From patchwork Wed Jun 12 12:32:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 803855 Received: from sipsolutions.net (s3.sipsolutions.net [168.119.38.16]) (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 0DFE816F0F3 for ; Wed, 12 Jun 2024 12:34:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=168.119.38.16 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718195665; cv=none; b=AElVCELsJSzzrIpXlP8PbHVZuQzPcvC5znLil2XHNWIWqIeVgMuq7o5gVKoBzcHk3vj9eRavge2b3CgeGXXKPofiPQTYfNu/OKshUVvlGQmug0td0rKPfeJvyqKg/Wq0lz8OLpIMaHwz/NeO3x/If/TQniNRvFE+HYNgm0xEi34= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718195665; c=relaxed/simple; bh=EDp7uGJRSm1GeTsVcCOYz7JF7KqL/Euyu4h7rq+54Tc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mkQ1J3FZwIO8r9HkbnKTcR3MlWykqIw2emKOfClsieYr2tipvX+eYVJTS2Hi7iy6yA6eameXWiVdJiwYNZEm2hz5Cn7Jd1BUPWkE/StyfbZEPhHarUfTsClu//weEtPovLdIJ9zEWorZl75Di3LWT0vOSalgzPKvFeTPnRH7yUI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sipsolutions.net; spf=pass smtp.mailfrom=sipsolutions.net; dkim=pass (2048-bit key) header.d=sipsolutions.net header.i=@sipsolutions.net header.b=vd1XWjp1; arc=none smtp.client-ip=168.119.38.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sipsolutions.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sipsolutions.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sipsolutions.net header.i=@sipsolutions.net header.b="vd1XWjp1" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=x9o0Qb5aiUOeUHccaEuviJ5t9rKzcFLjOj+9CsrZNZY=; t=1718195664; x=1719405264; b=vd1XWjp1FTMSPk9dmCvODOGq5kqTGykHod6pcC24qQnvooX DRde+52zrnbBAWaeWzmcuBMu7jBuqgxnZlPPYeB08u1DjGiG2oSA5M9PfuYeb+eOf92o7Zz9IYEf9 N0iSwaJd62tK8bUJPDNbPjCWp0E2+W3OWfJTk/3WXzHG4LYdIClEdCHeq6MNhiej0Vr4ViRZJeLHZ jMWRqCFkyZF5Cvt6I5GD3ci78/EAzIgwM3pQIGHDJU9uJU4sD6N3lb0Tkq/HvzVdzuoX3PL6Qfs7/ cylJSshfVnUWjkata5xWsIHa4bEzdjlKWbhe/opgPKdN0G7fnHgFdbu3153hjJrg==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.97) (envelope-from ) id 1sHNBF-0000000AGkC-1b3F; Wed, 12 Jun 2024 14:34:21 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg , Miriam Rachel Korenblit Subject: [PATCH 1/4] wifi: mac80211: optionally pass chandef to ieee80211_sta_cap_rx_bw() Date: Wed, 12 Jun 2024 14:32:03 +0200 Message-ID: <20240612143418.772313f08b6a.If9708249e5870671e745d4c2b02e03b25092bea3@changeid> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240612123418.37295-6-johannes@sipsolutions.net> References: <20240612123418.37295-6-johannes@sipsolutions.net> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Johannes Berg We'll need this function to take a new chandef in (some) channel switching cases, so prepare for that by allowing that to be passed and using it if so. Clean up the code a little bit while at it. Reviewed-by: Miriam Rachel Korenblit Signed-off-by: Johannes Berg --- net/mac80211/ieee80211_i.h | 8 ++++++- net/mac80211/vht.c | 48 +++++++++++++++++++------------------- 2 files changed, 31 insertions(+), 25 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 3e735c9436d3..e436ccb1ee3a 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2155,7 +2155,13 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, const struct ieee80211_vht_cap *vht_cap_ie2, struct link_sta_info *link_sta); enum ieee80211_sta_rx_bandwidth -ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta); +_ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, + struct cfg80211_chan_def *chandef); +static inline enum ieee80211_sta_rx_bandwidth +ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) +{ + return _ieee80211_sta_cap_rx_bw(link_sta, NULL); +} enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta); void ieee80211_sta_init_nss(struct link_sta_info *link_sta); diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index 642891cafbaf..c280945fc9d6 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -351,7 +351,8 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, /* FIXME: move this to some better location - parses HE/EHT now */ enum ieee80211_sta_rx_bandwidth -ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) +_ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, + struct cfg80211_chan_def *chandef) { unsigned int link_id = link_sta->link_id; struct ieee80211_sub_if_data *sdata = link_sta->sta->sdata; @@ -361,44 +362,43 @@ ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) u32 cap_width; if (he_cap->has_he) { - struct ieee80211_bss_conf *link_conf; - enum ieee80211_sta_rx_bandwidth ret; + enum nl80211_band band; u8 info; - rcu_read_lock(); - link_conf = rcu_dereference(sdata->vif.link_conf[link_id]); + if (chandef) { + band = chandef->chan->band; + } else { + struct ieee80211_bss_conf *link_conf; - if (eht_cap->has_eht && - link_conf->chanreq.oper.chan->band == NL80211_BAND_6GHZ) { + rcu_read_lock(); + link_conf = rcu_dereference(sdata->vif.link_conf[link_id]); + band = link_conf->chanreq.oper.chan->band; + rcu_read_unlock(); + } + + if (eht_cap->has_eht && band == NL80211_BAND_6GHZ) { info = eht_cap->eht_cap_elem.phy_cap_info[0]; - if (info & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ) { - ret = IEEE80211_STA_RX_BW_320; - goto out; - } + if (info & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ) + return IEEE80211_STA_RX_BW_320; } info = he_cap->he_cap_elem.phy_cap_info[0]; - if (link_conf->chanreq.oper.chan->band == NL80211_BAND_2GHZ) { + if (band == NL80211_BAND_2GHZ) { if (info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G) - ret = IEEE80211_STA_RX_BW_40; - else - ret = IEEE80211_STA_RX_BW_20; - goto out; + return IEEE80211_STA_RX_BW_40; + return IEEE80211_STA_RX_BW_20; } if (info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G || info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) - ret = IEEE80211_STA_RX_BW_160; - else if (info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G) - ret = IEEE80211_STA_RX_BW_80; - else - ret = IEEE80211_STA_RX_BW_20; -out: - rcu_read_unlock(); + return IEEE80211_STA_RX_BW_160; - return ret; + if (info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G) + return IEEE80211_STA_RX_BW_80; + + return IEEE80211_STA_RX_BW_20; } if (!vht_cap->vht_supported)