From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 65CB51B752; Wed, 19 Dec 2018 08:39:50 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Dec 2018 23:39:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,371,1539673200"; d="scan'208";a="131186843" Received: from dpdk51.sh.intel.com ([10.67.110.190]) by fmsmga001.fm.intel.com with ESMTP; 18 Dec 2018 23:39:44 -0800 From: Qi Zhang To: anatoly.burakov@intel.com Cc: thomas@monjalon.net, dev@dpdk.org, ferruh.yigit@intel.com, Qi Zhang , stable@dpdk.org Date: Wed, 19 Dec 2018 15:41:07 +0800 Message-Id: <20181219074107.10084-1-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 Subject: [dpdk-dev] [PATCH] eal: close MP socket during cleanup 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: , X-List-Received-Date: Wed, 19 Dec 2018 07:39:52 -0000 When secondary process quit, the mp_socket* file still exist, that cause rte_mp_request_sync fail when try to send message on a floating socket. The patch fix the issue by introduce a function rte_mp_channel_fini. This function will be called by rte_eal_cleanup and it will close the mp socket and delete the mp_socket* file. Fixes: bacaa2754017 ("eal: add channel for multi-process communication") Cc: stable@dpdk.org Signed-off-by: Qi Zhang --- lib/librte_eal/common/eal_common_proc.c | 22 +++++++++++++++++++++- lib/librte_eal/common/eal_private.h | 6 ++++++ lib/librte_eal/linuxapp/eal/eal.c | 1 + 3 files changed, 28 insertions(+), 1 deletion(-) diff --git a/lib/librte_eal/common/eal_common_proc.c b/lib/librte_eal/common/eal_common_proc.c index 6b876590a..ff19bea15 100644 --- a/lib/librte_eal/common/eal_common_proc.c +++ b/lib/librte_eal/common/eal_common_proc.c @@ -37,6 +37,7 @@ static int mp_fd = -1; static char mp_filter[PATH_MAX]; /* Filter for secondary process sockets */ static char mp_dir_path[PATH_MAX]; /* The directory path for all mp sockets */ static pthread_mutex_t mp_mutex_action = PTHREAD_MUTEX_INITIALIZER; +static char peer_name[PATH_MAX]; struct action_entry { TAILQ_ENTRY(action_entry) next; @@ -511,9 +512,9 @@ async_reply_handle(void *arg) static int open_socket_fd(void) { - char peer_name[PATH_MAX] = {0}; struct sockaddr_un un; + peer_name[0] = '\0'; if (rte_eal_process_type() == RTE_PROC_SECONDARY) snprintf(peer_name, sizeof(peer_name), "%d_%"PRIx64, getpid(), rte_rdtsc()); @@ -542,6 +543,19 @@ open_socket_fd(void) return mp_fd; } +static void +close_socket_fd(void) +{ + char path[PATH_MAX]; + + if (mp_fd < 0) + return; + + close(mp_fd); + create_socket_path(peer_name, path, sizeof(path)); + unlink(path); +} + int rte_mp_channel_init(void) { @@ -602,6 +616,12 @@ rte_mp_channel_init(void) return 0; } +void +rte_mp_channel_fini(void) +{ + close_socket_fd(); +} + /** * Return -1, as fail to send message and it's caused by the local side. * Return 0, as fail to send message and it's caused by the remote side. diff --git a/lib/librte_eal/common/eal_private.h b/lib/librte_eal/common/eal_private.h index 442c6dc48..10b6857f6 100644 --- a/lib/librte_eal/common/eal_private.h +++ b/lib/librte_eal/common/eal_private.h @@ -259,6 +259,12 @@ struct rte_bus *rte_bus_find_by_device_name(const char *str); int rte_mp_channel_init(void); /** + * Primary/secondary communication cleanup. + */ + +void rte_mp_channel_fini(void); + +/** * @internal * Parse a device string and store its information in an * rte_devargs structure. diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c index d252c8591..52df05e8d 100644 --- a/lib/librte_eal/linuxapp/eal/eal.c +++ b/lib/librte_eal/linuxapp/eal/eal.c @@ -1229,6 +1229,7 @@ rte_eal_cleanup(void) if (rte_eal_process_type() == RTE_PROC_PRIMARY) rte_memseg_walk(mark_freeable, NULL); rte_service_finalize(); + rte_mp_channel_fini(); return 0; } -- 2.13.6