On Wed, Mar 16 2005, Christoph Hellwig wrote: > On Wed, Mar 16, 2005 at 05:53:39PM +0100, Jens Axboe wrote: > > The list doesn't really need dma mapping at that point, the problem here > > is that the driver needs to punt to pio mode because of foo. So calling > > pci/dma_map_* is pointless, since the CPU will have to do the transfer > > anyways. What the driver is really looking for at this point, is a way > > to map the pages in the sglist to a virtual address. > > Given that there's quite a few cases of this "problem" it would be nice > to have common helpers for it. Especially as it's really difficult when > we allow merging of sg list entries
I thought about that when writing the above, but is there really more than one case for SCSI drivers? If there is, sure lets add the helpers. But I would consider it a quite rare occurence, I've never seen it before. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
