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" 86 MODULE_DESCRIPTION(DRV_DESCRIPTION); 87 MODULE_AUTHOR(DRV_AUTHOR); 88 MODULE_LICENSE("GPL"); 89 90 static const struct iwl_op_mode_ops iwl_mvm_ops; 91 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 92 93 struct iwl_mvm_mod_params iwlmvm_mod_params = { 94 .power_scheme = IWL_POWER_SCHEME_BPS, 95 /* rest of fields are 0 by default */ 96 }; 97 98 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 99 MODULE_PARM_DESC(init_dbg, 100 "set to true to debug an ASSERT in INIT fw (default: false"); 101 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 102 MODULE_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 */ 108 static 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 } 124 module_init(iwl_mvm_init); 125 126 static void __exit iwl_mvm_exit(void) 127 { 128 iwl_opmode_deregister("iwlmvm"); 129 iwl_mvm_rate_control_unregister(); 130 } 131 module_exit(iwl_mvm_exit); 132 133 static 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 */ 214 enum 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 */ 226 struct 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 */ 244 static 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 }; 319 #undef RX_HANDLER 320 #undef RX_HANDLER_GRP 321 322 /* Please keep this array *SORTED* by hex value. 323 * Access is done through binary search 324 */ 325 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 326 HCMD_NAME(UCODE_ALIVE_NTFY), 327 HCMD_NAME(REPLY_ERROR), 328 HCMD_NAME(ECHO_CMD), 329 HCMD_NAME(INIT_COMPLETE_NOTIF), 330 HCMD_NAME(PHY_CONTEXT_CMD), 331 HCMD_NAME(DBG_CFG), 332 HCMD_NAME(SCAN_CFG_CMD), 333 HCMD_NAME(SCAN_REQ_UMAC), 334 HCMD_NAME(SCAN_ABORT_UMAC), 335 HCMD_NAME(SCAN_COMPLETE_UMAC), 336 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 337 HCMD_NAME(ADD_STA_KEY), 338 HCMD_NAME(ADD_STA), 339 HCMD_NAME(REMOVE_STA), 340 HCMD_NAME(FW_GET_ITEM_CMD), 341 HCMD_NAME(TX_CMD), 342 HCMD_NAME(SCD_QUEUE_CFG), 343 HCMD_NAME(TXPATH_FLUSH), 344 HCMD_NAME(MGMT_MCAST_KEY), 345 HCMD_NAME(WEP_KEY), 346 HCMD_NAME(SHARED_MEM_CFG), 347 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 348 HCMD_NAME(MAC_CONTEXT_CMD), 349 HCMD_NAME(TIME_EVENT_CMD), 350 HCMD_NAME(TIME_EVENT_NOTIFICATION), 351 HCMD_NAME(BINDING_CONTEXT_CMD), 352 HCMD_NAME(TIME_QUOTA_CMD), 353 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 354 HCMD_NAME(LEDS_CMD), 355 HCMD_NAME(LQ_CMD), 356 HCMD_NAME(FW_PAGING_BLOCK_CMD), 357 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 358 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 359 HCMD_NAME(HOT_SPOT_CMD), 360 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 361 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 362 HCMD_NAME(BT_COEX_CI), 363 HCMD_NAME(PHY_CONFIGURATION_CMD), 364 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 365 HCMD_NAME(PHY_DB_CMD), 366 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 367 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 368 HCMD_NAME(POWER_TABLE_CMD), 369 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 370 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 371 HCMD_NAME(DC2DC_CONFIG_CMD), 372 HCMD_NAME(NVM_ACCESS_CMD), 373 HCMD_NAME(BEACON_NOTIFICATION), 374 HCMD_NAME(BEACON_TEMPLATE_CMD), 375 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 376 HCMD_NAME(BT_CONFIG), 377 HCMD_NAME(STATISTICS_CMD), 378 HCMD_NAME(STATISTICS_NOTIFICATION), 379 HCMD_NAME(EOSP_NOTIFICATION), 380 HCMD_NAME(REDUCE_TX_POWER_CMD), 381 HCMD_NAME(CARD_STATE_NOTIFICATION), 382 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 383 HCMD_NAME(TDLS_CONFIG_CMD), 384 HCMD_NAME(MAC_PM_POWER_TABLE), 385 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 386 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 387 HCMD_NAME(RSS_CONFIG_CMD), 388 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 389 HCMD_NAME(REPLY_RX_PHY_CMD), 390 HCMD_NAME(REPLY_RX_MPDU_CMD), 391 HCMD_NAME(BAR_FRAME_RELEASE), 392 HCMD_NAME(FRAME_RELEASE), 393 HCMD_NAME(BA_NOTIF), 394 HCMD_NAME(MCC_UPDATE_CMD), 395 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 396 HCMD_NAME(MARKER_CMD), 397 HCMD_NAME(BT_PROFILE_NOTIFICATION), 398 HCMD_NAME(BCAST_FILTER_CMD), 399 HCMD_NAME(MCAST_FILTER_CMD), 400 HCMD_NAME(REPLY_SF_CFG_CMD), 401 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 402 HCMD_NAME(D3_CONFIG_CMD), 403 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 404 HCMD_NAME(OFFLOADS_QUERY_CMD), 405 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD), 406 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 407 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 408 HCMD_NAME(WOWLAN_PATTERNS), 409 HCMD_NAME(WOWLAN_CONFIGURATION), 410 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 411 HCMD_NAME(WOWLAN_TKIP_PARAM), 412 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 413 HCMD_NAME(WOWLAN_GET_STATUSES), 414 HCMD_NAME(SCAN_ITERATION_COMPLETE), 415 HCMD_NAME(D0I3_END_CMD), 416 HCMD_NAME(LTR_CONFIG), 417 HCMD_NAME(LDBG_CONFIG_CMD), 418 }; 419 420 /* Please keep this array *SORTED* by hex value. 421 * Access is done through binary search 422 */ 423 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 424 HCMD_NAME(SHARED_MEM_CFG_CMD), 425 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 426 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 427 }; 428 429 /* Please keep this array *SORTED* by hex value. 430 * Access is done through binary search 431 */ 432 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 433 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 434 HCMD_NAME(SESSION_PROTECTION_CMD), 435 HCMD_NAME(SESSION_PROTECTION_NOTIF), 436 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF), 437 }; 438 439 /* Please keep this array *SORTED* by hex value. 440 * Access is done through binary search 441 */ 442 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 443 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 444 HCMD_NAME(CTDP_CONFIG_CMD), 445 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 446 HCMD_NAME(GEO_TX_POWER_LIMIT), 447 HCMD_NAME(CT_KILL_NOTIFICATION), 448 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 449 }; 450 451 /* Please keep this array *SORTED* by hex value. 452 * Access is done through binary search 453 */ 454 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 455 HCMD_NAME(DQA_ENABLE_CMD), 456 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 457 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 458 HCMD_NAME(STA_HE_CTXT_CMD), 459 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 460 HCMD_NAME(TLC_MNG_CONFIG_CMD), 461 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 462 HCMD_NAME(STA_PM_NOTIF), 463 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 464 HCMD_NAME(RX_QUEUES_NOTIFICATION), 465 }; 466 467 /* Please keep this array *SORTED* by hex value. 468 * Access is done through binary search 469 */ 470 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 471 HCMD_NAME(TOF_RANGE_REQ_CMD), 472 HCMD_NAME(TOF_CONFIG_CMD), 473 HCMD_NAME(TOF_RANGE_ABORT_CMD), 474 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 475 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 476 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 477 HCMD_NAME(TOF_LC_NOTIF), 478 HCMD_NAME(TOF_RESPONDER_STATS), 479 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 480 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 481 }; 482 483 /* Please keep this array *SORTED* by hex value. 484 * Access is done through binary search 485 */ 486 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 487 HCMD_NAME(STORED_BEACON_NTF), 488 }; 489 490 /* Please keep this array *SORTED* by hex value. 491 * Access is done through binary search 492 */ 493 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 494 HCMD_NAME(NVM_ACCESS_COMPLETE), 495 HCMD_NAME(NVM_GET_INFO), 496 HCMD_NAME(TAS_CONFIG), 497 }; 498 499 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 500 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 501 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 502 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 503 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 504 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 505 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 506 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 507 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 508 [REGULATORY_AND_NVM_GROUP] = 509 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 510 }; 511 512 /* this forward declaration can avoid to export the function */ 513 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 514 515 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 516 { 517 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 518 u64 dflt_pwr_limit; 519 520 if (!backoff) 521 return 0; 522 523 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 524 525 while (backoff->pwr) { 526 if (dflt_pwr_limit >= backoff->pwr) 527 return backoff->backoff; 528 529 backoff++; 530 } 531 532 return 0; 533 } 534 535 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 536 { 537 struct iwl_mvm *mvm = 538 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 539 struct ieee80211_vif *tx_blocked_vif; 540 struct iwl_mvm_vif *mvmvif; 541 542 mutex_lock(&mvm->mutex); 543 544 tx_blocked_vif = 545 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 546 lockdep_is_held(&mvm->mutex)); 547 548 if (!tx_blocked_vif) 549 goto unlock; 550 551 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 552 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 553 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 554 unlock: 555 mutex_unlock(&mvm->mutex); 556 } 557 558 static int iwl_mvm_fwrt_dump_start(void *ctx) 559 { 560 struct iwl_mvm *mvm = ctx; 561 562 mutex_lock(&mvm->mutex); 563 564 return 0; 565 } 566 567 static void iwl_mvm_fwrt_dump_end(void *ctx) 568 { 569 struct iwl_mvm *mvm = ctx; 570 571 mutex_unlock(&mvm->mutex); 572 } 573 574 static bool iwl_mvm_fwrt_fw_running(void *ctx) 575 { 576 return iwl_mvm_firmware_running(ctx); 577 } 578 579 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 580 { 581 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 582 int ret; 583 584 mutex_lock(&mvm->mutex); 585 ret = iwl_mvm_send_cmd(mvm, host_cmd); 586 mutex_unlock(&mvm->mutex); 587 588 return ret; 589 } 590 591 static bool iwl_mvm_d3_debug_enable(void *ctx) 592 { 593 return IWL_MVM_D3_DEBUG; 594 } 595 596 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 597 .dump_start = iwl_mvm_fwrt_dump_start, 598 .dump_end = iwl_mvm_fwrt_dump_end, 599 .fw_running = iwl_mvm_fwrt_fw_running, 600 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 601 .d3_debug_enable = iwl_mvm_d3_debug_enable, 602 }; 603 604 static struct iwl_op_mode * 605 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 606 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 607 { 608 struct ieee80211_hw *hw; 609 struct iwl_op_mode *op_mode; 610 struct iwl_mvm *mvm; 611 struct iwl_trans_config trans_cfg = {}; 612 static const u8 no_reclaim_cmds[] = { 613 TX_CMD, 614 }; 615 int err, scan_size; 616 u32 min_backoff; 617 enum iwl_amsdu_size rb_size_default; 618 619 /* 620 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 621 * index all over the driver - check that its value corresponds to the 622 * array size. 623 */ 624 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 625 IWL_MVM_STATION_COUNT_MAX); 626 627 /******************************** 628 * 1. Allocating and configuring HW data 629 ********************************/ 630 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 631 sizeof(struct iwl_mvm), 632 &iwl_mvm_hw_ops); 633 if (!hw) 634 return NULL; 635 636 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 637 638 if (cfg->max_tx_agg_size) 639 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 640 else 641 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 642 643 op_mode = hw->priv; 644 645 mvm = IWL_OP_MODE_GET_MVM(op_mode); 646 mvm->dev = trans->dev; 647 mvm->trans = trans; 648 mvm->cfg = cfg; 649 mvm->fw = fw; 650 mvm->hw = hw; 651 652 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 653 dbgfs_dir); 654 655 mvm->init_status = 0; 656 657 if (iwl_mvm_has_new_rx_api(mvm)) { 658 op_mode->ops = &iwl_mvm_ops_mq; 659 trans->rx_mpdu_cmd_hdr_size = 660 (trans->trans_cfg->device_family >= 661 IWL_DEVICE_FAMILY_AX210) ? 662 sizeof(struct iwl_rx_mpdu_desc) : 663 IWL_RX_DESC_SIZE_V1; 664 } else { 665 op_mode->ops = &iwl_mvm_ops; 666 trans->rx_mpdu_cmd_hdr_size = 667 sizeof(struct iwl_rx_mpdu_res_start); 668 669 if (WARN_ON(trans->num_rx_queues > 1)) 670 goto out_free; 671 } 672 673 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 674 675 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 676 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 677 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 678 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 679 680 mvm->sf_state = SF_UNINIT; 681 if (iwl_mvm_has_unified_ucode(mvm)) 682 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 683 else 684 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 685 mvm->drop_bcn_ap_mode = true; 686 687 mutex_init(&mvm->mutex); 688 spin_lock_init(&mvm->async_handlers_lock); 689 INIT_LIST_HEAD(&mvm->time_event_list); 690 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 691 INIT_LIST_HEAD(&mvm->async_handlers_list); 692 spin_lock_init(&mvm->time_event_lock); 693 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 694 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 695 INIT_LIST_HEAD(&mvm->resp_pasn_list); 696 697 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 698 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 699 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 700 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 701 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 702 INIT_LIST_HEAD(&mvm->add_stream_txqs); 703 704 init_waitqueue_head(&mvm->rx_sync_waitq); 705 706 atomic_set(&mvm->queue_sync_counter, 0); 707 708 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 709 710 spin_lock_init(&mvm->tcm.lock); 711 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 712 mvm->tcm.ts = jiffies; 713 mvm->tcm.ll_ts = jiffies; 714 mvm->tcm.uapsd_nonagg_ts = jiffies; 715 716 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 717 718 mvm->cmd_ver.d0i3_resp = 719 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 720 0); 721 /* we only support version 1 */ 722 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 723 goto out_free; 724 725 mvm->cmd_ver.range_resp = 726 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 727 TOF_RANGE_RESPONSE_NOTIF, 5); 728 /* we only support up to version 8 */ 729 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 8)) 730 goto out_free; 731 732 /* 733 * Populate the state variables that the transport layer needs 734 * to know about. 735 */ 736 trans_cfg.op_mode = op_mode; 737 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 738 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 739 740 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 741 rb_size_default = IWL_AMSDU_2K; 742 else 743 rb_size_default = IWL_AMSDU_4K; 744 745 switch (iwlwifi_mod_params.amsdu_size) { 746 case IWL_AMSDU_DEF: 747 trans_cfg.rx_buf_size = rb_size_default; 748 break; 749 case IWL_AMSDU_4K: 750 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 751 break; 752 case IWL_AMSDU_8K: 753 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 754 break; 755 case IWL_AMSDU_12K: 756 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 757 break; 758 default: 759 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 760 iwlwifi_mod_params.amsdu_size); 761 trans_cfg.rx_buf_size = rb_size_default; 762 } 763 764 trans->wide_cmd_header = true; 765 trans_cfg.bc_table_dword = 766 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 767 768 trans_cfg.command_groups = iwl_mvm_groups; 769 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 770 771 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 772 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 773 trans_cfg.scd_set_active = true; 774 775 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 776 driver_data[2]); 777 778 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD; 779 780 /* Set a short watchdog for the command queue */ 781 trans_cfg.cmd_q_wdg_timeout = 782 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 783 784 snprintf(mvm->hw->wiphy->fw_version, 785 sizeof(mvm->hw->wiphy->fw_version), 786 "%s", fw->fw_version); 787 788 /* Configure transport layer */ 789 iwl_trans_configure(mvm->trans, &trans_cfg); 790 791 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 792 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 793 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 794 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 795 sizeof(trans->dbg.conf_tlv)); 796 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 797 798 trans->iml = mvm->fw->iml; 799 trans->iml_len = mvm->fw->iml_len; 800 801 /* set up notification wait support */ 802 iwl_notification_wait_init(&mvm->notif_wait); 803 804 /* Init phy db */ 805 mvm->phy_db = iwl_phy_db_init(trans); 806 if (!mvm->phy_db) { 807 IWL_ERR(mvm, "Cannot init phy_db\n"); 808 goto out_free; 809 } 810 811 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 812 mvm->trans->name, mvm->trans->hw_rev); 813 814 if (iwlwifi_mod_params.nvm_file) 815 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 816 else 817 IWL_DEBUG_EEPROM(mvm->trans->dev, 818 "working without external nvm file\n"); 819 820 err = iwl_trans_start_hw(mvm->trans); 821 if (err) 822 goto out_free; 823 824 mutex_lock(&mvm->mutex); 825 err = iwl_run_init_mvm_ucode(mvm, true); 826 if (err && err != -ERFKILL) 827 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 828 if (!iwlmvm_mod_params.init_dbg || !err) 829 iwl_mvm_stop_device(mvm); 830 mutex_unlock(&mvm->mutex); 831 if (err < 0) { 832 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); 833 goto out_free; 834 } 835 836 scan_size = iwl_mvm_scan_size(mvm); 837 838 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 839 if (!mvm->scan_cmd) 840 goto out_free; 841 842 /* Set EBS as successful as long as not stated otherwise by the FW. */ 843 mvm->last_ebs_successful = true; 844 845 err = iwl_mvm_mac_setup_register(mvm); 846 if (err) 847 goto out_free; 848 mvm->hw_registered = true; 849 850 min_backoff = iwl_mvm_min_backoff(mvm); 851 iwl_mvm_thermal_initialize(mvm, min_backoff); 852 853 iwl_mvm_dbgfs_register(mvm, dbgfs_dir); 854 855 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 856 memset(&mvm->rx_stats_v3, 0, 857 sizeof(struct mvm_statistics_rx_v3)); 858 else 859 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 860 861 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 862 863 return op_mode; 864 865 out_free: 866 iwl_fw_flush_dumps(&mvm->fwrt); 867 iwl_fw_runtime_free(&mvm->fwrt); 868 869 if (iwlmvm_mod_params.init_dbg) 870 return op_mode; 871 iwl_phy_db_free(mvm->phy_db); 872 kfree(mvm->scan_cmd); 873 iwl_trans_op_mode_leave(trans); 874 875 ieee80211_free_hw(mvm->hw); 876 return NULL; 877 } 878 879 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 880 { 881 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 882 int i; 883 884 iwl_mvm_leds_exit(mvm); 885 886 iwl_mvm_thermal_exit(mvm); 887 888 ieee80211_unregister_hw(mvm->hw); 889 890 kfree(mvm->scan_cmd); 891 kfree(mvm->mcast_filter_cmd); 892 mvm->mcast_filter_cmd = NULL; 893 894 kfree(mvm->error_recovery_buf); 895 mvm->error_recovery_buf = NULL; 896 897 iwl_trans_op_mode_leave(mvm->trans); 898 899 iwl_phy_db_free(mvm->phy_db); 900 mvm->phy_db = NULL; 901 902 kfree(mvm->nvm_data); 903 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 904 kfree(mvm->nvm_sections[i].data); 905 906 cancel_delayed_work_sync(&mvm->tcm.work); 907 908 iwl_fw_runtime_free(&mvm->fwrt); 909 mutex_destroy(&mvm->mutex); 910 911 ieee80211_free_hw(mvm->hw); 912 } 913 914 struct iwl_async_handler_entry { 915 struct list_head list; 916 struct iwl_rx_cmd_buffer rxb; 917 enum iwl_rx_handler_context context; 918 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 919 }; 920 921 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 922 { 923 struct iwl_async_handler_entry *entry, *tmp; 924 925 spin_lock_bh(&mvm->async_handlers_lock); 926 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 927 iwl_free_rxb(&entry->rxb); 928 list_del(&entry->list); 929 kfree(entry); 930 } 931 spin_unlock_bh(&mvm->async_handlers_lock); 932 } 933 934 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 935 { 936 struct iwl_mvm *mvm = 937 container_of(wk, struct iwl_mvm, async_handlers_wk); 938 struct iwl_async_handler_entry *entry, *tmp; 939 LIST_HEAD(local_list); 940 941 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 942 943 /* 944 * Sync with Rx path with a lock. Remove all the entries from this list, 945 * add them to a local one (lock free), and then handle them. 946 */ 947 spin_lock_bh(&mvm->async_handlers_lock); 948 list_splice_init(&mvm->async_handlers_list, &local_list); 949 spin_unlock_bh(&mvm->async_handlers_lock); 950 951 list_for_each_entry_safe(entry, tmp, &local_list, list) { 952 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 953 mutex_lock(&mvm->mutex); 954 entry->fn(mvm, &entry->rxb); 955 iwl_free_rxb(&entry->rxb); 956 list_del(&entry->list); 957 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 958 mutex_unlock(&mvm->mutex); 959 kfree(entry); 960 } 961 } 962 963 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 964 struct iwl_rx_packet *pkt) 965 { 966 struct iwl_fw_dbg_trigger_tlv *trig; 967 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 968 int i; 969 970 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 971 FW_DBG_TRIGGER_FW_NOTIF); 972 if (!trig) 973 return; 974 975 cmds_trig = (void *)trig->data; 976 977 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 978 /* don't collect on CMD 0 */ 979 if (!cmds_trig->cmds[i].cmd_id) 980 break; 981 982 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 983 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 984 continue; 985 986 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 987 "CMD 0x%02x.%02x received", 988 pkt->hdr.group_id, pkt->hdr.cmd); 989 break; 990 } 991 } 992 993 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 994 struct iwl_rx_cmd_buffer *rxb, 995 struct iwl_rx_packet *pkt) 996 { 997 int i; 998 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 999 1000 iwl_dbg_tlv_time_point(&mvm->fwrt, 1001 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1002 iwl_mvm_rx_check_trigger(mvm, pkt); 1003 1004 /* 1005 * Do the notification wait before RX handlers so 1006 * even if the RX handler consumes the RXB we have 1007 * access to it in the notification wait entry. 1008 */ 1009 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1010 1011 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1012 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1013 struct iwl_async_handler_entry *entry; 1014 1015 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1016 continue; 1017 1018 if (rx_h->context == RX_HANDLER_SYNC) { 1019 rx_h->fn(mvm, rxb); 1020 return; 1021 } 1022 1023 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1024 /* we can't do much... */ 1025 if (!entry) 1026 return; 1027 1028 entry->rxb._page = rxb_steal_page(rxb); 1029 entry->rxb._offset = rxb->_offset; 1030 entry->rxb._rx_page_order = rxb->_rx_page_order; 1031 entry->fn = rx_h->fn; 1032 entry->context = rx_h->context; 1033 spin_lock(&mvm->async_handlers_lock); 1034 list_add_tail(&entry->list, &mvm->async_handlers_list); 1035 spin_unlock(&mvm->async_handlers_lock); 1036 schedule_work(&mvm->async_handlers_wk); 1037 break; 1038 } 1039 } 1040 1041 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1042 struct napi_struct *napi, 1043 struct iwl_rx_cmd_buffer *rxb) 1044 { 1045 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1046 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1047 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1048 1049 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1050 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1051 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1052 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1053 else 1054 iwl_mvm_rx_common(mvm, rxb, pkt); 1055 } 1056 1057 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1058 struct napi_struct *napi, 1059 struct iwl_rx_cmd_buffer *rxb) 1060 { 1061 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1062 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1063 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1064 1065 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1066 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1067 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1068 RX_QUEUES_NOTIFICATION))) 1069 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1070 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1071 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1072 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1073 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1074 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1075 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1076 else 1077 iwl_mvm_rx_common(mvm, rxb, pkt); 1078 } 1079 1080 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1081 const struct iwl_device_cmd *cmd) 1082 { 1083 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1084 1085 /* 1086 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1087 * commands that need to block the Tx queues. 1088 */ 1089 iwl_trans_block_txq_ptrs(mvm->trans, false); 1090 } 1091 1092 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1093 { 1094 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1095 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1096 } 1097 1098 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1099 int hw_queue, bool start) 1100 { 1101 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1102 struct ieee80211_sta *sta; 1103 struct ieee80211_txq *txq; 1104 struct iwl_mvm_txq *mvmtxq; 1105 int i; 1106 unsigned long tid_bitmap; 1107 struct iwl_mvm_sta *mvmsta; 1108 u8 sta_id; 1109 1110 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1111 mvm->tvqm_info[hw_queue].sta_id : 1112 mvm->queue_info[hw_queue].ra_sta_id; 1113 1114 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1115 return; 1116 1117 rcu_read_lock(); 1118 1119 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1120 if (IS_ERR_OR_NULL(sta)) 1121 goto out; 1122 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1123 1124 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1125 if (!start) 1126 ieee80211_stop_queues(mvm->hw); 1127 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1128 ieee80211_wake_queues(mvm->hw); 1129 1130 goto out; 1131 } 1132 1133 if (iwl_mvm_has_new_tx_api(mvm)) { 1134 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1135 1136 tid_bitmap = BIT(tid); 1137 } else { 1138 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1139 } 1140 1141 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1142 int tid = i; 1143 1144 if (tid == IWL_MAX_TID_COUNT) 1145 tid = IEEE80211_NUM_TIDS; 1146 1147 txq = sta->txq[tid]; 1148 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1149 mvmtxq->stopped = !start; 1150 1151 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1152 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1153 } 1154 1155 out: 1156 rcu_read_unlock(); 1157 } 1158 1159 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1160 { 1161 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1162 } 1163 1164 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1165 { 1166 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1167 } 1168 1169 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1170 { 1171 bool state = iwl_mvm_is_radio_killed(mvm); 1172 1173 if (state) 1174 wake_up(&mvm->rx_sync_waitq); 1175 1176 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1177 } 1178 1179 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1180 { 1181 if (state) 1182 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1183 else 1184 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1185 1186 iwl_mvm_set_rfkill_state(mvm); 1187 } 1188 1189 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1190 { 1191 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1192 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1193 bool unified = iwl_mvm_has_unified_ucode(mvm); 1194 1195 if (state) 1196 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1197 else 1198 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1199 1200 iwl_mvm_set_rfkill_state(mvm); 1201 1202 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1203 if (rfkill_safe_init_done) 1204 iwl_abort_notification_waits(&mvm->notif_wait); 1205 1206 /* 1207 * Don't ask the transport to stop the firmware. We'll do it 1208 * after cfg80211 takes us down. 1209 */ 1210 if (unified) 1211 return false; 1212 1213 /* 1214 * Stop the device if we run OPERATIONAL firmware or if we are in the 1215 * middle of the calibrations. 1216 */ 1217 return state && rfkill_safe_init_done; 1218 } 1219 1220 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1221 { 1222 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1223 struct ieee80211_tx_info *info; 1224 1225 info = IEEE80211_SKB_CB(skb); 1226 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1227 ieee80211_free_txskb(mvm->hw, skb); 1228 } 1229 1230 struct iwl_mvm_reprobe { 1231 struct device *dev; 1232 struct work_struct work; 1233 }; 1234 1235 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1236 { 1237 struct iwl_mvm_reprobe *reprobe; 1238 1239 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1240 if (device_reprobe(reprobe->dev)) 1241 dev_err(reprobe->dev, "reprobe failed!\n"); 1242 kfree(reprobe); 1243 module_put(THIS_MODULE); 1244 } 1245 1246 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1247 { 1248 iwl_abort_notification_waits(&mvm->notif_wait); 1249 iwl_dbg_tlv_del_timers(mvm->trans); 1250 1251 /* 1252 * This is a bit racy, but worst case we tell mac80211 about 1253 * a stopped/aborted scan when that was already done which 1254 * is not a problem. It is necessary to abort any os scan 1255 * here because mac80211 requires having the scan cleared 1256 * before restarting. 1257 * We'll reset the scan_status to NONE in restart cleanup in 1258 * the next start() call from mac80211. If restart isn't called 1259 * (no fw restart) scan status will stay busy. 1260 */ 1261 iwl_mvm_report_scan_aborted(mvm); 1262 1263 /* 1264 * If we're restarting already, don't cycle restarts. 1265 * If INIT fw asserted, it will likely fail again. 1266 * If WoWLAN fw asserted, don't restart either, mac80211 1267 * can't recover this since we're already half suspended. 1268 */ 1269 if (!mvm->fw_restart && fw_error) { 1270 iwl_fw_error_collect(&mvm->fwrt); 1271 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1272 struct iwl_mvm_reprobe *reprobe; 1273 1274 IWL_ERR(mvm, 1275 "Firmware error during reconfiguration - reprobe!\n"); 1276 1277 /* 1278 * get a module reference to avoid doing this while unloading 1279 * anyway and to avoid scheduling a work with code that's 1280 * being removed. 1281 */ 1282 if (!try_module_get(THIS_MODULE)) { 1283 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1284 return; 1285 } 1286 1287 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1288 if (!reprobe) { 1289 module_put(THIS_MODULE); 1290 return; 1291 } 1292 reprobe->dev = mvm->trans->dev; 1293 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1294 schedule_work(&reprobe->work); 1295 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1296 &mvm->status)) { 1297 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1298 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1299 mvm->hw_registered && 1300 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1301 if (mvm->fw->ucode_capa.error_log_size) { 1302 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1303 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1304 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1305 1306 if (recover_buf) { 1307 mvm->error_recovery_buf = recover_buf; 1308 iwl_trans_read_mem_bytes(mvm->trans, 1309 src_addr, 1310 recover_buf, 1311 src_size); 1312 } 1313 } 1314 1315 iwl_fw_error_collect(&mvm->fwrt); 1316 1317 if (fw_error && mvm->fw_restart > 0) 1318 mvm->fw_restart--; 1319 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1320 ieee80211_restart_hw(mvm->hw); 1321 } 1322 } 1323 1324 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) 1325 { 1326 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1327 1328 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) 1329 iwl_mvm_dump_nic_error_log(mvm); 1330 1331 iwl_mvm_nic_restart(mvm, true); 1332 } 1333 1334 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1335 { 1336 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1337 1338 WARN_ON(1); 1339 iwl_mvm_nic_restart(mvm, true); 1340 } 1341 1342 #define IWL_MVM_COMMON_OPS \ 1343 /* these could be differentiated */ \ 1344 .async_cb = iwl_mvm_async_cb, \ 1345 .queue_full = iwl_mvm_stop_sw_queue, \ 1346 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1347 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1348 .free_skb = iwl_mvm_free_skb, \ 1349 .nic_error = iwl_mvm_nic_error, \ 1350 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1351 .nic_config = iwl_mvm_nic_config, \ 1352 /* as we only register one, these MUST be common! */ \ 1353 .start = iwl_op_mode_mvm_start, \ 1354 .stop = iwl_op_mode_mvm_stop 1355 1356 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1357 IWL_MVM_COMMON_OPS, 1358 .rx = iwl_mvm_rx, 1359 }; 1360 1361 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1362 struct napi_struct *napi, 1363 struct iwl_rx_cmd_buffer *rxb, 1364 unsigned int queue) 1365 { 1366 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1367 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1368 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1369 1370 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1371 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1372 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1373 RX_QUEUES_NOTIFICATION))) 1374 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1375 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1376 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1377 } 1378 1379 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1380 IWL_MVM_COMMON_OPS, 1381 .rx = iwl_mvm_rx_mq, 1382 .rx_rss = iwl_mvm_rx_mq_rss, 1383 }; 1384