From patchwork Thu Mar 11 15:28:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12131967 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,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 53963C433E0 for ; Thu, 11 Mar 2021 15:41:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B11F64FE7 for ; Thu, 11 Mar 2021 15:41:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234312AbhCKPlZ (ORCPT ); Thu, 11 Mar 2021 10:41:25 -0500 Received: from mga06.intel.com ([134.134.136.31]:60959 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234228AbhCKPlC (ORCPT ); Thu, 11 Mar 2021 10:41:02 -0500 IronPort-SDR: Ak0D2Evfd44BOx0YzYtCEWj7EbakLfYKIBjDTjc6OgCVAun1EEKkg1KCNATK2SxGvzxeTocJiO t9u2ICw7KSXw== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="250048421" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="250048421" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:02 -0800 IronPort-SDR: G4aaYju0x/ptGFSEGWFNz3eWtChUIPaYsS3coNeoZ9EFOG1zm6451d/4poDGl3CF+BTgdkp6E1 YGev1dnB5EHQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253420" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:00 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 01/17] selftests: xsk: don't call worker_pkt_dump() for stats test Date: Thu, 11 Mar 2021 16:28:54 +0100 Message-Id: <20210311152910.56760-2-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net For TEST_TYPE_STATS, worker_pkt_validate() that places frames onto pkt_buf is not called. Therefore, when dump mode is set, don't call worker_pkt_dump() for mentioned test type, so that it won't crash on pkt_buf() access. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 8b0f7fdd9003..04574c2b4f41 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -999,7 +999,7 @@ static void testapp_validate(void) pthread_join(t1, NULL); pthread_join(t0, NULL); - if (debug_pkt_dump) { + if (debug_pkt_dump && test_type != TEST_TYPE_STATS) { worker_pkt_dump(); for (int iter = 0; iter < num_frames - 1; iter++) { free(pkt_buf[iter]->payload); From patchwork Thu Mar 11 15:28:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12131973 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,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 AE848C4332D for ; Thu, 11 Mar 2021 15:41:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3F56864FFD for ; Thu, 11 Mar 2021 15:41:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234320AbhCKPl0 (ORCPT ); Thu, 11 Mar 2021 10:41:26 -0500 Received: from mga06.intel.com ([134.134.136.31]:60959 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234236AbhCKPlF (ORCPT ); Thu, 11 Mar 2021 10:41:05 -0500 IronPort-SDR: a/iVu47fp9nhRsDPDSZMnNa22w0VV9Xan9BOQjOB+V/8egl4jheTYnpxJcV2m3rpsTL5iG7ftp JLyr3q/P0XMw== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="250048431" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="250048431" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:05 -0800 IronPort-SDR: QxKEXY593cogXSqSOEBt0fFzShMhi+qT/QdWDLdJpx8jzSZOgo3iBdCD0MKruaLx7gMLZReCtU S1qzgQLwDUow== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253435" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:02 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 02/17] selftests: xsk: remove struct ifaceconfigobj Date: Thu, 11 Mar 2021 16:28:55 +0100 Message-Id: <20210311152910.56760-3-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net ifaceconfigobj is not really useful, it is possible to keep the functionality and simplify the code. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 65 +++++++++++------------- tools/testing/selftests/bpf/xdpxceiver.h | 9 ---- 2 files changed, 30 insertions(+), 44 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 04574c2b4f41..04bc007d5b08 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -93,6 +93,13 @@ typedef __u16 __sum16; #include "xdpxceiver.h" #include "../kselftest.h" +static const char *MAC1 = "\x00\x0A\x56\x9E\xEE\x62"; +static const char *MAC2 = "\x00\x0A\x56\x9E\xEE\x61"; +static const char *IP1 = "192.168.100.162"; +static const char *IP2 = "192.168.100.161"; +static const u16 UDP_PORT1 = 2020; +static const u16 UDP_PORT2 = 2121; + static void __exit_with_error(int error, const char *file, const char *func, int line) { if (configured_mode == TEST_MODE_UNCONFIGURED) { @@ -1053,25 +1060,24 @@ static void testapp_stats(void) print_ksft_result(); } -static void init_iface_config(struct ifaceconfigobj *ifaceconfig) +static void init_iface(struct ifobject *ifobj, const char *dst_mac, + const char *src_mac, const char *dst_ip, + const char *src_ip, const u16 dst_port, + const u16 src_port) { - /*Init interface0 */ - ifdict[0]->fv.vector = tx; - memcpy(ifdict[0]->dst_mac, ifaceconfig->dst_mac, ETH_ALEN); - memcpy(ifdict[0]->src_mac, ifaceconfig->src_mac, ETH_ALEN); - ifdict[0]->dst_ip = ifaceconfig->dst_ip.s_addr; - ifdict[0]->src_ip = ifaceconfig->src_ip.s_addr; - ifdict[0]->dst_port = ifaceconfig->dst_port; - ifdict[0]->src_port = ifaceconfig->src_port; - - /*Init interface1 */ - ifdict[1]->fv.vector = rx; - memcpy(ifdict[1]->dst_mac, ifaceconfig->src_mac, ETH_ALEN); - memcpy(ifdict[1]->src_mac, ifaceconfig->dst_mac, ETH_ALEN); - ifdict[1]->dst_ip = ifaceconfig->src_ip.s_addr; - ifdict[1]->src_ip = ifaceconfig->dst_ip.s_addr; - ifdict[1]->dst_port = ifaceconfig->src_port; - ifdict[1]->src_port = ifaceconfig->dst_port; + struct in_addr ip; + + memcpy(ifobj->dst_mac, dst_mac, ETH_ALEN); + memcpy(ifobj->src_mac, src_mac, ETH_ALEN); + + inet_aton(dst_ip, &ip); + ifobj->dst_ip = ip.s_addr; + + inet_aton(src_ip, &ip); + ifobj->src_ip = ip.s_addr; + + ifobj->dst_port = dst_port; + ifobj->src_port = src_port; } static void *nsdisablemodethread(void *args) @@ -1175,26 +1181,11 @@ static void run_pkt_test(int mode, int type) int main(int argc, char **argv) { struct rlimit _rlim = { RLIM_INFINITY, RLIM_INFINITY }; + int i, j; if (setrlimit(RLIMIT_MEMLOCK, &_rlim)) exit_with_error(errno); - const char *MAC1 = "\x00\x0A\x56\x9E\xEE\x62"; - const char *MAC2 = "\x00\x0A\x56\x9E\xEE\x61"; - const char *IP1 = "192.168.100.162"; - 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); - memcpy(ifaceconfig->src_mac, MAC2, ETH_ALEN); - inet_aton(IP1, &ifaceconfig->dst_ip); - inet_aton(IP2, &ifaceconfig->src_ip); - ifaceconfig->dst_port = UDP_DST_PORT; - ifaceconfig->src_port = UDP_SRC_PORT; - for (int i = 0; i < MAX_INTERFACES; i++) { ifdict[i] = malloc(sizeof(struct ifobject)); if (!ifdict[i]) @@ -1209,7 +1200,11 @@ int main(int argc, char **argv) num_frames = ++opt_pkt_count; - init_iface_config(ifaceconfig); + ifdict[0]->fv.vector = tx; + init_iface(ifdict[0], MAC1, MAC2, IP1, IP2, UDP_PORT1, UDP_PORT2); + + ifdict[1]->fv.vector = rx; + init_iface(ifdict[1], MAC2, MAC1, IP2, IP1, UDP_PORT2, UDP_PORT1); disable_xdp_mode(XDP_FLAGS_DRV_MODE); diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 30314ef305c2..8f9308099318 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -125,15 +125,6 @@ struct generic_data { u32 seqnum; }; -struct ifaceconfigobj { - u8 dst_mac[ETH_ALEN]; - u8 src_mac[ETH_ALEN]; - struct in_addr dst_ip; - struct in_addr src_ip; - u16 src_port; - u16 dst_port; -} *ifaceconfig; - struct ifobject { int ifindex; int ifdict_index; From patchwork Thu Mar 11 15:28:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12131969 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 AB220C43333 for ; Thu, 11 Mar 2021 15:41:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 84F2064FF5 for ; Thu, 11 Mar 2021 15:41:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234239AbhCKPl2 (ORCPT ); Thu, 11 Mar 2021 10:41:28 -0500 Received: from mga06.intel.com ([134.134.136.31]:60959 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234076AbhCKPlI (ORCPT ); Thu, 11 Mar 2021 10:41:08 -0500 IronPort-SDR: Q1WhMKQ9yBcw8z0bQeUTr8/+o7yxS+TEY8XME8004CVjdgymnCVGZ/wV0osMV35VtLbDIMf5Hc cVB2M0GcLHQA== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="250048440" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="250048440" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:08 -0800 IronPort-SDR: KUubkeAhWvMXYArx611evFsqOcjVxdIoi5LdrZhH+3Ywu+2aeQbsXrbHGoceo6mUefGt/5h2cX nKLwsVJABDRQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253444" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:05 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 03/17] selftests: xsk: remove unused function Date: Thu, 11 Mar 2021 16:28:56 +0100 Message-Id: <20210311152910.56760-4-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Probably it was ported from xdpsock but is not used anywhere. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 04bc007d5b08..6769e9e2de17 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -153,19 +153,6 @@ static void *memset32_htonl(void *dest, u32 val, u32 size) return dest; } -/* - * This function code has been taken from - * Linux kernel lib/checksum.c - */ -static inline unsigned short from32to16(unsigned int x) -{ - /* add up 16-bit and 16-bit for 16+c bit */ - x = (x & 0xffff) + (x >> 16); - /* add up carry.. */ - x = (x & 0xffff) + (x >> 16); - return x; -} - /* * Fold a partial checksum * This function code has been taken from From patchwork Thu Mar 11 15:28:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12131971 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,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 BEA5AC432C3 for ; Thu, 11 Mar 2021 15:41:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F408664FF9 for ; Thu, 11 Mar 2021 15:41:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234120AbhCKPla (ORCPT ); Thu, 11 Mar 2021 10:41:30 -0500 Received: from mga14.intel.com ([192.55.52.115]:42345 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234099AbhCKPlS (ORCPT ); Thu, 11 Mar 2021 10:41:18 -0500 IronPort-SDR: DI3Sve5sE+1hP3jCEK/T3QSXO/DJ8mpWMGSWqnGliZkfx2UMrFRry6lnatgLqIaowJlG8x4vgD WSSj+yjrArjA== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="188050676" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="188050676" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:18 -0800 IronPort-SDR: 7jM1WulFvD7d3zHJ6uvpRe1yLDXyy6/2grqnL845uebzE8ixwzASy8dUU7yXNmvEy6bZiIXUbF pp1HCUw03ctw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253456" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:08 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 04/17] selftests: xsk: remove inline keyword from source file Date: Thu, 11 Mar 2021 16:28:57 +0100 Message-Id: <20210311152910.56760-5-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Follow the kernel coding style guidelines and let compiler do the decision about inlining. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 6769e9e2de17..08058a3d9aec 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -158,7 +158,7 @@ static void *memset32_htonl(void *dest, u32 val, u32 size) * This function code has been taken from * Linux kernel include/asm-generic/checksum.h */ -static inline __u16 csum_fold(__u32 csum) +static __u16 csum_fold(__u32 csum) { u32 sum = (__force u32)csum; @@ -171,7 +171,7 @@ static inline __u16 csum_fold(__u32 csum) * This function code has been taken from * Linux kernel lib/checksum.c */ -static inline u32 from64to32(u64 x) +static u32 from64to32(u64 x) { /* add up 32-bit and 32-bit for 32+c bit */ x = (x & 0xffffffff) + (x >> 32); @@ -180,13 +180,11 @@ static inline u32 from64to32(u64 x) return (u32)x; } -__u32 csum_tcpudp_nofold(__be32 saddr, __be32 daddr, __u32 len, __u8 proto, __u32 sum); - /* * This function code has been taken from * Linux kernel lib/checksum.c */ -__u32 csum_tcpudp_nofold(__be32 saddr, __be32 daddr, __u32 len, __u8 proto, __u32 sum) +static __u32 csum_tcpudp_nofold(__be32 saddr, __be32 daddr, __u32 len, __u8 proto, __u32 sum) { unsigned long long s = (__force u32)sum; @@ -204,13 +202,12 @@ __u32 csum_tcpudp_nofold(__be32 saddr, __be32 daddr, __u32 len, __u8 proto, __u3 * This function has been taken from * Linux kernel include/asm-generic/checksum.h */ -static inline __u16 -csum_tcpudp_magic(__be32 saddr, __be32 daddr, __u32 len, __u8 proto, __u32 sum) +static __u16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, __u32 len, __u8 proto, __u32 sum) { return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum)); } -static inline u16 udp_csum(u32 saddr, u32 daddr, u32 len, u8 proto, u16 *udp_pkt) +static u16 udp_csum(u32 saddr, u32 daddr, u32 len, u8 proto, u16 *udp_pkt) { u32 csum = 0; u32 cnt = 0; @@ -500,7 +497,7 @@ static void kick_tx(struct xsk_socket_info *xsk) exit_with_error(errno); } -static inline void complete_tx_only(struct xsk_socket_info *xsk, int batch_size) +static void complete_tx_only(struct xsk_socket_info *xsk, int batch_size) { unsigned int rcvd; u32 idx; @@ -605,7 +602,7 @@ static void tx_only(struct xsk_socket_info *xsk, u32 *frameptr, int batch_size) complete_tx_only(xsk, batch_size); } -static inline int get_batch_size(int pkt_cnt) +static int get_batch_size(int pkt_cnt) { if (!opt_pkt_count) return BATCH_SIZE; From patchwork Thu Mar 11 15:28:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12131977 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,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 59848C4361B for ; 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d="scan'208";a="589253475" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:16 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 05/17] selftests: xsk: simplify frame traversal in dumping thread Date: Thu, 11 Mar 2021 16:28:58 +0100 Message-Id: <20210311152910.56760-6-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Store offsets to each layer in a separate variables rather than compute them every single time. Signed-off-by: Björn Töpel Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 48 +++++++++++------------- 1 file changed, 22 insertions(+), 26 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 08058a3d9aec..7c373695bbcc 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -658,45 +658,41 @@ static void tx_only_all(struct ifobject *ifobject) static void worker_pkt_dump(void) { - struct in_addr ipaddr; + struct ethhdr *ethhdr; + struct iphdr *iphdr; + struct udphdr *udphdr; + char s[128]; + int payload; + void *ptr; fprintf(stdout, "---------------------------------------\n"); for (int iter = 0; iter < num_frames - 1; iter++) { + + ptr = pkt_buf[iter]->payload; + ethhdr = ptr; + iphdr = ptr + sizeof(*ethhdr); + udphdr = ptr + sizeof(*ethhdr) + sizeof(*iphdr); + /*extract L2 frame */ fprintf(stdout, "DEBUG>> L2: dst mac: "); for (int i = 0; i < ETH_ALEN; i++) - fprintf(stdout, "%02X", ((struct ethhdr *) - pkt_buf[iter]->payload)->h_dest[i]); + fprintf(stdout, "%02X", ethhdr->h_dest[i]); fprintf(stdout, "\nDEBUG>> L2: src mac: "); for (int i = 0; i < ETH_ALEN; i++) - fprintf(stdout, "%02X", ((struct ethhdr *) - pkt_buf[iter]->payload)->h_source[i]); + fprintf(stdout, "%02X", ethhdr->h_source[i]); /*extract L3 frame */ - fprintf(stdout, "\nDEBUG>> L3: ip_hdr->ihl: %02X\n", - ((struct iphdr *)(pkt_buf[iter]->payload + sizeof(struct ethhdr)))->ihl); - - ipaddr.s_addr = - ((struct iphdr *)(pkt_buf[iter]->payload + sizeof(struct ethhdr)))->saddr; - fprintf(stdout, "DEBUG>> L3: ip_hdr->saddr: %s\n", inet_ntoa(ipaddr)); - - ipaddr.s_addr = - ((struct iphdr *)(pkt_buf[iter]->payload + sizeof(struct ethhdr)))->daddr; - fprintf(stdout, "DEBUG>> L3: ip_hdr->daddr: %s\n", inet_ntoa(ipaddr)); - + fprintf(stdout, "\nDEBUG>> L3: ip_hdr->ihl: %02X\n", iphdr->ihl); + fprintf(stdout, "DEBUG>> L3: ip_hdr->saddr: %s\n", + inet_ntop(AF_INET, &iphdr->saddr, s, sizeof(s))); + fprintf(stdout, "DEBUG>> L3: ip_hdr->daddr: %s\n", + inet_ntop(AF_INET, &iphdr->daddr, s, sizeof(s))); /*extract L4 frame */ - fprintf(stdout, "DEBUG>> L4: udp_hdr->src: %d\n", - ntohs(((struct udphdr *)(pkt_buf[iter]->payload + - sizeof(struct ethhdr) + - sizeof(struct iphdr)))->source)); - - fprintf(stdout, "DEBUG>> L4: udp_hdr->dst: %d\n", - ntohs(((struct udphdr *)(pkt_buf[iter]->payload + - sizeof(struct ethhdr) + - sizeof(struct iphdr)))->dest)); + fprintf(stdout, "DEBUG>> L4: udp_hdr->src: %d\n", ntohs(udphdr->source)); + fprintf(stdout, "DEBUG>> L4: udp_hdr->dst: %d\n", ntohs(udphdr->dest)); /*extract L5 frame */ - int payload = *((uint32_t *)(pkt_buf[iter]->payload + PKT_HDR_SIZE)); + payload = *((uint32_t *)(ptr + PKT_HDR_SIZE)); if (payload == EOT) { print_verbose("End-of-transmission frame received\n"); From patchwork Thu Mar 11 15:28:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132001 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,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 5872BC433E0 for ; Thu, 11 Mar 2021 15:42:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1463064F99 for ; Thu, 11 Mar 2021 15:42:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234321AbhCKPlz (ORCPT ); Thu, 11 Mar 2021 10:41:55 -0500 Received: from mga14.intel.com ([192.55.52.115]:42345 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234045AbhCKPlX (ORCPT ); Thu, 11 Mar 2021 10:41:23 -0500 IronPort-SDR: 3Va/ablBBFkMTYVdDwxhqeYJ3ETrGpxt7gQp1OD1Ya/7Iohh2Fw79HAJ0Jc0UKEzmHW/lQmpt0 OTPuF3BIoZRQ== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="188050690" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="188050690" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:22 -0800 IronPort-SDR: CEyIJAJCv/mVFVaBqbMoPRaGZzfczG9dI2a2O5AXLgMuG1Cc0y/9D0zXuj7ajXRSx/pjfWnxUJ gJ9IGt7JEQ9A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253494" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:19 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 06/17] libbpf: xsk: use bpf_link Date: Thu, 11 Mar 2021 16:28:59 +0100 Message-Id: <20210311152910.56760-7-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Currently, if there are multiple xdpsock instances running on a single interface and in case one of the instances is terminated, the rest of them are left in an inoperable state due to the fact of unloaded XDP prog from interface. Consider the scenario below: // load xdp prog and xskmap and add entry to xskmap at idx 10 $ sudo ./xdpsock -i ens801f0 -t -q 10 // add entry to xskmap at idx 11 $ sudo ./xdpsock -i ens801f0 -t -q 11 terminate one of the processes and another one is unable to work due to the fact that the XDP prog was unloaded from interface. To address that, step away from setting bpf prog in favour of bpf_link. This means that refcounting of BPF resources will be done automatically by bpf_link itself. When setting up BPF resources during xsk socket creation, check whether bpf_link for a given ifindex already exists via set of calls to bpf_link_get_next_id -> bpf_link_get_fd_by_id -> bpf_obj_get_info_by_fd and comparing the ifindexes from bpf_link and xsk socket. If there's no bpf_link yet, create one for a given XDP prog. If bpf_link is already at a given ifindex and underlying program is not AF-XDP one, bail out or update the bpf_link's prog given the presence of XDP_FLAGS_UPDATE_IF_NOEXIST. If there's netlink-based XDP prog running on a interface, bail out and ask user to do removal by himself. Signed-off-by: Maciej Fijalkowski --- tools/lib/bpf/xsk.c | 139 ++++++++++++++++++++++++++++++++++++++------ 1 file changed, 120 insertions(+), 19 deletions(-) diff --git a/tools/lib/bpf/xsk.c b/tools/lib/bpf/xsk.c index 526fc35c0b23..dfca423a6c5f 100644 --- a/tools/lib/bpf/xsk.c +++ b/tools/lib/bpf/xsk.c @@ -28,6 +28,7 @@ #include #include #include +#include #include "bpf.h" #include "libbpf.h" @@ -70,6 +71,7 @@ struct xsk_ctx { int ifindex; struct list_head list; int prog_fd; + int link_fd; int xsks_map_fd; char ifname[IFNAMSIZ]; }; @@ -409,7 +411,7 @@ static int xsk_load_xdp_prog(struct xsk_socket *xsk) static const int log_buf_size = 16 * 1024; struct xsk_ctx *ctx = xsk->ctx; char log_buf[log_buf_size]; - int err, prog_fd; + int prog_fd; /* This is the fallback C-program: * SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx) @@ -499,14 +501,43 @@ static int xsk_load_xdp_prog(struct xsk_socket *xsk) return prog_fd; } - err = bpf_set_link_xdp_fd(xsk->ctx->ifindex, prog_fd, - xsk->config.xdp_flags); + ctx->prog_fd = prog_fd; + return 0; +} + +static int xsk_create_bpf_link(struct xsk_socket *xsk) +{ + /* bpf_link only accepts XDP_FLAGS_MODES, but xsk->config.xdp_flags + * might have set XDP_FLAGS_UPDATE_IF_NOEXIST + */ + DECLARE_LIBBPF_OPTS(bpf_link_create_opts, opts, + .flags = (xsk->config.xdp_flags & XDP_FLAGS_MODES)); + struct xsk_ctx *ctx = xsk->ctx; + __u32 prog_id = 0; + int link_fd; + int err; + + err = bpf_get_link_xdp_id(ctx->ifindex, &prog_id, xsk->config.xdp_flags); if (err) { - close(prog_fd); + pr_warn("getting XDP prog id failed\n"); return err; } - ctx->prog_fd = prog_fd; + /* if there's a netlink-based XDP prog loaded on interface, bail out + * and ask user to do the removal by himself + */ + if (prog_id) { + pr_warn("Netlink-based XDP prog detected, please unload it in order to launch AF_XDP prog\n"); + return -EINVAL; + } + + link_fd = bpf_link_create(ctx->prog_fd, ctx->ifindex, BPF_XDP, &opts); + if (link_fd < 0) { + pr_warn("bpf_link_create failed: %s\n", strerror(errno)); + return link_fd; + } + + ctx->link_fd = link_fd; return 0; } @@ -626,8 +657,32 @@ static int xsk_lookup_bpf_maps(struct xsk_socket *xsk) } err = 0; - if (ctx->xsks_map_fd == -1) + if (ctx->xsks_map_fd != -1) + goto out_map_ids; + + /* if prog load is forced and we found bpf_link on a given ifindex BUT + * the underlying XDP prog is not an AF-XDP one, close old prog's fd, + * load AF-XDP and update existing bpf_link + */ + if (!(xsk->config.xdp_flags & XDP_FLAGS_UPDATE_IF_NOEXIST)) { + close(ctx->prog_fd); + err = xsk_create_bpf_maps(xsk); + if (err) + goto out_map_ids; + + err = xsk_load_xdp_prog(xsk); + if (err) { + xsk_delete_bpf_maps(xsk); + goto out_map_ids; + } + + /* if update failed, caller will close fds */ + err = bpf_link_update(ctx->link_fd, ctx->prog_fd, 0); + if (err) + pr_warn("bpf_link_update failed: %s\n", strerror(errno)); + } else { err = -ENOENT; + } out_map_ids: free(map_ids); @@ -667,6 +722,53 @@ static int xsk_create_xsk_struct(int ifindex, struct xsk_socket *xsk) return 0; } +static int xsk_link_lookup(struct xsk_ctx *ctx, __u32 *prog_id) +{ + struct bpf_link_info link_info; + __u32 link_len; + __u32 id = 0; + int err; + int fd; + + while (true) { + err = bpf_link_get_next_id(id, &id); + if (err) { + if (errno == ENOENT) { + err = 0; + break; + } + pr_warn("can't get next link: %s\n", strerror(errno)); + break; + } + + fd = bpf_link_get_fd_by_id(id); + if (fd < 0) { + if (errno == ENOENT) + continue; + pr_warn("can't get link by id (%u): %s\n", id, strerror(errno)); + err = -errno; + break; + } + + link_len = sizeof(struct bpf_link_info); + memset(&link_info, 0, link_len); + err = bpf_obj_get_info_by_fd(fd, &link_info, &link_len); + if (err) { + pr_warn("can't get link info: %s\n", strerror(errno)); + close(fd); + break; + } + if (link_info.xdp.ifindex == ctx->ifindex) { + ctx->link_fd = fd; + *prog_id = link_info.prog_id; + break; + } + close(fd); + } + + return err; +} + static int __xsk_setup_xdp_prog(struct xsk_socket *_xdp, int *xsks_map_fd) { @@ -675,8 +777,7 @@ static int __xsk_setup_xdp_prog(struct xsk_socket *_xdp, __u32 prog_id = 0; int err; - err = bpf_get_link_xdp_id(ctx->ifindex, &prog_id, - xsk->config.xdp_flags); + err = xsk_link_lookup(ctx, &prog_id); if (err) return err; @@ -686,9 +787,12 @@ static int __xsk_setup_xdp_prog(struct xsk_socket *_xdp, return err; err = xsk_load_xdp_prog(xsk); - if (err) { + if (err) goto err_load_xdp_prog; - } + + err = xsk_create_bpf_link(xsk); + if (err) + goto err_create_bpf_link; } else { ctx->prog_fd = bpf_prog_get_fd_by_id(prog_id); if (ctx->prog_fd < 0) @@ -696,20 +800,15 @@ static int __xsk_setup_xdp_prog(struct xsk_socket *_xdp, err = xsk_lookup_bpf_maps(xsk); if (err) { close(ctx->prog_fd); + close(ctx->link_fd); return err; } } if (xsk->rx) { err = xsk_set_bpf_maps(xsk); - if (err) { - if (!prog_id) { - goto err_set_bpf_maps; - } else { - close(ctx->prog_fd); - return err; - } - } + if (err) + goto err_set_bpf_maps; } if (xsks_map_fd) *xsks_map_fd = ctx->xsks_map_fd; @@ -717,8 +816,9 @@ static int __xsk_setup_xdp_prog(struct xsk_socket *_xdp, return 0; err_set_bpf_maps: + close(ctx->link_fd); +err_create_bpf_link: close(ctx->prog_fd); - bpf_set_link_xdp_fd(ctx->ifindex, -1, 0); err_load_xdp_prog: xsk_delete_bpf_maps(xsk); @@ -1054,6 +1154,7 @@ void xsk_socket__delete(struct xsk_socket *xsk) if (ctx->prog_fd != -1) { xsk_delete_bpf_maps(xsk); close(ctx->prog_fd); + close(ctx->link_fd); } err = xsk_get_mmap_offsets(xsk->fd, &off); From patchwork Thu Mar 11 15:29:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12131997 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,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 71B83C433E9 for ; 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d="scan'208";a="589253518" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:22 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 07/17] samples: bpf: do not unload prog within xdpsock Date: Thu, 11 Mar 2021 16:29:00 +0100 Message-Id: <20210311152910.56760-8-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net With the introduction of bpf_link in xsk's libbpf part, there's no further need for explicit unload of prog on xdpsock's termination. When process dies, the bpf_link's refcount will be decremented and resources will be unloaded/freed under the hood in case when there are no more active users. While at it, don't dump stats on error path. Signed-off-by: Maciej Fijalkowski --- samples/bpf/xdpsock_user.c | 55 ++++++++++---------------------------- 1 file changed, 14 insertions(+), 41 deletions(-) diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 1e2a1105d0e6..aa696854be78 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -96,7 +96,6 @@ static int opt_xsk_frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE; static int opt_timeout = 1000; static bool opt_need_wakeup = true; static u32 opt_num_xsks = 1; -static u32 prog_id; static bool opt_busy_poll; static bool opt_reduced_cap; @@ -462,59 +461,37 @@ static void *poller(void *arg) return NULL; } -static void remove_xdp_program(void) +static void int_exit(int sig) { - u32 curr_prog_id = 0; - int cmd = CLOSE_CONN; - - if (bpf_get_link_xdp_id(opt_ifindex, &curr_prog_id, opt_xdp_flags)) { - printf("bpf_get_link_xdp_id failed\n"); - exit(EXIT_FAILURE); - } - if (prog_id == curr_prog_id) - bpf_set_link_xdp_fd(opt_ifindex, -1, opt_xdp_flags); - else if (!curr_prog_id) - printf("couldn't find a prog id on a given interface\n"); - else - printf("program on interface changed, not removing\n"); - - if (opt_reduced_cap) { - if (write(sock, &cmd, sizeof(int)) < 0) { - fprintf(stderr, "Error writing into stream socket: %s", strerror(errno)); - exit(EXIT_FAILURE); - } - } + benchmark_done = true; } -static void int_exit(int sig) +static void __exit_with_error(int error, const char *file, const char *func, + int line) { - benchmark_done = true; + fprintf(stderr, "%s:%s:%i: errno: %d/\"%s\"\n", file, func, + line, error, strerror(error)); + exit(EXIT_FAILURE); } +#define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, __LINE__) + static void xdpsock_cleanup(void) { struct xsk_umem *umem = xsks[0]->umem->umem; - int i; + int i, cmd = CLOSE_CONN; dump_stats(); for (i = 0; i < num_socks; i++) xsk_socket__delete(xsks[i]->xsk); (void)xsk_umem__delete(umem); - remove_xdp_program(); -} -static void __exit_with_error(int error, const char *file, const char *func, - int line) -{ - fprintf(stderr, "%s:%s:%i: errno: %d/\"%s\"\n", file, func, - line, error, strerror(error)); - dump_stats(); - remove_xdp_program(); - exit(EXIT_FAILURE); + if (opt_reduced_cap) { + if (write(sock, &cmd, sizeof(int)) < 0) + exit_with_error(errno); + } } -#define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, \ - __LINE__) static void swap_mac_addresses(void *data) { struct ether_header *eth = (struct ether_header *)data; @@ -880,10 +857,6 @@ static struct xsk_socket_info *xsk_configure_socket(struct xsk_umem_info *umem, if (ret) exit_with_error(-ret); - ret = bpf_get_link_xdp_id(opt_ifindex, &prog_id, opt_xdp_flags); - if (ret) - exit_with_error(-ret); - xsk->app_stats.rx_empty_polls = 0; xsk->app_stats.fill_fail_polls = 0; xsk->app_stats.copy_tx_sendtos = 0; From patchwork Thu Mar 11 15:29:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12131999 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,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 6EC75C43381 for ; Thu, 11 Mar 2021 15:42:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 40A7764FDD for ; Thu, 11 Mar 2021 15:42:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234367AbhCKPl4 (ORCPT ); Thu, 11 Mar 2021 10:41:56 -0500 Received: from mga14.intel.com ([192.55.52.115]:42361 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234161AbhCKPlm (ORCPT ); Thu, 11 Mar 2021 10:41:42 -0500 IronPort-SDR: LFqCp+m2syVlHYNrNZR8ju+cBswSJOQy6uQhSqozz7UWY74ukm0MKJai8aDLInvGiLw3Q/548g 5OrK+A/k0LXA== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="188050704" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="188050704" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:28 -0800 IronPort-SDR: UyAefxnA0xA5wT/jGfFqJvF1FRIVuUWoJ2FKHGf949X39ZdWyevZ9jbakwDc9IYPIJZ9A2M40K PclJT/ugCNTA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253538" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:25 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 08/17] selftests: xsk: remove thread for netns switch Date: Thu, 11 Mar 2021 16:29:01 +0100 Message-Id: <20210311152910.56760-9-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Currently, there is a dedicated thread for following remote ns operations: - grabbing the ifindex of the interface moved to remote netns - removing xdp prog from that interface With bpf_link usage in place, this can be simply omitted, so remove mentioned thread, as BPF resources will be managed by bpf_link itself, so there's no further need for creating the thread that will switch to remote netns and do the cleanup. Keep most of the logic for switching the ns, though, but make switch_namespace() return the fd so that it will be possible to close it at the process termination time. Get rid of logic around making sure that it's possible to switch ns in validate_interfaces(). Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 123 +++-------------------- tools/testing/selftests/bpf/xdpxceiver.h | 10 +- 2 files changed, 14 insertions(+), 119 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 7c373695bbcc..6fcd5ca0877d 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -355,12 +355,15 @@ static void usage(const char *prog) ksft_print_msg(str, prog); } -static bool switch_namespace(int idx) +static int switch_namespace(const char *nsname) { char fqns[26] = "/var/run/netns/"; int nsfd; - strncat(fqns, ifdict[idx]->nsname, sizeof(fqns) - strlen(fqns) - 1); + if (!nsname || strlen(nsname) == 0) + return -1; + + strncat(fqns, nsname, sizeof(fqns) - strlen(fqns) - 1); nsfd = open(fqns, O_RDONLY); if (nsfd == -1) @@ -369,26 +372,9 @@ static bool switch_namespace(int idx) if (setns(nsfd, 0) == -1) exit_with_error(errno); - return true; -} - -static void *nsswitchthread(void *args) -{ - struct targs *targs = args; + print_verbose("NS switched: %s\n", nsname); - targs->retptr = false; - - if (switch_namespace(targs->idx)) { - ifdict[targs->idx]->ifindex = if_nametoindex(ifdict[targs->idx]->ifname); - if (!ifdict[targs->idx]->ifindex) { - ksft_test_result_fail("ERROR: [%s] interface \"%s\" does not exist\n", - __func__, ifdict[targs->idx]->ifname); - } else { - print_verbose("Interface found: %s\n", ifdict[targs->idx]->ifname); - targs->retptr = true; - } - } - pthread_exit(NULL); + return nsfd; } static int validate_interfaces(void) @@ -400,33 +386,6 @@ static int validate_interfaces(void) ret = false; ksft_test_result_fail("ERROR: interfaces: -i , -i ,."); } - if (strcmp(ifdict[i]->nsname, "")) { - struct targs *targs; - - targs = malloc(sizeof(*targs)); - if (!targs) - exit_with_error(errno); - - targs->idx = i; - if (pthread_create(&ns_thread, NULL, nsswitchthread, targs)) - exit_with_error(errno); - - pthread_join(ns_thread, NULL); - - if (targs->retptr) - print_verbose("NS switched: %s\n", ifdict[i]->nsname); - - free(targs); - } else { - ifdict[i]->ifindex = if_nametoindex(ifdict[i]->ifname); - if (!ifdict[i]->ifindex) { - ksft_test_result_fail - ("ERROR: interface \"%s\" does not exist\n", ifdict[i]->ifname); - ret = false; - } else { - print_verbose("Interface found: %s\n", ifdict[i]->ifname); - } - } } return ret; } @@ -844,8 +803,7 @@ static void *worker_testapp_validate(void *arg) if (bufs == MAP_FAILED) exit_with_error(errno); - if (strcmp(ifobject->nsname, "")) - switch_namespace(ifobject->ifdict_index); + ifobject->ns_fd = switch_namespace(ifobject->nsname); } if (ifobject->fv.vector == tx) { @@ -1060,60 +1018,6 @@ static void init_iface(struct ifobject *ifobj, const char *dst_mac, ifobj->src_port = src_port; } -static void *nsdisablemodethread(void *args) -{ - struct targs *targs = args; - - targs->retptr = false; - - if (switch_namespace(targs->idx)) { - targs->retptr = bpf_set_link_xdp_fd(ifdict[targs->idx]->ifindex, -1, targs->flags); - } else { - targs->retptr = errno; - print_verbose("Failed to switch namespace to %s\n", ifdict[targs->idx]->nsname); - } - - pthread_exit(NULL); -} - -static void disable_xdp_mode(int mode) -{ - int err = 0; - __u32 flags = XDP_FLAGS_UPDATE_IF_NOEXIST | mode; - char *mode_str = mode & XDP_FLAGS_SKB_MODE ? "skb" : "drv"; - - for (int i = 0; i < MAX_INTERFACES; i++) { - if (strcmp(ifdict[i]->nsname, "")) { - struct targs *targs; - - targs = malloc(sizeof(*targs)); - memset(targs, 0, sizeof(*targs)); - if (!targs) - exit_with_error(errno); - - targs->idx = i; - targs->flags = flags; - if (pthread_create(&ns_thread, NULL, nsdisablemodethread, targs)) - exit_with_error(errno); - - pthread_join(ns_thread, NULL); - err = targs->retptr; - free(targs); - } else { - err = bpf_set_link_xdp_fd(ifdict[i]->ifindex, -1, flags); - } - - if (err) { - print_verbose("Failed to disable %s mode on interface %s\n", - mode_str, ifdict[i]->ifname); - exit_with_error(err); - } - - print_verbose("Disabled %s mode for interface: %s\n", mode_str, ifdict[i]->ifname); - configured_mode = mode & XDP_FLAGS_SKB_MODE ? TEST_MODE_DRV : TEST_MODE_SKB; - } -} - static void run_pkt_test(int mode, int type) { test_type = type; @@ -1133,13 +1037,9 @@ static void run_pkt_test(int mode, int type) switch (mode) { case (TEST_MODE_SKB): - if (configured_mode == TEST_MODE_DRV) - disable_xdp_mode(XDP_FLAGS_DRV_MODE); xdp_flags |= XDP_FLAGS_SKB_MODE; break; case (TEST_MODE_DRV): - if (configured_mode == TEST_MODE_SKB) - disable_xdp_mode(XDP_FLAGS_SKB_MODE); xdp_flags |= XDP_FLAGS_DRV_MODE; break; default: @@ -1186,8 +1086,6 @@ int main(int argc, char **argv) ifdict[1]->fv.vector = rx; init_iface(ifdict[1], MAC2, MAC1, IP2, IP1, UDP_PORT2, UDP_PORT1); - disable_xdp_mode(XDP_FLAGS_DRV_MODE); - ksft_set_plan(TEST_MODE_MAX * TEST_TYPE_MAX); for (i = 0; i < TEST_MODE_MAX; i++) { @@ -1195,8 +1093,11 @@ int main(int argc, char **argv) run_pkt_test(i, j); } - for (int i = 0; i < MAX_INTERFACES; i++) + for (int i = 0; i < MAX_INTERFACES; i++) { + if (ifdict[i]->ns_fd != -1) + close(ifdict[i]->ns_fd); free(ifdict[i]); + } ksft_exit_pass(); diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 8f9308099318..493f7498d40e 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -126,7 +126,7 @@ struct generic_data { }; struct ifobject { - int ifindex; + int ns_fd; int ifdict_index; char ifname[MAX_INTERFACE_NAME_CHARS]; char nsname[MAX_INTERFACES_NAMESPACE_CHARS]; @@ -150,15 +150,9 @@ pthread_mutex_t sync_mutex; pthread_mutex_t sync_mutex_tx; pthread_cond_t signal_rx_condition; pthread_cond_t signal_tx_condition; -pthread_t t0, t1, ns_thread; +pthread_t t0, t1; pthread_attr_t attr; -struct targs { - u8 retptr; - int idx; - u32 flags; -}; - TAILQ_HEAD(head_s, pkt) head = TAILQ_HEAD_INITIALIZER(head); struct head_s *head_p; struct pkt { From patchwork Thu Mar 11 15:29:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12131995 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,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 9A845C433DB for ; Thu, 11 Mar 2021 15:42:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 54DC864FB8 for ; Thu, 11 Mar 2021 15:42:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234364AbhCKPl4 (ORCPT ); Thu, 11 Mar 2021 10:41:56 -0500 Received: from mga14.intel.com ([192.55.52.115]:42361 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234249AbhCKPlm (ORCPT ); Thu, 11 Mar 2021 10:41:42 -0500 IronPort-SDR: Q1jCPc72MR2WfCkqXdJ8d0h9wjK8JydBzkZzNH+DnTvsezQ505QgqdW+BL6Q783fphvIu89yVX KJqn5eQYY8yw== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="188050709" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="188050709" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:32 -0800 IronPort-SDR: mqiaG4IwAfiiQrRyamnZIUN91dTh+eZcI1Q2udPxOZmlEj2ylwuSahlQpQ/oZY1bPZfZI+9PW2 A779CigVUbwg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253570" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:28 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 09/17] selftests: xsk: split worker thread Date: Thu, 11 Mar 2021 16:29:02 +0100 Message-Id: <20210311152910.56760-10-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Let's a have a separate Tx/Rx worker threads instead of a one common thread packed with Tx/Rx specific checks. Move mmap for umem buffer space and a switch_namespace() call to thread_common_ops. This also allows for a bunch of simplifactions that are the subject of the next commits. The final result will be a code base that is much easier to follow. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 156 +++++++++++------------ 1 file changed, 77 insertions(+), 79 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 6fcd5ca0877d..7bf5c31f2705 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -761,6 +761,15 @@ static void thread_common_ops(struct ifobject *ifobject, void *bufs, pthread_mut int ctr = 0; int ret; + pthread_attr_setstacksize(&attr, THREAD_STACK); + + bufs = mmap(NULL, num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE, + PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + if (bufs == MAP_FAILED) + exit_with_error(errno); + + ifobject->ns_fd = switch_namespace(ifobject->nsname); + xsk_configure_umem(ifobject, bufs, num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE); ret = xsk_configure_socket(ifobject); @@ -783,9 +792,12 @@ static void thread_common_ops(struct ifobject *ifobject, void *bufs, pthread_mut if (ctr >= SOCK_RECONF_CTR) exit_with_error(ret); + + print_verbose("Interface [%s] vector [%s]\n", + ifobject->ifname, ifobject->fv.vector == tx ? "Tx" : "Rx"); } -static void *worker_testapp_validate(void *arg) +static void *worker_testapp_validate_tx(void *arg) { struct udphdr *udp_hdr = (struct udphdr *)(pkt_data + sizeof(struct ethhdr) + sizeof(struct iphdr)); @@ -793,97 +805,83 @@ static void *worker_testapp_validate(void *arg) struct ethhdr *eth_hdr = (struct ethhdr *)pkt_data; struct ifobject *ifobject = (struct ifobject *)arg; struct generic_data data; + int spinningrxctr = 0; void *bufs = NULL; - pthread_attr_setstacksize(&attr, THREAD_STACK); + if (!bidi_pass) + thread_common_ops(ifobject, bufs, &sync_mutex_tx, &spinning_tx); - if (!bidi_pass) { - bufs = mmap(NULL, num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE, - PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - if (bufs == MAP_FAILED) - exit_with_error(errno); - - ifobject->ns_fd = switch_namespace(ifobject->nsname); + while (atomic_load(&spinning_rx) && spinningrxctr < SOCK_RECONF_CTR) { + spinningrxctr++; + usleep(USLEEP_MAX); } - if (ifobject->fv.vector == tx) { - int spinningrxctr = 0; + for (int i = 0; i < num_frames; i++) { + /*send EOT frame */ + if (i == (num_frames - 1)) + data.seqnum = -1; + else + data.seqnum = i; + gen_udp_hdr(&data, ifobject, udp_hdr); + gen_ip_hdr(ifobject, ip_hdr); + gen_udp_csum(udp_hdr, ip_hdr); + gen_eth_hdr(ifobject, eth_hdr); + gen_eth_frame(ifobject->umem, i * XSK_UMEM__DEFAULT_FRAME_SIZE); + } - if (!bidi_pass) - thread_common_ops(ifobject, bufs, &sync_mutex_tx, &spinning_tx); + print_verbose("Sending %d packets on interface %s\n", + (opt_pkt_count - 1), ifobject->ifname); + tx_only_all(ifobject); - while (atomic_load(&spinning_rx) && spinningrxctr < SOCK_RECONF_CTR) { - spinningrxctr++; - usleep(USLEEP_MAX); - } + if ((test_type != TEST_TYPE_BIDI) || bidi_pass) { + xsk_socket__delete(ifobject->xsk->xsk); + (void)xsk_umem__delete(ifobject->umem->umem); + } + pthread_exit(NULL); +} - 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)) - data.seqnum = -1; - else - data.seqnum = i; - gen_udp_hdr(&data, ifobject, udp_hdr); - gen_ip_hdr(ifobject, ip_hdr); - gen_udp_csum(udp_hdr, ip_hdr); - gen_eth_hdr(ifobject, eth_hdr); - gen_eth_frame(ifobject->umem, i * XSK_UMEM__DEFAULT_FRAME_SIZE); - } +static void *worker_testapp_validate_rx(void *arg) +{ + struct ifobject *ifobject = (struct ifobject *)arg; + struct pollfd fds[MAX_SOCKS] = { }; + void *bufs = NULL; - 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) { - struct pollfd fds[MAX_SOCKS] = { }; - int ret; - - if (!bidi_pass) - thread_common_ops(ifobject, bufs, &sync_mutex_tx, &spinning_rx); - - print_verbose("Interface [%s] vector [Rx]\n", ifobject->ifname); - if (stat_test_type != STAT_TEST_RX_FILL_EMPTY) - xsk_populate_fill_ring(ifobject->umem); - - TAILQ_INIT(&head); - if (debug_pkt_dump) { - pkt_buf = calloc(num_frames, sizeof(*pkt_buf)); - if (!pkt_buf) - exit_with_error(errno); - } + if (!bidi_pass) + thread_common_ops(ifobject, bufs, &sync_mutex_tx, &spinning_rx); - fds[0].fd = xsk_socket__fd(ifobject->xsk->xsk); - fds[0].events = POLLIN; + if (stat_test_type != STAT_TEST_RX_FILL_EMPTY) + xsk_populate_fill_ring(ifobject->umem); - pthread_mutex_lock(&sync_mutex); - pthread_cond_signal(&signal_rx_condition); - pthread_mutex_unlock(&sync_mutex); + TAILQ_INIT(&head); + if (debug_pkt_dump) { + pkt_buf = calloc(num_frames, sizeof(*pkt_buf)); + if (!pkt_buf) + exit_with_error(errno); + } - while (1) { - if (test_type == TEST_TYPE_POLL) { - ret = poll(fds, 1, POLL_TMOUT); - if (ret <= 0) - continue; - } + fds[0].fd = xsk_socket__fd(ifobject->xsk->xsk); + fds[0].events = POLLIN; - if (test_type != TEST_TYPE_STATS) { - rx_pkt(ifobject->xsk, fds); - worker_pkt_validate(); - } else { - worker_stats_validate(ifobject); - } + pthread_mutex_lock(&sync_mutex); + pthread_cond_signal(&signal_rx_condition); + pthread_mutex_unlock(&sync_mutex); - if (sigvar) - break; + while (1) { + if (test_type != TEST_TYPE_STATS) { + rx_pkt(ifobject->xsk, fds); + worker_pkt_validate(); + } else { + worker_stats_validate(ifobject); } + if (sigvar) + break; + } - if (test_type != TEST_TYPE_STATS) - print_verbose("Received %d packets on interface %s\n", - pkt_counter, ifobject->ifname); + print_verbose("Received %d packets on interface %s\n", + pkt_counter, ifobject->ifname); - if (test_type == TEST_TYPE_TEARDOWN) - print_verbose("Destroying socket\n"); - } + if (test_type == TEST_TYPE_TEARDOWN) + print_verbose("Destroying socket\n"); if ((test_type != TEST_TYPE_BIDI) || bidi_pass) { xsk_socket__delete(ifobject->xsk->xsk); @@ -912,12 +910,12 @@ static void testapp_validate(void) /*Spawn RX thread */ if (!bidi || !bidi_pass) { - if (pthread_create(&t0, &attr, worker_testapp_validate, ifdict[1])) + if (pthread_create(&t0, &attr, worker_testapp_validate_rx, ifdict[1])) exit_with_error(errno); } else if (bidi && bidi_pass) { /*switch Tx/Rx vectors */ ifdict[0]->fv.vector = rx; - if (pthread_create(&t0, &attr, worker_testapp_validate, ifdict[0])) + if (pthread_create(&t0, &attr, worker_testapp_validate_rx, ifdict[0])) exit_with_error(errno); } @@ -932,12 +930,12 @@ static void testapp_validate(void) /*Spawn TX thread */ if (!bidi || !bidi_pass) { - if (pthread_create(&t1, &attr, worker_testapp_validate, ifdict[0])) + if (pthread_create(&t1, &attr, worker_testapp_validate_tx, ifdict[0])) exit_with_error(errno); } else if (bidi && bidi_pass) { /*switch Tx/Rx vectors */ ifdict[1]->fv.vector = tx; - if (pthread_create(&t1, &attr, worker_testapp_validate, ifdict[1])) + if (pthread_create(&t1, &attr, worker_testapp_validate_tx, ifdict[1])) exit_with_error(errno); } From patchwork Thu Mar 11 15:29:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132009 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,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 C715AC4332D for ; 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d="scan'208";a="589253586" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:32 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 10/17] selftests: xsk: remove Tx synchronization resources Date: Thu, 11 Mar 2021 16:29:03 +0100 Message-Id: <20210311152910.56760-11-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Tx thread needs to be started after the Rx side is fully initialized so that packets are not xmitted until xsk Rx socket is ready to be used. It can be observed that atomic variable spinning_tx is not checked from Rx side in any way, so thread_common_ops can be modified to only address the spinning_rx. This means that spinning_tx can be removed altogheter. signal_tx_condition is never utilized, so simply remove it. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 15 +++++++-------- tools/testing/selftests/bpf/xdpxceiver.h | 2 -- 2 files changed, 7 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 7bf5c31f2705..e461998f4b5f 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -126,7 +126,6 @@ static void pthread_init_mutex(void) pthread_mutex_init(&sync_mutex, NULL); pthread_mutex_init(&sync_mutex_tx, NULL); pthread_cond_init(&signal_rx_condition, NULL); - pthread_cond_init(&signal_tx_condition, NULL); } static void pthread_destroy_mutex(void) @@ -134,7 +133,6 @@ static void pthread_destroy_mutex(void) pthread_mutex_destroy(&sync_mutex); pthread_mutex_destroy(&sync_mutex_tx); pthread_cond_destroy(&signal_rx_condition); - pthread_cond_destroy(&signal_tx_condition); } static void *memset32_htonl(void *dest, u32 val, u32 size) @@ -755,8 +753,7 @@ static void worker_pkt_validate(void) } } -static void thread_common_ops(struct ifobject *ifobject, void *bufs, pthread_mutex_t *mutexptr, - atomic_int *spinningptr) +static void thread_common_ops(struct ifobject *ifobject, void *bufs, pthread_mutex_t *mutexptr) { int ctr = 0; int ret; @@ -781,13 +778,15 @@ static void thread_common_ops(struct ifobject *ifobject, void *bufs, pthread_mut */ pthread_mutex_lock(mutexptr); while (ret && ctr < SOCK_RECONF_CTR) { - atomic_store(spinningptr, 1); + if (ifobject->fv.vector == rx) + atomic_store(&spinning_rx, 1); xsk_configure_umem(ifobject, bufs, num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE); ret = xsk_configure_socket(ifobject); usleep(USLEEP_MAX); ctr++; } - atomic_store(spinningptr, 0); + if (ifobject->fv.vector == rx) + atomic_store(&spinning_rx, 0); pthread_mutex_unlock(mutexptr); if (ctr >= SOCK_RECONF_CTR) @@ -809,7 +808,7 @@ static void *worker_testapp_validate_tx(void *arg) void *bufs = NULL; if (!bidi_pass) - thread_common_ops(ifobject, bufs, &sync_mutex_tx, &spinning_tx); + thread_common_ops(ifobject, bufs, &sync_mutex_tx); while (atomic_load(&spinning_rx) && spinningrxctr < SOCK_RECONF_CTR) { spinningrxctr++; @@ -847,7 +846,7 @@ static void *worker_testapp_validate_rx(void *arg) void *bufs = NULL; if (!bidi_pass) - thread_common_ops(ifobject, bufs, &sync_mutex_tx, &spinning_rx); + thread_common_ops(ifobject, bufs, &sync_mutex_tx); if (stat_test_type != STAT_TEST_RX_FILL_EMPTY) xsk_populate_fill_ring(ifobject->umem); diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 493f7498d40e..483be41229c6 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -144,12 +144,10 @@ struct ifobject { static struct ifobject *ifdict[MAX_INTERFACES]; /*threads*/ -atomic_int spinning_tx; atomic_int spinning_rx; pthread_mutex_t sync_mutex; pthread_mutex_t sync_mutex_tx; pthread_cond_t signal_rx_condition; -pthread_cond_t signal_tx_condition; pthread_t t0, t1; pthread_attr_t attr; From patchwork Thu Mar 11 15:29:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132005 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,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 ED5F0C43333 for ; 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d="scan'208";a="589253594" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:35 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 11/17] selftests: xsk: refactor teardown/bidi test cases and testapp_validate Date: Thu, 11 Mar 2021 16:29:04 +0100 Message-Id: <20210311152910.56760-12-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Currently, there is a testapp_sockets() that acts like a wrapper around testapp_validate() and it is called for bidi and teardown test types. Other test types call testapp_validate() directly. Split testapp_sockets() onto two separate functions so a bunch of bidi specific logic can be moved there and out of testapp_validate() itself. Introduce function pointer to ifobject struct which will be used for assigning the Rx/Tx function that is assigned to worker thread. Let's also have a global ifobject Rx/Tx pointers so it's easier to swap the vectors on a second run of a bi-directional test. Thread creation now is easey to follow. switching_notify variable is useless, info about vector switch can be printed based on bidi_pass state. Last but not least, init/destroy synchronization variables only once, not per each test. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 117 ++++++++++++++--------- tools/testing/selftests/bpf/xdpxceiver.h | 14 +-- 2 files changed, 78 insertions(+), 53 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index e461998f4b5f..b9f25aac90a4 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -897,26 +897,10 @@ static void testapp_validate(void) pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, THREAD_STACK); - if ((test_type == TEST_TYPE_BIDI) && bidi_pass) { - pthread_init_mutex(); - if (!switching_notify) { - print_verbose("Switching Tx/Rx vectors\n"); - switching_notify++; - } - } - pthread_mutex_lock(&sync_mutex); /*Spawn RX thread */ - if (!bidi || !bidi_pass) { - if (pthread_create(&t0, &attr, worker_testapp_validate_rx, ifdict[1])) - exit_with_error(errno); - } else if (bidi && bidi_pass) { - /*switch Tx/Rx vectors */ - ifdict[0]->fv.vector = rx; - if (pthread_create(&t0, &attr, worker_testapp_validate_rx, ifdict[0])) - exit_with_error(errno); - } + pthread_create(&t0, &attr, ifdict_rx->func_ptr, ifdict_rx); if (clock_gettime(CLOCK_REALTIME, &max_wait)) exit_with_error(errno); @@ -928,15 +912,7 @@ static void testapp_validate(void) pthread_mutex_unlock(&sync_mutex); /*Spawn TX thread */ - if (!bidi || !bidi_pass) { - if (pthread_create(&t1, &attr, worker_testapp_validate_tx, ifdict[0])) - exit_with_error(errno); - } else if (bidi && bidi_pass) { - /*switch Tx/Rx vectors */ - ifdict[1]->fv.vector = tx; - if (pthread_create(&t1, &attr, worker_testapp_validate_tx, ifdict[1])) - exit_with_error(errno); - } + pthread_create(&t1, &attr, ifdict_tx->func_ptr, ifdict_tx); pthread_join(t1, NULL); pthread_join(t0, NULL); @@ -954,18 +930,53 @@ static void testapp_validate(void) print_ksft_result(); } -static void testapp_sockets(void) +static void testapp_teardown(void) +{ + int i; + + for (i = 0; i < MAX_TEARDOWN_ITER; i++) { + pkt_counter = 0; + prev_pkt = -1; + sigvar = 0; + print_verbose("Creating socket\n"); + testapp_validate(); + } + + print_ksft_result(); +} + +static void swap_vectors(struct ifobject *ifobj1, struct ifobject *ifobj2) +{ + void *(*tmp_func_ptr)(void *) = ifobj1->func_ptr; + enum fvector tmp_vector = ifobj1->fv.vector; + + ifobj1->func_ptr = ifobj2->func_ptr; + ifobj1->fv.vector = ifobj2->fv.vector; + + ifobj2->func_ptr = tmp_func_ptr; + ifobj2->fv.vector = tmp_vector; + + ifdict_tx = ifobj1; + ifdict_rx = ifobj2; +} + +static void testapp_bidi(void) { - for (int i = 0; i < ((test_type == TEST_TYPE_TEARDOWN) ? MAX_TEARDOWN_ITER : MAX_BIDI_ITER); - i++) { + for (int i = 0; i < MAX_BIDI_ITER; i++) { pkt_counter = 0; prev_pkt = -1; sigvar = 0; print_verbose("Creating socket\n"); testapp_validate(); - test_type == TEST_TYPE_BIDI ? bidi_pass++ : bidi_pass; + if (!bidi_pass) { + print_verbose("Switching Tx/Rx vectors\n"); + swap_vectors(ifdict[1], ifdict[0]); + } + bidi_pass++; } + swap_vectors(ifdict[0], ifdict[1]); + print_ksft_result(); } @@ -998,7 +1009,7 @@ static void testapp_stats(void) static void init_iface(struct ifobject *ifobj, const char *dst_mac, const char *src_mac, const char *dst_ip, const char *src_ip, const u16 dst_port, - const u16 src_port) + const u16 src_port, enum fvector vector) { struct in_addr ip; @@ -1013,6 +1024,16 @@ static void init_iface(struct ifobject *ifobj, const char *dst_mac, ifobj->dst_port = dst_port; ifobj->src_port = src_port; + + if (vector == tx) { + ifobj->fv.vector = tx; + ifobj->func_ptr = worker_testapp_validate_tx; + ifdict_tx = ifobj; + } else { + ifobj->fv.vector = rx; + ifobj->func_ptr = worker_testapp_validate_rx; + ifdict_rx = ifobj; + } } static void run_pkt_test(int mode, int type) @@ -1022,11 +1043,8 @@ static void run_pkt_test(int mode, int 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; sigvar = 0; stat_test_type = -1; rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS; @@ -1043,16 +1061,20 @@ static void run_pkt_test(int mode, int type) break; } - pthread_init_mutex(); - - if (test_type == TEST_TYPE_STATS) + switch (test_type) { + case TEST_TYPE_STATS: testapp_stats(); - else if ((test_type != TEST_TYPE_TEARDOWN) && (test_type != TEST_TYPE_BIDI)) + break; + case TEST_TYPE_TEARDOWN: + testapp_teardown(); + break; + case TEST_TYPE_BIDI: + testapp_bidi(); + break; + default: testapp_validate(); - else - testapp_sockets(); - - pthread_destroy_mutex(); + break; + } } int main(int argc, char **argv) @@ -1077,14 +1099,13 @@ int main(int argc, char **argv) num_frames = ++opt_pkt_count; - ifdict[0]->fv.vector = tx; - init_iface(ifdict[0], MAC1, MAC2, IP1, IP2, UDP_PORT1, UDP_PORT2); - - ifdict[1]->fv.vector = rx; - init_iface(ifdict[1], MAC2, MAC1, IP2, IP1, UDP_PORT2, UDP_PORT1); + init_iface(ifdict[0], MAC1, MAC2, IP1, IP2, UDP_PORT1, UDP_PORT2, tx); + init_iface(ifdict[1], MAC2, MAC1, IP2, IP1, UDP_PORT2, UDP_PORT1, rx); ksft_set_plan(TEST_MODE_MAX * TEST_TYPE_MAX); + pthread_init_mutex(); + for (i = 0; i < TEST_MODE_MAX; i++) { for (j = 0; j < TEST_TYPE_MAX; j++) run_pkt_test(i, j); @@ -1096,6 +1117,8 @@ int main(int argc, char **argv) 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 483be41229c6..0318f7921f50 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -77,7 +77,6 @@ enum STAT_TEST_TYPES { static int configured_mode = TEST_MODE_UNCONFIGURED; static u8 debug_pkt_dump; static u32 num_frames; -static u8 switching_notify; static u8 bidi_pass; static int test_type; @@ -126,22 +125,25 @@ struct generic_data { }; struct ifobject { - int ns_fd; - int ifdict_index; char ifname[MAX_INTERFACE_NAME_CHARS]; char nsname[MAX_INTERFACES_NAMESPACE_CHARS]; - struct flow_vector fv; struct xsk_socket_info *xsk; struct xsk_umem_info *umem; - u8 dst_mac[ETH_ALEN]; - u8 src_mac[ETH_ALEN]; + void *(*func_ptr)(void *); + struct flow_vector fv; + int ns_fd; + int ifdict_index; u32 dst_ip; u32 src_ip; u16 src_port; u16 dst_port; + u8 dst_mac[ETH_ALEN]; + u8 src_mac[ETH_ALEN]; }; static struct ifobject *ifdict[MAX_INTERFACES]; +static struct ifobject *ifdict_rx; +static struct ifobject *ifdict_tx; /*threads*/ atomic_int spinning_rx; From patchwork Thu Mar 11 15:29:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132003 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,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 E7D8DC43331 for ; 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d="scan'208";a="589253603" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:37 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 12/17] selftests: xsk: remove sync_mutex_tx and atomic var Date: Thu, 11 Mar 2021 16:29:05 +0100 Message-Id: <20210311152910.56760-13-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Although thread_common_ops() are called in both Tx and Rx threads, testapp_validate() will not spawn Tx thread until Rx thread signals that it has finished its initialization via condition variable. Therefore, locking in thread_common_ops is not needed and furthermore Tx thread does not have to spin on atomic variable. Note that this simplification wouldn't be possible if there would still be a common worker thread. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/xdpxceiver.c | 31 ++++++------------------ tools/testing/selftests/bpf/xdpxceiver.h | 2 -- 2 files changed, 7 insertions(+), 26 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index b9f25aac90a4..aef5840e1c24 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -121,17 +121,15 @@ static void __exit_with_error(int error, const char *file, const char *func, int test_type == TEST_TYPE_BIDI ? "Bi-directional Sockets" : "",\ test_type == TEST_TYPE_STATS ? "Stats" : "")) -static void pthread_init_mutex(void) +static void init_sync_resources(void) { pthread_mutex_init(&sync_mutex, NULL); - pthread_mutex_init(&sync_mutex_tx, NULL); pthread_cond_init(&signal_rx_condition, NULL); } -static void pthread_destroy_mutex(void) +static void destroy_sync_resources(void) { pthread_mutex_destroy(&sync_mutex); - pthread_mutex_destroy(&sync_mutex_tx); pthread_cond_destroy(&signal_rx_condition); } @@ -753,7 +751,7 @@ static void worker_pkt_validate(void) } } -static void thread_common_ops(struct ifobject *ifobject, void *bufs, pthread_mutex_t *mutexptr) +static void thread_common_ops(struct ifobject *ifobject, void *bufs) { int ctr = 0; int ret; @@ -772,22 +770,13 @@ static void thread_common_ops(struct ifobject *ifobject, void *bufs, pthread_mut /* Retry Create Socket if it fails as xsk_socket__create() * is asynchronous - * - * Essential to lock Mutex here to prevent Tx thread from - * entering before Rx and causing a deadlock */ - pthread_mutex_lock(mutexptr); while (ret && ctr < SOCK_RECONF_CTR) { - if (ifobject->fv.vector == rx) - atomic_store(&spinning_rx, 1); xsk_configure_umem(ifobject, bufs, num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE); ret = xsk_configure_socket(ifobject); usleep(USLEEP_MAX); ctr++; } - if (ifobject->fv.vector == rx) - atomic_store(&spinning_rx, 0); - pthread_mutex_unlock(mutexptr); if (ctr >= SOCK_RECONF_CTR) exit_with_error(ret); @@ -804,16 +793,10 @@ static void *worker_testapp_validate_tx(void *arg) struct ethhdr *eth_hdr = (struct ethhdr *)pkt_data; struct ifobject *ifobject = (struct ifobject *)arg; struct generic_data data; - int spinningrxctr = 0; void *bufs = NULL; if (!bidi_pass) - thread_common_ops(ifobject, bufs, &sync_mutex_tx); - - while (atomic_load(&spinning_rx) && spinningrxctr < SOCK_RECONF_CTR) { - spinningrxctr++; - usleep(USLEEP_MAX); - } + thread_common_ops(ifobject, bufs); for (int i = 0; i < num_frames; i++) { /*send EOT frame */ @@ -846,7 +829,7 @@ static void *worker_testapp_validate_rx(void *arg) void *bufs = NULL; if (!bidi_pass) - thread_common_ops(ifobject, bufs, &sync_mutex_tx); + thread_common_ops(ifobject, bufs); if (stat_test_type != STAT_TEST_RX_FILL_EMPTY) xsk_populate_fill_ring(ifobject->umem); @@ -1104,7 +1087,7 @@ int main(int argc, char **argv) ksft_set_plan(TEST_MODE_MAX * TEST_TYPE_MAX); - pthread_init_mutex(); + init_sync_resources(); for (i = 0; i < TEST_MODE_MAX; i++) { for (j = 0; j < TEST_TYPE_MAX; j++) @@ -1117,7 +1100,7 @@ int main(int argc, char **argv) free(ifdict[i]); } - pthread_destroy_mutex(); + destroy_sync_resources(); ksft_exit_pass(); diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 0318f7921f50..44e2663d069d 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -146,9 +146,7 @@ static struct ifobject *ifdict_rx; static struct ifobject *ifdict_tx; /*threads*/ -atomic_int spinning_rx; pthread_mutex_t sync_mutex; -pthread_mutex_t sync_mutex_tx; pthread_cond_t signal_rx_condition; pthread_t t0, t1; pthread_attr_t attr; From patchwork Thu Mar 11 15:29:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132007 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,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 17A5CC43332 for ; Thu, 11 Mar 2021 15:42:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E38E264FDD for ; Thu, 11 Mar 2021 15:42:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234392AbhCKPl6 (ORCPT ); Thu, 11 Mar 2021 10:41:58 -0500 Received: from mga14.intel.com ([192.55.52.115]:42370 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234356AbhCKPlo (ORCPT ); Thu, 11 Mar 2021 10:41:44 -0500 IronPort-SDR: xlDICF83Ao1fAPkWrBQTFHlhSylMbhDoa0r7D8ICH5UuSUsXMgBBDeJst04WjYy9FMcbntBibd kaO+7zdZVs8w== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="188050733" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="188050733" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:43 -0800 IronPort-SDR: nylBu8SpOyf6FVCvO5zhAlHlUlgPSEigj96ZhuT+zAKa8pQ21bMVPD3gukmPP/uRDnEqDa/PZ1 W/IiZmthMAWw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253618" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:40 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 13/17] veth: implement ethtool's get_channels() callback Date: Thu, 11 Mar 2021 16:29:06 +0100 Message-Id: <20210311152910.56760-14-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Libbpf's xsk part calls get_channels() API to retrieve the queue count of the underlying driver so that XSKMAP is sized accordingly. Implement that in veth so multi queue scenarios can work properly. Signed-off-by: Maciej Fijalkowski --- drivers/net/veth.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/veth.c b/drivers/net/veth.c index aa1a66ad2ce5..efca3d45f5c2 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -218,6 +218,17 @@ static void veth_get_ethtool_stats(struct net_device *dev, } } +static void veth_get_channels(struct net_device *dev, + struct ethtool_channels *channels) +{ + channels->tx_count = dev->real_num_tx_queues; + channels->rx_count = dev->real_num_rx_queues; + channels->max_tx = dev->real_num_tx_queues; + channels->max_rx = dev->real_num_rx_queues; + channels->combined_count = min(dev->real_num_rx_queues, dev->real_num_rx_queues); + channels->max_combined = min(dev->real_num_rx_queues, dev->real_num_rx_queues); +} + static const struct ethtool_ops veth_ethtool_ops = { .get_drvinfo = veth_get_drvinfo, .get_link = ethtool_op_get_link, @@ -226,6 +237,7 @@ static const struct ethtool_ops veth_ethtool_ops = { .get_ethtool_stats = veth_get_ethtool_stats, .get_link_ksettings = veth_get_link_ksettings, .get_ts_info = ethtool_op_get_ts_info, + .get_channels = veth_get_channels, }; /* general routines */ From patchwork Thu Mar 11 15:29:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132015 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,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 8E7E4C43603 for ; Thu, 11 Mar 2021 15:42:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6569164FE0 for ; Thu, 11 Mar 2021 15:42:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234407AbhCKPmA (ORCPT ); Thu, 11 Mar 2021 10:42:00 -0500 Received: from mga14.intel.com ([192.55.52.115]:42370 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234357AbhCKPlq (ORCPT ); Thu, 11 Mar 2021 10:41:46 -0500 IronPort-SDR: m6xtWD6+XUgEO6sfvDkDPgcE2UfuMEEjHl7EaKhdonFtQrDmSPTzWWfpu4vaMjy0zAG+fV2pJm kBJ94wDLPGIQ== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="188050746" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="188050746" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:46 -0800 IronPort-SDR: XaKd8D0lItQ3GVGyXZeHNsChibJA0DCANLMW/vx4x1tj6HsNoh7ghuU20JQ1/F1P58cRRG0eQ2 GH4epm9cKpMw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253639" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:43 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com, Maciej Fijalkowski Subject: [PATCH v2 bpf-next 14/17] selftests: xsk: implement bpf_link test Date: Thu, 11 Mar 2021 16:29:07 +0100 Message-Id: <20210311152910.56760-15-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Introduce a test that is supposed to verify the persistence of BPF resources based on underlying bpf_link usage. Test will: 1) create and bind two sockets on queue ids 0 and 1 2) run a traffic on queue ids 0 3) remove xsk sockets from queue 0 on both veth interfaces 4) run a traffic on queues ids 1 Running traffic successfully on qids 1 means that BPF resources were not removed on step 3). In order to make it work, change the command that creates veth pair to have the 4 queue pairs by default. Introduce the arrays of xsks and umems to ifobject struct but keep a pointers to single entities, so rest of the logic around Rx/Tx can be kept as-is. For umem handling, double the size of mmapped space and split that between the two sockets. Rename also bidi_pass to a variable 'second_step' of a boolean type as it's now used also for the test that is introduced here and it doesn't have anything in common with bi-directional testing. Drop opt_queue command line argument as it wasn't working before anyway. Signed-off-by: Maciej Fijalkowski --- tools/testing/selftests/bpf/test_xsk.sh | 2 +- tools/testing/selftests/bpf/xdpxceiver.c | 179 +++++++++++++++++------ tools/testing/selftests/bpf/xdpxceiver.h | 7 +- 3 files changed, 138 insertions(+), 50 deletions(-) diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index 56d4474e2c83..2a00b8222475 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -107,7 +107,7 @@ setup_vethPairs() { echo "setting up ${VETH0}: namespace: ${NS0}" fi ip netns add ${NS1} - ip link add ${VETH0} type veth peer name ${VETH1} + ip link add ${VETH0} numtxqueues 4 numrxqueues 4 type veth peer name ${VETH1} numtxqueues 4 numrxqueues 4 if [ -f /proc/net/if_inet6 ]; then echo 1 > /proc/sys/net/ipv6/conf/${VETH0}/disable_ipv6 fi diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index aef5840e1c24..dc775ee139c5 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -41,8 +41,12 @@ * Reduce the size of the RX ring to a fraction of the fill ring size. * iv. fill queue empty * Do not populate the fill queue and then try to receive pkts. + * f. bpf_link resource persitence + * Configure sockets at indexes 0 and 1,run a traffic on queue ids 0, + * then remove xsk sockets from queue 0 on both veth interfaces and + * finally run a traffic on queues ids 1 * - * Total tests: 10 + * Total tests: 12 * * Flow: * ----- @@ -115,11 +119,12 @@ 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%s\n", configured_mode ? "DRV" : "SKB",\ + (ksft_test_result_pass("PASS: %s %s %s%s%s%s\n", configured_mode ? "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_STATS ? "Stats" : "")) + test_type == TEST_TYPE_STATS ? "Stats" : "",\ + test_type == TEST_TYPE_BPF_RES ? "BPF RES" : "")) static void init_sync_resources(void) { @@ -258,9 +263,8 @@ static void gen_eth_frame(struct xsk_umem_info *umem, u64 addr) memcpy(xsk_umem__get_data(umem->buffer, addr), pkt_data, PKT_SIZE); } -static void xsk_configure_umem(struct ifobject *data, void *buffer, u64 size) +static void xsk_configure_umem(struct ifobject *data, void *buffer, int idx) { - int ret; struct xsk_umem_config cfg = { .fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS, .comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS, @@ -268,17 +272,22 @@ static void xsk_configure_umem(struct ifobject *data, void *buffer, u64 size) .frame_headroom = frame_headroom, .flags = XSK_UMEM__DEFAULT_FLAGS }; + int size = num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE; + struct xsk_umem_info *umem; + int ret; - data->umem = calloc(1, sizeof(struct xsk_umem_info)); - if (!data->umem) + umem = calloc(1, sizeof(struct xsk_umem_info)); + if (!umem) exit_with_error(errno); - ret = xsk_umem__create(&data->umem->umem, buffer, size, - &data->umem->fq, &data->umem->cq, &cfg); + ret = xsk_umem__create(&umem->umem, buffer, size, + &umem->fq, &umem->cq, &cfg); if (ret) exit_with_error(ret); - data->umem->buffer = buffer; + umem->buffer = buffer; + + data->umem_arr[idx] = umem; } static void xsk_populate_fill_ring(struct xsk_umem_info *umem) @@ -294,18 +303,19 @@ static void xsk_populate_fill_ring(struct xsk_umem_info *umem) xsk_ring_prod__submit(&umem->fq, XSK_RING_PROD__DEFAULT_NUM_DESCS); } -static int xsk_configure_socket(struct ifobject *ifobject) +static int xsk_configure_socket(struct ifobject *ifobject, int idx) { struct xsk_socket_config cfg; + struct xsk_socket_info *xsk; struct xsk_ring_cons *rxr; struct xsk_ring_prod *txr; int ret; - ifobject->xsk = calloc(1, sizeof(struct xsk_socket_info)); - if (!ifobject->xsk) + xsk = calloc(1, sizeof(struct xsk_socket_info)); + if (!xsk) exit_with_error(errno); - ifobject->xsk->umem = ifobject->umem; + xsk->umem = ifobject->umem; cfg.rx_size = rxqsize; cfg.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS; cfg.libbpf_flags = 0; @@ -313,19 +323,20 @@ static int xsk_configure_socket(struct ifobject *ifobject) cfg.bind_flags = xdp_bind_flags; if (test_type != TEST_TYPE_BIDI) { - rxr = (ifobject->fv.vector == rx) ? &ifobject->xsk->rx : NULL; - txr = (ifobject->fv.vector == tx) ? &ifobject->xsk->tx : NULL; + rxr = (ifobject->fv.vector == rx) ? &xsk->rx : NULL; + txr = (ifobject->fv.vector == tx) ? &xsk->tx : NULL; } else { - rxr = &ifobject->xsk->rx; - txr = &ifobject->xsk->tx; + rxr = &xsk->rx; + txr = &xsk->tx; } - ret = xsk_socket__create(&ifobject->xsk->xsk, ifobject->ifname, - opt_queue, ifobject->umem->umem, rxr, txr, &cfg); - + ret = xsk_socket__create(&xsk->xsk, ifobject->ifname, idx, + ifobject->umem->umem, rxr, txr, &cfg); if (ret) return 1; + ifobject->xsk_arr[idx] = xsk; + return 0; } @@ -393,7 +404,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "i:q:DC:v", long_options, &option_index); + c = getopt_long(argc, argv, "i:DC:v", long_options, &option_index); if (c == -1) break; @@ -413,9 +424,6 @@ static void parse_command_line(int argc, char **argv) MAX_INTERFACES_NAMESPACE_CHARS); interface_index++; break; - case 'q': - opt_queue = atoi(optarg); - break; case 'D': debug_pkt_dump = 1; break; @@ -753,27 +761,33 @@ static void worker_pkt_validate(void) static void thread_common_ops(struct ifobject *ifobject, void *bufs) { + int umem_sz = num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE; int ctr = 0; int ret; pthread_attr_setstacksize(&attr, THREAD_STACK); - bufs = mmap(NULL, num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE, + ifobject->ns_fd = switch_namespace(ifobject->nsname); + + if (test_type == TEST_TYPE_BPF_RES) + umem_sz *= 2; + + bufs = mmap(NULL, umem_sz, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); if (bufs == MAP_FAILED) exit_with_error(errno); - ifobject->ns_fd = switch_namespace(ifobject->nsname); - - xsk_configure_umem(ifobject, bufs, num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE); - ret = xsk_configure_socket(ifobject); + xsk_configure_umem(ifobject, bufs, 0); + ifobject->umem = ifobject->umem_arr[0]; + ret = xsk_configure_socket(ifobject, 0); /* Retry Create Socket if it fails as xsk_socket__create() * is asynchronous */ while (ret && ctr < SOCK_RECONF_CTR) { - xsk_configure_umem(ifobject, bufs, num_frames * XSK_UMEM__DEFAULT_FRAME_SIZE); - ret = xsk_configure_socket(ifobject); + xsk_configure_umem(ifobject, bufs, 0); + ifobject->umem = ifobject->umem_arr[0]; + ret = xsk_configure_socket(ifobject, 0); usleep(USLEEP_MAX); ctr++; } @@ -781,10 +795,34 @@ static void thread_common_ops(struct ifobject *ifobject, void *bufs) if (ctr >= SOCK_RECONF_CTR) exit_with_error(ret); + ifobject->umem = ifobject->umem_arr[0]; + ifobject->xsk = ifobject->xsk_arr[0]; + + if (test_type == TEST_TYPE_BPF_RES) { + xsk_configure_umem(ifobject, (u8 *)bufs + (umem_sz / 2), 1); + ifobject->umem = ifobject->umem_arr[1]; + ret = xsk_configure_socket(ifobject, 1); + } + + ifobject->umem = ifobject->umem_arr[0]; + ifobject->xsk = ifobject->xsk_arr[0]; print_verbose("Interface [%s] vector [%s]\n", ifobject->ifname, ifobject->fv.vector == tx ? "Tx" : "Rx"); } +static bool testapp_is_test_two_stepped(void) +{ + return (test_type != TEST_TYPE_BIDI && test_type != TEST_TYPE_BPF_RES) || second_step; +} + +static void testapp_cleanup_xsk_res(struct ifobject *ifobj) +{ + if (testapp_is_test_two_stepped()) { + xsk_socket__delete(ifobj->xsk->xsk); + (void)xsk_umem__delete(ifobj->umem->umem); + } +} + static void *worker_testapp_validate_tx(void *arg) { struct udphdr *udp_hdr = @@ -795,7 +833,7 @@ static void *worker_testapp_validate_tx(void *arg) struct generic_data data; void *bufs = NULL; - if (!bidi_pass) + if (!second_step) thread_common_ops(ifobject, bufs); for (int i = 0; i < num_frames; i++) { @@ -815,10 +853,7 @@ static void *worker_testapp_validate_tx(void *arg) (opt_pkt_count - 1), ifobject->ifname); tx_only_all(ifobject); - if ((test_type != TEST_TYPE_BIDI) || bidi_pass) { - xsk_socket__delete(ifobject->xsk->xsk); - (void)xsk_umem__delete(ifobject->umem->umem); - } + testapp_cleanup_xsk_res(ifobject); pthread_exit(NULL); } @@ -828,7 +863,7 @@ static void *worker_testapp_validate_rx(void *arg) struct pollfd fds[MAX_SOCKS] = { }; void *bufs = NULL; - if (!bidi_pass) + if (!second_step) thread_common_ops(ifobject, bufs); if (stat_test_type != STAT_TEST_RX_FILL_EMPTY) @@ -865,10 +900,7 @@ static void *worker_testapp_validate_rx(void *arg) if (test_type == TEST_TYPE_TEARDOWN) print_verbose("Destroying socket\n"); - if ((test_type != TEST_TYPE_BIDI) || bidi_pass) { - xsk_socket__delete(ifobject->xsk->xsk); - (void)xsk_umem__delete(ifobject->umem->umem); - } + testapp_cleanup_xsk_res(ifobject); pthread_exit(NULL); } @@ -876,6 +908,7 @@ static void testapp_validate(void) { struct timespec max_wait = { 0, 0 }; bool bidi = test_type == TEST_TYPE_BIDI; + bool bpf = test_type == TEST_TYPE_BPF_RES; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, THREAD_STACK); @@ -909,7 +942,7 @@ static void testapp_validate(void) free(pkt_buf); } - if (!(test_type == TEST_TYPE_TEARDOWN) && !bidi && !(test_type == TEST_TYPE_STATS)) + if (!(test_type == TEST_TYPE_TEARDOWN) && !bidi && !bpf && !(test_type == TEST_TYPE_STATS)) print_ksft_result(); } @@ -951,11 +984,11 @@ static void testapp_bidi(void) sigvar = 0; print_verbose("Creating socket\n"); testapp_validate(); - if (!bidi_pass) { + if (!second_step) { print_verbose("Switching Tx/Rx vectors\n"); swap_vectors(ifdict[1], ifdict[0]); } - bidi_pass++; + second_step = true; } swap_vectors(ifdict[0], ifdict[1]); @@ -963,6 +996,36 @@ static void testapp_bidi(void) print_ksft_result(); } +static void swap_xsk_res(void) +{ + xsk_socket__delete(ifdict_tx->xsk->xsk); + xsk_umem__delete(ifdict_tx->umem->umem); + xsk_socket__delete(ifdict_rx->xsk->xsk); + xsk_umem__delete(ifdict_rx->umem->umem); + ifdict_tx->umem = ifdict_tx->umem_arr[1]; + ifdict_tx->xsk = ifdict_tx->xsk_arr[1]; + ifdict_rx->umem = ifdict_rx->umem_arr[1]; + ifdict_rx->xsk = ifdict_rx->xsk_arr[1]; +} + +static void testapp_bpf_res(void) +{ + int i; + + for (i = 0; i < MAX_BPF_ITER; i++) { + pkt_counter = 0; + prev_pkt = -1; + sigvar = 0; + print_verbose("Creating socket\n"); + testapp_validate(); + if (!second_step) + swap_xsk_res(); + second_step = true; + } + + print_ksft_result(); +} + static void testapp_stats(void) { for (int i = 0; i < STAT_TEST_TYPE_MAX; i++) { @@ -1026,13 +1089,15 @@ static void run_pkt_test(int mode, int type) /* reset defaults after potential previous test */ xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST; pkt_counter = 0; - bidi_pass = 0; + second_step = 0; prev_pkt = -1; sigvar = 0; stat_test_type = -1; rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS; frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM; + configured_mode = mode; + switch (mode) { case (TEST_MODE_SKB): xdp_flags |= XDP_FLAGS_SKB_MODE; @@ -1054,6 +1119,9 @@ static void run_pkt_test(int mode, int type) case TEST_TYPE_BIDI: testapp_bidi(); break; + case TEST_TYPE_BPF_RES: + testapp_bpf_res(); + break; default: testapp_validate(); break; @@ -1063,6 +1131,7 @@ static void run_pkt_test(int mode, int type) int main(int argc, char **argv) { struct rlimit _rlim = { RLIM_INFINITY, RLIM_INFINITY }; + bool failure = false; int i, j; if (setrlimit(RLIMIT_MEMLOCK, &_rlim)) @@ -1074,6 +1143,16 @@ int main(int argc, char **argv) exit_with_error(errno); ifdict[i]->ifdict_index = i; + ifdict[i]->xsk_arr = calloc(2, sizeof(struct xsk_socket_info *)); + if (!ifdict[i]->xsk_arr) { + failure = true; + goto cleanup; + } + ifdict[i]->umem_arr = calloc(2, sizeof(struct xsk_umem_info *)); + if (!ifdict[i]->umem_arr) { + failure = true; + goto cleanup; + } } setlocale(LC_ALL, ""); @@ -1094,13 +1173,19 @@ int main(int argc, char **argv) run_pkt_test(i, j); } + destroy_sync_resources(); + +cleanup: for (int i = 0; i < MAX_INTERFACES; i++) { if (ifdict[i]->ns_fd != -1) close(ifdict[i]->ns_fd); + free(ifdict[i]->xsk_arr); + free(ifdict[i]->umem_arr); free(ifdict[i]); } - destroy_sync_resources(); + if (failure) + exit_with_error(errno); ksft_exit_pass(); diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 44e2663d069d..302cb66f8c57 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -23,6 +23,7 @@ #define MAX_SOCKS 1 #define MAX_TEARDOWN_ITER 10 #define MAX_BIDI_ITER 2 +#define MAX_BPF_ITER 2 #define PKT_HDR_SIZE (sizeof(struct ethhdr) + sizeof(struct iphdr) + \ sizeof(struct udphdr)) #define MIN_PKT_SIZE 64 @@ -63,6 +64,7 @@ enum TEST_TYPES { TEST_TYPE_TEARDOWN, TEST_TYPE_BIDI, TEST_TYPE_STATS, + TEST_TYPE_BPF_RES, TEST_TYPE_MAX }; @@ -77,10 +79,9 @@ enum STAT_TEST_TYPES { static int configured_mode = TEST_MODE_UNCONFIGURED; static u8 debug_pkt_dump; static u32 num_frames; -static u8 bidi_pass; +static bool second_step; static int test_type; -static int opt_queue; static int opt_pkt_count; static u8 opt_verbose; @@ -128,6 +129,8 @@ struct ifobject { char ifname[MAX_INTERFACE_NAME_CHARS]; char nsname[MAX_INTERFACES_NAMESPACE_CHARS]; struct xsk_socket_info *xsk; + struct xsk_socket_info **xsk_arr; + struct xsk_umem_info **umem_arr; struct xsk_umem_info *umem; void *(*func_ptr)(void *); struct flow_vector fv; From patchwork Thu Mar 11 15:29:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132011 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,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 49055C4321A for ; 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d="scan'208";a="589253645" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:46 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com Subject: [PATCH v2 bpf-next 15/17] selftests: xsk: remove thread attribute Date: Thu, 11 Mar 2021 16:29:08 +0100 Message-Id: <20210311152910.56760-16-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.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 There is really no reason to have a non-default thread stack size. Remove that. Signed-off-by: Björn Töpel --- tools/testing/selftests/bpf/xdpxceiver.c | 9 ++------- tools/testing/selftests/bpf/xdpxceiver.h | 2 -- 2 files changed, 2 insertions(+), 9 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index dc775ee139c5..35826d73266f 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -765,8 +765,6 @@ static void thread_common_ops(struct ifobject *ifobject, void *bufs) int ctr = 0; int ret; - pthread_attr_setstacksize(&attr, THREAD_STACK); - ifobject->ns_fd = switch_namespace(ifobject->nsname); if (test_type == TEST_TYPE_BPF_RES) @@ -910,13 +908,10 @@ static void testapp_validate(void) bool bidi = test_type == TEST_TYPE_BIDI; bool bpf = test_type == TEST_TYPE_BPF_RES; - pthread_attr_init(&attr); - pthread_attr_setstacksize(&attr, THREAD_STACK); - pthread_mutex_lock(&sync_mutex); /*Spawn RX thread */ - pthread_create(&t0, &attr, ifdict_rx->func_ptr, ifdict_rx); + pthread_create(&t0, NULL, ifdict_rx->func_ptr, ifdict_rx); if (clock_gettime(CLOCK_REALTIME, &max_wait)) exit_with_error(errno); @@ -928,7 +923,7 @@ static void testapp_validate(void) pthread_mutex_unlock(&sync_mutex); /*Spawn TX thread */ - pthread_create(&t1, &attr, ifdict_tx->func_ptr, ifdict_tx); + pthread_create(&t1, NULL, ifdict_tx->func_ptr, ifdict_tx); pthread_join(t1, NULL); pthread_join(t0, NULL); diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 302cb66f8c57..09b85a2925a5 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -37,7 +37,6 @@ #define TMOUT_SEC (3) #define EOT (-1) #define USLEEP_MAX 200000 -#define THREAD_STACK 60000000 #define SOCK_RECONF_CTR 10 #define BATCH_SIZE 64 #define POLL_TMOUT 1000 @@ -152,7 +151,6 @@ static struct ifobject *ifdict_tx; pthread_mutex_t sync_mutex; pthread_cond_t signal_rx_condition; pthread_t t0, t1; -pthread_attr_t attr; TAILQ_HEAD(head_s, pkt) head = TAILQ_HEAD_INITIALIZER(head); struct head_s *head_p; From patchwork Thu Mar 11 15:29:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132013 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 31C2CC433DB for ; Thu, 11 Mar 2021 15:42:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 09DCD64FB8 for ; Thu, 11 Mar 2021 15:42:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234161AbhCKPmA (ORCPT ); Thu, 11 Mar 2021 10:42:00 -0500 Received: from mga14.intel.com ([192.55.52.115]:42370 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234361AbhCKPlw (ORCPT ); Thu, 11 Mar 2021 10:41:52 -0500 IronPort-SDR: 5g19O9QzBeGkB2hlJBQggwhVJtTGJ1vn5s+itHin/GZ9VDAz7ef6rnSv2okH+L+JGmfKNtarXS as8u95DFT7xg== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="188050753" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="188050753" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 07:41:51 -0800 IronPort-SDR: ghWicv6rbOj8sla8IamjaRrhJKbYzJHeNJ1UbQo6riiprGz+iB39dLvnSyGMBYYlt93n8MLl1U sx2UOMoTpS2g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="589253661" Received: from ranger.igk.intel.com ([10.102.21.164]) by orsmga005.jf.intel.com with ESMTP; 11 Mar 2021 07:41:49 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com Subject: [PATCH v2 bpf-next 16/17] selftest: xsk: Remove mutex and condition variable Date: Thu, 11 Mar 2021 16:29:09 +0100 Message-Id: <20210311152910.56760-17-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.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 The usage of the condition variable is broken, and overkill. Replace with a pthread barrier. Signed-off-by: Björn Töpel --- tools/testing/selftests/bpf/xdpxceiver.c | 33 ++++-------------------- tools/testing/selftests/bpf/xdpxceiver.h | 3 +-- 2 files changed, 6 insertions(+), 30 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 35826d73266f..0a2a383e8c97 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -126,18 +126,6 @@ static void __exit_with_error(int error, const char *file, const char *func, int test_type == TEST_TYPE_STATS ? "Stats" : "",\ test_type == TEST_TYPE_BPF_RES ? "BPF RES" : "")) -static void init_sync_resources(void) -{ - pthread_mutex_init(&sync_mutex, NULL); - pthread_cond_init(&signal_rx_condition, NULL); -} - -static void destroy_sync_resources(void) -{ - pthread_mutex_destroy(&sync_mutex); - pthread_cond_destroy(&signal_rx_condition); -} - static void *memset32_htonl(void *dest, u32 val, u32 size) { u32 *ptr = (u32 *)dest; @@ -877,9 +865,7 @@ static void *worker_testapp_validate_rx(void *arg) fds[0].fd = xsk_socket__fd(ifobject->xsk->xsk); fds[0].events = POLLIN; - pthread_mutex_lock(&sync_mutex); - pthread_cond_signal(&signal_rx_condition); - pthread_mutex_unlock(&sync_mutex); + pthread_barrier_wait(&barr); while (1) { if (test_type != TEST_TYPE_STATS) { @@ -904,24 +890,19 @@ static void *worker_testapp_validate_rx(void *arg) static void testapp_validate(void) { - struct timespec max_wait = { 0, 0 }; bool bidi = test_type == TEST_TYPE_BIDI; bool bpf = test_type == TEST_TYPE_BPF_RES; - pthread_mutex_lock(&sync_mutex); + if (pthread_barrier_init(&barr, NULL, 2)) + exit_with_error(errno); /*Spawn RX thread */ pthread_create(&t0, NULL, ifdict_rx->func_ptr, ifdict_rx); - if (clock_gettime(CLOCK_REALTIME, &max_wait)) - exit_with_error(errno); - max_wait.tv_sec += TMOUT_SEC; - - if (pthread_cond_timedwait(&signal_rx_condition, &sync_mutex, &max_wait) == ETIMEDOUT) + pthread_barrier_wait(&barr); + if (pthread_barrier_destroy(&barr)) exit_with_error(errno); - pthread_mutex_unlock(&sync_mutex); - /*Spawn TX thread */ pthread_create(&t1, NULL, ifdict_tx->func_ptr, ifdict_tx); @@ -1161,15 +1142,11 @@ int main(int argc, char **argv) ksft_set_plan(TEST_MODE_MAX * TEST_TYPE_MAX); - init_sync_resources(); - for (i = 0; i < TEST_MODE_MAX; i++) { for (j = 0; j < TEST_TYPE_MAX; j++) run_pkt_test(i, j); } - destroy_sync_resources(); - cleanup: for (int i = 0; i < MAX_INTERFACES; i++) { if (ifdict[i]->ns_fd != -1) diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 09b85a2925a5..20943228b5e5 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -148,8 +148,7 @@ static struct ifobject *ifdict_rx; static struct ifobject *ifdict_tx; /*threads*/ -pthread_mutex_t sync_mutex; -pthread_cond_t signal_rx_condition; +pthread_barrier_t barr; pthread_t t0, t1; TAILQ_HEAD(head_s, pkt) head = TAILQ_HEAD_INITIALIZER(head); From patchwork Thu Mar 11 15:29:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maciej Fijalkowski X-Patchwork-Id: 12132017 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,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 9AE32C433E0 for ; Thu, 11 Mar 2021 15:42:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 43B1864FB8 for ; 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11 Mar 2021 07:41:51 -0800 From: Maciej Fijalkowski To: bpf@vger.kernel.org, netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org Cc: bjorn.topel@intel.com, magnus.karlsson@intel.com, ciara.loftus@intel.com, john.fastabend@gmail.com, toke@redhat.com Subject: [PATCH v2 bpf-next 17/17] selftests: xsk: Remove unused defines Date: Thu, 11 Mar 2021 16:29:10 +0100 Message-Id: <20210311152910.56760-18-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210311152910.56760-1-maciej.fijalkowski@intel.com> References: <20210311152910.56760-1-maciej.fijalkowski@intel.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 Remove two unused defines. Signed-off-by: Björn Töpel --- tools/testing/selftests/bpf/xdpxceiver.c | 5 ++--- tools/testing/selftests/bpf/xdpxceiver.h | 2 -- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 0a2a383e8c97..931aa9ffa522 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -456,7 +456,7 @@ static void complete_tx_only(struct xsk_socket_info *xsk, int batch_size) if (!xsk->outstanding_tx) return; - if (!NEED_WAKEUP || xsk_ring_prod__needs_wakeup(&xsk->tx)) + if (xsk_ring_prod__needs_wakeup(&xsk->tx)) kick_tx(xsk); rcvd = xsk_ring_cons__peek(&xsk->umem->cq, batch_size, &idx); @@ -544,8 +544,7 @@ static void tx_only(struct xsk_socket_info *xsk, u32 *frameptr, int batch_size) xsk_ring_prod__submit(&xsk->tx, batch_size); if (!tx_invalid_test) { xsk->outstanding_tx += batch_size; - } else { - if (!NEED_WAKEUP || xsk_ring_prod__needs_wakeup(&xsk->tx)) + } else if (xsk_ring_prod__needs_wakeup(&xsk->tx)) { kick_tx(xsk); } *frameptr += batch_size; diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 20943228b5e5..b592012115cc 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -34,13 +34,11 @@ #define IP_PKT_TOS 0x9 #define UDP_PKT_SIZE (IP_PKT_SIZE - sizeof(struct iphdr)) #define UDP_PKT_DATA_SIZE (UDP_PKT_SIZE - sizeof(struct udphdr)) -#define TMOUT_SEC (3) #define EOT (-1) #define USLEEP_MAX 200000 #define SOCK_RECONF_CTR 10 #define BATCH_SIZE 64 #define POLL_TMOUT 1000 -#define NEED_WAKEUP true #define DEFAULT_PKT_CNT 10000 #define RX_FULL_RXQSIZE 32