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Message-ID: <20220517131348.498421-1-elic@nvidia.com>
Date: Tue, 17 May 2022 16:13:43 +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 v7 0/5] Show statistics for a vdpa device
The following four patch series adds support to read vendor statistics
for a vdpa device.
The first patch is just a cleanup fix.
The second patch lays the ground to allow an upstream driver to provide
statistics in the form of an attribute name/attribute value pairs.
The third patch makes changes to locking scheme to use readers/writers
semaphore instead if mutex.
The fourth patch implements this for mlx5_vdpa which gives received
descriptors and completed descriptors information for all the
virtqueues.
The fifth patch changes reslock mutex to readers/writers semaphore to
achieve the same goal as done in vdpa core.
Eli Cohen (5):
vdpa: Fix error logic in vdpa_nl_cmd_dev_get_doit
vdpa: Add support for querying vendor statistics
net/vdpa: Use readers/writers semaphore instead of mutex
vdpa/mlx5: Add support for reading descriptor statistics
vdpa/mlx5: Use readers/writers semaphore instead of mutex
v6 -> v7:
1. Add a new mlx5 patch to modify reslock from a mutex to rw_semaphore
2. Clean old comments
3. Move VDPA_ATTR_DEV_NET_CFG_MAX_VQP attribute insertion from mlx5 to
vdpa core.
drivers/vdpa/mlx5/core/mlx5_vdpa.h | 2 +
drivers/vdpa/mlx5/net/mlx5_vnet.c | 186 ++++++++++++++++++++---
drivers/vdpa/vdpa.c | 229 +++++++++++++++++++++++++----
include/linux/mlx5/mlx5_ifc.h | 1 +
include/linux/mlx5/mlx5_ifc_vdpa.h | 39 +++++
include/linux/vdpa.h | 3 +
include/uapi/linux/vdpa.h | 6 +
7 files changed, 414 insertions(+), 52 deletions(-)
--
2.35.1
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