On Sul, 2005-02-13 at 18:51, Jeff Garzik wrote:
libata-dev now has two drivers that support PATA, pata_pdc2027x and ata_piix, and the core is getting close (DMA blacklist in, C/H/S support close).
Do you have DMA change down sorted - CRC error, drop speed and/or switch to PIO then later flip back. Thats one real horror to get right and one thats badly screwy in the current IDE code (-ac IDE can hang the box for ages, base will sometimes crash)
Error handling is -very- stupid simple right now: if we get an error, report that error in the struct request [based on your ATA -> SCSI sense conversion] back to upper layer.
It needs to be fleshed out into separate host bus / ATA bus / device errors, and handled accordingly.
Jeff
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