Re: [PATCH kernel 4/4] pci: Define Integrity and Data Encryption (IDE) extended capability

Bjorn Helgaas
2024-02-08T22:02:03Z

On Thu, Feb 01, 2024 at 05:02:28PM +1100, Alexey Kardashevskiy wrote:
> PCIe 6.0 introduces the "Integrity & Data Encryption (IDE)" feature which
> adds a new capability with id=0x30.
>
> Add the new id to the list of capabilities.
>
> Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
> ---
>
> This only adds an id. The rest is here:
> https://github.com/aik/pciutils/commit/ide

We can add this #define when we have need for it in Linux, so let's
hold it until that need appears.

> Not sure how much of that we want in the Linux.
> ---
> include/uapi/linux/pci_regs.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
> index e60b4df1f7d9..b8d447b2c793 100644
> --- a/include/uapi/linux/pci_regs.h
> +++ b/include/uapi/linux/pci_regs.h
> @@ -743,7 +743,8 @@
> #define PCI_EXT_CAP_ID_PL_16GT 0x26 /* Physical Layer 16.0 GT/s */
> #define PCI_EXT_CAP_ID_PL_32GT 0x2A /* Physical Layer 32.0 GT/s */
> #define PCI_EXT_CAP_ID_DOE 0x2E /* Data Object Exchange */
> -#define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_DOE
> +#define PCI_EXT_CAP_ID_IDE 0x30 /* Integrity and Data Encryption (IDE) */
> +#define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_IDE
>
> #define PCI_EXT_CAP_DSN_SIZEOF 12
> #define PCI_EXT_CAP_MCAST_ENDPOINT_SIZEOF 40
> --
> 2.41.0
>