net/mlx4_en: Add ethtool statistics for XDP cases

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XDP statistics are reported in ethtool, in total and per ring,
as follows:
- xdp_drop: the number of packets dropped by xdp.
- xdp_tx: the number of packets forwarded by xdp.
- xdp_tx_full: the number of times an xdp forward failed
	due to a full tx xdp ring.

In addition, all packets that are dropped/forwarded by XDP
are no longer accounted in rx_packets/rx_bytes of the ring,
so that they count traffic that is passed to the stack.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Tariq Toukan 2016-11-02 17:12:25 +02:00 • committed by David S. Miller

parent 67f8b1dcb9

commit 15fca2c8eb

7 changed files with 60 additions and 12 deletions

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25

drivers/net/ethernet/mellanox/mlx4/en_ethtool.c

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4

drivers/net/ethernet/mellanox/mlx4/en_netdev.c

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6

drivers/net/ethernet/mellanox/mlx4/en_port.c

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12

drivers/net/ethernet/mellanox/mlx4/en_rx.c

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8

drivers/net/ethernet/mellanox/mlx4/en_tx.c

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7

drivers/net/ethernet/mellanox/mlx4/mlx4_en.h

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10

drivers/net/ethernet/mellanox/mlx4/mlx4_stats.h

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