pcix_get_max_mmrbc – get PCI-X maximum designed memory read byte count Synopsis int pcix_get_max_mmrbc(struct pci_dev *dev); Arguments dev PCI device to query Description Returns mmrbc: maximum designed memory read count in bytes or appropriate error value. Copyright
pcim_pin_device – Pin managed PCI device Synopsis void pcim_pin_device(struct pci_dev *pdev); Arguments pdev PCI device to pin Description Pin managed PCI device pdev. Pinned device won’t be disabled on driver detach. pdev must have been enabled with pcim_enable_device. Copyright
pcim_enable_device – Managed pci_enable_device Synopsis int pcim_enable_device(struct pci_dev *pdev); Arguments pdev PCI device to be initialized Description Managed pci_enable_device. Copyright
pcie_set_readrq – set PCI Express maximum memory read request Synopsis int pcie_set_readrq(struct pci_dev *dev, int rq); Arguments dev PCI device to query rq maximum memory read count in bytes valid values are 128, 256, 512, 1024, 2048, 4096 Description If possible sets maximum memory read request in bytes Copyright
pcie_set_mps – set PCI Express maximum payload size Synopsis int pcie_set_mps(struct pci_dev *dev, int mps); Arguments dev PCI device to query mps maximum payload size in bytes valid values are 128, 256, 512, 1024, 2048, 4096 Description If possible sets maximum payload size Copyright
pcie_get_readrq – get PCI Express read request size Synopsis int pcie_get_readrq(struct pci_dev *dev); Arguments dev PCI device to query Description Returns maximum memory read request in bytes or appropriate error value. Copyright
pcie_get_mps – get PCI Express maximum payload size Synopsis int pcie_get_mps(struct pci_dev *dev); Arguments dev PCI device to query Description Returns maximum payload size in bytes Copyright
pcie_get_minimum_link – determine minimum link settings of a PCI device Synopsis int pcie_get_minimum_link(struct pci_dev *dev, enum pci_bus_speed *speed, enum pcie_link_width *width); Arguments dev PCI device to query speed storage for minimum speed width storage for minimum width Description This function will walk up the PCI device chain and determine the minimum link width and speed…
pci_write_vpd – Write entry to Vital Product Data Synopsis ssize_t pci_write_vpd(struct pci_dev * dev, loff_t pos, size_t count, const void * buf); Arguments dev pci device struct pos offset in vpd space count number of bytes to write buf buffer containing write data Copyright
pci_write_rom – used to enable access to the PCI ROM display Synopsis ssize_t pci_write_rom(struct file * filp, struct kobject * kobj, struct bin_attribute * bin_attr, char * buf, loff_t off, size_t count); Arguments filp sysfs file kobj kernel object handle bin_attr struct bin_attribute for this file buf user input off file offset count number of byte in input Description writing anything except 0 enables it…
pci_write_legacy_io – write byte(s) to legacy I/O port space Synopsis ssize_t pci_write_legacy_io(struct file * filp, struct kobject * kobj, struct bin_attribute * bin_attr, char * buf, loff_t off, size_t count); Arguments filp open sysfs file kobj kobject corresponding to file to read from bin_attr struct bin_attribute for this file buf buffer containing value to be written off offset into legacy I/O port space count number…
pci_wake_from_d3 – enable/disable device to wake up from D3_hot or D3_cold Synopsis int pci_wake_from_d3(struct pci_dev *dev, bool enable); Arguments dev PCI device to prepare enable True to enable wake-up event generation; false to disable Description Many drivers want the device to wake up the system from D3_hot or D3_cold and this function allows them to…
pci_wait_for_pending_transaction – waits for pending transaction Synopsis int pci_wait_for_pending_transaction(struct pci_dev *dev); Arguments dev the PCI device to operate on Description Return 0 if transaction is pending 1 otherwise. Copyright
pci_vfs_assigned – returns number of VFs are assigned to a guest Synopsis int pci_vfs_assigned(struct pci_dev *dev); Arguments dev the PCI device Description Returns number of VFs belonging to this device that are assigned to a guest. If device is not a physical function returns 0. Copyright
pci_unregister_driver – unregister a pci driver Synopsis void pci_unregister_driver(struct pci_driver *drv); Arguments drv the driver structure to unregister Description Deletes the driver structure from the list of registered PCI drivers, gives it a chance to clean up by calling its remove function for each device it was responsible for, and marks those devices as driverless….
pci_unmap_rom – unmap the ROM from kernel space Synopsis void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom); Arguments pdev pointer to pci device struct rom virtual address of the previous mapping Description Remove a mapping of a previously mapped ROM Copyright
pci_try_set_mwi – enables memory-write-invalidate PCI transaction Synopsis int pci_try_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. Callers are not required to check the return value. Return An appropriate -ERRNO error value on error, or zero for success. Copyright
pci_try_reset_slot – Try to reset a PCI slot Synopsis int pci_try_reset_slot(struct pci_slot *slot); Arguments slot PCI slot to reset Description Same as above except return -EAGAIN if the slot cannot be locked Copyright
pci_try_reset_function – quiesce and reset a PCI device function Synopsis int pci_try_reset_function(struct pci_dev *dev); Arguments dev PCI device to reset Description Same as above, except return -EAGAIN if unable to lock device. Copyright
pci_try_reset_bus – Try to reset a PCI bus Synopsis int pci_try_reset_bus(struct pci_bus *bus); Arguments bus top level PCI bus to reset Description Same as above except return -EAGAIN if the bus cannot be locked Copyright