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 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 23 * USA 24 * 25 * The full GNU General Public License is included in this distribution 26 * in the file called COPYING. 27 * 28 * Contact Information: 29 * Intel Linux Wireless <linuxwifi@intel.com> 30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 31 * 32 * BSD LICENSE 33 * 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 36 * Copyright(c) 2016 Intel Deutschland GmbH 37 * All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 43 * * Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * * Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in 47 * the documentation and/or other materials provided with the 48 * distribution. 49 * * Neither the name Intel Corporation nor the names of its 50 * contributors may be used to endorse or promote products derived 51 * from this software without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 64 * 65 *****************************************************************************/ 66 #include <linux/module.h> 67 #include <linux/vmalloc.h> 68 #include <net/mac80211.h> 69 70 #include "iwl-notif-wait.h" 71 #include "iwl-trans.h" 72 #include "iwl-op-mode.h" 73 #include "iwl-fw.h" 74 #include "iwl-debug.h" 75 #include "iwl-drv.h" 76 #include "iwl-modparams.h" 77 #include "mvm.h" 78 #include "iwl-phy-db.h" 79 #include "iwl-eeprom-parse.h" 80 #include "iwl-csr.h" 81 #include "iwl-io.h" 82 #include "iwl-prph.h" 83 #include "rs.h" 84 #include "fw-api-scan.h" 85 #include "time-event.h" 86 #include "fw-dbg.h" 87 #include "fw-api.h" 88 #include "fw-api-scan.h" 89 90 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 91 MODULE_DESCRIPTION(DRV_DESCRIPTION); 92 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); 93 MODULE_LICENSE("GPL"); 94 95 static const struct iwl_op_mode_ops iwl_mvm_ops; 96 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 97 98 struct iwl_mvm_mod_params iwlmvm_mod_params = { 99 .power_scheme = IWL_POWER_SCHEME_BPS, 100 .tfd_q_hang_detect = true 101 /* rest of fields are 0 by default */ 102 }; 103 104 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO); 105 MODULE_PARM_DESC(init_dbg, 106 "set to true to debug an ASSERT in INIT fw (default: false"); 107 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO); 108 MODULE_PARM_DESC(power_scheme, 109 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 110 module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect, 111 bool, S_IRUGO); 112 MODULE_PARM_DESC(tfd_q_hang_detect, 113 "TFD queues hang detection (default: true"); 114 115 /* 116 * module init and exit functions 117 */ 118 static int __init iwl_mvm_init(void) 119 { 120 int ret; 121 122 ret = iwl_mvm_rate_control_register(); 123 if (ret) { 124 pr_err("Unable to register rate control algorithm: %d\n", ret); 125 return ret; 126 } 127 128 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 129 130 if (ret) { 131 pr_err("Unable to register MVM op_mode: %d\n", ret); 132 iwl_mvm_rate_control_unregister(); 133 } 134 135 return ret; 136 } 137 module_init(iwl_mvm_init); 138 139 static void __exit iwl_mvm_exit(void) 140 { 141 iwl_opmode_deregister("iwlmvm"); 142 iwl_mvm_rate_control_unregister(); 143 } 144 module_exit(iwl_mvm_exit); 145 146 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 147 { 148 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 149 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 150 u32 reg_val = 0; 151 u32 phy_config = iwl_mvm_get_phy_config(mvm); 152 153 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 154 FW_PHY_CFG_RADIO_TYPE_POS; 155 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 156 FW_PHY_CFG_RADIO_STEP_POS; 157 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 158 FW_PHY_CFG_RADIO_DASH_POS; 159 160 /* SKU control */ 161 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) << 162 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP; 163 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) << 164 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH; 165 166 /* radio configuration */ 167 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 168 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 169 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 170 171 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 172 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 173 174 /* 175 * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and 176 * shouldn't be set to any non-zero value. The same is supposed to be 177 * true of the other HW, but unsetting them (such as the 7260) causes 178 * automatic tests to fail on seemingly unrelated errors. Need to 179 * further investigate this, but for now we'll separate cases. 180 */ 181 if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) 182 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 183 184 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 185 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | 186 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | 187 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 188 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 189 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 190 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 191 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI, 192 reg_val); 193 194 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 195 radio_cfg_step, radio_cfg_dash); 196 197 /* 198 * W/A : NIC is stuck in a reset state after Early PCIe power off 199 * (PCIe power is lost before PERST# is asserted), causing ME FW 200 * to lose ownership and not being able to obtain it back. 201 */ 202 if (!mvm->trans->cfg->apmg_not_supported) 203 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 204 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 205 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 206 } 207 208 /** 209 * enum iwl_rx_handler_context context for Rx handler 210 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 211 * which can't acquire mvm->mutex. 212 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 213 * (and only in this case!), it should be set as ASYNC. In that case, 214 * it will be called from a worker with mvm->mutex held. 215 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 216 * mutex itself, it will be called from a worker without mvm->mutex held. 217 */ 218 enum iwl_rx_handler_context { 219 RX_HANDLER_SYNC, 220 RX_HANDLER_ASYNC_LOCKED, 221 RX_HANDLER_ASYNC_UNLOCKED, 222 }; 223 224 /** 225 * struct iwl_rx_handlers handler for FW notification 226 * @cmd_id: command id 227 * @context: see &iwl_rx_handler_context 228 * @fn: the function is called when notification is received 229 */ 230 struct iwl_rx_handlers { 231 u16 cmd_id; 232 enum iwl_rx_handler_context context; 233 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 234 }; 235 236 #define RX_HANDLER(_cmd_id, _fn, _context) \ 237 { .cmd_id = _cmd_id, .fn = _fn, .context = _context } 238 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context) \ 239 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context } 240 241 /* 242 * Handlers for fw notifications 243 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 244 * This list should be in order of frequency for performance purposes. 245 * 246 * The handler can be one from three contexts, see &iwl_rx_handler_context 247 */ 248 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 249 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC), 250 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC), 251 252 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 253 RX_HANDLER_ASYNC_LOCKED), 254 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 255 RX_HANDLER_ASYNC_LOCKED), 256 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 257 RX_HANDLER_ASYNC_LOCKED), 258 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION, 259 iwl_mvm_rx_ant_coupling_notif, 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(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 267 RX_HANDLER_ASYNC_LOCKED), 268 269 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC), 270 271 RX_HANDLER(SCAN_ITERATION_COMPLETE, 272 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC), 273 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 274 iwl_mvm_rx_lmac_scan_complete_notif, 275 RX_HANDLER_ASYNC_LOCKED), 276 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found, 277 RX_HANDLER_SYNC), 278 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 279 RX_HANDLER_ASYNC_LOCKED), 280 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 281 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC), 282 283 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, 284 RX_HANDLER_SYNC), 285 286 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 287 RX_HANDLER_SYNC), 288 289 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC), 290 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 291 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC), 292 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 293 RX_HANDLER_ASYNC_LOCKED), 294 RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 295 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_LOCKED), 296 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 297 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC), 298 299 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 300 RX_HANDLER_ASYNC_LOCKED), 301 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 302 RX_HANDLER_SYNC), 303 RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler, 304 RX_HANDLER_ASYNC_LOCKED), 305 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 306 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC), 307 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 308 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC), 309 }; 310 #undef RX_HANDLER 311 #undef RX_HANDLER_GRP 312 313 /* Please keep this array *SORTED* by hex value. 314 * Access is done through binary search 315 */ 316 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 317 HCMD_NAME(MVM_ALIVE), 318 HCMD_NAME(REPLY_ERROR), 319 HCMD_NAME(ECHO_CMD), 320 HCMD_NAME(INIT_COMPLETE_NOTIF), 321 HCMD_NAME(PHY_CONTEXT_CMD), 322 HCMD_NAME(DBG_CFG), 323 HCMD_NAME(ANTENNA_COUPLING_NOTIFICATION), 324 HCMD_NAME(SCAN_CFG_CMD), 325 HCMD_NAME(SCAN_REQ_UMAC), 326 HCMD_NAME(SCAN_ABORT_UMAC), 327 HCMD_NAME(SCAN_COMPLETE_UMAC), 328 HCMD_NAME(TOF_CMD), 329 HCMD_NAME(TOF_NOTIFICATION), 330 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 331 HCMD_NAME(ADD_STA_KEY), 332 HCMD_NAME(ADD_STA), 333 HCMD_NAME(REMOVE_STA), 334 HCMD_NAME(FW_GET_ITEM_CMD), 335 HCMD_NAME(TX_CMD), 336 HCMD_NAME(SCD_QUEUE_CFG), 337 HCMD_NAME(TXPATH_FLUSH), 338 HCMD_NAME(MGMT_MCAST_KEY), 339 HCMD_NAME(WEP_KEY), 340 HCMD_NAME(SHARED_MEM_CFG), 341 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 342 HCMD_NAME(MAC_CONTEXT_CMD), 343 HCMD_NAME(TIME_EVENT_CMD), 344 HCMD_NAME(TIME_EVENT_NOTIFICATION), 345 HCMD_NAME(BINDING_CONTEXT_CMD), 346 HCMD_NAME(TIME_QUOTA_CMD), 347 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 348 HCMD_NAME(LQ_CMD), 349 HCMD_NAME(FW_PAGING_BLOCK_CMD), 350 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 351 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 352 HCMD_NAME(HOT_SPOT_CMD), 353 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 354 HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD), 355 HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD), 356 HCMD_NAME(BT_COEX_UPDATE_SW_BOOST), 357 HCMD_NAME(BT_COEX_UPDATE_CORUN_LUT), 358 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 359 HCMD_NAME(BT_COEX_CI), 360 HCMD_NAME(PHY_CONFIGURATION_CMD), 361 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 362 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 363 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 364 HCMD_NAME(SCAN_OFFLOAD_CONFIG_CMD), 365 HCMD_NAME(POWER_TABLE_CMD), 366 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 367 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 368 HCMD_NAME(DC2DC_CONFIG_CMD), 369 HCMD_NAME(NVM_ACCESS_CMD), 370 HCMD_NAME(SET_CALIB_DEFAULT_CMD), 371 HCMD_NAME(BEACON_NOTIFICATION), 372 HCMD_NAME(BEACON_TEMPLATE_CMD), 373 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 374 HCMD_NAME(BT_CONFIG), 375 HCMD_NAME(STATISTICS_CMD), 376 HCMD_NAME(STATISTICS_NOTIFICATION), 377 HCMD_NAME(EOSP_NOTIFICATION), 378 HCMD_NAME(REDUCE_TX_POWER_CMD), 379 HCMD_NAME(CARD_STATE_CMD), 380 HCMD_NAME(CARD_STATE_NOTIFICATION), 381 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 382 HCMD_NAME(TDLS_CONFIG_CMD), 383 HCMD_NAME(MAC_PM_POWER_TABLE), 384 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 385 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 386 HCMD_NAME(RSS_CONFIG_CMD), 387 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 388 HCMD_NAME(REPLY_RX_PHY_CMD), 389 HCMD_NAME(REPLY_RX_MPDU_CMD), 390 HCMD_NAME(BA_NOTIF), 391 HCMD_NAME(MCC_UPDATE_CMD), 392 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 393 HCMD_NAME(MARKER_CMD), 394 HCMD_NAME(BT_COEX_PRIO_TABLE), 395 HCMD_NAME(BT_COEX_PROT_ENV), 396 HCMD_NAME(BT_PROFILE_NOTIFICATION), 397 HCMD_NAME(BCAST_FILTER_CMD), 398 HCMD_NAME(MCAST_FILTER_CMD), 399 HCMD_NAME(REPLY_SF_CFG_CMD), 400 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 401 HCMD_NAME(D3_CONFIG_CMD), 402 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 403 HCMD_NAME(OFFLOADS_QUERY_CMD), 404 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD), 405 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 406 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER), 407 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 408 HCMD_NAME(WOWLAN_PATTERNS), 409 HCMD_NAME(WOWLAN_CONFIGURATION), 410 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 411 HCMD_NAME(WOWLAN_TKIP_PARAM), 412 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 413 HCMD_NAME(WOWLAN_GET_STATUSES), 414 HCMD_NAME(WOWLAN_TX_POWER_PER_DB), 415 HCMD_NAME(SCAN_ITERATION_COMPLETE), 416 HCMD_NAME(D0I3_END_CMD), 417 HCMD_NAME(LTR_CONFIG), 418 HCMD_NAME(REPLY_DEBUG_CMD), 419 }; 420 421 /* Please keep this array *SORTED* by hex value. 422 * Access is done through binary search 423 */ 424 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 425 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 426 HCMD_NAME(CTDP_CONFIG_CMD), 427 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 428 HCMD_NAME(CT_KILL_NOTIFICATION), 429 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 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_data_path_names[] = { 436 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 437 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 438 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 439 HCMD_NAME(RX_QUEUES_NOTIFICATION), 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_prot_offload_names[] = { 446 HCMD_NAME(STORED_BEACON_NTF), 447 }; 448 449 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 450 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 451 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 452 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 453 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 454 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 455 }; 456 457 /* this forward declaration can avoid to export the function */ 458 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 459 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk); 460 461 static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg) 462 { 463 const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs; 464 465 if (!pwr_tx_backoff) 466 return 0; 467 468 while (pwr_tx_backoff->pwr) { 469 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr) 470 return pwr_tx_backoff->backoff; 471 472 pwr_tx_backoff++; 473 } 474 475 return 0; 476 } 477 478 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work); 479 480 static struct iwl_op_mode * 481 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 482 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 483 { 484 struct ieee80211_hw *hw; 485 struct iwl_op_mode *op_mode; 486 struct iwl_mvm *mvm; 487 struct iwl_trans_config trans_cfg = {}; 488 static const u8 no_reclaim_cmds[] = { 489 TX_CMD, 490 }; 491 int err, scan_size; 492 u32 min_backoff; 493 494 /* 495 * We use IWL_MVM_STATION_COUNT to check the validity of the station 496 * index all over the driver - check that its value corresponds to the 497 * array size. 498 */ 499 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT); 500 501 /******************************** 502 * 1. Allocating and configuring HW data 503 ********************************/ 504 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 505 sizeof(struct iwl_mvm), 506 &iwl_mvm_hw_ops); 507 if (!hw) 508 return NULL; 509 510 if (cfg->max_rx_agg_size) 511 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size; 512 513 if (cfg->max_tx_agg_size) 514 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 515 516 op_mode = hw->priv; 517 518 mvm = IWL_OP_MODE_GET_MVM(op_mode); 519 mvm->dev = trans->dev; 520 mvm->trans = trans; 521 mvm->cfg = cfg; 522 mvm->fw = fw; 523 mvm->hw = hw; 524 525 if (iwl_mvm_has_new_rx_api(mvm)) { 526 op_mode->ops = &iwl_mvm_ops_mq; 527 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc); 528 } else { 529 op_mode->ops = &iwl_mvm_ops; 530 trans->rx_mpdu_cmd_hdr_size = 531 sizeof(struct iwl_rx_mpdu_res_start); 532 533 if (WARN_ON(trans->num_rx_queues > 1)) 534 goto out_free; 535 } 536 537 mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0; 538 539 mvm->aux_queue = 15; 540 mvm->first_agg_queue = 16; 541 mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1; 542 if (mvm->cfg->base_params->num_of_queues == 16) { 543 mvm->aux_queue = 11; 544 mvm->first_agg_queue = 12; 545 } 546 mvm->sf_state = SF_UNINIT; 547 mvm->cur_ucode = IWL_UCODE_INIT; 548 mvm->drop_bcn_ap_mode = true; 549 550 mutex_init(&mvm->mutex); 551 mutex_init(&mvm->d0i3_suspend_mutex); 552 spin_lock_init(&mvm->async_handlers_lock); 553 INIT_LIST_HEAD(&mvm->time_event_list); 554 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 555 INIT_LIST_HEAD(&mvm->async_handlers_list); 556 spin_lock_init(&mvm->time_event_lock); 557 spin_lock_init(&mvm->queue_info_lock); 558 559 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 560 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 561 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk); 562 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work); 563 INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk); 564 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 565 566 spin_lock_init(&mvm->d0i3_tx_lock); 567 spin_lock_init(&mvm->refs_lock); 568 skb_queue_head_init(&mvm->d0i3_tx); 569 init_waitqueue_head(&mvm->d0i3_exit_waitq); 570 571 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 572 573 /* 574 * Populate the state variables that the transport layer needs 575 * to know about. 576 */ 577 trans_cfg.op_mode = op_mode; 578 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 579 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 580 switch (iwlwifi_mod_params.amsdu_size) { 581 case IWL_AMSDU_4K: 582 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 583 break; 584 case IWL_AMSDU_8K: 585 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 586 break; 587 case IWL_AMSDU_12K: 588 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 589 break; 590 default: 591 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 592 iwlwifi_mod_params.amsdu_size); 593 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 594 } 595 trans_cfg.wide_cmd_header = fw_has_api(&mvm->fw->ucode_capa, 596 IWL_UCODE_TLV_API_WIDE_CMD_HDR); 597 598 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE) 599 trans_cfg.bc_table_dword = true; 600 601 trans_cfg.command_groups = iwl_mvm_groups; 602 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 603 604 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE; 605 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 606 trans_cfg.scd_set_active = true; 607 608 trans_cfg.sdio_adma_addr = fw->sdio_adma_addr; 609 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD; 610 611 /* Set a short watchdog for the command queue */ 612 trans_cfg.cmd_q_wdg_timeout = 613 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 614 615 snprintf(mvm->hw->wiphy->fw_version, 616 sizeof(mvm->hw->wiphy->fw_version), 617 "%s", fw->fw_version); 618 619 /* Configure transport layer */ 620 iwl_trans_configure(mvm->trans, &trans_cfg); 621 622 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 623 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv; 624 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num; 625 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv, 626 sizeof(trans->dbg_conf_tlv)); 627 trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv; 628 629 /* set up notification wait support */ 630 iwl_notification_wait_init(&mvm->notif_wait); 631 632 /* Init phy db */ 633 mvm->phy_db = iwl_phy_db_init(trans); 634 if (!mvm->phy_db) { 635 IWL_ERR(mvm, "Cannot init phy_db\n"); 636 goto out_free; 637 } 638 639 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 640 mvm->cfg->name, mvm->trans->hw_rev); 641 642 if (iwlwifi_mod_params.nvm_file) 643 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 644 else 645 IWL_DEBUG_EEPROM(mvm->trans->dev, 646 "working without external nvm file\n"); 647 648 if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name, 649 "not allowing power-up and not having nvm_file\n")) 650 goto out_free; 651 652 /* 653 * Even if nvm exists in the nvm_file driver should read again the nvm 654 * from the nic because there might be entries that exist in the OTP 655 * and not in the file. 656 * for nics with no_power_up_nic_in_init: rely completley on nvm_file 657 */ 658 if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) { 659 err = iwl_nvm_init(mvm, false); 660 if (err) 661 goto out_free; 662 } else { 663 err = iwl_trans_start_hw(mvm->trans); 664 if (err) 665 goto out_free; 666 667 mutex_lock(&mvm->mutex); 668 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE); 669 err = iwl_run_init_mvm_ucode(mvm, true); 670 if (!err || !iwlmvm_mod_params.init_dbg) 671 iwl_mvm_stop_device(mvm); 672 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE); 673 mutex_unlock(&mvm->mutex); 674 /* returns 0 if successful, 1 if success but in rfkill */ 675 if (err < 0 && !iwlmvm_mod_params.init_dbg) { 676 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); 677 goto out_free; 678 } 679 } 680 681 scan_size = iwl_mvm_scan_size(mvm); 682 683 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 684 if (!mvm->scan_cmd) 685 goto out_free; 686 687 /* Set EBS as successful as long as not stated otherwise by the FW. */ 688 mvm->last_ebs_successful = true; 689 690 err = iwl_mvm_mac_setup_register(mvm); 691 if (err) 692 goto out_free; 693 694 min_backoff = calc_min_backoff(trans, cfg); 695 iwl_mvm_thermal_initialize(mvm, min_backoff); 696 697 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir); 698 if (err) 699 goto out_unregister; 700 701 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 702 703 /* The transport always starts with a taken reference, we can 704 * release it now if d0i3 is supported */ 705 if (iwl_mvm_is_d0i3_supported(mvm)) 706 iwl_trans_unref(mvm->trans); 707 708 iwl_mvm_tof_init(mvm); 709 710 /* init RSS hash key */ 711 get_random_bytes(mvm->secret_key, sizeof(mvm->secret_key)); 712 713 return op_mode; 714 715 out_unregister: 716 ieee80211_unregister_hw(mvm->hw); 717 iwl_mvm_leds_exit(mvm); 718 iwl_mvm_thermal_exit(mvm); 719 out_free: 720 flush_delayed_work(&mvm->fw_dump_wk); 721 iwl_phy_db_free(mvm->phy_db); 722 kfree(mvm->scan_cmd); 723 if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name) 724 iwl_trans_op_mode_leave(trans); 725 ieee80211_free_hw(mvm->hw); 726 return NULL; 727 } 728 729 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 730 { 731 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 732 int i; 733 734 /* If d0i3 is supported, we have released the reference that 735 * the transport started with, so we should take it back now 736 * that we are leaving. 737 */ 738 if (iwl_mvm_is_d0i3_supported(mvm)) 739 iwl_trans_ref(mvm->trans); 740 741 iwl_mvm_leds_exit(mvm); 742 743 iwl_mvm_thermal_exit(mvm); 744 745 ieee80211_unregister_hw(mvm->hw); 746 747 kfree(mvm->scan_cmd); 748 kfree(mvm->mcast_filter_cmd); 749 mvm->mcast_filter_cmd = NULL; 750 751 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS) 752 kfree(mvm->d3_resume_sram); 753 #endif 754 755 iwl_trans_op_mode_leave(mvm->trans); 756 757 iwl_phy_db_free(mvm->phy_db); 758 mvm->phy_db = NULL; 759 760 iwl_free_nvm_data(mvm->nvm_data); 761 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 762 kfree(mvm->nvm_sections[i].data); 763 764 iwl_free_fw_paging(mvm); 765 766 iwl_mvm_tof_clean(mvm); 767 768 ieee80211_free_hw(mvm->hw); 769 } 770 771 struct iwl_async_handler_entry { 772 struct list_head list; 773 struct iwl_rx_cmd_buffer rxb; 774 enum iwl_rx_handler_context context; 775 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 776 }; 777 778 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 779 { 780 struct iwl_async_handler_entry *entry, *tmp; 781 782 spin_lock_bh(&mvm->async_handlers_lock); 783 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 784 iwl_free_rxb(&entry->rxb); 785 list_del(&entry->list); 786 kfree(entry); 787 } 788 spin_unlock_bh(&mvm->async_handlers_lock); 789 } 790 791 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 792 { 793 struct iwl_mvm *mvm = 794 container_of(wk, struct iwl_mvm, async_handlers_wk); 795 struct iwl_async_handler_entry *entry, *tmp; 796 struct list_head local_list; 797 798 INIT_LIST_HEAD(&local_list); 799 800 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 801 802 /* 803 * Sync with Rx path with a lock. Remove all the entries from this list, 804 * add them to a local one (lock free), and then handle them. 805 */ 806 spin_lock_bh(&mvm->async_handlers_lock); 807 list_splice_init(&mvm->async_handlers_list, &local_list); 808 spin_unlock_bh(&mvm->async_handlers_lock); 809 810 list_for_each_entry_safe(entry, tmp, &local_list, list) { 811 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 812 mutex_lock(&mvm->mutex); 813 entry->fn(mvm, &entry->rxb); 814 iwl_free_rxb(&entry->rxb); 815 list_del(&entry->list); 816 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 817 mutex_unlock(&mvm->mutex); 818 kfree(entry); 819 } 820 } 821 822 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 823 struct iwl_rx_packet *pkt) 824 { 825 struct iwl_fw_dbg_trigger_tlv *trig; 826 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 827 int i; 828 829 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF)) 830 return; 831 832 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF); 833 cmds_trig = (void *)trig->data; 834 835 if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig)) 836 return; 837 838 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 839 /* don't collect on CMD 0 */ 840 if (!cmds_trig->cmds[i].cmd_id) 841 break; 842 843 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 844 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 845 continue; 846 847 iwl_mvm_fw_dbg_collect_trig(mvm, trig, 848 "CMD 0x%02x.%02x received", 849 pkt->hdr.group_id, pkt->hdr.cmd); 850 break; 851 } 852 } 853 854 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 855 struct iwl_rx_cmd_buffer *rxb, 856 struct iwl_rx_packet *pkt) 857 { 858 int i; 859 860 iwl_mvm_rx_check_trigger(mvm, pkt); 861 862 /* 863 * Do the notification wait before RX handlers so 864 * even if the RX handler consumes the RXB we have 865 * access to it in the notification wait entry. 866 */ 867 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 868 869 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 870 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 871 struct iwl_async_handler_entry *entry; 872 873 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 874 continue; 875 876 if (rx_h->context == RX_HANDLER_SYNC) { 877 rx_h->fn(mvm, rxb); 878 return; 879 } 880 881 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 882 /* we can't do much... */ 883 if (!entry) 884 return; 885 886 entry->rxb._page = rxb_steal_page(rxb); 887 entry->rxb._offset = rxb->_offset; 888 entry->rxb._rx_page_order = rxb->_rx_page_order; 889 entry->fn = rx_h->fn; 890 entry->context = rx_h->context; 891 spin_lock(&mvm->async_handlers_lock); 892 list_add_tail(&entry->list, &mvm->async_handlers_list); 893 spin_unlock(&mvm->async_handlers_lock); 894 schedule_work(&mvm->async_handlers_wk); 895 break; 896 } 897 } 898 899 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 900 struct napi_struct *napi, 901 struct iwl_rx_cmd_buffer *rxb) 902 { 903 struct iwl_rx_packet *pkt = rxb_addr(rxb); 904 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 905 906 if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD)) 907 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 908 else if (pkt->hdr.cmd == FRAME_RELEASE) 909 iwl_mvm_rx_frame_release(mvm, rxb, 0); 910 else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD) 911 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 912 else 913 iwl_mvm_rx_common(mvm, rxb, pkt); 914 } 915 916 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 917 struct napi_struct *napi, 918 struct iwl_rx_cmd_buffer *rxb) 919 { 920 struct iwl_rx_packet *pkt = rxb_addr(rxb); 921 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 922 923 if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD)) 924 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 925 else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD) 926 iwl_mvm_rx_phy_cmd_mq(mvm, rxb); 927 else if (unlikely(pkt->hdr.group_id == DATA_PATH_GROUP && 928 pkt->hdr.cmd == RX_QUEUES_NOTIFICATION)) 929 iwl_mvm_rx_queue_notif(mvm, rxb, 0); 930 else 931 iwl_mvm_rx_common(mvm, rxb, pkt); 932 } 933 934 void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq) 935 { 936 int q; 937 938 if (WARN_ON_ONCE(!mq)) 939 return; 940 941 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) { 942 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) { 943 IWL_DEBUG_TX_QUEUES(mvm, 944 "mac80211 %d already stopped\n", q); 945 continue; 946 } 947 948 ieee80211_stop_queue(mvm->hw, q); 949 } 950 } 951 952 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 953 const struct iwl_device_cmd *cmd) 954 { 955 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 956 957 /* 958 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 959 * commands that need to block the Tx queues. 960 */ 961 iwl_trans_block_txq_ptrs(mvm->trans, false); 962 } 963 964 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 965 { 966 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 967 unsigned long mq; 968 969 spin_lock_bh(&mvm->queue_info_lock); 970 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211; 971 spin_unlock_bh(&mvm->queue_info_lock); 972 973 iwl_mvm_stop_mac_queues(mvm, mq); 974 } 975 976 void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq) 977 { 978 int q; 979 980 if (WARN_ON_ONCE(!mq)) 981 return; 982 983 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) { 984 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) { 985 IWL_DEBUG_TX_QUEUES(mvm, 986 "mac80211 %d still stopped\n", q); 987 continue; 988 } 989 990 ieee80211_wake_queue(mvm->hw, q); 991 } 992 } 993 994 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 995 { 996 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 997 unsigned long mq; 998 999 spin_lock_bh(&mvm->queue_info_lock); 1000 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211; 1001 spin_unlock_bh(&mvm->queue_info_lock); 1002 1003 iwl_mvm_start_mac_queues(mvm, mq); 1004 } 1005 1006 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1007 { 1008 if (state) 1009 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1010 else 1011 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1012 1013 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); 1014 } 1015 1016 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1017 { 1018 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1019 bool calibrating = ACCESS_ONCE(mvm->calibrating); 1020 1021 if (state) 1022 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1023 else 1024 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1025 1026 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); 1027 1028 /* iwl_run_init_mvm_ucode is waiting for results, abort it */ 1029 if (calibrating) 1030 iwl_abort_notification_waits(&mvm->notif_wait); 1031 1032 /* 1033 * Stop the device if we run OPERATIONAL firmware or if we are in the 1034 * middle of the calibrations. 1035 */ 1036 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating); 1037 } 1038 1039 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1040 { 1041 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1042 struct ieee80211_tx_info *info; 1043 1044 info = IEEE80211_SKB_CB(skb); 1045 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1046 ieee80211_free_txskb(mvm->hw, skb); 1047 } 1048 1049 struct iwl_mvm_reprobe { 1050 struct device *dev; 1051 struct work_struct work; 1052 }; 1053 1054 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1055 { 1056 struct iwl_mvm_reprobe *reprobe; 1057 1058 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1059 if (device_reprobe(reprobe->dev)) 1060 dev_err(reprobe->dev, "reprobe failed!\n"); 1061 kfree(reprobe); 1062 module_put(THIS_MODULE); 1063 } 1064 1065 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work) 1066 { 1067 struct iwl_mvm *mvm = 1068 container_of(work, struct iwl_mvm, fw_dump_wk.work); 1069 1070 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT)) 1071 return; 1072 1073 mutex_lock(&mvm->mutex); 1074 1075 /* stop recording */ 1076 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) { 1077 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100); 1078 } else { 1079 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0); 1080 /* wait before we collect the data till the DBGC stop */ 1081 udelay(100); 1082 } 1083 1084 iwl_mvm_fw_error_dump(mvm); 1085 1086 /* start recording again if the firmware is not crashed */ 1087 WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) && 1088 mvm->fw->dbg_dest_tlv && 1089 iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf)); 1090 1091 mutex_unlock(&mvm->mutex); 1092 1093 iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT); 1094 } 1095 1096 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1097 { 1098 iwl_abort_notification_waits(&mvm->notif_wait); 1099 1100 /* 1101 * This is a bit racy, but worst case we tell mac80211 about 1102 * a stopped/aborted scan when that was already done which 1103 * is not a problem. It is necessary to abort any os scan 1104 * here because mac80211 requires having the scan cleared 1105 * before restarting. 1106 * We'll reset the scan_status to NONE in restart cleanup in 1107 * the next start() call from mac80211. If restart isn't called 1108 * (no fw restart) scan status will stay busy. 1109 */ 1110 iwl_mvm_report_scan_aborted(mvm); 1111 1112 /* 1113 * If we're restarting already, don't cycle restarts. 1114 * If INIT fw asserted, it will likely fail again. 1115 * If WoWLAN fw asserted, don't restart either, mac80211 1116 * can't recover this since we're already half suspended. 1117 */ 1118 if (!mvm->restart_fw && fw_error) { 1119 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert, 1120 NULL); 1121 } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, 1122 &mvm->status)) { 1123 struct iwl_mvm_reprobe *reprobe; 1124 1125 IWL_ERR(mvm, 1126 "Firmware error during reconfiguration - reprobe!\n"); 1127 1128 /* 1129 * get a module reference to avoid doing this while unloading 1130 * anyway and to avoid scheduling a work with code that's 1131 * being removed. 1132 */ 1133 if (!try_module_get(THIS_MODULE)) { 1134 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1135 return; 1136 } 1137 1138 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1139 if (!reprobe) { 1140 module_put(THIS_MODULE); 1141 return; 1142 } 1143 reprobe->dev = mvm->trans->dev; 1144 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1145 schedule_work(&reprobe->work); 1146 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) { 1147 /* don't let the transport/FW power down */ 1148 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); 1149 1150 if (fw_error && mvm->restart_fw > 0) 1151 mvm->restart_fw--; 1152 ieee80211_restart_hw(mvm->hw); 1153 } 1154 } 1155 1156 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) 1157 { 1158 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1159 1160 iwl_mvm_dump_nic_error_log(mvm); 1161 1162 iwl_mvm_nic_restart(mvm, true); 1163 } 1164 1165 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1166 { 1167 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1168 1169 WARN_ON(1); 1170 iwl_mvm_nic_restart(mvm, true); 1171 } 1172 1173 struct iwl_d0i3_iter_data { 1174 struct iwl_mvm *mvm; 1175 struct ieee80211_vif *connected_vif; 1176 u8 ap_sta_id; 1177 u8 vif_count; 1178 u8 offloading_tid; 1179 bool disable_offloading; 1180 }; 1181 1182 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm, 1183 struct ieee80211_vif *vif, 1184 struct iwl_d0i3_iter_data *iter_data) 1185 { 1186 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1187 struct ieee80211_sta *ap_sta; 1188 struct iwl_mvm_sta *mvmsta; 1189 u32 available_tids = 0; 1190 u8 tid; 1191 1192 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION || 1193 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) 1194 return false; 1195 1196 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]); 1197 if (IS_ERR_OR_NULL(ap_sta)) 1198 return false; 1199 1200 mvmsta = iwl_mvm_sta_from_mac80211(ap_sta); 1201 spin_lock_bh(&mvmsta->lock); 1202 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1203 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 1204 1205 /* 1206 * in case of pending tx packets, don't use this tid 1207 * for offloading in order to prevent reuse of the same 1208 * qos seq counters. 1209 */ 1210 if (iwl_mvm_tid_queued(tid_data)) 1211 continue; 1212 1213 if (tid_data->state != IWL_AGG_OFF) 1214 continue; 1215 1216 available_tids |= BIT(tid); 1217 } 1218 spin_unlock_bh(&mvmsta->lock); 1219 1220 /* 1221 * disallow protocol offloading if we have no available tid 1222 * (with no pending frames and no active aggregation, 1223 * as we don't handle "holes" properly - the scheduler needs the 1224 * frame's seq number and TFD index to match) 1225 */ 1226 if (!available_tids) 1227 return true; 1228 1229 /* for simplicity, just use the first available tid */ 1230 iter_data->offloading_tid = ffs(available_tids) - 1; 1231 return false; 1232 } 1233 1234 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac, 1235 struct ieee80211_vif *vif) 1236 { 1237 struct iwl_d0i3_iter_data *data = _data; 1238 struct iwl_mvm *mvm = data->mvm; 1239 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1240 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; 1241 1242 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr); 1243 if (vif->type != NL80211_IFTYPE_STATION || 1244 !vif->bss_conf.assoc) 1245 return; 1246 1247 /* 1248 * in case of pending tx packets or active aggregations, 1249 * avoid offloading features in order to prevent reuse of 1250 * the same qos seq counters. 1251 */ 1252 if (iwl_mvm_disallow_offloading(mvm, vif, data)) 1253 data->disable_offloading = true; 1254 1255 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags); 1256 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, 1257 false, flags); 1258 1259 /* 1260 * on init/association, mvm already configures POWER_TABLE_CMD 1261 * and REPLY_MCAST_FILTER_CMD, so currently don't 1262 * reconfigure them (we might want to use different 1263 * params later on, though). 1264 */ 1265 data->ap_sta_id = mvmvif->ap_sta_id; 1266 data->vif_count++; 1267 1268 /* 1269 * no new commands can be sent at this stage, so it's safe 1270 * to save the vif pointer during d0i3 entrance. 1271 */ 1272 data->connected_vif = vif; 1273 } 1274 1275 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm, 1276 struct iwl_wowlan_config_cmd *cmd, 1277 struct iwl_d0i3_iter_data *iter_data) 1278 { 1279 struct ieee80211_sta *ap_sta; 1280 struct iwl_mvm_sta *mvm_ap_sta; 1281 1282 if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT) 1283 return; 1284 1285 rcu_read_lock(); 1286 1287 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]); 1288 if (IS_ERR_OR_NULL(ap_sta)) 1289 goto out; 1290 1291 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); 1292 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported; 1293 cmd->offloading_tid = iter_data->offloading_tid; 1294 cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING | 1295 ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON; 1296 /* 1297 * The d0i3 uCode takes care of the nonqos counters, 1298 * so configure only the qos seq ones. 1299 */ 1300 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd); 1301 out: 1302 rcu_read_unlock(); 1303 } 1304 1305 int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode) 1306 { 1307 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1308 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; 1309 int ret; 1310 struct iwl_d0i3_iter_data d0i3_iter_data = { 1311 .mvm = mvm, 1312 }; 1313 struct iwl_wowlan_config_cmd wowlan_config_cmd = { 1314 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME | 1315 IWL_WOWLAN_WAKEUP_BEACON_MISS | 1316 IWL_WOWLAN_WAKEUP_LINK_CHANGE), 1317 }; 1318 struct iwl_d3_manager_config d3_cfg_cmd = { 1319 .min_sleep_time = cpu_to_le32(1000), 1320 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR), 1321 }; 1322 1323 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n"); 1324 1325 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR)) 1326 return -EINVAL; 1327 1328 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 1329 1330 /* 1331 * iwl_mvm_ref_sync takes a reference before checking the flag. 1332 * so by checking there is no held reference we prevent a state 1333 * in which iwl_mvm_ref_sync continues successfully while we 1334 * configure the firmware to enter d0i3 1335 */ 1336 if (iwl_mvm_ref_taken(mvm)) { 1337 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n"); 1338 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 1339 wake_up(&mvm->d0i3_exit_waitq); 1340 return 1; 1341 } 1342 1343 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 1344 IEEE80211_IFACE_ITER_NORMAL, 1345 iwl_mvm_enter_d0i3_iterator, 1346 &d0i3_iter_data); 1347 if (d0i3_iter_data.vif_count == 1) { 1348 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id; 1349 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading; 1350 } else { 1351 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1); 1352 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 1353 mvm->d0i3_offloading = false; 1354 } 1355 1356 /* make sure we have no running tx while configuring the seqno */ 1357 synchronize_net(); 1358 1359 /* Flush the hw queues, in case something got queued during entry */ 1360 ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags); 1361 if (ret) 1362 return ret; 1363 1364 /* configure wowlan configuration only if needed */ 1365 if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) { 1366 /* wake on beacons only if beacon storing isn't supported */ 1367 if (!fw_has_capa(&mvm->fw->ucode_capa, 1368 IWL_UCODE_TLV_CAPA_BEACON_STORING)) 1369 wowlan_config_cmd.wakeup_filter |= 1370 cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING); 1371 1372 iwl_mvm_wowlan_config_key_params(mvm, 1373 d0i3_iter_data.connected_vif, 1374 true, flags); 1375 1376 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, 1377 &d0i3_iter_data); 1378 1379 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags, 1380 sizeof(wowlan_config_cmd), 1381 &wowlan_config_cmd); 1382 if (ret) 1383 return ret; 1384 } 1385 1386 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, 1387 flags | CMD_MAKE_TRANS_IDLE, 1388 sizeof(d3_cfg_cmd), &d3_cfg_cmd); 1389 } 1390 1391 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac, 1392 struct ieee80211_vif *vif) 1393 { 1394 struct iwl_mvm *mvm = _data; 1395 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO; 1396 1397 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr); 1398 if (vif->type != NL80211_IFTYPE_STATION || 1399 !vif->bss_conf.assoc) 1400 return; 1401 1402 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags); 1403 } 1404 1405 struct iwl_mvm_d0i3_exit_work_iter_data { 1406 struct iwl_mvm *mvm; 1407 struct iwl_wowlan_status *status; 1408 u32 wakeup_reasons; 1409 }; 1410 1411 static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac, 1412 struct ieee80211_vif *vif) 1413 { 1414 struct iwl_mvm_d0i3_exit_work_iter_data *data = _data; 1415 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1416 u32 reasons = data->wakeup_reasons; 1417 1418 /* consider only the relevant station interface */ 1419 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1420 data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id) 1421 return; 1422 1423 if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH) 1424 iwl_mvm_connection_loss(data->mvm, vif, "D0i3"); 1425 else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON) 1426 ieee80211_beacon_loss(vif); 1427 else 1428 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status); 1429 } 1430 1431 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq) 1432 { 1433 struct ieee80211_sta *sta = NULL; 1434 struct iwl_mvm_sta *mvm_ap_sta; 1435 int i; 1436 bool wake_queues = false; 1437 1438 lockdep_assert_held(&mvm->mutex); 1439 1440 spin_lock_bh(&mvm->d0i3_tx_lock); 1441 1442 if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT) 1443 goto out; 1444 1445 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n"); 1446 1447 /* get the sta in order to update seq numbers and re-enqueue skbs */ 1448 sta = rcu_dereference_protected( 1449 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id], 1450 lockdep_is_held(&mvm->mutex)); 1451 1452 if (IS_ERR_OR_NULL(sta)) { 1453 sta = NULL; 1454 goto out; 1455 } 1456 1457 if (mvm->d0i3_offloading && qos_seq) { 1458 /* update qos seq numbers if offloading was enabled */ 1459 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta); 1460 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1461 u16 seq = le16_to_cpu(qos_seq[i]); 1462 /* firmware stores last-used one, we store next one */ 1463 seq += 0x10; 1464 mvm_ap_sta->tid_data[i].seq_number = seq; 1465 } 1466 } 1467 out: 1468 /* re-enqueue (or drop) all packets */ 1469 while (!skb_queue_empty(&mvm->d0i3_tx)) { 1470 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx); 1471 1472 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta)) 1473 ieee80211_free_txskb(mvm->hw, skb); 1474 1475 /* if the skb_queue is not empty, we need to wake queues */ 1476 wake_queues = true; 1477 } 1478 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); 1479 wake_up(&mvm->d0i3_exit_waitq); 1480 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; 1481 if (wake_queues) 1482 ieee80211_wake_queues(mvm->hw); 1483 1484 spin_unlock_bh(&mvm->d0i3_tx_lock); 1485 } 1486 1487 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk) 1488 { 1489 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work); 1490 struct iwl_host_cmd get_status_cmd = { 1491 .id = WOWLAN_GET_STATUSES, 1492 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB, 1493 }; 1494 struct iwl_mvm_d0i3_exit_work_iter_data iter_data = { 1495 .mvm = mvm, 1496 }; 1497 1498 struct iwl_wowlan_status *status; 1499 int ret; 1500 u32 wakeup_reasons = 0; 1501 __le16 *qos_seq = NULL; 1502 1503 mutex_lock(&mvm->mutex); 1504 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd); 1505 if (ret) 1506 goto out; 1507 1508 if (!get_status_cmd.resp_pkt) 1509 goto out; 1510 1511 status = (void *)get_status_cmd.resp_pkt->data; 1512 wakeup_reasons = le32_to_cpu(status->wakeup_reasons); 1513 qos_seq = status->qos_seq_ctr; 1514 1515 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons); 1516 1517 iter_data.wakeup_reasons = wakeup_reasons; 1518 iter_data.status = status; 1519 ieee80211_iterate_active_interfaces(mvm->hw, 1520 IEEE80211_IFACE_ITER_NORMAL, 1521 iwl_mvm_d0i3_exit_work_iter, 1522 &iter_data); 1523 out: 1524 iwl_mvm_d0i3_enable_tx(mvm, qos_seq); 1525 1526 IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n", 1527 wakeup_reasons); 1528 1529 /* qos_seq might point inside resp_pkt, so free it only now */ 1530 if (get_status_cmd.resp_pkt) 1531 iwl_free_resp(&get_status_cmd); 1532 1533 /* the FW might have updated the regdomain */ 1534 iwl_mvm_update_changed_regdom(mvm); 1535 1536 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK); 1537 mutex_unlock(&mvm->mutex); 1538 } 1539 1540 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm) 1541 { 1542 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE | 1543 CMD_WAKE_UP_TRANS; 1544 int ret; 1545 1546 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n"); 1547 1548 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR)) 1549 return -EINVAL; 1550 1551 mutex_lock(&mvm->d0i3_suspend_mutex); 1552 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) { 1553 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n"); 1554 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags); 1555 mutex_unlock(&mvm->d0i3_suspend_mutex); 1556 return 0; 1557 } 1558 mutex_unlock(&mvm->d0i3_suspend_mutex); 1559 1560 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL); 1561 if (ret) 1562 goto out; 1563 1564 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 1565 IEEE80211_IFACE_ITER_NORMAL, 1566 iwl_mvm_exit_d0i3_iterator, 1567 mvm); 1568 out: 1569 schedule_work(&mvm->d0i3_exit_work); 1570 return ret; 1571 } 1572 1573 int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode) 1574 { 1575 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1576 1577 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK); 1578 return _iwl_mvm_exit_d0i3(mvm); 1579 } 1580 1581 #define IWL_MVM_COMMON_OPS \ 1582 /* these could be differentiated */ \ 1583 .async_cb = iwl_mvm_async_cb, \ 1584 .queue_full = iwl_mvm_stop_sw_queue, \ 1585 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1586 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1587 .free_skb = iwl_mvm_free_skb, \ 1588 .nic_error = iwl_mvm_nic_error, \ 1589 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1590 .nic_config = iwl_mvm_nic_config, \ 1591 .enter_d0i3 = iwl_mvm_enter_d0i3, \ 1592 .exit_d0i3 = iwl_mvm_exit_d0i3, \ 1593 /* as we only register one, these MUST be common! */ \ 1594 .start = iwl_op_mode_mvm_start, \ 1595 .stop = iwl_op_mode_mvm_stop 1596 1597 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1598 IWL_MVM_COMMON_OPS, 1599 .rx = iwl_mvm_rx, 1600 }; 1601 1602 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1603 struct napi_struct *napi, 1604 struct iwl_rx_cmd_buffer *rxb, 1605 unsigned int queue) 1606 { 1607 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1608 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1609 1610 if (unlikely(pkt->hdr.cmd == FRAME_RELEASE)) 1611 iwl_mvm_rx_frame_release(mvm, rxb, queue); 1612 else if (unlikely(pkt->hdr.cmd == RX_QUEUES_NOTIFICATION && 1613 pkt->hdr.group_id == DATA_PATH_GROUP)) 1614 iwl_mvm_rx_queue_notif(mvm, rxb, queue); 1615 else 1616 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1617 } 1618 1619 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1620 IWL_MVM_COMMON_OPS, 1621 .rx = iwl_mvm_rx_mq, 1622 .rx_rss = iwl_mvm_rx_mq_rss, 1623 }; 1624