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sfc: add XDP counters to ethtool stats

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Count XDP packet drops, error drops, transmissions and redirects and
expose these counters via the ethtool stats command.

Signed-off-by: Charles McLachlan <cmclachlan@solarflare.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Charles McLachlan
2019-10-31 10:24:23 +00:00
committed by David S. Miller
parent dfe44c1f52
commit cd846bef2d
3 changed files with 42 additions and 0 deletions
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9
drivers/net/ethernet/sfc/rx.c
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@@ -677,6 +677,7 @@ static bool efx_do_xdp(struct efx_nic *efx, struct efx_channel *channel,
netif_err(efx, rx_err, efx->net_dev,
"XDP is not possible with multiple receive fragments (%d)\n",
channel->rx_pkt_n_frags);
channel->n_rx_xdp_bad_drops++;
return false;
}
@@ -722,6 +723,9 @@ static bool efx_do_xdp(struct efx_nic *efx, struct efx_channel *channel,
if (net_ratelimit())
netif_err(efx, rx_err, efx->net_dev,
"XDP TX failed (%d)\n", err);
channel->n_rx_xdp_bad_drops++;
} else {
channel->n_rx_xdp_tx++;
}
break;
@@ -732,12 +736,16 @@ static bool efx_do_xdp(struct efx_nic *efx, struct efx_channel *channel,
if (net_ratelimit())
netif_err(efx, rx_err, efx->net_dev,
"XDP redirect failed (%d)\n", err);
channel->n_rx_xdp_bad_drops++;
} else {
channel->n_rx_xdp_redirect++;
}
break;
default:
bpf_warn_invalid_xdp_action(xdp_act);
efx_free_rx_buffers(rx_queue, rx_buf, 1);
channel->n_rx_xdp_bad_drops++;
break;
case XDP_ABORTED:
@@ -745,6 +753,7 @@ static bool efx_do_xdp(struct efx_nic *efx, struct efx_channel *channel,
/* Fall through */
case XDP_DROP:
efx_free_rx_buffers(rx_queue, rx_buf, 1);
channel->n_rx_xdp_drops++;
break;
}