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 smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 C4E62EF99D3 for ; Fri, 13 Feb 2026 20:34:55 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 6B39741E17; Fri, 13 Feb 2026 20:34:55 +0000 (UTC) X-Virus-Scanned: amavis at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavis, port 10024) with ESMTP id rOkXYB-XIC59; Fri, 13 Feb 2026 20:34:53 +0000 (UTC) X-Comment: SPF check N/A for local connections - client-ip=140.211.166.142; helo=lists1.osuosl.org; envelope-from=intel-wired-lan-bounces@osuosl.org; receiver= DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 703A641E14 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org; s=default; t=1771014893; bh=byJ7P9wBxKwBGxzkiFFWkFLzr5TIuDdg2vakTlQnC1w=; h=Date:From:To:Cc:In-Reply-To:References:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=YlfOY4PEbUFDp8asKeS4kcJgn7bkm52maZcxAa5HWzV7+IhL3TT8m282rKCtYiZ1C OOAi0ZSSbFQAKFZN+W2Z7d+y+rJ97v6jrAC9vWHuuxSujpugxn+IaVrL1rDgmWkqju yl1Yga+3/SWc+VdmVzQ3Q/QJv73W7e5zKXGAIQoUaeg4MVFoC3bDGCPN1pewQBP3yY J+BsO64AQcTpcUFYVSeHDKTpgttP94HqJvMBNSN5e5FREZ8mq6GjodRszFz10V1aFj hbYCZLWCAe720B2+uipRS8NUivmyC2Z1THPKu44QhpWf91PaOy7qLjWDSMZdrjY5Nd 26wF/7LayQ0Vw== Received: from lists1.osuosl.org (lists1.osuosl.org [140.211.166.142]) by smtp4.osuosl.org (Postfix) with ESMTP id 703A641E14; Fri, 13 Feb 2026 20:34:53 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [IPv6:2605:bc80:3010::138]) by lists1.osuosl.org (Postfix) with ESMTP id 4767569 for ; Fri, 13 Feb 2026 20:34:51 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 28C308130D for ; Fri, 13 Feb 2026 20:34:51 +0000 (UTC) X-Virus-Scanned: amavis at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavis, port 10024) with ESMTP id 73ctHupYJvW6 for ; Fri, 13 Feb 2026 20:34:49 +0000 (UTC) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=2600:3c04:e001:324:0:1991:8:25; helo=tor.source.kernel.org; envelope-from=kuba@kernel.org; receiver= DMARC-Filter: OpenDMARC Filter v1.4.2 smtp1.osuosl.org 956CD812D4 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 956CD812D4 Received: from tor.source.kernel.org (tor.source.kernel.org [IPv6:2600:3c04:e001:324:0:1991:8:25]) by smtp1.osuosl.org (Postfix) with ESMTPS id 956CD812D4 for ; Fri, 13 Feb 2026 20:34:49 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 44C6F6091C; Fri, 13 Feb 2026 20:34:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13816C116C6; Fri, 13 Feb 2026 20:34:45 +0000 (UTC) Date: Fri, 13 Feb 2026 12:34:44 -0800 From: Jakub Kicinski To: Larysa Zaremba Cc: bpf@vger.kernel.org, Claudiu Manoil , Vladimir Oltean , Wei Fang , Clark Wang , Andrew Lunn , "David S. Miller" , Eric Dumazet , Paolo Abeni , Tony Nguyen , Przemek Kitszel , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , KP Singh , Hao Luo , Jiri Olsa , Simon Horman , Shuah Khan , Alexander Lobakin , Maciej Fijalkowski , "Bastien Curutchet (eBPF Foundation)" , Tushar Vyavahare , Jason Xing , "Ricardo B. =?UTF-8?B?TWFybGnDqHJl?=" , Eelco Chaudron , Lorenzo Bianconi , Toke Hoiland-Jorgensen , imx@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kselftest@vger.kernel.org, Aleksandr Loktionov , Dragos Tatulea Message-ID: <20260213123444.12fd433e@kernel.org> In-Reply-To: <20260212183328.1883148-3-larysa.zaremba@intel.com> References: <20260212183328.1883148-2-larysa.zaremba@intel.com> <20260212183328.1883148-3-larysa.zaremba@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771014887; bh=XxUt9o01tkl2YeDC894gfSKrSV9JalAY+MmXygvGPhk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=hDp60Yyho4yXiHjPDWqvFUJnMKAiJv7mwRpUKs0th2GCzeNB+Froz1yzy6qvMW7MR Fau2WLI+fY9sPaBEFU577fpBUmaZt3TjJWBWKloUV9JpEkQCxPt+RgCRzP/0X8byCs lzxfCwb6bpODUIUEXWbcP3isLC9l9yuvBc6EbJWmqOkEwf4Bqvp5lbEuHNCj4VxcXU QUNKJeQTF2nRqwHbO2777R+lSnwQsn4FBRGdnE7kVFQOAFKzfg4/l+FyQbHOYu/d9E /YdFBaoWReY6379kNQ03msQ3Hhdrw6hwdAu2GYoFe00CPDhnxuOEweL6qsXDXBt9QF 9vuP2MXDPvBUw== X-Mailman-Original-Authentication-Results: smtp1.osuosl.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org X-Mailman-Original-Authentication-Results: smtp1.osuosl.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=hDp60Yyh Subject: Re: [Intel-wired-lan] [PATCH bpf v2 1/9] xdp: use modulo operation to calculate XDP frag tailroom X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" On Thu, 12 Feb 2026 19:33:16 +0100 Larysa Zaremba wrote: > - tailroom = rxq->frag_size - skb_frag_size(frag) - skb_frag_off(frag); > + tailroom = rxq->frag_size - skb_frag_size(frag) - > + skb_frag_off(frag) % rxq->frag_size; > if (unlikely(offset > tailroom)) Acked-by: Jakub Kicinski