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Mon, 10 Aug 2026 05:04:45 -0700 (PDT) Date: Mon, 10 Aug 2026 15:04:42 +0300 From: Vladimir Oltean To: Jonas Gorski Cc: Semih Baskan , florian.fainelli@broadcom.com, andrew@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, vladimir.oltean@nxp.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net] net: dsa: b53: be VLAN unaware when not filtering Message-ID: <20260810120442.255nahzmurjhi5jn@skbuf> References: <20260805072641.402-1-strst.gs@gmail.com> <20260806102327.wrig23oltjzogyi7@skbuf> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Aug 06, 2026 at 01:09:03PM +0200, Jonas Gorski wrote: > > static int b53_arl_rw_op(struct b53_device *dev, unsigned int op) > > { > > u8 reg; > > > > if (op > ARLTBL_RW) > > return -EINVAL; > > > > b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®); > > reg |= ARLTBL_START_DONE; > > if (op) > > reg |= ARLTBL_RW; > > else > > reg &= ~ARLTBL_RW; > > if (dev->vlan_enabled) > > reg &= ~ARLTBL_IVL_SVL_SELECT; > > else > > reg |= ARLTBL_IVL_SVL_SELECT; > > This ARLTBL_IVL_SVL_SELECT bit is only implemented for a small subset > of switches (bcm5302x / bcm58* and bcm53134). Additionally, according > to the register description, this also requires enabling "per port > IVL/SVL" mode, which is not enable by b53. The description of that > also says that the VIDs used in SVL ports must not be used in IVL > ports. No idea what the consequences are if they do. What does enabling per port IVL/SVL mode do?