From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) (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 5A8FA231A55; Fri, 25 Apr 2025 07:11:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745565119; cv=none; b=fy9baytJ4eSnFGgqwFG+RsY0i7G1x2nXROEEJFFhphH/Z3q9BEOHriNK/gvjhaul424jWVfMI9/jQkJYvmO2YBk0qQl4B0bBc7Stt5nLg3oOXy83vriCzA46pMjXBcbT5ZDRXokvoqPZ4nB4OlLN/m6LhB4ye3T5AlDo/sWy50I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745565119; c=relaxed/simple; bh=HEECyfZinc+wH1214D5sqHe2jbzMGQUAA//2Fpca0iU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=p8NPXFkxMUYGevJTYMHahZoEu4HsLhzmfAfIEuuxK05XnL4zTMZYOSzQY5VfTTpwF8ulmlhjULdCXWy1Vxlp7mXZNaMQX37uSuloiLvH7t2Vuf8b/Z/EoFpao1NfWKVTG4PBwQMhRS9R0o9EhhjQf1Belzk8oJ9KldXR6mMky04= 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=aSE5Wk7g; arc=none smtp.client-ip=209.85.214.181 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="aSE5Wk7g" Received: by mail-pl1-f181.google.com with SMTP id d9443c01a7336-22401f4d35aso23437345ad.2; Fri, 25 Apr 2025 00:11:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1745565117; x=1746169917; darn=vger.kernel.org; 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=LGgNXuFLvWdU6d7kOZ4c8+NmxWqqCA2URptaw+zqZE4=; b=aSE5Wk7gfETGS74gq9ERVmdwYHRum9FtP54DL9L3vPSi7YQtkmwXa86YtLWjgbK6mY YxQPbdCbadHHS1VbhcW+0Gz3CjGHgDT346yrZhKhgnZMC3kiYhs2f+KDsmz82qSk5pDi wyz6Y0haafafkho+e+nOpHdNXkciZ7+AbeCnn1exX8xY82lzDfl9r1FQAy2neLsdXsrL XZWsRIia1TPVoav6JxqCCIrtlR/ElRFX4qEULcaKSJGdqOEHuy+kxiTRkXzLwk+bPkK4 Mj/35ivAApanOE+aECmADEsSp2zIH+sS6xADTnCWO3/+KHi+PaVEWCnfl/p+PkTdn90p +s8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1745565117; x=1746169917; 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=LGgNXuFLvWdU6d7kOZ4c8+NmxWqqCA2URptaw+zqZE4=; b=JZN/KivYy2F9Sbq3/lkK+IDUfvSCE5tOINeeVJmf5zj6pWyuRrYuOrS7gn0dt74s6I cqVGje5bL0FmUFm5AhwyVKp5v5+RjeARiRJGf1RApi4Wy9g3mWAHUo28MXaXxCOfhjfv Go8XwHC/D35sghRUKoFKiNyt17DarK10aq59uQUMLXuX4dlSqxuJN5Pra/1R4ZAgiAzR vosDRCZtZWJtJjnpGScCweuSGz/BKbtZay6Hjh4EBa1/oKu6GfxMKYnrlToHcZjogjx/ AjjgeLZBXn7XpCKblAsI15mbxWqOsri/IAotxme/qqwr2KmIhQ1vT78XsFY0OR9uqFAL n4cQ== X-Forwarded-Encrypted: i=1; AJvYcCVH+/UhInUKeYCpOYliVrhouTux9KBnGAbpbQiTfajc9n4XyTHqDl0F3edNYxIbRTC4Kr4=@vger.kernel.org, AJvYcCVY47bERyRXW/YfGrcBppfn1B0vD13LyYlDOJ5CH3j7mhZMkerpWO6mKz7Q2N1CUVULUizeHQ59@vger.kernel.org, AJvYcCXfZLrpeV61CBNFW1f3A5wcbaWLNcTafWbfj23CqVAN76YjcEiEopxFBxh9aDqPaX7qnIE06TBQzsXGpHH/@vger.kernel.org X-Gm-Message-State: AOJu0Yyr+LxrtaPsnIOm8BEqjv8BZuJK3rI8+CYdBPsZx+blNYz65Z5t 73d1m46wQBYNOccu6/KLERxrH+bYIyaj18L8kszf+NG/alNWW3E2 X-Gm-Gg: ASbGncuEMbeo5o9sVd35sSrRIo/QWu0koxeq4FhHnYL50N+p4CJ1GAGwfT+u3la3ep2 hDWZPUkREV06OPZE4LoUbp7hwNW/fSShG5YVVMvPzy9YvHP7UhAJ9DMMprxZXiKArR4EVVlWVLI Lmzr6NWJtA/cpeK1w9HWAHUfmYCRoG5WDqHxjtigwsJFcyB2Qj6dArSjQ2iXIEHJcpqigsejNSl Qi1bgrjecnTUWKLDS6Ld1FQyckOwrzqPhgdlLQjo8ecf9Bjp821ocNKgm3B8/JEj7BD5nufnNyW yMUFTYsjY8lyaOy4V3qqSj41V/SwTkaUY+mQ+mL6IllrsUYumjNCRTsqHXD5UMtKFGU= X-Google-Smtp-Source: AGHT+IFpuBEDWJ4Jdf5U2gn8bRZq3DJLbe8GQt+jgcamP/LZqySE7mAq8G00x6oy8xUhODZjxUMyRQ== X-Received: by 2002:a17:903:2987:b0:223:f408:c3cf with SMTP id d9443c01a7336-22dbf5eaa52mr19859965ad.21.1745565117500; Fri, 25 Apr 2025 00:11:57 -0700 (PDT) Received: from minh.192.168.1.1 ([2001:ee0:4f0e:fb30:1c5b:42af:3362:3840]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-22db51028basm25322425ad.196.2025.04.25.00.11.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Apr 2025 00:11:57 -0700 (PDT) From: Bui Quang Minh To: virtualization@lists.linux.dev Cc: "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , Andrew Lunn , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , "David S. Miller" , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, Bui Quang Minh Subject: [PATCH v6 2/4] selftests: net: add flag to force zerocopy mode in xdp_helper Date: Fri, 25 Apr 2025 14:10:16 +0700 Message-ID: <20250425071018.36078-3-minhquangbui99@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250425071018.36078-1-minhquangbui99@gmail.com> References: <20250425071018.36078-1-minhquangbui99@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This commit adds an optional -z flag to xdp_helper. When this flag is provided, the XDP socket binding is forced to be in zerocopy mode. Signed-off-by: Bui Quang Minh --- tools/testing/selftests/net/lib/xdp_helper.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/lib/xdp_helper.c b/tools/testing/selftests/net/lib/xdp_helper.c index d5bb8ac33efa..6327863cafa6 100644 --- a/tools/testing/selftests/net/lib/xdp_helper.c +++ b/tools/testing/selftests/net/lib/xdp_helper.c @@ -17,6 +17,12 @@ #define NUM_DESC (UMEM_SZ / 2048) +static void print_usage(const char *bin) +{ + fprintf(stderr, "Usage: %s ifindex queue_id [-z]\n\n" + "where:\n\t-z: force zerocopy mode", bin); +} + /* this is a simple helper program that creates an XDP socket and does the * minimum necessary to get bind() to succeed. * @@ -36,8 +42,8 @@ int main(int argc, char **argv) int sock_fd; int queue; - if (argc != 3) { - fprintf(stderr, "Usage: %s ifindex queue_id\n", argv[0]); + if (argc != 3 && argc != 4) { + print_usage(argv[0]); return 1; } @@ -87,6 +93,15 @@ int main(int argc, char **argv) sxdp.sxdp_queue_id = queue; sxdp.sxdp_flags = 0; + if (argc > 3) { + if (!strcmp(argv[3], "-z")) { + sxdp.sxdp_flags = XDP_ZEROCOPY; + } else { + print_usage(argv[0]); + return 1; + } + } + if (bind(sock_fd, (struct sockaddr *)&sxdp, sizeof(sxdp)) != 0) { munmap(umem_area, UMEM_SZ); perror("bind failed"); -- 2.43.0