pci_set_cacheline_size(9) centos man page | unix.com

PCI_SET_CACHELINE_SI(9) 					Hardware Interfaces					   PCI_SET_CACHELINE_SI(9)

NAME
       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>.

RETURNS
       An appropriate -ERRNO error value on error, or zero for success.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   PCI_SET_CACHELINE_SI(9)