1. 28 May, 2020 2 commits
    • Vladimir Oltean's avatar
      net: dsa: sja1105: offload the Credit-Based Shaper qdisc · 4d752508
      Vladimir Oltean authored
      SJA1105, being AVB/TSN switches, provide hardware assist for the
      Credit-Based Shaper as described in the IEEE 8021Q-2018 document.
      
      First generation has 10 shapers, freely assignable to any of the 4
      external ports and 8 traffic classes, and second generation has 16
      shapers.
      
      The Credit-Based Shaper tables are accessed through the dynamic
      reconfiguration interface, so we have to restore them manually after a
      switch reset. The tables are backed up by the static config only on
      P/Q/R/S, and we don't want to add custom code only for that family,
      since the procedure that is in place now works for both.
      
      Tested with the following commands:
      
      data_rate_kbps=67000
      port_transmit_rate_kbps=1000000
      idleslope=$data_rate_kbps
      sendslope=$(($idleslope - $port_transmit_rate_kbps))
      locredit=$((-0x80000000))
      hicredit=$((0x7fffffff))
      tc qdisc add dev swp2 root handle 1: mqprio hw 0 num_tc 8 \
              map 0 1 2 3 4 5 6 7 \
              queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7
      tc qdisc replace dev swp2 parent 1:1 cbs \
              idleslope $idleslope \
              sendslope $sendslope \
              hicredit $hicredit \
              locredit $locredit \
              offload 1
      Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4d752508
    • David Ahern's avatar
      selftests: Add torture tests to nexthop tests · 7c741868
      David Ahern authored
      Add Nik's torture tests as a new set to stress the replace and cleanup
      paths.
      
      Torture test created by Nikolay Aleksandrov and then I adapted to
      selftest and added IPv6 version.
      Signed-off-by: default avatarDavid Ahern <dsahern@kernel.org>
      Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7c741868
  2. 27 May, 2020 38 commits