Hi, all
While I check the maillist, I found a patch:
[dpdk-dev] [PATCH v3] vfio: Fix overflow while assigning vfio BAR region
offset and size
This patch has fixed this issue :), and will be merged.
This patch is same with mine.
So I will not post the patch again.
Thanks,
Michael
On
Hi, Stephen
I have found out the root cause of this bug, and generate a patch.
Will send out later after :)
Thanks,
Michael
On 7/11/2015 1:24 AM, Stephen Hemminger wrote:
> On Fri, 10 Jul 2015 07:54:10 +
> "Qiu, Michael" wrote:
>
>> Hi, Stephen
>>
>> This patch does not work for fm10k
Hi, Stephen
This patch does not work for fm10k with vfio, see error below:
EAL: PCI device :84:00.0 on NUMA socket 1
EAL: probe driver: 8086:15a4 rte_pmd_fm10k
EAL: PCI memory mapped at 0x7f198000
EAL: Trying to map BAR 2 that contains the MSI-X table. Trying offsets:
:,
The FM10K driver has 3 BARS numbered 0, 4, and 8. But the kernel
VFIO driver only allows mapping 0-5 anything bigger than that will
return -EINVAL (see kernel source vfio_pci.c:vfio_pci_mmap).
The workaround is to limit the DPDK EAL VFIO support only map
the regions that will work. The FM10K
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