On Tue, Jun 23, 2020 at 07:57:15PM -0700, Keith Busch wrote:
> On Tue, Jun 23, 2020 at 09:24:32PM +0800, Baolin Wang wrote:
> > +void nvme_set_arbitration_burst(struct nvme_ctrl *ctrl)
> > +{
> > + u32 result;
> > + int status;
> > +
> > + if (!ctrl->rab)
> > + return;
> > +
> > +
On Tue, Jun 23, 2020 at 09:24:32PM +0800, Baolin Wang wrote:
> +void nvme_set_arbitration_burst(struct nvme_ctrl *ctrl)
> +{
> + u32 result;
> + int status;
> +
> + if (!ctrl->rab)
> + return;
> +
> + /*
> + * The Arbitration Burst setting indicates the maximum
On Tue, Jun 23, 2020 at 07:51:35PM -0700, Keith Busch wrote:
> On Wed, Jun 24, 2020 at 09:34:08AM +0800, Baolin Wang wrote:
> > OK, I understaood your concern. Now we will select the RR arbitration as
> > default
> > in nvme_enable_ctrl(), but for some cases, we will not set the arbitration
> >
On Wed, Jun 24, 2020 at 09:34:08AM +0800, Baolin Wang wrote:
> OK, I understaood your concern. Now we will select the RR arbitration as
> default
> in nvme_enable_ctrl(), but for some cases, we will not set the arbitration
> burst
> values from userspace, and we still want to use the defaut
On Tue, Jun 23, 2020 at 11:01:08AM -0700, Keith Busch wrote:
> On Tue, Jun 23, 2020 at 10:39:01AM -0700, Sagi Grimberg wrote:
> >
> > > > From the NVMe spec, "In order to make efficient use of the non-volatile
> > > > memory, it is often advantageous to execute multiple commands from a
> > > >
On Tue, Jun 23, 2020 at 10:39:01AM -0700, Sagi Grimberg wrote:
>
> > > From the NVMe spec, "In order to make efficient use of the non-volatile
> > > memory, it is often advantageous to execute multiple commands from a
> > > Submission Queue in parallel. For Submission Queues that are using
> > >
From the NVMe spec, "In order to make efficient use of the non-volatile
memory, it is often advantageous to execute multiple commands from a
Submission Queue in parallel. For Submission Queues that are using
weighted round robin with urgent priority class or round robin
arbitration, host
On Tue, Jun 23, 2020 at 09:24:32PM +0800, Baolin Wang wrote:
> From the NVMe spec, "In order to make efficient use of the non-volatile
> memory, it is often advantageous to execute multiple commands from a
> Submission Queue in parallel. For Submission Queues that are using
> weighted round robin
>From the NVMe spec, "In order to make efficient use of the non-volatile
memory, it is often advantageous to execute multiple commands from a
Submission Queue in parallel. For Submission Queues that are using
weighted round robin with urgent priority class or round robin
arbitration, host software
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