diff options
| author | Keith Busch | 2016-05-02 15:10:31 -0500 |
|---|---|---|
| committer | Bjorn Helgaas | 2016-05-03 10:35:49 -0500 |
| commit | 10126ac14d36e74b2705802dc915b0b18463a51f (patch) | |
| tree | 9cff4695f03085209d3ebf71ecfdc1cd50054756 /drivers | |
| parent | 6d81417da8720b393f670de9cce03a3642ea9a30 (diff) | |
PCI: Add Downstream Port Containment portdrv service type
Add the Downstream Port Containment (PCIE_PORT_SERVICE_DPC) portdrv service
type, available if the device has the DPC extended capability.
[bhelgaas: split to separate patch, changelog]
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/pcie/portdrv.h | 2 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_acpi.c | 2 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 4 |
3 files changed, 5 insertions, 3 deletions
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h index 63cb2ef9c5ae..7d82f6d47e68 100644 --- a/drivers/pci/pcie/portdrv.h +++ b/drivers/pci/pcie/portdrv.h @@ -11,7 +11,7 @@ #include <linux/compiler.h> -#define PCIE_PORT_DEVICE_MAXSERVICES 4 +#define PCIE_PORT_DEVICE_MAXSERVICES 5 /* * According to the PCI Express Base Specification 2.0, the indices of * the MSI-X table entries used by port services must not exceed 31 diff --git a/drivers/pci/pcie/portdrv_acpi.c b/drivers/pci/pcie/portdrv_acpi.c index b4d2894ee3fc..44296eb729d3 100644 --- a/drivers/pci/pcie/portdrv_acpi.c +++ b/drivers/pci/pcie/portdrv_acpi.c @@ -51,7 +51,7 @@ int pcie_port_acpi_setup(struct pci_dev *port, int *srv_mask) flags = root->osc_control_set; - *srv_mask = PCIE_PORT_SERVICE_VC; + *srv_mask = PCIE_PORT_SERVICE_VC | PCIE_PORT_SERVICE_DPC; if (flags & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL) *srv_mask |= PCIE_PORT_SERVICE_HP; if (flags & OSC_PCI_EXPRESS_PME_CONTROL) diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 94d3b82415c1..2ab0f424a378 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -262,7 +262,7 @@ static int get_port_device_capability(struct pci_dev *dev) return 0; cap_mask = PCIE_PORT_SERVICE_PME | PCIE_PORT_SERVICE_HP - | PCIE_PORT_SERVICE_VC; + | PCIE_PORT_SERVICE_VC | PCIE_PORT_SERVICE_DPC; if (pci_aer_available()) cap_mask |= PCIE_PORT_SERVICE_AER; @@ -311,6 +311,8 @@ static int get_port_device_capability(struct pci_dev *dev) */ pcie_pme_interrupt_enable(dev, false); } + if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_DPC)) + services |= PCIE_PORT_SERVICE_DPC; return services; } |