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Merge branch 'pci/doe'

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- Rename DOE 'protocol' to 'feature' to follow spec terminology (Alistair
  Francis)

- Expose supported DOE features via sysfs (Alistair Francis)

- Allow DOE support to be enabled even if CXL isn't enabled (Alistair
  Francis)

* pci/doe:
  PCI/DOE: Allow enabling DOE without CXL
  PCI/DOE: Expose DOE features via sysfs
  PCI/DOE: Rename Discovery Response Data Object Contents to type
  PCI/DOE: Rename DOE protocol to feature
This commit is contained in:
Bjorn Helgaas
2025-03-27 13:14:43 -05:00
parent 67b9f18202 6fc6ded50f
commit 651aa9052c
8 changed files with 252 additions and 49 deletions
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5
include/uapi/linux/pci_regs.h
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@@ -1209,9 +1209,12 @@
#define PCI_DOE_DATA_OBJECT_DISC_REQ_3_INDEX 0x000000ff
#define PCI_DOE_DATA_OBJECT_DISC_REQ_3_VER 0x0000ff00
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_VID 0x0000ffff
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_PROTOCOL 0x00ff0000
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_TYPE 0x00ff0000
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_NEXT_INDEX 0xff000000
/* Deprecated old name, replaced with PCI_DOE_DATA_OBJECT_DISC_RSP_3_TYPE */
#define PCI_DOE_DATA_OBJECT_DISC_RSP_3_PROTOCOL PCI_DOE_DATA_OBJECT_DISC_RSP_3_TYPE
/* Compute Express Link (CXL r3.1, sec 8.1.5) */
#define PCI_DVSEC_CXL_PORT 3
#define PCI_DVSEC_CXL_PORT_CTL 0x0c