On 9/30/21 2:19 PM, Jean-Philippe Brucker wrote:
On Thu, Sep 30, 2021 at 10:26:35AM +0530, Vivek Kumar Gautam wrote:
I'm not sure why we made it 32-bit in Linux UAPI, it's a little wasteful.
PCIe PRGI is 9-bits and SMMU STAG is 16-bits. Since the scope of the grpid
is the endpoint, 16-bit means 64k in-flight faults per endpoint, which
seems more than enough.
Right, I will update this to 16-bits field. It won't be okay to update the
iommu uAPI now, right?
Since there is no UAPI transport for the fault request/response at the
moment, it should be possible to update it.
Righty! I will add a patch for that too then.
Thanks & regards
Vivek
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