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[PATCH REQUIREMENTS v2 0/7] virtio net new features requirements
On Mon, 3 Jul 2023 02:44:04 +0300, Parav Pandit <[email protected]> wrote:
> Add requirements document template for the virtio net features.
>
> Add virtio net device counters visible to driver.
>
> Signed-off-by: Parav Pandit <[email protected]>
> ---
> changelog:
> v0->v1:
> - removed tx dropped counter
> - updated requirements to mention about virtqueue interface for counters
>
query
> ---
> net-workstream/features-1.4.md | 35 ++++++++++++++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
> create mode 100644 net-workstream/features-1.4.md
>
> diff --git a/net-workstream/features-1.4.md b/net-workstream/features-1.4.md
> new file mode 100644
> index 0000000..4c3797b
> --- /dev/null
> +++ b/net-workstream/features-1.4.md
> @@ -0,0 +1,35 @@
> +# 1. Introduction
> +
> +This document describes the overall requirements for virtio net device
> +improvements for upcoming release 1.4. Some of these requirements are
> +interrelated and influence the interface design, hence reviewing them
> +together is desired while updating the virtio net interface.
> +
> +# 2. Summary
> +1. Device counters visible to the driver
> +
> +# 3. Requirements
> +## 3.1 Device counters
> +1. The driver should be able to query the device and/or per vq counters for
> +
debugging purpose using a virtqueue directly from driver to device for
> +
example using a control vq.
> +2. The driver should be able to query which counters are supported using a
> +
virtqueue command, for example using an existing control vq.
> +3. If this device is migrated between two hosts, the driver should be able
> +
get the counter values in the destination host from where it was left
> +
off in the source host.
> +4. If a virtio device is group member device, a group owner should be able
> +
to query all the counter attributes using the administration command which
> +
a virtio member device will expose via a virtqueue to the driver.
> +
> +### 3.1.1 Per receive queue counters
> +1. le64 rx_oversize_pkt_errors: Packet dropped due to receive packet being
> +
oversize than the buffer size
> +2. le64 rx_no_buffer_pkt_errors: Packet dropped due to unavailability of the
> +
buffer in the receive queue
> +3. le64 rx_gro_pkts: Packets treated as receive GSO sequence by the device
> +4. le64 rx_pkts: Total packets received by the device
> +
> +### 3.1.2 Per transmit queue counters
> +1. le64 tx_gso_pkts: Packets send as transmit GSO sequence
> +2. le64 tx_pkts: Total packets send by the device
Hi
About the device counter, I will continue to push this patch, can you review it.
[email protected]">http://lore.kernel.org/all/[email protected]
Thanks
> --
> 2.26.2
>
>
>
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