From 83f2b9630c5875ee872c11d98a0e26888514c1b3 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 30 Mar 2010 10:28:32 +0900 Subject: 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 Cc: Peer Chen Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 38 ++++++++++++++++++++++++++++---------- drivers/ata/ahci.h | 1 + 2 files changed, 29 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; } diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h index 111a878d9188..733def27df07 100644 --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -208,6 +208,7 @@ enum { AHCI_HFLAG_SRST_TOUT_IS_OFFLINE = (1 << 11), /* treat SRST timeout as link offline */ AHCI_HFLAG_NO_SNTF = (1 << 12), /* no sntf */ + AHCI_HFLAG_NO_FPDMA_AA = (1 << 13), /* no FPDMA AA */ /* ap->flags bits */ -- cgit v1.2.3