On 03/28/2010 09:33 PM, Tejun Heo wrote:
It turns out different generations of MCPs have differing quirks.
* MCP 65-73 : FPDMA AA broken, lies about PMP support, forgets to report NCQ
* MCP 77-79 : FPDMA AA broken, lies about PMP support
* MCP 89 : FPDMA AA broken
Instead of turngin off FPDMA AA on all NVIDIAs, implement
HFLAG_NO_FPDMA_AA, define additional board IDs and apply necessary
quirks.
This fixes bko#15481 and the list of quirks is verified by Peer Chen.
http://bugzilla.kernel.org/show_bug.cgi?id=15481
Signed-off-by: Tejun Heo<tj@xxxxxxxxxx>
Cc: Peer Chen<pchen@xxxxxxxxxx>
---
drivers/ata/ahci.c | 38 ++++++++++++++++++++++++++++----------
1 file changed, 28 insertions(+), 10 deletions(-)
ACK in theory, but NAK due to failed build:
drivers/ata/ahci.c:137: error: ‘AHCI_HFLAG_NO_FPDMA_AA’ undeclared here
(not in a function)
drivers/ata/ahci.c: In function ‘ahci_init_one’:
drivers/ata/ahci.c:1128: error: invalid operands to binary & (have
‘unsigned int’ and ‘const struct ata_port_info *’)
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