pci_store_saved_state – Allocate and return an opaque struct containing the device saved state. Synopsis struct pci_saved_state *pci_store_saved_state(struct pci_dev *dev); Arguments dev PCI device that we’re dealing with Description Return NULL if no state or error. Copyright
pci_stop_and_remove_bus_device – remove a PCI device and any children Synopsis void pci_stop_and_remove_bus_device(struct pci_dev *dev); Arguments dev the device to remove Description Remove a PCI device from the device lists, informing the drivers that the device has been removed. We also remove any subordinate buses and children in a depth-first manner. For each device we remove,…
pci_sriov_set_totalvfs – – reduce the TotalVFs available Synopsis int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs); Arguments dev the PCI PF device numvfs number that should be used for TotalVFs supported Description Should be called from PF driver’s probe routine with device’s mutex held. Returns 0 if PF is an SRIOV-capable device and value of numvfs valid….
pci_sriov_get_totalvfs – – get total VFs supported on this device Synopsis int pci_sriov_get_totalvfs(struct pci_dev *dev); Arguments dev the PCI PF device Description For a PCIe device with SRIOV support, return the PCIe SRIOV capability value of TotalVFs or the value of driver_max_VFs if the driver reduced it. Otherwise 0. Copyright
pci_set_vpd_size – Set size of Vital Product Data space Synopsis int pci_set_vpd_size(struct pci_dev *dev, size_t len); Arguments dev pci device struct len size of vpd space Copyright
pci_set_power_state – Set the power state of a PCI device Synopsis int pci_set_power_state(struct pci_dev *dev, pci_power_t state); Arguments dev PCI device to handle. state PCI power state (D0, D1, D2, D3hot) to put the device into. Description Transition a device to a new power state, using the platform firmware and/or the device’s PCI PM registers….
pci_set_pcie_reset_state – set reset state for device dev Synopsis int pci_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state); Arguments dev the PCIe device reset state Reset state to enter into Description Sets the PCI reset state for the device. Copyright
pci_set_mwi – enables memory-write-invalidate PCI transaction Synopsis int pci_set_mwi(struct pci_dev *dev); Arguments dev the PCI device for which MWI is enabled Description Enables the Memory-Write-Invalidate transaction in PCI_COMMAND. Return An appropriate -ERRNO error value on error, or zero for success. Copyright
pci_set_master – enables bus-mastering for device dev Synopsis void pci_set_master(struct pci_dev *dev); Arguments dev the PCI device to enable Description Enables bus-mastering on the device and calls pcibios_set_master to do the needed arch specific settings. Copyright
pci_set_cacheline_size – ensure the CACHE_LINE_SIZE register is programmed Synopsis int pci_set_cacheline_size(struct pci_dev *dev); Arguments dev the PCI device for which MWI is to be enabled Description Helper function for pci_set_mwi. Originally copied from drivers/net/acenic.c. Copyright 1998-2001 by Jes Sorensen, <jestrained-monkey.org>. Return An appropriate -ERRNO error value on error, or zero for success. Copyright
pci_select_bars – Make BAR mask from the type of resource Synopsis int pci_select_bars(struct pci_dev *dev, unsigned long flags); Arguments dev the PCI device for which BAR mask is made flags resource type mask to be selected Description This helper routine makes bar mask from the type of resource. Copyright
pci_scan_slot – scan a PCI slot on a bus for devices. Synopsis int pci_scan_slot(struct pci_bus *bus, int devfn); Arguments bus PCI bus to scan devfn slot number to scan (must have zero function.) Description Scan a PCI slot on the specified PCI bus for devices, adding discovered devices to the bus->devices list. New devices will…
pci_save_state – save the PCI configuration space of a device before suspending Synopsis int pci_save_state(struct pci_dev *dev); Arguments dev – PCI device that we’re dealing with Copyright
pci_restore_state – Restore the saved state of a PCI device Synopsis void pci_restore_state(struct pci_dev *dev); Arguments dev – PCI device that we’re dealing with Copyright
pci_reset_slot – reset a PCI slot Synopsis int pci_reset_slot(struct pci_slot *slot); Arguments slot PCI slot to reset Description A PCI bus may host multiple slots, each slot may support a reset mechanism independent of other slots. For instance, some slots may support slot power control. In the case of a 1:1 bus to slot architecture,…
pci_reset_function – quiesce and reset a PCI device function Synopsis int pci_reset_function(struct pci_dev *dev); Arguments dev PCI device to reset Description Some devices allow an individual function to be reset without affecting other functions in the same device. The PCI device must be responsive to PCI config space in order to use this function. This…
pci_reset_bus – reset a PCI bus Synopsis int pci_reset_bus(struct pci_bus *bus); Arguments bus top level PCI bus to reset Description Do a bus reset on the given bus and any subordinate buses, saving and restoring state of all devices. Return 0 on success, non-zero on error. Copyright
pci_reset_bridge_secondary_bus – Reset the secondary bus on a PCI bridge. Synopsis void pci_reset_bridge_secondary_bus(struct pci_dev *dev); Arguments dev Bridge device Description Use the bridge control register to assert reset on the secondary bus. Devices on the secondary bus are left in power-on state. Copyright
pci_rescan_bus – scan a PCI bus for devices. Synopsis unsigned int pci_rescan_bus(struct pci_bus *bus); Arguments bus PCI bus to scan Description Scan a PCI bus and child buses for new devices, adds them, and enables them. Returns the max number of subordinate bus discovered. Copyright
pci_request_selected_regions – Reserve selected PCI I/O and memory resources Synopsis int pci_request_selected_regions(struct pci_dev *pdev, int bars, const char *res_name); Arguments pdev PCI device whose resources are to be reserved bars Bitmask of BARs to be requested res_name Name to be associated with resource Copyright