Commit Graph

60175 Commits

Author SHA1 Message Date
Sara Sharon
10b2b2019d iwlwifi: mvm: add infrastructure for tracking BA session in driver
According to the spec when a BA session is started there
is a timeout set for the session in the ADDBA request.
If there is not activity on the TA/TID then the session
expires and a DELBA is sent.
In order to check for the timeout, data must be shared
among the rx queues.
Add a timer that runs as long as BA session is active
for the station and stops aggregation session if needed.
This patch also lays the infrastructure for the reordering
buffer which will be enabled in the next patches.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 22:14:40 +03:00
Sara Sharon
d0ff5d2297 iwlwifi: mvm: change RX sync notification to be an attribute and not a type
Currently the sync notification is a type of notification. However, it
is better fitted as an attribute of a notification, since there might
be another message in the payload (delba for instance) that should be
sent while control path is waiting for all queues to process.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 22:14:40 +03:00
Sara Sharon
0636b93821 iwlwifi: mvm: implement driver RX queues sync command
mac80211 will call the driver whenever there is a race between
RSS queues and control path that requires a processing of all
pending frames in RSS queues.
Implement that by utilizing the internal notification mechanism:
queue a message to all queues. When the message is received on
a queue it decrements the atomic counter. This guarantees that
all pending frames in the RX queue were processed since the message
is in order inside the queue.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 22:14:39 +03:00
Shengzhen Li
251a9605ab mwifiex: change sleep cookie poll count
Sometimes current polling count is not sufficient.
This patch increases it to 100.

Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-10 19:41:16 +03:00
Mordechai Goodstein
e5ed17929b iwlwifi: Edit the 8265 SDIO ID
Add new 8265 series SDIO ID.

Signed-off-by: Mordechai Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 18:34:58 +03:00
Liad Kaufman
4c965139a3 iwlwifi: mvm: support p2p device frames tx on dqa queue #2
Support sending P2P device frames should be sent from
queue #2, as required in DQA mode.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 18:34:25 +03:00
Liad Kaufman
de24f63802 iwlwifi: mvm: allocate queue for probe response in dqa mode
In DQA mode, allocate a dedicated queue (#9) for P2P GO/soft
AP probe responses.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 18:32:47 +03:00
Luca Coelho
a525d0eab1 * fix P2P rates (and possibly other issues)
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Merge tag 'iwlwifi-for-kalle-2016-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

* fix P2P rates (and possibly other issues)

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2016-05-10 11:56:24 +03:00
Helmut Schaa
41842dc1f0 ath9k: Fix symbol overlap window for half/quarter channels
Since commit cd6cfd7311
"ath9k: do not set half/quarter channel flags in AR_PHY_MODE" the
condition "rfMode & (AR_PHY_MODE_QUARTER | AR_PHY_MODE_HALF)" would
never evaluate to true.

Fix this by using the available IS_CHAN_HALF_RATE and IS_CHAN_QUARTER_RATE
marcros instead.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-09 21:12:01 +03:00
Helmut Schaa
b0291715d3 ath9k: Simplify ar9003_hw_tx99_set_txpower
There's no need to keep the same for loop twice in the code.
Move the txpower cap before the loop to reduce code complexity.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-09 20:46:51 +03:00
Helmut Schaa
e7ae328961 ath9k: Move TX99 config option under ath9k debugging
Since ATH9K_TX99 depends on ATH9K_DEBUGFS anyway move it there
such that "make menuconfig" will indent TX99 support below ath9k
debugging.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-09 20:46:44 +03:00
Helmut Schaa
8569f59154 ath9k: reuse ar9003_hw_tx_power_regwrite for tx99 setup
The same functionality as ar9003_hw_tx_power_regwrite is hardcoded in
ar9003_hw_tx99_set_txpower. Just reuse the existing ar9003_hw_tx_power_regwrite
for TX99 setup too.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-09 20:46:31 +03:00
Rajkumar Manoharan
9a5f91a1d6 ath10k: release pre_cal_file while unloading driver
Failing to release pre_cal_file caldata on deinit causes memory leak.

Fixes: b131129d96 ("ath10k: fix calibration init sequence of qca99x0")
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06 18:55:37 +03:00
Rajkumar Manoharan
fa7937e3d5 ath10k: update bss channel survey information
During hw scan, firmware sends two channel information events (pre-
complete, complete) to host for each channel change. The snap shot of cycle
counters (rx_clear and total) between these two events are given for
survey dump. In order to get latest survey statistics of all channels, a
scan request has to be issued. In general, an AP DUT is brought up, it
won't leave BSS channel except few cases like overlapping bss or radar
detection. So survey statistics of bss channel is always referring to
older data that are collected before starting AP (either ACS/OBSS scan).

To collect latest survey information from target, firmware provides WMI
interface to read cycle counters from hardware. For each survey dump
request, BSS channel cycle counters are read and cleared in hardware.
This makes sure that behavior is in align with ath9k survey report.
So survey dump always gives snap shot of cycle counters b/w two survey
requests.

Signed-off-by: Yanbo Li <yanbol@qca.qualcomm.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06 18:55:37 +03:00
Rajkumar Manoharan
89d2d183bb ath10k: handle pdev_chan_info wmi event
Add handler to process bss channel information wmi event that
will be received upon sending pdev_chan_info_request wmi command.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06 18:55:37 +03:00
Rajkumar Manoharan
8a0b459e36 ath10k: implement wmi_pdev_bss_chan_info_request
Add WMI ops to send pdev_bss_chan_info_request command to target.
This command will be used to retrieve updated cycle counters and noise
floor value of current operating channel (bss channel).

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06 18:55:37 +03:00
Rajkumar Manoharan
dd2c5fcb9f ath10k: add pdev bss channel info wmi definitions
Add WMI definitions for pdev bss channel information request and
event.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06 18:55:36 +03:00
Anilkumar Kolli
4ad24a9d83 ath10k: fix kernel panic, move arvifs list head init before htt init
It is observed that while loading and unloading ath10k modules
in an infinite loop, before ath10k_core_start() completion HTT
rx frames are received, while processing these frames,
dereferencing the arvifs list code is getting hit before
initilizing the arvifs list, causing a kernel panic.

This patch initilizes the arvifs list before initilizing htt.

Fixes the below issue:
 [<bf88b058>] (ath10k_htt_rx_pktlog_completion_handler+0x278/0xd08 [ath10k_core])
 [<bf88b058>] (ath10k_htt_rx_pktlog_completion_handler [ath10k_core])
 [<bf88c0dc>] (ath10k_htt_txrx_compl_task+0x5f4/0xeb0 [ath10k_core])
 [<bf88c0dc>] (ath10k_htt_txrx_compl_task [ath10k_core])
 [<c0234100>] (tasklet_action+0x8c/0xec)
 [<c0234100>] (tasklet_action)
 [<c02337c0>] (__do_softirq+0xf8/0x228)
 [<c02337c0>] (__do_softirq)  [<c0233920>] (run_ksoftirqd+0x30/0x90)
 Code: e5954ad8 e2899008 e1540009 0a00000d (e5943008)
 ---[ end trace 71de5c2e011dbf56 ]---
 Kernel panic - not syncing: Fatal exception in interrupt

Fixes: 500ff9f938 ("ath10k: implement chanctx API")
Cc: <stable@vger.kernel.org>
Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06 18:55:36 +03:00
Mohammed Shafi Shajakhan
de46d16565 ath10k: move spectral related structures under ath10k debugfs
Spectral related structures are accessed / modified only if ath10k
debugfs is enabled, so it makes more sense to move them under
ATH10K_DEBUGFS

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06 18:55:36 +03:00
Johannes Berg
94ee3f19b1 ath10k: remove VHT capabilities from 2.4GHz
According to the spec, VHT doesn't exist in 2.4GHz.

There are vendor extensions to allow a subset of VHT to work
(notably 256-QAM), but since mac80211 doesn't support those
advertising VHT capability on 2.4GHz leads to the behaviour
of reporting VHT capabilities but not being able to use any
of them due to mac80211's code requiring 80 MHz support.

Remove the VHT capabilities from 2.4GHz for now. If mac80211
gets extended to use the (likely Broadcom) vendor IEs for it
and handles the lack of 80 MHz support, it can be added back.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-06 18:55:36 +03:00
Emmanuel Grumbach
5c08b0f502 iwlwifi: mvm: don't override the rate with the AMSDU len
The TSO code creates A-MSDUs from a single large send. Each
A-MSDU is an skb and skb->len doesn't include the number of
bytes which need to be added for the headers being added
(subframe header, TCP header, IP header, SNAP, padding).

To be able to set the right value in the Tx command, we
put the number of bytes added by those headers in
driver_data in iwl_mvm_tx_tso and use this value in
iwl_mvm_set_tx_cmd.

The problem by setting this value in driver_data is that
it overrides the ieee80211_tx_info. The bug manifested
itself when we send P2P related frames in CCK since the
rate in ieee80211_tx_info is zero-ed. This of course is
a violation of the P2P specification.

To fix this, copy the original ieee80211_tx_info to the
stack and pass it to the functions which need it.
Assign the number of bytes added by the headers to the
driver_data inside the skb itself.

Fixes: a6d5e32f24 ("iwlwifi: mvm: send large SKBs to the transport")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2016-05-04 20:59:55 +03:00
Jes Sorensen
e1ca790c8a rtl8xxxu: Remove the now obsolete mbox_ext_reg info from rtl8xxxu_fileops
With two different h2c_cmd() functions, mbox_ext_reg and
mbox_ext_width are no longer needed.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:24 +03:00
Jes Sorensen
27c7e89ea7 rtl8xxxu: rtl8xxxu_prepare_calibrate() is never used on gen1
Rename it to rtl8xxxu_gen2_prepare_calibrate() and remove the calls to
it from rtl8xxxu_gen1_phy_iq_calibrate()

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:23 +03:00
Jes Sorensen
9c0343d4f4 rtl8xxxu: Split rtl8723a_h2c_cmd() into a gen1 and a gen2 version
The H2C API is completely different between gen1 and gen2 parts, so
there is little point trying to treat this as a generic function. All
calls to *_h2c_cmd() will always come from a gen1 or a gen2 specific
function.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:22 +03:00
Jes Sorensen
993dd9b425 rtl8xxxu: Rename rtl8723a_disabled_to_emu() to rtl8xxxu_disabled_to_emu()
This function is generic to most of the chips, so change the name to
reflect this.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:21 +03:00
Jes Sorensen
a46b099ca7 rtl8xxxu: rename rtl8723a_channel_group() to rtl8xxxu_gen1_channel_to_group()
This function is generic for most (if not all) gen1 parts, so rename
it to reflect this.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:20 +03:00
Jes Sorensen
97db5a87b0 rtl8xxxu: Rename rtl8723a_stop_tx_beacon() to rtl8xxxu_stop_tx_beacon()
There is nothing 8723au specific about this function, so rename it to
reflect this.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:19 +03:00
Jes Sorensen
181725dd4f rtl8xxxu: move rtl8188[cr] and rtl8192c related code into rtl8xxxu_8192c.c
This moves the code for rtl8188c, rtl8188r, and rtl8192c into it's own
file. This is purely a code moving exercise, there is no change to the
code itself.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:18 +03:00
Jes Sorensen
20e3b2e97e rtl8xxxu: move rtl8723a related code into rtl8xxxu_8723a.c
This moves the rtl8723a code into it's own file. This is purely a code
moving exercise, no code changes.

This device specific file is a lot smaller since the gen1 chips
(8723a, 8188c, 8188r, 8192c) share a lot more common code than the
gen2 chips.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:17 +03:00
Jes Sorensen
6c46ca3b5f rtl8xxxu: move rtl8723b related code into rtl8xxxu_8723b.c
This moves the rtl8723b code into it's own file. This is purely a code
moving exercise, no functional changes. This did expose
rtl723a_h2c_cmd() as a function that should be refactored into a gen1
and a gen2 version.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:15 +03:00
Jes Sorensen
599119f683 rtl8xxxu: move rtl8192e related code into rtl8xxxu_8192e.c
This moves the rtl8192e code into it's own file. This is purely a code
moving exercise, no code changes.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:14 +03:00
Jes Sorensen
6c60e65cd0 rtl8xxxu: Rename rtl8xxxu.c to rtl8xxxu_core.c
This renames the core file to rtl8xxxu_core.c in order to allow us to
keep the module nake rtl8xxxu.ko when refactoring the code into
multiple files.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:07:10 +03:00
Denys Vlasenko
aae555d302 rtlwifi: rtl818x: Deinline indexed IO functions, save 21568 bytes
rtl818x_ioread8_idx: 151 bytes, 29 calls
rtl818x_ioread16_idx: 151 bytes, 11 calls
rtl818x_ioread32_idx: 151 bytes, 5 calls
rtl818x_iowrite8_idx: 157 bytes, 117 calls
rtl818x_iowrite16_idx: 158 bytes, 74 calls
rtl818x_iowrite32_idx: 157 bytes, 22 calls

Each of these functions has a pair of mutex lock/unlock ops,
both of these ops perform atomic updates of memory (on x86, it boils down to
"lock cmpxchg %reg,mem" insn), which are 4-8 times more expensive than call+return.

    text     data      bss       dec     hex filename
95894242 20860288 35991552 152746082 91ab862 vmlinux_before
95872674 20860320 35991552 152724546 91a6442 vmlinux

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
CC: Larry Finger <Larry.Finger@lwfinger.net>
CC: Chaoming Li <chaoming_li@realsil.com.cn>
CC: linux-wireless@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-05-03 13:05:14 +03:00
David S. Miller
ede00a5ceb wireless-drivers patches for 4.7
Major changes:
 
 brcmfmac
 
 * add support for nl80211 BSS_SELECT feature
 
 mwifiex
 
 * add platform specific wakeup interrupt support
 
 ath10k
 
 * implement set_tsf() for 10.2.4 branch
 * remove rare MSI range support
 * remove deprecated firmware API 1 support
 
 ath9k
 
 * add module parameter to invert LED polarity
 
 wcn36xx
 
 * fixes to get the driver properly working on Dragonboard 410c
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Merge tag 'wireless-drivers-next-for-davem-2016-05-02' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers patches for 4.7

Major changes:

brcmfmac

* add support for nl80211 BSS_SELECT feature

mwifiex

* add platform specific wakeup interrupt support

ath10k

* implement set_tsf() for 10.2.4 branch
* remove rare MSI range support
* remove deprecated firmware API 1 support

ath9k

* add module parameter to invert LED polarity

wcn36xx

* fixes to get the driver properly working on Dragonboard 410c
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03 00:35:16 -04:00
Iyappan Subramanian
2a37daa634 drivers: net: xgene: Get channel number from device binding
This patch gets ethernet to CPU channel (prefetch buffer number) from
the newly added 'channel' property, thus decoupling Linux driver from
resource management.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-02 16:47:54 -04:00
Sudarsana Reddy Kalluru
16f46bf054 qede: add implementation for internal loopback test.
This patch adds the qede implementation for internal loopback test.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-02 00:16:39 -04:00
Sudarsana Reddy Kalluru
3044a02eeb qede: add support for selftests.
This patch adds the qede ethtool support for the following tests:
- interrupt test
- memory test
- register test
- clock test

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-02 00:16:39 -04:00
Sudarsana Reddy Kalluru
03dc76ca1e qed: add infrastructure for device self tests.
This patch adds the functionality and APIs needed for selftests.
It adds the ability to configure the link-mode which is required for the
implementation of loopback tests. It adds the APIs for clock test,
register test, interrupt test and memory test.

Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-02 00:16:39 -04:00
Andrew Lunn
158bc065f2 net: dsa: mv88e6xxx: replace ds with ps where possible
The dsa_switch structure ds is actually needed in very few places,
mostly during setup of the switch. The private structure ps is however
needed nearly everywhere. Pass ps, not ds internally.

[vd: rebased Andrew's patch.]

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-02 00:16:23 -04:00
David S. Miller
8cd14ccbfd Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2016-05-01

This series contains updates to i40e and i40evf.

The theme of this series is code reduction, with several code cleanups in
this series.  Starting with Neerav's removal of the code that implemented
the HMC AQ APIs and calls, since they are now obsolete and not supported
by firmware.

Anjali changes the default of VFs to make sure they are not trusted or
privileged until its explicitly set for trust through the new NDO op
interface.  Also limited the number of MAC and VLAN addresses a VF can
add if it is untrusted/privileged.

Carolyn syncs the VF code for the changes made to the PF for the RSS
hash tuple settings, which ends up cleaning up much of the existing code.

Jesse cleans up compiler warnings which were found with gcc's W=2 option.
Then removed duplicate code, especially since only one copy was actually
being used.

Jacob addresses an issue which was found when testing GCC 6's which
happens to produce new warnings when you left shift a signed value
beyond the storage sizeof the type.  The converts i40e & i40evf to use
the BIT() macro more consistently.

Alex actually bucks the trend of code removal by adding support for
both drivers to use GSO_PARTIAL so that segmentation of frames with
checksums enabled in outer headers is supported.  Fortunately it does
not take much to add this support!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-01 23:38:49 -04:00
Marek Vasut
70e927b98b mdio_bus: Fix MDIO bus scanning in __mdiobus_register()
Since commit b74766a0a0 ("phylib: don't return NULL
from get_phy_device()") in linux-next, phy_get_device() will return
ERR_PTR(-ENODEV) instead of NULL if the PHY device ID is all ones.

This causes problem with stmmac driver and likely some other drivers
which call mdiobus_register(). I triggered this bug on SoCFPGA MCVEVK
board with linux-next 20160427 and 20160428. In case of the stmmac, if
there is no PHY node specified in the DT for the stmmac block, the stmmac
driver ( drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c function
stmmac_mdio_register() ) will call mdiobus_register() , which will
register the MDIO bus and probe for the PHY.

The mdiobus_register() resp. __mdiobus_register() iterates over all of
the addresses on the MDIO bus and calls mdiobus_scan() for each of them,
which invokes get_phy_device(). Before the aforementioned patch, the
mdiobus_scan() would return NULL if no PHY was found on a given address
and mdiobus_register() would continue and try the next PHY address. Now,
mdiobus_scan() returns ERR_PTR(-ENODEV), which is caught by the
'if (IS_ERR(phydev))' condition and the loop exits immediately if the
PHY address does not contain PHY.

Repair this by explicitly checking for the ERR_PTR(-ENODEV) and if this
error comes around, continue with the next PHY address.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-01 20:50:08 -04:00
Alexander Duyck
1c7b4a23d1 i40e/i40evf: Add support for GSO partial with UDP_TUNNEL_CSUM and GRE_CSUM
This patch makes it so that i40e and i40evf can use GSO_PARTIAL to support
segmentation for frames with checksums enabled in outer headers.  As a
result we can now send data over these types of tunnels at over 20Gb/s
versus the 12Gb/s that was previously possible on my system.

The advantage with the i40e parts is that this offload is mostly
transparent as the hardware still deals with the inner and/or outer IPv4
headers so the IP ID is still incrementing for both when this offload is
performed.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:16 -07:00
Jacob Keller
ae63bff0d7 i40evf: make use of BIT() macro to avoid signed left shift
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:08 -07:00
Jacob Keller
2101bac2d4 i40e: make use of BIT() macro to prevent left shift of signed values
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:08 -07:00
Jacob Keller
dcb57456e7 i40e/i40evf: fix I40E_MASK signed shift overflow warnings
GCC 6 has a new warning which will display when you attempt to left
shift a signed value beyond the storage size of the type. I40E_MASK
generates a mask value for 32bit registers. Properly typecast the mask
value and place the values in parenthesis to prevent macro expansion
issues.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:08 -07:00
Harshitha Ramamurthy
5a6fc256e7 i40e/i40evf : Bump driver version from 1.5.5 to 1.5.10
Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:07 -07:00
Catherine Sullivan
a3aa5036cf i40e: Update device ids for X722
Add a device ID for X722.

Change-Id: I574f2345ab341de98a6a1c212d0603af853e48b0
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:07 -07:00
Jesse Brandeburg
de38fef610 i40e: Drop extra copy of function
i40e_release_rx_desc was in two files, but was only used
and needed in txrx.c.  Get rid of the extra copy.

Change-Id: I86e18239aa03531fc198b6c052847475084a9200
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:06 -07:00
Jesse Brandeburg
a1b5a24fcc i40e: Use consistent type for vf_id
The driver was all over the place using signed or unsigned types
for vf_id, when it should always be signed.

This fixes warnings of type unsafe comparisons from gcc with W=2.

Change-Id: I2cb681f83d0f68ca124d2e4131e4ac0d9f8a6b22
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:06 -07:00
Jesse Brandeburg
cdc3d93257 i40e: PTP - avoid aggregate return warnings
Aggregate return warnings are when struct types are returned
and must be copied to the lvalue with a struct copy by the compiler.

This fixes warnings of type aggregate-return from gcc with W=2.

Change-Id: I896b1bf514544bf0faeb458869d79914b9f1b168
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:06 -07:00
Catherine Sullivan
3ed439c56e i40e: Fix uninitialized variable
We have an uninitialized variable warning for valid_len for one case in
validate_vf_mesg. To fix this, just initialize it to 0 at the top of the
function and remove all of the now redundant assignments to 0 in the
individual cases.

Change-Id: Iacbd97f4c521ed8d662eef803a598d8707708cfd
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:05 -07:00
Carolyn Wyborny
b29699b399 i40evf: RSS Hash Option parameters
This patch syncs the VF code for the changes made to the PF for the RSS
hash tuple settings.  Since the VF still cannot change the RSS hash
settings, change the code to make this clear to the user.  Previously,
the default settings were returned in this function. However, the
default can be changed by the PF so this does not make sense anymore.

Change-Id: I085eaf005fc7978b440d2a1bf2b2dd7cadaff39b
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:05:05 -07:00
Neerav Parikh
2b79c58d80 i40e: Remove HMC AQ API implementation
Remove the code that implements the HMC AQ APIs and call these APIs.
This is done because these are obsolete APIs and are not supported
by firmware.

Change-ID: I5d771d8f37c3e16e7b0a972ff9b27e75aa2d05d4
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:03:55 -07:00
Anjali Singhai Jain
a856b5cb83 i40e: Prevent falling to promiscuous if the VF is not trusted
With this change a non trusted VF can never fall to promiscuous
mode when there is no room for a MAC/VLAN filter.

Change-Id: I8a155aa25c0bcdc6093414920c9ade4ee0bd20e8
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:03:37 -07:00
Anjali Singhai Jain
5f527ba962 i40e: Limit the number of MAC and VLAN addresses that can be added for VFs
If the VF is privileged/trusted it can do as it may please including
but not limited to hogging resources and playing unfair.
But if the VF is not privileged/trusted it still can add some number
(8) of MAC and VLAN addresses.
Other restrictions with respect to Port VLAN and normal VLAN still apply
to not privileged/trusted VF.

Change-Id: I3a9529201b184c8873e1ad2e300aff468c9e6296
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 17:03:03 -07:00
Anjali Singhai Jain
692fb0a75e i40e: Change the default for VFs to be not privileged
Make sure a VF is not trusted/privileged until its explicitly
set for trust through the new NDO op interface.

Change-Id: I476385c290d2b4901d8fceb29de43546accdc499
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01 14:07:20 -07:00
Maor Gottlieb
45bf454ae8 net/mlx5e: Enabling aRFS mechanism
Accelerated RFS requires that ntuple filtering is enabled via
ethtool and driver supports ndo_rx_flow_steer.
When the ntuple filtering is enabled, we modify the l3_l4 ttc
rules to point on the aRFS flow tables and when the filtering
is disabled, we modify the l3_l4 ttc rules to point on the RSS
TIRs.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:12 -04:00
Maor Gottlieb
18c908e477 net/mlx5e: Add accelerated RFS support
Implement ndo_rx_flow_steer ndo.
A new flow steering rule will be composed from the
skb 4-tuple and added to the hardware aRFS flow table.

Each rule is stored in an internal hash table, if such
skb 4-tuple rule already exists we update the corresponding
hardware steering rule with the new destination.

For garbage collection rps_may_expire_flow will be
invoked for a limited amount of old rules upon any
ndo_rx_flow_steer invocation.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:11 -04:00
Maor Gottlieb
1cabe6b096 net/mlx5e: Create aRFS flow tables
Create the following four flow tables for aRFS usage:
1. IPv4 TCP - filtering 4-tuple of IPv4 TCP packets.
2. IPv6 TCP - filtering 4-tuple of IPv6 TCP packets.
3. IPv4 UDP - filtering 4-tuple of IPv4 UDP packets.
4. IPv6 UDP - filtering 4-tuple of IPv6 UDP packets.

Each flow table has two flow groups: one for the 4-tuple
filtering (full match)  and the other contains * rule for miss rule.

Full match rule means a hit for aRFS and packet will be forwarded
to the dedicated RQ/Core, miss rule packets will be forwarded to
default RSS hashing.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:11 -04:00
Maor Gottlieb
5a7b27eb9c net/mlx5: Initializing CPU reverse mapping
Allocating CPU rmap and add entry for each IRQ.
CPU rmap is used in aRFS to get the RX queue number
of the RX completion interrupts.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:11 -04:00
Maor Gottlieb
33cfaaa8f3 net/mlx5e: Split the main flow steering table
Currently, the main flow table is used for two purposes:
One is to do mac filtering and the other is to classify
the packet l3-l4 header in order to steer the packet to
the right RSS TIR.

This design is very complex, for each configured mac address we
have to add eleven rules (rule for each traffic type), the same if the
device is put to promiscuous/allmulti mode.
This scheme isn't scalable for future features like aRFS.

In order to simplify it, the main flow table is split to two flow
tables:
1. l2 table - filter the packet dmac address, if there is a match
we forward to the ttc flow table.

2. TTC (Traffic Type Classifier) table - classify the traffic
type of the packet and steer the packet to the right TIR.

In this new design, when new mac address is added, the driver adds
only one flow rule instead of eleven.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:11 -04:00
Maor Gottlieb
acff797cd1 net/mlx5e: Refactor mlx5e flow steering structs
Slightly refactor and re-order the flow steering structs,
tables and data-bases for better self-containment and
flexibility to add more future steering phases
(tables/rules/data bases) e.g: aRFS.

Changes:
1. Move the vlan DB and address DB into their table structs.
2. Rename steering table structs to unique format: mlx5e_*_table,
e.g: mlx5e_vlan_table.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:10 -04:00
Maor Gottlieb
13de6c106c net/mlx5: Support different attributes for priorities in namespace
Currently, namespace could be initialized only
with priorities with the same attributes.
Add support to initialize namespace with priorities
with different attributes(e.g. different number of levels).

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:10 -04:00
Maor Gottlieb
d63cd28608 net/mlx5: Add user chosen levels when allocating flow tables
Currently, consumers of the flow steering infrastructure can't
choose their own flow table levels and are limited to one
flow table per level. This just waste levels.
Instead, we introduce here the possibility to use multiple
flow tables in a level. The user is free to connect these
flow tables, while following the rule (FTEs in FT of level x
could only point to FTs of level y where y > x).

In addition this patch switch the order of the create/destroy
flow tables of the NIC(vlan and main).

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:09 -04:00
Maor Gottlieb
a257b94a18 net/mlx5: Set number of allowed levels in priority
Refactors the flow steering namespace creation,
by changing the name num_fts to num_levels.
When new flow table is created, the driver assign new level
to this flow table therefore the meaning is equivalent.
Since downstream patches will introduce the ability to create more
than one flow table per level, the name num_fts is no
longer accurate.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:09 -04:00
Maor Gottlieb
d745098ced net/mlx5: Introduce modify flow rule destination
This API is used for modifying the flow rule destination.
This is needed for modifying the pointed flow table by the
traffic type classifier rules to point on the aRFS tables.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:08 -04:00
Tariq Toukan
1da366964e net/mlx5e: Direct TIR per RQ
Introduce new TIRs for direct access per RQ.
Now we have 2 available kinds of TIRs:
	- indirect TIR per traffic type, each points to one RQT (RSS RQT)
          same as before.
	- New direct TIR per RQ, each points to RQT with a size of one
          that forwards packets to that RQ only.

Driver will open max channels (num cores) direct TIRs by default,
they will be filled with the actual RQs once channels are allocated.

Needed for downstream aRFS and ethtool direct steering functionalities.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:08 -04:00
Matthew Finlay
01a14098d3 net/mlx5e: Call vxlan_get_rx_port() with rtnl lock
Hold the rtnl lock when calling vxlan_get_rx_port().

Fixes: b7aade1548 ("vxlan: break dependency with netdev drivers")
Signed-off-by: Matthew Finlay <matt@mellanox.com>
Reported-by: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:29:08 -04:00
Michael Heimpold
2dd355a007 net: ethernet: enc28j60: add device tree support
The following patch adds the required match table for device tree support
(and while at, fix the indent). It's also possible to specify the
MAC address in the DT blob.

Also add the corresponding binding documentation file.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:23:02 -04:00
Michael Heimpold
2957a28a0e net: ethernet: enc28j60: support half-duplex SPI controllers
The current spi_read_buf function fails on SPI host masters which
are only half-duplex capable. Splitting the Tx and Rx part solves
this issue.

Tested on Raspberry Pi (full duplex) and I2SE Duckbill (half duplex).

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:23:02 -04:00
Guillaume Nault
96d934c70d ppp: add rtnetlink device creation support
Define PPP device handler for use with rtnetlink.
The only PPP specific attribute is IFLA_PPP_DEV_FD. It is mandatory and
contains the file descriptor of the associated /dev/ppp instance (the
file descriptor which would have been used for ioctl(PPPIOCNEWUNIT) in
the ioctl-based API). The PPP device is removed when this file
descriptor is released (same behaviour as with ioctl based PPP
devices).

PPP devices created with the rtnetlink API behave like the ones created
with ioctl(PPPIOCNEWUNIT). In particular existing ioctls work the same
way, no matter how the PPP device was created.
The rtnl callbacks are also assigned to ioctl based PPP devices. This
way, rtnl messages have the same effect on any PPP devices.
The immediate effect is that all PPP devices, even ioctl-based
ones, can now be removed with "ip link del".

A minor difference still exists between ioctl and rtnl based PPP
interfaces: in the device name, the number following the "ppp" prefix
corresponds to the PPP unit number for ioctl based devices, while it is
just an unrelated incrementing index for rtnl ones.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:09:44 -04:00
Guillaume Nault
7d9f0b4874 ppp: define reusable device creation functions
Move PPP device initialisation and registration out of
ppp_create_interface().
This prepares code for device registration with rtnetlink.

While there, simplify the prototype of ppp_create_interface():

  * Since ppp_dev_configure() takes care of setting file->private_data,
    there's no need to return a ppp structure to ppp_unattached_ioctl()
    anymore.

  * The unit parameter is made read/write so that ppp_create_interface()
    can tell which unit number has been assigned.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 16:09:44 -04:00
Alexandre TORGUE
ac1f74a7fc net: ethernet: stmmac: update MDIO support for GMAC4
On new GMAC4 IP, MAC_MDIO_address register has been updated, and bitmaps
changed. This patch takes into account those changes.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 15:14:24 -04:00
Jiri Benc
65226ef8ea vxlan: fix initialization with custom link parameters
Commit 0c867c9bf8 ("vxlan: move Ethernet initialization to a separate
function") changed initialization order and as an unintended result, when the
user specifies additional link parameters (such as IFLA_ADDRESS) while
creating vxlan interface, those are overwritten by vxlan_ether_setup later.

It's necessary to call ether_setup from withing the ->setup callback. That
way, the correct parameters are set by rtnl_create_link later. This is done
also for VXLAN-GPE, as we don't know the interface type yet at that point,
and changed to the correct interface type later.

Fixes: 0c867c9bf8 ("vxlan: move Ethernet initialization to a separate function")
Reported-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Tested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 15:08:56 -04:00
Hariprasad Shenai
ae7b757622 cxgb4vf: Add support to enable logging of firmware mailbox commands for VF
Add new /sys/kernel/debug/ support to dump firmware mailbox commands
and replies for debugging purpose.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 13:41:46 -04:00
Hariprasad Shenai
7f080c3f2f cxgb4: Add support to enable logging of firmware mailbox commands
Add new /sys/kernel/debug/ support to dump a firmware mailbox command
issued and replies for debugging purpose.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 13:41:46 -04:00
Yisen.Zhuang\(Zhuangyuzeng\)
0211b8fb5d net: hns: change port-id property to reg property in dsaf port node
Indexes should generally be avoided. So we use reg rather than port-id to
index ports.

Signed-off-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 13:39:03 -04:00
Yisen.Zhuang\(Zhuangyuzeng\)
1ffdfac99f net: hns: remove cpld-ctrl-reg and add cell in the cpld-syscon property
Because cpld-ctrl-reg property is offset base on cpld-syscon property,
we make it as a cell in the cpld-syscon property.

Signed-off-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29 13:39:02 -04:00
Mahesh Bandewar
494e8489db ipvlan: Fix failure path in dev registration during link creation
When newlink creation fails at device-registration, the port->count
is decremented twice. Francesco Ruggeri (fruggeri@arista.com) found
this issue in Macvlan and the same exists in IPvlan driver too.

While fixing this issue I noticed another issue of missing unregister
in case of failure, so adding it to the fix which is similar to the
macvlan fix by Francesco in commit 3083796075 ("macvlan: fix failure
during registration v3")

Reported-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
CC: Eric Dumazet <edumazet@google.com>
CC: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-28 17:23:08 -04:00
françois romieu
222e4d0b13 pch_gbe: replace private tx ring lock with common netif_tx_lock
pch_gbe_tx_ring.tx_lock is only used in the hard_xmit handler and
in the transmit completion reaper called from NAPI context.

Compile-tested only. Potential victims Cced.

Someone more knowledgeable may check if pch_gbe_tx_queue could
have some use for a mmiowb.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Cress <andy.cress@us.kontron.com>
Cc: bryan@fossetcon.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-28 17:19:58 -04:00
Arnd Bergmann
6b87663fbe net/mlx5e: avoid stack overflow in mlx5e_open_channels
struct mlx5e_channel_param is a large structure that is allocated
on the stack of mlx5e_open_channels, and with a recent change
it has grown beyond the warning size for the maximum stack
that a single function should use:

mellanox/mlx5/core/en_main.c: In function 'mlx5e_open_channels':
mellanox/mlx5/core/en_main.c:1325:1: error: the frame size of 1072 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

The function is already using dynamic allocation and is not in
a fast path, so the easiest workaround is to use another kzalloc
for allocating the channel parameters.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: d3c9bc2743 ("net/mlx5e: Added ICO SQs")
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-28 16:46:59 -04:00
Jason Wang
3df97ba830 tuntap: calculate rps hash only when needed
There's no need to calculate rps hash if it was not enabled. So this
patch export rps_needed and check it before trying to get rps
hash. Tests (using pktgen to inject packets to guest) shows this can
improve pps about 13% (when rps is disabled).

Before:
~1150000 pps
After:
~1300000 pps

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
----
Changes from V1:
- Fix build when CONFIG_RPS is not set
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-28 16:38:54 -04:00
David S. Miller
2995aea5b6 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2016-04-27

This series contains updates to i40e and i40evf.

Alex Duyck cleans up the feature flags since they are becoming pretty
"massive", the primary change being that we now build our features list
around hw_encap_features.  Added support for IPIP and SIT offloads,
which should improvement in throughput for IPIP and SIT tunnels with
the offload enabled.

Mitch adds support for configuring RSS on behalf of the VFs, which removes
the burden of dealing with different hardware interfaces from the VF
drivers and improves future compatibility.  Fix to ensure that we do not
panic by checking that the vsi_res pointer is valid before dereferencing
it, after which we can drink beer and eat peanuts.

Shannon does come housekeeping in i40e_add_fdir_ethtool() in preparation
for more cloud filter work.  Added flexibility to the nvmupdate
facility by adding the ability to specify an AQ event opcode to wait on
after Exec_AQ request.

Michal adds device capability which defines if an update is available and
if a security check is needed during the update process.

Kamil just adds a device id to support X722 QSFP+ device.

Greg fixes an issue where a mirror rule ID may be zero, so do not return
invalid parameter when the user passes in a zero for a rule ID.  Adds
support to steer packets to VSIs by VLAN tag alone while being in
promiscuous mode for multicast and unicast MAC addresses.

Jesse fixes the driver from offloading the VLAN tag into the skb any
time there was a VLAN tag and the hardware stripping was enabled, to
making sure it is enabled before put_tag.

v2: Dropped patch 8 ("i40e: Allow user to change input set mask for flow
    director") while Kiran reworks a more generalized solution based
    on feedback from David Miller.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-27 21:59:08 -04:00
Akinobu Mita
35ef7d689d net: w5100: support W5500
This adds support for W5500 chip.

W5500 has similar register and memory organization with W5100 and W5200.
There are a few important differences listed below but it is still
possible to share common code with W5100 and W5200.

* W5500 register and memory are organized by multiple blocks.  Each one
is selected by 16bits offset address and 5bits block select bits.

But the existing register access operations take u16 address.  This change
extends the addess by u32 address and put offset address to lower 16bits
and block select bits to upper 16bits.

This change also adds the offset addresses for socket register and TX/RX
memory blocks to the driver private data structure in order to reduce
conditional switches for each chip.

* W5500 has the different register offset for socket interrupt mask
register.  Newly added internal functions w5100_enable_intr() and
w5100_disable_intr() take care of the diffrence.

* W5500 has the different register offset for retry time-value register.
But this register is only used to verify that the reset value is correctly
read at initialization.  So move the verification to w5100_hw_reset()
which already does different things for different chips.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Mike Sinkovsky <msink@permonline.ru>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-27 21:55:45 -04:00
Anjali Singhai Jain
47d3483988 i40evf: Add driver support for promiscuous mode
Add necessary Linux Ethernet driver support for promiscuous mode
operation. Add a flag so the VF knows it is in promiscuous mode
and two state flags to discreetly track multicast and unicast
promiscuous states.

Change-Id: Ib2f2dc7a7582304fec90fc917ebb7ded21ba1de4
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-27 13:06:01 -07:00
Anjali Singhai Jain
5676a8b9cd i40e: Add VF promiscuous mode driver support
Add infrastructure for Network Function Virtualization VLAN tagged
packet steering feature.

Change-Id: I9b873d8fcc253858e6baba65ac68ec5b9363944e
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-27 13:05:57 -07:00
Greg Rose
6c41a76069 i40e: Add promiscuous on VLAN support
NFV use cases require the ability to steer packets to VSIs by VLAN tag
alone while being in promiscuous mode for multicast and unicast MAC
addresses.  These two new functions support that ability.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-27 13:05:53 -07:00
Jesse Brandeburg
a149f2c323 i40e/i40evf: Only offload VLAN tag if enabled
The driver was offloading the VLAN tag into the skb
any time there was a VLAN tag and the hardware stripping was
enabled.  Just check to make sure it's enabled before put_tag.

Change-Id: Ife95290c06edd9a616393b38679923938b382241
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-27 13:05:47 -07:00
Greg Rose
db0772782f i40e: Remove zero check
A mirror rule ID may be zero so do not return invalid parameter when the
user passes in a zero value for a rule ID.

Change-ID: I261b8c24725ce2c6ed32f859da81093dfcbe2970
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-27 13:05:41 -07:00
Kamil Krawczyk
bccf474435 i40e: Add DeviceID for X722 QSFP+
Change-ID: I1370fbc7774e815ac1ad56561e97488e829592fc
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-27 13:05:29 -07:00
Michal Kosiarz
68a1c5a777 i40e: Add device capability which defines if update is available
Add device capability which defines if update is available and security
check is needed during update process.

Change-ID: I380787c878275e1df18b39198df3ee3666342282
Signed-off-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-27 13:01:48 -07:00
David S. Miller
c0cc53162a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor overlapping changes in the conflicts.

In the macsec case, the change of the default ID macro
name overlapped with the 64-bit netlink attribute alignment
fixes in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-27 15:43:10 -04:00
Amitkumar Karwar
9d3f65b0c2 mwifiex: increase dwell time for active scan
It's been observed that sometimes AP's probe response is
received after scan duration gets completed for the channel.
This happens especially when wildcard scan is performed
along with specific SSID scan.
We will increase the time from 30 msecs to 40 msecs.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-27 16:52:56 +03:00
Amitkumar Karwar
1b499cb72f mwifiex: disable channel filtering feature in firmware
As 2.4Ghz channels are overlapping, sometimes AP responds to
probe request even if it's operating on neighbouring channel.
Currently firmware drops those scan entries, as current channel
doesn't match with APs channel.

This patch enables MWIFIEX_DISABLE_CHAN_FILT flag in scan
command to disable the feature so that better scan results
will be received in 2.4Ghz band.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-27 16:52:55 +03:00
Amitkumar Karwar
d286af9bf4 mwifiex: avoid querying wakeup reason when wowlan is disabled
In cfg80211 resume handler, we query wakeup reason from firmware and
report to cfg80211. if wowlan is disabled, connection is already
terminated during suspend. We don't need to query wakeup reason in this
case.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-27 16:52:00 +03:00
Amitkumar Karwar
df2288623e mwifiex: report wowlan wakeup reasons correctly
It's been observed that wakeup on GTK rekey failure wasn't reported
to cfg80211. This patch corrects the check so that all valid wakeup
reasons are reported.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-27 16:51:58 +03:00
Amitkumar Karwar
3f210e2f12 mwifiex: fix coding style
Redundant space in case statement is removed.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-27 16:51:57 +03:00
Marty Faltesek
8d666302df mwifiex: transmit packet stats incorrect.
tx_packets counter is incremented for aggregated packets, when it had
already been incremented for the aggregated packet's constituent
parts. Removing the extra count.

Signed-off-by: Marty Faltesek <mfaltesek@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-27 16:51:17 +03:00
Marty Faltesek
b977d305ad mwifiex: fw download does not release sdio bus during failure
Signed-off-by: Marty Faltesek <mfaltesek@google.com>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-27 16:50:17 +03:00
Marty Faltesek
bb28c28ee1 mwifiex: bridged packets cause wmm_tx_pending counter to go negative
When a packet is queued from the bridge, wmm_tx_pending is not
incremented, but when the packet is dequeued the counter is decremented.

Signed-off-by: Marty Faltesek <mfaltesek@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-04-27 16:49:35 +03:00