From patchwork Fri Apr 12 15:55:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Gobert X-Patchwork-Id: 13628020 Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) (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 AF51185C52; Fri, 12 Apr 2024 15:56:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712937375; cv=none; b=AXLy5DhROhPXJpWyVsbCECRq42E5X96pPe8oEyKIaYrMTVGDMcXqNDfUHEhNjj5L8uDLjQAgycM46RpJpi8B1YrbDuPLO+feCnTmCNorprGk2Ug6PoaKE0JhN4NgDKjUVBnCajsTy9UHVimI0wmnn0iajJ9Bm4YyNPQQSFI/Wy4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712937375; c=relaxed/simple; bh=CWM8g/CIXJwPdo9qYSKWaUiBcAlUs3ZXqGZC+yTCa5s=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=LoA4KUqPAQe4lOxseKwvERgI2zJy8DFqk96JYLqUqLakJeftOsikid4sxaelqxi6G9MSsB1FpyLkC2XSJ0rsrrVca6G/13qXAiD3OMZ8QLiOFGTnM6vsTmOESEc/U6e9NRT8yFCR5iWZ3KNx7/bZgFTT6TGqqdZnb3AE7rjEmWE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=O7kc4ROG; arc=none smtp.client-ip=209.85.221.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="O7kc4ROG" Received: by mail-wr1-f51.google.com with SMTP id ffacd0b85a97d-346c5b83c6eso747887f8f.3; Fri, 12 Apr 2024 08:56:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1712937372; x=1713542172; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=bu3sEbh7xedZD3Kgac/kjn7z9acHHxetUgBU6xP5gBk=; b=O7kc4ROGEYg67sIB6T1RO3jx0uqug31DS8ZHBPOK3gPtRRteMWJ95uskqGFkYBo+sk bVIzTD/vUymr313pjtaG2fuJS8fKtxbWrItJpGJ1XdHDTd7pZ5HfPzwSBOTYqrT1lMED P1NI8baDPTe6COhtsf0UYI3mlrRBCf4iJbIUsBlF5A+mkb+VvaWbKdaWLaqvLKehNlct ORwvOQilqoeqDWIy5qERp/OGfEW/NIwm9wxL4Ow0XU+u/50icqM+RvH0M8ft4tIz4ErN oJfI4YStlicGhXcnlaib/ZdWY2kq6WlFmoH9RXe+2sbp67sVw1JY5R0ToM4KCmLx1Qmz alng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712937372; x=1713542172; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=bu3sEbh7xedZD3Kgac/kjn7z9acHHxetUgBU6xP5gBk=; b=uc3XNVmyY/o8RYQdJnZhX8LxAPuPCZ8/ePaU1NdFErSeDENCiMaJsKUhtlOfj6BP1f WKJU2lHL637z2J5bCJ5n2T8fKUzdaDG9sokP+HE0CKArUTlZKkPzcBPRdqhDKhtGK8n5 Zo2LpqMp1q/tRiCaTD+ncWg6y5vR9LYClij7SgWraBaftvDgJcLS2LNNRWDhnsD22oIs c2rXVMGuMdioLM3gv9g//fkXoJAQOSt5+nc5fullgPh7ZC6/RrTQnvCpIOqu8TuQudzA ceyz6gkwXbgcqmamtB5wbl57k+asSOhTFw8+ABcgSXKSY5CMCbAnCsUfzrf+/jjja94N VVSA== X-Forwarded-Encrypted: i=1; AJvYcCVPZX54MnYtyA/a8n6j84bkFY11aEC7LF3kPurOdvh5aV4vpfHHrOcpbKYe8BeNmmkKBtKWu987hqqAYzi37n8wtuS3+ilPXaa724b9XKoqnuScNAPoPRPdHPB1fnVJnq69EXNHNt/2CEL/yFxafx4GMrK70GmHmZnOqlAr6PRVOqiCEaDW X-Gm-Message-State: AOJu0YyaKJqmQbJfqkz/pQRH+y/H94R6xo3yWeJNT9JD/MmgBQo1NuDV lpbQq1z+UcW8W1cYq3iyZNPW2KvaA4GYJ8WHH+BYScwlNYJIPdZJ X-Google-Smtp-Source: AGHT+IF+kNepTzS+vyTA9aIEN4ndFMTXuXLMJP9SGHegD9ZH5zdAnPQ+knsC5bFPi9ZuJ46WKzxUOg== X-Received: by 2002:adf:f38f:0:b0:341:d833:1f7c with SMTP id m15-20020adff38f000000b00341d8331f7cmr1793215wro.70.1712937371803; Fri, 12 Apr 2024 08:56:11 -0700 (PDT) Received: from localhost ([146.70.204.204]) by smtp.gmail.com with ESMTPSA id d8-20020a5d5388000000b0034335f13570sm4550663wrv.116.2024.04.12.08.56.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Apr 2024 08:56:11 -0700 (PDT) From: Richard Gobert To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, dsahern@kernel.org, willemdebruijn.kernel@gmail.com, shuah@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Richard Gobert Subject: [PATCH net-next v7 0/3] net: gro: move p->{flush/flush_id} calculations to L4 Date: Fri, 12 Apr 2024 17:55:30 +0200 Message-Id: <20240412155533.115507-1-richardbgobert@gmail.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This patch series depends on commits in the series submitted to net. (https://lore.kernel.org/netdev/20240412152120.115067-1-richardbgobert@gmail.com/) The fields network_offset and inner_network_offset are added to napi_gro_cb, and are both set during the receive phase of GRO. This is then leveraged in the next commit to remove flush_id state from napi_gro_cb, and stateful code in {ipv6,inet}_gro_receive which may be unnecessarily complicated due to encapsulation support in GRO. 3rd patch adds tests for different flush_id flows in GRO. v6 -> v7: - Moved bug fixes to a separate submission in net - Added UDP fwd benchmark - v6: https://lore.kernel.org/all/20240410153423.107381-1-richardbgobert@gmail.com/ v5 -> v6: - Write inner_network_offset in vxlan and geneve - Ignore is_atomic when DF=0 - v5: https://lore.kernel.org/all/20240408141720.98832-1-richardbgobert@gmail.com/ v4 -> v5: - Add 1st commit - flush id checks in udp_gro_receive segment which can be backported by itself - Add TCP measurements for the 5th commit - Add flush id tests to ensure flush id logic is preserved in GRO - Simplify gro_inet_flush by removing a branch - v4: https://lore.kernel.org/all/202420325182543.87683-1-richardbgobert@gmail.com/ v3 -> v4: - Fix code comment and commit message typos - v3: https://lore.kernel.org/all/f939c84a-2322-4393-a5b0-9b1e0be8ed8e@gmail.com/ v2 -> v3: - Use napi_gro_cb instead of skb->{offset} - v2: https://lore.kernel.org/all/2ce1600b-e733-448b-91ac-9d0ae2b866a4@gmail.com/ v1 -> v2: - Pass p_off in *_gro_complete to fix UDP bug - Remove more conditionals and memory fetches from inet_gro_flush - v1: https://lore.kernel.org/netdev/e1d22505-c5f8-4c02-a997-64248480338b@gmail.com/ Richard Gobert (3): net: gro: add {inner_}network_offset to napi_gro_cb net: gro: move L3 flush checks to tcp_gro_receive and udp_gro_receive_segment selftests/net: add flush id selftests drivers/net/geneve.c | 1 + drivers/net/vxlan/vxlan_core.c | 1 + include/net/gro.h | 82 +++++++++++++++-- net/8021q/vlan_core.c | 2 + net/core/gro.c | 5 +- net/ethernet/eth.c | 1 + net/ipv4/af_inet.c | 46 +--------- net/ipv4/gre_offload.c | 1 + net/ipv4/tcp_offload.c | 15 +--- net/ipv4/udp_offload.c | 16 +--- net/ipv6/ip6_offload.c | 19 +--- tools/testing/selftests/net/gro.c | 144 ++++++++++++++++++++++++++++++ 12 files changed, 238 insertions(+), 95 deletions(-)