1. 05 9月, 2009 12 次提交
  2. 04 9月, 2009 2 次提交
  3. 03 9月, 2009 12 次提交
    • E
      net: Remove debugging code · 55f9d678
      Eric Dumazet 提交于
      Remove a debugging aid I accidently left in previous 'cleanup' patch
      Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      55f9d678
    • E
      vlan: enable multiqueue xmits · 2f8bc32b
      Eric Dumazet 提交于
      vlan_dev_hard_start_xmit() & vlan_dev_hwaccel_hard_start_xmit()
      select txqueue number 0, instead of using index provided by
      skb_get_queue_mapping().
      
      This is not correct after commit 2e59af3d
      [vlan: multiqueue vlan device] because
      txq->tx_packets  & txq->tx_bytes changes are performed on
      a single location, and not the right locking.
      
      Fix is to take the appropriate struct netdev_queue pointer
      Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2f8bc32b
    • E
      net: net/core/dev.c cleanups · d1b19dff
      Eric Dumazet 提交于
      Pure style cleanup patch before surgery :)
      Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d1b19dff
    • K
      atm/br2684: netif_stop_queue() when atm device busy and netif_wake_queue()... · 137742cf
      Karl Hiramoto 提交于
      atm/br2684: netif_stop_queue() when atm device busy and netif_wake_queue() when we can send packets again.
      
      This patch removes the call to dev_kfree_skb() when the atm device is busy.
      Calling dev_kfree_skb() causes heavy packet loss then the device is under
      heavy load, the more correct behavior should be to stop the upper layers,
      then when the lower device can queue packets again wake the upper layers.
      Signed-off-by: NKarl Hiramoto <karl@hiramoto.org>
      Signed-off-by: NChas Williams <chas@cmf.nrl.navy.mil>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      137742cf
    • W
      tcp: replace hard coded GFP_KERNEL with sk_allocation · aa133076
      Wu Fengguang 提交于
      This fixed a lockdep warning which appeared when doing stress
      memory tests over NFS:
      
      	inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage.
      
      	page reclaim => nfs_writepage => tcp_sendmsg => lock sk_lock
      
      	mount_root => nfs_root_data => tcp_close => lock sk_lock =>
      			tcp_send_fin => alloc_skb_fclone => page reclaim
      
      David raised a concern that if the allocation fails in tcp_send_fin(), and it's
      GFP_ATOMIC, we are going to yield() (which sleeps) and loop endlessly waiting
      for the allocation to succeed.
      
      But fact is, the original GFP_KERNEL also sleeps. GFP_ATOMIC+yield() looks
      weird, but it is no worse the implicit sleep inside GFP_KERNEL. Both could
      loop endlessly under memory pressure.
      
      CC: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
      CC: David S. Miller <davem@davemloft.net>
      CC: Herbert Xu <herbert@gondor.apana.org.au>
      Signed-off-by: NWu Fengguang <fengguang.wu@intel.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      aa133076
    • A
      net/ethtool: Add support for the ethtool feature to flash firmware image from a specified file. · 05c6a8d7
      Ajit Khaparde 提交于
      This patch adds support to flash a firmware image to a device using ethtool.
      The driver gets the filename of the firmware image and flashes the image
      using the request firmware path.
      
      The region "on the chip" to be flashed can be specified by an option.
      It is upto the device driver to enumerate the region number passed by ethtool,
      to the region to be flashed.
      
      The default behavior is to flash all the regions on the chip.
      Signed-off-by: NAjit Khaparde <ajitk@serverengines.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      05c6a8d7
    • E
      ip: Report qdisc packet drops · 6ce9e7b5
      Eric Dumazet 提交于
      Christoph Lameter pointed out that packet drops at qdisc level where not
      accounted in SNMP counters. Only if application sets IP_RECVERR, drops
      are reported to user (-ENOBUFS errors) and SNMP counters updated.
      
      IP_RECVERR is used to enable extended reliable error message passing,
      but these are not needed to update system wide SNMP stats.
      
      This patch changes things a bit to allow SNMP counters to be updated,
      regardless of IP_RECVERR being set or not on the socket.
      
      Example after an UDP tx flood
      # netstat -s 
      ...
      IP:
          1487048 outgoing packets dropped
      ...
      Udp:
      ...
          SndbufErrors: 1487048
      
      
      send() syscalls, do however still return an OK status, to not
      break applications.
      
      Note : send() manual page explicitly says for -ENOBUFS error :
      
       "The output queue for a network interface was full.
        This generally indicates that the interface has stopped sending,
        but may be caused by transient congestion.
        (Normally, this does not occur in Linux. Packets are just silently
        dropped when a device queue overflows.) "
      
      This is not true for IP_RECVERR enabled sockets : a send() syscall
      that hit a qdisc drop returns an ENOBUFS error.
      
      Many thanks to Christoph, David, and last but not least, Alexey !
      Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6ce9e7b5
    • E
      vlan: multiqueue vlan device · 2e59af3d
      Eric Dumazet 提交于
      vlan devices are currently not multi-queue capable.
      
      We can do that with a new rtnl_link_ops method,
      get_tx_queues(), called from rtnl_create_link()
      
      This new method gets num_tx_queues/real_num_tx_queues
      from real device.
      
      register_vlan_device() is also handled.
      Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2e59af3d
    • N
      net: drop_monitor: make last_rx timestamp private · 5848cc09
      Neil Horman 提交于
      It was recently pointed out to me that the last_rx field of the
      net_device structure wasn't updated regularly.  In fact only the
      bonding driver really uses it currently.  Since the drop_monitor code
      relies on the last_rx field to detect drops on recevie in hardware, We
      need to find a more reliable way to rate limit our drop checks (so
      that we don't check for drops on every frame recevied, which would be
      inefficient.  This patch makes a last_rx timestamp that is private to
      the drop monitor code and is updated for every device that we track.
      Signed-off-by: NNeil Horman <nhorman@tuxdriver.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      5848cc09
    • B
      cfg80211: fix looping soft lockup in find_ie() · fcc6cb0c
      Bob Copeland 提交于
      The find_ie() function uses a size_t for the len parameter, and
      directly uses len as a loop variable.  If any received packets
      are malformed, it is possible for the decrease of len to overflow,
      and since the result is unsigned, the loop will not terminate.
      Change it to a signed int so the loop conditional works for
      negative values.
      
      This fixes the following soft lockup:
      
      [38573.102007] BUG: soft lockup - CPU#0 stuck for 61s! [phy0:2230]
      [38573.102007] Modules linked in: aes_i586 aes_generic fuse af_packet ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state iptable_filter ip_tables x_tables acpi_cpufreq binfmt_misc dm_mirror dm_region_hash dm_log dm_multipath dm_mod kvm_intel kvm uinput i915 arc4 ecb drm snd_hda_codec_idt ath5k snd_hda_intel hid_apple mac80211 usbhid appletouch snd_hda_codec snd_pcm ath cfg80211 snd_timer i2c_algo_bit ohci1394 video snd processor ieee1394 rfkill ehci_hcd sg sky2 backlight snd_page_alloc uhci_hcd joydev output ac thermal button battery sr_mod applesmc cdrom input_polldev evdev unix [last unloaded: scsi_wait_scan]
      [38573.102007] irq event stamp: 2547724535
      [38573.102007] hardirqs last  enabled at (2547724534): [<c1002ffc>] restore_all_notrace+0x0/0x18
      [38573.102007] hardirqs last disabled at (2547724535): [<c10038f4>] apic_timer_interrupt+0x28/0x34
      [38573.102007] softirqs last  enabled at (92950144): [<c103ab48>] __do_softirq+0x108/0x210
      [38573.102007] softirqs last disabled at (92950274): [<c1348e74>] _spin_lock_bh+0x14/0x80
      [38573.102007]
      [38573.102007] Pid: 2230, comm: phy0 Tainted: G        W  (2.6.31-rc7-wl #8) MacBook1,1
      [38573.102007] EIP: 0060:[<f8ea2d50>] EFLAGS: 00010292 CPU: 0
      [38573.102007] EIP is at cmp_ies+0x30/0x180 [cfg80211]
      [38573.102007] EAX: 00000082 EBX: 00000000 ECX: ffffffc1 EDX: d8efd014
      [38573.102007] ESI: ffffff7c EDI: 0000004d EBP: eee2dc50 ESP: eee2dc3c
      [38573.102007]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
      [38573.102007] CR0: 8005003b CR2: d8efd014 CR3: 01694000 CR4: 000026d0
      [38573.102007] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
      [38573.102007] DR6: ffff0ff0 DR7: 00000400
      [38573.102007] Call Trace:
      [38573.102007]  [<f8ea2f8d>] cmp_bss+0xed/0x100 [cfg80211]
      [38573.102007]  [<f8ea33e4>] cfg80211_bss_update+0x84/0x410 [cfg80211]
      [38573.102007]  [<f8ea3884>] cfg80211_inform_bss_frame+0x114/0x180 [cfg80211]
      [38573.102007]  [<f97255ff>] ieee80211_bss_info_update+0x4f/0x180 [mac80211]
      [38573.102007]  [<f972b118>] ieee80211_rx_bss_info+0x88/0xf0 [mac80211]
      [38573.102007]  [<f9739297>] ? ieee802_11_parse_elems+0x27/0x30 [mac80211]
      [38573.102007]  [<f972b224>] ieee80211_rx_mgmt_probe_resp+0xa4/0x1c0 [mac80211]
      [38573.102007]  [<f972bc59>] ieee80211_sta_rx_queued_mgmt+0x919/0xc50 [mac80211]
      [38573.102007]  [<c1009707>] ? sched_clock+0x27/0xa0
      [38573.102007]  [<c1009707>] ? sched_clock+0x27/0xa0
      [38573.102007]  [<c105ffd0>] ? mark_held_locks+0x60/0x80
      [38573.102007]  [<c1348be5>] ? _spin_unlock_irqrestore+0x55/0x70
      [38573.102007]  [<c134baa5>] ? sub_preempt_count+0x85/0xc0
      [38573.102007]  [<c1348bce>] ? _spin_unlock_irqrestore+0x3e/0x70
      [38573.102007]  [<c12c1c0f>] ? skb_dequeue+0x4f/0x70
      [38573.102007]  [<f972c021>] ieee80211_sta_work+0x91/0xb80 [mac80211]
      [38573.102007]  [<c1009707>] ? sched_clock+0x27/0xa0
      [38573.102007]  [<c134baa5>] ? sub_preempt_count+0x85/0xc0
      [38573.102007]  [<c10479af>] worker_thread+0x18f/0x320
      [38573.102007]  [<c104794e>] ? worker_thread+0x12e/0x320
      [38573.102007]  [<c1348be5>] ? _spin_unlock_irqrestore+0x55/0x70
      [38573.102007]  [<f972bf90>] ? ieee80211_sta_work+0x0/0xb80 [mac80211]
      [38573.102007]  [<c104cbb0>] ? autoremove_wake_function+0x0/0x50
      [38573.102007]  [<c1047820>] ? worker_thread+0x0/0x320
      [38573.102007]  [<c104c854>] kthread+0x84/0x90
      [38573.102007]  [<c104c7d0>] ? kthread+0x0/0x90
      [38573.102007]  [<c1003ab7>] kernel_thread_helper+0x7/0x10
      
      Cc: stable@kernel.org
      Signed-off-by: NBob Copeland <me@bobcopeland.com>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      fcc6cb0c
    • L
      wireless: remove mac80211 rate selection extra menu · abd8ea22
      Luis R. Rodriguez 提交于
      We can just display this upon enabling mac80211 with an
      'if MAC80211 != n' check.
      
      Cc: Johannes Berg <johannes@sipsolutions.net>
      Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      abd8ea22
    • L
      wireless: update reg debug kconfig entry · 253850c1
      Luis R. Rodriguez 提交于
      Refer to the wireless wiki for more information.
      Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      253850c1
  4. 02 9月, 2009 10 次提交
  5. 01 9月, 2009 4 次提交