On Tue, 03 May 2011 11:04:12 -0400 Mark Lord <kernel@xxxxxxxxxxxx> wrote: > On 11-05-02 02:52 PM, Alan Cox wrote: > > > > The queue depth and tag limits come from the SATA standard and also leak > > fairly comprehensively into the AHCI spec so not unless the hardware has > > extensions for it and is merely faked SATA (and if you are faking SATA > > you have to wonder why if your goal is max performance) > > > The reason to "fake" SATA and/or ATA is unchanged since the 1990s: > so that the system BIOS can boot from the device, and the operating system > can work up to the point where it finally loads hardware-specific drivers. The BIOS emulation is for legacy IDE style interfaces not AHCI. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
