Re: [PATCH 11/13] PCI/P2PDMA: Add KUnit tests for ACS routing decisions

> From: Leon Romanovsky <[email protected]>
> 
> Add a KUnit suite exercising the ACS peer-to-peer routing logic:
> 
>   - pci_acs_p2pdma_decision(): the full PCIe table 6-11 truth table,
>     including the Egress Control Vector branches (bit set/clear, with and
>     without Request Redirect and Completion Redirect) that require a
>     switch implementing the Egress Control Vector and so cannot be
>     reached on commonly available hardware.
> 
>   - pci_acs_egress_port_valid(): the vector-size boundary, including the
>     "size 0 encodes 256 bits" case.
> 
>   - pci_acs_egress_ctrl_set(): driven through a fake pci_ops returning
>     canned config space, covering target Port Number extraction from
> [ ... ]
> 
> ./tools/testing/kunit/kunit.py run --arch=x86_64 \
>     --kunitconfig=/tmp/pci-acs.kunitconfig --jobs=$(nproc) pci_acs
> 
> Signed-off-by: Leon Romanovsky <[email protected]>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.dev/#/patchset/[email protected]?part=11