blob: f4f957fe71d7b7b86cee61b98cc0fce74cde1f07 [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;
Liad Kaufmancf961e12015-08-13 19:16:08 +0300606 mvm->first_agg_queue = IWL_MVM_DQA_MIN_DATA_QUEUE;
607 mvm->last_agg_queue = IWL_MVM_DQA_MAX_DATA_QUEUE;
608 }
Lilach Edelstein1f3b0ff2013-10-06 13:03:32 +0200609 mvm->sf_state = SF_UNINIT;
Sara Sharon1f370652016-08-31 18:13:57 +0300610 if (iwl_mvm_has_new_tx_api(mvm))
611 mvm->cur_ucode = IWL_UCODE_REGULAR;
612 else
613 mvm->cur_ucode = IWL_UCODE_INIT;
Andrei Otcheretianskic89e3332016-01-26 18:12:28 +0200614 mvm->drop_bcn_ap_mode = true;
Eytan Lifshitz19e737c2013-09-09 13:30:15 +0200615
Johannes Berg8ca151b2013-01-24 14:25:36 +0100616 mutex_init(&mvm->mutex);
Eliad Pellerd15a7472014-03-27 18:53:12 +0200617 mutex_init(&mvm->d0i3_suspend_mutex);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100618 spin_lock_init(&mvm->async_handlers_lock);
619 INIT_LIST_HEAD(&mvm->time_event_list);
Ariej Marjiehb1128892014-07-16 21:11:12 +0300620 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100621 INIT_LIST_HEAD(&mvm->async_handlers_list);
622 spin_lock_init(&mvm->time_event_lock);
Liad Kaufman4ecafae2015-07-14 13:36:18 +0300623 spin_lock_init(&mvm->queue_info_lock);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100624
625 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
626 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
627 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
Eliad Peller37577fe2013-12-05 17:19:39 +0200628 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +0200629 INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
Arik Nemtsov1d3c3f62014-10-23 18:03:10 +0300630 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
Luca Coelho69e04642016-05-03 12:18:33 +0300631 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
Liad Kaufman24afba72015-07-28 18:56:08 +0300632 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100633
Arik Nemtsovb2492502014-03-13 12:21:50 +0200634 spin_lock_init(&mvm->d0i3_tx_lock);
Eliad Peller576eeee2014-07-01 18:38:38 +0300635 spin_lock_init(&mvm->refs_lock);
Arik Nemtsovb2492502014-03-13 12:21:50 +0200636 skb_queue_head_init(&mvm->d0i3_tx);
637 init_waitqueue_head(&mvm->d0i3_exit_waitq);
Sara Sharon3a732c62016-10-09 17:34:24 +0300638 init_waitqueue_head(&mvm->rx_sync_waitq);
Arik Nemtsovb2492502014-03-13 12:21:50 +0200639
Sara Sharon0636b932016-02-18 14:21:12 +0200640 atomic_set(&mvm->queue_sync_counter, 0);
641
Johannes Berg8ca151b2013-01-24 14:25:36 +0100642 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
643
Andrei Otcheretianskid3a108a2016-02-28 17:12:21 +0200644 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
645
Johannes Berg8ca151b2013-01-24 14:25:36 +0100646 /*
647 * Populate the state variables that the transport layer needs
648 * to know about.
649 */
650 trans_cfg.op_mode = op_mode;
651 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
652 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
Emmanuel Grumbach6c4fbcb2015-11-10 11:57:41 +0200653 switch (iwlwifi_mod_params.amsdu_size) {
Emmanuel Grumbach4bdd4df2016-04-07 16:44:42 +0300654 case IWL_AMSDU_DEF:
Emmanuel Grumbach6c4fbcb2015-11-10 11:57:41 +0200655 case IWL_AMSDU_4K:
656 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
657 break;
658 case IWL_AMSDU_8K:
659 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
660 break;
661 case IWL_AMSDU_12K:
662 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
663 break;
664 default:
665 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
666 iwlwifi_mod_params.amsdu_size);
667 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
668 }
Emmanuel Grumbach4bdd4df2016-04-07 16:44:42 +0300669
670 /* the hardware splits the A-MSDU */
671 if (mvm->cfg->mq_rx_supported)
672 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100673
Luca Coelho4b87e5a2016-09-12 16:03:30 +0300674 trans->wide_cmd_header = true;
675 trans_cfg.bc_table_dword = true;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100676
Sharon Dvir39bdb172015-10-15 18:18:09 +0300677 trans_cfg.command_groups = iwl_mvm_groups;
678 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100679
Liad Kaufman097129c2015-08-09 18:28:43 +0300680 if (iwl_mvm_is_dqa_supported(mvm))
681 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
682 else
683 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
Johannes Bergb2d81db2014-08-01 20:48:25 +0200684 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
Emmanuel Grumbach3a736bc2014-09-10 11:16:41 +0300685 trans_cfg.scd_set_active = true;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100686
Johannes Berg21cb3222016-06-21 13:11:48 +0200687 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
688 driver_data[2]);
689
Liad Kaufmanb4821762014-10-19 16:58:15 +0200690 trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
Emmanuel Grumbach41837ca92015-10-21 09:00:07 +0300691 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
Liad Kaufmanb4821762014-10-19 16:58:15 +0200692
Emmanuel Grumbach4cf677f2015-01-12 14:38:29 +0200693 /* Set a short watchdog for the command queue */
694 trans_cfg.cmd_q_wdg_timeout =
Emmanuel Grumbach5d42e7b2015-03-19 20:04:51 +0200695 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
Emmanuel Grumbach4cf677f2015-01-12 14:38:29 +0200696
Johannes Berg8ca151b2013-01-24 14:25:36 +0100697 snprintf(mvm->hw->wiphy->fw_version,
698 sizeof(mvm->hw->wiphy->fw_version),
699 "%s", fw->fw_version);
700
701 /* Configure transport layer */
702 iwl_trans_configure(mvm->trans, &trans_cfg);
703
704 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
Liad Kaufman09e350f2014-11-17 11:41:07 +0200705 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
706 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
707 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
708 sizeof(trans->dbg_conf_tlv));
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +0200709 trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100710
711 /* set up notification wait support */
712 iwl_notification_wait_init(&mvm->notif_wait);
713
714 /* Init phy db */
715 mvm->phy_db = iwl_phy_db_init(trans);
716 if (!mvm->phy_db) {
717 IWL_ERR(mvm, "Cannot init phy_db\n");
718 goto out_free;
719 }
720
721 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
722 mvm->cfg->name, mvm->trans->hw_rev);
723
Eran Harary4fb06282015-04-19 10:05:18 +0300724 if (iwlwifi_mod_params.nvm_file)
Eran Hararye02a9d62014-05-07 12:27:10 +0300725 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
Eran Harary4fb06282015-04-19 10:05:18 +0300726 else
727 IWL_DEBUG_EEPROM(mvm->trans->dev,
728 "working without external nvm file\n");
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +0300729
Sara Sharon56f29292016-08-31 12:37:55 +0300730 err = iwl_trans_start_hw(mvm->trans);
731 if (err)
Eran Harary14b485f2014-04-23 10:46:09 +0300732 goto out_free;
733
Sara Sharon56f29292016-08-31 12:37:55 +0300734 mutex_lock(&mvm->mutex);
735 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE);
Sara Sharon1f370652016-08-31 18:13:57 +0300736 if (iwl_mvm_has_new_tx_api(mvm))
737 err = iwl_run_unified_mvm_ucode(mvm, true);
738 else
739 err = iwl_run_init_mvm_ucode(mvm, true);
Sara Sharon56f29292016-08-31 12:37:55 +0300740 if (!err || !iwlmvm_mod_params.init_dbg)
741 iwl_mvm_stop_device(mvm);
742 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE);
743 mutex_unlock(&mvm->mutex);
744 /* returns 0 if successful, 1 if success but in rfkill */
745 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
746 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
747 goto out_free;
Eytan Lifshitz81a67e32013-09-11 12:39:18 +0200748 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100749
David Spinadeld2496222014-05-20 12:46:37 +0300750 scan_size = iwl_mvm_scan_size(mvm);
David Spinadelfb98be52014-05-04 12:51:10 +0300751
Johannes Berg8ca151b2013-01-24 14:25:36 +0100752 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
753 if (!mvm->scan_cmd)
754 goto out_free;
755
Haim Dreyfuss5a4b2af2015-01-13 11:54:51 +0200756 /* Set EBS as successful as long as not stated otherwise by the FW. */
757 mvm->last_ebs_successful = true;
758
Johannes Berg8ca151b2013-01-24 14:25:36 +0100759 err = iwl_mvm_mac_setup_register(mvm);
760 if (err)
761 goto out_free;
Sara Sharon1f370652016-08-31 18:13:57 +0300762 mvm->hw_registered = true;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100763
Chaya Rachel Ivgi04ddc2a2016-03-03 13:31:39 +0200764 min_backoff = calc_min_backoff(trans, cfg);
765 iwl_mvm_thermal_initialize(mvm, min_backoff);
766
Johannes Berg8ca151b2013-01-24 14:25:36 +0100767 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
768 if (err)
769 goto out_unregister;
770
Matti Gottlieb3848ab62013-07-30 15:29:37 +0300771 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
772
Luca Coelho33c85ea2016-02-22 15:44:13 +0200773 /* The transport always starts with a taken reference, we can
774 * release it now if d0i3 is supported */
775 if (iwl_mvm_is_d0i3_supported(mvm))
776 iwl_trans_unref(mvm->trans);
Eliad Peller7498cf42014-01-16 17:10:44 +0200777
Gregory Greenmance792912015-06-02 18:06:16 +0300778 iwl_mvm_tof_init(mvm);
779
Johannes Berg8ca151b2013-01-24 14:25:36 +0100780 return op_mode;
781
782 out_unregister:
783 ieee80211_unregister_hw(mvm->hw);
Sara Sharon1f370652016-08-31 18:13:57 +0300784 mvm->hw_registered = false;
Eliad Peller91b0d112014-01-05 12:41:12 +0200785 iwl_mvm_leds_exit(mvm);
Chaya Rachel Ivgic221daf2015-12-29 09:54:49 +0200786 iwl_mvm_thermal_exit(mvm);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100787 out_free:
Andrei Otcheretianskidbf73d42015-09-30 12:26:23 +0200788 flush_delayed_work(&mvm->fw_dump_wk);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100789 iwl_phy_db_free(mvm->phy_db);
790 kfree(mvm->scan_cmd);
Sara Sharon56f29292016-08-31 12:37:55 +0300791 iwl_trans_op_mode_leave(trans);
792
Johannes Berg8ca151b2013-01-24 14:25:36 +0100793 ieee80211_free_hw(mvm->hw);
794 return NULL;
795}
796
797static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
798{
799 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
800 int i;
801
Luca Coelhoe27deb42016-03-01 10:30:48 +0200802 /* If d0i3 is supported, we have released the reference that
803 * the transport started with, so we should take it back now
804 * that we are leaving.
805 */
806 if (iwl_mvm_is_d0i3_supported(mvm))
807 iwl_trans_ref(mvm->trans);
808
Johannes Berg8ca151b2013-01-24 14:25:36 +0100809 iwl_mvm_leds_exit(mvm);
810
Chaya Rachel Ivgic221daf2015-12-29 09:54:49 +0200811 iwl_mvm_thermal_exit(mvm);
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +0300812
Johannes Berg8ca151b2013-01-24 14:25:36 +0100813 ieee80211_unregister_hw(mvm->hw);
814
815 kfree(mvm->scan_cmd);
Eliad Pellere59647e2013-11-28 14:08:50 +0200816 kfree(mvm->mcast_filter_cmd);
817 mvm->mcast_filter_cmd = NULL;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100818
Johannes Bergafc66bb2013-05-03 11:44:16 +0200819#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
820 kfree(mvm->d3_resume_sram);
821#endif
822
Arik Nemtsova4082842013-11-24 19:10:46 +0200823 iwl_trans_op_mode_leave(mvm->trans);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100824
825 iwl_phy_db_free(mvm->phy_db);
826 mvm->phy_db = NULL;
827
Johannes Berg8ca151b2013-01-24 14:25:36 +0100828 iwl_free_nvm_data(mvm->nvm_data);
Eran Hararyae2b21b2014-01-09 08:08:24 +0200829 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
Johannes Berg8ca151b2013-01-24 14:25:36 +0100830 kfree(mvm->nvm_sections[i].data);
831
Gregory Greenmance792912015-06-02 18:06:16 +0300832 iwl_mvm_tof_clean(mvm);
833
Emmanuel Grumbacha2a57a32016-03-15 15:36:36 +0200834 mutex_destroy(&mvm->mutex);
835 mutex_destroy(&mvm->d0i3_suspend_mutex);
836
Johannes Berg8ca151b2013-01-24 14:25:36 +0100837 ieee80211_free_hw(mvm->hw);
838}
839
840struct iwl_async_handler_entry {
841 struct list_head list;
842 struct iwl_rx_cmd_buffer rxb;
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200843 enum iwl_rx_handler_context context;
Johannes Berg04168412015-06-23 21:22:09 +0200844 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100845};
846
847void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
848{
849 struct iwl_async_handler_entry *entry, *tmp;
850
851 spin_lock_bh(&mvm->async_handlers_lock);
852 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
853 iwl_free_rxb(&entry->rxb);
854 list_del(&entry->list);
855 kfree(entry);
856 }
857 spin_unlock_bh(&mvm->async_handlers_lock);
858}
859
860static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
861{
862 struct iwl_mvm *mvm =
863 container_of(wk, struct iwl_mvm, async_handlers_wk);
864 struct iwl_async_handler_entry *entry, *tmp;
Johannes Berg80982032016-08-31 22:16:11 +0200865 LIST_HEAD(local_list);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100866
867 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
Johannes Berg8ca151b2013-01-24 14:25:36 +0100868
869 /*
870 * Sync with Rx path with a lock. Remove all the entries from this list,
871 * add them to a local one (lock free), and then handle them.
872 */
873 spin_lock_bh(&mvm->async_handlers_lock);
874 list_splice_init(&mvm->async_handlers_list, &local_list);
875 spin_unlock_bh(&mvm->async_handlers_lock);
876
877 list_for_each_entry_safe(entry, tmp, &local_list, list) {
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200878 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
879 mutex_lock(&mvm->mutex);
Johannes Berg04168412015-06-23 21:22:09 +0200880 entry->fn(mvm, &entry->rxb);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100881 iwl_free_rxb(&entry->rxb);
882 list_del(&entry->list);
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200883 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
884 mutex_unlock(&mvm->mutex);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100885 kfree(entry);
886 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100887}
888
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200889static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
890 struct iwl_rx_packet *pkt)
891{
892 struct iwl_fw_dbg_trigger_tlv *trig;
893 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200894 int i;
895
896 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
897 return;
898
899 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
900 cmds_trig = (void *)trig->data;
901
902 if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
903 return;
904
905 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
906 /* don't collect on CMD 0 */
907 if (!cmds_trig->cmds[i].cmd_id)
908 break;
909
Sara Sharon0ab66e62015-07-13 14:23:59 +0300910 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
911 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200912 continue;
913
Johannes Berg5d4f9292015-03-31 09:12:54 +0200914 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
Sara Sharon0ab66e62015-07-13 14:23:59 +0300915 "CMD 0x%02x.%02x received",
916 pkt->hdr.group_id, pkt->hdr.cmd);
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200917 break;
918 }
919}
920
Johannes Berg0316d302015-05-22 13:41:07 +0200921static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
922 struct iwl_rx_cmd_buffer *rxb,
923 struct iwl_rx_packet *pkt)
Johannes Berg8ca151b2013-01-24 14:25:36 +0100924{
Johannes Berg0316d302015-05-22 13:41:07 +0200925 int i;
Johannes Berg1738d602015-05-22 12:09:44 +0200926
Emmanuel Grumbach917f39b2015-02-10 10:49:20 +0200927 iwl_mvm_rx_check_trigger(mvm, pkt);
928
Johannes Berg8ca151b2013-01-24 14:25:36 +0100929 /*
930 * Do the notification wait before RX handlers so
931 * even if the RX handler consumes the RXB we have
932 * access to it in the notification wait entry.
933 */
934 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
935
936 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
937 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200938 struct iwl_async_handler_entry *entry;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100939
Avraham Stern1230b162015-07-09 17:17:03 +0300940 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200941 continue;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100942
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200943 if (rx_h->context == RX_HANDLER_SYNC) {
Johannes Berg04168412015-06-23 21:22:09 +0200944 rx_h->fn(mvm, rxb);
Johannes Bergf7e64692015-06-23 21:58:17 +0200945 return;
Johannes Berg04168412015-06-23 21:22:09 +0200946 }
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200947
948 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
949 /* we can't do much... */
950 if (!entry)
Johannes Bergf7e64692015-06-23 21:58:17 +0200951 return;
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200952
953 entry->rxb._page = rxb_steal_page(rxb);
954 entry->rxb._offset = rxb->_offset;
955 entry->rxb._rx_page_order = rxb->_rx_page_order;
956 entry->fn = rx_h->fn;
Chaya Rachel Ivgic9cb14a2016-03-03 15:35:34 +0200957 entry->context = rx_h->context;
Emmanuel Grumbach36eed562013-02-10 13:25:25 +0200958 spin_lock(&mvm->async_handlers_lock);
959 list_add_tail(&entry->list, &mvm->async_handlers_list);
960 spin_unlock(&mvm->async_handlers_lock);
961 schedule_work(&mvm->async_handlers_wk);
962 break;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100963 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100964}
965
Johannes Berg0316d302015-05-22 13:41:07 +0200966static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
967 struct napi_struct *napi,
968 struct iwl_rx_cmd_buffer *rxb)
969{
970 struct iwl_rx_packet *pkt = rxb_addr(rxb);
971 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200972 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +0200973
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200974 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Johannes Berg0316d302015-05-22 13:41:07 +0200975 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200976 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
Johannes Berg0316d302015-05-22 13:41:07 +0200977 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
978 else
979 iwl_mvm_rx_common(mvm, rxb, pkt);
980}
981
982static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
983 struct napi_struct *napi,
984 struct iwl_rx_cmd_buffer *rxb)
985{
986 struct iwl_rx_packet *pkt = rxb_addr(rxb);
987 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200988 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +0200989
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200990 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Johannes Berg780e87c2015-09-03 14:56:10 +0200991 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200992 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
993 RX_QUEUES_NOTIFICATION)))
Sara Sharon94bb4482015-12-16 18:48:28 +0200994 iwl_mvm_rx_queue_notif(mvm, rxb, 0);
Johannes Berg61b0f5d2016-08-04 08:57:59 +0200995 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
Johannes Berg58035432016-04-27 13:33:26 +0200996 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
Johannes Berg0316d302015-05-22 13:41:07 +0200997 else
998 iwl_mvm_rx_common(mvm, rxb, pkt);
999}
1000
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001001void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001002{
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001003 int q;
Johannes Berg8ca151b2013-01-24 14:25:36 +01001004
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001005 if (WARN_ON_ONCE(!mq))
Johannes Berg8ca151b2013-01-24 14:25:36 +01001006 return;
1007
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001008 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1009 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
1010 IWL_DEBUG_TX_QUEUES(mvm,
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001011 "mac80211 %d already stopped\n", q);
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001012 continue;
1013 }
1014
1015 ieee80211_stop_queue(mvm->hw, q);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001016 }
Johannes Berg8ca151b2013-01-24 14:25:36 +01001017}
1018
Emmanuel Grumbach156f92f2015-11-24 14:55:18 +02001019static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1020 const struct iwl_device_cmd *cmd)
1021{
1022 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1023
1024 /*
1025 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1026 * commands that need to block the Tx queues.
1027 */
1028 iwl_trans_block_txq_ptrs(mvm->trans, false);
1029}
1030
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001031static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001032{
1033 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001034 unsigned long mq;
Johannes Berg8ca151b2013-01-24 14:25:36 +01001035
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001036 spin_lock_bh(&mvm->queue_info_lock);
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001037 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211;
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001038 spin_unlock_bh(&mvm->queue_info_lock);
1039
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001040 iwl_mvm_stop_mac_queues(mvm, mq);
1041}
1042
1043void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
1044{
1045 int q;
1046
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001047 if (WARN_ON_ONCE(!mq))
Johannes Berg8ca151b2013-01-24 14:25:36 +01001048 return;
1049
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001050 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1051 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
1052 IWL_DEBUG_TX_QUEUES(mvm,
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001053 "mac80211 %d still stopped\n", q);
Liad Kaufman4ecafae2015-07-14 13:36:18 +03001054 continue;
1055 }
1056
1057 ieee80211_wake_queue(mvm->hw, q);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001058 }
Johannes Berg8ca151b2013-01-24 14:25:36 +01001059}
1060
Liad Kaufmanb4f7a9d2016-02-03 11:05:41 +02001061static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1062{
1063 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1064 unsigned long mq;
1065
1066 spin_lock_bh(&mvm->queue_info_lock);
1067 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211;
1068 spin_unlock_bh(&mvm->queue_info_lock);
1069
1070 iwl_mvm_start_mac_queues(mvm, mq);
1071}
1072
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +03001073void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1074{
1075 if (state)
1076 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1077 else
1078 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1079
1080 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
1081}
1082
Johannes Berg14cfca72014-02-25 20:50:53 +01001083static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001084{
1085 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Emmanuel Grumbach31b8b342014-11-02 15:48:09 +02001086 bool calibrating = ACCESS_ONCE(mvm->calibrating);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001087
1088 if (state)
1089 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1090 else
1091 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1092
Eytan Lifshitz9ee718a2013-05-19 19:14:41 +03001093 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
Johannes Berg14cfca72014-02-25 20:50:53 +01001094
Emmanuel Grumbach31b8b342014-11-02 15:48:09 +02001095 /* iwl_run_init_mvm_ucode is waiting for results, abort it */
1096 if (calibrating)
1097 iwl_abort_notification_waits(&mvm->notif_wait);
1098
1099 /*
1100 * Stop the device if we run OPERATIONAL firmware or if we are in the
1101 * middle of the calibrations.
1102 */
1103 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001104}
1105
1106static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1107{
1108 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1109 struct ieee80211_tx_info *info;
1110
1111 info = IEEE80211_SKB_CB(skb);
1112 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1113 ieee80211_free_txskb(mvm->hw, skb);
1114}
1115
Johannes Bergac1ed412013-07-04 15:25:25 +02001116struct iwl_mvm_reprobe {
1117 struct device *dev;
1118 struct work_struct work;
1119};
1120
1121static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1122{
1123 struct iwl_mvm_reprobe *reprobe;
1124
1125 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1126 if (device_reprobe(reprobe->dev))
1127 dev_err(reprobe->dev, "reprobe failed!\n");
1128 kfree(reprobe);
1129 module_put(THIS_MODULE);
1130}
1131
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001132static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
1133{
1134 struct iwl_mvm *mvm =
Emmanuel Grumbachd2709ad2015-01-29 14:58:06 +02001135 container_of(work, struct iwl_mvm, fw_dump_wk.work);
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001136
Liad Kaufmanfb2380a2015-01-01 17:42:46 +02001137 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
1138 return;
1139
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001140 mutex_lock(&mvm->mutex);
Emmanuel Grumbach145d90b2015-04-13 12:05:48 +03001141
1142 /* stop recording */
1143 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
1144 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
1145 } else {
1146 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
1147 /* wait before we collect the data till the DBGC stop */
1148 udelay(100);
1149 }
1150
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001151 iwl_mvm_fw_error_dump(mvm);
Emmanuel Grumbache66e0b72014-12-29 09:42:37 +02001152
1153 /* start recording again if the firmware is not crashed */
1154 WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
Emmanuel Grumbach9beda942015-03-02 14:39:03 +02001155 mvm->fw->dbg_dest_tlv &&
1156 iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
Emmanuel Grumbache66e0b72014-12-29 09:42:37 +02001157
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001158 mutex_unlock(&mvm->mutex);
Liad Kaufmanfb2380a2015-01-01 17:42:46 +02001159
1160 iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
Emmanuel Grumbach4bfa47f2014-09-11 16:19:43 +03001161}
1162
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001163void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
Johannes Berg8ca151b2013-01-24 14:25:36 +01001164{
Johannes Berg8ca151b2013-01-24 14:25:36 +01001165 iwl_abort_notification_waits(&mvm->notif_wait);
1166
1167 /*
David Spinadel992f81f2014-01-09 14:22:55 +02001168 * This is a bit racy, but worst case we tell mac80211 about
1169 * a stopped/aborted scan when that was already done which
1170 * is not a problem. It is necessary to abort any os scan
1171 * here because mac80211 requires having the scan cleared
1172 * before restarting.
1173 * We'll reset the scan_status to NONE in restart cleanup in
1174 * the next start() call from mac80211. If restart isn't called
1175 * (no fw restart) scan status will stay busy.
1176 */
David Spinadel4ffb3652015-03-10 10:06:02 +02001177 iwl_mvm_report_scan_aborted(mvm);
David Spinadel992f81f2014-01-09 14:22:55 +02001178
1179 /*
Johannes Berg8ca151b2013-01-24 14:25:36 +01001180 * If we're restarting already, don't cycle restarts.
1181 * If INIT fw asserted, it will likely fail again.
1182 * If WoWLAN fw asserted, don't restart either, mac80211
1183 * can't recover this since we're already half suspended.
1184 */
Luciano Coelho60f10712015-01-28 09:00:27 +02001185 if (!mvm->restart_fw && fw_error) {
Oren Givon36fb9012015-07-15 15:47:28 +03001186 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1187 NULL);
Luciano Coelho60f10712015-01-28 09:00:27 +02001188 } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1189 &mvm->status)) {
Johannes Bergac1ed412013-07-04 15:25:25 +02001190 struct iwl_mvm_reprobe *reprobe;
1191
1192 IWL_ERR(mvm,
1193 "Firmware error during reconfiguration - reprobe!\n");
1194
1195 /*
1196 * get a module reference to avoid doing this while unloading
1197 * anyway and to avoid scheduling a work with code that's
1198 * being removed.
1199 */
1200 if (!try_module_get(THIS_MODULE)) {
1201 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1202 return;
1203 }
1204
1205 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1206 if (!reprobe) {
1207 module_put(THIS_MODULE);
1208 return;
1209 }
1210 reprobe->dev = mvm->trans->dev;
1211 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1212 schedule_work(&reprobe->work);
Sara Sharon1f370652016-08-31 18:13:57 +03001213 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR &&
1214 mvm->hw_registered) {
Eliad Peller7498cf42014-01-16 17:10:44 +02001215 /* don't let the transport/FW power down */
1216 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1217
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001218 if (fw_error && mvm->restart_fw > 0)
Eran Harary291aa7c2013-07-03 11:00:06 +03001219 mvm->restart_fw--;
Johannes Berg8ca151b2013-01-24 14:25:36 +01001220 ieee80211_restart_hw(mvm->hw);
1221 }
1222}
1223
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001224static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1225{
1226 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1227
1228 iwl_mvm_dump_nic_error_log(mvm);
Emmanuel Grumbach1bd3cbc2014-03-18 21:15:06 +02001229
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001230 iwl_mvm_nic_restart(mvm, true);
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001231}
1232
Johannes Berg8ca151b2013-01-24 14:25:36 +01001233static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1234{
Emmanuel Grumbach715c9982013-02-28 08:57:31 +02001235 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1236
Johannes Berg8ca151b2013-01-24 14:25:36 +01001237 WARN_ON(1);
Luciano Coelhob08c1d92014-05-20 23:31:05 +03001238 iwl_mvm_nic_restart(mvm, true);
Johannes Berg8ca151b2013-01-24 14:25:36 +01001239}
1240
Eliad Peller37577fe2013-12-05 17:19:39 +02001241struct iwl_d0i3_iter_data {
1242 struct iwl_mvm *mvm;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001243 struct ieee80211_vif *connected_vif;
Eliad Peller37577fe2013-12-05 17:19:39 +02001244 u8 ap_sta_id;
1245 u8 vif_count;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001246 u8 offloading_tid;
1247 bool disable_offloading;
Eliad Peller37577fe2013-12-05 17:19:39 +02001248};
1249
Arik Nemtsovb2492502014-03-13 12:21:50 +02001250static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1251 struct ieee80211_vif *vif,
1252 struct iwl_d0i3_iter_data *iter_data)
1253{
1254 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001255 struct iwl_mvm_sta *mvmsta;
1256 u32 available_tids = 0;
1257 u8 tid;
1258
1259 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1260 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1261 return false;
1262
Sara Sharon13303c02016-04-10 15:51:54 +03001263 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id);
1264 if (!mvmsta)
Arik Nemtsovb2492502014-03-13 12:21:50 +02001265 return false;
1266
Arik Nemtsovb2492502014-03-13 12:21:50 +02001267 spin_lock_bh(&mvmsta->lock);
1268 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1269 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1270
1271 /*
1272 * in case of pending tx packets, don't use this tid
1273 * for offloading in order to prevent reuse of the same
1274 * qos seq counters.
1275 */
1276 if (iwl_mvm_tid_queued(tid_data))
1277 continue;
1278
1279 if (tid_data->state != IWL_AGG_OFF)
1280 continue;
1281
1282 available_tids |= BIT(tid);
1283 }
1284 spin_unlock_bh(&mvmsta->lock);
1285
1286 /*
1287 * disallow protocol offloading if we have no available tid
1288 * (with no pending frames and no active aggregation,
1289 * as we don't handle "holes" properly - the scheduler needs the
1290 * frame's seq number and TFD index to match)
1291 */
1292 if (!available_tids)
1293 return true;
1294
1295 /* for simplicity, just use the first available tid */
1296 iter_data->offloading_tid = ffs(available_tids) - 1;
1297 return false;
1298}
1299
Eliad Pellerd6230972013-11-03 20:09:08 +02001300static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1301 struct ieee80211_vif *vif)
1302{
Eliad Peller37577fe2013-12-05 17:19:39 +02001303 struct iwl_d0i3_iter_data *data = _data;
1304 struct iwl_mvm *mvm = data->mvm;
1305 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Eliad Pellerd6230972013-11-03 20:09:08 +02001306 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1307
1308 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1309 if (vif->type != NL80211_IFTYPE_STATION ||
1310 !vif->bss_conf.assoc)
1311 return;
1312
Arik Nemtsovb2492502014-03-13 12:21:50 +02001313 /*
1314 * in case of pending tx packets or active aggregations,
1315 * avoid offloading features in order to prevent reuse of
1316 * the same qos seq counters.
1317 */
1318 if (iwl_mvm_disallow_offloading(mvm, vif, data))
1319 data->disable_offloading = true;
1320
Eliad Pellerd6230972013-11-03 20:09:08 +02001321 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
Sara Sharonc97dab42015-11-19 11:53:49 +02001322 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1323 false, flags);
Eliad Pellerd6230972013-11-03 20:09:08 +02001324
1325 /*
1326 * on init/association, mvm already configures POWER_TABLE_CMD
1327 * and REPLY_MCAST_FILTER_CMD, so currently don't
1328 * reconfigure them (we might want to use different
1329 * params later on, though).
1330 */
Eliad Peller37577fe2013-12-05 17:19:39 +02001331 data->ap_sta_id = mvmvif->ap_sta_id;
1332 data->vif_count++;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001333
1334 /*
1335 * no new commands can be sent at this stage, so it's safe
1336 * to save the vif pointer during d0i3 entrance.
1337 */
1338 data->connected_vif = vif;
Eliad Pellerd6230972013-11-03 20:09:08 +02001339}
1340
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001341static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001342 struct iwl_wowlan_config_cmd *cmd,
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001343 struct iwl_d0i3_iter_data *iter_data)
1344{
1345 struct ieee80211_sta *ap_sta;
1346 struct iwl_mvm_sta *mvm_ap_sta;
1347
1348 if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1349 return;
1350
1351 rcu_read_lock();
1352
1353 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1354 if (IS_ERR_OR_NULL(ap_sta))
1355 goto out;
1356
1357 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001358 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001359 cmd->offloading_tid = iter_data->offloading_tid;
Sara Sharon70b4c532015-11-19 13:12:15 +02001360 cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
Sara Sharon0db056d2015-12-29 11:07:15 +02001361 ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON;
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001362 /*
1363 * The d0i3 uCode takes care of the nonqos counters,
1364 * so configure only the qos seq ones.
1365 */
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001366 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
Eliad Peller1a95c8d2013-11-21 19:19:52 +02001367out:
1368 rcu_read_unlock();
1369}
Eliad Peller67359432014-12-09 15:23:54 +02001370
1371int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
Eliad Pellerb3370d42013-11-25 15:20:16 +02001372{
1373 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001374 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001375 int ret;
Eliad Peller37577fe2013-12-05 17:19:39 +02001376 struct iwl_d0i3_iter_data d0i3_iter_data = {
1377 .mvm = mvm,
1378 };
Emmanuel Grumbachc8b06a92014-11-24 09:06:57 +02001379 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1380 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1381 IWL_WOWLAN_WAKEUP_BEACON_MISS |
Sara Sharon0db056d2015-12-29 11:07:15 +02001382 IWL_WOWLAN_WAKEUP_LINK_CHANGE),
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001383 };
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001384 struct iwl_d3_manager_config d3_cfg_cmd = {
1385 .min_sleep_time = cpu_to_le32(1000),
Eliad Pellerd9f1fc22014-12-23 15:05:14 +02001386 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001387 };
Eliad Pellerb3370d42013-11-25 15:20:16 +02001388
1389 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001390
Eliad Peller08f0d232015-12-10 15:47:11 +02001391 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1392 return -EINVAL;
1393
Arik Nemtsovb2492502014-03-13 12:21:50 +02001394 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001395
Eliad Pellerf4cf8682014-11-04 16:57:06 +02001396 /*
1397 * iwl_mvm_ref_sync takes a reference before checking the flag.
1398 * so by checking there is no held reference we prevent a state
1399 * in which iwl_mvm_ref_sync continues successfully while we
1400 * configure the firmware to enter d0i3
1401 */
1402 if (iwl_mvm_ref_taken(mvm)) {
1403 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1404 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
Eliad Pellercaf15782014-11-09 15:25:33 +02001405 wake_up(&mvm->d0i3_exit_waitq);
Eliad Pellerf4cf8682014-11-04 16:57:06 +02001406 return 1;
1407 }
1408
Eliad Pellerd6230972013-11-03 20:09:08 +02001409 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1410 IEEE80211_IFACE_ITER_NORMAL,
1411 iwl_mvm_enter_d0i3_iterator,
Eliad Peller37577fe2013-12-05 17:19:39 +02001412 &d0i3_iter_data);
1413 if (d0i3_iter_data.vif_count == 1) {
1414 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001415 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
Eliad Peller37577fe2013-12-05 17:19:39 +02001416 } else {
1417 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1418 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001419 mvm->d0i3_offloading = false;
Eliad Peller37577fe2013-12-05 17:19:39 +02001420 }
Eliad Pellerd6230972013-11-03 20:09:08 +02001421
Emmanuel Grumbachecc7c512015-08-17 15:54:41 +03001422 /* make sure we have no running tx while configuring the seqno */
1423 synchronize_net();
1424
Luca Coelhoeb3908d2015-10-02 18:13:10 +03001425 /* Flush the hw queues, in case something got queued during entry */
1426 ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags);
1427 if (ret)
1428 return ret;
1429
Eliad Peller183edd82015-09-01 14:16:00 +03001430 /* configure wowlan configuration only if needed */
1431 if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
Sara Sharon0db056d2015-12-29 11:07:15 +02001432 /* wake on beacons only if beacon storing isn't supported */
1433 if (!fw_has_capa(&mvm->fw->ucode_capa,
1434 IWL_UCODE_TLV_CAPA_BEACON_STORING))
1435 wowlan_config_cmd.wakeup_filter |=
1436 cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING);
1437
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001438 iwl_mvm_wowlan_config_key_params(mvm,
1439 d0i3_iter_data.connected_vif,
1440 true, flags);
1441
Eliad Peller183edd82015-09-01 14:16:00 +03001442 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1443 &d0i3_iter_data);
1444
1445 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1446 sizeof(wowlan_config_cmd),
1447 &wowlan_config_cmd);
1448 if (ret)
1449 return ret;
1450 }
Eliad Pellerb77f06d2013-11-06 10:49:32 +02001451
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001452 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1453 flags | CMD_MAKE_TRANS_IDLE,
1454 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
Eliad Pellerb3370d42013-11-25 15:20:16 +02001455}
1456
Eliad Pellerd6230972013-11-03 20:09:08 +02001457static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1458 struct ieee80211_vif *vif)
1459{
1460 struct iwl_mvm *mvm = _data;
1461 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1462
1463 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1464 if (vif->type != NL80211_IFTYPE_STATION ||
1465 !vif->bss_conf.assoc)
1466 return;
1467
1468 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1469}
1470
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001471struct iwl_mvm_d0i3_exit_work_iter_data {
David Spinadelb3df2242015-08-06 10:26:50 +03001472 struct iwl_mvm *mvm;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001473 struct iwl_wowlan_status *status;
David Spinadelb3df2242015-08-06 10:26:50 +03001474 u32 wakeup_reasons;
1475};
1476
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001477static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1478 struct ieee80211_vif *vif)
Eliad Peller37577fe2013-12-05 17:19:39 +02001479{
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001480 struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
Eliad Peller37577fe2013-12-05 17:19:39 +02001481 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001482 u32 reasons = data->wakeup_reasons;
Eliad Peller37577fe2013-12-05 17:19:39 +02001483
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001484 /* consider only the relevant station interface */
1485 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1486 data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1487 return;
1488
1489 if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1490 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1491 else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1492 ieee80211_beacon_loss(vif);
1493 else
1494 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
Eliad Peller37577fe2013-12-05 17:19:39 +02001495}
1496
Arik Nemtsovb2492502014-03-13 12:21:50 +02001497void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1498{
1499 struct ieee80211_sta *sta = NULL;
1500 struct iwl_mvm_sta *mvm_ap_sta;
1501 int i;
1502 bool wake_queues = false;
1503
1504 lockdep_assert_held(&mvm->mutex);
1505
1506 spin_lock_bh(&mvm->d0i3_tx_lock);
1507
1508 if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1509 goto out;
1510
1511 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1512
1513 /* get the sta in order to update seq numbers and re-enqueue skbs */
1514 sta = rcu_dereference_protected(
1515 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1516 lockdep_is_held(&mvm->mutex));
1517
1518 if (IS_ERR_OR_NULL(sta)) {
1519 sta = NULL;
1520 goto out;
1521 }
1522
1523 if (mvm->d0i3_offloading && qos_seq) {
1524 /* update qos seq numbers if offloading was enabled */
Johannes Berg9d8ce6a2014-12-23 16:02:40 +01001525 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001526 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1527 u16 seq = le16_to_cpu(qos_seq[i]);
1528 /* firmware stores last-used one, we store next one */
1529 seq += 0x10;
1530 mvm_ap_sta->tid_data[i].seq_number = seq;
1531 }
1532 }
1533out:
1534 /* re-enqueue (or drop) all packets */
1535 while (!skb_queue_empty(&mvm->d0i3_tx)) {
1536 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1537
1538 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1539 ieee80211_free_txskb(mvm->hw, skb);
1540
1541 /* if the skb_queue is not empty, we need to wake queues */
1542 wake_queues = true;
1543 }
1544 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1545 wake_up(&mvm->d0i3_exit_waitq);
1546 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1547 if (wake_queues)
1548 ieee80211_wake_queues(mvm->hw);
1549
1550 spin_unlock_bh(&mvm->d0i3_tx_lock);
1551}
1552
Eliad Peller37577fe2013-12-05 17:19:39 +02001553static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1554{
1555 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1556 struct iwl_host_cmd get_status_cmd = {
1557 .id = WOWLAN_GET_STATUSES,
Emmanuel Grumbacha1022922014-05-12 11:36:41 +03001558 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
Eliad Peller37577fe2013-12-05 17:19:39 +02001559 };
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001560 struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1561 .mvm = mvm,
1562 };
1563
Emmanuel Grumbach3afec6392014-03-30 09:10:28 +03001564 struct iwl_wowlan_status *status;
Eliad Peller37577fe2013-12-05 17:19:39 +02001565 int ret;
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001566 u32 wakeup_reasons = 0;
Arik Nemtsovb2492502014-03-13 12:21:50 +02001567 __le16 *qos_seq = NULL;
Eliad Peller37577fe2013-12-05 17:19:39 +02001568
1569 mutex_lock(&mvm->mutex);
1570 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1571 if (ret)
1572 goto out;
1573
1574 if (!get_status_cmd.resp_pkt)
1575 goto out;
1576
1577 status = (void *)get_status_cmd.resp_pkt->data;
1578 wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
Arik Nemtsovb2492502014-03-13 12:21:50 +02001579 qos_seq = status->qos_seq_ctr;
Eliad Peller37577fe2013-12-05 17:19:39 +02001580
1581 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1582
Eliad Pellera3f7ba52015-11-11 17:23:59 +02001583 iter_data.wakeup_reasons = wakeup_reasons;
1584 iter_data.status = status;
1585 ieee80211_iterate_active_interfaces(mvm->hw,
1586 IEEE80211_IFACE_ITER_NORMAL,
1587 iwl_mvm_d0i3_exit_work_iter,
1588 &iter_data);
Eliad Peller37577fe2013-12-05 17:19:39 +02001589out:
Arik Nemtsovb2492502014-03-13 12:21:50 +02001590 iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
Jonathan Doron47c8b152014-11-27 16:55:25 +02001591
Eliad Peller7c014e32015-09-06 14:17:17 +03001592 IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1593 wakeup_reasons);
1594
Eliad Pellere5629be2015-04-14 11:36:23 +03001595 /* qos_seq might point inside resp_pkt, so free it only now */
1596 if (get_status_cmd.resp_pkt)
1597 iwl_free_resp(&get_status_cmd);
1598
Jonathan Doron47c8b152014-11-27 16:55:25 +02001599 /* the FW might have updated the regdomain */
1600 iwl_mvm_update_changed_regdom(mvm);
1601
Eliad Pellerd15a7472014-03-27 18:53:12 +02001602 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
Eliad Peller37577fe2013-12-05 17:19:39 +02001603 mutex_unlock(&mvm->mutex);
1604}
1605
Eliad Pellerd15a7472014-03-27 18:53:12 +02001606int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
Eliad Pellerb3370d42013-11-25 15:20:16 +02001607{
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001608 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1609 CMD_WAKE_UP_TRANS;
Eliad Pellerd6230972013-11-03 20:09:08 +02001610 int ret;
Eliad Pellerb3370d42013-11-25 15:20:16 +02001611
1612 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
Arik Nemtsov98ee7782013-10-02 16:58:09 +03001613
Eliad Peller08f0d232015-12-10 15:47:11 +02001614 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1615 return -EINVAL;
1616
Eliad Pellerd15a7472014-03-27 18:53:12 +02001617 mutex_lock(&mvm->d0i3_suspend_mutex);
1618 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1619 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1620 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1621 mutex_unlock(&mvm->d0i3_suspend_mutex);
1622 return 0;
1623 }
1624 mutex_unlock(&mvm->d0i3_suspend_mutex);
1625
Eliad Pellerd6230972013-11-03 20:09:08 +02001626 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1627 if (ret)
Eliad Peller37577fe2013-12-05 17:19:39 +02001628 goto out;
Eliad Pellerd6230972013-11-03 20:09:08 +02001629
1630 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1631 IEEE80211_IFACE_ITER_NORMAL,
1632 iwl_mvm_exit_d0i3_iterator,
1633 mvm);
Eliad Peller37577fe2013-12-05 17:19:39 +02001634out:
1635 schedule_work(&mvm->d0i3_exit_work);
1636 return ret;
Eliad Pellerb3370d42013-11-25 15:20:16 +02001637}
1638
Eliad Peller67359432014-12-09 15:23:54 +02001639int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
Eliad Pellerd15a7472014-03-27 18:53:12 +02001640{
1641 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1642
1643 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1644 return _iwl_mvm_exit_d0i3(mvm);
1645}
1646
Johannes Berg0316d302015-05-22 13:41:07 +02001647#define IWL_MVM_COMMON_OPS \
1648 /* these could be differentiated */ \
Emmanuel Grumbach156f92f2015-11-24 14:55:18 +02001649 .async_cb = iwl_mvm_async_cb, \
Johannes Berg0316d302015-05-22 13:41:07 +02001650 .queue_full = iwl_mvm_stop_sw_queue, \
1651 .queue_not_full = iwl_mvm_wake_sw_queue, \
1652 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1653 .free_skb = iwl_mvm_free_skb, \
1654 .nic_error = iwl_mvm_nic_error, \
1655 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1656 .nic_config = iwl_mvm_nic_config, \
1657 .enter_d0i3 = iwl_mvm_enter_d0i3, \
1658 .exit_d0i3 = iwl_mvm_exit_d0i3, \
1659 /* as we only register one, these MUST be common! */ \
1660 .start = iwl_op_mode_mvm_start, \
1661 .stop = iwl_op_mode_mvm_stop
1662
Johannes Berg8ca151b2013-01-24 14:25:36 +01001663static const struct iwl_op_mode_ops iwl_mvm_ops = {
Johannes Berg0316d302015-05-22 13:41:07 +02001664 IWL_MVM_COMMON_OPS,
1665 .rx = iwl_mvm_rx,
1666};
1667
1668static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1669 struct napi_struct *napi,
1670 struct iwl_rx_cmd_buffer *rxb,
1671 unsigned int queue)
1672{
1673 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
Sara Sharon585a6fc2015-12-01 13:48:18 +02001674 struct iwl_rx_packet *pkt = rxb_addr(rxb);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001675 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
Johannes Berg0316d302015-05-22 13:41:07 +02001676
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001677 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
Sara Sharona3383842016-02-28 15:41:47 +02001678 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001679 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1680 RX_QUEUES_NOTIFICATION)))
Sara Sharon94bb4482015-12-16 18:48:28 +02001681 iwl_mvm_rx_queue_notif(mvm, rxb, queue);
Johannes Berg61b0f5d2016-08-04 08:57:59 +02001682 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
Sara Sharon585a6fc2015-12-01 13:48:18 +02001683 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
Johannes Berg0316d302015-05-22 13:41:07 +02001684}
1685
1686static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1687 IWL_MVM_COMMON_OPS,
1688 .rx = iwl_mvm_rx_mq,
1689 .rx_rss = iwl_mvm_rx_mq_rss,
Johannes Berg8ca151b2013-01-24 14:25:36 +01001690};