On Tue, Aug 04, 2020 at 12:40:44PM -0700, Sean V Kelley wrote: > From: Qiuxu Zhuo <qiuxu.zhuo@xxxxxxxxx> > > A PCIe Root Complex Event Collector(RCEC) has the base class 0x08, > sub-class 0x07, and programming interface 0x00. Add the class code > 0x0807 to identify RCEC devices and add the defines for the RCEC > Endpoint Association Extended Capability. > > See PCI Express Base Specification, version 5.0-1, section "1.3.4 > Root Complex Event Collector" and section "7.9.10 Root Complex > Event Collector Endpoint Association Extended Capability" > > Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@xxxxxxxxx> > Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> 1) "git log --oneline include/linux/pci_ids.h". Match it. Mention the most important words, like "RCEC", early in the subject. 2) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst#n555 > --- > include/linux/pci_ids.h | 1 + > include/uapi/linux/pci_regs.h | 7 +++++++ > 2 files changed, 8 insertions(+) > > diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h > index 5c709a1450b1..bc6d1a4ca02d 100644 > --- a/include/linux/pci_ids.h > +++ b/include/linux/pci_ids.h > @@ -81,6 +81,7 @@ > #define PCI_CLASS_SYSTEM_RTC 0x0803 > #define PCI_CLASS_SYSTEM_PCI_HOTPLUG 0x0804 > #define PCI_CLASS_SYSTEM_SDHCI 0x0805 > +#define PCI_CLASS_SYSTEM_RCEC 0x0807 > #define PCI_CLASS_SYSTEM_OTHER 0x0880 > > #define PCI_BASE_CLASS_INPUT 0x09 > diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h > index f9701410d3b5..f335f65f65d6 100644 > --- a/include/uapi/linux/pci_regs.h > +++ b/include/uapi/linux/pci_regs.h > @@ -828,6 +828,13 @@ > #define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */ > #define PCI_EXT_CAP_PWR_SIZEOF 16 > > +/* Root Complex Event Collector Endpoint Association */ > +#define PCI_RCEC_RCIEP_BITMAP 4 /* Associated Bitmap for RCiEPs */ > +#define PCI_RCEC_BUSN 8 /* RCEC Associated Bus Numbers */ > +#define PCI_RCEC_BUSN_REG_VER 0x02 /* Least capability version that BUSN present */ > +#define PCI_RCEC_BUSN_NEXT(x) (((x) >> 8) & 0xff) > +#define PCI_RCEC_BUSN_LAST(x) (((x) >> 16) & 0xff) > + > /* Vendor-Specific (VSEC, PCI_EXT_CAP_ID_VNDR) */ > #define PCI_VNDR_HEADER 4 /* Vendor-Specific Header */ > #define PCI_VNDR_HEADER_ID(x) ((x) & 0xffff) > -- > 2.27.0 >
