From patchwork Tue Jul 2 11:36:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 810334 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 3200615B12D for ; Tue, 2 Jul 2024 11:36:11 +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=1719920172; cv=none; b=C/6IQBj+mXItP/pzzu2XftgNPgKUoMFwRKfKW9inFMTZ6RBrly5yP6nQIbUfV6W6wLgy3g9ox/CHtQk+MtRkBD9H7BeXrcyi++kNy/tzZDE+BqtDFU/Cq5jSALtwzXtHoXQub6xe/xTFGvqRE2mlM1nXWsQQHe6gWaZImBdMc/0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719920172; c=relaxed/simple; bh=m5fOfmaL4P5ZvIlvt1E9zjnKlngEhac9MjwaJ6sjtBI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kTI3zXFA5Ii2IPxZJt0+4Fx6T1lmdGVaIWVaQb/Wmz5Khg3b7Wc//1dcS5h7a8p5V0eD//qSkB9Z6WVugj4PuP7D5DvWWjlIwQ+j+EVfmva5tiKvZLU6VFeljFtKiViNphoEqtaT+2MLKkMGAimfZbB7aRVC581Ch+uvP0Dico4= 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=K+gt4X6M; 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="K+gt4X6M" 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=fftS+K84L8nIjshhrNW3mFUzxBeeo1mJn4mMKCfM9i4=; b=K+gt4X6M2624aBOe7cUPINGC0V e1Bneilk9UbnH0mDiLn5PvPqb2ikIc16nJCor7zSr/HcVWjeZj5EA8f6mUeyx3S3qxilDV+OStGAI r3GaqqHtQjp//jUOU/3WYWi+c7fYG68mPHF6zbgW0WVlp2TxAIil4MPHn4mYi2SO8f/M=; Received: from p54ae9766.dip0.t-ipconnect.de ([84.174.151.102] helo=localhost.localdomain) by ds12 with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (Exim 4.96) (envelope-from ) id 1sObns-001lDm-2l; Tue, 02 Jul 2024 13:36:08 +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: [PATCH v4 09/10] wifi: mac80211: add wiphy radio assignment and validation Date: Tue, 2 Jul 2024 13:36:04 +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 Validate number of channels and interface combinations per radio. Assign each channel context to a radio. Signed-off-by: Felix Fietkau --- net/mac80211/chan.c | 52 +++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 47 insertions(+), 5 deletions(-) diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 9aa3b9e25228..e8567723e94d 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -714,14 +714,15 @@ static struct ieee80211_chanctx * ieee80211_new_chanctx(struct ieee80211_local *local, const struct ieee80211_chan_req *chanreq, enum ieee80211_chanctx_mode mode, - bool assign_on_failure) + bool assign_on_failure, + int radio_idx) { struct ieee80211_chanctx *ctx; int err; lockdep_assert_wiphy(local->hw.wiphy); - ctx = ieee80211_alloc_chanctx(local, chanreq, mode, -1); + ctx = ieee80211_alloc_chanctx(local, chanreq, mode, radio_idx); if (!ctx) return ERR_PTR(-ENOMEM); @@ -1096,6 +1097,8 @@ ieee80211_replace_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *curr_ctx) { struct ieee80211_chanctx *new_ctx, *ctx; + struct wiphy *wiphy = local->hw.wiphy; + const struct wiphy_radio *radio; if (!curr_ctx || (curr_ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) || @@ -1125,6 +1128,12 @@ ieee80211_replace_chanctx(struct ieee80211_local *local, if (!list_empty(&ctx->reserved_links)) continue; + if (ctx->conf.radio_idx >= 0) { + radio = &wiphy->radio[ctx->conf.radio_idx]; + if (!cfg80211_radio_chandef_valid(radio, &chanreq->oper)) + continue; + } + curr_ctx = ctx; break; } @@ -1154,6 +1163,34 @@ ieee80211_replace_chanctx(struct ieee80211_local *local, return new_ctx; } +static bool +ieee80211_find_available_radio(struct ieee80211_local *local, + const struct ieee80211_chan_req *chanreq, + int *radio_idx) +{ + struct wiphy *wiphy = local->hw.wiphy; + const struct wiphy_radio *radio; + int i; + + *radio_idx = -1; + if (!wiphy->n_radio) + return true; + + for (i = 0; i < wiphy->n_radio; i++) { + radio = &wiphy->radio[i]; + if (!cfg80211_radio_chandef_valid(radio, &chanreq->oper)) + continue; + + if (!ieee80211_can_create_new_chanctx(local, i)) + continue; + + *radio_idx = i; + return true; + } + + return false; +} + int ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, const struct ieee80211_chan_req *chanreq, enum ieee80211_chanctx_mode mode, @@ -1162,6 +1199,7 @@ int ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, struct ieee80211_sub_if_data *sdata = link->sdata; struct ieee80211_local *local = sdata->local; struct ieee80211_chanctx *new_ctx, *curr_ctx; + int radio_idx; lockdep_assert_wiphy(local->hw.wiphy); @@ -1171,9 +1209,10 @@ 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, -1)) + if (ieee80211_can_create_new_chanctx(local, -1) && + ieee80211_find_available_radio(local, chanreq, &radio_idx)) new_ctx = ieee80211_new_chanctx(local, chanreq, mode, - false); + false, radio_idx); else new_ctx = ieee80211_replace_chanctx(local, chanreq, mode, curr_ctx); @@ -1810,6 +1849,7 @@ int _ieee80211_link_use_channel(struct ieee80211_link_data *link, struct ieee80211_chanctx *ctx; u8 radar_detect_width = 0; bool reserved = false; + int radio_idx; int ret; lockdep_assert_wiphy(local->hw.wiphy); @@ -1840,9 +1880,11 @@ int _ieee80211_link_use_channel(struct ieee80211_link_data *link, /* Note: context is now reserved */ if (ctx) reserved = true; + else if (!ieee80211_find_available_radio(local, chanreq, &radio_idx)) + ctx = ERR_PTR(-EBUSY); else ctx = ieee80211_new_chanctx(local, chanreq, mode, - assign_on_failure); + assign_on_failure, radio_idx); if (IS_ERR(ctx)) { ret = PTR_ERR(ctx); goto out;