From patchwork Thu Jun 6 18:07:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 802300 Received: from nbd.name (nbd.name [46.4.11.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A476199246 for ; Thu, 6 Jun 2024 18:07:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.4.11.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717697240; cv=none; b=pnUjCcoyQaI7yUZ0Giacj5IrvTXn6fTmnGc1R6po14SD7QJ8YZ+bk9QsSdHK/KUJC6DPgl43rAcCO+2IxUHyVqjPTBYE/AsJDuu2ItWN09tvGdAxac1CcoRWGZZa5jZvIxF07WNjDkD/PuZzR8aPkViYruTLPl+2cV1CY31EjZE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717697240; c=relaxed/simple; bh=ln3vek2S85svm980u94ZDrJ52TlgK9iVti/TN9Jf2xI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fNroFxaJkzC9GG1MwaH9iFaxFay+1A/Z/apF4na8tQ0NOlCf8ir2LLr1Pc4l2LOySW429REMyHXhZSI5CCFUQINwnKeS0txPytZTuzE4kRo5foBiwH4B4b6E/lTsmb/on6PQjNMLWTS1UnM981LUj/js8RXvp0Pj4aAsyIS0iCE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nbd.name; spf=none smtp.mailfrom=nbd.name; dkim=pass (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b=n4Yi4l6c; arc=none smtp.client-ip=46.4.11.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nbd.name Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=nbd.name Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b="n4Yi4l6c" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=JbXTarPJPaeXGWkb/A7Gha7UAcTJFtyS+ZWKw9xp0MI=; b=n4Yi4l6cWSoob3o3/m3WZ9eT3x Z3B0bAf6XloUek+xaTsVV5zz+OcklVh+Gn6D5eSm1Q7x+I2SPYHDz2HOH9oTnsIzCvgcWCiMZvb+O hD1kth0j/e6QcVoKR/u4pQvlMM+fp1D6EeKsTCAki1Qsc0/TkEu2BeQ2KHjxrKss2ZHc=; Received: from p4ff130d0.dip0.t-ipconnect.de ([79.241.48.208] helo=localhost.localdomain) by ds12 with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (Exim 4.96) (envelope-from ) id 1sFHW7-008aic-2C; Thu, 06 Jun 2024 20:07:15 +0200 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net, quic_adisi@quicinc.com, quic_periyasa@quicinc.com, ath12k@lists.infradead.org Subject: [RFC v3 6/8] wifi: mac80211: extend ifcomb check functions for multi-radio Date: Thu, 6 Jun 2024 20:07:11 +0200 Message-ID: X-Mailer: git-send-email 2.44.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add support for counting global and per-radio max/current number of channels, as well as checking radio-specific interface combinations. Signed-off-by: Felix Fietkau --- net/mac80211/cfg.c | 7 +- net/mac80211/chan.c | 17 +++-- net/mac80211/ibss.c | 2 +- net/mac80211/ieee80211_i.h | 6 +- net/mac80211/iface.c | 2 +- net/mac80211/util.c | 131 +++++++++++++++++++++++++++----------- 6 files changed, 116 insertions(+), 49 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 62119e957cd8..950b7b72f0b8 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -263,7 +263,7 @@ static int ieee80211_start_p2p_device(struct wiphy *wiphy, lockdep_assert_wiphy(sdata->local->hw.wiphy); - ret = ieee80211_check_combinations(sdata, NULL, 0, 0); + ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); if (ret < 0) return ret; @@ -285,7 +285,7 @@ static int ieee80211_start_nan(struct wiphy *wiphy, lockdep_assert_wiphy(sdata->local->hw.wiphy); - ret = ieee80211_check_combinations(sdata, NULL, 0, 0); + ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); if (ret < 0) return ret; @@ -4001,7 +4001,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, goto out; /* if reservation is invalid then this will fail */ - err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); + err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1); if (err) { ieee80211_link_unreserve_chanctx(link_data); goto out; @@ -5199,4 +5199,5 @@ const struct cfg80211_ops mac80211_config_ops = { .del_link_station = ieee80211_del_link_station, .set_hw_timestamp = ieee80211_set_hw_timestamp, .set_ttlm = ieee80211_set_ttlm, + .get_radio_mask = ieee80211_get_radio_mask, }; diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 574ae961a7cf..0e899c07bc2b 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -47,24 +47,29 @@ int ieee80211_chanctx_refcount(struct ieee80211_local *local, ieee80211_chanctx_num_reserved(local, ctx); } -static int ieee80211_num_chanctx(struct ieee80211_local *local) +static int ieee80211_num_chanctx(struct ieee80211_local *local, int radio_idx) { struct ieee80211_chanctx *ctx; int num = 0; lockdep_assert_wiphy(local->hw.wiphy); - list_for_each_entry(ctx, &local->chanctx_list, list) + list_for_each_entry(ctx, &local->chanctx_list, list) { + if (radio_idx >= 0 && ctx->conf.radio_idx != radio_idx) + continue; num++; + } return num; } -static bool ieee80211_can_create_new_chanctx(struct ieee80211_local *local) +static bool ieee80211_can_create_new_chanctx(struct ieee80211_local *local, + int radio_idx) { lockdep_assert_wiphy(local->hw.wiphy); - return ieee80211_num_chanctx(local) < ieee80211_max_num_channels(local); + return ieee80211_num_chanctx(local, radio_idx) < + ieee80211_max_num_channels(local, radio_idx); } static struct ieee80211_chanctx * @@ -1072,7 +1077,7 @@ int ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, new_ctx = ieee80211_find_reservation_chanctx(local, chanreq, mode); if (!new_ctx) { - if (ieee80211_can_create_new_chanctx(local)) { + if (ieee80211_can_create_new_chanctx(local, -1)) { new_ctx = ieee80211_new_chanctx(local, chanreq, mode, false); if (IS_ERR(new_ctx)) @@ -1767,7 +1772,7 @@ int _ieee80211_link_use_channel(struct ieee80211_link_data *link, link->radar_required = ret; ret = ieee80211_check_combinations(sdata, &chanreq->oper, mode, - radar_detect_width); + radar_detect_width, -1); if (ret < 0) goto out; diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index bf338f3d4dd3..522e964bb186 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -1745,7 +1745,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, IEEE80211_CHANCTX_SHARED : IEEE80211_CHANCTX_EXCLUSIVE; ret = ieee80211_check_combinations(sdata, ¶ms->chandef, chanmode, - radar_detect_width); + radar_detect_width, -1); if (ret < 0) return ret; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 3fd7b1adbfab..33c783432383 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2038,6 +2038,8 @@ static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) { return test_bit(SDATA_STATE_RUNNING, &sdata->state); } +int ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev, + u32 *mask); /* link handling */ void ieee80211_link_setup(struct ieee80211_link_data *link); @@ -2620,8 +2622,8 @@ void ieee80211_recalc_dtim(struct ieee80211_local *local, int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, const struct cfg80211_chan_def *chandef, enum ieee80211_chanctx_mode chanmode, - u8 radar_detect); -int ieee80211_max_num_channels(struct ieee80211_local *local); + u8 radar_detect, int radio_idx); +int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx); void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, struct ieee80211_chanctx *ctx); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index d1a49ee4a194..5dc85f9409cd 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -397,7 +397,7 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata, } } - return ieee80211_check_combinations(sdata, NULL, 0, 0); + return ieee80211_check_combinations(sdata, NULL, 0, 0, -1); } static int ieee80211_check_queues(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 927f752a0209..9a7b70b1553c 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -3928,13 +3928,96 @@ static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, return radar_detect; } +static u32 +__ieee80211_get_radio_mask(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_chanctx_conf *conf; + struct ieee80211_link_data *link; + u32 mask = 0; + + for_each_sdata_link(local, link) { + conf = rcu_dereference(link->conf->chanctx_conf); + if (!conf || conf->radio_idx < 0) + continue; + + mask |= BIT(conf->radio_idx); + } + + return mask; +} + +int ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev, + u32 *mask) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + *mask = __ieee80211_get_radio_mask(sdata); + + return 0; +} + +static bool +ieee80211_sdata_uses_radio(struct ieee80211_sub_if_data *sdata, int radio_idx) +{ + if (radio_idx < 0) + return true; + + return __ieee80211_get_radio_mask(sdata) & BIT(radio_idx); +} + +static void +ieee80211_fill_ifcomb_params(struct ieee80211_local *local, + struct iface_combination_params *params, + const struct cfg80211_chan_def *chandef, + struct ieee80211_sub_if_data *sdata, + int radio_idx) +{ + struct ieee80211_sub_if_data *sdata_iter; + struct ieee80211_chanctx *ctx; + + list_for_each_entry(ctx, &local->chanctx_list, list) { + if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) + continue; + + if (radio_idx >= 0 && ctx->conf.radio_idx != radio_idx) + continue; + + if (chandef && + cfg80211_chandef_compatible(chandef, &ctx->conf.def)) + continue; + + params->num_different_channels++; + + params->radar_detect |= + ieee80211_chanctx_radar_detect(local, ctx); + } + + list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { + struct wireless_dev *wdev_iter; + + wdev_iter = &sdata_iter->wdev; + + if (sdata_iter == sdata || + !ieee80211_sdata_running(sdata_iter) || + cfg80211_iftype_allowed(local->hw.wiphy, + wdev_iter->iftype, 0, 1)) + continue; + + if (!ieee80211_sdata_uses_radio(sdata_iter, radio_idx)) + continue; + + params->iftype_num[wdev_iter->iftype]++; + } +} + int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, const struct cfg80211_chan_def *chandef, enum ieee80211_chanctx_mode chanmode, - u8 radar_detect) + u8 radar_detect, int radio_idx) { + bool shared = chanmode == IEEE80211_CHANCTX_SHARED; struct ieee80211_local *local = sdata->local; - struct ieee80211_sub_if_data *sdata_iter; enum nl80211_iftype iftype = sdata->wdev.iftype; struct ieee80211_chanctx *ctx; int total = 1; @@ -3977,6 +4060,8 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, if (iftype != NL80211_IFTYPE_UNSPECIFIED) params.iftype_num[iftype] = 1; + ieee80211_fill_ifcomb_params(local, ¶ms, shared ? chandef : NULL, + sdata, radio_idx); list_for_each_entry(ctx, &local->chanctx_list, list) { if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) continue; @@ -3986,28 +4071,9 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, params.num_different_channels++; continue; } - if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && - cfg80211_chandef_compatible(chandef, - &ctx->conf.def)) - continue; params.num_different_channels++; } - list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { - struct wireless_dev *wdev_iter; - - wdev_iter = &sdata_iter->wdev; - - if (sdata_iter == sdata || - !ieee80211_sdata_running(sdata_iter) || - cfg80211_iftype_allowed(local->hw.wiphy, - wdev_iter->iftype, 0, 1)) - continue; - - params.iftype_num[wdev_iter->iftype]++; - total++; - } - if (total == 1 && !params.radar_detect) return 0; @@ -4024,28 +4090,21 @@ ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, c->num_different_channels); } -int ieee80211_max_num_channels(struct ieee80211_local *local) +int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx) { - struct ieee80211_sub_if_data *sdata; - struct ieee80211_chanctx *ctx; + struct wiphy *wiphy = local->hw.wiphy; u32 max_num_different_channels = 1; int err; struct iface_combination_params params = {0}; - lockdep_assert_wiphy(local->hw.wiphy); - - list_for_each_entry(ctx, &local->chanctx_list, list) { - if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) - continue; - - params.num_different_channels++; + if (radio_idx >= wiphy->n_radio) + return -EINVAL; + else if (radio_idx >= 0) + params.radio = &wiphy->radio[radio_idx]; - params.radar_detect |= - ieee80211_chanctx_radar_detect(local, ctx); - } + lockdep_assert_wiphy(local->hw.wiphy); - list_for_each_entry_rcu(sdata, &local->interfaces, list) - params.iftype_num[sdata->wdev.iftype]++; + ieee80211_fill_ifcomb_params(local, ¶ms, NULL, NULL, radio_idx); err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, ieee80211_iter_max_chans,