PCI: Add pci_find_dvsec_capability to find designated VSEC

Add pci_find_dvsec_capability to locate a Designated Vendor-Specific
Extended Capability with the specified Vendor ID and Capability ID.

The Designated Vendor-Specific Extended Capability (DVSEC) allows one or
more "vendor" specific capabilities that are not tied to the Vendor ID
of the PCI component. Where the DVSEC Vendor may be a standards body
like CXL.

Cc: David E. Box <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Andrew Donnellan <[email protected]>
Cc: Lu Baolu <[email protected]>
Reviewed-by: Frederic Barrat <[email protected]>
Signed-off-by: Ben Widawsky <[email protected]>
Reviewed-by: Andrew Donnellan <[email protected]>
Acked-by: Bjorn Helgaas <[email protected]>
Tested-by: Kan Liang <[email protected]>
Signed-off-by: Kan Liang <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Link: https://lore.kernel.org/r/163379787943.692348.6814373487017444007.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <[email protected]>

0 files changed, 0 insertions, 0 deletions