__PCI_RESET_FUNCTION(9) Hardware Interfaces __PCI_RESET_FUNCTION(9)NAME__pci_reset_function_locked - reset a PCI device function while holding
the dev mutex lock.
SYNOPSIS
int __pci_reset_function_locked(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.
The device function is presumed to be unused and the caller is holding
the device mutex lock when this function is called. Resetting the
device will make the contents of PCI configuration space random, so any
caller of this must be prepared to reinitialise the device including
MSI, bus mastering, BARs, decoding IO and memory spaces, etc.
Returns 0 if the device function was successfully reset or negative if
the device doesn't support resetting a single function.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 __PCI_RESET_FUNCTION(9)
