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Fri, 16 Aug 2024 17:49:58 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 16 Aug 2024 17:49:59 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 16 Aug 2024 17:49:59 +0800 From: Shayne Chen To: Felix Fietkau CC: linux-wireless , Lorenzo Bianconi , Ryder Lee , Evelyn Tsai , linux-mediatek , Peter Chiu , Shayne Chen Subject: [PATCH 02/12] wifi: mt76: mt7996: fix traffic delay when switching back to working channel Date: Fri, 16 Aug 2024 17:46:26 +0800 Message-ID: <20240816094635.2391-2-shayne.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240816094635.2391-1-shayne.chen@mediatek.com> References: <20240816094635.2391-1-shayne.chen@mediatek.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10-3.692600-8.000000 X-TMASE-MatchedRID: eim6YYjnci0VAKRaMHqjDkf49ONH0RaSzSnbR3NwN1x+YFLISofIH9x+ 57h9IgNOg9nZBGeTizrSB/GPHxZWljEV1fJb8/5dbc297PAGtWYO2nfS7LtDc+WADIjXHIobKT3 PsaLyojRvW4oU3XnAkBruuR1H7YPj9tiEgCVL0jh05zsoB1UKTn0tCKdnhB589yM15V5aWpj6C0 ePs7A07QDtYjZXhssCCwQwd9u+WCA1aQxNd787cwJtzLNqef0oGXx8LLVfIc2urR6T5OLxsw5uA YA3tXk4AzCuQBzc7hvBPtF8G90o2ywJhKn2m7AVSZrfNhP3sgUBh9AgBSEFrJm+YJspVvj2xkvr HlT8euIiT2wjObmjrMC+ksT6a9fy X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10-3.692600-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 395AA2904F97960DC682A8E0FAB40F3B8E5CC53415AF45723FE01D3B5E872BE42000:8 X-MTK: N From: Peter Chiu During scanning, UNI_CHANNEL_RX_PATH tag is necessary for the firmware to properly stop and resume MAC TX queue. Without this tag, HW needs more time to resume traffic when switching back to working channel. Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Signed-off-by: Peter Chiu Signed-off-by: Shayne Chen --- drivers/net/wireless/mediatek/mt76/mt7996/main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c index bce082038219..f3f78e11a65f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c @@ -307,6 +307,10 @@ int mt7996_set_channel(struct mt7996_phy *phy) if (ret) goto out; + ret = mt7996_mcu_set_chan_info(phy, UNI_CHANNEL_RX_PATH); + if (ret) + goto out; + ret = mt7996_dfs_init_radar_detector(phy); mt7996_mac_cca_stats_reset(phy);