blob: 05fe6dd1a2c81652330aec05f743f50bae59bca5 [file] [log] [blame]
Johannes Berg8ca151b2013-01-24 14:25:36 +01001/******************************************************************************
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 *
Emmanuel Grumbach51368bf2013-12-30 13:15:54 +02008 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
Eran Harary4fb06282015-04-19 10:05:18 +03009 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
Johannes Berg8ca151b2013-01-24 14:25:36 +010010 *
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
Emmanuel Grumbach410dc5a2013-02-18 09:22:28 +020026 * in the file called COPYING.
Johannes Berg8ca151b2013-01-24 14:25:36 +010027 *
28 * Contact Information:
Emmanuel Grumbachcb2f8272015-11-17 15:39:56 +020029 * Intel Linux Wireless <linuxwifi@intel.com>
Johannes Berg8ca151b2013-01-24 14:25:36 +010030 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
Emmanuel Grumbach51368bf2013-12-30 13:15:54 +020034 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
Eran Harary4fb06282015-04-19 10:05:18 +030035 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
Sara Sharon0db056d2015-12-29 11:07:15 +020036 * Copyright(c) 2016 Intel Deutschland GmbH
Johannes Berg8ca151b2013-01-24 14:25:36 +010037 * 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>
Emmanuel Grumbach1bd3cbc2014-03-18 21:15:06 +020067#include <linux/vmalloc.h>
Johannes Berg8ca151b2013-01-24 14:25:36 +010068#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"
Golan Ben-Ami2f89a5d2015-10-27 19:17:14 +020086#include "fw-dbg.h"
Sharon Dvir39bdb172015-10-15 18:18:09 +030087#include "fw-api.h"
88#include "fw-api-scan.h"
Johannes Berg8ca151b2013-01-24 14:25:36 +010089
Johannes Berg8ca151b2013-01-24 14:25:36 +010090#define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
Johannes Berg8ca151b2013-01-24 14:25:36 +010091MODULE_DESCRIPTION(DRV_DESCRIPTION);
Johannes Berg8ca151b2013-01-24 14:25:36 +010092MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
93MODULE_LICENSE("GPL");
94
95static const struct iwl_op_mode_ops iwl_mvm_ops;
Johannes Berg0316d302015-05-22 13:41:07 +020096static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
Johannes Berg8ca151b2013-01-24 14:25:36 +010097
98struct iwl_mvm_mod_params iwlmvm_mod_params = {
99 .power_scheme = IWL_POWER_SCHEME_BPS,
Emmanuel Grumbachce71c2f2015-01-11 17:19:39 +0200100 .tfd_q_hang_detect = true
Johannes Berg8ca151b2013-01-24 14:25:36 +0100101 /* rest of fields are 0 by default */
102};
103
104module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
105MODULE_PARM_DESC(init_dbg,
106 "set to true to debug an ASSERT in INIT fw (default: false");
107module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
108MODULE_PARM_DESC(power_scheme,
109 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
Emmanuel Grumbachce71c2f2015-01-11 17:19:39 +0200110module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect,
111 bool, S_IRUGO);
112MODULE_PARM_DESC(tfd_q_hang_detect,
113 "TFD queues hang detection (default: true");
Johannes Berg8ca151b2013-01-24 14:25:36 +0100114
115/*
116 * module init and exit functions
117 */
118static 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}
137module_init(iwl_mvm_init);
138
139static void __exit iwl_mvm_exit(void)
140{
141 iwl_opmode_deregister("iwlmvm");
142 iwl_mvm_rate_control_unregister();
143}
144module_exit(iwl_mvm_exit);
145
146static 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;
Moshe Harela0544272014-12-08 21:13:14 +0200151 u32 phy_config = iwl_mvm_get_phy_config(mvm);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100152
Moshe Harela0544272014-12-08 21:13:14 +0200153 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;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100159
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
Liad Kaufman9b1fcc12014-05-08 16:30:24 +0300174 /*
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;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100183
Lilach Edelsteine139dc42013-01-13 13:31:10 +0200184 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);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100193
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 */
Avri Altman95411d02015-05-11 11:04:34 +0300202 if (!mvm->trans->cfg->apmg_not_supported)
Eran Harary3073d8c2013-12-29 14:09:59 +0200203 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);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100206}
207
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200208/**
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 */
218enum 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 */
Johannes Berg8ca151b2013-01-24 14:25:36 +0100230struct iwl_rx_handlers {
Avraham Stern1230b162015-07-09 17:17:03 +0300231 u16 cmd_id;
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200232 enum iwl_rx_handler_context context;
Johannes Berg04168412015-06-23 21:22:09 +0200233 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100234};
235
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200236#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 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100240
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 *
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200246 * The handler can be one from three contexts, see &iwl_rx_handler_context
Johannes Berg8ca151b2013-01-24 14:25:36 +0100247 */
248static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200249 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),
Johannes Berg8ca151b2013-01-24 14:25:36 +0100251
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200252 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),
Emmanuel Grumbachb9fae2d2014-02-17 11:24:10 +0200258 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200259 iwl_mvm_rx_ant_coupling_notif, RX_HANDLER_ASYNC_LOCKED),
Emmanuel Grumbachf421f9c2013-01-17 14:20:29 +0200260
Sara Sharon3af512d62015-07-22 11:38:40 +0300261 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200262 iwl_mvm_window_status_notif, RX_HANDLER_SYNC),
Sara Sharon3af512d62015-07-22 11:38:40 +0300263
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200264 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),
Emmanuel Grumbach497b49d2013-06-02 20:54:48 +0300268
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200269 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC),
Johannes Berg3e56ead2013-02-15 22:23:18 +0100270
Alexander Bondare5d74642014-12-09 19:15:49 +0200271 RX_HANDLER(SCAN_ITERATION_COMPLETE,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200272 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC),
David Spinadel35a000b2013-08-28 09:29:43 +0300273 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200274 iwl_mvm_rx_lmac_scan_complete_notif,
275 RX_HANDLER_ASYNC_LOCKED),
Luciano Coelho6e56f012015-05-06 16:03:39 +0300276 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200277 RX_HANDLER_SYNC),
David Spinadeld2496222014-05-20 12:46:37 +0300278 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200279 RX_HANDLER_ASYNC_LOCKED),
Avraham Sternee9219b2015-03-23 15:09:27 +0200280 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200281 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC),
Emmanuel Grumbach497b49d2013-06-02 20:54:48 +0300282
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200283 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif,
284 RX_HANDLER_SYNC),
Johannes Berg8ca151b2013-01-24 14:25:36 +0100285
Hila Gonend64048e2013-03-13 18:00:03 +0200286 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200287 RX_HANDLER_SYNC),
Hila Gonend64048e2013-03-13 18:00:03 +0200288
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200289 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC),
Alexander Bondar175a70b2013-04-14 20:59:37 +0300290 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200291 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),
Aviya Erenfeld09eef332015-09-01 19:34:38 +0300294 RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
Chaya Rachel Ivgiec77a332016-03-13 11:39:53 +0200295 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
Chaya Rachel Ivgi0a3b7112015-12-16 16:34:55 +0200296 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200297 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC),
Luciano Coelhoea9af242014-11-06 10:34:49 +0200298
Arik Nemtsov1d3c3f62014-10-23 18:03:10 +0300299 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200300 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),
Sara Sharon0db056d2015-12-29 11:07:15 +0200305 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200306 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC),
Sara Sharonf92659a2016-02-03 15:04:49 +0200307 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200308 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC),
Johannes Berg8ca151b2013-01-24 14:25:36 +0100309};
310#undef RX_HANDLER
Avraham Stern1230b162015-07-09 17:17:03 +0300311#undef RX_HANDLER_GRP
Johannes Berg8ca151b2013-01-24 14:25:36 +0100312
Sharon Dvir39bdb172015-10-15 18:18:09 +0300313/* Please keep this array *SORTED* by hex value.
314 * Access is done through binary search
315 */
316static 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),
Sara Sharon3af512d62015-07-22 11:38:40 +0300330 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300331 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),
Sara Sharon176aa602016-08-31 19:03:01 +0300362 HCMD_NAME(PHY_DB_CMD),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300363 HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
364 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
365 HCMD_NAME(SCAN_OFFLOAD_CONFIG_CMD),
366 HCMD_NAME(POWER_TABLE_CMD),
367 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
368 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
369 HCMD_NAME(DC2DC_CONFIG_CMD),
370 HCMD_NAME(NVM_ACCESS_CMD),
371 HCMD_NAME(SET_CALIB_DEFAULT_CMD),
372 HCMD_NAME(BEACON_NOTIFICATION),
373 HCMD_NAME(BEACON_TEMPLATE_CMD),
374 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
375 HCMD_NAME(BT_CONFIG),
376 HCMD_NAME(STATISTICS_CMD),
377 HCMD_NAME(STATISTICS_NOTIFICATION),
378 HCMD_NAME(EOSP_NOTIFICATION),
379 HCMD_NAME(REDUCE_TX_POWER_CMD),
380 HCMD_NAME(CARD_STATE_CMD),
381 HCMD_NAME(CARD_STATE_NOTIFICATION),
382 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
383 HCMD_NAME(TDLS_CONFIG_CMD),
384 HCMD_NAME(MAC_PM_POWER_TABLE),
385 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
386 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
Sara Sharon43413a92015-12-31 11:49:18 +0200387 HCMD_NAME(RSS_CONFIG_CMD),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300388 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
389 HCMD_NAME(REPLY_RX_PHY_CMD),
390 HCMD_NAME(REPLY_RX_MPDU_CMD),
391 HCMD_NAME(BA_NOTIF),
392 HCMD_NAME(MCC_UPDATE_CMD),
393 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
394 HCMD_NAME(MARKER_CMD),
395 HCMD_NAME(BT_COEX_PRIO_TABLE),
396 HCMD_NAME(BT_COEX_PROT_ENV),
397 HCMD_NAME(BT_PROFILE_NOTIFICATION),
398 HCMD_NAME(BCAST_FILTER_CMD),
399 HCMD_NAME(MCAST_FILTER_CMD),
400 HCMD_NAME(REPLY_SF_CFG_CMD),
401 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
402 HCMD_NAME(D3_CONFIG_CMD),
403 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
404 HCMD_NAME(OFFLOADS_QUERY_CMD),
405 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD),
406 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
407 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER),
408 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
409 HCMD_NAME(WOWLAN_PATTERNS),
410 HCMD_NAME(WOWLAN_CONFIGURATION),
411 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
412 HCMD_NAME(WOWLAN_TKIP_PARAM),
413 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
414 HCMD_NAME(WOWLAN_GET_STATUSES),
415 HCMD_NAME(WOWLAN_TX_POWER_PER_DB),
416 HCMD_NAME(SCAN_ITERATION_COMPLETE),
417 HCMD_NAME(D0I3_END_CMD),
418 HCMD_NAME(LTR_CONFIG),
419 HCMD_NAME(REPLY_DEBUG_CMD),
Johannes Berg8ca151b2013-01-24 14:25:36 +0100420};
Sharon Dvir39bdb172015-10-15 18:18:09 +0300421
422/* Please keep this array *SORTED* by hex value.
423 * Access is done through binary search
424 */
Golan Ben-Ami5b086412016-02-09 12:57:16 +0200425static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
426 HCMD_NAME(SHARED_MEM_CFG_CMD),
427};
428
429/* Please keep this array *SORTED* by hex value.
430 * Access is done through binary search
431 */
Aviya Erenfeld03098262016-02-18 14:09:33 +0200432static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
433 HCMD_NAME(LINK_QUALITY_MEASUREMENT_CMD),
434 HCMD_NAME(LINK_QUALITY_MEASUREMENT_COMPLETE_NOTIF),
Andrei Otcheretianskid3a108a2016-02-28 17:12:21 +0200435 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF),
Aviya Erenfeld03098262016-02-18 14:09:33 +0200436};
437
438/* Please keep this array *SORTED* by hex value.
439 * Access is done through binary search
440 */
Sharon Dvir39bdb172015-10-15 18:18:09 +0300441static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
442 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
Chaya Rachel Ivgi5c89e7b2016-01-05 10:34:47 +0200443 HCMD_NAME(CTDP_CONFIG_CMD),
Chaya Rachel Ivgic221daf2015-12-29 09:54:49 +0200444 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
Chaya Rachel Ivgi0a3b7112015-12-16 16:34:55 +0200445 HCMD_NAME(CT_KILL_NOTIFICATION),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300446 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
447};
448
Sara Sharon0db056d2015-12-29 11:07:15 +0200449/* Please keep this array *SORTED* by hex value.
450 * Access is done through binary search
451 */
Sara Sharone0d8fde2015-12-28 22:37:08 +0200452static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
453 HCMD_NAME(UPDATE_MU_GROUPS_CMD),
Sara Sharon94bb4482015-12-16 18:48:28 +0200454 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
Sara Sharonf92659a2016-02-03 15:04:49 +0200455 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
Sara Sharon94bb4482015-12-16 18:48:28 +0200456 HCMD_NAME(RX_QUEUES_NOTIFICATION),
Sara Sharone0d8fde2015-12-28 22:37:08 +0200457};
458
459/* Please keep this array *SORTED* by hex value.
460 * Access is done through binary search
461 */
Sara Sharon0db056d2015-12-29 11:07:15 +0200462static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
463 HCMD_NAME(STORED_BEACON_NTF),
464};
465
Sharon Dvir39bdb172015-10-15 18:18:09 +0300466static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
467 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
468 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
Golan Ben-Ami5b086412016-02-09 12:57:16 +0200469 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
Aviya Erenfeld03098262016-02-18 14:09:33 +0200470 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300471 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
Sara Sharone0d8fde2015-12-28 22:37:08 +0200472 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
Sara Sharon0db056d2015-12-29 11:07:15 +0200473 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300474};
475
Johannes Berg8ca151b2013-01-24 14:25:36 +0100476/* this forward declaration can avoid to export the function */
477static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
Eliad Peller37577fe2013-12-05 17:19:39 +0200478static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100479
Ido Yariv0c0e2c72014-01-16 21:12:02 -0500480static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
481{
482 const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
483
484 if (!pwr_tx_backoff)
485 return 0;
486
487 while (pwr_tx_backoff->pwr) {
488 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
489 return pwr_tx_backoff->backoff;
490
491 pwr_tx_backoff++;
492 }
493
494 return 0;
495}
496
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +0300497static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
498
Andrei Otcheretianskid3a108a2016-02-28 17:12:21 +0200499static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
500{
501 struct iwl_mvm *mvm =
502 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
503 struct ieee80211_vif *tx_blocked_vif;
504 struct iwl_mvm_vif *mvmvif;
505
506 mutex_lock(&mvm->mutex);
507
508 tx_blocked_vif =
509 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
510 lockdep_is_held(&mvm->mutex));
511
512 if (!tx_blocked_vif)
513 goto unlock;
514
515 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
516 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
517 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
518unlock:
519 mutex_unlock(&mvm->mutex);
520}
521
Johannes Berg8ca151b2013-01-24 14:25:36 +0100522static struct iwl_op_mode *
523iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
524 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
525{
526 struct ieee80211_hw *hw;
527 struct iwl_op_mode *op_mode;
528 struct iwl_mvm *mvm;
529 struct iwl_trans_config trans_cfg = {};
530 static const u8 no_reclaim_cmds[] = {
531 TX_CMD,
532 };
533 int err, scan_size;
Ido Yariv0c0e2c72014-01-16 21:12:02 -0500534 u32 min_backoff;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100535
Emmanuel Grumbachc4d83272014-01-14 08:45:26 +0200536 /*
537 * We use IWL_MVM_STATION_COUNT to check the validity of the station
538 * index all over the driver - check that its value corresponds to the
539 * array size.
540 */
541 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
542
Johannes Berg8ca151b2013-01-24 14:25:36 +0100543 /********************************
544 * 1. Allocating and configuring HW data
545 ********************************/
546 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
547 sizeof(struct iwl_mvm),
548 &iwl_mvm_hw_ops);
549 if (!hw)
550 return NULL;
551
Oren Givon745160e2014-06-16 10:54:52 +0300552 if (cfg->max_rx_agg_size)
553 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
554
Gregory Greenman77d96732014-09-02 16:04:58 +0200555 if (cfg->max_tx_agg_size)
556 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
557
Johannes Berg8ca151b2013-01-24 14:25:36 +0100558 op_mode = hw->priv;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100559
560 mvm = IWL_OP_MODE_GET_MVM(op_mode);
561 mvm->dev = trans->dev;
562 mvm->trans = trans;
563 mvm->cfg = cfg;
564 mvm->fw = fw;
565 mvm->hw = hw;
566
Johannes Berg0316d302015-05-22 13:41:07 +0200567 if (iwl_mvm_has_new_rx_api(mvm)) {
568 op_mode->ops = &iwl_mvm_ops_mq;
Sara Sharon25c2b222016-02-07 13:09:59 +0200569 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc);
Johannes Berg0316d302015-05-22 13:41:07 +0200570 } else {
571 op_mode->ops = &iwl_mvm_ops;
Sara Sharon25c2b222016-02-07 13:09:59 +0200572 trans->rx_mpdu_cmd_hdr_size =
573 sizeof(struct iwl_rx_mpdu_res_start);
Johannes Berg0316d302015-05-22 13:41:07 +0200574
575 if (WARN_ON(trans->num_rx_queues > 1))
576 goto out_free;
577 }
578
Eran Harary291aa7c2013-07-03 11:00:06 +0300579 mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
580
Liad Kaufmancf961e12015-08-13 19:16:08 +0300581 if (!iwl_mvm_is_dqa_supported(mvm)) {
Liad Kaufmancf961e12015-08-13 19:16:08 +0300582 mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
Liad Kaufman28d07932015-09-01 16:36:25 +0300583
584 if (mvm->cfg->base_params->num_of_queues == 16) {
585 mvm->aux_queue = 11;
586 mvm->first_agg_queue = 12;
587 } else {
588 mvm->aux_queue = 15;
589 mvm->first_agg_queue = 16;
590 }
Liad Kaufmancf961e12015-08-13 19:16:08 +0300591 } else {
Liad Kaufman28d07932015-09-01 16:36:25 +0300592 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
Liad Kaufmancf961e12015-08-13 19:16:08 +0300593 mvm->first_agg_queue = IWL_MVM_DQA_MIN_DATA_QUEUE;
594 mvm->last_agg_queue = IWL_MVM_DQA_MAX_DATA_QUEUE;
595 }
Lilach Edelstein1f3b0ff2013-10-06 13:03:32 +0200596 mvm->sf_state = SF_UNINIT;
Emmanuel Grumbach7b358f02014-10-23 14:42:33 +0300597 mvm->cur_ucode = IWL_UCODE_INIT;
Andrei Otcheretianskic89e3332016-01-26 18:12:28 +0200598 mvm->drop_bcn_ap_mode = true;
Eytan Lifshitz19e737c2013-09-09 13:30:15 +0200599
Johannes Berg8ca151b2013-01-24 14:25:36 +0100600 mutex_init(&mvm->mutex);
Eliad Pellerd15a7472014-03-27 18:53:12 +0200601 mutex_init(&mvm->d0i3_suspend_mutex);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100602 spin_lock_init(&mvm->async_handlers_lock);
603 INIT_LIST_HEAD(&mvm->time_event_list);
Ariej Marjiehb1128892014-07-16 21:11:12 +0300604 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100605 INIT_LIST_HEAD(&mvm->async_handlers_list);
606 spin_lock_init(&mvm->time_event_lock);
Liad Kaufman4ecafae2015-07-14 13:36:18 +0300607 spin_lock_init(&mvm->queue_info_lock);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100608
609 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
610 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
611 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
Eliad Peller37577fe2013-12-05 17:19:39 +0200612 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +0200613 INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
Arik Nemtsov1d3c3f62014-10-23 18:03:10 +0300614 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
Luca Coelho69e04642016-05-03 12:18:33 +0300615 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
Liad Kaufman24afba72015-07-28 18:56:08 +0300616 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100617
Arik Nemtsovb2492502014-03-13 12:21:50 +0200618 spin_lock_init(&mvm->d0i3_tx_lock);
Eliad Peller576eeee2014-07-01 18:38:38 +0300619 spin_lock_init(&mvm->refs_lock);
Arik Nemtsovb2492502014-03-13 12:21:50 +0200620 skb_queue_head_init(&mvm->d0i3_tx);
621 init_waitqueue_head(&mvm->d0i3_exit_waitq);
622
Sara Sharon0636b932016-02-18 14:21:12 +0200623 atomic_set(&mvm->queue_sync_counter, 0);
624
Johannes Berg8ca151b2013-01-24 14:25:36 +0100625 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
626
Andrei Otcheretianskid3a108a2016-02-28 17:12:21 +0200627 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
628
Johannes Berg8ca151b2013-01-24 14:25:36 +0100629 /*
630 * Populate the state variables that the transport layer needs
631 * to know about.
632 */
633 trans_cfg.op_mode = op_mode;
634 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
635 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
Emmanuel Grumbach6c4fbcb2015-11-10 11:57:41 +0200636 switch (iwlwifi_mod_params.amsdu_size) {
Emmanuel Grumbach4bdd4df2016-04-07 16:44:42 +0300637 case IWL_AMSDU_DEF:
Emmanuel Grumbach6c4fbcb2015-11-10 11:57:41 +0200638 case IWL_AMSDU_4K:
639 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
640 break;
641 case IWL_AMSDU_8K:
642 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
643 break;
644 case IWL_AMSDU_12K:
645 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
646 break;
647 default:
648 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
649 iwlwifi_mod_params.amsdu_size);
650 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
651 }
Emmanuel Grumbach4bdd4df2016-04-07 16:44:42 +0300652
653 /* the hardware splits the A-MSDU */
654 if (mvm->cfg->mq_rx_supported)
655 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100656
Luca Coelho4b87e5a2016-09-12 16:03:30 +0300657 trans->wide_cmd_header = true;
658 trans_cfg.bc_table_dword = true;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100659
Sharon Dvir39bdb172015-10-15 18:18:09 +0300660 trans_cfg.command_groups = iwl_mvm_groups;
661 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100662
Liad Kaufman097129c2015-08-09 18:28:43 +0300663 if (iwl_mvm_is_dqa_supported(mvm))
664 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
665 else
666 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
Johannes Bergb2d81db2014-08-01 20:48:25 +0200667 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
Emmanuel Grumbach3a736bc2014-09-10 11:16:41 +0300668 trans_cfg.scd_set_active = true;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100669
Johannes Berg21cb3222016-06-21 13:11:48 +0200670 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
671 driver_data[2]);
672
Liad Kaufmanb4821762014-10-19 16:58:15 +0200673 trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
Emmanuel Grumbach41837ca92015-10-21 09:00:07 +0300674 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
Liad Kaufmanb4821762014-10-19 16:58:15 +0200675
Emmanuel Grumbach4cf677f2015-01-12 14:38:29 +0200676 /* Set a short watchdog for the command queue */
677 trans_cfg.cmd_q_wdg_timeout =
Emmanuel Grumbach5d42e7b2015-03-19 20:04:51 +0200678 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
Emmanuel Grumbach4cf677f2015-01-12 14:38:29 +0200679
Johannes Berg8ca151b2013-01-24 14:25:36 +0100680 snprintf(mvm->hw->wiphy->fw_version,
681 sizeof(mvm->hw->wiphy->fw_version),
682 "%s", fw->fw_version);
683
684 /* Configure transport layer */
685 iwl_trans_configure(mvm->trans, &trans_cfg);
686
687 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
Liad Kaufman09e350f2014-11-17 11:41:07 +0200688 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
689 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
690 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
691 sizeof(trans->dbg_conf_tlv));
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +0200692 trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100693
694 /* set up notification wait support */
695 iwl_notification_wait_init(&mvm->notif_wait);
696
697 /* Init phy db */
698 mvm->phy_db = iwl_phy_db_init(trans);
699 if (!mvm->phy_db) {
700 IWL_ERR(mvm, "Cannot init phy_db\n");
701 goto out_free;
702 }
703
704 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
705 mvm->cfg->name, mvm->trans->hw_rev);
706
Eran Harary4fb06282015-04-19 10:05:18 +0300707 if (iwlwifi_mod_params.nvm_file)
Eran Hararye02a9d62014-05-07 12:27:10 +0300708 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
Eran Harary4fb06282015-04-19 10:05:18 +0300709 else
710 IWL_DEBUG_EEPROM(mvm->trans->dev,
711 "working without external nvm file\n");
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +0300712
Sara Sharon56f29292016-08-31 12:37:55 +0300713 err = iwl_trans_start_hw(mvm->trans);
714 if (err)
Eran Harary14b485f2014-04-23 10:46:09 +0300715 goto out_free;
716
Sara Sharon56f29292016-08-31 12:37:55 +0300717 mutex_lock(&mvm->mutex);
718 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE);
719 err = iwl_run_init_mvm_ucode(mvm, true);
720 if (!err || !iwlmvm_mod_params.init_dbg)
721 iwl_mvm_stop_device(mvm);
722 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE);
723 mutex_unlock(&mvm->mutex);
724 /* returns 0 if successful, 1 if success but in rfkill */
725 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
726 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
727 goto out_free;
Eytan Lifshitz81a67e32013-09-11 12:39:18 +0200728 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100729
David Spinadeld2496222014-05-20 12:46:37 +0300730 scan_size = iwl_mvm_scan_size(mvm);
David Spinadelfb98be52014-05-04 12:51:10 +0300731
Johannes Berg8ca151b2013-01-24 14:25:36 +0100732 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
733 if (!mvm->scan_cmd)
734 goto out_free;
735
Haim Dreyfuss5a4b2af2015-01-13 11:54:51 +0200736 /* Set EBS as successful as long as not stated otherwise by the FW. */
737 mvm->last_ebs_successful = true;
738
Johannes Berg8ca151b2013-01-24 14:25:36 +0100739 err = iwl_mvm_mac_setup_register(mvm);
740 if (err)
741 goto out_free;
742
Chaya Rachel Ivgi04ddc2a2016-03-03 13:31:39 +0200743 min_backoff = calc_min_backoff(trans, cfg);
744 iwl_mvm_thermal_initialize(mvm, min_backoff);
745
Johannes Berg8ca151b2013-01-24 14:25:36 +0100746 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
747 if (err)
748 goto out_unregister;
749
Matti Gottlieb3848ab62013-07-30 15:29:37 +0300750 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
751
Luca Coelho33c85ea2016-02-22 15:44:13 +0200752 /* The transport always starts with a taken reference, we can
753 * release it now if d0i3 is supported */
754 if (iwl_mvm_is_d0i3_supported(mvm))
755 iwl_trans_unref(mvm->trans);
Eliad Peller7498cf42014-01-16 17:10:44 +0200756
Gregory Greenmance792912015-06-02 18:06:16 +0300757 iwl_mvm_tof_init(mvm);
758
Johannes Berg8ca151b2013-01-24 14:25:36 +0100759 return op_mode;
760
761 out_unregister:
762 ieee80211_unregister_hw(mvm->hw);
Eliad Peller91b0d112014-01-05 12:41:12 +0200763 iwl_mvm_leds_exit(mvm);
Chaya Rachel Ivgic221daf2015-12-29 09:54:49 +0200764 iwl_mvm_thermal_exit(mvm);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100765 out_free:
Andrei Otcheretianskidbf73d42015-09-30 12:26:23 +0200766 flush_delayed_work(&mvm->fw_dump_wk);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100767 iwl_phy_db_free(mvm->phy_db);
768 kfree(mvm->scan_cmd);
Sara Sharon56f29292016-08-31 12:37:55 +0300769 iwl_trans_op_mode_leave(trans);
770
Johannes Berg8ca151b2013-01-24 14:25:36 +0100771 ieee80211_free_hw(mvm->hw);
772 return NULL;
773}
774
775static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
776{
777 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
778 int i;
779
Luca Coelhoe27deb42016-03-01 10:30:48 +0200780 /* If d0i3 is supported, we have released the reference that
781 * the transport started with, so we should take it back now
782 * that we are leaving.
783 */
784 if (iwl_mvm_is_d0i3_supported(mvm))
785 iwl_trans_ref(mvm->trans);
786
Johannes Berg8ca151b2013-01-24 14:25:36 +0100787 iwl_mvm_leds_exit(mvm);
788
Chaya Rachel Ivgic221daf2015-12-29 09:54:49 +0200789 iwl_mvm_thermal_exit(mvm);
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +0300790
Johannes Berg8ca151b2013-01-24 14:25:36 +0100791 ieee80211_unregister_hw(mvm->hw);
792
793 kfree(mvm->scan_cmd);
Eliad Pellere59647e2013-11-28 14:08:50 +0200794 kfree(mvm->mcast_filter_cmd);
795 mvm->mcast_filter_cmd = NULL;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100796
Johannes Bergafc66bb2013-05-03 11:44:16 +0200797#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
798 kfree(mvm->d3_resume_sram);
799#endif
800
Arik Nemtsova4082842013-11-24 19:10:46 +0200801 iwl_trans_op_mode_leave(mvm->trans);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100802
803 iwl_phy_db_free(mvm->phy_db);
804 mvm->phy_db = NULL;
805
Johannes Berg8ca151b2013-01-24 14:25:36 +0100806 iwl_free_nvm_data(mvm->nvm_data);
Eran Hararyae2b21b2014-01-09 08:08:24 +0200807 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
Johannes Berg8ca151b2013-01-24 14:25:36 +0100808 kfree(mvm->nvm_sections[i].data);
809
Gregory Greenmance792912015-06-02 18:06:16 +0300810 iwl_mvm_tof_clean(mvm);
811
Emmanuel Grumbacha2a57a32016-03-15 15:36:36 +0200812 mutex_destroy(&mvm->mutex);
813 mutex_destroy(&mvm->d0i3_suspend_mutex);
814
Johannes Berg8ca151b2013-01-24 14:25:36 +0100815 ieee80211_free_hw(mvm->hw);
816}
817
818struct iwl_async_handler_entry {
819 struct list_head list;
820 struct iwl_rx_cmd_buffer rxb;
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200821 enum iwl_rx_handler_context context;
Johannes Berg04168412015-06-23 21:22:09 +0200822 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100823};
824
825void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
826{
827 struct iwl_async_handler_entry *entry, *tmp;
828
829 spin_lock_bh(&mvm->async_handlers_lock);
830 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
831 iwl_free_rxb(&entry->rxb);
832 list_del(&entry->list);
833 kfree(entry);
834 }
835 spin_unlock_bh(&mvm->async_handlers_lock);
836}
837
838static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
839{
840 struct iwl_mvm *mvm =
841 container_of(wk, struct iwl_mvm, async_handlers_wk);
842 struct iwl_async_handler_entry *entry, *tmp;
Johannes Berg80982032016-08-31 22:16:11 +0200843 LIST_HEAD(local_list);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100844
845 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
Johannes Berg8ca151b2013-01-24 14:25:36 +0100846
847 /*
848 * Sync with Rx path with a lock. Remove all the entries from this list,
849 * add them to a local one (lock free), and then handle them.
850 */
851 spin_lock_bh(&mvm->async_handlers_lock);
852 list_splice_init(&mvm->async_handlers_list, &local_list);
853 spin_unlock_bh(&mvm->async_handlers_lock);
854
855 list_for_each_entry_safe(entry, tmp, &local_list, list) {
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200856 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
857 mutex_lock(&mvm->mutex);
Johannes Berg04168412015-06-23 21:22:09 +0200858 entry->fn(mvm, &entry->rxb);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100859 iwl_free_rxb(&entry->rxb);
860 list_del(&entry->list);
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200861 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
862 mutex_unlock(&mvm->mutex);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100863 kfree(entry);
864 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100865}
866
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200867static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
868 struct iwl_rx_packet *pkt)
869{
870 struct iwl_fw_dbg_trigger_tlv *trig;
871 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200872 int i;
873
874 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
875 return;
876
877 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
878 cmds_trig = (void *)trig->data;
879
880 if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
881 return;
882
883 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
884 /* don't collect on CMD 0 */
885 if (!cmds_trig->cmds[i].cmd_id)
886 break;
887
Sara Sharon0ab66e62015-07-13 14:23:59 +0300888 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
889 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200890 continue;
891
Johannes Berg5d4f9292015-03-31 09:12:54 +0200892 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
Sara Sharon0ab66e62015-07-13 14:23:59 +0300893 "CMD 0x%02x.%02x received",
894 pkt->hdr.group_id, pkt->hdr.cmd);
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200895 break;
896 }
897}
898
Johannes Berg0316d302015-05-22 13:41:07 +0200899static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
900 struct iwl_rx_cmd_buffer *rxb,
901 struct iwl_rx_packet *pkt)
Johannes Berg8ca151b2013-01-24 14:25:36 +0100902{
Johannes Berg0316d302015-05-22 13:41:07 +0200903 int i;
Johannes Berg1738d602015-05-22 12:09:44 +0200904
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200905 iwl_mvm_rx_check_trigger(mvm, pkt);
906
Johannes Berg8ca151b2013-01-24 14:25:36 +0100907 /*
908 * Do the notification wait before RX handlers so
909 * even if the RX handler consumes the RXB we have
910 * access to it in the notification wait entry.
911 */
912 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
913
914 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
915 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200916 struct iwl_async_handler_entry *entry;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100917
Avraham Stern1230b162015-07-09 17:17:03 +0300918 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200919 continue;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100920
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200921 if (rx_h->context == RX_HANDLER_SYNC) {
Johannes Berg04168412015-06-23 21:22:09 +0200922 rx_h->fn(mvm, rxb);
Johannes Bergf7e64692015-06-23 21:58:17 +0200923 return;
Johannes Berg04168412015-06-23 21:22:09 +0200924 }
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200925
926 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
927 /* we can't do much... */
928 if (!entry)
Johannes Bergf7e64692015-06-23 21:58:17 +0200929 return;
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200930
931 entry->rxb._page = rxb_steal_page(rxb);
932 entry->rxb._offset = rxb->_offset;
933 entry->rxb._rx_page_order = rxb->_rx_page_order;
934 entry->fn = rx_h->fn;
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200935 entry->context = rx_h->context;
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200936 spin_lock(&mvm->async_handlers_lock);
937 list_add_tail(&entry->list, &mvm->async_handlers_list);
938 spin_unlock(&mvm->async_handlers_lock);
939 schedule_work(&mvm->async_handlers_wk);
940 break;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100941 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100942}
943
Johannes Berg0316d302015-05-22 13:41:07 +0200944static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
945 struct napi_struct *napi,
946 struct iwl_rx_cmd_buffer *rxb)
947{
948 struct iwl_rx_packet *pkt = rxb_addr(rxb);
949 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200950 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +0200951
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200952 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Johannes Berg0316d302015-05-22 13:41:07 +0200953 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200954 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
Johannes Berg0316d302015-05-22 13:41:07 +0200955 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
956 else
957 iwl_mvm_rx_common(mvm, rxb, pkt);
958}
959
960static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
961 struct napi_struct *napi,
962 struct iwl_rx_cmd_buffer *rxb)
963{
964 struct iwl_rx_packet *pkt = rxb_addr(rxb);
965 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200966 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +0200967
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200968 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Johannes Berg780e87c2015-09-03 14:56:10 +0200969 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200970 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
971 RX_QUEUES_NOTIFICATION)))
Sara Sharon94bb4482015-12-16 18:48:28 +0200972 iwl_mvm_rx_queue_notif(mvm, rxb, 0);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200973 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
Johannes Berg58035432016-04-27 13:33:26 +0200974 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
Johannes Berg0316d302015-05-22 13:41:07 +0200975 else
976 iwl_mvm_rx_common(mvm, rxb, pkt);
977}
978
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +0200979void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
Johannes Berg8ca151b2013-01-24 14:25:36 +0100980{
Liad Kaufman4ecafae2015-07-14 13:36:18 +0300981 int q;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100982
Liad Kaufman4ecafae2015-07-14 13:36:18 +0300983 if (WARN_ON_ONCE(!mq))
Johannes Berg8ca151b2013-01-24 14:25:36 +0100984 return;
985
Liad Kaufman4ecafae2015-07-14 13:36:18 +0300986 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
987 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
988 IWL_DEBUG_TX_QUEUES(mvm,
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +0200989 "mac80211 %d already stopped\n", q);
Liad Kaufman4ecafae2015-07-14 13:36:18 +0300990 continue;
991 }
992
993 ieee80211_stop_queue(mvm->hw, q);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100994 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100995}
996
Emmanuel Grumbach156f92f2015-11-24 14:55:18 +0200997static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
998 const struct iwl_device_cmd *cmd)
999{
1000 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1001
1002 /*
1003 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1004 * commands that need to block the Tx queues.
1005 */
1006 iwl_trans_block_txq_ptrs(mvm->trans, false);
1007}
1008
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001009static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001010{
1011 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001012 unsigned long mq;
Johannes Berg8ca151b2013-01-24 14:25:36 +01001013
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001014 spin_lock_bh(&mvm->queue_info_lock);
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001015 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211;
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001016 spin_unlock_bh(&mvm->queue_info_lock);
1017
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001018 iwl_mvm_stop_mac_queues(mvm, mq);
1019}
1020
1021void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
1022{
1023 int q;
1024
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001025 if (WARN_ON_ONCE(!mq))
Johannes Berg8ca151b2013-01-24 14:25:36 +01001026 return;
1027
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001028 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1029 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
1030 IWL_DEBUG_TX_QUEUES(mvm,
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001031 "mac80211 %d still stopped\n", q);
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001032 continue;
1033 }
1034
1035 ieee80211_wake_queue(mvm->hw, q);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001036 }
Johannes Berg8ca151b2013-01-24 14:25:36 +01001037}
1038
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001039static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1040{
1041 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1042 unsigned long mq;
1043
1044 spin_lock_bh(&mvm->queue_info_lock);
1045 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211;
1046 spin_unlock_bh(&mvm->queue_info_lock);
1047
1048 iwl_mvm_start_mac_queues(mvm, mq);
1049}
1050
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +03001051void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1052{
1053 if (state)
1054 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1055 else
1056 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1057
1058 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
1059}
1060
Johannes Berg14cfca72014-02-25 20:50:53 +01001061static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001062{
1063 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Emmanuel Grumbach31b8b342014-11-02 15:48:09 +02001064 bool calibrating = ACCESS_ONCE(mvm->calibrating);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001065
1066 if (state)
1067 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1068 else
1069 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1070
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +03001071 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
Johannes Berg14cfca72014-02-25 20:50:53 +01001072
Emmanuel Grumbach31b8b342014-11-02 15:48:09 +02001073 /* iwl_run_init_mvm_ucode is waiting for results, abort it */
1074 if (calibrating)
1075 iwl_abort_notification_waits(&mvm->notif_wait);
1076
1077 /*
1078 * Stop the device if we run OPERATIONAL firmware or if we are in the
1079 * middle of the calibrations.
1080 */
1081 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001082}
1083
1084static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1085{
1086 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1087 struct ieee80211_tx_info *info;
1088
1089 info = IEEE80211_SKB_CB(skb);
1090 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1091 ieee80211_free_txskb(mvm->hw, skb);
1092}
1093
Johannes Bergac1ed412013-07-04 15:25:25 +02001094struct iwl_mvm_reprobe {
1095 struct device *dev;
1096 struct work_struct work;
1097};
1098
1099static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1100{
1101 struct iwl_mvm_reprobe *reprobe;
1102
1103 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1104 if (device_reprobe(reprobe->dev))
1105 dev_err(reprobe->dev, "reprobe failed!\n");
1106 kfree(reprobe);
1107 module_put(THIS_MODULE);
1108}
1109
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001110static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
1111{
1112 struct iwl_mvm *mvm =
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +02001113 container_of(work, struct iwl_mvm, fw_dump_wk.work);
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001114
Liad Kaufmanfb2380a2015-01-01 17:42:46 +02001115 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
1116 return;
1117
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001118 mutex_lock(&mvm->mutex);
Emmanuel Grumbach145d90b2015-04-13 12:05:48 +03001119
1120 /* stop recording */
1121 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
1122 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
1123 } else {
1124 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
1125 /* wait before we collect the data till the DBGC stop */
1126 udelay(100);
1127 }
1128
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001129 iwl_mvm_fw_error_dump(mvm);
Emmanuel Grumbache66e0b72014-12-29 09:42:37 +02001130
1131 /* start recording again if the firmware is not crashed */
1132 WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
Emmanuel Grumbach9beda942015-03-02 14:39:03 +02001133 mvm->fw->dbg_dest_tlv &&
1134 iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
Emmanuel Grumbache66e0b72014-12-29 09:42:37 +02001135
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001136 mutex_unlock(&mvm->mutex);
Liad Kaufmanfb2380a2015-01-01 17:42:46 +02001137
1138 iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001139}
1140
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001141void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001142{
Johannes Berg8ca151b2013-01-24 14:25:36 +01001143 iwl_abort_notification_waits(&mvm->notif_wait);
1144
1145 /*
David Spinadel992f81f2014-01-09 14:22:55 +02001146 * This is a bit racy, but worst case we tell mac80211 about
1147 * a stopped/aborted scan when that was already done which
1148 * is not a problem. It is necessary to abort any os scan
1149 * here because mac80211 requires having the scan cleared
1150 * before restarting.
1151 * We'll reset the scan_status to NONE in restart cleanup in
1152 * the next start() call from mac80211. If restart isn't called
1153 * (no fw restart) scan status will stay busy.
1154 */
David Spinadel4ffb3652015-03-10 10:06:02 +02001155 iwl_mvm_report_scan_aborted(mvm);
David Spinadel992f81f2014-01-09 14:22:55 +02001156
1157 /*
Johannes Berg8ca151b2013-01-24 14:25:36 +01001158 * If we're restarting already, don't cycle restarts.
1159 * If INIT fw asserted, it will likely fail again.
1160 * If WoWLAN fw asserted, don't restart either, mac80211
1161 * can't recover this since we're already half suspended.
1162 */
Luciano Coelho60f10712015-01-28 09:00:27 +02001163 if (!mvm->restart_fw && fw_error) {
Oren Givon36fb9012015-07-15 15:47:28 +03001164 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1165 NULL);
Luciano Coelho60f10712015-01-28 09:00:27 +02001166 } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1167 &mvm->status)) {
Johannes Bergac1ed412013-07-04 15:25:25 +02001168 struct iwl_mvm_reprobe *reprobe;
1169
1170 IWL_ERR(mvm,
1171 "Firmware error during reconfiguration - reprobe!\n");
1172
1173 /*
1174 * get a module reference to avoid doing this while unloading
1175 * anyway and to avoid scheduling a work with code that's
1176 * being removed.
1177 */
1178 if (!try_module_get(THIS_MODULE)) {
1179 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1180 return;
1181 }
1182
1183 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1184 if (!reprobe) {
1185 module_put(THIS_MODULE);
1186 return;
1187 }
1188 reprobe->dev = mvm->trans->dev;
1189 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1190 schedule_work(&reprobe->work);
Luciano Coelho60f10712015-01-28 09:00:27 +02001191 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) {
Eliad Peller7498cf42014-01-16 17:10:44 +02001192 /* don't let the transport/FW power down */
1193 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1194
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001195 if (fw_error && mvm->restart_fw > 0)
Eran Harary291aa7c2013-07-03 11:00:06 +03001196 mvm->restart_fw--;
Johannes Berg8ca151b2013-01-24 14:25:36 +01001197 ieee80211_restart_hw(mvm->hw);
1198 }
1199}
1200
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001201static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1202{
1203 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1204
1205 iwl_mvm_dump_nic_error_log(mvm);
Emmanuel Grumbach1bd3cbc2014-03-18 21:15:06 +02001206
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001207 iwl_mvm_nic_restart(mvm, true);
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001208}
1209
Johannes Berg8ca151b2013-01-24 14:25:36 +01001210static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1211{
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001212 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1213
Johannes Berg8ca151b2013-01-24 14:25:36 +01001214 WARN_ON(1);
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001215 iwl_mvm_nic_restart(mvm, true);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001216}
1217
Eliad Peller37577fe2013-12-05 17:19:39 +02001218struct iwl_d0i3_iter_data {
1219 struct iwl_mvm *mvm;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001220 struct ieee80211_vif *connected_vif;
Eliad Peller37577fe2013-12-05 17:19:39 +02001221 u8 ap_sta_id;
1222 u8 vif_count;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001223 u8 offloading_tid;
1224 bool disable_offloading;
Eliad Peller37577fe2013-12-05 17:19:39 +02001225};
1226
Arik Nemtsovb2492502014-03-13 12:21:50 +02001227static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1228 struct ieee80211_vif *vif,
1229 struct iwl_d0i3_iter_data *iter_data)
1230{
1231 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001232 struct iwl_mvm_sta *mvmsta;
1233 u32 available_tids = 0;
1234 u8 tid;
1235
1236 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1237 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1238 return false;
1239
Sara Sharon13303c0f2016-04-10 15:51:54 +03001240 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id);
1241 if (!mvmsta)
Arik Nemtsovb2492502014-03-13 12:21:50 +02001242 return false;
1243
Arik Nemtsovb2492502014-03-13 12:21:50 +02001244 spin_lock_bh(&mvmsta->lock);
1245 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1246 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1247
1248 /*
1249 * in case of pending tx packets, don't use this tid
1250 * for offloading in order to prevent reuse of the same
1251 * qos seq counters.
1252 */
1253 if (iwl_mvm_tid_queued(tid_data))
1254 continue;
1255
1256 if (tid_data->state != IWL_AGG_OFF)
1257 continue;
1258
1259 available_tids |= BIT(tid);
1260 }
1261 spin_unlock_bh(&mvmsta->lock);
1262
1263 /*
1264 * disallow protocol offloading if we have no available tid
1265 * (with no pending frames and no active aggregation,
1266 * as we don't handle "holes" properly - the scheduler needs the
1267 * frame's seq number and TFD index to match)
1268 */
1269 if (!available_tids)
1270 return true;
1271
1272 /* for simplicity, just use the first available tid */
1273 iter_data->offloading_tid = ffs(available_tids) - 1;
1274 return false;
1275}
1276
Eliad Pellerd6230972013-11-03 20:09:08 +02001277static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1278 struct ieee80211_vif *vif)
1279{
Eliad Peller37577fe2013-12-05 17:19:39 +02001280 struct iwl_d0i3_iter_data *data = _data;
1281 struct iwl_mvm *mvm = data->mvm;
1282 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Eliad Pellerd6230972013-11-03 20:09:08 +02001283 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1284
1285 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1286 if (vif->type != NL80211_IFTYPE_STATION ||
1287 !vif->bss_conf.assoc)
1288 return;
1289
Arik Nemtsovb2492502014-03-13 12:21:50 +02001290 /*
1291 * in case of pending tx packets or active aggregations,
1292 * avoid offloading features in order to prevent reuse of
1293 * the same qos seq counters.
1294 */
1295 if (iwl_mvm_disallow_offloading(mvm, vif, data))
1296 data->disable_offloading = true;
1297
Eliad Pellerd6230972013-11-03 20:09:08 +02001298 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
Sara Sharonc97dab42015-11-19 11:53:49 +02001299 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1300 false, flags);
Eliad Pellerd6230972013-11-03 20:09:08 +02001301
1302 /*
1303 * on init/association, mvm already configures POWER_TABLE_CMD
1304 * and REPLY_MCAST_FILTER_CMD, so currently don't
1305 * reconfigure them (we might want to use different
1306 * params later on, though).
1307 */
Eliad Peller37577fe2013-12-05 17:19:39 +02001308 data->ap_sta_id = mvmvif->ap_sta_id;
1309 data->vif_count++;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001310
1311 /*
1312 * no new commands can be sent at this stage, so it's safe
1313 * to save the vif pointer during d0i3 entrance.
1314 */
1315 data->connected_vif = vif;
Eliad Pellerd6230972013-11-03 20:09:08 +02001316}
1317
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001318static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001319 struct iwl_wowlan_config_cmd *cmd,
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001320 struct iwl_d0i3_iter_data *iter_data)
1321{
1322 struct ieee80211_sta *ap_sta;
1323 struct iwl_mvm_sta *mvm_ap_sta;
1324
1325 if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1326 return;
1327
1328 rcu_read_lock();
1329
1330 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1331 if (IS_ERR_OR_NULL(ap_sta))
1332 goto out;
1333
1334 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001335 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001336 cmd->offloading_tid = iter_data->offloading_tid;
Sara Sharon70b4c532015-11-19 13:12:15 +02001337 cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
Sara Sharon0db056d2015-12-29 11:07:15 +02001338 ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON;
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001339 /*
1340 * The d0i3 uCode takes care of the nonqos counters,
1341 * so configure only the qos seq ones.
1342 */
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001343 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001344out:
1345 rcu_read_unlock();
1346}
Eliad Peller67359432014-12-09 15:23:54 +02001347
1348int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
Eliad Pellerb3370d42013-11-25 15:20:16 +02001349{
1350 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001351 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001352 int ret;
Eliad Peller37577fe2013-12-05 17:19:39 +02001353 struct iwl_d0i3_iter_data d0i3_iter_data = {
1354 .mvm = mvm,
1355 };
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001356 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1357 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1358 IWL_WOWLAN_WAKEUP_BEACON_MISS |
Sara Sharon0db056d2015-12-29 11:07:15 +02001359 IWL_WOWLAN_WAKEUP_LINK_CHANGE),
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001360 };
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001361 struct iwl_d3_manager_config d3_cfg_cmd = {
1362 .min_sleep_time = cpu_to_le32(1000),
Eliad Pellerd9f1fc22014-12-23 15:05:14 +02001363 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001364 };
Eliad Pellerb3370d42013-11-25 15:20:16 +02001365
1366 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001367
Eliad Peller08f0d232015-12-10 15:47:11 +02001368 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1369 return -EINVAL;
1370
Arik Nemtsovb2492502014-03-13 12:21:50 +02001371 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001372
Eliad Pellerf4cf8682014-11-04 16:57:06 +02001373 /*
1374 * iwl_mvm_ref_sync takes a reference before checking the flag.
1375 * so by checking there is no held reference we prevent a state
1376 * in which iwl_mvm_ref_sync continues successfully while we
1377 * configure the firmware to enter d0i3
1378 */
1379 if (iwl_mvm_ref_taken(mvm)) {
1380 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1381 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
Eliad Pellercaf15782014-11-09 15:25:33 +02001382 wake_up(&mvm->d0i3_exit_waitq);
Eliad Pellerf4cf8682014-11-04 16:57:06 +02001383 return 1;
1384 }
1385
Eliad Pellerd6230972013-11-03 20:09:08 +02001386 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1387 IEEE80211_IFACE_ITER_NORMAL,
1388 iwl_mvm_enter_d0i3_iterator,
Eliad Peller37577fe2013-12-05 17:19:39 +02001389 &d0i3_iter_data);
1390 if (d0i3_iter_data.vif_count == 1) {
1391 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001392 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
Eliad Peller37577fe2013-12-05 17:19:39 +02001393 } else {
1394 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1395 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001396 mvm->d0i3_offloading = false;
Eliad Peller37577fe2013-12-05 17:19:39 +02001397 }
Eliad Pellerd6230972013-11-03 20:09:08 +02001398
Emmanuel Grumbachecc7c512015-08-17 15:54:41 +03001399 /* make sure we have no running tx while configuring the seqno */
1400 synchronize_net();
1401
Luca Coelhoeb3908d2015-10-02 18:13:10 +03001402 /* Flush the hw queues, in case something got queued during entry */
1403 ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags);
1404 if (ret)
1405 return ret;
1406
Eliad Peller183edd82015-09-01 14:16:00 +03001407 /* configure wowlan configuration only if needed */
1408 if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
Sara Sharon0db056d2015-12-29 11:07:15 +02001409 /* wake on beacons only if beacon storing isn't supported */
1410 if (!fw_has_capa(&mvm->fw->ucode_capa,
1411 IWL_UCODE_TLV_CAPA_BEACON_STORING))
1412 wowlan_config_cmd.wakeup_filter |=
1413 cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING);
1414
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001415 iwl_mvm_wowlan_config_key_params(mvm,
1416 d0i3_iter_data.connected_vif,
1417 true, flags);
1418
Eliad Peller183edd82015-09-01 14:16:00 +03001419 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1420 &d0i3_iter_data);
1421
1422 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1423 sizeof(wowlan_config_cmd),
1424 &wowlan_config_cmd);
1425 if (ret)
1426 return ret;
1427 }
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001428
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001429 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1430 flags | CMD_MAKE_TRANS_IDLE,
1431 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
Eliad Pellerb3370d42013-11-25 15:20:16 +02001432}
1433
Eliad Pellerd6230972013-11-03 20:09:08 +02001434static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1435 struct ieee80211_vif *vif)
1436{
1437 struct iwl_mvm *mvm = _data;
1438 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1439
1440 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1441 if (vif->type != NL80211_IFTYPE_STATION ||
1442 !vif->bss_conf.assoc)
1443 return;
1444
1445 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1446}
1447
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001448struct iwl_mvm_d0i3_exit_work_iter_data {
David Spinadelb3df2242015-08-06 10:26:50 +03001449 struct iwl_mvm *mvm;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001450 struct iwl_wowlan_status *status;
David Spinadelb3df2242015-08-06 10:26:50 +03001451 u32 wakeup_reasons;
1452};
1453
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001454static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1455 struct ieee80211_vif *vif)
Eliad Peller37577fe2013-12-05 17:19:39 +02001456{
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001457 struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
Eliad Peller37577fe2013-12-05 17:19:39 +02001458 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001459 u32 reasons = data->wakeup_reasons;
Eliad Peller37577fe2013-12-05 17:19:39 +02001460
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001461 /* consider only the relevant station interface */
1462 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1463 data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1464 return;
1465
1466 if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1467 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1468 else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1469 ieee80211_beacon_loss(vif);
1470 else
1471 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
Eliad Peller37577fe2013-12-05 17:19:39 +02001472}
1473
Arik Nemtsovb2492502014-03-13 12:21:50 +02001474void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1475{
1476 struct ieee80211_sta *sta = NULL;
1477 struct iwl_mvm_sta *mvm_ap_sta;
1478 int i;
1479 bool wake_queues = false;
1480
1481 lockdep_assert_held(&mvm->mutex);
1482
1483 spin_lock_bh(&mvm->d0i3_tx_lock);
1484
1485 if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1486 goto out;
1487
1488 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1489
1490 /* get the sta in order to update seq numbers and re-enqueue skbs */
1491 sta = rcu_dereference_protected(
1492 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1493 lockdep_is_held(&mvm->mutex));
1494
1495 if (IS_ERR_OR_NULL(sta)) {
1496 sta = NULL;
1497 goto out;
1498 }
1499
1500 if (mvm->d0i3_offloading && qos_seq) {
1501 /* update qos seq numbers if offloading was enabled */
Johannes Berg9d8ce6a2014-12-23 16:02:40 +01001502 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001503 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1504 u16 seq = le16_to_cpu(qos_seq[i]);
1505 /* firmware stores last-used one, we store next one */
1506 seq += 0x10;
1507 mvm_ap_sta->tid_data[i].seq_number = seq;
1508 }
1509 }
1510out:
1511 /* re-enqueue (or drop) all packets */
1512 while (!skb_queue_empty(&mvm->d0i3_tx)) {
1513 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1514
1515 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1516 ieee80211_free_txskb(mvm->hw, skb);
1517
1518 /* if the skb_queue is not empty, we need to wake queues */
1519 wake_queues = true;
1520 }
1521 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1522 wake_up(&mvm->d0i3_exit_waitq);
1523 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1524 if (wake_queues)
1525 ieee80211_wake_queues(mvm->hw);
1526
1527 spin_unlock_bh(&mvm->d0i3_tx_lock);
1528}
1529
Eliad Peller37577fe2013-12-05 17:19:39 +02001530static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1531{
1532 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1533 struct iwl_host_cmd get_status_cmd = {
1534 .id = WOWLAN_GET_STATUSES,
Emmanuel Grumbacha1022922014-05-12 11:36:41 +03001535 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
Eliad Peller37577fe2013-12-05 17:19:39 +02001536 };
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001537 struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1538 .mvm = mvm,
1539 };
1540
Emmanuel Grumbach3afec6392014-03-30 09:10:28 +03001541 struct iwl_wowlan_status *status;
Eliad Peller37577fe2013-12-05 17:19:39 +02001542 int ret;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001543 u32 wakeup_reasons = 0;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001544 __le16 *qos_seq = NULL;
Eliad Peller37577fe2013-12-05 17:19:39 +02001545
1546 mutex_lock(&mvm->mutex);
1547 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1548 if (ret)
1549 goto out;
1550
1551 if (!get_status_cmd.resp_pkt)
1552 goto out;
1553
1554 status = (void *)get_status_cmd.resp_pkt->data;
1555 wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001556 qos_seq = status->qos_seq_ctr;
Eliad Peller37577fe2013-12-05 17:19:39 +02001557
1558 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1559
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001560 iter_data.wakeup_reasons = wakeup_reasons;
1561 iter_data.status = status;
1562 ieee80211_iterate_active_interfaces(mvm->hw,
1563 IEEE80211_IFACE_ITER_NORMAL,
1564 iwl_mvm_d0i3_exit_work_iter,
1565 &iter_data);
Eliad Peller37577fe2013-12-05 17:19:39 +02001566out:
Arik Nemtsovb2492502014-03-13 12:21:50 +02001567 iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
Jonathan Doron47c8b152014-11-27 16:55:25 +02001568
Eliad Peller7c014e32015-09-06 14:17:17 +03001569 IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1570 wakeup_reasons);
1571
Eliad Pellere5629be2015-04-14 11:36:23 +03001572 /* qos_seq might point inside resp_pkt, so free it only now */
1573 if (get_status_cmd.resp_pkt)
1574 iwl_free_resp(&get_status_cmd);
1575
Jonathan Doron47c8b152014-11-27 16:55:25 +02001576 /* the FW might have updated the regdomain */
1577 iwl_mvm_update_changed_regdom(mvm);
1578
Eliad Pellerd15a7472014-03-27 18:53:12 +02001579 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
Eliad Peller37577fe2013-12-05 17:19:39 +02001580 mutex_unlock(&mvm->mutex);
1581}
1582
Eliad Pellerd15a7472014-03-27 18:53:12 +02001583int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
Eliad Pellerb3370d42013-11-25 15:20:16 +02001584{
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001585 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1586 CMD_WAKE_UP_TRANS;
Eliad Pellerd6230972013-11-03 20:09:08 +02001587 int ret;
Eliad Pellerb3370d42013-11-25 15:20:16 +02001588
1589 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001590
Eliad Peller08f0d232015-12-10 15:47:11 +02001591 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1592 return -EINVAL;
1593
Eliad Pellerd15a7472014-03-27 18:53:12 +02001594 mutex_lock(&mvm->d0i3_suspend_mutex);
1595 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1596 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1597 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1598 mutex_unlock(&mvm->d0i3_suspend_mutex);
1599 return 0;
1600 }
1601 mutex_unlock(&mvm->d0i3_suspend_mutex);
1602
Eliad Pellerd6230972013-11-03 20:09:08 +02001603 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1604 if (ret)
Eliad Peller37577fe2013-12-05 17:19:39 +02001605 goto out;
Eliad Pellerd6230972013-11-03 20:09:08 +02001606
1607 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1608 IEEE80211_IFACE_ITER_NORMAL,
1609 iwl_mvm_exit_d0i3_iterator,
1610 mvm);
Eliad Peller37577fe2013-12-05 17:19:39 +02001611out:
1612 schedule_work(&mvm->d0i3_exit_work);
1613 return ret;
Eliad Pellerb3370d42013-11-25 15:20:16 +02001614}
1615
Eliad Peller67359432014-12-09 15:23:54 +02001616int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
Eliad Pellerd15a7472014-03-27 18:53:12 +02001617{
1618 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1619
1620 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1621 return _iwl_mvm_exit_d0i3(mvm);
1622}
1623
Johannes Berg0316d302015-05-22 13:41:07 +02001624#define IWL_MVM_COMMON_OPS \
1625 /* these could be differentiated */ \
Emmanuel Grumbach156f92f2015-11-24 14:55:18 +02001626 .async_cb = iwl_mvm_async_cb, \
Johannes Berg0316d302015-05-22 13:41:07 +02001627 .queue_full = iwl_mvm_stop_sw_queue, \
1628 .queue_not_full = iwl_mvm_wake_sw_queue, \
1629 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1630 .free_skb = iwl_mvm_free_skb, \
1631 .nic_error = iwl_mvm_nic_error, \
1632 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1633 .nic_config = iwl_mvm_nic_config, \
1634 .enter_d0i3 = iwl_mvm_enter_d0i3, \
1635 .exit_d0i3 = iwl_mvm_exit_d0i3, \
1636 /* as we only register one, these MUST be common! */ \
1637 .start = iwl_op_mode_mvm_start, \
1638 .stop = iwl_op_mode_mvm_stop
1639
Johannes Berg8ca151b2013-01-24 14:25:36 +01001640static const struct iwl_op_mode_ops iwl_mvm_ops = {
Johannes Berg0316d302015-05-22 13:41:07 +02001641 IWL_MVM_COMMON_OPS,
1642 .rx = iwl_mvm_rx,
1643};
1644
1645static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1646 struct napi_struct *napi,
1647 struct iwl_rx_cmd_buffer *rxb,
1648 unsigned int queue)
1649{
1650 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Sara Sharon585a6fc2015-12-01 13:48:18 +02001651 struct iwl_rx_packet *pkt = rxb_addr(rxb);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001652 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +02001653
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001654 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
Sara Sharona3383842016-02-28 15:41:47 +02001655 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001656 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1657 RX_QUEUES_NOTIFICATION)))
Sara Sharon94bb4482015-12-16 18:48:28 +02001658 iwl_mvm_rx_queue_notif(mvm, rxb, queue);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001659 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Sara Sharon585a6fc2015-12-01 13:48:18 +02001660 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
Johannes Berg0316d302015-05-22 13:41:07 +02001661}
1662
1663static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1664 IWL_MVM_COMMON_OPS,
1665 .rx = iwl_mvm_rx_mq,
1666 .rx_rss = iwl_mvm_rx_mq_rss,
Johannes Berg8ca151b2013-01-24 14:25:36 +01001667};