Commit Graph

31062 Commits

Author SHA1 Message Date
Dedy Lansky
2a0efe6a32 wil6210: support flashless device
Talyn device supports boot without flash.
Driver detects flashless device and in this case waits for ready indication
from HW machine (instead of bootloader ready indication). Also in this
case, MAC address is retrieved from OTP.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-25 07:32:08 +02:00
Maya Erez
4276d7711e wil6210: add support for Talyn AHB address map
Talyn memory has changed, areas were increased and shifted
to new locations.
Use the appropriate address map according to the device JTAG ID.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-25 07:32:01 +02:00
Maya Erez
4fe1fccecf wil6210: recognize Talyn JTAG ID
Add Talyn JTAG ID to the list of valid IDs
and identify this device as Talyn.

Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-25 07:31:54 +02:00
Maya Erez
10cd2d45f6 wil6210: add Talyn PCIe device ID
PCIe device ID has changed in Talyn.
Add this ID to wil6210_pcie_ids list to allow
recognition of Talyn device.

Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-25 07:31:46 +02:00
Felix Fietkau
3c0efb745a ath9k: discard undersized packets
Sometimes the hardware will push small packets that trigger a WARN_ON
in mac80211. Discard them early to avoid this issue.

Reported-by: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-25 07:30:49 +02:00
Arend Van Spriel
b69c1df472 brcmfmac: separate firmware errors from i/o errors
When using the firmware api it can fail simply because firmware does
not like the request or it fails due to issues in the host interface.
Currently, there is only a single error code which is confusing. So
adding a parameter to pass the firmware error separately and in case
of a firmware error always return -EBADE to user-space.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:02:39 +02:00
Arend Van Spriel
5242a5444e brcmfmac: assure bcdc dcmd api does not return value > 0
The protocol layer api defines callbacks for dongle commands.
Although not really well documented these should only return an
error code in case of an error, or 0 upon success. In the bcdc
protocol it can return value above 0 and we carry a fix in the
caller of the protocol layer api. This patch makes it adhere to
the intent of the api as described above.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:02:38 +02:00
Sergey Matyukevich
c93fe71c91 qtnfmac: remove redundant 'unlikely' checks
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:01:02 +02:00
Igor Mitsyanko
237d29f6ce qtnfmac: do not use bus mutex for events processing
Events processing requires locking of bus mutex, which is also used by
cfg80211 layer before calling several of cfg80211 callbacks. Since all
cfg80211 callbacks in qtnfmac driver also lock bus mutex, this
potentially may lead to a deadlock.

Do not use bus lock for event processing. Use RTNL lock instead to
serialize events and commands processing threads.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:55 +02:00
Igor Mitsyanko
f2cddd5469 qtnfmac: do not use mutexes in timer context
The function qtnf_scan_done makes use of mutexes which is wrong
since it may be called from timer context. Move scan timeout
handler from timer to deferred work.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:54 +02:00
Sergey Matyukevich
39845020b3 qtnfmac: fix STA disconnect procedure
STA does not reconnect to the same AP after disconnect. The reason is
that STA is marked as disconnected in cfg80211 disconnect callback.
This is too early since in this case qtnfmac event handler skips
cfg80211_disconnected call when processing disconnect event from
the card. As a result, wdev is left in an inconsistent state.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:50 +02:00
Sergey Matyukevich
01efff5262 qtnfmac: validate interface combinations on changes
Validate new interface combinations using wireless core checks when new
interface is added or when the type of existing interface is modified.
This is performed to make sure that new interface combination is supported
by hardware. As a result, invalid interface combinations are rejected early,
rather than passed to hardware with sometimes unpredictable results.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:45 +02:00
Sergey Matyukevich
537faf269d qtnfmac: modify supported interface combinations
Update existing code handling configuration of supported interface
combinations. Current implementation is not complete since it does
not report multiple interface combinations which are incompatible
with each other. Instead current implementation packs all the
supported combinations into single entry.

In fact currently qsr10g wireless card supports the following
two distinct interface combinations:

1. STA/repeater: 1 STA and/or 1 AP
   {
     { .max = 1, .types = NL80211_IFTYPE_AP},
     { .max = 1, .types = NL80211_IFTYPE_STA},
   }

2. AP/mBSS
   {
     { .max = 8, .types = NL80211_IFTYPE_AP},
   }

The list of supported configuration is reported by firmware during
wireless card bring-up. Communication protocol between firmware
and host has been updated accordingly in order to accommodate passing
multiple interface combination entries.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:40 +02:00
Vasily Ulyanov
0b419d0182 qtnfmac: report hardware/firmware information via ethtool
Enable reporting of qtnfmac hardware and firmware details
using ethtool command.

Signed-off-by: Vasily Ulyanov <vulyanov@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:34 +02:00
Vasily Ulyanov
5ec5b532da qtnfmac: get more hardware info from card
Various bits of hardware and firmware versions are useful for debug
and troubleshooting. Get more information from the wireless card.

Signed-off-by: Vasily Ulyanov <vulyanov@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:33 +02:00
Vasily Ulyanov
04b01affb8 qtnfmac: support 64-bit network interface stats
On 32-bit platforms packet counters are stored in a net_device_stats struct
as unsigned long integers. As a result, after some time of network activity
an overflow takes place in network packet counters. This patch makes use of
new structs for holding interface statistics.

Signed-off-by: Vasily Ulyanov <vulyanov@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:30 +02:00
Vasily Ulyanov
87affddef9 qtnfmac: fix warnings when mBSS setup is stopped
Virtual interface should be deleted after calling unregister_netdevice
since this function ends up with sending updown_intf command to card.

Signed-off-by: Vasily Ulyanov <vulyanov@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:26 +02:00
Vasily Ulyanov
33f9899234 qtnfmac: remove struct qlink_cmd_set_mac_acl
TLV is used to pass ACL data to firmware in start_ap cfg80211 callback.
Use the same approach in set_mac_acl cfg80211 callback.

Signed-off-by: Vasily Ulyanov <vulyanov@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 18:00:25 +02:00
Luis de Bethencourt
8054a275de rtl8xxxu: Fix trailing semicolon
The trailing semicolon is an empty statement that does no operation.
Removing it since it doesn't do anything.

Signed-off-by: Luis de Bethencourt <luisbg@kernel.org>
Acked-by: Jes Sorensen <Jes.Sorensen@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:45:17 +02:00
Ping-Ke Shih
a75f3eebfa rtlwifi: Add spec_ver to check whether use new rate-id or not
The field spec_ver is IC's specification mask for common code to do proper
process to specified IC. This commit add a field new rate ID for new
generation IC.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:40:24 +02:00
Ping-Ke Shih
be98db1556 rtlwifi: Add ratr_table for newer IC
New generation ICs will support 11ac, 5G, n-NSS, etc, so we define a set of
rate ID.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:40:16 +02:00
Ping-Ke Shih
ba3cca4d0c rtlwifi: 8822be has to report vht capability to mac80211
8822be is 2x2 11ac wifi chip, so report VHT capability to mac80211.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:40:15 +02:00
Ping-Ke Shih
8d73e53e8a rtlwifi: btcoex: add boolean variables dbg_mode
In files halbtc8822b1ant.c and halbtc8822b2ant.c that I will submit later,
two undesired directives named BT_8822B_1ANT_COEX_DBG and
BT_8822B_2ANT_COEX_DBG will be replaced by boolean variables.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:40:10 +02:00
Ping-Ke Shih
9177c33639 rtlwifi: btcoex: Add wifi_only series ops to control solo card
Originally, btcoex controls the antenna of combo card, but solo card
is also needed to setup properly. The new ops are named with suffix
'_wifi_only' opposited to original btc_ops, and new structures and
definitions are also introduced. The wifi_only oly contains four ops that
are initial variable, hw config, scan notify, and switch band notify.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:40:04 +02:00
Ping-Ke Shih
ee37384484 rtlwifi: btcoex: add scan_notify within ips_notify if RFON
Three steps of connection procedure are scan, enter/leave IPS, auth.
There is no scan between leaving IPS and sending auth, but btcoex use scan
as an important clue that indicates user is going to connect. So add scan
notifications in ips_notify to correct btcoex's state.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:39:58 +02:00
Ping-Ke Shih
f243bca138 rtlwifi: btcoex: Add variable ant_div_cfg to support antenna diversity
The variable will be used by btcoex of 8822be, so we prepare this variable
in advance.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:39:52 +02:00
Ping-Ke Shih
17bf851011 rtlwifi: btcoex: Add switch band notify for btc
BT shares 2.4G band but not 5G band, so inform current band to btcoex to
setup antenna properly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:39:50 +02:00
Ping-Ke Shih
66d0f9deba rtlwifi: btcoex: extend get_wifi_bw to support bandwidth 80M
The rtlwifi newer ICs support 80M bandwidth in 5G band, so extend
get_wifi_bw() to know bandwidth 80M that helps btcoex to make correct
decisions.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:39:47 +02:00
Lorenzo Bianconi
ba9797b2a7 mt76x2: init: disable all pending tasklets during device removal
There is a possible race in mt76x2_stop_hardware() since pre_tbtt and
dfs tasklets could run during driver cleanup. Fix it disabling all
pending tasklets during device removal

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:17:35 +02:00
Lorenzo Bianconi
634e99f0d4 mt76x2: dfs: take into account dfs region in mt76x2_dfs_init_params()
Do not enable DFS state machine if dfs region is set to NL80211_DFS_UNSET

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:15:34 +02:00
Lorenzo Bianconi
2070f3cc2c mt76x2: dfs: add set_domain handler
Add mt76x2_dfs_set_domain routine in order to properly reconfigure
pattern detector when DFS domain has been changed

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:15:33 +02:00
Lorenzo Bianconi
8c9f6491a3 mt76x2: dfs: avoid tasklet scheduling during mt76x2_dfs_init_params()
Substitute tasklet_kill with tasklet_disable/tasklet_enable in order to
guarantee dfs tasklet can not be executed during dfs parameter
initialization

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:15:33 +02:00
Felix Fietkau
2340523646 mt76: fix transmission of encrypted management frames
Hardware encryption seems to break encrypted unicast mgmt tx.
Unfortunately the hardware TXWI header does not have a bit to indicate
that a frame is software encrypted, so sw-encrypted frames need to use a
different WCID. For that to work, the CCMP PN needs to be generated in
software, which makes things a bit slower, so only do it for keys that
also need to tx management frames.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:12:40 +02:00
Lorenzo Bianconi
1cbbf69cc8 mt76x2: fix WMM parameter configuration
Fix hw queue configuration since mt76x2 devices use a reverse queue
enumeration respect to mac80211 one:
 - 0: AC_BE
 - 1: AC_BK
 - 2: AC_VI
 - 3: AC_VO

The issue can be reproduced sending two concurrent flow using
two separate queues:
 - VO: 20Mbps UDP traffic
 - BE: TCP traffic

In this scenario the UDP traffic will be blocked by the TCP one.
Fix it configuring properly WMM hw queue parameters

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Tested-by: Gaetano Catalli <gaetano.catalli@gmail.com>
Signed-off-by: Gaetano Catalli <gaetano.catalli@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-24 17:11:03 +02:00
David S. Miller
291040cd7e Merge tag 'mac80211-next-for-davem-2018-01-22' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:

====================
Less than a handful of changes:
 * possible memory leak fix in hwsim
 * speed up hwsim
 * add hwsim userspace rate control API
 * code cleanups
====================

A conflict was resolved in mac80211_hwsim.c, mostly of
the simple overlapping changes category.  One adding
a rhashtable and another adding a workqueue.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-22 09:36:37 -05:00
weiyongjun (A)
0ddcff49b6 mac80211_hwsim: fix possible memory leak in hwsim_new_radio_nl()
'hwname' is malloced in hwsim_new_radio_nl() and should be freed
before leaving from the error handling cases, otherwise it will cause
memory leak.

Fixes: ff4dd73dd2 ("mac80211_hwsim: check HWSIM_ATTR_RADIO_NAME length")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-01-22 14:03:29 +01:00
David S. Miller
8565d26bcb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The BPF verifier conflict was some minor contextual issue.

The TUN conflict was less trivial.  Cong Wang fixed a memory leak of
tfile->tx_array in 'net'.  This is an skb_array.  But meanwhile in
net-next tun changed tfile->tx_arry into tfile->tx_ring which is a
ptr_ring.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-19 22:59:33 -05:00
David S. Miller
8b7d828788 Merge tag 'wireless-drivers-next-for-davem-2018-01-19' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:

====================
wireless-drivers-next patches for 4.16

Final few patches before the merge window, nothing really special.

ath9k

* add MSI support (not enabled by default yet)

rtlwifi

* support A-MSDU in A-MPDU aggregation
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-19 10:26:53 -05:00
David S. Miller
9d383fbb04 Merge tag 'wireless-drivers-for-davem-2018-01-17' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:

====================
wireless-drivers fixes for 4.15

One last set of fixes for regression submitted during the last few days.

bcma & ssb

* fix older build problems which (apparently) recently became more
  frequent in certain MIPS configurations

brcmfmac

* continue driver initialisation even if CLM blob (firmware) file is
  not found
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-18 16:23:10 -05:00
Ping-Ke Shih
5f9066930b rtlwifi: Support A-MSDU in A-MPDU capability
Due to the fact that A-MSDU deaggregation is done in software,
we set this flag to support the A-MSDU in A-MPDU

Signed-off-by: Steven Ting <steventing@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-18 15:27:11 +02:00
Ping-Ke Shih
188b6b092e rtlwifi: btcoex: add rfe_type parameter to btcoex
btcoex configure antenna by rfe_type that is RF type programmed in efuse.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 17:09:26 +02:00
Ping-Ke Shih
b2283dad6b rtlwifi: btcoex: Add common function for qeurying BT information
This commit implement the common function to sort old features, and add
more new features that are get_supported_feature, get_supported_version,
get_ant_det_val, ble_scan_type, ble_scan_para, bt_dev_info,
forbidden_slot_val, afh_map and etc.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 17:09:17 +02:00
Larry Finger
3afb7da469 rtlwifi: btcoex: Remove typedef statements
Each of these typedefs are only referenced in a single location later
in this header. Thus, they are easily removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 17:09:16 +02:00
Ping-Ke Shih
40d9dd4f1c rtlwifi: btcoex: Remove global variables from btcoex
Remove global variables, so btcoexist can support multiple instances
simultaneously.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 17:09:15 +02:00
Ping-Ke Shih
a44709bba7 rtlwifi: btcoex: Add power_on_setting routine
After mac power-on sequence, wifi will start to work so notify btcoex the
event to configure registers especially related to antenna. This will not
only help to assign antenna but also to yield better user experience.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 17:09:15 +02:00
Tsang-Shian Lin
37e89a0e5a rtlwifi: unlink bss when un-association
When AP change bandwidth setting from 20M to 40M, STA may use old 20M AP
information to association with AP. Driver unlink bss in the
.bss_info_changed of ieee80211_ops to make sure that later scan can get
correct AP bandwidth capability.

Signed-off-by: Tsang-Shian Lin <thlin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 17:09:13 +02:00
Ping-Ke Shih
c8abbe79cc rtlwifi: fix scan channel 1 fail after IPS
If there is no connection, driver will enter IPS state. Meanwhile, it
fails to scan channel 1 by the command 'iw dev wlan0 scan freq 2412',
because hardware channel setting lose after IPS. Thus, restore channel
setting from hw->conf.channel set by last rtl_op_config().

Signed-off-by: Tim Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 17:09:10 +02:00
Ping-Ke Shih
a3fa3669d1 rtlwifi: Use mutex to replace spin_lock to protect IPS and LPS
Enter/leavel IPS and LPS are large critical section, and they can't use
sleep function because running in atomic-context, which own a spin_lock.
In commit ba9f93f82a ("rtlwifi: Fix enter/exit power_save"), it moves
LPS functions to thread-context, so this commit can simply change LPS's
spin lock to mutex.
Considering IPS functions, rtl_ips_nic_on() may be called by TX tasklet
(softirq-context) that check whether packet is auth frame. Fortunately,
current mac80211 will ask driver to leave IPS using op_config with
changed flag IEEE80211_CONF_CHANGE_IDLE, before issuing auth frame, so
IPS functions can run in thread-context and use mutex to protect critical
section, too.
Also, this commit removes some useless spin locks.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 17:09:10 +02:00
Lorenzo Bianconi
98051872fd mt76: fix possible NULL pointer dereferencing in mt76x2_mac_write_txwi()
Verify wcid is not NULL before dereferencing the pointer to initialize
txwi rate/power info

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 16:49:07 +02:00
Lorenzo Bianconi
99ac5327e9 mt76: fix possible NULL pointer dereferencing in mt76x2_ampdu_action()
Initialize mt76_txq pointer after ieee80211_txq pointer check.
Remove space after the pointer cast

Fixes: 7bc04215a6 ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-17 16:49:06 +02:00