[ena] Add memory barrier after writing to on-device memory

Ensure that writes to on-device memory have taken place before writing
to the doorbell register.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
1 file changed
tree: 8a70456310ab02902286201b2d731fca824c39e1
  1. .github/
  2. contrib/
  3. src/
  4. COPYING
  5. COPYING.GPLv2
  6. COPYING.UBDL
  7. README