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Merge branch 'pci/virtualization'

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- probe for device reset support during enumeration instead of runtime
    (Bjorn Helgaas)

  - add ACS quirk for Ampere (née APM) root ports (Feng Kan)

  - add function 1 DMA alias quirk for Marvell 88SE9220 (Thomas
    Vincent-Cross)

  - protect device restore with device lock (Sinan Kaya)

  - handle failure of FLR gracefully (Sinan Kaya)

  - handle CRS (config retry status) after device resets (Sinan Kaya)

  - skip various config reads for SR-IOV VFs as an optimization (KarimAllah
    Ahmed)

* pci/virtualization:
  PCI/IOV: Add missing prototypes for powerpc pcibios interfaces
  PCI/IOV: Use VF0 cached config registers for other VFs
  PCI/IOV: Skip BAR sizing for VFs
  PCI/IOV: Skip INTx config reads for VFs
  PCI: Wait for device to become ready after secondary bus reset
  PCI: Add a return type for pci_reset_bridge_secondary_bus()
  PCI: Wait for device to become ready after a power management reset
  PCI: Rename pci_flr_wait() to pci_dev_wait() and make it generic
  PCI: Handle FLR failure and allow other reset types
  PCI: Protect restore with device lock to be consistent
  PCI: Add function 1 DMA alias quirk for Marvell 88SE9220
  PCI: Add ACS quirk for Ampere root ports
  PCI: Remove redundant probes for device reset support
  PCI: Probe for device reset support during enumeration

Conflicts:
	include/linux/pci.h
This commit is contained in:
Bjorn Helgaas
2018-04-04 13:28:26 -05:00
committed by Bjorn Helgaas
parent 0eb6de7872 619e6f340c
commit a4b88505ac
8 changed files with 168 additions and 51 deletions
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11
include/linux/pci.h
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@@ -1085,7 +1085,7 @@ u32 pcie_bandwidth_available(struct pci_dev *dev, struct pci_dev **limiting_dev,
enum pci_bus_speed *speed,
enum pcie_link_width *width);
void pcie_print_link_status(struct pci_dev *dev);
void pcie_flr(struct pci_dev *dev);
int pcie_flr(struct pci_dev *dev);
int __pci_reset_function_locked(struct pci_dev *dev);
int pci_reset_function(struct pci_dev *dev);
int pci_reset_function_locked(struct pci_dev *dev);
@@ -1098,7 +1098,7 @@ int pci_reset_bus(struct pci_bus *bus);
int pci_try_reset_bus(struct pci_bus *bus);
void pci_reset_secondary_bus(struct pci_dev *dev);
void pcibios_reset_secondary_bus(struct pci_dev *dev);
void pci_reset_bridge_secondary_bus(struct pci_dev *dev);
int pci_reset_bridge_secondary_bus(struct pci_dev *dev);
void pci_update_resource(struct pci_dev *dev, int resno);
int __must_check pci_assign_resource(struct pci_dev *dev, int i);
int __must_check pci_reassign_resource(struct pci_dev *dev, int i, resource_size_t add_size, resource_size_t align);
@@ -1299,7 +1299,6 @@ unsigned char pci_bus_max_busnr(struct pci_bus *bus);
void pci_setup_bridge(struct pci_bus *bus);
resource_size_t pcibios_window_alignment(struct pci_bus *bus,
unsigned long type);
resource_size_t pcibios_iov_resource_alignment(struct pci_dev *dev, int resno);
#define PCI_VGA_STATE_CHANGE_BRIDGE (1 << 0)
#define PCI_VGA_STATE_CHANGE_DECODES (1 << 1)
@@ -1922,6 +1921,7 @@ void pcibios_release_device(struct pci_dev *dev);
void pcibios_penalize_isa_irq(int irq, int active);
int pcibios_alloc_irq(struct pci_dev *dev);
void pcibios_free_irq(struct pci_dev *dev);
resource_size_t pcibios_default_alignment(void);
#ifdef CONFIG_HIBERNATE_CALLBACKS
extern struct dev_pm_ops pcibios_pm_ops;
@@ -1954,6 +1954,11 @@ int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs);
int pci_sriov_get_totalvfs(struct pci_dev *dev);
resource_size_t pci_iov_resource_size(struct pci_dev *dev, int resno);
void pci_vf_drivers_autoprobe(struct pci_dev *dev, bool probe);
/* Arch may override these (weak) */
int pcibios_sriov_enable(struct pci_dev *pdev, u16 num_vfs);
int pcibios_sriov_disable(struct pci_dev *pdev);
resource_size_t pcibios_iov_resource_alignment(struct pci_dev *dev, int resno);
#else
static inline int pci_iov_virtfn_bus(struct pci_dev *dev, int id)
{