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- Don't allow an unprivileged user to set the stride. [1] - Only set the stride under the softc lock. - Rename the internal fields to accurately reflect their use. Keep ro_bkt to avoid changing the user API. - Simplify the implementation. The port index is just sc_seq / stride. - Document rr_limit in ifconfig.8. Reported by: Ilja Van Sprundel <ivansprundel@ioactive.com> [1] MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D22857