Re: [PATCH v9 04/27] cxl/pci: add check for validating capabilities
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From: Jonathan Cameron <hidden>
Date: 2025-01-02 14:38:17
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linux-cxl
On Mon, 30 Dec 2024 21:44:22 +0000 alejandro.lucero-palau@amd.com wrote:
From: Alejandro Lucero <redacted> During CXL device initialization supported capabilities by the device are discovered. Type3 and Type2 devices have different mandatory capabilities and a Type2 expects a specific set including optional capabilities. Add a function for checking expected capabilities against those found during initialization and allow those mandatory/expected capabilities to be a subset of the capabilities found. Rely on this function for validating capabilities instead of when CXL regs are probed. Signed-off-by: Alejandro Lucero <redacted> Reviewed-by: Zhi Wang <zhiw@nvidia.com>
Reviewed-by: Jonathan Cameron <redacted>