pci_enable_msix_range — configure device's MSI-X capability structure
int pci_enable_msix_range ( | struct pci_dev * dev, |
| struct msix_entry * entries, | |
| int minvec, | |
int maxvec); |
devpointer to the pci_dev data structure of MSI-X device function
entriespointer to an array of MSI-X entries
minvecminimum number of MSI-X irqs requested
maxvecmaximum number of MSI-X irqs requested
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.