Re: ATA support for 4k sector size

[H. Peter Anvin]

Matthew Wilcox wrote:
> The two patches following this add support for drives which have sector
> sizes other than 512 bytes.  I haven't been able to test this as I don't
> have the hardware.
>
> Individual host drivers will have to be updated to support sizes other
> than 512 bytes.
>
> Support for logical sector sizes that differ from physical sector sizes
> depends on the READ CAPACITY 16 patch I posted in December that isn't in
> scsi-misc yet.
>
> The approach I've taken to generating the tables of which commands need
> a 512-byte transfer size and which use the drive's sector size command is
> 'innovative'.  Review is encouraged ;-)

What sector size do we report to user space for this?  I'm asking 
because logical sector size is visible in most partition formats.

	-hpa
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/