lkml.org 
[lkml]   [2006]   [Jan]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
DateTue, 17 Jan 2006 14:39:44 -0500
FromJeff Garzik <>
SubjectRe: Adaptec 1420SA issues with MSI
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


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-01-17 20:42    [from the cache]
©2003-2010