• Gleb Smirnoff's avatar
    tcp_hpts: rename input queue to drop queue and trim dead code · f971e791
    Gleb Smirnoff authored
    The HPTS input queue is in reality used only for "delayed drops".
    When a TCP stack decides to drop a connection on the output path
    it can't do that due to locking protocol between main tcp_output()
    and stacks.  So, rack/bbr utilize HPTS to drop the connection in
    a different context.
    In the past the queue could also process input packets in context
    of HPTS thread, but now no stack uses this, so remove this
    Reviewed by:		rrs
    Differential revision:	https://reviews.freebsd.org/D33025