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Commit Graph

665452 Commits

Author SHA1 Message Date
Juergen Beisert
a1292595e0 net: dsa: add new DSA switch driver for the SMSC-LAN9303
The SMSC/Microchip LAN9303 is an ethernet switch device with one CPU port
and two external ethernet ports with built-in phys.

This driver uses the DSA framework, but is currently only capable of
separating the two external ports. There is no offload support yet.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 13:48:54 -04:00
Juergen Beisert
e8fe177a62 net: dsa: add support for the SMSC-LAN9303 tagging format
To define the outgoing port and to discover the incoming port a regular
VLAN tag is used by the LAN9303. But its VID meaning is 'special'.

This tag handler/filter depends on some hardware features which must be
enabled in the device to provide and make use of this special VLAN tag
to control the destination and the source of an ethernet packet.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 13:48:54 -04:00
David S. Miller
6324805979 A single fix, for the MU-MIMO monitor mode, that fixes
bad SKB accesses if the SKB was paged, which is the case
 for the only driver supporting this - iwlwifi.
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Merge tag 'mac80211-for-davem-2017-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
A single fix, for the MU-MIMO monitor mode, that fixes
bad SKB accesses if the SKB was paged, which is the case
for the only driver supporting this - iwlwifi.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 13:36:42 -04:00
Greg Thelen
8dc7d11f1d net/mlx4: suppress 'may be used uninitialized' warning
gcc 4.8.4 complains that mlx4_SW2HW_MPT_wrapper() uses an uninitialized
'mpt' variable:
  drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_SW2HW_MPT_wrapper':
  drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:2802:12: warning: 'mpt' may be used uninitialized in this function [-Wmaybe-uninitialized]
     mpt->mtt = mtt;

I think this warning is a false complaint.  mpt is only used when
mr_res_start_move_to() return zero, and in all such cases it initializes
mpt.  But apparently gcc cannot see that.

Initialize mpt to avoid the warning.

Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 13:19:21 -04:00
David S. Miller
7b9f6da175 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
A function in kernel/bpf/syscall.c which got a bug fix in 'net'
was moved to kernel/bpf/verifier.c in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 10:35:33 -04:00
Haibo Chen
9f32784535 mmc: sdhci-esdhc-imx: increase the pad I/O drive strength for DDR50 card
Currently for DDR50 card, it need tuning in default. We meet tuning fail
issue for DDR50 card and some data CRC error when DDR50 sd card works.

This is because the default pad I/O drive strength can't make sure DDR50
card work stable. So increase the pad I/O drive strength for DDR50 card,
and use pins_100mhz.

This fixes DDR50 card support for IMX since DDR50 tuning was enabled from
commit 9faac7b95e ("mmc: sdhci: enable tuning for DDR50")

Tested-and-reported-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Cc: stable@vger.kernel.org # v4.4+
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-20 14:41:05 +02:00
Tomislav Požega
a0597834dc rt2800: fix mt7620 E2 channel registers
update RF register 47 and 54 values according to vendor driver

Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 14:00:54 +03:00
Tomislav Požega
4bd96b5d33 rt2800: fix mt7620 vco calibration registers
Use register values from init LNA function instead of the ones from
restore LNA function. Apply register values based on rx path
configuration.

Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 14:00:32 +03:00
Daniel Golle
2031badabf rt2800: do VCO calibration after programming ALC
Somehow AP doesn't come up and the first scan fails if we don't do
VCO calibration every time.
The vendor driver duplicates the VCO calibration function into the
channel switching logic, we can do the same with less duplication.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 14:00:00 +03:00
Daniel Golle
225a644aae rt2800: fix LNA gain assignment for MT7620
The base value used for MT7620 differs from Rt5392 which resulted in
quite bad RX signal quality. Fix this by using the correct base value as
well as the LNA calibration values for HT20.

Reported-by: Tom Psyborg <pozega.tomislav@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 13:59:59 +03:00
Jason Gerecke
6f107fab8f HID: wacom: Override incorrect logical maximum contact identifier
It apears that devices designed around Wacom's G11 chipset (e.g. Lenovo
ThinkPad Yoga 260, Lenovo ThinkPad X1 Yoga, Dell XPS 12 9250, Dell Venue
8 Pro 5855, etc.) suffer from a common issue in their HID descriptors.
The logical maximum is not updated for the "Contact Identifier" usage,
leaving it as just "1" despite these devices being capable of tracking
far more touches.

Commit 60a2218698 began ignoring usages with out-of-range values,
causing problems for devices based on this chipset. Touches after
the first will have an out-of-range Contact Identifier, and ignoring
that usage will cause the kernel to incorrectly slot each finger's
events (along with all the knock-on userspace effects that entails).

This commit checks for these buggy descriptors and updates the maximum
where required. Prior chipsets have used "255" as the maximum (and the
G11, at least, doesn't seem to actually use IDs outside the range of
1..CONTACTMAX) so continue using this value.

Cc: stable@vger.kernel.org
Fixes: 60a2218698 ("HID: wacom: generic: add support for touchring")
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-04-20 11:33:45 +02:00
Kalle Valo
0b16e0e98e Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for 4.12. Major changes:

ath9k

* add support for Dell Wireless 1601 PCI device

* add debugfs file to manually override noise floor

ath10k

* bump up FW API to 6 for a new QCA6174 firmware branch

wil6210

* support 8 kB RX buffers
2017-04-20 11:16:06 +03:00
Kalle Valo
500fc34f38 Another series of patches intended for v4.12. These are the changes:
* Heavy work for the A000 device series;
  * Some cleanup patches;
  * A few fixes;
  * Dynamic SAR support;
  * Geographical SAR support;
  * Support a few new PCI device IDs;
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Merge tag 'iwlwifi-next-for-kalle-2017-04-19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Another series of patches intended for v4.12.  These are the changes:

 * Heavy work for the A000 device series;
 * Some cleanup patches;
 * A few fixes;
 * Dynamic SAR support;
 * Geographical SAR support;
 * Support a few new PCI device IDs;
2017-04-20 11:01:23 +03:00
Yan-Hsuan Chuang
f9558f5fc8 rtlwifi: btcoex: 21a 2ant: wifi is linking action
When wifi is under scanning/linking/roaming, do not run the reset of the
coex mechanism because these activities are important for wifi, just run
the linking process and return.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:46 +03:00
Yan-Hsuan Chuang
67cbe62a27 rtlwifi: btcoex: 21a 2ant: just return when wifi is under ips
If wifi is in power saving mode, do nothing.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
  ---
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c | 6 ++++++
 1 file changed, 6 insertions(+)
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:46 +03:00
Yan-Hsuan Chuang
63a7e8109b rtlwifi: btcoex: 21a 2ant: do not limit rx agg size
For bt profiling, we do not need to limit the rx agg size.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:45 +03:00
Yan-Hsuan Chuang
97632f8c0a rtlwifi: btcoex: 21a 2ant: macro for bt rssi threshold
Using macro to control the bt threshold.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:45 +03:00
Yan-Hsuan Chuang
c129bc843b rtlwifi: btcoex: 21a 2ant: dec bt power according to bt rssi and set tdma
Check the bt rssi first and decrease it if the bt rssi is too high.
Then set the tdma and coex table.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:44 +03:00
Yan-Hsuan Chuang
f76184d024 rtlwifi: btcoex: 21a 2ant: notify fw the number of APs
Use h2c to tell the firmware if the number of AP is more than 10 or
not.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:44 +03:00
Yan-Hsuan Chuang
a4162ea71b rtlwifi: btcoex: 21a 2ant: monitor extra wifi rssi to examine network status
Here we monitor one more wifi rssi to check the status of the network
and set the coex table instead of the legacy way.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:43 +03:00
Yan-Hsuan Chuang
0fcad45bdb rtlwifi: btcoex: 21a 2ant: add multiport action for p2p/miracast
For p2p/miracast, the wifi may have multiple ports for different roles.
Under this, we need extra settings for turning off the tdma and proper
coex table parameters.

We monnitor the number of links on a port to determine if it is for
p2p/miracast or not.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:43 +03:00
Yan-Hsuan Chuang
137cc90f09 rtlwifi: btcoex: 21a 2ant: set tdma based on rssi state amd limit rx agg size
Monitor the rssi state to set the tdma and limit rx aggregation size to
fit the bt profiling.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:42 +03:00
Yan-Hsuan Chuang
f0557cf062 rtlwifi: btcoex: 21a 2ant: fix some coding style issues
Fix some ident and naming for linux coding style.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:42 +03:00
Yan-Hsuan Chuang
70a8adef71 rtlwifi: btcoex: 21a 2ant: more combinations of wifi/bt rssi state
For bt a2dp, we need to check more rssi state combinations to have
better voice quality.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:42 +03:00
Yan-Hsuan Chuang
10c2e1cc15 rtlwifi: btcoex: 21a 2ant: force wifi to use RF path A
Let the wifi use main antenna to have higher power.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:41 +03:00
Yan-Hsuan Chuang
124e50ff65 rtlwifi: btcoex: 21a 2ant: add threshold to examine bt rssi
The threshold is used to adjust the base line for the rssi state.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:41 +03:00
Yan-Hsuan Chuang
1a2534930e rtlwifi: btcoex: 21a 2ant: turn on sw dac swing and check if is sco_only
Use software dac swing and double check if it is sco_only to set the
tdma for voice quality.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:25:40 +03:00
Yan-Hsuan Chuang
3f775d5cee rtlwifi: btcoex: 21a 2ant: refine tdma duration adjust function
1. Add more cases to adjust the wifi duration and add a case with
the max interval of 3 for some future uses.

2. rename tdma_adj -> ps_tdma_du_adj to indicate that this member is
for power saving tdma duration adjustment

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:09 +03:00
Yan-Hsuan Chuang
20ec48e51d rtlwifi: btcoex: 21a 2ant: fix invalid argument passed
The dac swing level should be an unsigned 32-bit value rather than
boolean.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:09 +03:00
Yan-Hsuan Chuang
3506bc286a rtlwifi: btcoex: 21a 2ant: action for wifi is idle/linking/common
Depending on the state of wifi, we need to set different tdma and coex
table parameters to make wfi and bt coexist smoothly. Otherwise the
bt may have low sound quality or mouse lag, which mean bad user
experience. The same problem may occur on wifi also, if could disconnect
or lose some important packets.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:08 +03:00
Yan-Hsuan Chuang
4b76491926 rtlwifi: btcoex: 21a 2ant: tdma cases for low wifi/bt rssi
If the wifi or bt has low rssi, they need extra parameter settings for
the tdma.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:08 +03:00
Yan-Hsuan Chuang
8189d81890 rtlwifi: btcoex: 21a 2ant: slot time fine tune
Tune the wifi/bt slot time to get better performance.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:07 +03:00
Yan-Hsuan Chuang
8c670a1b1d rtlwifi: btcoex: 21a 2ant: let PTA circuit control the switch
Register 0xcb4 determines if the PTA circuit can control the swtich

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:07 +03:00
Yan-Hsuan Chuang
aae1e8f5a0 rtlwifi: btcoex: 21a 2ant: set coex table and tdma when bt inquiry
Instead of just setting the coex table directly, we check if the
wifi is under some important activity (scanning|roaming|linking) and
mark the packets as high priority in that case.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:07 +03:00
Yan-Hsuan Chuang
9153c11cef rtlwifi: btcoex: 21a 2ant: ignore wifi if it is at 5G band
When wifi is at 5G band, it does not intefere with 2.4G bt signal,
hence we can just ignore it and transmit normally as nothing happened.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:06 +03:00
Yan-Hsuan Chuang
3fd7ba4c76 rtlwifi: btcoex: 21a 2ant: check if wifi status changed
Monitor wifi status and check if it is changed.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:06 +03:00
Yan-Hsuan Chuang
d4acd81ed2 rtlwifi: btcoex: 21a 2ant: centralized control of coex table
Gather multiple coex table settings into a function coex_table_with_type()
and control the coex table according the type value as put in
switch-case expression.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:05 +03:00
Yan-Hsuan Chuang
d09199eb20 rtlwifi: btcoex: 21a 2ant: do not check wifi bandwidth
Remove workaround for HT40 issues for RF low pass filter.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:05 +03:00
Yan-Hsuan Chuang
d9158ea1d1 rtlwifi: btcoex: 21a 2ant: check power save state before pstdma
The power_save_state function checks the state of power saving.
For tdma settings, the wifi sends nullfunc to pretend enter power saving
and then bt can transmit. Hence the coex needs to check the power status
before set the pstdma function.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:04 +03:00
Yan-Hsuan Chuang
5a81969c1c rtlwifi: btcoex: 21a 2ant: suffer less tx penalty from retry
Change h2c parameter to decrease tx penalty.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:04 +03:00
Yan-Hsuan Chuang
7cc7f1a18b rtlwifi: btcoex: 21a 2ant: move from bt_stack_info to bt_link_info
Gather variables to the 8821a2ant coex structure.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:03 +03:00
Yan-Hsuan Chuang
aed6b11e4f rtlwifi: btcoex: 21a 2ant: finer adjustment of bt power
Originally we only increase/decrease bt power in a fixed power gap, this
patch makes us be able to modify bt power for multiple power gaps and we
can precisely adjust the bt power.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:03 +03:00
Yan-Hsuan Chuang
4b1f6eaac3 rtlwifi: btcoex: 21a 2ant: update bt profiling information
This function updates the information of bt profiling to help us decide
the network status and dispatch the resource properly.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:03 +03:00
Yan-Hsuan Chuang
eebc58782e rtlwifi: btcoex: 21a 2ant: monitor wifi counter to check network status
If there are a lot of low-rate packets, then the connection of wifi is
unstable. If so, we should switch resource to bt to have a higher
transmission quality, or wifi resource will be wasted

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:02 +03:00
Yan-Hsuan Chuang
4776d34907 rtlwifi: btcoex: 21a 2ant: monitor if bt is slave or not
We monitor the packet counter to guess if the bt is slave or not, and
when bt is slave, it may receive packet at any time, so we will have to
take care about it

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:02 +03:00
Yan-Hsuan Chuang
930d2bf242 rtlwifi: btcoex: 21a 2ant: limit rx aggregation size to avoid bt interrupt
Larger packets have higher opportunity to be interrupt by bt signal.
In order to shorten the transmission time, control the packet
aggregation size.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:24:01 +03:00
Brian Norris
bf30171b22 MAINTAINERS: update Amitkumar's email address
His email is bouncing, and he'd like to use this new one.

Cc: Amitkumar Karwar <amitkarwar@gmail.com>
Cc: Nishant Sarmukadam <nishants@marvell.com>
Cc: Ganapathi Bhat <gbhat@marvell.com>
Cc: Xinming Hu <huxm@marvell.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:22:28 +03:00
Brian Norris
fb9e67bee3 mwifiex: don't leak 'chan_stats' on reset
'chan_stats' is (re)allocated in _mwifiex_fw_dpc() ->
mwifiex_init_channel_scan_gap(), which is called whenever the device is
initialized -- at probe or at reset.

But we only free it in we completely unregister the adapter, meaning we
leak a copy of it during every reset.

Let's free it in the shutdown / removal paths instead (and in the
error-handling path), to avoid the leak.

Ideally, we can eventually unify much of mwifiex_shutdown_sw() and
mwifiex_remove_card() (way too much copy-and-paste) to reduce the burden
on bugfixes like this. But that's work for tomorrow.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:21:53 +03:00
Brian Norris
35e67d3d58 mwifiex: pcie: clear outstanding work when resetting
When we shut down the device (i.e., during 'reset'), we cancel any
outstanding work, but we don't clear any work-related flags. This can
cause problems if, e.g., we begin to queue a new firmware dump or card
reset while the other one is in progress. That might leave work_flags
with a stale value, and we might begin one of these *after* we've
completely reset the device. That doesn't make sense, because all
firmware context will have been lost by then.

This fixes some forms of cascading failures, where I:

(a) force a firmware dump (cat /sys/kernel/debug/mwifiex/mlan0/device_dump)
(b) run a Wifi scan in parallel (iw mlan0 scan)
(c) the scan times out due to (a) hogging the interface
(d) the command timeout triggers another firmware dump and a reset [*]
(e) the 2nd firmware dump flag persists across the reset
(f) as soon as the interface comes back up, we trigger the pending
    firmware dump
(g) subsequent commands time out again, while we are processing the
    firmware dump; return to (d)

[*] Note that automatic card_reset() support is not yet implemented for
the mwifiex PCIe driver, so we won't hit *exactly* this behavior yet.
But we can see similarly-confusing behaviors today.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:21:53 +03:00
Brian Norris
9ae3fbd109 mwifiex: reset timeout flag when resetting device
If we reset because of a command timeout, we should reset this flag.
Otherwise, we might erroneously think the next command after reset is
timing out, and trigger another reset.

The above behavior effectively neuters the automatic card_reset()
behavior, as it means we will never recover from a command timeout
properly (and in fact, we might enter an infinite loop:

  timeout -> reset -> (fake) timeout -> reset -> ...

This fixes a bug introduced with introduction of PCIe function level
reset support, but it was carried into the SDIO driver when it was
converted to use the same codepaths. And this is currently mostly a
problem only in the SDIO driver, because it's the only one with
automatic card_reset() support (e.g., on command timeout). But it will
be a problem for PCIe too, as I'm working on supporting automatic
card_reset() for PCIe.

Fixes: c742e623e9 ("mwifiex: sdio card reset enhancement")
Fixes: 4c5dae59d2 ("mwifiex: add PCIe function level reset support")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20 10:21:52 +03:00