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From: Jason Wang <jasowang@redhat.com>
To: Yongji Xie <xieyongji@bytedance.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Stefano Garzarella" <sgarzare@redhat.com>,
	"Parav Pandit" <parav@nvidia.com>,
	"Christoph Hellwig" <hch@infradead.org>,
	"Christian Brauner" <christian.brauner@canonical.com>,
	"Randy Dunlap" <rdunlap@infradead.org>,
	"Matthew Wilcox" <willy@infradead.org>,
	"Al Viro" <viro@zeniv.linux.org.uk>,
	"Jens Axboe" <axboe@kernel.dk>,
	bcrl@kvack.org, "Jonathan Corbet" <corbet@lwn.net>,
	"Mika Penttilä" <mika.penttila@nextfour.com>,
	"Dan Carpenter" <dan.carpenter@oracle.com>,
	joro@8bytes.org, "Greg KH" <gregkh@linuxfoundation.org>,
	"He Zhe" <zhe.he@windriver.com>,
	"Liu Xiaodong" <xiaodong.liu@intel.com>,
	songmuchun@bytedance.com,
	virtualization <virtualization@lists.linux-foundation.org>,
	netdev@vger.kernel.org, kvm <kvm@vger.kernel.org>,
	linux-fsdevel@vger.kernel.org, iommu@lists.linux-foundation.org,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v9 16/17] vduse: Introduce VDUSE - vDPA Device in Userspace
Date: Thu, 15 Jul 2021 13:00:56 +0800	[thread overview]
Message-ID: <5d756360-b540-2faf-6e52-e7e6e863ca0b@redhat.com> (raw)
In-Reply-To: <CACycT3vTyR=+6xOJyXCu_bGAKcz4Fx3bA25WfdBjhxJ6MOvLzw@mail.gmail.com>


在 2021/7/15 下午12:03, Yongji Xie 写道:
>> Which ioctl can be used for this?
>>
> I mean we can introduce a new ioctl for that in the future.


Ok, I see.


>
>>>> I wonder if it's better to do something similar to ccw:
>>>>
>>>> 1) requires the userspace to update the status bit in the response
>>>> 2) update the dev->status to the status in the response if no timeout
>>>>
>>>> Then userspace could then set NEEDS_RESET if necessary.
>>>>
>>> But NEEDS_RESET does not only happen in this case.
>> Yes, so you need an ioctl for userspace to update the device status
>> (NEEDS_RESET) probably.
>>
> Yes, but I'd like to do that after the initial version is merged since
> NEEDS_RESET is not supported now.


Right.

Thanks


>


  reply	other threads:[~2021-07-15  5:01 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-13  8:46 [PATCH v9 00/17] " Xie Yongji
2021-07-13  8:46 ` [PATCH v9 01/17] iova: Export alloc_iova_fast() and free_iova_fast() Xie Yongji
2021-07-13  8:46 ` [PATCH v9 02/17] file: Export receive_fd() to modules Xie Yongji
2021-07-13  8:46 ` [PATCH v9 03/17] vdpa: Fix code indentation Xie Yongji
2021-07-14  4:20   ` Joe Perches
2021-07-14  5:48     ` Yongji Xie
2021-07-13  8:46 ` [PATCH v9 04/17] vdpa: Fail the vdpa_reset() if fail to set device status to zero Xie Yongji
2021-07-13  8:46 ` [PATCH v9 05/17] vhost-vdpa: Fail the vhost_vdpa_set_status() on reset failure Xie Yongji
2021-07-13  8:46 ` [PATCH v9 06/17] vhost-vdpa: Handle the failure of vdpa_reset() Xie Yongji
2021-07-13  8:46 ` [PATCH v9 07/17] virtio: Don't set FAILED status bit on device index allocation failure Xie Yongji
2021-07-13 11:02   ` Dan Carpenter
2021-07-13 11:25     ` Yongji Xie
2021-07-13  8:46 ` [PATCH v9 08/17] virtio_config: Add a return value to reset function Xie Yongji
2021-07-13  8:46 ` [PATCH v9 09/17] virtio-vdpa: Handle the failure of vdpa_reset() Xie Yongji
2021-07-13  8:46 ` [PATCH v9 10/17] virtio: Handle device reset failure in register_virtio_device() Xie Yongji
2021-07-13  8:46 ` [PATCH v9 11/17] vhost-iotlb: Add an opaque pointer for vhost IOTLB Xie Yongji
2021-07-13  8:46 ` [PATCH v9 12/17] vdpa: Add an opaque pointer for vdpa_config_ops.dma_map() Xie Yongji
2021-07-13  8:46 ` [PATCH v9 13/17] vdpa: factor out vhost_vdpa_pa_map() and vhost_vdpa_pa_unmap() Xie Yongji
2021-07-13 11:31   ` Dan Carpenter
2021-07-14  2:14     ` Jason Wang
2021-07-14  8:05       ` Dan Carpenter
2021-07-14  9:41         ` Jason Wang
2021-07-14  9:57           ` Dan Carpenter
2021-07-15  2:20             ` Jason Wang
2021-07-14  5:24     ` Yongji Xie
2021-07-13  8:46 ` [PATCH v9 14/17] vdpa: Support transferring virtual addressing during DMA mapping Xie Yongji
2021-07-13  8:46 ` [PATCH v9 15/17] vduse: Implement an MMU-based IOMMU driver Xie Yongji
2021-07-13  8:46 ` [PATCH v9 16/17] vduse: Introduce VDUSE - vDPA Device in Userspace Xie Yongji
2021-07-13 13:27   ` Dan Carpenter
2021-07-14  2:54     ` Jason Wang
2021-07-14  5:45       ` Yongji Xie
2021-07-14  5:45   ` Jason Wang
2021-07-14  5:54     ` Michael S. Tsirkin
2021-07-14  6:02       ` Jason Wang
2021-07-14  6:47         ` Greg KH
2021-07-14  8:56           ` Jason Wang
2021-07-14  6:49     ` Yongji Xie
2021-07-14  9:12       ` Jason Wang
2021-07-15  4:03         ` Yongji Xie
2021-07-15  5:00           ` Jason Wang [this message]
2021-07-13  8:46 ` [PATCH v9 17/17] Documentation: Add documentation for VDUSE Xie Yongji
2021-07-15  5:18   ` Jason Wang
2021-07-15  7:27     ` Yongji Xie
2021-12-15 10:10 ` [PATCH v9 00/17] Introduce VDUSE - vDPA Device in Userspace Liuxiangdong
2021-12-16  3:14   ` Yongji Xie

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