pci_enable_msix_range (9) - Linux Manuals
pci_enable_msix_range: configure device's MSI-X capability structure
NAME
pci_enable_msix_range - configure device's MSI-X capability structure
SYNOPSIS
-
int pci_enable_msix_range(struct pci_dev
* dev, struct msix_entry* entries, intminvec, int maxvec);
ARGUMENTS
dev
-
- pointer to the pci_dev data structure of MSI-X device function
entries
- pointer to an array of MSI-X entries
minvec
- minimum number of MSI-X irqs requested
maxvec
- maximum number of MSI-X irqs requested
DESCRIPTION
Setup the MSI-X capability structure of device function with a maximum possible number of interrupts in the range between minvec and maxvec upon its software driver call to request for MSI-X mode enabled on its hardware device function. It returns a negative errno if an error occurs. If it succeeds, it returns the actual number of interrupts allocated and indicates the successful configuration of MSI-X capability structure with new allocated MSI-X interrupts.
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