diff options
| author |   Sean V Kelley <sean.v.kelley@intel.com> | 2020-11-20 16:10:35 -0800 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2020-12-05 15:26:02 -0600 |
| commit | 9a2f604f44979e0effa8cf067e5a8ecda729f23b (patch) | |
| tree | f16d5d5336df79199ea0355723877e2bbc2206e6 /drivers/pci/pcie/portdrv_core.c | |
| parent | PCI/AER: Add pcie_walk_rcec() to RCEC AER handling (diff) | |
| download | linux-dev-9a2f604f44979e0effa8cf067e5a8ecda729f23b.tar.xz linux-dev-9a2f604f44979e0effa8cf067e5a8ecda729f23b.zip | |
PCI/PME: Add pcie_walk_rcec() to RCEC PME handling
Root Complex Event Collectors (RCEC) appear as peers of Root Ports and also
have the PME capability. As with AER, there is a need to be able to walk
the RCiEPs associated with their RCEC for purposes of acting upon them with
callbacks.
Add RCEC support through the use of pcie_walk_rcec() to the current PME
service driver and attach the PME service driver to the RCEC device.
Co-developed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Link: https://lore.kernel.org/r/20201121001036.8560-15-sean.v.kelley@intel.com
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # non-native/no RCEC
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pcie/portdrv_core.c')
| -rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 50a9522ab07d..e1fed6649c41 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -233,12 +233,9 @@ static int get_port_device_capability(struct pci_dev *dev) } #endif - /* - * Root ports are capable of generating PME too. Root Complex - * Event Collectors can also generate PMEs, but we don't handle - * those yet. - */ - if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT && + /* Root Ports and Root Complex Event Collectors may generate PMEs */ + if ((pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT || + pci_pcie_type(dev) == PCI_EXP_TYPE_RC_EC) && (pcie_ports_native || host->native_pme)) { services |= PCIE_PORT_SERVICE_PME; |