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

From: Eli Cohen
Date: Tue Apr 12 2022 - 09:15:02 EST


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(+)

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2.35.1