1__PCI_RESET_FUNCTION(9)       Hardware Interfaces      __PCI_RESET_FUNCTION(9)
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NAME

6       __pci_reset_function_locked - reset a PCI device function while holding
7       the dev mutex lock.
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SYNOPSIS

10       int __pci_reset_function_locked(struct pci_dev * dev);
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ARGUMENTS

13       dev
14           PCI device to reset
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DESCRIPTION

17       Some devices allow an individual function to be reset without affecting
18       other functions in the same device. The PCI device must be responsive
19       to PCI config space in order to use this function.
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21       The device function is presumed to be unused and the caller is holding
22       the device mutex lock when this function is called. Resetting the
23       device will make the contents of PCI configuration space random, so any
24       caller of this must be prepared to reinitialise the device including
25       MSI, bus mastering, BARs, decoding IO and memory spaces, etc.
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27       Returns 0 if the device function was successfully reset or negative if
28       the device doesn't support resetting a single function.
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31Kernel Hackers Manual 3.10         June 2019           __PCI_RESET_FUNCTION(9)
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