1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 11 * Copyright(c) 2018 - 2019 Intel Corporation 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of version 2 of the GNU General Public License as 15 * published by the Free Software Foundation. 16 * 17 * This program is distributed in the hope that it will be useful, but 18 * WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20 * General Public License for more details. 21 * 22 * The full GNU General Public License is included in this distribution 23 * in the file called COPYING. 24 * 25 * Contact Information: 26 * Intel Linux Wireless <linuxwifi@intel.com> 27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 28 * 29 * BSD LICENSE 30 * 31 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 34 * Copyright(c) 2018 - 2019 Intel Corporation 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 41 * * Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * * Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in 45 * the documentation and/or other materials provided with the 46 * distribution. 47 * * Neither the name Intel Corporation nor the names of its 48 * contributors may be used to endorse or promote products derived 49 * from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 * 63 *****************************************************************************/ 64 #include <linux/module.h> 65 #include <linux/vmalloc.h> 66 #include <net/mac80211.h> 67 68 #include "fw/notif-wait.h" 69 #include "iwl-trans.h" 70 #include "iwl-op-mode.h" 71 #include "fw/img.h" 72 #include "iwl-debug.h" 73 #include "iwl-drv.h" 74 #include "iwl-modparams.h" 75 #include "mvm.h" 76 #include "iwl-phy-db.h" 77 #include "iwl-eeprom-parse.h" 78 #include "iwl-csr.h" 79 #include "iwl-io.h" 80 #include "iwl-prph.h" 81 #include "rs.h" 82 #include "fw/api/scan.h" 83 #include "time-event.h" 84 #include "fw-api.h" 85 #include "fw/acpi.h" 86 87 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 88 MODULE_DESCRIPTION(DRV_DESCRIPTION); 89 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); 90 MODULE_LICENSE("GPL"); 91 92 static const struct iwl_op_mode_ops iwl_mvm_ops; 93 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 94 95 struct iwl_mvm_mod_params iwlmvm_mod_params = { 96 .power_scheme = IWL_POWER_SCHEME_BPS, 97 .tfd_q_hang_detect = true 98 /* rest of fields are 0 by default */ 99 }; 100 101 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 102 MODULE_PARM_DESC(init_dbg, 103 "set to true to debug an ASSERT in INIT fw (default: false"); 104 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 105 MODULE_PARM_DESC(power_scheme, 106 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 107 module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect, 108 bool, 0444); 109 MODULE_PARM_DESC(tfd_q_hang_detect, 110 "TFD queues hang detection (default: true"); 111 112 /* 113 * module init and exit functions 114 */ 115 static int __init iwl_mvm_init(void) 116 { 117 int ret; 118 119 ret = iwl_mvm_rate_control_register(); 120 if (ret) { 121 pr_err("Unable to register rate control algorithm: %d\n", ret); 122 return ret; 123 } 124 125 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 126 if (ret) 127 pr_err("Unable to register MVM op_mode: %d\n", ret); 128 129 return ret; 130 } 131 module_init(iwl_mvm_init); 132 133 static void __exit iwl_mvm_exit(void) 134 { 135 iwl_opmode_deregister("iwlmvm"); 136 iwl_mvm_rate_control_unregister(); 137 } 138 module_exit(iwl_mvm_exit); 139 140 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 141 { 142 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 143 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 144 u32 reg_val = 0; 145 u32 phy_config = iwl_mvm_get_phy_config(mvm); 146 147 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 148 FW_PHY_CFG_RADIO_TYPE_POS; 149 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 150 FW_PHY_CFG_RADIO_STEP_POS; 151 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 152 FW_PHY_CFG_RADIO_DASH_POS; 153 154 /* SKU control */ 155 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) << 156 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP; 157 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) << 158 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH; 159 160 /* radio configuration */ 161 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 162 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 163 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 164 165 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 166 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 167 168 /* 169 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 170 * sampling, and shouldn't be set to any non-zero value. 171 * The same is supposed to be true of the other HW, but unsetting 172 * them (such as the 7260) causes automatic tests to fail on seemingly 173 * unrelated errors. Need to further investigate this, but for now 174 * we'll separate cases. 175 */ 176 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 177 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 178 179 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 180 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 181 182 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 183 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | 184 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | 185 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 186 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 187 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 188 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 189 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 190 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 191 reg_val); 192 193 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 194 radio_cfg_step, radio_cfg_dash); 195 196 /* 197 * W/A : NIC is stuck in a reset state after Early PCIe power off 198 * (PCIe power is lost before PERST# is asserted), causing ME FW 199 * to lose ownership and not being able to obtain it back. 200 */ 201 if (!mvm->trans->cfg->apmg_not_supported) 202 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 203 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 204 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 205 } 206 207 /** 208 * enum iwl_rx_handler_context context for Rx handler 209 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 210 * which can't acquire mvm->mutex. 211 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 212 * (and only in this case!), it should be set as ASYNC. In that case, 213 * it will be called from a worker with mvm->mutex held. 214 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 215 * mutex itself, it will be called from a worker without mvm->mutex held. 216 */ 217 enum iwl_rx_handler_context { 218 RX_HANDLER_SYNC, 219 RX_HANDLER_ASYNC_LOCKED, 220 RX_HANDLER_ASYNC_UNLOCKED, 221 }; 222 223 /** 224 * struct iwl_rx_handlers handler for FW notification 225 * @cmd_id: command id 226 * @context: see &iwl_rx_handler_context 227 * @fn: the function is called when notification is received 228 */ 229 struct iwl_rx_handlers { 230 u16 cmd_id; 231 enum iwl_rx_handler_context context; 232 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 233 }; 234 235 #define RX_HANDLER(_cmd_id, _fn, _context) \ 236 { .cmd_id = _cmd_id, .fn = _fn, .context = _context } 237 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context) \ 238 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context } 239 240 /* 241 * Handlers for fw notifications 242 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 243 * This list should be in order of frequency for performance purposes. 244 * 245 * The handler can be one from three contexts, see &iwl_rx_handler_context 246 */ 247 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 248 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC), 249 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC), 250 251 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 252 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC), 253 254 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 255 RX_HANDLER_ASYNC_LOCKED), 256 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 257 RX_HANDLER_ASYNC_LOCKED), 258 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 259 RX_HANDLER_ASYNC_LOCKED), 260 261 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 262 iwl_mvm_window_status_notif, RX_HANDLER_SYNC), 263 264 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 265 RX_HANDLER_SYNC), 266 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 267 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC), 268 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 269 RX_HANDLER_ASYNC_LOCKED), 270 271 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC), 272 273 RX_HANDLER(SCAN_ITERATION_COMPLETE, 274 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC), 275 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 276 iwl_mvm_rx_lmac_scan_complete_notif, 277 RX_HANDLER_ASYNC_LOCKED), 278 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found, 279 RX_HANDLER_SYNC), 280 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 281 RX_HANDLER_ASYNC_LOCKED), 282 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 283 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC), 284 285 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, 286 RX_HANDLER_SYNC), 287 288 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 289 RX_HANDLER_SYNC), 290 291 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC), 292 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 293 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC), 294 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 295 RX_HANDLER_ASYNC_LOCKED), 296 RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 297 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 298 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 299 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC), 300 301 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 302 RX_HANDLER_ASYNC_LOCKED), 303 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 304 RX_HANDLER_SYNC), 305 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 306 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED), 307 308 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 309 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 310 RX_HANDLER_GRP(LOCATION_GROUP, TOF_LC_NOTIF, 311 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 312 313 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 314 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC), 315 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 316 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC), 317 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 318 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC), 319 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 320 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC), 321 }; 322 #undef RX_HANDLER 323 #undef RX_HANDLER_GRP 324 325 /* Please keep this array *SORTED* by hex value. 326 * Access is done through binary search 327 */ 328 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 329 HCMD_NAME(MVM_ALIVE), 330 HCMD_NAME(REPLY_ERROR), 331 HCMD_NAME(ECHO_CMD), 332 HCMD_NAME(INIT_COMPLETE_NOTIF), 333 HCMD_NAME(PHY_CONTEXT_CMD), 334 HCMD_NAME(DBG_CFG), 335 HCMD_NAME(SCAN_CFG_CMD), 336 HCMD_NAME(SCAN_REQ_UMAC), 337 HCMD_NAME(SCAN_ABORT_UMAC), 338 HCMD_NAME(SCAN_COMPLETE_UMAC), 339 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 340 HCMD_NAME(ADD_STA_KEY), 341 HCMD_NAME(ADD_STA), 342 HCMD_NAME(REMOVE_STA), 343 HCMD_NAME(FW_GET_ITEM_CMD), 344 HCMD_NAME(TX_CMD), 345 HCMD_NAME(SCD_QUEUE_CFG), 346 HCMD_NAME(TXPATH_FLUSH), 347 HCMD_NAME(MGMT_MCAST_KEY), 348 HCMD_NAME(WEP_KEY), 349 HCMD_NAME(SHARED_MEM_CFG), 350 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 351 HCMD_NAME(MAC_CONTEXT_CMD), 352 HCMD_NAME(TIME_EVENT_CMD), 353 HCMD_NAME(TIME_EVENT_NOTIFICATION), 354 HCMD_NAME(BINDING_CONTEXT_CMD), 355 HCMD_NAME(TIME_QUOTA_CMD), 356 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 357 HCMD_NAME(LEDS_CMD), 358 HCMD_NAME(LQ_CMD), 359 HCMD_NAME(FW_PAGING_BLOCK_CMD), 360 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 361 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 362 HCMD_NAME(HOT_SPOT_CMD), 363 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 364 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 365 HCMD_NAME(BT_COEX_CI), 366 HCMD_NAME(PHY_CONFIGURATION_CMD), 367 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 368 HCMD_NAME(PHY_DB_CMD), 369 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 370 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 371 HCMD_NAME(POWER_TABLE_CMD), 372 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 373 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 374 HCMD_NAME(DC2DC_CONFIG_CMD), 375 HCMD_NAME(NVM_ACCESS_CMD), 376 HCMD_NAME(BEACON_NOTIFICATION), 377 HCMD_NAME(BEACON_TEMPLATE_CMD), 378 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 379 HCMD_NAME(BT_CONFIG), 380 HCMD_NAME(STATISTICS_CMD), 381 HCMD_NAME(STATISTICS_NOTIFICATION), 382 HCMD_NAME(EOSP_NOTIFICATION), 383 HCMD_NAME(REDUCE_TX_POWER_CMD), 384 HCMD_NAME(CARD_STATE_NOTIFICATION), 385 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 386 HCMD_NAME(TDLS_CONFIG_CMD), 387 HCMD_NAME(MAC_PM_POWER_TABLE), 388 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 389 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 390 HCMD_NAME(RSS_CONFIG_CMD), 391 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 392 HCMD_NAME(REPLY_RX_PHY_CMD), 393 HCMD_NAME(REPLY_RX_MPDU_CMD), 394 HCMD_NAME(BAR_FRAME_RELEASE), 395 HCMD_NAME(FRAME_RELEASE), 396 HCMD_NAME(BA_NOTIF), 397 HCMD_NAME(MCC_UPDATE_CMD), 398 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 399 HCMD_NAME(MARKER_CMD), 400 HCMD_NAME(BT_PROFILE_NOTIFICATION), 401 HCMD_NAME(BCAST_FILTER_CMD), 402 HCMD_NAME(MCAST_FILTER_CMD), 403 HCMD_NAME(REPLY_SF_CFG_CMD), 404 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 405 HCMD_NAME(D3_CONFIG_CMD), 406 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 407 HCMD_NAME(OFFLOADS_QUERY_CMD), 408 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD), 409 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 410 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 411 HCMD_NAME(WOWLAN_PATTERNS), 412 HCMD_NAME(WOWLAN_CONFIGURATION), 413 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 414 HCMD_NAME(WOWLAN_TKIP_PARAM), 415 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 416 HCMD_NAME(WOWLAN_GET_STATUSES), 417 HCMD_NAME(SCAN_ITERATION_COMPLETE), 418 HCMD_NAME(D0I3_END_CMD), 419 HCMD_NAME(LTR_CONFIG), 420 HCMD_NAME(LDBG_CONFIG_CMD), 421 }; 422 423 /* Please keep this array *SORTED* by hex value. 424 * Access is done through binary search 425 */ 426 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 427 HCMD_NAME(SHARED_MEM_CFG_CMD), 428 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 429 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 430 }; 431 432 /* Please keep this array *SORTED* by hex value. 433 * Access is done through binary search 434 */ 435 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 436 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 437 HCMD_NAME(SESSION_PROTECTION_CMD), 438 HCMD_NAME(SESSION_PROTECTION_NOTIF), 439 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF), 440 }; 441 442 /* Please keep this array *SORTED* by hex value. 443 * Access is done through binary search 444 */ 445 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 446 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 447 HCMD_NAME(CTDP_CONFIG_CMD), 448 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 449 HCMD_NAME(GEO_TX_POWER_LIMIT), 450 HCMD_NAME(CT_KILL_NOTIFICATION), 451 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 452 }; 453 454 /* Please keep this array *SORTED* by hex value. 455 * Access is done through binary search 456 */ 457 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 458 HCMD_NAME(DQA_ENABLE_CMD), 459 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 460 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 461 HCMD_NAME(STA_HE_CTXT_CMD), 462 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 463 HCMD_NAME(TLC_MNG_CONFIG_CMD), 464 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 465 HCMD_NAME(STA_PM_NOTIF), 466 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 467 HCMD_NAME(RX_QUEUES_NOTIFICATION), 468 }; 469 470 /* Please keep this array *SORTED* by hex value. 471 * Access is done through binary search 472 */ 473 static const struct iwl_hcmd_names iwl_mvm_debug_names[] = { 474 HCMD_NAME(DBGC_SUSPEND_RESUME), 475 HCMD_NAME(BUFFER_ALLOCATION), 476 HCMD_NAME(MFU_ASSERT_DUMP_NTF), 477 }; 478 479 /* Please keep this array *SORTED* by hex value. 480 * Access is done through binary search 481 */ 482 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 483 HCMD_NAME(TOF_RANGE_REQ_CMD), 484 HCMD_NAME(TOF_CONFIG_CMD), 485 HCMD_NAME(TOF_RANGE_ABORT_CMD), 486 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 487 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 488 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 489 HCMD_NAME(TOF_LC_NOTIF), 490 HCMD_NAME(TOF_RESPONDER_STATS), 491 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 492 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 493 }; 494 495 /* Please keep this array *SORTED* by hex value. 496 * Access is done through binary search 497 */ 498 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 499 HCMD_NAME(STORED_BEACON_NTF), 500 }; 501 502 /* Please keep this array *SORTED* by hex value. 503 * Access is done through binary search 504 */ 505 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 506 HCMD_NAME(NVM_ACCESS_COMPLETE), 507 HCMD_NAME(NVM_GET_INFO), 508 HCMD_NAME(TAS_CONFIG), 509 }; 510 511 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 512 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 513 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 514 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 515 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 516 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 517 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 518 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 519 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 520 [REGULATORY_AND_NVM_GROUP] = 521 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 522 }; 523 524 /* this forward declaration can avoid to export the function */ 525 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 526 527 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 528 { 529 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 530 u64 dflt_pwr_limit; 531 532 if (!backoff) 533 return 0; 534 535 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 536 537 while (backoff->pwr) { 538 if (dflt_pwr_limit >= backoff->pwr) 539 return backoff->backoff; 540 541 backoff++; 542 } 543 544 return 0; 545 } 546 547 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 548 { 549 struct iwl_mvm *mvm = 550 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 551 struct ieee80211_vif *tx_blocked_vif; 552 struct iwl_mvm_vif *mvmvif; 553 554 mutex_lock(&mvm->mutex); 555 556 tx_blocked_vif = 557 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 558 lockdep_is_held(&mvm->mutex)); 559 560 if (!tx_blocked_vif) 561 goto unlock; 562 563 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 564 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 565 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 566 unlock: 567 mutex_unlock(&mvm->mutex); 568 } 569 570 static int iwl_mvm_fwrt_dump_start(void *ctx) 571 { 572 struct iwl_mvm *mvm = ctx; 573 574 mutex_lock(&mvm->mutex); 575 576 return 0; 577 } 578 579 static void iwl_mvm_fwrt_dump_end(void *ctx) 580 { 581 struct iwl_mvm *mvm = ctx; 582 583 mutex_unlock(&mvm->mutex); 584 } 585 586 static bool iwl_mvm_fwrt_fw_running(void *ctx) 587 { 588 return iwl_mvm_firmware_running(ctx); 589 } 590 591 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 592 { 593 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 594 int ret; 595 596 mutex_lock(&mvm->mutex); 597 ret = iwl_mvm_send_cmd(mvm, host_cmd); 598 mutex_unlock(&mvm->mutex); 599 600 return ret; 601 } 602 603 static bool iwl_mvm_d3_debug_enable(void *ctx) 604 { 605 return IWL_MVM_D3_DEBUG; 606 } 607 608 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 609 .dump_start = iwl_mvm_fwrt_dump_start, 610 .dump_end = iwl_mvm_fwrt_dump_end, 611 .fw_running = iwl_mvm_fwrt_fw_running, 612 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 613 .d3_debug_enable = iwl_mvm_d3_debug_enable, 614 }; 615 616 static struct iwl_op_mode * 617 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 618 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 619 { 620 struct ieee80211_hw *hw; 621 struct iwl_op_mode *op_mode; 622 struct iwl_mvm *mvm; 623 struct iwl_trans_config trans_cfg = {}; 624 static const u8 no_reclaim_cmds[] = { 625 TX_CMD, 626 }; 627 int err, scan_size; 628 u32 min_backoff; 629 enum iwl_amsdu_size rb_size_default; 630 631 /* 632 * We use IWL_MVM_STATION_COUNT to check the validity of the station 633 * index all over the driver - check that its value corresponds to the 634 * array size. 635 */ 636 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT); 637 638 /******************************** 639 * 1. Allocating and configuring HW data 640 ********************************/ 641 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 642 sizeof(struct iwl_mvm), 643 &iwl_mvm_hw_ops); 644 if (!hw) 645 return NULL; 646 647 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 648 649 if (cfg->max_tx_agg_size) 650 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 651 else 652 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 653 654 op_mode = hw->priv; 655 656 mvm = IWL_OP_MODE_GET_MVM(op_mode); 657 mvm->dev = trans->dev; 658 mvm->trans = trans; 659 mvm->cfg = cfg; 660 mvm->fw = fw; 661 mvm->hw = hw; 662 663 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 664 dbgfs_dir); 665 666 mvm->init_status = 0; 667 668 if (iwl_mvm_has_new_rx_api(mvm)) { 669 op_mode->ops = &iwl_mvm_ops_mq; 670 trans->rx_mpdu_cmd_hdr_size = 671 (trans->trans_cfg->device_family >= 672 IWL_DEVICE_FAMILY_AX210) ? 673 sizeof(struct iwl_rx_mpdu_desc) : 674 IWL_RX_DESC_SIZE_V1; 675 } else { 676 op_mode->ops = &iwl_mvm_ops; 677 trans->rx_mpdu_cmd_hdr_size = 678 sizeof(struct iwl_rx_mpdu_res_start); 679 680 if (WARN_ON(trans->num_rx_queues > 1)) 681 goto out_free; 682 } 683 684 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 685 686 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 687 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 688 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 689 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 690 691 mvm->sf_state = SF_UNINIT; 692 if (iwl_mvm_has_unified_ucode(mvm)) 693 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 694 else 695 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 696 mvm->drop_bcn_ap_mode = true; 697 698 mutex_init(&mvm->mutex); 699 spin_lock_init(&mvm->async_handlers_lock); 700 INIT_LIST_HEAD(&mvm->time_event_list); 701 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 702 INIT_LIST_HEAD(&mvm->async_handlers_list); 703 spin_lock_init(&mvm->time_event_lock); 704 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 705 706 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 707 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 708 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 709 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 710 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 711 INIT_LIST_HEAD(&mvm->add_stream_txqs); 712 713 init_waitqueue_head(&mvm->rx_sync_waitq); 714 715 atomic_set(&mvm->queue_sync_counter, 0); 716 717 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 718 719 spin_lock_init(&mvm->tcm.lock); 720 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 721 mvm->tcm.ts = jiffies; 722 mvm->tcm.ll_ts = jiffies; 723 mvm->tcm.uapsd_nonagg_ts = jiffies; 724 725 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 726 727 mvm->cmd_ver.d0i3_resp = 728 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 729 0); 730 /* we only support version 1 */ 731 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 732 goto out_free; 733 734 /* 735 * Populate the state variables that the transport layer needs 736 * to know about. 737 */ 738 trans_cfg.op_mode = op_mode; 739 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 740 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 741 742 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 743 rb_size_default = IWL_AMSDU_2K; 744 else 745 rb_size_default = IWL_AMSDU_4K; 746 747 switch (iwlwifi_mod_params.amsdu_size) { 748 case IWL_AMSDU_DEF: 749 trans_cfg.rx_buf_size = rb_size_default; 750 break; 751 case IWL_AMSDU_4K: 752 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 753 break; 754 case IWL_AMSDU_8K: 755 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 756 break; 757 case IWL_AMSDU_12K: 758 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 759 break; 760 default: 761 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 762 iwlwifi_mod_params.amsdu_size); 763 trans_cfg.rx_buf_size = rb_size_default; 764 } 765 766 trans->wide_cmd_header = true; 767 trans_cfg.bc_table_dword = 768 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 769 770 trans_cfg.command_groups = iwl_mvm_groups; 771 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 772 773 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 774 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 775 trans_cfg.scd_set_active = true; 776 777 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 778 driver_data[2]); 779 780 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD; 781 782 /* Set a short watchdog for the command queue */ 783 trans_cfg.cmd_q_wdg_timeout = 784 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 785 786 snprintf(mvm->hw->wiphy->fw_version, 787 sizeof(mvm->hw->wiphy->fw_version), 788 "%s", fw->fw_version); 789 790 /* Configure transport layer */ 791 iwl_trans_configure(mvm->trans, &trans_cfg); 792 793 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 794 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 795 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 796 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 797 sizeof(trans->dbg.conf_tlv)); 798 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 799 800 trans->iml = mvm->fw->iml; 801 trans->iml_len = mvm->fw->iml_len; 802 803 /* set up notification wait support */ 804 iwl_notification_wait_init(&mvm->notif_wait); 805 806 /* Init phy db */ 807 mvm->phy_db = iwl_phy_db_init(trans); 808 if (!mvm->phy_db) { 809 IWL_ERR(mvm, "Cannot init phy_db\n"); 810 goto out_free; 811 } 812 813 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 814 mvm->trans->name, mvm->trans->hw_rev); 815 816 if (iwlwifi_mod_params.nvm_file) 817 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 818 else 819 IWL_DEBUG_EEPROM(mvm->trans->dev, 820 "working without external nvm file\n"); 821 822 err = iwl_trans_start_hw(mvm->trans); 823 if (err) 824 goto out_free; 825 826 mutex_lock(&mvm->mutex); 827 err = iwl_run_init_mvm_ucode(mvm, true); 828 if (err && err != -ERFKILL) 829 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 830 if (!iwlmvm_mod_params.init_dbg || !err) 831 iwl_mvm_stop_device(mvm); 832 mutex_unlock(&mvm->mutex); 833 if (err < 0) { 834 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); 835 goto out_free; 836 } 837 838 scan_size = iwl_mvm_scan_size(mvm); 839 840 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 841 if (!mvm->scan_cmd) 842 goto out_free; 843 844 /* Set EBS as successful as long as not stated otherwise by the FW. */ 845 mvm->last_ebs_successful = true; 846 847 err = iwl_mvm_mac_setup_register(mvm); 848 if (err) 849 goto out_free; 850 mvm->hw_registered = true; 851 852 min_backoff = iwl_mvm_min_backoff(mvm); 853 iwl_mvm_thermal_initialize(mvm, min_backoff); 854 855 iwl_mvm_dbgfs_register(mvm, dbgfs_dir); 856 857 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 858 memset(&mvm->rx_stats_v3, 0, 859 sizeof(struct mvm_statistics_rx_v3)); 860 else 861 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 862 863 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 864 865 return op_mode; 866 867 out_free: 868 iwl_fw_flush_dumps(&mvm->fwrt); 869 iwl_fw_runtime_free(&mvm->fwrt); 870 871 if (iwlmvm_mod_params.init_dbg) 872 return op_mode; 873 iwl_phy_db_free(mvm->phy_db); 874 kfree(mvm->scan_cmd); 875 iwl_trans_op_mode_leave(trans); 876 877 ieee80211_free_hw(mvm->hw); 878 return NULL; 879 } 880 881 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 882 { 883 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 884 int i; 885 886 iwl_mvm_leds_exit(mvm); 887 888 iwl_mvm_thermal_exit(mvm); 889 890 ieee80211_unregister_hw(mvm->hw); 891 892 kfree(mvm->scan_cmd); 893 kfree(mvm->mcast_filter_cmd); 894 mvm->mcast_filter_cmd = NULL; 895 896 kfree(mvm->error_recovery_buf); 897 mvm->error_recovery_buf = NULL; 898 899 iwl_trans_op_mode_leave(mvm->trans); 900 901 iwl_phy_db_free(mvm->phy_db); 902 mvm->phy_db = NULL; 903 904 kfree(mvm->nvm_data); 905 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 906 kfree(mvm->nvm_sections[i].data); 907 908 cancel_delayed_work_sync(&mvm->tcm.work); 909 910 iwl_fw_runtime_free(&mvm->fwrt); 911 mutex_destroy(&mvm->mutex); 912 913 ieee80211_free_hw(mvm->hw); 914 } 915 916 struct iwl_async_handler_entry { 917 struct list_head list; 918 struct iwl_rx_cmd_buffer rxb; 919 enum iwl_rx_handler_context context; 920 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 921 }; 922 923 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 924 { 925 struct iwl_async_handler_entry *entry, *tmp; 926 927 spin_lock_bh(&mvm->async_handlers_lock); 928 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 929 iwl_free_rxb(&entry->rxb); 930 list_del(&entry->list); 931 kfree(entry); 932 } 933 spin_unlock_bh(&mvm->async_handlers_lock); 934 } 935 936 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 937 { 938 struct iwl_mvm *mvm = 939 container_of(wk, struct iwl_mvm, async_handlers_wk); 940 struct iwl_async_handler_entry *entry, *tmp; 941 LIST_HEAD(local_list); 942 943 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 944 945 /* 946 * Sync with Rx path with a lock. Remove all the entries from this list, 947 * add them to a local one (lock free), and then handle them. 948 */ 949 spin_lock_bh(&mvm->async_handlers_lock); 950 list_splice_init(&mvm->async_handlers_list, &local_list); 951 spin_unlock_bh(&mvm->async_handlers_lock); 952 953 list_for_each_entry_safe(entry, tmp, &local_list, list) { 954 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 955 mutex_lock(&mvm->mutex); 956 entry->fn(mvm, &entry->rxb); 957 iwl_free_rxb(&entry->rxb); 958 list_del(&entry->list); 959 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 960 mutex_unlock(&mvm->mutex); 961 kfree(entry); 962 } 963 } 964 965 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 966 struct iwl_rx_packet *pkt) 967 { 968 struct iwl_fw_dbg_trigger_tlv *trig; 969 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 970 int i; 971 972 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 973 FW_DBG_TRIGGER_FW_NOTIF); 974 if (!trig) 975 return; 976 977 cmds_trig = (void *)trig->data; 978 979 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 980 /* don't collect on CMD 0 */ 981 if (!cmds_trig->cmds[i].cmd_id) 982 break; 983 984 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 985 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 986 continue; 987 988 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 989 "CMD 0x%02x.%02x received", 990 pkt->hdr.group_id, pkt->hdr.cmd); 991 break; 992 } 993 } 994 995 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 996 struct iwl_rx_cmd_buffer *rxb, 997 struct iwl_rx_packet *pkt) 998 { 999 int i; 1000 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1001 1002 iwl_dbg_tlv_time_point(&mvm->fwrt, 1003 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1004 iwl_mvm_rx_check_trigger(mvm, pkt); 1005 1006 /* 1007 * Do the notification wait before RX handlers so 1008 * even if the RX handler consumes the RXB we have 1009 * access to it in the notification wait entry. 1010 */ 1011 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1012 1013 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1014 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1015 struct iwl_async_handler_entry *entry; 1016 1017 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1018 continue; 1019 1020 if (rx_h->context == RX_HANDLER_SYNC) { 1021 rx_h->fn(mvm, rxb); 1022 return; 1023 } 1024 1025 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1026 /* we can't do much... */ 1027 if (!entry) 1028 return; 1029 1030 entry->rxb._page = rxb_steal_page(rxb); 1031 entry->rxb._offset = rxb->_offset; 1032 entry->rxb._rx_page_order = rxb->_rx_page_order; 1033 entry->fn = rx_h->fn; 1034 entry->context = rx_h->context; 1035 spin_lock(&mvm->async_handlers_lock); 1036 list_add_tail(&entry->list, &mvm->async_handlers_list); 1037 spin_unlock(&mvm->async_handlers_lock); 1038 schedule_work(&mvm->async_handlers_wk); 1039 break; 1040 } 1041 } 1042 1043 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1044 struct napi_struct *napi, 1045 struct iwl_rx_cmd_buffer *rxb) 1046 { 1047 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1048 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1049 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1050 1051 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1052 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1053 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1054 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1055 else 1056 iwl_mvm_rx_common(mvm, rxb, pkt); 1057 } 1058 1059 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1060 struct napi_struct *napi, 1061 struct iwl_rx_cmd_buffer *rxb) 1062 { 1063 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1064 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1065 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1066 1067 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1068 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1069 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1070 RX_QUEUES_NOTIFICATION))) 1071 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1072 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1073 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1074 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1075 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1076 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1077 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1078 else 1079 iwl_mvm_rx_common(mvm, rxb, pkt); 1080 } 1081 1082 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1083 const struct iwl_device_cmd *cmd) 1084 { 1085 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1086 1087 /* 1088 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1089 * commands that need to block the Tx queues. 1090 */ 1091 iwl_trans_block_txq_ptrs(mvm->trans, false); 1092 } 1093 1094 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1095 { 1096 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1097 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1098 } 1099 1100 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1101 int hw_queue, bool start) 1102 { 1103 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1104 struct ieee80211_sta *sta; 1105 struct ieee80211_txq *txq; 1106 struct iwl_mvm_txq *mvmtxq; 1107 int i; 1108 unsigned long tid_bitmap; 1109 struct iwl_mvm_sta *mvmsta; 1110 u8 sta_id; 1111 1112 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1113 mvm->tvqm_info[hw_queue].sta_id : 1114 mvm->queue_info[hw_queue].ra_sta_id; 1115 1116 if (WARN_ON_ONCE(sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 1117 return; 1118 1119 rcu_read_lock(); 1120 1121 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1122 if (IS_ERR_OR_NULL(sta)) 1123 goto out; 1124 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1125 1126 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1127 if (!start) 1128 ieee80211_stop_queues(mvm->hw); 1129 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1130 ieee80211_wake_queues(mvm->hw); 1131 1132 goto out; 1133 } 1134 1135 if (iwl_mvm_has_new_tx_api(mvm)) { 1136 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1137 1138 tid_bitmap = BIT(tid); 1139 } else { 1140 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1141 } 1142 1143 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1144 int tid = i; 1145 1146 if (tid == IWL_MAX_TID_COUNT) 1147 tid = IEEE80211_NUM_TIDS; 1148 1149 txq = sta->txq[tid]; 1150 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1151 mvmtxq->stopped = !start; 1152 1153 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1154 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1155 } 1156 1157 out: 1158 rcu_read_unlock(); 1159 } 1160 1161 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1162 { 1163 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1164 } 1165 1166 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1167 { 1168 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1169 } 1170 1171 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1172 { 1173 bool state = iwl_mvm_is_radio_killed(mvm); 1174 1175 if (state) 1176 wake_up(&mvm->rx_sync_waitq); 1177 1178 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1179 } 1180 1181 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1182 { 1183 if (state) 1184 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1185 else 1186 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1187 1188 iwl_mvm_set_rfkill_state(mvm); 1189 } 1190 1191 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1192 { 1193 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1194 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1195 bool unified = iwl_mvm_has_unified_ucode(mvm); 1196 1197 if (state) 1198 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1199 else 1200 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1201 1202 iwl_mvm_set_rfkill_state(mvm); 1203 1204 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1205 if (rfkill_safe_init_done) 1206 iwl_abort_notification_waits(&mvm->notif_wait); 1207 1208 /* 1209 * Don't ask the transport to stop the firmware. We'll do it 1210 * after cfg80211 takes us down. 1211 */ 1212 if (unified) 1213 return false; 1214 1215 /* 1216 * Stop the device if we run OPERATIONAL firmware or if we are in the 1217 * middle of the calibrations. 1218 */ 1219 return state && rfkill_safe_init_done; 1220 } 1221 1222 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1223 { 1224 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1225 struct ieee80211_tx_info *info; 1226 1227 info = IEEE80211_SKB_CB(skb); 1228 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1229 ieee80211_free_txskb(mvm->hw, skb); 1230 } 1231 1232 struct iwl_mvm_reprobe { 1233 struct device *dev; 1234 struct work_struct work; 1235 }; 1236 1237 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1238 { 1239 struct iwl_mvm_reprobe *reprobe; 1240 1241 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1242 if (device_reprobe(reprobe->dev)) 1243 dev_err(reprobe->dev, "reprobe failed!\n"); 1244 kfree(reprobe); 1245 module_put(THIS_MODULE); 1246 } 1247 1248 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1249 { 1250 iwl_abort_notification_waits(&mvm->notif_wait); 1251 iwl_dbg_tlv_del_timers(mvm->trans); 1252 1253 /* 1254 * This is a bit racy, but worst case we tell mac80211 about 1255 * a stopped/aborted scan when that was already done which 1256 * is not a problem. It is necessary to abort any os scan 1257 * here because mac80211 requires having the scan cleared 1258 * before restarting. 1259 * We'll reset the scan_status to NONE in restart cleanup in 1260 * the next start() call from mac80211. If restart isn't called 1261 * (no fw restart) scan status will stay busy. 1262 */ 1263 iwl_mvm_report_scan_aborted(mvm); 1264 1265 /* 1266 * If we're restarting already, don't cycle restarts. 1267 * If INIT fw asserted, it will likely fail again. 1268 * If WoWLAN fw asserted, don't restart either, mac80211 1269 * can't recover this since we're already half suspended. 1270 */ 1271 if (!mvm->fw_restart && fw_error) { 1272 iwl_fw_error_collect(&mvm->fwrt); 1273 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1274 struct iwl_mvm_reprobe *reprobe; 1275 1276 IWL_ERR(mvm, 1277 "Firmware error during reconfiguration - reprobe!\n"); 1278 1279 /* 1280 * get a module reference to avoid doing this while unloading 1281 * anyway and to avoid scheduling a work with code that's 1282 * being removed. 1283 */ 1284 if (!try_module_get(THIS_MODULE)) { 1285 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1286 return; 1287 } 1288 1289 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1290 if (!reprobe) { 1291 module_put(THIS_MODULE); 1292 return; 1293 } 1294 reprobe->dev = mvm->trans->dev; 1295 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1296 schedule_work(&reprobe->work); 1297 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1298 &mvm->status)) { 1299 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1300 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1301 mvm->hw_registered && 1302 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1303 if (mvm->fw->ucode_capa.error_log_size) { 1304 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1305 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1306 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1307 1308 if (recover_buf) { 1309 mvm->error_recovery_buf = recover_buf; 1310 iwl_trans_read_mem_bytes(mvm->trans, 1311 src_addr, 1312 recover_buf, 1313 src_size); 1314 } 1315 } 1316 1317 iwl_fw_error_collect(&mvm->fwrt); 1318 1319 if (fw_error && mvm->fw_restart > 0) 1320 mvm->fw_restart--; 1321 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1322 ieee80211_restart_hw(mvm->hw); 1323 } 1324 } 1325 1326 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) 1327 { 1328 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1329 1330 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) 1331 iwl_mvm_dump_nic_error_log(mvm); 1332 1333 iwl_mvm_nic_restart(mvm, true); 1334 } 1335 1336 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1337 { 1338 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1339 1340 WARN_ON(1); 1341 iwl_mvm_nic_restart(mvm, true); 1342 } 1343 1344 #define IWL_MVM_COMMON_OPS \ 1345 /* these could be differentiated */ \ 1346 .async_cb = iwl_mvm_async_cb, \ 1347 .queue_full = iwl_mvm_stop_sw_queue, \ 1348 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1349 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1350 .free_skb = iwl_mvm_free_skb, \ 1351 .nic_error = iwl_mvm_nic_error, \ 1352 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1353 .nic_config = iwl_mvm_nic_config, \ 1354 /* as we only register one, these MUST be common! */ \ 1355 .start = iwl_op_mode_mvm_start, \ 1356 .stop = iwl_op_mode_mvm_stop 1357 1358 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1359 IWL_MVM_COMMON_OPS, 1360 .rx = iwl_mvm_rx, 1361 }; 1362 1363 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1364 struct napi_struct *napi, 1365 struct iwl_rx_cmd_buffer *rxb, 1366 unsigned int queue) 1367 { 1368 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1369 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1370 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1371 1372 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1373 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1374 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1375 RX_QUEUES_NOTIFICATION))) 1376 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1377 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1378 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1379 } 1380 1381 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1382 IWL_MVM_COMMON_OPS, 1383 .rx = iwl_mvm_rx_mq, 1384 .rx_rss = iwl_mvm_rx_mq_rss, 1385 }; 1386