From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 8BC122BAB for ; Mon, 13 Jun 2016 17:52:39 +0200 (CEST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 13 Jun 2016 08:52:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,466,1459839600"; d="scan'208";a="986500412" Received: from rhorton-mobl.ger.corp.intel.com (HELO VM.ir.intel.com) ([163.33.230.109]) by fmsmga001.fm.intel.com with ESMTP; 13 Jun 2016 08:52:05 -0700 From: Remy Horton To: dev@dpdk.org, Helin Zhang , Thomas Monjalon Date: Mon, 13 Jun 2016 16:51:55 +0100 Message-Id: <1465833121-26953-3-git-send-email-remy.horton@intel.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1465833121-26953-1-git-send-email-remy.horton@intel.com> References: <1465833121-26953-1-git-send-email-remy.horton@intel.com> Subject: [dpdk-dev] [PATCH v4 2/8] drivers/net/ixgbe: 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: , X-List-Received-Date: Mon, 13 Jun 2016 15:52:40 -0000 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 ixgbe driver to use the new API that seperates name string and value queries. Signed-off-by: Remy Horton --- drivers/net/ixgbe/ixgbe_ethdev.c | 101 +++++++++++++++++++++++++++++++++------ 1 file changed, 86 insertions(+), 15 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index a2b170b..9e73492 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -179,6 +179,10 @@ static int ixgbevf_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, unsigned n); static void ixgbe_dev_stats_reset(struct rte_eth_dev *dev); static void ixgbe_dev_xstats_reset(struct rte_eth_dev *dev); +static int ixgbe_dev_xstats_get_names(__rte_unused struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, __rte_unused unsigned limit); +static int ixgbevf_dev_xstats_get_names(__rte_unused struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, __rte_unused unsigned limit); static int ixgbe_dev_queue_stats_mapping_set(struct rte_eth_dev *eth_dev, uint16_t queue_id, uint8_t stat_idx, @@ -466,6 +470,7 @@ static const struct eth_dev_ops ixgbe_eth_dev_ops = { .xstats_get = ixgbe_dev_xstats_get, .stats_reset = ixgbe_dev_stats_reset, .xstats_reset = ixgbe_dev_xstats_reset, + .xstats_get_names = ixgbe_dev_xstats_get_names, .queue_stats_mapping_set = ixgbe_dev_queue_stats_mapping_set, .dev_infos_get = ixgbe_dev_info_get, .dev_supported_ptypes_get = ixgbe_dev_supported_ptypes_get, @@ -555,6 +560,7 @@ static const struct eth_dev_ops ixgbevf_eth_dev_ops = { .xstats_get = ixgbevf_dev_xstats_get, .stats_reset = ixgbevf_dev_stats_reset, .xstats_reset = ixgbevf_dev_stats_reset, + .xstats_get_names = ixgbevf_dev_xstats_get_names, .dev_close = ixgbevf_dev_close, .allmulticast_enable = ixgbevf_dev_allmulticast_enable, .allmulticast_disable = ixgbevf_dev_allmulticast_disable, @@ -685,6 +691,7 @@ static const struct rte_ixgbe_xstats_name_off rte_ixgbe_rxq_strings[] = { #define IXGBE_NB_RXQ_PRIO_STATS (sizeof(rte_ixgbe_rxq_strings) / \ sizeof(rte_ixgbe_rxq_strings[0])) +#define IXGBE_NB_RXQ_PRIO_VALUES 8 static const struct rte_ixgbe_xstats_name_off rte_ixgbe_txq_strings[] = { {"xon_packets", offsetof(struct ixgbe_hw_stats, pxontxc)}, @@ -695,6 +702,7 @@ static const struct rte_ixgbe_xstats_name_off rte_ixgbe_txq_strings[] = { #define IXGBE_NB_TXQ_PRIO_STATS (sizeof(rte_ixgbe_txq_strings) / \ sizeof(rte_ixgbe_txq_strings[0])) +#define IXGBE_NB_TXQ_PRIO_VALUES 8 static const struct rte_ixgbe_xstats_name_off rte_ixgbevf_stats_strings[] = { {"rx_multicast_packets", offsetof(struct ixgbevf_hw_stats, vfmprc)}, @@ -2695,8 +2703,75 @@ ixgbe_dev_stats_reset(struct rte_eth_dev *dev) /* This function calculates the number of xstats based on the current config */ static unsigned ixgbe_xstats_calc_num(void) { - return IXGBE_NB_HW_STATS + (IXGBE_NB_RXQ_PRIO_STATS * 8) + - (IXGBE_NB_TXQ_PRIO_STATS * 8); + return IXGBE_NB_HW_STATS + + (IXGBE_NB_RXQ_PRIO_STATS * IXGBE_NB_RXQ_PRIO_VALUES) + + (IXGBE_NB_TXQ_PRIO_STATS * IXGBE_NB_TXQ_PRIO_VALUES); +} + +static int ixgbe_dev_xstats_get_names(__rte_unused struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, __rte_unused unsigned limit) +{ + const unsigned cnt_stats = ixgbe_xstats_calc_num(); + unsigned stat, i, count; + + if (xstats_names != NULL) { + count = 0; + + /* Note: limit >= cnt_stats checked upstream + * in rte_eth_xstats_names() + */ + + /* Extended stats from ixgbe_hw_stats */ + for (i = 0; i < IXGBE_NB_HW_STATS; i++) { + xstats_names[count].id = count; + snprintf(xstats_names[count].name, + sizeof(xstats_names[count].name), + "%s", + rte_ixgbe_stats_strings[i].name); + count++; + } + + /* RX Priority Stats */ + for (stat = 0; stat < IXGBE_NB_RXQ_PRIO_STATS; stat++) { + for (i = 0; i < IXGBE_NB_RXQ_PRIO_VALUES; i++) { + xstats_names[count].id = count; + snprintf(xstats_names[count].name, + sizeof(xstats_names[count].name), + "rx_priority%u_%s", i, + rte_ixgbe_rxq_strings[stat].name); + count++; + } + } + + /* TX Priority Stats */ + for (stat = 0; stat < IXGBE_NB_TXQ_PRIO_STATS; stat++) { + for (i = 0; i < IXGBE_NB_TXQ_PRIO_VALUES; i++) { + xstats_names[count].id = count; + snprintf(xstats_names[count].name, + sizeof(xstats_names[count].name), + "tx_priority%u_%s", i, + rte_ixgbe_txq_strings[stat].name); + count++; + } + } + } + return cnt_stats; +} + +static int ixgbevf_dev_xstats_get_names(__rte_unused struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, unsigned limit) +{ + unsigned i; + + if (limit < IXGBEVF_NB_XSTATS && xstats_names != NULL) + return -ENOMEM; + + if (xstats_names != NULL) + for (i = 0; i < IXGBEVF_NB_XSTATS; i++) + snprintf(xstats_names[i].name, + sizeof(xstats_names[i].name), + "%s", rte_ixgbevf_stats_strings[i].name); + return IXGBEVF_NB_XSTATS; } static int @@ -2732,8 +2807,8 @@ ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, /* Extended stats from ixgbe_hw_stats */ count = 0; for (i = 0; i < IXGBE_NB_HW_STATS; i++) { - snprintf(xstats[count].name, sizeof(xstats[count].name), "%s", - rte_ixgbe_stats_strings[i].name); + xstats[count].id = count; + xstats[count].name[0] = '\0'; xstats[count].value = *(uint64_t *)(((char *)hw_stats) + rte_ixgbe_stats_strings[i].offset); count++; @@ -2741,10 +2816,9 @@ ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, /* RX Priority Stats */ for (stat = 0; stat < IXGBE_NB_RXQ_PRIO_STATS; stat++) { - for (i = 0; i < 8; i++) { - snprintf(xstats[count].name, sizeof(xstats[count].name), - "rx_priority%u_%s", i, - rte_ixgbe_rxq_strings[stat].name); + for (i = 0; i < IXGBE_NB_RXQ_PRIO_VALUES; i++) { + xstats[count].id = count; + xstats[count].name[0] = '\0'; xstats[count].value = *(uint64_t *)(((char *)hw_stats) + rte_ixgbe_rxq_strings[stat].offset + (sizeof(uint64_t) * i)); @@ -2754,17 +2828,15 @@ ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, /* TX Priority Stats */ for (stat = 0; stat < IXGBE_NB_TXQ_PRIO_STATS; stat++) { - for (i = 0; i < 8; i++) { - snprintf(xstats[count].name, sizeof(xstats[count].name), - "tx_priority%u_%s", i, - rte_ixgbe_txq_strings[stat].name); + for (i = 0; i < IXGBE_NB_TXQ_PRIO_VALUES; i++) { + xstats[count].id = count; + xstats[count].name[0] = '\0'; xstats[count].value = *(uint64_t *)(((char *)hw_stats) + rte_ixgbe_txq_strings[stat].offset + (sizeof(uint64_t) * i)); count++; } } - return count; } @@ -2829,8 +2901,7 @@ ixgbevf_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats, /* Extended stats */ for (i = 0; i < IXGBEVF_NB_XSTATS; i++) { - snprintf(xstats[i].name, sizeof(xstats[i].name), - "%s", rte_ixgbevf_stats_strings[i].name); + xstats[i].id = i; xstats[i].value = *(uint64_t *)(((char *)hw_stats) + rte_ixgbevf_stats_strings[i].offset); } -- 2.5.5