Messages in this thread |  | | | Date | Tue, 17 Jan 2006 14:39:44 -0500 | | From | Jeff Garzik <> | | Subject | Re: Adaptec 1420SA issues with MSI |
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Andrew Morton wrote: > Andi says "It's more likely a hardware bug that needs to be handled by the > driver maintainer. sata_mv has an pci_enable_msi(). Hardware that reports > MSI capability but breaks when it's actually used is not unheard of." > > -sata_mv 0000:00:0a.0: 32 slots 4 ports unknown mode IRQ via MSI > -ata1: SATA max UDMA/133 cmd 0x0 ctl 0xE0A22120 bmdma 0x0 irq 177 > -ata2: SATA max UDMA/133 cmd 0x0 ctl 0xE0A24120 bmdma 0x0 irq 177 > -ata3: SATA max UDMA/133 cmd 0x0 ctl 0xE0A26120 bmdma 0x0 irq 177 > -ata4: SATA max UDMA/133 cmd 0x0 ctl 0xE0A28120 bmdma 0x0 irq 177 > +sata_mv 0000:00:0a.0: 32 slots 4 ports unknown mode IRQ via INTx > +ata1: SATA max UDMA/133 cmd 0x0 ctl 0xE0A22120 bmdma 0x0 irq 18 > +ata2: SATA max UDMA/133 cmd 0x0 ctl 0xE0A24120 bmdma 0x0 irq 18 > +ata3: SATA max UDMA/133 cmd 0x0 ctl 0xE0A26120 bmdma 0x0 irq 18 > +ata4: SATA max UDMA/133 cmd 0x0 ctl 0xE0A28120 bmdma 0x0 irq 18 > > It seems strange that pci_enable_msi() succeeded if the device is not > MSI-capable?
See http://lkml.org/lkml/2006/1/17/145
pci_enable_msi() has a problem where it succeeds when it should not, but also, sata_mv is still missing some errata workarounds that could be affecting MSI platforms.
Jeff
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