linux-kernel - [PATCH v2 0/2] vdpa: add two ioctl commands to support generic vDPA

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Message-ID: <20220310072051.2175-1-longpeng2@huawei.com>
Date:   Thu, 10 Mar 2022 15:20:49 +0800
From:   "Longpeng(Mike)" <longpeng2@...wei.com>
To:     <mst@...hat.com>, <sgarzare@...hat.com>, <stefanha@...hat.com>,
        <jasowang@...hat.com>
CC:     <virtualization@...ts.linux-foundation.org>, <kvm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <arei.gonglei@...wei.com>, <yechuan@...wei.com>,
        <huangzhichao@...wei.com>, <gdawar@...inx.com>,
        Longpeng <longpeng2@...wei.com>
Subject: [PATCH v2 0/2] vdpa: add two ioctl commands to support generic vDPA

From: Longpeng <longpeng2@...wei.com>

To support generic vdpa deivce[1], we need add the following ioctls:
  - GET_CONFIG_SIZE: the size of the virtio config space (Patch 1)
  - GET_VQS_COUNT: the count of virtqueues that exposed (Patch 2)

Changes v1(RFC) -> v2:
  Patch 1:
    - be more verbose in commit message and the comment for get_config_size
      [Jason]
  Patch 2:
    - change the type of nvqs to u32 [Jason]
  Patch 3:
    - drop from this series because Gautam sent another proposal[2]

[1] https://lore.kernel.org/all/20220105005900.860-1-longpeng2@huawei.com/
[2] https://patchwork.kernel.org/project/kvm/patch/20220224212314.1326-20-gdawar@xilinx.com/

Longpeng (2):
  vdpa: support exposing the config size to userspace
  vdpa: support exposing the count of vqs to userspace

 drivers/vdpa/vdpa.c        |  6 +++---
 drivers/vhost/vdpa.c       | 40 ++++++++++++++++++++++++++++++++++++----
 include/linux/vdpa.h       |  9 +++++----
 include/uapi/linux/vhost.h |  7 +++++++
 4 files changed, 51 insertions(+), 11 deletions(-)

-- 
1.8.3.1