From patchwork Wed Jun 15 15:25:29 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Remy Horton X-Patchwork-Id: 13834 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id C5BFEC11A; Wed, 15 Jun 2016 17:25:41 +0200 (CEST) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 12441BDAE for ; Wed, 15 Jun 2016 17:25:38 +0200 (CEST) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga103.jf.intel.com with ESMTP; 15 Jun 2016 08:25:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,476,1459839600"; d="scan'208";a="828641128" Received: from rhorton-mobl.ger.corp.intel.com (HELO VM.ir.intel.com) ([163.33.228.155]) by orsmga003.jf.intel.com with ESMTP; 15 Jun 2016 08:25:37 -0700 From: Remy Horton To: dev@dpdk.org, Thomas Monjalon Date: Wed, 15 Jun 2016 16:25:29 +0100 Message-Id: <1466004333-18469-4-git-send-email-remy.horton@intel.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1466004333-18469-1-git-send-email-remy.horton@intel.com> References: <1466004333-18469-1-git-send-email-remy.horton@intel.com> Subject: [dpdk-dev] [PATCH v5 3/7] drivers/net/e1000: change xstats to use integer ids X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The current extended ethernet statistics fetching involve doing several string operations, which causes performance issues if there are lots of statistics and/or network interfaces. This patch changes the e1000 driver to use the new API that seperates name string and value queries. Signed-off-by: Remy Horton --- drivers/net/e1000/igb_ethdev.c | 52 ++++++++++++++++++++++++++++++++++++++---- 1 file changed, 48 insertions(+), 4 deletions(-) diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c index f0921ee..dffa04f 100644 --- a/drivers/net/e1000/igb_ethdev.c +++ b/drivers/net/e1000/igb_ethdev.c @@ -100,6 +100,9 @@ static void eth_igb_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats); static int eth_igb_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, unsigned n); +static int eth_igb_xstats_get_names(struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, + unsigned limit); static void eth_igb_stats_reset(struct rte_eth_dev *dev); static void eth_igb_xstats_reset(struct rte_eth_dev *dev); static void eth_igb_infos_get(struct rte_eth_dev *dev, @@ -165,6 +168,9 @@ static void eth_igbvf_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats); static int eth_igbvf_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, unsigned n); +static int eth_igbvf_xstats_get_names(struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, + unsigned limit); static void eth_igbvf_stats_reset(struct rte_eth_dev *dev); static int igbvf_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on); @@ -324,6 +330,7 @@ static const struct eth_dev_ops eth_igb_ops = { .link_update = eth_igb_link_update, .stats_get = eth_igb_stats_get, .xstats_get = eth_igb_xstats_get, + .xstats_get_names = eth_igb_xstats_get_names, .stats_reset = eth_igb_stats_reset, .xstats_reset = eth_igb_xstats_reset, .dev_infos_get = eth_igb_infos_get, @@ -385,6 +392,7 @@ static const struct eth_dev_ops igbvf_eth_dev_ops = { .link_update = eth_igb_link_update, .stats_get = eth_igbvf_stats_get, .xstats_get = eth_igbvf_xstats_get, + .xstats_get_names = eth_igbvf_xstats_get_names, .stats_reset = eth_igbvf_stats_reset, .xstats_reset = eth_igbvf_stats_reset, .vlan_filter_set = igbvf_vlan_filter_set, @@ -1691,6 +1699,26 @@ eth_igb_xstats_reset(struct rte_eth_dev *dev) memset(stats, 0, sizeof(*stats)); } +static int eth_igb_xstats_get_names(__rte_unused struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, + __rte_unused unsigned limit) +{ + unsigned i; + + if (xstats_names == NULL) + return IGB_NB_XSTATS; + + /* Note: limit checked in rte_eth_xstats_names() */ + + for (i = 0; i < IGB_NB_XSTATS; i++) { + snprintf(xstats_names[i].name, sizeof(xstats_names[i].name), + "%s", rte_igb_stats_strings[i].name); + xstats_names[i].id = i; + } + + return IGB_NB_XSTATS; +} + static int eth_igb_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, unsigned n) @@ -1713,8 +1741,8 @@ eth_igb_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, /* Extended stats */ for (i = 0; i < IGB_NB_XSTATS; i++) { - snprintf(xstats[i].name, sizeof(xstats[i].name), - "%s", rte_igb_stats_strings[i].name); + xstats[i].name[0] = '\0'; + xstats[i].id = i; xstats[i].value = *(uint64_t *)(((char *)hw_stats) + rte_igb_stats_strings[i].offset); } @@ -1762,6 +1790,22 @@ igbvf_read_stats_registers(struct e1000_hw *hw, struct e1000_vf_stats *hw_stats) hw_stats->last_gotlbc, hw_stats->gotlbc); } +static int eth_igbvf_xstats_get_names(__rte_unused struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, + __rte_unused unsigned limit) +{ + unsigned i; + + if (xstats_names != NULL) + for (i = 0; i < IGBVF_NB_XSTATS; i++) { + snprintf(xstats_names[i].name, + sizeof(xstats_names[i].name), "%s", + rte_igbvf_stats_strings[i].name); + xstats_names[i].id = i; + } + return IGBVF_NB_XSTATS; +} + static int eth_igbvf_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, unsigned n) @@ -1780,8 +1824,8 @@ eth_igbvf_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, return 0; for (i = 0; i < IGBVF_NB_XSTATS; i++) { - snprintf(xstats[i].name, sizeof(xstats[i].name), "%s", - rte_igbvf_stats_strings[i].name); + xstats[i].name[0] = '\0'; + xstats[i].id = i; xstats[i].value = *(uint64_t *)(((char *)hw_stats) + rte_igbvf_stats_strings[i].offset); }