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[2.205.23.67]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5f703831b5csm7863022a12.65.2025.04.29.13.17.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Apr 2025 13:17:27 -0700 (PDT) From: Jonas Gorski To: Florian Fainelli , Andrew Lunn , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Russell King , Kurt Kanzenbach Cc: Florian Fainelli , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net 01/11] net: dsa: b53: allow leaky reserved multicast Date: Tue, 29 Apr 2025 22:17:00 +0200 Message-ID: <20250429201710.330937-2-jonas.gorski@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250429201710.330937-1-jonas.gorski@gmail.com> References: <20250429201710.330937-1-jonas.gorski@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Allow reserved multicast to ignore VLAN membership so STP and other management protocols work without a PVID VLAN configured when using a vlan aware bridge. Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch") Signed-off-by: Jonas Gorski --- drivers/net/dsa/b53/b53_common.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_com= mon.c index e5ba71897906..62866165ad03 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -373,9 +373,11 @@ static void b53_enable_vlan(struct b53_device *dev, in= t port, bool enable, b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5); } =20 + vc1 &=3D ~VC1_RX_MCST_FWD_EN; + if (enable) { vc0 |=3D VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID; - vc1 |=3D VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN; + vc1 |=3D VC1_RX_MCST_UNTAG_EN; vc4 &=3D ~VC4_ING_VID_CHECK_MASK; if (enable_filtering) { vc4 |=3D VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S; @@ -393,7 +395,7 @@ static void b53_enable_vlan(struct b53_device *dev, int= port, bool enable, =20 } else { vc0 &=3D ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID); - vc1 &=3D ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN); + vc1 &=3D ~VC1_RX_MCST_UNTAG_EN; vc4 &=3D ~VC4_ING_VID_CHECK_MASK; vc5 &=3D ~VC5_DROP_VTABLE_MISS; =20 --=20 2.43.0