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net/i40e: fix statistics inconsistency

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While calculating the input packet count per port, discarded packets
should be reduced, right now only PF VSI discarded packets are reduced.
But while calculating the input byte count per port, Rx byte count is
used, which should take all discarded packets into account, including
VF VSI ones.
This will cause inconsistency in stat counters in some cases.

This patch would take all VSI stats as packet and byte count to address
the issue.

Fixes: 763de290cbd1 ("net/i40e: fix packet count for PF")
Cc: stable@dpdk.org

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
This commit is contained in:
Xiaoyun Li 2018-12-06 14:03:42 +08:00 committed by Ferruh Yigit
parent 0eaa1f8c75
commit 63056c1920
1 changed files with 20 additions and 5 deletions
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25
drivers/net/i40e/i40e_ethdev.c
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@ -3174,20 +3174,20 @@ i40e_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct i40e_hw_port_stats *ns = &pf->stats; /* new stats */
struct i40e_vsi *vsi;
unsigned i;
/* call read registers - updates values, now write them to struct */
i40e_read_stats_registers(pf, hw);
stats->ipackets = ns->eth.rx_unicast +
ns->eth.rx_multicast +
ns->eth.rx_broadcast -
ns->eth.rx_discards -
stats->ipackets = pf->main_vsi->eth_stats.rx_unicast +
pf->main_vsi->eth_stats.rx_multicast +
pf->main_vsi->eth_stats.rx_broadcast -
pf->main_vsi->eth_stats.rx_discards;
stats->opackets = ns->eth.tx_unicast +
ns->eth.tx_multicast +
ns->eth.tx_broadcast;
stats->ibytes = ns->eth.rx_bytes;
stats->ibytes = pf->main_vsi->eth_stats.rx_bytes;
stats->obytes = ns->eth.tx_bytes;
stats->oerrors = ns->eth.tx_errors +
pf->main_vsi->eth_stats.tx_errors;
@ -3199,6 +3199,21 @@ i40e_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
ns->rx_length_errors + ns->rx_undersize +
ns->rx_oversize + ns->rx_fragments + ns->rx_jabber;
if (pf->vfs) {
for (i = 0; i < pf->vf_num; i++) {
vsi = pf->vfs[i].vsi;
i40e_update_vsi_stats(vsi);
stats->ipackets += (vsi->eth_stats.rx_unicast +
vsi->eth_stats.rx_multicast +
vsi->eth_stats.rx_broadcast -
vsi->eth_stats.rx_discards);
stats->ibytes += vsi->eth_stats.rx_bytes;
stats->oerrors += vsi->eth_stats.tx_errors;
stats->imissed += vsi->eth_stats.rx_discards;
}
}
PMD_DRV_LOG(DEBUG, "***************** PF stats start *******************");
PMD_DRV_LOG(DEBUG, "rx_bytes: %"PRIu64"", ns->eth.rx_bytes);
PMD_DRV_LOG(DEBUG, "rx_unicast: %"PRIu64"", ns->eth.rx_unicast);