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Re: [Xen-devel] 3.0.4 (and earlier): skbuff_ctor() use of xen_create_con
| To: | Jan Beulich <jbeulich@xxxxxxxxxx>, David Edmondson <dme@xxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] 3.0.4 (and earlier): skbuff_ctor() use of xen_create_contiguous_region() |
| From: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Date: | Fri, 09 Mar 2007 14:08:45 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 09 Mar 2007 06:08:02 -0800 |
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| Thread-index: | AcdiVHMHsYDWVM5HEduPNwAX8io7RQ== |
| Thread-topic: | [Xen-devel] 3.0.4 (and earlier): skbuff_ctor() use of xen_create_contiguous_region() |
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On 9/3/07 12:45, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: > I understand that, but what I wanted clarification on is whether this is > only for performance, not for correctness (and performance would still > suffer if the allocation turns out to be beyond the physical reach of the > particular NIC). Yes, and yes (specifically primarily the jumbo-frame receive case, as described in my previous email). Thus you may want to consider keeping the patch in your own kernel. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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