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534994 commits

Author SHA1 Message Date
Daniel Borkmann
4962fa10f3 test_bpf: assign type to native eBPF test cases
As JITs start to perform optimizations whether to clear A and X on eBPF
programs in the prologue, we should actually assign a program type to the
native eBPF test cases. It doesn't really matter which program type, as
these instructions don't go through the verifier, but it needs to be a
type != BPF_PROG_TYPE_UNSPEC. This reflects eBPF programs loaded via bpf(2)
system call (!= type unspec) vs. classic BPF to eBPF migrations (== type
unspec).

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 11:13:20 -07:00
Linus Torvalds
dbe08116b8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
 "The main change is support for keyboards and touchpads found in 2015
  editions of Macbooks"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Revert "Input: zforce - don't overwrite the stack"
  Input: bcm5974 - add support for the 2015 Macbook Pro
  HID: apple: Add support for the 2015 Macbook Pro
  Input: bcm5974 - prepare for a new trackpad generation
  Input: synaptics - dump ext10 capabilities as well
2015-07-30 11:03:04 -07:00
Yuval Mintz
ce7fa78ce1 bnx2x: Fix compilation when CONFIG_BNX2X_SRIOV is not set
Commit 05cc5a39dd ("bnx2x: add vlan filtering offload") has broken
compilation when CONFIG_BNX2X_SRIOV is not set.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 09:52:18 -07:00
Linus Torvalds
0a552051a4 Two patches headed for -stable.
nct7802: Fix integer overflow seen when writing voltage limits
 nct7904: Rename pwm attributes to match hwmon ABI
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Merge tag 'hwmon-for-linus-v4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Two patches headed for -stable.

  nct7802: Fix integer overflow seen when writing voltage limits
  nct7904: Rename pwm attributes to match hwmon ABI"

* tag 'hwmon-for-linus-v4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct7802) Fix integer overflow seen when writing voltage limits
  hwmon: (nct7904) Rename pwm attributes to match hwmon ABI
2015-07-30 08:04:19 -07:00
Chris Wilson
5eb3e5a5e1 drm/i915: Declare the swizzling unknown for L-shaped configurations
The old style of memory interleaving swizzled upto the end of the
first even bank of memory, and then used the remainder as unswizzled on
the unpaired bank - i.e. swizzling is not constant for all memory. This
causes problems when we try to migrate memory and so the kernel prevents
migration at all when we detect L-shaped inconsistent swizzling.
However, this issue also extends to userspace who try to manually detile
into memory as the swizzling for an individual page is unknown (it
depends on its physical address only known to the kernel), userspace
cannot correctly swizzle.

Note that this is a new attempt for the previously merged one,
reverted in

commit d82c0ba6e3
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Jul 14 12:29:27 2015 +0200

    Revert "drm/i915: Declare the swizzling unknown for L-shaped configurations"

This is cc: stable since we need it to fix up troubles with wc cpu
mmaps that userspace recently started to use widely.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91105
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
[danvet: Add note about previous (failed attempt).]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-30 16:51:20 +02:00
Chris Wilson
d0e30adc42 drm/i915: Mark PIN_USER binding as GLOBAL_BIND without the aliasing ppgtt
If the device does not support the aliasing ppgtt, we must translate
user bind requests (PIN_USER) from LOCAL_BIND to a GLOBAL_BIND. However,
since this is device specific we cannot do this conveniently in the
upper layers and so must manage the vma->bound flags in the backend.

Partial revert of commit 75d04a3773 [4.2-rc1]
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date:   Tue Apr 28 17:56:17 2015 +0300

    drm/i915/gtt: Allocate va range only if vma is not bound

Note this was spotted by Daniel originally, but we dropped the ball in
getting the fix in before the bug going wild. Sorry all.

Reported-by: Vincent Legoll vincent.legoll@gmail.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91133
References: https://bugs.freedesktop.org/show_bug.cgi?id=90224
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-30 16:45:30 +02:00
Alexander Aring
5857d1dbae Bluetooth: 6lowpan: Fix possible race
This patch fix a possible race after calling register_netdev. After
calling netdev_register it could be possible that netdev_ops callbacks
use the uninitialized private data of lowpan_dev. By moving the
initialization of this data before netdev_register we can be sure that
initialized private data is be used after netdev_register.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 14:11:36 +02:00
Lennert Buytenhek
c22ff7b4e7 mac802154: Fix memory corruption with global deferred transmit state.
When transmitting a packet via a mac802154 driver that can sleep in
its transmit function, mac802154 defers the call to the driver's
transmit function to a per-device workqueue.

However, mac802154 uses a single global work_struct for this, which
means that if you have more than one registered mac802154 interface
in the system, and you transmit on more than one of them at the same
time, you'll very easily cause memory corruption.

This patch moves the deferred transmit processing state from global
variables to struct ieee802154_local, and this seems to fix the memory
corruption issue.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 14:08:55 +02:00
Alexander Aring
8b44f0dd2f at86rf230: remove hrtimer on 1 usec delay
According Documentation/timers/timers-howto.txt the usually case for
setting up a hrtimer takes > ~10us. So we should use udelay in this
case so we are sure that the state change was done, before doing the
state change assert.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 14:02:21 +02:00
Christophe JAILLET
54c9ee3992 Bluetooth: cmtp: Do not use list_for_each_safe when not needed
There is no need to use the safe version of list_for_each here.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 13:50:35 +02:00
Bernhard Thaler
f4b3eee727 netfilter: bridge: do not initialize statics to 0 or NULL
Fix checkpatch.pl "ERROR: do not initialise statics to 0 or NULL" for
all statics explicitly initialized to 0.

Signed-off-by: Bernhard Thaler <bernhard.thaler@wvnet.at>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-07-30 13:46:04 +02:00
Daniel Drake
d63b282645 Bluetooth: btusb: match generic class code in interface descriptor
btusb currently has a generic match on USB device descriptors:
        { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },

However, http://www.usb.org/developers/defined_class states:

  Base Class E0h (Wireless Controller)
  This base class is defined for devices that are Wireless controllers.
  Values not shown in the table below are reserved. These class codes are
  to be used in Interface Descriptors, with the exception of the Bluetooth
  class code which can also be used in a Device Descriptor.

Add a match on the interface descriptors accordingly.

This fixes compatibility with the RTL8723AU device shown below.
This device conforms to the USB Interface Association Descriptor
specification, which requires the device to have class ef/02/01.
The extra IAD descriptor then specifies that interfaces 0 and 1
belong to the same function/driver, which is true. Provided that
the Bluetooth device class spec accepts use of the IAD, I imagine that
technically, all btusb devices should be configured like this.

T:  Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#=  3 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0bda ProdID=0724 Rev= 2.00
S:  Manufacturer=Realtek
S:  Product=802.11n WLAN Adapter
S:  SerialNumber=00e04c000001
C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=500mA
A:  FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8723au
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=87(I) Atr=03(Int.) MxPS=  64 Ivl=500us

Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 13:42:26 +02:00
Florian Westphal
72b1e5e4ca netfilter: bridge: reduce nf_bridge_info to 32 bytes again
We can use union for most of the temporary cruft (original ipv4/ipv6
address, source mac, physoutdev) since they're used during different
stages of br netfilter traversal.

Also get rid of the last two ->mask users.

Shrinks struct from 48 to 32 on 64bit arch.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-07-30 13:37:42 +02:00
Arron Wang
df9b89c7e4 Bluetooth: Move create/accept phy link completed callback to amp.c
To avoid amp module hooks from hci_event.c

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 13:37:22 +02:00
Arron Wang
b3d3914006 Bluetooth: Move amp assoc read/write completed callback to amp.c
To avoid amp module hooks from hci_event.c

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 13:37:22 +02:00
Arron Wang
839278823c Bluetooth: Move get info completed callback to a2mp.c
To avoid a2mp module hooks from hci_event.c and send
getinfo response operation only required by a2mp module,
we can move this callback to a2mp.c

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 13:37:22 +02:00
Arron Wang
a77a6a14e5 Bluetooth: Move high speed specific event under BT_HS option
Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 13:31:59 +02:00
Arron Wang
244bc37759 Bluetooth: Add BT_HS config option
Move A2MP Module under BT_HS config option and allow
the user have flexible option to choose the feature only
they need

a2mp_discover_amp() & a2mp_channel_create() are a2mp module
entry point for master and slave, and this is dynamic
invoked depends on the userspace or remote request, then
we defined their implementation depends on BT_HS config

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 13:31:59 +02:00
Frederic Danis
4a546ec364 Bluetooth: btbcm: Add BCM4330B1 UART device
Add "waiting for configuration" address.
Add lmp_subver and firmware name for BCM4330B1 controller.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-07-30 13:18:08 +02:00
Michal Kubeček
d7ee351904 netfilter: nf_ct_sctp: minimal multihoming support
Currently nf_conntrack_proto_sctp module handles only packets between
primary addresses used to establish the connection. Any packets between
secondary addresses are classified as invalid so that usual firewall
configurations drop them. Allowing HEARTBEAT and HEARTBEAT-ACK chunks to
establish a new conntrack would allow traffic between secondary
addresses to pass through. A more sophisticated solution based on the
addresses advertised in the initial handshake (and possibly also later
dynamic address addition and removal) would be much harder to implement.
Moreover, in general we cannot assume to always see the initial
handshake as it can be routed through a different path.

The patch adds two new conntrack states:

  SCTP_CONNTRACK_HEARTBEAT_SENT  - a HEARTBEAT chunk seen but not acked
  SCTP_CONNTRACK_HEARTBEAT_ACKED - a HEARTBEAT acked by HEARTBEAT-ACK

State transition rules:

- HEARTBEAT_SENT responds to usual chunks the same way as NONE (so that
  the behaviour changes as little as possible)
- HEARTBEAT_ACKED responds to usual chunks the same way as ESTABLISHED
  does, except the resulting state is HEARTBEAT_ACKED rather than
  ESTABLISHED
- previously existing states except NONE are preserved when HEARTBEAT or
  HEARTBEAT-ACK is seen
- NONE (in the initial direction) changes to HEARTBEAT_SENT on HEARTBEAT
  and to CLOSED on HEARTBEAT-ACK
- HEARTBEAT_SENT changes to HEARTBEAT_ACKED on HEARTBEAT-ACK in the
  reply direction
- HEARTBEAT_SENT and HEARTBEAT_ACKED are preserved on HEARTBEAT and
  HEARTBEAT-ACK otherwise

Normally, vtag is set from the INIT chunk for the reply direction and
from the INIT-ACK chunk for the originating direction (i.e. each of
these defines vtag value for the opposite direction). For secondary
conntracks, we can't rely on seeing INIT/INIT-ACK and even if we have
seen them, we would need to connect two different conntracks. Therefore
simplified logic is applied: vtag of first packet in each direction
(HEARTBEAT in the originating and HEARTBEAT-ACK in reply direction) is
saved and all following packets in that direction are compared with this
saved value. While INIT and INIT-ACK define vtag for the opposite
direction, vtags extracted from HEARTBEAT and HEARTBEAT-ACK are always
for their direction.

Default timeout values for new states are

  HEARTBEAT_SENT: 30 seconds (default hb_interval)
  HEARTBEAT_ACKED: 210 seconds (hb_interval * path_max_retry + max_rto)

(We cannot expect to see the shutdown sequence so that, unlike
ESTABLISHED, the HEARTBEAT_ACKED timeout shouldn't be too long.)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-07-30 12:59:25 +02:00
Joerg Roedel
5271782835 iommu/amd: Set global dma_ops if swiotlb is disabled
Some AMD systems also have non-PCI devices which can do DMA.
Those can't be handled by the AMD IOMMU, as the hardware can
only handle PCI. These devices would end up with no dma_ops,
as neither the per-device nor the global dma_ops will get
set. SWIOTLB provides global dma_ops when it is active, so
make sure there are global dma_ops too when swiotlb is
disabled.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-07-30 10:28:48 +02:00
Joerg Roedel
3230232457 iommu/amd: Use swiotlb in passthrough mode
In passthrough mode (iommu=pt) all devices are identity
mapped. If a device does not support 64bit DMA it might
still need remapping. Make sure swiotlb is initialized to
provide this remapping.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-07-30 10:28:48 +02:00
Joerg Roedel
02ca20212f iommu/amd: Allow non-IOMMUv2 devices in IOMMUv2 domains
Since devices with IOMMUv2 functionality might be in the
same group as devices without it, allow those devices in
IOMMUv2 domains too.
Otherwise attaching the group with the IOMMUv2 device to the
domain will fail.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-07-30 10:28:48 +02:00
Joerg Roedel
1e6a7b04c0 iommu/amd: Use iommu core for passthrough mode
Remove the AMD IOMMU driver implementation for passthrough
mode and rely on the new iommu core features for that.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-07-30 10:28:48 +02:00
Joerg Roedel
55c99a4dc5 iommu/amd: Use iommu_attach_group()
Since the conversion to default domains the
iommu_attach_device function only works for devices with
their own group. But this isn't always true for current
IOMMUv2 capable devices, so use iommu_attach_group instead.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-07-30 10:28:48 +02:00
David S. Miller
cfcbe858f2 Merge branch 'mlxsw'
Jiri Pirko says:

====================
Introduce Mellanox Technologies Switch ASICs switchdev drivers

This patchset introduces Mellanox Technologies Switch driver infrastructure
and support for SwitchX-2 ASIC.

The driver is divided into 3 logical parts:
1) Bus - implements switch bus interface. Currently only PCI bus is
   implemented, but more buses will be added in the future. Namely I2C
   and SGMII.
   (patch #2)
2) Driver - implemements of ASIC-specific functions.
   Currently SwitchX-2 ASIC is supported, but a plan exists to introduce
   support for Spectrum ASIC in the near future.
   (patch #4)
3) Core - infrastructure that glues buses and drivers together.
   It implements register access logic (EMADs) and takes care of RX traps
   and events.
   (patch #1 and #3)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 00:05:00 -07:00
Jiri Pirko
31557f0f97 mlxsw: Introduce Mellanox SwitchX-2 ASIC support
Benefit from the previously introduced Mellanox Switch infrastructure and
add driver for SwitchX-2 ASIC. Note that this driver is very simple now.
It implements bare minimum for getting device to work on slow-path.
Fast-path offload functionality is going to be added soon.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Elad Raz <eladr@mellanox.com>
Reviewed-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 00:05:00 -07:00
Ido Schimmel
4ec14b7634 mlxsw: Add interface to access registers and process events
Ethernet Management Datagrams (EMADs) are Ethernet packets sent between
the host and the device in order to configure the available device registers.
Another use case is notifications sent from the device to the host,
letting it know about certain events, such as port up / down.

Add the ability to construct EMADs with provisions to construct and
parse the registers' payloads. Implement EMAD transaction layer
which is responsible for the reliable transmission of EMADs. Also, add
an infrastructure used by the switch driver to register for particular
events generated by the device.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Elad Raz <eladr@mellanox.com>
Reviewed-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 00:05:00 -07:00
Jiri Pirko
eda6500a98 mlxsw: Add PCI bus implementation
Add PCI bus implementation for Mellanox Technologies Switch ASICs. This
includes firmware initialization, async queues manipulation and command
interface implementation.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Elad Raz <eladr@mellanox.com>
Reviewed-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 00:04:59 -07:00
Jiri Pirko
93c1edb27f mlxsw: Introduce Mellanox switch driver core
Add core components of Mellanox switch driver infrastructure.
Core infrastructure is designed so that it can be used by multiple
bus drivers (PCI now, I2C and SGMII are planned to be implemented
in the future). Multiple switch kind drivers can be registered as well.
This core serves as a glue between buses and drivers.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Elad Raz <eladr@mellanox.com>
Reviewed-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 00:04:59 -07:00
Shahed Shaikh
15f1bb1f1e qlcnic: Fix corruption while copying
Use proper typecasting while performing byte-by-byte copy

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:57:26 -07:00
Daniel Borkmann
f4eaed28c7 act_bpf: fix memory leaks when replacing bpf programs
We currently trigger multiple memory leaks when replacing bpf
actions, besides others:

  comm "tc", pid 1909, jiffies 4294851310 (age 1602.796s)
  hex dump (first 32 bytes):
    01 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00  ................
    18 b0 98 6d 00 88 ff ff 00 00 00 00 00 00 00 00  ...m............
  backtrace:
    [<ffffffff817e623e>] kmemleak_alloc+0x4e/0xb0
    [<ffffffff8120a22d>] __vmalloc_node_range+0x1bd/0x2c0
    [<ffffffff8120a37a>] __vmalloc+0x4a/0x50
    [<ffffffff811a8d0a>] bpf_prog_alloc+0x3a/0xa0
    [<ffffffff816c0684>] bpf_prog_create+0x44/0xa0
    [<ffffffffa09ba4eb>] tcf_bpf_init+0x28b/0x3c0 [act_bpf]
    [<ffffffff816d7001>] tcf_action_init_1+0x191/0x1b0
    [<ffffffff816d70a2>] tcf_action_init+0x82/0xf0
    [<ffffffff816d4d12>] tcf_exts_validate+0xb2/0xc0
    [<ffffffffa09b5838>] cls_bpf_modify_existing+0x98/0x340 [cls_bpf]
    [<ffffffffa09b5cd6>] cls_bpf_change+0x1a6/0x274 [cls_bpf]
    [<ffffffff816d56e5>] tc_ctl_tfilter+0x335/0x910
    [<ffffffff816b9145>] rtnetlink_rcv_msg+0x95/0x240
    [<ffffffff816df34f>] netlink_rcv_skb+0xaf/0xc0
    [<ffffffff816b909e>] rtnetlink_rcv+0x2e/0x40
    [<ffffffff816deaaf>] netlink_unicast+0xef/0x1b0

Issue is that the old content from tcf_bpf is allocated and needs
to be released when we replace it. We seem to do that since the
beginning of act_bpf on the filter and insns, later on the name as
well.

Example test case, after patch:

  # FOO="1,6 0 0 4294967295,"
  # BAR="1,6 0 0 4294967294,"
  # tc actions add action bpf bytecode "$FOO" index 2
  # tc actions show action bpf
   action order 0: bpf bytecode '1,6 0 0 4294967295' default-action pipe
   index 2 ref 1 bind 0
  # tc actions replace action bpf bytecode "$BAR" index 2
  # tc actions show action bpf
   action order 0: bpf bytecode '1,6 0 0 4294967294' default-action pipe
   index 2 ref 1 bind 0
  # tc actions replace action bpf bytecode "$FOO" index 2
  # tc actions show action bpf
   action order 0: bpf bytecode '1,6 0 0 4294967295' default-action pipe
   index 2 ref 1 bind 0
  # tc actions del action bpf index 2
  [...]
  # echo "scan" > /sys/kernel/debug/kmemleak
  # cat /sys/kernel/debug/kmemleak | grep "comm \"tc\"" | wc -l
  0

Fixes: d23b8ad8ab ("tc: add BPF based action")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:56:22 -07:00
Sriharsha Basavapatna
8670f2a5ac be2net: Support vxlan offload stats in the driver
This patch adds vxlan offload specific counters to ethtool stats. We
provide tx/rx queue counters to show the number of vxlan offload pkts
sent/received.

Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:54:05 -07:00
David S. Miller
f68b1231c4 Merge branch 'thunderx-fixes'
Aleksey Makarov says:

====================
net: thunderx: Misc fixes

Miscellaneous fixes for the ThunderX VNIC driver

All the patches can be applied individually.
It's ok to drop some if the maintainer feels uncomfortable
with applying for 4.2.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:32 -07:00
Thanneeru Srinivasulu
60f83c8987 net: thunderx: Fix for crash while BGX teardown
Cortina phy does not have kernel driver and we don't attach
device with phy layer for intefaces like XFI, XLAUI etc,
Hence check for interface type before calling disconnect.

Signed-off-by: Thanneeru Srinivasulu <tsrinivasulu@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:32 -07:00
Sunil Goutham
4adf435114 net: thunderx: Add PCI driver shutdown routine
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:32 -07:00
Sunil Goutham
b49087dd0f net: thunderx: Fix crash when changing rss with mutliple traffic flows
This fixes a crash when changing rss with multiple traffic flows.

While interface teardown, disable tx queues after all NAPI threads
are done. If done otherwise tx queues might be woken up inside NAPI
if any CQE_TX are processed.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:32 -07:00
Sunil Goutham
3d7a8aaad8 net: thunderx: Set watchdog timeout value
If a txq (SQ) remains in stopped state after this timeout its
considered as stuck and interface is reinited.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:32 -07:00
Sunil Goutham
74840b83bd net: thunderx: Wakeup TXQ only if CQE_TX are processed
Previously TXQ is wakedup whenever napi is executed
and irrespective of if any CQE_TX are processed or not.
Added 'txq_stop' and 'txq_wake' counters to aid in debugging
if there are any future issues.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:31 -07:00
Sunil Goutham
f8ce9666fa net: thunderx: Suppress alloc_pages() failure warnings
Suppressing standard alloc_pages() warnings. Some kernel configs limit
alloc size and the network driver may fail. Do not drop a kernel
warning in this case, instead just drop a oneliner that the network
driver could not be loaded since the buffer could not be allocated.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:31 -07:00
Sunil Goutham
2cb468e01e net: thunderx: Fix TSO packet statistic
Fixing TSO packages not being counted.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:31 -07:00
Sunil Goutham
c62cd3c451 net: thunderx: Fix memory leak when changing queue count
Fix for memory leak when changing queue/channel count via ethtool

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:31 -07:00
Sunil Goutham
32c1b965f4 net: thunderx: Fix RQ_DROP miscalculation
With earlier configured value sufficient number of CQEs are not
being reserved for transmitted packets. Hence under heavy incoming
traffic load, receive notifications will take away most of the CQ
thus transmit notifications will be lost resulting in tx skbs not
being freed.

Finally SQ will be full and it will be stopped, watchdog timer
will kick in. After this fix receive notifications will not take
morethan half of CQ reserving the rest for transmit notifications.

Also changed CQ & SQ sizes from 16k to 4k.
This is also due to the receive notifications taking first half of
CQ under heavy load and time taken by NAPI to clear transmit notifications
will increase with higher queue sizes. Again results in SQ being stopped.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:31 -07:00
Sunil Goutham
143ceb0b8a net: thunderx: Fix memory leak while tearing down interface
Fixed 'tso_hdrs' memory not being freed properly.
Also fixed SQ skbuff maintenance issues.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:30 -07:00
Sunil Goutham
4b561c17d9 net: thunderx: Fix data integrity issues with LDWB
Switching back to LDD transactions from LDWB.

While transmitting packets out with LDWB transactions
data integrity issues are seen very frequently.
hence switching back to LDD.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:52:30 -07:00
Yuval Mintz
05cc5a39dd bnx2x: add vlan filtering offload
Current driver always uses vlan-promisc mode, i.e., it receives both
tagged and untagged traffic and lets the network stack drop packets
tagged with unrequested vlan tags.

This patch implements vlan-filtering offload in the driver -
Unless explicitly configured to promisc mode, only untagged packets or
packets tagged with requested vlans would reach the Rx flow.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:24:45 -07:00
David S. Miller
e82a08b058 Merge branch 'mlx5e-next'
Amir Vadai says:

====================
net/mlx5e: Driver update 29-Jul-2015

This patchset contain bug fixes and code cleaning patches to the ConnectX-4
Ethernet driver.

Patchset was applied and tested over commit 8c1a91f ("Merge branch
'mlx4-802.1ad-accel'")
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:04:47 -07:00
Achiad Shochat
98e81b0ad6 net/mlx5e: Remove the mlx5e_update_priv_params() function
It was used to update netdev priv parameters that require stopping
and re-opening the device in a generic way - it got the new
parameters and did: ndo_stop(), copy new parameters into current
parameters, ndo_open().

We chose to remove it for two reasons:
1) It requires additional instance of struct mlx5e_params on the
   stack and looking forward we expect this struct to grow.
2) Sometimes we want to do additional operations (besides
   just updating the priv parameters) while the netdev is stopped.
   For example, updating netdev->mtu @mlx5e_change_mtu() should
   be done while the netdev is stopped (done in this commit).

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:04:47 -07:00
Achiad Shochat
1fc22739a8 net/mlx5e: Introduce create/destroy RSS indir table access functions
Introduce access functions to create/destroy RSS indrection table
and use it in the Ethernet driver.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:04:47 -07:00
Achiad Shochat
1f2a30037b net/mlx5e: Do not use netdev_err() before the netdev is registered
Since it is un-named at this time.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 23:04:46 -07:00