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