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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2012-2014, 2018, 2021-2022 Intel Corporation
4 * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7#include <net/mac80211.h>
8#include "fw-api.h"
9#include "mvm.h"
10
11#define QUOTA_100 IWL_MVM_MAX_QUOTA
12#define QUOTA_LOWLAT_MIN ((QUOTA_100 * IWL_MVM_LOWLAT_QUOTA_MIN_PERCENT) / 100)
13
14struct iwl_mvm_quota_iterator_data {
15 int n_interfaces[MAX_BINDINGS];
16 int colors[MAX_BINDINGS];
17 int low_latency[MAX_BINDINGS];
18#ifdef CONFIG_IWLWIFI_DEBUGFS
19 int dbgfs_min[MAX_BINDINGS];
20#endif
21 int n_low_latency_bindings;
22 struct ieee80211_vif *disabled_vif;
23};
24
25static void iwl_mvm_quota_iterator(void *_data, u8 *mac,
26 struct ieee80211_vif *vif)
27{
28 struct iwl_mvm_quota_iterator_data *data = _data;
29 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
30 u16 id;
31
32 /* skip disabled interfaces here immediately */
33 if (vif == data->disabled_vif)
34 return;
35
36 if (!mvmvif->deflink.phy_ctxt)
37 return;
38
39 /* currently, PHY ID == binding ID */
40 id = mvmvif->deflink.phy_ctxt->id;
41
42 /* need at least one binding per PHY */
43 BUILD_BUG_ON(NUM_PHY_CTX > MAX_BINDINGS);
44
45 if (WARN_ON_ONCE(id >= MAX_BINDINGS))
46 return;
47
48 switch (vif->type) {
49 case NL80211_IFTYPE_STATION:
50 if (vif->cfg.assoc)
51 break;
52 return;
53 case NL80211_IFTYPE_AP:
54 case NL80211_IFTYPE_ADHOC:
55 if (mvmvif->ap_ibss_active)
56 break;
57 return;
58 case NL80211_IFTYPE_MONITOR:
59 if (mvmvif->monitor_active)
60 break;
61 return;
62 case NL80211_IFTYPE_P2P_DEVICE:
63 return;
64 default:
65 WARN_ON_ONCE(1);
66 return;
67 }
68
69 if (data->colors[id] < 0)
70 data->colors[id] = mvmvif->deflink.phy_ctxt->color;
71 else
72 WARN_ON_ONCE(data->colors[id] !=
73 mvmvif->deflink.phy_ctxt->color);
74
75 data->n_interfaces[id]++;
76
77#ifdef CONFIG_IWLWIFI_DEBUGFS
78 if (mvmvif->dbgfs_quota_min)
79 data->dbgfs_min[id] = max(data->dbgfs_min[id],
80 mvmvif->dbgfs_quota_min);
81#endif
82
83 if (iwl_mvm_vif_low_latency(mvmvif) && !data->low_latency[id]) {
84 data->n_low_latency_bindings++;
85 data->low_latency[id] = true;
86 }
87}
88
89static void iwl_mvm_adjust_quota_for_noa(struct iwl_mvm *mvm,
90 struct iwl_time_quota_cmd *cmd)
91{
92#ifdef CONFIG_NL80211_TESTMODE
93 struct iwl_mvm_vif *mvmvif;
94 int i, phy_id = -1, beacon_int = 0;
95
96 if (!mvm->noa_duration || !mvm->noa_vif)
97 return;
98
99 mvmvif = iwl_mvm_vif_from_mac80211(mvm->noa_vif);
100 if (!mvmvif->ap_ibss_active)
101 return;
102
103 phy_id = mvmvif->deflink.phy_ctxt->id;
104 beacon_int = mvm->noa_vif->bss_conf.beacon_int;
105
106 for (i = 0; i < MAX_BINDINGS; i++) {
107 struct iwl_time_quota_data *data =
108 iwl_mvm_quota_cmd_get_quota(mvm, cmd,
109 i);
110 u32 id_n_c = le32_to_cpu(data->id_and_color);
111 u32 id = (id_n_c & FW_CTXT_ID_MSK) >> FW_CTXT_ID_POS;
112 u32 quota = le32_to_cpu(data->quota);
113
114 if (id != phy_id)
115 continue;
116
117 quota *= (beacon_int - mvm->noa_duration);
118 quota /= beacon_int;
119
120 IWL_DEBUG_QUOTA(mvm, "quota: adjust for NoA from %d to %d\n",
121 le32_to_cpu(data->quota), quota);
122
123 data->quota = cpu_to_le32(quota);
124 }
125#endif
126}
127
128int iwl_mvm_update_quotas(struct iwl_mvm *mvm,
129 bool force_update,
130 struct ieee80211_vif *disabled_vif)
131{
132 struct iwl_time_quota_cmd cmd = {};
133 int i, idx, err, num_active_macs, quota, quota_rem, n_non_lowlat;
134 struct iwl_mvm_quota_iterator_data data = {
135 .n_interfaces = {},
136 .colors = { -1, -1, -1, -1 },
137 .disabled_vif = disabled_vif,
138 };
139 struct iwl_time_quota_cmd *last = &mvm->last_quota_cmd;
140 struct iwl_time_quota_data *qdata, *last_data;
141 bool send = false;
142
143 lockdep_assert_held(&mvm->mutex);
144
145 if (fw_has_capa(&mvm->fw->ucode_capa,
146 IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA))
147 return 0;
148
149 /* update all upon completion */
150 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
151 return 0;
152
153 /* iterator data above must match */
154 BUILD_BUG_ON(MAX_BINDINGS != 4);
155
156 ieee80211_iterate_active_interfaces_atomic(
157 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
158 iwl_mvm_quota_iterator, &data);
159
160 /*
161 * The FW's scheduling session consists of
162 * IWL_MVM_MAX_QUOTA fragments. Divide these fragments
163 * equally between all the bindings that require quota
164 */
165 num_active_macs = 0;
166 for (i = 0; i < MAX_BINDINGS; i++) {
167 qdata = iwl_mvm_quota_cmd_get_quota(mvm, &cmd, i);
168 qdata->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
169 num_active_macs += data.n_interfaces[i];
170 }
171
172 n_non_lowlat = num_active_macs;
173
174 if (data.n_low_latency_bindings == 1) {
175 for (i = 0; i < MAX_BINDINGS; i++) {
176 if (data.low_latency[i]) {
177 n_non_lowlat -= data.n_interfaces[i];
178 break;
179 }
180 }
181 }
182
183 if (data.n_low_latency_bindings == 1 && n_non_lowlat) {
184 /*
185 * Reserve quota for the low latency binding in case that
186 * there are several data bindings but only a single
187 * low latency one. Split the rest of the quota equally
188 * between the other data interfaces.
189 */
190 quota = (QUOTA_100 - QUOTA_LOWLAT_MIN) / n_non_lowlat;
191 quota_rem = QUOTA_100 - n_non_lowlat * quota -
192 QUOTA_LOWLAT_MIN;
193 IWL_DEBUG_QUOTA(mvm,
194 "quota: low-latency binding active, remaining quota per other binding: %d\n",
195 quota);
196 } else if (num_active_macs) {
197 /*
198 * There are 0 or more than 1 low latency bindings, or all the
199 * data interfaces belong to the single low latency binding.
200 * Split the quota equally between the data interfaces.
201 */
202 quota = QUOTA_100 / num_active_macs;
203 quota_rem = QUOTA_100 % num_active_macs;
204 IWL_DEBUG_QUOTA(mvm,
205 "quota: splitting evenly per binding: %d\n",
206 quota);
207 } else {
208 /* values don't really matter - won't be used */
209 quota = 0;
210 quota_rem = 0;
211 }
212
213 for (idx = 0, i = 0; i < MAX_BINDINGS; i++) {
214 if (data.colors[i] < 0)
215 continue;
216
217 qdata = iwl_mvm_quota_cmd_get_quota(mvm, &cmd, idx);
218
219 qdata->id_and_color =
220 cpu_to_le32(FW_CMD_ID_AND_COLOR(i, data.colors[i]));
221
222 if (data.n_interfaces[i] <= 0)
223 qdata->quota = cpu_to_le32(0);
224#ifdef CONFIG_IWLWIFI_DEBUGFS
225 else if (data.dbgfs_min[i])
226 qdata->quota =
227 cpu_to_le32(data.dbgfs_min[i] * QUOTA_100 / 100);
228#endif
229 else if (data.n_low_latency_bindings == 1 && n_non_lowlat &&
230 data.low_latency[i])
231 /*
232 * There is more than one binding, but only one of the
233 * bindings is in low latency. For this case, allocate
234 * the minimal required quota for the low latency
235 * binding.
236 */
237 qdata->quota = cpu_to_le32(QUOTA_LOWLAT_MIN);
238 else
239 qdata->quota =
240 cpu_to_le32(quota * data.n_interfaces[i]);
241
242 WARN_ONCE(le32_to_cpu(qdata->quota) > QUOTA_100,
243 "Binding=%d, quota=%u > max=%u\n",
244 idx, le32_to_cpu(qdata->quota), QUOTA_100);
245
246 qdata->max_duration = cpu_to_le32(0);
247
248 idx++;
249 }
250
251 /* Give the remainder of the session to the first data binding */
252 for (i = 0; i < MAX_BINDINGS; i++) {
253 qdata = iwl_mvm_quota_cmd_get_quota(mvm, &cmd, i);
254 if (le32_to_cpu(qdata->quota) != 0) {
255 le32_add_cpu(&qdata->quota, quota_rem);
256 IWL_DEBUG_QUOTA(mvm,
257 "quota: giving remainder of %d to binding %d\n",
258 quota_rem, i);
259 break;
260 }
261 }
262
263 iwl_mvm_adjust_quota_for_noa(mvm, &cmd);
264
265 /* check that we have non-zero quota for all valid bindings */
266 for (i = 0; i < MAX_BINDINGS; i++) {
267 qdata = iwl_mvm_quota_cmd_get_quota(mvm, &cmd, i);
268 last_data = iwl_mvm_quota_cmd_get_quota(mvm, last, i);
269 if (qdata->id_and_color != last_data->id_and_color)
270 send = true;
271 if (qdata->max_duration != last_data->max_duration)
272 send = true;
273 if (abs((int)le32_to_cpu(qdata->quota) -
274 (int)le32_to_cpu(last_data->quota))
275 > IWL_MVM_QUOTA_THRESHOLD)
276 send = true;
277 if (qdata->id_and_color == cpu_to_le32(FW_CTXT_INVALID))
278 continue;
279 WARN_ONCE(qdata->quota == 0,
280 "zero quota on binding %d\n", i);
281 }
282
283 if (!send && !force_update) {
284 /* don't send a practically unchanged command, the firmware has
285 * to re-initialize a lot of state and that can have an adverse
286 * impact on it
287 */
288 return 0;
289 }
290
291 err = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
292 iwl_mvm_quota_cmd_size(mvm), &cmd);
293
294 if (err)
295 IWL_ERR(mvm, "Failed to send quota: %d\n", err);
296 else
297 mvm->last_quota_cmd = cmd;
298 return err;
299}
1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 Intel Deutschland GmbH
38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 *
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
49 * distribution.
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *
66 *****************************************************************************/
67
68#include <net/mac80211.h>
69#include "fw-api.h"
70#include "mvm.h"
71
72#define QUOTA_100 IWL_MVM_MAX_QUOTA
73#define QUOTA_LOWLAT_MIN ((QUOTA_100 * IWL_MVM_LOWLAT_QUOTA_MIN_PERCENT) / 100)
74
75struct iwl_mvm_quota_iterator_data {
76 int n_interfaces[MAX_BINDINGS];
77 int colors[MAX_BINDINGS];
78 int low_latency[MAX_BINDINGS];
79#ifdef CONFIG_IWLWIFI_DEBUGFS
80 int dbgfs_min[MAX_BINDINGS];
81#endif
82 int n_low_latency_bindings;
83 struct ieee80211_vif *disabled_vif;
84};
85
86static void iwl_mvm_quota_iterator(void *_data, u8 *mac,
87 struct ieee80211_vif *vif)
88{
89 struct iwl_mvm_quota_iterator_data *data = _data;
90 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
91 u16 id;
92
93 /* skip disabled interfaces here immediately */
94 if (vif == data->disabled_vif)
95 return;
96
97 if (!mvmvif->phy_ctxt)
98 return;
99
100 /* currently, PHY ID == binding ID */
101 id = mvmvif->phy_ctxt->id;
102
103 /* need at least one binding per PHY */
104 BUILD_BUG_ON(NUM_PHY_CTX > MAX_BINDINGS);
105
106 if (WARN_ON_ONCE(id >= MAX_BINDINGS))
107 return;
108
109 switch (vif->type) {
110 case NL80211_IFTYPE_STATION:
111 if (vif->bss_conf.assoc)
112 break;
113 return;
114 case NL80211_IFTYPE_AP:
115 case NL80211_IFTYPE_ADHOC:
116 if (mvmvif->ap_ibss_active)
117 break;
118 return;
119 case NL80211_IFTYPE_MONITOR:
120 if (mvmvif->monitor_active)
121 break;
122 return;
123 case NL80211_IFTYPE_P2P_DEVICE:
124 return;
125 default:
126 WARN_ON_ONCE(1);
127 return;
128 }
129
130 if (data->colors[id] < 0)
131 data->colors[id] = mvmvif->phy_ctxt->color;
132 else
133 WARN_ON_ONCE(data->colors[id] != mvmvif->phy_ctxt->color);
134
135 data->n_interfaces[id]++;
136
137#ifdef CONFIG_IWLWIFI_DEBUGFS
138 if (mvmvif->dbgfs_quota_min)
139 data->dbgfs_min[id] = max(data->dbgfs_min[id],
140 mvmvif->dbgfs_quota_min);
141#endif
142
143 if (iwl_mvm_vif_low_latency(mvmvif) && !data->low_latency[id]) {
144 data->n_low_latency_bindings++;
145 data->low_latency[id] = true;
146 }
147}
148
149static void iwl_mvm_adjust_quota_for_noa(struct iwl_mvm *mvm,
150 struct iwl_time_quota_cmd *cmd)
151{
152#ifdef CONFIG_NL80211_TESTMODE
153 struct iwl_mvm_vif *mvmvif;
154 int i, phy_id = -1, beacon_int = 0;
155
156 if (!mvm->noa_duration || !mvm->noa_vif)
157 return;
158
159 mvmvif = iwl_mvm_vif_from_mac80211(mvm->noa_vif);
160 if (!mvmvif->ap_ibss_active)
161 return;
162
163 phy_id = mvmvif->phy_ctxt->id;
164 beacon_int = mvm->noa_vif->bss_conf.beacon_int;
165
166 for (i = 0; i < MAX_BINDINGS; i++) {
167 u32 id_n_c = le32_to_cpu(cmd->quotas[i].id_and_color);
168 u32 id = (id_n_c & FW_CTXT_ID_MSK) >> FW_CTXT_ID_POS;
169 u32 quota = le32_to_cpu(cmd->quotas[i].quota);
170
171 if (id != phy_id)
172 continue;
173
174 quota *= (beacon_int - mvm->noa_duration);
175 quota /= beacon_int;
176
177 IWL_DEBUG_QUOTA(mvm, "quota: adjust for NoA from %d to %d\n",
178 le32_to_cpu(cmd->quotas[i].quota), quota);
179
180 cmd->quotas[i].quota = cpu_to_le32(quota);
181 }
182#endif
183}
184
185int iwl_mvm_update_quotas(struct iwl_mvm *mvm,
186 bool force_update,
187 struct ieee80211_vif *disabled_vif)
188{
189 struct iwl_time_quota_cmd cmd = {};
190 int i, idx, err, num_active_macs, quota, quota_rem, n_non_lowlat;
191 struct iwl_mvm_quota_iterator_data data = {
192 .n_interfaces = {},
193 .colors = { -1, -1, -1, -1 },
194 .disabled_vif = disabled_vif,
195 };
196 struct iwl_time_quota_cmd *last = &mvm->last_quota_cmd;
197 bool send = false;
198
199 lockdep_assert_held(&mvm->mutex);
200
201 /* update all upon completion */
202 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
203 return 0;
204
205 /* iterator data above must match */
206 BUILD_BUG_ON(MAX_BINDINGS != 4);
207
208 ieee80211_iterate_active_interfaces_atomic(
209 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
210 iwl_mvm_quota_iterator, &data);
211
212 /*
213 * The FW's scheduling session consists of
214 * IWL_MVM_MAX_QUOTA fragments. Divide these fragments
215 * equally between all the bindings that require quota
216 */
217 num_active_macs = 0;
218 for (i = 0; i < MAX_BINDINGS; i++) {
219 cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID);
220 num_active_macs += data.n_interfaces[i];
221 }
222
223 n_non_lowlat = num_active_macs;
224
225 if (data.n_low_latency_bindings == 1) {
226 for (i = 0; i < MAX_BINDINGS; i++) {
227 if (data.low_latency[i]) {
228 n_non_lowlat -= data.n_interfaces[i];
229 break;
230 }
231 }
232 }
233
234 if (data.n_low_latency_bindings == 1 && n_non_lowlat) {
235 /*
236 * Reserve quota for the low latency binding in case that
237 * there are several data bindings but only a single
238 * low latency one. Split the rest of the quota equally
239 * between the other data interfaces.
240 */
241 quota = (QUOTA_100 - QUOTA_LOWLAT_MIN) / n_non_lowlat;
242 quota_rem = QUOTA_100 - n_non_lowlat * quota -
243 QUOTA_LOWLAT_MIN;
244 IWL_DEBUG_QUOTA(mvm,
245 "quota: low-latency binding active, remaining quota per other binding: %d\n",
246 quota);
247 } else if (num_active_macs) {
248 /*
249 * There are 0 or more than 1 low latency bindings, or all the
250 * data interfaces belong to the single low latency binding.
251 * Split the quota equally between the data interfaces.
252 */
253 quota = QUOTA_100 / num_active_macs;
254 quota_rem = QUOTA_100 % num_active_macs;
255 IWL_DEBUG_QUOTA(mvm,
256 "quota: splitting evenly per binding: %d\n",
257 quota);
258 } else {
259 /* values don't really matter - won't be used */
260 quota = 0;
261 quota_rem = 0;
262 }
263
264 for (idx = 0, i = 0; i < MAX_BINDINGS; i++) {
265 if (data.colors[i] < 0)
266 continue;
267
268 cmd.quotas[idx].id_and_color =
269 cpu_to_le32(FW_CMD_ID_AND_COLOR(i, data.colors[i]));
270
271 if (data.n_interfaces[i] <= 0)
272 cmd.quotas[idx].quota = cpu_to_le32(0);
273#ifdef CONFIG_IWLWIFI_DEBUGFS
274 else if (data.dbgfs_min[i])
275 cmd.quotas[idx].quota =
276 cpu_to_le32(data.dbgfs_min[i] * QUOTA_100 / 100);
277#endif
278 else if (data.n_low_latency_bindings == 1 && n_non_lowlat &&
279 data.low_latency[i])
280 /*
281 * There is more than one binding, but only one of the
282 * bindings is in low latency. For this case, allocate
283 * the minimal required quota for the low latency
284 * binding.
285 */
286 cmd.quotas[idx].quota = cpu_to_le32(QUOTA_LOWLAT_MIN);
287 else
288 cmd.quotas[idx].quota =
289 cpu_to_le32(quota * data.n_interfaces[i]);
290
291 WARN_ONCE(le32_to_cpu(cmd.quotas[idx].quota) > QUOTA_100,
292 "Binding=%d, quota=%u > max=%u\n",
293 idx, le32_to_cpu(cmd.quotas[idx].quota), QUOTA_100);
294
295 cmd.quotas[idx].max_duration = cpu_to_le32(0);
296
297 idx++;
298 }
299
300 /* Give the remainder of the session to the first data binding */
301 for (i = 0; i < MAX_BINDINGS; i++) {
302 if (le32_to_cpu(cmd.quotas[i].quota) != 0) {
303 le32_add_cpu(&cmd.quotas[i].quota, quota_rem);
304 IWL_DEBUG_QUOTA(mvm,
305 "quota: giving remainder of %d to binding %d\n",
306 quota_rem, i);
307 break;
308 }
309 }
310
311 iwl_mvm_adjust_quota_for_noa(mvm, &cmd);
312
313 /* check that we have non-zero quota for all valid bindings */
314 for (i = 0; i < MAX_BINDINGS; i++) {
315 if (cmd.quotas[i].id_and_color != last->quotas[i].id_and_color)
316 send = true;
317 if (cmd.quotas[i].max_duration != last->quotas[i].max_duration)
318 send = true;
319 if (abs((int)le32_to_cpu(cmd.quotas[i].quota) -
320 (int)le32_to_cpu(last->quotas[i].quota))
321 > IWL_MVM_QUOTA_THRESHOLD)
322 send = true;
323 if (cmd.quotas[i].id_and_color == cpu_to_le32(FW_CTXT_INVALID))
324 continue;
325 WARN_ONCE(cmd.quotas[i].quota == 0,
326 "zero quota on binding %d\n", i);
327 }
328
329 if (!send && !force_update) {
330 /* don't send a practically unchanged command, the firmware has
331 * to re-initialize a lot of state and that can have an adverse
332 * impact on it
333 */
334 return 0;
335 }
336
337 err = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, sizeof(cmd), &cmd);
338
339 if (err)
340 IWL_ERR(mvm, "Failed to send quota: %d\n", err);
341 else
342 mvm->last_quota_cmd = cmd;
343 return err;
344}