linux-2.6-microblaze.git
8 years agoath10k: add debugfs support for Per STA total rx duration
Mohammed Shafi Shajakhan [Wed, 13 Jan 2016 15:46:34 +0000 (21:16 +0530)]
ath10k: add debugfs support for Per STA total rx duration

Add debugfs support for per client total rx duration, track this
via the report of Peer stats rx duration reported for every 500ms

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: enable periodic peer stats update
Mohammed Shafi Shajakhan [Wed, 13 Jan 2016 15:46:33 +0000 (21:16 +0530)]
ath10k: enable periodic peer stats update

Register for 500ms as periodic peer stats update period,
and parameters like rx_duration that needs to be tracked
in host can be achieved by this provision, also periodic
stats update is the future of fw_stats and shall be extended
for pdev / vdev stats irrespecitive PEER_STATS service is enabled
or not

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
[kvalo@qca.qualcomm.com: fix a checkpatch warning]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: provision to support periodic peer stats update
Mohammed Shafi Shajakhan [Wed, 13 Jan 2016 15:46:32 +0000 (21:16 +0530)]
ath10k: provision to support periodic peer stats update

Enable support for periodic peer stats update when peer stats
service is enabled. The host to update the peer stats received
from the firmware periodically, since firmware will reset this to zero
after sometime (due to memory constraints)

While enabling periodic peer / vdev stats cleanup the existing
list in debugfs if max limit is reached, so that the new stats is
updated.

Ideally speaking based on 'Michal Kazior's' suggestion
we need to completely move to periodic update of all the stats making
the 'ping - pong' method obselete. This requires a bit of re-work and
some testing as well, also confirmation regarding backward comptability
for various firmware and chipsets. Hence allow periodic update only
for peer_stats.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: rename few function names of firmware stats
Mohammed Shafi Shajakhan [Wed, 13 Jan 2016 15:46:31 +0000 (21:16 +0530)]
ath10k: rename few function names of firmware stats

Prerequisite patch to address checkpatch errors for the next patch
in this series, this function names are bit too long, make it short

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: cleanup setting pdev paramaters
Mohammed Shafi Shajakhan [Wed, 13 Jan 2016 15:46:30 +0000 (21:16 +0530)]
ath10k: cleanup setting pdev paramaters

Replace the local variable 'burst_enable' with 'param'
for mapping and setting pdev paraemeters and with this patch
pretty easy to extend support for new parameters adhering to
linux kernel coding guidelines

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: fix naming Peer stats rssi_changed field in 10.2.4
Mohammed Shafi Shajakhan [Wed, 13 Jan 2016 15:46:29 +0000 (21:16 +0530)]
ath10k: fix naming Peer stats rssi_changed field in 10.2.4

Fix naming of peer stats rssi_changed field in 10.2.4 to make it
more readable. As of now this field is not used, but necessary to
pull in fw_stats with appropriate length.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: add support for parsing per STA rx_duration for 10.2.4
Mohammed Shafi Shajakhan [Wed, 13 Jan 2016 15:46:28 +0000 (21:16 +0530)]
ath10k: add support for parsing per STA rx_duration for 10.2.4

Add support for parsing 'peer_rx_duration' as part
of 10.2.4 peer_stats. Also register PEER_STATS service
for parsing 'rx_duration' (and for any new fields to be added
as part of peer_stats). Have checks for backward compatibility with
older 10.2.4 firmware incase PEER_STATS service is not enabled

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: prevent txrx running for too long
Michal Kazior [Wed, 13 Jan 2016 13:52:52 +0000 (14:52 +0100)]
ath10k: prevent txrx running for too long

On multicore systems it was possible for the txrx
tasklet to keep on running for long periods of
time on a single CPU due to tx completion
processing. Another CPU could feed the running
tasklet for an indefinite amount of time.

The tasklet is now guaranteed to run a finite
amount of time and is limited by HTT CE Rx ring
depth.

This improves behavior when RPS is used on target
system and might improve TCP handling as well.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agodt: bindings: add bindings for ipq4019 wifi block
Raja Mani [Wed, 13 Jan 2016 05:56:44 +0000 (11:26 +0530)]
dt: bindings: add bindings for ipq4019 wifi block

Add device tree binding documentation details for wifi block present
in Qualcomm IPQ4019 SoC into "qcom,ath10k.txt".

Right now, ath10k wireless driver has support for PCI based wlan devices.
There is a plan to extend ath10k driver to support wifi devices which are
connected over AHB as well (enumeration will happen via device tree node).
For AHB based devices (ie, ipq4019), all wifi properties are supplied via
device tree (including irq, reg addr, cal data,etc).

Signed-off-by: Raja Mani <rmani@qti.qualcomm.com>
Acked-by: Rob Herring <robh@kernel.org>
[kvalo@qca.qualcomm.com: fixed typos noticed by Rob]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agobrcmfmac: Do not handle link downs for ibss.
Hante Meuleman [Tue, 5 Jan 2016 10:05:50 +0000 (11:05 +0100)]
brcmfmac: Do not handle link downs for ibss.

Sometimes on module reload and reconnect to ibss a deauth from
other station can be received. This is treated as a link down but
for ibss this is wrong. It will close the interface and no data
is possible. Ignore the firmware generated link down events in
ibss mode, as ibss is always teared down by cfg80211.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: use jiffies for timeout in btcoex
Arend van Spriel [Tue, 5 Jan 2016 10:05:49 +0000 (11:05 +0100)]
brcmfmac: use jiffies for timeout in btcoex

The btcoex uses a timeout which was in milliseconds and got
converted to jiffies upon using timer api. Instead, convert
it to jiffies and treat it as such further.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: use msecs_to_jiffies() in macro definitions
Arend van Spriel [Tue, 5 Jan 2016 10:05:48 +0000 (11:05 +0100)]
brcmfmac: use msecs_to_jiffies() in macro definitions

Instead to having macro definition for millisecond timeout have
the definition directly in jiffies. This makes the unit of the
value immediately clear and may result in code that is bit more
compact.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: change brcmf_sdio_wd_timer() prototype
Arend van Spriel [Tue, 5 Jan 2016 10:05:47 +0000 (11:05 +0100)]
brcmfmac: change brcmf_sdio_wd_timer() prototype

The function brcmf_sdio_wd_timer() has wdtick parameter. However, it
is only called with two values and as such the parameter is replaced
with boolean value indicating the timer should be active or not.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Reshuffle functions to avoid forward declarations
Hante Meuleman [Tue, 5 Jan 2016 10:05:46 +0000 (11:05 +0100)]
brcmfmac: Reshuffle functions to avoid forward declarations

Function prototype forward declarations are to be avoided. This
patch shuffles some of the functions so the forward declarations
can be removed.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Add wowl net detect support
Hante Meuleman [Tue, 5 Jan 2016 10:05:45 +0000 (11:05 +0100)]
brcmfmac: Add wowl net detect support

With wowl net detect it becomes possible to scan for specific ssids
and wakeup once found.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoMerge tag 'iwlwifi-next-for-kalle-2016-01-07_2' of https://git.kernel.org/pub/scm...
Kalle Valo [Thu, 7 Jan 2016 21:04:07 +0000 (23:04 +0200)]
Merge tag 'iwlwifi-next-for-kalle-2016-01-07_2' of https://git./linux/kernel/git/iwlwifi/iwlwifi-next

* bug fixes and improvements for firmware debug system (Golan and myself)
* fixes for D0i3 (Eliad)
* prevent muliple stations with the same MAC address
* advertise support for Rx A-MSDU in A-MPDU
* scan related fixes
* support -20.ucode
* fix WoWLAN for iwldvm
* preparations towards multiple Rx queues
* platform power improvements for GO mode when no clients are associated

8 years agoMerge ath-next from ath.git
Kalle Valo [Thu, 7 Jan 2016 20:54:46 +0000 (22:54 +0200)]
Merge ath-next from ath.git

No major changes to list.

8 years agoiwlwifi: pcie: properly configure the debug buffer size for 8000
Emmanuel Grumbach [Tue, 5 Jan 2016 13:25:43 +0000 (15:25 +0200)]
iwlwifi: pcie: properly configure the debug buffer size for 8000

8000 device family has a new debug engine that needs to be
configured differently than 7000's.
The debug engine's DMA works in chunks of memory and the
size of the buffer really means the start of the last
chunk. Since one chunk is 256-byte long, we should
configure the device to write to buffer_size - 256.
This fixes a situation were the device would write to
memory it is not allowed to access.

CC: <stable@vger.kernel.org> [4.1+]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: fix memory leaks in error paths upon fw error dump
Emmanuel Grumbach [Tue, 5 Jan 2016 07:35:21 +0000 (09:35 +0200)]
iwlwifi: mvm: fix memory leaks in error paths upon fw error dump

When iwl_mvm_fw_error_dump fails, it needs to clear the
state in mvm, which includes:
* clear IWL_MVM_STATUS_DUMPING_FW_LOG
* set mvm->fw_dump_trig to NULL
* free the description

While at it, remove a NULL check in
iwl_mvm_free_fw_dump_desc since kfree is NULL safe.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: constify the parameters of a few functions in fw-dbg.c
Emmanuel Grumbach [Tue, 5 Jan 2016 07:14:08 +0000 (09:14 +0200)]
iwlwifi: mvm: constify the parameters of a few functions in fw-dbg.c

The debug functions of fw-dbg.c don't really need to modify
the trigger and the description they receive as a parameter.
Constify the pointers.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: check minimum temperature notification length
Johannes Berg [Tue, 5 Jan 2016 15:16:31 +0000 (16:16 +0100)]
iwlwifi: mvm: check minimum temperature notification length

This notification will be extended with extra data, so just
check that it has a minimum length, not the exact length;
we might later add handling for the extra fields added and
have more code to handle both versions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: initialize gtkdata->mvm correctly
Eliad Peller [Thu, 31 Dec 2015 13:19:32 +0000 (15:19 +0200)]
iwlwifi: mvm: initialize gtkdata->mvm correctly

gtkdata->mvm wasn't set in iwl_mvm_d0i3_update_keys,
resulting in kernel panic in some flows (when mvm
is actually used...)

Fixes: a3f7ba5c8825 ("iwlwifi: update key params on d0i3 entrance/exit")
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: check PN for CCMP/GCMP in the driver
Johannes Berg [Sun, 6 Dec 2015 12:58:08 +0000 (14:58 +0200)]
iwlwifi: mvm: check PN for CCMP/GCMP in the driver

As we're working on multi-queue RX, we want to parallelise checking
the PN in order to avoid having to serialise the RX processing.

It may seem that doing parallel PN checking is insecure, but it turns
out to be OK because queue assignment is done based on the data in the
frame (IP/TCP) and thus cannot be manipulated by an attacker, since
the data is encrypted and must first have been decrypted successfully.

There are some corner cases, in particular when the peer starts using
fragmentation which redirects the packet to the default queue. However
this redirection is remembered (for the STA, per TID) and thus cannot
be exploited by an attacker either.

Leave checking on the default queue (queue 0) to mac80211, since we
get fragmented packets there and those are subject to stricter checks
during reassembly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: don't ask beacons when P2P GO vif and no assoc sta
Ayala Beker [Sun, 20 Dec 2015 07:27:50 +0000 (09:27 +0200)]
iwlwifi: mvm: don't ask beacons when P2P GO vif and no assoc sta

The commit below called iwl_mvm_mac_ctxt_changed() to handle
a case that the vif is a P2P GO.
However iwl_mvm_mac_ctxt_cmd_go() ignores the number of
associated stations and asks the FW to pass beacons anyways.

Fix this by checking ap_assoc_sta_count parameter, in iwl_mvm_mac_ctxt_cmd_go()
as well, and ask the FW to pass beacons only when there's
at least one associated station.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: prevent multiple stations with the same address
Johannes Berg [Thu, 24 Sep 2015 16:14:55 +0000 (18:14 +0200)]
iwlwifi: mvm: prevent multiple stations with the same address

As the device (and parts of the driver) cannot deal with having the
same MAC address for two stations (on two virtual interfaces), add
some explicit code to prevent this case.

Note that in practice this cannot happen since the device doesn't
support operating with two AP/GO interfaces at the same time either,
and other scenarios for this are, while not impossible, not going to
happen in practice.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: remove useless WARN_ON and rely on cfg80211's combination
Emmanuel Grumbach [Thu, 24 Dec 2015 06:48:46 +0000 (08:48 +0200)]
iwlwifi: mvm: remove useless WARN_ON and rely on cfg80211's combination

We advertise one STATION vif only, so this just can't
happen. Remove this useless WARN_ON.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: support A-MSDU in A-MPDU
Johannes Berg [Mon, 21 Sep 2015 12:09:17 +0000 (14:09 +0200)]
iwlwifi: mvm: support A-MSDU in A-MPDU

Since A-MPDU deaggregation is done in hardware, and A-MSDU deaggregation
is done in software, there's no reason not to support A-MSDU in A-MPDU;
set the flag to support it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: add a non-trigger window to fw dbg triggers
Golan Ben-Ami [Wed, 25 Nov 2015 09:44:57 +0000 (11:44 +0200)]
iwlwifi: mvm: add a non-trigger window to fw dbg triggers

Allow the user to configure a non-trigger session - a window
between triggers in which the driver won't collect fw debug data.
This can be useful when the frequent collection of fw data
has an impact on the performance, such as debugging
tx flows.

Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: dump the radio registers when the firmware crashes
Emmanuel Grumbach [Mon, 28 Dec 2015 13:22:28 +0000 (15:22 +0200)]
iwlwifi: mvm: dump the radio registers when the firmware crashes

Dumping the content of the radio registers greatly helps
to debug PHY issues, which can lead to TFD queue hang.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: fix extended dwell time
David Spinadel [Sun, 3 Jan 2016 15:08:32 +0000 (17:08 +0200)]
iwlwifi: mvm: fix extended dwell time

FW adds 10 msec for every dwell time in low band, so we need
to set 10 msec less.
Don't use extended dwell time when fragmented scan is needed
because FW adds 3 msec per probe and it can easily exceed
max out of channel time.

Fixes: c3e230b167a9 ("iwlwifi: mvm: add extended dwell time")
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: nvm: fix loading default NVM file
Oren Givon [Wed, 25 Nov 2015 09:17:41 +0000 (11:17 +0200)]
iwlwifi: nvm: fix loading default NVM file

Fix loading the default NVM file, in the case where the
requested NVM file isn't found in the file system.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: bump max API to 20
Emmanuel Grumbach [Tue, 5 Jan 2016 14:30:04 +0000 (16:30 +0200)]
iwlwifi: mvm: bump max API to 20

7265D and up are now able to handle -20.ucode.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: set max firmware version of 7265 to 17
Emmanuel Grumbach [Mon, 4 Jan 2016 08:19:17 +0000 (10:19 +0200)]
iwlwifi: set max firmware version of 7265 to 17

Just like 7260, 7265 will not have firmware releases newer
than iwlwifi-7265-17.ucode. 7265D is still supported in
latest firmware releases.

Fixes: 628a2918afe4 ("iwlwifi: separate firmware version for 7260 devices")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: reset mvm->scan_type when firmware is started
Emmanuel Grumbach [Sun, 3 Jan 2016 20:23:40 +0000 (22:23 +0200)]
iwlwifi: mvm: reset mvm->scan_type when firmware is started

If we don't reset the scan type when the firmware is
started, we will think the firmware is still configured
after the interface has been brought down. When we will
bring it up again, we will not configure the scan type
in firmware and it will crash with the following assert:

0x0000100A | ADVANCED_SYSASSERT

Fixes: 355346ba3050 ("iwlwifi: mvm: configure scheduled scan according to traffic conditions")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: change mcc update API
Matti Gottlieb [Mon, 4 Jan 2016 11:38:41 +0000 (13:38 +0200)]
iwlwifi: mvm: change mcc update API

New functionality for testing that is not relevant for
this driver has been added. This required an API change.

Add new cmd & response versions for the MCC update cmd & response.
Add new TLV indicating that the FW is using the new API.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: mvm: let the firmware choose the antenna for beacons
Emmanuel Grumbach [Sun, 13 Dec 2015 07:35:30 +0000 (09:35 +0200)]
iwlwifi: mvm: let the firmware choose the antenna for beacons

The firmware knows better what antenna to choose.
Old firmware still need the setting, so use a flag to know
if the driver should choose the antenna or if the firmware
can do it iself.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: update and fix 7265 series PCI IDs
Oren Givon [Thu, 17 Dec 2015 12:17:00 +0000 (14:17 +0200)]
iwlwifi: update and fix 7265 series PCI IDs

Update and fix some 7265 PCI IDs entries.

CC: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agoiwlwifi: dvm: fix WoWLAN
Emmanuel Grumbach [Sun, 20 Dec 2015 06:45:40 +0000 (08:45 +0200)]
iwlwifi: dvm: fix WoWLAN

My commit below introduced a mutex in the transport to
prevent concurrent operations. To do so, it added a flag
(is_down) to make sure the transport is in the right state.
This uncoverred an bug that didn't cause any harm until
now: iwldvm calls stop_device and then starts the firmware
without calling start_hw in between. While this flow is
fine from the device configuration point of view (register,
etc...), it is now forbidden by the new is_down flag.
This led to this error to appear:
iwlwifi 0000:05:00.0: Can't start_fw since the HW hasn't been started
and the suspend would fail.

This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=109591

CC: <stable@vger.kernel.org> [4.3+]
Reported-by: Bogdan Bogush <bogdan.s.bogush@gmail.com>
Fixes=fa9f3281cbb1 ("iwlwifi: pcie: lock start_hw / start_fw / stop_device")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
8 years agowcn36xx: split DMA mask register writing.
Fengwei Yin [Sun, 20 Dec 2015 13:20:41 +0000 (21:20 +0800)]
wcn36xx: split DMA mask register writing.

Per comments from Bjorn Andersson <bjorn.andersson@sonymobile.com>,
split DMA mask register writing as seperate patch in case we need
bi-sect in the furture.

Signed-off-by: Fengwei Yin <fengwei.yin@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agowcn36xx: handle rx skb allocation failure to avoid system crash
Fengwei Yin [Sun, 20 Dec 2015 13:20:40 +0000 (21:20 +0800)]
wcn36xx: handle rx skb allocation failure to avoid system crash

Lawrence reported that git clone could make system crash on a
Qualcomm ARM soc based device (DragonBoard, 1G memory without
swap) running 64bit Debian.

It's turned out the crash is related with rx skb allocation
failure. git could consume more than 600MB anonymous memory.
And system is in extremely memory shortage case.

But driver didn't handle the rx allocation failure case. This patch
doesn't submit skb to upper layer if rx skb allocation fails.
Instead, it reuse the old skb for rx DMA again. It's more like
drop the packets if system is in memory shortage case.

With this change, git clone is OOMed instead of system crash.

Reported-by: King, Lawrence <lking@qti.qualcomm.com>
Signed-off-by: Fengwei Yin <fengwei.yin@linaro.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath9k: fix ath9k_hw_nvram_check_version()
Dan Carpenter [Sat, 19 Dec 2015 10:59:19 +0000 (13:59 +0300)]
ath9k: fix ath9k_hw_nvram_check_version()

There is a type bug so it always returns success.

Fixes: 6fa658fd5ab2 ('ath9k: Simplify and fix eeprom endianness swapping')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath9k: Enable support for cloned SKBS
Pawel Kulakowski [Fri, 18 Dec 2015 09:48:57 +0000 (10:48 +0100)]
ath9k: Enable support for cloned SKBS

Ath9k driver does not modify tx skbs, so SUPPORTS_CLONED_SKBS
flag can be set. Enabling this flag significant reduce number
of copy operation during TCP Tx. This is especially noticeable
on platforms with slower CPU (lower CPU usage brings
profits in better TCP Tx troughput results).

Tested on MIPS with 560 MHz clock
Without CLONED_SKBS flag:
TCP Tx 145 Mb/s (iperf result)
__copy_user_common consumes 12.9% of CPU (result from perf tool)
0% CPU Idle

With CLONED_SKBS flag:
TCP Tx 170 Mb/s (iperf result)
__copy_user_common consumes 1.8% of CPU (result from perf tool)
12% CPU Idle

Signed-off-by: Pawel Kulakowski <pawel.kulakowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agowil6210: support for platform specific crash recovery
Lior David [Wed, 16 Dec 2015 15:51:46 +0000 (17:51 +0200)]
wil6210: support for platform specific crash recovery

Added a simple interface for platform to perform crash
recovery.
When firmware crashes, wil driver can notify the platform
which can trigger a crash recovery process. During
the process the platform can request a ram dump
from the wil driver as well as control when firmware
recovery will start. This interface allows the platform
to implement a more advanced crash recovery, for
example to reset dependent subsystems in proper order, or
to provide its own notifications during the recovery process.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agowil6210: fix kernel OOPS when stopping interface during Rx traffic
Hamad Kadmany [Wed, 16 Dec 2015 15:51:45 +0000 (17:51 +0200)]
wil6210: fix kernel OOPS when stopping interface during Rx traffic

When network interface is stopping, some resources may
be already released by the network stack, and Rx frames
cause kernel OOPS (observed one is in netfilter code)

Proper solution is to drop packets pending in reorder buffer.

Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: set SM power save disabled to default value
Peter Oh [Thu, 31 Dec 2015 13:26:20 +0000 (15:26 +0200)]
ath10k: set SM power save disabled to default value

Use SMPS disabled as default because FW does not indicate
any support of SMPS.

This change will help STAs out that don’t support SMPS from
sticking on 1SS, since they don’t have method to change it
back to multiple chains.

This change also should not affect power consumption of STAs
supporting SMPS, because they are capable to switch the mode
to dynamic or static either at the end of frame sequence or
by using SMPS action frame.

Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agort2x00pci: Disable memory-write-invalidate when the driver exits
Jia-Ju Bai [Mon, 4 Jan 2016 07:55:38 +0000 (15:55 +0800)]
rt2x00pci: Disable memory-write-invalidate when the driver exits

The driver calls pci_set_mwi to enable memory-write-invalidate when it
is initialized, but does not call pci_clear_mwi when it is removed. Many
other drivers calls pci_clear_mwi when pci_set_mwi is called, such as
r8169, 8139cp and e1000.

This patch adds pci_clear_mwi in error handling and removal procedure,
which can fix the problem.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: introduce module parameter to force successful probe
Arend van Spriel [Sat, 2 Jan 2016 08:41:42 +0000 (09:41 +0100)]
brcmfmac: introduce module parameter to force successful probe

The module parameter can be used to ensure the probe succeeds thus
claiming the device and allowing post-mortem debugging in case of
firmware crash. It is only available when select CONFIG_BRCMDBG.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Move all module parameters to one place
Hante Meuleman [Sat, 2 Jan 2016 08:41:41 +0000 (09:41 +0100)]
brcmfmac: Move all module parameters to one place

Module parameters are defined in several files. Move them in one
place and make them device specific or global. This makes it
easier to override device specific settings by external data like
platform data in the future.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Fix warn trace on module unload while in ibss mode
Hante Meuleman [Sat, 2 Jan 2016 08:41:40 +0000 (09:41 +0100)]
brcmfmac: Fix warn trace on module unload while in ibss mode

When the driver is being unloaded a situation can occur where the
wirelesss core (cfg80211) wants to remove the ibss, but the state
of brcmfmac has already been set to down. When an error is
returned in that situation then that will result in a stack
trace on removal of the wiphy object. This is avoided by
returning 0 when device is down on a leave_ibss call.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: obtain feature info using 'cap' firmware command
Arend van Spriel [Sat, 2 Jan 2016 08:41:39 +0000 (09:41 +0100)]
brcmfmac: obtain feature info using 'cap' firmware command

Several features in the driver directly map to a firmware feature
listed in response of the 'cap' firmware command. For those features
this response will be examined instead of attempting individual
firmware commands.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Mathy Vanhoef <vanhoefm@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Add support for scheduled scan mac randomization
Hante Meuleman [Sat, 2 Jan 2016 08:41:38 +0000 (09:41 +0100)]
brcmfmac: Add support for scheduled scan mac randomization

Scheduled scan be requested to use mac randomization. This patch
checks the flags and enables the randomization if desired.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: Add get_station support for IBSS
Hante Meuleman [Sat, 2 Jan 2016 08:41:37 +0000 (09:41 +0100)]
brcmfmac: Add get_station support for IBSS

When get_station is requested for IBSS then an error will be
printed and no information will be returned. This patch adds
IBSS specific get station information function.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: add arp offload ip address table configuration support
Franky Lin [Sat, 2 Jan 2016 08:41:36 +0000 (09:41 +0100)]
brcmfmac: add arp offload ip address table configuration support

Obtain ipv4 address through inetaddr notification for ARP offload host
ip table configuration.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoipw2x00: add checks for dma mapping errors
Alexey Khoroshilov [Fri, 1 Jan 2016 23:12:38 +0000 (02:12 +0300)]
ipw2x00: add checks for dma mapping errors

ipw2100_alloc_skb() and ipw2100_tx_send_data() do not check if mapping
dma memory succeed. The patch adds the checks and failure handling.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: reduce cloned skb queue size
Amitkumar Karwar [Thu, 31 Dec 2015 14:24:15 +0000 (06:24 -0800)]
mwifiex: reduce cloned skb queue size

Driver supports Tx status ack feature. When hostapd/
wpa_supplicant asks for ack status of an EAPOL/ACTION
frame, driver maintains a cloned skb for the packet
until TX_STATUS event is received from firmware.

Cloned skb queue gets flushed when connection is terminated
or driver is unloaded.

Let's reduce the queue size to avoid unnecessarily
keeping memory allocated when environment is busy.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: increase priority for critical message
Xinming Hu [Thu, 31 Dec 2015 14:24:14 +0000 (06:24 -0800)]
mwifiex: increase priority for critical message

This patch increase the priority for some critical
messages.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: fix missing debug messages
Xinming Hu [Thu, 31 Dec 2015 14:24:12 +0000 (06:24 -0800)]
mwifiex: fix missing debug messages

Some critical messages are missed until "adapter->dev"
gets initialized in mwifiex_register_dev().
We will use pr_* print message instead of mwifiex_dbg at
those places to resolve the problem.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: correctly handling kzalloc
Insu Yun [Wed, 30 Dec 2015 16:01:44 +0000 (11:01 -0500)]
mwifiex: correctly handling kzalloc

Since kzalloc can be failed in memory pressure,
it needs to be handled, otherwise NULL dereference could be happened

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoiwlegacy: 4965-mac: constify il_sensitivity_ranges structure
Julia Lawall [Wed, 30 Dec 2015 11:20:49 +0000 (12:20 +0100)]
iwlegacy: 4965-mac: constify il_sensitivity_ranges structure

The il_sensitivity_ranges is never modified, so declare it as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agosoreuseport: change consume_skb to kfree_skb in error case
Craig Gallek [Tue, 5 Jan 2016 15:57:13 +0000 (10:57 -0500)]
soreuseport: change consume_skb to kfree_skb in error case

Fixes: 538950a1b752 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosoreuseport: pass skb to secondary UDP socket lookup
Craig Gallek [Tue, 5 Jan 2016 20:08:07 +0000 (15:08 -0500)]
soreuseport: pass skb to secondary UDP socket lookup

This socket-lookup path did not pass along the skb in question
in my original BPF-based socket selection patch.  The skb in the
udpN_lib_lookup2 path can be used for BPF-based socket selection just
like it is in the 'traditional' udpN_lib_lookup path.

udpN_lib_lookup2 kicks in when there are greater than 10 sockets in
the same hlist slot.  Coincidentally, I chose 10 sockets per
reuseport group in my functional test, so the lookup2 path was not
excersised. This adds an additional set of tests with 20 sockets.

Fixes: 538950a1b752 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
Fixes: 3ca8e4029969 ("soreuseport: BPF selection functional test")
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomlxsw: pci: Adjust value of CPU egress traffic class
Ido Schimmel [Tue, 5 Jan 2016 10:36:40 +0000 (11:36 +0100)]
mlxsw: pci: Adjust value of CPU egress traffic class

During initialization, when creating the send descriptor queues (SDQs),
we specify the CPU egress traffic class of each SDQ. The maximum number
of classes of this type is different in the two ASICs supported by this
PCI driver.

New firmware versions check this value is set correctly, which causes
errors on the Spectrum ASIC, as its max exposed egress traffic class is
lower than 7.

Solve this by setting this field to 3, which is an acceptable value for
both ASICs.

Note that we currently do not expose the QoS capabilities of the ASICs,
so setting this to an hardcoded value is OK for now.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge tag 'wireless-drivers-next-for-davem-2016-01-05' of git://git.kernel.org/pub...
David S. Miller [Wed, 6 Jan 2016 05:05:04 +0000 (00:05 -0500)]
Merge tag 'wireless-drivers-next-for-davem-2016-01-05' of git://git./linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
brcfmac

* fix IBSS which got broken over time
* new USB id for bcm43242 dongle
* arp offload configuration through inet notifier

ath9k

* add random number generator support (CONFIG_ATH9K_HWRNG)

iwlwifi

* Make scan parameters low latency aware
* Fix in the NL80211_FEATURE_FULL_AP_CLIENT_STATE state case
* Fix enable injection mode (Chaya Rachel)
* Various cleanups (Dan / Julia / myself)
* Allow to stay more time on popular channels (David Spinadel)
* Bug fixes for D0i3 (Eliad / Luca)
* Fixes for GO uAPSD (myself)
* Start of TSO support (myself)
* Rate control bug fixes (Eyal / Gregory)
* Start the work on 9000 devices (Johannes / Sara / Oren)
* Start the work on a new Tx queue allocation model (Liad)
* Debug infrastructure enhancements (Golan)

mwifiex

* add a debugfs file for chip reset
* advertise SMS4 cipher suite
* increase ap and station interface limit to 3
* enable MSI support on newer pcie devices (8897 onwards)

rtlwifi

* fix lots of module parameter usage
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: hns: avoid uninitialized variable warning:
Arnd Bergmann [Fri, 1 Jan 2016 22:27:57 +0000 (23:27 +0100)]
net: hns: avoid uninitialized variable warning:

gcc fails to see that the use of the 'last_offset' variable
in hns_nic_reuse_page() is used correctly and issues a bogus
warning:

drivers/net/ethernet/hisilicon/hns/hns_enet.c: In function 'hns_nic_reuse_page':
drivers/net/ethernet/hisilicon/hns/hns_enet.c:541:6: warning: 'last_offset' may be used uninitialized in this function [-Wmaybe-uninitialized]

This simplifies the function to make it more obvious what is
going on to both readers and compilers, which makes the warning
go away.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoinet: kill unused skb_free op
Florian Westphal [Tue, 5 Jan 2016 21:17:55 +0000 (22:17 +0100)]
inet: kill unused skb_free op

The only user was removed in commit
029f7f3b8701cc7a ("netfilter: ipv6: nf_defrag: avoid/free clone operations").

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoinclude/uapi/linux/sockios.h: mark SIOCRTMSG unused
xypron.glpk@gmx.de [Tue, 5 Jan 2016 09:12:49 +0000 (10:12 +0100)]
include/uapi/linux/sockios.h: mark SIOCRTMSG unused

IOCTL SIOCRTMSG does nothing but return EINVAL.

So comment it as unused.

SIOCRTMSG is only used in:
* net/ipv4/af_inet.c
* include/uapi/linux/sockios.h

inet_ioctl calls ip_rt_ioctl.
ip_rt_ioctl only handles SIOCADDRT and SIOCDELRT and returns -EINVAL
otherwise.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'mlx5e-tstamp'
David S. Miller [Tue, 5 Jan 2016 19:11:51 +0000 (14:11 -0500)]
Merge branch 'mlx5e-tstamp'

Saeed Mahameed says:

====================
Introduce mlx5 ethernet timestamping

This patch series introduces the support for ConnectX-4 timestamping
and the PTP kernel interface.

Changes from V2:
net/mlx5_core: Introduce access function to read internal_timer
- Remove one line function
- Change function name

net/mlx5e: Add HW timestamping (TS) support:
- Data path performance optimization (caching tstamp struct in rq,sq)
- Change read/write_lock_irqsave to read/write_lock
- Move ioctl functions to en_clock file
- Changed overflow start algorithm according to comments from Richard
- Move timestamp init/cleanup to open/close ndos.

In details:

1st patch prevents the driver from modifying skb->data and SKB CB in
device xmit function.

2nd patch adds the needed low level helpers for:
- Fetching the hardware clock (hardware internal timer)
- Parsing CQEs timestamps
- Device frequency capability

3rd patch adds new en_clock.c file that handles all needed timestamping
operations:
- Internal clock structure initialization and other helper functions
- Added the needed ioctl for setting/getting the current timestamping
  configuration.
- used this configuration in RX/TX data path to fill the SKB with
  the timestamp.

4th patch Introduces PTP (PHC) support.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5e: Add PTP Hardware Clock (PHC) support
Eran Ben Elisha [Tue, 29 Dec 2015 12:58:32 +0000 (14:58 +0200)]
net/mlx5e: Add PTP Hardware Clock (PHC) support

Add a PHC support to the mlx5_en driver. Use reader/writer spinlocks to
protect the timecounter since every packet received needs to call
timecounter_cycle2time() when timestamping is enabled.  This can become
a performance bottleneck with RSS and multiple receive queues if normal
spinlocks are used.

The driver has been tested with both Documentation/ptp/testptp and the
linuxptp project (http://linuxptp.sourceforge.net/) on a Mellanox
ConnectX-4 card.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5e: Add HW timestamping (TS) support
Eran Ben Elisha [Tue, 29 Dec 2015 12:58:31 +0000 (14:58 +0200)]
net/mlx5e: Add HW timestamping (TS) support

Add support for enable/disable HW timestamping for incoming and/or
outgoing packets. To enable/disable HW timestamping appropriate
ioctl should be used. Currently HWTSTAMP_FILTER_ALL/NONE and
HWTSAMP_TX_ON/OFF only are supported. Make all relevant changes in
RX/TX flows to consider TS request and plant HW timestamps into
relevant structures.

Add internal clock for converting hardware timestamp to nanoseconds. In
addition, add a service task to catch internal clock overflow, to make
sure timestamping is accurate.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5_core: Introduce access function to read internal timer
Eran Ben Elisha [Tue, 29 Dec 2015 12:58:30 +0000 (14:58 +0200)]
net/mlx5_core: Introduce access function to read internal timer

A preparation step which adds support for reading the hardware
internal timer and the hardware timestamping from the CQE.
In addition, advertize device_frequency_khz HCA capability.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5e: Do not modify the TX SKB
Achiad Shochat [Tue, 29 Dec 2015 12:58:29 +0000 (14:58 +0200)]
net/mlx5e: Do not modify the TX SKB

If the SKB is cloned, or has an elevated users count, someone else
can be looking at it at the same time.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'sctp-transport-rhashtable'
David S. Miller [Tue, 5 Jan 2016 17:24:06 +0000 (12:24 -0500)]
Merge branch 'sctp-transport-rhashtable'

Xin Long says:

====================
sctp: use transport hashtable to replace association's with rhashtable

for telecom center, the usual case is that a server is connected by thousands
of clients. but if the server with only one enpoint(udp style) use the same
sport and dport to communicate with every clients, and every assoc in server
will be hashed in the same chain of global assoc hashtable due to currently we
choose dport and sport as the hash key.

when a packet is received, sctp_rcv try to find the assoc with sport and dport,
since that chain is too long to find it fast, it make the performance turn to
very low, some test data is as follow:

in server:
$./ss [start a udp style server there]
in client:
$./cc [start 2500 sockets to connect server with same port and different ip,
       and use one of them to send data to server]

===== test on net-next
-- perf top
server:
  55.73%  [kernel]             [k] sctp_assoc_is_match
   6.80%  [kernel]             [k] sctp_assoc_lookup_paddr
   4.81%  [kernel]             [k] sctp_v4_cmp_addr
   3.12%  [kernel]             [k] _raw_spin_unlock_irqrestore
   1.94%  [kernel]             [k] sctp_cmp_addr_exact

client:
  46.01%  [kernel]                    [k] sctp_endpoint_lookup_assoc
   5.55%  libc-2.17.so                [.] __libc_calloc
   5.39%  libc-2.17.so                [.] _int_free
   3.92%  libc-2.17.so                [.] _int_malloc
   3.23%  [kernel]                    [k] __memset

-- spent time
time is 487s, send pkt is 10000000

we need to change the way to calculate the hash key, to use lport +
rport + paddr as the hash key can avoid this issue.

besides, this patchset will use transport hashtable to replace
association hashtable to lookup with rhashtable api. get transport
first then get association by t->asoc. and also it will make tcp
style work better.

===== test with this patchset:
-- perf top
server:
  15.98%  [kernel]                 [k] _raw_spin_unlock_irqrestore
   9.92%  [kernel]                 [k] __pv_queued_spin_lock_slowpath
   7.22%  [kernel]                 [k] copy_user_generic_string
   2.38%  libpthread-2.17.so       [.] __recvmsg_nocancel
   1.88%  [kernel]                 [k] sctp_recvmsg

client:
  11.90%  [kernel]                   [k] sctp_hash_cmp
   8.52%  [kernel]                   [k] rht_deferred_worker
   4.94%  [kernel]                   [k] __pv_queued_spin_lock_slowpath
   3.95%  [kernel]                   [k] sctp_bind_addr_match
   2.49%  [kernel]                   [k] __memset

-- spent time
time is 22s, send pkt is 10000000
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosctp: remove the local_bh_disable/enable in sctp_endpoint_lookup_assoc
Xin Long [Wed, 30 Dec 2015 15:50:50 +0000 (23:50 +0800)]
sctp: remove the local_bh_disable/enable in sctp_endpoint_lookup_assoc

sctp_endpoint_lookup_assoc is called in the protection of sock lock
there is no need to call local_bh_disable in this function. so remove
them.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosctp: drop the old assoc hashtable of sctp
Xin Long [Wed, 30 Dec 2015 15:50:49 +0000 (23:50 +0800)]
sctp: drop the old assoc hashtable of sctp

transport hashtable will replace the association hashtable,
so association hashtable is not used in sctp any more, so
drop the codes about that.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosctp: apply rhashtable api to sctp procfs
Xin Long [Wed, 30 Dec 2015 15:50:48 +0000 (23:50 +0800)]
sctp: apply rhashtable api to sctp procfs

Traversal the transport rhashtable, get the association only once through
the condition assoc->peer.primary_path != transport.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosctp: apply rhashtable api to send/recv path
Xin Long [Wed, 30 Dec 2015 15:50:47 +0000 (23:50 +0800)]
sctp: apply rhashtable api to send/recv path

apply lookup apis to two functions, for __sctp_endpoint_lookup_assoc
and __sctp_lookup_association, it's invoked in the protection of sock
lock, it will be safe, but sctp_lookup_association need to call
rcu_read_lock() and to detect the t->dead to protect it.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosctp: add the rhashtable apis for sctp global transport hashtable
Xin Long [Wed, 30 Dec 2015 15:50:46 +0000 (23:50 +0800)]
sctp: add the rhashtable apis for sctp global transport hashtable

tranport hashtbale will replace the association hashtable to do the
lookup for transport, and then get association by t->assoc, rhashtable
apis will be used because of it's resizable, scalable and using rcu.

lport + rport + paddr will be the base hashkey to locate the chain,
with net to protect one netns from another, then plus the laddr to
compare to get the target.

this patch will provider the lookup functions:
- sctp_epaddr_lookup_transport
- sctp_addrs_lookup_transport

hash/unhash functions:
- sctp_hash_transport
- sctp_unhash_transport

init/destroy functions:
- sctp_transport_hashtable_init
- sctp_transport_hashtable_destroy

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'faster-soreuseport'
David S. Miller [Tue, 5 Jan 2016 03:49:59 +0000 (22:49 -0500)]
Merge branch 'faster-soreuseport'

Craig Gallek says:

====================
Faster SO_REUSEPORT

This series contains two optimizations for the SO_REUSEPORT feature:
Faster lookup when selecting a socket for an incoming packet and
the ability to select the socket from the group using a BPF program.

This series only includes the UDP path.  I plan to submit a follow-up
including the TCP path if the implementation in this series is
acceptable.

Changes in v4:
- pskb_may_pull is unnecessary with pskb_pull (per Alexei Starovoitov)

Changes in v3:
- skb_pull_inline -> pskb_pull (per Alexei Starovoitov)
- reuseport_attach* -> sk_reuseport_attach* and simple return statement
  syntax change (per Daniel Borkmann)

Changes in v2:
- Fix ARM build; remove unnecessary include.
- Handle case where protocol header is not in linear section (per
  Alexei Starovoitov).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosoreuseport: BPF selection functional test
Craig Gallek [Mon, 4 Jan 2016 22:41:48 +0000 (17:41 -0500)]
soreuseport: BPF selection functional test

This program will build classic and extended BPF programs and
validate the socket selection logic when used with
SO_ATTACH_REUSEPORT_CBPF and SO_ATTACH_REUSEPORT_EBPF.

It also validates the re-programing flow and several edge cases.

Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosoreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF
Craig Gallek [Mon, 4 Jan 2016 22:41:47 +0000 (17:41 -0500)]
soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF

Expose socket options for setting a classic or extended BPF program
for use when selecting sockets in an SO_REUSEPORT group.  These options
can be used on the first socket to belong to a group before bind or
on any socket in the group after bind.

This change includes refactoring of the existing sk_filter code to
allow reuse of the existing BPF filter validation checks.

Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosoreuseport: fast reuseport UDP socket selection
Craig Gallek [Mon, 4 Jan 2016 22:41:46 +0000 (17:41 -0500)]
soreuseport: fast reuseport UDP socket selection

Include a struct sock_reuseport instance when a UDP socket binds to
a specific address for the first time with the reuseport flag set.
When selecting a socket for an incoming UDP packet, use the information
available in sock_reuseport if present.

This required adding an additional field to the UDP source address
equality function to differentiate between exact and wildcard matches.
The original use case allowed wildcard matches when checking for
existing port uses during bind.  The new use case of adding a socket
to a reuseport group requires exact address matching.

Performance test (using a machine with 2 CPU sockets and a total of
48 cores):  Create reuseport groups of varying size.  Use one socket
from this group per user thread (pinning each thread to a different
core) calling recvmmsg in a tight loop.  Record number of messages
received per second while saturating a 10G link.
  10 sockets: 18% increase (~2.8M -> 3.3M pkts/s)
  20 sockets: 14% increase (~2.9M -> 3.3M pkts/s)
  40 sockets: 13% increase (~3.0M -> 3.4M pkts/s)

This work is based off a similar implementation written by
Ying Cai <ycai@google.com> for implementing policy-based reuseport
selection.

Signed-off-by: Craig Gallek <kraig@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosoreuseport: define reuseport groups
Craig Gallek [Mon, 4 Jan 2016 22:41:45 +0000 (17:41 -0500)]
soreuseport: define reuseport groups

struct sock_reuseport is an optional shared structure referenced by each
socket belonging to a reuseport group.  When a socket is bound to an
address/port not yet in use and the reuseport flag has been set, the
structure will be allocated and attached to the newly bound socket.
When subsequent calls to bind are made for the same address/port, the
shared structure will be updated to include the new socket and the
newly bound socket will reference the group structure.

Usually, when an incoming packet was destined for a reuseport group,
all sockets in the same group needed to be considered before a
dispatching decision was made.  With this structure, an appropriate
socket can be found after looking up just one socket in the group.

This shared structure will also allow for more complicated decisions to
be made when selecting a socket (eg a BPF filter).

This work is based off a similar implementation written by
Ying Cai <ycai@google.com> for implementing policy-based reuseport
selection.

Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'mlxsw-fixes'
David S. Miller [Tue, 5 Jan 2016 03:07:58 +0000 (22:07 -0500)]
Merge branch 'mlxsw-fixes'

Jiri Pirko says:

====================
mlxsw: couple of fixes

Couple of fixes from Ido.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomlxsw: spectrum: Change bridge port attributes only when bridged
Ido Schimmel [Mon, 4 Jan 2016 09:42:26 +0000 (10:42 +0100)]
mlxsw: spectrum: Change bridge port attributes only when bridged

Bridge port attributes are offloaded to hardware when invoked with SELF
flag set, but it really makes no sense to reflect them when port is not
bridged.

Allow a user to change these attribute only when port is bridged and
initialize them correctly when joining or leaving a bridge.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomlxsw: spectrum: Set bridge status in appropriate functions
Ido Schimmel [Mon, 4 Jan 2016 09:42:25 +0000 (10:42 +0100)]
mlxsw: spectrum: Set bridge status in appropriate functions

Set the bridge status of physical ports in the appropriate functions, to
be consistent with LAG join/leave and vPorts joining/leaving bridge.

Also, remove the error messages in these two functions, as we already
emit errors in both the single functions they call.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomlxsw: spectrum: Return NOTIFY_BAD on bridge failure
Ido Schimmel [Mon, 4 Jan 2016 09:42:24 +0000 (10:42 +0100)]
mlxsw: spectrum: Return NOTIFY_BAD on bridge failure

It is possible for us to fail when joining or leaving a bridge, so let
the user know about that by returning NOTIFY_BAD, as already done for
LAG join/leave and 802.1D bridges.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomlxsw: spectrum: Initialize PVID only once
Ido Schimmel [Mon, 4 Jan 2016 09:42:23 +0000 (10:42 +0100)]
mlxsw: spectrum: Initialize PVID only once

We set PVID to 1 in mlxsw_sp_port_vlan_init(), so we can remove this
statement.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agochelsio: constify cphy_ops structures
Julia Lawall [Sun, 3 Jan 2016 13:09:37 +0000 (14:09 +0100)]
chelsio: constify cphy_ops structures

The cphy_ops structures are never modified, so declare them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agofsl/fman: allow modular build
Arnd Bergmann [Fri, 1 Jan 2016 13:55:24 +0000 (14:55 +0100)]
fsl/fman: allow modular build

ARM allmodconfig fails because of the addition of the FMAN driver:

drivers/built-in.o: In function `dtsec_restart_autoneg':
binder.c:(.text+0x173328): undefined reference to `mdiobus_read'
binder.c:(.text+0x173348): undefined reference to `mdiobus_write'
drivers/built-in.o: In function `dtsec_config':
binder.c:(.text+0x173d24): undefined reference to `of_phy_find_device'
drivers/built-in.o: In function `init_phy':
binder.c:(.text+0x1763b0): undefined reference to `of_phy_connect'
drivers/built-in.o: In function `stop':
binder.c:(.text+0x176014): undefined reference to `phy_stop'
drivers/built-in.o: In function `start':
binder.c:(.text+0x176078): undefined reference to `phy_start'

The reason is that the driver uses PHYLIB, but that is a loadable
module here, and fman itself is built-in.

This patch makes it possible to configure fman as a module as well
so we don't change the status of PHYLIB in an allmodconfig kernel,
and it adds a 'select PHYLIB' statement to ensure that phylib is
always built-in when fman is.

The driver uses "builtin_platform_driver(fman_driver);", which means
it cannot be unloaded, but it's still possible to have it as a loadable
module that gets loaded once and never removed.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 5adae51a64b8 ("fsl/fman: Add FMan MURAM support")
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: make ip6tunnel_xmit definition conditional
Arnd Bergmann [Fri, 1 Jan 2016 12:18:48 +0000 (13:18 +0100)]
net: make ip6tunnel_xmit definition conditional

Moving the caller of iptunnel_xmit_stats causes a build error in
randconfig builds that disable CONFIG_INET:

In file included from ../net/xfrm/xfrm_input.c:17:0:
../include/net/ip6_tunnel.h: In function 'ip6tunnel_xmit':
../include/net/ip6_tunnel.h:93:2: error: implicit declaration of function 'iptunnel_xmit_stats' [-Werror=implicit-function-declaration]
  iptunnel_xmit_stats(dev, pkt_len);

The reason is that the iptunnel_xmit_stats definition is hidden
inside #ifdef CONFIG_INET but the caller is not. We can change
one or the other to fix it, and this patch adds a second #ifdef
around ip6tunnel_xmit() to avoid seeing the invalid call.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 039f50629b7f ("ip_tunnel: Move stats update to iptunnel_xmit()")
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge tag 'nfc-next-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo...
David S. Miller [Tue, 5 Jan 2016 02:48:15 +0000 (21:48 -0500)]
Merge tag 'nfc-next-4.5-1' of git://git./linux/kernel/git/sameo/nfc-next

Samuel Ortiz says:

====================
NFC 4.5 pull request

This is the first NFC pull request for 4.5 and it brings:

- A new driver for the STMicroelectronics ST95HF NFC chipset.
  The ST95HF is an NFC digital transceiver with an embedded analog
  front-end and as such relies on the Linux NFC digital
  implementation. This is the 3rd user of the NFC digital stack.

- ACPI support for the ST st-nci and st21nfca drivers.

- A small improvement for the nfcsim driver, as we can now tune
  the Rx delay through sysfs.

- A bunch of minor cleanups and small fixes from Christophe Ricard,
  for a few drivers and the NFC core code.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoudp: properly support MSG_PEEK with truncated buffers
Eric Dumazet [Wed, 30 Dec 2015 13:51:12 +0000 (08:51 -0500)]
udp: properly support MSG_PEEK with truncated buffers

Backport of this upstream commit into stable kernels :
89c22d8c3b27 ("net: Fix skb csum races when peeking")
exposed a bug in udp stack vs MSG_PEEK support, when user provides
a buffer smaller than skb payload.

In this case,
skb_copy_and_csum_datagram_iovec(skb, sizeof(struct udphdr),
                                 msg->msg_iov);
returns -EFAULT.

This bug does not happen in upstream kernels since Al Viro did a great
job to replace this into :
skb_copy_and_csum_datagram_msg(skb, sizeof(struct udphdr), msg);
This variant is safe vs short buffers.

For the time being, instead reverting Herbert Xu patch and add back
skb->ip_summed invalid changes, simply store the result of
udp_lib_checksum_complete() so that we avoid computing the checksum a
second time, and avoid the problematic
skb_copy_and_csum_datagram_iovec() call.

This patch can be applied on recent kernels as it avoids a double
checksumming, then backported to stable kernels as a bug fix.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'r8169-hw-programming-typo-fixes'
David S. Miller [Mon, 4 Jan 2016 21:50:50 +0000 (16:50 -0500)]
Merge branch 'r8169-hw-programming-typo-fixes'

Chunhao Lin says:

====================
Fix some typos in setting hardware parameter

The typos are in setting RTL8168DP, RTL8168EP and RTL8168H hardware parameters.
This series of patch fix these typos.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agor8169:Correct the way of setting RTL8168DP ephy
Chun-Hao Lin [Tue, 29 Dec 2015 14:13:39 +0000 (22:13 +0800)]
r8169:Correct the way of setting RTL8168DP ephy

The original way is wrong, it always writes ephy reg 0x03.

Signed-off-by: Chunhao Lin <hau@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agor8169:Fix typo in setting RTL8168H PHY PFM mode.
Chun-Hao Lin [Tue, 29 Dec 2015 14:13:38 +0000 (22:13 +0800)]
r8169:Fix typo in setting RTL8168H PHY PFM mode.

The PHY PFM register is in PHY page 0x0a44 register 0x11, not 0x14.

Signed-off-by: Chunhao Lin <hau@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agor8169:Fix typo in setting RTL8168EP and RTL8168H D3cold PFM mode
Chun-Hao Lin [Tue, 29 Dec 2015 14:13:37 +0000 (22:13 +0800)]
r8169:Fix typo in setting RTL8168EP and RTL8168H D3cold PFM mode

The register for setting D3code PFM mode is  MISC_1, not DLLPR.

Signed-off-by: Chunhao Lin <hau@realtek.com>
Reviewed-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agol2tp: rely on ppp layer for skb scrubbing
Guillaume Nault [Tue, 29 Dec 2015 12:06:59 +0000 (13:06 +0100)]
l2tp: rely on ppp layer for skb scrubbing

Since 79c441ae505c ("ppp: implement x-netns support"), the PPP layer
calls skb_scrub_packet() whenever the skb is received on the PPP
device. Manually resetting packet meta-data in the L2TP layer is thus
redundant.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'sh_eth-remove-BE-desc-support'
David S. Miller [Mon, 4 Jan 2016 21:11:12 +0000 (16:11 -0500)]
Merge branch 'sh_eth-remove-BE-desc-support'

Sergei Shtylyov says:

====================
sh_eth: remove unused BE descriptor support

   Here's a set of 2 patches against DaveM's 'net-next.git' repo plus the
recently merged to 'net.git' repo fix for the 16-bit descriptor endianness.
We get rid of ~30 LoCs and ~300 bytes of code.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosh_eth: get rid of {cpu|edmac}_to_{edmac|cpu}()
Sergei Shtylyov [Sun, 27 Dec 2015 23:10:47 +0000 (02:10 +0300)]
sh_eth: get rid of {cpu|edmac}_to_{edmac|cpu}()

Now that {cpu|edmac}_to_{edmac|cpu}() functions boiled down to the mere
{cpu|le32}_to_{le32|cpu}() calls, there's no need for these functions
anymore, so just get rid of them.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosh_eth: remove EDMAC_BIG_ENDIAN
Sergei Shtylyov [Sun, 27 Dec 2015 23:07:08 +0000 (02:07 +0300)]
sh_eth: remove EDMAC_BIG_ENDIAN

Commit  71557a37adb5 ("[netdrvr] sh_eth: Add SH7619 support") added support
for the big-endian EDMAC descriptors. However, it was never used and never
worked right until the recent driver  fixes. I think we now  can just remove
this support,  it was only burdening the driver from the start. It should be
easy to do without disturbing the SH platform code, at least for now...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>