Commit Graph

16099 Commits

Author SHA1 Message Date
Linus Torvalds
90d5ffc729 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: (46 commits)
  cnic: Fix NETDEV_UP event processing.
  uvesafb/connector: Disallow unpliviged users to send netlink packets
  pohmelfs/connector: Disallow unpliviged users to configure pohmelfs
  dst/connector: Disallow unpliviged users to configure dst
  dm/connector: Only process connector packages from privileged processes
  connector: Removed the destruct_data callback since it is always kfree_skb()
  connector/dm: Fixed a compilation warning
  connector: Provide the sender's credentials to the callback
  connector: Keep the skb in cn_callback_data
  e1000e/igb/ixgbe: Don't report an error if devices don't support AER
  net: Fix wrong sizeof
  net: splice() from tcp to pipe should take into account O_NONBLOCK
  net: Use sk_mark for routing lookup in more places
  sky2: irqname based on pci address
  skge: use unique IRQ name
  IPv4 TCP fails to send window scale option when window scale is zero
  net/ipv4/tcp.c: fix min() type mismatch warning
  Kconfig: STRIP: Remove stale bits of STRIP help text
  NET: mkiss: Fix typo
  tg3: Remove prev_vlan_tag from struct tx_ring_info
  ...
2009-10-02 13:37:18 -07:00
Michael Chan
6053bbf7bb cnic: Fix NETDEV_UP event processing.
This fixes the problem of not handling the NETDEV_UP event properly
during hot-plug or modprobe of bnx2 after cnic.  The handling was
skipped by mistakenly using "else if" to check for the event.

Also update version to 2.0.1.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-02 11:03:28 -07:00
Frans Pop
19d5afd4f0 e1000e/igb/ixgbe: Don't report an error if devices don't support AER
The only error returned by pci_{en,dis}able_pcie_error_reporting() is
-EIO which simply means that Advanced Error Reporting is not supported.
There is no need to report that, so remove the error check from e1000e,
igb and ixgbe.

Signed-off-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-02 10:04:12 -07:00
Jean Delvare
b607bd9000 net: Fix wrong sizeof
Which is why I have always preferred sizeof(struct foo) over
sizeof(var).

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-02 09:55:19 -07:00
Stephen Hemminger
66466797c7 sky2: irqname based on pci address
This is based on Michal Schmidt fix for skge.

Most network drivers request their IRQ when the interface is activated.
sky2 does it in ->probe() instead, because it can work with two-port
cards where the two net_devices use the same IRQ. This works fine most
of the time, except in some situations when the interface gets renamed.
Consider this example:

1. modprobe sky2
   The card is detected as eth0 and requests IRQ 17. Directory
   /proc/irq/17/eth0 is created.
2. There is an udev rule which says this interface should be called
   eth1, so udev renames eth0 -> eth1.
3. modprobe 8139too
   The Realtek card is detected as eth0. It will be using IRQ 17 too.
4. ip link set eth0 up
   Now 8139too requests IRQ 17.

The result is:
WARNING: at fs/proc/generic.c:590 proc_register ...
proc_dir_entry '17/eth0' already registered

The fix is for sky2 to name the irq based on the pci device, as is done
by some other devices DRM, infiniband, ...  ie. sky2@pci:0000:00:00

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Reviewed-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 15:14:55 -07:00
Michal Schmidt
415e69e657 skge: use unique IRQ name
Most network drivers request their IRQ when the interface is activated.
skge does it in ->probe() instead, because it can work with two-port
cards where the two net_devices use the same IRQ. This works fine most
of the time, except in some situations when the interface gets renamed.
Consider this example:

1. modprobe skge
   The card is detected as eth0 and requests IRQ 17. Directory
   /proc/irq/17/eth0 is created.
2. There is an udev rule which says this interface should be called
   eth1, so udev renames eth0 -> eth1.
3. modprobe 8139too
   The Realtek card is detected as eth0. It will be using IRQ 17 too.
4. ip link set eth0 up
   Now 8139too requests IRQ 17.

The result is:
WARNING: at fs/proc/generic.c:590 proc_register ...
proc_dir_entry '17/eth0' already registered
...
And "ls /proc/irq/17" shows two subdirectories, both called eth0.

Fix it by using a unique name for skge's IRQ, based on the PCI address.
The naming from the example then looks like this:
$ grep skge /proc/interrupts
 17:        169   IO-APIC-fasteoi   skge@pci:0000:00:0a.0, eth0

irqbalance daemon will have to be taught to recognize "skge@" as an
Ethernet interrupt. This will be a one-liner addition in classify.c. I
will send a patch to irqbalance if this change is accepted.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 15:14:54 -07:00
Ralf Baechle
28ad3957b9 Kconfig: STRIP: Remove stale bits of STRIP help text
Remove references to dead web site mosquitonet.Stanford.EDU.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 14:49:14 -07:00
Ralf Baechle
7b1401cf5c NET: mkiss: Fix typo
This typo was introduced by 5793f4be23 on
October 14, 2005 ...

Reported-by: Matti Aarnio <matti.aarnio@zmailer.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 14:48:25 -07:00
Eric Dumazet
bf18a9f8b3 tg3: Remove prev_vlan_tag from struct tx_ring_info
prev_vlan_tag field is not used.

Patch saves 512*8 bytes per tx queue ring on 64bit arches.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Matthew Carlson <mcarlson@broadcom.com>
2009-10-01 14:37:34 -07:00
Uwe Kleine-König
3d1285beff move virtnet_remove to .devexit.text
The function virtnet_remove is used only wrapped by __devexit_p so define
it using __devexit.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Alex Williamson <alex.williamson@hp.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 14:34:44 -07:00
Uwe Kleine-König
fb74c2fcac don't use __devexit_p to wrap sgiseeq_remove
The function sgiseeq_remove is defined using __exit, so don't use
__devexit_p but __exit_p to wrap it.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Wang Chen <wangchen@cn.fujitsu.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 14:34:43 -07:00
Uwe Kleine-König
1ebb5a1aa9 don't use __devexit_p to wrap meth_remove
The function meth_remove is defined using __exit, so don't use __devexit_p
but __exit_p to wrap it.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 14:34:40 -07:00
Jiri Pirko
ce501caf16 bonding: set primary param via sysfs
Primary module parameter passed to bonding is pernament. That means if you
release the primary slave and enslave it again, it becomes the primary slave
again. But if you set primary slave via sysfs, the primary slave is only set
once and it's not remembered in bond->params structure. Therefore the setting is
lost after releasing the primary slave. This simple one-liner fixes this.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-01 14:34:29 -07:00
David S. Miller
a98917acc7 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2009-10-01 12:43:07 -07:00
Jiri Pirko
a00d2102ce ixgbe: correct the parameter description
ccffad25b5 changed parameters for function
ixgbe_update_uc_addr_list_generic but parameter description was not updated.
This patch corrects it.

Signed-off-by: Jiri Pirko <jpirko@redhat.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>
2009-10-01 01:10:31 -07:00
Ajit Khaparde
dcb9b5648a be2net: Workaround to fix a bug in Rx Completion processing.
vtp bit in RX completion descriptor could be wrongly set in
some skews of BladEngine.  Ignore this  bit if vtm is not set.
Resending because the previous patch was against net-next tree.
This patch is against the net-2.6 tree.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 21:58:22 -07:00
Anton Vorontsov
7bfc4ab562 3c59x: Rework suspend and resume
As noticed by Alan Stern, there is still one issue with the driver:
we disable PCI IRQ on suspend, but other devices on the same IRQ
line might still need the IRQ enabled to suspend properly.

Nowadays, PCI core handles all power management work by itself, with
one condition though: if we use dev_pm_ops. So, rework the driver to
only quiesce 3c59x internal logic on suspend, while PCI core will
manage PCI device power state with IRQs disabled.

Suggested-by: Rafael J. Wysocki <rjw@sisk.pl>
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:11:11 -07:00
Choi, David
a55c0a0ed4 drivers/net: ks8851_mll ethernet network driver
This is the first registration of ks8851 network driver with
MLL(address/data multiplexed) interface.

Signed-off-by : David J. Choi <david.choi@micrel.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:03:57 -07:00
Mike McCormack
f1914226e1 skge: Make sure both ports initialize correctly
If allocation of the second ports fails, make sure that hw->ports
 is not 2 otherwise we'll crash trying to access the second port.

This fix is copied from a similar fix in the sky2 driver (ca519274...),
but is untested, as I don't have a skge card.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:03:18 -07:00
roel kluin
ec1652af18 bcm63xx_enet: timeout off by one in do_mdio_op()
`while (limit-- >= 0)' reaches -2 after the loop upon timeout.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:03:15 -07:00
Ron Mercer
ebd6e7744f qlge: Fix error exit for probe call.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:03:14 -07:00
Ron Mercer
f2c0d8df05 qlge: Protect reset recovery with rtnl_lock().
Move the call to rtnl_lock() to before the internal call to
ql_adapter_down()/ql_adapter_up().  This prevents collisions that can
happen when recovering from an asic error.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:03:11 -07:00
Ron Mercer
06a49f7280 qlge: Fix spin_lock warning.
Remove the unnecessary locking around the call to ql_adapter_reset().

Sep 25 08:17:29 localhost kernel:    SOFTIRQ-ON-W at:
Sep 25 08:17:29 localhost kernel:                         [<c0000000000a2964>] .lock_acquire+0x10c/0x158
Sep 25 08:17:29 localhost kernel:                         [<c0000000004542e0>] ._spin_lock+0x34/0x58
Sep 25 08:17:29 localhost kernel:                         [<d000000006723070>] .ql_adapter_down+0x40c/0x4a0 [qlge]
Sep 25 08:17:29 localhost kernel:                         [<d0000000067256d8>] .qlge_close+0x38/0x58 [qlge]
Sep 25 08:17:29 localhost kernel:                         [<c0000000003ada6c>] .dev_close+0xdc/0x118
Sep 25 08:17:29 localhost kernel:                         [<c0000000003adb48>] .rollback_registered+0xa0/0x158
Sep 25 08:17:29 localhost kernel:                         [<c0000000003adc50>] .unregister_netdevice+0x50/0x7c
Sep 25 08:17:29 localhost kernel:                         [<c0000000003adca0>] .unregister_netdev+0x24/0x40
Sep 25 08:17:29 localhost kernel:                         [<d00000000672e0c0>] .qlge_remove+0x28/0x64 [qlge]
Sep 25 08:17:29 localhost kernel:                         [<c000000000253fdc>] .pci_device_remove+0x50/0x90
Sep 25 08:17:29 localhost kernel:                         [<c0000000002f5434>] .__device_release_driver+0x94/0xf8
Sep 25 08:17:29 localhost kernel:                         [<c0000000002f5560>] .driver_detach+0xc8/0xfc
Sep 25 08:17:29 localhost kernel:                         [<c0000000002f3fd8>] .bus_remove_driver+0xb4/0x114
Sep 25 08:17:29 localhost kernel:                         [<c0000000002f5d4c>] .driver_unregister+0x80/0xa4
Sep 25 08:17:29 localhost kernel:                         [<c00000000025421c>] .pci_unregister_driver+0x50/0xc8
Sep 25 08:17:29 localhost kernel:                         [<d00000000672e044>] .qlge_exit+0x1c/0x34 [qlge]
Sep 25 08:17:29 localhost kernel:                         [<c0000000000ac8b0>] .SyS_delete_module+0x234/0x2d0
Sep 25 08:17:29 localhost kernel:                         [<c000000000008554>] syscall_exit+0x0/0x40
Sep 25 08:17:29 localhost kernel:    INITIAL USE at:

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:03:08 -07:00
Ron Mercer
fd21cf52df qlge: Fix out of sync hardware semaphore.
ql_clear_routing_entries() takes/gives it's own hardware semaphore since
it is called from more than one place.  ql_route_initialize() should
make this call and THEN take it's own semaphore before doing it's work.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:03:07 -07:00
Ron Mercer
fbcbe56cf4 qlge: Fix bad bit definitions.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 20:03:05 -07:00
Peter P Waskiewicz Jr
6ad3810b0e ixgbe: Remove ATR computation for UDP traffic
ATR support for UDP on 82599 needs to be redesigned, since the
current model doesn't make much sense.  The fallout from having
it in though is it causes all UDP traffic to still compute the
ATR hashes on transmit, which are useless.  This removal will
return upwards of 10% of relative computational overhead in
forwarding tests.

Signed-off-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>
2009-09-30 20:03:02 -07:00
Ben Greear
aad719182d ixgbe patch to provide NIC's tx/rx counters via ethtool
When LRO is enabled, the received packet and byte counters represent the
LRO'd packets, not the packets/bytes on the wire.  The Intel 82599 NIC has
registers that keep count of the physical packets.  Add these counters to
the ethtool stats.  The byte counters are 36-bit, but the high 4 bits were
being ignored in the 2.6.31 ixgbe driver:  Read those as well to allow
longer time between polling the stats to detect wraps.

Signed-off-by: Ben Greear <greearb@candelatech.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>
2009-09-30 20:02:59 -07:00
Peter P Waskiewicz Jr
e0f4daffb3 ixgbe: Bump driver version number
A number of changes have gone in since the last version bump.  Bump
it to reflect the changes.

Signed-off-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>
2009-09-30 20:02:56 -07:00
Peter P Waskiewicz Jr
539e5f02c5 ixgbe: Fix backplane flow control autoneg
Backplane flow control autonegotiation is currently broken for
ixgbe devices.  This patch fixes the flow control issues
with clause 37 autoneg.

Signed-off-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>
2009-09-30 20:02:55 -07:00
Peter P Waskiewicz Jr
84f62d4b58 ixgbe: Fix disabling of relaxed ordering with Tx DCA
82599 has a different register offset for the Tx DCA control registers.
We disable relaxed ordering of the descriptor writebacks for Tx head
writeback, but didn't disable it properly for 82599.  However, this
shouldn't be a visible issue, since ixgbe doesn't use Tx head writeback.
This patch just makes sure we're not doing blind writes to offsets we
don't expect.

Signed-off-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>
2009-09-30 20:02:52 -07:00
Linus Torvalds
817b33d38f 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:
  ax25: Fix possible oops in ax25_make_new
  net: restore tx timestamping for accelerated vlans
  Phonet: fix mutex imbalance
  sit: fix off-by-one in ipip6_tunnel_get_prl
  net: Fix sock_wfree() race
  net: Make setsockopt() optlen be unsigned.
2009-09-30 17:36:45 -07:00
David S. Miller
b7058842c9 net: Make setsockopt() optlen be unsigned.
This provides safety against negative optlen at the type
level instead of depending upon (sometimes non-trivial)
checks against this sprinkled all over the the place, in
each and every implementation.

Based upon work done by Arjan van de Ven and feedback
from Linus Torvalds.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 16:12:20 -07:00
Linus Torvalds
5a4c8d75f4 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: (33 commits)
  sony-laptop: re-read the rfkill state when resuming from suspend
  sony-laptop: check for rfkill hard block at load time
  wext: add back wireless/ dir in sysfs for cfg80211 interfaces
  wext: Add bound checks for copy_from_user
  mac80211: improve/fix mlme messages
  cfg80211: always get BSS
  iwlwifi: fix 3945 ucode info retrieval after failure
  iwlwifi: fix memory leak in command queue handling
  iwlwifi: fix debugfs buffer handling
  cfg80211: don't set privacy w/o key
  cfg80211: wext: don't display BSSID unless associated
  net: Add explicit bound checks in net/socket.c
  bridge: Fix double-free in br_add_if.
  isdn: fix netjet/isdnhdlc build errors
  atm: dereference of he_dev->rbps_virt in he_init_group()
  ax25: Add missing dev_put in ax25_setsockopt
  Revert "sit: stateless autoconf for isatap"
  net: fix double skb free in dcbnl
  net: fix nlmsg len size for skb when error bit is set.
  net: fix vlan_get_size to include vlan_flags size
  ...
2009-09-30 08:07:12 -07:00
Christian Lamparter
e16c1bb67a ar9170: fix bug in iq-auto calibration value calculation
This patch fixes a embarrassing bug which was introduced by:
"[PATCH] ar9170: implement frequency calibration for one-stage/openfw"

The phy_data variable initialization has to done outside the for-loop
scope. This is because the for-loop uses u32 phy_data variable more
like a 4-byte field. But in each run only a single byte is calculated.
Therefore phy_data content needs to stay the same for at least 3 more
iterations, before the complete set can be uploaded.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-29 17:25:16 -04:00
Michal Szalata
78bd6bbf3c rt2x00: Thrustmaster FunAccess WIFI USB and rt73usb
Thrustmaster FunAccess WIFI USB works with rt73usb with little
modification of rt73usb.c.
Tested with version 2.3.0 of driver.

Signed-off-by: Michal Szalata <szalat@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-29 17:25:16 -04:00
Jouni Malinen
ffed1307c9 mac80211_hwsim: Fix initial beacon timer configuration
mac80211_hwsim does not start transmitting Beacon frames when hostapd
is started for the first time and restarting hostapd fixes this. The
issue is caused by the config() handler not being able to start
beacon_timer when beacon interval is not yet known and
bss_info_changed() handler not starting the timer. This can be fixed by
making the bss_info_changed() update the timer.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-29 17:25:16 -04:00
Michael Buesch
b96ab540c1 b43: Always use block-I/O for the PIO data registers
On SDIO the PIO data register seems to be hardwired to LE. So
the MACCTL bit has no effect on the endianness.
So also use block-I/O for the last word of the packet. block-I/O is always LE.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Tested-by: Albert Herranz <albert_herranz@yahoo.es>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-29 17:25:15 -04:00
Reinette Chatre
b7a794048f iwlwifi: fix 3945 ucode info retrieval after failure
When hardware or uCode problem occurs driver captures significant
information from device to enable debugging. The format of this information
is different between 3945 and 4965 and later devices, yet currently the
3945 uses the 4965 and later format. Fix this by adding a new library call
that is initialized to the correct formatting routine based on device.

This moves the iwlagn event and error log handling back to iwl-agn.c to
make it part of iwlagn module.

Also remove the 3945 sysfs file that triggers dump of event log - there is
already a debugfs file that can do it for all drivers.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-28 16:55:05 -04:00
Reinette Chatre
2814298639 iwlwifi: fix memory leak in command queue handling
Also free the array of command pointers and meta data of each
command buffer when command queue is freed.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-28 16:55:04 -04:00
Reinette Chatre
2fac9717a0 iwlwifi: fix debugfs buffer handling
We keep track of where to write into a buffer by keeping a count of how
much has been written so far. When writing to the buffer we thus take the
buffer pointer and adding the count of what has been written so far.
Keeping track of what has been written so far is done by incrementing
this number every time something is written to the buffer with how much has
been written at that time.

Currently this number is incremented incorrectly when using the
"hex_dump_to_buffer" call to add data to the buffer. Fix this by only
adding what has been added to the buffer in that call instead of what has
been added since beginning of buffer.

Issue was discovered and discussed during testing of
https://bugzilla.redhat.com/show_bug.cgi?id=464598 .

When a user views any of these files they will see something like:

[  179.355202] ------------[ cut here ]------------
[  179.355209] WARNING: at ../lib/vsprintf.c:989 vsnprintf+0x5ec/0x5f0()
[  179.355212] Hardware name: VGN-Z540N
[  179.355213] Modules linked in: i915 drm i2c_algo_bit i2c_core ipv6 acpi_cpufreq cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative cpufreq_stats freq_table container sbs sbshc arc4 ecb iwlagn iwlcore joydev led_class mac80211 af_packet pcmcia psmouse sony_laptop cfg80211 iTCO_wdt iTCO_vendor_support pcspkr serio_raw rfkill intel_agp video output tpm_infineon tpm tpm_bios button battery yenta_socket rsrc_nonstatic pcmcia_core processor ac evdev ext3 jbd mbcache sr_mod sg cdrom sd_mod ahci libata scsi_mod ehci_hcd uhci_hcd usbcore thermal fan thermal_sys
[  179.355262] Pid: 5449, comm: cat Not tainted 2.6.31-wl-54419-ge881071 #62
[  179.355264] Call Trace:
[  179.355267]  [<ffffffff811ad14c>] ? vsnprintf+0x5ec/0x5f0
[  179.355271]  [<ffffffff81041348>] warn_slowpath_common+0x78/0xd0
[  179.355275]  [<ffffffff810413af>] warn_slowpath_null+0xf/0x20
[  179.355277]  [<ffffffff811ad14c>] vsnprintf+0x5ec/0x5f0
[  179.355280]  [<ffffffff811ad23d>] ? scnprintf+0x5d/0x80
[  179.355283]  [<ffffffff811ad23d>] scnprintf+0x5d/0x80
[  179.355286]  [<ffffffff811aed29>] ? hex_dump_to_buffer+0x189/0x340
[  179.355290]  [<ffffffff810e91d7>] ? __kmalloc+0x207/0x260
[  179.355303]  [<ffffffffa02a02f8>] iwl_dbgfs_nvm_read+0xe8/0x220 [iwlcore]
[  179.355306]  [<ffffffff811a9b62>] ? __up_read+0x92/0xb0
[  179.355310]  [<ffffffff810f0988>] vfs_read+0xc8/0x1a0
[  179.355313]  [<ffffffff810f0b50>] sys_read+0x50/0x90
[  179.355316]  [<ffffffff8100bd6b>] system_call_fastpath+0x16/0x1b
[  179.355319] ---[ end trace 2383d0d5e0752ca0 ]---

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-28 16:55:04 -04:00
Don Skidmore
a71b4f5e2b e1000: cleanup unused prototype
The function e1000_enable_tx_pkt_filtering() was removed in
a previous cleanup patch.  this removes the no longer used
prototype.

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>
2009-09-26 20:16:05 -07:00
Jesse Brandeburg
11b7f7b378 e1000: fix namespacecheck warnings
a couple of functions needed to be removed/declared static

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:16:01 -07:00
Jesse Brandeburg
8f601b2d56 e1000: drop unused functionality for eeprom write/read
eerd and eewr don't exist on pre PCIe devices

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:58 -07:00
Jesse Brandeburg
120a5d0d58 e1000: updated whitespace and comments
A large whitespace change to e1000_hw.[ch] in order to update it to kernel coding
style (by running lindent).  Updated function header comments into kdoc style.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:55 -07:00
Jesse Brandeburg
650b5a5cc3 e1000: drop redunant line of code, cleanup
adapter was being assigned twice, also clarified variable name and unwrapped
line.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:52 -07:00
Jesse Brandeburg
3d6114e71d e1000: remove races when changing mtu
this patch fixes a bug that occurs when routing packets and simultaneously
changing the mtu.  the rx_buffer_len variable is used during the rx cleanup
and if that changes on the fly without stopping traffic bad things happen

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:47 -07:00
Jesse Brandeburg
8fce47317f e1000: two workarounds were incomplete, fix them
1) 82544 does not need last_tx_tso workaround, it interferes with the 82544
workaround too
2) 82544 hang workaround was using the address of the page struct instead of
the physical address as its "workaround decider" not sure how that ever worked

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:45 -07:00
Jesse Brandeburg
cdd7549e27 e1000: fix tx waking queue after queue stopped during shutdown
This fix closes a race where the adapter can be shutting down while
hard_start_xmit is being called and interrupts are being handled.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:42 -07:00
Jesse Brandeburg
be0f071956 e1000: test link state conclusively
e1000 was using one particular way to detect link, but with the advent
of some of the newer hardware designs using SERDES connections, tests
for link must completely cover all cases.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:36 -07:00
Jesse Brandeburg
baa34745fe e1000: stop timers at appropriate times
there were some hotplug cases that made timers still run after the driver
had been removed, make sure to stop all the timers and not allow racy
reschedules.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:34 -07:00
Jesse Brandeburg
5185107309 e1000: use netif_tx_disable
we can use netif_tx_disable now because LLTX has been removed.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:29 -07:00
Jesse Brandeburg
282b177782 e1000: remove unused functions
after removal of pcie, need to remove some unnecessary functions

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:26 -07:00
Jesse Brandeburg
1532ecea1d e1000: drop dead pcie code from e1000
this patch is the first in a series of clean up patches for e1000 to drop
unused code, and update the driver to kernel spec, and then, to update the
driver to have all available bug fixes.

Call it the e1000 weight loss plan.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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>
2009-09-26 20:15:23 -07:00
Alexey Dobriyan
1d1764c398 headers: kref.h redux
* remove asm/atomic.h inclusion from kref.h -- not needed, linux/types.h
  is enough for atomic_t
* remove linux/kref.h inclusion from files which do not need it.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-26 10:17:19 -07:00
Linus Torvalds
d8f654ef6a 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:
  at91_can: Forgotten git 'add' of at91_can.c
  TI Davinci EMAC: Fix in vector definition for EMAC_VERSION_2
  ax25: Fix ax25_cb refcounting in ax25_ctl_ioctl
  virtio_net: Check for room in the vq before adding buffer
  virtio_net: avoid (most) NETDEV_TX_BUSY by stopping queue early.
  virtio_net: formalize skb_vnet_hdr
  virtio_net: don't free buffers in xmit ring
  virtio_net: return NETDEV_TX_BUSY instead of queueing an extra skb.
  virtio_net: skb_orphan() and nf_reset() in xmit path.
2009-09-26 10:09:39 -07:00
David S. Miller
99c4a6344f at91_can: Forgotten git 'add' of at91_can.c
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-25 13:43:54 -07:00
Sriram
43c2ed8e9e TI Davinci EMAC: Fix in vector definition for EMAC_VERSION_2
In the emac_poll function when looking for interrupt status masks
correct definition must be chosen based on EMAC_VERSION(the bit
mask has changed from version 1 to version 2).

Signed-off-by: Sriram <srk@ti.com>
Acked-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-25 13:43:49 -07:00
David S. Miller
a91eba5b9d Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-davem 2009-09-25 11:09:08 -07:00
Linus Torvalds
5c3cc2084d 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: (94 commits)
  genetlink: fix netns vs. netlink table locking (2)
  3c59x: Get rid of "Trying to free already-free IRQ"
  tunnel: eliminate recursion field
  ems_pci: fix size of CAN controllers BAR mapping for CPC-PCI v2
  net: fix htmldocs sunrpc, clnt.c
  Phonet: error on broadcast sending (unimplemented)
  Phonet: fix race for port number in concurrent bind()
  pktgen: better scheduler friendliness
  pktgen: T_TERMINATE flag is unused
  ipv4: check optlen for IP_MULTICAST_IF option
  ath9k: Initialize txgain and rxgain for newer AR9287 chipsets.
  iwlagn: fix panic in iwl{5000,4965}_rx_reply_tx
  ath9k: Fix RFKILL bugs
  drivers/net/wireless: Use usb_endpoint_dir_out
  cfg80211: don't overwrite privacy setting
  wl12xx: fix kconfig/link errors
  rt2x00: fix the definition of rt2x00crypto_rx_insert_iv
  iwlwifi: reduce noise when skb allocation fails
  iwlwifi: do not send sync command while holding spinlock
  mac80211: fix DTIM setting
  ...
2009-09-25 07:22:11 -07:00
Linus Torvalds
5f8fe4270e Merge branch 'for-linus' of git://repo.or.cz/cris-mirror
* 'for-linus' of git://repo.or.cz/cris-mirror:
  CRIS: Cleanup linker script using new linker script macros.
  ARRAY_SIZE changes
  CRIS: convert to asm-generic/hardirq.h
  CRISv10: Don't autonegotiate if autonegotiation is off
  CRIS: fix defconfig build failure
  CRIS: add pgprot_noncached
2009-09-24 17:08:56 -07:00
Linus Torvalds
d9fbd9a2cd Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (103 commits)
  ARM: 5719/1: [AT91] Fix AC97 breakage
  ARM: 5721/1: MMCI enable the use of a regulator
  ARM: 5720/1: Move MMCI header to amba include dir
  ARM: 5718/1: Sane busids for RealView board components
  ARM: 5715/1: Make kprobes unregistration SMP safe
  ARM: 5711/1: locomo.c: CodingStyle cleanups
  ARM: 5710/1: at91: add AC97 support to at91sam9rl and at91sam9rlek board
  ARM: 5709/1: at91: add AC97 support to at91sam9g45 series and at91sam9m10g45ek board
  ARM: 5621/1: at91/dmaengine: integration of at_hdmac driver in at91sam9g45 series
  ARM: 5620/1: at91/dmaengine: integration of at_hdmac driver in at91sam9rl
  ARM: Add support for checking access permissions on prefetch aborts
  ARM: Separate out access error checking
  ARM: Ensure correct might_sleep() check in pagefault path
  ARM: Update page fault handling for new OOM techniques
  ARM: Provide definitions and helpers for decoding the FSR register
  ARM: 5712/1: SA1100: initialise spinlock in DMA code
  ARM: s3c: fix check of index into s3c_gpios[]
  ARM: spitz: fix touchscreen max presure
  ARM: STMP3xxx: deallocation with negative index of descriptors[]
  Thumb-2: Correctly handle undefined instructions in the kernel
  ...
2009-09-24 17:06:51 -07:00
Linus Torvalds
d7757be133 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: Don't turn on carrier for a non-active port
  IB/mthca: Fix access to freed memory in catastrophic event handling
  mlx4_core: Pass cache line size to device FW
  RDMA/nes: Remove duplicate .ndo_set_mac_address field initialization
  IB/mad: Fix lock-lock-timer deadlock in RMPP code
2009-09-24 17:06:01 -07:00
Anton Vorontsov
704cc92e9f 3c59x: Get rid of "Trying to free already-free IRQ"
Following trace pops up if we try to suspend with 3c59x ethernet NIC
brought down:

  root@b1:~# ifconfig eth16 down
  root@b1:~# echo mem > /sys/power/state
  ...
  3c59x 0000:00:10.0: suspend
  3c59x 0000:00:10.0: PME# disabled
  Trying to free already-free IRQ 48
  ------------[ cut here ]------------
  Badness at c00554e4 [verbose debug info unavailable]
  NIP: c00554e4 LR: c00554e4 CTR: c019a098
  REGS: c7975c60 TRAP: 0700   Not tainted  (2.6.31-rc4)
  MSR: 00021032 <ME,CE,IR,DR>  CR: 28242422  XER: 20000000
  TASK = c79cb0c0[1746] 'bash' THREAD: c7974000
  ...
  NIP [c00554e4] __free_irq+0x108/0x1b0
  LR [c00554e4] __free_irq+0x108/0x1b0
  Call Trace:
  [c7975d10] [c00554e4] __free_irq+0x108/0x1b0 (unreliable)
  [c7975d30] [c005559c] free_irq+0x10/0x24
  [c7975d40] [c01e21ec] vortex_suspend+0x70/0xc4
  [c7975d60] [c017e584] pci_legacy_suspend+0x58/0x100

This is because the driver manages interrupts without checking for
netif_running().

Though, there are few other issues with suspend/resume in this driver.
The intention of calling free_irq() in suspend() was to avoid any
possible spurious interrupts (see commit 5b039e681b
"3c59x PM fixes"). But,

- On resume, the driver was requesting IRQ just after pci_set_master(),
  but before vortex_up() (which actually resets 3c59x chips).

- Issuing free_irq() on a shared IRQ doesn't guarantee that a buggy
  HW won't trigger spurious interrupts in another driver that
  requested the same interrupt. So, if we want to protect from
  unexpected interrupts, then on suspend we should issue disable_irq(),
  not free_irq().

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-24 15:39:26 -07:00
Sebastian Haas
edf42a27e8 ems_pci: fix size of CAN controllers BAR mapping for CPC-PCI v2
The driver mapped only 128 bytes of the CAN controller address space when a
CPC-PCI v2 was detected (incl. CPC-104P). This patch will fix it by always
mapping the whole address space (4096 bytes on all boards) of the
corresponding PCI BAR.

Signed-off-by: Sebastian Haas <haas@ems-wuensche.com>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-24 15:39:18 -07:00
David S. Miller
8b3f6af863 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/cpc-usb/TODO
	drivers/staging/cpc-usb/cpc-usb_drv.c
	drivers/staging/cpc-usb/cpc.h
	drivers/staging/cpc-usb/cpc_int.h
	drivers/staging/cpc-usb/cpcusb.h
2009-09-24 15:13:11 -07:00
Russell King
baea7b946f Merge branch 'origin' into for-linus
Conflicts:
	MAINTAINERS
2009-09-24 21:22:33 +01:00
Eli Cohen
c57e20dcff mlx4_core: Pass cache line size to device FW
ConnectX can work more efficiently if the CPU cache line size is passed
to it with the INIT_HCA firmware command.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-24 11:03:03 -07:00
Alexey Dobriyan
8d65af789f sysctl: remove "struct file *" argument of ->proc_handler
It's unused.

It isn't needed -- read or write flag is already passed and sysctl
shouldn't care about the rest.

It _was_ used in two places at arch/frv for some reason.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-24 07:21:04 -07:00
Amit Shah
0aea51c37f virtio_net: Check for room in the vq before adding buffer
Saves us one cycle of alloc-add-free if the queue was full.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (modified)
2009-09-24 09:59:21 +09:30
Rusty Russell
48925e372f virtio_net: avoid (most) NETDEV_TX_BUSY by stopping queue early.
Now we can tell the theoretical capacity remaining in the output
queue, virtio_net can waste entries by stopping the queue early.

It doesn't work in the case of indirect buffers and kmalloc failure,
but that's rare (we could drop the packet in that case, but other
drivers return TX_BUSY for similar reasons).

For the record, I think this patch reflects poorly on the linux
network API.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Dinesh Subhraveti <dineshs@us.ibm.com>
2009-09-24 09:59:20 +09:30
Rusty Russell
b3f24698a7 virtio_net: formalize skb_vnet_hdr
We put the virtio_net_hdr into the skb's cb region; turn this into a
union to clean up the code slightly and allow future expansion.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mark McLoughlin <markmc@redhat.com>
Cc: Dinesh Subhraveti <dineshs@us.ibm.com>
2009-09-24 09:59:20 +09:30
Rusty Russell
b0c39dbdc2 virtio_net: don't free buffers in xmit ring
The virtio_net driver is complicated by the two methods of freeing old
xmit buffers (in addition to freeing old ones at the start of the xmit
path).

The original code used a 1/10 second timer attached to xmit_free(),
reset on every xmit.  Before we orphaned skbs on xmit, the
transmitting userspace could block with a full socket until the timer
fired, the skb destructor was called, and they were re-woken.

So we added the VIRTIO_F_NOTIFY_ON_EMPTY feature: supporting devices
send an interrupt (even if normally suppressed) on an empty xmit ring
which makes us schedule xmit_tasklet().  This was a benchmark win.

Unfortunately, VIRTIO_F_NOTIFY_ON_EMPTY makes quite a lot of work: a
host which is faster than the guest will fire the interrupt every xmit
packet (slowing the guest down further).  Attempting mitigation in the
host adds overhead of userspace timers (possibly with the additional
pain of signals), and risks increasing latency anyway if you get it
wrong.

In practice, this effect was masked by benchmarks which take advantage
of GSO (with its inherent transmit batching), but it's still there.

Now we orphan xmitted skbs, the pressure is off: remove both paths and
no longer request VIRTIO_F_NOTIFY_ON_EMPTY.  Note that the current
QEMU will notify us even if we don't negotiate this feature (legal,
but suboptimal); a patch is outstanding to improve that.

Move the skb_orphan/nf_reset to after we've done the send and notified
the other end, for a slight optimization.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mark McLoughlin <markmc@redhat.com>
2009-09-24 09:59:19 +09:30
Rusty Russell
8958f574db virtio_net: return NETDEV_TX_BUSY instead of queueing an extra skb.
This effectively reverts 99ffc696d1
"virtio: wean net driver off NETDEV_TX_BUSY".

The complexity of queuing an skb (setting a tasklet to re-xmit) is
questionable, especially once we get rid of the other reason for the
tasklet in the next patch.

If the skb won't fit in the tx queue, just return NETDEV_TX_BUSY.
This is frowned upon, so a followup patch uses a more complex solution.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
2009-09-24 09:59:19 +09:30
Rusty Russell
2b5bbe3b8b virtio_net: skb_orphan() and nf_reset() in xmit path.
The complex transmit free logic was introduced to avoid hangs on
removing the ip_conntrack module and also because drivers aren't
generally supposed to keep stale skbs for unbounded times.

After some debate, it was decided that while doing skb_orphan()
generally is a rat's nest, we can do it in this driver.  Following
patches take advantage of this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-09-24 09:59:18 +09:30
Li Zefan
79f5599772 cpumask: use zalloc_cpumask_var() where possible
Remove open-coded zalloc_cpumask_var() and zalloc_cpumask_var_node().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-09-24 09:34:24 +09:30
David S. Miller
139d6065c8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-rx.c
2009-09-23 16:23:46 -07:00
Linus Torvalds
be90a49ca2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (142 commits)
  USB: Fix sysfs paths in documentation
  USB: skeleton: fix coding style issues.
  USB: O_NONBLOCK in read path of skeleton
  USB: make usb-skeleton honor O_NONBLOCK in write path
  USB: skel_read really sucks royally
  USB: Add hub descriptor update hook for xHCI
  USB: xhci: Support USB hubs.
  USB: xhci: Set multi-TT field for LS/FS devices under hubs.
  USB: xhci: Set route string for all devices.
  USB: xhci: Fix command wait list handling.
  USB: xhci: Change how xHCI commands are handled.
  USB: xhci: Refactor input device context setup.
  USB: xhci: Endpoint representation refactoring.
  USB: gadget: ether needs to select CRC32
  USB: fix USBTMC get_capabilities success handling
  USB: fix missing error check in probing
  USB: usbfs: add USBDEVFS_URB_BULK_CONTINUATION flag
  USB: support for autosuspend in sierra while online
  USB: ehci-dbgp,ehci: Allow dbpg to work with suspend/resume
  USB: ehci-dbgp,documentation: Documentation updates for ehci-dbgp
  ...
2009-09-23 09:25:16 -07:00
Linus Torvalds
1f0918d03f Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  lguest: don't force VIRTIO_F_NOTIFY_ON_EMPTY
  lguest: cleanup for map_switcher()
  lguest: use PGDIR_SHIFT for PAE code to allow different PAGE_OFFSET
  lguest: use set_pte/set_pmd uniformly for real page table entries
  lguest: move panic notifier registration to its expected place.
  virtio_blk: add support for cache flush
  virtio: add virtio IDs file
  virtio: get rid of redundant VIRTIO_ID_9P definition
  virtio: make add_buf return capacity remaining
  virtio_pci: minor MSI-X cleanups
2009-09-23 09:23:45 -07:00
Vivek Natarajan
b37fa870c7 ath9k: Initialize txgain and rxgain for newer AR9287 chipsets.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:54 -04:00
Stanislaw Gruszka
6c6a22e268 iwlagn: fix panic in iwl{5000,4965}_rx_reply_tx
In some cases firmware can give us bad value of index in transmit
buffers array. This patch add sanity check for such values and return
from processing function instantly when it happens.

https://bugzilla.redhat.com/show_bug.cgi?id=521931

Patch was tested by reporter on iwl5000. I think check can be also
helpful for 4965.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:54 -04:00
Sujith
e31f7b96f0 ath9k: Fix RFKILL bugs
This patch fixes 2 issues in RFKILL:

* Calling wiphy_rfkill_stop_polling() in ath9k_stop
  would mean that the driver cannot report HW status
  when the radio is re-enabled. Move this to ath_detach().

* Calling ath_radio_{enable/disable} without checking the current
  state results in ath_radio_enable() being called repeatedly
  for every invocation of rfkill_poll(). This is not needed
  in any case since wiphy_rfkill_set_hw_state() would call
  ->stop() if the radio has been disabled.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:54 -04:00
Julia Lawall
33e2fb2f2b drivers/net/wireless: Use usb_endpoint_dir_out
Use the usb_endpoint_dir_out API function.  Note that the use of
USB_TYPE_MASK in the original code is incorrect; it results in a test that
is always false.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
struct usb_endpoint_descriptor *endpoint;
expression E;
@@

- (endpoint->bEndpointAddress & E) == USB_DIR_OUT
+ usb_endpoint_dir_out(endpoint)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:54 -04:00
Randy Dunlap
018ae37292 wl12xx: fix kconfig/link errors
"boolean" converts a module dependency (MAC80211=m) to YES,
then the WL12XX driver can be built-in instead of only
modular, which leads to linker errors:

wl1271_main.c:(.text+0x11177d): undefined reference to `ieee80211_frequency_to_channel'
wl1271_main.c:(.text+0x111adc): undefined reference to `ieee80211_stop_queues'
wl1271_main.c:(.text+0x112005): undefined reference to `ieee80211_scan_completed'
(.text+0x1139c8): undefined reference to `ieee80211_scan_completed'
(.text+0x113bb0): undefined reference to `ieee80211_tx_status'
(.text+0x113e53): undefined reference to `ieee80211_stop_queues'
(.text+0x113e8d): undefined reference to `ieee80211_wake_queues'
(.text+0x113f3b): undefined reference to `ieee80211_tx_status'
(.text+0x113f60): undefined reference to `ieee80211_tx_status'
(.text+0x1140f0): undefined reference to `ieee80211_channel_to_frequency'
(.text+0x114153): undefined reference to `ieee80211_rx'
wl1271_main.c:(.devinit.text+0xca08): undefined reference to `ieee80211_alloc_hw'
wl1271_main.c:(.devinit.text+0xccf5): undefined reference to `ieee80211_register_hw'
wl1271_main.c:(.devinit.text+0xcd6b): undefined reference to `ieee80211_free_hw'
wl1271_main.c:(.devexit.text+0x1353): undefined reference to `ieee80211_unregister_hw'
wl1271_main.c:(.devexit.text+0x13c9): undefined reference to `ieee80211_free_hw'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:53 -04:00
Andrew Price
fe24756336 rt2x00: fix the definition of rt2x00crypto_rx_insert_iv
Remove the redundant l2pad parameter from the definition of
rt2x00crypto_rx_insert_iv which is used when only CONFIG_RT2500PCI but
none of the other rt2x00 family drivers is configured.

Signed-off-by: Andrew Price <andy@andrewprice.me.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:53 -04:00
Reinette Chatre
f82a924cc8 iwlwifi: reduce noise when skb allocation fails
Replenishment of receive buffers is done in the tasklet handling
received frames as well as in a workqueue. When we are in the tasklet
we cannot sleep and thus attempt atomic skb allocations. It is generally
not a big problem if this fails since iwl_rx_allocate is always followed
by a call to iwl_rx_queue_restock which will queue the work to replenish
the buffers at a time when sleeping is allowed.

We thus add the __GFP_NOWARN to the skb allocation in iwl_rx_allocate to
reduce the noise if such an allocation fails while we still have enough
buffers. We do maintain the warning and the error message when we are low
on buffers to communicate to the user that there is a potential problem with
memory availability on system

This addresses issue reported upstream in thread "iwlagn: order 2 page
allocation failures" in
http://thread.gmane.org/gmane.linux.kernel.wireless.general/39187

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:53 -04:00
Reinette Chatre
bba98871c6 iwlwifi: do not send sync command while holding spinlock
commit 10c994ca70e8e94bbc85a5bf13de5911ee8de4d2 "iwlwifi: fix remove key
error" fixed an error reported by mac80211 during interface down. The fix
involved changing an async command to synchronous. Unfortunately this was
inside a spinlock section in which we cannot sleep.

Modify the sending of the command back to async. This causes the mac80211
error "mac80211-phy0: failed to remove key (0, ff:ff:ff:ff:ff:ff) from
hardware (-16)." to return. This error is not serious since this occurs
during interface down and the keys will be cleared anyway when ucode is
unloaded. Having this error message is thus less serious than a potential
deadlock introduced when sleeping while holding a spinlock. We will have to
find another fix for that error.

This is a revert of the abovementioned commit.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:53 -04:00
Christian Lamparter
fe9f6342c8 ar9170usb: add usbid for TP-Link TL-WN821N v2
This patch adds the usbid for TP-Link TL-WN821N v2.

Cc: stable@kernel.org
Reported-by: Fabian Lenz <lenz_fabian@yahoo.de>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:53 -04:00
Vivek Natarajan
a3ca95fbe4 ath9k: Disable autosleep feature by default.
Autosleep needs to be disabled for AR9287 chipsets also.
Since autosleep is not used for any of the currently supported
chipsets, disable it by default and can be enabled if needed
for any of the future chipsets.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:53 -04:00
Sujith
edbf51f65e ath9k: Fix regression in PA calibration
The commit "ath9k: Fix bugs in programming registers during PA CAL"
removed a REG_READ of 0x7834. This resulted in incorrect
computation of the subsequent value to be written in RF2G6.

This patch fixes the regression by re-adding the REG_READ.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Senthil Balasubramanian
d865ca6c14 ath9k: Fix bug in chain handling
* This patch fixes a bug in calculating the scaled
  power for three chain chipsets.

* Also, a delay is needed after setting DAC low-power mode in
  TOP1 RF register (Top Level Register Bits).

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vivek Natarajan
42abfbee23 ath9k: Fix AHB reset for AR9280
The commit "ath9k: Do an AHB reset before doing RTC reset"
fixed RTC reset issue for AR9280 2.0 chipsets and above.
The fix is valid for all AR9280 chipsets.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Senthil Balasubramanian
ce143bb044 ath9k: Adjust the chainmasks properly
This is needed to account for the number of chains in use,
not just the number of chains present.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vasanthakumar Thiagarajan
0a475cc6a0 ath9k: Do a full reset for AR9280
AR9280 requires a full reset during channel change and HW reset.
Currently, a fast channel change is done. This patch fixes
this bug.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vasanthakumar Thiagarajan
9ebef7997d ath9k: Don't read NF when chip has gone through full sleep mode
NF value may be incorrect when we read it just after the chip
has gone through a full sleep mode. Reading incorrect NF values
affects RX throughput.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:52 -04:00
Vasanthakumar Thiagarajan
204d794086 ath9k: Fix rx data corruption
Setting bit 20 and 25 of 0x8344 can cause occasional rx data
corruption, clear them to fix this issue.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:51 -04:00
Sujith
d8caa83967 ath9k: Fix chip wakeup issue
Waking up the chip after powering it down fails sometimes.
In this case the CPU is locked for 200ms. Reduce this
interval to 10ms to avoid excessive busy looping.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:51 -04:00
Sujith
46fe782c97 ath9k: Restore TSF after RESET
For chips requiring RTC reset, TSF has to be restored
after power on reset.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:51 -04:00
Vivek Natarajan
93b1b37f6a ath9k: Revamp PCIE workarounds
* Disable L1 state ONLY when device is in D3 mode.
* Clear bit 22 of register 0x4004.
* Handle power on/off properly

Not setting the workarounds properly resulted in the
disappearance of the card in certain cases.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:50 -04:00
Vivek Natarajan
6170cd5c72 ath9k: Set default noise floor value for AR9287
The default noise floor was never initialized for
AR9287.This patch helps in reporting the correct
RSSI for this version of chipset.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:45 -04:00
Larry Finger
692e565e4b b43: Implement RFKILL status for LP PHY
The LP (and probably N) PHY has the same radio disabled bit as
the higher-revision A and G PHYs.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23 11:35:45 -04:00