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 34278C61DBE for ; Wed, 26 Aug 2026 20:20:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sdBgprMEYcaiSUj0ygVN2sdfjT+LVmQNKAKHSXm0dYs=; b=YpFDbTBg0+lLLyqLrgBm6M2FDP v5ga3Mo3TajVzZ7bR0cycqs0jd5BpOjsIqxDNkSdLrhNjDi1uyghF2tBnyDPOYdRbdqNtC6KZ395X bFVCdaYOq9KCoHHd0JGY6/YUgZWS9VOh1k5qE7WTOv9wJmWpxh1AYq9kUlj0nRqK8IOBV1hwv2n7F h2AIYABzF2RIKVvmbR9uFlOl4qO8y/7TRDpwMfRTQ97CI2u2Tf6npVrHyr5XFRR2KG+Q1vRfrmTmA 0GmIGaXEEwBLKR+agkQ1fm7+bju/f5tVwxvVSNZT2GbyudI5DQl/bkrgJfTsormVnVd2cF8luRxSs 0MJYfvLg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wzK78-00000002yzX-0fD8; Wed, 26 Aug 2026 20:20:50 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wzK76-00000002yz9-3Oc8 for linux-arm-kernel@lists.infradead.org; Wed, 26 Aug 2026 20:20:48 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id DF3E06011F; Wed, 26 Aug 2026 20:20:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F8CE1F000E9; Wed, 26 Aug 2026 20:20:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787775647; bh=sdBgprMEYcaiSUj0ygVN2sdfjT+LVmQNKAKHSXm0dYs=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=Q294isjThieFDrLugvFd1j77TaAVB2QAfsB3TQVc990b36f+1TuRDchhHGUOCTYmZ /qLud6mlMd5GX2gWFNZe7LJ+1QxL5wZWzZUyDBEUF7I9TXv5y2wYtUeu0+FCRaTzWY cAvQDhTC0CuVC1M7qyRBuC5L8U6uFwyvdHHUh5/doxL+wsmj852Ov18fcsA5Om74iq /viq4ftEPN1BpJsgIKXReyaVM8HFTfdzvgUX2sFbi8IqxPsYPvyR1B5ZN32bVpr9J8 5M2idS8spkwUTRc0+2K7cK0hA+Ho9M2Ks1MKT3zuz1xdZnFcHW5VUrPIjhanKtqtlf 2GfQQKik9shxA== Date: Wed, 26 Aug 2026 13:20:43 -0700 From: Jakub Kicinski To: Maxime Chevallier Cc: Stanislav Fomichev , Maciej Fijalkowski , netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com, andrew+netdev@lunn.ch, saeedm@nvidia.com, tariqt@nvidia.com, mbloch@nvidia.com, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, aleksander.lobakin@intel.com, horms@kernel.org, magnus.karlsson@intel.com, sdf@fomichev.me, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, guoren@kernel.org, dtatulea@nvidia.com, witu@nvidia.com, martin.lau@kernel.org, yoong.siang.song@intel.com, intel-wired-lan@lists.osuosl.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, bpf@vger.kernel.org, linux-csky@vger.kernel.org, leon@kernel.org Subject: Re: [PATCH net v3 3/3] net: stmmac: document oversized AF_XDP frame handling Message-ID: <20260826132043.39fb435a@kernel.org> In-Reply-To: References: <20260819160535.1472459-1-sdf@fomichev.me> <20260819160535.1472459-4-sdf@fomichev.me> <20260824111443.34bffe04@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 26 Aug 2026 14:42:25 +0200 Maxime Chevallier wrote: > >> Let's definitely fix it properly if you have better ideas. But since we > >> don't have HW, I'm not super confident doing anything sophisticated > >> myself :-D > > > > Let me take the first 2 patches and leave the stmmac for later. > > I don't think anyone involved care particularly deeply here. > > > > Maxime said he bought a bunch of relevant HW. If we finally wrap > > the AF_XDP tests into driver runtime he should be able to help us... > > Indeed, I haven't started looking into the AF_XDP (and XDP in general) on > stmmac, lots of fixes lately on the subject so I'll get there eventually :) > > I'm currently plumbing the driver selftest on my setup (ethtool -t) and just > runnign this uncovers lots of issues al lover the place, once this > passes I'll get on the kselftests and see what we can do on this. Also if you try running driver ksfts - please keep us posted on what the blockers are. I _think_ we just need to teach ksft to cross compile C binaries?