1. 03 Nov, 2015 13 commits
  2. 22 Oct, 2015 19 commits
  3. 21 Oct, 2015 8 commits
    • Vivien Didelot's avatar
      net: mdio-gpio: move platform data header · e2aacd96
      Vivien Didelot authored
      This header file only contains the platform data structure definition,
      so move it to the include/linux/platform_data/ directory.
      Signed-off-by: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e2aacd96
    • Vivien Didelot's avatar
      ARM: gemini: remove unnecessary mdio-gpio includes · 844338e5
      Vivien Didelot authored
      Remove the inclusion of linux/mdio-gpio.h in nas4220b, wbd111 and wbd222
      boards since mdio-gpio is not used.
      Signed-off-by: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      844338e5
    • Wu Fengguang's avatar
      net: hisilicon: fix ptr_ret.cocci warnings · c6aa74d5
      Wu Fengguang authored
      drivers/net/ethernet/hisilicon/hns/hnae.c:442:1-3: WARNING: PTR_ERR_OR_ZERO can be used
      
       Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
      
      Generated by: scripts/coccinelle/api/ptr_ret.cocci
      
      CC: Arnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarFengguang Wu <fengguang.wu@intel.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c6aa74d5
    • Eric Dumazet's avatar
      ipv6: gro: support sit protocol · feec0cb3
      Eric Dumazet authored
      Tom Herbert added SIT support to GRO with commit
      19424e05 ("sit: Add gro callbacks to sit_offload"),
      later reverted by Herbert Xu.
      
      The problem came because Tom patch was building GRO
      packets without proper meta data : If packets were locally
      delivered, we would not care.
      
      But if packets needed to be forwarded, GSO engine was not
      able to segment individual segments.
      
      With the following patch, we correctly set skb->encapsulation
      and inner network header. We also update gso_type.
      
      Tested:
      
      Server :
      netserver
      modprobe dummy
      ifconfig dummy0 8.0.0.1 netmask 255.255.255.0 up
      arp -s 8.0.0.100 4e:32:51:04:47:e5
      iptables -I INPUT -s 10.246.7.151 -j TEE --gateway 8.0.0.100
      ifconfig sixtofour0
      sixtofour0 Link encap:IPv6-in-IPv4
                inet6 addr: 2002:af6:798::1/128 Scope:Global
                inet6 addr: 2002:af6:798::/128 Scope:Global
                UP RUNNING NOARP  MTU:1480  Metric:1
                RX packets:411169 errors:0 dropped:0 overruns:0 frame:0
                TX packets:409414 errors:0 dropped:0 overruns:0 carrier:0
                collisions:0 txqueuelen:0
                RX bytes:20319631739 (20.3 GB)  TX bytes:29529556 (29.5 MB)
      
      Client :
      netperf -H 2002:af6:798::1 -l 1000 &
      
      Checked on server traffic copied on dummy0 and verify segments were
      properly rebuilt, with proper IP headers, TCP checksums...
      
      tcpdump on eth0 shows proper GRO aggregation takes place.
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Acked-by: default avatarTom Herbert <tom@herbertland.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      feec0cb3
    • Eric Dumazet's avatar
      net: dummy: add more features · 8f3af277
      Eric Dumazet authored
      While testing my SIT/GRO patch using netfilter TEE module and a dummy
      device, I found some features were missing :
      
      TSO IPv6, UFO, and encapsulated traffic.
      
      ethtool -k dummy0 now gives :
      ...
      tcp-segmentation-offload: on
      	tx-tcp-segmentation: on
      	tx-tcp-ecn-segmentation: on
      	tx-tcp6-segmentation: on
      udp-fragmentation-offload: on
      ...
      tx-gre-segmentation: on
      tx-ipip-segmentation: on
      tx-sit-segmentation: on
      tx-udp_tnl-segmentation: on
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8f3af277
    • Arad, Ronen's avatar
      netlink: Rightsize IFLA_AF_SPEC size calculation · b1974ed0
      Arad, Ronen authored
      if_nlmsg_size() overestimates the minimum allocation size of netlink
      dump request (when called from rtnl_calcit()) or the size of the
      message (when called from rtnl_getlink()). This is because
      ext_filter_mask is not supported by rtnl_link_get_af_size() and
      rtnl_link_get_size().
      
      The over-estimation is significant when at least one netdev has many
      VLANs configured (8 bytes for each configured VLAN).
      
      This patch-set "rightsizes" the protocol specific attribute size
      calculation by propagating ext_filter_mask to rtnl_link_get_af_size()
      and adding this a argument to get_link_af_size op in rtnl_af_ops.
      
      Bridge module already used filtering aware sizing for notifications.
      br_get_link_af_size_filtered() is consistent with the modified
      get_link_af_size op so it replaces br_get_link_af_size() in br_af_ops.
      br_get_link_af_size() becomes unused and thus removed.
      Signed-off-by: default avatarRonen Arad <ronen.arad@intel.com>
      Acked-by: default avatarSridhar Samudrala <sridhar.samudrala@intel.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b1974ed0
    • Elad Raz's avatar
      Adding switchdev ageing notification on port bridged · 6ac311ae
      Elad Raz authored
      Configure ageing time to the HW for newly bridged device
      
      CC: Scott Feldman <sfeldma@gmail.com>
      CC: Jiri Pirko <jiri@resnulli.us>
      Signed-off-by: default avatarElad Raz <eladr@mellanox.com>
      Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
      Acked-by: default avatarScott Feldman <sfeldma@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6ac311ae
    • David S. Miller's avatar
      Merge branch 'tcp-rack' · eb9fae32
      David S. Miller authored
      Yuchung Cheng says:
      
      ====================
      RACK loss detection
      
      RACK (Recent ACK) loss recovery uses the notion of time instead of
      packet sequence (FACK) or counts (dupthresh).
      
      It's inspired by the FACK heuristic in tcp_mark_lost_retrans(): when a
      limited transmit (new data packet) is sacked in recovery, then any
      retransmission sent before that newly sacked packet was sent must have
      been lost, since at least one round trip time has elapsed.
      
      But that existing heuristic from tcp_mark_lost_retrans()
      has several limitations:
        1) it can't detect tail drops since it depends on limited transmit
        2) it's disabled upon reordering (assumes no reordering)
        3) it's only enabled in fast recovery but not timeout recovery
      
      RACK addresses these limitations with a core idea: an unacknowledged
      packet P1 is deemed lost if a packet P2 that was sent later is is
      s/acked, since at least one round trip has passed.
      
      Since RACK cares about the time sequence instead of the data sequence
      of packets, it can detect tail drops when a later retransmission is
      s/acked, while FACK or dupthresh can't. For reordering RACK uses a
      dynamically adjusted reordering window ("reo_wnd") to reduce false
      positives on ever (small) degree of reordering, similar to the delayed
      Early Retransmit.
      
      In the current patch set RACK is only a supplemental loss detection
      and does not trigger fast recovery. However we are developing RACK
      to replace or consolidate FACK/dupthresh, early retransmit, and
      thin-dupack. These heuristics all implicitly bear the time notion.
      For example, the delayed Early Retransmit is simply applying RACK
      to trigger the fast recovery with small inflight.
      
      RACK requires measuring the minimum RTT. Tracking a global min is less
      robust due to traffic engineering pathing changes. Therefore it uses a
      windowed filter by Kathleen Nichols. The min RTT can also be useful
      for various other purposes like congestion control or stat monitoring.
      
      This patch has been used on Google servers for well over 1 year. RACK
      has also been implemented in the QUIC protocol. We are submitting an
      IETF draft as well.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      eb9fae32