On Fri, Nov 20, 2009 at 09:45:23PM -0500, Martin K. Petersen wrote:
> * with the unmap bit set.
> */
> - if (ata_id_has_trim(args->id))
> + if (ata_id_has_trim(args->id)) {
> + put_unaligned_be32(65535 * 512 / 8, &rbuf[20]);
> put_unaligned_be32(1, &rbuf[28]);
My reading of SPC is that the max unmap size only makes sense for
devices supporting UNMAP, while the SATL for now only supports WRITE
SAME with the unmap bit.
> - rbuf[14] |= 0x80;
> + if (ata_id_has_trim(args->id)) {
> + rbuf[14] |= 0x80; /* TPE */
> +
> + if (ata_id_has_zero_after_trim(args->id))
> + rbuf[14] |= 0x40; /* TPRZ */
Looks good.
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