1. 30 10月, 2013 6 次提交
    • L
      net: mvmdio: make orion_mdio_wait_ready consistent · b70cd1c1
      Leigh Brown 提交于
      Amend orion_mdio_wait_ready so that the same timeout is used when
      polling or using wait_event_timeout.  Set the timeout to 1ms.
      
      Replace udelay with usleep_range to avoid a busy loop, and set the
      polling interval range as 45us to 55us, so that the first sleep
      will be enough in almost all cases.
      
      Generate the same log message at timeout when polling or using
      wait_event_timeout.
      Signed-off-by: NLeigh Brown <leigh@solinno.co.uk>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b70cd1c1
    • G
      net/benet: Make lancer_wait_ready() static · 87f20c26
      Gavin Shan 提交于
      The function needn't to be public, so to make it as static.
      Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      87f20c26
    • G
      net/benet: Remove interface type · 547e2dae
      Gavin Shan 提交于
      The interface type, which is being traced by "struct be_adapter::
      if_type", isn't used currently. So we can remove that safely
      according to Sathya's comments.
      Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      547e2dae
    • J
      netconsole: Convert to pr_<level> · 22ded577
      Joe Perches 提交于
      Use a more current logging style.
      
      Convert printks to pr_<level>.
      
      Consolidate multiple printks into a single printk to avoid
      any possible dmesg interleaving.  Add a default "event" msg
      in case the listed types are ever expanded.
      Signed-off-by: NJoe Perches <joe@perches.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      22ded577
    • D
      net: sched: cls_bpf: add BPF-based classifier · 7d1d65cb
      Daniel Borkmann 提交于
      This work contains a lightweight BPF-based traffic classifier that can
      serve as a flexible alternative to ematch-based tree classification, i.e.
      now that BPF filter engine can also be JITed in the kernel. Naturally, tc
      actions and policies are supported as well with cls_bpf. Multiple BPF
      programs/filter can be attached for a class, or they can just as well be
      written within a single BPF program, that's really up to the user how he
      wishes to run/optimize the code, e.g. also for inversion of verdicts etc.
      The notion of a BPF program's return/exit codes is being kept as follows:
      
           0: No match
          -1: Select classid given in "tc filter ..." command
        else: flowid, overwrite the default one
      
      As a minimal usage example with iproute2, we use a 3 band prio root qdisc
      on a router with sfq each as leave, and assign ssh and icmp bpf-based
      filters to band 1, http traffic to band 2 and the rest to band 3. For the
      first two bands we load the bytecode from a file, in the 2nd we load it
      inline as an example:
      
      echo 1 > /proc/sys/net/core/bpf_jit_enable
      
      tc qdisc del dev em1 root
      tc qdisc add dev em1 root handle 1: prio bands 3 priomap 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
      
      tc qdisc add dev em1 parent 1:1 sfq perturb 16
      tc qdisc add dev em1 parent 1:2 sfq perturb 16
      tc qdisc add dev em1 parent 1:3 sfq perturb 16
      
      tc filter add dev em1 parent 1: bpf run bytecode-file /etc/tc/ssh.bpf flowid 1:1
      tc filter add dev em1 parent 1: bpf run bytecode-file /etc/tc/icmp.bpf flowid 1:1
      tc filter add dev em1 parent 1: bpf run bytecode-file /etc/tc/http.bpf flowid 1:2
      tc filter add dev em1 parent 1: bpf run bytecode "`bpfc -f tc -i misc.ops`" flowid 1:3
      
      BPF programs can be easily created and passed to tc, either as inline
      'bytecode' or 'bytecode-file'. There are a couple of front-ends that can
      compile opcodes, for example:
      
      1) People familiar with tcpdump-like filters:
      
         tcpdump -iem1 -ddd port 22 | tr '\n' ',' > /etc/tc/ssh.bpf
      
      2) People that want to low-level program their filters or use BPF
         extensions that lack support by libpcap's compiler:
      
         bpfc -f tc -i ssh.ops > /etc/tc/ssh.bpf
      
         ssh.ops example code:
         ldh [12]
         jne #0x800, drop
         ldb [23]
         jneq #6, drop
         ldh [20]
         jset #0x1fff, drop
         ldxb 4 * ([14] & 0xf)
         ldh [%x + 14]
         jeq #0x16, pass
         ldh [%x + 16]
         jne #0x16, drop
         pass: ret #-1
         drop: ret #0
      
      It was chosen to load bytecode into tc, since the reverse operation,
      tc filter list dev em1, is then able to show the exact commands again.
      Possible follow-up work could also include a small expression compiler
      for iproute2. Tested with the help of bmon. This idea came up during
      the Netfilter Workshop 2013 in Copenhagen. Also thanks to feedback from
      Eric Dumazet!
      Signed-off-by: NDaniel Borkmann <dborkman@redhat.com>
      Cc: Thomas Graf <tgraf@suug.ch>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7d1d65cb
    • R
      bgmac: separate RX descriptor setup code into a new function · d549c76b
      Rafał Miłecki 提交于
      This cleans code a bit and will be useful when allocating buffers in
      other places (like RX path, to avoid skb_copy_from_linear_data_offset).
      Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d549c76b
  2. 29 10月, 2013 13 次提交
  3. 28 10月, 2013 13 次提交
  4. 26 10月, 2013 6 次提交
    • D
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next · a00f6fcc
      David S. Miller 提交于
      Jeff Kirsher says:
      
      ====================
      Intel Wired LAN Driver Updates
      
      This series contains updates to igb, igbvf, i40e, ixgbe and ixgbevf.
      
      Dan Carpenter provides a patch for igbvf to fix a bug found by a static
      checker.  If the new MTU is very large, then "new_mtu + ETH_HLEN +
      ETH_FCS_LEN" can wrap and the check on the next line can underflow.
      
      Wei Yongjun provides 2 patches, the first against igbvf adds a missing
      iounmap() before the return from igbvf_probe().  The second against
      i40e, removes the include <linux/version.h> because it is not needed.
      
      Carolyn provides a patch for igb to fix a call to set the master/slave
      mode for all m88 generation 2 PHY's and removes the call for I210
      devices which do not need it.
      
      Stefan Assmann provides a patch for igb to fix an issue which was broke
      by:
         commit fa44f2f1
         Author: Greg Rose <gregory.v.rose@intel.com>
         Date:   Thu Jan 17 01:03:06 2013 -0800
         igb: Enable SR-IOV configuration via PCI sysfs interface
      which breaks the reloading of igb when VFs are assigned to a guest, in
      several ways.
      
      Jacob provides a patch for ixgbe and ixgbevf.  First, against ixgbe,
      cleans up ixgbe_enumerate_functions to reduce code complexity.  The
      second, against ixgbevf, adds support for ethtool's get_coalesce and
      set_coalesce command for the ixgbevf driver.
      
      Yijing Wang provides a patch for ixgbe to use pcie_capability_read_word()
      to simplify the code.
      
      Emil provides a ixgbe patch to fix an issue where the logic used to
      detect changes in rx-usecs was incorrect and was masked by the call to
      ixgbe_update_rsc().
      
      Don provides 2 patches for ixgbevf.  First creates a new function to set
      PSRTYPE.  The second bumps the ixgbevf driver version.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a00f6fcc
    • A
      net: fix rtnl notification in atomic context · 7f294054
      Alexei Starovoitov 提交于
      commit 991fb3f7 "dev: always advertise rx_flags changes via netlink"
      introduced rtnl notification from __dev_set_promiscuity(),
      which can be called in atomic context.
      
      Steps to reproduce:
      ip tuntap add dev tap1 mode tap
      ifconfig tap1 up
      tcpdump -nei tap1 &
      ip tuntap del dev tap1 mode tap
      
      [  271.627994] device tap1 left promiscuous mode
      [  271.639897] BUG: sleeping function called from invalid context at mm/slub.c:940
      [  271.664491] in_atomic(): 1, irqs_disabled(): 0, pid: 3394, name: ip
      [  271.677525] INFO: lockdep is turned off.
      [  271.690503] CPU: 0 PID: 3394 Comm: ip Tainted: G        W    3.12.0-rc3+ #73
      [  271.703996] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012
      [  271.731254]  ffffffff81a58506 ffff8807f0d57a58 ffffffff817544e5 ffff88082fa0f428
      [  271.760261]  ffff8808071f5f40 ffff8807f0d57a88 ffffffff8108bad1 ffffffff81110ff8
      [  271.790683]  0000000000000010 00000000000000d0 00000000000000d0 ffff8807f0d57af8
      [  271.822332] Call Trace:
      [  271.838234]  [<ffffffff817544e5>] dump_stack+0x55/0x76
      [  271.854446]  [<ffffffff8108bad1>] __might_sleep+0x181/0x240
      [  271.870836]  [<ffffffff81110ff8>] ? rcu_irq_exit+0x68/0xb0
      [  271.887076]  [<ffffffff811a80be>] kmem_cache_alloc_node+0x4e/0x2a0
      [  271.903368]  [<ffffffff810b4ddc>] ? vprintk_emit+0x1dc/0x5a0
      [  271.919716]  [<ffffffff81614d67>] ? __alloc_skb+0x57/0x2a0
      [  271.936088]  [<ffffffff810b4de0>] ? vprintk_emit+0x1e0/0x5a0
      [  271.952504]  [<ffffffff81614d67>] __alloc_skb+0x57/0x2a0
      [  271.968902]  [<ffffffff8163a0b2>] rtmsg_ifinfo+0x52/0x100
      [  271.985302]  [<ffffffff8162ac6d>] __dev_notify_flags+0xad/0xc0
      [  272.001642]  [<ffffffff8162ad0c>] __dev_set_promiscuity+0x8c/0x1c0
      [  272.017917]  [<ffffffff81731ea5>] ? packet_notifier+0x5/0x380
      [  272.033961]  [<ffffffff8162b109>] dev_set_promiscuity+0x29/0x50
      [  272.049855]  [<ffffffff8172e937>] packet_dev_mc+0x87/0xc0
      [  272.065494]  [<ffffffff81732052>] packet_notifier+0x1b2/0x380
      [  272.080915]  [<ffffffff81731ea5>] ? packet_notifier+0x5/0x380
      [  272.096009]  [<ffffffff81761c66>] notifier_call_chain+0x66/0x150
      [  272.110803]  [<ffffffff8108503e>] __raw_notifier_call_chain+0xe/0x10
      [  272.125468]  [<ffffffff81085056>] raw_notifier_call_chain+0x16/0x20
      [  272.139984]  [<ffffffff81620190>] call_netdevice_notifiers_info+0x40/0x70
      [  272.154523]  [<ffffffff816201d6>] call_netdevice_notifiers+0x16/0x20
      [  272.168552]  [<ffffffff816224c5>] rollback_registered_many+0x145/0x240
      [  272.182263]  [<ffffffff81622641>] rollback_registered+0x31/0x40
      [  272.195369]  [<ffffffff816229c8>] unregister_netdevice_queue+0x58/0x90
      [  272.208230]  [<ffffffff81547ca0>] __tun_detach+0x140/0x340
      [  272.220686]  [<ffffffff81547ed6>] tun_chr_close+0x36/0x60
      Signed-off-by: NAlexei Starovoitov <ast@plumgrid.com>
      Acked-by: NNicolas Dichtel <nicolas.dichtel@6wind.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7f294054
    • H
      net: initialize hashrnd in flow_dissector with net_get_random_once · 66415cf8
      Hannes Frederic Sowa 提交于
      We also can defer the initialization of hashrnd in flow_dissector
      to its first use. Since net_get_random_once is irq safe now we don't
      have to audit the call paths if one of this functions get called by an
      interrupt handler.
      
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Eric Dumazet <edumazet@google.com>
      Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      66415cf8
    • H
      net: make net_get_random_once irq safe · f84be2bd
      Hannes Frederic Sowa 提交于
      I initial build non irq safe version of net_get_random_once because I
      would liked to have the freedom to defer even the extraction process of
      get_random_bytes until the nonblocking pool is fully seeded.
      
      I don't think this is a good idea anymore and thus this patch makes
      net_get_random_once irq safe. Now someone using net_get_random_once does
      not need to care from where it is called.
      
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Eric Dumazet <edumazet@google.com>
      Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f84be2bd
    • N
      net: add missing dev_put() in __netdev_adjacent_dev_insert · 974daef7
      Nikolay Aleksandrov 提交于
      I think that a dev_put() is needed in the error path to preserve the
      proper dev refcount.
      
      CC: Veaceslav Falico <vfalico@redhat.com>
      Signed-off-by: NNikolay Aleksandrov <nikolay@redhat.com>
      Acked-by: NVeaceslav Falico <vfalico@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      974daef7
    • H
      netem: markov loss model transition fix · 4a3ad7b3
      Hagen Paul Pfeifer 提交于
      The transition from markov state "3 => lost packets within a burst
      period" to "1 => successfully transmitted packets within a gap period"
      has no *additional* loss event. The loss already happen for transition
      from 1 -> 3, this additional loss will make things go wild.
      
      E.g. transition probabilities:
      
      p13:   10%
      p31:  100%
      
      Expected:
      
      Ploss = p13 / (p13 + p31)
      Ploss = ~9.09%
      
      ... but it isn't. Even worse: we get a double loss - each time.
      So simple don't return true to indicate loss, rather break and return
      false.
      Signed-off-by: NHagen Paul Pfeifer <hagen@jauu.net>
      Cc: Stephen Hemminger <stephen@networkplumber.org>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: Stefano Salsano <stefano.salsano@uniroma2.it>
      Cc: Fabio Ludovici <fabio.ludovici@yahoo.it>
      Signed-off-by: NHagen Paul Pfeifer <hagen@jauu.net>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4a3ad7b3
  5. 24 10月, 2013 2 次提交
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