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| author | Sean V Kelley <sean.v.kelley@intel.com> | 2020-11-20 16:10:34 -0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-12-05 15:26:02 -0600 |
| commit | af113553d9610b2d811d05da96263b4f666f44f0 (patch) | |
| tree | 84d4d4ebc1ac320efd325c0cae50885c6d7ab5be /drivers/pci/pci.h | |
| parent | 5790862255028c831761e13014ee87a06df828f1 (diff) | |
| download | linux-next-af113553d9610b2d811d05da96263b4f666f44f0.tar.gz | |
PCI/AER: Add pcie_walk_rcec() to RCEC AER handling
Root Complex Event Collectors (RCEC) appear as peers to Root Ports and also
have the AER capability. In addition, actions need to be taken for
associated RCiEPs. In such cases the RCECs will need to be walked in order
to find and act upon their respective RCiEPs.
Extend the existing ability to link the RCECs with a walking function
pcie_walk_rcec(). Add RCEC support to the current AER service driver and
attach the AER service driver to the RCEC device.
Co-developed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Link: https://lore.kernel.org/r/20201121001036.8560-14-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>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index ae2ee4df1cff..e988cc930d0b 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -473,10 +473,16 @@ static inline void pci_dpc_init(struct pci_dev *pdev) {} void pci_rcec_init(struct pci_dev *dev); void pci_rcec_exit(struct pci_dev *dev); void pcie_link_rcec(struct pci_dev *rcec); +void pcie_walk_rcec(struct pci_dev *rcec, + int (*cb)(struct pci_dev *, void *), + void *userdata); #else static inline void pci_rcec_init(struct pci_dev *dev) {} static inline void pci_rcec_exit(struct pci_dev *dev) {} static inline void pcie_link_rcec(struct pci_dev *rcec) {} +static inline void pcie_walk_rcec(struct pci_dev *rcec, + int (*cb)(struct pci_dev *, void *), + void *userdata) {} #endif #ifdef CONFIG_PCI_ATS |