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8ca151b5 JB |
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 | * | |
51368bf7 | 8 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
4fb06283 | 9 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
8ca151b5 JB |
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 | |
410dc5aa | 26 | * in the file called COPYING. |
8ca151b5 JB |
27 | * |
28 | * Contact Information: | |
29 | * Intel Linux Wireless <ilw@linux.intel.com> | |
30 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
31 | * | |
32 | * BSD LICENSE | |
33 | * | |
51368bf7 | 34 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
4fb06283 | 35 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
8ca151b5 JB |
36 | * All rights reserved. |
37 | * | |
38 | * Redistribution and use in source and binary forms, with or without | |
39 | * modification, are permitted provided that the following conditions | |
40 | * are met: | |
41 | * | |
42 | * * Redistributions of source code must retain the above copyright | |
43 | * notice, this list of conditions and the following disclaimer. | |
44 | * * Redistributions in binary form must reproduce the above copyright | |
45 | * notice, this list of conditions and the following disclaimer in | |
46 | * the documentation and/or other materials provided with the | |
47 | * distribution. | |
48 | * * Neither the name Intel Corporation nor the names of its | |
49 | * contributors may be used to endorse or promote products derived | |
50 | * from this software without specific prior written permission. | |
51 | * | |
52 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
53 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
54 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
55 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
56 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
57 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
58 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
59 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
60 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
61 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
62 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
63 | * | |
64 | *****************************************************************************/ | |
65 | #include <linux/module.h> | |
1bd3cbc1 | 66 | #include <linux/vmalloc.h> |
8ca151b5 JB |
67 | #include <net/mac80211.h> |
68 | ||
69 | #include "iwl-notif-wait.h" | |
70 | #include "iwl-trans.h" | |
71 | #include "iwl-op-mode.h" | |
72 | #include "iwl-fw.h" | |
73 | #include "iwl-debug.h" | |
74 | #include "iwl-drv.h" | |
75 | #include "iwl-modparams.h" | |
76 | #include "mvm.h" | |
77 | #include "iwl-phy-db.h" | |
78 | #include "iwl-eeprom-parse.h" | |
79 | #include "iwl-csr.h" | |
80 | #include "iwl-io.h" | |
81 | #include "iwl-prph.h" | |
82 | #include "rs.h" | |
83 | #include "fw-api-scan.h" | |
84 | #include "time-event.h" | |
2f89a5d7 | 85 | #include "fw-dbg.h" |
39bdb17e SD |
86 | #include "fw-api.h" |
87 | #include "fw-api-scan.h" | |
8ca151b5 | 88 | |
8ca151b5 | 89 | #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" |
8ca151b5 | 90 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
8ca151b5 JB |
91 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
92 | MODULE_LICENSE("GPL"); | |
93 | ||
94 | static const struct iwl_op_mode_ops iwl_mvm_ops; | |
0316d30e | 95 | static const struct iwl_op_mode_ops iwl_mvm_ops_mq; |
8ca151b5 JB |
96 | |
97 | struct iwl_mvm_mod_params iwlmvm_mod_params = { | |
98 | .power_scheme = IWL_POWER_SCHEME_BPS, | |
ce71c2f7 | 99 | .tfd_q_hang_detect = true |
8ca151b5 JB |
100 | /* rest of fields are 0 by default */ |
101 | }; | |
102 | ||
103 | module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO); | |
104 | MODULE_PARM_DESC(init_dbg, | |
105 | "set to true to debug an ASSERT in INIT fw (default: false"); | |
106 | module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO); | |
107 | MODULE_PARM_DESC(power_scheme, | |
108 | "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); | |
ce71c2f7 EG |
109 | module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect, |
110 | bool, S_IRUGO); | |
111 | MODULE_PARM_DESC(tfd_q_hang_detect, | |
112 | "TFD queues hang detection (default: true"); | |
8ca151b5 JB |
113 | |
114 | /* | |
115 | * module init and exit functions | |
116 | */ | |
117 | static int __init iwl_mvm_init(void) | |
118 | { | |
119 | int ret; | |
120 | ||
121 | ret = iwl_mvm_rate_control_register(); | |
122 | if (ret) { | |
123 | pr_err("Unable to register rate control algorithm: %d\n", ret); | |
124 | return ret; | |
125 | } | |
126 | ||
127 | ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); | |
128 | ||
129 | if (ret) { | |
130 | pr_err("Unable to register MVM op_mode: %d\n", ret); | |
131 | iwl_mvm_rate_control_unregister(); | |
132 | } | |
133 | ||
134 | return ret; | |
135 | } | |
136 | module_init(iwl_mvm_init); | |
137 | ||
138 | static void __exit iwl_mvm_exit(void) | |
139 | { | |
140 | iwl_opmode_deregister("iwlmvm"); | |
141 | iwl_mvm_rate_control_unregister(); | |
142 | } | |
143 | module_exit(iwl_mvm_exit); | |
144 | ||
145 | static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) | |
146 | { | |
147 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
148 | u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; | |
149 | u32 reg_val = 0; | |
a0544272 MH |
150 | u32 phy_config = iwl_mvm_get_phy_config(mvm); |
151 | ||
152 | radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> | |
153 | FW_PHY_CFG_RADIO_TYPE_POS; | |
154 | radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> | |
155 | FW_PHY_CFG_RADIO_STEP_POS; | |
156 | radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> | |
157 | FW_PHY_CFG_RADIO_DASH_POS; | |
8ca151b5 JB |
158 | |
159 | /* SKU control */ | |
160 | reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) << | |
161 | CSR_HW_IF_CONFIG_REG_POS_MAC_STEP; | |
162 | reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) << | |
163 | CSR_HW_IF_CONFIG_REG_POS_MAC_DASH; | |
164 | ||
165 | /* radio configuration */ | |
166 | reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; | |
167 | reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; | |
168 | reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; | |
169 | ||
170 | WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & | |
171 | ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); | |
172 | ||
9b1fcc11 LK |
173 | /* |
174 | * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and | |
175 | * shouldn't be set to any non-zero value. The same is supposed to be | |
176 | * true of the other HW, but unsetting them (such as the 7260) causes | |
177 | * automatic tests to fail on seemingly unrelated errors. Need to | |
178 | * further investigate this, but for now we'll separate cases. | |
179 | */ | |
180 | if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) | |
181 | reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; | |
8ca151b5 | 182 | |
e139dc4a LE |
183 | iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, |
184 | CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | | |
185 | CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | | |
186 | CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | | |
187 | CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | | |
188 | CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | | |
189 | CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | | |
190 | CSR_HW_IF_CONFIG_REG_BIT_MAC_SI, | |
191 | reg_val); | |
8ca151b5 JB |
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 | */ | |
95411d04 | 201 | if (!mvm->trans->cfg->apmg_not_supported) |
3073d8c0 EH |
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); | |
8ca151b5 JB |
205 | } |
206 | ||
207 | struct iwl_rx_handlers { | |
1230b16b | 208 | u16 cmd_id; |
8ca151b5 | 209 | bool async; |
0416841d | 210 | void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); |
8ca151b5 JB |
211 | }; |
212 | ||
213 | #define RX_HANDLER(_cmd_id, _fn, _async) \ | |
214 | { .cmd_id = _cmd_id , .fn = _fn , .async = _async } | |
1230b16b AS |
215 | #define RX_HANDLER_GRP(_grp, _cmd, _fn, _async) \ |
216 | { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .async = _async } | |
8ca151b5 JB |
217 | |
218 | /* | |
219 | * Handlers for fw notifications | |
220 | * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME | |
221 | * This list should be in order of frequency for performance purposes. | |
222 | * | |
223 | * The handler can be SYNC - this means that it will be called in the Rx path | |
224 | * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and | |
225 | * only in this case!), it should be set as ASYNC. In that case, it will be | |
226 | * called from a worker with mvm->mutex held. | |
227 | */ | |
228 | static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { | |
8ca151b5 JB |
229 | RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false), |
230 | RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false), | |
8ca151b5 | 231 | |
f421f9c3 | 232 | RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true), |
bd3398e2 | 233 | RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true), |
9ee718aa | 234 | RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true), |
b9fae2d5 EG |
235 | RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION, |
236 | iwl_mvm_rx_ant_coupling_notif, true), | |
f421f9c3 | 237 | |
497b49d2 | 238 | RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false), |
8ba2d7a1 | 239 | RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, true), |
497b49d2 | 240 | |
3e56eadf JB |
241 | RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false), |
242 | ||
e5d74646 | 243 | RX_HANDLER(SCAN_ITERATION_COMPLETE, |
6e56f01d | 244 | iwl_mvm_rx_lmac_scan_iter_complete_notif, false), |
35a000b7 | 245 | RX_HANDLER(SCAN_OFFLOAD_COMPLETE, |
6e56f01d LC |
246 | iwl_mvm_rx_lmac_scan_complete_notif, true), |
247 | RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found, | |
35a000b7 | 248 | false), |
d2496221 DS |
249 | RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, |
250 | true), | |
ee9219b2 AS |
251 | RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, |
252 | iwl_mvm_rx_umac_scan_iter_complete_notif, false), | |
497b49d2 | 253 | |
8ca151b5 JB |
254 | RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false), |
255 | ||
d64048ed HG |
256 | RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, |
257 | false), | |
258 | ||
8ca151b5 | 259 | RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false), |
175a70b7 AB |
260 | RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, |
261 | iwl_mvm_power_uapsd_misbehaving_ap_notif, false), | |
ea9af24d | 262 | RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true), |
09eef330 AE |
263 | RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, |
264 | iwl_mvm_temp_notif, true), | |
ea9af24d | 265 | |
1d3c3f63 AN |
266 | RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, |
267 | true), | |
30269c12 | 268 | RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false), |
ce792918 | 269 | RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler, true), |
1d3c3f63 | 270 | |
8ca151b5 JB |
271 | }; |
272 | #undef RX_HANDLER | |
1230b16b | 273 | #undef RX_HANDLER_GRP |
39bdb17e SD |
274 | |
275 | /* Please keep this array *SORTED* by hex value. | |
276 | * Access is done through binary search | |
277 | */ | |
278 | static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { | |
279 | HCMD_NAME(MVM_ALIVE), | |
280 | HCMD_NAME(REPLY_ERROR), | |
281 | HCMD_NAME(ECHO_CMD), | |
282 | HCMD_NAME(INIT_COMPLETE_NOTIF), | |
283 | HCMD_NAME(PHY_CONTEXT_CMD), | |
284 | HCMD_NAME(DBG_CFG), | |
285 | HCMD_NAME(ANTENNA_COUPLING_NOTIFICATION), | |
286 | HCMD_NAME(SCAN_CFG_CMD), | |
287 | HCMD_NAME(SCAN_REQ_UMAC), | |
288 | HCMD_NAME(SCAN_ABORT_UMAC), | |
289 | HCMD_NAME(SCAN_COMPLETE_UMAC), | |
290 | HCMD_NAME(TOF_CMD), | |
291 | HCMD_NAME(TOF_NOTIFICATION), | |
292 | HCMD_NAME(ADD_STA_KEY), | |
293 | HCMD_NAME(ADD_STA), | |
294 | HCMD_NAME(REMOVE_STA), | |
295 | HCMD_NAME(FW_GET_ITEM_CMD), | |
296 | HCMD_NAME(TX_CMD), | |
297 | HCMD_NAME(SCD_QUEUE_CFG), | |
298 | HCMD_NAME(TXPATH_FLUSH), | |
299 | HCMD_NAME(MGMT_MCAST_KEY), | |
300 | HCMD_NAME(WEP_KEY), | |
301 | HCMD_NAME(SHARED_MEM_CFG), | |
302 | HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), | |
303 | HCMD_NAME(MAC_CONTEXT_CMD), | |
304 | HCMD_NAME(TIME_EVENT_CMD), | |
305 | HCMD_NAME(TIME_EVENT_NOTIFICATION), | |
306 | HCMD_NAME(BINDING_CONTEXT_CMD), | |
307 | HCMD_NAME(TIME_QUOTA_CMD), | |
308 | HCMD_NAME(NON_QOS_TX_COUNTER_CMD), | |
309 | HCMD_NAME(LQ_CMD), | |
310 | HCMD_NAME(FW_PAGING_BLOCK_CMD), | |
311 | HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), | |
312 | HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), | |
313 | HCMD_NAME(HOT_SPOT_CMD), | |
314 | HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), | |
315 | HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD), | |
316 | HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD), | |
317 | HCMD_NAME(BT_COEX_UPDATE_SW_BOOST), | |
318 | HCMD_NAME(BT_COEX_UPDATE_CORUN_LUT), | |
319 | HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), | |
320 | HCMD_NAME(BT_COEX_CI), | |
321 | HCMD_NAME(PHY_CONFIGURATION_CMD), | |
322 | HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), | |
323 | HCMD_NAME(SCAN_OFFLOAD_COMPLETE), | |
324 | HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), | |
325 | HCMD_NAME(SCAN_OFFLOAD_CONFIG_CMD), | |
326 | HCMD_NAME(POWER_TABLE_CMD), | |
327 | HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), | |
328 | HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), | |
329 | HCMD_NAME(DC2DC_CONFIG_CMD), | |
330 | HCMD_NAME(NVM_ACCESS_CMD), | |
331 | HCMD_NAME(SET_CALIB_DEFAULT_CMD), | |
332 | HCMD_NAME(BEACON_NOTIFICATION), | |
333 | HCMD_NAME(BEACON_TEMPLATE_CMD), | |
334 | HCMD_NAME(TX_ANT_CONFIGURATION_CMD), | |
335 | HCMD_NAME(BT_CONFIG), | |
336 | HCMD_NAME(STATISTICS_CMD), | |
337 | HCMD_NAME(STATISTICS_NOTIFICATION), | |
338 | HCMD_NAME(EOSP_NOTIFICATION), | |
339 | HCMD_NAME(REDUCE_TX_POWER_CMD), | |
340 | HCMD_NAME(CARD_STATE_CMD), | |
341 | HCMD_NAME(CARD_STATE_NOTIFICATION), | |
342 | HCMD_NAME(MISSED_BEACONS_NOTIFICATION), | |
343 | HCMD_NAME(TDLS_CONFIG_CMD), | |
344 | HCMD_NAME(MAC_PM_POWER_TABLE), | |
345 | HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), | |
346 | HCMD_NAME(MFUART_LOAD_NOTIFICATION), | |
347 | HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), | |
348 | HCMD_NAME(REPLY_RX_PHY_CMD), | |
349 | HCMD_NAME(REPLY_RX_MPDU_CMD), | |
350 | HCMD_NAME(BA_NOTIF), | |
351 | HCMD_NAME(MCC_UPDATE_CMD), | |
352 | HCMD_NAME(MCC_CHUB_UPDATE_CMD), | |
353 | HCMD_NAME(MARKER_CMD), | |
354 | HCMD_NAME(BT_COEX_PRIO_TABLE), | |
355 | HCMD_NAME(BT_COEX_PROT_ENV), | |
356 | HCMD_NAME(BT_PROFILE_NOTIFICATION), | |
357 | HCMD_NAME(BCAST_FILTER_CMD), | |
358 | HCMD_NAME(MCAST_FILTER_CMD), | |
359 | HCMD_NAME(REPLY_SF_CFG_CMD), | |
360 | HCMD_NAME(REPLY_BEACON_FILTERING_CMD), | |
361 | HCMD_NAME(D3_CONFIG_CMD), | |
362 | HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), | |
363 | HCMD_NAME(OFFLOADS_QUERY_CMD), | |
364 | HCMD_NAME(REMOTE_WAKE_CONFIG_CMD), | |
365 | HCMD_NAME(MATCH_FOUND_NOTIFICATION), | |
366 | HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER), | |
367 | HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), | |
368 | HCMD_NAME(WOWLAN_PATTERNS), | |
369 | HCMD_NAME(WOWLAN_CONFIGURATION), | |
370 | HCMD_NAME(WOWLAN_TSC_RSC_PARAM), | |
371 | HCMD_NAME(WOWLAN_TKIP_PARAM), | |
372 | HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), | |
373 | HCMD_NAME(WOWLAN_GET_STATUSES), | |
374 | HCMD_NAME(WOWLAN_TX_POWER_PER_DB), | |
375 | HCMD_NAME(SCAN_ITERATION_COMPLETE), | |
376 | HCMD_NAME(D0I3_END_CMD), | |
377 | HCMD_NAME(LTR_CONFIG), | |
378 | HCMD_NAME(REPLY_DEBUG_CMD), | |
8ca151b5 | 379 | }; |
39bdb17e SD |
380 | |
381 | /* Please keep this array *SORTED* by hex value. | |
382 | * Access is done through binary search | |
383 | */ | |
384 | static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { | |
385 | HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), | |
386 | HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), | |
387 | }; | |
388 | ||
389 | static const struct iwl_hcmd_arr iwl_mvm_groups[] = { | |
390 | [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), | |
391 | [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), | |
392 | [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), | |
393 | }; | |
394 | ||
8ca151b5 JB |
395 | |
396 | /* this forward declaration can avoid to export the function */ | |
397 | static void iwl_mvm_async_handlers_wk(struct work_struct *wk); | |
37577fe2 | 398 | static void iwl_mvm_d0i3_exit_work(struct work_struct *wk); |
8ca151b5 | 399 | |
0c0e2c71 IY |
400 | static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg) |
401 | { | |
402 | const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs; | |
403 | ||
404 | if (!pwr_tx_backoff) | |
405 | return 0; | |
406 | ||
407 | while (pwr_tx_backoff->pwr) { | |
408 | if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr) | |
409 | return pwr_tx_backoff->backoff; | |
410 | ||
411 | pwr_tx_backoff++; | |
412 | } | |
413 | ||
414 | return 0; | |
415 | } | |
416 | ||
4bfa47f3 EG |
417 | static void iwl_mvm_fw_error_dump_wk(struct work_struct *work); |
418 | ||
8ca151b5 JB |
419 | static struct iwl_op_mode * |
420 | iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, | |
421 | const struct iwl_fw *fw, struct dentry *dbgfs_dir) | |
422 | { | |
423 | struct ieee80211_hw *hw; | |
424 | struct iwl_op_mode *op_mode; | |
425 | struct iwl_mvm *mvm; | |
426 | struct iwl_trans_config trans_cfg = {}; | |
427 | static const u8 no_reclaim_cmds[] = { | |
428 | TX_CMD, | |
429 | }; | |
430 | int err, scan_size; | |
0c0e2c71 | 431 | u32 min_backoff; |
8ca151b5 | 432 | |
c4d83271 EG |
433 | /* |
434 | * We use IWL_MVM_STATION_COUNT to check the validity of the station | |
435 | * index all over the driver - check that its value corresponds to the | |
436 | * array size. | |
437 | */ | |
438 | BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT); | |
439 | ||
8ca151b5 JB |
440 | /******************************** |
441 | * 1. Allocating and configuring HW data | |
442 | ********************************/ | |
443 | hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + | |
444 | sizeof(struct iwl_mvm), | |
445 | &iwl_mvm_hw_ops); | |
446 | if (!hw) | |
447 | return NULL; | |
448 | ||
745160ee OG |
449 | if (cfg->max_rx_agg_size) |
450 | hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size; | |
451 | ||
77d96730 GG |
452 | if (cfg->max_tx_agg_size) |
453 | hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; | |
454 | ||
8ca151b5 | 455 | op_mode = hw->priv; |
8ca151b5 JB |
456 | |
457 | mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
458 | mvm->dev = trans->dev; | |
459 | mvm->trans = trans; | |
460 | mvm->cfg = cfg; | |
461 | mvm->fw = fw; | |
462 | mvm->hw = hw; | |
463 | ||
0316d30e JB |
464 | if (iwl_mvm_has_new_rx_api(mvm)) { |
465 | op_mode->ops = &iwl_mvm_ops_mq; | |
466 | } else { | |
467 | op_mode->ops = &iwl_mvm_ops; | |
468 | ||
469 | if (WARN_ON(trans->num_rx_queues > 1)) | |
470 | goto out_free; | |
471 | } | |
472 | ||
291aa7c4 EH |
473 | mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0; |
474 | ||
19e737c9 EL |
475 | mvm->aux_queue = 15; |
476 | mvm->first_agg_queue = 16; | |
477 | mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1; | |
478 | if (mvm->cfg->base_params->num_of_queues == 16) { | |
479 | mvm->aux_queue = 11; | |
480 | mvm->first_agg_queue = 12; | |
481 | } | |
1f3b0ff8 | 482 | mvm->sf_state = SF_UNINIT; |
7b358f06 | 483 | mvm->cur_ucode = IWL_UCODE_INIT; |
19e737c9 | 484 | |
8ca151b5 | 485 | mutex_init(&mvm->mutex); |
d15a747f | 486 | mutex_init(&mvm->d0i3_suspend_mutex); |
8ca151b5 JB |
487 | spin_lock_init(&mvm->async_handlers_lock); |
488 | INIT_LIST_HEAD(&mvm->time_event_list); | |
b112889c | 489 | INIT_LIST_HEAD(&mvm->aux_roc_te_list); |
8ca151b5 JB |
490 | INIT_LIST_HEAD(&mvm->async_handlers_list); |
491 | spin_lock_init(&mvm->time_event_lock); | |
4ecafae9 | 492 | spin_lock_init(&mvm->queue_info_lock); |
8ca151b5 JB |
493 | |
494 | INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); | |
495 | INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); | |
496 | INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk); | |
37577fe2 | 497 | INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work); |
d2709ad7 | 498 | INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk); |
1d3c3f63 | 499 | INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); |
8ca151b5 | 500 | |
b2492501 | 501 | spin_lock_init(&mvm->d0i3_tx_lock); |
576eeee9 | 502 | spin_lock_init(&mvm->refs_lock); |
b2492501 AN |
503 | skb_queue_head_init(&mvm->d0i3_tx); |
504 | init_waitqueue_head(&mvm->d0i3_exit_waitq); | |
505 | ||
8ca151b5 JB |
506 | SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); |
507 | ||
508 | /* | |
509 | * Populate the state variables that the transport layer needs | |
510 | * to know about. | |
511 | */ | |
512 | trans_cfg.op_mode = op_mode; | |
513 | trans_cfg.no_reclaim_cmds = no_reclaim_cmds; | |
514 | trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); | |
6c4fbcbc EG |
515 | switch (iwlwifi_mod_params.amsdu_size) { |
516 | case IWL_AMSDU_4K: | |
517 | trans_cfg.rx_buf_size = IWL_AMSDU_4K; | |
518 | break; | |
519 | case IWL_AMSDU_8K: | |
520 | trans_cfg.rx_buf_size = IWL_AMSDU_8K; | |
521 | break; | |
522 | case IWL_AMSDU_12K: | |
523 | trans_cfg.rx_buf_size = IWL_AMSDU_12K; | |
524 | break; | |
525 | default: | |
526 | pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, | |
527 | iwlwifi_mod_params.amsdu_size); | |
528 | trans_cfg.rx_buf_size = IWL_AMSDU_4K; | |
529 | } | |
ab02165c AE |
530 | trans_cfg.wide_cmd_header = fw_has_api(&mvm->fw->ucode_capa, |
531 | IWL_UCODE_TLV_API_WIDE_CMD_HDR); | |
8ca151b5 | 532 | |
25b9ea5c | 533 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE) |
8ca151b5 JB |
534 | trans_cfg.bc_table_dword = true; |
535 | ||
39bdb17e SD |
536 | trans_cfg.command_groups = iwl_mvm_groups; |
537 | trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); | |
8ca151b5 JB |
538 | |
539 | trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE; | |
b2d81db7 | 540 | trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; |
3a736bcb | 541 | trans_cfg.scd_set_active = true; |
8ca151b5 | 542 | |
b4821767 LK |
543 | trans_cfg.sdio_adma_addr = fw->sdio_adma_addr; |
544 | ||
4cf677fd EG |
545 | /* Set a short watchdog for the command queue */ |
546 | trans_cfg.cmd_q_wdg_timeout = | |
5d42e7b2 | 547 | iwl_mvm_get_wd_timeout(mvm, NULL, false, true); |
4cf677fd | 548 | |
8ca151b5 JB |
549 | snprintf(mvm->hw->wiphy->fw_version, |
550 | sizeof(mvm->hw->wiphy->fw_version), | |
551 | "%s", fw->fw_version); | |
552 | ||
553 | /* Configure transport layer */ | |
554 | iwl_trans_configure(mvm->trans, &trans_cfg); | |
555 | ||
556 | trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; | |
557 | trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start); | |
09e350f7 LK |
558 | trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv; |
559 | trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num; | |
560 | memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv, | |
561 | sizeof(trans->dbg_conf_tlv)); | |
d2709ad7 | 562 | trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv; |
8ca151b5 JB |
563 | |
564 | /* set up notification wait support */ | |
565 | iwl_notification_wait_init(&mvm->notif_wait); | |
566 | ||
567 | /* Init phy db */ | |
568 | mvm->phy_db = iwl_phy_db_init(trans); | |
569 | if (!mvm->phy_db) { | |
570 | IWL_ERR(mvm, "Cannot init phy_db\n"); | |
571 | goto out_free; | |
572 | } | |
573 | ||
574 | IWL_INFO(mvm, "Detected %s, REV=0x%X\n", | |
575 | mvm->cfg->name, mvm->trans->hw_rev); | |
576 | ||
0c0e2c71 IY |
577 | min_backoff = calc_min_backoff(trans, cfg); |
578 | iwl_mvm_tt_initialize(mvm, min_backoff); | |
4fb06283 EH |
579 | |
580 | if (iwlwifi_mod_params.nvm_file) | |
e02a9d60 | 581 | mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; |
4fb06283 EH |
582 | else |
583 | IWL_DEBUG_EEPROM(mvm->trans->dev, | |
584 | "working without external nvm file\n"); | |
9ee718aa | 585 | |
e02a9d60 | 586 | if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name, |
14b485f0 EH |
587 | "not allowing power-up and not having nvm_file\n")) |
588 | goto out_free; | |
589 | ||
81a67e32 | 590 | /* |
0ade579c | 591 | * Even if nvm exists in the nvm_file driver should read again the nvm |
14b485f0 EH |
592 | * from the nic because there might be entries that exist in the OTP |
593 | * and not in the file. | |
594 | * for nics with no_power_up_nic_in_init: rely completley on nvm_file | |
81a67e32 | 595 | */ |
e02a9d60 | 596 | if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) { |
14b485f0 | 597 | err = iwl_nvm_init(mvm, false); |
8c678ed4 EP |
598 | if (err) |
599 | goto out_free; | |
81a67e32 EL |
600 | } else { |
601 | err = iwl_trans_start_hw(mvm->trans); | |
602 | if (err) | |
603 | goto out_free; | |
604 | ||
605 | mutex_lock(&mvm->mutex); | |
606 | err = iwl_run_init_mvm_ucode(mvm, true); | |
b93b1fe3 LK |
607 | if (!err || !iwlmvm_mod_params.init_dbg) |
608 | iwl_trans_stop_device(trans); | |
81a67e32 EL |
609 | mutex_unlock(&mvm->mutex); |
610 | /* returns 0 if successful, 1 if success but in rfkill */ | |
611 | if (err < 0 && !iwlmvm_mod_params.init_dbg) { | |
612 | IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); | |
613 | goto out_free; | |
614 | } | |
8ca151b5 JB |
615 | } |
616 | ||
d2496221 | 617 | scan_size = iwl_mvm_scan_size(mvm); |
fb98be5e | 618 | |
8ca151b5 JB |
619 | mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); |
620 | if (!mvm->scan_cmd) | |
621 | goto out_free; | |
622 | ||
5a4b2afa HD |
623 | /* Set EBS as successful as long as not stated otherwise by the FW. */ |
624 | mvm->last_ebs_successful = true; | |
625 | ||
8ca151b5 JB |
626 | err = iwl_mvm_mac_setup_register(mvm); |
627 | if (err) | |
628 | goto out_free; | |
629 | ||
630 | err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir); | |
631 | if (err) | |
632 | goto out_unregister; | |
633 | ||
3848ab66 MG |
634 | memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); |
635 | ||
a42b2af3 LC |
636 | /* rpm starts with a taken reference, we can release it now */ |
637 | iwl_trans_unref(mvm->trans); | |
7498cf4c | 638 | |
ce792918 GG |
639 | iwl_mvm_tof_init(mvm); |
640 | ||
8ca151b5 JB |
641 | return op_mode; |
642 | ||
643 | out_unregister: | |
644 | ieee80211_unregister_hw(mvm->hw); | |
91b0d119 | 645 | iwl_mvm_leds_exit(mvm); |
8ca151b5 | 646 | out_free: |
dbf73d4a | 647 | flush_delayed_work(&mvm->fw_dump_wk); |
8ca151b5 JB |
648 | iwl_phy_db_free(mvm->phy_db); |
649 | kfree(mvm->scan_cmd); | |
e02a9d60 | 650 | if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name) |
a4082843 | 651 | iwl_trans_op_mode_leave(trans); |
8ca151b5 JB |
652 | ieee80211_free_hw(mvm->hw); |
653 | return NULL; | |
654 | } | |
655 | ||
656 | static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) | |
657 | { | |
658 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
659 | int i; | |
660 | ||
661 | iwl_mvm_leds_exit(mvm); | |
662 | ||
9ee718aa EL |
663 | iwl_mvm_tt_exit(mvm); |
664 | ||
8ca151b5 JB |
665 | ieee80211_unregister_hw(mvm->hw); |
666 | ||
667 | kfree(mvm->scan_cmd); | |
e59647ea EP |
668 | kfree(mvm->mcast_filter_cmd); |
669 | mvm->mcast_filter_cmd = NULL; | |
8ca151b5 | 670 | |
afc66bb7 JB |
671 | #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS) |
672 | kfree(mvm->d3_resume_sram); | |
673 | #endif | |
674 | ||
a4082843 | 675 | iwl_trans_op_mode_leave(mvm->trans); |
8ca151b5 JB |
676 | |
677 | iwl_phy_db_free(mvm->phy_db); | |
678 | mvm->phy_db = NULL; | |
679 | ||
8ca151b5 | 680 | iwl_free_nvm_data(mvm->nvm_data); |
ae2b21b0 | 681 | for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) |
8ca151b5 JB |
682 | kfree(mvm->nvm_sections[i].data); |
683 | ||
ce792918 GG |
684 | iwl_mvm_tof_clean(mvm); |
685 | ||
8ca151b5 JB |
686 | ieee80211_free_hw(mvm->hw); |
687 | } | |
688 | ||
689 | struct iwl_async_handler_entry { | |
690 | struct list_head list; | |
691 | struct iwl_rx_cmd_buffer rxb; | |
0416841d | 692 | void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); |
8ca151b5 JB |
693 | }; |
694 | ||
695 | void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) | |
696 | { | |
697 | struct iwl_async_handler_entry *entry, *tmp; | |
698 | ||
699 | spin_lock_bh(&mvm->async_handlers_lock); | |
700 | list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { | |
701 | iwl_free_rxb(&entry->rxb); | |
702 | list_del(&entry->list); | |
703 | kfree(entry); | |
704 | } | |
705 | spin_unlock_bh(&mvm->async_handlers_lock); | |
706 | } | |
707 | ||
708 | static void iwl_mvm_async_handlers_wk(struct work_struct *wk) | |
709 | { | |
710 | struct iwl_mvm *mvm = | |
711 | container_of(wk, struct iwl_mvm, async_handlers_wk); | |
712 | struct iwl_async_handler_entry *entry, *tmp; | |
713 | struct list_head local_list; | |
714 | ||
715 | INIT_LIST_HEAD(&local_list); | |
716 | ||
717 | /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ | |
718 | mutex_lock(&mvm->mutex); | |
719 | ||
720 | /* | |
721 | * Sync with Rx path with a lock. Remove all the entries from this list, | |
722 | * add them to a local one (lock free), and then handle them. | |
723 | */ | |
724 | spin_lock_bh(&mvm->async_handlers_lock); | |
725 | list_splice_init(&mvm->async_handlers_list, &local_list); | |
726 | spin_unlock_bh(&mvm->async_handlers_lock); | |
727 | ||
728 | list_for_each_entry_safe(entry, tmp, &local_list, list) { | |
0416841d | 729 | entry->fn(mvm, &entry->rxb); |
8ca151b5 JB |
730 | iwl_free_rxb(&entry->rxb); |
731 | list_del(&entry->list); | |
732 | kfree(entry); | |
733 | } | |
734 | mutex_unlock(&mvm->mutex); | |
735 | } | |
736 | ||
917f39bb EG |
737 | static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, |
738 | struct iwl_rx_packet *pkt) | |
739 | { | |
740 | struct iwl_fw_dbg_trigger_tlv *trig; | |
741 | struct iwl_fw_dbg_trigger_cmd *cmds_trig; | |
917f39bb EG |
742 | int i; |
743 | ||
744 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF)) | |
745 | return; | |
746 | ||
747 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF); | |
748 | cmds_trig = (void *)trig->data; | |
749 | ||
750 | if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig)) | |
751 | return; | |
752 | ||
753 | for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { | |
754 | /* don't collect on CMD 0 */ | |
755 | if (!cmds_trig->cmds[i].cmd_id) | |
756 | break; | |
757 | ||
0ab66e6d SS |
758 | if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || |
759 | cmds_trig->cmds[i].group_id != pkt->hdr.group_id) | |
917f39bb EG |
760 | continue; |
761 | ||
5d4f929e | 762 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, |
0ab66e6d SS |
763 | "CMD 0x%02x.%02x received", |
764 | pkt->hdr.group_id, pkt->hdr.cmd); | |
917f39bb EG |
765 | break; |
766 | } | |
767 | } | |
768 | ||
0316d30e JB |
769 | static void iwl_mvm_rx_common(struct iwl_mvm *mvm, |
770 | struct iwl_rx_cmd_buffer *rxb, | |
771 | struct iwl_rx_packet *pkt) | |
8ca151b5 | 772 | { |
0316d30e | 773 | int i; |
1738d60b | 774 | |
917f39bb EG |
775 | iwl_mvm_rx_check_trigger(mvm, pkt); |
776 | ||
8ca151b5 JB |
777 | /* |
778 | * Do the notification wait before RX handlers so | |
779 | * even if the RX handler consumes the RXB we have | |
780 | * access to it in the notification wait entry. | |
781 | */ | |
782 | iwl_notification_wait_notify(&mvm->notif_wait, pkt); | |
783 | ||
784 | for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { | |
785 | const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; | |
36eed56a EG |
786 | struct iwl_async_handler_entry *entry; |
787 | ||
1230b16b | 788 | if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) |
36eed56a EG |
789 | continue; |
790 | ||
0416841d JB |
791 | if (!rx_h->async) { |
792 | rx_h->fn(mvm, rxb); | |
f7e6469f | 793 | return; |
0416841d | 794 | } |
36eed56a EG |
795 | |
796 | entry = kzalloc(sizeof(*entry), GFP_ATOMIC); | |
797 | /* we can't do much... */ | |
798 | if (!entry) | |
f7e6469f | 799 | return; |
36eed56a EG |
800 | |
801 | entry->rxb._page = rxb_steal_page(rxb); | |
802 | entry->rxb._offset = rxb->_offset; | |
803 | entry->rxb._rx_page_order = rxb->_rx_page_order; | |
804 | entry->fn = rx_h->fn; | |
805 | spin_lock(&mvm->async_handlers_lock); | |
806 | list_add_tail(&entry->list, &mvm->async_handlers_list); | |
807 | spin_unlock(&mvm->async_handlers_lock); | |
808 | schedule_work(&mvm->async_handlers_wk); | |
809 | break; | |
8ca151b5 | 810 | } |
8ca151b5 JB |
811 | } |
812 | ||
0316d30e JB |
813 | static void iwl_mvm_rx(struct iwl_op_mode *op_mode, |
814 | struct napi_struct *napi, | |
815 | struct iwl_rx_cmd_buffer *rxb) | |
816 | { | |
817 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
818 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
819 | ||
820 | if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD)) | |
821 | iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); | |
822 | else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD) | |
823 | iwl_mvm_rx_rx_phy_cmd(mvm, rxb); | |
824 | else | |
825 | iwl_mvm_rx_common(mvm, rxb, pkt); | |
826 | } | |
827 | ||
828 | static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, | |
829 | struct napi_struct *napi, | |
830 | struct iwl_rx_cmd_buffer *rxb) | |
831 | { | |
832 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
833 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
834 | ||
835 | if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD)) | |
836 | iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); | |
837 | else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD) | |
838 | iwl_mvm_rx_rx_phy_cmd(mvm, rxb); | |
839 | else | |
840 | iwl_mvm_rx_common(mvm, rxb, pkt); | |
841 | } | |
842 | ||
8ca151b5 JB |
843 | static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue) |
844 | { | |
845 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
4ecafae9 LK |
846 | unsigned long mq; |
847 | int q; | |
8ca151b5 | 848 | |
4ecafae9 LK |
849 | spin_lock_bh(&mvm->queue_info_lock); |
850 | mq = mvm->queue_info[queue].hw_queue_to_mac80211; | |
851 | spin_unlock_bh(&mvm->queue_info_lock); | |
8ca151b5 | 852 | |
4ecafae9 | 853 | if (WARN_ON_ONCE(!mq)) |
8ca151b5 | 854 | return; |
8ca151b5 | 855 | |
4ecafae9 LK |
856 | for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) { |
857 | if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) { | |
858 | IWL_DEBUG_TX_QUEUES(mvm, | |
859 | "queue %d (mac80211 %d) already stopped\n", | |
860 | queue, q); | |
861 | continue; | |
862 | } | |
863 | ||
864 | ieee80211_stop_queue(mvm->hw, q); | |
865 | } | |
8ca151b5 JB |
866 | } |
867 | ||
156f92f2 EG |
868 | static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, |
869 | const struct iwl_device_cmd *cmd) | |
870 | { | |
871 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
872 | ||
873 | /* | |
874 | * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA | |
875 | * commands that need to block the Tx queues. | |
876 | */ | |
877 | iwl_trans_block_txq_ptrs(mvm->trans, false); | |
878 | } | |
879 | ||
8ca151b5 JB |
880 | static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue) |
881 | { | |
882 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
4ecafae9 LK |
883 | unsigned long mq; |
884 | int q; | |
8ca151b5 | 885 | |
4ecafae9 LK |
886 | spin_lock_bh(&mvm->queue_info_lock); |
887 | mq = mvm->queue_info[queue].hw_queue_to_mac80211; | |
888 | spin_unlock_bh(&mvm->queue_info_lock); | |
8ca151b5 | 889 | |
4ecafae9 | 890 | if (WARN_ON_ONCE(!mq)) |
8ca151b5 | 891 | return; |
8ca151b5 | 892 | |
4ecafae9 LK |
893 | for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) { |
894 | if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) { | |
895 | IWL_DEBUG_TX_QUEUES(mvm, | |
896 | "queue %d (mac80211 %d) still stopped\n", | |
897 | queue, q); | |
898 | continue; | |
899 | } | |
900 | ||
901 | ieee80211_wake_queue(mvm->hw, q); | |
902 | } | |
8ca151b5 JB |
903 | } |
904 | ||
9ee718aa EL |
905 | void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) |
906 | { | |
907 | if (state) | |
908 | set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); | |
909 | else | |
910 | clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); | |
911 | ||
912 | wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); | |
913 | } | |
914 | ||
14cfca71 | 915 | static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) |
8ca151b5 JB |
916 | { |
917 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
31b8b343 | 918 | bool calibrating = ACCESS_ONCE(mvm->calibrating); |
8ca151b5 JB |
919 | |
920 | if (state) | |
921 | set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); | |
922 | else | |
923 | clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); | |
924 | ||
9ee718aa | 925 | wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); |
14cfca71 | 926 | |
31b8b343 EG |
927 | /* iwl_run_init_mvm_ucode is waiting for results, abort it */ |
928 | if (calibrating) | |
929 | iwl_abort_notification_waits(&mvm->notif_wait); | |
930 | ||
931 | /* | |
932 | * Stop the device if we run OPERATIONAL firmware or if we are in the | |
933 | * middle of the calibrations. | |
934 | */ | |
935 | return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating); | |
8ca151b5 JB |
936 | } |
937 | ||
938 | static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) | |
939 | { | |
940 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
941 | struct ieee80211_tx_info *info; | |
942 | ||
943 | info = IEEE80211_SKB_CB(skb); | |
944 | iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); | |
945 | ieee80211_free_txskb(mvm->hw, skb); | |
946 | } | |
947 | ||
ac1ed416 JB |
948 | struct iwl_mvm_reprobe { |
949 | struct device *dev; | |
950 | struct work_struct work; | |
951 | }; | |
952 | ||
953 | static void iwl_mvm_reprobe_wk(struct work_struct *wk) | |
954 | { | |
955 | struct iwl_mvm_reprobe *reprobe; | |
956 | ||
957 | reprobe = container_of(wk, struct iwl_mvm_reprobe, work); | |
958 | if (device_reprobe(reprobe->dev)) | |
959 | dev_err(reprobe->dev, "reprobe failed!\n"); | |
960 | kfree(reprobe); | |
961 | module_put(THIS_MODULE); | |
962 | } | |
963 | ||
4bfa47f3 EG |
964 | static void iwl_mvm_fw_error_dump_wk(struct work_struct *work) |
965 | { | |
966 | struct iwl_mvm *mvm = | |
d2709ad7 | 967 | container_of(work, struct iwl_mvm, fw_dump_wk.work); |
4bfa47f3 | 968 | |
fb2380a2 LK |
969 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT)) |
970 | return; | |
971 | ||
4bfa47f3 | 972 | mutex_lock(&mvm->mutex); |
145d90b6 EG |
973 | |
974 | /* stop recording */ | |
975 | if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) { | |
976 | iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100); | |
977 | } else { | |
978 | iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0); | |
979 | /* wait before we collect the data till the DBGC stop */ | |
980 | udelay(100); | |
981 | } | |
982 | ||
4bfa47f3 | 983 | iwl_mvm_fw_error_dump(mvm); |
e66e0b70 EG |
984 | |
985 | /* start recording again if the firmware is not crashed */ | |
986 | WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) && | |
9beda940 EG |
987 | mvm->fw->dbg_dest_tlv && |
988 | iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf)); | |
e66e0b70 | 989 | |
4bfa47f3 | 990 | mutex_unlock(&mvm->mutex); |
fb2380a2 LK |
991 | |
992 | iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT); | |
4bfa47f3 EG |
993 | } |
994 | ||
b08c1d97 | 995 | void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) |
8ca151b5 | 996 | { |
8ca151b5 JB |
997 | iwl_abort_notification_waits(&mvm->notif_wait); |
998 | ||
992f81fc DS |
999 | /* |
1000 | * This is a bit racy, but worst case we tell mac80211 about | |
1001 | * a stopped/aborted scan when that was already done which | |
1002 | * is not a problem. It is necessary to abort any os scan | |
1003 | * here because mac80211 requires having the scan cleared | |
1004 | * before restarting. | |
1005 | * We'll reset the scan_status to NONE in restart cleanup in | |
1006 | * the next start() call from mac80211. If restart isn't called | |
1007 | * (no fw restart) scan status will stay busy. | |
1008 | */ | |
4ffb3650 | 1009 | iwl_mvm_report_scan_aborted(mvm); |
992f81fc | 1010 | |
8ca151b5 JB |
1011 | /* |
1012 | * If we're restarting already, don't cycle restarts. | |
1013 | * If INIT fw asserted, it will likely fail again. | |
1014 | * If WoWLAN fw asserted, don't restart either, mac80211 | |
1015 | * can't recover this since we're already half suspended. | |
1016 | */ | |
60f1071c | 1017 | if (!mvm->restart_fw && fw_error) { |
36fb9017 OG |
1018 | iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert, |
1019 | NULL); | |
60f1071c LC |
1020 | } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, |
1021 | &mvm->status)) { | |
ac1ed416 JB |
1022 | struct iwl_mvm_reprobe *reprobe; |
1023 | ||
1024 | IWL_ERR(mvm, | |
1025 | "Firmware error during reconfiguration - reprobe!\n"); | |
1026 | ||
1027 | /* | |
1028 | * get a module reference to avoid doing this while unloading | |
1029 | * anyway and to avoid scheduling a work with code that's | |
1030 | * being removed. | |
1031 | */ | |
1032 | if (!try_module_get(THIS_MODULE)) { | |
1033 | IWL_ERR(mvm, "Module is being unloaded - abort\n"); | |
1034 | return; | |
1035 | } | |
1036 | ||
1037 | reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); | |
1038 | if (!reprobe) { | |
1039 | module_put(THIS_MODULE); | |
1040 | return; | |
1041 | } | |
1042 | reprobe->dev = mvm->trans->dev; | |
1043 | INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); | |
1044 | schedule_work(&reprobe->work); | |
60f1071c | 1045 | } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) { |
7498cf4c EP |
1046 | /* don't let the transport/FW power down */ |
1047 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1048 | ||
b08c1d97 | 1049 | if (fw_error && mvm->restart_fw > 0) |
291aa7c4 | 1050 | mvm->restart_fw--; |
8ca151b5 JB |
1051 | ieee80211_restart_hw(mvm->hw); |
1052 | } | |
1053 | } | |
1054 | ||
715c998f EG |
1055 | static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) |
1056 | { | |
1057 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
1058 | ||
1059 | iwl_mvm_dump_nic_error_log(mvm); | |
1bd3cbc1 | 1060 | |
b08c1d97 | 1061 | iwl_mvm_nic_restart(mvm, true); |
715c998f EG |
1062 | } |
1063 | ||
8ca151b5 JB |
1064 | static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) |
1065 | { | |
715c998f EG |
1066 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); |
1067 | ||
8ca151b5 | 1068 | WARN_ON(1); |
b08c1d97 | 1069 | iwl_mvm_nic_restart(mvm, true); |
8ca151b5 JB |
1070 | } |
1071 | ||
37577fe2 EP |
1072 | struct iwl_d0i3_iter_data { |
1073 | struct iwl_mvm *mvm; | |
1074 | u8 ap_sta_id; | |
1075 | u8 vif_count; | |
b2492501 AN |
1076 | u8 offloading_tid; |
1077 | bool disable_offloading; | |
37577fe2 EP |
1078 | }; |
1079 | ||
b2492501 AN |
1080 | static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm, |
1081 | struct ieee80211_vif *vif, | |
1082 | struct iwl_d0i3_iter_data *iter_data) | |
1083 | { | |
1084 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1085 | struct ieee80211_sta *ap_sta; | |
1086 | struct iwl_mvm_sta *mvmsta; | |
1087 | u32 available_tids = 0; | |
1088 | u8 tid; | |
1089 | ||
1090 | if (WARN_ON(vif->type != NL80211_IFTYPE_STATION || | |
1091 | mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) | |
1092 | return false; | |
1093 | ||
1094 | ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]); | |
1095 | if (IS_ERR_OR_NULL(ap_sta)) | |
1096 | return false; | |
1097 | ||
1098 | mvmsta = iwl_mvm_sta_from_mac80211(ap_sta); | |
1099 | spin_lock_bh(&mvmsta->lock); | |
1100 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
1101 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
1102 | ||
1103 | /* | |
1104 | * in case of pending tx packets, don't use this tid | |
1105 | * for offloading in order to prevent reuse of the same | |
1106 | * qos seq counters. | |
1107 | */ | |
1108 | if (iwl_mvm_tid_queued(tid_data)) | |
1109 | continue; | |
1110 | ||
1111 | if (tid_data->state != IWL_AGG_OFF) | |
1112 | continue; | |
1113 | ||
1114 | available_tids |= BIT(tid); | |
1115 | } | |
1116 | spin_unlock_bh(&mvmsta->lock); | |
1117 | ||
1118 | /* | |
1119 | * disallow protocol offloading if we have no available tid | |
1120 | * (with no pending frames and no active aggregation, | |
1121 | * as we don't handle "holes" properly - the scheduler needs the | |
1122 | * frame's seq number and TFD index to match) | |
1123 | */ | |
1124 | if (!available_tids) | |
1125 | return true; | |
1126 | ||
1127 | /* for simplicity, just use the first available tid */ | |
1128 | iter_data->offloading_tid = ffs(available_tids) - 1; | |
1129 | return false; | |
1130 | } | |
1131 | ||
d6230972 EP |
1132 | static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac, |
1133 | struct ieee80211_vif *vif) | |
1134 | { | |
37577fe2 EP |
1135 | struct iwl_d0i3_iter_data *data = _data; |
1136 | struct iwl_mvm *mvm = data->mvm; | |
1137 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
d6230972 EP |
1138 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; |
1139 | ||
1140 | IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr); | |
1141 | if (vif->type != NL80211_IFTYPE_STATION || | |
1142 | !vif->bss_conf.assoc) | |
1143 | return; | |
1144 | ||
b2492501 AN |
1145 | /* |
1146 | * in case of pending tx packets or active aggregations, | |
1147 | * avoid offloading features in order to prevent reuse of | |
1148 | * the same qos seq counters. | |
1149 | */ | |
1150 | if (iwl_mvm_disallow_offloading(mvm, vif, data)) | |
1151 | data->disable_offloading = true; | |
1152 | ||
d6230972 | 1153 | iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags); |
8bd22e7b | 1154 | iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags); |
d6230972 EP |
1155 | |
1156 | /* | |
1157 | * on init/association, mvm already configures POWER_TABLE_CMD | |
1158 | * and REPLY_MCAST_FILTER_CMD, so currently don't | |
1159 | * reconfigure them (we might want to use different | |
1160 | * params later on, though). | |
1161 | */ | |
37577fe2 EP |
1162 | data->ap_sta_id = mvmvif->ap_sta_id; |
1163 | data->vif_count++; | |
d6230972 EP |
1164 | } |
1165 | ||
1a95c8df | 1166 | static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm, |
c8b06a99 | 1167 | struct iwl_wowlan_config_cmd *cmd, |
1a95c8df EP |
1168 | struct iwl_d0i3_iter_data *iter_data) |
1169 | { | |
1170 | struct ieee80211_sta *ap_sta; | |
1171 | struct iwl_mvm_sta *mvm_ap_sta; | |
1172 | ||
1173 | if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT) | |
1174 | return; | |
1175 | ||
1176 | rcu_read_lock(); | |
1177 | ||
1178 | ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]); | |
1179 | if (IS_ERR_OR_NULL(ap_sta)) | |
1180 | goto out; | |
1181 | ||
1182 | mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); | |
c8b06a99 | 1183 | cmd->is_11n_connection = ap_sta->ht_cap.ht_supported; |
b2492501 | 1184 | cmd->offloading_tid = iter_data->offloading_tid; |
1a95c8df EP |
1185 | |
1186 | /* | |
1187 | * The d0i3 uCode takes care of the nonqos counters, | |
1188 | * so configure only the qos seq ones. | |
1189 | */ | |
c8b06a99 | 1190 | iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd); |
1a95c8df EP |
1191 | out: |
1192 | rcu_read_unlock(); | |
1193 | } | |
6735943f EP |
1194 | |
1195 | int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode) | |
b3370d47 EP |
1196 | { |
1197 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
98ee7783 | 1198 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; |
b77f06d9 | 1199 | int ret; |
37577fe2 EP |
1200 | struct iwl_d0i3_iter_data d0i3_iter_data = { |
1201 | .mvm = mvm, | |
1202 | }; | |
c8b06a99 EG |
1203 | struct iwl_wowlan_config_cmd wowlan_config_cmd = { |
1204 | .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME | | |
1205 | IWL_WOWLAN_WAKEUP_BEACON_MISS | | |
1206 | IWL_WOWLAN_WAKEUP_LINK_CHANGE | | |
1207 | IWL_WOWLAN_WAKEUP_BCN_FILTERING), | |
b77f06d9 | 1208 | }; |
98ee7783 AN |
1209 | struct iwl_d3_manager_config d3_cfg_cmd = { |
1210 | .min_sleep_time = cpu_to_le32(1000), | |
d9f1fc20 | 1211 | .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR), |
98ee7783 | 1212 | }; |
b3370d47 EP |
1213 | |
1214 | IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n"); | |
98ee7783 | 1215 | |
b2492501 | 1216 | set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); |
b2492501 | 1217 | |
f4cf8680 EP |
1218 | /* |
1219 | * iwl_mvm_ref_sync takes a reference before checking the flag. | |
1220 | * so by checking there is no held reference we prevent a state | |
1221 | * in which iwl_mvm_ref_sync continues successfully while we | |
1222 | * configure the firmware to enter d0i3 | |
1223 | */ | |
1224 | if (iwl_mvm_ref_taken(mvm)) { | |
1225 | IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n"); | |
1226 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
caf1578a | 1227 | wake_up(&mvm->d0i3_exit_waitq); |
f4cf8680 EP |
1228 | return 1; |
1229 | } | |
1230 | ||
d6230972 EP |
1231 | ieee80211_iterate_active_interfaces_atomic(mvm->hw, |
1232 | IEEE80211_IFACE_ITER_NORMAL, | |
1233 | iwl_mvm_enter_d0i3_iterator, | |
37577fe2 EP |
1234 | &d0i3_iter_data); |
1235 | if (d0i3_iter_data.vif_count == 1) { | |
1236 | mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id; | |
b2492501 | 1237 | mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading; |
37577fe2 EP |
1238 | } else { |
1239 | WARN_ON_ONCE(d0i3_iter_data.vif_count > 1); | |
1240 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
b2492501 | 1241 | mvm->d0i3_offloading = false; |
37577fe2 | 1242 | } |
d6230972 | 1243 | |
ecc7c518 EG |
1244 | /* make sure we have no running tx while configuring the seqno */ |
1245 | synchronize_net(); | |
1246 | ||
eb3908d3 LC |
1247 | /* Flush the hw queues, in case something got queued during entry */ |
1248 | ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags); | |
1249 | if (ret) | |
1250 | return ret; | |
1251 | ||
183edd84 EP |
1252 | /* configure wowlan configuration only if needed */ |
1253 | if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) { | |
1254 | iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, | |
1255 | &d0i3_iter_data); | |
1256 | ||
1257 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags, | |
1258 | sizeof(wowlan_config_cmd), | |
1259 | &wowlan_config_cmd); | |
1260 | if (ret) | |
1261 | return ret; | |
1262 | } | |
b77f06d9 | 1263 | |
98ee7783 AN |
1264 | return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, |
1265 | flags | CMD_MAKE_TRANS_IDLE, | |
1266 | sizeof(d3_cfg_cmd), &d3_cfg_cmd); | |
b3370d47 EP |
1267 | } |
1268 | ||
d6230972 EP |
1269 | static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac, |
1270 | struct ieee80211_vif *vif) | |
1271 | { | |
1272 | struct iwl_mvm *mvm = _data; | |
1273 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO; | |
1274 | ||
1275 | IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr); | |
1276 | if (vif->type != NL80211_IFTYPE_STATION || | |
1277 | !vif->bss_conf.assoc) | |
1278 | return; | |
1279 | ||
1280 | iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags); | |
1281 | } | |
1282 | ||
b3df2247 DS |
1283 | struct iwl_mvm_wakeup_reason_iter_data { |
1284 | struct iwl_mvm *mvm; | |
1285 | u32 wakeup_reasons; | |
1286 | }; | |
1287 | ||
1288 | static void iwl_mvm_d0i3_wakeup_reason_iter(void *_data, u8 *mac, | |
1289 | struct ieee80211_vif *vif) | |
37577fe2 | 1290 | { |
b3df2247 | 1291 | struct iwl_mvm_wakeup_reason_iter_data *data = _data; |
37577fe2 EP |
1292 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
1293 | ||
1294 | if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc && | |
b3df2247 DS |
1295 | data->mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) { |
1296 | if (data->wakeup_reasons & | |
1297 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH) | |
1298 | iwl_mvm_connection_loss(data->mvm, vif, "D0i3"); | |
1299 | else | |
1300 | ieee80211_beacon_loss(vif); | |
1301 | } | |
37577fe2 EP |
1302 | } |
1303 | ||
b2492501 AN |
1304 | void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq) |
1305 | { | |
1306 | struct ieee80211_sta *sta = NULL; | |
1307 | struct iwl_mvm_sta *mvm_ap_sta; | |
1308 | int i; | |
1309 | bool wake_queues = false; | |
1310 | ||
1311 | lockdep_assert_held(&mvm->mutex); | |
1312 | ||
1313 | spin_lock_bh(&mvm->d0i3_tx_lock); | |
1314 | ||
1315 | if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT) | |
1316 | goto out; | |
1317 | ||
1318 | IWL_DEBUG_RPM(mvm, "re-enqueue packets\n"); | |
1319 | ||
1320 | /* get the sta in order to update seq numbers and re-enqueue skbs */ | |
1321 | sta = rcu_dereference_protected( | |
1322 | mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id], | |
1323 | lockdep_is_held(&mvm->mutex)); | |
1324 | ||
1325 | if (IS_ERR_OR_NULL(sta)) { | |
1326 | sta = NULL; | |
1327 | goto out; | |
1328 | } | |
1329 | ||
1330 | if (mvm->d0i3_offloading && qos_seq) { | |
1331 | /* update qos seq numbers if offloading was enabled */ | |
9d8ce6af | 1332 | mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta); |
b2492501 AN |
1333 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
1334 | u16 seq = le16_to_cpu(qos_seq[i]); | |
1335 | /* firmware stores last-used one, we store next one */ | |
1336 | seq += 0x10; | |
1337 | mvm_ap_sta->tid_data[i].seq_number = seq; | |
1338 | } | |
1339 | } | |
1340 | out: | |
1341 | /* re-enqueue (or drop) all packets */ | |
1342 | while (!skb_queue_empty(&mvm->d0i3_tx)) { | |
1343 | struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx); | |
1344 | ||
1345 | if (!sta || iwl_mvm_tx_skb(mvm, skb, sta)) | |
1346 | ieee80211_free_txskb(mvm->hw, skb); | |
1347 | ||
1348 | /* if the skb_queue is not empty, we need to wake queues */ | |
1349 | wake_queues = true; | |
1350 | } | |
1351 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
1352 | wake_up(&mvm->d0i3_exit_waitq); | |
1353 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
1354 | if (wake_queues) | |
1355 | ieee80211_wake_queues(mvm->hw); | |
1356 | ||
1357 | spin_unlock_bh(&mvm->d0i3_tx_lock); | |
1358 | } | |
1359 | ||
37577fe2 EP |
1360 | static void iwl_mvm_d0i3_exit_work(struct work_struct *wk) |
1361 | { | |
1362 | struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work); | |
1363 | struct iwl_host_cmd get_status_cmd = { | |
1364 | .id = WOWLAN_GET_STATUSES, | |
a1022927 | 1365 | .flags = CMD_HIGH_PRIO | CMD_WANT_SKB, |
37577fe2 | 1366 | }; |
3afec639 | 1367 | struct iwl_wowlan_status *status; |
37577fe2 | 1368 | int ret; |
7c014e35 | 1369 | u32 handled_reasons, wakeup_reasons = 0; |
b2492501 | 1370 | __le16 *qos_seq = NULL; |
37577fe2 EP |
1371 | |
1372 | mutex_lock(&mvm->mutex); | |
1373 | ret = iwl_mvm_send_cmd(mvm, &get_status_cmd); | |
1374 | if (ret) | |
1375 | goto out; | |
1376 | ||
1377 | if (!get_status_cmd.resp_pkt) | |
1378 | goto out; | |
1379 | ||
1380 | status = (void *)get_status_cmd.resp_pkt->data; | |
1381 | wakeup_reasons = le32_to_cpu(status->wakeup_reasons); | |
b2492501 | 1382 | qos_seq = status->qos_seq_ctr; |
37577fe2 EP |
1383 | |
1384 | IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons); | |
1385 | ||
b3df2247 DS |
1386 | handled_reasons = IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | |
1387 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; | |
1388 | if (wakeup_reasons & handled_reasons) { | |
1389 | struct iwl_mvm_wakeup_reason_iter_data data = { | |
1390 | .mvm = mvm, | |
1391 | .wakeup_reasons = wakeup_reasons, | |
1392 | }; | |
1393 | ||
37577fe2 EP |
1394 | ieee80211_iterate_active_interfaces( |
1395 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
b3df2247 DS |
1396 | iwl_mvm_d0i3_wakeup_reason_iter, &data); |
1397 | } | |
37577fe2 | 1398 | out: |
b2492501 | 1399 | iwl_mvm_d0i3_enable_tx(mvm, qos_seq); |
47c8b154 | 1400 | |
7c014e35 EP |
1401 | IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n", |
1402 | wakeup_reasons); | |
1403 | ||
e5629be7 EP |
1404 | /* qos_seq might point inside resp_pkt, so free it only now */ |
1405 | if (get_status_cmd.resp_pkt) | |
1406 | iwl_free_resp(&get_status_cmd); | |
1407 | ||
47c8b154 JD |
1408 | /* the FW might have updated the regdomain */ |
1409 | iwl_mvm_update_changed_regdom(mvm); | |
1410 | ||
d15a747f | 1411 | iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK); |
37577fe2 EP |
1412 | mutex_unlock(&mvm->mutex); |
1413 | } | |
1414 | ||
d15a747f | 1415 | int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm) |
b3370d47 | 1416 | { |
98ee7783 AN |
1417 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE | |
1418 | CMD_WAKE_UP_TRANS; | |
d6230972 | 1419 | int ret; |
b3370d47 EP |
1420 | |
1421 | IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n"); | |
98ee7783 | 1422 | |
d15a747f EP |
1423 | mutex_lock(&mvm->d0i3_suspend_mutex); |
1424 | if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) { | |
1425 | IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n"); | |
1426 | __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags); | |
1427 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
1428 | return 0; | |
1429 | } | |
1430 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
1431 | ||
d6230972 EP |
1432 | ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL); |
1433 | if (ret) | |
37577fe2 | 1434 | goto out; |
d6230972 EP |
1435 | |
1436 | ieee80211_iterate_active_interfaces_atomic(mvm->hw, | |
1437 | IEEE80211_IFACE_ITER_NORMAL, | |
1438 | iwl_mvm_exit_d0i3_iterator, | |
1439 | mvm); | |
37577fe2 EP |
1440 | out: |
1441 | schedule_work(&mvm->d0i3_exit_work); | |
1442 | return ret; | |
b3370d47 EP |
1443 | } |
1444 | ||
6735943f | 1445 | int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode) |
d15a747f EP |
1446 | { |
1447 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
1448 | ||
1449 | iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK); | |
1450 | return _iwl_mvm_exit_d0i3(mvm); | |
1451 | } | |
1452 | ||
0316d30e JB |
1453 | #define IWL_MVM_COMMON_OPS \ |
1454 | /* these could be differentiated */ \ | |
156f92f2 | 1455 | .async_cb = iwl_mvm_async_cb, \ |
0316d30e JB |
1456 | .queue_full = iwl_mvm_stop_sw_queue, \ |
1457 | .queue_not_full = iwl_mvm_wake_sw_queue, \ | |
1458 | .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ | |
1459 | .free_skb = iwl_mvm_free_skb, \ | |
1460 | .nic_error = iwl_mvm_nic_error, \ | |
1461 | .cmd_queue_full = iwl_mvm_cmd_queue_full, \ | |
1462 | .nic_config = iwl_mvm_nic_config, \ | |
1463 | .enter_d0i3 = iwl_mvm_enter_d0i3, \ | |
1464 | .exit_d0i3 = iwl_mvm_exit_d0i3, \ | |
1465 | /* as we only register one, these MUST be common! */ \ | |
1466 | .start = iwl_op_mode_mvm_start, \ | |
1467 | .stop = iwl_op_mode_mvm_stop | |
1468 | ||
8ca151b5 | 1469 | static const struct iwl_op_mode_ops iwl_mvm_ops = { |
0316d30e JB |
1470 | IWL_MVM_COMMON_OPS, |
1471 | .rx = iwl_mvm_rx, | |
1472 | }; | |
1473 | ||
1474 | static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, | |
1475 | struct napi_struct *napi, | |
1476 | struct iwl_rx_cmd_buffer *rxb, | |
1477 | unsigned int queue) | |
1478 | { | |
1479 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
1480 | ||
1481 | iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); | |
1482 | } | |
1483 | ||
1484 | static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { | |
1485 | IWL_MVM_COMMON_OPS, | |
1486 | .rx = iwl_mvm_rx_mq, | |
1487 | .rx_rss = iwl_mvm_rx_mq_rss, | |
8ca151b5 | 1488 | }; |