firefly-linux-kernel-4.4.55.git
10 years agoi40e/i40evf: fix extension header csum logic
Jesse Brandeburg [Wed, 9 Jul 2014 07:46:13 +0000 (07:46 +0000)]
i40e/i40evf: fix extension header csum logic

The hardware design requires that the driver avoid indicating
checksum offload success on some ipv6 frames with extension
headers.

The code needs to just check for the IPV6EXADD bit and if
it is set punt the checksum to the stack.  I don't know why
the code was checking TCP on inner protocol, as that code
doesn't make any sense to me but seems wrong, so remove it.

Change-ID: I10d3aacdbb1819fb60b4b0eb80e6cc67ef2c9599
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-By: Jim Young <jamesx.m.young@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e/i40evf: Add nvmupdate support
Shannon Nelson [Wed, 9 Jul 2014 07:46:09 +0000 (07:46 +0000)]
i40e/i40evf: Add nvmupdate support

This implements a state machine intended to support the userland tool for
updating the device eeprom. The state machine implements one-shot reads,
writes, multi-step write sessions, and checksum requests. If we're in the middle
of a multi-step write session, no one should fire off other writes, however, one
shot reads are valid. The userland tool is expected to keep track of its session
status, arrange the placement and ordering of the writes, and deal with the
checksum requirement.

This patch also adds nvmupdate support to ethtool callbacks.
The get_eeprom() and set_eeprom() services in ethtool are used here to
facilitate the userland NVMUpdate tool.  The 'magic' value in the get and
set commands is used to pass additional control information for managing
the read and write steps.

The read operation works both as normally expected in the standard ethtool
method, as well as with the extra NVM controls.  The write operation
works only for the expanded NVM functions - the normal ethtool method is
not allowed because of the NVM semaphore management needed for multipart
writes, as well as the checksum requirement.

Change-ID: I1d84a170153a9f437906744e2e350fd68fe7563d
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoi40e: fix format mismatch in drivers/net/ethernet/intel/i40e/i40e_debugfs.c
Toralf Förster [Tue, 20 May 2014 08:23:00 +0000 (08:23 +0000)]
i40e: fix format mismatch in drivers/net/ethernet/intel/i40e/i40e_debugfs.c

spotted by cppcheck

Signed-off-by: Toralf Förster <toralf.foerster@gmx.de>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoigb: bump igb version to 5.2.13
Todd Fujinaka [Tue, 15 Jul 2014 06:51:11 +0000 (06:51 +0000)]
igb: bump igb version to 5.2.13

Bump version number.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoigb: Add message when malformed packets detected by hw
Carolyn Wyborny [Wed, 9 Jul 2014 04:55:45 +0000 (04:55 +0000)]
igb: Add message when malformed packets detected by hw

This patch adds a check and prints the error cause register value when
the hardware detects a malformed packet.  This is a very unlikely
scenario but has been seen occasionally, so printing the message to
assist the user.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoixgbe: don't check minimum link when direct assigned to virtual machine
Jacob Keller [Sat, 19 Jul 2014 07:17:17 +0000 (07:17 +0000)]
ixgbe: don't check minimum link when direct assigned to virtual machine

This patch prevents the display of the minimum link qualification check
if we might be in a virtual machine. This check is incorrect and
misleading in this case, since we actually don't really know what the
available bandwidth is. To do so, we simply check whether each function
on the bus matches our device id. If it doesn't the most likely scenario
is that we're directly assigned to a virtual machine.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoixgbe: fix use of list_for_each in ixgbe_enumerate_functions
Jacob Keller [Sat, 19 Jul 2014 07:17:16 +0000 (07:17 +0000)]
ixgbe: fix use of list_for_each in ixgbe_enumerate_functions

Fix a bug in the misuse of the list_for_each macro to loop over every
entry in the bus_list. Instead of attempting to loop over the list from
a random entry point, go up to the bus and use the real list_head entry
point. This prevents the possible read or write of unallocated or
incorrectly addressed memory.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoixgbe: Change some uses of strncpy to strlcpy
Mark Rustad [Fri, 6 Jun 2014 01:57:06 +0000 (01:57 +0000)]
ixgbe: Change some uses of strncpy to strlcpy

Change some uses of strncpy to use the more appropriate strlcpy
when clearing is not needed to prevent information leakage. Also
change some length arguments to use the preferred sizeof form.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoixgbe: Fix possible null-dereference in error path
Mark Rustad [Fri, 6 Jun 2014 01:57:00 +0000 (01:57 +0000)]
ixgbe: Fix possible null-dereference in error path

In ixgbe_probe, the code at label err_dma can dereference adapter
when it has a NULL value. The check is there to avoid disabling a
disabled device. When adapter is NULL, treat it as if the device
is enabled, because it is enabled in that case.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
10 years agoMerge branch 'filter-move'
David S. Miller [Thu, 24 Jul 2014 04:06:30 +0000 (21:06 -0700)]
Merge branch 'filter-move'

Alexei Starovoitov says:

====================
I believe my recent set of RFC/patches [1] provided good visibility on where
I would like to take eBPF subsystem. These two trivial patches is a first step
in that direction:
patch 1 - mechanical split of eBPF interpreter out of filter.c
patch 2 - nominate myself as a maintainer for eBPF core pieces
In the foreseeable future eBPF patches will be going through net-next,
so put netdev as a primary mailing list

[1] git://git.kernel.org/pub/scm/linux/kernel/git/ast/bpf master
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobpf: update MAINTAINERS entry
Alexei Starovoitov [Wed, 23 Jul 2014 06:01:59 +0000 (23:01 -0700)]
bpf: update MAINTAINERS entry

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: filter: split filter.c into two files
Alexei Starovoitov [Wed, 23 Jul 2014 06:01:58 +0000 (23:01 -0700)]
net: filter: split filter.c into two files

BPF is used in several kernel components. This split creates logical boundary
between generic eBPF core and the rest

kernel/bpf/core.c: eBPF interpreter

net/core/filter.c: classic->eBPF converter, classic verifiers, socket filters

This patch only moves functions.

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'bcmgenet-next'
David S. Miller [Wed, 23 Jul 2014 22:14:55 +0000 (15:14 -0700)]
Merge branch 'bcmgenet-next'

Florian Fainelli says:

====================
net: bcmgenet: checkpatch fixes

This patch series contains cleanups for CHECK and WARNINGS reported by
checkpatch.pl. I removed one patch from this series since Joe reported
this was a false positive due to me not using the latest version.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: use kcalloc instead of kzalloc
Florian Fainelli [Wed, 23 Jul 2014 17:42:15 +0000 (10:42 -0700)]
net: bcmgenet: use kcalloc instead of kzalloc

There were two places that used kzalloc() with a multiplied sizeof(),
replace these with kcalloc as recommended by checkpatch.pl.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: add missing braces to some if statements
Florian Fainelli [Wed, 23 Jul 2014 17:42:14 +0000 (10:42 -0700)]
net: bcmgenet: add missing braces to some if statements

checkpatch.pl flagged two locations that did not comply to "CHECK:
braces {} should be used on all arms of this statement", fix them.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: add and remove missing blank lines
Florian Fainelli [Wed, 23 Jul 2014 17:42:13 +0000 (10:42 -0700)]
net: bcmgenet: add and remove missing blank lines

checkpatch.pl flagged two blank lines which are not needed, and one that
was missing, fix them.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: re-align multiple lines correctly
Florian Fainelli [Wed, 23 Jul 2014 17:42:12 +0000 (10:42 -0700)]
net: bcmgenet: re-align multiple lines correctly

checkpatch.pl flagged a lot of "CHECK: Alignment should match open
parenthesis" checks, fix all of them to make the driver neater. While
at it fix some obvious typos and re-arrange some of the lines to avoid
going over 80 columns.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: remove FSF mail address
Florian Fainelli [Wed, 23 Jul 2014 17:42:11 +0000 (10:42 -0700)]
net: bcmgenet: remove FSF mail address

Use a smaller GPLv2 header and remove all the boilerplate code as well
as the FSF mail address.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoipv4: Make IP_MULTICAST_ALL and IP_MSFILTER work on raw sockets
Quentin Armitage [Wed, 23 Jul 2014 08:58:01 +0000 (09:58 +0100)]
ipv4: Make IP_MULTICAST_ALL and IP_MSFILTER work on raw sockets

Currently, although IP_MULTICAST_ALL and IP_MSFILTER ioctl calls succeed on
raw sockets, there is no code to implement the functionality on received
packets; it is only implemented for UDP sockets. The raw(7) man page states:
"In addition, all ip(7) IPPROTO_IP socket options valid for datagram sockets
are supported", which implies these ioctls should work on raw sockets.

To fix this, add a call to ip_mc_sf_allow on raw sockets.

This should not break any existing code, since the current position of
not calling ip_mc_sf_filter makes it behave as if neither the IP_MULTICAST_ALL
nor the IP_MSFILTER ioctl had been called. Adding the call to ip_mc_sf_allow
will therefore maintain the current behaviour so long as IP_MULTICAST_ALL and
IP_MSFILTER ioctls are not called. Any code that currently is calling
IP_MULTICAST_ALL or IP_MSFILTER ioctls on raw sockets presumably is wanting
the filter to be applied, although no filtering will currently be occurring.

Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'virtio-net-busy-poll'
David S. Miller [Wed, 23 Jul 2014 22:12:32 +0000 (15:12 -0700)]
Merge branch 'virtio-net-busy-poll'

Jason Wang says:

====================
rx busy polling support for virtio-net

This series introduces the support for rx busy polling support.  This
was useful for reducing the latency for a kvm guest.  Instead of
introducing new states and spinlocks, this series re-uses NAPI state
to synchonrize between NAPI and busy polling.  This grealy simplified
the codes and reduce the overheads of spinlocks for normal NAPI fast
path.

Test was done between a kvm guest and an external host.  Two hosts were
connected through 40gb mlx4 cards. With both busy_poll and  busy_read
are set to 50 in guest, 1 byte netperf tcp_rr shows 127% improvement:
transaction rate was increased from 8353.33 to 18966.87.

Changes from V2:
- Avoid introducing new states and spinlocks by reusuing the NAPI
  state
- Fix the budget calculation in virtnet_poll()
- Drop patch 1/3 from V2 since it was useless

Changes from V1:
- split the patch info smaller ones
- add more details about test setup/configuration
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agovirtio-net: rx busy polling support
Jason Wang [Wed, 23 Jul 2014 08:33:55 +0000 (16:33 +0800)]
virtio-net: rx busy polling support

Add basic support for rx busy polling. Instead of introducing new
states and spinlock to synchronize between NAPI and polling method,
this patch just reuse NAPI state to avoid extra overhead for fast path
and simplified the codes.

Test was done between a kvm guest and an external host. Two hosts were
connected through 40gb mlx4 cards. With both busy_poll and busy_read
are set to 50 in guest, 1 byte netperf tcp_rr shows 127% improvement:
transaction rate was increased from 8353.33 to 18966.87.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Vlad Yasevich <vyasevic@redhat.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agovirtio-net: introduce virtnet_receive()
Jason Wang [Wed, 23 Jul 2014 08:33:54 +0000 (16:33 +0800)]
virtio-net: introduce virtnet_receive()

Move common receive logic to a new helper virtnet_receive(). It will
also be used by rx busy polling method.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Vlad Yasevich <vyasevic@redhat.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethernet: realtek: use pci_device_id
Varka Bhadram [Wed, 23 Jul 2014 03:49:49 +0000 (09:19 +0530)]
ethernet: realtek: use pci_device_id

This patch use the struct pci_device_id instead of using macro
DEFINE_PCI_DEVICE_TABLE which is deprecated and should not be used.
And also moves these ids after probe and remove functionalities.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoethernet: realtek: use module_pci_driver
Varka Bhadram [Wed, 23 Jul 2014 03:49:48 +0000 (09:19 +0530)]
ethernet: realtek: use module_pci_driver

This patch converts to use the macro module_pci_driver, which makes
the code smaller and simpler.

Previously in this driver we are having driver version info will be
printed log buffer based on whether the driver selected as module
or statically into image itself. By using the module_pci_driver that
part of the code removed. For the first time of the device init,
we are making the version info to be printed once.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosock: remove skb argument from sk_rcvqueues_full
Sorin Dumitru [Tue, 22 Jul 2014 18:16:51 +0000 (21:16 +0300)]
sock: remove skb argument from sk_rcvqueues_full

It hasn't been used since commit 0fd7bac(net: relax rcvbuf limits).

Signed-off-by: Sorin Dumitru <sorin@returnze.ro>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agodrivers: net: cpsw: add support to dump ALE table via ethtool register dump
Mugunthan V N [Tue, 22 Jul 2014 17:55:07 +0000 (23:25 +0530)]
drivers: net: cpsw: add support to dump ALE table via ethtool register dump

Add support to view addresses added by the driver and learnt by the
hardware from ALE table via ethtool register dump interface.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agodp83640: Fix receive timestamp race condition
Stefan Sørensen [Tue, 22 Jul 2014 13:20:45 +0000 (15:20 +0200)]
dp83640: Fix receive timestamp race condition

When timestamping received packets, rx_timestamp_work may be scheduled
before the timestamps is received from the hardware resulting in the
packet beeing delivered without the timestamp.

This is fixed by changing the receive timestamp path:

On receiving a packet that need timestamping, the rxts list is
traversed.  If a match is found, packet+timestamp are delivered,
otherwise the packet is added to a rx_queue.

When a timestamp arrives rx_queue is traversed and if a matching
packet is found, it is delivered with the timestamp. Otherwise the
timestamp is added to the rxts list for matching with packets arriving
later.

In case the hardware drops a timestamp, a workqueue regularly checks
the queue for old packets and delivers them without a timestamp.

Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosfc: Add support for busy polling
Alexandre Rames [Tue, 22 Jul 2014 13:03:25 +0000 (14:03 +0100)]
sfc: Add support for busy polling

This patch adds the sfc driver code for implementing busy polling.
It adds ndo_busy_poll method and locking between it and napi poll.
It also adds each napi to the napi_hash right after netif_napi_add().

Uses efx_start_eventq and efx_stop_eventq in the self tests.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'mlx4-next'
David S. Miller [Wed, 23 Jul 2014 02:53:55 +0000 (19:53 -0700)]
Merge branch 'mlx4-next'

Amir Vadai says:

====================
Mellanox driver update Jul-22-2014

This patchset contains a fix by Eyal to fix a bug in mlx4_en with bonding
alb/tlb mode.
The second patch, by me, is an ethtool private flag that enable turning off the
BlueFlame hardware feature.
The last two patches, introduce a new low memory profile for mlx4_en and
mlx4_core. This mode is useful when running from a limited resources
environment, like kdump. This will reduce the memory consumed by both drivers
from more than 100M to ~30M.

This patchset was applied and tested on commit 575a193 ("net: mvpp2: Fix error
return code in mvpp2_probe")
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet/mlx4_en: Reduce memory consumption on kdump kernel
Amir Vadai [Tue, 22 Jul 2014 12:44:12 +0000 (15:44 +0300)]
net/mlx4_en: Reduce memory consumption on kdump kernel

When memory is limited, reduce number of rx and tx rings.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet/mlx4_core: Use low memory profile on kdump kernel
Amir Vadai [Tue, 22 Jul 2014 12:44:11 +0000 (15:44 +0300)]
net/mlx4_core: Use low memory profile on kdump kernel

When running in kdump kernel, reduce number of resources allocated for
the hardware. This will enable the NIC to operate in this low memory
environment at the expense of performance and some features not related
to the basic NIC functionality.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet/mlx4_en: Disable blueflame using ethtool private flags
Amir Vadai [Tue, 22 Jul 2014 12:44:10 +0000 (15:44 +0300)]
net/mlx4_en: Disable blueflame using ethtool private flags

Enable the user to turn off the hardware feature called BlueFlame.
Since it is something specific to mlx4_en hardware, we control
the feature via ethtool private flags.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet/mlx4_en: current_mac isn't updated in port up
Eyal Perry [Tue, 22 Jul 2014 12:44:09 +0000 (15:44 +0300)]
net/mlx4_en: current_mac isn't updated in port up

When port is down dev_addr is changed (e.g. by bonding) but current_mac
is not touched. When port is up again, hash_mac is updated to dev_addr,
but current_mac isn't. This leads to inconsistency between current_mac
and mac_hash. Because of that, mlx4_en_replace_mac() fails to find
current_mac in mac_hash.

Fix is to reset current_mac to dev_addr when port is up - as we do for
mac_hash.

Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: mvpp2: Simplify BM pool buffers freeing
Ezequiel Garcia [Mon, 21 Jul 2014 16:48:14 +0000 (13:48 -0300)]
net: mvpp2: Simplify BM pool buffers freeing

Now that all the users of mvpp2_bm_bufs_free() have been fixed, we can safely
clean the function prototype.

The function is always called to release all the buffers in a BM pool, and
the number of buffers freed is not needed. Therefore, we change the return
to a void, and remove the "num" parameter. This is a cosmetic change, to
make the code slightly cleaner.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: mvpp2: Fix the BM pool buffer release check
Ezequiel Garcia [Mon, 21 Jul 2014 16:48:13 +0000 (13:48 -0300)]
net: mvpp2: Fix the BM pool buffer release check

After a call to mvpp2_bm_bufs_free(), the caller usually wants to know
if the function successfully freed the requested number. However, this
cannot be done by looking into the BM pool count, because the current
buffer count was updated by mvpp2_bm_bufs_free().

In fact, the current callers of mvpp2_bm_bufs_free() use it to release
all the buffers in the pool, so we can fix this by simply checking
if the pool is not empty.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: mvpp2: Enable proper PHY polling and fix port functionality
Marcin Wojtas [Mon, 21 Jul 2014 16:48:12 +0000 (13:48 -0300)]
net: mvpp2: Enable proper PHY polling and fix port functionality

Currently, the network interfaces that are not configured by the bootloader
(using e.g. tftp or ping) can detect the link status but are unable to
transmit data.

The network controller has a functionality that allows the hardware to
continuously poll the PHY and directly update the MAC configuration accordingly
(speed, duplex, etc.). However, this doesn't work well with phylib's
software-based polling and updating MAC configuration in the driver's callback.

This commit fixes this issue by:

  1. Setting MVPP2_PHY_AN_STOP_SMI0_MASK in MVPP2_PHY_AN_CFG0_REG in
     mvpp2_init(), which disables the harware polling feature.

  2. Disabling MVPP2_GMAC_PCS_ENABLE_MASK bit in MVPP2_GMAC_CTRL_2_REG in
     mvpp2_port_mii_set() for port types other than SGMII.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: mvpp2: Fix the periodic XON enable bit
Marcin Wojtas [Mon, 21 Jul 2014 16:48:11 +0000 (13:48 -0300)]
net: mvpp2: Fix the periodic XON enable bit

This bit was originally wrong, the correct value is BIT(1), so fix it.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: skbuff: Use ALIGN macro instead of open coding it
Tobias Klauser [Tue, 22 Jul 2014 10:06:23 +0000 (12:06 +0200)]
net: skbuff: Use ALIGN macro instead of open coding it

Use ALIGN from linux/kernel.h to define SKB_DATA_ALIGN instead of open
coding it.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: sctp: Rename SCTP_XMIT_NAGLE_DELAY to SCTP_XMIT_DELAY
David Laight [Tue, 22 Jul 2014 08:59:14 +0000 (08:59 +0000)]
net: sctp: Rename SCTP_XMIT_NAGLE_DELAY to SCTP_XMIT_DELAY

MSG_MORE and 'corking' a socket would require that the transmit of
a data chunk be delayed.
Rename the return value to be less specific.

Signed-off-by: David Laight <david.laight@aculab.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: sctp: Open out the check for Nagle
David Laight [Tue, 22 Jul 2014 08:59:08 +0000 (08:59 +0000)]
net: sctp: Open out the check for Nagle

The check for Nagle contains 6 separate checks all of which must be true
before a data packet is delayed.
Separate out each into its own 'if (test) return SCTP_XMIT_OK' so that
the reasons can be individually described.

Also return directly with SCTP_XMIT_RWND_FULL.
Delete the now-unused 'retval' variable and 'finish' label from
sctp_packet_can_append_data().

Signed-off-by: David Laight <david.laight@aculab.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Tue, 22 Jul 2014 07:44:59 +0000 (00:44 -0700)]
Merge git://git./linux/kernel/git/davem/net

Conflicts:
drivers/infiniband/hw/cxgb4/device.c

The cxgb4 conflict was simply overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Tue, 22 Jul 2014 05:46:01 +0000 (22:46 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Null termination fix in dns_resolver got the pointer dereferncing
    wrong, fix from Ben Hutchings.

 2) ip_options_compile() has a benign but real buffer overflow when
    parsing options.  From Eric Dumazet.

 3) Table updates can crash in netfilter's nftables if none of the state
    flags indicate an actual change, from Pablo Neira Ayuso.

 4) Fix race in nf_tables dumping, also from Pablo.

 5) GRE-GRO support broke the forwarding path because the segmentation
    state was not fully initialized in these paths, from Jerry Chu.

 6) sunvnet driver leaks objects and potentially crashes on module
    unload, from Sowmini Varadhan.

 7) We can accidently generate the same handle for several u32
    classifier filters, fix from Cong Wang.

 8) Several edge case bug fixes in fragment handling in xen-netback,
    from Zoltan Kiss.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
  ipv4: fix buffer overflow in ip_options_compile()
  batman-adv: fix TT VLAN inconsistency on VLAN re-add
  batman-adv: drop QinQ claim frames in bridge loop avoidance
  dns_resolver: Null-terminate the right string
  xen-netback: Fix pointer incrementation to avoid incorrect logging
  xen-netback: Fix releasing header slot on error path
  xen-netback: Fix releasing frag_list skbs in error path
  xen-netback: Fix handling frag_list on grant op error path
  net_sched: avoid generating same handle for u32 filters
  net: huawei_cdc_ncm: add "subclass 3" devices
  net: qmi_wwan: add two Sierra Wireless/Netgear devices
  wan/x25_asy: integer overflow in x25_asy_change_mtu()
  net: ppp: fix creating PPP pass and active filters
  net/mlx4_en: cq->irq_desc wasn't set in legacy EQ's
  sunvnet: clean up objects created in vnet_new() on vnet_exit()
  r8169: Enable RX_MULTI_EN for RTL_GIGA_MAC_VER_40
  net-gre-gro: Fix a bug that breaks the forwarding path
  netfilter: nf_tables: 64bit stats need some extra synchronization
  netfilter: nf_tables: set NLM_F_DUMP_INTR if netlink dumping is stale
  netfilter: nf_tables: safe RCU iteration on list when dumping
  ...

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Tue, 22 Jul 2014 05:45:28 +0000 (22:45 -0700)]
Merge git://git./linux/kernel/git/davem/sparc

Pull sparc fix from David Miller:
 "Need to hook up the new renameat2 system call"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Hook up renameat2 syscall.

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
Linus Torvalds [Tue, 22 Jul 2014 05:44:24 +0000 (22:44 -0700)]
Merge git://git./linux/kernel/git/davem/ide

Pull IDE fixes from David Miller:
 - fix interrupt registry for some Atari IDE chipsets.
 - adjust Kconfig dependencies for x86_32 specific chips.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
  ide: Fix SC1200 dependencies
  ide: Fix CS5520 and CS5530 dependencies
  m68k/atari - ide: do not register interrupt if host->get_lock is set

10 years agoMerge tag 'trace-fixes-v3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 22 Jul 2014 05:43:15 +0000 (22:43 -0700)]
Merge tag 'trace-fixes-v3.16-rc6' of git://git./linux/kernel/git/rostedt/linux-trace

Pull trace fix from Steven Rostedt:
 "Tony Luck found that using the "uptime" trace clock that uses jiffies
  as a counter was converted to nanoseconds (silly), and after 1 hour 11
  minutes and 34 seconds, this monotonic clock would wrap, causing havoc
  with the tracing system and making the clock useless.

  He converted that clock to use jiffies_64 and made it into a counter
  instead of nanosecond conversions, and displayed the clock with the
  straight jiffy count, which works much better than it did in the past"

* tag 'trace-fixes-v3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix wraparound problems in "uptime" trace clock

10 years agosparc: Hook up renameat2 syscall.
David S. Miller [Tue, 22 Jul 2014 05:27:56 +0000 (22:27 -0700)]
sparc: Hook up renameat2 syscall.

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'cxgb4-next'
David S. Miller [Tue, 22 Jul 2014 03:24:32 +0000 (20:24 -0700)]
Merge branch 'cxgb4-next'

Hariprasad Shenai says:

====================
Misc. fix for cxgb4 and iw_cxgb4

This patch series adds support to enchance error reporting, log detailed
warning for negative advice, support query_qp verb and advertise correct
device max attributes for iwarp.

The patches series is created against 'net-next' tree.
And includes patches on cxgb4 and iw_cxgb4 driver.

Since this patch-series contains changes which are dependent on commit id
4c2c5763 ("cxgb4/iw_cxgb4: use firmware ord/ird resource limits") of net-next
tree we would like to request this patch series to get merged via David Miller's
'net-next' tree.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoiw_cxgb4: Don't limit TPTE count to 32KB
Hariprasad Shenai [Mon, 21 Jul 2014 15:25:16 +0000 (20:55 +0530)]
iw_cxgb4: Don't limit TPTE count to 32KB

Use the size advertised by FW

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoiw_cxgb4: advertise the correct device max attributes
Hariprasad Shenai [Mon, 21 Jul 2014 15:25:15 +0000 (20:55 +0530)]
iw_cxgb4: advertise the correct device max attributes

Advertise the actual max limits for things like qp depths, number of
qps, cqs, etc.

Clean up the queue allocation for qps and cqs.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoiw_cxgb4: Support query_qp() verb
Hariprasad Shenai [Mon, 21 Jul 2014 15:25:14 +0000 (20:55 +0530)]
iw_cxgb4: Support query_qp() verb

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoiw_cxgb4: log detailed warnings for negative advice
Hariprasad Shenai [Mon, 21 Jul 2014 15:25:13 +0000 (20:55 +0530)]
iw_cxgb4: log detailed warnings for negative advice

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agocxgb4: Add the MC1 registers to read in the interrupt handler
Hariprasad Shenai [Mon, 21 Jul 2014 15:25:12 +0000 (20:55 +0530)]
cxgb4: Add the MC1 registers to read in the interrupt handler

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'enic-next'
David S. Miller [Tue, 22 Jul 2014 03:22:52 +0000 (20:22 -0700)]
Merge branch 'enic-next'

Govindarajulu Varadarajan says:

====================
enic: Display classifier filters using ethtool

This series adds ethtool support to show classifier filters added by driver.

v2:
The patch 1/2 removes the $ifdef's around the filter structure. Making it
available always. So that .get_rxnfc() can be implimented without any #ifdefs
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoenic: Add ethtool support to show classifier filters added by the driver
Govindarajulu Varadarajan [Mon, 21 Jul 2014 11:52:18 +0000 (17:22 +0530)]
enic: Add ethtool support to show classifier filters added by the driver

This patch impliments ethtool_ops->get_rxnfc() to display the classifier
filter added by the driver.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoenic: remove #ifdef CONFIG_RFS_ACCEL around filter structures
Govindarajulu Varadarajan [Mon, 21 Jul 2014 11:52:17 +0000 (17:22 +0530)]
enic: remove #ifdef CONFIG_RFS_ACCEL around filter structures

This patch removes the #ifdef CONFIG_RFS_ACCEL around the classifier filter
structures. This makes the filter structures available when CONFIG_RFS_ACCEL = n.

Introduce enic_rfs_timer_start() & enic_rfs_timer_stop() to start/stop the
timer. These two functions are nop when CONFIG_RFS_ACCEL = n.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoaf_iucv: avoid path quiesce of severed path in shutdown()
Ursula Braun [Mon, 21 Jul 2014 10:54:44 +0000 (12:54 +0200)]
af_iucv: avoid path quiesce of severed path in shutdown()

An af_iucv stress test showed -EPIPE results for sendmsg()
calls. They are caused by quiescing a path even though it has
been already severed by peer. For IUCV transport shutdown()
consists of 2 steps:
(1) sending the shutdown message to peer
(2) quiescing the iucv path
If the iucv path between these 2 steps is severed due to peer
closing the path, the quiesce step is no longer needed.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reported-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoqeth: Display adjacent switch attributes
Stefan Raspl [Mon, 21 Jul 2014 10:54:43 +0000 (12:54 +0200)]
qeth: Display adjacent switch attributes

Add support to display the adjacent switch port's forwarding
attributes. Currently supports info on forwarding modes '802.1'
and 'rr' (reflective relay).

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge
David S. Miller [Tue, 22 Jul 2014 03:19:09 +0000 (20:19 -0700)]
Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge

Antonio Quartulli says:

====================
pull request [net]: batman-adv 20140721

here you have two fixes that we have been testing for quite some time
(this is why they arrived a bit late in the rc cycle).

Patch 1) ensures that BLA packets get dropped and not forwarded to the
mesh even if they reach batman-adv within QinQ frames. Forwarding them
into the mesh means messing up with the TT database of other nodes which
can generate all kind of unexpected behaviours during route computation.

Patch 2) avoids a couple of race conditions triggered upon fast VLAN
deletion-addition. Such race conditions are pretty dangerous because
they not only create inconsistencies in the TT database of the nodes
in the network, but such scenario is also unrecoverable (unless
nodes are rebooted).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoipv4: fix buffer overflow in ip_options_compile()
Eric Dumazet [Mon, 21 Jul 2014 05:17:42 +0000 (07:17 +0200)]
ipv4: fix buffer overflow in ip_options_compile()

There is a benign buffer overflow in ip_options_compile spotted by
AddressSanitizer[1] :

Its benign because we always can access one extra byte in skb->head
(because header is followed by struct skb_shared_info), and in this case
this byte is not even used.

[28504.910798] ==================================================================
[28504.912046] AddressSanitizer: heap-buffer-overflow in ip_options_compile
[28504.913170] Read of size 1 by thread T15843:
[28504.914026]  [<ffffffff81802f91>] ip_options_compile+0x121/0x9c0
[28504.915394]  [<ffffffff81804a0d>] ip_options_get_from_user+0xad/0x120
[28504.916843]  [<ffffffff8180dedf>] do_ip_setsockopt.isra.15+0x8df/0x1630
[28504.918175]  [<ffffffff8180ec60>] ip_setsockopt+0x30/0xa0
[28504.919490]  [<ffffffff8181e59b>] tcp_setsockopt+0x5b/0x90
[28504.920835]  [<ffffffff8177462f>] sock_common_setsockopt+0x5f/0x70
[28504.922208]  [<ffffffff817729c2>] SyS_setsockopt+0xa2/0x140
[28504.923459]  [<ffffffff818cfb69>] system_call_fastpath+0x16/0x1b
[28504.924722]
[28504.925106] Allocated by thread T15843:
[28504.925815]  [<ffffffff81804995>] ip_options_get_from_user+0x35/0x120
[28504.926884]  [<ffffffff8180dedf>] do_ip_setsockopt.isra.15+0x8df/0x1630
[28504.927975]  [<ffffffff8180ec60>] ip_setsockopt+0x30/0xa0
[28504.929175]  [<ffffffff8181e59b>] tcp_setsockopt+0x5b/0x90
[28504.930400]  [<ffffffff8177462f>] sock_common_setsockopt+0x5f/0x70
[28504.931677]  [<ffffffff817729c2>] SyS_setsockopt+0xa2/0x140
[28504.932851]  [<ffffffff818cfb69>] system_call_fastpath+0x16/0x1b
[28504.934018]
[28504.934377] The buggy address ffff880026382828 is located 0 bytes to the right
[28504.934377]  of 40-byte region [ffff880026382800ffff880026382828)
[28504.937144]
[28504.937474] Memory state around the buggy address:
[28504.938430]  ffff880026382300: ........ rrrrrrrr rrrrrrrr rrrrrrrr
[28504.939884]  ffff880026382400ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
[28504.941294]  ffff880026382500: .....rrr rrrrrrrr rrrrrrrr rrrrrrrr
[28504.942504]  ffff880026382600ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
[28504.943483]  ffff880026382700ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
[28504.944511] >ffff880026382800: .....rrr rrrrrrrr rrrrrrrr rrrrrrrr
[28504.945573]                         ^
[28504.946277]  ffff880026382900ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
[28505.094949]  ffff880026382a00ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
[28505.096114]  ffff880026382b00ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
[28505.097116]  ffff880026382c00ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
[28505.098472]  ffff880026382d00ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
[28505.099804] Legend:
[28505.100269]  f - 8 freed bytes
[28505.100884]  r - 8 redzone bytes
[28505.101649]  . - 8 allocated bytes
[28505.102406]  x=1..7 - x allocated bytes + (8-x) redzone bytes
[28505.103637] ==================================================================

[1] https://code.google.com/p/address-sanitizer/wiki/AddressSanitizerForKernel

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: only update UMAC_CMD if something changed
Florian Fainelli [Tue, 22 Jul 2014 00:42:39 +0000 (17:42 -0700)]
net: bcmgenet: only update UMAC_CMD if something changed

The link adjustment callback can be called as frequently as desired
by the PHY library, as such, let's avoid doing a Read/Modify/Write
sequence if nothing changed, since these register accesses can be
expensive.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'bcmgenet-next'
David S. Miller [Mon, 21 Jul 2014 23:04:37 +0000 (16:04 -0700)]
Merge branch 'bcmgenet-next'

Florian Fainelli says:

====================
net: bcmgenet: PM and Wake-on-LAN

This patchset brings S2/S3 Power Management support to the GENET driver
as well as Wake-on-LAN using Magic Packets with or without SecureOn
passwords.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: hook ethtool set/get_wol operations
Florian Fainelli [Mon, 21 Jul 2014 22:29:29 +0000 (15:29 -0700)]
net: bcmgenet: hook ethtool set/get_wol operations

Now that Wake-on-LAN support mode is fully integrated into the driver,
allow an user to query and configure Wake-on-LAN in the driver.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: suspend and resume from Wake-on-LAN
Florian Fainelli [Mon, 21 Jul 2014 22:29:28 +0000 (15:29 -0700)]
net: bcmgenet: suspend and resume from Wake-on-LAN

Update bcmgenet_suspend() to prepare the hardware for being put into
Wake-on-LAN mode if the device can wakeup the system, and Wake-on-LAN is
enabled. Whether we resume from Wake-on-LAN or not, make sure that
bcmgenet_resume() disables the UniMAC MagicPacket matching mode and puts
the hardware in a state where it can receive all incoming packets.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: fix bcmgenet_wol_resume
Florian Fainelli [Mon, 21 Jul 2014 22:29:27 +0000 (15:29 -0700)]
net: bcmgenet: fix bcmgenet_wol_resume

bcmgenet_wol_resume() will create an unbalanced clock state for the
wol_clk clock pointer since everywhere else in the code, we always call
clk_prepare_enable() and clk_disable_unprepare(). This function also
calls init_umac() which is neither correct nor necessary since
bcmgenet_resume() and bcmgenet_open() already does that.

Finally calling bcmgenet_wol_resume() in bcmgenet_open() is not correct,
since the interface would not have been able to put us in Wake-on-LAN
mode if it was not UP before.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: handle UMAC_IRQ_MPD_R interrupt bit
Florian Fainelli [Mon, 21 Jul 2014 22:29:26 +0000 (15:29 -0700)]
net: bcmgenet: handle UMAC_IRQ_MPD_R interrupt bit

Handle UMAC_IRQ_MPD_R interrupt bit in our workqueue to make sure that
we properly re-configure the GENET adapter from Wake-on-LAN.

bcmgenet_power_up() makes sure that we will not leave the UniMAC
hardware in MagicPacket matching mode, since that would prevent any
other packet from being received.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: handle GENET_POWER_WOL_MAGIC
Florian Fainelli [Mon, 21 Jul 2014 22:29:25 +0000 (15:29 -0700)]
net: bcmgenet: handle GENET_POWER_WOL_MAGIC

Update bcmgenet_power_{up,down} to handle the case where the adapter has
been suspend respectively resumed from Wake-on-LAN using MagicPackets.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: add Wake-on-LAN support code
Florian Fainelli [Mon, 21 Jul 2014 22:29:24 +0000 (15:29 -0700)]
net: bcmgenet: add Wake-on-LAN support code

Add all the required code to program the GENET hardware to enter
Wake-on-LAN mode and wake using MagicPackets with or without SecureOn
password.

This code is hooked to the build system, but is not yet referenced from
ethtool or the main bcmgenet driver.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: request Wake-on-LAN interrupt
Florian Fainelli [Mon, 21 Jul 2014 22:29:23 +0000 (15:29 -0700)]
net: bcmgenet: request Wake-on-LAN interrupt

Attempt to the request the Wake-on-LAN interrupt bit, and if successful,
advertise wakeup capability instead of doing this unconditionnally.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: add suspend/resume callbacks
Florian Fainelli [Mon, 21 Jul 2014 22:29:22 +0000 (15:29 -0700)]
net: bcmgenet: add suspend/resume callbacks

Implement suspend/resume callbacks in the GENET driver. This makes sure
that we de-initialize and re-initialize the hardware correctly before
entering suspend and when resuming.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: modularize bcmgenet_{open,close}
Florian Fainelli [Mon, 21 Jul 2014 22:29:21 +0000 (15:29 -0700)]
net: bcmgenet: modularize bcmgenet_{open,close}

Introduce a bunch of helper functions: bcmgenet_netif_start,
bcmgenet_netif_stop and bcmgenet_intr_disable to help reuse code that is
going to be necessary for suspend/resume.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: add umac_enable_set helper
Florian Fainelli [Mon, 21 Jul 2014 22:29:20 +0000 (15:29 -0700)]
net: bcmgenet: add umac_enable_set helper

Factor the code touching the UniMAC RX/TX enable bits since we are going
to re-use it for implementing suspend/resume.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: bcmgenet: remove wol_enabled conditional code
Florian Fainelli [Mon, 21 Jul 2014 22:29:19 +0000 (15:29 -0700)]
net: bcmgenet: remove wol_enabled conditional code

Checking for wol_enabled in bcmgenet_close() is bogus, since no other
code places set priv->wol_enabled. Remove that as it will conflict with
the upcoming and functional Wake-on-LAN implementation.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Mon, 21 Jul 2014 18:44:34 +0000 (11:44 -0700)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "A series of driver fixes:
   - fix DVB-S tuning with tda1071
   - fix tuner probe on af9035 when the device has a bad eeprom
   - some fixes for the new si2168/2157 drivers
   - one Kconfig build fix (for omap4iss)
   - fixes at vpif error path
   - don't lock saa7134 ioctl at driver's base core level, as it now
     uses V4L2 and VB2 locking schema
   - fix audio at hdpvr driver
   - fix the aspect ratio at the digital timings table
   - one new USB ID (at gspca_pac7302): Genius i-Look 317 webcam"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] gspca_pac7302: Add new usb-id for Genius i-Look 317
  [media] tda10071: fix returned symbol rate calculation
  [media] tda10071: fix spec inversion reporting
  [media] tda10071: add missing DVB-S2/PSK-8 FEC AUTO
  [media] tda10071: force modulation to QPSK on DVB-S
  [media] hdpvr: fix two audio bugs
  [media] davinci: vpif: missing unlocks on error
  [media] af9035: override tuner id when bad value set into eeprom
  [media] saa7134: use unlocked_ioctl instead of ioctl
  [media] media: v4l2-core: v4l2-dv-timings.c: Cleaning up code wrong value used in aspect ratio
  [media] si2168: firmware download fix
  [media] si2157: add one missing parenthesis
  [media] si2168: add one missing parenthesis
  [media] staging: tighten omap4iss dependencies

10 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Mon, 21 Jul 2014 18:31:17 +0000 (11:31 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Final block fixes for 3.16

  Four small fixes that should go into 3.16, have been queued up for a
  bit and delayed due to vacation and other euro duties.  But here they
  are.  The pull request contains:

   - Fix for a reported crash with shared tagging on SCSI from Christoph

   - A regression fix for drbd.  From Lars Ellenberg.

   - Hooking up the compat ioctl for BLKZEROOUT, which requires no
     translation.  From Mikulas.

- A fix for a regression where we woud crash on queue exit if the
  root_blkg is gone/not there. From Tejun"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: provide compat ioctl for BLKZEROOUT
  blkcg: don't call into policy draining if root_blkg is already gone
  drbd: fix regression 'out of mem, failed to invoke fence-peer helper'
  block: don't assume last put of shared tags is for the host

10 years agoMerge branch 'for-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
Linus Torvalds [Mon, 21 Jul 2014 18:25:44 +0000 (11:25 -0700)]
Merge branch 'for-3.16-fixes' of git://git./linux/kernel/git/tj/libata

Pull libata fixes from Tejun Heo:
 "Late libata fixes.

  The most important one is from Kevin Hao which makes sure that libata
  only allocates tags inside the max tag number the controller supports.
  libata always had this problem but the recent tag allocation change
  and addition of support for sata_fsl which only supports queue depth
  of 16 exposed the issue.

  Hans de Goede agreed to become the maintainer of libahci_platform
  which is under higher than usual development pressure from all the new
  controllers popping up from the ARM world"

* 'for-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  ahci: add support for the Promise FastTrak TX8660 SATA HBA (ahci mode)
  drivers/ata/pata_ep93xx.c: use signed int type for result of platform_get_irq()
  libata: EH should handle AMNF error condition as a media error
  libata: support the ata host which implements a queue depth less than 32
  MAINTAINERS: Add Hans de Goede as ahci-platform maintainer

10 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Mon, 21 Jul 2014 18:19:18 +0000 (11:19 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "These are mostly PPC changes for 3.16-new things.  However, there is
  an x86 change too and it is a regression from 3.14.  As it only
  affects nested virtualization and there were other changes in this
  area in 3.16, I am not nominating it for 3.15-stable"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Check for nested events if there is an injectable interrupt
  KVM: PPC: RTAS: Do byte swaps explicitly
  KVM: PPC: Book3S PR: Fix ABIv2 on LE
  KVM: PPC: Assembly functions exported to modules need _GLOBAL_TOC()
  PPC: Add _GLOBAL_TOC for 32bit
  KVM: PPC: BOOK3S: HV: Use base page size when comparing against slb value
  KVM: PPC: Book3E: Unlock mmu_lock when setting caching atttribute

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Mon, 21 Jul 2014 18:18:31 +0000 (11:18 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Martin Schwidefsky:
 "A couple of last minute bug fixes for 3.16, including a fix for ptrace
  to close a hole which allowed a user space program to write to the
  kernel address space"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: fix restore of invalid floating-point-control
  s390/zcrypt: improve device probing for zcrypt adapter cards
  s390/ptrace: fix PSW mask check
  s390/MSI: Use standard mask and unmask funtions
  s390/3270: correct size detection with the read-partition command
  s390: require mvcos facility, not tod clock steering facility

10 years agotracing: Fix wraparound problems in "uptime" trace clock
Tony Luck [Fri, 18 Jul 2014 18:43:01 +0000 (11:43 -0700)]
tracing: Fix wraparound problems in "uptime" trace clock

The "uptime" trace clock added in:

    commit 8aacf017b065a805d27467843490c976835eb4a5
    tracing: Add "uptime" trace clock that uses jiffies

has wraparound problems when the system has been up more
than 1 hour 11 minutes and 34 seconds. It converts jiffies
to nanoseconds using:
        (u64)jiffies_to_usecs(jiffy) * 1000ULL
but since jiffies_to_usecs() only returns a 32-bit value, it
truncates at 2^32 microseconds.  An additional problem on 32-bit
systems is that the argument is "unsigned long", so fixing the
return value only helps until 2^32 jiffies (49.7 days on a HZ=1000
system).

Avoid these problems by using jiffies_64 as our basis, and
not converting to nanoseconds (we do convert to clock_t because
user facing API must not be dependent on internal kernel
HZ values).

Link: http://lkml.kernel.org/p/99d63c5bfe9b320a3b428d773825a37095bf6a51.1405708254.git.tony.luck@intel.com
Cc: stable@vger.kernel.org # 3.10+
Fixes: 8aacf017b065 "tracing: Add "uptime" trace clock that uses jiffies"
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
10 years agobatman-adv: fix TT VLAN inconsistency on VLAN re-add
Antonio Quartulli [Thu, 8 May 2014 15:13:15 +0000 (17:13 +0200)]
batman-adv: fix TT VLAN inconsistency on VLAN re-add

When a VLAN interface (on top of batX) is removed and
re-added within a short timeframe TT does not have enough
time to properly cleanup. This creates an internal TT state
mismatch as the newly created softif_vlan will be
initialized from scratch with a TT client count of zero
(even if TT entries for this VLAN still exist). The
resulting TT messages are bogus due to the counter / tt
client listing mismatch, thus creating inconsistencies on
every node in the network

To fix this issue destroy_vlan() has to not free the VLAN
object immediately but it has to be kept alive until all the
TT entries for this VLAN have been removed. destroy_vlan()
still removes the sysfs folder so that the user has the
feeling that everything went fine.

If the same VLAN is re-added before the old object is free'd,
then the latter is resurrected and re-used.

Implement such behaviour by increasing the reference counter
of a softif_vlan object every time a new local TT entry for
such VLAN is created and remove the object from the list
only when all the TT entries have been destroyed.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
10 years agobatman-adv: drop QinQ claim frames in bridge loop avoidance
Simon Wunderlich [Mon, 23 Jun 2014 13:55:36 +0000 (15:55 +0200)]
batman-adv: drop QinQ claim frames in bridge loop avoidance

Since bridge loop avoidance only supports untagged or simple 802.1q
tagged VLAN claim frames, claim frames with stacked VLAN headers (QinQ)
should be detected and dropped. Transporting the over the mesh may cause
problems on the receivers, or create bogus entries in the local tt
tables.

Reported-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
10 years agodns_resolver: Null-terminate the right string
Ben Hutchings [Sun, 20 Jul 2014 23:06:48 +0000 (00:06 +0100)]
dns_resolver: Null-terminate the right string

*_result[len] is parsed as *(_result[len]) which is not at all what we
want to touch here.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: 84a7c0b1db1c ("dns_resolver: assure that dns_query() result is null-terminated")
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: mvpp2: Fix error return code in mvpp2_probe()
Wei Yongjun [Sun, 20 Jul 2014 14:02:43 +0000 (22:02 +0800)]
net: mvpp2: Fix error return code in mvpp2_probe()

Fix to return -ENODEV from the no ports enabled error handling
case instead of 0.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: mvpp2: Remove redundant dev_err call in mvpp2_port_probe()
Wei Yongjun [Sun, 20 Jul 2014 13:57:17 +0000 (21:57 +0800)]
net: mvpp2: Remove redundant dev_err call in mvpp2_port_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agotipc: fix sparse non static symbol warnings
Wei Yongjun [Sun, 20 Jul 2014 05:14:28 +0000 (13:14 +0800)]
tipc: fix sparse non static symbol warnings

Fixes the following sparse warnings:

net/tipc/socket.c:545:5: warning:
 symbol 'tipc_sk_proto_rcv' was not declared. Should it be static?
net/tipc/socket.c:2015:5: warning:
 symbol 'tipc_ioctl' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'break_after_return'
David S. Miller [Mon, 21 Jul 2014 04:30:28 +0000 (21:30 -0700)]
Merge branch 'break_after_return'

Fabian Frederick says:

====================
drivers/net: remove unnecessary break after return

Second patchset after "remove unnecessary break after goto" addressing break redundancy on drivers/net branch
(suggested by Joe Perches)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agops3_gelic: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:30:48 +0000 (16:30 +0200)]
ps3_gelic: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoatl1c: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:54 +0000 (16:27 +0200)]
atl1c: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoatlx: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:53 +0000 (16:27 +0200)]
atlx: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoatl1e: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:52 +0000 (16:27 +0200)]
atl1e: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoucc_geth: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:51 +0000 (16:27 +0200)]
ucc_geth: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoniu: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:50 +0000 (16:27 +0200)]
niu: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agosis900: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:49 +0000 (16:27 +0200)]
sis900: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobna: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:48 +0000 (16:27 +0200)]
bna: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: tulip: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:47 +0000 (16:27 +0200)]
net: tulip: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years ago8390: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:46 +0000 (16:27 +0200)]
8390: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoigb: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:27:45 +0000 (16:27 +0200)]
igb: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoe1000e: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:25:20 +0000 (16:25 +0200)]
e1000e: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoixgbe: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:25:19 +0000 (16:25 +0200)]
ixgbe: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoe1000: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:25:18 +0000 (16:25 +0200)]
e1000: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agocarl9170: remove unnecessary break after return
Fabian Frederick [Sun, 20 Jul 2014 14:25:16 +0000 (16:25 +0200)]
carl9170: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>