diff options
| author | Tejun Heo <tj@kernel.org> | 2010-03-30 03:28:32 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-05-14 23:08:02 +0200 |
| commit | 83f2b9630c5875ee872c11d98a0e26888514c1b3 (patch) | |
| tree | 434dedfdcca76d8fdb7cdb919ac1d149b349e90c /drivers/ata/ahci.c | |
| parent | pata_mpc52xx: reduce code size by simple change of constant data types (diff) | |
| download | linux-83f2b9630c5875ee872c11d98a0e26888514c1b3.tar.xz linux-83f2b9630c5875ee872c11d98a0e26888514c1b3.zip | |
ahci: implement AHCI_HFLAG_NO_FPDMA_AA and update NV quirks
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@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/ahci.c')
| -rw-r--r-- | drivers/ata/ahci.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index ec1221879f9a..c44d11237db4 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -63,6 +63,8 @@ enum board_ids { /* board IDs for specific chipsets in alphabetical order */ board_ahci_mcp65, + board_ahci_mcp77, + board_ahci_mcp89, board_ahci_mv, board_ahci_sb600, board_ahci_sb700, /* for SB700 and SB800 */ @@ -72,9 +74,7 @@ enum board_ids { board_ahci_mcp_linux = board_ahci_mcp65, board_ahci_mcp67 = board_ahci_mcp65, board_ahci_mcp73 = board_ahci_mcp65, - board_ahci_mcp77 = board_ahci, - board_ahci_mcp79 = board_ahci, - board_ahci_mcp89 = board_ahci, + board_ahci_mcp79 = board_ahci_mcp77, }; static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); @@ -135,7 +135,24 @@ static const struct ata_port_info ahci_port_info[] = { /* by chipsets */ [board_ahci_mcp65] = { - AHCI_HFLAGS (AHCI_HFLAG_YES_NCQ), + AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP | + AHCI_HFLAG_YES_NCQ), + .flags = AHCI_FLAG_COMMON, + .pio_mask = ATA_PIO4, + .udma_mask = ATA_UDMA6, + .port_ops = &ahci_ops, + }, + [board_ahci_mcp77] = + { + AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP), + .flags = AHCI_FLAG_COMMON, + .pio_mask = ATA_PIO4, + .udma_mask = ATA_UDMA6, + .port_ops = &ahci_ops, + }, + [board_ahci_mcp89] = + { + AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, @@ -1103,12 +1120,13 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) /* prepare host */ if (hpriv->cap & HOST_CAP_NCQ) { pi.flags |= ATA_FLAG_NCQ; - /* Auto-activate optimization is supposed to be supported on - all AHCI controllers indicating NCQ support, but it seems - to be broken at least on some NVIDIA MCP79 chipsets. - Until we get info on which NVIDIA chipsets don't have this - issue, if any, disable AA on all NVIDIA AHCIs. */ - if (pdev->vendor != PCI_VENDOR_ID_NVIDIA) + /* + * Auto-activate optimization is supposed to be + * supported on all AHCI controllers indicating NCQ + * capability, but it seems to be broken on some + * chipsets including NVIDIAs. + */ + if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA)) pi.flags |= ATA_FLAG_FPDMA_AA; } |