Deactivate inbound checksumming on HiperSocket is a valid but
dangerous optimization in case the frame is routed from an OSA
network to an HiperSockets network. To go for sure we change the
default to software checksumming.
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Depending on their definition in z/VM, virtual devices for z/VM
VSWITCH or GuestLAN must be configured either in layer2 or in
layer3 mode. If qeth detects a layer mismatch, device activation
fails. Trying to recover from this error cannot help; thus
scheduling a recovery should be avoided.
In addition, since recovery is forbidden during online setting of
a qeth device, existence of its network device is guaranteed for all
dev_close() calls in qeth. The corresponding checks can be removed.
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If HiperSockets Network Traffic Analyzer is switched off, but trace
disabling fails somehow, the qeth driver does not switch off its
promisc mode status. A following sniffer reactivation fails, since
qeth does not see a need to reenable tracing.
At the same time the code analyzing results of trace commands is
restructured.
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

dhcp frames are valid IPv4 packets so there is no need to send them
in pass thru mode. This allows dhcp packets to pass HiperSockets.
Also the dhcp release frame is send out correctly with this patch.
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

provide qeth kmsg definitions to enable hash string generation for
kernel message created with dev_err().
Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
Signed-off-by: NFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Looks like commit a6e4bc53 didn't include updates to drivers so the
Blackfin CAN driver fails to build now.
Signed-off-by: NBarry Song <barry.song@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Acked-by: NWolfgang Grandegger <wg@grandegger.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Bios sub version from unified fw image is calculated incorrect.
Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Validate all sections of unified fw image, before accessing them,
to avoid seg fault.
Signed-off-by: NSucheta Chakraborty <sucheta@dut6195.unminc.com>
Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For promiscuous mode, driver send request to device for deleting
multicast addresses and again it send request for adding them back
while exiting from this mode, this is bad for performance.
Just setting device in promiscuous mode is enough, no need to del/add
multicast addresses.
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Statistics added for lro/lso bytes, count for tx stop queue and
wake queue and skb alloc failure count.
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Kernel default tx csum function (ethtool_op_get_tx_csum) doesn't show
correct csum status. It takes various FLAGS (NETIF_F_ALL_CSUM) in account
to show tx csum status, which driver doesn't set while disabling tx csum.
Signed-off-by: NSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch cleans up some unused code from be_load_fw().
Signed-off-by: NAjit Khaparde <ajitk@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When PCI functions are virtuialized in applications by assigning PCI
functions to VM (PCI passthrough), the be2net driver in the VM sees a

different function number. So, use of PCI function number in any
calculation will break existing code. This patch takes care of it.
Signed-off-by: NAjit Khaparde <ajitk@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If we were unable to detect a PHY on any of the MDIO bus id we tried instead of
bailing out with -ENODEV, assume the MAC is connected to a switch and use MDIO
bus 0. This unbreaks quite a lot of devices out there whose switch cannot be
detected.
Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Despite what the comment above CPMAC_SKB_SIZE says, the hardware also
needs to account for the FCS length in a received frame. This patch fix
the receiving of 802.1q frames which have 4 more bytes. While at it
unhardcode the definition and use the one from if_vlan.h.
Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This one removes trailing whitespace in pegasus.h and more importantly
adds new Pegasus compatible device.
Signed-off-by: NJulian Brown <julian@codesourcery.com>
Signed-off-by: NPetko Manolov <petkan@nucleusys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If the call to kcalloc() fails then we should return -ENOMEM.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

"skb" is alway non-null here, but even if it were null the check isn't
needed because dev_kfree_skb() can handle it.

This eliminates a smatch warning about dereferencing a variable before
checking that it is non-null.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

fix a race at the end of NAPI processing in ks8695_poll() function.
Signed-off-by: NFigo.zhang <figo1802@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently s2io is dumping debug messages using the interface name
before it was allocated, showing a message like the following:

s2io: eth%d: Ring Mem PHY: 0x7ef80000
s2io: s2io_reset: Resetting XFrame card eth%d

This patch just fixes it, printing the pci bus information for
the card instead of the interface name.
Signed-off-by: NBreno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

when receiving a particular type of NFS v2 UDP traffic, the hardware could
DMA some bad data and then hang, possibly corrupting memory.

Disable the NFS parsing in this hardware, verified to fix the bug.

Originally reported and reproduced by RedHat's Neil Horman
CC: nhorman@tuxdriver.com
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: NNeil Horman <nhorman@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The typhoon driver was incorrectly using smp_wmb() to order memory
accesses against IO to the NIC in a few instances. Use wmb() instead,
which is required to actually order between memory types.
Signed-off-by: NDavid Dillow <dave@thedillows.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDavid Brown <davidb@quicinc.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>
Acked-by: NNicolas Pitre <nico@fluxnic.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

My previous patch (655ffee2) added locking in
a bad way. Because rndis_set_oid can sleep, there is need to prepare multicast
addresses into local buffer under netif_addr_lock first, then call
rndis_set_oid outside. This caused reorganizing of the whole function.
Signed-off-by: NJiri Pirko <jpirko@redhat.com>
Reported-by: NJussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

queue restart tasklets need to be stopped after napi handlers are stopped
since the latter can restart them.  So stop them after stopping napi.
Signed-off-by: NDivy Le Ray <divy@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Starting with commit a3bc1f11 ("gianfar: Revive SKB
recycling") gianfar driver sooner or later stops transmitting any
packets on SMP machines.

start_xmit() prepares new skb for transmitting, generally it does
three things:

1. sets up all BDs (marks them ready to send), except the first one.
2. stores skb into tx_queue->tx_skbuff so that clean_tx_ring()
   would cleanup it later.
3. sets up the first BD, i.e. marks it ready.

Here is what clean_tx_ring() does:

1. reads skbs from tx_queue->tx_skbuff
2. checks if the *last* BD is ready. If it's still ready [to send]
   then it it isn't transmitted, so clean_tx_ring() returns.
   Otherwise it actually cleanups BDs. All is OK.

Now, if there is just one BD, code flow:

- start_xmit(): stores skb into tx_skbuff. Note that the first BD
  (which is also the last one) isn't marked as ready, yet.
- clean_tx_ring(): sees that skb is not null, *and* its lstatus
  says that it is NOT ready (like if BD was sent), so it cleans
  it up (bad!)
- start_xmit(): marks BD as ready [to send], but it's too late.

We can fix this simply by reordering lstatus/tx_skbuff writes.
Reported-by: NMartyn Welch <martyn.welch@ge.com>
Bisected-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com>
Tested-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Tested-by: NMartyn Welch <martyn.welch@ge.com>
Cc: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Cc: Stable <stable@vger.kernel.org> [2.6.33]
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

r8169 needs certain writes to be visible to other CPUs or the NIC before
touching the hardware, but was using smp_wmb() which is only required to
order cacheable memory access. Switch to wmb() which is required to
order both cacheable and non-cacheable memory.

Noticed by Catalin Marinas and Paul Mackerras.
Signed-off-by: NDavid Dillow <dave@thedillows.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Export rt2x00soc_probe from rt2x00soc as it is used in rt2800pci.

Otherwise loading rt2800pci gives "rt2800pci: Unknown symbol
rt2x00soc_probe".
Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com>
Acked-by: NGertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Handling HT configuration changes involved setting the channel
with the new HT parameters and then issuing a rate_update()
notification to the driver.

This behavior changed after the off-channel changes. Now, the channel
is not updated with the new HT params in enable_ht() - instead, it
is now done when the scan work terminates. This results in the driver
depending on stale information, defaulting to non-HT mode always.

Fix this by passing the new channel type to the driver.

Cc: stable@kernel.org
Signed-off-by: NSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This off by one error was found by smatch.

drivers/net/davinci_emac.c +2390 emac_dev_open(13) error: buffer overflow 'priv->mac_addr' 6 <= 6
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There are only 6 link_modes.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Adding code to update NCSI section while updating firmware on the controller.
Signed-off-by: NSarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The original code dereferenced "cpmac_mii" after calling
"mdiobus_free(cpmac_mii);"
Signed-off-by: NDan Carpenter <error27@gmail.com>
Reviewed-by: NJiri Pirko <jpirko@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

At the wireless summit in Portland we discussed a way of
loading firmware asynchronously from ->probe() before
registration to mac80211, in order to register with the
wireless subsystems with complete information in cases
where firmware is required to know parameters.

This is not yet the case in iwlwifi, but for some new
features we're working on it will be the case since
those will only be supported by new firmware images.

Hence, to start with, convert iwlwifi to load firmware
asynchronously from probe, unbinding the device when
firmware loading fails, and only registering with the
wireless subsystems after firmware has been loaded
successfully.

Future patches will hook into this to register the
new firmware capabilities, depending on the firmware
API version.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This converts ar9170 to load firmware asynchronously
out of ->probe() and only register with mac80211 when
all firmware has been loaded successfully. If, on the
other hand, any firmware fails to load, it will now
unbind from the device.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Compiling rt2800pci with CONFIG_RT2800PCI_SOC fails with "... rt2880pci.c:
error: incompatible type for argument 2 of 'rt2x00soc_probe'".

Fix this by using &rt2800pci_ops instead of rt2800pci_ops.
Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This adds support for CEIVA USB wireless adapters to the rt73usb driver.
Signed-off-by: NBryan Polk <sainth@eidolons.org>
Acked-by: NIvo van Doorn <IvDoorn@gmail.com>
Acked-by: NGertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Since txq->axq_lock may be hold in softirq context, it must be
acquired with spin_lock_bh() instead of spin_lock() if softieq is
enabled.

The patch fixes the lockdep warning below when unloading ath9k modules.

=================================
[ INFO: inconsistent lock state ]
2.6.33-wl #12
---------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
rmmod/3642 [HC0[0]:SC0[0]:HE1:SE1] takes:
 (&(&txq->axq_lock)->rlock){+.?...}, at: [<ffffffffa03568c3>] ath_tx_node_cleanup+0x62/0x180 [ath9k]
{IN-SOFTIRQ-W} state was registered at:
  [<ffffffff8107577d>] __lock_acquire+0x2f6/0xd35
  [<ffffffff81076289>] lock_acquire+0xcd/0xf1
  [<ffffffff813a7486>] _raw_spin_lock_bh+0x3b/0x6e
  [<ffffffffa0356b49>] spin_lock_bh+0xe/0x10 [ath9k]
  [<ffffffffa0358ec7>] ath_tx_tasklet+0xcd/0x391 [ath9k]
  [<ffffffffa0354f5f>] ath9k_tasklet+0x70/0xc8 [ath9k]
  [<ffffffff8104e601>] tasklet_action+0x8c/0xf4
  [<ffffffff8104f459>] __do_softirq+0xf8/0x1cd
  [<ffffffff8100ab1c>] call_softirq+0x1c/0x30
  [<ffffffff8100c2cf>] do_softirq+0x4b/0xa3
  [<ffffffff8104f045>] irq_exit+0x4a/0x8c
  [<ffffffff813acccc>] do_IRQ+0xac/0xc3
  [<ffffffff813a7d53>] ret_from_intr+0x0/0x16
  [<ffffffff81302d52>] cpuidle_idle_call+0x9e/0xf8
  [<ffffffff81008be7>] cpu_idle+0x62/0x9d
  [<ffffffff81391c1a>] rest_init+0x7e/0x80
  [<ffffffff818bbd38>] start_kernel+0x3e8/0x3f3
  [<ffffffff818bb2bc>] x86_64_start_reservations+0xa7/0xab
  [<ffffffff818bb3b8>] x86_64_start_kernel+0xf8/0x107
irq event stamp: 42037
hardirqs last  enabled at (42037): [<ffffffff813a7b21>] _raw_spin_unlock_irqrestore+0x47/0x56
hardirqs last disabled at (42036): [<ffffffff813a72f4>] _raw_spin_lock_irqsave+0x2b/0x88
softirqs last  enabled at (42000): [<ffffffffa0353ea6>] spin_unlock_bh+0xe/0x10 [ath9k]
softirqs last disabled at (41998): [<ffffffff813a7463>] _raw_spin_lock_bh+0x18/0x6e

other info that might help us debug this:
4 locks held by rmmod/3642:
 #0:  (rtnl_mutex){+.+.+.}, at: [<ffffffff8132c10d>] rtnl_lock+0x17/0x19
 #1:  (&wdev->mtx){+.+.+.}, at: [<ffffffffa01e53f2>] cfg80211_netdev_notifier_call+0x28d/0x46d [cfg80211]
 #2:  (&ifmgd->mtx){+.+.+.}, at: [<ffffffffa0260834>] ieee80211_mgd_deauth+0x3f/0x17e [mac80211]
 #3:  (&local->sta_mtx){+.+.+.}, at: [<ffffffffa025a381>] sta_info_destroy_addr+0x2b/0x5e [mac80211]

stack backtrace:
Pid: 3642, comm: rmmod Not tainted 2.6.33-wl #12
Call Trace:
 [<ffffffff81074469>] valid_state+0x178/0x18b
 [<ffffffff81014f94>] ? save_stack_trace+0x2f/0x4c
 [<ffffffff81074e08>] ? check_usage_backwards+0x0/0x88
 [<ffffffff8107458f>] mark_lock+0x113/0x230
 [<ffffffff810757f1>] __lock_acquire+0x36a/0xd35
 [<ffffffff8101018d>] ? native_sched_clock+0x2d/0x5f
 [<ffffffffa03568c3>] ? ath_tx_node_cleanup+0x62/0x180 [ath9k]
 [<ffffffff81076289>] lock_acquire+0xcd/0xf1
 [<ffffffffa03568c3>] ? ath_tx_node_cleanup+0x62/0x180 [ath9k]
 [<ffffffff810732eb>] ? trace_hardirqs_off+0xd/0xf
 [<ffffffff813a7193>] _raw_spin_lock+0x36/0x69
 [<ffffffffa03568c3>] ? ath_tx_node_cleanup+0x62/0x180 [ath9k]
 [<ffffffffa03568c3>] ath_tx_node_cleanup+0x62/0x180 [ath9k]
 [<ffffffff810749ed>] ? trace_hardirqs_on+0xd/0xf
 [<ffffffffa0353950>] ath9k_sta_remove+0x22/0x26 [ath9k]
 [<ffffffffa025a08f>] __sta_info_destroy+0x1ad/0x38c [mac80211]
 [<ffffffffa025a394>] sta_info_destroy_addr+0x3e/0x5e [mac80211]
 [<ffffffffa02605d6>] ieee80211_set_disassoc+0x175/0x180 [mac80211]
 [<ffffffffa026084d>] ieee80211_mgd_deauth+0x58/0x17e [mac80211]
 [<ffffffff813a60c1>] ? __mutex_lock_common+0x37f/0x3a4
 [<ffffffffa01e53f2>] ? cfg80211_netdev_notifier_call+0x28d/0x46d [cfg80211]
 [<ffffffffa026786e>] ieee80211_deauth+0x1e/0x20 [mac80211]
 [<ffffffffa01f47f9>] __cfg80211_mlme_deauth+0x130/0x13f [cfg80211]
 [<ffffffffa01e53f2>] ? cfg80211_netdev_notifier_call+0x28d/0x46d [cfg80211]
 [<ffffffff810732eb>] ? trace_hardirqs_off+0xd/0xf
 [<ffffffffa01f7eee>] __cfg80211_disconnect+0x111/0x189 [cfg80211]
 [<ffffffffa01e5433>] cfg80211_netdev_notifier_call+0x2ce/0x46d [cfg80211]
 [<ffffffff813aa9ea>] notifier_call_chain+0x37/0x63
 [<ffffffff81068c98>] raw_notifier_call_chain+0x14/0x16
 [<ffffffff81322e97>] call_netdevice_notifiers+0x1b/0x1d
 [<ffffffff8132386d>] dev_close+0x6a/0xa6
 [<ffffffff8132395f>] rollback_registered_many+0xb6/0x2f4
 [<ffffffff81323bb8>] unregister_netdevice_many+0x1b/0x66
 [<ffffffffa026494f>] ieee80211_remove_interfaces+0xc5/0xd0 [mac80211]
 [<ffffffffa02580a2>] ieee80211_unregister_hw+0x47/0xe8 [mac80211]
 [<ffffffffa035290e>] ath9k_deinit_device+0x7a/0x9b [ath9k]
 [<ffffffffa035bc26>] ath_pci_remove+0x38/0x76 [ath9k]
 [<ffffffff8120940a>] pci_device_remove+0x2d/0x51
 [<ffffffff8129d797>] __device_release_driver+0x7b/0xd1
 [<ffffffff8129d885>] driver_detach+0x98/0xbe
 [<ffffffff8129ca7a>] bus_remove_driver+0x94/0xb7
 [<ffffffff8129ddd6>] driver_unregister+0x6c/0x74
 [<ffffffff812096d2>] pci_unregister_driver+0x46/0xad
 [<ffffffffa035bae1>] ath_pci_exit+0x15/0x17 [ath9k]
 [<ffffffffa035e1a2>] ath9k_exit+0xe/0x2f [ath9k]
 [<ffffffff8108050a>] sys_delete_module+0x1c7/0x236
 [<ffffffff813a7df5>] ? retint_swapgs+0x13/0x1b
 [<ffffffff810749b5>] ? trace_hardirqs_on_caller+0x119/0x144
 [<ffffffff8109b9f6>] ? audit_syscall_entry+0x11e/0x14a
 [<ffffffff81009bb2>] system_call_fastpath+0x16/0x1b
wlan1: deauthenticating from 00:23:cd:e1:f9:b2 by local choice (reason=3)
PM: Removing info for No Bus:wlan1
cfg80211: Calling CRDA to update world regulatory domain
PM: Removing info for No Bus:rfkill2
PM: Removing info for No Bus:phy1
ath9k 0000:16:00.0: PCI INT A disabled
Signed-off-by: NMing Lei <tom.leiming@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>