pci_intx_mask_supported – probe for INTx masking support Synopsis bool pci_intx_mask_supported(struct pci_dev * dev); Arguments dev the PCI device to operate on Description Check if the device dev support INTx masking via the config space command word. Copyright
pci_intx – enables/disables PCI INTx for device dev Synopsis void pci_intx(struct pci_dev *pdev, int enable); Arguments pdev the PCI device to operate on enable boolean: whether to enable or disable PCI INTx Description Enables/disables PCI INTx for device dev Copyright
pci_hp_remove_module_link – remove symbolic link to the hotplug driver module. Synopsis void pci_hp_remove_module_link(struct pci_slot *pci_slot); Arguments pci_slot struct pci_slot Description Helper function for pci_hotplug_core.c to remove symbolic link to the hotplug driver module. Copyright
pci_hp_deregister – deregister a hotplug_slot with the PCI hotplug subsystem Synopsis int pci_hp_deregister(struct hotplug_slot *slot); Arguments slot pointer to the struct hotplug_slot to deregister Description The slot must have been registered with the pci hotplug subsystem previously with a call to pci_hp_register. Returns 0 if successful, anything else for an error. Copyright
pci_hp_create_module_link – create symbolic link to the hotplug driver module. Synopsis void pci_hp_create_module_link(struct pci_slot *pci_slot); Arguments pci_slot struct pci_slot Description Helper function for pci_hotplug_core.c to create symbolic link to the hotplug driver module. Copyright
pci_hp_change_slot_info – changes the slot’s information structure in the core Synopsis int pci_hp_change_slot_info(struct hotplug_slot *slot, struct hotplug_slot_info *info); Arguments slot pointer to the slot whose info has changed info pointer to the info copy into the slot’s info structure Description slot must have been registered with the pci hotplug subsystem previously with a call to…
pci_get_subsys – begin or continue searching for a PCI device by vendor/subvendor/device/subdevice id Synopsis struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device, unsigned int ss_vendor, unsigned int ss_device, struct pci_dev *from); Arguments vendor PCI vendor id to match, or PCI_ANY_ID to match all vendor ids device PCI device id to match, or PCI_ANY_ID to match…
pci_get_slot – locate PCI device for a given PCI slot Synopsis struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn); Arguments bus PCI bus on which desired PCI device resides devfn encodes number of PCI slot in which the desired PCI device resides and the logical device number within that slot in case of multi-function devices….
pci_get_domain_bus_and_slot – locate PCI device for a given PCI domain (segment), bus, and slot Synopsis struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus, unsigned int devfn); Arguments domain PCI domain/segment on which the PCI device resides. bus PCI bus on which desired PCI device resides devfn encodes number of PCI slot in which the desired PCI…
pci_get_device – begin or continue searching for a PCI device by vendor/device id Synopsis struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device, struct pci_dev *from); Arguments vendor PCI vendor id to match, or PCI_ANY_ID to match all vendor ids device PCI device id to match, or PCI_ANY_ID to match all device ids from Previous PCI…
pci_get_class – begin or continue searching for a PCI device by class Synopsis struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from); Arguments class search for a PCI device with this class designation from Previous PCI device found in search, or NULL for new search. Description Iterates through the list of known PCI devices. If a…
pci_free_irq_vectors – free previously allocated IRQs for a device Synopsis void pci_free_irq_vectors(struct pci_dev *dev); Arguments dev PCI device to operate on Description Undoes the allocations and enabling in pci_alloc_irq_vectors. Copyright
pci_find_resource – Return matching PCI device resource Synopsis struct resource *pci_find_resource(struct pci_dev *dev, struct resource *res); Arguments dev PCI device to query res Resource to look for Description Goes over standard PCI resources (BARs) and checks if the given resource is partially or fully contained in any of them. In that case the matching resource…
pci_find_pcie_root_port – return PCIe Root Port Synopsis struct pci_dev *pci_find_pcie_root_port(struct pci_dev *dev); Arguments dev PCI device to query Description Traverse up the parent chain and return the PCIe Root Port PCI Device for a given PCI Device. Copyright
pci_find_parent_resource – return resource region of parent bus of given region Synopsis struct resource *pci_find_parent_resource(const struct pci_dev *dev, struct resource *res); Arguments dev PCI device structure contains resources to be searched res child resource record for which parent is sought Description For given resource region of given device, return the resource region of parent bus…
pci_find_next_ht_capability – query a device’s Hypertransport capabilities Synopsis int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap); Arguments dev PCI device to query pos Position from which to continue searching ht_cap Hypertransport capability code Description To be used in conjunction with pci_find_ht_capability to search for all capabilities matching ht_cap. pos should always be a value returned…
pci_find_next_ext_capability – Find an extended capability Synopsis int pci_find_next_ext_capability(struct pci_dev *dev, int start, int cap); Arguments dev PCI device to query start address at which to start looking (0 to start at beginning of list) cap capability code Description Returns the address of the next matching extended capability structure within the device’s PCI configuration space…
pci_find_next_bus – begin or continue searching for a PCI bus Synopsis struct pci_bus *pci_find_next_bus(const struct pci_bus *from); Arguments from Previous PCI bus found, or NULL for new search. Description Iterates through the list of known PCI buses. A new search is initiated by passing NULL as the from argument. Otherwise if from is not NULL,…
pci_find_ht_capability – query a device’s Hypertransport capabilities Synopsis int pci_find_ht_capability(struct pci_dev *dev, int ht_cap); Arguments dev PCI device to query ht_cap Hypertransport capability code Description Tell if a device supports a given Hypertransport capability. Returns an address within the device’s PCI configuration space or 0 in case the device does not support the request capability….
pci_find_ext_capability – Find an extended capability Synopsis int pci_find_ext_capability(struct pci_dev *dev, int cap); Arguments dev PCI device to query cap capability code Description Returns the address of the requested extended capability structure within the device’s PCI configuration space or 0 if the device does not support it. Possible values for cap: PCI_EXT_CAP_ID_ERR Advanced Error Reporting…