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Thu, 19 Mar 2026 18:24:24 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface From: Javier Tia Date: Thu, 19 Mar 2026 16:24:18 -0600 Subject: [PATCH v2 02/13] wifi: mt76: mt7925: add 320MHz bandwidth to bss_rlm_tlv Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260319-mt7927-wifi-support-v2-v2-2-d627a7fad70d@jetm.me> To: Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Deren Wu , Ming Yen Hsieh Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, =?utf-8?q?=E5=BC=A0=E6=97=AD=E6=B6=B5?= , Marcin FM , Cristian-Florin Radoi , George Salukvadze , Evgeny Kapusta <3193631@gmail.com>, Samu Toljamo , Ariel Rosenfeld , Chapuis Dario , =?utf-8?q?Thibaut_Fran=C3=A7ois?= X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1913; i=floss@jetm.me; h=from:subject:message-id; bh=oL0xrbX2LUVp9Q4JBTD78nnciF3VWT3fiWIhBG52oaU=; b=owEB7QES/pANAwAKAbXuwwuoZ3cfAcsmYgBpvHeQM1UeD5VnQ9wjqUu6j/sz7dtyOhS1NJNEN lYq+/tgNP6JAbMEAAEKAB0WIQSbE7ILzw7eI0VKk8m17sMLqGd3HwUCabx3kAAKCRC17sMLqGd3 H80aC/wNHmTjAL+3tuCHYF3BJwsK1kXW2AJneZctvf+yz6XnZplPXeP7GVTKx4FRlCySIe3j19Q fL0rxBVomu481PG0T5dbnnc4xfQUAAU/XCWSPO0Uvq91v2AFqWd5WT62TV7mfnPIz6lWKEEeHDA uBY1W3X8wMx4Tsyg0daublZniuAb/BIExbmt/EvEdoAd9nc+M7DG/LUawdCsrLs6kjqcqm9hnvT vc4LS5j8am88h9FLdmLfrMWraELq1ljKr0FtNDrwHNyobVSal/B6/ODqNpaQ+g0bEpHplo3BuTf MMSVYmMawfcU5K+v0TY2mzEld2/PwQWVeW0O4kZT192QEDqvejbaU/JbXhkveyI5LkEFtc5fMGq g8NbBV2KvoCHR1DcMC2JPLD3lOGSI7P0SS9fLJOsD8L7RQ/P1wX4n7SKWA6Hdcd6yXJZ6IMzTvI 9iRjrCgvWPfZCuRVUWkcFqBxn/02CmmhAO8OkNKzhFucqogxIIDCbwK/2kcCm76UgddUM= X-Developer-Key: i=floss@jetm.me; a=openpgp; fpr=9B13B20BCF0EDE23454A93C9B5EEC30BA867771F In-Reply-To: <20260319-mt7927-wifi-support-v2-v2-0-d627a7fad70d@jetm.me> References: <20260319-mt7927-wifi-support-v2-v2-0-d627a7fad70d@jetm.me> bss_rlm_tlv() in mt7925_mcu_bss_rlm_tlv() has no case for NL80211_CHAN_WIDTH_320. When associated to a 320MHz BSS, the switch falls through to default and sends bw=0 (CMD_CBW_20MHZ) to firmware via BSS_RLM TLV. Firmware then configures the RX radio for 20MHz and cannot decode the AP's 320MHz frames, resulting in complete data path failure at 320MHz. Add the missing NL80211_CHAN_WIDTH_320 case with CMD_CBW_320MHZ and center_chan2. Tested on ASUS RT-BE92U: 320MHz throughput goes from 0 Mbps to 841 Mbps (iperf3 -t30 -P8), PHY 4803 Mbps EHT-MCS11. Reported-by: 张旭涵 Closes: https://github.com/openwrt/mt76/issues/927 Tested-by: 张旭涵 Tested-by: Marcin FM Tested-by: Cristian-Florin Radoi Tested-by: George Salukvadze Tested-by: Evgeny Kapusta <3193631@gmail.com> Tested-by: Samu Toljamo Tested-by: Ariel Rosenfeld Tested-by: Chapuis Dario Tested-by: Thibaut François Signed-off-by: Javier Tia --- drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c index cf0fdea45cf7..dd5ecb07947b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c @@ -2331,6 +2331,10 @@ void mt7925_mcu_bss_rlm_tlv(struct sk_buff *skb, struct mt76_phy *phy, case NL80211_CHAN_WIDTH_160: req->bw = CMD_CBW_160MHZ; break; + case NL80211_CHAN_WIDTH_320: + req->bw = CMD_CBW_320MHZ; + req->center_chan2 = ieee80211_frequency_to_channel(freq2); + break; case NL80211_CHAN_WIDTH_5: req->bw = CMD_CBW_5MHZ; break; -- 2.53.0