ipheth(4): Add CDC-NCM support for RXHEADmain

The CDC-NCM (USB Communications Device Class – Network Control Model)
protocol allows multiple Ethernet frames to be encapsulated into a single
USB transfer.

On iOS, CDC-NCM is currently implemented for RX only and uses a fixed number
of entries (16). To maintain compatibility with older iOS versions, we attempt
to enable NCM on the USB device first; if this fails, we fall back to the
original behavior.

Approved by:    lwhsu (mentor), markj (mentor)
MFC after:      2 weeks
Sponsored by:   The FreeBSD Foundation

0 files changed, 0 insertions, 0 deletions