1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
2 /*
3 * Copyright (C) 2024-2025 Intel Corporation
4 */
5 #ifndef __iwl_mld_scan_h__
6 #define __iwl_mld_scan_h__
7
8 int iwl_mld_alloc_scan_cmd(struct iwl_mld *mld);
9
10 int iwl_mld_regular_scan_start(struct iwl_mld *mld, struct ieee80211_vif *vif,
11 struct cfg80211_scan_request *req,
12 struct ieee80211_scan_ies *ies);
13
14 void iwl_mld_int_mlo_scan(struct iwl_mld *mld, struct ieee80211_vif *vif);
15
16 void iwl_mld_handle_scan_iter_complete_notif(struct iwl_mld *mld,
17 struct iwl_rx_packet *pkt);
18
19 int iwl_mld_scan_stop(struct iwl_mld *mld, int type, bool notify);
20
21 int iwl_mld_sched_scan_start(struct iwl_mld *mld,
22 struct ieee80211_vif *vif,
23 struct cfg80211_sched_scan_request *req,
24 struct ieee80211_scan_ies *ies,
25 int type);
26
27 void iwl_mld_handle_match_found_notif(struct iwl_mld *mld,
28 struct iwl_rx_packet *pkt);
29
30 void iwl_mld_handle_scan_start_notif(struct iwl_mld *mld,
31 struct iwl_rx_packet *pkt);
32
33 void iwl_mld_handle_scan_complete_notif(struct iwl_mld *mld,
34 struct iwl_rx_packet *pkt);
35
36 int iwl_mld_mac80211_get_survey(struct ieee80211_hw *hw, int idx,
37 struct survey_info *survey);
38
39 void iwl_mld_handle_channel_survey_notif(struct iwl_mld *mld,
40 struct iwl_rx_packet *pkt);
41
42 #define WFA_TPC_IE_LEN 9
43
iwl_mld_scan_max_template_size(void)44 static inline int iwl_mld_scan_max_template_size(void)
45 {
46 #define MAC_HDR_LEN 24
47 #define DS_IE_LEN 3
48 #define SSID_IE_LEN 2
49
50 /* driver create the 802.11 header, WFA TPC IE, DS parameter and SSID IE */
51 #define DRIVER_TOTAL_IES_LEN \
52 (MAC_HDR_LEN + WFA_TPC_IE_LEN + DS_IE_LEN + SSID_IE_LEN)
53
54 BUILD_BUG_ON(SCAN_OFFLOAD_PROBE_REQ_SIZE < DRIVER_TOTAL_IES_LEN);
55
56 return SCAN_OFFLOAD_PROBE_REQ_SIZE - DRIVER_TOTAL_IES_LEN;
57 }
58
59 void iwl_mld_report_scan_aborted(struct iwl_mld *mld);
60
61 enum iwl_mld_scan_status {
62 IWL_MLD_SCAN_NONE = 0,
63 IWL_MLD_SCAN_REGULAR = BIT(0),
64 IWL_MLD_SCAN_SCHED = BIT(1),
65 IWL_MLD_SCAN_NETDETECT = BIT(2),
66 IWL_MLD_SCAN_INT_MLO = BIT(3),
67 };
68
69 /* enum iwl_mld_pass_all_sched_results_states - Defines the states for
70 * handling/passing scheduled scan results to mac80211
71 * @SCHED_SCAN_PASS_ALL_STATE_DISABLED: Don't pass all scan results, only when
72 * a match found.
73 * @SCHED_SCAN_PASS_ALL_STATE_ENABLED: Pass all scan results is enabled
74 * (no filtering).
75 * @SCHED_SCAN_PASS_ALL_STATE_FOUND: A scan result is found, pass it on the
76 * next scan iteration complete notification.
77 */
78 enum iwl_mld_pass_all_sched_results_states {
79 SCHED_SCAN_PASS_ALL_STATE_DISABLED,
80 SCHED_SCAN_PASS_ALL_STATE_ENABLED,
81 SCHED_SCAN_PASS_ALL_STATE_FOUND,
82 };
83
84 /**
85 * enum iwl_mld_traffic_load - Levels of traffic load
86 *
87 * @IWL_MLD_TRAFFIC_LOW: low traffic load
88 * @IWL_MLD_TRAFFIC_MEDIUM: medium traffic load
89 * @IWL_MLD_TRAFFIC_HIGH: high traffic load
90 */
91 enum iwl_mld_traffic_load {
92 IWL_MLD_TRAFFIC_LOW,
93 IWL_MLD_TRAFFIC_MEDIUM,
94 IWL_MLD_TRAFFIC_HIGH,
95 };
96
97 /**
98 * struct iwl_mld_scan - Scan data
99 * @status: scan status, a combination of %enum iwl_mld_scan_status,
100 * reflects the %scan.uid_status array.
101 * @uid_status: array to track the scan status per uid.
102 * @start_tsf: start time of last scan in TSF of the link that requested
103 * the scan.
104 * @last_ebs_failed: true if the last EBS (Energy Based Scan) failed.
105 * @pass_all_sched_res: see %enum iwl_mld_pass_all_sched_results_states.
106 * @fw_link_id: the current (regular) scan fw link id, used by scan
107 * complete notif.
108 * @traffic_load: traffic load related data
109 * @traffic_load.last_stats_ts_usec: The timestamp of the last statistics
110 * notification, used to calculate the elapsed time between two
111 * notifications and determine the traffic load
112 * @traffic_load.status: The current traffic load status, see
113 * &enum iwl_mld_traffic_load
114 * @cmd_size: size of %cmd.
115 * @cmd: pointer to scan cmd buffer (allocated once in op mode start).
116 * @last_6ghz_passive_jiffies: stores the last 6GHz passive scan time
117 * in jiffies.
118 * @last_start_time_jiffies: stores the last start time in jiffies
119 * (interface up/reset/resume).
120 * @last_mlo_scan_start_time: start time of the last MLO scan in nanoseconds
121 * since boot.
122 */
123 struct iwl_mld_scan {
124 /* Add here fields that need clean up on restart */
125 struct_group(zeroed_on_hw_restart,
126 unsigned int status;
127 u32 uid_status[IWL_MAX_UMAC_SCANS];
128 u64 start_tsf;
129 bool last_ebs_failed;
130 enum iwl_mld_pass_all_sched_results_states pass_all_sched_res;
131 u8 fw_link_id;
132 struct {
133 u32 last_stats_ts_usec;
134 enum iwl_mld_traffic_load status;
135 } traffic_load;
136 );
137 /* And here fields that survive a fw restart */
138 size_t cmd_size;
139 void *cmd;
140 unsigned long last_6ghz_passive_jiffies;
141 unsigned long last_start_time_jiffies;
142 u64 last_mlo_scan_start_time;
143 };
144
145 /**
146 * struct iwl_mld_survey_channel - per-channel survey information
147 *
148 * Driver version of &struct survey_info with just the data we want to report.
149 *
150 * @time: time in ms the radio was on the channel
151 * @time_busy: time in ms the channel was sensed busy
152 * @noise: channel noise in dBm
153 */
154 struct iwl_mld_survey_channel {
155 u32 time;
156 u32 time_busy;
157 s8 noise;
158 };
159
160 /**
161 * struct iwl_mld_survey - survey information
162 *
163 * Survey information for all available channels.
164 *
165 * @bands: per-band array for per-channel survey data, points into @channels
166 * @n_channels: Number of @channels entries that are allocated
167 * @channels: per-channel information
168 */
169 struct iwl_mld_survey {
170 struct iwl_mld_survey_channel *bands[NUM_NL80211_BANDS];
171
172 int n_channels;
173 struct iwl_mld_survey_channel channels[] __counted_by(n_channels);
174 };
175
176 #endif /* __iwl_mld_scan_h__ */
177