• Daniel Borkmann's avatar
    selftests: net: add PF_PACKET TPACKET v1/v2/v3 selftests · 23a95442
    Daniel Borkmann authored
    This patch adds a simple test case that probes the packet socket's
    TPACKET_V1, TPACKET_V2 and TPACKET_V3 behavior regarding mmap(2)'ed
    I/O for a small burst of 100 packets. The test currently runs for ...
    
      TPACKET_V1: RX_RING, TX_RING
      TPACKET_V2: RX_RING, TX_RING
      TPACKET_V3: RX_RING
    
    ... and will output on success:
    
      test: TPACKET_V1 with PACKET_RX_RING .................... 100 pkts (9600 bytes)
      test: TPACKET_V1 with PACKET_TX_RING .................... 100 pkts (9600 bytes)
      test: TPACKET_V2 with PACKET_RX_RING .................... 100 pkts (9600 bytes)
      test: TPACKET_V2 with PACKET_TX_RING .................... 100 pkts (9600 bytes)
      test: TPACKET_V3 with PACKET_RX_RING .................... 100 pkts (9600 bytes)
      OK. All tests passed
    
    Reusable parts of psock_fanout.c have been put into a psock_lib.h
    file for common usage. Test case successfully tested on x86_64.
    Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    23a95442
run_afpackettests 416 Bytes