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[93.144.71.136]) by smtp.gmail.com with ESMTPSA id o41-20020a05600c512900b00389d8c3e2b9sm3850893wms.15.2022.03.17.02.03.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Mar 2022 02:03:55 -0700 (PDT) Date: Thu, 17 Mar 2022 10:03:53 +0100 From: Lorenzo Bianconi To: Deren Wu Cc: Felix Fietkau , Sean Wang , Soul Huang , YN Chen , Leon Yen , Eric-SY Chang , KM Lin , Robin Chiu , CH Yeh , Posh Sun , Eric Liang , Stella Chang , Evelyn Tsai , Ryder Lee , Shayne Chen , linux-wireless , linux-mediatek Subject: Re: [PATCH] mt76: fix monitor rx FCS error in DFS channel Message-ID: References: <7243650f3d51b1919bd4fd0017ff8b0186149e54.1647421054.git.deren.wu@mediatek.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="AuwHAuPZagE1dC5E" Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org --AuwHAuPZagE1dC5E Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > Hi Lore, >=20 > On Wed, 2022-03-16 at 16:15 +0100, Lorenzo Bianconi wrote: > > > From: Deren Wu > > >=20 > > > When setup monitor mode in DFS channel, mt76 send CH_SWITCH_DFS to > > > fw for channel config. This would cause rx performance bad while > > > monitoring frames. Settings CH_SWITCH_NORMAL in monitor mode would > > > get the same performance as normal channels. > >=20 > > Hi Deren, > >=20 > > >=20 > > > Reviewed-by: Shayne Chen > > > Signed-off-by: Deren Wu > > > --- > > > drivers/net/wireless/mediatek/mt76/mt7615/mcu.c | 3 ++- > > > drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 3 ++- > > > drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 3 ++- > > > 3 files changed, 6 insertions(+), 3 deletions(-) > > >=20 > > > diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c > > > b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c > > > index 390add3144c2..97e2a85cb728 100644 > > > --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c > > > +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c > > > @@ -2151,7 +2151,8 @@ int mt7615_mcu_set_chan_info(struct > > > mt7615_phy *phy, int cmd) > > > .center_chan2 =3D ieee80211_frequency_to_channel(freq2), > > > }; > > > =20 > > > - if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH)) > > > + if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH) || > > > + dev->mt76.hw->conf.flags & IEEE80211_CONF_MONITOR) > >=20 > > is this patch compliant with 802.11h DFS standard? >=20 > Monitor mode would not tx packets and still follow standard. We will > keep tracking this point to avoid violations. Hi Deren, this IEEE80211_CONF_MONITOR flags indicates there is a monitor interface, not it is the only one so we can have multiple vifs on the device (e.g. AP + monitor). I was wondering if CH_SWITCH_SCAN_BYPASS_DPD is used to avoid transmitting packets during chip calibration on DFS channels. Regards, Lorenzo >=20 >=20 > Regards, > Deren >=20 >=20 > >=20 > > Regards, > > Lorenzo > >=20 > > > req.switch_reason =3D CH_SWITCH_NORMAL; > > > else if (phy->mt76->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) > > > req.switch_reason =3D CH_SWITCH_SCAN_BYPASS_DPD; > > > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c > > > b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c > > > index 10dc4bf5adec..c56d48342aaf 100644 > > > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c > > > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c > > > @@ -2833,7 +2833,8 @@ int mt7915_mcu_set_chan_info(struct > > > mt7915_phy *phy, int cmd) > > > } > > > #endif > > > =20 > > > - if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH)) > > > + if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH) || > > > + dev->mt76.hw->conf.flags & IEEE80211_CONF_MONITOR) > > > req.switch_reason =3D CH_SWITCH_NORMAL; > > > else if (phy->mt76->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) > > > req.switch_reason =3D CH_SWITCH_SCAN_BYPASS_DPD; > > > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c > > > b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c > > > index 5ef8b24f0ab3..da2be050ed7c 100644 > > > --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c > > > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c > > > @@ -863,7 +863,8 @@ int mt7921_mcu_set_chan_info(struct mt7921_phy > > > *phy, int cmd) > > > else > > > req.channel_band =3D chandef->chan->band; > > > =20 > > > - if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH)) > > > + if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH) || > > > + dev->mt76.hw->conf.flags & IEEE80211_CONF_MONITOR) > > > req.switch_reason =3D CH_SWITCH_NORMAL; > > > else if (dev->mt76.hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) > > > req.switch_reason =3D CH_SWITCH_SCAN_BYPASS_DPD; > > > --=20 > > > 2.18.0 > > >=20 >=20 --AuwHAuPZagE1dC5E Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTquNwa3Txd3rGGn7Y6cBh0uS2trAUCYjL5eQAKCRA6cBh0uS2t rHeaAP9rpvWFTEXCqoSqp2KBbPfjlbHUhLkVwIYctyl72HZEXAD/TlpNfsswC5Of 65WCUQJGGY7nSTVIzV2Msoim8lT3RwY= =e04/ -----END PGP SIGNATURE----- --AuwHAuPZagE1dC5E-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4E623C433F5 for ; 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[93.144.71.136]) by smtp.gmail.com with ESMTPSA id o41-20020a05600c512900b00389d8c3e2b9sm3850893wms.15.2022.03.17.02.03.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Mar 2022 02:03:55 -0700 (PDT) Date: Thu, 17 Mar 2022 10:03:53 +0100 From: Lorenzo Bianconi To: Deren Wu Cc: Felix Fietkau , Sean Wang , Soul Huang , YN Chen , Leon Yen , Eric-SY Chang , KM Lin , Robin Chiu , CH Yeh , Posh Sun , Eric Liang , Stella Chang , Evelyn Tsai , Ryder Lee , Shayne Chen , linux-wireless , linux-mediatek Subject: Re: [PATCH] mt76: fix monitor rx FCS error in DFS channel Message-ID: References: <7243650f3d51b1919bd4fd0017ff8b0186149e54.1647421054.git.deren.wu@mediatek.com> MIME-Version: 1.0 In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220317_020402_545307_CA86DA63 X-CRM114-Status: GOOD ( 22.81 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7556106158216492036==" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org --===============7556106158216492036== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="AuwHAuPZagE1dC5E" Content-Disposition: inline --AuwHAuPZagE1dC5E Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > Hi Lore, >=20 > On Wed, 2022-03-16 at 16:15 +0100, Lorenzo Bianconi wrote: > > > From: Deren Wu > > >=20 > > > When setup monitor mode in DFS channel, mt76 send CH_SWITCH_DFS to > > > fw for channel config. This would cause rx performance bad while > > > monitoring frames. Settings CH_SWITCH_NORMAL in monitor mode would > > > get the same performance as normal channels. > >=20 > > Hi Deren, > >=20 > > >=20 > > > Reviewed-by: Shayne Chen > > > Signed-off-by: Deren Wu > > > --- > > > drivers/net/wireless/mediatek/mt76/mt7615/mcu.c | 3 ++- > > > drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 3 ++- > > > drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 3 ++- > > > 3 files changed, 6 insertions(+), 3 deletions(-) > > >=20 > > > diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c > > > b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c > > > index 390add3144c2..97e2a85cb728 100644 > > > --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c > > > +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c > > > @@ -2151,7 +2151,8 @@ int mt7615_mcu_set_chan_info(struct > > > mt7615_phy *phy, int cmd) > > > .center_chan2 =3D ieee80211_frequency_to_channel(freq2), > > > }; > > > =20 > > > - if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH)) > > > + if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH) || > > > + dev->mt76.hw->conf.flags & IEEE80211_CONF_MONITOR) > >=20 > > is this patch compliant with 802.11h DFS standard? >=20 > Monitor mode would not tx packets and still follow standard. We will > keep tracking this point to avoid violations. Hi Deren, this IEEE80211_CONF_MONITOR flags indicates there is a monitor interface, not it is the only one so we can have multiple vifs on the device (e.g. AP + monitor). I was wondering if CH_SWITCH_SCAN_BYPASS_DPD is used to avoid transmitting packets during chip calibration on DFS channels. Regards, Lorenzo >=20 >=20 > Regards, > Deren >=20 >=20 > >=20 > > Regards, > > Lorenzo > >=20 > > > req.switch_reason =3D CH_SWITCH_NORMAL; > > > else if (phy->mt76->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) > > > req.switch_reason =3D CH_SWITCH_SCAN_BYPASS_DPD; > > > diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c > > > b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c > > > index 10dc4bf5adec..c56d48342aaf 100644 > > > --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c > > > +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c > > > @@ -2833,7 +2833,8 @@ int mt7915_mcu_set_chan_info(struct > > > mt7915_phy *phy, int cmd) > > > } > > > #endif > > > =20 > > > - if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH)) > > > + if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH) || > > > + dev->mt76.hw->conf.flags & IEEE80211_CONF_MONITOR) > > > req.switch_reason =3D CH_SWITCH_NORMAL; > > > else if (phy->mt76->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) > > > req.switch_reason =3D CH_SWITCH_SCAN_BYPASS_DPD; > > > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c > > > b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c > > > index 5ef8b24f0ab3..da2be050ed7c 100644 > > > --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c > > > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c > > > @@ -863,7 +863,8 @@ int mt7921_mcu_set_chan_info(struct mt7921_phy > > > *phy, int cmd) > > > else > > > req.channel_band =3D chandef->chan->band; > > > =20 > > > - if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH)) > > > + if (cmd =3D=3D MCU_EXT_CMD(SET_RX_PATH) || > > > + dev->mt76.hw->conf.flags & IEEE80211_CONF_MONITOR) > > > req.switch_reason =3D CH_SWITCH_NORMAL; > > > else if (dev->mt76.hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) > > > req.switch_reason =3D CH_SWITCH_SCAN_BYPASS_DPD; > > > --=20 > > > 2.18.0 > > >=20 >=20 --AuwHAuPZagE1dC5E Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTquNwa3Txd3rGGn7Y6cBh0uS2trAUCYjL5eQAKCRA6cBh0uS2t rHeaAP9rpvWFTEXCqoSqp2KBbPfjlbHUhLkVwIYctyl72HZEXAD/TlpNfsswC5Of 65WCUQJGGY7nSTVIzV2Msoim8lT3RwY= =e04/ -----END PGP SIGNATURE----- --AuwHAuPZagE1dC5E-- --===============7556106158216492036== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek --===============7556106158216492036==--