Commit f6fb8f10 authored by chetan loke's avatar chetan loke Committed by David S. Miller
Browse files

af-packet: TPACKET_V3 flexible buffer implementation.



1) Blocks can be configured with non-static frame-size.
2) Read/poll is at a block-level(as opposed to packet-level).
3) Added poll timeout to avoid indefinite user-space wait on idle links.
4) Added user-configurable knobs:
   4.1) block::timeout.
   4.2) tpkt_hdr::sk_rxhash.

Changes:
C1) tpacket_rcv()
    C1.1) packet_current_frame() is replaced by packet_current_rx_frame()
          The bulk of the processing is then moved in the following chain:
          packet_current_rx_frame()
            __packet_lookup_frame_in_block
              fill_curr_block()
              or
                retire_current_block
                dispatch_next_block
              or
              return NULL(queue is plugged/paused)
Signed-off-by: default avatarChetan Loke <loke.chetan@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0d4691ce
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