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| author | Amey Narkhede <ameynarkhede03@gmail.com> | 2021-08-17 23:34:54 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-08-17 17:44:34 -0500 |
| commit | e20afa06244eb5d7fa850f9fe2a78ae17ba96f81 (patch) | |
| tree | 59696d3cb3c85dfb967e401ebc3e538a576256c3 /include/linux/pci.h | |
| parent | 56f107d7813f116484019617043393a7753ffcbf (diff) | |
| download | lwn-e20afa06244eb5d7fa850f9fe2a78ae17ba96f81.tar.gz lwn-e20afa06244eb5d7fa850f9fe2a78ae17ba96f81.zip | |
PCI: Add array to track reset method ordering
Add reset_methods[] in struct pci_dev to keep track of reset mechanisms
supported by the device and their ordering.
Refactor probing and reset functions to take advantage of calling
convention of reset functions.
Co-developed-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20210817180500.1253-4-ameynarkhede03@gmail.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 1de37e3fc29d..2faf517d20c1 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -49,6 +49,9 @@ PCI_STATUS_SIG_TARGET_ABORT | \ PCI_STATUS_PARITY) +/* Number of reset methods used in pci_reset_fn_methods array in pci.c */ +#define PCI_NUM_RESET_METHODS 6 + /* * The PCI interface treats multi-function devices as independent * devices. The slot/function address of each device is encoded @@ -506,6 +509,9 @@ struct pci_dev { char *driver_override; /* Driver name to force a match */ unsigned long priv_flags; /* Private flags for the PCI driver */ + + /* These methods index pci_reset_fn_methods[] */ + u8 reset_methods[PCI_NUM_RESET_METHODS]; /* In priority order */ }; static inline struct pci_dev *pci_physfn(struct pci_dev *dev) |