[Xen-devel] Feature control on PV devices

2017-09-07 Thread Joao Martins
Hey! We wanted to brought up this small proposal regarding the lack of parameterization on PV devices on Xen. Currently users don't have a way for enforce and control what features/queues/etc the backend provides. So far there's only global parameters on backends, and specs do not mention anythin

Re: [Xen-devel] Feature control on PV devices

2017-09-19 Thread Konrad Rzeszutek Wilk
On Thu, Sep 14, 2017 at 05:08:18PM +0100, Joao Martins wrote: > [ Realized that I didn't CC the maintainers, > so doing that now, +Linux folks +PV interfaces czar > Sorry for the noise! ] > > On 09/08/2017 09:49 AM, Joao Martins wrote: > > [Forgot two important details regarding Xenbus states]

Re: [Xen-devel] Feature control on PV devices

2017-09-19 Thread Joao Martins
On 09/18/2017 08:59 PM, Konrad Rzeszutek Wilk wrote: > On Thu, Sep 14, 2017 at 05:08:18PM +0100, Joao Martins wrote: >> [ Realized that I didn't CC the maintainers, >> so doing that now, +Linux folks +PV interfaces czar >> Sorry for the noise! ] >> >> On 09/08/2017 09:49 AM, Joao Martins wrote:

Re: [Xen-devel] Feature control on PV devices

2017-09-08 Thread Joao Martins
[Forgot two important details regarding Xenbus states] On 09/07/2017 05:53 PM, Joao Martins wrote: > Hey! > > We wanted to brought up this small proposal regarding the lack of > parameterization on PV devices on Xen. > > Currently users don't have a way for enforce and control what > features/qu

Re: [Xen-devel] Feature control on PV devices

2017-09-14 Thread Joao Martins
[ Realized that I didn't CC the maintainers, so doing that now, +Linux folks +PV interfaces czar Sorry for the noise! ] On 09/08/2017 09:49 AM, Joao Martins wrote: > [Forgot two important details regarding Xenbus states] > On 09/07/2017 05:53 PM, Joao Martins wrote: >> Hey! >> >> We wanted to

Re: [Xen-devel] Feature control on PV devices

2017-09-14 Thread Wei Liu
On Thu, Sep 07, 2017 at 05:53:54PM +0100, Joao Martins wrote: > Hey! > > We wanted to brought up this small proposal regarding the lack of > parameterization on PV devices on Xen. > > Currently users don't have a way for enforce and control what > features/queues/etc the backend provides. So far

Re: [Xen-devel] Feature control on PV devices

2017-09-14 Thread Joao Martins
On 09/14/2017 05:10 PM, Wei Liu wrote: > On Thu, Sep 07, 2017 at 05:53:54PM +0100, Joao Martins wrote: >> Hey! >> >> We wanted to brought up this small proposal regarding the lack of >> parameterization on PV devices on Xen. >> >> Currently users don't have a way for enforce and control what >> fea

Re: [Xen-devel] Feature control on PV devices

2017-09-15 Thread Wei Liu
On Thu, Sep 14, 2017 at 05:18:44PM +0100, Joao Martins wrote: > On 09/14/2017 05:10 PM, Wei Liu wrote: > > On Thu, Sep 07, 2017 at 05:53:54PM +0100, Joao Martins wrote: > >> Hey! > >> > >> We wanted to brought up this small proposal regarding the lack of > >> parameterization on PV devices on Xen.

Re: [Xen-devel] Feature control on PV devices

2017-09-15 Thread Juergen Gross
On 15/09/17 13:19, Wei Liu wrote: > On Thu, Sep 14, 2017 at 05:18:44PM +0100, Joao Martins wrote: >> On 09/14/2017 05:10 PM, Wei Liu wrote: >>> On Thu, Sep 07, 2017 at 05:53:54PM +0100, Joao Martins wrote: Hey! We wanted to brought up this small proposal regarding the lack of pa

Re: [Xen-devel] Feature control on PV devices

2017-09-15 Thread Wei Liu
On Fri, Sep 15, 2017 at 01:34:49PM +0200, Juergen Gross wrote: > > Backends reads and seeds with (and assuming it passes backend validation > ofc): > > /local/domain/0/backend/vif/8/0/multi-queue-max-queues = 2 > /local/domain/0/backend/vbd/8/51713/multi-queue-max-que

Re: [Xen-devel] Feature control on PV devices

2017-09-15 Thread Joao Martins
On 09/15/2017 12:34 PM, Juergen Gross wrote: > On 15/09/17 13:19, Wei Liu wrote: >> On Thu, Sep 14, 2017 at 05:18:44PM +0100, Joao Martins wrote: >>> On 09/14/2017 05:10 PM, Wei Liu wrote: On Thu, Sep 07, 2017 at 05:53:54PM +0100, Joao Martins wrote: > Hey! > > We wanted to brought