From: Ilias Apalodimas <ilias.apalodimas@linaro.org>
To: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: davem@davemloft.net, netdev@vger.kernel.org, lorenzo.bianconi@redhat.com
Subject: Re: [PATCH net] net: socionext: netsec: fix xdp stats accounting
Date: Fri, 11 Oct 2019 17:15:03 +0300 [thread overview]
Message-ID: <20191011141503.GA11359@apalos.home> (raw)
In-Reply-To: <40c5519a86f2c611de84661a9d1e136bda2cd78e.1570801159.git.lorenzo@kernel.org>
Hi Lorenzo,
On Fri, Oct 11, 2019 at 03:45:38PM +0200, Lorenzo Bianconi wrote:
> Increment netdev rx counters even for XDP_DROP verdict. Moreover report
> even tx bytes for xdp buffers (TYPE_NETSEC_XDP_TX or
> TYPE_NETSEC_XDP_NDO)
The RX counters work fine. The TX change is causing a panic though and i am
looking into it since your patch seems harmless. In any case please don't merge
this yet
Thanks
/Ilias
> Fixes: ba2b232108d3 ("net: netsec: add XDP support")
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
> just compiled not tested on a real device
> ---
> drivers/net/ethernet/socionext/netsec.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c
> index f9e6744d8fd6..b1c2a79899b3 100644
> --- a/drivers/net/ethernet/socionext/netsec.c
> +++ b/drivers/net/ethernet/socionext/netsec.c
> @@ -252,7 +252,6 @@
> #define NETSEC_XDP_CONSUMED BIT(0)
> #define NETSEC_XDP_TX BIT(1)
> #define NETSEC_XDP_REDIR BIT(2)
> -#define NETSEC_XDP_RX_OK (NETSEC_XDP_PASS | NETSEC_XDP_TX | NETSEC_XDP_REDIR)
>
> enum ring_id {
> NETSEC_RING_TX = 0,
> @@ -661,6 +660,7 @@ static bool netsec_clean_tx_dring(struct netsec_priv *priv)
> bytes += desc->skb->len;
> dev_kfree_skb(desc->skb);
> } else {
> + bytes += desc->xdpf->len;
> xdp_return_frame(desc->xdpf);
> }
> next:
> @@ -1030,7 +1030,7 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget)
>
> next:
> if ((skb && napi_gro_receive(&priv->napi, skb) != GRO_DROP) ||
> - xdp_result & NETSEC_XDP_RX_OK) {
> + xdp_result) {
> ndev->stats.rx_packets++;
> ndev->stats.rx_bytes += xdp.data_end - xdp.data;
> }
> --
> 2.21.0
>
next prev parent reply other threads:[~2019-10-11 14:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-11 13:45 [PATCH net] net: socionext: netsec: fix xdp stats accounting Lorenzo Bianconi
2019-10-11 14:15 ` Ilias Apalodimas [this message]
2019-10-11 15:16 ` Ilias Apalodimas
2019-10-11 15:58 ` Lorenzo Bianconi
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