Messages in this thread | | | Date | Thu, 02 Nov 2006 00:12:26 -0500 | From | Jeff Garzik <> | Subject | Promise 20319 chipset specs opened |
| |
Promise has given me permission to post hardware programming info for one of their chips (Linux driver: sata_promise), PDC20319. This also marks the first open chipset for Promise (AFAIK), so let's give them a round of applause.
The PDC20319 is a reasonably representative example of the hardware programming interface covered by sata_promise. Kernel developers wishing to work on sata_promise can study this doc, and deduce how the two-port PDC2037x chips work.
In addition to describing the "packet" format for ATA and ATAPI commands, this doc also describes how to use the chip's XOR RAID-assist features. I think it would be cool if someone so motivated found a way to use this efficiently under Linux.
The doc: http://gkernel.sourceforge.net/specs/promise/pdc20319.pdf.bz2
I have also updated the list open chipsets and developer resources on linux-ata.org: http://linux-ata.org/driver-status.html#open_chipsets http://linux-ata.org/devel.html
Have fun!
Jeff
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |