From patchwork Wed Nov 25 18:37:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weqaar Janjua X-Patchwork-Id: 11932053 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=unavailable 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 CBE27C56202 for ; Wed, 25 Nov 2020 18:38:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6A50520674 for ; Wed, 25 Nov 2020 18:38:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nI+7xeyp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733133AbgKYSi3 (ORCPT ); Wed, 25 Nov 2020 13:38:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50560 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729679AbgKYSi3 (ORCPT ); Wed, 25 Nov 2020 13:38:29 -0500 Received: from mail-wm1-x32f.google.com (mail-wm1-x32f.google.com [IPv6:2a00:1450:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D406C0613D4; Wed, 25 Nov 2020 10:38:28 -0800 (PST) Received: by mail-wm1-x32f.google.com with SMTP id s13so3063933wmh.4; Wed, 25 Nov 2020 10:38:28 -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=aatPO7YDsL7B5Uxzmh/eplfBMl4ij9VUGkMtmDCawWw=; b=nI+7xeypL5nJ7AgBwVskvDD4TcxHLJis/9m7tym+n39WNuUqWUrHb5wfEAbmn88y4x yvIn0k4XHJxsB2AtbH+C8QmdnhMAPUzPC7KLbRKgbAY7rdTSw/x+5JEOjNnuLubSjult hNK4RvlElxgvizvieDtHAuI/9jI9DMJ19y+KIH2EEmbffatrJ3qNk79XpXuSGoCMaaxp tIOwdsbgDkMBbAQTZwdIrZsFiBzX7Sdp5t1+pU3Ob5dvFxssCBmG4SamvwTNo0/1SNPf pVGCvf6tWXPoUZrP85rU2bO5QZrDmg966Gzy7PeUZrl6zCJLMqKP9wYYmarhcjJ1nvjh I9HQ== 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=aatPO7YDsL7B5Uxzmh/eplfBMl4ij9VUGkMtmDCawWw=; b=uS/o5m/frhPjWvlgXZK3diX0j4dKRrbj2MZcN4IIvsMtPb8LejvwLmHztSE9NhnSou mSCn1QYNFwpWmSzknItzxcbYyScSFkht1UM88pVNLneQGkiyIn4mL4/K6/Y6ERRCvgeQ KuhhpIVekmliLHM+V8hDPmGXwsSzwXsvRuTu6jhxi813/F1pHaaiYouDN4fqNuOSI9ES T+gmv+qQxSRKaP3VCuf32mJ/l+0H1I1H6mtYY0/xT+Gd2sbId/bWMghBvdCJnWVgcgIC Zo4U2bpIFGol2rgazk6zvCSz4XU7RN4ft/s3KAHFnK16CJCJVqeld0GHPA+R0tWGl1U7 A0sA== X-Gm-Message-State: AOAM53189FvJPo/ASSbWNaDzn5xTvkQrItE5dF5kO+KGg5J8qyMD2Yp6 +oZp591Wx0YsKYkqo1E1DyG2NB613zjoD+Nq X-Google-Smtp-Source: ABdhPJy90CUdL8OmTdpLH+dIyH742FSzU9LTJyFi6WYjNb+vLXd6PAco6GosW0Dni0bNfdPFn3OUOw== X-Received: by 2002:a1c:e289:: with SMTP id z131mr5379267wmg.80.1606329506478; Wed, 25 Nov 2020 10:38:26 -0800 (PST) Received: from kernel-dev.chello.ie ([80.111.136.190]) by smtp.gmail.com with ESMTPSA id h2sm5830035wrv.76.2020.11.25.10.38.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Nov 2020 10:38:25 -0800 (PST) From: Weqaar Janjua X-Google-Original-From: Weqaar Janjua To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org, yhs@fb.com, magnus.karlsson@gmail.com, bjorn.topel@intel.com Cc: Weqaar Janjua , shuah@kernel.org, skhan@linuxfoundation.org, linux-kselftest@vger.kernel.org, anders.roxell@linaro.org, jonathan.lemon@gmail.com Subject: [PATCH bpf-next v3 4/5] selftests/bpf: xsk selftests - Socket Teardown - SKB, DRV Date: Wed, 25 Nov 2020 18:37:48 +0000 Message-Id: <20201125183749.13797-5-weqaar.a.janjua@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201125183749.13797-1-weqaar.a.janjua@intel.com> References: <20201125183749.13797-1-weqaar.a.janjua@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Adds following tests: 1. AF_XDP SKB mode c. Socket Teardown Create a Tx and a Rx socket, Tx from one socket, Rx on another. Destroy both sockets, then repeat multiple times. Only nopoll mode is used 2. AF_XDP DRV/Native mode c. Socket Teardown * Only copy mode is supported because veth does not currently support zero-copy mode Signed-off-by: Weqaar Janjua --- tools/testing/selftests/bpf/test_xsk.sh | 24 ++++++++++++++++ tools/testing/selftests/bpf/xdpxceiver.c | 35 +++++++++++++++++++++--- tools/testing/selftests/bpf/xdpxceiver.h | 2 ++ 3 files changed, 57 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index 375f9590db90..76de8080092d 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -176,6 +176,30 @@ retval=$? test_status $retval "${TEST_NAME}" statusList+=($retval) +### TEST 5 +TEST_NAME="SKB SOCKET TEARDOWN" + +vethXDPgeneric ${VETH0} ${VETH1} ${NS1} + +params=("-S" "-T") +execxdpxceiver params + +retval=$? +test_status $retval "${TEST_NAME}" +statusList+=($retval) + +### TEST 6 +TEST_NAME="DRV SOCKET TEARDOWN" + +vethXDPnative ${VETH0} ${VETH1} ${NS1} + +params=("-N" "-T") +execxdpxceiver params + +retval=$? +test_status $retval "${TEST_NAME}" +statusList+=($retval) + ## END TESTS cleanup_exit ${VETH0} ${VETH1} ${NS1} diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 3027247bbb4e..62560e058111 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -26,6 +26,9 @@ * generic XDP path. XDP hook from netif_receive_skb(). * a. nopoll - soft-irq processing * b. poll - using poll() syscall + * c. Socket Teardown + * Create a Tx and a Rx socket, Tx from one socket, Rx on another. Destroy + * both sockets, then repeat multiple times. Only nopoll mode is used * * 2. AF_XDP DRV/Native mode * Works on any netdevice with XDP_REDIRECT support, driver dependent. Processes @@ -33,10 +36,11 @@ * hook available just after DMA of buffer descriptor. * a. nopoll * b. poll + * c. Socket Teardown * - Only copy mode is supported because veth does not currently support * zero-copy mode * - * Total tests: 4 + * Total tests: 6 * * Flow: * ----- @@ -96,7 +100,8 @@ static void __exit_with_error(int error, const char *file, const char *func, int #define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, __LINE__) #define print_ksft_result(void)\ - (ksft_test_result_pass("PASS: %s %s\n", uut ? "DRV" : "SKB", opt_poll ? "POLL" : "NOPOLL")) + (ksft_test_result_pass("PASS: %s %s %s\n", uut ? "DRV" : "SKB", opt_poll ? "POLL" :\ + "NOPOLL", opt_teardown ? "Socket Teardown" : "")) static void pthread_init_mutex(void) { @@ -321,6 +326,7 @@ static struct option long_options[] = { {"xdp-skb", no_argument, 0, 'S'}, {"xdp-native", no_argument, 0, 'N'}, {"copy", no_argument, 0, 'c'}, + {"tear-down", no_argument, 0, 'T'}, {"debug", optional_argument, 0, 'D'}, {"tx-pkt-count", optional_argument, 0, 'C'}, {0, 0, 0, 0} @@ -337,6 +343,7 @@ static void usage(const char *prog) " -S, --xdp-skb=n Use XDP SKB mode\n" " -N, --xdp-native=n Enforce XDP DRV (native) mode\n" " -c, --copy Force copy mode\n" + " -T, --tear-down Tear down sockets by repeatedly recreating them\n" " -D, --debug Debug mode - dump packets L2 - L5\n" " -C, --tx-pkt-count=n Number of packets to send\n"; ksft_print_msg(str, prog); @@ -427,7 +434,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "i:q:pSNcDC:", long_options, &option_index); + c = getopt_long(argc, argv, "i:q:pSNcTDC:", long_options, &option_index); if (c == -1) break; @@ -465,6 +472,9 @@ static void parse_command_line(int argc, char **argv) case 'c': opt_xdp_bind_flags |= XDP_COPY; break; + case 'T': + opt_teardown = 1; + break; case 'D': debug_pkt_dump = 1; break; @@ -853,6 +863,9 @@ static void *worker_testapp_validate(void *arg) ksft_print_msg("Received %d packets on interface %s\n", pkt_counter, ((struct ifobject *)arg)->ifname); + + if (opt_teardown) + ksft_print_msg("Destroying socket\n"); } xsk_socket__delete(((struct ifobject *)arg)->xsk->xsk); @@ -898,6 +911,20 @@ static void testapp_validate(void) free(pkt_buf); } + if (!opt_teardown) + print_ksft_result(); +} + +static void testapp_sockets(void) +{ + for (int i = 0; i < MAX_TEARDOWN_ITER; i++) { + pkt_counter = 0; + prev_pkt = -1; + sigvar = 0; + ksft_print_msg("Creating socket\n"); + testapp_validate(); + } + print_ksft_result(); } @@ -964,7 +991,7 @@ int main(int argc, char **argv) ksft_set_plan(1); - testapp_validate(); + opt_teardown ? testapp_sockets() : testapp_validate(); for (int i = 0; i < MAX_INTERFACES; i++) free(ifdict[i]); diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index dba47e818466..9d2670f28d86 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -21,6 +21,7 @@ #define MAX_INTERFACE_NAME_CHARS 7 #define MAX_INTERFACES_NAMESPACE_CHARS 10 #define MAX_SOCKS 1 +#define MAX_TEARDOWN_ITER 10 #define PKT_HDR_SIZE (sizeof(struct ethhdr) + sizeof(struct iphdr) + \ sizeof(struct udphdr)) #define MIN_PKT_SIZE 64 @@ -55,6 +56,7 @@ static u32 opt_xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST; static int opt_queue; static int opt_pkt_count; static int opt_poll; +static int opt_teardown; static u32 opt_xdp_bind_flags = XDP_USE_NEED_WAKEUP; static u8 pkt_data[XSK_UMEM__DEFAULT_FRAME_SIZE]; static u32 pkt_counter;