From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 4E699A051F; Wed, 10 Jun 2020 16:46:48 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 7AB131C05C; Wed, 10 Jun 2020 16:46:06 +0200 (CEST) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) by dpdk.org (Postfix) with ESMTP id E19341C027 for ; Wed, 10 Jun 2020 16:46:03 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1591800363; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=knJUZyC/ntiqw8GDcULqvzgooU7U/Izm6C6BNwpdyoM=; b=GIt9q6cHjhP715wfkvVuaK1OLC2So49FvEMpoia+Wx+ngVkbjDwgjD51Y7V+7q8R7vXDa2 87u5qd2ppcnKDqcsHzlMgjnQ65O0J7Bvrf5iN6lTfMiJwRlNDYF+A0Wc6nQzacDSgE5HnY nIN1udkAJvZwbotKjkQsOm2G6diz5Pw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-353-XfCMvN9WOcKrRypqSEPkWg-1; Wed, 10 Jun 2020 10:46:01 -0400 X-MC-Unique: XfCMvN9WOcKrRypqSEPkWg-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 08B98107ACF4; Wed, 10 Jun 2020 14:45:58 +0000 (UTC) Received: from dmarchan.remote.csb (unknown [10.40.192.116]) by smtp.corp.redhat.com (Postfix) with ESMTP id C3A5560BF3; Wed, 10 Jun 2020 14:45:56 +0000 (UTC) From: David Marchand To: dev@dpdk.org Cc: Bruce Richardson , Ray Kinsella , Neil Horman Date: Wed, 10 Jun 2020 16:45:05 +0200 Message-Id: <20200610144506.30505-7-david.marchand@redhat.com> In-Reply-To: <20200610144506.30505-1-david.marchand@redhat.com> References: <20200610144506.30505-1-david.marchand@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH 6/7] eal: dump lcores X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Archived-At: List-Archive: Add a little helper to dump all lcores. Signed-off-by: David Marchand --- lib/librte_eal/common/eal_common_lcore.c | 32 +++++++++++++++++++++++ lib/librte_eal/common/eal_common_thread.c | 16 ++++++++---- lib/librte_eal/common/eal_thread.h | 13 +++++++-- lib/librte_eal/freebsd/eal.c | 2 +- lib/librte_eal/freebsd/eal_thread.c | 2 +- lib/librte_eal/include/rte_lcore.h | 10 +++++++ lib/librte_eal/linux/eal.c | 2 +- lib/librte_eal/linux/eal_thread.c | 2 +- lib/librte_eal/rte_eal_version.map | 1 + 9 files changed, 69 insertions(+), 11 deletions(-) diff --git a/lib/librte_eal/common/eal_common_lcore.c b/lib/librte_eal/common/eal_common_lcore.c index 35d6c1295e..6aca1b2fee 100644 --- a/lib/librte_eal/common/eal_common_lcore.c +++ b/lib/librte_eal/common/eal_common_lcore.c @@ -245,3 +245,35 @@ eal_lcore_external_release(unsigned int lcore_id) } rte_spinlock_unlock(&external_lcore_lock); } + +void +rte_lcore_dump(FILE *f) +{ + char cpuset[RTE_CPU_AFFINITY_STR_LEN]; + unsigned int lcore_id; + const char *role; + int ret; + + rte_spinlock_lock(&external_lcore_lock); + for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { + switch (rte_eal_lcore_role(lcore_id)) { + case ROLE_RTE: + role = "RTE"; + break; + case ROLE_SERVICE: + role = "SERVICE"; + break; + case ROLE_EXTERNAL: + role = "EXTERNAL"; + break; + default: + continue; + } + + ret = eal_thread_dump_affinity(&lcore_config[lcore_id].cpuset, + cpuset, sizeof(cpuset)); + fprintf(f, "lcore %u, role %s, cpuset %s%s\n", lcore_id, role, + cpuset, ret == 0 ? "" : "..."); + } + rte_spinlock_unlock(&external_lcore_lock); +} diff --git a/lib/librte_eal/common/eal_common_thread.c b/lib/librte_eal/common/eal_common_thread.c index d57a6ec797..a81b192ff3 100644 --- a/lib/librte_eal/common/eal_common_thread.c +++ b/lib/librte_eal/common/eal_common_thread.c @@ -118,17 +118,14 @@ rte_thread_get_affinity(rte_cpuset_t *cpusetp) } int -eal_thread_dump_affinity(char *str, unsigned size) +eal_thread_dump_affinity(rte_cpuset_t *cpuset, char *str, unsigned int size) { - rte_cpuset_t cpuset; unsigned cpu; int ret; unsigned int out = 0; - rte_thread_get_affinity(&cpuset); - for (cpu = 0; cpu < CPU_SETSIZE; cpu++) { - if (!CPU_ISSET(cpu, &cpuset)) + if (!CPU_ISSET(cpu, cpuset)) continue; ret = snprintf(str + out, @@ -151,6 +148,15 @@ eal_thread_dump_affinity(char *str, unsigned size) return ret; } +int +eal_thread_dump_current_affinity(char *str, unsigned int size) +{ + rte_cpuset_t cpuset; + + rte_thread_get_affinity(&cpuset); + return eal_thread_dump_affinity(&cpuset, str, size); +} + void rte_thread_init(unsigned int lcore_id, rte_cpuset_t *cpuset) { diff --git a/lib/librte_eal/common/eal_thread.h b/lib/librte_eal/common/eal_thread.h index 4ecd8fd53a..13ec252e01 100644 --- a/lib/librte_eal/common/eal_thread.h +++ b/lib/librte_eal/common/eal_thread.h @@ -47,13 +47,15 @@ unsigned eal_cpu_socket_id(unsigned cpu_id); #define RTE_CPU_AFFINITY_STR_LEN 256 /** - * Dump the current pthread cpuset. + * Dump the cpuset as a human readable string. * This function is private to EAL. * * Note: * If the dump size is greater than the size of given buffer, * the string will be truncated and with '\0' at the end. * + * @param cpuset + * The CPU affinity object to dump. * @param str * The string buffer the cpuset will dump to. * @param size @@ -62,6 +64,13 @@ unsigned eal_cpu_socket_id(unsigned cpu_id); * 0 for success, -1 if truncation happens. */ int -eal_thread_dump_affinity(char *str, unsigned size); +eal_thread_dump_affinity(rte_cpuset_t *cpuset, char *str, unsigned int size); + +/** + * Dump the current thread cpuset. + * This is a wrapper on eal_thread_dump_affinity(). + */ +int +eal_thread_dump_current_affinity(char *str, unsigned int size); #endif /* EAL_THREAD_H */ diff --git a/lib/librte_eal/freebsd/eal.c b/lib/librte_eal/freebsd/eal.c index b5ea11df16..69a6f7d8c4 100644 --- a/lib/librte_eal/freebsd/eal.c +++ b/lib/librte_eal/freebsd/eal.c @@ -886,7 +886,7 @@ rte_eal_init(int argc, char **argv) rte_thread_init(rte_config.master_lcore, &lcore_config[rte_config.master_lcore].cpuset); - ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset)); + ret = eal_thread_dump_current_affinity(cpuset, sizeof(cpuset)); RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%p;cpuset=[%s%s])\n", rte_config.master_lcore, thread_id, cpuset, diff --git a/lib/librte_eal/freebsd/eal_thread.c b/lib/librte_eal/freebsd/eal_thread.c index c1fb8eb2d8..b1a3619f51 100644 --- a/lib/librte_eal/freebsd/eal_thread.c +++ b/lib/librte_eal/freebsd/eal_thread.c @@ -92,7 +92,7 @@ eal_thread_loop(__rte_unused void *arg) rte_thread_init(lcore_id, &lcore_config[lcore_id].cpuset); - ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset)); + ret = eal_thread_dump_current_affinity(cpuset, sizeof(cpuset)); RTE_LOG(DEBUG, EAL, "lcore %u is ready (tid=%p;cpuset=[%s%s])\n", lcore_id, thread_id, cpuset, ret == 0 ? "" : "..."); diff --git a/lib/librte_eal/include/rte_lcore.h b/lib/librte_eal/include/rte_lcore.h index d59c4edc67..9cf34efef4 100644 --- a/lib/librte_eal/include/rte_lcore.h +++ b/lib/librte_eal/include/rte_lcore.h @@ -228,6 +228,16 @@ unsigned int rte_get_next_lcore(unsigned int i, int skip_master, int wrap); i