7544c1d20d
ni_txseqs is kept as 16-bit counter, but we need to trim the upper four bits as they may have special meanings for the firmware / hardware. For instance, bit 15 enables hardware / firmware generation of sequence numbers that overrides sequence numbers programmed by the driver. Reviewed by: adrian MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D30814