git.librecmc.org Git - librecmc/librecmc.git/blob

   1 From 2cc25e4b2a04cdd90dbb2916678745565cc4aeed Mon Sep 17 00:00:00 2001
   2 From: Aloka Dixit <quic_alokad@quicinc.com>
   3 Date: Mon, 30 Jan 2023 16:12:27 -0800
   4 Subject: [PATCH] wifi: mac80211: configure puncturing bitmap
   5
   6 - Configure the bitmap in link_conf and notify the driver.
   7 - Modify 'change' in ieee80211_start_ap() from u32 to u64 to support
   8 BSS_CHANGED_EHT_PUNCTURING.
   9 - Propagate the bitmap in channel switch events to userspace.
  10
  11 Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
  12 Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
  13 Link: https://lore.kernel.org/r/20230131001227.25014-5-quic_alokad@quicinc.com
  14 Signed-off-by: Johannes Berg <johannes.berg@intel.com>
  15 ---
  16  include/net/mac80211.h |  3 +++
  17  net/mac80211/cfg.c     | 22 +++++++++++++++++++---
  18  2 files changed, 22 insertions(+), 3 deletions(-)
  19
  20 --- a/include/net/mac80211.h
  21 +++ b/include/net/mac80211.h
  22 @@ -645,6 +645,7 @@ struct ieee80211_fils_discovery {
  23   * @csa_active: marks whether a channel switch is going on. Internally it is
  24   *     write-protected by sdata_lock and local->mtx so holding either is fine
  25   *     for read access.
  26 + * @csa_punct_bitmap: new puncturing bitmap for channel switch
  27   * @mu_mimo_owner: indicates interface owns MU-MIMO capability
  28   * @chanctx_conf: The channel context this interface is assigned to, or %NULL
  29   *     when it is not assigned. This pointer is RCU-protected due to the TX
  30 @@ -744,6 +745,8 @@ struct ieee80211_bss_conf {
  31         u16 eht_puncturing;
  32
  33         bool csa_active;
  34 +       u16 csa_punct_bitmap;
  35 +
  36         bool mu_mimo_owner;
  37         struct ieee80211_chanctx_conf __rcu *chanctx_conf;
  38
  39 --- a/net/mac80211/cfg.c
  40 +++ b/net/mac80211/cfg.c
  41 @@ -1220,7 +1220,7 @@ static int ieee80211_start_ap(struct wip
  42         struct ieee80211_local *local = sdata->local;
  43         struct beacon_data *old;
  44         struct ieee80211_sub_if_data *vlan;
  45 -       u32 changed = BSS_CHANGED_BEACON_INT |
  46 +       u64 changed = BSS_CHANGED_BEACON_INT |
  47                       BSS_CHANGED_BEACON_ENABLED |
  48                       BSS_CHANGED_BEACON |
  49                       BSS_CHANGED_P2P_PS |
  50 @@ -1307,6 +1307,11 @@ static int ieee80211_start_ap(struct wip
  51                                 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
  52         }
  53
  54 +       if (params->eht_cap) {
  55 +               link_conf->eht_puncturing = params->punct_bitmap;
  56 +               changed |= BSS_CHANGED_EHT_PUNCTURING;
  57 +       }
  58 +
  59         if (sdata->vif.type == NL80211_IFTYPE_AP &&
  60             params->mbssid_config.tx_wdev) {
  61                 err = ieee80211_set_ap_mbssid_options(sdata,
  62 @@ -3559,6 +3564,12 @@ static int __ieee80211_csa_finalize(stru
  63         lockdep_assert_held(&local->mtx);
  64         lockdep_assert_held(&local->chanctx_mtx);
  65
  66 +       if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) {
  67 +               sdata->vif.bss_conf.eht_puncturing =
  68 +                                       sdata->vif.bss_conf.csa_punct_bitmap;
  69 +               changed |= BSS_CHANGED_EHT_PUNCTURING;
  70 +       }
  71 +
  72         /*
  73          * using reservation isn't immediate as it may be deferred until later
  74          * with multi-vif. once reservation is complete it will re-schedule the
  75 @@ -3601,7 +3612,7 @@ static int __ieee80211_csa_finalize(stru
  76                 return err;
  77
  78         cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0,
  79 -                                 0);
  80 +                                 sdata->vif.bss_conf.eht_puncturing);
  81
  82         return 0;
  83  }
  84 @@ -3863,9 +3874,13 @@ __ieee80211_channel_switch(struct wiphy
  85                 goto out;
  86         }
  87
  88 +       if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support)
  89 +               goto out;
  90 +
  91         sdata->deflink.csa_chandef = params->chandef;
  92         sdata->deflink.csa_block_tx = params->block_tx;
  93         sdata->vif.bss_conf.csa_active = true;
  94 +       sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap;
  95
  96         if (sdata->deflink.csa_block_tx)
  97                 ieee80211_stop_vif_queues(local, sdata,
  98 @@ -3873,7 +3888,8 @@ __ieee80211_channel_switch(struct wiphy
  99
 100         cfg80211_ch_switch_started_notify(sdata->dev,
 101                                           &sdata->deflink.csa_chandef, 0,
 102 -                                         params->count, params->block_tx, 0);
 103 +                                         params->count, params->block_tx,
 104 +                                         sdata->vif.bss_conf.csa_punct_bitmap);
 105
 106         if (changed) {
 107                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,