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Re: [Xen-devel] jumbo frames
| To: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] jumbo frames |
| From: | Kip Macy <kmacy@xxxxxxxxxx> |
| Date: | Tue, 10 May 2005 23:27:23 -0700 (PDT) |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 11 May 2005 06:26:58 +0000 |
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On Wed, 11 May 2005, Keir Fraser wrote:
>
> On 11 May 2005, at 01:14, Kip Macy wrote:
>
> > What is the status of jumbo frame support in dom0 and domU? Unless
> > something has changed I know it isn't supported in domU, but shouldn't
> > it just work in dom0?
>
> I think it'll just work, but it's untested. If the jumbo area spans
> multiple memory pages then it needs to be allocated with something like
> dma_alloc_coherent, or be represented by a fragmented skbuff. (i.e.,
> hopefully the network stack and drivers don't assume that kmalloc()
> always return physically contiguous memory extents).
>
What all would need to change to support it for domUs?
-Kip
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