Please read the links we already shared with you!!!
No MIME, no links, no compression, no attachments. Just plain text
https://www.kernel.org/doc/html/latest/process/submitting-patches.html#no-mime-no-links-no-compression-no-attachments-just-plain-text
On Tue, 11 Feb 2025 at 06:24, 吴俊南 wrote:
> Did you by any chance use an automated tool of any sort to find this issue or
> generate the fix?
>
> I don't think this is actually necessary here, you're in the same context as
> the
> updater of the stats, you don't need any protection.
> You can remove u64_stats_update_begin() / end() (in n
> From: Xuan Zhuo
> Sent: Friday, May 10, 2024 1:48 AM
> To: Dan Jurgens
> Cc: m...@redhat.com; jasow...@redhat.com; virtualizat...@lists.linux.dev;
> da...@davemloft.net; eduma...@google.com; k...@kernel.org;
> pab...@redhat.com; Jiri Pirko ; netdev@vger.kernel.org
> Subjec
On Fri, 10 May 2024 03:35:51 +, Dan Jurgens wrote:
> > From: Xuan Zhuo
> > Sent: Thursday, May 9, 2024 8:22 PM
> > To: Dan Jurgens
> > Cc: m...@redhat.com; jasow...@redhat.com; xuanz...@linux.alibaba.com;
> > virtualizat...@lists.linux.dev; da...@davemloft.net;
> > eduma...@google.com; k...@
On Fri, Apr 16, 2021 at 11:24 AM Jason Wang wrote:
>
>
> 在 2021/3/31 下午4:05, Xie Yongji 写道:
> > + }
> > + case VDUSE_INJECT_VQ_IRQ:
> > + ret = -EINVAL;
> > + if (arg >= dev->vq_num)
> > + break;
> > +
> > + ret = 0;
> > +
On Fri, Apr 16, 2021 at 10:24 AM Jason Wang wrote:
>
>
> 在 2021/4/15 下午10:38, Stefan Hajnoczi 写道:
> > On Thu, Apr 15, 2021 at 04:36:35PM +0800, Jason Wang wrote:
> >> 在 2021/4/15 下午3:19, Stefan Hajnoczi 写道:
> >>> On Thu, Apr 15, 2021 at 01:38:37PM +0800, Yongji Xie wrote:
> On Wed, Apr 14, 20
On Fri, Apr 16, 2021 at 11:03 AM Jason Wang wrote:
>
>
> 在 2021/4/16 上午10:58, Yongji Xie 写道:
> > On Fri, Apr 16, 2021 at 10:20 AM Jason Wang wrote:
> >>
> >> 在 2021/4/15 下午7:17, Yongji Xie 写道:
> >>> On Thu, Apr 15, 2021 at 5:05 PM Jason Wang wrote:
> 在 2021/4/15 下午4:36, Jason Wang 写道:
> >>>
On Thu, Apr 15, 2021 at 10:38 PM Stefan Hajnoczi wrote:
>
> On Thu, Apr 15, 2021 at 04:36:35PM +0800, Jason Wang wrote:
> >
> > 在 2021/4/15 下午3:19, Stefan Hajnoczi 写道:
> > > On Thu, Apr 15, 2021 at 01:38:37PM +0800, Yongji Xie wrote:
> > > > On Wed, Apr 14, 2021 at 10:15 PM Stefan Hajnoczi
> > >
On Fri, Apr 16, 2021 at 10:20 AM Jason Wang wrote:
>
>
> 在 2021/4/15 下午7:17, Yongji Xie 写道:
> > On Thu, Apr 15, 2021 at 5:05 PM Jason Wang wrote:
> >>
> >> 在 2021/4/15 下午4:36, Jason Wang 写道:
> Please state this explicitly at the start of the document. Existing
> interfaces like FUSE are
On Thu, Apr 15, 2021 at 04:33:27PM +0800, Yongji Xie wrote:
> On Thu, Apr 15, 2021 at 3:19 PM Stefan Hajnoczi wrote:
> > On Thu, Apr 15, 2021 at 01:38:37PM +0800, Yongji Xie wrote:
> > > On Wed, Apr 14, 2021 at 10:15 PM Stefan Hajnoczi
> > > wrote:
> > > > On Wed, Mar 31, 2021 at 04:05:19PM +080
On Thu, Apr 15, 2021 at 5:05 PM Jason Wang wrote:
>
>
> 在 2021/4/15 下午4:36, Jason Wang 写道:
> >>>
> >> Please state this explicitly at the start of the document. Existing
> >> interfaces like FUSE are designed to avoid trusting userspace.
> >
> >
> > There're some subtle difference here. VDUSE pres
On Thu, Apr 15, 2021 at 3:19 PM Stefan Hajnoczi wrote:
>
> On Thu, Apr 15, 2021 at 01:38:37PM +0800, Yongji Xie wrote:
> > On Wed, Apr 14, 2021 at 10:15 PM Stefan Hajnoczi
> > wrote:
> > >
> > > On Wed, Mar 31, 2021 at 04:05:19PM +0800, Xie Yongji wrote:
> > > > VDUSE (vDPA Device in Userspace)
On Thu, Apr 15, 2021 at 01:38:37PM +0800, Yongji Xie wrote:
> On Wed, Apr 14, 2021 at 10:15 PM Stefan Hajnoczi wrote:
> >
> > On Wed, Mar 31, 2021 at 04:05:19PM +0800, Xie Yongji wrote:
> > > VDUSE (vDPA Device in Userspace) is a framework to support
> > > implementing software-emulated vDPA devic
On Wed, Apr 14, 2021 at 10:15 PM Stefan Hajnoczi wrote:
>
> On Wed, Mar 31, 2021 at 04:05:19PM +0800, Xie Yongji wrote:
> > VDUSE (vDPA Device in Userspace) is a framework to support
> > implementing software-emulated vDPA devices in userspace. This
> > document is intended to clarify the VDUSE de
On Wed, Apr 14, 2021 at 3:35 PM Michael S. Tsirkin wrote:
>
> On Wed, Mar 31, 2021 at 04:05:09PM +0800, Xie Yongji wrote:
> > This series introduces a framework, which can be used to implement
> > vDPA Devices in a userspace program. The work consist of two parts:
> > control path forwarding and d
Hi Jorgen,
Thanks for the detailed explanation and I agree with you. For the bind list,
my prototype is doing
something similar to that. I will double check it.
Hi Stefano,
I don't have other questions for now. Thanks.
Regards,
Jiang
On Tue, Apr 13, 2021 at 5:52 AM Stefano Garzarella wrote:
On Tue, Apr 13, 2021 at 08:56:30AM +0200, Christian Herber wrote:
> Hi Andrew,
>
> On 4/12/2021 6:52 PM, Andrew Lunn wrote:
> >
> > So what you are say is, you don't care if the IP is completely
> > different, it all goes in one driver. So lets put this driver into
> > nxp-tja11xx.c. And then we
Hi Andrew,
On 4/12/2021 6:52 PM, Andrew Lunn wrote:
So what you are say is, you don't care if the IP is completely
different, it all goes in one driver. So lets put this driver into
nxp-tja11xx.c. And then we avoid all the naming issues.
Andrew
As this seems to be a key question, let
On Tue, Apr 13, 2021 at 11:35 AM Jason Wang wrote:
>
>
> 在 2021/4/12 下午5:59, Yongji Xie 写道:
> > On Mon, Apr 12, 2021 at 5:37 PM Jason Wang wrote:
> >>
> >> 在 2021/4/12 下午4:02, Yongji Xie 写道:
> >>> On Mon, Apr 12, 2021 at 3:16 PM Jason Wang wrote:
> 在 2021/4/9 下午4:02, Yongji Xie 写道:
> >>
On Mon, Apr 12, 2021 at 7:04 AM Stefano Garzarella wrote:
>
> Hi Jiang,
> thanks for re-starting the multi-transport support for dgram!
No problem.
> On Wed, Apr 07, 2021 at 11:25:36AM -0700, Jiang Wang . wrote:
> >On Wed, Apr 7, 2021 at 2:51 AM Jorgen Hansen wrote:
> >>
> >>
> >> > On 6 Apr 20
On Mon, Apr 12, 2021 at 5:37 PM Jason Wang wrote:
>
>
> 在 2021/4/12 下午4:02, Yongji Xie 写道:
> > On Mon, Apr 12, 2021 at 3:16 PM Jason Wang wrote:
> >>
> >> 在 2021/4/9 下午4:02, Yongji Xie 写道:
> >>> +};
> >>> +
> >>> +struct vduse_dev_config_data {
> >>> + __u32 offset; /* offset
On Mon, Apr 12, 2021 at 10:29:17AM +0800, Yongji Xie wrote:
> On Mon, Apr 12, 2021 at 4:49 AM Michael S. Tsirkin wrote:
> >
> > On Sun, Apr 11, 2021 at 01:36:18PM +0800, Yongji Xie wrote:
> > > On Sat, Apr 10, 2021 at 12:16 AM Michael S. Tsirkin
> > > wrote:
> > > >
> > > > On Wed, Mar 31, 2021
On Mon, Apr 12, 2021 at 3:16 PM Jason Wang wrote:
>
>
> 在 2021/4/9 下午4:02, Yongji Xie 写道:
> > +};
> > +
> > +struct vduse_dev_config_data {
> > + __u32 offset; /* offset from the beginning of config space */
> > + __u32 len; /* the length to read/write */
> > +
On Mon, Apr 12, 2021 at 4:49 AM Michael S. Tsirkin wrote:
>
> On Sun, Apr 11, 2021 at 01:36:18PM +0800, Yongji Xie wrote:
> > On Sat, Apr 10, 2021 at 12:16 AM Michael S. Tsirkin wrote:
> > >
> > > On Wed, Mar 31, 2021 at 04:05:12PM +0800, Xie Yongji wrote:
> > > > Use vhost_dev->mutex to protect
(trimmed off the batman/bpf Ccs)
On 2020-05-18 14:28, syzbot wrote:
syzbot has bisected this bug to:
commit 0d8dd67be013727ae57645ecd3ea2c36365d7da8
Author: Song Liu
Date: Wed Dec 6 22:45:14 2017 +
perf/headers: Sync new perf_event.h with the tools/include/uapi version
bisection l
On Sun, Apr 11, 2021 at 01:36:18PM +0800, Yongji Xie wrote:
> On Sat, Apr 10, 2021 at 12:16 AM Michael S. Tsirkin wrote:
> >
> > On Wed, Mar 31, 2021 at 04:05:12PM +0800, Xie Yongji wrote:
> > > Use vhost_dev->mutex to protect vhost device iotlb from
> > > concurrent access.
> > >
> > > Fixes: 4c8
On Sat, Apr 10, 2021 at 12:16 AM Michael S. Tsirkin wrote:
>
> On Wed, Mar 31, 2021 at 04:05:12PM +0800, Xie Yongji wrote:
> > Use vhost_dev->mutex to protect vhost device iotlb from
> > concurrent access.
> >
> > Fixes: 4c8cf318("vhost: introduce vDPA-based backend")
> > Cc: sta...@vger.kernel.or
On Fri, Apr 09, 2021 at 08:36:07 +0200, Greg KH
> On Thu, Apr 08, 2021 at 07:11:48PM +, Jianmin Wang wrote:
> > while the new services need to invoke libkcapi in the container environment.
> >
> > We have verified that the problem doesn't exist on newer kernel version.
> > However, due to man
On Fri, Apr 9, 2021 at 1:36 PM Jason Wang wrote:
>
>
> 在 2021/4/8 下午5:36, Yongji Xie 写道:
> > On Thu, Apr 8, 2021 at 2:57 PM Jason Wang wrote:
> >>
> >> 在 2021/3/31 下午4:05, Xie Yongji 写道:
> >>> This VDUSE driver enables implementing vDPA devices in userspace.
> >>> Both control path and data path
On Thu, Apr 08, 2021 at 07:11:48PM +, Jianmin Wang wrote:
> On Mon, Apr 05, 2021 at 16:14 UTC, Greg KH wrote:
> > On Mon, Apr 05, 2021 at 01:55:15PM +, Jianmin Wang wrote:
> > > There is same problem found in linux 4.19.y as upstream commit. The
> > > changes of crypto_user_* and cryptouse
On Mon, Apr 05, 2021 at 16:14 UTC, Greg KH wrote:
> On Mon, Apr 05, 2021 at 01:55:15PM +, Jianmin Wang wrote:
> > There is same problem found in linux 4.19.y as upstream commit. The
> > changes of crypto_user_* and cryptouser.h files from upstream patch are
> > merged into
> > crypto/crypto_
On Thu, Apr 8, 2021 at 2:57 PM Jason Wang wrote:
>
>
> 在 2021/3/31 下午4:05, Xie Yongji 写道:
> > This VDUSE driver enables implementing vDPA devices in userspace.
> > Both control path and data path of vDPA devices will be able to
> > be handled in userspace.
> >
> > In the control path, the VDUSE dr
On Thu, Apr 8, 2021 at 3:18 PM Jason Wang wrote:
>
>
> 在 2021/3/31 下午4:05, Xie Yongji 写道:
> > VDUSE (vDPA Device in Userspace) is a framework to support
> > implementing software-emulated vDPA devices in userspace. This
> > document is intended to clarify the VDUSE design and usage.
> >
> > Signed
On Thu, Apr 8, 2021 at 11:26 AM Jason Wang wrote:
>
>
> 在 2021/3/31 下午4:05, Xie Yongji 写道:
> > This implements an MMU-based IOMMU driver to support mapping
> > kernel dma buffer into userspace. The basic idea behind it is
> > treating MMU (VA->PA) as IOMMU (IOVA->PA). The driver will set
> > up MM
Hi, Randy,
> -Original Message-
> From: Randy Dunlap
> Sent: Wednesday, March 31, 2021 18:28
> To: Stephen Rothwell ; Linux Next Mailing List n...@vger.kernel.org>
> Cc: Linux Kernel Mailing List ; Kostya
> Porotchkin ; netdev@vger.kernel.org
> Subject: [EXT] Re: linux-next: Tree for Mar
On Wed, Mar 31, 2021 at 10:08 PM Christian Brauner
wrote:
>
> On Wed, Mar 31, 2021 at 09:59:07PM +0800, Yongji Xie wrote:
> > On Wed, Mar 31, 2021 at 8:23 PM Christian Brauner
> > wrote:
> > >
> > > On Wed, Mar 31, 2021 at 07:32:33PM +0800, Yongji Xie wrote:
> > > > On Wed, Mar 31, 2021 at 5:15 P
On Wed, Mar 31, 2021 at 8:23 PM Christian Brauner
wrote:
>
> On Wed, Mar 31, 2021 at 07:32:33PM +0800, Yongji Xie wrote:
> > On Wed, Mar 31, 2021 at 5:15 PM Christian Brauner
> > wrote:
> > >
> > > On Wed, Mar 31, 2021 at 04:05:10PM +0800, Xie Yongji wrote:
> > > > Export receive_fd() so that som
On Wed, Mar 31, 2021 at 5:15 PM Christian Brauner
wrote:
>
> On Wed, Mar 31, 2021 at 04:05:10PM +0800, Xie Yongji wrote:
> > Export receive_fd() so that some modules can use
> > it to pass file descriptor between processes without
> > missing any security stuffs.
> >
> > Signed-off-by: Xie Yongji
> -原始邮件-
> 发件人: "David Miller"
> 发送时间: 2021-03-31 08:02:28 (星期三)
> 收件人: lyl2...@mail.ustc.edu.cn
> 抄送: santosh.shilim...@oracle.com, k...@kernel.org, netdev@vger.kernel.org,
> linux-r...@vger.kernel.org, rds-de...@oss.oracle.com,
> linux-ker...@vger.kernel.org
> 主题: Re: [PATCH] net/rd
> -原始邮件-
> 发件人: "Heiner Kallweit"
> 发送时间: 2021-03-29 17:51:30 (星期一)
> 收件人: "Lv Yunlong" , nic_s...@realtek.com,
> k...@kernel.org
> 抄送: netdev@vger.kernel.org, linux-ker...@vger.kernel.org
> 主题: Re: [PATCH] ethernet/realtek/r8169: Fix a double free in
> rtl8169_start_xmit
>
> On 29.0
On Fri, Mar 26, 2021 at 2:16 PM Jason Wang wrote:
>
>
> 在 2021/3/26 下午1:14, Yongji Xie 写道:
>
> + }
> + map->bounce_page = page;
> +
> + /* paired with vduse_domain_map_page() */
> + smp_mb();
>
> So this is suspicious. It's better to explain like, we need make sure A
> must be done
On Fri, Mar 26, 2021 at 12:27 PM Jason Wang wrote:
>
>
> 在 2021/3/25 下午3:38, Yongji Xie 写道:
> > On Thu, Mar 25, 2021 at 12:53 PM Jason Wang wrote:
> >>
> >> 在 2021/3/24 下午3:39, Yongji Xie 写道:
> >>> On Wed, Mar 24, 2021 at 11:54 AM Jason Wang wrote:
> 在 2021/3/15 下午1:37, Xie Yongji 写道:
> >>>
On Thu, Mar 25, 2021 at 4:25 PM Christoph Hellwig wrote:
>
> On Mon, Mar 15, 2021 at 05:46:43PM +0800, Yongji Xie wrote:
> > On Mon, Mar 15, 2021 at 5:08 PM Christoph Hellwig
> > wrote:
> > >
> > > On Mon, Mar 15, 2021 at 01:37:11PM +0800, Xie Yongji wrote:
> > > > Export __receive_fd() so that
On Thu, Mar 25, 2021 at 12:53 PM Jason Wang wrote:
>
>
> 在 2021/3/24 下午3:39, Yongji Xie 写道:
> > On Wed, Mar 24, 2021 at 11:54 AM Jason Wang wrote:
> >>
> >> 在 2021/3/15 下午1:37, Xie Yongji 写道:
> >>> This implements an MMU-based IOMMU driver to support mapping
> >>> kernel dma buffer into userspace
On Thu, Mar 25, 2021 at 2:31 PM Jason Wang wrote:
>
>
> 在 2021/3/24 下午4:55, Yongji Xie 写道:
> > On Wed, Mar 24, 2021 at 12:43 PM Jason Wang wrote:
> >>
> >> 在 2021/3/15 下午1:37, Xie Yongji 写道:
> >>> This VDUSE driver enables implementing vDPA devices in userspace.
> >>> Both control path and data p
On Wed, Mar 24, 2021 at 12:45 PM Jason Wang wrote:
>
>
> 在 2021/3/15 下午1:37, Xie Yongji 写道:
> > This patch introduces a new ioctl VDUSE_INJECT_CONFIG_IRQ
> > to support injecting config interrupt.
> >
> > Signed-off-by: Xie Yongji
>
>
> I suggest to squash this into path 9.
>
Will do it in v6.
On Wed, Mar 24, 2021 at 12:43 PM Jason Wang wrote:
>
>
> 在 2021/3/15 下午1:37, Xie Yongji 写道:
> > This VDUSE driver enables implementing vDPA devices in userspace.
> > Both control path and data path of vDPA devices will be able to
> > be handled in userspace.
> >
> > In the control path, the VDUSE
On Wed, Mar 24, 2021 at 11:54 AM Jason Wang wrote:
>
>
> 在 2021/3/15 下午1:37, Xie Yongji 写道:
> > This implements an MMU-based IOMMU driver to support mapping
> > kernel dma buffer into userspace. The basic idea behind it is
> > treating MMU (VA->PA) as IOMMU (IOVA->PA). The driver will set
> > up M
> -原始邮件-
> 发件人: "Maxim Mikityanskiy"
> 发送时间: 2021-03-23 16:52:07 (星期二)
> 收件人: "Lv Yunlong" , bor...@nvidia.com,
> sae...@nvidia.com, l...@kernel.org, da...@davemloft.net, k...@kernel.org,
> maxi...@mellanox.com
> 抄送: netdev@vger.kernel.org, linux-r...@vger.kernel.org,
> linux-ker...@
On Tue, Mar 23, 2021 at 11:13 AM Jason Wang wrote:
>
>
> 在 2021/3/15 下午1:37, Xie Yongji 写道:
> > This patch introduces an attribute for vDPA device to indicate
> > whether virtual address can be used. If vDPA device driver set
> > it, vhost-vdpa bus driver will not pin user page and transfer
> > us
On Tue, Mar 23, 2021 at 11:02 AM Jason Wang wrote:
>
>
> 在 2021/3/15 下午1:37, Xie Yongji 写道:
> > Use vhost_dev->mutex to protect vhost device iotlb from
> > concurrent access.
> >
> > Fixes: 4c8cf318("vhost: introduce vDPA-based backend")
> > Signed-off-by: Xie Yongji
>
>
> Acked-by: Jason Wang
>
On Mon, Mar 15, 2021 at 10:44 PM Christian Brauner
wrote:
>
> On Mon, Mar 15, 2021 at 05:46:43PM +0800, Yongji Xie wrote:
> > On Mon, Mar 15, 2021 at 5:08 PM Christoph Hellwig
> > wrote:
> > >
> > > On Mon, Mar 15, 2021 at 01:37:11PM +0800, Xie Yongji wrote:
> > > > Export __receive_fd() so that
On Mon, Mar 15, 2021 at 13:18:24 +0100, Guillaume Nault wrote:
> On Fri, Mar 12, 2021 at 10:47:53PM +0800, lyl2...@mail.ustc.edu.cn wrote:
> >
> >
> >
> > > -原始邮件-
> > > 发件人: "Tom Parkin"
> > > 发送时间: 2021-03-12 18:12:58 (星期五)
> > > 收件人: lyl2...@mail.ustc.edu.cn
> > > 抄送: pau...@samba.o
On Fri, Mar 12, 2021 at 10:47:53PM +0800, lyl2...@mail.ustc.edu.cn wrote:
>
>
>
> > -原始邮件-
> > 发件人: "Tom Parkin"
> > 发送时间: 2021-03-12 18:12:58 (星期五)
> > 收件人: lyl2...@mail.ustc.edu.cn
> > 抄送: pau...@samba.org, da...@davemloft.net, linux-...@vger.kernel.org,
> > netdev@vger.kernel.org, l
On Fri, Mar 12, 2021 at 22:47:53 +0800, lyl2...@mail.ustc.edu.cn wrote:
>
>
>
> > -原始邮件-
> > 发件人: "Tom Parkin"
> > 发送时间: 2021-03-12 18:12:58 (星期五)
> > 收件人: lyl2...@mail.ustc.edu.cn
> > 抄送: pau...@samba.org, da...@davemloft.net, linux-...@vger.kernel.org,
> > netdev@vger.kernel.org, li
On Mon, Mar 15, 2021 at 5:08 PM Christoph Hellwig wrote:
>
> On Mon, Mar 15, 2021 at 01:37:11PM +0800, Xie Yongji wrote:
> > Export __receive_fd() so that some modules can use
> > it to pass file descriptor between processes.
>
> I really don't think any non-core code should do that, especilly not
> -原始邮件-
> 发件人: "Tom Parkin"
> 发送时间: 2021-03-12 18:12:58 (星期五)
> 收件人: lyl2...@mail.ustc.edu.cn
> 抄送: pau...@samba.org, da...@davemloft.net, linux-...@vger.kernel.org,
> netdev@vger.kernel.org, linux-ker...@vger.kernel.org
> 主题: Re: [BUG] net/ppp: A use after free in ppp_unregister_chan
On Wed, Mar 10, 2021 at 8:58 PM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > +
> > + switch (cmd) {
> > + case VDUSE_IOTLB_GET_FD: {
> > + struct vduse_iotlb_entry entry;
> > + struct vhost_iotlb_map *map;
> > + struct vdpa_map_fil
On Mon, Mar 8, 2021 at 3:02 PM Jason Wang wrote:
>
>
> On 2021/3/8 12:50 下午, Yongji Xie wrote:
> > On Mon, Mar 8, 2021 at 11:04 AM Jason Wang wrote:
> >>
> >> On 2021/3/5 4:12 下午, Yongji Xie wrote:
> >>> On Fri, Mar 5, 2021 at 3:37 PM Jason Wang wrote:
> On 2021/3/5 3:27 下午, Yongji Xie wrot
On Mon, Mar 8, 2021 at 3:04 PM Jason Wang wrote:
>
>
> On 2021/3/8 1:05 下午, Yongji Xie wrote:
> > On Mon, Mar 8, 2021 at 11:52 AM Jason Wang wrote:
> >>
> >> On 2021/3/8 11:45 上午, Yongji Xie wrote:
> >>> On Mon, Mar 8, 2021 at 11:17 AM Jason Wang wrote:
> On 2021/3/5 3:59 下午, Yongji Xie wro
On Mon, Mar 8, 2021 at 11:52 AM Jason Wang wrote:
>
>
> On 2021/3/8 11:45 上午, Yongji Xie wrote:
> > On Mon, Mar 8, 2021 at 11:17 AM Jason Wang wrote:
> >>
> >> On 2021/3/5 3:59 下午, Yongji Xie wrote:
> >>> On Fri, Mar 5, 2021 at 3:27 PM Jason Wang wrote:
> On 2021/3/5 3:13 下午, Yongji Xie wro
On Mon, Mar 8, 2021 at 11:04 AM Jason Wang wrote:
>
>
> On 2021/3/5 4:12 下午, Yongji Xie wrote:
> > On Fri, Mar 5, 2021 at 3:37 PM Jason Wang wrote:
> >>
> >> On 2021/3/5 3:27 下午, Yongji Xie wrote:
> >>> On Fri, Mar 5, 2021 at 3:01 PM Jason Wang wrote:
> On 2021/3/5 2:36 下午, Yongji Xie wrote
On Mon, Mar 8, 2021 at 11:17 AM Jason Wang wrote:
>
>
> On 2021/3/5 3:59 下午, Yongji Xie wrote:
> > On Fri, Mar 5, 2021 at 3:27 PM Jason Wang wrote:
> >>
> >> On 2021/3/5 3:13 下午, Yongji Xie wrote:
> >>> On Fri, Mar 5, 2021 at 2:52 PM Jason Wang wrote:
> On 2021/3/5 2:15 下午, Yongji Xie wrote
On Fri, Mar 5, 2021 at 3:37 PM Jason Wang wrote:
>
>
> On 2021/3/5 3:27 下午, Yongji Xie wrote:
> > On Fri, Mar 5, 2021 at 3:01 PM Jason Wang wrote:
> >>
> >> On 2021/3/5 2:36 下午, Yongji Xie wrote:
> >>> On Fri, Mar 5, 2021 at 11:42 AM Jason Wang wrote:
> On 2021/3/5 11:30 上午, Yongji Xie wrot
On Fri, Mar 5, 2021 at 3:27 PM Jason Wang wrote:
>
>
> On 2021/3/5 3:13 下午, Yongji Xie wrote:
> > On Fri, Mar 5, 2021 at 2:52 PM Jason Wang wrote:
> >>
> >> On 2021/3/5 2:15 下午, Yongji Xie wrote:
> >>
> >> Sorry if I've asked this before.
> >>
> >> But what's the reason for maintaing a dedicated
On Fri, Mar 5, 2021 at 3:01 PM Jason Wang wrote:
>
>
> On 2021/3/5 2:36 下午, Yongji Xie wrote:
> > On Fri, Mar 5, 2021 at 11:42 AM Jason Wang wrote:
> >>
> >> On 2021/3/5 11:30 上午, Yongji Xie wrote:
> >>> On Fri, Mar 5, 2021 at 11:05 AM Jason Wang wrote:
> On 2021/3/4 4:58 下午, Yongji Xie wro
On Fri, Mar 5, 2021 at 2:52 PM Jason Wang wrote:
>
>
> On 2021/3/5 2:15 下午, Yongji Xie wrote:
>
> Sorry if I've asked this before.
>
> But what's the reason for maintaing a dedicated IOTLB here? I think we
> could reuse vduse_dev->iommu since the device can not be used by both
> virtio and vhost i
On Fri, Mar 5, 2021 at 11:44 AM Jason Wang wrote:
>
>
> On 2021/3/5 11:37 上午, Yongji Xie wrote:
> > On Fri, Mar 5, 2021 at 11:11 AM Jason Wang wrote:
> >>
> >> On 2021/3/4 4:19 下午, Yongji Xie wrote:
> >>> On Thu, Mar 4, 2021 at 3:30 PM Jason Wang wrote:
> On 2021/2/23 7:50 下午, Xie Yongji wr
On Fri, Mar 5, 2021 at 11:42 AM Jason Wang wrote:
>
>
> On 2021/3/5 11:30 上午, Yongji Xie wrote:
> > On Fri, Mar 5, 2021 at 11:05 AM Jason Wang wrote:
> >>
> >> On 2021/3/4 4:58 下午, Yongji Xie wrote:
> >>> On Thu, Mar 4, 2021 at 2:59 PM Jason Wang wrote:
> On 2021/2/23 7:50 下午, Xie Yongji wr
On Fri, Mar 5, 2021 at 11:36 AM Jason Wang wrote:
>
>
> On 2021/3/4 1:12 下午, Yongji Xie wrote:
> > On Thu, Mar 4, 2021 at 12:21 PM Jason Wang wrote:
> >>
> >> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> >>> This implements a MMU-based IOMMU driver to support mapping
> >>> kernel dma buffer into use
On Fri, Mar 5, 2021 at 11:20 AM Jason Wang wrote:
>
>
> On 2021/3/4 4:05 下午, Yongji Xie wrote:
> > On Thu, Mar 4, 2021 at 2:27 PM Jason Wang wrote:
> >>
> >> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> >>> This VDUSE driver enables implementing vDPA devices in userspace.
> >>> Both control path and
On Fri, Mar 5, 2021 at 11:11 AM Jason Wang wrote:
>
>
> On 2021/3/4 4:19 下午, Yongji Xie wrote:
> > On Thu, Mar 4, 2021 at 3:30 PM Jason Wang wrote:
> >>
> >> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> >>> Add a parameter for the ioctl VDUSE_INJECT_VQ_IRQ to support
> >>> injecting virtqueue's inte
On Fri, Mar 5, 2021 at 11:05 AM Jason Wang wrote:
>
>
> On 2021/3/4 4:58 下午, Yongji Xie wrote:
> > On Thu, Mar 4, 2021 at 2:59 PM Jason Wang wrote:
> >>
> >> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> >>> This patch introduces a workqueue to support injecting
> >>> virtqueue's interrupt asynchrono
On Thu, Mar 4, 2021 at 2:40 PM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > VDUSE (vDPA Device in Userspace) is a framework to support
> > implementing software-emulated vDPA devices in userspace. This
> > document is intended to clarify the VDUSE design and usage.
> >
> > S
On Thu, Mar 4, 2021 at 2:59 PM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > This patch introduces a workqueue to support injecting
> > virtqueue's interrupt asynchronously. This is mainly
> > for performance considerations which makes sure the push()
> > and pop() for used v
On Thu, Mar 4, 2021 at 3:30 PM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > Add a parameter for the ioctl VDUSE_INJECT_VQ_IRQ to support
> > injecting virtqueue's interrupt to the specified cpu.
>
>
> How userspace know which CPU is this irq for? It looks to me we need to
>
On Thu, Mar 4, 2021 at 2:27 PM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > This VDUSE driver enables implementing vDPA devices in userspace.
> > Both control path and data path of vDPA devices will be able to
> > be handled in userspace.
> >
> > In the control path, the VDU
On Thu, Mar 4, 2021 at 11:07 AM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > This patch introduces an attribute for vDPA device to indicate
> > whether virtual address can be used. If vDPA device driver set
> > it, vhost-vdpa bus driver will not pin user page and transfer
>
On Thu, Mar 4, 2021 at 12:21 PM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > This implements a MMU-based IOMMU driver to support mapping
> > kernel dma buffer into userspace. The basic idea behind it is
> > treating MMU (VA->PA) as IOMMU (IOVA->PA). The driver will set
> > u
On Wed, Mar 3, 2021 at 6:52 PM Mika Penttilä wrote:
>
>
>
> On 23.2.2021 13.50, Xie Yongji wrote:
> > This patch introduces an attribute for vDPA device to indicate
> > whether virtual address can be used. If vDPA device driver set
> > it, vhost-vdpa bus driver will not pin user page and transfer
On Tue, Mar 2, 2021 at 2:44 PM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > Increase the recursion depth of eventfd_signal() to 1. This
> > is the maximum recursion depth we have found so far.
> >
> > Signed-off-by: Xie Yongji
>
>
> Acked-by: Jason Wang
>
> It might be use
On Tue, Mar 2, 2021 at 2:47 PM Jason Wang wrote:
>
>
> On 2021/2/23 7:50 下午, Xie Yongji wrote:
> > Use vhost_dev->mutex to protect vhost device iotlb from
> > concurrent access.
> >
> > Fixes: 4c8cf318("vhost: introduce vDPA-based backend")
> > Signed-off-by: Xie Yongji
> > ---
> > drivers/vhos
> On Sun, Feb 28, 2021 at 08:25:22PM +0800, Dinghao Liu wrote:
> > There is one il_set_tx_power() call in this function without
> > return value check. Print error message and return error code
> > on failure just like the other il_set_tx_power() call.
>
> We have few calls for il_set_tx_power(),
Xuan Zhuo wrote:
> On Wed, 17 Feb 2021 16:46:04 -0800, John Fastabend
> wrote:
> > Alexander Lobakin wrote:
> > > From: Xuan Zhuo
> > >
> > > This patch is used to construct skb based on page to save memory copy
> > > overhead.
> > >
> > > This function is implemented based on IFF_TX_SKB_NO_LINE
> #syz test:
> git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
> 7ef09ba11b33e371c9a8510c1f56e40aa0862c65
This crash does not have a reproducer. I cannot test it.
>
On Fri, Jan 29, 2021 at 11:04 PM Stefano Garzarella wrote:
>
> On Thu, Jan 28, 2021 at 11:11:49AM +0800, Jason Wang wrote:
> >
> >On 2021/1/27 下午4:57, Stefano Garzarella wrote:
> >>On Wed, Jan 27, 2021 at 11:33:03AM +0800, Jason Wang wrote:
> >>>
> >>>On 2021/1/20 下午7:08, Stefano Garzarella wrote:
On Thu, Jan 28, 2021 at 2:14 PM Jason Wang wrote:
>
>
> On 2021/1/28 下午2:03, Yongji Xie wrote:
> > +
> > +static const struct file_operations vduse_domain_fops = {
> > + .mmap = vduse_domain_mmap,
> > + .release = vduse_domain_release,
> > +};
> It's better to expl
On Thu, Jan 28, 2021 at 12:31 PM Jason Wang wrote:
>
>
> On 2021/1/28 上午11:52, Yongji Xie wrote:
> > On Thu, Jan 28, 2021 at 11:05 AM Jason Wang wrote:
> >>
> >> On 2021/1/27 下午5:11, Yongji Xie wrote:
> >>> On Wed, Jan 27, 2021 at 11:38 AM Jason Wang wrote:
> On 2021/1/20 下午2:52, Yongji Xie
On Thu, Jan 28, 2021 at 12:27 PM Jason Wang wrote:
>
>
> On 2021/1/27 下午4:50, Yongji Xie wrote:
> > On Tue, Jan 26, 2021 at 4:09 PM Jason Wang wrote:
> >>
> >> On 2021/1/19 下午1:07, Xie Yongji wrote:
> >>> This VDUSE driver enables implementing vDPA devices in userspace.
> >>> Both control path
On Thu, Jan 28, 2021 at 11:08 AM Jens Axboe wrote:
>
> On 1/27/21 8:04 PM, Jason Wang wrote:
> >
> > On 2021/1/27 下午5:11, Yongji Xie wrote:
> >> On Wed, Jan 27, 2021 at 11:38 AM Jason Wang wrote:
> >>>
> >>> On 2021/1/20 下午2:52, Yongji Xie wrote:
> On Wed, Jan 20, 2021 at 12:24 PM Jason Wang
On Thu, Jan 28, 2021 at 11:05 AM Jason Wang wrote:
>
>
> On 2021/1/27 下午5:11, Yongji Xie wrote:
> > On Wed, Jan 27, 2021 at 11:38 AM Jason Wang wrote:
> >>
> >> On 2021/1/20 下午2:52, Yongji Xie wrote:
> >>> On Wed, Jan 20, 2021 at 12:24 PM Jason Wang wrote:
> On 2021/1/19 下午12:59, Xie Yongji
On Tue, Jan 26, 2021 at 4:09 PM Jason Wang wrote:
>
>
> On 2021/1/19 下午1:07, Xie Yongji wrote:
> > This VDUSE driver enables implementing vDPA devices in userspace.
> > Both control path and data path of vDPA devices will be able to
> > be handled in userspace.
> >
> > In the control path, the VD
On Wed, Jan 27, 2021 at 11:51 AM Jason Wang wrote:
>
>
> On 2021/1/20 下午3:52, Yongji Xie wrote:
> > On Wed, Jan 20, 2021 at 2:24 PM Jason Wang wrote:
> >>
> >> On 2021/1/19 下午12:59, Xie Yongji wrote:
> >>> Add an opaque pointer for vhost IOTLB to store the
> >>> corresponding vma->vm_file and off
On Wed, Jan 27, 2021 at 11:38 AM Jason Wang wrote:
>
>
> On 2021/1/20 下午2:52, Yongji Xie wrote:
> > On Wed, Jan 20, 2021 at 12:24 PM Jason Wang wrote:
> >>
> >> On 2021/1/19 下午12:59, Xie Yongji wrote:
> >>> Now we have a global percpu counter to limit the recursion depth
> >>> of eventfd_signal()
On Wed, Jan 27, 2021 at 4:59 PM Stefano Garzarella wrote:
>
> On Tue, Jan 19, 2021 at 12:59:12PM +0800, Xie Yongji wrote:
> >With VDUSE, we should be able to support all kinds of virtio devices.
> >
> >Signed-off-by: Xie Yongji
> >---
> > drivers/vhost/vdpa.c | 29 +++--
>
On Tue, Jan 26, 2021 at 4:17 PM Jason Wang wrote:
>
>
> On 2021/1/19 下午1:07, Xie Yongji wrote:
> > This patch introduces a dedicated workqueue for irq injection
> > so that we are able to do some performance tuning for it.
> >
> > Signed-off-by: Xie Yongji
>
>
> If we want the split like this.
>
On Tue, Jan 26, 2021 at 4:19 PM Jason Wang wrote:
>
>
> On 2021/1/19 下午1:07, Xie Yongji wrote:
> > This VDUSE driver enables implementing vDPA devices in userspace.
> > Both control path and data path of vDPA devices will be able to
> > be handled in userspace.
> >
> > In the control path, the VDU
On Tue, Jan 26, 2021 at 4:10 PM Jason Wang wrote:
>
>
> On 2021/1/19 下午1:07, Xie Yongji wrote:
> > The module should not be unloaded if any vduse device exists.
> > So increase the module's reference count when creating vduse
> > device. And the reference count is kept until the device is
> > dest
On Wed, Jan 20, 2021 at 2:24 PM Jason Wang wrote:
>
>
> On 2021/1/19 下午12:59, Xie Yongji wrote:
> > Add an opaque pointer for vhost IOTLB to store the
> > corresponding vma->vm_file and offset on the DMA mapping.
>
>
> Let's split the patch into two.
>
> 1) opaque pointer
> 2) vma stuffs
>
OK.
>
On Wed, Jan 20, 2021 at 1:55 PM Jason Wang wrote:
>
>
> On 2021/1/19 下午12:59, Xie Yongji wrote:
> > This patches introduces SVA (Shared Virtual Addressing)
> > support for vDPA device. During vDPA device allocation,
> > vDPA device driver needs to indicate whether SVA is
> > supported by the devic
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