From patchwork Thu Nov 19 08:30:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= X-Patchwork-Id: 11916801 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F4C6C64E7A for ; Thu, 19 Nov 2020 08:31:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 23569246AD for ; Thu, 19 Nov 2020 08:31:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Pr1K1hz+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726699AbgKSIbk (ORCPT ); Thu, 19 Nov 2020 03:31:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726533AbgKSIbk (ORCPT ); Thu, 19 Nov 2020 03:31:40 -0500 Received: from mail-pf1-x443.google.com (mail-pf1-x443.google.com [IPv6:2607:f8b0:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B311DC0613CF; Thu, 19 Nov 2020 00:31:38 -0800 (PST) Received: by mail-pf1-x443.google.com with SMTP id 10so3775986pfp.5; Thu, 19 Nov 2020 00:31:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=HgluhhsOMbA+3BwJiOmeNOPCO4MFaX5rSDQzLBwWi5o=; b=Pr1K1hz+easnpV1l104M9bYIWLy7a0SXmsYoEQAyquoYWI8Z/WJS+rtZJ44po8aqLv +z8WunZS8gE0Uom3zH5bWH4ZLez2oqyA60r+Xyv1fZebESTPtYpqfYX4Vw6vCGtE0gei fO4qnAnAB8fHFT0fuHC2qHgeUUceQ04eTwvp3nVmWWUBWyMsvt1g74nLK51kX2NTPbVG Vz6wnsTxRX6+N+B+wWGLfGta3IP0BOZF+LttTdksbe+72aiq3c99LMgRmy/CiyUxOFsP gbMiJntE5bOGx31ra88HS9DdudqCQorgCcjGLlSqpFzCTMcQZ9JWo4/TCYgom6QvOR1j zK6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=HgluhhsOMbA+3BwJiOmeNOPCO4MFaX5rSDQzLBwWi5o=; b=Yygx7Wrz2MnhtuKBzsu7KnCNLdMQ56RKR9lcYvnTn6srVZPyak04hSimNflDos4I9Q X4LTwzf7oA7KIMc5pM4DTiBnI5fGMVmJmp+fi6qrhnLJ7nP/fhpa3zgNKvS1h/xJMQsZ HF79TSb7NIwUAvA6raz2cKGAQsy9aUZWwKjTvMtibLros8h34GvVHclQw28hQJ9R92bR YL+aYMyvtvCWt0+sRum0sKRe9F71a14X81eWrhfI3AqyX6gkUVHSGl/jeEfMcDa3+MhC BWqcddc/7+Je+UqTcZ5o1miYuffnpVUux9CZV46zSgZCZSj+BgA6wSMrJHEus4oRrWgt k8oA== X-Gm-Message-State: AOAM531jmn82EHDRch5ZCL3jg7n424AodOx+o/nRW8V9frhc9/ePj1UC WKcyWa/MZPKiQG+99QvpmiIWiaeaI9df4AyG X-Google-Smtp-Source: ABdhPJxsSSRTpgfdqn3VFVbYmTj5qw8HVZqWPnsgFzu8O87+VzNwAtGlBHKqQtQzG2harX5tbIyaRw== X-Received: by 2002:a17:90a:bc83:: with SMTP id x3mr3316766pjr.90.1605774697656; Thu, 19 Nov 2020 00:31:37 -0800 (PST) Received: from btopel-mobl.ger.intel.com ([192.55.55.43]) by smtp.gmail.com with ESMTPSA id r2sm5517713pji.55.2020.11.19.00.31.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Nov 2020 00:31:36 -0800 (PST) From: =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= To: netdev@vger.kernel.org, bpf@vger.kernel.org Cc: =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= , magnus.karlsson@intel.com, ast@kernel.org, daniel@iogearbox.net, maciej.fijalkowski@intel.com, sridhar.samudrala@intel.com, jesse.brandeburg@intel.com, qi.z.zhang@intel.com, kuba@kernel.org, edumazet@google.com, jonathan.lemon@gmail.com, maximmi@nvidia.com Subject: [PATCH bpf-next v3 07/10] samples/bpf: use recvfrom() in xdpsock/rxdrop Date: Thu, 19 Nov 2020 09:30:21 +0100 Message-Id: <20201119083024.119566-8-bjorn.topel@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201119083024.119566-1-bjorn.topel@gmail.com> References: <20201119083024.119566-1-bjorn.topel@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net From: Björn Töpel Start using recvfrom() the rxdrop scenario. Signed-off-by: Björn Töpel Acked-by: Magnus Karlsson --- samples/bpf/xdpsock_user.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 2567f0db5aca..f90111b95b2e 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -1170,7 +1170,7 @@ static inline void complete_tx_only(struct xsk_socket_info *xsk, } } -static void rx_drop(struct xsk_socket_info *xsk, struct pollfd *fds) +static void rx_drop(struct xsk_socket_info *xsk) { unsigned int rcvd, i; u32 idx_rx = 0, idx_fq = 0; @@ -1180,7 +1180,7 @@ static void rx_drop(struct xsk_socket_info *xsk, struct pollfd *fds) if (!rcvd) { if (xsk_ring_prod__needs_wakeup(&xsk->umem->fq)) { xsk->app_stats.rx_empty_polls++; - ret = poll(fds, num_socks, opt_timeout); + recvfrom(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, NULL); } return; } @@ -1191,7 +1191,7 @@ static void rx_drop(struct xsk_socket_info *xsk, struct pollfd *fds) exit_with_error(-ret); if (xsk_ring_prod__needs_wakeup(&xsk->umem->fq)) { xsk->app_stats.fill_fail_polls++; - ret = poll(fds, num_socks, opt_timeout); + recvfrom(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, NULL); } ret = xsk_ring_prod__reserve(&xsk->umem->fq, rcvd, &idx_fq); } @@ -1233,7 +1233,7 @@ static void rx_drop_all(void) } for (i = 0; i < num_socks; i++) - rx_drop(xsks[i], fds); + rx_drop(xsks[i]); if (benchmark_done) break;