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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2022 - 2023 Intel Corporation
4 */
5#include "mvm.h"
6
7static void iwl_mvm_mld_set_he_support(struct iwl_mvm *mvm,
8 struct ieee80211_vif *vif,
9 struct iwl_mac_config_cmd *cmd)
10{
11 if (vif->type == NL80211_IFTYPE_AP)
12 cmd->he_ap_support = cpu_to_le16(1);
13 else
14 cmd->he_support = cpu_to_le16(1);
15}
16
17static void iwl_mvm_mld_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
18 struct ieee80211_vif *vif,
19 struct iwl_mac_config_cmd *cmd,
20 u32 action)
21{
22 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
23 struct ieee80211_bss_conf *link_conf;
24 unsigned int link_id;
25
26 cmd->id_and_color = cpu_to_le32(mvmvif->id);
27 cmd->action = cpu_to_le32(action);
28
29 cmd->mac_type = cpu_to_le32(iwl_mvm_get_mac_type(vif));
30
31 memcpy(cmd->local_mld_addr, vif->addr, ETH_ALEN);
32
33 cmd->he_support = 0;
34 cmd->eht_support = 0;
35
36 /* should be set by specific context type handler */
37 cmd->filter_flags = 0;
38
39 cmd->nic_not_ack_enabled =
40 cpu_to_le32(!iwl_mvm_is_nic_ack_enabled(mvm, vif));
41
42 if (iwlwifi_mod_params.disable_11ax)
43 return;
44
45 /* If we have MLO enabled, then the firmware needs to enable
46 * address translation for the station(s) we add. That depends
47 * on having EHT enabled in firmware, which in turn depends on
48 * mac80211 in the code below.
49 * However, mac80211 doesn't enable HE/EHT until it has parsed
50 * the association response successfully, so just skip all that
51 * and enable both when we have MLO.
52 */
53 if (ieee80211_vif_is_mld(vif)) {
54 iwl_mvm_mld_set_he_support(mvm, vif, cmd);
55 cmd->eht_support = cpu_to_le32(1);
56 return;
57 }
58
59 rcu_read_lock();
60 for (link_id = 0; link_id < ARRAY_SIZE((vif)->link_conf); link_id++) {
61 link_conf = rcu_dereference(vif->link_conf[link_id]);
62 if (!link_conf)
63 continue;
64
65 if (link_conf->he_support)
66 iwl_mvm_mld_set_he_support(mvm, vif, cmd);
67
68 /* it's not reasonable to have EHT without HE and FW API doesn't
69 * support it. Ignore EHT in this case.
70 */
71 if (!link_conf->he_support && link_conf->eht_support)
72 continue;
73
74 if (link_conf->eht_support) {
75 cmd->eht_support = cpu_to_le32(1);
76 break;
77 }
78 }
79 rcu_read_unlock();
80}
81
82static int iwl_mvm_mld_mac_ctxt_send_cmd(struct iwl_mvm *mvm,
83 struct iwl_mac_config_cmd *cmd)
84{
85 int ret = iwl_mvm_send_cmd_pdu(mvm,
86 WIDE_ID(MAC_CONF_GROUP, MAC_CONFIG_CMD),
87 0, sizeof(*cmd), cmd);
88 if (ret)
89 IWL_ERR(mvm, "Failed to send MAC_CONFIG_CMD (action:%d): %d\n",
90 le32_to_cpu(cmd->action), ret);
91 return ret;
92}
93
94static int iwl_mvm_mld_mac_ctxt_cmd_sta(struct iwl_mvm *mvm,
95 struct ieee80211_vif *vif,
96 u32 action, bool force_assoc_off)
97{
98 struct iwl_mac_config_cmd cmd = {};
99 u16 esr_transition_timeout;
100
101 WARN_ON(vif->type != NL80211_IFTYPE_STATION);
102
103 /* Fill the common data for all mac context types */
104 iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
105
106 /*
107 * We always want to hear MCAST frames, if we're not authorized yet,
108 * we'll drop them.
109 */
110 cmd.filter_flags |= cpu_to_le32(MAC_CFG_FILTER_ACCEPT_GRP);
111
112 if (vif->p2p)
113 cmd.client.ctwin =
114 iwl_mvm_mac_ctxt_cmd_p2p_sta_get_oppps_ctwin(mvm, vif);
115
116 if (vif->cfg.assoc && !force_assoc_off) {
117 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
118
119 cmd.client.is_assoc = 1;
120
121 if (!mvmvif->authorized &&
122 fw_has_capa(&mvm->fw->ucode_capa,
123 IWL_UCODE_TLV_CAPA_COEX_HIGH_PRIO))
124 cmd.client.data_policy |=
125 cpu_to_le16(COEX_HIGH_PRIORITY_ENABLE);
126
127 } else {
128 cmd.client.is_assoc = 0;
129
130 /* Allow beacons to pass through as long as we are not
131 * associated, or we do not have dtim period information.
132 */
133 cmd.filter_flags |= cpu_to_le32(MAC_CFG_FILTER_ACCEPT_BEACON);
134 }
135
136 cmd.client.assoc_id = cpu_to_le16(vif->cfg.aid);
137 if (ieee80211_vif_is_mld(vif)) {
138 esr_transition_timeout =
139 u16_get_bits(vif->cfg.eml_cap,
140 IEEE80211_EML_CAP_TRANSITION_TIMEOUT);
141
142 cmd.client.esr_transition_timeout =
143 min_t(u16, IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128TU,
144 esr_transition_timeout);
145 cmd.client.medium_sync_delay =
146 cpu_to_le16(vif->cfg.eml_med_sync_delay);
147 }
148
149 if (vif->probe_req_reg && vif->cfg.assoc && vif->p2p)
150 cmd.filter_flags |= cpu_to_le32(MAC_CFG_FILTER_ACCEPT_PROBE_REQ);
151
152 if (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)
153 cmd.client.data_policy |=
154 cpu_to_le16(iwl_mvm_mac_ctxt_cmd_sta_get_twt_policy(mvm, vif));
155
156 return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
157}
158
159static int iwl_mvm_mld_mac_ctxt_cmd_listener(struct iwl_mvm *mvm,
160 struct ieee80211_vif *vif,
161 u32 action)
162{
163 struct iwl_mac_config_cmd cmd = {};
164
165 WARN_ON(vif->type != NL80211_IFTYPE_MONITOR);
166
167 iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
168
169 cmd.filter_flags = cpu_to_le32(MAC_CFG_FILTER_PROMISC |
170 MAC_FILTER_IN_CONTROL_AND_MGMT |
171 MAC_CFG_FILTER_ACCEPT_BEACON |
172 MAC_CFG_FILTER_ACCEPT_PROBE_REQ |
173 MAC_CFG_FILTER_ACCEPT_GRP);
174
175 return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
176}
177
178static int iwl_mvm_mld_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm,
179 struct ieee80211_vif *vif,
180 u32 action)
181{
182 struct iwl_mac_config_cmd cmd = {};
183
184 WARN_ON(vif->type != NL80211_IFTYPE_ADHOC);
185
186 iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
187
188 cmd.filter_flags = cpu_to_le32(MAC_CFG_FILTER_ACCEPT_BEACON |
189 MAC_CFG_FILTER_ACCEPT_PROBE_REQ |
190 MAC_CFG_FILTER_ACCEPT_GRP);
191
192 return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
193}
194
195static int iwl_mvm_mld_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm,
196 struct ieee80211_vif *vif,
197 u32 action)
198{
199 struct iwl_mac_config_cmd cmd = {};
200
201 WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE);
202
203 iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
204
205 cmd.p2p_dev.is_disc_extended =
206 iwl_mac_ctxt_p2p_dev_has_extended_disc(mvm, vif);
207
208 /* Override the filter flags to accept only probe requests */
209 cmd.filter_flags = cpu_to_le32(MAC_CFG_FILTER_ACCEPT_PROBE_REQ);
210
211 return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
212}
213
214static int iwl_mvm_mld_mac_ctxt_cmd_ap_go(struct iwl_mvm *mvm,
215 struct ieee80211_vif *vif,
216 u32 action)
217{
218 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
219 struct iwl_mac_config_cmd cmd = {};
220
221 WARN_ON(vif->type != NL80211_IFTYPE_AP);
222
223 /* Fill the common data for all mac context types */
224 iwl_mvm_mld_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
225
226 iwl_mvm_mac_ctxt_cmd_ap_set_filter_flags(mvm, mvmvif,
227 &cmd.filter_flags,
228 MAC_CFG_FILTER_ACCEPT_PROBE_REQ,
229 MAC_CFG_FILTER_ACCEPT_BEACON);
230
231 return iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
232}
233
234static int iwl_mvm_mld_mac_ctx_send(struct iwl_mvm *mvm,
235 struct ieee80211_vif *vif,
236 u32 action, bool force_assoc_off)
237{
238 switch (vif->type) {
239 case NL80211_IFTYPE_STATION:
240 return iwl_mvm_mld_mac_ctxt_cmd_sta(mvm, vif, action,
241 force_assoc_off);
242 case NL80211_IFTYPE_AP:
243 return iwl_mvm_mld_mac_ctxt_cmd_ap_go(mvm, vif, action);
244 case NL80211_IFTYPE_MONITOR:
245 return iwl_mvm_mld_mac_ctxt_cmd_listener(mvm, vif, action);
246 case NL80211_IFTYPE_P2P_DEVICE:
247 return iwl_mvm_mld_mac_ctxt_cmd_p2p_device(mvm, vif, action);
248 case NL80211_IFTYPE_ADHOC:
249 return iwl_mvm_mld_mac_ctxt_cmd_ibss(mvm, vif, action);
250 default:
251 break;
252 }
253
254 return -EOPNOTSUPP;
255}
256
257int iwl_mvm_mld_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
258{
259 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
260 int ret;
261
262 if (WARN_ON_ONCE(vif->type == NL80211_IFTYPE_NAN))
263 return -EOPNOTSUPP;
264
265 if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n",
266 vif->addr, ieee80211_vif_type_p2p(vif)))
267 return -EIO;
268
269 ret = iwl_mvm_mld_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD,
270 true);
271 if (ret)
272 return ret;
273
274 /* will only do anything at resume from D3 time */
275 iwl_mvm_set_last_nonqos_seq(mvm, vif);
276
277 mvmvif->uploaded = true;
278 return 0;
279}
280
281int iwl_mvm_mld_mac_ctxt_changed(struct iwl_mvm *mvm,
282 struct ieee80211_vif *vif,
283 bool force_assoc_off)
284{
285 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
286
287 if (WARN_ON_ONCE(vif->type == NL80211_IFTYPE_NAN))
288 return -EOPNOTSUPP;
289
290 if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n",
291 vif->addr, ieee80211_vif_type_p2p(vif)))
292 return -EIO;
293
294 return iwl_mvm_mld_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY,
295 force_assoc_off);
296}
297
298int iwl_mvm_mld_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
299{
300 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
301 struct iwl_mac_config_cmd cmd = {
302 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
303 .id_and_color = cpu_to_le32(mvmvif->id),
304 };
305 int ret;
306
307 if (WARN_ON_ONCE(vif->type == NL80211_IFTYPE_NAN))
308 return -EOPNOTSUPP;
309
310 if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n",
311 vif->addr, ieee80211_vif_type_p2p(vif)))
312 return -EIO;
313
314 ret = iwl_mvm_mld_mac_ctxt_send_cmd(mvm, &cmd);
315 if (ret)
316 return ret;
317
318 mvmvif->uploaded = false;
319
320 return 0;
321}