Daniel Borkmann [Thu, 30 Jul 2015 10:42:49 +0000 (12:42 +0200)]
bpf: also show process name/pid in bpf_jit_dump
It can be useful for testing to see the actual process/pid who is loading
a given filter. I was running some BPF test program and noticed unusual
filter loads from time to time, triggered by some other application in the
background. bpf_jit_disasm is still working after this change.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Thu, 30 Jul 2015 10:42:48 +0000 (12:42 +0200)]
bpf, x86/sparc: show actual number of passes in bpf_jit_dump
When bpf_jit_compile() got split into two functions via commit f3c2af7ba17a ("net: filter: x86: split bpf_jit_compile()"), bpf_jit_dump()
was changed to always show 0 as number of compiler passes. Change it to
dump the actual number. Also on sparc, we count passes starting from 0,
so add 1 for the debug dump as well.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Thu, 30 Jul 2015 10:42:47 +0000 (12:42 +0200)]
bpf: provide helper that indicates eBPF was migrated
During recent discussions we had with Michael, we found that it would
be useful to have an indicator that tells the JIT that an eBPF program
had been migrated from classic instructions into eBPF instructions, as
only in that case A and X need to be cleared in the prologue. Such eBPF
programs do not set a particular type, but all have BPF_PROG_TYPE_UNSPEC.
Thus, introduce a small helper for cde66c2d88da ("s390/bpf: Only clear
A and X for converted BPF programs") and possibly others in future.
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>
Daniel Borkmann [Thu, 30 Jul 2015 10:42:46 +0000 (12:42 +0200)]
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>
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
bnx2x: Fix compilation when CONFIG_BNX2X_SRIOV is not set
Commit 05cc5a39ddb7 ("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>
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
Chris Wilson [Sun, 28 Jun 2015 08:19:26 +0000 (09:19 +0100)]
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
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>
Chris Wilson [Wed, 29 Jul 2015 19:02:48 +0000 (20:02 +0100)]
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 75d04a3773ecee617847de963ae4195d6aa74c28 [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>
Alexander Aring [Thu, 30 Jul 2015 07:40:53 +0000 (09:40 +0200)]
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>
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.
Alexander Aring [Thu, 30 Jul 2015 10:13:29 +0000 (12:13 +0200)]
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>
Daniel Drake [Fri, 17 Jul 2015 17:12:25 +0000 (11:12 -0600)]
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.
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>
Arron Wang [Fri, 24 Jul 2015 09:12:55 +0000 (17:12 +0800)]
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>
Michal Kubeček [Fri, 17 Jul 2015 14:17:56 +0000 (16:17 +0200)]
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.
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.
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.
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.
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.
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>
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>
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>
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>
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>
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: d23b8ad8ab23 ("tc: add BPF based action") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
net/mlx5e: Remove redundant assignment of sq->user_index
It is not needed by the mlx5 Eth driver since it has a CQ per RQ/SQ.
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>
net/mlx5e: Remove redundant field mlx5e_priv->num_tc
This field already exists under the mlx5e_params struct
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>
net/mlx5e: Use hard-coded 4K page size for RQ/SQ/CQ
The page size of the device's RQ/SQ/CQ objects is defined in 4K
units regardless of the system pages size.
Thus using the Linux's PAGE_SHIFT macro yields wrong device
configuration in systems where PAGE_SHIFT!=12.
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>
net/mlx5_core: Check the return value of mlx5_command_exec()
mlx5_cmd_exec() might fail - need to check return value.
Signed-off-by: Haggai Abramovsky <hagaya@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf [Wed, 29 Jul 2015 11:52:06 +0000 (13:52 +0200)]
openvswitch: Re-add CONFIG_OPENVSWITCH_VXLAN
This readds the config option CONFIG_OPENVSWITCH_VXLAN to avoid a
hard dependency of OVS on VXLAN. It moves the VXLAN config compat
code to vport-vxlan.c and allows compliation as a module.
Fixes: 614732eaa12d ("openvswitch: Use regular VXLAN net_device device") Fixes: 2661371ace96 ("openvswitch: fix compilation when vxlan is a module") Cc: Pravin B Shelar <pshelar@nicira.com> Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 29 Jul 2015 10:01:41 +0000 (12:01 +0200)]
ipv6: flush nd cache on IFF_NOARP change
This patch is the IPv6 equivalent of commit 6c8b4e3ff81b ("arp: flush arp cache on IFF_NOARP change")
Without it, we keep buggy neighbours in the cache, with destination
MAC address equal to our own MAC address.
Tested:
tcpdump -i eth0 -s 0 ip6 -n -e &
ip link set dev eth0 arp off
ping6 remote // sends buggy frames
ip link set dev eth0 arp on
ping6 remote // should work once kernel is patched
Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Mario Fanelli <mariofanelli@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Field pktgen_dev.allocated_skbs had been written to, but never read
from. The number of allocated skbs can be deduced anyway, from the total
number of sent packets and the 'clone_skb' param.
Signed-off-by: Bogdan Hamciuc <bogdan.hamciuc@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf [Wed, 29 Jul 2015 07:45:40 +0000 (09:45 +0200)]
lwtunnel: Make lwtun_encaps[] static
Any external user should use the registration API instead of
accessing this directly.
Cc: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Scott Wood [Wed, 29 Jul 2015 13:13:06 +0000 (16:13 +0300)]
gianfar: Fix warnings when built on 64-bit
As part of defconfig consolidation using fragments, we'd like to be
able to have the same drivers enabled on 32-bit and 64-bit. Gianfar
happens to only exist on 32-bit systems, and when building the
resulting 64-bit kernel warnings were produced.
A couple of the warnings are trivial, but the rfbptr code has deeper
issues. It uses the virtual address as the DMA address, which again,
happens to work in the environments where this driver is currently
used, but is not the right thing to do.
Fixes: 45b679c9a3cc ("gianfar: Implement PAUSE frame generation
support") Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 30 Jul 2015 05:44:05 +0000 (22:44 -0700)]
Merge branch 'sk_txhash'
Tom Herbert says:
====================
net: Initialize sk_hash to random value and reset for failing cnxs
This patch set implements a common function to simply set sk_txhash to
a random number instead of going through the trouble to call flow
dissector. From dst_negative_advice we now reset the sk_txhash in hopes
of finding a better ECMP path through the network. Changing sk_txhash
affects:
- IPv6 flow label and UDP source port which affect ECMP in the network
- Local ECMP route selection (pending changes to use sk_txhash)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Tue, 28 Jul 2015 23:02:06 +0000 (16:02 -0700)]
net: Recompute sk_txhash on negative routing advice
When a connection is failing a transport protocol calls
dst_negative_advice to try to get a better route. This patch includes
changing the sk_txhash in that function. This provides a rudimentary
method to try to find a different path in the network since sk_txhash
affects ECMP on the local host and through the network (via flow labels
or UDP source port in encapsulation).
Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Tue, 28 Jul 2015 23:02:05 +0000 (16:02 -0700)]
net: Set sk_txhash from a random number
This patch creates sk_set_txhash and eliminates protocol specific
inet_set_txhash and ip6_set_txhash. sk_set_txhash simply sets a
random number instead of performing flow dissection. sk_set_txash
is also allowed to be called multiple times for the same socket,
we'll need this when redoing the hash for negative routing advice.
Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Airlie [Thu, 30 Jul 2015 02:41:44 +0000 (12:41 +1000)]
Merge branch 'msm-fixes-4.2' of git://people.freedesktop.org/~robclark/linux into drm-fixes
Fix for nasty crash on mdp4 in disable path, fix for dma-buf export,
smb leak on mdp5 which could result in intermittent modeset fails, and
don't let interrupted system call disturb atomic commit once we are
past the point of no return.
* 'msm-fixes-4.2' of git://people.freedesktop.org/~robclark/linux:
drm/msm/mdp5: release SMB (shared memory blocks) in various cases
drm/msm: change to uninterruptible wait in atomic commit
drm/msm: mdp4: Fix drm_framebuffer dereference crash
drm/msm: fix msm_gem_prime_get_sg_table()
Dave Airlie [Thu, 30 Jul 2015 02:40:27 +0000 (12:40 +1000)]
Merge branch 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Radeon and amdgpu fixes for 4.2. The audio fix ended up being more
invasive than I would have liked, but this should finally fix up the
last of the regressions since DP audio support was added.
* 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: add new parameter to seperate map and unmap
drm/amdgpu: hdp_flush is not needed for inside IB
drm/amdgpu: different emit_ib for gfx and compute
drm/amdgpu: information leak in amdgpu_info_ioctl()
drm/amdgpu: clean up init sequence for failures
drm/radeon/combios: add some validation of lvds values
drm/radeon: rework audio modeset to handle non-audio hdmi features
drm/radeon: rework audio detect (v4)
drm/amdgpu: Drop drm/ prefix for including drm.h in amdgpu_drm.h
drm/radeon: Drop drm/ prefix for including drm.h in radeon_drm.h
net: netcp: ethss: cleanup gbe_probe() and gbe_remove() functions
This patch clean up error handle code to use goto label properly. In some
cases, the code unnecessarily use goto instead of just returning the error
code. Code also make explicit calls to devm_* APIs on error which is
not necessary. In the gbe_remove() also it makes similar calls which is
also unnecessary.
Also fix few checkpatch warnings
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: netcp: ethss: fix up incorrect use of list api
The code seems to assume a null is returned when the list is empty
from first_sec_slave() to break the loop which is incorrect. Fix the
code by using list_empty().
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Merge tag 'pm+acpi-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These fix three regressions, two recent ones (cpufreq core and ACPI
device power management) and one introduced during the 4.1 cycle
(intel_pstate).
Specifics:
- Fix a recently introduced issue in the cpufreq core causing it to
attempt to create duplicate symbolic links to the policy directory
in sysfs for CPUs that are offline when the cpufreq driver is being
registered (Rafael J Wysocki)
- Fix a recently introduced problem in the ACPI device power
management core code causing it to store an incorrect value in the
device object's power.state field in some cases which in turn leads
to attempts to turn power resources off while they should still be
on going forward (Mika Westerberg)
- Fix an intel_pstate driver issue introduced during the 4.1 cycle
which leads to kernel panics on boot on Knights Landing chips due
to incomplete support for them in that driver (Lukasz Anaczkowski)"
* tag 'pm+acpi-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: Avoid attempts to create duplicate symbolic links
ACPI / PM: Use target_state to set the device power state
intel_pstate: Add get_scaling cpu_defaults param to Knights Landing
Merge tag 'dm-4.2-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- fix DM thinp to consistently return -ENOSPC when out of data space
- fix a logic bug in the DM cache smq policy's creation error path
- revert a DM cache 4.2-rc3 change that reduced writeback efficiency
- fix a hang on DM cache device destruction due to improper
prealloc_used accounting introduced in 4.2-rc3
- update URL for dm-crypt wiki page
* tag 'dm-4.2-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: fix device destroy hang due to improper prealloc_used accounting
Revert "dm cache: do not wake_worker() in free_migration()"
dm crypt: update wiki page URL
dm cache policy smq: fix alloc_bitset check that always evaluates as false
dm thin: return -ENOSPC when erroring retry list due to out of data space
David S. Miller [Thu, 30 Jul 2015 00:17:44 +0000 (17:17 -0700)]
Merge branch 'thunderx_octeon_mdio'
Radha Mohan Chintakuntla says:
====================
Add MDIO support to ThunderX NIC driver
This patch series adds MDIO support to ThunderX NIC driver by making use
of existing mdio-octeon driver. In the process modified the mdio-octeon
driver to work on both Octeon and ThunderX platforms.
* From v1:
- Removed default selection in Kconfig for MDIO_OCTEON
- Replace uint64 with u64 as suggested by David Daney
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
net: mdio-octeon: Fix octeon_mdiobus_probe function for return values
This patch fixes a possible crash in the octeon_mdiobus_probe function
if the return values are not handled properly.
Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
net: mdio-octeon: Modify driver to work on both ThunderX and Octeon
This patch modifies the mdio-octeon driver to work on both ThunderX and
Octeon SoCs from Cavium Inc.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: netcp: Fixes efuse mac addr swap on k2e and k2l
On some of the K2E and K2L platforms, the two DWORDs in
efuse occupied by the pre-programmed mac address for
slave port 1 are swapped. To workaround this issue,
this patch adds a new define NETCP_EFUSE_ADDR_SWAP (2)
which signifies the occurrence of such swapping so that
the driver can take proper action. The flag can be
enabled in the corresponding netcp interface dts binding
as efuse-mac = <2> under the corresponding netcp
interface node.
Signed-off-by: WingMan Kwok <w-kwok2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 28 Jul 2015 13:26:36 +0000 (15:26 +0200)]
ebpf, x86: fix general protection fault when tail call is invoked
With eBPF JIT compiler enabled on x86_64, I was able to reliably trigger
the following general protection fault out of an eBPF program with a simple
tail call, f.e. tracex5 (or a stripped down version of it):
The problem is that rax has 5a5a5a5a5a5a5a5a, which suggests a tail call
jump to map slot 0 is pointing to a poisoned page. The issue is the following:
lea instruction has a wrong offset, i.e. it should be ...
lea 0x80(%rsi,%rdx,8),%rax
... but it actually seems to be ...
lea -0x80(%rsi,%rdx,8),%rax
... where 0x80 is offsetof(struct bpf_array, prog), thus the offset needs
to be positive instead of negative. Disassembling the interpreter, we btw
similarly do:
Now the other interesting fact is that this panic triggers only when things
like CONFIG_LOCKDEP are being used. In that case offsetof(struct bpf_array,
prog) starts at offset 0x80 and in non-CONFIG_LOCKDEP case at offset 0x50.
Reason is that the work_struct inside struct bpf_map grows by 48 bytes in my
case due to the lockdep_map member (which also has CONFIG_LOCK_STAT enabled
members).
Changing the emitter to always use the 4 byte displacement in the lea
instruction fixes the panic on my side. It increases the tail call instruction
emission by 3 more byte, but it should cover us from various combinations
(and perhaps other future increases on related structures).
Fixes: b52f00e6a715 ("x86: bpf_jit: implement bpf_tail_call() helper") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Maloy [Wed, 29 Jul 2015 22:28:01 +0000 (18:28 -0400)]
tipc: fix bug in broadcast synch message create function
In commit d999297c3dbbe7fdd832f7fa4ec84301e170b3e6
("tipc: reduce locking scope during packet reception") we introduced
a new function tipc_build_bcast_sync_msg(), which carries initial
synchronization data between two nodes at first contact and at
re-contact. In this function, we missed to add synchronization data,
with the effect that the broadcast link endpoints will fail to
synchronize correctly at re-contact between a running and a restarted
node. All other cases work as intended.
With this commit, we fix this bug.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
packet: remove handling of tx_ring from prb_shutdown_retire_blk_timer()
Follow e8e85cc5eb57 ("packet: remove handling of tx_ring") and remove
the tx_ring parameter from prb_shutdown_retire_blk_timer() as it is only
called with tx_ring = 0.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Since mdb states were introduced when deleting an entry the state was
left as it was set in the delete request from the user which leads to
the following output when doing a monitor (for example):
$ bridge mdb add dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent
$ bridge mdb del dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 temp
^^^
Note the "temp" state in the delete notification which is wrong since
the entry was permanent, the state in a delete is always reported as
"temp" regardless of the real state of the entry.
After this patch:
$ bridge mdb add dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent
$ bridge mdb del dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent
There's one important note to make here that the state is actually not
matched when doing a delete, so one can delete a permanent entry by
stating "temp" in the end of the command, I've chosen this fix in order
not to break user-space tools which rely on this (incorrect) behaviour.
So to give an example after this patch and using the wrong state:
$ bridge mdb add dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent
$ bridge mdb del dev br0 port eth3 grp 239.0.0.1 temp
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent
Note the state of the entry that got deleted is correct in the
notification.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Fixes: ccb1c31a7a87 ("bridge: add flags to distinguish permanent mdb entires") Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Holzheu [Wed, 29 Jul 2015 19:15:18 +0000 (21:15 +0200)]
s390/bpf: recache skb->data/hlen for skb_vlan_push/pop
Allow eBPF programs attached to TC qdiscs call skb_vlan_push/pop
via helper functions. These functions may change skb->data/hlen.
This data is cached by s390 JIT to improve performance of ld_abs/ld_ind
instructions. Therefore after a change we have to reload the data.
In case of usage of skb_vlan_push/pop, in the prologue we store
the SKB pointer on the stack and restore it after BPF_JMP_CALL
to skb_vlan_push/pop.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Holzheu [Wed, 29 Jul 2015 19:15:16 +0000 (21:15 +0200)]
s390/bpf: increase BPF_SIZE_MAX
Currently we have the restriction that jitted BPF programs can
have a maximum size of one page. The reason is that we use short
displacements for the literal pool.
The 20 bit displacements are available since z990 and BPF requires
z196 as minimum. Therefore we can remove this restriction and use
everywhere 20 bit signed long displacements.
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Holzheu [Wed, 29 Jul 2015 19:15:15 +0000 (21:15 +0200)]
s390/bpf: Fix multiple macro expansions
The EMIT6_DISP_LH macro passes the "disp" parameter to the _EMIT6_DISP_LH
macro. The _EMIT6_DISP_LH macro uses the "disp" parameter twice:
unsigned int __disp_h = ((u32)disp) & 0xff000;
unsigned int __disp_l = ((u32)disp) & 0x00fff;
The EMIT6_DISP_LH is used several times with EMIT_CONST_U64() as "disp"
parameter. Therefore always two constants are created per usage of
EMIT6_DISP_LH.
Fix this and add variable "_disp" to avoid multiple expansions.
* v2: Move "_disp" to _EMIT6_DISP_LH as suggested by Joe Perches
Fixes: 054623105728 ("s390/bpf: Add s390x eBPF JIT compiler backend") Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
bridge: mcast: give fast leave precedence over multicast router and querier
When fast leave is configured on a bridge port and an IGMP leave is
received for a group, the group is not deleted immediately if there is
a router detected or if multicast querier is configured.
Ideally the group should be deleted immediately when fast leave is
configured.
Signed-off-by: Satish Ashok <sashok@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Wentao Xu [Fri, 19 Jun 2015 18:03:42 +0000 (14:03 -0400)]
drm/msm/mdp5: release SMB (shared memory blocks) in various cases
Release all blocks after the pipe is disabled, even when vsync
didn't happen in some error cases. Allow requesting SMB multiple
times before configuring to hardware, by releasing blocks not
programmed to hardware yet for shrinking case.
This fixes a potential leak of shared memory pool blocks.
Signed-off-by: Wentao Xu <wentaox@codeaurora.org> Tested-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>