Re: [PATCH net-next 1/6] virtio_net: introduce device stats feature and structures

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On Mon, 25 Dec 2023 16:01:39 +0800, Zhu Yanjun <yanjun.zhu@xxxxxxxxx> wrote:
> 在 2023/12/22 11:30, Xuan Zhuo 写道:
> > The virtio-net device stats spec:
> >
> > https://github.com/oasis-tcs/virtio-spec/commit/42f389989823039724f95bbbd243291ab0064f82
> >
> > This commit introduces the relative feature and structures.
>
> Hi, Xuan
>
> After applying this patch series, withe ethtool version 6.5,
> I got the following NIC statistics. But I do not find the statistics
> mentioned in this patch series.
> Do I miss something?

This needs the new virtio-net feature VIRTIO_NET_F_DEVICE_STATS.
You need to update the hypervisor. But the qemu may not support this.

Thanks.



>
> "
> NIC statistics:
>       rx_packets: 3434812669
>       rx_bytes: 5168475253690
>       rx_drops: 0
>       rx_xdp_packets: 0
>       rx_xdp_tx: 0
>       rx_xdp_redirects: 0
>       rx_xdp_drops: 0
>       rx_kicks: 57179891
>       tx_packets: 187694230
>       tx_bytes: 12423799040
>       tx_xdp_tx: 0
>       tx_xdp_tx_drops: 0
>       tx_kicks: 187694230
>       tx_timeouts: 0
>       rx_queue_0_packets: 866027381
>       rx_queue_0_bytes: 1302726908150
>       rx_queue_0_drops: 0
>       rx_queue_0_xdp_packets: 0
>       rx_queue_0_xdp_tx: 0
>       rx_queue_0_xdp_redirects: 0
>       rx_queue_0_xdp_drops: 0
>       rx_queue_0_kicks: 14567691
>       rx_queue_1_packets: 856758801
>       rx_queue_1_bytes: 1289899049042
>       rx_queue_1_drops: 0
>       rx_queue_1_xdp_packets: 0
>       rx_queue_1_xdp_tx: 0
>       rx_queue_1_xdp_redirects: 0
>       rx_queue_1_xdp_drops: 0
>       rx_queue_1_kicks: 14265201
>       rx_queue_2_packets: 839291053
>       rx_queue_2_bytes: 1261620863886
>       rx_queue_2_drops: 0
>       rx_queue_2_xdp_packets: 0
>       rx_queue_2_xdp_tx: 0
>       rx_queue_2_xdp_redirects: 0
>       rx_queue_2_xdp_drops: 0
>       rx_queue_2_kicks: 13857653
>       rx_queue_3_packets: 872735434
>       rx_queue_3_bytes: 1314228432612
>       rx_queue_3_drops: 0
>       rx_queue_3_xdp_packets: 0
>       rx_queue_3_xdp_tx: 0
>       rx_queue_3_xdp_redirects: 0
>       rx_queue_3_xdp_drops: 0
>       rx_queue_3_kicks: 14489346
>       tx_queue_0_packets: 75723
>       tx_queue_0_bytes: 4999030
>       tx_queue_0_xdp_tx: 0
>       tx_queue_0_xdp_tx_drops: 0
>       tx_queue_0_kicks: 75723
>       tx_queue_0_timeouts: 0
>       tx_queue_1_packets: 62262921
>       tx_queue_1_bytes: 4134803914
>       tx_queue_1_xdp_tx: 0
>       tx_queue_1_xdp_tx_drops: 0
>       tx_queue_1_kicks: 62262921
>       tx_queue_1_timeouts: 0
>       tx_queue_2_packets: 83
>       tx_queue_2_bytes: 5478
>       tx_queue_2_xdp_tx: 0
>       tx_queue_2_xdp_tx_drops: 0
>       tx_queue_2_kicks: 83
>       tx_queue_2_timeouts: 0
>       tx_queue_3_packets: 125355503
>       tx_queue_3_bytes: 8283990618
>       tx_queue_3_xdp_tx: 0
>       tx_queue_3_xdp_tx_drops: 0
>       tx_queue_3_kicks: 125355503
>       tx_queue_3_timeouts: 0
> "
>
> >
> > Signed-off-by: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>
> > ---
> >   include/uapi/linux/virtio_net.h | 137 ++++++++++++++++++++++++++++++++
> >   1 file changed, 137 insertions(+)
> >
> > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
> > index cc65ef0f3c3e..129e0871d28f 100644
> > --- a/include/uapi/linux/virtio_net.h
> > +++ b/include/uapi/linux/virtio_net.h
> > @@ -56,6 +56,7 @@
> >   #define VIRTIO_NET_F_MQ	22	/* Device supports Receive Flow
> >   					 * Steering */
> >   #define VIRTIO_NET_F_CTRL_MAC_ADDR 23	/* Set MAC address */
> > +#define VIRTIO_NET_F_DEVICE_STATS 50	/* Device can provide device-level statistics. */
> >   #define VIRTIO_NET_F_VQ_NOTF_COAL 52	/* Device supports virtqueue notification coalescing */
> >   #define VIRTIO_NET_F_NOTF_COAL	53	/* Device supports notifications coalescing */
> >   #define VIRTIO_NET_F_GUEST_USO4	54	/* Guest can handle USOv4 in. */
> > @@ -406,4 +407,140 @@ struct  virtio_net_ctrl_coal_vq {
> >   	struct virtio_net_ctrl_coal coal;
> >   };
> >
> > +/*
> > + * Device Statistics
> > + */
> > +#define VIRTIO_NET_CTRL_STATS         8
> > +#define VIRTIO_NET_CTRL_STATS_QUERY   0
> > +#define VIRTIO_NET_CTRL_STATS_GET     1
> > +
> > +struct virtio_net_stats_capabilities {
> > +
> > +#define VIRTIO_NET_STATS_TYPE_CVQ       (1L << 32)
> > +
> > +#define VIRTIO_NET_STATS_TYPE_RX_BASIC  (1 << 0)
> > +#define VIRTIO_NET_STATS_TYPE_RX_CSUM   (1 << 1)
> > +#define VIRTIO_NET_STATS_TYPE_RX_GSO    (1 << 2)
> > +#define VIRTIO_NET_STATS_TYPE_RX_SPEED  (1 << 3)
> > +
> > +#define VIRTIO_NET_STATS_TYPE_TX_BASIC  (1 << 16)
> > +#define VIRTIO_NET_STATS_TYPE_TX_CSUM   (1 << 17)
> > +#define VIRTIO_NET_STATS_TYPE_TX_GSO    (1 << 18)
> > +#define VIRTIO_NET_STATS_TYPE_TX_SPEED  (1 << 19)
> > +
> > +	__le64 supported_stats_types[1];
> > +};
> > +
> > +struct virtio_net_ctrl_queue_stats {
> > +	struct {
> > +		__le16 vq_index;
> > +		__le16 reserved[3];
> > +		__le64 types_bitmap[1];
> > +	} stats[1];
> > +};
> > +
> > +struct virtio_net_stats_reply_hdr {
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_CVQ       32
> > +
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_RX_BASIC  0
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_RX_CSUM   1
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_RX_GSO    2
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_RX_SPEED  3
> > +
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_TX_BASIC  16
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_TX_CSUM   17
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_TX_GSO    18
> > +#define VIRTIO_NET_STATS_TYPE_REPLY_TX_SPEED  19
> > +	u8 type;
> > +	u8 reserved;
> > +	__le16 vq_index;
> > +	__le16 reserved1;
> > +	__le16 size;
> > +};
> > +
> > +struct virtio_net_stats_cvq {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 command_num;
> > +	__le64 ok_num;
> > +};
> > +
> > +struct virtio_net_stats_rx_basic {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 rx_notifications;
> > +
> > +	__le64 rx_packets;
> > +	__le64 rx_bytes;
> > +
> > +	__le64 rx_interrupts;
> > +
> > +	__le64 rx_drops;
> > +	__le64 rx_drop_overruns;
> > +};
> > +
> > +struct virtio_net_stats_tx_basic {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 tx_notifications;
> > +
> > +	__le64 tx_packets;
> > +	__le64 tx_bytes;
> > +
> > +	__le64 tx_interrupts;
> > +
> > +	__le64 tx_drops;
> > +	__le64 tx_drop_malformed;
> > +};
> > +
> > +struct virtio_net_stats_rx_csum {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 rx_csum_valid;
> > +	__le64 rx_needs_csum;
> > +	__le64 rx_csum_none;
> > +	__le64 rx_csum_bad;
> > +};
> > +
> > +struct virtio_net_stats_tx_csum {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 tx_csum_none;
> > +	__le64 tx_needs_csum;
> > +};
> > +
> > +struct virtio_net_stats_rx_gso {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 rx_gso_packets;
> > +	__le64 rx_gso_bytes;
> > +	__le64 rx_gso_packets_coalesced;
> > +	__le64 rx_gso_bytes_coalesced;
> > +};
> > +
> > +struct virtio_net_stats_tx_gso {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 tx_gso_packets;
> > +	__le64 tx_gso_bytes;
> > +	__le64 tx_gso_segments;
> > +	__le64 tx_gso_segments_bytes;
> > +	__le64 tx_gso_packets_noseg;
> > +	__le64 tx_gso_bytes_noseg;
> > +};
> > +
> > +struct virtio_net_stats_rx_speed {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 rx_packets_allowance_exceeded;
> > +	__le64 rx_bytes_allowance_exceeded;
> > +};
> > +
> > +struct virtio_net_stats_tx_speed {
> > +	struct virtio_net_stats_reply_hdr hdr;
> > +
> > +	__le64 tx_packets_allowance_exceeded;
> > +	__le64 tx_bytes_allowance_exceeded;
> > +};
> > +
> >   #endif /* _UAPI_LINUX_VIRTIO_NET_H */
>





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