diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2012-07-13 14:30:21 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-08-22 13:47:28 -0600 |
| commit | defb9446fe417f72855bc8bf97aa5d8af076bdf8 (patch) | |
| tree | 156de2c73267bb7e299fa8d2fa2c20ef6d2cb487 /include/linux/pci_regs.h | |
| parent | 44a9a36f6be43636ac2342c06d9feb60db77826a (diff) | |
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: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux/pci_regs.h')
| -rw-r--r-- | include/linux/pci_regs.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h index 7fb75b14375..02448b1a090 100644 --- a/include/linux/pci_regs.h +++ b/include/linux/pci_regs.h @@ -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 * |