Ringing the doorbell before making the BPF call can result in the
mbuf being freed before the BPF call.
Reviewed-by: markj
MFC-after: 3 days
Differential Revision: https://reviews.freebsd.org/D41189
While there, also make MODULE_PNP_INFO to reflect that the device
description is provided.
Reported-by: jrtc27
Reviewed-by: jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D40430
gVNIC is a virtual network interface designed specifically for
Google Compute Engine (GCE). It is required to support per-VM Tier_1
networking performance, and for using certain VM shapes on GCE.
The NIC supports TSO, Rx and Tx checksum offloads, and RSS.
It does not currently do hardware LRO, and thus the software-LRO
in the host is used instead. It also supports jumbo frames.
For each queue, the driver negotiates a set of pages with the NIC to
serve as a fixed bounce buffer, this precludes the use of iflib.
Reviewed-by: markj
MFC-after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D39873
