net/i40e: fix VF statistics

CRC bytes should be excluded, so rx/tx bytes of VF stats is aligned
with PF stats.

Fixes: 9aace75fc82e ("i40e: fix statistics")
Cc: stable@dpdk.org
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 748e7ae..2f1cd85 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -2329,6 +2329,10 @@ i40e_update_vsi_stats(struct i40e_vsi *vsi)
        i40e_stat_update_48(hw, I40E_GLV_BPRCH(idx), I40E_GLV_BPRCL(idx),
                            vsi->offset_loaded, &oes->rx_broadcast,
                            &nes->rx_broadcast);
+       /* exclude CRC bytes */
+       nes->rx_bytes -= (nes->rx_unicast + nes->rx_multicast +
+               nes->rx_broadcast) * ETHER_CRC_LEN;
+
        i40e_stat_update_32(hw, I40E_GLV_RDPC(idx), vsi->offset_loaded,
                            &oes->rx_discards, &nes->rx_discards);
        /* GLV_REPC not supported */
@@ -2348,6 +2352,9 @@ i40e_update_vsi_stats(struct i40e_vsi *vsi)
        i40e_stat_update_48(hw, I40E_GLV_BPTCH(idx), I40E_GLV_BPTCL(idx),
                            vsi->offset_loaded,  &oes->tx_broadcast,
                            &nes->tx_broadcast);
+       /* exclude CRC bytes */
+       nes->tx_bytes -= (nes->tx_unicast + nes->tx_multicast +
+               nes->tx_broadcast) * ETHER_CRC_LEN;
        /* GLV_TDPC not supported */
        i40e_stat_update_32(hw, I40E_GLV_TEPC(idx), vsi->offset_loaded,
                            &oes->tx_errors, &nes->tx_errors);