Ack.
2012/12/19 Andrew Cooks <aco...@gmail.com>
> On Wed, Dec 19, 2012 at 9:41 PM, Chu Ying <gm.y...@gmail.com> wrote:
> > On 2012-12-19, at 18:58, Andrew Cooks <aco...@gmail.com> wrote:
> >
> >> This is my second attempt to make Marvell 88SE91xx SATA controllers
> work when IOMMU is enabled.[1][2]
> >> +static const struct pci_dev_dma_source_funcs {
> >> + u16 vendor;
> >> + u16 device;
> >> + u8 func_map; /* bit map. lsb is fn 0. */
> >> +} pci_dev_dma_source_funcs[] = {
> >> + {0x1b4b, 0x9172, (1<<0)|(1<<1)},
> >> + { 0 },
> >> +};
> >
> > Can you confirm function 0 should be marked? Per my PCIe trace, I found
> no function 0 involved in DMA access?
> >
>
> Yes. The attached patch disables function 0 for the 0x9172 device. The
> attached dmesg output shows the resulting change at time 1.920163 and
> fault at time 2.265757.
>
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