blob: 600af8a31200f757712a8569b9cd12f7fdbdb22f [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 Berg65e25482016-04-13 14:24:22 +0200309 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
310 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC),
Johannes Berg8ca151b2013-01-24 14:25:36 +0100311};
312#undef RX_HANDLER
Avraham Stern1230b162015-07-09 17:17:03 +0300313#undef RX_HANDLER_GRP
Johannes Berg8ca151b2013-01-24 14:25:36 +0100314
Sharon Dvir39bdb172015-10-15 18:18:09 +0300315/* Please keep this array *SORTED* by hex value.
316 * Access is done through binary search
317 */
318static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
319 HCMD_NAME(MVM_ALIVE),
320 HCMD_NAME(REPLY_ERROR),
321 HCMD_NAME(ECHO_CMD),
322 HCMD_NAME(INIT_COMPLETE_NOTIF),
323 HCMD_NAME(PHY_CONTEXT_CMD),
324 HCMD_NAME(DBG_CFG),
325 HCMD_NAME(ANTENNA_COUPLING_NOTIFICATION),
326 HCMD_NAME(SCAN_CFG_CMD),
327 HCMD_NAME(SCAN_REQ_UMAC),
328 HCMD_NAME(SCAN_ABORT_UMAC),
329 HCMD_NAME(SCAN_COMPLETE_UMAC),
330 HCMD_NAME(TOF_CMD),
331 HCMD_NAME(TOF_NOTIFICATION),
Sara Sharon3af512d62015-07-22 11:38:40 +0300332 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300333 HCMD_NAME(ADD_STA_KEY),
334 HCMD_NAME(ADD_STA),
335 HCMD_NAME(REMOVE_STA),
336 HCMD_NAME(FW_GET_ITEM_CMD),
337 HCMD_NAME(TX_CMD),
338 HCMD_NAME(SCD_QUEUE_CFG),
339 HCMD_NAME(TXPATH_FLUSH),
340 HCMD_NAME(MGMT_MCAST_KEY),
341 HCMD_NAME(WEP_KEY),
342 HCMD_NAME(SHARED_MEM_CFG),
343 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
344 HCMD_NAME(MAC_CONTEXT_CMD),
345 HCMD_NAME(TIME_EVENT_CMD),
346 HCMD_NAME(TIME_EVENT_NOTIFICATION),
347 HCMD_NAME(BINDING_CONTEXT_CMD),
348 HCMD_NAME(TIME_QUOTA_CMD),
349 HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
350 HCMD_NAME(LQ_CMD),
351 HCMD_NAME(FW_PAGING_BLOCK_CMD),
352 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
353 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
354 HCMD_NAME(HOT_SPOT_CMD),
355 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
356 HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD),
357 HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD),
358 HCMD_NAME(BT_COEX_UPDATE_SW_BOOST),
359 HCMD_NAME(BT_COEX_UPDATE_CORUN_LUT),
360 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
361 HCMD_NAME(BT_COEX_CI),
362 HCMD_NAME(PHY_CONFIGURATION_CMD),
363 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
Sara Sharon176aa602016-08-31 19:03:01 +0300364 HCMD_NAME(PHY_DB_CMD),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300365 HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
366 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
367 HCMD_NAME(SCAN_OFFLOAD_CONFIG_CMD),
368 HCMD_NAME(POWER_TABLE_CMD),
369 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
370 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
371 HCMD_NAME(DC2DC_CONFIG_CMD),
372 HCMD_NAME(NVM_ACCESS_CMD),
373 HCMD_NAME(SET_CALIB_DEFAULT_CMD),
374 HCMD_NAME(BEACON_NOTIFICATION),
375 HCMD_NAME(BEACON_TEMPLATE_CMD),
376 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
377 HCMD_NAME(BT_CONFIG),
378 HCMD_NAME(STATISTICS_CMD),
379 HCMD_NAME(STATISTICS_NOTIFICATION),
380 HCMD_NAME(EOSP_NOTIFICATION),
381 HCMD_NAME(REDUCE_TX_POWER_CMD),
382 HCMD_NAME(CARD_STATE_CMD),
383 HCMD_NAME(CARD_STATE_NOTIFICATION),
384 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
385 HCMD_NAME(TDLS_CONFIG_CMD),
386 HCMD_NAME(MAC_PM_POWER_TABLE),
387 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
388 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
Sara Sharon43413a92015-12-31 11:49:18 +0200389 HCMD_NAME(RSS_CONFIG_CMD),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300390 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
391 HCMD_NAME(REPLY_RX_PHY_CMD),
392 HCMD_NAME(REPLY_RX_MPDU_CMD),
393 HCMD_NAME(BA_NOTIF),
394 HCMD_NAME(MCC_UPDATE_CMD),
395 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
396 HCMD_NAME(MARKER_CMD),
397 HCMD_NAME(BT_COEX_PRIO_TABLE),
398 HCMD_NAME(BT_COEX_PROT_ENV),
399 HCMD_NAME(BT_PROFILE_NOTIFICATION),
400 HCMD_NAME(BCAST_FILTER_CMD),
401 HCMD_NAME(MCAST_FILTER_CMD),
402 HCMD_NAME(REPLY_SF_CFG_CMD),
403 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
404 HCMD_NAME(D3_CONFIG_CMD),
405 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
406 HCMD_NAME(OFFLOADS_QUERY_CMD),
407 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD),
408 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
409 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER),
410 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
411 HCMD_NAME(WOWLAN_PATTERNS),
412 HCMD_NAME(WOWLAN_CONFIGURATION),
413 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
414 HCMD_NAME(WOWLAN_TKIP_PARAM),
415 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
416 HCMD_NAME(WOWLAN_GET_STATUSES),
417 HCMD_NAME(WOWLAN_TX_POWER_PER_DB),
418 HCMD_NAME(SCAN_ITERATION_COMPLETE),
419 HCMD_NAME(D0I3_END_CMD),
420 HCMD_NAME(LTR_CONFIG),
421 HCMD_NAME(REPLY_DEBUG_CMD),
Johannes Berg8ca151b2013-01-24 14:25:36 +0100422};
Sharon Dvir39bdb172015-10-15 18:18:09 +0300423
424/* Please keep this array *SORTED* by hex value.
425 * Access is done through binary search
426 */
Golan Ben-Ami5b086412016-02-09 12:57:16 +0200427static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
428 HCMD_NAME(SHARED_MEM_CFG_CMD),
429};
430
431/* Please keep this array *SORTED* by hex value.
432 * Access is done through binary search
433 */
Aviya Erenfeld03098262016-02-18 14:09:33 +0200434static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
435 HCMD_NAME(LINK_QUALITY_MEASUREMENT_CMD),
436 HCMD_NAME(LINK_QUALITY_MEASUREMENT_COMPLETE_NOTIF),
Andrei Otcheretianskid3a108a2016-02-28 17:12:21 +0200437 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF),
Aviya Erenfeld03098262016-02-18 14:09:33 +0200438};
439
440/* Please keep this array *SORTED* by hex value.
441 * Access is done through binary search
442 */
Sharon Dvir39bdb172015-10-15 18:18:09 +0300443static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
444 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
Chaya Rachel Ivgi5c89e7b2016-01-05 10:34:47 +0200445 HCMD_NAME(CTDP_CONFIG_CMD),
Chaya Rachel Ivgic221daf2015-12-29 09:54:49 +0200446 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
Chaya Rachel Ivgi0a3b7112015-12-16 16:34:55 +0200447 HCMD_NAME(CT_KILL_NOTIFICATION),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300448 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
449};
450
Sara Sharon0db056d2015-12-29 11:07:15 +0200451/* Please keep this array *SORTED* by hex value.
452 * Access is done through binary search
453 */
Sara Sharone0d8fde2015-12-28 22:37:08 +0200454static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
Emmanuel Grumbachddef2f92016-12-19 08:41:16 +0200455 HCMD_NAME(DQA_ENABLE_CMD),
Sara Sharone0d8fde2015-12-28 22:37:08 +0200456 HCMD_NAME(UPDATE_MU_GROUPS_CMD),
Sara Sharon94bb4482015-12-16 18:48:28 +0200457 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
Johannes Berg65e25482016-04-13 14:24:22 +0200458 HCMD_NAME(STA_PM_NOTIF),
Sara Sharonf92659a2016-02-03 15:04:49 +0200459 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
Sara Sharon94bb4482015-12-16 18:48:28 +0200460 HCMD_NAME(RX_QUEUES_NOTIFICATION),
Sara Sharone0d8fde2015-12-28 22:37:08 +0200461};
462
463/* Please keep this array *SORTED* by hex value.
464 * Access is done through binary search
465 */
Sara Sharon0db056d2015-12-29 11:07:15 +0200466static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
467 HCMD_NAME(STORED_BEACON_NTF),
468};
469
Sara Sharon1f370652016-08-31 18:13:57 +0300470/* Please keep this array *SORTED* by hex value.
471 * Access is done through binary search
472 */
473static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
474 HCMD_NAME(NVM_ACCESS_COMPLETE),
475};
476
Sharon Dvir39bdb172015-10-15 18:18:09 +0300477static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
478 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
479 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
Golan Ben-Ami5b086412016-02-09 12:57:16 +0200480 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
Aviya Erenfeld03098262016-02-18 14:09:33 +0200481 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300482 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
Sara Sharone0d8fde2015-12-28 22:37:08 +0200483 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
Sara Sharon0db056d2015-12-29 11:07:15 +0200484 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
Sara Sharon1f370652016-08-31 18:13:57 +0300485 [REGULATORY_AND_NVM_GROUP] =
486 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
Sharon Dvir39bdb172015-10-15 18:18:09 +0300487};
488
Johannes Berg8ca151b2013-01-24 14:25:36 +0100489/* this forward declaration can avoid to export the function */
490static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
Eliad Peller37577fe2013-12-05 17:19:39 +0200491static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100492
Ido Yariv0c0e2c72014-01-16 21:12:02 -0500493static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
494{
495 const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
496
497 if (!pwr_tx_backoff)
498 return 0;
499
500 while (pwr_tx_backoff->pwr) {
501 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
502 return pwr_tx_backoff->backoff;
503
504 pwr_tx_backoff++;
505 }
506
507 return 0;
508}
509
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +0300510static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
511
Andrei Otcheretianskid3a108a2016-02-28 17:12:21 +0200512static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
513{
514 struct iwl_mvm *mvm =
515 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
516 struct ieee80211_vif *tx_blocked_vif;
517 struct iwl_mvm_vif *mvmvif;
518
519 mutex_lock(&mvm->mutex);
520
521 tx_blocked_vif =
522 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
523 lockdep_is_held(&mvm->mutex));
524
525 if (!tx_blocked_vif)
526 goto unlock;
527
528 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
529 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
530 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
531unlock:
532 mutex_unlock(&mvm->mutex);
533}
534
Johannes Berg8ca151b2013-01-24 14:25:36 +0100535static struct iwl_op_mode *
536iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
537 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
538{
539 struct ieee80211_hw *hw;
540 struct iwl_op_mode *op_mode;
541 struct iwl_mvm *mvm;
542 struct iwl_trans_config trans_cfg = {};
543 static const u8 no_reclaim_cmds[] = {
544 TX_CMD,
545 };
546 int err, scan_size;
Ido Yariv0c0e2c72014-01-16 21:12:02 -0500547 u32 min_backoff;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100548
Emmanuel Grumbachc4d83272014-01-14 08:45:26 +0200549 /*
550 * We use IWL_MVM_STATION_COUNT to check the validity of the station
551 * index all over the driver - check that its value corresponds to the
552 * array size.
553 */
554 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
555
Johannes Berg8ca151b2013-01-24 14:25:36 +0100556 /********************************
557 * 1. Allocating and configuring HW data
558 ********************************/
559 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
560 sizeof(struct iwl_mvm),
561 &iwl_mvm_hw_ops);
562 if (!hw)
563 return NULL;
564
Oren Givon745160e2014-06-16 10:54:52 +0300565 if (cfg->max_rx_agg_size)
566 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
567
Gregory Greenman77d96732014-09-02 16:04:58 +0200568 if (cfg->max_tx_agg_size)
569 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
570
Johannes Berg8ca151b2013-01-24 14:25:36 +0100571 op_mode = hw->priv;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100572
573 mvm = IWL_OP_MODE_GET_MVM(op_mode);
574 mvm->dev = trans->dev;
575 mvm->trans = trans;
576 mvm->cfg = cfg;
577 mvm->fw = fw;
578 mvm->hw = hw;
579
Johannes Berg0316d302015-05-22 13:41:07 +0200580 if (iwl_mvm_has_new_rx_api(mvm)) {
581 op_mode->ops = &iwl_mvm_ops_mq;
Sara Sharon25c2b222016-02-07 13:09:59 +0200582 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc);
Johannes Berg0316d302015-05-22 13:41:07 +0200583 } else {
584 op_mode->ops = &iwl_mvm_ops;
Sara Sharon25c2b222016-02-07 13:09:59 +0200585 trans->rx_mpdu_cmd_hdr_size =
586 sizeof(struct iwl_rx_mpdu_res_start);
Johannes Berg0316d302015-05-22 13:41:07 +0200587
588 if (WARN_ON(trans->num_rx_queues > 1))
589 goto out_free;
590 }
591
Eran Harary291aa7c2013-07-03 11:00:06 +0300592 mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
593
Liad Kaufmancf961e12015-08-13 19:16:08 +0300594 if (!iwl_mvm_is_dqa_supported(mvm)) {
Liad Kaufmancf961e12015-08-13 19:16:08 +0300595 mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
Liad Kaufman28d07932015-09-01 16:36:25 +0300596
597 if (mvm->cfg->base_params->num_of_queues == 16) {
598 mvm->aux_queue = 11;
599 mvm->first_agg_queue = 12;
600 } else {
601 mvm->aux_queue = 15;
602 mvm->first_agg_queue = 16;
603 }
Liad Kaufmancf961e12015-08-13 19:16:08 +0300604 } else {
Liad Kaufman28d07932015-09-01 16:36:25 +0300605 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
Sara Sharon49f71712017-01-09 12:07:16 +0200606 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
607 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
Liad Kaufmancf961e12015-08-13 19:16:08 +0300608 mvm->first_agg_queue = IWL_MVM_DQA_MIN_DATA_QUEUE;
609 mvm->last_agg_queue = IWL_MVM_DQA_MAX_DATA_QUEUE;
610 }
Lilach Edelstein1f3b0ff2013-10-06 13:03:32 +0200611 mvm->sf_state = SF_UNINIT;
Sara Sharon1f370652016-08-31 18:13:57 +0300612 if (iwl_mvm_has_new_tx_api(mvm))
613 mvm->cur_ucode = IWL_UCODE_REGULAR;
614 else
615 mvm->cur_ucode = IWL_UCODE_INIT;
Andrei Otcheretianskic89e3332016-01-26 18:12:28 +0200616 mvm->drop_bcn_ap_mode = true;
Eytan Lifshitz19e737c2013-09-09 13:30:15 +0200617
Johannes Berg8ca151b2013-01-24 14:25:36 +0100618 mutex_init(&mvm->mutex);
Eliad Pellerd15a7472014-03-27 18:53:12 +0200619 mutex_init(&mvm->d0i3_suspend_mutex);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100620 spin_lock_init(&mvm->async_handlers_lock);
621 INIT_LIST_HEAD(&mvm->time_event_list);
Ariej Marjiehb1128892014-07-16 21:11:12 +0300622 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100623 INIT_LIST_HEAD(&mvm->async_handlers_list);
624 spin_lock_init(&mvm->time_event_lock);
Liad Kaufman4ecafae2015-07-14 13:36:18 +0300625 spin_lock_init(&mvm->queue_info_lock);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100626
627 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
628 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
629 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
Eliad Peller37577fe2013-12-05 17:19:39 +0200630 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +0200631 INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
Arik Nemtsov1d3c3f62014-10-23 18:03:10 +0300632 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
Luca Coelho69e04642016-05-03 12:18:33 +0300633 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
Liad Kaufman24afba72015-07-28 18:56:08 +0300634 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100635
Arik Nemtsovb2492502014-03-13 12:21:50 +0200636 spin_lock_init(&mvm->d0i3_tx_lock);
Eliad Peller576eeee2014-07-01 18:38:38 +0300637 spin_lock_init(&mvm->refs_lock);
Arik Nemtsovb2492502014-03-13 12:21:50 +0200638 skb_queue_head_init(&mvm->d0i3_tx);
639 init_waitqueue_head(&mvm->d0i3_exit_waitq);
Sara Sharon3a732c62016-10-09 17:34:24 +0300640 init_waitqueue_head(&mvm->rx_sync_waitq);
Arik Nemtsovb2492502014-03-13 12:21:50 +0200641
Sara Sharon0636b932016-02-18 14:21:12 +0200642 atomic_set(&mvm->queue_sync_counter, 0);
643
Johannes Berg8ca151b2013-01-24 14:25:36 +0100644 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
645
Andrei Otcheretianskid3a108a2016-02-28 17:12:21 +0200646 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
647
Johannes Berg8ca151b2013-01-24 14:25:36 +0100648 /*
649 * Populate the state variables that the transport layer needs
650 * to know about.
651 */
652 trans_cfg.op_mode = op_mode;
653 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
654 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
Emmanuel Grumbach6c4fbcb2015-11-10 11:57:41 +0200655 switch (iwlwifi_mod_params.amsdu_size) {
Emmanuel Grumbach4bdd4df2016-04-07 16:44:42 +0300656 case IWL_AMSDU_DEF:
Emmanuel Grumbach6c4fbcb2015-11-10 11:57:41 +0200657 case IWL_AMSDU_4K:
658 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
659 break;
660 case IWL_AMSDU_8K:
661 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
662 break;
663 case IWL_AMSDU_12K:
664 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
665 break;
666 default:
667 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
668 iwlwifi_mod_params.amsdu_size);
669 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
670 }
Emmanuel Grumbach4bdd4df2016-04-07 16:44:42 +0300671
672 /* the hardware splits the A-MSDU */
673 if (mvm->cfg->mq_rx_supported)
674 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100675
Luca Coelho4b87e5a2016-09-12 16:03:30 +0300676 trans->wide_cmd_header = true;
677 trans_cfg.bc_table_dword = true;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100678
Sharon Dvir39bdb172015-10-15 18:18:09 +0300679 trans_cfg.command_groups = iwl_mvm_groups;
680 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100681
Liad Kaufman097129c2015-08-09 18:28:43 +0300682 if (iwl_mvm_is_dqa_supported(mvm))
683 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
684 else
685 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
Johannes Bergb2d81db2014-08-01 20:48:25 +0200686 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
Emmanuel Grumbach3a736bc2014-09-10 11:16:41 +0300687 trans_cfg.scd_set_active = true;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100688
Johannes Berg21cb3222016-06-21 13:11:48 +0200689 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
690 driver_data[2]);
691
Liad Kaufmanb4821762014-10-19 16:58:15 +0200692 trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
Emmanuel Grumbach41837ca92015-10-21 09:00:07 +0300693 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
Liad Kaufmanb4821762014-10-19 16:58:15 +0200694
Emmanuel Grumbach4cf677f2015-01-12 14:38:29 +0200695 /* Set a short watchdog for the command queue */
696 trans_cfg.cmd_q_wdg_timeout =
Emmanuel Grumbach5d42e7b2015-03-19 20:04:51 +0200697 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
Emmanuel Grumbach4cf677f2015-01-12 14:38:29 +0200698
Johannes Berg8ca151b2013-01-24 14:25:36 +0100699 snprintf(mvm->hw->wiphy->fw_version,
700 sizeof(mvm->hw->wiphy->fw_version),
701 "%s", fw->fw_version);
702
703 /* Configure transport layer */
704 iwl_trans_configure(mvm->trans, &trans_cfg);
705
706 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
Liad Kaufman09e350f2014-11-17 11:41:07 +0200707 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
708 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
709 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
710 sizeof(trans->dbg_conf_tlv));
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +0200711 trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100712
713 /* set up notification wait support */
714 iwl_notification_wait_init(&mvm->notif_wait);
715
716 /* Init phy db */
717 mvm->phy_db = iwl_phy_db_init(trans);
718 if (!mvm->phy_db) {
719 IWL_ERR(mvm, "Cannot init phy_db\n");
720 goto out_free;
721 }
722
723 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
724 mvm->cfg->name, mvm->trans->hw_rev);
725
Eran Harary4fb06282015-04-19 10:05:18 +0300726 if (iwlwifi_mod_params.nvm_file)
Eran Hararye02a9d62014-05-07 12:27:10 +0300727 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
Eran Harary4fb06282015-04-19 10:05:18 +0300728 else
729 IWL_DEBUG_EEPROM(mvm->trans->dev,
730 "working without external nvm file\n");
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +0300731
Sara Sharon56f29292016-08-31 12:37:55 +0300732 err = iwl_trans_start_hw(mvm->trans);
733 if (err)
Eran Harary14b485f2014-04-23 10:46:09 +0300734 goto out_free;
735
Sara Sharon56f29292016-08-31 12:37:55 +0300736 mutex_lock(&mvm->mutex);
737 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE);
Sara Sharon1f370652016-08-31 18:13:57 +0300738 if (iwl_mvm_has_new_tx_api(mvm))
739 err = iwl_run_unified_mvm_ucode(mvm, true);
740 else
741 err = iwl_run_init_mvm_ucode(mvm, true);
Sara Sharon56f29292016-08-31 12:37:55 +0300742 if (!err || !iwlmvm_mod_params.init_dbg)
743 iwl_mvm_stop_device(mvm);
744 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE);
745 mutex_unlock(&mvm->mutex);
746 /* returns 0 if successful, 1 if success but in rfkill */
747 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
748 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
749 goto out_free;
Eytan Lifshitz81a67e32013-09-11 12:39:18 +0200750 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100751
David Spinadeld2496222014-05-20 12:46:37 +0300752 scan_size = iwl_mvm_scan_size(mvm);
David Spinadelfb98be52014-05-04 12:51:10 +0300753
Johannes Berg8ca151b2013-01-24 14:25:36 +0100754 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
755 if (!mvm->scan_cmd)
756 goto out_free;
757
Haim Dreyfuss5a4b2af2015-01-13 11:54:51 +0200758 /* Set EBS as successful as long as not stated otherwise by the FW. */
759 mvm->last_ebs_successful = true;
760
Johannes Berg8ca151b2013-01-24 14:25:36 +0100761 err = iwl_mvm_mac_setup_register(mvm);
762 if (err)
763 goto out_free;
Sara Sharon1f370652016-08-31 18:13:57 +0300764 mvm->hw_registered = true;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100765
Chaya Rachel Ivgi04ddc2a2016-03-03 13:31:39 +0200766 min_backoff = calc_min_backoff(trans, cfg);
767 iwl_mvm_thermal_initialize(mvm, min_backoff);
768
Johannes Berg8ca151b2013-01-24 14:25:36 +0100769 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
770 if (err)
771 goto out_unregister;
772
Matti Gottlieb3848ab62013-07-30 15:29:37 +0300773 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
774
Luca Coelho33c85ea2016-02-22 15:44:13 +0200775 /* The transport always starts with a taken reference, we can
776 * release it now if d0i3 is supported */
777 if (iwl_mvm_is_d0i3_supported(mvm))
778 iwl_trans_unref(mvm->trans);
Eliad Peller7498cf42014-01-16 17:10:44 +0200779
Gregory Greenmance792912015-06-02 18:06:16 +0300780 iwl_mvm_tof_init(mvm);
781
Johannes Berg8ca151b2013-01-24 14:25:36 +0100782 return op_mode;
783
784 out_unregister:
785 ieee80211_unregister_hw(mvm->hw);
Sara Sharon1f370652016-08-31 18:13:57 +0300786 mvm->hw_registered = false;
Eliad Peller91b0d112014-01-05 12:41:12 +0200787 iwl_mvm_leds_exit(mvm);
Chaya Rachel Ivgic221daf2015-12-29 09:54:49 +0200788 iwl_mvm_thermal_exit(mvm);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100789 out_free:
Andrei Otcheretianskidbf73d42015-09-30 12:26:23 +0200790 flush_delayed_work(&mvm->fw_dump_wk);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100791 iwl_phy_db_free(mvm->phy_db);
792 kfree(mvm->scan_cmd);
Sara Sharon56f29292016-08-31 12:37:55 +0300793 iwl_trans_op_mode_leave(trans);
794
Johannes Berg8ca151b2013-01-24 14:25:36 +0100795 ieee80211_free_hw(mvm->hw);
796 return NULL;
797}
798
799static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
800{
801 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
802 int i;
803
Luca Coelhoe27deb42016-03-01 10:30:48 +0200804 /* If d0i3 is supported, we have released the reference that
805 * the transport started with, so we should take it back now
806 * that we are leaving.
807 */
808 if (iwl_mvm_is_d0i3_supported(mvm))
809 iwl_trans_ref(mvm->trans);
810
Johannes Berg8ca151b2013-01-24 14:25:36 +0100811 iwl_mvm_leds_exit(mvm);
812
Chaya Rachel Ivgic221daf2015-12-29 09:54:49 +0200813 iwl_mvm_thermal_exit(mvm);
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +0300814
Johannes Berg8ca151b2013-01-24 14:25:36 +0100815 ieee80211_unregister_hw(mvm->hw);
816
817 kfree(mvm->scan_cmd);
Eliad Pellere59647e2013-11-28 14:08:50 +0200818 kfree(mvm->mcast_filter_cmd);
819 mvm->mcast_filter_cmd = NULL;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100820
Johannes Bergafc66bb2013-05-03 11:44:16 +0200821#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
822 kfree(mvm->d3_resume_sram);
823#endif
824
Arik Nemtsova4082842013-11-24 19:10:46 +0200825 iwl_trans_op_mode_leave(mvm->trans);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100826
827 iwl_phy_db_free(mvm->phy_db);
828 mvm->phy_db = NULL;
829
Johannes Berg8ca151b2013-01-24 14:25:36 +0100830 iwl_free_nvm_data(mvm->nvm_data);
Eran Hararyae2b21b2014-01-09 08:08:24 +0200831 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
Johannes Berg8ca151b2013-01-24 14:25:36 +0100832 kfree(mvm->nvm_sections[i].data);
833
Gregory Greenmance792912015-06-02 18:06:16 +0300834 iwl_mvm_tof_clean(mvm);
835
Emmanuel Grumbacha2a57a32016-03-15 15:36:36 +0200836 mutex_destroy(&mvm->mutex);
837 mutex_destroy(&mvm->d0i3_suspend_mutex);
838
Johannes Berg8ca151b2013-01-24 14:25:36 +0100839 ieee80211_free_hw(mvm->hw);
840}
841
842struct iwl_async_handler_entry {
843 struct list_head list;
844 struct iwl_rx_cmd_buffer rxb;
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200845 enum iwl_rx_handler_context context;
Johannes Berg04168412015-06-23 21:22:09 +0200846 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100847};
848
849void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
850{
851 struct iwl_async_handler_entry *entry, *tmp;
852
853 spin_lock_bh(&mvm->async_handlers_lock);
854 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
855 iwl_free_rxb(&entry->rxb);
856 list_del(&entry->list);
857 kfree(entry);
858 }
859 spin_unlock_bh(&mvm->async_handlers_lock);
860}
861
862static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
863{
864 struct iwl_mvm *mvm =
865 container_of(wk, struct iwl_mvm, async_handlers_wk);
866 struct iwl_async_handler_entry *entry, *tmp;
Johannes Berg80982032016-08-31 22:16:11 +0200867 LIST_HEAD(local_list);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100868
869 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
Johannes Berg8ca151b2013-01-24 14:25:36 +0100870
871 /*
872 * Sync with Rx path with a lock. Remove all the entries from this list,
873 * add them to a local one (lock free), and then handle them.
874 */
875 spin_lock_bh(&mvm->async_handlers_lock);
876 list_splice_init(&mvm->async_handlers_list, &local_list);
877 spin_unlock_bh(&mvm->async_handlers_lock);
878
879 list_for_each_entry_safe(entry, tmp, &local_list, list) {
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200880 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
881 mutex_lock(&mvm->mutex);
Johannes Berg04168412015-06-23 21:22:09 +0200882 entry->fn(mvm, &entry->rxb);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100883 iwl_free_rxb(&entry->rxb);
884 list_del(&entry->list);
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200885 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
886 mutex_unlock(&mvm->mutex);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100887 kfree(entry);
888 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100889}
890
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200891static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
892 struct iwl_rx_packet *pkt)
893{
894 struct iwl_fw_dbg_trigger_tlv *trig;
895 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200896 int i;
897
898 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
899 return;
900
901 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
902 cmds_trig = (void *)trig->data;
903
904 if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
905 return;
906
907 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
908 /* don't collect on CMD 0 */
909 if (!cmds_trig->cmds[i].cmd_id)
910 break;
911
Sara Sharon0ab66e62015-07-13 14:23:59 +0300912 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
913 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200914 continue;
915
Johannes Berg5d4f9292015-03-31 09:12:54 +0200916 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
Sara Sharon0ab66e62015-07-13 14:23:59 +0300917 "CMD 0x%02x.%02x received",
918 pkt->hdr.group_id, pkt->hdr.cmd);
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200919 break;
920 }
921}
922
Johannes Berg0316d302015-05-22 13:41:07 +0200923static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
924 struct iwl_rx_cmd_buffer *rxb,
925 struct iwl_rx_packet *pkt)
Johannes Berg8ca151b2013-01-24 14:25:36 +0100926{
Johannes Berg0316d302015-05-22 13:41:07 +0200927 int i;
Johannes Berg1738d602015-05-22 12:09:44 +0200928
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200929 iwl_mvm_rx_check_trigger(mvm, pkt);
930
Johannes Berg8ca151b2013-01-24 14:25:36 +0100931 /*
932 * Do the notification wait before RX handlers so
933 * even if the RX handler consumes the RXB we have
934 * access to it in the notification wait entry.
935 */
936 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
937
938 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
939 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200940 struct iwl_async_handler_entry *entry;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100941
Avraham Stern1230b162015-07-09 17:17:03 +0300942 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200943 continue;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100944
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200945 if (rx_h->context == RX_HANDLER_SYNC) {
Johannes Berg04168412015-06-23 21:22:09 +0200946 rx_h->fn(mvm, rxb);
Johannes Bergf7e64692015-06-23 21:58:17 +0200947 return;
Johannes Berg04168412015-06-23 21:22:09 +0200948 }
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200949
950 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
951 /* we can't do much... */
952 if (!entry)
Johannes Bergf7e64692015-06-23 21:58:17 +0200953 return;
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200954
955 entry->rxb._page = rxb_steal_page(rxb);
956 entry->rxb._offset = rxb->_offset;
957 entry->rxb._rx_page_order = rxb->_rx_page_order;
958 entry->fn = rx_h->fn;
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200959 entry->context = rx_h->context;
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200960 spin_lock(&mvm->async_handlers_lock);
961 list_add_tail(&entry->list, &mvm->async_handlers_list);
962 spin_unlock(&mvm->async_handlers_lock);
963 schedule_work(&mvm->async_handlers_wk);
964 break;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100965 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100966}
967
Johannes Berg0316d302015-05-22 13:41:07 +0200968static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
969 struct napi_struct *napi,
970 struct iwl_rx_cmd_buffer *rxb)
971{
972 struct iwl_rx_packet *pkt = rxb_addr(rxb);
973 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200974 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +0200975
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200976 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Johannes Berg0316d302015-05-22 13:41:07 +0200977 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200978 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
Johannes Berg0316d302015-05-22 13:41:07 +0200979 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
980 else
981 iwl_mvm_rx_common(mvm, rxb, pkt);
982}
983
984static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
985 struct napi_struct *napi,
986 struct iwl_rx_cmd_buffer *rxb)
987{
988 struct iwl_rx_packet *pkt = rxb_addr(rxb);
989 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200990 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +0200991
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200992 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Johannes Berg780e87c2015-09-03 14:56:10 +0200993 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200994 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
995 RX_QUEUES_NOTIFICATION)))
Sara Sharon94bb4482015-12-16 18:48:28 +0200996 iwl_mvm_rx_queue_notif(mvm, rxb, 0);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200997 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
Johannes Berg58035432016-04-27 13:33:26 +0200998 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
Johannes Berg0316d302015-05-22 13:41:07 +0200999 else
1000 iwl_mvm_rx_common(mvm, rxb, pkt);
1001}
1002
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001003void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001004{
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001005 int q;
Johannes Berg8ca151b2013-01-24 14:25:36 +01001006
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001007 if (WARN_ON_ONCE(!mq))
Johannes Berg8ca151b2013-01-24 14:25:36 +01001008 return;
1009
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001010 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1011 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
1012 IWL_DEBUG_TX_QUEUES(mvm,
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001013 "mac80211 %d already stopped\n", q);
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001014 continue;
1015 }
1016
1017 ieee80211_stop_queue(mvm->hw, q);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001018 }
Johannes Berg8ca151b2013-01-24 14:25:36 +01001019}
1020
Emmanuel Grumbach156f92f2015-11-24 14:55:18 +02001021static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1022 const struct iwl_device_cmd *cmd)
1023{
1024 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1025
1026 /*
1027 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1028 * commands that need to block the Tx queues.
1029 */
1030 iwl_trans_block_txq_ptrs(mvm->trans, false);
1031}
1032
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001033static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001034{
1035 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001036 unsigned long mq;
Johannes Berg8ca151b2013-01-24 14:25:36 +01001037
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001038 spin_lock_bh(&mvm->queue_info_lock);
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001039 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211;
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001040 spin_unlock_bh(&mvm->queue_info_lock);
1041
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001042 iwl_mvm_stop_mac_queues(mvm, mq);
1043}
1044
1045void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
1046{
1047 int q;
1048
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001049 if (WARN_ON_ONCE(!mq))
Johannes Berg8ca151b2013-01-24 14:25:36 +01001050 return;
1051
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001052 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1053 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
1054 IWL_DEBUG_TX_QUEUES(mvm,
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001055 "mac80211 %d still stopped\n", q);
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001056 continue;
1057 }
1058
1059 ieee80211_wake_queue(mvm->hw, q);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001060 }
Johannes Berg8ca151b2013-01-24 14:25:36 +01001061}
1062
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001063static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1064{
1065 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1066 unsigned long mq;
1067
1068 spin_lock_bh(&mvm->queue_info_lock);
1069 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211;
1070 spin_unlock_bh(&mvm->queue_info_lock);
1071
1072 iwl_mvm_start_mac_queues(mvm, mq);
1073}
1074
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +03001075void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1076{
1077 if (state)
1078 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1079 else
1080 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1081
1082 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
1083}
1084
Johannes Berg14cfca72014-02-25 20:50:53 +01001085static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001086{
1087 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Emmanuel Grumbach31b8b342014-11-02 15:48:09 +02001088 bool calibrating = ACCESS_ONCE(mvm->calibrating);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001089
1090 if (state)
1091 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1092 else
1093 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1094
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +03001095 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
Johannes Berg14cfca72014-02-25 20:50:53 +01001096
Emmanuel Grumbach31b8b342014-11-02 15:48:09 +02001097 /* iwl_run_init_mvm_ucode is waiting for results, abort it */
1098 if (calibrating)
1099 iwl_abort_notification_waits(&mvm->notif_wait);
1100
1101 /*
1102 * Stop the device if we run OPERATIONAL firmware or if we are in the
1103 * middle of the calibrations.
1104 */
1105 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001106}
1107
1108static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1109{
1110 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1111 struct ieee80211_tx_info *info;
1112
1113 info = IEEE80211_SKB_CB(skb);
1114 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1115 ieee80211_free_txskb(mvm->hw, skb);
1116}
1117
Johannes Bergac1ed412013-07-04 15:25:25 +02001118struct iwl_mvm_reprobe {
1119 struct device *dev;
1120 struct work_struct work;
1121};
1122
1123static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1124{
1125 struct iwl_mvm_reprobe *reprobe;
1126
1127 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1128 if (device_reprobe(reprobe->dev))
1129 dev_err(reprobe->dev, "reprobe failed!\n");
1130 kfree(reprobe);
1131 module_put(THIS_MODULE);
1132}
1133
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001134static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
1135{
1136 struct iwl_mvm *mvm =
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +02001137 container_of(work, struct iwl_mvm, fw_dump_wk.work);
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001138
Liad Kaufmanfb2380a2015-01-01 17:42:46 +02001139 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
1140 return;
1141
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001142 mutex_lock(&mvm->mutex);
Emmanuel Grumbach145d90b2015-04-13 12:05:48 +03001143
1144 /* stop recording */
1145 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
1146 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
1147 } else {
1148 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
1149 /* wait before we collect the data till the DBGC stop */
1150 udelay(100);
1151 }
1152
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001153 iwl_mvm_fw_error_dump(mvm);
Emmanuel Grumbache66e0b72014-12-29 09:42:37 +02001154
1155 /* start recording again if the firmware is not crashed */
1156 WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
Emmanuel Grumbach9beda942015-03-02 14:39:03 +02001157 mvm->fw->dbg_dest_tlv &&
1158 iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
Emmanuel Grumbache66e0b72014-12-29 09:42:37 +02001159
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001160 mutex_unlock(&mvm->mutex);
Liad Kaufmanfb2380a2015-01-01 17:42:46 +02001161
1162 iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001163}
1164
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001165void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001166{
Johannes Berg8ca151b2013-01-24 14:25:36 +01001167 iwl_abort_notification_waits(&mvm->notif_wait);
1168
1169 /*
David Spinadel992f81f2014-01-09 14:22:55 +02001170 * This is a bit racy, but worst case we tell mac80211 about
1171 * a stopped/aborted scan when that was already done which
1172 * is not a problem. It is necessary to abort any os scan
1173 * here because mac80211 requires having the scan cleared
1174 * before restarting.
1175 * We'll reset the scan_status to NONE in restart cleanup in
1176 * the next start() call from mac80211. If restart isn't called
1177 * (no fw restart) scan status will stay busy.
1178 */
David Spinadel4ffb3652015-03-10 10:06:02 +02001179 iwl_mvm_report_scan_aborted(mvm);
David Spinadel992f81f2014-01-09 14:22:55 +02001180
1181 /*
Johannes Berg8ca151b2013-01-24 14:25:36 +01001182 * If we're restarting already, don't cycle restarts.
1183 * If INIT fw asserted, it will likely fail again.
1184 * If WoWLAN fw asserted, don't restart either, mac80211
1185 * can't recover this since we're already half suspended.
1186 */
Luciano Coelho60f10712015-01-28 09:00:27 +02001187 if (!mvm->restart_fw && fw_error) {
Oren Givon36fb9012015-07-15 15:47:28 +03001188 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1189 NULL);
Luciano Coelho60f10712015-01-28 09:00:27 +02001190 } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1191 &mvm->status)) {
Johannes Bergac1ed412013-07-04 15:25:25 +02001192 struct iwl_mvm_reprobe *reprobe;
1193
1194 IWL_ERR(mvm,
1195 "Firmware error during reconfiguration - reprobe!\n");
1196
1197 /*
1198 * get a module reference to avoid doing this while unloading
1199 * anyway and to avoid scheduling a work with code that's
1200 * being removed.
1201 */
1202 if (!try_module_get(THIS_MODULE)) {
1203 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1204 return;
1205 }
1206
1207 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1208 if (!reprobe) {
1209 module_put(THIS_MODULE);
1210 return;
1211 }
1212 reprobe->dev = mvm->trans->dev;
1213 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1214 schedule_work(&reprobe->work);
Sara Sharon1f370652016-08-31 18:13:57 +03001215 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR &&
1216 mvm->hw_registered) {
Eliad Peller7498cf42014-01-16 17:10:44 +02001217 /* don't let the transport/FW power down */
1218 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1219
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001220 if (fw_error && mvm->restart_fw > 0)
Eran Harary291aa7c2013-07-03 11:00:06 +03001221 mvm->restart_fw--;
Johannes Berg8ca151b2013-01-24 14:25:36 +01001222 ieee80211_restart_hw(mvm->hw);
1223 }
1224}
1225
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001226static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1227{
1228 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1229
1230 iwl_mvm_dump_nic_error_log(mvm);
Emmanuel Grumbach1bd3cbc2014-03-18 21:15:06 +02001231
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001232 iwl_mvm_nic_restart(mvm, true);
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001233}
1234
Johannes Berg8ca151b2013-01-24 14:25:36 +01001235static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1236{
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001237 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1238
Johannes Berg8ca151b2013-01-24 14:25:36 +01001239 WARN_ON(1);
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001240 iwl_mvm_nic_restart(mvm, true);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001241}
1242
Eliad Peller37577fe2013-12-05 17:19:39 +02001243struct iwl_d0i3_iter_data {
1244 struct iwl_mvm *mvm;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001245 struct ieee80211_vif *connected_vif;
Eliad Peller37577fe2013-12-05 17:19:39 +02001246 u8 ap_sta_id;
1247 u8 vif_count;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001248 u8 offloading_tid;
1249 bool disable_offloading;
Eliad Peller37577fe2013-12-05 17:19:39 +02001250};
1251
Arik Nemtsovb2492502014-03-13 12:21:50 +02001252static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1253 struct ieee80211_vif *vif,
1254 struct iwl_d0i3_iter_data *iter_data)
1255{
1256 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001257 struct iwl_mvm_sta *mvmsta;
1258 u32 available_tids = 0;
1259 u8 tid;
1260
1261 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1262 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1263 return false;
1264
Sara Sharon13303c02016-04-10 15:51:54 +03001265 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id);
1266 if (!mvmsta)
Arik Nemtsovb2492502014-03-13 12:21:50 +02001267 return false;
1268
Arik Nemtsovb2492502014-03-13 12:21:50 +02001269 spin_lock_bh(&mvmsta->lock);
1270 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1271 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1272
1273 /*
1274 * in case of pending tx packets, don't use this tid
1275 * for offloading in order to prevent reuse of the same
1276 * qos seq counters.
1277 */
1278 if (iwl_mvm_tid_queued(tid_data))
1279 continue;
1280
1281 if (tid_data->state != IWL_AGG_OFF)
1282 continue;
1283
1284 available_tids |= BIT(tid);
1285 }
1286 spin_unlock_bh(&mvmsta->lock);
1287
1288 /*
1289 * disallow protocol offloading if we have no available tid
1290 * (with no pending frames and no active aggregation,
1291 * as we don't handle "holes" properly - the scheduler needs the
1292 * frame's seq number and TFD index to match)
1293 */
1294 if (!available_tids)
1295 return true;
1296
1297 /* for simplicity, just use the first available tid */
1298 iter_data->offloading_tid = ffs(available_tids) - 1;
1299 return false;
1300}
1301
Eliad Pellerd6230972013-11-03 20:09:08 +02001302static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1303 struct ieee80211_vif *vif)
1304{
Eliad Peller37577fe2013-12-05 17:19:39 +02001305 struct iwl_d0i3_iter_data *data = _data;
1306 struct iwl_mvm *mvm = data->mvm;
1307 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Eliad Pellerd6230972013-11-03 20:09:08 +02001308 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1309
1310 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1311 if (vif->type != NL80211_IFTYPE_STATION ||
1312 !vif->bss_conf.assoc)
1313 return;
1314
Arik Nemtsovb2492502014-03-13 12:21:50 +02001315 /*
1316 * in case of pending tx packets or active aggregations,
1317 * avoid offloading features in order to prevent reuse of
1318 * the same qos seq counters.
1319 */
1320 if (iwl_mvm_disallow_offloading(mvm, vif, data))
1321 data->disable_offloading = true;
1322
Eliad Pellerd6230972013-11-03 20:09:08 +02001323 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
Sara Sharonc97dab42015-11-19 11:53:49 +02001324 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1325 false, flags);
Eliad Pellerd6230972013-11-03 20:09:08 +02001326
1327 /*
1328 * on init/association, mvm already configures POWER_TABLE_CMD
1329 * and REPLY_MCAST_FILTER_CMD, so currently don't
1330 * reconfigure them (we might want to use different
1331 * params later on, though).
1332 */
Eliad Peller37577fe2013-12-05 17:19:39 +02001333 data->ap_sta_id = mvmvif->ap_sta_id;
1334 data->vif_count++;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001335
1336 /*
1337 * no new commands can be sent at this stage, so it's safe
1338 * to save the vif pointer during d0i3 entrance.
1339 */
1340 data->connected_vif = vif;
Eliad Pellerd6230972013-11-03 20:09:08 +02001341}
1342
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001343static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001344 struct iwl_wowlan_config_cmd *cmd,
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001345 struct iwl_d0i3_iter_data *iter_data)
1346{
1347 struct ieee80211_sta *ap_sta;
1348 struct iwl_mvm_sta *mvm_ap_sta;
1349
1350 if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1351 return;
1352
1353 rcu_read_lock();
1354
1355 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1356 if (IS_ERR_OR_NULL(ap_sta))
1357 goto out;
1358
1359 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001360 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001361 cmd->offloading_tid = iter_data->offloading_tid;
Sara Sharon70b4c532015-11-19 13:12:15 +02001362 cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
Sara Sharon0db056d2015-12-29 11:07:15 +02001363 ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON;
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001364 /*
1365 * The d0i3 uCode takes care of the nonqos counters,
1366 * so configure only the qos seq ones.
1367 */
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001368 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001369out:
1370 rcu_read_unlock();
1371}
Eliad Peller67359432014-12-09 15:23:54 +02001372
1373int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
Eliad Pellerb3370d42013-11-25 15:20:16 +02001374{
1375 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001376 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001377 int ret;
Eliad Peller37577fe2013-12-05 17:19:39 +02001378 struct iwl_d0i3_iter_data d0i3_iter_data = {
1379 .mvm = mvm,
1380 };
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001381 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1382 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1383 IWL_WOWLAN_WAKEUP_BEACON_MISS |
Sara Sharon0db056d2015-12-29 11:07:15 +02001384 IWL_WOWLAN_WAKEUP_LINK_CHANGE),
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001385 };
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001386 struct iwl_d3_manager_config d3_cfg_cmd = {
1387 .min_sleep_time = cpu_to_le32(1000),
Eliad Pellerd9f1fc22014-12-23 15:05:14 +02001388 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001389 };
Eliad Pellerb3370d42013-11-25 15:20:16 +02001390
1391 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001392
Eliad Peller08f0d232015-12-10 15:47:11 +02001393 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1394 return -EINVAL;
1395
Arik Nemtsovb2492502014-03-13 12:21:50 +02001396 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001397
Eliad Pellerf4cf8682014-11-04 16:57:06 +02001398 /*
1399 * iwl_mvm_ref_sync takes a reference before checking the flag.
1400 * so by checking there is no held reference we prevent a state
1401 * in which iwl_mvm_ref_sync continues successfully while we
1402 * configure the firmware to enter d0i3
1403 */
1404 if (iwl_mvm_ref_taken(mvm)) {
1405 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1406 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
Eliad Pellercaf15782014-11-09 15:25:33 +02001407 wake_up(&mvm->d0i3_exit_waitq);
Eliad Pellerf4cf8682014-11-04 16:57:06 +02001408 return 1;
1409 }
1410
Eliad Pellerd6230972013-11-03 20:09:08 +02001411 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1412 IEEE80211_IFACE_ITER_NORMAL,
1413 iwl_mvm_enter_d0i3_iterator,
Eliad Peller37577fe2013-12-05 17:19:39 +02001414 &d0i3_iter_data);
1415 if (d0i3_iter_data.vif_count == 1) {
1416 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001417 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
Eliad Peller37577fe2013-12-05 17:19:39 +02001418 } else {
1419 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1420 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001421 mvm->d0i3_offloading = false;
Eliad Peller37577fe2013-12-05 17:19:39 +02001422 }
Eliad Pellerd6230972013-11-03 20:09:08 +02001423
Emmanuel Grumbachecc7c512015-08-17 15:54:41 +03001424 /* make sure we have no running tx while configuring the seqno */
1425 synchronize_net();
1426
Luca Coelhoeb3908d2015-10-02 18:13:10 +03001427 /* Flush the hw queues, in case something got queued during entry */
1428 ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags);
1429 if (ret)
1430 return ret;
1431
Eliad Peller183edd82015-09-01 14:16:00 +03001432 /* configure wowlan configuration only if needed */
1433 if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
Sara Sharon0db056d2015-12-29 11:07:15 +02001434 /* wake on beacons only if beacon storing isn't supported */
1435 if (!fw_has_capa(&mvm->fw->ucode_capa,
1436 IWL_UCODE_TLV_CAPA_BEACON_STORING))
1437 wowlan_config_cmd.wakeup_filter |=
1438 cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING);
1439
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001440 iwl_mvm_wowlan_config_key_params(mvm,
1441 d0i3_iter_data.connected_vif,
1442 true, flags);
1443
Eliad Peller183edd82015-09-01 14:16:00 +03001444 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1445 &d0i3_iter_data);
1446
1447 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1448 sizeof(wowlan_config_cmd),
1449 &wowlan_config_cmd);
1450 if (ret)
1451 return ret;
1452 }
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001453
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001454 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1455 flags | CMD_MAKE_TRANS_IDLE,
1456 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
Eliad Pellerb3370d42013-11-25 15:20:16 +02001457}
1458
Eliad Pellerd6230972013-11-03 20:09:08 +02001459static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1460 struct ieee80211_vif *vif)
1461{
1462 struct iwl_mvm *mvm = _data;
1463 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1464
1465 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1466 if (vif->type != NL80211_IFTYPE_STATION ||
1467 !vif->bss_conf.assoc)
1468 return;
1469
1470 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1471}
1472
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001473struct iwl_mvm_d0i3_exit_work_iter_data {
David Spinadelb3df2242015-08-06 10:26:50 +03001474 struct iwl_mvm *mvm;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001475 struct iwl_wowlan_status *status;
David Spinadelb3df2242015-08-06 10:26:50 +03001476 u32 wakeup_reasons;
1477};
1478
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001479static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1480 struct ieee80211_vif *vif)
Eliad Peller37577fe2013-12-05 17:19:39 +02001481{
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001482 struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
Eliad Peller37577fe2013-12-05 17:19:39 +02001483 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001484 u32 reasons = data->wakeup_reasons;
Eliad Peller37577fe2013-12-05 17:19:39 +02001485
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001486 /* consider only the relevant station interface */
1487 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1488 data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1489 return;
1490
1491 if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1492 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1493 else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1494 ieee80211_beacon_loss(vif);
1495 else
1496 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
Eliad Peller37577fe2013-12-05 17:19:39 +02001497}
1498
Arik Nemtsovb2492502014-03-13 12:21:50 +02001499void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1500{
1501 struct ieee80211_sta *sta = NULL;
1502 struct iwl_mvm_sta *mvm_ap_sta;
1503 int i;
1504 bool wake_queues = false;
1505
1506 lockdep_assert_held(&mvm->mutex);
1507
1508 spin_lock_bh(&mvm->d0i3_tx_lock);
1509
1510 if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1511 goto out;
1512
1513 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1514
1515 /* get the sta in order to update seq numbers and re-enqueue skbs */
1516 sta = rcu_dereference_protected(
1517 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1518 lockdep_is_held(&mvm->mutex));
1519
1520 if (IS_ERR_OR_NULL(sta)) {
1521 sta = NULL;
1522 goto out;
1523 }
1524
1525 if (mvm->d0i3_offloading && qos_seq) {
1526 /* update qos seq numbers if offloading was enabled */
Johannes Berg9d8ce6a2014-12-23 16:02:40 +01001527 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001528 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1529 u16 seq = le16_to_cpu(qos_seq[i]);
1530 /* firmware stores last-used one, we store next one */
1531 seq += 0x10;
1532 mvm_ap_sta->tid_data[i].seq_number = seq;
1533 }
1534 }
1535out:
1536 /* re-enqueue (or drop) all packets */
1537 while (!skb_queue_empty(&mvm->d0i3_tx)) {
1538 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1539
1540 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1541 ieee80211_free_txskb(mvm->hw, skb);
1542
1543 /* if the skb_queue is not empty, we need to wake queues */
1544 wake_queues = true;
1545 }
1546 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1547 wake_up(&mvm->d0i3_exit_waitq);
1548 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1549 if (wake_queues)
1550 ieee80211_wake_queues(mvm->hw);
1551
1552 spin_unlock_bh(&mvm->d0i3_tx_lock);
1553}
1554
Eliad Peller37577fe2013-12-05 17:19:39 +02001555static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1556{
1557 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1558 struct iwl_host_cmd get_status_cmd = {
1559 .id = WOWLAN_GET_STATUSES,
Emmanuel Grumbacha1022922014-05-12 11:36:41 +03001560 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
Eliad Peller37577fe2013-12-05 17:19:39 +02001561 };
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001562 struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1563 .mvm = mvm,
1564 };
1565
Emmanuel Grumbach3afec6392014-03-30 09:10:28 +03001566 struct iwl_wowlan_status *status;
Eliad Peller37577fe2013-12-05 17:19:39 +02001567 int ret;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001568 u32 wakeup_reasons = 0;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001569 __le16 *qos_seq = NULL;
Eliad Peller37577fe2013-12-05 17:19:39 +02001570
1571 mutex_lock(&mvm->mutex);
1572 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1573 if (ret)
1574 goto out;
1575
1576 if (!get_status_cmd.resp_pkt)
1577 goto out;
1578
1579 status = (void *)get_status_cmd.resp_pkt->data;
1580 wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001581 qos_seq = status->qos_seq_ctr;
Eliad Peller37577fe2013-12-05 17:19:39 +02001582
1583 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1584
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001585 iter_data.wakeup_reasons = wakeup_reasons;
1586 iter_data.status = status;
1587 ieee80211_iterate_active_interfaces(mvm->hw,
1588 IEEE80211_IFACE_ITER_NORMAL,
1589 iwl_mvm_d0i3_exit_work_iter,
1590 &iter_data);
Eliad Peller37577fe2013-12-05 17:19:39 +02001591out:
Arik Nemtsovb2492502014-03-13 12:21:50 +02001592 iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
Jonathan Doron47c8b152014-11-27 16:55:25 +02001593
Eliad Peller7c014e32015-09-06 14:17:17 +03001594 IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1595 wakeup_reasons);
1596
Eliad Pellere5629be2015-04-14 11:36:23 +03001597 /* qos_seq might point inside resp_pkt, so free it only now */
1598 if (get_status_cmd.resp_pkt)
1599 iwl_free_resp(&get_status_cmd);
1600
Jonathan Doron47c8b152014-11-27 16:55:25 +02001601 /* the FW might have updated the regdomain */
1602 iwl_mvm_update_changed_regdom(mvm);
1603
Eliad Pellerd15a7472014-03-27 18:53:12 +02001604 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
Eliad Peller37577fe2013-12-05 17:19:39 +02001605 mutex_unlock(&mvm->mutex);
1606}
1607
Eliad Pellerd15a7472014-03-27 18:53:12 +02001608int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
Eliad Pellerb3370d42013-11-25 15:20:16 +02001609{
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001610 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1611 CMD_WAKE_UP_TRANS;
Eliad Pellerd6230972013-11-03 20:09:08 +02001612 int ret;
Eliad Pellerb3370d42013-11-25 15:20:16 +02001613
1614 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001615
Eliad Peller08f0d232015-12-10 15:47:11 +02001616 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1617 return -EINVAL;
1618
Eliad Pellerd15a7472014-03-27 18:53:12 +02001619 mutex_lock(&mvm->d0i3_suspend_mutex);
1620 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1621 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1622 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1623 mutex_unlock(&mvm->d0i3_suspend_mutex);
1624 return 0;
1625 }
1626 mutex_unlock(&mvm->d0i3_suspend_mutex);
1627
Eliad Pellerd6230972013-11-03 20:09:08 +02001628 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1629 if (ret)
Eliad Peller37577fe2013-12-05 17:19:39 +02001630 goto out;
Eliad Pellerd6230972013-11-03 20:09:08 +02001631
1632 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1633 IEEE80211_IFACE_ITER_NORMAL,
1634 iwl_mvm_exit_d0i3_iterator,
1635 mvm);
Eliad Peller37577fe2013-12-05 17:19:39 +02001636out:
1637 schedule_work(&mvm->d0i3_exit_work);
1638 return ret;
Eliad Pellerb3370d42013-11-25 15:20:16 +02001639}
1640
Eliad Peller67359432014-12-09 15:23:54 +02001641int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
Eliad Pellerd15a7472014-03-27 18:53:12 +02001642{
1643 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1644
1645 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1646 return _iwl_mvm_exit_d0i3(mvm);
1647}
1648
Johannes Berg0316d302015-05-22 13:41:07 +02001649#define IWL_MVM_COMMON_OPS \
1650 /* these could be differentiated */ \
Emmanuel Grumbach156f92f2015-11-24 14:55:18 +02001651 .async_cb = iwl_mvm_async_cb, \
Johannes Berg0316d302015-05-22 13:41:07 +02001652 .queue_full = iwl_mvm_stop_sw_queue, \
1653 .queue_not_full = iwl_mvm_wake_sw_queue, \
1654 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1655 .free_skb = iwl_mvm_free_skb, \
1656 .nic_error = iwl_mvm_nic_error, \
1657 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1658 .nic_config = iwl_mvm_nic_config, \
1659 .enter_d0i3 = iwl_mvm_enter_d0i3, \
1660 .exit_d0i3 = iwl_mvm_exit_d0i3, \
1661 /* as we only register one, these MUST be common! */ \
1662 .start = iwl_op_mode_mvm_start, \
1663 .stop = iwl_op_mode_mvm_stop
1664
Johannes Berg8ca151b2013-01-24 14:25:36 +01001665static const struct iwl_op_mode_ops iwl_mvm_ops = {
Johannes Berg0316d302015-05-22 13:41:07 +02001666 IWL_MVM_COMMON_OPS,
1667 .rx = iwl_mvm_rx,
1668};
1669
1670static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1671 struct napi_struct *napi,
1672 struct iwl_rx_cmd_buffer *rxb,
1673 unsigned int queue)
1674{
1675 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Sara Sharon585a6fc2015-12-01 13:48:18 +02001676 struct iwl_rx_packet *pkt = rxb_addr(rxb);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001677 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +02001678
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001679 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
Sara Sharona3383842016-02-28 15:41:47 +02001680 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001681 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1682 RX_QUEUES_NOTIFICATION)))
Sara Sharon94bb4482015-12-16 18:48:28 +02001683 iwl_mvm_rx_queue_notif(mvm, rxb, queue);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001684 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Sara Sharon585a6fc2015-12-01 13:48:18 +02001685 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
Johannes Berg0316d302015-05-22 13:41:07 +02001686}
1687
1688static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1689 IWL_MVM_COMMON_OPS,
1690 .rx = iwl_mvm_rx_mq,
1691 .rx_rss = iwl_mvm_rx_mq_rss,
Johannes Berg8ca151b2013-01-24 14:25:36 +01001692};