 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation. All rights reserved. 31 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 32 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 39 * * Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * * Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in 43 * the documentation and/or other materials provided with the 44 * distribution. 45 * * Neither the name Intel Corporation nor the names of its 46 * contributors may be used to endorse or promote products derived 47 * from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 * 61 *****************************************************************************/ 62#include <linux/module.h> 63#include <linux/vmalloc.h> 64#include <net/mac80211.h> 65 66#include "fw/notif-wait.h" 67#include "iwl-trans.h" 68#include "iwl-op-mode.h" 69#include "fw/img.h" 70#include "iwl-debug.h" 71#include "iwl-drv.h" 72#include "iwl-modparams.h" 73#include "mvm.h" 74#include "iwl-phy-db.h" 75#include "iwl-eeprom-parse.h" 76#include "iwl-csr.h" 77#include "iwl-io.h" 78#include "iwl-prph.h" 79#include "rs.h" 80#include "fw/api/scan.h" 81#include "time-event.h" 82#include "fw-api.h" 83#include "fw/acpi.h" 84 85#define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 86MODULE_DESCRIPTION(DRV_DESCRIPTION); 87MODULE_AUTHOR(DRV_AUTHOR); 88MODULE_LICENSE("GPL"); 89 90static const struct iwl_op_mode_ops iwl_mvm_ops; 91static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 92 93struct iwl_mvm_mod_params iwlmvm_mod_params = { 94 .power_scheme = IWL_POWER_SCHEME_BPS, 95 /* rest of fields are 0 by default */ 96}; 97 98module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 99MODULE_PARM_DESC(init_dbg, 100 "set to true to debug an ASSERT in INIT fw (default: false"); 101module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 102MODULE_PARM_DESC(power_scheme, 103 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 104 105/* 106 * module init and exit functions 107 */ 108static int __init iwl_mvm_init(void) 109{ 110 int ret; 111 112 ret = iwl_mvm_rate_control_register(); 113 if (ret) { 114 pr_err("Unable to register rate control algorithm: %d\n", ret); 115 return ret; 116 } 117 118 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 119 if (ret) 120 pr_err("Unable to register MVM op_mode: %d\n", ret); 121 122 return ret; 123} 124module_init(iwl_mvm_init); 125 126static void __exit iwl_mvm_exit(void) 127{ 128 iwl_opmode_deregister("iwlmvm"); 129 iwl_mvm_rate_control_unregister(); 130} 131module_exit(iwl_mvm_exit); 132 133static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 134{ 135 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 136 struct iwl_trans_debug *dbg = &mvm->trans->dbg; 137 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 138 u32 reg_val = 0; 139 u32 phy_config = iwl_mvm_get_phy_config(mvm); 140 141 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 142 FW_PHY_CFG_RADIO_TYPE_POS; 143 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 144 FW_PHY_CFG_RADIO_STEP_POS; 145 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 146 FW_PHY_CFG_RADIO_DASH_POS; 147 148 /* SKU control */ 149 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) << 150 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP; 151 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) << 152 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH; 153 154 /* radio configuration */ 155 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 156 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 157 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 158 159 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 160 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 161 162 /* 163 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 164 * sampling, and shouldn't be set to any non-zero value. 165 * The same is supposed to be true of the other HW, but unsetting 166 * them (such as the 7260) causes automatic tests to fail on seemingly 167 * unrelated errors. Need to further investigate this, but for now 168 * we'll separate cases. 169 */ 170 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 171 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 172 173 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt) || 174 (iwl_trans_dbg_ini_valid(mvm->trans) && 175 dbg->fw_mon_cfg[IWL_FW_INI_ALLOCATION_ID_INTERNAL].buf_location) 176 ) 177 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 178 179 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 180 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | 181 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | 182 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 183 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 184 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 185 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 186 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 187 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 188 reg_val); 189 190 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 191 radio_cfg_step, radio_cfg_dash); 192 193 /* 194 * W/A : NIC is stuck in a reset state after Early PCIe power off 195 * (PCIe power is lost before PERST# is asserted), causing ME FW 196 * to lose ownership and not being able to obtain it back. 197 */ 198 if (!mvm->trans->cfg->apmg_not_supported) 199 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 200 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 201 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 202} 203 204/** 205 * enum iwl_rx_handler_context context for Rx handler 206 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 207 * which can't acquire mvm->mutex. 208 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 209 * (and only in this case!), it should be set as ASYNC. In that case, 210 * it will be called from a worker with mvm->mutex held. 211 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 212 * mutex itself, it will be called from a worker without mvm->mutex held. 213 */ 214enum iwl_rx_handler_context { 215 RX_HANDLER_SYNC, 216 RX_HANDLER_ASYNC_LOCKED, 217 RX_HANDLER_ASYNC_UNLOCKED, 218}; 219 220/** 221 * struct iwl_rx_handlers handler for FW notification 222 * @cmd_id: command id 223 * @context: see &iwl_rx_handler_context 224 * @fn: the function is called when notification is received 225 */ 226struct iwl_rx_handlers { 227 u16 cmd_id; 228 enum iwl_rx_handler_context context; 229 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 230}; 231 232#define RX_HANDLER(_cmd_id, _fn, _context) \ 233 { .cmd_id = _cmd_id, .fn = _fn, .context = _context } 234#define RX_HANDLER_GRP(_grp, _cmd, _fn, _context) \ 235 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context } 236 237/* 238 * Handlers for fw notifications 239 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 240 * This list should be in order of frequency for performance purposes. 241 * 242 * The handler can be one from three contexts, see &iwl_rx_handler_context 243 */ 244static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 245 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC), 246 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC), 247 248 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 249 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC), 250 251 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 252 RX_HANDLER_ASYNC_LOCKED), 253 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 254 RX_HANDLER_ASYNC_LOCKED), 255 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 256 RX_HANDLER_ASYNC_LOCKED), 257 258 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 259 iwl_mvm_window_status_notif, RX_HANDLER_SYNC), 260 261 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 262 RX_HANDLER_SYNC), 263 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 264 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC), 265 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 266 RX_HANDLER_ASYNC_LOCKED), 267 268 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC), 269 270 RX_HANDLER(SCAN_ITERATION_COMPLETE, 271 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC), 272 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 273 iwl_mvm_rx_lmac_scan_complete_notif, 274 RX_HANDLER_ASYNC_LOCKED), 275 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found, 276 RX_HANDLER_SYNC), 277 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 278 RX_HANDLER_ASYNC_LOCKED), 279 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 280 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC), 281 282 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, 283 RX_HANDLER_SYNC), 284 285 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 286 RX_HANDLER_SYNC), 287 288 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC), 289 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 290 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC), 291 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 292 RX_HANDLER_ASYNC_LOCKED), 293 RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 294 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 295 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 296 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC), 297 298 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 299 RX_HANDLER_ASYNC_LOCKED), 300 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 301 RX_HANDLER_SYNC), 302 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 303 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED), 304 305 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 306 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 307 RX_HANDLER_GRP(LOCATION_GROUP, TOF_LC_NOTIF, 308 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 309 310 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 311 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC), 312 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 313 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC), 314 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 315 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC), 316 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 317 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC), 318 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 319 iwl_mvm_probe_resp_data_notif, 320 RX_HANDLER_ASYNC_LOCKED), 321 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_NOA_NOTIF, 322 iwl_mvm_channel_switch_noa_notif, 323 RX_HANDLER_SYNC), 324}; 325#undef RX_HANDLER 326#undef RX_HANDLER_GRP 327 328/* Please keep this array *SORTED* by hex value. 329 * Access is done through binary search 330 */ 331static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 332 HCMD_NAME(UCODE_ALIVE_NTFY), 333 HCMD_NAME(REPLY_ERROR), 334 HCMD_NAME(ECHO_CMD), 335 HCMD_NAME(INIT_COMPLETE_NOTIF), 336 HCMD_NAME(PHY_CONTEXT_CMD), 337 HCMD_NAME(DBG_CFG), 338 HCMD_NAME(SCAN_CFG_CMD), 339 HCMD_NAME(SCAN_REQ_UMAC), 340 HCMD_NAME(SCAN_ABORT_UMAC), 341 HCMD_NAME(SCAN_COMPLETE_UMAC), 342 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 343 HCMD_NAME(ADD_STA_KEY), 344 HCMD_NAME(ADD_STA), 345 HCMD_NAME(REMOVE_STA), 346 HCMD_NAME(FW_GET_ITEM_CMD), 347 HCMD_NAME(TX_CMD), 348 HCMD_NAME(SCD_QUEUE_CFG), 349 HCMD_NAME(TXPATH_FLUSH), 350 HCMD_NAME(MGMT_MCAST_KEY), 351 HCMD_NAME(WEP_KEY), 352 HCMD_NAME(SHARED_MEM_CFG), 353 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 354 HCMD_NAME(MAC_CONTEXT_CMD), 355 HCMD_NAME(TIME_EVENT_CMD), 356 HCMD_NAME(TIME_EVENT_NOTIFICATION), 357 HCMD_NAME(BINDING_CONTEXT_CMD), 358 HCMD_NAME(TIME_QUOTA_CMD), 359 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 360 HCMD_NAME(LEDS_CMD), 361 HCMD_NAME(LQ_CMD), 362 HCMD_NAME(FW_PAGING_BLOCK_CMD), 363 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 364 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 365 HCMD_NAME(HOT_SPOT_CMD), 366 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 367 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 368 HCMD_NAME(BT_COEX_CI), 369 HCMD_NAME(PHY_CONFIGURATION_CMD), 370 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 371 HCMD_NAME(PHY_DB_CMD), 372 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 373 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 374 HCMD_NAME(POWER_TABLE_CMD), 375 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 376 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 377 HCMD_NAME(DC2DC_CONFIG_CMD), 378 HCMD_NAME(NVM_ACCESS_CMD), 379 HCMD_NAME(BEACON_NOTIFICATION), 380 HCMD_NAME(BEACON_TEMPLATE_CMD), 381 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 382 HCMD_NAME(BT_CONFIG), 383 HCMD_NAME(STATISTICS_CMD), 384 HCMD_NAME(STATISTICS_NOTIFICATION), 385 HCMD_NAME(EOSP_NOTIFICATION), 386 HCMD_NAME(REDUCE_TX_POWER_CMD), 387 HCMD_NAME(CARD_STATE_NOTIFICATION), 388 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 389 HCMD_NAME(TDLS_CONFIG_CMD), 390 HCMD_NAME(MAC_PM_POWER_TABLE), 391 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 392 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 393 HCMD_NAME(RSS_CONFIG_CMD), 394 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 395 HCMD_NAME(REPLY_RX_PHY_CMD), 396 HCMD_NAME(REPLY_RX_MPDU_CMD), 397 HCMD_NAME(BAR_FRAME_RELEASE), 398 HCMD_NAME(FRAME_RELEASE), 399 HCMD_NAME(BA_NOTIF), 400 HCMD_NAME(MCC_UPDATE_CMD), 401 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 402 HCMD_NAME(MARKER_CMD), 403 HCMD_NAME(BT_PROFILE_NOTIFICATION), 404 HCMD_NAME(BCAST_FILTER_CMD), 405 HCMD_NAME(MCAST_FILTER_CMD), 406 HCMD_NAME(REPLY_SF_CFG_CMD), 407 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 408 HCMD_NAME(D3_CONFIG_CMD), 409 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 410 HCMD_NAME(OFFLOADS_QUERY_CMD), 411 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD), 412 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 413 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 414 HCMD_NAME(WOWLAN_PATTERNS), 415 HCMD_NAME(WOWLAN_CONFIGURATION), 416 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 417 HCMD_NAME(WOWLAN_TKIP_PARAM), 418 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 419 HCMD_NAME(WOWLAN_GET_STATUSES), 420 HCMD_NAME(SCAN_ITERATION_COMPLETE), 421 HCMD_NAME(D0I3_END_CMD), 422 HCMD_NAME(LTR_CONFIG), 423 HCMD_NAME(LDBG_CONFIG_CMD), 424}; 425 426/* Please keep this array *SORTED* by hex value. 427 * Access is done through binary search 428 */ 429static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 430 HCMD_NAME(SHARED_MEM_CFG_CMD), 431 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 432 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 433}; 434 435/* Please keep this array *SORTED* by hex value. 436 * Access is done through binary search 437 */ 438static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 439 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 440 HCMD_NAME(SESSION_PROTECTION_CMD), 441 HCMD_NAME(SESSION_PROTECTION_NOTIF), 442 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF), 443}; 444 445/* Please keep this array *SORTED* by hex value. 446 * Access is done through binary search 447 */ 448static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 449 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 450 HCMD_NAME(CTDP_CONFIG_CMD), 451 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 452 HCMD_NAME(GEO_TX_POWER_LIMIT), 453 HCMD_NAME(CT_KILL_NOTIFICATION), 454 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 455}; 456 457/* Please keep this array *SORTED* by hex value. 458 * Access is done through binary search 459 */ 460static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 461 HCMD_NAME(DQA_ENABLE_CMD), 462 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 463 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 464 HCMD_NAME(STA_HE_CTXT_CMD), 465 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 466 HCMD_NAME(TLC_MNG_CONFIG_CMD), 467 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 468 HCMD_NAME(STA_PM_NOTIF), 469 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 470 HCMD_NAME(RX_QUEUES_NOTIFICATION), 471}; 472 473/* Please keep this array *SORTED* by hex value. 474 * Access is done through binary search 475 */ 476static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 477 HCMD_NAME(TOF_RANGE_REQ_CMD), 478 HCMD_NAME(TOF_CONFIG_CMD), 479 HCMD_NAME(TOF_RANGE_ABORT_CMD), 480 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 481 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 482 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 483 HCMD_NAME(TOF_LC_NOTIF), 484 HCMD_NAME(TOF_RESPONDER_STATS), 485 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 486 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 487}; 488 489/* Please keep this array *SORTED* by hex value. 490 * Access is done through binary search 491 */ 492static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 493 HCMD_NAME(STORED_BEACON_NTF), 494}; 495 496/* Please keep this array *SORTED* by hex value. 497 * Access is done through binary search 498 */ 499static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 500 HCMD_NAME(NVM_ACCESS_COMPLETE), 501 HCMD_NAME(NVM_GET_INFO), 502 HCMD_NAME(TAS_CONFIG), 503}; 504 505static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 506 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 507 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 508 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 509 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 510 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 511 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 512 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 513 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 514 [REGULATORY_AND_NVM_GROUP] = 515 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 516}; 517 518/* this forward declaration can avoid to export the function */ 519static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 520 521static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 522{ 523 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 524 u64 dflt_pwr_limit; 525 526 if (!backoff) 527 return 0; 528 529 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 530 531 while (backoff->pwr) { 532 if (dflt_pwr_limit >= backoff->pwr) 533 return backoff->backoff; 534 535 backoff++; 536 } 537 538 return 0; 539} 540 541static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 542{ 543 struct iwl_mvm *mvm = 544 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 545 struct ieee80211_vif *tx_blocked_vif; 546 struct iwl_mvm_vif *mvmvif; 547 548 mutex_lock(&mvm->mutex); 549 550 tx_blocked_vif = 551 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 552 lockdep_is_held(&mvm->mutex)); 553 554 if (!tx_blocked_vif) 555 goto unlock; 556 557 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 558 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 559 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 560unlock: 561 mutex_unlock(&mvm->mutex); 562} 563 564static int iwl_mvm_fwrt_dump_start(void *ctx) 565{ 566 struct iwl_mvm *mvm = ctx; 567 568 mutex_lock(&mvm->mutex); 569 570 return 0; 571} 572 573static void iwl_mvm_fwrt_dump_end(void *ctx) 574{ 575 struct iwl_mvm *mvm = ctx; 576 577 mutex_unlock(&mvm->mutex); 578} 579 580static bool iwl_mvm_fwrt_fw_running(void *ctx) 581{ 582 return iwl_mvm_firmware_running(ctx); 583} 584 585static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 586{ 587 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 588 int ret; 589 590 mutex_lock(&mvm->mutex); 591 ret = iwl_mvm_send_cmd(mvm, host_cmd); 592 mutex_unlock(&mvm->mutex); 593 594 return ret; 595} 596 597static bool iwl_mvm_d3_debug_enable(void *ctx) 598{ 599 return IWL_MVM_D3_DEBUG; 600} 601 602static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 603 .dump_start = iwl_mvm_fwrt_dump_start, 604 .dump_end = iwl_mvm_fwrt_dump_end, 605 .fw_running = iwl_mvm_fwrt_fw_running, 606 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 607 .d3_debug_enable = iwl_mvm_d3_debug_enable, 608}; 609 610static struct iwl_op_mode * 611iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 612 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 613{ 614 struct ieee80211_hw *hw; 615 struct iwl_op_mode *op_mode; 616 struct iwl_mvm *mvm; 617 struct iwl_trans_config trans_cfg = {}; 618 static const u8 no_reclaim_cmds[] = { 619 TX_CMD, 620 }; 621 int err, scan_size; 622 u32 min_backoff; 623 enum iwl_amsdu_size rb_size_default; 624 625 /* 626 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 627 * index all over the driver - check that its value corresponds to the 628 * array size. 629 */ 630 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 631 IWL_MVM_STATION_COUNT_MAX); 632 633 /******************************** 634 * 1. Allocating and configuring HW data 635 ********************************/ 636 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 637 sizeof(struct iwl_mvm), 638 &iwl_mvm_hw_ops); 639 if (!hw) 640 return NULL; 641 642 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 643 644 if (cfg->max_tx_agg_size) 645 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 646 else 647 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 648 649 op_mode = hw->priv; 650 651 mvm = IWL_OP_MODE_GET_MVM(op_mode); 652 mvm->dev = trans->dev; 653 mvm->trans = trans; 654 mvm->cfg = cfg; 655 mvm->fw = fw; 656 mvm->hw = hw; 657 658 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 659 dbgfs_dir); 660 661 mvm->init_status = 0; 662 663 if (iwl_mvm_has_new_rx_api(mvm)) { 664 op_mode->ops = &iwl_mvm_ops_mq; 665 trans->rx_mpdu_cmd_hdr_size = 666 (trans->trans_cfg->device_family >= 667 IWL_DEVICE_FAMILY_AX210) ? 668 sizeof(struct iwl_rx_mpdu_desc) : 669 IWL_RX_DESC_SIZE_V1; 670 } else { 671 op_mode->ops = &iwl_mvm_ops; 672 trans->rx_mpdu_cmd_hdr_size = 673 sizeof(struct iwl_rx_mpdu_res_start); 674 675 if (WARN_ON(trans->num_rx_queues > 1)) 676 goto out_free; 677 } 678 679 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 680 681 if (iwl_mvm_has_new_tx_api(mvm)) { 682 /* 683 * If we have the new TX/queue allocation API initialize them 684 * all to invalid numbers. We'll rewrite the ones that we need 685 * later, but that doesn't happen for all of them all of the 686 * time (e.g. P2P Device is optional), and if a dynamic queue 687 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 688 * iwl_mvm_is_static_queue() erroneously returns true, and we 689 * might have things getting stuck. 690 */ 691 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 692 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 693 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 694 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 695 } else { 696 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 697 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 698 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 699 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 700 } 701 702 mvm->sf_state = SF_UNINIT; 703 if (iwl_mvm_has_unified_ucode(mvm)) 704 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 705 else 706 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 707 mvm->drop_bcn_ap_mode = true; 708 709 mutex_init(&mvm->mutex); 710 spin_lock_init(&mvm->async_handlers_lock); 711 INIT_LIST_HEAD(&mvm->time_event_list); 712 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 713 INIT_LIST_HEAD(&mvm->async_handlers_list); 714 spin_lock_init(&mvm->time_event_lock); 715 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 716 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 717 INIT_LIST_HEAD(&mvm->resp_pasn_list); 718 719 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 720 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 721 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 722 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 723 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 724 INIT_LIST_HEAD(&mvm->add_stream_txqs); 725 726 init_waitqueue_head(&mvm->rx_sync_waitq); 727 728 atomic_set(&mvm->queue_sync_counter, 0); 729 730 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 731 732 spin_lock_init(&mvm->tcm.lock); 733 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 734 mvm->tcm.ts = jiffies; 735 mvm->tcm.ll_ts = jiffies; 736 mvm->tcm.uapsd_nonagg_ts = jiffies; 737 738 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 739 740 mvm->cmd_ver.d0i3_resp = 741 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 742 0); 743 /* we only support version 1 */ 744 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 745 goto out_free; 746 747 mvm->cmd_ver.range_resp = 748 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 749 TOF_RANGE_RESPONSE_NOTIF, 5); 750 /* we only support up to version 8 */ 751 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 8)) 752 goto out_free; 753 754 /* 755 * Populate the state variables that the transport layer needs 756 * to know about. 757 */ 758 trans_cfg.op_mode = op_mode; 759 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 760 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 761 762 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 763 rb_size_default = IWL_AMSDU_2K; 764 else 765 rb_size_default = IWL_AMSDU_4K; 766 767 switch (iwlwifi_mod_params.amsdu_size) { 768 case IWL_AMSDU_DEF: 769 trans_cfg.rx_buf_size = rb_size_default; 770 break; 771 case IWL_AMSDU_4K: 772 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 773 break; 774 case IWL_AMSDU_8K: 775 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 776 break; 777 case IWL_AMSDU_12K: 778 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 779 break; 780 default: 781 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 782 iwlwifi_mod_params.amsdu_size); 783 trans_cfg.rx_buf_size = rb_size_default; 784 } 785 786 trans->wide_cmd_header = true; 787 trans_cfg.bc_table_dword = 788 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 789 790 trans_cfg.command_groups = iwl_mvm_groups; 791 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 792 793 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 794 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 795 trans_cfg.scd_set_active = true; 796 797 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 798 driver_data[2]); 799 800 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD; 801 802 /* Set a short watchdog for the command queue */ 803 trans_cfg.cmd_q_wdg_timeout = 804 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 805 806 snprintf(mvm->hw->wiphy->fw_version, 807 sizeof(mvm->hw->wiphy->fw_version), 808 "%s", fw->fw_version); 809 810 /* Configure transport layer */ 811 iwl_trans_configure(mvm->trans, &trans_cfg); 812 813 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 814 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 815 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 816 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 817 sizeof(trans->dbg.conf_tlv)); 818 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 819 820 trans->iml = mvm->fw->iml; 821 trans->iml_len = mvm->fw->iml_len; 822 823 /* set up notification wait support */ 824 iwl_notification_wait_init(&mvm->notif_wait); 825 826 /* Init phy db */ 827 mvm->phy_db = iwl_phy_db_init(trans); 828 if (!mvm->phy_db) { 829 IWL_ERR(mvm, "Cannot init phy_db\n"); 830 goto out_free; 831 } 832 833 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 834 mvm->trans->name, mvm->trans->hw_rev); 835 836 if (iwlwifi_mod_params.nvm_file) 837 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 838 else 839 IWL_DEBUG_EEPROM(mvm->trans->dev, 840 "working without external nvm file\n"); 841 842 err = iwl_trans_start_hw(mvm->trans); 843 if (err) 844 goto out_free; 845 846 mutex_lock(&mvm->mutex); 847 err = iwl_run_init_mvm_ucode(mvm, true); 848 if (err && err != -ERFKILL) 849 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 850 if (!iwlmvm_mod_params.init_dbg || !err) 851 iwl_mvm_stop_device(mvm); 852 mutex_unlock(&mvm->mutex); 853 if (err < 0) { 854 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); 855 goto out_free; 856 } 857 858 scan_size = iwl_mvm_scan_size(mvm); 859 860 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 861 if (!mvm->scan_cmd) 862 goto out_free; 863 864 /* invalidate ids to prevent accidental removal of sta_id 0 */ 865 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 866 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 867 868 /* Set EBS as successful as long as not stated otherwise by the FW. */ 869 mvm->last_ebs_successful = true; 870 871 err = iwl_mvm_mac_setup_register(mvm); 872 if (err) 873 goto out_free; 874 mvm->hw_registered = true; 875 876 min_backoff = iwl_mvm_min_backoff(mvm); 877 iwl_mvm_thermal_initialize(mvm, min_backoff); 878 879 iwl_mvm_dbgfs_register(mvm, dbgfs_dir); 880 881 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 882 memset(&mvm->rx_stats_v3, 0, 883 sizeof(struct mvm_statistics_rx_v3)); 884 else 885 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 886 887 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 888 889 return op_mode; 890 891 out_free: 892 iwl_fw_flush_dumps(&mvm->fwrt); 893 iwl_fw_runtime_free(&mvm->fwrt); 894 895 if (iwlmvm_mod_params.init_dbg) 896 return op_mode; 897 iwl_phy_db_free(mvm->phy_db); 898 kfree(mvm->scan_cmd); 899 iwl_trans_op_mode_leave(trans); 900 901 ieee80211_free_hw(mvm->hw); 902 return NULL; 903} 904 905static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 906{ 907 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 908 int i; 909 910 iwl_mvm_leds_exit(mvm); 911 912 iwl_mvm_thermal_exit(mvm); 913 914 ieee80211_unregister_hw(mvm->hw); 915 916 kfree(mvm->scan_cmd); 917 kfree(mvm->mcast_filter_cmd); 918 mvm->mcast_filter_cmd = NULL; 919 920 kfree(mvm->error_recovery_buf); 921 mvm->error_recovery_buf = NULL; 922 923 iwl_trans_op_mode_leave(mvm->trans); 924 925 iwl_phy_db_free(mvm->phy_db); 926 mvm->phy_db = NULL; 927 928 kfree(mvm->nvm_data); 929 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 930 kfree(mvm->nvm_sections[i].data); 931 932 cancel_delayed_work_sync(&mvm->tcm.work); 933 934 iwl_fw_runtime_free(&mvm->fwrt); 935 mutex_destroy(&mvm->mutex); 936 937 ieee80211_free_hw(mvm->hw); 938} 939 940struct iwl_async_handler_entry { 941 struct list_head list; 942 struct iwl_rx_cmd_buffer rxb; 943 enum iwl_rx_handler_context context; 944 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 945}; 946 947void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 948{ 949 struct iwl_async_handler_entry *entry, *tmp; 950 951 spin_lock_bh(&mvm->async_handlers_lock); 952 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 953 iwl_free_rxb(&entry->rxb); 954 list_del(&entry->list); 955 kfree(entry); 956 } 957 spin_unlock_bh(&mvm->async_handlers_lock); 958} 959 960static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 961{ 962 struct iwl_mvm *mvm = 963 container_of(wk, struct iwl_mvm, async_handlers_wk); 964 struct iwl_async_handler_entry *entry, *tmp; 965 LIST_HEAD(local_list); 966 967 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 968 969 /* 970 * Sync with Rx path with a lock. Remove all the entries from this list, 971 * add them to a local one (lock free), and then handle them. 972 */ 973 spin_lock_bh(&mvm->async_handlers_lock); 974 list_splice_init(&mvm->async_handlers_list, &local_list); 975 spin_unlock_bh(&mvm->async_handlers_lock); 976 977 list_for_each_entry_safe(entry, tmp, &local_list, list) { 978 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 979 mutex_lock(&mvm->mutex); 980 entry->fn(mvm, &entry->rxb); 981 iwl_free_rxb(&entry->rxb); 982 list_del(&entry->list); 983 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 984 mutex_unlock(&mvm->mutex); 985 kfree(entry); 986 } 987} 988 989static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 990 struct iwl_rx_packet *pkt) 991{ 992 struct iwl_fw_dbg_trigger_tlv *trig; 993 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 994 int i; 995 996 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 997 FW_DBG_TRIGGER_FW_NOTIF); 998 if (!trig) 999 return; 1000 1001 cmds_trig = (void *)trig->data; 1002 1003 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1004 /* don't collect on CMD 0 */ 1005 if (!cmds_trig->cmds[i].cmd_id) 1006 break; 1007 1008 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1009 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1010 continue; 1011 1012 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1013 "CMD 0x%02x.%02x received", 1014 pkt->hdr.group_id, pkt->hdr.cmd); 1015 break; 1016 } 1017} 1018 1019static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1020 struct iwl_rx_cmd_buffer *rxb, 1021 struct iwl_rx_packet *pkt) 1022{ 1023 int i; 1024 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1025 1026 iwl_dbg_tlv_time_point(&mvm->fwrt, 1027 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1028 iwl_mvm_rx_check_trigger(mvm, pkt); 1029 1030 /* 1031 * Do the notification wait before RX handlers so 1032 * even if the RX handler consumes the RXB we have 1033 * access to it in the notification wait entry. 1034 */ 1035 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1036 1037 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1038 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1039 struct iwl_async_handler_entry *entry; 1040 1041 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1042 continue; 1043 1044 if (rx_h->context == RX_HANDLER_SYNC) { 1045 rx_h->fn(mvm, rxb); 1046 return; 1047 } 1048 1049 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1050 /* we can't do much... */ 1051 if (!entry) 1052 return; 1053 1054 entry->rxb._page = rxb_steal_page(rxb); 1055 entry->rxb._offset = rxb->_offset; 1056 entry->rxb._rx_page_order = rxb->_rx_page_order; 1057 entry->fn = rx_h->fn; 1058 entry->context = rx_h->context; 1059 spin_lock(&mvm->async_handlers_lock); 1060 list_add_tail(&entry->list, &mvm->async_handlers_list); 1061 spin_unlock(&mvm->async_handlers_lock); 1062 schedule_work(&mvm->async_handlers_wk); 1063 break; 1064 } 1065} 1066 1067static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1068 struct napi_struct *napi, 1069 struct iwl_rx_cmd_buffer *rxb) 1070{ 1071 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1072 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1073 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1074 1075 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1076 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1077 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1078 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1079 else 1080 iwl_mvm_rx_common(mvm, rxb, pkt); 1081} 1082 1083static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1084 struct napi_struct *napi, 1085 struct iwl_rx_cmd_buffer *rxb) 1086{ 1087 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1088 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1089 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1090 1091 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1092 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1093 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1094 RX_QUEUES_NOTIFICATION))) 1095 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1096 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1097 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1098 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1099 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1100 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1101 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1102 else 1103 iwl_mvm_rx_common(mvm, rxb, pkt); 1104} 1105 1106static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1107 const struct iwl_device_cmd *cmd) 1108{ 1109 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1110 1111 /* 1112 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1113 * commands that need to block the Tx queues. 1114 */ 1115 iwl_trans_block_txq_ptrs(mvm->trans, false); 1116} 1117 1118static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1119{ 1120 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1121 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1122} 1123 1124static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1125 int hw_queue, bool start) 1126{ 1127 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1128 struct ieee80211_sta *sta; 1129 struct ieee80211_txq *txq; 1130 struct iwl_mvm_txq *mvmtxq; 1131 int i; 1132 unsigned long tid_bitmap; 1133 struct iwl_mvm_sta *mvmsta; 1134 u8 sta_id; 1135 1136 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1137 mvm->tvqm_info[hw_queue].sta_id : 1138 mvm->queue_info[hw_queue].ra_sta_id; 1139 1140 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1141 return; 1142 1143 rcu_read_lock(); 1144 1145 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1146 if (IS_ERR_OR_NULL(sta)) 1147 goto out; 1148 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1149 1150 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1151 if (!start) 1152 ieee80211_stop_queues(mvm->hw); 1153 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1154 ieee80211_wake_queues(mvm->hw); 1155 1156 goto out; 1157 } 1158 1159 if (iwl_mvm_has_new_tx_api(mvm)) { 1160 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1161 1162 tid_bitmap = BIT(tid); 1163 } else { 1164 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1165 } 1166 1167 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1168 int tid = i; 1169 1170 if (tid == IWL_MAX_TID_COUNT) 1171 tid = IEEE80211_NUM_TIDS; 1172 1173 txq = sta->txq[tid]; 1174 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1175 mvmtxq->stopped = !start; 1176 1177 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) { 1178 local_bh_disable(); 1179 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1180 local_bh_enable(); 1181 } 1182 } 1183 1184out: 1185 rcu_read_unlock(); 1186} 1187 1188static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1189{ 1190 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1191} 1192 1193static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1194{ 1195 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1196} 1197 1198static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1199{ 1200 bool state = iwl_mvm_is_radio_killed(mvm); 1201 1202 if (state) 1203 wake_up(&mvm->rx_sync_waitq); 1204 1205 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1206} 1207 1208void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1209{ 1210 if (state) 1211 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1212 else 1213 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1214 1215 iwl_mvm_set_rfkill_state(mvm); 1216} 1217 1218static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1219{ 1220 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1221 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1222 bool unified = iwl_mvm_has_unified_ucode(mvm); 1223 1224 if (state) 1225 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1226 else 1227 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1228 1229 iwl_mvm_set_rfkill_state(mvm); 1230 1231 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1232 if (rfkill_safe_init_done) 1233 iwl_abort_notification_waits(&mvm->notif_wait); 1234 1235 /* 1236 * Don't ask the transport to stop the firmware. We'll do it 1237 * after cfg80211 takes us down. 1238 */ 1239 if (unified) 1240 return false; 1241 1242 /* 1243 * Stop the device if we run OPERATIONAL firmware or if we are in the 1244 * middle of the calibrations. 1245 */ 1246 return state && rfkill_safe_init_done; 1247} 1248 1249static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1250{ 1251 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1252 struct ieee80211_tx_info *info; 1253 1254 info = IEEE80211_SKB_CB(skb); 1255 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1256 ieee80211_free_txskb(mvm->hw, skb); 1257} 1258 1259struct iwl_mvm_reprobe { 1260 struct device *dev; 1261 struct work_struct work; 1262}; 1263 1264static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1265{ 1266 struct iwl_mvm_reprobe *reprobe; 1267 1268 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1269 if (device_reprobe(reprobe->dev)) 1270 dev_err(reprobe->dev, "reprobe failed!\n"); 1271 put_device(reprobe->dev); 1272 kfree(reprobe); 1273 module_put(THIS_MODULE); 1274} 1275 1276void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1277{ 1278 iwl_abort_notification_waits(&mvm->notif_wait); 1279 iwl_dbg_tlv_del_timers(mvm->trans); 1280 1281 /* 1282 * This is a bit racy, but worst case we tell mac80211 about 1283 * a stopped/aborted scan when that was already done which 1284 * is not a problem. It is necessary to abort any os scan 1285 * here because mac80211 requires having the scan cleared 1286 * before restarting. 1287 * We'll reset the scan_status to NONE in restart cleanup in 1288 * the next start() call from mac80211. If restart isn't called 1289 * (no fw restart) scan status will stay busy. 1290 */ 1291 iwl_mvm_report_scan_aborted(mvm); 1292 1293 /* 1294 * If we're restarting already, don't cycle restarts. 1295 * If INIT fw asserted, it will likely fail again. 1296 * If WoWLAN fw asserted, don't restart either, mac80211 1297 * can't recover this since we're already half suspended. 1298 */ 1299 if (!mvm->fw_restart && fw_error) { 1300 iwl_fw_error_collect(&mvm->fwrt); 1301 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1302 &mvm->status)) { 1303 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1304 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1305 struct iwl_mvm_reprobe *reprobe; 1306 1307 IWL_ERR(mvm, 1308 "Firmware error during reconfiguration - reprobe!\n"); 1309 1310 /* 1311 * get a module reference to avoid doing this while unloading 1312 * anyway and to avoid scheduling a work with code that's 1313 * being removed. 1314 */ 1315 if (!try_module_get(THIS_MODULE)) { 1316 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1317 return; 1318 } 1319 1320 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1321 if (!reprobe) { 1322 module_put(THIS_MODULE); 1323 return; 1324 } 1325 reprobe->dev = get_device(mvm->trans->dev); 1326 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1327 schedule_work(&reprobe->work); 1328 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1329 &mvm->status)) { 1330 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1331 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1332 mvm->hw_registered && 1333 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1334 if (mvm->fw->ucode_capa.error_log_size) { 1335 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1336 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1337 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1338 1339 if (recover_buf) { 1340 mvm->error_recovery_buf = recover_buf; 1341 iwl_trans_read_mem_bytes(mvm->trans, 1342 src_addr, 1343 recover_buf, 1344 src_size); 1345 } 1346 } 1347 1348 iwl_fw_error_collect(&mvm->fwrt); 1349 1350 if (fw_error && mvm->fw_restart > 0) 1351 mvm->fw_restart--; 1352 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1353 ieee80211_restart_hw(mvm->hw); 1354 } 1355} 1356 1357static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) 1358{ 1359 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1360 1361 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) 1362 iwl_mvm_dump_nic_error_log(mvm); 1363 1364 iwl_mvm_nic_restart(mvm, true); 1365} 1366 1367static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1368{ 1369 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1370 1371 WARN_ON(1); 1372 iwl_mvm_nic_restart(mvm, true); 1373} 1374 1375#define IWL_MVM_COMMON_OPS \ 1376 /* these could be differentiated */ \ 1377 .async_cb = iwl_mvm_async_cb, \ 1378 .queue_full = iwl_mvm_stop_sw_queue, \ 1379 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1380 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1381 .free_skb = iwl_mvm_free_skb, \ 1382 .nic_error = iwl_mvm_nic_error, \ 1383 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1384 .nic_config = iwl_mvm_nic_config, \ 1385 /* as we only register one, these MUST be common! */ \ 1386 .start = iwl_op_mode_mvm_start, \ 1387 .stop = iwl_op_mode_mvm_stop 1388 1389static const struct iwl_op_mode_ops iwl_mvm_ops = { 1390 IWL_MVM_COMMON_OPS, 1391 .rx = iwl_mvm_rx, 1392}; 1393 1394static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1395 struct napi_struct *napi, 1396 struct iwl_rx_cmd_buffer *rxb, 1397 unsigned int queue) 1398{ 1399 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1400 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1401 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1402 1403 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1404 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1405 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1406 RX_QUEUES_NOTIFICATION))) 1407 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1408 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1409 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1410} 1411 1412static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1413 IWL_MVM_COMMON_OPS, 1414 .rx = iwl_mvm_rx_mq, 1415 .rx_rss = iwl_mvm_rx_mq_rss, 1416}; 1417