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Merge branch 'pci/misc' 

- Expand Kconfig "PF" acronyms (Randy Dunlap)

  - Update MAINTAINERS for arch/x86/kernel/early-quirks.c (Bjorn Helgaas)

  - Add missing include to drivers/pci.h (Alexandru Gagniuc)

  - Override Synopsys USB 3.x HAPS device class so dwc3-haps can claim it
    instead of xhci (Thinh Nguyen)

* pci/misc:
  PCI: Override Synopsys USB 3.x HAPS device class
  PCI: Move Synopsys HAPS platform device IDs
  PCI: Add missing include to drivers/pci.h
  PCI: Remove unnecessary space before function pointer arguments
  MAINTAINERS: Add x86 early-quirks.c file pattern to PCI subsystem
  PCI: Expand the "PF" acronym in Kconfig help text
This commit is contained in:
Bjorn Helgaas 2019-01-02 15:31:03 -06:00
parent 84e0e72722 03e6742584
commit e6397dfcb5
8 changed files with 44 additions and 18 deletions
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1
MAINTAINERS
View File

@ -11500,6 +11500,7 @@ F: include/uapi/linux/pci*
F: lib/pci*
F: arch/x86/pci/
F: arch/x86/kernel/quirks.c
F: arch/x86/kernel/early-quirks.c
PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS
M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

6
drivers/pci/Kconfig
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@ -73,9 +73,9 @@ config PCI_PF_STUB
depends on PCI_IOV
help
Say Y or M here if you want to enable support for devices that
require SR-IOV support, while at the same time the PF itself is
not providing any actual services on the host itself such as
storage or networking.
require SR-IOV support, while at the same time the PF (Physical
Function) itself is not providing any actual services on the
host itself such as storage or networking.
When in doubt, say N.

2
drivers/pci/pci.h
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@ -2,6 +2,8 @@
#ifndef DRIVERS_PCI_H
#define DRIVERS_PCI_H
#include <linux/pci.h>
#define PCI_FIND_CAP_TTL 48
#define PCI_VSEC_ID_INTEL_TBT 0x1234 /* Thunderbolt */

16
drivers/pci/pcie/portdrv.h
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@ -71,19 +71,19 @@ static inline void *get_service_data(struct pcie_device *dev)
struct pcie_port_service_driver {
const char *name;
int (*probe) (struct pcie_device *dev);
void (*remove) (struct pcie_device *dev);
int (*suspend) (struct pcie_device *dev);
int (*resume_noirq) (struct pcie_device *dev);
int (*resume) (struct pcie_device *dev);
int (*runtime_suspend) (struct pcie_device *dev);
int (*runtime_resume) (struct pcie_device *dev);
int (*probe)(struct pcie_device *dev);
void (*remove)(struct pcie_device *dev);
int (*suspend)(struct pcie_device *dev);
int (*resume_noirq)(struct pcie_device *dev);
int (*resume)(struct pcie_device *dev);
int (*runtime_suspend)(struct pcie_device *dev);
int (*runtime_resume)(struct pcie_device *dev);
/* Device driver may resume normal operations */
void (*error_resume)(struct pci_dev *dev);
/* Link Reset Capability - AER service driver specific */
pci_ers_result_t (*reset_link) (struct pci_dev *dev);
pci_ers_result_t (*reset_link)(struct pci_dev *dev);
int port_type; /* Type of the port this driver can handle */
u32 service; /* Port service this device represents */

24
drivers/pci/quirks.c
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@ -618,6 +618,30 @@ static void quirk_amd_nl_class(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB,
quirk_amd_nl_class);
/*
* Synopsys USB 3.x host HAPS platform has a class code of
* PCI_CLASS_SERIAL_USB_XHCI, and xhci driver can claim it. However, these
* devices should use dwc3-haps driver. Change these devices' class code to
* PCI_CLASS_SERIAL_USB_DEVICE to prevent the xhci-pci driver from claiming
* them.
*/
static void quirk_synopsys_haps(struct pci_dev *pdev)
{
u32 class = pdev->class;
switch (pdev->device) {
case PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3:
case PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI:
case PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31:
pdev->class = PCI_CLASS_SERIAL_USB_DEVICE;
pci_info(pdev, "PCI class overridden (%#08x -> %#08x) so dwc3 driver can claim this instead of xhci\n",
class, pdev->class);
break;
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SYNOPSYS, PCI_ANY_ID,
quirk_synopsys_haps);
/*
* Let's make the southbridge information explicit instead of having to
* worry about people probing the ACPI areas, for example.. (Yes, it

4
drivers/usb/dwc3/dwc3-haps.c
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@ -15,10 +15,6 @@
#include <linux/platform_device.h>
#include <linux/property.h>
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf
/**
* struct dwc3_haps - Driver private structure
* @dwc3: child dwc3 platform_device

6
include/linux/pci.h
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@ -764,9 +764,9 @@ struct pci_driver {
int (*suspend)(struct pci_dev *dev, pm_message_t state); /* Device suspended */
int (*suspend_late)(struct pci_dev *dev, pm_message_t state);
int (*resume_early)(struct pci_dev *dev);
int (*resume) (struct pci_dev *dev); /* Device woken up */
void (*shutdown) (struct pci_dev *dev);
int (*sriov_configure) (struct pci_dev *dev, int num_vfs); /* On PF */
int (*resume)(struct pci_dev *dev); /* Device woken up */
void (*shutdown)(struct pci_dev *dev);
int (*sriov_configure)(struct pci_dev *dev, int num_vfs); /* On PF */
const struct pci_error_handlers *err_handler;
const struct attribute_group **groups;
struct device_driver driver;

3
include/linux/pci_ids.h
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@ -2358,6 +2358,9 @@
#define PCI_DEVICE_ID_CENATEK_IDE 0x0001
#define PCI_VENDOR_ID_SYNOPSYS 0x16c3
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf
#define PCI_VENDOR_ID_VITESSE 0x1725
#define PCI_DEVICE_ID_VITESSE_VSC7174 0x7174