Re: [CFT] Bus mastering support for IDE CDROM audio

Robert Love
2002-01-27T21:35:14Z

On Sun, 2002-01-27 at 16:25, Jens Axboe wrote:

> sr already uses DMA for all transfers, so no performance gain was to be
> expected there. problem is ide-cd using pio for all packet command data
> transfers currently (modulo fs read write requests, of course)
>
> not a whole lot of pio aic7xxx adapters out there :-)

Right. The patch touches the generic cdrom driver, however, so Andrew
asked for testing with SCSI readers. Thankfully it works; of course
performance didn't go up.

Robert Love