From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id AC75D2C57; Fri, 12 Jan 2018 09:26:20 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Jan 2018 00:26:20 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,348,1511856000"; d="scan'208";a="193294824" Received: from dpdk6.bj.intel.com ([172.16.182.87]) by orsmga005.jf.intel.com with ESMTP; 12 Jan 2018 00:26:18 -0800 From: Wei Dai To: yuan.peng@intel.com, konstantin.ananyev@intel.com, wenzhuo.lu@intel.com, beilei.xing@intel.com Cc: dev@dpdk.org, Wei Dai , stable@dpdk.org Date: Fri, 12 Jan 2018 16:10:02 +0800 Message-Id: <1515744603-60457-2-git-send-email-wei.dai@intel.com> X-Mailer: git-send-email 2.7.5 In-Reply-To: <1515744603-60457-1-git-send-email-wei.dai@intel.com> References: <1515646700-56892-1-git-send-email-wei.dai@intel.com> <1515744603-60457-1-git-send-email-wei.dai@intel.com> Subject: [dpdk-stable] [PATCH v5 1/2] app/testpmd: fix invalid rxq number setting X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Jan 2018 08:26:21 -0000 If an invalid number of RX queues is configured from testpmd run-time command like "port config all rxq number" or from --rxq in the command to start testpmd, the global variable nb_rxq is updated by this invalid value without this patch. It may cause testpmd crash. This patch refuses invalid rxq setting and keeps its last correct value. Fixes: ce8d561418d4 ("app/testpmd: add port configuration settings") Cc: stable@dpdk.org Signed-off-by: Wei Dai Acked-by: Konstantin Ananyev --- app/test-pmd/cmdline.c | 2 ++ app/test-pmd/parameters.c | 7 ++++--- app/test-pmd/testpmd.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ app/test-pmd/testpmd.h | 3 +++ 4 files changed, 55 insertions(+), 3 deletions(-) diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c index 5b2e2ef..f0623b1 100644 --- a/app/test-pmd/cmdline.c +++ b/app/test-pmd/cmdline.c @@ -1518,6 +1518,8 @@ cmd_config_rx_tx_parsed(void *parsed_result, printf("Warning: Either rx or tx queues should be non zero\n"); return; } + if (check_nb_rxq(res->value) != 0) + return; nb_rxq = res->value; } else if (!strcmp(res->name, "txq")) { diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c index 304b98d..c46e734 100644 --- a/app/test-pmd/parameters.c +++ b/app/test-pmd/parameters.c @@ -536,6 +536,7 @@ launch_args_parse(int argc, char** argv) int n, opt; char **argvopt; int opt_idx; + portid_t pid; enum { TX, RX }; static struct option lgopts[] = { @@ -922,12 +923,12 @@ launch_args_parse(int argc, char** argv) rss_hf = ETH_RSS_UDP; if (!strcmp(lgopts[opt_idx].name, "rxq")) { n = atoi(optarg); - if (n >= 0 && n <= (int) MAX_QUEUE_ID) + if (n >= 0 && check_nb_rxq((queueid_t)n) == 0) nb_rxq = (queueid_t) n; else rte_exit(EXIT_FAILURE, "rxq %d invalid - must be" - " >= 0 && <= %d\n", n, - (int) MAX_QUEUE_ID); + " >= 0 && <= %u\n", n, + get_allowed_max_nb_rxq(&pid)); } if (!strcmp(lgopts[opt_idx].name, "txq")) { n = atoi(optarg); diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index 9414d0e..4e8667d 100644 --- a/app/test-pmd/testpmd.c +++ b/app/test-pmd/testpmd.c @@ -540,6 +540,52 @@ check_socket_id(const unsigned int socket_id) return 0; } +/* + * Get the allowed maximum number of RX queues. + * *pid return the port id which has minimal value of + * max_rx_queues in all ports. + */ +queueid_t +get_allowed_max_nb_rxq(portid_t *pid) +{ + queueid_t allowed_max_rxq = MAX_QUEUE_ID; + portid_t pi; + struct rte_eth_dev_info dev_info; + + RTE_ETH_FOREACH_DEV(pi) { + rte_eth_dev_info_get(pi, &dev_info); + if (dev_info.max_rx_queues < allowed_max_rxq) { + allowed_max_rxq = dev_info.max_rx_queues; + *pid = pi; + } + } + return allowed_max_rxq; +} + +/* + * Check input rxq is valid or not. + * If input rxq is not greater than any of maximum number + * of RX queues of all ports, it is valid. + * if valid, return 0, else return -1 + */ +int +check_nb_rxq(queueid_t rxq) +{ + queueid_t allowed_max_rxq; + portid_t pid = 0; + + allowed_max_rxq = get_allowed_max_nb_rxq(&pid); + if (rxq > allowed_max_rxq) { + printf("Fail: input rxq (%u) can't be greater " + "than max_rx_queues (%u) of port %u\n", + rxq, + allowed_max_rxq, + pid); + return -1; + } + return 0; +} + static void init_config(void) { diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h index 2a266fd..e815509 100644 --- a/app/test-pmd/testpmd.h +++ b/app/test-pmd/testpmd.h @@ -700,6 +700,9 @@ enum print_warning { int port_id_is_invalid(portid_t port_id, enum print_warning warning); int new_socket_id(unsigned int socket_id); +queueid_t get_allowed_max_nb_rxq(portid_t *pid); +int check_nb_rxq(queueid_t rxq); + /* * Work-around of a compilation error with ICC on invocations of the * rte_be_to_cpu_16() function. -- 2.7.5