From 25e38f09af9c58cce6b23cff54529158825ecaa5 Mon Sep 17 00:00:00 2001 From: Jacek Piasecki Date: Thu, 13 Apr 2017 16:59:27 +0200 Subject: [PATCH] net/e1000: support xstats by ID To achieve functionality of retrieving only specific statistics given by application there are two new functions added: eth_igb_xstats_get_by_ids() which retrieve values of statistics specified by ids array and eth_igb_xstats_get_names_by_ids() which retrieve names of statistics specified by ids array. Signed-off-by: Jacek Piasecki Signed-off-by: Kuba Kozak Acked-by: Harry van Haaren --- drivers/net/e1000/igb_ethdev.c | 92 +++++++++++++++++++++++++++++++++- 1 file changed, 90 insertions(+), 2 deletions(-) diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c index 2bda4b3a17..ca9f98cecc 100644 --- a/drivers/net/e1000/igb_ethdev.c +++ b/drivers/net/e1000/igb_ethdev.c @@ -116,9 +116,13 @@ 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_xstat *xstats, unsigned n); +static int eth_igb_xstats_get_by_ids(struct rte_eth_dev *dev, uint64_t *ids, + uint64_t *values, unsigned int n); static int eth_igb_xstats_get_names(struct rte_eth_dev *dev, - struct rte_eth_xstat_name *xstats_names, - unsigned limit); + struct rte_eth_xstat_name *xstats_names, unsigned int limit); +static int eth_igb_xstats_get_names_by_ids(struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, uint64_t *ids, + unsigned int limit); static void eth_igb_stats_reset(struct rte_eth_dev *dev); static void eth_igb_xstats_reset(struct rte_eth_dev *dev); static int eth_igb_fw_version_get(struct rte_eth_dev *dev, @@ -389,6 +393,8 @@ 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_by_ids = eth_igb_xstats_get_by_ids, + .xstats_get_names_by_ids = eth_igb_xstats_get_names_by_ids, .xstats_get_names = eth_igb_xstats_get_names, .stats_reset = eth_igb_stats_reset, .xstats_reset = eth_igb_xstats_reset, @@ -1862,6 +1868,41 @@ static int eth_igb_xstats_get_names(__rte_unused struct rte_eth_dev *dev, return IGB_NB_XSTATS; } +static int eth_igb_xstats_get_names_by_ids(struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, uint64_t *ids, + unsigned int limit) +{ + unsigned int i; + + if (!ids) { + if (xstats_names == NULL) + return IGB_NB_XSTATS; + + 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); + + return IGB_NB_XSTATS; + + } else { + struct rte_eth_xstat_name xstats_names_copy[IGB_NB_XSTATS]; + + eth_igb_xstats_get_names_by_ids(dev, xstats_names_copy, NULL, + IGB_NB_XSTATS); + + for (i = 0; i < limit; i++) { + if (ids[i] >= IGB_NB_XSTATS) { + PMD_INIT_LOG(ERR, "id value isn't valid"); + return -1; + } + strcpy(xstats_names[i].name, + xstats_names_copy[ids[i]].name); + } + return limit; + } +} + static int eth_igb_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats, unsigned n) @@ -1892,6 +1933,53 @@ eth_igb_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats, return IGB_NB_XSTATS; } +static int +eth_igb_xstats_get_by_ids(struct rte_eth_dev *dev, uint64_t *ids, + uint64_t *values, unsigned int n) +{ + unsigned int i; + + if (!ids) { + struct e1000_hw *hw = + E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct e1000_hw_stats *hw_stats = + E1000_DEV_PRIVATE_TO_STATS(dev->data->dev_private); + + if (n < IGB_NB_XSTATS) + return IGB_NB_XSTATS; + + igb_read_stats_registers(hw, hw_stats); + + /* If this is a reset xstats is NULL, and we have cleared the + * registers by reading them. + */ + if (!values) + return 0; + + /* Extended stats */ + for (i = 0; i < IGB_NB_XSTATS; i++) + values[i] = *(uint64_t *)(((char *)hw_stats) + + rte_igb_stats_strings[i].offset); + + return IGB_NB_XSTATS; + + } else { + uint64_t values_copy[IGB_NB_XSTATS]; + + eth_igb_xstats_get_by_ids(dev, NULL, values_copy, + IGB_NB_XSTATS); + + for (i = 0; i < n; i++) { + if (ids[i] >= IGB_NB_XSTATS) { + PMD_INIT_LOG(ERR, "id value isn't valid"); + return -1; + } + values[i] = values_copy[ids[i]]; + } + return n; + } +} + static void igbvf_read_stats_registers(struct e1000_hw *hw, struct e1000_vf_stats *hw_stats) { -- 2.20.1