From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f99.google.com (mail-pj1-f99.google.com [209.85.216.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 54F0C39659A for ; Tue, 11 Aug 2026 16:13:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.99 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786464816; cv=none; b=LpbsZsAitZuwHwzEIiN/Myep6iJzTGhqwc92ddVx6Xii0yKXhpp7EZyk6+ra8ko/71lHIOINbC71SKPN8XIxWMdQg6oUSkhf96FNlXKsatNqFD71g8RhKy6avDV8A1O9lb6QkX2exfoxAXXsqGuh4bmUcWAP+ZjRiPmy/ZOS/W0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786464816; c=relaxed/simple; bh=qwF8d4vNNFCnN9agV0+J5z2DL43blTty4pDpRo/c9PY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=IMY6QqkJyzYgDVDHtKs3Ov2MY9sCueQGkrLDtIG1hj9F4LVFGRXifOO7ZBydnTzDnBcrpmdjqVIJGDNCLVF73rREZBBbhsNteSfEv9a1D9URK3D5DGOu9N1Y6ULa8Punc8TBfNZCbCP+K5NaMcNQG2i8V5Yuxdf+4QURbc12KX0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=Mq31cAaf; arc=none smtp.client-ip=209.85.216.99 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="Mq31cAaf" Received: by mail-pj1-f99.google.com with SMTP id 98e67ed59e1d1-3900e39d935so78867a91.0 for ; Tue, 11 Aug 2026 09:13:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786464815; x=1787069615; h=content-transfer-encoding:content-type:in-reply-to:autocrypt:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:dkim-signature:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to:content-type; bh=B1mcyQU5zL02/TDzlYz/gT52O4+epVO/lG3nwQ2h8yM=; b=IybbaAHKfC8KWFybD4bYsqpKDNIu1Np2iXRLxpsNm/2g7HXW1ZqBh/A/bZ6dBGty5b 9rdoaR1W4HNDBKea4MjG/vVmB5ef9X58HyMV4aM3BhxsEmLqbSvDeApebakrAhEmilvK ujqBBOsZpjEI/WPtp8025OFbK0WFsvzI0Iz+CtAOUh/m+4BvZq+zMGdh0/d4GNjjGpbc MLzn3r3bcoBqp6eBcN2lN12GDdznVBObnvYxO7BloZOM0mV/M4wF/3L/sTsstg5lNqmh AwxgNNTkFVortOTlKFss/PIBVzvzrjR5QbDGIH+nSc495O12Z0RxFqC9DZJuzDxxQAQP gyTA== X-Forwarded-Encrypted: i=1; AHgh+RqaSNAeYo0cEDs5myiAOc1h4d9F594dM5iNwov4PJhC8KRtAYLYnVbsbw2SzarfLx1gKiQUHEo=@vger.kernel.org X-Gm-Message-State: AOJu0YwJSE/zyMFWmbjXKe8SY2Vl9Dx7durdqGFTY6vKzZ0zZ/I1O+xf RzicC7tpGeqlvINQnIq1pu50EjzmsNF0bL8VFh77i6t5slkaF5oXU0H/jce4sC30VhpvLl17oDR RGT/VtK+5uCDOIvSxYwTyJpRWflvintZdkK2GPIBaLFvydMtlN7fNQ3lPX74jy1NFrr9JK6XA1n QlrSaNJHf8fWGTGmZHP20JgHqRc7waSv+OWEAyZ2xgtmx1aiyqaVoYM44sHXGQOuaI2vqovI2W8 RbenMyfIQMQXY86 X-Gm-Gg: AR+sD11i0UANgEHCZhtM1/5zzyl8n+IyYkALqAcA0OYANPRhbH8ectLFgTU1n+VQvYt s1RIT/KEDAn+yO9yKkZSP9HUStxEwnO4HOtb5O7GrBF/qLMWqV5ctRDfJaBZq+wt4oFx2PzOXHS VWO01lzGWmIfr77Ny4moWrrtOIefnxFpBt/ga2BzEtBaFSIMP51b6aIsUC7rYsdOjfi/1+RwQIz oCkmmRAx1CCcLyVyp/ZLFR1B4DcdXsRpJrY3GSDSXAh1QgSB+DkzNdjiUSJ/rlfcZR4oPaSQBHC AdqNBB0y+sZr3TX9v42FgrA6OAtH+OQHYilGe5pcy9JwGCGrujSp8K3tZ0f4at6swHcLhgJfhjK 5Q2wc+G9f0fH73k0b/J86wO2U0l5WMHceQFAX+tJMwmxmsLiPE44bZzVzgzCtJjk643GdaxVnoo Who2cjbSdlaZpQ5lE+JjZEgkXcK2yPoM0YqyYQIKbBBvM= X-Received: by 2002:a17:90b:2751:b0:392:e5b1:d833 with SMTP id 98e67ed59e1d1-392ec557b4bmr5713884a91.13.1786464814503; Tue, 11 Aug 2026 09:13:34 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-120.dlp.protect.broadcom.com. [144.49.247.120]) by smtp-relay.gmail.com with ESMTPS id 98e67ed59e1d1-392f94f18a4sm9993a91.10.2026.08.11.09.13.33 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 11 Aug 2026 09:13:34 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-pj1-f70.google.com with SMTP id 98e67ed59e1d1-38ea32e57e2so53570a91.1 for ; Tue, 11 Aug 2026 09:13:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1786464812; x=1787069612; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:autocrypt:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to :content-type; bh=B1mcyQU5zL02/TDzlYz/gT52O4+epVO/lG3nwQ2h8yM=; b=Mq31cAafMUBnZFnv4wbterSzU02ZyNPg21emVYS5cLevxD3uGXPFWEG5B6bMkannwA hdhoudfBkCavwCr3KUjkR7yuLZk3qOVtSNrH51aSmAThkoyZZXQJncJk6zyz7RWUgGew E0vJZa197zghRc4XuDKlzVMClzQ9/hNB/bheM= X-Forwarded-Encrypted: i=1; AHgh+RrFk3x4+0UbsVQoACy4BZ1ya3uD/+iKdYrnkGXmZDARFuYdFXcfAw26IkY1k7tlwVKKAMRbsFs=@vger.kernel.org X-Received: by 2002:a17:90b:520a:b0:38e:fea2:df53 with SMTP id 98e67ed59e1d1-392ec2e8461mr5585324a91.4.1786464812299; Tue, 11 Aug 2026 09:13:32 -0700 (PDT) X-Received: by 2002:a17:90b:520a:b0:38e:fea2:df53 with SMTP id 98e67ed59e1d1-392ec2e8461mr5585170a91.4.1786464811546; Tue, 11 Aug 2026 09:13:31 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-31cf628ef6csm1003882eec.16.2026.08.11.09.13.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 Aug 2026 09:13:30 -0700 (PDT) Message-ID: Date: Tue, 11 Aug 2026 09:13:28 -0700 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net] net: dsa: b53: be VLAN unaware when not filtering To: Jonas Gorski , Vladimir Oltean Cc: Semih Baskan , 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 References: <20260805072641.402-1-strst.gs@gmail.com> <20260806102327.wrig23oltjzogyi7@skbuf> <20260810120442.255nahzmurjhi5jn@skbuf> Content-Language: en-US, fr-FR From: Florian Fainelli Autocrypt: addr=florian.fainelli@broadcom.com; keydata= xsBNBFPAG8ABCAC3EO02urEwipgbUNJ1r6oI2Vr/+uE389lSEShN2PmL3MVnzhViSAtrYxeT M0Txqn1tOWoIc4QUl6Ggqf5KP6FoRkCrgMMTnUAINsINYXK+3OLe7HjP10h2jDRX4Ajs4Ghs JrZOBru6rH0YrgAhr6O5gG7NE1jhly+EsOa2MpwOiXO4DE/YKZGuVe6Bh87WqmILs9KvnNrQ PcycQnYKTVpqE95d4M824M5cuRB6D1GrYovCsjA9uxo22kPdOoQRAu5gBBn3AdtALFyQj9DQ KQuc39/i/Kt6XLZ/RsBc6qLs+p+JnEuPJngTSfWvzGjpx0nkwCMi4yBb+xk7Hki4kEslABEB AAHNMEZsb3JpYW4gRmFpbmVsbGkgPGZsb3JpYW4uZmFpbmVsbGlAYnJvYWRjb20uY29tPsLB IQQQAQgAywUCZWl41AUJI+Jo+hcKAAG/SMv+fS3xUQWa0NryPuoRGjsA3SAUAAAAAAAWAAFr ZXktdXNhZ2UtbWFza0BwZ3AuY29tjDAUgAAAAAAgAAdwcmVmZXJyZWQtZW1haWwtZW5jb2Rp bmdAcGdwLmNvbXBncG1pbWUICwkIBwMCAQoFF4AAAAAZGGxkYXA6Ly9rZXlzLmJyb2FkY29t Lm5ldAUbAwAAAAMWAgEFHgEAAAAEFQgJChYhBNXZKpfnkVze1+R8aIExtcQpvGagAAoJEIEx tcQpvGagWPEH/2l0DNr9QkTwJUxOoP9wgHfmVhqc0ZlDsBFv91I3BbhGKI5UATbipKNqG13Z TsBrJHcrnCqnTRS+8n9/myOF0ng2A4YT0EJnayzHugXm+hrkO5O9UEPJ8a+0553VqyoFhHqA zjxj8fUu1px5cbb4R9G4UAySqyeLLeqnYLCKb4+GklGSBGsLMYvLmIDNYlkhMdnnzsSUAS61 WJYW6jjnzMwuKJ0ZHv7xZvSHyhIsFRiYiEs44kiYjbUUMcXor/uLEuTIazGrE3MahuGdjpT2 IOjoMiTsbMc0yfhHp6G/2E769oDXMVxCCbMVpA+LUtVIQEA+8Zr6mX0Yk4nDS7OiBlvOwE0E U8AbwQEIAKxr71oqe+0+MYCc7WafWEcpQHFUwvYLcdBoOnmJPxDwDRpvU5LhqSPvk/yJdh9k 4xUDQu3rm1qIW2I9Puk5n/Jz/lZsqGw8T13DKyu8eMcvaA/irm9lX9El27DPHy/0qsxmxVmU pu9y9S+BmaMb2CM9IuyxMWEl9ruWFS2jAWh/R8CrdnL6+zLk60R7XGzmSJqF09vYNlJ6Bdbs MWDXkYWWP5Ub1ZJGNJQ4qT7g8IN0qXxzLQsmz6tbgLMEHYBGx80bBF8AkdThd6SLhreCN7Uh IR/5NXGqotAZao2xlDpJLuOMQtoH9WVNuuxQQZHVd8if+yp6yRJ5DAmIUt5CCPcAEQEAAcLB gQQYAQIBKwUCU8AbwgUbDAAAAMBdIAQZAQgABgUCU8AbwQAKCRCTYAaomC8PVQ0VCACWk3n+ obFABEp5Rg6Qvspi9kWXcwCcfZV41OIYWhXMoc57ssjCand5noZi8bKg0bxw4qsg+9cNgZ3P N/DFWcNKcAT3Z2/4fTnJqdJS//YcEhlr8uGs+ZWFcqAPbteFCM4dGDRruo69IrHfyyQGx16s CcFlrN8vD066RKevFepb/ml7eYEdN5SRALyEdQMKeCSf3mectdoECEqdF/MWpfWIYQ1hEfdm C2Kztm+h3Nkt9ZQLqc3wsPJZmbD9T0c9Rphfypgw/SfTf2/CHoYVkKqwUIzI59itl5Lze+R5 wDByhWHx2Ud2R7SudmT9XK1e0x7W7a5z11Q6vrzuED5nQvkhAAoJEIExtcQpvGagugcIAJd5 EYe6KM6Y6RvI6TvHp+QgbU5dxvjqSiSvam0Ms3QrLidCtantcGT2Wz/2PlbZqkoJxMQc40rb fXa4xQSvJYj0GWpadrDJUvUu3LEsunDCxdWrmbmwGRKqZraV2oG7YEddmDqOe0Xm/NxeSobc MIlnaE6V0U8f5zNHB7Y46yJjjYT/Ds1TJo3pvwevDWPvv6rdBeV07D9s43frUS6xYd1uFxHC 7dZYWJjZmyUf5evr1W1gCgwLXG0PEi9n3qmz1lelQ8lSocmvxBKtMbX/OKhAfuP/iIwnTsww 95A2SaPiQZA51NywV8OFgsN0ITl2PlZ4Tp9hHERDe6nQCsNI/Us= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e On 8/11/26 01:06, Jonas Gorski wrote: > On Mon, Aug 10, 2026 at 2:04 PM Vladimir Oltean wrote: >> >> 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? > > I don't have access to a datasheet or a device to test, Florian will > need to answer that completely. Not a whole lot of details in the datasheet, but essentially what is being provided is: IVL: a given MAC address can only appear in one VLAN SVL: a given MAC address can appear on different ports as long as the ports are not in the same VLAN. > > I can only guess from the register descriptions, which imply that > enabling SVL for port makes any ARL lookups SVL based, i.e. VID is > ignored/forced to 0. Presumably this essentially only applies to for > frames received on that port for lookup / learning. > > There is a global option for configuring IVL or SVL, but this option > is only valid when VLAN-aware is enabled in the switch. Without it, > learning is always SVL. > > I do not know how the per port IVL/SVL actually register works, and > whether you can enable IVL in VLAN-unaware mode (I would guess not). IVL/SVL applies to 802.1Q (VLAN enabled) mode, double tagging mode and individual double tagging mode, so yes this depends on VLAN being enabled globally. > > Note that there is no differentiation in ARL entries themselves > whether they are IVL or SVL entries, only the table index calculation > changes. > > Best regards, > Jonas -- Florian