From patchwork Tue Aug 8 03:19:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?6buE5p2w?= X-Patchwork-Id: 13345664 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 06D3D15AB for ; Tue, 8 Aug 2023 03:21:19 +0000 (UTC) Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A319121 for ; Mon, 7 Aug 2023 20:21:12 -0700 (PDT) Received: by mail-pl1-x629.google.com with SMTP id d9443c01a7336-1bba04b9df3so45869765ad.0 for ; Mon, 07 Aug 2023 20:21:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1691464872; x=1692069672; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=vNrm/+UjyC6jP3361KhAbnju37DBvc3v6PBY22LsM1M=; b=khfL3k+d/CGznwaO5bu9+cRGuRQ6fYxlH9gn4KFfrTBbf9tNYQ6PkS2QLz2ndsXr7u ZZFyAYrq4pkWZ2egL0T8+F1oRE2BdqG2AchQKzk5rpmHiJn7brKTCQ8ATfQT7sFIWFge +wJcsLzJca4mkXRRBfJXZfKyNTBPlv+eL9czPa03R4sohsTcUYnfsQxbhSXxU25FemRt iejLrUhpyeo72CMnzwLsp9SuIrXP3m4KaE4DHI1lDQX6YY5lFuWPo3Vo9fSW3SuO+lAg gxB6SIK1coQKqnReEqyCG/Z1l38wetEMXmr5Avzcf+u4KBASxQT7KEpJWvcaZOhS10vC fb8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691464872; x=1692069672; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=vNrm/+UjyC6jP3361KhAbnju37DBvc3v6PBY22LsM1M=; b=QX15ux7hMJ3TO0bgIQ9UTXB5frYS/35EYQp2LMF5kWOV3Kseq59YcP0MAetBcaa7n8 LudVHcBFYjmDA3frYFlyEq/ofLZCTjoFjqyoBJPwOem4yAY7O+rVJiF7GS2LXCI46Ca4 FfK+92H3bDcJlXJBEzzLIkkoaKnC+f7m3Ag5OqXcfhRDuB6sVClJJHTnl6eZX4nR0D6o gw/KcuRG1myECi617vad1WI+3V4lcFY3OyVfNqzxlJ3wlDZYJjHMlKO/+qA2zDklRw8D iHyVIHMhfWDvzJ8EOTIbCPHahIm5iVegdDqAF5Hm7zje/XKF2cQIR0D5C+AyvYM0eFJq jHUw== X-Gm-Message-State: AOJu0YxZj1QkJVXR0qH6p+UUgRsDxhlbpTquG4CLkmx2MgoYZT5Vz8w0 3M44mHa2kAGIfHkFQZnU513inQ== X-Google-Smtp-Source: AGHT+IEf+1UGY33nl/NwIi62HwrnmxDbqQr/9EwPpV2GjIISAPneNKJbTvSnXmVCy/syiT18tgdayw== X-Received: by 2002:a17:902:6909:b0:1b8:9461:6729 with SMTP id j9-20020a170902690900b001b894616729mr10585584plk.2.1691464871774; Mon, 07 Aug 2023 20:21:11 -0700 (PDT) Received: from C02FG34NMD6R.bytedance.net ([2408:8656:30f8:e020::b]) by smtp.gmail.com with ESMTPSA id 13-20020a170902c10d00b001b896686c78sm7675800pli.66.2023.08.07.20.21.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 20:21:11 -0700 (PDT) From: Albert Huang To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: Albert Huang , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= , Magnus Karlsson , Maciej Fijalkowski , Jonathan Lemon , Pavel Begunkov , Yunsheng Lin , Kees Cook , Richard Gobert , "open list:NETWORKING DRIVERS" , open list , "open list:XDP (eXpress Data Path)" Subject: [RFC v3 Optimizing veth xsk performance 7/9] sk_buff: add destructor_arg_xsk_pool for zero copy Date: Tue, 8 Aug 2023 11:19:11 +0800 Message-Id: <20230808031913.46965-8-huangjie.albert@bytedance.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20230808031913.46965-1-huangjie.albert@bytedance.com> References: <20230808031913.46965-1-huangjie.albert@bytedance.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-State: RFC this member is add for dummy dev to suppot zero copy Signed-off-by: Albert Huang --- include/linux/skbuff.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 16a49ba534e4..db999056022e 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -592,6 +592,8 @@ struct skb_shared_info { /* Intermediate layers must ensure that destructor_arg * remains valid until skb destructor */ void * destructor_arg; + /* just for dummy device xsk zero copy */ + void *destructor_arg_xsk_pool; /* must be last field, see pskb_expand_head() */ skb_frag_t frags[MAX_SKB_FRAGS];