Граф коммитов

20434 Коммитов

Автор SHA1 Сообщение Дата
Linus Torvalds a376bca610 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  s2io: fixing DBG_PRINT() macro
  ath9k: fix dma direction for map/unmap in ath_rx_tasklet
  net: dev_forward_skb should call nf_reset
  net sched: fix race in mirred device removal
  tun: avoid BUG, dump packet on GSO errors
  bonding: set device in RLB ARP packet handler
  wimax/i2400m: Add PID & VID for Intel WiMAX 6250
  ipv6: Don't add routes to ipv6 disabled interfaces.
  net: Fix skb_copy_expand() handling of ->csum_start
  net: Fix corruption of skb csum field in pskb_expand_head() of net/core/skbuff.c
  macvtap: Limit packet queue length
  ixgbe/igb: catch invalid VF settings
  bnx2x: Advance a module version
  bnx2x: Protect statistics ramrod and sequence number
  bnx2x: Protect a SM state change
  wireless: use netif_rx_ni in ieee80211_send_layer2_update
2010-07-27 09:21:00 -07:00
Breno Leitao 5447080cfa s2io: fixing DBG_PRINT() macro
Patch 9e39f7c5b3 changed the
DBG_PRINT() macro and the if clause was wrongly changed. It means
that currently all the DBG_PRINT are being printed, flooding the
kernel log buffer with things like:

s2io: eth6: Next block at: c0000000b9c90000
s2io: eth6: In Neterion Tx routine

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Acked-by: Sreenivasa Honnur <Sreenivasa.Honnur@neterion.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-26 15:37:30 -07:00
David S. Miller a9ad99a612 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-07-26 13:26:09 -07:00
Ming Lei f792af250d ath9k: fix dma direction for map/unmap in ath_rx_tasklet
For edma, we should use DMA_BIDIRECTIONAL, or else use
DMA_FROM_DEVICE.

This is found to address "BUG at arch/x86/mm/physaddr.c:5"
as described here:

http://lkml.org/lkml/2010/7/14/21

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-26 14:41:04 -04:00
Ralf Baechle 3852cc3343 NET: declance: Fix section mismatches
WARNING: drivers/net/built-in.o(.data+0x24): Section mismatch in reference from
the variable dec_lance_tc_driver to the function .init.text:dec_lance_tc_probe()
The variable dec_lance_tc_driver references
the function __init dec_lance_tc_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,

Fixing this one results in a new mismatch:

WARNING: drivers/net/built-in.o(.devinit.text+0x14): Section mismatch in reference from the function dec_lance_tc_probe() to the function .init.text:dec_lance_probe()
The function __devinit dec_lance_tc_probe() references
a function __init dec_lance_probe().
If dec_lance_probe is only used by dec_lance_tc_probe then
annotate dec_lance_probe with a matching annotation.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-26 19:08:14 +01:00
David S. Miller 76ac21f5ef Merge branch 'wimax-2.6.35.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky/wimax 2010-07-24 20:51:45 -07:00
Michael S. Tsirkin ef3db4a595 tun: avoid BUG, dump packet on GSO errors
There are still some LRO cards that cause GSO errors in tun,
and BUG on this is an unfriendly way to tell the admin
to disable LRO.

Further, experience shows we might have more GSO bugs lurking.
See https://bugzilla.kernel.org/show_bug.cgi?id=16413
as a recent example.
dumping a packet will make it easier to figure it out.

Replace BUG with warning+dump+drop the packet to make
GSO errors in tun less critical and easier to debug.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Alex Unigovsky <unik@compot.ru>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-24 20:47:20 -07:00
Greg Edwards d8190dff01 bonding: set device in RLB ARP packet handler
After:

commit 6146b1a4da
Author: Jay Vosburgh <fubar@us.ibm.com>
Date:   Tue Nov 4 17:51:15 2008 -0800

    bonding: Fix ALB mode to balance traffic on VLANs

the dev field in the RLB ARP packet handler was set to NULL to wildcard
and accommodate balancing VLANs on top of bonds.

This has the side-effect of the packet handler being called against
other, non RLB-enabled bonds, and a kernel oops results when it tries to
dereference rx_hashtbl in rlb_update_entry_from_arp(), which won't be
set for those bonds, e.g. active-backup.

With the __netif_receive_skb() changes from:

commit 1f3c8804ac
Author: Andy Gospodarek <andy@greyhouse.net>
Date:   Mon Dec 14 10:48:58 2009 +0000

    bonding: allow arp_ip_targets on separate vlans to use arp validation

frames received on VLANs correctly make their way to the bond's handler,
so we no longer need to wildcard the device.

The oops can be reproduced by:

modprobe bonding

echo active-backup > /sys/class/net/bond0/bonding/mode
echo 100 > /sys/class/net/bond0/bonding/miimon
ifconfig bond0 xxx.xxx.xxx.xxx netmask xxx.xxx.xxx.xxx
echo +eth0 > /sys/class/net/bond0/bonding/slaves
echo +eth1 > /sys/class/net/bond0/bonding/slaves

echo +bond1 > /sys/class/net/bonding_masters
echo balance-alb > /sys/class/net/bond1/bonding/mode
echo 100 > /sys/class/net/bond1/bonding/miimon
ifconfig bond1 xxx.xxx.xxx.xxx netmask xxx.xxx.xxx.xxx
echo +eth2 > /sys/class/net/bond1/bonding/slaves
echo +eth3 > /sys/class/net/bond1/bonding/slaves

Pass some traffic on bond0.  Boom.

[ Tested, behaves as advertised.  I do not believe a test of the bonding
mode is necessary, as there is no race between the packet handler and
the bonding mode changing (the mode can only change when the device is
closed).  Also updated the log message to include the reproduction and
full commit ids.  -J ]

Signed-off-by: Greg Edwards <greg.edwards@hp.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Acked-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-24 20:37:48 -07:00
Alexey Shvetsov 41a8730c23 wimax/i2400m: Add PID & VID for Intel WiMAX 6250
This version of intel wimax device was found in my IBM ThinkPad x201

Signed-off-by: Alexey Shvetsov <alexxy@gentoo.org>
2010-07-22 14:50:34 -07:00
Herbert Xu 8a35747a5d macvtap: Limit packet queue length
Mark Wagner reported OOM symptoms when sending UDP traffic over
a macvtap link to a kvm receiver.

This appears to be caused by the fact that macvtap packet queues
are unlimited in length.  This means that if the receiver can't
keep up with the rate of flow, then we will hit OOM. Of course
it gets worse if the OOM killer then decides to kill the receiver.

This patch imposes a cap on the packet queue length, in the same
way as the tuntap driver, using the device TX queue length.

Please note that macvtap currently has no way of giving congestion
notification, that means the software device TX queue cannot be
used and packets will always be dropped once the macvtap driver
queue fills up.

This shouldn't be a great problem for the scenario where macvtap
is used to feed a kvm receiver, as the traffic is most likely
external in origin so congestion notification can't be applied
anyway.

Of course, if anybody decides to complain about guest-to-guest
UDP packet loss down the track, then we may have to revisit this.

Incidentally, this patch also fixes a real memory leak when
macvtap_get_queue fails.

Chris Wright noticed that for this patch to work, we need a
non-zero TX queue length.  This patch includes his work to change
the default macvtap TX queue length to 500.

Reported-by: Mark Wagner <mwagner@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-22 13:08:56 -07:00
Andy Gospodarek bded64a7ff ixgbe/igb: catch invalid VF settings
Some ixgbe cards put an invalid VF device ID in the PCIe SR-IOV
capability.  The ixgbe driver is only valid for PFs or non SR-IOV
hardware.  It seems that the same problem could occur on igb hardware as
well, so if we discover we are trying to initialize a VF in ixbge_probe
or igb_probe, print an error and exit.

Based on a patch for ixgbe from Chris Wright <chrisw@sous-sol.org>.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Cc: Chris Wright <chrisw@sous-sol.org>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 13:48:55 -07:00
Vladislav Zolotarov 0577589cc1 bnx2x: Advance a module version
Advance a module version to 1.52.53-2.

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 11:11:56 -07:00
Vladislav Zolotarov d0996faeec bnx2x: Protect statistics ramrod and sequence number
Bug fix: Protect statistics ramrod sending code and a statistics counter update
with a spinlock. Otherwise there was a race condition that would allow sending
a statistics ramrods with the same sequence number or with sequence numbers not
in a natural order, which would cause a FW assert.

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 11:11:55 -07:00
Vladislav Zolotarov a13773a53f bnx2x: Protect a SM state change
Bug fix: Protect the statistics state machine state update with a
spinlock.  Otherwise there was a race condition that would cause the
statistics to stay enabled despite the fact that they were disabled in
the LINK_DOWN event handler.

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 11:11:54 -07:00
Linus Torvalds 516bd66415 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits)
  bridge: Partially disable netpoll support
  tcp: fix crash in tcp_xmit_retransmit_queue
  IPv6: fix CoA check in RH2 input handler (mip6_rthdr_input())
  ibmveth: lost IRQ while closing/opening device leads to service loss
  rt2x00: Fix lockdep warning in rt2x00lib_probe_dev()
  vhost: avoid pr_err on condition guest can trigger
  ipmr: Don't leak memory if fib lookup fails.
  vhost-net: avoid flush under lock
  net: fix problem in reading sock TX queue
  net/core: neighbour update Oops
  net: skb_tx_hash() fix relative to skb_orphan_try()
  rfs: call sock_rps_record_flow() in tcp_splice_read()
  xfrm: do not assume that template resolving always returns xfrms
  hostap_pci: set dev->base_addr during probe
  axnet_cs: use spin_lock_irqsave in ax_interrupt
  dsa: Fix Kconfig dependencies.
  act_nat: not all of the ICMP packets need an IP header payload
  r8169: incorrect identifier for a 8168dp
  Phonet: fix skb leak in pipe endpoint accept()
  Bluetooth: Update sec_level/auth_type for already existing connections
  ...
2010-07-20 16:26:42 -07:00
David S. Miller b508998f66 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-07-19 12:38:51 -07:00
Robert Jennings ee2e6114de ibmveth: lost IRQ while closing/opening device leads to service loss
The order of freeing the IRQ and freeing the device in firmware
in ibmveth_close can cause the adapter to become unusable after a
subsequent ibmveth_open.  Only a reboot of the OS will make the
network device usable again. This is seen when cycling the adapter
up and down while there is network activity.

There is a window where an IRQ will be left unserviced (H_EOI will not
be called).  The solution is to make a VIO_IRQ_DISABLE h_call, free the
device with firmware, and then call free_irq.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-16 13:03:23 -07:00
Stephen Boyd 9acd56d3f2 rt2x00: Fix lockdep warning in rt2x00lib_probe_dev()
The rt2x00dev->intf_work workqueue is never initialized when a driver is
probed for a non-existent device (in this case rt2500usb). On such a
path we call rt2x00lib_remove_dev() to free any resources initialized
during the probe before we use INIT_WORK to initialize the workqueue.
This causes lockdep to get confused since the lock used in the workqueue
hasn't been initialized yet but is now being acquired during
cancel_work_sync() called by rt2x00lib_remove_dev().

Fix this by initializing the workqueue first before we attempt to probe
the device. This should make lockdep happy and avoid breaking any
assumptions about how the library cleans up after a probe fails.

phy0 -> rt2x00lib_probe_dev: Error - Failed to allocate device.
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Pid: 2027, comm: modprobe Not tainted 2.6.35-rc5+ #60
Call Trace:
 [<ffffffff8105fe59>] register_lock_class+0x152/0x31f
 [<ffffffff81344a00>] ? usb_control_msg+0xd5/0x111
 [<ffffffff81061bde>] __lock_acquire+0xce/0xcf4
 [<ffffffff8105f6fd>] ? trace_hardirqs_off+0xd/0xf
 [<ffffffff81492aef>] ?  _raw_spin_unlock_irqrestore+0x33/0x41
 [<ffffffff810628d5>] lock_acquire+0xd1/0xf7
 [<ffffffff8104f037>] ? __cancel_work_timer+0x99/0x17e
 [<ffffffff8104f06e>] __cancel_work_timer+0xd0/0x17e
 [<ffffffff8104f037>] ? __cancel_work_timer+0x99/0x17e
 [<ffffffff8104f136>] cancel_work_sync+0xb/0xd
 [<ffffffffa0096675>] rt2x00lib_remove_dev+0x25/0xb0 [rt2x00lib]
 [<ffffffffa0096bf7>] rt2x00lib_probe_dev+0x380/0x3ed [rt2x00lib]
 [<ffffffff811d78a7>] ? __raw_spin_lock_init+0x31/0x52
 [<ffffffffa00bbd2c>] ? T.676+0xe/0x10 [rt2x00usb]
 [<ffffffffa00bbe4f>] rt2x00usb_probe+0x121/0x15e [rt2x00usb]
 [<ffffffff813468bd>] usb_probe_interface+0x151/0x19e
 [<ffffffff812ea08e>] driver_probe_device+0xa7/0x136
 [<ffffffff812ea167>] __driver_attach+0x4a/0x66
 [<ffffffff812ea11d>] ? __driver_attach+0x0/0x66
 [<ffffffff812e96ca>] bus_for_each_dev+0x54/0x89
 [<ffffffff812e9efd>] driver_attach+0x19/0x1b
 [<ffffffff812e9b64>] bus_add_driver+0xb4/0x204
 [<ffffffff812ea41b>] driver_register+0x98/0x109
 [<ffffffff813465dd>] usb_register_driver+0xb2/0x173
 [<ffffffffa00ca000>] ? rt2500usb_init+0x0/0x20 [rt2500usb]
 [<ffffffffa00ca01e>] rt2500usb_init+0x1e/0x20 [rt2500usb]
 [<ffffffff81000203>] do_one_initcall+0x6d/0x17a
 [<ffffffff8106cae8>] sys_init_module+0x9c/0x1e0
 [<ffffffff8100296b>] system_call_fastpath+0x16/0x1b

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-16 13:57:59 -04:00
John W. Linville 0f4da2d77e hostap_pci: set dev->base_addr during probe
"hostap: Protect against initialization interrupt" (which reinstated
"wireless: hostap, fix oops due to early probing interrupt")
reintroduced Bug 16111.  This is because hostap_pci wasn't setting
dev->base_addr, which is now checked in prism2_interrupt.  As a result,
initialization was failing for PCI-based hostap devices.  This corrects
that oversight.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-14 13:49:46 -04:00
Ken Kawasaki ab83a38958 axnet_cs: use spin_lock_irqsave in ax_interrupt
Use spin_lock_irqsave instead of spin_lock in ax_interrupt because
the interrupt handler can also be invoked from ei_watchdog.

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-12 20:13:02 -07:00
David S. Miller c4363d6acd Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-07-12 15:17:29 -07:00
Francois Romieu 17c9929721 r8169: incorrect identifier for a 8168dp
Merge error.

See CFG_METHOD_8 (0x3c800000 + 0x00300000) since version 8.002.00
of Realtek's driver.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-11 17:10:09 -07:00
Linus Torvalds 2aa72f6121 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (35 commits)
  NET: SB1250: Initialize .owner
  vxge: show startup message with KERN_INFO
  ll_temac: Fix missing iounmaps
  bridge: Clear IPCB before possible entry into IP stack
  bridge br_multicast: BUG: unable to handle kernel NULL pointer dereference
  net: Fix definition of netif_vdbg() when VERBOSE_DEBUG is defined
  net/ne: fix memory leak in ne_drv_probe()
  xfrm: fix xfrm by MARK logic
  virtio_net: fix oom handling on tx
  virtio_net: do not reschedule rx refill forever
  s2io: resolve statistics issues
  linux/net.h: fix kernel-doc warnings
  net: decreasing real_num_tx_queues needs to flush qdisc
  sched: qdisc_reset_all_tx is calling qdisc_reset without qdisc_lock
  qlge: fix a eeh handler to not add a pending timer
  qlge: Replacing add_timer() to mod_timer()
  usbnet: Set parent device early for netdev_printk()
  net: Revert "rndis_host: Poll status channel before control channel"
  netfilter: ip6t_REJECT: fix a dst leak in ipv6 REJECT
  drivers: bluetooth: bluecard_cs.c: Fixed include error, changed to linux/io.h
  ...
2010-07-07 19:56:00 -07:00
Ralf Baechle 33b665eeeb NET: SB1250: Initialize .owner
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 drivers/net/sb1250-mac.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-07 15:00:49 -07:00
Wu Fengguang 7074b16cc6 vxge: show startup message with KERN_INFO
The original KERN_CRIT will mess up terminals.

CC: Sreenivasa Honnur <Sreenivasa.Honnur@neterion.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-07 14:52:24 -07:00
Denis Kirjanov dfe1e8eddc ll_temac: Fix missing iounmaps
Fix missing iounmaps.

Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-07 14:48:00 -07:00
Rajkumar Manoharan f8036965cc ath9k_htc: fix memory leak in ath9k_hif_usb_alloc_urbs
Failure cases within ath9k_hif_usb_alloc_urbs are failed
to release allocated memory.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-07 15:39:07 -04:00
Kulikov Vasiliy 3390712a47 net/ne: fix memory leak in ne_drv_probe()
net_device allocated with alloc_eip_netdev() must be freed.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-05 20:08:05 -07:00
Rusty Russell 58eba97d07 virtio_net: fix oom handling on tx
virtio net will never try to overflow the TX ring, so the only reason
add_buf may fail is out of memory. Thus, we can not stop the
device until some request completes - there's no guarantee anything
at all is outstanding.

Make the error message clearer as well: error here does not
indicate queue full.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (...and avoid TX_BUSY)
Cc: stable@kernel.org  # .34.x (s/virtqueue_/vi->svq->vq_ops->/)
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 22:27:26 -07:00
Michael S. Tsirkin 1788f49548 virtio_net: do not reschedule rx refill forever
We currently fill all of RX ring, then add_buf
returns ENOSPC, which gets mis-detected as an out of
memory condition and causes us to reschedule the work,
and so on forever. Fix this by oom = err == -ENOMEM;

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org # .34.x
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 22:27:25 -07:00
Jon Mason 4a49043223 s2io: resolve statistics issues
This patch resolves a number of issues in the statistics gathering of
the s2io driver.

On Xframe adapters, the received multicast statistics counter includes
pause frames which are not indicated to the driver.  This can cause
issues where the multicast packet count is higher than what has actually
been received, possibly higher than the number of packets received.

The driver software counters are replaced with the adapter hardware
statistics for rx_packets, rx_bytes, and tx_bytes.  It also uses the
overflow registers to determine if the statistics wrapped the 32bit
register (removing the window of having a statistic value less than the
previous call).  rx_length_errors statistic now includes undersized
packets in addition to oversized packets in its counting.  Finally,
rx_crc_errors are now being counted.

Signed-off-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 22:27:25 -07:00
John Fastabend f0796d5c73 net: decreasing real_num_tx_queues needs to flush qdisc
Reducing real_num_queues needs to flush the qdisc otherwise
skbs with queue_mappings greater then real_num_tx_queues can
be sent to the underlying driver.

The flow for this is,

dev_queue_xmit()
	dev_pick_tx()
		skb_tx_hash()  => hash using real_num_tx_queues
		skb_set_queue_mapping()
	...
	qdisc_enqueue_root() => enqueue skb on txq from hash
...
dev->real_num_tx_queues -= n
...
sch_direct_xmit()
	dev_hard_start_xmit()
		ndo_start_xmit(skb,dev) => skb queue set with old hash

skbs are enqueued on the qdisc with skb->queue_mapping set
0 < queue_mappings < real_num_tx_queues.  When the driver
decreases real_num_tx_queues skb's may be dequeued from the
qdisc with a queue_mapping greater then real_num_tx_queues.

This fixes a case in ixgbe where this was occurring with DCB
and FCoE. Because the driver is using queue_mapping to map
skbs to tx descriptor rings we can potentially map skbs to
rings that no longer exist.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 21:59:07 -07:00
Breno Leitao 7ae80abdba qlge: fix a eeh handler to not add a pending timer
On some ocasions the function qlge_io_resume() tries to add a
pending timer, which causes the system to hit the BUG() on
add_timer() function.

This patch removes the timer during the EEH recovery.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 21:59:06 -07:00
Breno Leitao 72046d84f0 qlge: Replacing add_timer() to mod_timer()
Currently qlge driver calls add_timer() instead of mod_timer().
This patch changes add_timer() to mod_timer(), which seems a better
solution.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 21:59:05 -07:00
Ben Hutchings 0dacca73a3 usbnet: Set parent device early for netdev_printk()
netdev_printk() follows the net_device's parent device pointer, so
we must set that earlier than we previously did.

Reported-by: Luís Picciochi Oliveira <pitxyoki@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 21:49:02 -07:00
Ben Hutchings 7b00ac51ff net: Revert "rndis_host: Poll status channel before control channel"
This reverts commit c17b274dc2.

That change was reported to break rndis_wlan support for the WUSB54GS.

Reported-by: Luís Picciochi Oliveira <pitxyoki@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-02 21:47:54 -07:00
Reinette Chatre e4c064728c iwlwifi: remove key information during device restart
When there is a firmware error or the firmware is reloaded for some other
reason we currently clear all station information, including keys
associated with them. A problem is that we do not clear some other
information regarding keys that are not stored in the station structs.

The consequence of this is that when the device is reconfigured after the
firmware reload we can, among other things, run out of key indices.

This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16232
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2221

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
2010-07-02 10:44:19 -07:00
Flavio Leitner 42d782ac1b bonding: check if clients MAC addr has changed
When two systems using bonding devices in adaptive load
balancing (ALB) communicates with each other, an endless
ping-pong of ARP replies starts between these two systems.

What happens? In the ALB mode, bonding driver keeps track
of each client connected in a hash table, so it can do the
receive load balancing (RLB). This hash table is updated
when an ARP reply is received, then it scans for the client
entry, updates its MAC address and flag it to be announced
later. Therefore, two seconds later, the alb monitor runs
and send for each updated client entry two ARP replies
updating this specific client. The same process happens on
the receiving system, causing the endless ping-pong of arp
replies.

See more information including the relevant functions below:

   System 1                          System 2
    bond0                             bond0

   ping <system2>
    ARP request  --------->
                           <--------- ARP reply

+->rlb_arp_recv  <---------------------+   <--- loop begins
|  rlb_update_entry_from_arp           |
|  client_info->ntt = 1;               |
|  bond_info->rx_ntt = 1;              |
|                                      |
|         <communication succeed>      |
|                                      |
|  bond_alb_monitor                    |
|  rlb_update_rx_clients               |
|  rlb_update_client                   |
|  arp_create(ARPOP_REPLY)             |
|   send ARP reply -------------->     V
|   send ARP reply -------------->
|                               rlb_arp_recv
|                               rlb_update_entry_from_arp
|                               client_info->ntt = 1;
|                               bond_info->rx_ntt = 1;
|                           < snipped, same as in system 1>
+-------           <-------------- send ARP reply
                   <-------------- send ARP reply

Besides the unneeded networking traffic, this loop breaks
a cluster because a backup system can't take over the IP
address. There is always one system sending an ARP reply
poisoning the network.

This patch fixes the problem adding a check for the MAC
address before updating it. Thus, if the MAC address didn't
change, there is no need to update neither to announce it later.

Signed-off-by: Flavio Leitner <fleitner@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-30 13:51:11 -07:00
Saeed Bishara 9b2c2ff7a1 mv643xx_eth: use sw csum for big packets
Some controllers (KW, Dove) limits the TX IP/layer4 checksum offloading to a max size.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-30 13:01:11 -07:00
David S. Miller 08e554b17b Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-06-30 12:04:58 -07:00
Guillaume Gaudonville d3ead2413c ixgbe: skip non IPv4 packets in ATR filter
In driver ixgbe, ixgbe_atr may cause crashes for non-ipv4 packets. Just
add a test to check skb->protocol.  It may crash on short packets due
to ip_hdr() access.

Signed-off-by: Guillaume Gaudonville <guillaume.gaudonville@6wind.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-29 23:12:41 -07:00
John Fastabend 9f756f018a ixgbe: disable tx engine before disabling tx laser
Disabling the tx laser while receiving DMA requests
can hang the device.  After this occurs the device
is in a bad state. The GPIO bit never clears when
PCI master access is disabled and a reboot is required
to get the device in a good state again.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-29 23:12:40 -07:00
Andy Gospodarek fa37813401 ixgbe: fix panic when shutting down system with WoL enabled
This patch added to 2.6.34:

	commit 5f6c018199
	Author: Jesse Brandeburg <jesse.brandeburg@intel.com>
	Date:   Wed Apr 14 16:04:23 2010 -0700

	    ixgbe: fix bug with vlan strip in promsic mode

among other things added a function called ixgbe_vlan_filter_enable.
This new function wants to access and set some rx_ring parameters, but
adapter->rx_ring has already been freed.  This simply moves the free
until after the access and makes __ixgbe_shutdown look more like
ixgbe_remove.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-29 23:12:39 -07:00
Andy Gospodarek c22d7ac844 bonding: prevent netpoll over bonded interfaces
Support for netpoll over bonded interfaces was added here:

	commit f6dc31a85c
	Author: WANG Cong <amwang@redhat.com>
	Date:   Thu May 6 00:48:51 2010 -0700

	    bonding: make bonding support netpoll

but it is bad enough that we should probably just disable netpoll over
bonding until some of the locking logic in the bonding driver is changed
or converted completely to RCU.  Simple actions like changing the active
slave in active-backup mode will hang the box if a high enough printk
debugging level is enabled.

Keeping the old code around will be good for anyone that wants to work
on it (and for after the RCU conversion), so I propose this small patch
rather than ripping it all out.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-28 23:54:10 -07:00
Linus Torvalds 31cafd9589 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (52 commits)
  phylib: Add autoload support for the LXT973 phy.
  ISDN: hysdn, fix potential NULL dereference
  vxge: fix memory leak in vxge_alloc_msix() error path
  isdn/gigaset: correct CAPI connection state storage
  isdn/gigaset: encode HLC and BC together
  isdn/gigaset: correct CAPI DATA_B3 Delivery Confirmation
  isdn/gigaset: correct CAPI voice connection encoding
  isdn/gigaset: honor CAPI application's buffer size request
  cpmac: do not leak struct net_device on phy_connect errors
  smc91c92_cs: fix the problem that lan & modem does not work simultaneously
  ipv6: fix NULL reference in proxy neighbor discovery
  Bluetooth: Bring back var 'i' increment
  xfrm: check bundle policy existance before dereferencing it
  sky2: enable rx/tx in sky2_phy_reinit()
  cnic: Disable statistics initialization for eth clients that do not support statistics
  net: add dependency on fw class module to qlcnic and netxen_nic
  snmp: fix SNMP_ADD_STATS()
  hso: remove setting of low_latency flag
  udp: Fix bogus UFO packet generation
  lasi82596: fix netdev_mc_count conversion
  ...
2010-06-27 11:28:02 -07:00
David Woodhouse e2f5b04563 phylib: Add autoload support for the LXT973 phy.
Commit e13647c1 (phylib: Add support for the LXT973 phy.) added a new ID
but neglected to also add it to the MODULE_DEVICE_TABLE.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-26 22:12:03 -07:00
Michal Schmidt cc413d9097 vxge: fix memory leak in vxge_alloc_msix() error path
When pci_enable_msix() returned ret<0, entries and vxge_entries were leaked.
While at it, use the centralized exit idiom in the function.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Ram Vepa <ram.vepa@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-26 22:10:04 -07:00
Florian Fainelli ed770f0136 cpmac: do not leak struct net_device on phy_connect errors
If the call to phy_connect fails, we will return directly instead of freeing
the previously allocated struct net_device.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
CC: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25 21:16:58 -07:00
Ken Kawasaki 9735b7ef00 smc91c92_cs: fix the problem that lan & modem does not work simultaneously
smc91c92_cs:
  Fix the problem that lan & modem does not work simultaneously
  in the Megahertz multi-function card.
  We need to write MEGAHERTZ_ISR to retrigger interrupt.

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25 21:16:58 -07:00
Wey-Yi Guy 062bee448b iwlwifi: set TX_CMD_FLAG_PROT_REQUIRE_MSK in tx_flag
When building tx command, always set TX_CMD_FLAG_PROT_REQUIRE_MSK
for 5000 series and up.

Without setting this bit the firmware will not examine the RTS/CTS setting
and thus not send traffic with the appropriate protection. RTS/CTS is is
required for HT traffic in a noisy environment where, without this setting,
connections will stall on some hardware as documented in the patch that
initially attempted to address this:

    commit 1152dcc28c
    Author: Wey-Yi Guy <wey-yi.w.guy@intel.com>
    Date:   Fri Jan 15 13:42:58 2010 -0800

    iwlwifi: Fix throughput stall issue in HT mode for 5000

    Similar to 6000 and 1000 series, RTS/CTS is the recommended
    protection mechanism for 5000 series in HT mode based on the HW design.
    Using RTS/CTS will better protect the inner exchange from interference,
    especially in highly-congested environment, it also prevent uCode encounter
    TX FIFO underrun and other HT mode related performance issues.

For 3945 and 4965, different flags are used for RTS/CTS or CTS-to-Self
protection.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-06-25 14:34:45 -07:00