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 }; 509 510 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 511 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 512 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 513 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 514 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 515 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 516 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 517 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 518 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 519 [REGULATORY_AND_NVM_GROUP] = 520 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 521 }; 522 523 /* this forward declaration can avoid to export the function */ 524 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 525 526 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 527 { 528 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 529 u64 dflt_pwr_limit; 530 531 if (!backoff) 532 return 0; 533 534 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 535 536 while (backoff->pwr) { 537 if (dflt_pwr_limit >= backoff->pwr) 538 return backoff->backoff; 539 540 backoff++; 541 } 542 543 return 0; 544 } 545 546 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 547 { 548 struct iwl_mvm *mvm = 549 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 550 struct ieee80211_vif *tx_blocked_vif; 551 struct iwl_mvm_vif *mvmvif; 552 553 mutex_lock(&mvm->mutex); 554 555 tx_blocked_vif = 556 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 557 lockdep_is_held(&mvm->mutex)); 558 559 if (!tx_blocked_vif) 560 goto unlock; 561 562 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 563 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 564 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 565 unlock: 566 mutex_unlock(&mvm->mutex); 567 } 568 569 static int iwl_mvm_fwrt_dump_start(void *ctx) 570 { 571 struct iwl_mvm *mvm = ctx; 572 573 mutex_lock(&mvm->mutex); 574 575 return 0; 576 } 577 578 static void iwl_mvm_fwrt_dump_end(void *ctx) 579 { 580 struct iwl_mvm *mvm = ctx; 581 582 mutex_unlock(&mvm->mutex); 583 } 584 585 static bool iwl_mvm_fwrt_fw_running(void *ctx) 586 { 587 return iwl_mvm_firmware_running(ctx); 588 } 589 590 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 591 { 592 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 593 int ret; 594 595 mutex_lock(&mvm->mutex); 596 ret = iwl_mvm_send_cmd(mvm, host_cmd); 597 mutex_unlock(&mvm->mutex); 598 599 return ret; 600 } 601 602 static bool iwl_mvm_d3_debug_enable(void *ctx) 603 { 604 return IWL_MVM_D3_DEBUG; 605 } 606 607 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 608 .dump_start = iwl_mvm_fwrt_dump_start, 609 .dump_end = iwl_mvm_fwrt_dump_end, 610 .fw_running = iwl_mvm_fwrt_fw_running, 611 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 612 .d3_debug_enable = iwl_mvm_d3_debug_enable, 613 }; 614 615 static u8 iwl_mvm_lookup_notif_ver(struct iwl_mvm *mvm, u8 grp, u8 cmd, u8 def) 616 { 617 const struct iwl_fw_cmd_version *entry; 618 unsigned int i; 619 620 if (!mvm->fw->ucode_capa.cmd_versions || 621 !mvm->fw->ucode_capa.n_cmd_versions) 622 return def; 623 624 entry = mvm->fw->ucode_capa.cmd_versions; 625 for (i = 0; i < mvm->fw->ucode_capa.n_cmd_versions; i++, entry++) { 626 if (entry->group == grp && entry->cmd == cmd) { 627 if (entry->notif_ver == IWL_FW_CMD_VER_UNKNOWN) 628 return def; 629 return entry->notif_ver; 630 } 631 } 632 633 return def; 634 } 635 636 static struct iwl_op_mode * 637 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 638 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 639 { 640 struct ieee80211_hw *hw; 641 struct iwl_op_mode *op_mode; 642 struct iwl_mvm *mvm; 643 struct iwl_trans_config trans_cfg = {}; 644 static const u8 no_reclaim_cmds[] = { 645 TX_CMD, 646 }; 647 int err, scan_size; 648 u32 min_backoff; 649 enum iwl_amsdu_size rb_size_default; 650 651 /* 652 * We use IWL_MVM_STATION_COUNT to check the validity of the station 653 * index all over the driver - check that its value corresponds to the 654 * array size. 655 */ 656 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT); 657 658 /******************************** 659 * 1. Allocating and configuring HW data 660 ********************************/ 661 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 662 sizeof(struct iwl_mvm), 663 &iwl_mvm_hw_ops); 664 if (!hw) 665 return NULL; 666 667 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 668 669 if (cfg->max_tx_agg_size) 670 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 671 else 672 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 673 674 op_mode = hw->priv; 675 676 mvm = IWL_OP_MODE_GET_MVM(op_mode); 677 mvm->dev = trans->dev; 678 mvm->trans = trans; 679 mvm->cfg = cfg; 680 mvm->fw = fw; 681 mvm->hw = hw; 682 683 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 684 dbgfs_dir); 685 686 mvm->init_status = 0; 687 688 if (iwl_mvm_has_new_rx_api(mvm)) { 689 op_mode->ops = &iwl_mvm_ops_mq; 690 trans->rx_mpdu_cmd_hdr_size = 691 (trans->trans_cfg->device_family >= 692 IWL_DEVICE_FAMILY_AX210) ? 693 sizeof(struct iwl_rx_mpdu_desc) : 694 IWL_RX_DESC_SIZE_V1; 695 } else { 696 op_mode->ops = &iwl_mvm_ops; 697 trans->rx_mpdu_cmd_hdr_size = 698 sizeof(struct iwl_rx_mpdu_res_start); 699 700 if (WARN_ON(trans->num_rx_queues > 1)) 701 goto out_free; 702 } 703 704 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 705 706 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 707 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 708 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 709 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 710 711 mvm->sf_state = SF_UNINIT; 712 if (iwl_mvm_has_unified_ucode(mvm)) 713 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 714 else 715 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 716 mvm->drop_bcn_ap_mode = true; 717 718 mutex_init(&mvm->mutex); 719 spin_lock_init(&mvm->async_handlers_lock); 720 INIT_LIST_HEAD(&mvm->time_event_list); 721 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 722 INIT_LIST_HEAD(&mvm->async_handlers_list); 723 spin_lock_init(&mvm->time_event_lock); 724 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 725 726 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 727 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 728 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 729 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 730 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 731 INIT_LIST_HEAD(&mvm->add_stream_txqs); 732 733 init_waitqueue_head(&mvm->rx_sync_waitq); 734 735 atomic_set(&mvm->queue_sync_counter, 0); 736 737 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 738 739 spin_lock_init(&mvm->tcm.lock); 740 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 741 mvm->tcm.ts = jiffies; 742 mvm->tcm.ll_ts = jiffies; 743 mvm->tcm.uapsd_nonagg_ts = jiffies; 744 745 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 746 747 mvm->cmd_ver.d0i3_resp = 748 iwl_mvm_lookup_notif_ver(mvm, LEGACY_GROUP, D0I3_END_CMD, 0); 749 /* we only support version 1 */ 750 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 751 goto out_free; 752 753 /* 754 * Populate the state variables that the transport layer needs 755 * to know about. 756 */ 757 trans_cfg.op_mode = op_mode; 758 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 759 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 760 761 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 762 rb_size_default = IWL_AMSDU_2K; 763 else 764 rb_size_default = IWL_AMSDU_4K; 765 766 switch (iwlwifi_mod_params.amsdu_size) { 767 case IWL_AMSDU_DEF: 768 trans_cfg.rx_buf_size = rb_size_default; 769 break; 770 case IWL_AMSDU_4K: 771 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 772 break; 773 case IWL_AMSDU_8K: 774 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 775 break; 776 case IWL_AMSDU_12K: 777 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 778 break; 779 default: 780 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 781 iwlwifi_mod_params.amsdu_size); 782 trans_cfg.rx_buf_size = rb_size_default; 783 } 784 785 trans->wide_cmd_header = true; 786 trans_cfg.bc_table_dword = 787 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 788 789 trans_cfg.command_groups = iwl_mvm_groups; 790 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 791 792 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 793 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 794 trans_cfg.scd_set_active = true; 795 796 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 797 driver_data[2]); 798 799 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD; 800 801 /* Set a short watchdog for the command queue */ 802 trans_cfg.cmd_q_wdg_timeout = 803 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 804 805 snprintf(mvm->hw->wiphy->fw_version, 806 sizeof(mvm->hw->wiphy->fw_version), 807 "%s", fw->fw_version); 808 809 /* Configure transport layer */ 810 iwl_trans_configure(mvm->trans, &trans_cfg); 811 812 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 813 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 814 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 815 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 816 sizeof(trans->dbg.conf_tlv)); 817 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 818 819 trans->iml = mvm->fw->iml; 820 trans->iml_len = mvm->fw->iml_len; 821 822 /* set up notification wait support */ 823 iwl_notification_wait_init(&mvm->notif_wait); 824 825 /* Init phy db */ 826 mvm->phy_db = iwl_phy_db_init(trans); 827 if (!mvm->phy_db) { 828 IWL_ERR(mvm, "Cannot init phy_db\n"); 829 goto out_free; 830 } 831 832 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 833 mvm->trans->name, mvm->trans->hw_rev); 834 835 if (iwlwifi_mod_params.nvm_file) 836 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 837 else 838 IWL_DEBUG_EEPROM(mvm->trans->dev, 839 "working without external nvm file\n"); 840 841 err = iwl_trans_start_hw(mvm->trans); 842 if (err) 843 goto out_free; 844 845 mutex_lock(&mvm->mutex); 846 err = iwl_run_init_mvm_ucode(mvm, true); 847 if (err && err != -ERFKILL) 848 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 849 if (!iwlmvm_mod_params.init_dbg || !err) 850 iwl_mvm_stop_device(mvm); 851 mutex_unlock(&mvm->mutex); 852 if (err < 0) { 853 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); 854 goto out_free; 855 } 856 857 scan_size = iwl_mvm_scan_size(mvm); 858 859 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 860 if (!mvm->scan_cmd) 861 goto out_free; 862 863 /* Set EBS as successful as long as not stated otherwise by the FW. */ 864 mvm->last_ebs_successful = true; 865 866 err = iwl_mvm_mac_setup_register(mvm); 867 if (err) 868 goto out_free; 869 mvm->hw_registered = true; 870 871 min_backoff = iwl_mvm_min_backoff(mvm); 872 iwl_mvm_thermal_initialize(mvm, min_backoff); 873 874 iwl_mvm_dbgfs_register(mvm, dbgfs_dir); 875 876 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 877 memset(&mvm->rx_stats_v3, 0, 878 sizeof(struct mvm_statistics_rx_v3)); 879 else 880 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 881 882 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 883 884 return op_mode; 885 886 out_free: 887 iwl_fw_flush_dumps(&mvm->fwrt); 888 iwl_fw_runtime_free(&mvm->fwrt); 889 890 if (iwlmvm_mod_params.init_dbg) 891 return op_mode; 892 iwl_phy_db_free(mvm->phy_db); 893 kfree(mvm->scan_cmd); 894 iwl_trans_op_mode_leave(trans); 895 896 ieee80211_free_hw(mvm->hw); 897 return NULL; 898 } 899 900 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 901 { 902 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 903 int i; 904 905 iwl_mvm_leds_exit(mvm); 906 907 iwl_mvm_thermal_exit(mvm); 908 909 ieee80211_unregister_hw(mvm->hw); 910 911 kfree(mvm->scan_cmd); 912 kfree(mvm->mcast_filter_cmd); 913 mvm->mcast_filter_cmd = NULL; 914 915 kfree(mvm->error_recovery_buf); 916 mvm->error_recovery_buf = NULL; 917 918 iwl_trans_op_mode_leave(mvm->trans); 919 920 iwl_phy_db_free(mvm->phy_db); 921 mvm->phy_db = NULL; 922 923 kfree(mvm->nvm_data); 924 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 925 kfree(mvm->nvm_sections[i].data); 926 927 cancel_delayed_work_sync(&mvm->tcm.work); 928 929 iwl_fw_runtime_free(&mvm->fwrt); 930 mutex_destroy(&mvm->mutex); 931 932 ieee80211_free_hw(mvm->hw); 933 } 934 935 struct iwl_async_handler_entry { 936 struct list_head list; 937 struct iwl_rx_cmd_buffer rxb; 938 enum iwl_rx_handler_context context; 939 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 940 }; 941 942 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 943 { 944 struct iwl_async_handler_entry *entry, *tmp; 945 946 spin_lock_bh(&mvm->async_handlers_lock); 947 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 948 iwl_free_rxb(&entry->rxb); 949 list_del(&entry->list); 950 kfree(entry); 951 } 952 spin_unlock_bh(&mvm->async_handlers_lock); 953 } 954 955 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 956 { 957 struct iwl_mvm *mvm = 958 container_of(wk, struct iwl_mvm, async_handlers_wk); 959 struct iwl_async_handler_entry *entry, *tmp; 960 LIST_HEAD(local_list); 961 962 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 963 964 /* 965 * Sync with Rx path with a lock. Remove all the entries from this list, 966 * add them to a local one (lock free), and then handle them. 967 */ 968 spin_lock_bh(&mvm->async_handlers_lock); 969 list_splice_init(&mvm->async_handlers_list, &local_list); 970 spin_unlock_bh(&mvm->async_handlers_lock); 971 972 list_for_each_entry_safe(entry, tmp, &local_list, list) { 973 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 974 mutex_lock(&mvm->mutex); 975 entry->fn(mvm, &entry->rxb); 976 iwl_free_rxb(&entry->rxb); 977 list_del(&entry->list); 978 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 979 mutex_unlock(&mvm->mutex); 980 kfree(entry); 981 } 982 } 983 984 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 985 struct iwl_rx_packet *pkt) 986 { 987 struct iwl_fw_dbg_trigger_tlv *trig; 988 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 989 int i; 990 991 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 992 FW_DBG_TRIGGER_FW_NOTIF); 993 if (!trig) 994 return; 995 996 cmds_trig = (void *)trig->data; 997 998 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 999 /* don't collect on CMD 0 */ 1000 if (!cmds_trig->cmds[i].cmd_id) 1001 break; 1002 1003 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1004 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1005 continue; 1006 1007 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1008 "CMD 0x%02x.%02x received", 1009 pkt->hdr.group_id, pkt->hdr.cmd); 1010 break; 1011 } 1012 } 1013 1014 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1015 struct iwl_rx_cmd_buffer *rxb, 1016 struct iwl_rx_packet *pkt) 1017 { 1018 int i; 1019 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1020 1021 iwl_dbg_tlv_time_point(&mvm->fwrt, 1022 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1023 iwl_mvm_rx_check_trigger(mvm, pkt); 1024 1025 /* 1026 * Do the notification wait before RX handlers so 1027 * even if the RX handler consumes the RXB we have 1028 * access to it in the notification wait entry. 1029 */ 1030 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1031 1032 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1033 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1034 struct iwl_async_handler_entry *entry; 1035 1036 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1037 continue; 1038 1039 if (rx_h->context == RX_HANDLER_SYNC) { 1040 rx_h->fn(mvm, rxb); 1041 return; 1042 } 1043 1044 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1045 /* we can't do much... */ 1046 if (!entry) 1047 return; 1048 1049 entry->rxb._page = rxb_steal_page(rxb); 1050 entry->rxb._offset = rxb->_offset; 1051 entry->rxb._rx_page_order = rxb->_rx_page_order; 1052 entry->fn = rx_h->fn; 1053 entry->context = rx_h->context; 1054 spin_lock(&mvm->async_handlers_lock); 1055 list_add_tail(&entry->list, &mvm->async_handlers_list); 1056 spin_unlock(&mvm->async_handlers_lock); 1057 schedule_work(&mvm->async_handlers_wk); 1058 break; 1059 } 1060 } 1061 1062 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1063 struct napi_struct *napi, 1064 struct iwl_rx_cmd_buffer *rxb) 1065 { 1066 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1067 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1068 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1069 1070 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1071 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1072 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1073 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1074 else 1075 iwl_mvm_rx_common(mvm, rxb, pkt); 1076 } 1077 1078 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1079 struct napi_struct *napi, 1080 struct iwl_rx_cmd_buffer *rxb) 1081 { 1082 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1083 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1084 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1085 1086 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1087 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1088 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1089 RX_QUEUES_NOTIFICATION))) 1090 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1091 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1092 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1093 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1094 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1095 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1096 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1097 else 1098 iwl_mvm_rx_common(mvm, rxb, pkt); 1099 } 1100 1101 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1102 const struct iwl_device_cmd *cmd) 1103 { 1104 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1105 1106 /* 1107 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1108 * commands that need to block the Tx queues. 1109 */ 1110 iwl_trans_block_txq_ptrs(mvm->trans, false); 1111 } 1112 1113 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1114 { 1115 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1116 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1117 } 1118 1119 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1120 int hw_queue, bool start) 1121 { 1122 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1123 struct ieee80211_sta *sta; 1124 struct ieee80211_txq *txq; 1125 struct iwl_mvm_txq *mvmtxq; 1126 int i; 1127 unsigned long tid_bitmap; 1128 struct iwl_mvm_sta *mvmsta; 1129 u8 sta_id; 1130 1131 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1132 mvm->tvqm_info[hw_queue].sta_id : 1133 mvm->queue_info[hw_queue].ra_sta_id; 1134 1135 if (WARN_ON_ONCE(sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 1136 return; 1137 1138 rcu_read_lock(); 1139 1140 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1141 if (IS_ERR_OR_NULL(sta)) 1142 goto out; 1143 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1144 1145 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1146 if (!start) 1147 ieee80211_stop_queues(mvm->hw); 1148 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1149 ieee80211_wake_queues(mvm->hw); 1150 1151 goto out; 1152 } 1153 1154 if (iwl_mvm_has_new_tx_api(mvm)) { 1155 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1156 1157 tid_bitmap = BIT(tid); 1158 } else { 1159 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1160 } 1161 1162 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1163 int tid = i; 1164 1165 if (tid == IWL_MAX_TID_COUNT) 1166 tid = IEEE80211_NUM_TIDS; 1167 1168 txq = sta->txq[tid]; 1169 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1170 mvmtxq->stopped = !start; 1171 1172 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1173 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1174 } 1175 1176 out: 1177 rcu_read_unlock(); 1178 } 1179 1180 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1181 { 1182 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1183 } 1184 1185 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1186 { 1187 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1188 } 1189 1190 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1191 { 1192 bool state = iwl_mvm_is_radio_killed(mvm); 1193 1194 if (state) 1195 wake_up(&mvm->rx_sync_waitq); 1196 1197 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1198 } 1199 1200 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1201 { 1202 if (state) 1203 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1204 else 1205 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1206 1207 iwl_mvm_set_rfkill_state(mvm); 1208 } 1209 1210 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1211 { 1212 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1213 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1214 bool unified = iwl_mvm_has_unified_ucode(mvm); 1215 1216 if (state) 1217 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1218 else 1219 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1220 1221 iwl_mvm_set_rfkill_state(mvm); 1222 1223 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1224 if (rfkill_safe_init_done) 1225 iwl_abort_notification_waits(&mvm->notif_wait); 1226 1227 /* 1228 * Don't ask the transport to stop the firmware. We'll do it 1229 * after cfg80211 takes us down. 1230 */ 1231 if (unified) 1232 return false; 1233 1234 /* 1235 * Stop the device if we run OPERATIONAL firmware or if we are in the 1236 * middle of the calibrations. 1237 */ 1238 return state && rfkill_safe_init_done; 1239 } 1240 1241 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1242 { 1243 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1244 struct ieee80211_tx_info *info; 1245 1246 info = IEEE80211_SKB_CB(skb); 1247 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1248 ieee80211_free_txskb(mvm->hw, skb); 1249 } 1250 1251 struct iwl_mvm_reprobe { 1252 struct device *dev; 1253 struct work_struct work; 1254 }; 1255 1256 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1257 { 1258 struct iwl_mvm_reprobe *reprobe; 1259 1260 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1261 if (device_reprobe(reprobe->dev)) 1262 dev_err(reprobe->dev, "reprobe failed!\n"); 1263 kfree(reprobe); 1264 module_put(THIS_MODULE); 1265 } 1266 1267 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1268 { 1269 iwl_abort_notification_waits(&mvm->notif_wait); 1270 iwl_dbg_tlv_del_timers(mvm->trans); 1271 1272 /* 1273 * This is a bit racy, but worst case we tell mac80211 about 1274 * a stopped/aborted scan when that was already done which 1275 * is not a problem. It is necessary to abort any os scan 1276 * here because mac80211 requires having the scan cleared 1277 * before restarting. 1278 * We'll reset the scan_status to NONE in restart cleanup in 1279 * the next start() call from mac80211. If restart isn't called 1280 * (no fw restart) scan status will stay busy. 1281 */ 1282 iwl_mvm_report_scan_aborted(mvm); 1283 1284 /* 1285 * If we're restarting already, don't cycle restarts. 1286 * If INIT fw asserted, it will likely fail again. 1287 * If WoWLAN fw asserted, don't restart either, mac80211 1288 * can't recover this since we're already half suspended. 1289 */ 1290 if (!mvm->fw_restart && fw_error) { 1291 iwl_fw_error_collect(&mvm->fwrt); 1292 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1293 struct iwl_mvm_reprobe *reprobe; 1294 1295 IWL_ERR(mvm, 1296 "Firmware error during reconfiguration - reprobe!\n"); 1297 1298 /* 1299 * get a module reference to avoid doing this while unloading 1300 * anyway and to avoid scheduling a work with code that's 1301 * being removed. 1302 */ 1303 if (!try_module_get(THIS_MODULE)) { 1304 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1305 return; 1306 } 1307 1308 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1309 if (!reprobe) { 1310 module_put(THIS_MODULE); 1311 return; 1312 } 1313 reprobe->dev = mvm->trans->dev; 1314 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1315 schedule_work(&reprobe->work); 1316 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1317 &mvm->status)) { 1318 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1319 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1320 mvm->hw_registered && 1321 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1322 if (mvm->fw->ucode_capa.error_log_size) { 1323 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1324 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1325 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1326 1327 if (recover_buf) { 1328 mvm->error_recovery_buf = recover_buf; 1329 iwl_trans_read_mem_bytes(mvm->trans, 1330 src_addr, 1331 recover_buf, 1332 src_size); 1333 } 1334 } 1335 1336 iwl_fw_error_collect(&mvm->fwrt); 1337 1338 if (fw_error && mvm->fw_restart > 0) 1339 mvm->fw_restart--; 1340 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1341 ieee80211_restart_hw(mvm->hw); 1342 } 1343 } 1344 1345 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) 1346 { 1347 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1348 1349 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) 1350 iwl_mvm_dump_nic_error_log(mvm); 1351 1352 iwl_mvm_nic_restart(mvm, true); 1353 } 1354 1355 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1356 { 1357 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1358 1359 WARN_ON(1); 1360 iwl_mvm_nic_restart(mvm, true); 1361 } 1362 1363 #define IWL_MVM_COMMON_OPS \ 1364 /* these could be differentiated */ \ 1365 .async_cb = iwl_mvm_async_cb, \ 1366 .queue_full = iwl_mvm_stop_sw_queue, \ 1367 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1368 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1369 .free_skb = iwl_mvm_free_skb, \ 1370 .nic_error = iwl_mvm_nic_error, \ 1371 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1372 .nic_config = iwl_mvm_nic_config, \ 1373 /* as we only register one, these MUST be common! */ \ 1374 .start = iwl_op_mode_mvm_start, \ 1375 .stop = iwl_op_mode_mvm_stop 1376 1377 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1378 IWL_MVM_COMMON_OPS, 1379 .rx = iwl_mvm_rx, 1380 }; 1381 1382 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1383 struct napi_struct *napi, 1384 struct iwl_rx_cmd_buffer *rxb, 1385 unsigned int queue) 1386 { 1387 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1388 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1389 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1390 1391 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1392 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1393 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1394 RX_QUEUES_NOTIFICATION))) 1395 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1396 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1397 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1398 } 1399 1400 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1401 IWL_MVM_COMMON_OPS, 1402 .rx = iwl_mvm_rx_mq, 1403 .rx_rss = iwl_mvm_rx_mq_rss, 1404 }; 1405