From patchwork Wed Feb 17 16:02:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ciara Loftus X-Patchwork-Id: 12091885 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=-16.7 required=3.0 tests=BAYES_00, 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 C8C2FC433E0 for ; Wed, 17 Feb 2021 16:34:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 871D664DFF for ; Wed, 17 Feb 2021 16:34:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234264AbhBQQdu (ORCPT ); Wed, 17 Feb 2021 11:33:50 -0500 Received: from mga03.intel.com ([134.134.136.65]:47632 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234152AbhBQQdo (ORCPT ); Wed, 17 Feb 2021 11:33:44 -0500 IronPort-SDR: XExV0DzDMslHEeksixUtvdTuuJ1X+v3Y/WPvjBQ0qHXxqUA8Ms9XEF74+DY/MNHYy05WF8mhkJ 4KkRUnlLDGXg== X-IronPort-AV: E=McAfee;i="6000,8403,9897"; a="183315338" X-IronPort-AV: E=Sophos;i="5.81,184,1610438400"; d="scan'208";a="183315338" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Feb 2021 08:33:02 -0800 IronPort-SDR: d3E9IN1aM5ACzcgEsNY/5anEfR0hJ4MGTSa+vuSNVal+LiVzbkp2S66pN18Z9KbUcsXd0DfQUh HXO3q5gKM6HQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,184,1610438400"; d="scan'208";a="494184865" Received: from silpixa00399839.ir.intel.com (HELO localhost.localdomain) ([10.237.222.142]) by fmsmga001.fm.intel.com with ESMTP; 17 Feb 2021 08:33:00 -0800 From: Ciara Loftus To: netdev@vger.kernel.org, bpf@vger.kernel.org, magnus.karlsson@intel.com, bjorn@kernel.org, weqaar.a.janjua@intel.com Cc: Ciara Loftus Subject: [PATCH bpf-next 1/4] selftest/bpf: make xsk tests less verbose Date: Wed, 17 Feb 2021 16:02:11 +0000 Message-Id: <20210217160214.7869-2-ciara.loftus@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210217160214.7869-1-ciara.loftus@intel.com> References: <20210217160214.7869-1-ciara.loftus@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net From: Magnus Karlsson Make the xsk tests less verbose by only printing the essentials. Currently, it is hard to see if the tests passed or not due to all the printouts. Move the extra printouts to a verbose option, if further debugging is needed when a problem arises. To run the xsk tests with verbose output: ./test_xsk.sh -v Signed-off-by: Magnus Karlsson Signed-off-by: Ciara Loftus Acked-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/test_xsk.sh | 24 ++++++++++++----- tools/testing/selftests/bpf/xdpxceiver.c | 31 +++++++++++++--------- tools/testing/selftests/bpf/xdpxceiver.h | 13 +++++---- tools/testing/selftests/bpf/xsk_prereqs.sh | 9 +++---- 4 files changed, 47 insertions(+), 30 deletions(-) diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index 88a7483eaae4..91127a5be90d 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -74,10 +74,11 @@ . xsk_prereqs.sh -while getopts c flag +while getopts "cv" flag do case "${flag}" in c) colorconsole=1;; + v) verbose=1;; esac done @@ -95,13 +96,17 @@ NS1=af_xdp${VETH1_POSTFIX} MTU=1500 setup_vethPairs() { - echo "setting up ${VETH0}: namespace: ${NS0}" + if [[ $verbose -eq 1 ]]; then + echo "setting up ${VETH0}: namespace: ${NS0}" + fi ip netns add ${NS1} ip link add ${VETH0} type veth peer name ${VETH1} if [ -f /proc/net/if_inet6 ]; then echo 1 > /proc/sys/net/ipv6/conf/${VETH0}/disable_ipv6 fi - echo "setting up ${VETH1}: namespace: ${NS1}" + if [[ $verbose -eq 1 ]]; then + echo "setting up ${VETH1}: namespace: ${NS1}" + fi ip link set ${VETH1} netns ${NS1} ip netns exec ${NS1} ip link set ${VETH1} mtu ${MTU} ip link set ${VETH0} mtu ${MTU} @@ -125,7 +130,10 @@ echo "${VETH0}:${VETH1},${NS1}" > ${SPECFILE} validate_veth_spec_file -echo "Spec file created: ${SPECFILE}" +if [[ $verbose -eq 1 ]]; then + echo "Spec file created: ${SPECFILE}" + VERBOSE_ARG="-v" +fi test_status $retval "${TEST_NAME}" @@ -136,12 +144,16 @@ statusList=() ### TEST 1 TEST_NAME="XSK KSELFTEST FRAMEWORK" -echo "Switching interfaces [${VETH0}, ${VETH1}] to XDP Generic mode" +if [[ $verbose -eq 1 ]]; then + echo "Switching interfaces [${VETH0}, ${VETH1}] to XDP Generic mode" +fi vethXDPgeneric ${VETH0} ${VETH1} ${NS1} retval=$? if [ $retval -eq 0 ]; then - echo "Switching interfaces [${VETH0}, ${VETH1}] to XDP Native mode" + if [[ $verbose -eq 1 ]]; then + echo "Switching interfaces [${VETH0}, ${VETH1}] to XDP Native mode" + fi vethXDPnative ${VETH0} ${VETH1} ${NS1} fi diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index f4a96d5ff524..8af746c9a6b6 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -341,6 +341,7 @@ static struct option long_options[] = { {"tear-down", no_argument, 0, 'T'}, {"bidi", optional_argument, 0, 'B'}, {"debug", optional_argument, 0, 'D'}, + {"verbose", no_argument, 0, 'v'}, {"tx-pkt-count", optional_argument, 0, 'C'}, {0, 0, 0, 0} }; @@ -359,6 +360,7 @@ static void usage(const char *prog) " -T, --tear-down Tear down sockets by repeatedly recreating them\n" " -B, --bidi Bi-directional sockets test\n" " -D, --debug Debug mode - dump packets L2 - L5\n" + " -v, --verbose Verbose output\n" " -C, --tx-pkt-count=n Number of packets to send\n"; ksft_print_msg(str, prog); } @@ -392,7 +394,7 @@ static void *nsswitchthread(void *args) ksft_test_result_fail("ERROR: [%s] interface \"%s\" does not exist\n", __func__, ifdict[targs->idx]->ifname); } else { - ksft_print_msg("Interface found: %s\n", ifdict[targs->idx]->ifname); + print_verbose("Interface found: %s\n", ifdict[targs->idx]->ifname); targs->retptr = true; } } @@ -422,7 +424,7 @@ static int validate_interfaces(void) pthread_join(ns_thread, NULL); if (targs->retptr) - ksft_print_msg("NS switched: %s\n", ifdict[i]->nsname); + print_verbose("NS switched: %s\n", ifdict[i]->nsname); free(targs); } else { @@ -432,7 +434,7 @@ static int validate_interfaces(void) ("ERROR: interface \"%s\" does not exist\n", ifdict[i]->ifname); ret = false; } else { - ksft_print_msg("Interface found: %s\n", ifdict[i]->ifname); + print_verbose("Interface found: %s\n", ifdict[i]->ifname); } } } @@ -446,7 +448,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "i:q:pSNcTBDC:", long_options, &option_index); + c = getopt_long(argc, argv, "i:q:pSNcTBDC:v", long_options, &option_index); if (c == -1) break; @@ -497,6 +499,9 @@ static void parse_command_line(int argc, char **argv) case 'C': opt_pkt_count = atoi(optarg); break; + case 'v': + opt_verbose = 1; + break; default: usage(basename(argv[0])); ksft_exit_xfail(); @@ -714,7 +719,7 @@ static void worker_pkt_dump(void) int payload = *((uint32_t *)(pkt_buf[iter]->payload + PKT_HDR_SIZE)); if (payload == EOT) { - ksft_print_msg("End-of-transmission frame received\n"); + print_verbose("End-of-transmission frame received\n"); fprintf(stdout, "---------------------------------------\n"); break; } @@ -746,7 +751,7 @@ static void worker_pkt_validate(void) } if (payloadseqnum == EOT) { - ksft_print_msg("End-of-transmission frame received: PASS\n"); + print_verbose("End-of-transmission frame received: PASS\n"); sigvar = 1; break; } @@ -836,7 +841,7 @@ static void *worker_testapp_validate(void *arg) usleep(USLEEP_MAX); } - ksft_print_msg("Interface [%s] vector [Tx]\n", ifobject->ifname); + print_verbose("Interface [%s] vector [Tx]\n", ifobject->ifname); for (int i = 0; i < num_frames; i++) { /*send EOT frame */ if (i == (num_frames - 1)) @@ -850,7 +855,7 @@ static void *worker_testapp_validate(void *arg) gen_eth_frame(ifobject->umem, i * XSK_UMEM__DEFAULT_FRAME_SIZE); } - ksft_print_msg("Sending %d packets on interface %s\n", + print_verbose("Sending %d packets on interface %s\n", (opt_pkt_count - 1), ifobject->ifname); tx_only_all(ifobject); } else if (ifobject->fv.vector == rx) { @@ -860,7 +865,7 @@ static void *worker_testapp_validate(void *arg) if (!bidi_pass) thread_common_ops(ifobject, bufs, &sync_mutex_tx, &spinning_rx); - ksft_print_msg("Interface [%s] vector [Rx]\n", ifobject->ifname); + print_verbose("Interface [%s] vector [Rx]\n", ifobject->ifname); xsk_populate_fill_ring(ifobject->umem); TAILQ_INIT(&head); @@ -890,11 +895,11 @@ static void *worker_testapp_validate(void *arg) break; } - ksft_print_msg("Received %d packets on interface %s\n", + print_verbose("Received %d packets on interface %s\n", pkt_counter, ifobject->ifname); if (opt_teardown) - ksft_print_msg("Destroying socket\n"); + print_verbose("Destroying socket\n"); } if (!opt_bidi || bidi_pass) { @@ -914,7 +919,7 @@ static void testapp_validate(void) if (opt_bidi && bidi_pass) { pthread_init_mutex(); if (!switching_notify) { - ksft_print_msg("Switching Tx/Rx vectors\n"); + print_verbose("Switching Tx/Rx vectors\n"); switching_notify++; } } @@ -974,7 +979,7 @@ static void testapp_sockets(void) pkt_counter = 0; prev_pkt = -1; sigvar = 0; - ksft_print_msg("Creating socket\n"); + print_verbose("Creating socket\n"); testapp_validate(); opt_bidi ? bidi_pass++ : bidi_pass; } diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 0e9f9b7e61c2..f66f399dfb2d 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -42,6 +42,8 @@ #define POLL_TMOUT 1000 #define NEED_WAKEUP true +#define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0) + typedef __u32 u32; typedef __u16 u16; typedef __u8 u8; @@ -51,11 +53,11 @@ enum TESTS { ORDER_CONTENT_VALIDATE_XDP_DRV = 1, }; -u8 uut; -u8 debug_pkt_dump; -u32 num_frames; -u8 switching_notify; -u8 bidi_pass; +static u8 uut; +static u8 debug_pkt_dump; +static u32 num_frames; +static u8 switching_notify; +static u8 bidi_pass; static u32 opt_xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST; static int opt_queue; @@ -64,6 +66,7 @@ static int opt_poll; static int opt_teardown; static int opt_bidi; static u32 opt_xdp_bind_flags = XDP_USE_NEED_WAKEUP; +static u8 opt_verbose; static u8 pkt_data[XSK_UMEM__DEFAULT_FRAME_SIZE]; static u32 pkt_counter; static u32 prev_pkt = -1; diff --git a/tools/testing/selftests/bpf/xsk_prereqs.sh b/tools/testing/selftests/bpf/xsk_prereqs.sh index 9d54c4645127..ef8c5b31f4b6 100755 --- a/tools/testing/selftests/bpf/xsk_prereqs.sh +++ b/tools/testing/selftests/bpf/xsk_prereqs.sh @@ -82,24 +82,21 @@ clear_configs() { if [ $(ip netns show | grep $3 &>/dev/null; echo $?;) == 0 ]; then [ $(ip netns exec $3 ip link show $2 &>/dev/null; echo $?;) == 0 ] && - { echo "removing link $1:$2"; ip netns exec $3 ip link del $2; } - echo "removing ns $3" + { ip netns exec $3 ip link del $2; } ip netns del $3 fi #Once we delete a veth pair node, the entire veth pair is removed, #this is just to be cautious just incase the NS does not exist then #veth node inside NS won't get removed so we explicitly remove it [ $(ip link show $1 &>/dev/null; echo $?;) == 0 ] && - { echo "removing link $1"; ip link del $1; } + { ip link del $1; } if [ -f ${SPECFILE} ]; then - echo "removing spec file:" ${SPECFILE} rm -f ${SPECFILE} fi } cleanup_exit() { - echo "cleaning up..." clear_configs $1 $2 $3 } @@ -131,5 +128,5 @@ execxdpxceiver() copy[$index]=${!current} done - ./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} ${copy[*]} -C ${NUMPKTS} + ./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} ${copy[*]} -C ${NUMPKTS} ${VERBOSE_ARG} } From patchwork Wed Feb 17 16:02:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ciara Loftus X-Patchwork-Id: 12091883 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=-16.7 required=3.0 tests=BAYES_00, 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 2EA6CC433E0 for ; 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d="scan'208";a="494184872" Received: from silpixa00399839.ir.intel.com (HELO localhost.localdomain) ([10.237.222.142]) by fmsmga001.fm.intel.com with ESMTP; 17 Feb 2021 08:33:02 -0800 From: Ciara Loftus To: netdev@vger.kernel.org, bpf@vger.kernel.org, magnus.karlsson@intel.com, bjorn@kernel.org, weqaar.a.janjua@intel.com Cc: Ciara Loftus Subject: [PATCH bpf-next 2/4] selftests/bpf: expose debug arg to shell script for xsk tests Date: Wed, 17 Feb 2021 16:02:12 +0000 Message-Id: <20210217160214.7869-3-ciara.loftus@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210217160214.7869-1-ciara.loftus@intel.com> References: <20210217160214.7869-1-ciara.loftus@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Launching xdpxceiver with -D enables debug mode. Make it possible to pass this flag to the app via the test_xsk.sh shell script like so: ./test_xsk.sh -d Signed-off-by: Ciara Loftus --- tools/testing/selftests/bpf/test_xsk.sh | 7 ++++++- tools/testing/selftests/bpf/xsk_prereqs.sh | 3 ++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index 91127a5be90d..a72f8ed2932d 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -74,11 +74,12 @@ . xsk_prereqs.sh -while getopts "cv" flag +while getopts "cvd" flag do case "${flag}" in c) colorconsole=1;; v) verbose=1;; + d) debug=1;; esac done @@ -135,6 +136,10 @@ if [[ $verbose -eq 1 ]]; then VERBOSE_ARG="-v" fi +if [[ $debug -eq 1 ]]; then + DEBUG_ARG="-D" +fi + test_status $retval "${TEST_NAME}" ## START TESTS diff --git a/tools/testing/selftests/bpf/xsk_prereqs.sh b/tools/testing/selftests/bpf/xsk_prereqs.sh index ef8c5b31f4b6..d95018051fcc 100755 --- a/tools/testing/selftests/bpf/xsk_prereqs.sh +++ b/tools/testing/selftests/bpf/xsk_prereqs.sh @@ -128,5 +128,6 @@ execxdpxceiver() copy[$index]=${!current} done - ./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} ${copy[*]} -C ${NUMPKTS} ${VERBOSE_ARG} + ./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} ${copy[*]} -C ${NUMPKTS} ${VERBOSE_ARG} \ + ${DEBUG_ARG} } From patchwork Wed Feb 17 16:02:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ciara Loftus X-Patchwork-Id: 12091887 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=-16.7 required=3.0 tests=BAYES_00, 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 F34B3C433DB for ; Wed, 17 Feb 2021 16:34:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BD31B64E02 for ; Wed, 17 Feb 2021 16:34:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234197AbhBQQec (ORCPT ); Wed, 17 Feb 2021 11:34:32 -0500 Received: from mga03.intel.com ([134.134.136.65]:47626 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234275AbhBQQeB (ORCPT ); Wed, 17 Feb 2021 11:34:01 -0500 IronPort-SDR: QIesddmNwcCbV2C2DZ9twdQ2aviE137UR3m8a/Y1t1DUn8G5B4l0pgFKOkR0LQ74eVFRAktcOn M/IrsylWyKVw== X-IronPort-AV: E=McAfee;i="6000,8403,9897"; a="183315348" X-IronPort-AV: E=Sophos;i="5.81,184,1610438400"; d="scan'208";a="183315348" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Feb 2021 08:33:06 -0800 IronPort-SDR: mqnJDWU5Ls0zXl3AZQ3x6rwUFiS4O0tK5nZONSBCdONshiAuGgV02lSpFieutSM4RAq9q3K/cE /+cHh6D87wKQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,184,1610438400"; d="scan'208";a="494184892" Received: from silpixa00399839.ir.intel.com (HELO localhost.localdomain) ([10.237.222.142]) by fmsmga001.fm.intel.com with ESMTP; 17 Feb 2021 08:33:04 -0800 From: Ciara Loftus To: netdev@vger.kernel.org, bpf@vger.kernel.org, magnus.karlsson@intel.com, bjorn@kernel.org, weqaar.a.janjua@intel.com Cc: Ciara Loftus Subject: [PATCH bpf-next 3/4] selftests/bpf: restructure xsk selftests Date: Wed, 17 Feb 2021 16:02:13 +0000 Message-Id: <20210217160214.7869-4-ciara.loftus@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210217160214.7869-1-ciara.loftus@intel.com> References: <20210217160214.7869-1-ciara.loftus@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Prior to this commit individual xsk tests were launched from the shell script 'test_xsk.sh'. When adding a new test type, two new test configurations had to be added to this file - one for each of the supported XDP 'modes' (skb or drv). Should zero copy support be added to the xsk selftest framework in the future, three new test configurations would need to be added for each new test type. Each new test type also typically requires new CLI arguments for the xdpxceiver program. This commit aims to reduce the overhead of adding new tests, by launching the test configurations from within the xdpxceiver program itself, using simple loops. Every test is run every time the C program is executed. Many of the CLI arguments can be removed as a result. Signed-off-by: Ciara Loftus Reviewed-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/test_xsk.sh | 112 +----------- tools/testing/selftests/bpf/xdpxceiver.c | 199 ++++++++++++--------- tools/testing/selftests/bpf/xdpxceiver.h | 27 ++- tools/testing/selftests/bpf/xsk_prereqs.sh | 24 +-- 4 files changed, 139 insertions(+), 223 deletions(-) diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index a72f8ed2932d..ae2936e0208f 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -146,117 +146,9 @@ test_status $retval "${TEST_NAME}" statusList=() -### TEST 1 -TEST_NAME="XSK KSELFTEST FRAMEWORK" +TEST_NAME="XSK KSELFTESTS" -if [[ $verbose -eq 1 ]]; then - echo "Switching interfaces [${VETH0}, ${VETH1}] to XDP Generic mode" -fi -vethXDPgeneric ${VETH0} ${VETH1} ${NS1} - -retval=$? -if [ $retval -eq 0 ]; then - if [[ $verbose -eq 1 ]]; then - echo "Switching interfaces [${VETH0}, ${VETH1}] to XDP Native mode" - fi - vethXDPnative ${VETH0} ${VETH1} ${NS1} -fi - -retval=$? -test_status $retval "${TEST_NAME}" -statusList+=($retval) - -### TEST 2 -TEST_NAME="SKB NOPOLL" - -vethXDPgeneric ${VETH0} ${VETH1} ${NS1} - -params=("-S") -execxdpxceiver params - -retval=$? -test_status $retval "${TEST_NAME}" -statusList+=($retval) - -### TEST 3 -TEST_NAME="SKB POLL" - -vethXDPgeneric ${VETH0} ${VETH1} ${NS1} - -params=("-S" "-p") -execxdpxceiver params - -retval=$? -test_status $retval "${TEST_NAME}" -statusList+=($retval) - -### TEST 4 -TEST_NAME="DRV NOPOLL" - -vethXDPnative ${VETH0} ${VETH1} ${NS1} - -params=("-N") -execxdpxceiver params - -retval=$? -test_status $retval "${TEST_NAME}" -statusList+=($retval) - -### TEST 5 -TEST_NAME="DRV POLL" - -vethXDPnative ${VETH0} ${VETH1} ${NS1} - -params=("-N" "-p") -execxdpxceiver params - -retval=$? -test_status $retval "${TEST_NAME}" -statusList+=($retval) - -### TEST 6 -TEST_NAME="SKB SOCKET TEARDOWN" - -vethXDPgeneric ${VETH0} ${VETH1} ${NS1} - -params=("-S" "-T") -execxdpxceiver params - -retval=$? -test_status $retval "${TEST_NAME}" -statusList+=($retval) - -### TEST 7 -TEST_NAME="DRV SOCKET TEARDOWN" - -vethXDPnative ${VETH0} ${VETH1} ${NS1} - -params=("-N" "-T") -execxdpxceiver params - -retval=$? -test_status $retval "${TEST_NAME}" -statusList+=($retval) - -### TEST 8 -TEST_NAME="SKB BIDIRECTIONAL SOCKETS" - -vethXDPgeneric ${VETH0} ${VETH1} ${NS1} - -params=("-S" "-B") -execxdpxceiver params - -retval=$? -test_status $retval "${TEST_NAME}" -statusList+=($retval) - -### TEST 9 -TEST_NAME="DRV BIDIRECTIONAL SOCKETS" - -vethXDPnative ${VETH0} ${VETH1} ${NS1} - -params=("-N" "-B") -execxdpxceiver params +execxdpxceiver retval=$? test_status $retval "${TEST_NAME}" diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 8af746c9a6b6..7cb4a13597d0 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -18,12 +18,7 @@ * These selftests test AF_XDP SKB and Native/DRV modes using veth * Virtual Ethernet interfaces. * - * The following tests are run: - * - * 1. AF_XDP SKB mode - * Generic mode XDP is driver independent, used when the driver does - * not have support for XDP. Works on any netdevice using sockets and - * generic XDP path. XDP hook from netif_receive_skb(). + * For each mode, the following tests are run: * a. nopoll - soft-irq processing * b. poll - using poll() syscall * c. Socket Teardown @@ -34,17 +29,6 @@ * completion rings on each socket, tx/rx in both directions. Only nopoll * mode is used * - * 2. AF_XDP DRV/Native mode - * Works on any netdevice with XDP_REDIRECT support, driver dependent. Processes - * packets before SKB allocation. Provides better performance than SKB. Driver - * hook available just after DMA of buffer descriptor. - * a. nopoll - * b. poll - * c. Socket Teardown - * d. Bi-directional sockets - * - Only copy mode is supported because veth does not currently support - * zero-copy mode - * * Total tests: 8 * * Flow: @@ -106,9 +90,10 @@ 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 %s%s\n", uut ? "DRV" : "SKB", opt_poll ? "POLL" :\ - "NOPOLL", opt_teardown ? "Socket Teardown" : "",\ - opt_bidi ? "Bi-directional Sockets" : "")) + (ksft_test_result_pass("PASS: %s %s %s%s\n", uut ? "DRV" : "SKB",\ + test_type == TEST_TYPE_POLL ? "POLL" : "NOPOLL",\ + test_type == TEST_TYPE_TEARDOWN ? "Socket Teardown" : "",\ + test_type == TEST_TYPE_BIDI ? "Bi-directional Sockets" : "")) static void pthread_init_mutex(void) { @@ -311,10 +296,10 @@ static int xsk_configure_socket(struct ifobject *ifobject) cfg.rx_size = XSK_RING_CONS__DEFAULT_NUM_DESCS; cfg.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS; cfg.libbpf_flags = 0; - cfg.xdp_flags = opt_xdp_flags; - cfg.bind_flags = opt_xdp_bind_flags; + cfg.xdp_flags = xdp_flags; + cfg.bind_flags = xdp_bind_flags; - if (!opt_bidi) { + if (test_type != TEST_TYPE_BIDI) { rxr = (ifobject->fv.vector == rx) ? &ifobject->xsk->rx : NULL; txr = (ifobject->fv.vector == tx) ? &ifobject->xsk->tx : NULL; } else { @@ -334,12 +319,6 @@ static int xsk_configure_socket(struct ifobject *ifobject) static struct option long_options[] = { {"interface", required_argument, 0, 'i'}, {"queue", optional_argument, 0, 'q'}, - {"poll", no_argument, 0, 'p'}, - {"xdp-skb", no_argument, 0, 'S'}, - {"xdp-native", no_argument, 0, 'N'}, - {"copy", no_argument, 0, 'c'}, - {"tear-down", no_argument, 0, 'T'}, - {"bidi", optional_argument, 0, 'B'}, {"debug", optional_argument, 0, 'D'}, {"verbose", no_argument, 0, 'v'}, {"tx-pkt-count", optional_argument, 0, 'C'}, @@ -353,12 +332,6 @@ static void usage(const char *prog) " Options:\n" " -i, --interface Use interface\n" " -q, --queue=n Use queue n (default 0)\n" - " -p, --poll Use poll syscall\n" - " -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" - " -B, --bidi Bi-directional sockets test\n" " -D, --debug Debug mode - dump packets L2 - L5\n" " -v, --verbose Verbose output\n" " -C, --tx-pkt-count=n Number of packets to send\n"; @@ -448,7 +421,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "i:q:pSNcTBDC:v", long_options, &option_index); + c = getopt_long(argc, argv, "i:q:DC:v", long_options, &option_index); if (c == -1) break; @@ -471,28 +444,6 @@ static void parse_command_line(int argc, char **argv) case 'q': opt_queue = atoi(optarg); break; - case 'p': - opt_poll = 1; - break; - case 'S': - opt_xdp_flags |= XDP_FLAGS_SKB_MODE; - opt_xdp_bind_flags |= XDP_COPY; - uut = ORDER_CONTENT_VALIDATE_XDP_SKB; - break; - case 'N': - opt_xdp_flags |= XDP_FLAGS_DRV_MODE; - opt_xdp_bind_flags |= XDP_COPY; - uut = ORDER_CONTENT_VALIDATE_XDP_DRV; - break; - case 'c': - opt_xdp_bind_flags |= XDP_COPY; - break; - case 'T': - opt_teardown = 1; - break; - case 'B': - opt_bidi = 1; - break; case 'D': debug_pkt_dump = 1; break; @@ -659,7 +610,7 @@ static void tx_only_all(struct ifobject *ifobject) while ((opt_pkt_count && pkt_cnt < opt_pkt_count) || !opt_pkt_count) { int batch_size = get_batch_size(pkt_cnt); - if (opt_poll) { + if (test_type == TEST_TYPE_POLL) { ret = poll(fds, 1, POLL_TMOUT); if (ret <= 0) continue; @@ -883,7 +834,7 @@ static void *worker_testapp_validate(void *arg) pthread_mutex_unlock(&sync_mutex); while (1) { - if (opt_poll) { + if (test_type == TEST_TYPE_POLL) { ret = poll(fds, 1, POLL_TMOUT); if (ret <= 0) continue; @@ -898,11 +849,11 @@ static void *worker_testapp_validate(void *arg) print_verbose("Received %d packets on interface %s\n", pkt_counter, ifobject->ifname); - if (opt_teardown) + if (test_type == TEST_TYPE_TEARDOWN) print_verbose("Destroying socket\n"); } - if (!opt_bidi || bidi_pass) { + if ((test_type != TEST_TYPE_BIDI) || bidi_pass) { xsk_socket__delete(ifobject->xsk->xsk); (void)xsk_umem__delete(ifobject->umem->umem); } @@ -912,11 +863,12 @@ static void *worker_testapp_validate(void *arg) static void testapp_validate(void) { struct timespec max_wait = { 0, 0 }; + bool bidi = test_type == TEST_TYPE_BIDI; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, THREAD_STACK); - if (opt_bidi && bidi_pass) { + if ((test_type == TEST_TYPE_BIDI) && bidi_pass) { pthread_init_mutex(); if (!switching_notify) { print_verbose("Switching Tx/Rx vectors\n"); @@ -927,10 +879,10 @@ static void testapp_validate(void) pthread_mutex_lock(&sync_mutex); /*Spawn RX thread */ - if (!opt_bidi || !bidi_pass) { + if (!bidi || !bidi_pass) { if (pthread_create(&t0, &attr, worker_testapp_validate, ifdict[1])) exit_with_error(errno); - } else if (opt_bidi && bidi_pass) { + } else if (bidi && bidi_pass) { /*switch Tx/Rx vectors */ ifdict[0]->fv.vector = rx; if (pthread_create(&t0, &attr, worker_testapp_validate, ifdict[0])) @@ -947,10 +899,10 @@ static void testapp_validate(void) pthread_mutex_unlock(&sync_mutex); /*Spawn TX thread */ - if (!opt_bidi || !bidi_pass) { + if (!bidi || !bidi_pass) { if (pthread_create(&t1, &attr, worker_testapp_validate, ifdict[0])) exit_with_error(errno); - } else if (opt_bidi && bidi_pass) { + } else if (bidi && bidi_pass) { /*switch Tx/Rx vectors */ ifdict[1]->fv.vector = tx; if (pthread_create(&t1, &attr, worker_testapp_validate, ifdict[1])) @@ -969,19 +921,20 @@ static void testapp_validate(void) free(pkt_buf); } - if (!opt_teardown && !opt_bidi) + if (!(test_type == TEST_TYPE_TEARDOWN) && !bidi) print_ksft_result(); } static void testapp_sockets(void) { - for (int i = 0; i < (opt_teardown ? MAX_TEARDOWN_ITER : MAX_BIDI_ITER); i++) { + for (int i = 0; i < ((test_type == TEST_TYPE_TEARDOWN) ? MAX_TEARDOWN_ITER : MAX_BIDI_ITER); + i++) { pkt_counter = 0; prev_pkt = -1; sigvar = 0; print_verbose("Creating socket\n"); testapp_validate(); - opt_bidi ? bidi_pass++ : bidi_pass; + test_type == TEST_TYPE_BIDI ? bidi_pass++ : bidi_pass; } print_ksft_result(); @@ -1008,6 +961,94 @@ static void init_iface_config(struct ifaceconfigobj *ifaceconfig) ifdict[1]->src_port = ifaceconfig->dst_port; } +static int configure_skb(void) +{ + + char cmd[80]; + + snprintf(cmd, sizeof(cmd), "ip link set dev %s xdpdrv off", ifdict[0]->ifname); + if (system(cmd)) { + ksft_test_result_fail("Failed to configure native mode on iface %s\n", + ifdict[0]->ifname); + return -1; + } + snprintf(cmd, sizeof(cmd), "ip netns exec %s ip link set dev %s xdpdrv off", + ifdict[1]->nsname, ifdict[1]->ifname); + if (system(cmd)) { + ksft_test_result_fail("Failed to configure native mode on iface/ns %s\n", + ifdict[1]->ifname, ifdict[1]->nsname); + return -1; + } + + cur_mode = TEST_MODE_SKB; + + return 0; + +} + +static int configure_drv(void) +{ + char cmd[80]; + + snprintf(cmd, sizeof(cmd), "ip link set dev %s xdpgeneric off", ifdict[0]->ifname); + if (system(cmd)) { + ksft_test_result_fail("Failed to configure native mode on iface %s\n", + ifdict[0]->ifname); + return -1; + } + snprintf(cmd, sizeof(cmd), "ip netns exec %s ip link set dev %s xdpgeneric off", + ifdict[1]->nsname, ifdict[1]->ifname); + if (system(cmd)) { + ksft_test_result_fail("Failed to configure native mode on iface/ns %s\n", + ifdict[1]->ifname, ifdict[1]->nsname); + return -1; + } + + cur_mode = TEST_MODE_DRV; + + return 0; +} + +static void run_pkt_test(int mode, int type) +{ + test_type = type; + + /* reset defaults after potential previous test */ + xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST; + pkt_counter = 0; + switching_notify = 0; + bidi_pass = 0; + prev_pkt = -1; + ifdict[0]->fv.vector = tx; + ifdict[1]->fv.vector = rx; + + switch (mode) { + case (TEST_MODE_SKB): + if (cur_mode != TEST_MODE_SKB) + configure_skb(); + xdp_flags |= XDP_FLAGS_SKB_MODE; + uut = TEST_MODE_SKB; + break; + case (TEST_MODE_DRV): + if (cur_mode != TEST_MODE_DRV) + configure_drv(); + xdp_flags |= XDP_FLAGS_DRV_MODE; + uut = TEST_MODE_DRV; + break; + default: + break; + } + + pthread_init_mutex(); + + if ((test_type != TEST_TYPE_TEARDOWN) && (test_type != TEST_TYPE_BIDI)) + testapp_validate(); + else + testapp_sockets(); + + pthread_destroy_mutex(); +} + int main(int argc, char **argv) { struct rlimit _rlim = { RLIM_INFINITY, RLIM_INFINITY }; @@ -1021,6 +1062,7 @@ int main(int argc, char **argv) const char *IP2 = "192.168.100.161"; u16 UDP_DST_PORT = 2020; u16 UDP_SRC_PORT = 2121; + int i, j; ifaceconfig = malloc(sizeof(struct ifaceconfigobj)); memcpy(ifaceconfig->dst_mac, MAC1, ETH_ALEN); @@ -1046,24 +1088,19 @@ int main(int argc, char **argv) init_iface_config(ifaceconfig); - pthread_init_mutex(); + ksft_set_plan(TEST_MODE_MAX * TEST_TYPE_MAX); - ksft_set_plan(1); + configure_skb(); + cur_mode = TEST_MODE_SKB; - if (!opt_teardown && !opt_bidi) { - testapp_validate(); - } else if (opt_teardown && opt_bidi) { - ksft_test_result_fail("ERROR: parameters -T and -B cannot be used together\n"); - ksft_exit_xfail(); - } else { - testapp_sockets(); + for (i = 0; i < TEST_MODE_MAX; i++) { + for (j = 0; j < TEST_TYPE_MAX; j++) + run_pkt_test(i, j); } for (int i = 0; i < MAX_INTERFACES; i++) free(ifdict[i]); - pthread_destroy_mutex(); - ksft_exit_pass(); return 0; diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index f66f399dfb2d..1127a396d5d0 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -48,9 +48,18 @@ typedef __u32 u32; typedef __u16 u16; typedef __u8 u8; -enum TESTS { - ORDER_CONTENT_VALIDATE_XDP_SKB = 0, - ORDER_CONTENT_VALIDATE_XDP_DRV = 1, +enum TEST_MODES { + TEST_MODE_SKB, + TEST_MODE_DRV, + TEST_MODE_MAX +}; + +enum TEST_TYPES { + TEST_TYPE_NOPOLL, + TEST_TYPE_POLL, + TEST_TYPE_TEARDOWN, + TEST_TYPE_BIDI, + TEST_TYPE_MAX }; static u8 uut; @@ -58,18 +67,18 @@ static u8 debug_pkt_dump; static u32 num_frames; static u8 switching_notify; static u8 bidi_pass; +static int cur_mode; +static int test_type; -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 int opt_bidi; -static u32 opt_xdp_bind_flags = XDP_USE_NEED_WAKEUP; static u8 opt_verbose; + +static u32 xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST; +static u32 xdp_bind_flags = XDP_USE_NEED_WAKEUP | XDP_COPY; static u8 pkt_data[XSK_UMEM__DEFAULT_FRAME_SIZE]; static u32 pkt_counter; -static u32 prev_pkt = -1; +static long prev_pkt = -1; static int sigvar; struct xsk_umem_info { diff --git a/tools/testing/selftests/bpf/xsk_prereqs.sh b/tools/testing/selftests/bpf/xsk_prereqs.sh index d95018051fcc..2d0fc9b7fe34 100755 --- a/tools/testing/selftests/bpf/xsk_prereqs.sh +++ b/tools/testing/selftests/bpf/xsk_prereqs.sh @@ -105,29 +105,7 @@ validate_ip_utility() [ ! $(type -P ip) ] && { echo "'ip' not found. Skipping tests."; test_exit $ksft_skip 1; } } -vethXDPgeneric() -{ - ip link set dev $1 xdpdrv off - ip netns exec $3 ip link set dev $2 xdpdrv off -} - -vethXDPnative() -{ - ip link set dev $1 xdpgeneric off - ip netns exec $3 ip link set dev $2 xdpgeneric off -} - execxdpxceiver() { - local -a 'paramkeys=("${!'"$1"'[@]}")' copy - paramkeysstr=${paramkeys[*]} - - for index in $paramkeysstr; - do - current=$1"[$index]" - copy[$index]=${!current} - done - - ./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} ${copy[*]} -C ${NUMPKTS} ${VERBOSE_ARG} \ - ${DEBUG_ARG} + ./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} -C ${NUMPKTS} ${VERBOSE_ARG} ${DEBUG_ARG} } From patchwork Wed Feb 17 16:02:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ciara Loftus X-Patchwork-Id: 12091889 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 5E429C433E0 for ; Wed, 17 Feb 2021 16:34:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2E3F364DE0 for ; Wed, 17 Feb 2021 16:34:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234179AbhBQQei (ORCPT ); Wed, 17 Feb 2021 11:34:38 -0500 Received: from mga03.intel.com ([134.134.136.65]:47635 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234239AbhBQQeD (ORCPT ); Wed, 17 Feb 2021 11:34:03 -0500 IronPort-SDR: 7/WX80gCgPOuSUtjrh/D9EeNlKwRGutz59HKoZVZimou8JQUGo/ZKLRv0kTqeDJhCBGndvPRs4 kUjf62AWCLEQ== X-IronPort-AV: E=McAfee;i="6000,8403,9897"; a="183315356" X-IronPort-AV: E=Sophos;i="5.81,184,1610438400"; d="scan'208";a="183315356" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Feb 2021 08:33:08 -0800 IronPort-SDR: cxMMofQVgtJ+cJrS0z0o7dD00PT8y1OWsWRo2CSXwV3L0SwFNLzmoM3pAFLEfklEktcux53gY/ Gu6PKe4XYW5g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,184,1610438400"; d="scan'208";a="494184900" Received: from silpixa00399839.ir.intel.com (HELO localhost.localdomain) ([10.237.222.142]) by fmsmga001.fm.intel.com with ESMTP; 17 Feb 2021 08:33:06 -0800 From: Ciara Loftus To: netdev@vger.kernel.org, bpf@vger.kernel.org, magnus.karlsson@intel.com, bjorn@kernel.org, weqaar.a.janjua@intel.com Cc: Ciara Loftus Subject: [PATCH bpf-next 4/4] selftests/bpf: introduce xsk statistics tests Date: Wed, 17 Feb 2021 16:02:14 +0000 Message-Id: <20210217160214.7869-5-ciara.loftus@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210217160214.7869-1-ciara.loftus@intel.com> References: <20210217160214.7869-1-ciara.loftus@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net This commit introduces a range of tests to the xsk testsuite for validating xsk statistics. A new test type called 'stats' is added. Within it there are four sub-tests which test the following statistics: 1. rx dropped 2. tx invalid 3. rx ring full 4. fill queue empty Each test configures a scenario which should trigger the given error statistic. The test passes if the statistic is successfully incremented. Signed-off-by: Ciara Loftus --- tools/testing/selftests/bpf/xdpxceiver.c | 130 ++++++++++++++++++++--- tools/testing/selftests/bpf/xdpxceiver.h | 13 +++ 2 files changed, 130 insertions(+), 13 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 7cb4a13597d0..4647c89b2019 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -28,8 +28,11 @@ * Configure sockets as bi-directional tx/rx sockets, sets up fill and * completion rings on each socket, tx/rx in both directions. Only nopoll * mode is used + * e. Statistics + * Trigger some error conditions and ensure that the appropriate statistics + * are incremented. * - * Total tests: 8 + * Total tests: 10 * * Flow: * ----- @@ -90,10 +93,11 @@ 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 %s%s\n", uut ? "DRV" : "SKB",\ + (ksft_test_result_pass("PASS: %s %s %s%s%s\n", uut ? "DRV" : "SKB",\ test_type == TEST_TYPE_POLL ? "POLL" : "NOPOLL",\ test_type == TEST_TYPE_TEARDOWN ? "Socket Teardown" : "",\ - test_type == TEST_TYPE_BIDI ? "Bi-directional Sockets" : "")) + test_type == TEST_TYPE_BIDI ? "Bi-directional Sockets" : "",\ + test_type == TEST_TYPE_STATS ? "Stats" : "")) static void pthread_init_mutex(void) { @@ -255,13 +259,20 @@ static void gen_eth_frame(struct xsk_umem_info *umem, u64 addr) static void xsk_configure_umem(struct ifobject *data, void *buffer, u64 size) { int ret; + struct xsk_umem_config cfg = { + .fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS, + .comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS, + .frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE, + .frame_headroom = frame_headroom, + .flags = XSK_UMEM__DEFAULT_FLAGS + }; data->umem = calloc(1, sizeof(struct xsk_umem_info)); if (!data->umem) exit_with_error(errno); ret = xsk_umem__create(&data->umem->umem, buffer, size, - &data->umem->fq, &data->umem->cq, NULL); + &data->umem->fq, &data->umem->cq, &cfg); if (ret) exit_with_error(ret); @@ -293,7 +304,7 @@ static int xsk_configure_socket(struct ifobject *ifobject) exit_with_error(errno); ifobject->xsk->umem = ifobject->umem; - cfg.rx_size = XSK_RING_CONS__DEFAULT_NUM_DESCS; + cfg.rx_size = rxqsize; cfg.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS; cfg.libbpf_flags = 0; cfg.xdp_flags = xdp_flags; @@ -555,6 +566,8 @@ static void tx_only(struct xsk_socket_info *xsk, u32 *frameptr, int batch_size) { u32 idx; unsigned int i; + bool tx_invalid_test = stat_test_type == STAT_TEST_TX_INVALID; + u32 len = tx_invalid_test ? XSK_UMEM__DEFAULT_FRAME_SIZE + 1 : PKT_SIZE; while (xsk_ring_prod__reserve(&xsk->tx, batch_size, &idx) < batch_size) complete_tx_only(xsk, batch_size); @@ -563,11 +576,16 @@ static void tx_only(struct xsk_socket_info *xsk, u32 *frameptr, int batch_size) struct xdp_desc *tx_desc = xsk_ring_prod__tx_desc(&xsk->tx, idx + i); tx_desc->addr = (*frameptr + i) << XSK_UMEM__DEFAULT_FRAME_SHIFT; - tx_desc->len = PKT_SIZE; + tx_desc->len = len; } xsk_ring_prod__submit(&xsk->tx, batch_size); - xsk->outstanding_tx += batch_size; + if (!tx_invalid_test) { + xsk->outstanding_tx += batch_size; + } else { + if (!NEED_WAKEUP || xsk_ring_prod__needs_wakeup(&xsk->tx)) + kick_tx(xsk); + } *frameptr += batch_size; *frameptr %= num_frames; complete_tx_only(xsk, batch_size); @@ -679,6 +697,48 @@ static void worker_pkt_dump(void) } } +static void worker_stats_validate(struct ifobject *ifobject) +{ + struct xdp_statistics stats; + socklen_t optlen; + int err; + struct xsk_socket *xsk = stat_test_type == STAT_TEST_TX_INVALID ? + ifdict[!ifobject->ifdict_index]->xsk->xsk : + ifobject->xsk->xsk; + int fd = xsk_socket__fd(xsk); + unsigned long xsk_stat = 0, expected_stat = opt_pkt_count; + + sigvar = 0; + + optlen = sizeof(stats); + err = getsockopt(fd, SOL_XDP, XDP_STATISTICS, &stats, &optlen); + if (err) + return; + + if (optlen == sizeof(struct xdp_statistics)) { + switch (stat_test_type) { + case STAT_TEST_RX_DROPPED: + xsk_stat = stats.rx_dropped; + break; + case STAT_TEST_TX_INVALID: + xsk_stat = stats.tx_invalid_descs; + break; + case STAT_TEST_RX_FULL: + xsk_stat = stats.rx_ring_full; + expected_stat -= RX_FULL_RXQSIZE; + break; + case STAT_TEST_RX_FILL_EMPTY: + xsk_stat = stats.rx_fill_ring_empty_descs; + break; + default: + break; + } + + if (xsk_stat == expected_stat) + sigvar = 1; + } +} + static void worker_pkt_validate(void) { u32 payloadseqnum = -2; @@ -817,7 +877,8 @@ static void *worker_testapp_validate(void *arg) thread_common_ops(ifobject, bufs, &sync_mutex_tx, &spinning_rx); print_verbose("Interface [%s] vector [Rx]\n", ifobject->ifname); - xsk_populate_fill_ring(ifobject->umem); + if (stat_test_type != STAT_TEST_RX_FILL_EMPTY) + xsk_populate_fill_ring(ifobject->umem); TAILQ_INIT(&head); if (debug_pkt_dump) { @@ -839,15 +900,21 @@ static void *worker_testapp_validate(void *arg) if (ret <= 0) continue; } - rx_pkt(ifobject->xsk, fds); - worker_pkt_validate(); + + if (test_type != TEST_TYPE_STATS) { + rx_pkt(ifobject->xsk, fds); + worker_pkt_validate(); + } else { + worker_stats_validate(ifobject); + } if (sigvar) break; } - print_verbose("Received %d packets on interface %s\n", - pkt_counter, ifobject->ifname); + if (test_type != TEST_TYPE_STATS) + print_verbose("Received %d packets on interface %s\n", + pkt_counter, ifobject->ifname); if (test_type == TEST_TYPE_TEARDOWN) print_verbose("Destroying socket\n"); @@ -921,7 +988,7 @@ static void testapp_validate(void) free(pkt_buf); } - if (!(test_type == TEST_TYPE_TEARDOWN) && !bidi) + if (!(test_type == TEST_TYPE_TEARDOWN) && !bidi && !(test_type == TEST_TYPE_STATS)) print_ksft_result(); } @@ -940,6 +1007,34 @@ static void testapp_sockets(void) print_ksft_result(); } +static void testapp_stats(void) +{ + for (int i = 0; i < STAT_TEST_TYPE_MAX; i++) { + stat_test_type = i; + + /* reset defaults */ + rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS; + frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM; + + switch (stat_test_type) { + case STAT_TEST_RX_DROPPED: + frame_headroom = XSK_UMEM__DEFAULT_FRAME_SIZE - + XDP_PACKET_HEADROOM - 1; + break; + case STAT_TEST_RX_FULL: + rxqsize = RX_FULL_RXQSIZE; + break; + default: + break; + } + pthread_init_mutex(); + testapp_validate(); + pthread_destroy_mutex(); + } + + print_ksft_result(); +} + static void init_iface_config(struct ifaceconfigobj *ifaceconfig) { /*Init interface0 */ @@ -1021,6 +1116,10 @@ static void run_pkt_test(int mode, int type) prev_pkt = -1; ifdict[0]->fv.vector = tx; ifdict[1]->fv.vector = rx; + sigvar = 0; + stat_test_type = -1; + rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS; + frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM; switch (mode) { case (TEST_MODE_SKB): @@ -1039,6 +1138,11 @@ static void run_pkt_test(int mode, int type) break; } + if (test_type == TEST_TYPE_STATS) { + testapp_stats(); + return; + } + pthread_init_mutex(); if ((test_type != TEST_TYPE_TEARDOWN) && (test_type != TEST_TYPE_BIDI)) diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 1127a396d5d0..4d0a80dbfef0 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -41,6 +41,7 @@ #define BATCH_SIZE 64 #define POLL_TMOUT 1000 #define NEED_WAKEUP true +#define RX_FULL_RXQSIZE 32 #define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0) @@ -59,9 +60,18 @@ enum TEST_TYPES { TEST_TYPE_POLL, TEST_TYPE_TEARDOWN, TEST_TYPE_BIDI, + TEST_TYPE_STATS, TEST_TYPE_MAX }; +enum STAT_TEST_TYPES { + STAT_TEST_RX_DROPPED, + STAT_TEST_TX_INVALID, + STAT_TEST_RX_FULL, + STAT_TEST_RX_FILL_EMPTY, + STAT_TEST_TYPE_MAX +}; + static u8 uut; static u8 debug_pkt_dump; static u32 num_frames; @@ -80,6 +90,9 @@ static u8 pkt_data[XSK_UMEM__DEFAULT_FRAME_SIZE]; static u32 pkt_counter; static long prev_pkt = -1; static int sigvar; +static int stat_test_type; +static u32 rxqsize; +static u32 frame_headroom; struct xsk_umem_info { struct xsk_ring_prod fq;