Merge branch 'pci/enumeration'

  - add decoding for 16 GT/s link speed (Jay Fang)

  - add interfaces to get max link speed and width (Tal Gilboa)

  - add pcie_bandwidth_capable() to compute max supported link bandwidth
    (Tal Gilboa)

  - add pcie_bandwidth_available() to compute bandwidth available to device
    (Tal Gilboa)

  - add pcie_print_link_status() to log link speed and whether it's limited
    (Tal Gilboa)

  - use PCI core interfaces to report when device performance may be
    limited by its slot instead of doing it in each driver (Tal Gilboa)

* pci/enumeration:
  fm10k: Report PCIe link properties with pcie_print_link_status()
  net/mlx5e: Use pcie_bandwidth_available() to compute bandwidth
  net/mlx5: Report PCIe link properties with pcie_print_link_status()
  net/mlx4_core: Report PCIe link properties with pcie_print_link_status()
  PCI: Add pcie_print_link_status() to log link speed and whether it's limited
  PCI: Add pcie_bandwidth_available() to compute bandwidth available to device
  PCI: Add pcie_bandwidth_capable() to compute max supported link bandwidth
  PCI: Add pcie_get_width_cap() to find max supported link width
  PCI: Add pcie_get_speed_cap() to find max supported link speed
  PCI: Add decoding for 16 GT/s link speed

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 24e15510a946..926a8cb5d6d4 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -256,6 +256,7 @@ enum pci_bus_speed {
 	PCIE_SPEED_2_5GT		= 0x14,
 	PCIE_SPEED_5_0GT		= 0x15,
 	PCIE_SPEED_8_0GT		= 0x16,
+	PCIE_SPEED_16_0GT		= 0x17,
 	PCI_SPEED_UNKNOWN		= 0xff,
 };
 
@@ -1077,6 +1078,10 @@ int pcie_get_mps(struct pci_dev *dev);
 int pcie_set_mps(struct pci_dev *dev, int mps);
 int pcie_get_minimum_link(struct pci_dev *dev, enum pci_bus_speed *speed,
 			  enum pcie_link_width *width);
+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 __pci_reset_function_locked(struct pci_dev *dev);
 int pci_reset_function(struct pci_dev *dev);