linux-kernel - [PATCH v2 0/2] Show statistics for a vdpa device

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Date:   Tue, 12 Apr 2022 16:04:00 +0300
From:   Eli Cohen <elic@...dia.com>
To:     <mst@...hat.com>, <jasowang@...hat.com>
CC:     <virtualization@...ts.linux-foundation.org>,
        <linux-kernel@...r.kernel.org>, <si-wei.liu@...cle.com>,
        Eli Cohen <elic@...dia.com>
Subject: [PATCH v2 0/2] Show statistics for a vdpa device

The following two patch series adds support to read vendor statistics
for a vdpa device.

The first patch lays the ground to allow an upstream driver to provide
statistics in the form of an attribute name/attribute value pairs.

The second patch implements this for mlx5_vdpa which gives received
descriptors and completed descriptors information for all the
virtqueues. 

v1->v2:
Return negotiated features and max virtqueue pairs in each stats record
to aid userspace in determining if this is a data or control virtqueue.

Eli Cohen (2):
  vdpa: Add support for querying vendor statistics
  vdpa/mlx5: Add support for reading descriptor statistics

 drivers/vdpa/mlx5/core/mlx5_vdpa.h |   2 +
 drivers/vdpa/mlx5/net/mlx5_vnet.c  | 165 +++++++++++++++++++++++++++++
 drivers/vdpa/vdpa.c                | 129 ++++++++++++++++++++++
 include/linux/mlx5/mlx5_ifc.h      |   1 +
 include/linux/mlx5/mlx5_ifc_vdpa.h |  39 +++++++
 include/linux/vdpa.h               |   5 +
 include/uapi/linux/vdpa.h          |   6 ++
 7 files changed, 347 insertions(+)

-- 
2.35.1