1. 25 Feb, 2014 1 commit
    • Daniel Borkmann's avatar
      loopback: sctp: add NETIF_F_SCTP_CSUM to device features · b17c7069
      Daniel Borkmann authored
      Drivers are allowed to set NETIF_F_SCTP_CSUM if they have
      hardware crc32c checksumming support for the SCTP protocol.
      Currently, NETIF_F_SCTP_CSUM flag is available in igb,
      ixgbe, i40e/i40evf drivers and for vlan devices.
      
      If we don't have NETIF_F_SCTP_CSUM then crc32c is done
      through CPU instructions, invoked from crypto layer, or
      if not available as slow-path fallback in software.
      
      Currently, loopback device propagates checksum offloading
      feature flags in dev->features, but is missing SCTP checksum
      offloading. Therefore, account for NETIF_F_SCTP_CSUM as
      well.
      
      Before patch:
      
      ./netperf_sctp -H 192.168.0.100 -t SCTP_STREAM_MANY
      SCTP 1-TO-MANY STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.0.100 () port 0 AF_INET
      Recv   Send    Send
      Socket Socket  Message  Elapsed
      Size   Size    Size     Time     Throughput
      bytes  bytes   bytes    secs.    10^6bits/sec
      
      4194304 4194304   4096    10.00    4683.50
      
      After patch:
      
      ./netperf_sctp -H 192.168.0.100 -t SCTP_STREAM_MANY
      SCTP 1-TO-MANY STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.0.100 () port 0 AF_INET
      Recv   Send    Send
      Socket Socket  Message  Elapsed
      Size   Size    Size     Time     Throughput
      bytes  bytes   bytes    secs.    10^6bits/sec
      
      4194304 4194304   4096    10.00    15348.26
      Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b17c7069
  2. 24 Feb, 2014 18 commits
  3. 21 Feb, 2014 17 commits
  4. 20 Feb, 2014 4 commits