firefly-linux-kernel-4.4.55.git
13 years agocan/sja1000: add driver for EMS PCMCIA card
Oliver Hartkopp [Fri, 23 Sep 2011 06:59:48 +0000 (06:59 +0000)]
can/sja1000: add driver for EMS PCMCIA card

This patch adds the driver for the SJA1000 based PCMCIA card 'CPC-Card' from
EMS Dr. Thomas Wuensche (http://www.ems-wuensche.de).

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Markus Plessing <plessing@ems-wuensche.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoconnector: add comm change event report to proc connector
Vladimir Zapolskiy [Wed, 21 Sep 2011 09:26:44 +0000 (09:26 +0000)]
connector: add comm change event report to proc connector

Add an event to monitor comm value changes of tasks.  Such an event
becomes vital, if someone desires to control threads of a process in
different manner.

A natural characteristic of threads is its comm value, and helpfully
application developers have an opportunity to change it in runtime.
Reporting about such events via proc connector allows to fine-grain
monitoring and control potentials, for instance a process control daemon
listening to proc connector and following comm value policies can place
specific threads to assigned cgroup partitions.

It might be possible to achieve a pale partial one-shot likeness without
this update, if an application changes comm value of a thread generator
task beforehand, then a new thread is cloned, and after that proc
connector listener gets the fork event and reads new thread's comm value
from procfs stat file, but this change visibly simplifies and extends the
matter.

Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: rps: fix the support for PPPOE
Changli Gao [Tue, 20 Sep 2011 22:36:07 +0000 (22:36 +0000)]
net: rps: fix the support for PPPOE

The upper protocol numbers of PPPOE are different, and should be treated
specially.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoaf_unix: dont send SCM_CREDENTIALS by default
Eric Dumazet [Mon, 19 Sep 2011 05:52:27 +0000 (05:52 +0000)]
af_unix: dont send SCM_CREDENTIALS by default

Since commit 7361c36c5224 (af_unix: Allow credentials to work across
user and pid namespaces) af_unix performance dropped a lot.

This is because we now take a reference on pid and cred in each write(),
and release them in read(), usually done from another process,
eventually from another cpu. This triggers false sharing.

# Events: 154K cycles
#
# Overhead  Command       Shared Object        Symbol
# ........  .......  ..................  .........................
#
    10.40%  hackbench  [kernel.kallsyms]   [k] put_pid
     8.60%  hackbench  [kernel.kallsyms]   [k] unix_stream_recvmsg
     7.87%  hackbench  [kernel.kallsyms]   [k] unix_stream_sendmsg
     6.11%  hackbench  [kernel.kallsyms]   [k] do_raw_spin_lock
     4.95%  hackbench  [kernel.kallsyms]   [k] unix_scm_to_skb
     4.87%  hackbench  [kernel.kallsyms]   [k] pid_nr_ns
     4.34%  hackbench  [kernel.kallsyms]   [k] cred_to_ucred
     2.39%  hackbench  [kernel.kallsyms]   [k] unix_destruct_scm
     2.24%  hackbench  [kernel.kallsyms]   [k] sub_preempt_count
     1.75%  hackbench  [kernel.kallsyms]   [k] fget_light
     1.51%  hackbench  [kernel.kallsyms]   [k]
__mutex_lock_interruptible_slowpath
     1.42%  hackbench  [kernel.kallsyms]   [k] sock_alloc_send_pskb

This patch includes SCM_CREDENTIALS information in a af_unix message/skb
only if requested by the sender, [man 7 unix for details how to include
ancillary data using sendmsg() system call]

Note: This might break buggy applications that expected SCM_CREDENTIAL
from an unaware write() system call, and receiver not using SO_PASSCRED
socket option.

If SOCK_PASSCRED is set on source or destination socket, we still
include credentials for mere write() syscalls.

Performance boost in hackbench : more than 50% gain on a 16 thread
machine (2 quad-core cpus, 2 threads per core)

hackbench 20 thread 2000

4.228 sec instead of 9.102 sec

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoskge: handle irq better on single port card
Stephen Hemminger [Tue, 27 Sep 2011 17:41:37 +0000 (13:41 -0400)]
skge: handle irq better on single port card

Most boards with SysKonnect/Marvell Ethernet have only a single port.
For the single port case, use the standard Ethernet driver convention
of allocating IRQ when device is brought up rather than at probe time.

This patch also adds some additional read after writes to avoid any
PCI posting problems when setting the IRQ mask.

The error handling of dual port cards is also changed.  If second port
can not be brought up, then just fail. No point in continuing, since
the failure is most certainly because of out of memory.

It is worth noting that the dual port skge device has a single irq but two
seperate status rings and therefore has two NAPI objects, one for
each port.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobe2net: Show newly flashed FW ver in ethtool
Sathya Perla [Tue, 27 Sep 2011 17:30:27 +0000 (13:30 -0400)]
be2net: Show newly flashed FW ver in ethtool

This fix provides a newly flashed FW version (appended, in braces)
along with the currently running FW version via ethtool. The newly
flashed version runs only after a system reset.

Signed-off-by: Suresh Reddy <Suresh.Reddy@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobe2net: fix multicast filter programming
Sathya Perla [Tue, 27 Sep 2011 17:29:38 +0000 (13:29 -0400)]
be2net: fix multicast filter programming

 Re-posting with subject fixed!

 Multicast programming has been broken since commit 5b8821b7. Setting the
 MULTICAST flag while sending the cmd to the FW was missing. Fixed this.

Also fixed-up some indentation in the adjacent lines.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotcp: rename tcp_skb_cb flags
Eric Dumazet [Tue, 27 Sep 2011 17:25:05 +0000 (13:25 -0400)]
tcp: rename tcp_skb_cb flags

Rename struct tcp_skb_cb "flags" to "tcp_flags" to ease code review and
maintenance.

Its content is a combination of FIN/SYN/RST/PSH/ACK/URG/ECE/CWR flags

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotcp: unalias tcp_skb_cb flags and ip_dsfield
Eric Dumazet [Tue, 27 Sep 2011 06:20:08 +0000 (02:20 -0400)]
tcp: unalias tcp_skb_cb flags and ip_dsfield

struct tcp_skb_cb contains a "flags" field containing either tcp flags
or IP dsfield depending on context (input or output path)

Introduce ip_dsfield to make the difference clear and ease maintenance.
If later we want to save space, we can union flags/ip_dsfield

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoenic: Add support for port profile association on a enic SRIOV VF
Roopa Prabhu [Thu, 22 Sep 2011 03:44:43 +0000 (03:44 +0000)]
enic: Add support for port profile association on a enic SRIOV VF

This patch touchs most of the enic port profile handling code.
Tried to break it into sub patches without success.

The patch mainly does the following:
- Port profile operations for a SRIOV VF are modified to work
  only via its PF
- Changes the port profile static struct in struct enic to a pointer.
  This is because a SRIOV PF has to now hold the port profile information
  for all its VF's
- Moved address registration for VF's during port profile ASSOCIATE time
- Most changes in port profile handling code are changes related to indexing
  into the port profile struct array of a PF for the VF port profile
  information

Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Sujith Sankar <ssujith@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoenic: Helper code for SRIOV proxy commands
Roopa Prabhu [Thu, 22 Sep 2011 03:44:38 +0000 (03:44 +0000)]
enic: Helper code for SRIOV proxy commands

This patch adds helper functions to use PF as proxy for SRIOV VF firmware
commands.

Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Sujith Sankar <ssujith@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoenic: Add SRIOV support
Roopa Prabhu [Thu, 22 Sep 2011 03:44:33 +0000 (03:44 +0000)]
enic: Add SRIOV support

This patch adds support to enable SRIOV on enic devices. Enic SRIOV VF's are dynamic vnics and will use the same driver code as dynamic vnics.

Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Sujith Sankar <ssujith@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotcp: ECN blackhole should not force quickack mode
Eric Dumazet [Thu, 22 Sep 2011 20:02:19 +0000 (20:02 +0000)]
tcp: ECN blackhole should not force quickack mode

While playing with a new ADSL box at home, I discovered that ECN
blackhole can trigger suboptimal quickack mode on linux : We send one
ACK for each incoming data frame, without any delay and eventual
piggyback.

This is because TCP_ECN_check_ce() considers that if no ECT is seen on a
segment, this is because this segment was a retransmit.

Refine this heuristic and apply it only if we seen ECT in a previous
segment, to detect ECN blackhole at IP level.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Jamal Hadi Salim <jhs@mojatatu.com>
CC: Jerry Chu <hkchu@google.com>
CC: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
CC: Jim Gettys <jg@freedesktop.org>
CC: Dave Taht <dave.taht@gmail.com>
Acked-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosky2: manage irq better on single port card
stephen hemminger [Fri, 23 Sep 2011 11:13:40 +0000 (11:13 +0000)]
sky2: manage irq better on single port card

Most sky2 hardware only has a single port, although some variations of the
chip support two interfaces.  For the single port case, use the standard
Ethernet driver convention of allocating IRQ when device is brought up
rather than at probe time.

Also, change the error handling of dual port cards so that if second
port can not be brought up, then just fail. No point in continuing, since
the failure is most certainly because of out of memory.

The dual port sky2 device has a single irq and a single status ring,
therefore it has a single NAPI object shared by both ports.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agopch_gbe: remove unused variable
Jon Mason [Mon, 26 Sep 2011 09:37:38 +0000 (09:37 +0000)]
pch_gbe: remove unused variable

netdev is unused in pch_gbe_setup_rctl.  Remove this declaration to
avoid a compiler warning.

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoxen/pciback: Add flag indicating device has been assigned by Xen
Konrad Rzeszutek Wilk [Mon, 26 Sep 2011 16:22:01 +0000 (12:22 -0400)]
xen/pciback: Add flag indicating device has been assigned by Xen

Device drivers that create and destroy SR-IOV virtual functions via
calls to pci_enable_sriov() and pci_disable_sriov can cause catastrophic
failures if they attempt to destroy VFs while they are assigned to
guest virtual machines.  By adding a flag for use by the Xen PCI back
to indicate that a device is assigned a device driver can check that
flag and avoid destroying VFs while they are assigned and avoid system
failures.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoehea: Remove sleep at .ndo_get_stats
brenohl@br.ibm.com [Mon, 26 Sep 2011 10:11:03 +0000 (10:11 +0000)]
ehea: Remove sleep at .ndo_get_stats

Currently ehea ndo_get_stats can sleep in two places, in a hcall
and in a GFP_KERNEL alloc, which is not correct.
This patch creates a delayed workqueue that grabs the information each 1
sec from the hardware, and place it into the device structure, so that,
.ndo_get_stats quickly returns the device structure statistics block.

Signed-off-by: Breno Leitao <brenohl@br.ibm.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodp83640: add time stamp insertion for sync messages
Richard Cochran [Tue, 20 Sep 2011 01:43:16 +0000 (01:43 +0000)]
dp83640: add time stamp insertion for sync messages

This commit adds one step support to the phyter. When enabled, the
hardware does not provide time stamps for transmitted sync messages but
instead inserts the stamp into the outgoing packet.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: introduce ptp one step time stamp mode for sync packets
Richard Cochran [Tue, 20 Sep 2011 01:43:15 +0000 (01:43 +0000)]
net: introduce ptp one step time stamp mode for sync packets

The IEEE 1588 standard (PTP) has a provision for a "one step" mode, where
time stamps on outgoing event packets are inserted into the packet by the
hardware on the fly. This patch adds a new flag for the SIOCSHWTSTAMP
ioctl that lets user space programs request this mode.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodp83640: enable six external events and one periodic output
Richard Cochran [Tue, 20 Sep 2011 01:43:14 +0000 (01:43 +0000)]
dp83640: enable six external events and one periodic output

This patch enables six external event channels and one periodic output.
One GPIO is reserved for synchronizing multiple PHYs. The assignment
of GPIO functions can be changed via a module parameter.

The code supports multiple simultaneous events by inducing a PTP clock
event for every channel marked in the PHY's extended status word.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoqlcnic: Change CDRP function
Anirban Chakraborty [Tue, 13 Sep 2011 08:06:18 +0000 (08:06 +0000)]
qlcnic: Change CDRP function

Argument list to CDRP function has become unmanageably long. Fix it by properly
declaring a struct that encompasses all the input and output parameters.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoqlcnic: Added error logging for firmware abort
Ameen Rahman [Tue, 13 Sep 2011 08:06:17 +0000 (08:06 +0000)]
qlcnic: Added error logging for firmware abort

Signed-off-by: Ameen Rahman <ameen.rahman@qlogic.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge git://github.com/Jkirsher/net-next
David S. Miller [Fri, 23 Sep 2011 17:56:44 +0000 (13:56 -0400)]
Merge git://github.com/Jkirsher/net-next

13 years agonet/fec: add imx6q enet support
Shawn Guo [Fri, 23 Sep 2011 02:12:48 +0000 (02:12 +0000)]
net/fec: add imx6q enet support

The imx6q enet is a derivative of imx28 enet controller.  It fixed
the frame endian issue found on imx28, and added 1 Gbps support.

It also fixes a typo on vendor name in Kconfig.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet/fec: fix fec1 check in fec_enet_mii_init()
Shawn Guo [Fri, 23 Sep 2011 02:12:47 +0000 (02:12 +0000)]
net/fec: fix fec1 check in fec_enet_mii_init()

In function fec_enet_mii_init(), it uses non-zero pdev->id as part
of the condition to check the second fec instance (fec1).  This works
before the driver supports device tree probe.  But in case of device
tree probe, pdev->id is -1 which is also non-zero, so the logic becomes
broken when device tree probe gets supported.

The patch change the logic to check "pdev->id > 0" as the part of the
condition for identifying fec1.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet/fec: fec_reset_phy() does not need to always succeed
Shawn Guo [Fri, 23 Sep 2011 02:12:46 +0000 (02:12 +0000)]
net/fec: fec_reset_phy() does not need to always succeed

FEC can work without a phy reset on some platforms, which means not
very platform necessarily have a phy-reset gpio encoded in device tree.
Even on the platforms that have the gpio, FEC can work without
resetting phy for some cases, e.g. boot loader has done that.

So it makes more sense to have the phy-reset-gpio request failure as
a debug message rather than a warning, and get fec_reset_phy() return
void since the caller does not check the return anyway.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoixgb: finish conversion to ndo_fix_features
Michał Mirosław [Fri, 23 Sep 2011 02:11:30 +0000 (02:11 +0000)]
ixgb: finish conversion to ndo_fix_features

Finish conversion to unified ethtool ops: convert get_flags.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoixgb: eliminate checkstack warnings
Jesse Brandeburg [Fri, 23 Sep 2011 02:11:29 +0000 (02:11 +0000)]
ixgb: eliminate checkstack warnings

Really trivial fix, use kmalloc/kfree instead of stack space.
use static const instead of const to further reduce stack usage.

V2: reflect changes suggested by Joe Perches

before:
[jbrandeb@jbrandeb-mobl2 linux-2.6]$ make checkstack|grep '\[ixgb\]'
0x00000fc1 ixgb_set_multi [ixgb]:                       768
0x00001031 ixgb_set_multi [ixgb]:                       768
0x000010f2 ixgb_set_multi [ixgb]:                       768
0x061c ixgb_check_options [ixgb]:                       448
0x09c3 ixgb_check_options [ixgb]:                       448
0x0000649e ixgb_set_ringparam [ixgb]:                   192
0x0000130d ixgb_xmit_frame [ixgb]:                      184
0x000019e0 ixgb_xmit_frame [ixgb]:                      184
0x00002267 ixgb_clean [ixgb]:                           152
0x00002673 ixgb_clean [ixgb]:                           152

after:
0x000064ee ixgb_set_ringparam [ixgb]:                   192
0x0000135d ixgb_xmit_frame [ixgb]:                      184
0x00001a30 ixgb_xmit_frame [ixgb]:                      184
0x000022b7 ixgb_clean [ixgb]:                           152
0x000026c3 ixgb_clean [ixgb]:                           152

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'davem-next.r8169' of git://violet.fr.zoreil.com/romieu/linux
David S. Miller [Fri, 23 Sep 2011 17:46:03 +0000 (13:46 -0400)]
Merge branch 'davem-next.r8169' of git://violet.fr.zoreil.com/romieu/linux

13 years agoseeq: fix compile breakage on s390
Heiko Carstens [Thu, 22 Sep 2011 07:44:54 +0000 (03:44 -0400)]
seeq: fix compile breakage on s390

The SEEQ drivers should depend on HAS_IOMEM to prevent compile breakage
on !HAS_IOMEM architectures:

drivers/net/ethernet/seeq/seeq8005.c: In function 'seeq8005_probe1':
drivers/net/ethernet/seeq/seeq8005.c:179:2: error:
  implicit declaration of function 'inw' [-Werror=implicit-function-declaration]

Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoixgbe: remove global reset to the MAC
Emil Tantilov [Tue, 16 Aug 2011 08:04:11 +0000 (08:04 +0000)]
ixgbe: remove global reset to the MAC

Reloading FW during resets can cause issues. Remove the full reset
as it is not needed.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
13 years agoixgbe: add WOL support for X540
Emil Tantilov [Tue, 16 Aug 2011 07:34:18 +0000 (07:34 +0000)]
ixgbe: add WOL support for X540

Add support for WOL as determined by the EEPROM.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
13 years agoixgbe: avoid HW lockup when adapter is reset with Tx work pending
Emil Tantilov [Tue, 16 Aug 2011 04:35:11 +0000 (04:35 +0000)]
ixgbe: avoid HW lockup when adapter is reset with Tx work pending

This change is meant to avoid a hardware lockup when Tx work is still
pending and we request a reset.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
13 years agoixgbe: dcb, set priority to traffic class mappings
John Fastabend [Thu, 4 Aug 2011 07:15:55 +0000 (07:15 +0000)]
ixgbe: dcb, set priority to traffic class mappings

This patch adds support for configuring the priority to
traffic class mapping.

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>
13 years agoixgbe: cleanup X540 interrupt enablement
Don Skidmore [Thu, 4 Aug 2011 09:28:30 +0000 (09:28 +0000)]
ixgbe: cleanup X540 interrupt enablement

We don't need SFP+ plugable support for X540 hardware (copper only) so
don't enable the SFP+ interrupts.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
13 years agoixgbe: DCB, do not call set_state() from IEEE mode
John Fastabend [Thu, 4 Aug 2011 05:47:07 +0000 (05:47 +0000)]
ixgbe: DCB, do not call set_state() from IEEE mode

The DCB CEE command set_state() will complete successfully
but is misleading because it enables IEEE mode. After
this patch the command is failed.

And IEEE PFC/ETS is managed from ieee paths now instead
of using CEE primitives.

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>
13 years agoixgbe: Reconfigure SR-IOV Init
Greg Rose [Wed, 24 Aug 2011 02:37:55 +0000 (02:37 +0000)]
ixgbe: Reconfigure SR-IOV Init

Use the PCI device flag indicating if a VF is assigned to a guest VM
to guard against destroying VFs upon driver removal.  Implement
additional feature to detect if VFs already exist when the driver
is loaded and if so configure them and set the driver state to
SR-IOV enabled.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
13 years agopci: Add flag indicating device has been assigned by KVM
Greg Rose [Fri, 22 Jul 2011 05:46:07 +0000 (05:46 +0000)]
pci: Add flag indicating device has been assigned by KVM

Device drivers that create and destroy SR-IOV virtual functions via
calls to pci_enable_sriov() and pci_disable_sriov can cause catastrophic
failures if they attempt to destroy VFs while they are assigned to
guest virtual machines.  By adding a flag for use by the KVM module
to indicate that a device is assigned a device driver can check that
flag and avoid destroying VFs while they are assigned and avoid system
failures.

CC: Ian Campbell <ijc@hellion.org.uk>
CC: Konrad Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
13 years agovmxnet3: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:28 +0000 (21:53 +0000)]
vmxnet3: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Shreyas Bhatewara <sbhatewara@vmware.com>
Cc: "VMware, Inc." <pv-drivers@vmware.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agovirtionet: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:27 +0000 (21:53 +0000)]
virtionet: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agovia-velocity: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:26 +0000 (21:53 +0000)]
via-velocity: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotyphoon: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:25 +0000 (21:53 +0000)]
typhoon: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: David Dillow <dave@thedillows.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotsi108: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:24 +0000 (21:53 +0000)]
tsi108: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotehuti: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:23 +0000 (21:53 +0000)]
tehuti: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Alexander Indenbaum <baum@tehutinetworks.net>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosunhme: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:22 +0000 (21:53 +0000)]
sunhme: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosungem: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:21 +0000 (21:53 +0000)]
sungem: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agostmmac: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:20 +0000 (21:53 +0000)]
stmmac: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agostarfire: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:19 +0000 (21:53 +0000)]
starfire: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosky2: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:18 +0000 (21:53 +0000)]
sky2: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoskge: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:17 +0000 (21:53 +0000)]
skge: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosfc: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:16 +0000 (21:53 +0000)]
sfc: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
Cc: Steve Hodgson <shodgson@solarflare.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agos2io: convert to SKB paged frag API.
Ian Campbell [Wed, 21 Sep 2011 21:53:15 +0000 (21:53 +0000)]
s2io: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agor8169: jumbo fixes.
Francois Romieu [Tue, 3 May 2011 14:38:29 +0000 (16:38 +0200)]
r8169: jumbo fixes.

- fix features : jumbo frames and checksumming can not be used at the
  same time.

- introduce hw_jumbo_{enable / disable} helpers. Their content has been
  creatively extracted from Realtek's own drivers. As an illustration,
  it would be nice to know how/if the MaxTxPacketSize register operates
  when the device can work with a 9k jumbo frame as its documentation
  (8168c) can not be applied beyond ~7k.

- rtl_tx_performance_tweak is moved forward. No change.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
13 years agor8169: expand received packet length indication.
Francois Romieu [Tue, 12 Jul 2011 06:24:28 +0000 (08:24 +0200)]
r8169: expand received packet length indication.

8168d and above allow jumbo frames beyond 8k. Bump the received
packet length check before enabling jumbo frames on these chipsets.

Frame length indication covers bits 0..13 of the first Rx descriptor
32 bits for the 8169 and 8168. I only have authoritative documentation
for the allowed use of the extra (13) bit with the 8169 and 8168c.
Realtek's drivers use the same mask for the 816x and the fast ethernet
only 810x.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
13 years agor8169: support new chips of RTL8111F
Hayes Wang [Tue, 6 Sep 2011 08:55:18 +0000 (16:55 +0800)]
r8169: support new chips of RTL8111F

Support new chips of RTL8111F.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
13 years agor8169: define the early size for 8111evl
Hayes Wang [Tue, 6 Sep 2011 08:55:15 +0000 (16:55 +0800)]
r8169: define the early size for 8111evl

For RTL8111EVL, the register of MaxTxPacketSize doesn't acctually
limit the tx size. It influnces the feature of early tx.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
13 years agoMerge branch 'master' of github.com:davem330/net
David S. Miller [Thu, 22 Sep 2011 07:23:13 +0000 (03:23 -0400)]
Merge branch 'master' of github.com:davem330/net

Conflicts:
MAINTAINERS
drivers/net/Kconfig
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
drivers/net/ethernet/broadcom/tg3.c
drivers/net/wireless/iwlwifi/iwl-pci.c
drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
drivers/net/wireless/rt2x00/rt2800usb.c
drivers/net/wireless/wl12xx/main.c

13 years agobna: PCI Probe Conf Lock Fix
Rasesh Mody [Thu, 22 Sep 2011 00:55:41 +0000 (20:55 -0400)]
bna: PCI Probe Conf Lock Fix

If register_netdev() fails now, then we call mutex_unlock(&bnad->conf_mutex);
on the error path, but it's already unlocked. So we acquire the lock in error
path which will be later unlocked after the cleanup.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'master' of github.com:davem330/net-next
David S. Miller [Thu, 22 Sep 2011 00:44:50 +0000 (20:44 -0400)]
Merge branch 'master' of github.com:davem330/net-next

13 years agoLinux 3.1-rc7
Linus Torvalds [Wed, 21 Sep 2011 23:58:15 +0000 (16:58 -0700)]
Linux 3.1-rc7

13 years agoXZ: Fix incorrect XZ_BUF_ERROR
Lasse Collin [Wed, 21 Sep 2011 14:30:50 +0000 (17:30 +0300)]
XZ: Fix incorrect XZ_BUF_ERROR

xz_dec_run() could incorrectly return XZ_BUF_ERROR if all of the
following was true:

 - The caller knows how many bytes of output to expect and only provides
   that much output space.

 - When the last output bytes are decoded, the caller-provided input
   buffer ends right before the LZMA2 end of payload marker.  So LZMA2
   won't provide more output anymore, but it won't know it yet and thus
   won't return XZ_STREAM_END yet.

 - A BCJ filter is in use and it hasn't left any unfiltered bytes in the
   temp buffer.  This can happen with any BCJ filter, but in practice
   it's more likely with filters other than the x86 BCJ.

This fixes <https://bugzilla.redhat.com/show_bug.cgi?id=735408> where
Squashfs thinks that a valid file system is corrupt.

This also fixes a similar bug in single-call mode where the uncompressed
size of a block using BCJ + LZMA2 was 0 bytes and caller provided no
output space.  Many empty .xz files don't contain any blocks and thus
don't trigger this bug.

This also tweaks a closely related detail: xz_dec_bcj_run() could call
xz_dec_lzma2_run() to decode into temp buffer when it was known to be
useless.  This was harmless although it wasted a minuscule number of CPU
cycles.

Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://github.com/davem330/net
Linus Torvalds [Wed, 21 Sep 2011 20:35:00 +0000 (13:35 -0700)]
Merge git://github.com/davem330/net

* git://github.com/davem330/net: (27 commits)
  xfrm: Perform a replay check after return from async codepaths
  fib:fix BUG_ON in fib_nl_newrule when add new fib rule
  ixgbe: fix possible null buffer error
  tg3: fix VLAN tagging regression
  net: pxa168: Fix build errors by including interrupt.h
  netconsole: switch init_netconsole() to late_initcall
  gianfar: Fix overflow check and return value for gfar_get_cls_all()
  ppp_generic: fix multilink fragment MTU calculation (again)
  GRETH: avoid overwrite IP-stack's IP-frags checksum
  GRETH: RX/TX bytes were never increased
  ipv6: fix a possible double free
  b43: Fix beacon problem in ad-hoc mode
  Bluetooth: add support for 2011 mac mini
  Bluetooth: Add MacBookAir4,1 support
  Bluetooth: Fixed BT ST Channel reg order
  r8169: do not enable the TBI for anything but the original 8169.
  r8169: remove erroneous processing of always set bit.
  r8169: fix WOL setting for 8105 and 8111evl
  r8169: add MODULE_FIRMWARE for the firmware of 8111evl
  r8169: fix the reset setting for 8111evl
  ...

13 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Wed, 21 Sep 2011 20:20:21 +0000 (13:20 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

* 'for-linus' of git://git.kernel.dk/linux-block:
  floppy: use del_timer_sync() in init cleanup
  blk-cgroup: be able to remove the record of unplugged device
  block: Don't check QUEUE_FLAG_SAME_COMP in __blk_complete_request
  mm: Add comment explaining task state setting in bdi_forker_thread()
  mm: Cleanup clearing of BDI_pending bit in bdi_forker_thread()
  block: simplify force plug flush code a little bit
  block: change force plug flush call order
  block: Fix queue_flag update when rq_affinity goes from 2 to 1
  block: separate priority boosting from REQ_META
  block: remove READ_META and WRITE_META
  xen-blkback: fixed indentation and comments
  xen-blkback: Don't disconnect backend until state switched to XenbusStateClosed.

13 years agoinit: carefully handle loglevel option on kernel cmdline.
Alexander Sverdlin [Wed, 21 Sep 2011 07:51:40 +0000 (09:51 +0200)]
init: carefully handle loglevel option on kernel cmdline.

When a malformed loglevel value (for example "${abc}") is passed on the
kernel cmdline, the loglevel itself is being set to 0.

That then suppresses all following messages, including all the errors
and crashes caused by other malformed cmdline options.  This could make
debugging process quite tricky.

This patch leaves the previous value of loglevel if the new value is
incorrect and reports an error code in this case.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@sysgo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoteach /proc/$pid/numa_maps about transparent hugepages
Dave Hansen [Tue, 20 Sep 2011 22:19:41 +0000 (15:19 -0700)]
teach /proc/$pid/numa_maps about transparent hugepages

This is modeled after the smaps code.

It detects transparent hugepages and then does a single gather_stats()
for the page as a whole.  This has two benifits:
 1. It is more efficient since it does many pages in a single shot.
 2. It does not have to break down the huge page.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agobreak out numa_maps gather_pte_stats() checks
Dave Hansen [Tue, 20 Sep 2011 22:19:39 +0000 (15:19 -0700)]
break out numa_maps gather_pte_stats() checks

gather_pte_stats() does a number of checks on a target page
to see whether it should even be considered for statistics.
This breaks that code out in to a separate function so that
we can use it in the transparent hugepage case in the next
patch.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Christoph Lameter <cl@gentwo.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agomake /proc/$pid/numa_maps gather_stats() take variable page size
Dave Hansen [Tue, 20 Sep 2011 22:19:38 +0000 (15:19 -0700)]
make /proc/$pid/numa_maps gather_stats() take variable page size

We need to teach the numa_maps code about transparent huge pages.  The
first step is to teach gather_stats() that the pte it is dealing with
might represent more than one page.

Note that will we use this in a moment for transparent huge pages since
they have use a single pmd_t which _acts_ as a "surrogate" for a bunch
of smaller pte_t's.

I'm a _bit_ unhappy that this interface counts in hugetlbfs page sizes
for hugetlbfs pages and PAGE_SIZE for normal pages.  That means that to
figure out how many _bytes_ "dirty=1" means, you must first know the
hugetlbfs page size.  That's easier said than done especially if you
don't have visibility in to the mount.

But, that's probably a discussion for another day especially since it
would change behavior to fix it.  But, just in case anyone wonders why
this patch only passes a '1' in the hugetlb case...

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agomacmace, macsonic: cleanup
Finn Thain [Tue, 13 Sep 2011 07:30:25 +0000 (07:30 +0000)]
macmace, macsonic: cleanup

We check ether_type before registering the platform device in
arch/m68k/mac/config.c. Doing the same test again in the driver is
redundant so remove it.

Multiple probes should not happen since the conversion to platform devices,
so lose that test too.

Then macmace.c need not include macintosh.h, so remove that and irq.h and
include linux/interrupt.h explicitly.

Tested on PowerBook 520, Quadra 660av, LC 630.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'batman-adv/next' of git://git.open-mesh.org/linux-merge
David S. Miller [Wed, 21 Sep 2011 19:25:47 +0000 (15:25 -0400)]
Merge branch 'batman-adv/next' of git://git.open-mesh.org/linux-merge

13 years agoxfrm: Perform a replay check after return from async codepaths
Steffen Klassert [Tue, 20 Sep 2011 23:38:58 +0000 (23:38 +0000)]
xfrm: Perform a replay check after return from async codepaths

When asyncronous crypto algorithms are used, there might be many
packets that passed the xfrm replay check, but the replay advance
function is not called yet for these packets. So the replay check
function would accept a replay of all of these packets. Also the
system might crash if there are more packets in async processing
than the size of the anti replay window, because the replay advance
function would try to update the replay window beyond the bounds.

This pach adds a second replay check after resuming from the async
processing to fix these issues.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet/smsc911x: Correctly configure 16-bit register access from DT
Dave Martin [Tue, 13 Sep 2011 00:49:29 +0000 (00:49 +0000)]
net/smsc911x: Correctly configure 16-bit register access from DT

The SMSC911X_USE_16BIT needs to be set when using 16-bit register
access.  However, currently no flag is set if the device tree
doesn't specify 32-bit access, resulting in a BUG() and a non-
working driver when 16-bit register access is configured for
smsc911x in the DT.

This patch should set the SMSC911X_USE_16BIT flag in a manner
consistent with the documented DT bindings.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agofib:fix BUG_ON in fib_nl_newrule when add new fib rule
Gao feng [Sun, 11 Sep 2011 15:36:05 +0000 (15:36 +0000)]
fib:fix BUG_ON in fib_nl_newrule when add new fib rule

add new fib rule can cause BUG_ON happen
the reproduce shell is
ip rule add pref 38
ip rule add pref 38
ip rule add to 192.168.3.0/24 goto 38
ip rule del pref 38
ip rule add to 192.168.3.0/24 goto 38
ip rule add pref 38

then the BUG_ON will happen
del BUG_ON and use (ctarget == NULL) identify whether this rule is unresolved

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agofloppy: use del_timer_sync() in init cleanup
Carsten Emde [Wed, 21 Sep 2011 08:22:11 +0000 (10:22 +0200)]
floppy: use del_timer_sync() in init cleanup

When no floppy is found the module code can be released while a timer
function is pending or about to be executed.

CPU0                                  CPU1
      floppy_init()
timer_softirq()
   spin_lock_irq(&base->lock);
   detach_timer();
   spin_unlock_irq(&base->lock);
   -> Interrupt
del_timer();
        return -ENODEV;
                                      module_cleanup();
   <- EOI
   call_timer_fn();
   OOPS

Use del_timer_sync() to prevent this.

Signed-off-by: Carsten Emde <C.Emde@osadl.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
13 years agoblk-cgroup: be able to remove the record of unplugged device
Wanlong Gao [Wed, 21 Sep 2011 08:22:10 +0000 (10:22 +0200)]
blk-cgroup: be able to remove the record of unplugged device

The bug is we're not able to remove the device from blkio cgroup's
per-device control files if it gets unplugged.

To reproduce the bug:

  # mount -t cgroup -o blkio xxx /cgroup
  # cd /cgroup
  # echo "8:0 1000" > blkio.throttle.read_bps_device
  # unplug the device
  # cat blkio.throttle.read_bps_device
  8:0 1000
  # echo "8:0 0" > blkio.throttle.read_bps_device
  -bash: echo: write error: No such device

After patching, the device removal will succeed.

Thanks for the comments of Paul, Zefan, and Vivek.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <paul@paulmenage.org>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
13 years agocan/sja1000: driver for PEAK PCAN PCI/PCIe cards
Wolfgang Grandegger [Mon, 12 Sep 2011 21:16:06 +0000 (21:16 +0000)]
can/sja1000: driver for PEAK PCAN PCI/PCIe cards

This patch add the peak_pci driver for the PCAN PCI/PCIe cards (1, 2, 3
or 4 channels) from PEAK Systems (http://www.peak-system.com).

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoixgbe: fix possible null buffer error
Jesse Brandeburg [Tue, 20 Sep 2011 15:13:03 +0000 (15:13 +0000)]
ixgbe: fix possible null buffer error

It seems that at least one PPC machine would occasionally give a (valid) 0 as
the return value from dma_map, this caused the ixgbe code to not work
correctly.  A fix is pending in the PPC tree to not return 0 from dma map, but
we can also fix the driver to make sure we don't mess up in other arches as
well.

This patch is applicable to all current stable kernels.

Ref: https://bugzilla.redhat.com/show_bug.cgi?id=683611

Reported-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: stable@kernel.org
Tested-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotg3: fix VLAN tagging regression
Kasper Pedersen [Tue, 20 Sep 2011 12:41:17 +0000 (12:41 +0000)]
tg3: fix VLAN tagging regression

commit 92cd3a17ce9c719abb4c28dee3438e0c641f8de4
    tg3: Simplify tx bd assignments

broke VLAN tagging on outbound packets.
It ifdef'ed BCM_KERNEL_SUPPORTS_8021Q, but this
is not set anywhere. So vlan never gets set, and
all packets are sent with vlan=0.

v2: We can just remove the test. vlan_tx_tag_present
is valid regardless of whether the 802.1q module
is built.

Tested on BCM5721 rev 11.

Signed-off-by: Kasper Pedersen <kernel@kasperkp.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'fixes' of git://git.linaro.org/people/arnd/arm-soc
Linus Torvalds [Tue, 20 Sep 2011 21:23:16 +0000 (14:23 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/arnd/arm-soc

* 'fixes' of git://git.linaro.org/people/arnd/arm-soc:
  mach-integrator: fix VGA base regression
  arm/dt: Tegra: Update SDHCI nodes to match bindings
  ARM: EXYNOS4: fix incorrect pad configuration for keypad row lines
  ARM: SAMSUNG: fix to prevent declaring duplicated
  ARM: SAMSUNG: fix watchdog reset issue with clk_get()
  ARM: S3C64XX: Remove un-used code backlight code on SMDK6410
  ARM: EXYNOS4: restart clocksource while system resumes
  ARM: EXYNOS4: Fix routing timer interrupt to offline CPU
  ARM: EXYNOS4: Fix return type of local_timer_setup()
  ARM: EXYNOS4: Fix wrong pll type for vpll
  ARM: Dove: fix second SPI initialization call

13 years agoMerge branch 'for-linus' of git://github.com/chrismason/linux
Linus Torvalds [Tue, 20 Sep 2011 21:22:55 +0000 (14:22 -0700)]
Merge branch 'for-linus' of git://github.com/chrismason/linux

* 'for-linus' of git://github.com/chrismason/linux:
  Btrfs: reserve sufficient space for ioctl clone

13 years agostaging: zcache: fix cleancache crash
Seth Jennings [Tue, 20 Sep 2011 20:09:56 +0000 (13:09 -0700)]
staging: zcache: fix cleancache crash

After commit c5f5c4db3938 ("staging: zcache: fix crash on high memory
swap") cleancache crashes on the first successful get.  This was caused
by a remaining virt_to_page() call in zcache_pampd_get_data_and_free()
that only gets run in the cleancache path.

The patch converts the virt_to_page() to struct page casting like was
done for other instances in c5f5c4db3938.

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Tested-By: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agomach-integrator: fix VGA base regression
Linus Walleij [Sun, 4 Sep 2011 21:40:08 +0000 (23:40 +0200)]
mach-integrator: fix VGA base regression

The changes introduced in commit
cc22b4c18540e5e8bf55c7d124044f9317527d3c
"ARM: set vga memory base at run-time"

Makes the Integrator/AP freeze completely. I appears that
this is due to the VGA base address being assigned at PCI
init time, while this base is needed earlier than that.
Moving the initialization of the base address to the
.map_io function solves this problem.

Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
13 years agoarm/dt: Tegra: Update SDHCI nodes to match bindings
Stephen Warren [Tue, 20 Sep 2011 16:46:25 +0000 (10:46 -0600)]
arm/dt: Tegra: Update SDHCI nodes to match bindings

The bindings were recently updated to have separate properties for each
type of GPIO. Update the Device Tree source to match that.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
13 years agonet/phy: add IC+ IP101A and support APS.
Giuseppe CAVALLARO [Tue, 6 Sep 2011 20:14:50 +0000 (20:14 +0000)]
net/phy: add IC+ IP101A and support APS.

This patch adds the IC+ IP101A Single port 10/100 PHY
and supports the APS (i.e. power saving mode while link is down)
for both IP1001 and IP101A (where this mode is supported).

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: pxa168: Fix build errors by including interrupt.h
Tanmay Upadhyay [Mon, 5 Sep 2011 19:32:04 +0000 (19:32 +0000)]
net: pxa168: Fix build errors by including interrupt.h

Commit a6b7a407865aab9f849dd99a71072b7cd1175116 removed
linux/interrupt.h from netdevice.h. This fixes below build failure

drivers/net/pxa168_eth.c: In function 'pxa168_eth_collect_events':
drivers/net/pxa168_eth.c:866: error: 'IRQ_NONE' undeclared (first use in this function)
drivers/net/pxa168_eth.c:866: error: (Each undeclared identifier is reported only once
drivers/net/pxa168_eth.c:866: error: for each function it appears in.)
drivers/net/pxa168_eth.c: At top level:
drivers/net/pxa168_eth.c:913: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'pxa168_eth_int_handler'
drivers/net/pxa168_eth.c: In function 'pxa168_eth_open':
drivers/net/pxa168_eth.c:1133: error: implicit declaration of function 'request_irq'
drivers/net/pxa168_eth.c:1133: error: 'pxa168_eth_int_handler' undeclared (first use in this function)
drivers/net/pxa168_eth.c:1134: error: 'IRQF_DISABLED' undeclared (first use in this function)
drivers/net/pxa168_eth.c:1160: error: implicit declaration of function 'free_irq'

Signed-off-by: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonetconsole: switch init_netconsole() to late_initcall
Lin Ming [Tue, 20 Sep 2011 19:45:07 +0000 (15:45 -0400)]
netconsole: switch init_netconsole() to late_initcall

Commit 88491d8(drivers/net: Kconfig & Makefile cleanup) causes a
regression that netconsole does not work if netconsole and network
device driver are build into kernel, because netconsole is linked
before network device driver.

Andrew Morton suggested to fix this with initcall ordering.
Fixes it by switching init_netconsole() to late_initcall.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agogianfar: Fix overflow check and return value for gfar_get_cls_all()
Ben Hutchings [Tue, 6 Sep 2011 12:44:25 +0000 (12:44 +0000)]
gianfar: Fix overflow check and return value for gfar_get_cls_all()

This function may currently fill one entry beyond the end of the
array it is given.  It also doesn't return an error code in case
it does detect overflow.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoppp_generic: fix multilink fragment MTU calculation (again)
Henry Wong [Sun, 18 Sep 2011 13:41:49 +0000 (13:41 +0000)]
ppp_generic: fix multilink fragment MTU calculation (again)

When using MLPPP, the maximum size of a fragment is incorrectly
calculated with an offset of -2.
This patch reverses the changes in the patch found here:
http://marc.info/?l=linux-netdev&m=123541324010539&w=2

The value of hdrlen includes the size of both the 2-byte PPP protocol
field and the 2- or 4-byte multilink header (2+4=6 for long sequence
numbers, 2+2=4 for short sequence numbers). Section 2 of RFC1661 says
that the MRU that is negotiated (i.e., the MTU of the sending system)
includes only the PPP payload but not the protocol field, thus the
correct MTU should be the link's MTU minus the multilink header (mtu -
(hdrlen-2)).

The incorrect calculation causes Linux to fragment packets to a size two
bytes smaller than the allowed MTU. While not technically illegal, this
behaviour confounds MRU-tuning to avoid PPP-layer fragmentation.

Signed-off-by: Henry Wong <henry@stuffedcow.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoGRETH: avoid overwrite IP-stack's IP-frags checksum
Daniel Hellstrom [Fri, 9 Sep 2011 05:17:54 +0000 (05:17 +0000)]
GRETH: avoid overwrite IP-stack's IP-frags checksum

The GRETH GBIT core does not do checksum offloading for IP
segmentation. This patch adds a check in the xmit function to
determine if the stack has calculated the checksum for us.

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoGRETH: RX/TX bytes were never increased
Daniel Hellstrom [Thu, 8 Sep 2011 03:14:35 +0000 (03:14 +0000)]
GRETH: RX/TX bytes were never increased

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoipv6: fix a possible double free
Roy Li [Tue, 20 Sep 2011 19:10:16 +0000 (15:10 -0400)]
ipv6: fix a possible double free

When calling snmp6_alloc_dev fails, the snmp6 relevant memory
are freed by snmp6_alloc_dev. Calling in6_dev_finish_destroy
will free these memory twice.

Double free will lead that undefined behavior occurs.

Signed-off-by: Roy Li <rongqing.li@windriver.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonetxen: Add pcie workaround
Rajesh Borundia [Mon, 19 Sep 2011 08:49:52 +0000 (08:49 +0000)]
netxen: Add pcie workaround

o A performance drop was seen with firmware loaded
from flash. This workaround fixes it.
o Updated driver version to 4.0.77

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonetxen: Fix vhdr_len in case of non vlan packets.
Rajesh Borundia [Mon, 19 Sep 2011 08:49:51 +0000 (08:49 +0000)]
netxen: Fix vhdr_len in case of non vlan packets.

o Set vlan header length to zero.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoip6_tunnel: add optional fwmark inherit
Eric Dumazet [Tue, 20 Sep 2011 18:50:00 +0000 (14:50 -0400)]
ip6_tunnel: add optional fwmark inherit

Add IP6_TNL_F_USE_ORIG_FWMARK to ip6_tunnel, so that ip6_tnl_xmit2()
makes a route lookup taking into account skb->fwmark and doesnt cache
lookup result.

This permits more flexibility in policies and firewall setups.

To setup such a tunnel, "fwmark inherit" option should be added to "ip
-f inet6 tunnel" command.

Reported-by: Anders Franzen <Anders.Franzen@ericsson.com>
CC: Hans Schillström <hans.schillstrom@ericsson.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'btrfs-3.0' into for-linus
Chris Mason [Tue, 20 Sep 2011 18:49:29 +0000 (14:49 -0400)]
Merge branch 'btrfs-3.0' into for-linus

13 years agoBtrfs: reserve sufficient space for ioctl clone
Sage Weil [Tue, 20 Sep 2011 18:48:51 +0000 (14:48 -0400)]
Btrfs: reserve sufficient space for ioctl clone

Fix a crash/BUG_ON in the clone ioctl due to insufficient reservation. We
need to reserve space for:

 - adjusting the old extent (possibly splitting it)
 - adding the new extent
 - updating the inode

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoMerge branch 'davem.r8169.fixes' of git://violet.fr.zoreil.com/romieu/linux
David S. Miller [Tue, 20 Sep 2011 18:42:45 +0000 (14:42 -0400)]
Merge branch 'davem.r8169.fixes' of git://violet.fr.zoreil.com/romieu/linux

13 years agoMerge branch 'tipc-Sep17-2011' of git://openlinux.windriver.com/people/paulg/net...
David S. Miller [Tue, 20 Sep 2011 18:39:04 +0000 (14:39 -0400)]
Merge branch 'tipc-Sep17-2011' of git://openlinux.windriver.com/people/paulg/net-next

13 years agomacvtap: fix the uninitialized var using in macvtap_alloc_skb()
Jason Wang [Sun, 18 Sep 2011 23:48:31 +0000 (23:48 +0000)]
macvtap: fix the uninitialized var using in macvtap_alloc_skb()

Commit d1b08284 use new frag API but would leave f to be used
uninitialized, this patch fix it.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge git://github.com/Jkirsher/net-next
David S. Miller [Tue, 20 Sep 2011 18:34:54 +0000 (14:34 -0400)]
Merge git://github.com/Jkirsher/net-next

13 years agoMerge git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Tue, 20 Sep 2011 17:28:52 +0000 (10:28 -0700)]
Merge git://git.samba.org/sfrench/cifs-2.6

* git://git.samba.org/sfrench/cifs-2.6:
  cifs: Fix broken sec=ntlmv2/i sec option (try #2)
  Fix the conflict between rwpidforward and rw mount options
  CIFS: Fix ERR_PTR dereference in cifs_get_root
  cifs: fix possible memory corruption in CIFSFindNext