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Commit defb9446 authored by Bjorn Helgaas's avatar Bjorn Helgaas
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PCI: Add Vendor-Specific Extended Capability header info 



This adds the fields in the Vendor-Specific Header: ID, Rev, and Length.
There may be multiple Vendor-Specific capabilities, so drivers should use
the VSEC ID to identify the one of interest.

Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 44a9a36f

include/linux/pci_regs.h

+6 −0
Original line number Diff line number Diff line
@@ -677,6 +677,12 @@ 
#define  PCI_PWR_CAP_BUDGET(x)	((x) & 1)	/* Included in system budget */

#define PCI_EXT_CAP_PWR_SIZEOF	16



/* Vendor-Specific (VSEC, PCI_EXT_CAP_ID_VNDR) */

#define PCI_VNDR_HEADER		4	/* Vendor-Specific Header */

#define  PCI_VNDR_HEADER_ID(x)	((x) & 0xffff)

#define  PCI_VNDR_HEADER_REV(x)	(((x) >> 16) & 0xf)

#define  PCI_VNDR_HEADER_LEN(x)	(((x) >> 20) & 0xfff)



/*

 * Hypertransport sub capability types

 *