HomeFreeBSD

isci: explicitly enable/disable PCI busmaster

Description

isci: explicitly enable/disable PCI busmaster

BIOS always enables PCI busmaster on the isci device, which effectively
worked around this omission. But when passing the isci device through
to a guest VM, the hypervisor will disable busmaster and isci will not
work without calling pci_enable_busmaster().

MFC after: 3 days
Sponsored by: Intel

Details

Provenance
jimharrisAuthored on
Parents
rS287562: Make it possible to use acl_create_entry_np(3) to use first entry to an
Branches
Unknown
Tags
Unknown