From patchwork Tue Aug 3 17:10:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishen Maloor X-Patchwork-Id: 491344 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=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 0B515C4320A for ; Tue, 3 Aug 2021 17:10:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D6CC161029 for ; Tue, 3 Aug 2021 17:10:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237798AbhHCRKq (ORCPT ); Tue, 3 Aug 2021 13:10:46 -0400 Received: from mga14.intel.com ([192.55.52.115]:16903 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237691AbhHCRKm (ORCPT ); Tue, 3 Aug 2021 13:10:42 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10065"; a="213466142" X-IronPort-AV: E=Sophos;i="5.84,292,1620716400"; d="scan'208";a="213466142" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Aug 2021 10:10:21 -0700 X-IronPort-AV: E=Sophos;i="5.84,292,1620716400"; d="scan'208";a="521327149" Received: from shyamasr-mobl.amr.corp.intel.com ([10.209.65.83]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Aug 2021 10:10:19 -0700 From: Kishen Maloor To: bpf@vger.kernel.org, netdev@vger.kernel.org, hawk@kernel.org, magnus.karlsson@intel.com Cc: Jithu Joseph Subject: [RFC bpf-next 4/5] samples/bpf/xdpsock_user.c: Make get_nsecs() generic Date: Tue, 3 Aug 2021 13:10:05 -0400 Message-Id: <20210803171006.13915-5-kishen.maloor@intel.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20210803171006.13915-1-kishen.maloor@intel.com> References: <20210803171006.13915-1-kishen.maloor@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jithu Joseph The helper function get_nsecs() assumes clock to be CLOCK_MONOTONIC. TSN features like Launchtime uses CLOCK_TAI. Subsequent patch extends this sample to show how Launchtime APIs maybe used in XDP context. In prepration for this, extend the function to add CLOCKID parameter. Signed-off-by: Jithu Joseph --- samples/bpf/xdpsock_user.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 33d0bdebbed8..3fd2f6a0d1eb 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -159,11 +159,11 @@ static int num_socks; struct xsk_socket_info *xsks[MAX_SOCKS]; int sock; -static unsigned long get_nsecs(void) +static unsigned long get_nsecs(int clockid) { struct timespec ts; - clock_gettime(CLOCK_MONOTONIC, &ts); + clock_gettime(clockid, &ts); return ts.tv_sec * 1000000000UL + ts.tv_nsec; } @@ -354,7 +354,7 @@ static void dump_driver_stats(long dt) static void dump_stats(void) { - unsigned long now = get_nsecs(); + unsigned long now = get_nsecs(CLOCK_MONOTONIC); long dt = now - prev_time; int i; @@ -443,7 +443,7 @@ static void dump_stats(void) static bool is_benchmark_done(void) { if (opt_duration > 0) { - unsigned long dt = (get_nsecs() - start_time); + unsigned long dt = (get_nsecs(CLOCK_MONOTONIC) - start_time); if (dt >= opt_duration) benchmark_done = true; @@ -1683,7 +1683,7 @@ int main(int argc, char **argv) exit_with_error(ret); } - prev_time = get_nsecs(); + prev_time = get_nsecs(CLOCK_MONOTONIC); start_time = prev_time; if (opt_bench == BENCH_RXDROP)