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RE: [Xen-devel] how can native driver response quickly for low FIFO devi
| To: | "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] how can native driver response quickly for low FIFO device |
| From: | "Dong, Eddie" <eddie.dong@xxxxxxxxx> |
| Date: | Thu, 25 May 2006 22:21:43 +0800 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 25 May 2006 07:22:20 -0700 |
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| Thread-index: | AcaABA4kw0cNlSQLQSe8bS4ZDgrJswAAMMpQ |
| Thread-topic: | [Xen-devel] how can native driver response quickly for low FIFO device |
Keir Fraser wrote: > On 25 May 2006, at 14:53, Dong, Eddie wrote: > > The bytes are taken from the UART in interrupt context inside Xen. > Data will only build up inside the UART FIFO if interrupts are > disabled for long periods. > Oo, understand UART is handled by Xen, Is this because of this reason? or for debug/console use, and how about other devices? If a user has an PCI card with 8 UART in the box, will we have problem? thx,eddie _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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