1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
* Copyright (C) 2024-2025 Intel Corporation
*/
#ifndef __iwl_mld_link_h__
#define __iwl_mld_link_h__
#include <net/mac80211.h>
#include "mld.h"
#include "sta.h"
/**
* struct iwl_probe_resp_data - data for NoA/CSA updates
* @rcu_head: used for freeing the data on update
* @notif: notification data
* @noa_len: length of NoA attribute, calculated from the notification
*/
struct iwl_probe_resp_data {
struct rcu_head rcu_head;
struct iwl_probe_resp_data_notif notif;
int noa_len;
};
/**
* struct iwl_mld_link - link configuration parameters
*
* @rcu_head: RCU head for freeing this data.
* @fw_id: the fw id of the link.
* @active: if the link is active or not.
* @queue_params: QoS data from mac80211. This is updated with a call to
* drv_conf_tx per each AC, and then notified once with BSS_CHANGED_QOS.
* So we store it here and then send one link cmd for all the ACs.
* @chan_ctx: pointer to the channel context assigned to the link. If a link
* has an assigned channel context it means that it is active.
* @he_ru_2mhz_block: 26-tone RU OFDMA transmissions should be blocked.
* @igtk: fw can only have one IGTK at a time, whereas mac80211 can have two.
* This tracks the one IGTK that currently exists in FW.
* @vif: the vif this link belongs to
* @bcast_sta: station used for broadcast packets. Used in AP, GO and IBSS.
* @mcast_sta: station used for multicast packets. Used in AP, GO and IBSS.
* @aux_sta: station used for remain on channel. Used in P2P device.
* @link_id: over the air link ID
* @ap_early_keys: The firmware cannot install keys before bcast/mcast STAs,
* but higher layers work differently, so we store the keys here for
* later installation.
* @silent_deactivation: next deactivation needs to be silent.
* @probe_resp_data: data from FW notification to store NOA related data to be
* inserted into probe response.
* @rx_omi: data for BW reduction with OMI
* @rx_omi.bw_in_progress: update is in progress (indicates target BW)
* @rx_omi.exit_ts: timestamp of last exit
* @rx_omi.finished_work: work for the delayed reaction to the firmware saying
* the change was applied, and for then applying a new mode if it was
* updated while waiting for firmware/AP settle delay.
* @rx_omi.desired_bw: desired bandwidth
* @rx_omi.last_max_bw: last maximum BW used by firmware, for AP BW changes
*/
struct iwl_mld_link {
struct rcu_head rcu_head;
/* Add here fields that need clean up on restart */
struct_group(zeroed_on_hw_restart,
u8 fw_id;
bool active;
struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
struct ieee80211_chanctx_conf __rcu *chan_ctx;
bool he_ru_2mhz_block;
struct ieee80211_key_conf *igtk;
);
/* And here fields that survive a fw restart */
struct ieee80211_vif *vif;
struct iwl_mld_int_sta bcast_sta;
struct iwl_mld_int_sta mcast_sta;
struct iwl_mld_int_sta aux_sta;
u8 link_id;
struct {
struct wiphy_delayed_work finished_work;
unsigned long exit_ts;
enum ieee80211_sta_rx_bandwidth bw_in_progress,
desired_bw,
last_max_bw;
} rx_omi;
/* we can only have 2 GTK + 2 IGTK + 2 BIGTK active at a time */
struct ieee80211_key_conf *ap_early_keys[6];
bool silent_deactivation;
struct iwl_probe_resp_data __rcu *probe_resp_data;
};
/* Cleanup function for struct iwl_mld_phy, will be called in restart */
static inline void
iwl_mld_cleanup_link(struct iwl_mld *mld, struct iwl_mld_link *link)
{
struct iwl_probe_resp_data *probe_data;
probe_data = wiphy_dereference(mld->wiphy, link->probe_resp_data);
RCU_INIT_POINTER(link->probe_resp_data, NULL);
if (probe_data)
kfree_rcu(probe_data, rcu_head);
CLEANUP_STRUCT(link);
if (link->bcast_sta.sta_id != IWL_INVALID_STA)
iwl_mld_free_internal_sta(mld, &link->bcast_sta);
if (link->mcast_sta.sta_id != IWL_INVALID_STA)
iwl_mld_free_internal_sta(mld, &link->mcast_sta);
if (link->aux_sta.sta_id != IWL_INVALID_STA)
iwl_mld_free_internal_sta(mld, &link->aux_sta);
}
/* Convert a percentage from [0,100] to [0,255] */
#define NORMALIZE_PERCENT_TO_255(percentage) ((percentage) * 256 / 100)
int iwl_mld_add_link(struct iwl_mld *mld,
struct ieee80211_bss_conf *bss_conf);
void iwl_mld_remove_link(struct iwl_mld *mld,
struct ieee80211_bss_conf *bss_conf);
int iwl_mld_activate_link(struct iwl_mld *mld,
struct ieee80211_bss_conf *link);
void iwl_mld_deactivate_link(struct iwl_mld *mld,
struct ieee80211_bss_conf *link);
int iwl_mld_change_link_omi_bw(struct iwl_mld *mld,
struct ieee80211_bss_conf *link,
enum ieee80211_sta_rx_bandwidth bw);
int iwl_mld_change_link_in_fw(struct iwl_mld *mld,
struct ieee80211_bss_conf *link, u32 changes);
void iwl_mld_handle_missed_beacon_notif(struct iwl_mld *mld,
struct iwl_rx_packet *pkt);
bool iwl_mld_cancel_missed_beacon_notif(struct iwl_mld *mld,
struct iwl_rx_packet *pkt,
u32 removed_link_id);
int iwl_mld_link_set_associated(struct iwl_mld *mld, struct ieee80211_vif *vif,
struct ieee80211_bss_conf *link);
unsigned int iwl_mld_get_link_grade(struct iwl_mld *mld,
struct ieee80211_bss_conf *link_conf);
unsigned int iwl_mld_get_chan_load(struct iwl_mld *mld,
struct ieee80211_bss_conf *link_conf);
int iwl_mld_get_chan_load_by_others(struct iwl_mld *mld,
struct ieee80211_bss_conf *link_conf,
bool expect_active_link);
void iwl_mld_handle_omi_status_notif(struct iwl_mld *mld,
struct iwl_rx_packet *pkt);
void iwl_mld_leave_omi_bw_reduction(struct iwl_mld *mld);
void iwl_mld_check_omi_bw_reduction(struct iwl_mld *mld);
void iwl_mld_omi_ap_changed_bw(struct iwl_mld *mld,
struct ieee80211_bss_conf *link_conf,
enum ieee80211_sta_rx_bandwidth bw);
#endif /* __iwl_mld_link_h__ */
|
