On 2020-01-31 5:46 pm, Eric Dumazet wrote:
On Fri, Jan 31, 2020 at 9:43 AM Robin Murphy wrote:
On 31/01/2020 2:42 pm, Eric Dumazet wrote:
On Fri, Jan 31, 2020 at 4:30 AM Robin Murphy wrote:
...and when that represents ~5% of the total system RAM it is a *lot*
less reasonable than even
Hi Alex,
Sorry I missed this part in the previous reply. Comments below.
On Wed, 29 Jan 2020 15:19:51 -0700
Alex Williamson wrote:
> Also, is the 12-bytes of padding in struct iommu_gpasid_bind_data
> excessive with this new versioning scheme? Per rule #2 I'm not sure
> if we're allowed to
Hi Baolu,
Thanks for the review, my comments inline.
On Thu, 30 Jan 2020 15:22:09 +0800
Lu Baolu wrote:
> Hi Jacob,
>
> On 2020/1/29 14:01, Jacob Pan wrote:
> > When supporting guest SVA with emulated IOMMU, the guest PASID
> > table is shadowed in VMM. Updates to guest vIOMMU PASID table
> >
On Wed, 29 Jan 2020 15:19:51 -0700
Alex Williamson wrote:
> On Wed, 29 Jan 2020 14:40:46 -0700
> Alex Williamson wrote:
>
> > On Tue, 28 Jan 2020 22:02:04 -0800
> > Jacob Pan wrote:
> >
> > > IOMMU UAPI can be extended in the future by adding new
> > > fields at the end of each user data
On Wed, 29 Jan 2020 14:40:46 -0700
Alex Williamson wrote:
> On Tue, 28 Jan 2020 22:02:04 -0800
> Jacob Pan wrote:
>
> > IOMMU UAPI can be extended in the future by adding new
> > fields at the end of each user data structure. Since we use
> > a unified UAPI version for compatibility checking,
On Fri, Jan 31, 2020 at 9:43 AM Robin Murphy wrote:
>
> On 31/01/2020 2:42 pm, Eric Dumazet wrote:
> > On Fri, Jan 31, 2020 at 4:30 AM Robin Murphy wrote:
> >>
> >> ...and when that represents ~5% of the total system RAM it is a *lot*
> >> less reasonable than even 12KB. As I said, it's great to
On 31/01/2020 2:42 pm, Eric Dumazet wrote:
On Fri, Jan 31, 2020 at 4:30 AM Robin Murphy wrote:
...and when that represents ~5% of the total system RAM it is a *lot*
less reasonable than even 12KB. As I said, it's great to make a debug
option more efficient such that what it observes is more
On Fri, Jan 31, 2020 at 4:30 AM Robin Murphy wrote:
>
> ...and when that represents ~5% of the total system RAM it is a *lot*
> less reasonable than even 12KB. As I said, it's great to make a debug
> option more efficient such that what it observes is more representative
> of the non-debug
Hi Christoph,
On 30/01/2020 18.40, Christoph Hellwig wrote:
> On Thu, Jan 30, 2020 at 03:04:37PM +0200, Peter Ujfalusi via iommu wrote:
>> On 30/01/2020 9.53, Christoph Hellwig wrote:
>>> [skipping the DT bits, as I'm everything but an expert on that..]
>>>
>>> On Mon, Jan 27, 2020 at 04:00:30PM
Hi Christoph,
On 30/01/2020 18.40, Christoph Hellwig wrote:
> On Thu, Jan 30, 2020 at 03:04:37PM +0200, Peter Ujfalusi via iommu wrote:
>> On 30/01/2020 9.53, Christoph Hellwig wrote:
>>> [skipping the DT bits, as I'm everything but an expert on that..]
>>>
>>> On Mon, Jan 27, 2020 at 04:00:30PM
Hi Christoph,
On 30/01/2020 18.40, Christoph Hellwig wrote:
> On Thu, Jan 30, 2020 at 03:04:37PM +0200, Peter Ujfalusi via iommu wrote:
>> On 30/01/2020 9.53, Christoph Hellwig wrote:
>>> [skipping the DT bits, as I'm everything but an expert on that..]
>>>
>>> On Mon, Jan 27, 2020 at 04:00:30PM
On 2020-01-30 8:14 pm, Eric Dumazet via iommu wrote:
Networking drivers very often have to replace one page with
another for their RX ring buffers.
A multi-queue NIC will severly hit a contention point
in dma-debug while grabbing free_entries_lock spinlock.
Adding a one entry per-cpu cache
Hi Alex,
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Thursday, January 30, 2020 7:57 AM
> To: Liu, Yi L
> Subject: Re: [RFC v3 4/8] vfio/type1: Add
> VFIO_NESTING_GET_IOMMU_UAPI_VERSION
>
> On Wed, 29 Jan 2020 04:11:48 -0800
> "Liu, Yi L" wrote:
>
> > From: Liu Yi L
>
Hi Alex,
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Thursday, January 30, 2020 7:57 AM
> To: Liu, Yi L
> Subject: Re: [RFC v3 3/8] vfio: Reclaim PASIDs when application is down
>
> On Wed, 29 Jan 2020 04:11:47 -0800
> "Liu, Yi L" wrote:
>
> > From: Liu Yi L
> >
> >
Hi Alex,
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Thursday, January 30, 2020 7:56 AM
> To: Liu, Yi L
> Subject: Re: [RFC v3 1/8] vfio: Add VFIO_IOMMU_PASID_REQUEST(alloc/free)
>
> On Wed, 29 Jan 2020 04:11:45 -0800
> "Liu, Yi L" wrote:
>
> > From: Liu Yi L
> >
> >
On 2020-01-31 12:17 am, Eric Dumazet wrote:
On Thu, Jan 30, 2020 at 3:46 PM Robin Murphy wrote:
Hi Eric,
On 2020-01-30 7:10 pm, Eric Dumazet via iommu wrote:
Increasing the size of dma_entry_hash size by 327680 bytes
has reached some bootloaders limitations.
[ That might warrant some
On 2020-01-31 9:06 am, Geert Uytterhoeven wrote:
Hi Robin,
On Fri, Jan 31, 2020 at 12:46 AM Robin Murphy wrote:
On 2020-01-30 7:10 pm, Eric Dumazet via iommu wrote:
Increasing the size of dma_entry_hash size by 327680 bytes
has reached some bootloaders limitations.
[ That might warrant
Hi Robin,
On Fri, Jan 31, 2020 at 12:46 AM Robin Murphy wrote:
> On 2020-01-30 7:10 pm, Eric Dumazet via iommu wrote:
> > Increasing the size of dma_entry_hash size by 327680 bytes
> > has reached some bootloaders limitations.
>
> [ That might warrant some further explanation - I don't quite
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