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    SubjectRe: [PATCH RFC] ahci: fix SB600 h/w errata issue
    Jeff Garzik wrote:
    > I haven't seen anyone work on the recent SB600 errata, where the
    > hardware does not like 256-length PRD entries.
    >
    > Is this correct, AMD folks?
    >
    > It hurts performance on SB600, but it is more important to get a
    > correct patch eliminating the data corruption/lockups, and then later
    > on tune for performance.
    >
    > We simply limit each command to a maximum of 255 sectors, on SB600.
    >
    > Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
    > ---
    > drivers/ata/ahci.c | 14 +++++++++++++-
    > 1 file changed, 13 insertions(+), 1 deletion(-)

    Based on Henry's response, I'm going to assume AMD approves of this patch...




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