ixgbe(4): Fix enabling/disabling and reconfiguration of queues
- Wrong order of casting and bit shift caused that enabling and disabling queues didn't work properly for queues number larger than 32. Use literals with right suffix instead.
- TX ring tail address was not updated during reinitiailzation of TX structures. It could block sending traffic.
- Also remove unused variables 'eims' and 'active_queues'.
Submitted by: Krzysztof Galazka <firstname.lastname@example.org>
Reviewed by: erj@
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D20826