1. 04 2月, 2010 1 次提交
    • L
      b43: Fix throughput regression · b6c3f5be
      Larry Finger 提交于
      Commit c7ab5ef9 entitled "b43: implement
      short slot and basic rate handling" reduced the transmit throughput for
      my BCM4311 device from 18 Mb/s to 0.7 Mb/s. The basic rate handling
      portion is OK, the problem is in the short slot handling.
      
      Prior to this change, the short slot enable/disable routines were never
      called. Experimentation showed that the critical part was changing the
      value at offset 0x0010 in the shared memory. This is supposed to contain
      the 802.11 Slot Time in usec, but if it is changed from its initial value
      of zero, performance is destroyed. On the other hand, changing the value
      in the MMIO register corresponding to the Interframe Slot Time increased
      performance from 18 to 22 Mb/s. A BCM4306/3 also shows dramatic
      improvement of the transmit rate from 5.3 to 19.0 Mb/s.
      
      Other changes in the patch include removal of the magic number for the
      MMIO register, and allowing the slot time to be set for any PHY operating
      in the 2.4 GHz band. Previously, the routine was executed only for G PHYs.
      Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
      Cc: Stable <stable@kernel.org> [Any stable version back through 2.6.28]
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      b6c3f5be
  2. 26 1月, 2010 2 次提交
  3. 20 1月, 2010 1 次提交
    • F
      ath9k: fix beacon slot/buffer leak · 74401773
      Felix Fietkau 提交于
      When cleaning up beacon buffers and slots, ath9k currently checks if
      sc->ah->opmode is set to a beacon related mode before cleaning up
      buffers.
      An unfortunate ordering of interface up/down commands can lead to
      sc->ah->opmode being set to monitor mode, while there are AP interfaces
      present on the same wiphy.
      Always cleaning up beacon buffers if present fixes this issue.
      Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
      Cc: stable@kernel.org
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      74401773
  4. 19 1月, 2010 4 次提交
  5. 15 1月, 2010 1 次提交
  6. 12 1月, 2010 1 次提交
  7. 09 1月, 2010 2 次提交
    • A
      iwlwifi: disable tx on beacon update notification · c91c3efc
      Abhijeet Kolekar 提交于
      On beacon change update notification from mac we are not disabling
      the tx in adhoc mode. Mac sends BSS_CHANGED_BEACON_ENABLED when
      station leaves IBSS. Driver should indicate uCode to not to send
      anything on receiving this notification.
      
      Functionality to indicate uCode is duplicated across
      two notifications so created a common function called iwl_set_no_assoc.
      
      Fix the issue at
      http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2133.
      Signed-off-by: NAbhijeet Kolekar <abhijeet.kolekar@intel.com>
      Tested-by: NJohannes Berg <johannes@sipsolutions.net>
      Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      c91c3efc
    • Z
      iwlwifi: fix iwl_queue_used bug when read_ptr == write_ptr · c8106d76
      Zhu Yi 提交于
      When txq read_ptr equals to write_ptr, iwl_queue_used should
      always return false. Because there is no used TFD in this case.
      
      This is a complementary fix to the fix already included in commit "iwl3945:
      fix panic in iwl3945 driver". Both fixes are needed to address the panic
      below.
      
      This problem was discussed on linux-wireless in
      http://thread.gmane.org/gmane.linux.kernel.wireless.general/43568
      
      <1>[ 7290.414172] IP: [<ffffffffa0dd53a1>] iwl3945_rx_reply_tx+0xc1/0x450 [iwl3945]
      <4>[ 7290.414205] PGD 0
      <1>[ 7290.414214] Thread overran stack, or stack corrupted
      <0>[ 7290.414229] Oops: 0002 [#1] PREEMPT SMP
      <0>[ 7290.414246] last sysfs file: /sys/devices/platform/coretemp.1/temp1_input
      <4>[ 7290.414265] CPU 0
      <4>[ 7290.414274] Modules linked in: af_packet nfsd usb_storage usb_libusual cpufreq_powersave exportfs cpufreq_conservative iwl3945 nfs cpufreq_userspace snd_hda_codec_realtek acpi_cpufreq uvcvideo lockd iwlcore snd_hda_intel joydev coretemp nfs_acl videodev snd_hda_codec mac80211 v4l1_compat snd_hwdep sbp2 v4l2_compat_ioctl32 uhci_hcd psmouse auth_rpcgss ohci1394 cfg80211 ehci_hcd video ieee1394 snd_pcm serio_raw battery ac nvidia(P) usbcore output sunrpc evdev lirc_ene0100 snd_page_alloc rfkill tg3 libphy fuse lzo lzo_decompress lzo_compress
      <6>[ 7290.414486] Pid: 0, comm: swapper Tainted: P           2.6.32-rc8-wl #213 Aspire 5720
      <6>[ 7290.414507] RIP: 0010:[<ffffffffa0dd53a1>]  [<ffffffffa0dd53a1>] iwl3945_rx_reply_tx+0xc1/0x450 [iwl3945]
      <6>[ 7290.414541] RSP: 0018:ffff880002203d60  EFLAGS: 00010246
      <6>[ 7290.414557] RAX: 000000000000004f RBX: ffff880064c11600 RCX: 0000000000000013
      <6>[ 7290.414576] RDX: ffffffffa0ddcf20 RSI: ffff8800512b7008 RDI: 0000000000000038
      <6>[ 7290.414596] RBP: ffff880002203dd0 R08: 0000000000000000 R09: 0000000000000100
      <6>[ 7290.414616] R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000000a0
      <6>[ 7290.414635] R13: 0000000000000002 R14: 0000000000000013 R15: 0000000000020201
      <6>[ 7290.414655] FS:  0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000
      <6>[ 7290.414677] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
      <6>[ 7290.414693] CR2: 0000000000000041 CR3: 0000000001001000 CR4: 00000000000006f0
      <6>[ 7290.414712] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      <6>[ 7290.414732] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
      <4>[ 7290.414752] Process swapper (pid: 0, threadinfo ffffffff81524000, task ffffffff81528b60)
      <0>[ 7290.414772] Stack:
      <4>[ 7290.414780]  ffff880002203da0 0000000000000046 0000000000000000 0000000000000046
      <4>[ 7290.414804] <0> 0000000000000282 0000000000000282 0000000000000282 ffff880064c12010
      <4>[ 7290.414830] <0> ffff880002203db0 ffff880064c11600 ffff880064c12e50 ffff8800512b7000
      <0>[ 7290.414858] Call Trace:
      <0>[ 7290.414867]  <IRQ>
      <4>[ 7290.414884]  [<ffffffffa0dc8c47>] iwl3945_irq_tasklet+0x657/0x1740 [iwl3945]
      <4>[ 7290.414910]  [<ffffffff8138fc60>] ? _spin_unlock+0x30/0x60
      <4>[ 7290.414931]  [<ffffffff81049a21>] tasklet_action+0x101/0x110
      <4>[ 7290.414950]  [<ffffffff8104a3d0>] __do_softirq+0xc0/0x160
      <4>[ 7290.414968]  [<ffffffff8100d01c>] call_softirq+0x1c/0x30
      <4>[ 7290.414986]  [<ffffffff8100eff5>] do_softirq+0x75/0xb0
      <4>[ 7290.415003]  [<ffffffff81049ee5>] irq_exit+0x95/0xa0
      <4>[ 7290.415020]  [<ffffffff8100e547>] do_IRQ+0x77/0xf0
      <4>[ 7290.415038]  [<ffffffff8100c7d3>] ret_from_intr+0x0/0xf
      <0>[ 7290.415052]  <EOI>
      <4>[ 7290.415067]  [<ffffffff81234efa>] ? acpi_idle_enter_bm+0x270/0x2a5
      <4>[ 7290.415087]  [<ffffffff81234f04>] ? acpi_idle_enter_bm+0x27a/0x2a5
      <4>[ 7290.415107]  [<ffffffff81234efa>] ? acpi_idle_enter_bm+0x270/0x2a5
      <4>[ 7290.415130]  [<ffffffff812c11f3>] ? cpuidle_idle_call+0x93/0xf0
      <4>[ 7290.415149]  [<ffffffff8100b0d7>] ? cpu_idle+0xa7/0x110
      <4>[ 7290.415168]  [<ffffffff8137b3d5>] ? rest_init+0x75/0x80
      <4>[ 7290.415187]  [<ffffffff8158cd0a>] ? start_kernel+0x3a7/0x3b3
      <4>[ 7290.415206]  [<ffffffff8158c315>] ? x86_64_start_reservations+0x125/0x129
      <4>[ 7290.415227]  [<ffffffff8158c3fd>] ? x86_64_start_kernel+0xe4/0xeb
      <0>[ 7290.415243] Code: 00 41 39 ce 0f 8d e8 01 00 00 48 8b 47 40 48 63 d2 48 69 d2 98 00 00 00 4c 8b 04 02 48 c7 c2 20 cf dd a0 49 8d 78 38 49 8d 40 4f <c6> 47 09 00 c6 47 0c 00 c6 47 0f 00 c6 47 12 00 c6 47 15 00 49
      <1>[ 7290.415382] RIP  [<ffffffffa0dd53a1>] iwl3945_rx_reply_tx+0xc1/0x450 [iwl3945]
      <4>[ 7290.415410]  RSP <ffff880002203d60>
      <0>[ 7290.415421] CR2: 0000000000000041
      <4>[ 7290.415436] ---[ end trace ec46807277caa515 ]---
      <0>[ 7290.415450] Kernel panic - not syncing: Fatal exception in interrupt
      <4>[ 7290.415468] Pid: 0, comm: swapper Tainted: P      D    2.6.32-rc8-wl #213
      <4>[ 7290.415486] Call Trace:
      <4>[ 7290.415495]  <IRQ>  [<ffffffff8138c040>] panic+0x7d/0x13a
      <4>[ 7290.415519]  [<ffffffff8101071a>] oops_end+0xda/0xe0
      <4>[ 7290.415538]  [<ffffffff8102e1ea>] no_context+0xea/0x250
      <4>[ 7290.415557]  [<ffffffff81038991>] ? select_task_rq_fair+0x511/0x780
      <4>[ 7290.415578]  [<ffffffff8102e475>] __bad_area_nosemaphore+0x125/0x1e0
      <4>[ 7290.415597]  [<ffffffff81038d0c>] ? __enqueue_entity+0x7c/0x80
      <4>[ 7290.415616]  [<ffffffff81039201>] ? enqueue_task_fair+0x111/0x150
      <4>[ 7290.415636]  [<ffffffff8102e53e>] bad_area_nosemaphore+0xe/0x10
      <4>[ 7290.415656]  [<ffffffff8102e8fa>] do_page_fault+0x26a/0x320
      <4>[ 7290.415674]  [<ffffffff813905df>] page_fault+0x1f/0x30
      <4>[ 7290.415697]  [<ffffffffa0dd53a1>] ? iwl3945_rx_reply_tx+0xc1/0x450 [iwl3945]
      <4>[ 7290.415723]  [<ffffffffa0dc8c47>] iwl3945_irq_tasklet+0x657/0x1740 [iwl3945]
      <4>[ 7290.415746]  [<ffffffff8138fc60>] ? _spin_unlock+0x30/0x60
      <4>[ 7290.415764]  [<ffffffff81049a21>] tasklet_action+0x101/0x110
      <4>[ 7290.415783]  [<ffffffff8104a3d0>] __do_softirq+0xc0/0x160
      <4>[ 7290.415801]  [<ffffffff8100d01c>] call_softirq+0x1c/0x30
      <4>[ 7290.415818]  [<ffffffff8100eff5>] do_softirq+0x75/0xb0
      <4>[ 7290.415835]  [<ffffffff81049ee5>] irq_exit+0x95/0xa0
      <4>[ 7290.415852]  [<ffffffff8100e547>] do_IRQ+0x77/0xf0
      <4>[ 7290.415869]  [<ffffffff8100c7d3>] ret_from_intr+0x0/0xf
      <4>[ 7290.415883]  <EOI>  [<ffffffff81234efa>] ? acpi_idle_enter_bm+0x270/0x2a5
      <4>[ 7290.415911]  [<ffffffff81234f04>] ? acpi_idle_enter_bm+0x27a/0x2a5
      <4>[ 7290.415931]  [<ffffffff81234efa>] ? acpi_idle_enter_bm+0x270/0x2a5
      <4>[ 7290.415952]  [<ffffffff812c11f3>] ? cpuidle_idle_call+0x93/0xf0
      <4>[ 7290.415971]  [<ffffffff8100b0d7>] ? cpu_idle+0xa7/0x110
      <4>[ 7290.415989]  [<ffffffff8137b3d5>] ? rest_init+0x75/0x80
      <4>[ 7290.416007]  [<ffffffff8158cd0a>] ? start_kernel+0x3a7/0x3b3
      <4>[ 7290.416026]  [<ffffffff8158c315>] ? x86_64_start_reservations+0x125/0x129
      <4>[ 7290.416047]  [<ffffffff8158c3fd>] ? x86_64_start_kernel+0xe4/0xeb
      Reported-by: NMaxim Levitsky <maximlevitsky@gmail.com>
      Tested-by: NMaxim Levitsky <maximlevitsky@gmail.com>
      Signed-off-by: NZhu Yi <yi.zhu@intel.com>
      Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
      CC: stable@kernel.org
      Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      c8106d76
  8. 06 1月, 2010 3 次提交
  9. 05 1月, 2010 6 次提交
  10. 30 12月, 2009 1 次提交
  11. 29 12月, 2009 14 次提交
  12. 22 12月, 2009 4 次提交