> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Remy Horton
> Sent: Friday, April 15, 2016 10:44 AM
> To: dev at dpdk.org; Helin Zhang <helin.zhang at intel.com>
> Subject: [dpdk-dev] [RFC PATCH v1 2/3] drivers/net/ixgbe: change xstats to
> use integers
>
> Signed-off-by: Remy Horton <remy.horton at intel.com>
> ---
> drivers/net/ixgbe/ixgbe_ethdev.c | 87
> +++++++++++++++++++++++++++++++++++-----
> 1 file changed, 78 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> b/drivers/net/ixgbe/ixgbe_ethdev.c
> index 3f1ebc1..4d31fe9 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_names(__rte_unused struct rte_eth_dev *dev,
> + struct rte_eth_xstats_name *ptr_names, __rte_unused unsigned limit);
> +static int ixgbevf_dev_xstats_names(__rte_unused struct rte_eth_dev *dev,
> + struct rte_eth_xstats_name *ptr_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_names = ixgbe_dev_xstats_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_names = ixgbevf_dev_xstats_names,
> .dev_close = ixgbevf_dev_close,
> .allmulticast_enable = ixgbevf_dev_allmulticast_enable,
> .allmulticast_disable = ixgbevf_dev_allmulticast_disable,
> @@ -2698,6 +2704,76 @@ ixgbe_xstats_calc_num(void) {
> (IXGBE_NB_TXQ_PRIO_STATS * 8);
> }
>
> +static int ixgbe_dev_xstats_names(__rte_unused struct rte_eth_dev *dev,
> + struct rte_eth_xstats_name *ptr_names, __rte_unused unsigned limit)
> +{
> + const unsigned cnt_stats = ixgbe_xstats_calc_num();
> + unsigned stat, i, count, offset;
> +
> + if (ptr_names != NULL) {
> + count = 0;
> + offset = 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++) {
> + snprintf(ptr_names[count].name,
> + sizeof(ptr_names[count].name),
> + "%s",
> + rte_ixgbe_stats_strings[i].name);
> + count++;
> + offset += RTE_ETH_XSTATS_NAME_SIZE;
> + }
> +
> + /* RX Priority Stats */
> + for (stat = 0; stat < IXGBE_NB_RXQ_PRIO_STATS; stat++) {
> + for (i = 0; i < 8; i++) {
8 seems magical. Is there a constant somewhere that can be used?
> + snprintf(ptr_names[count].name,
> + sizeof(ptr_names[count].name),
> + "rx_priority%u_%s", i,
> + rte_ixgbe_rxq_strings[stat].name);
> + count++;
> + offset += RTE_ETH_XSTATS_NAME_SIZE;
> + }
> + }
> +
> + /* TX Priority Stats */
> + for (stat = 0; stat < IXGBE_NB_TXQ_PRIO_STATS; stat++) {
> + for (i = 0; i < 8; i++) {
Same magic number.
> + snprintf(ptr_names[count].name,
> + sizeof(ptr_names[count].name),
> + "tx_priority%u_%s", i,
> + rte_ixgbe_txq_strings[stat].name);
> + count++;
> + offset += RTE_ETH_XSTATS_NAME_SIZE;
> + }
> + }
> + /* FIXME: Debugging check */
Just a reminder to cleanup.
> + if (cnt_stats != count)
> + return -EIO;
> + }
> + return cnt_stats;
> +}
> +
> +static int ixgbevf_dev_xstats_names(__rte_unused struct rte_eth_dev *dev,
> + struct rte_eth_xstats_name *ptr_names, __rte_unused unsigned limit)
> +{
> + unsigned i;
> +
> + if (limit < IXGBEVF_NB_XSTATS)
Think this check has to be removed since rte_eth_xstats_count() calls with
limit == 0.
> + return -ENOMEM;
> +
> + if (ptr_names != NULL)
> + for (i = 0; i < IXGBEVF_NB_XSTATS; i++)
> + snprintf(ptr_names[i].name,
> + sizeof(ptr_names[i].name),
> + "%s", rte_ixgbevf_stats_strings[i].name);
> + return IXGBEVF_NB_XSTATS;
> +}
> +
> static int
> ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats
> *xstats,
> unsigned n)
> @@ -2731,8 +2807,6 @@ 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);
Forgot to add key/id.
Also, same name comment as above.
> xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
> rte_ixgbe_stats_strings[i].offset);
> count++;
> @@ -2741,9 +2815,6 @@ 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);
Add key/id...terminate name.
> xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
> rte_ixgbe_rxq_strings[stat].offset +
> (sizeof(uint64_t) * i));
> @@ -2754,16 +2825,14 @@ 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);
Add key/id...terminate name.
> xstats[count].value = *(uint64_t *)(((char *)hw_stats) +
> rte_ixgbe_txq_strings[stat].offset +
> (sizeof(uint64_t) * i));
> count++;
> }
> }
> -
> + for (i = 0; i < count; i++)
> + xstats[i].key = i;
Suggest doing this in the loops above to be consistent with pass-thru
and likely saves some instructions.
Regards,
Dave
> return count;
> }
>
> --
> 2.5.5
