similar to: Does libvirt (will) support qemu's userspace vhost scsi and blk

Forwarded to centos mailing list -----Original Messages----- From: wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn> Sent Time: 2018-10-30 14:06:00 (Tuesday) To: "storage performance development kit" <spdk at lists.01.org> Cc: centos at centos.org, qemu-discuss at nongnu.org Subject: Re: [SPDK] VM boot failed sometimes if using vhost-user-blk with spdk I enable debug of

Sorry for the late reply, and thanks Jano for pointing out elsewhere that this didn't receive a response. On 8/12/19 5:56 AM, Li Feng wrote: > Hi Guys, > > And I want to add the vhost-user-scsi-pci/vhost-user-blk-pci support > for libvirt. > > The usage in qemu like this: > > Vhost-SCSI > -chardev socket,id=char0,path=/var/tmp/vhost.0 > -device

On 10/14/19 3:12 AM, Li Feng wrote: > Hi Cole & Michal, > > I'm sorry for my late response, I just end my journey today. > Thank your response, your suggestion is very helpful to me. > > I have added Michal in this mail, Michal helps me review my initial patchset. > (https://www.spinics.net/linux/fedora/libvir/msg191339.html) > Whoops I missed that posting, I

Cole Robinson <crobinso@redhat.com> 于2019年10月15日周二 上午1:48写道： > > On 10/14/19 3:12 AM, Li Feng wrote: > > Hi Cole & Michal, > > > > I'm sorry for my late response, I just end my journey today. > > Thank your response, your suggestion is very helpful to me. > > > > I have added Michal in this mail, Michal helps me review my initial patchset.

Hi Cole & Michal, I'm sorry for my late response, I just end my journey today. Thank your response, your suggestion is very helpful to me. I have added Michal in this mail, Michal helps me review my initial patchset. (https://www.spinics.net/linux/fedora/libvir/msg191339.html) All concern about this feature is the XML design. My original XML design exposes more details of Qemu.

Hi Guys, And I want to add the vhost-user-scsi-pci/vhost-user-blk-pci support for libvirt. The usage in qemu like this: Vhost-SCSI -chardev socket,id=char0,path=/var/tmp/vhost.0 -device vhost-user-scsi-pci,id=scsi0,chardev=char0 Vhost-BLK -chardev socket,id=char1,path=/var/tmp/vhost.1 -device vhost-user-blk-pci,id=blk0,chardev=char1 What type should I add for libvirt. Type1: <hostdev

Hi all, I got bored and implemented SCSI passthrough for the virtio-blk driver. Principle is quite simple, just put the missing fields (cdb, sense and status header) on the virtio queue and then call the SG_IO ioctl on the host. So when using '-drive file=/dev/sgXX,if=virtio,format=host_device' you can happily call any sg_XX command on the resulting vdX device. Quite neat, methinks. And

Hi all, I got bored and implemented SCSI passthrough for the virtio-blk driver. Principle is quite simple, just put the missing fields (cdb, sense and status header) on the virtio queue and then call the SG_IO ioctl on the host. So when using '-drive file=/dev/sgXX,if=virtio,format=host_device' you can happily call any sg_XX command on the resulting vdX device. Quite neat, methinks. And

When tag_set->nr_maps is 1, the block layer limits the number of hw queues by nr_cpu_ids. No matter how many hw queues are use by virtio-blk/virtio-scsi, as they both have (tag_set->nr_maps == 1), they can use at most nr_cpu_ids hw queues. In addition, specifically for pci scenario, when the 'num-queues' specified by qemu is more than maxcpus, virtio-blk/virtio-scsi would not be

On 27/03/19 15:33, Michael S. Tsirkin wrote: > Jason doesn't really have the time to review blk/scsi > patches. Paolo and Setfan agreed to help out. > > Thanks guys! > > Signed-off-by: Michael S. Tsirkin <mst at redhat.com> > > --- > > diff --git a/MAINTAINERS b/MAINTAINERS > index 95a5ebecd04f..8326d19c1681 100644 > --- a/MAINTAINERS > +++

On Thu, Jul 14, 2016 at 06:54:20PM +0300, Yaniv Kaul wrote: > Any idea what 'virt-customize' script I should use to convert from > virtio-blk (vda, vdb...) to virtio-scsi (sda, sdb...) ? You'll find that you have to recreate the initrd, else it won't boot (I'm assuming this is a Linux guest). This is somewhat complicated and involves running some commands from the

On Wed, Mar 27, 2019 at 10:33:57AM -0400, Michael S. Tsirkin wrote: > Jason doesn't really have the time to review blk/scsi > patches. Paolo and Setfan agreed to help out. > > Thanks guys! > > Signed-off-by: Michael S. Tsirkin <mst at redhat.com> > > --- There is relatively little activity in this area so I'd like to reply with Reviewed-by/Acked-by on the

Any idea what 'virt-customize' script I should use to convert from virtio-blk (vda, vdb...) to virtio-scsi (sda, sdb...) ? I've tried naively to convince libvirt to use virtio-scsi and still present it to the guest as 'vd*' - that didn't work ( <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/>

On Thu, Jul 14, 2016 at 9:03 PM, Richard W.M. Jones <rjones@redhat.com> wrote: > On Thu, Jul 14, 2016 at 06:54:20PM +0300, Yaniv Kaul wrote: > > Any idea what 'virt-customize' script I should use to convert from > > virtio-blk (vda, vdb...) to virtio-scsi (sda, sdb...) ? > > You'll find that you have to recreate the initrd, else it won't boot >

> -----Original Messages----- > From: "Steven Tardy" <sjt5atra at gmail.com> > Sent Time: 2018-02-26 10:48:48 (Monday) > To: "CentOS mailing list" <centos at centos.org> > Cc: > Subject: Re: [CentOS] How to update modules in iniramfs fastly > > On Sun, Feb 25, 2018 at 8:29 PM wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn> > wrote:

Jason doesn't really have the time to review blk/scsi patches. Paolo and Setfan agreed to help out. Thanks guys! Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- diff --git a/MAINTAINERS b/MAINTAINERS index 95a5ebecd04f..8326d19c1681 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -16247,7 +16247,7 @@ F: drivers/char/virtio_console.c F: include/linux/virtio_console.h F:

Jason doesn't really have the time to review blk/scsi patches. Paolo and Setfan agreed to help out. Thanks guys! Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- diff --git a/MAINTAINERS b/MAINTAINERS index 95a5ebecd04f..8326d19c1681 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -16247,7 +16247,7 @@ F: drivers/char/virtio_console.c F: include/linux/virtio_console.h F:

Fine, it seems that upgrade kernel is the only effective solution. > On 18 Oct 2017, at 10:00 PM, Stephen John Smoogen <smooge at gmail.com> wrote: > > On 18 October 2017 at 04:50, wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn> wrote: >> I googled this issue and found so many people have encountered, but most of >> them just said "the newer kernel doesn't

> -----Original Message----- > From: Stefan Hajnoczi [mailto:stefanha at gmail.com] > Sent: Tuesday, March 28, 2017 4:20 AM > To: Liu, Changpeng <changpeng.liu at intel.com> > Cc: virtio-dev at lists.oasis-open.org; virtualization at lists.linux-foundation.org; linux- > kernel at vger.kernel.org; hch at lst.de; qemu-devel at nongnu.org > Subject: Re: [PATCH] virtio-blk:

> -----Original Message----- > From: Stefan Hajnoczi [mailto:stefanha at gmail.com] > Sent: Tuesday, March 28, 2017 4:20 AM > To: Liu, Changpeng <changpeng.liu at intel.com> > Cc: virtio-dev at lists.oasis-open.org; virtualization at lists.linux-foundation.org; linux- > kernel at vger.kernel.org; hch at lst.de; qemu-devel at nongnu.org > Subject: Re: [PATCH] virtio-blk: