cxgbe: Report SR-IOV VF statusHEADmain

Retain the PF-accepted MAC and VLAN settings from the per-port t4iov
companion and expose them through the corresponding cxgbe ifnet.

Publish, snapshot, and destroy the cache under the existing adapter
synchronized-operation mechanism so status queries cannot race IOV
configuration or teardown.

Track successful t4iov attachment independently of the active VF count.
Restrict reporting to the port main VI, return an empty status for a
supported but unconfigured PF, and omit status from VF and auxiliary
VIs.

Reviewed by:	jhb
Sponsored by:	BBOX.io
Differential Revision:	https://reviews.freebsd.org/D58741

0 files changed, 0 insertions, 0 deletions