Messages in this thread | | | Date | Thu, 13 Jun 2002 12:57:53 +0400 | From | Andrey Savochkin <> | Subject | Re: NAPI for eepro100 |
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On Wed, Jun 12, 2002 at 04:05:32PM -0700, David S. Miller wrote: > From: Jeff Garzik <jgarzik@mandrakesoft.com> > Date: Wed, 12 Jun 2002 19:00:00 -0400 > > for the 'mips' patch, it looks > like the arch maintainer(s) need to fix the PCI DMA support... > > No, it's worse than that. > > See how non-consistent memory is used by the eepro100 driver > for descriptor bits? The skb->tail bits? > > That is very problematic.
What's the problem? If it isn't allowed to do, then what is the meaning of PCI_DMA_BIDIRECTIONAL mappings?
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