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Sometimes, in yet unknown cases the wifi chip stops working. To allow a
watchdog in userspace to easily and quickly reset the wifi chip, add the
according functionality to userspace. A reset can then be triggered
via:
$ echo 1 > /sys/kernel/debug/ieee80211/phy0/ath9k/reset
The number of user resets can further be tracked in the row "User reset"
in the same file.
So far people usually used "iw scan" to fix ath9k chip hangs from
userspace. Which triggers the ath9k_queue_reset(), too. The reset file
however has the advantage of less overhead, which makes debugging bugs
within ath9k_queue_reset() easier.
Signed-off-by: Linus Lüssing <ll@simonwunderlich.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914192515.9273-2-linus.luessing@c0d3.blue
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When trying to set the noise floor via debugfs, a "data bus error"
crash like the following can happen:
[ 88.433133] Data bus error, epc == 80221c28, ra == 83314e60
[ 88.438895] Oops[#1]:
[ 88.441246] CPU: 0 PID: 7263 Comm: sh Not tainted 4.14.195 #0
[ 88.447174] task: 838a1c20 task.stack: 82d5e000
[ 88.451847] $ 0 : 00000000 00000030 deadc0de 83141de4
[ 88.457248] $ 4 : b810a2c4 0000a2c4 83230fd4 00000000
[ 88.462652] $ 8 : 0000000a 00000000 00000001 00000000
[ 88.468055] $12 : 7f8ef318 00000000 00000000 77f802a0
[ 88.473457] $16 : 83230080 00000002 0000001b 83230080
[ 88.478861] $20 : 83a1c3f8 00841000 77f7adb0 ffffff92
[ 88.484263] $24 : 00000fa4 77edd860
[ 88.489665] $28 : 82d5e000 82d5fda8 00000000 83314e60
[ 88.495070] Hi : 00000000
[ 88.498044] Lo : 00000000
[ 88.501040] epc : 80221c28 ioread32+0x8/0x10
[ 88.505671] ra : 83314e60 ath9k_hw_loadnf+0x88/0x520 [ath9k_hw]
[ 88.512049] Status: 1000fc03 KERNEL EXL IE
[ 88.516369] Cause : 5080801c (ExcCode 07)
[ 88.520508] PrId : 00019374 (MIPS 24Kc)
[ 88.524556] Modules linked in: ath9k ath9k_common pppoe ppp_async l2tp_ppp cdc_mbim batman_adv ath9k_hw ath sr9700 smsc95xx sierra_net rndis_host qmi_wwan pppox ppp_generic pl2303 nf_conntrack_ipv6 mcs7830 mac80211 kalmia iptable_nat ipt_REJECT ipt_MASQUERADE huawei_cdc_ncm ftdi_sio dm9601 cfg80211 cdc_subset cdc_ncm cdc_ether cdc_eem ax88179_178a asix xt_time xt_tcpudp xt_tcpmss xt_statistic xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_ecn xt_dscp xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_NETMAP xt_LOG xt_HL xt_FLOWOFFLOAD xt_DSCP xt_CLASSIFY usbserial usbnet usbhid slhc rtl8150 r8152 pegasus nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack
[ 88.597894] libcrc32c kaweth iptable_mangle iptable_filter ipt_ECN ipheth ip_tables hso hid_generic crc_ccitt compat cdc_wdm cdc_acm br_netfilter hid evdev input_core nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 l2tp_netlink l2tp_core udp_tunnel ip6_udp_tunnel xfrm6_mode_tunnel xfrm6_mode_transport xfrm6_mode_beet ipcomp6 xfrm6_tunnel esp6 ah6 xfrm4_tunnel xfrm4_mode_tunnel xfrm4_mode_transport xfrm4_mode_beet ipcomp esp4 ah4 tunnel6 tunnel4 tun xfrm_user xfrm_ipcomp af_key xfrm_algo sha256_generic sha1_generic jitterentropy_rng drbg md5 hmac echainiv des_generic deflate zlib_inflate zlib_deflate cbc authenc crypto_acompress ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common crc16 mii aead crypto_null cryptomgr crc32c_generic
[ 88.671671] crypto_hash
[ 88.674292] Process sh (pid: 7263, threadinfo=82d5e000, task=838a1c20, tls=77f81efc)
[ 88.682279] Stack : 00008060 00000008 00000200 00000000 00000000 00000000 00000000 00000002
[ 88.690916] 80500000 83230080 82d5fe22 00841000 77f7adb0 00000000 00000000 83156858
[ 88.699553] 00000000 8352fa00 83ad62b0 835302a8 00000000 300a00f8 00000003 82d5fe38
[ 88.708190] 82d5fef4 00000001 77f54dc4 77f80000 77f7adb0 c79fe901 00000000 00000000
[ 88.716828] 80510000 00000002 00841000 77f54dc4 77f80000 801ce4cc 0000000b 41824292
[ 88.725465] ...
[ 88.727994] Call Trace:
[ 88.730532] [<80221c28>] ioread32+0x8/0x10
[ 88.734765] Code: 00000000 8c820000 0000000f <03e00008> 00000000 08088708 00000000 aca40000 03e00008
[ 88.744846]
[ 88.746464] ---[ end trace db226b2de1b69b9e ]---
[ 88.753477] Kernel panic - not syncing: Fatal exception
[ 88.759981] Rebooting in 3 seconds..
The "REG_READ(ah, AR_PHY_AGC_CONTROL)" in ath9k_hw_loadnf() does not
like being called when the hardware is asleep, leading to this crash.
The easiest way to reproduce this is trying to set nf_override while
the hardware is down:
$ ip link set down dev wlan0
$ echo "-85" > /sys/kernel/debug/ieee80211/phy0/ath9k/nf_override
Fixing this crash by waking the hardware up before trying to set the
noise floor. Similar to what other ath9k debugfs files do.
Tested on a Lima board from 8devices, which has a QCA 4531 chipset.
Fixes: b90189759a7f ("ath9k: add noise floor override option")
Cc: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Linus Lüssing <ll@simonwunderlich.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210209184352.4272-1-linus.luessing@c0d3.blue
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The ability to reach this code was hidden behind
CONFIG_WIRELESS_WDS, which was just removed. Clean
up the driver accordingly.
Link: https://lore.kernel.org/r/20201109105103.e1d48ee20b0a.I89f8af0d50a02ce16a922fa790d6c1908f31a496@changeid
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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SPUR DOWN field returns spurup instead of spurdown.
Signed-off-by: Andrea Greco <a.greco@4sigma.it>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This moves the ath9k driver to use the mac80211 TXQ scheduling and
airtime accounting APIs, removing the corresponding state tracking
inside the driver.
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
[rmanohar@codeaurora.org: fixed checkpatch error and warnings]
Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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A couple of macros that deal with statistics in ath9k rely on the
declaration of the 'sc' variable, which they dereference.
However, when the statistics are disabled, the new instance in
ath_cmn_process_fft() causes a warning for an unused variable:
drivers/net/wireless/ath/ath9k/common-spectral.c: In function 'ath_cmn_process_fft':
drivers/net/wireless/ath/ath9k/common-spectral.c:474:20: error: unused variable 'sc' [-Werror=unused-variable]
It's better if those macros only operate on their arguments instead of
known variable names, and adding a cast to (void) kills off that warning.
Fixes: 03224678c013 ("ath9k: add counters for good and errorneous FFT/spectral frames")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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'fops_dump_nfcal' is not used since commit 4447d815fd0f ("ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Trivial fix to spelling mistake in PR_IS message text.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Prefer the direct use of octal for permissions.
Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace
and some typing.
Miscellanea:
o Whitespace neatening around these conversions.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Variable val is unsigned, so checking whether it is less than zero is
redundant.
Signed-off-by: Christos Gkekas <chris.gekas@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Don't populate the read-only array reg_hole_list on the stack, instead make
it static. Makes the object code smaller by over 200 bytes:
Before:
text data bss dec hex filename
57518 15248 0 72766 11c3e debug.o
After:
text data bss dec hex filename
57218 15344 0 72562 11b72 debug.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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This patch fixes a trivial debugfs file permission issue. Debugfs
file ack_to has no write function, so S_IWUSR gets purged.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Introduce a debugfs option to manually override the noise floor,
ignoring the automatically tuned noise floor of the driver/hw.
In my tests with a AR9580 based module and a tx99 5 MHz interferer,
I could tune the noisefloor to -95 dBm or above to allow communication
again. The automatic noise floor calibration sometimes could adapt to
the situation as well, but not reliably and permanently.
I would consider this "feature" experimental and interesting for people
debugging the noise floor calibration or other effects of the hardware.
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fit.fraunhofer.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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This reworks the ath9k driver to schedule transmissions to connected
stations in a way that enforces airtime fairness between them. It
accomplishes this by measuring the time spent transmitting to or
receiving from a station at TX and RX completion, and accounting this to
a per-station, per-QoS level airtime deficit. Then, an FQ-CoDel based
deficit scheduler is employed at packet dequeue time, to control which
station gets the next transmission opportunity.
Airtime fairness can significantly improve the efficiency of the network
when station rates vary. The following throughput values are from a
simple three-station test scenario, where two stations operate at the
highest HT20 rate, and one station at the lowest, and the scheduler is
employed at the access point:
Before / After
Fast station 1: 19.17 / 25.09 Mbps
Fast station 2: 19.83 / 25.21 Mbps
Slow station: 2.58 / 1.77 Mbps
Total: 41.58 / 52.07 Mbps
The benefit of airtime fairness goes up the more stations are present.
In a 30-station test with one station artificially limited to 1 Mbps,
we have seen aggregate throughput go from 2.14 to 17.76 Mbps.
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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This switches ath9k over to using the mac80211 intermediate software
queueing mechanism for data packets. It removes the queueing inside the
driver, except for the retry queue, and instead pulls from mac80211 when
a packet is needed. The retry queue is used to store a packet that was
pulled but can't be sent immediately.
The old code path in ath_tx_start that would queue packets has been
removed completely, as has the qlen limit tunables (since there's no
longer a queue in the driver to limit).
The mac80211 intermediate software queues offer significant latency
reductions, and this patch allows ath9k to realise them. The exact gains
from this varies with the test scenario, but in an access point scenario
we have seen latency reductions ranging from 1/3 to as much as an order
of magnitude. We also achieve slightly better aggregation.
Median latency (ping) figures with this patch applied at the access point,
with two high-rate stations and one low-rate station (HT20 5Ghz), running
a Flent rtt_fair_var_up test with one TCP flow and one ping flow going to
each station:
Fast station Slow station
Default pfifo_fast qdisc: 430.4 ms 638.7 ms
fq_codel qdisc on iface: 35.5 ms 211.8 ms
This patch set: 22.4 ms 38.2 ms
Median aggregation sizes over the same test:
Default pfifo_fast qdisc: 9.5 pkts 1.9 pkts
fq_codel qdisc on iface: 11.2 pkts 1.9 pkts
This patch set: 13.9 pkts 1.9 pkts
This patch is based on Tim's original patch set, but reworked quite
thoroughly.
Cc: Tim Shepard <shep@alum.mit.edu>
Cc: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Changes:
- restrict only dump MAC registers
- skip the register memory holes
Data bus error, epc == 831d4040, ra == 831d403c
Oops[#1]:
CPU: 0 PID: 1536 Comm: cat Not tainted 3.14.0 #3
task: 82f87840 ti: 82f88000 task.ti: 82f88000
$ 0 : 00000000 00000001 deadc0de 1000fc03
$ 4 : b8100200 00000200 831e0000 80218788
$ 8 : 00000030 00000003 00000001 09524547
$12 : 00000000 810594f4 00000000 3a206d61
$16 : 831dd3c0 00000081 00000a00 c05ff000
$20 : 00005af6 00000200 00071b39 00071139
$24 : 00000001 80217760
$28 : 82f88000 82f89c60 c05ffa00 831d403c
Hi : 00000000
Lo : 453c0000
epc : 831d4040 ath_ahb_exit+0x2198/0x2904 [ath9k]
Not tainted
ra : 831d403c ath_ahb_exit+0x2194/0x2904 [ath9k]
Status: 1000fc03 KERNEL EXL IE
Cause : 4080801c
PrId : 00019374 (MIPS 24Kc)
Stack : 00000001 00000000 0000000e 80475c60 0000000e 800a8ebc 00000000 00000000
00000001 00000007 00000000 800a9678 00000000 00000004 00000002 00000010
00000000 00000000 00000000 00000000 80475c60 0000000e 000009ec c05ff000
831dd3c0 00000080 00000a00 c05ff000 00005af6 00000200 00071b39 0007114d
c05ff9ec 800a9904 831dd3c0 82f89d10 00000001 81082194 831d8f0c 82f89d14
...
Call Trace:
[<831d4040>] ath_ahb_exit+0x2198/0x2904 [ath9k]
[<831d403c>] ath_ahb_exit+0x2194/0x2904 [ath9k]
Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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The patch adds support for "outside the context of a BSS"(OCB) mode
to ath9k driver and extends debugfs files by OCB ralated information.
This patch was tested on AR9380-AL1A cards.
Signed-off-by: Jan Kaisrlik <kaisrja1@fel.cvut.cz>
Cc: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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A long time ago, ath9k had issues during reset where the DMA engine
would stay active and could potentially corrupt memory.
To debug those issues, the driver would print warnings whenever they
occur.
Nowadays, these issues are gone and the primary cause of these messages
is if the MAC is stuck during reset or busy processing a long
transmission. This is fairly harmless, yet these messages continue to
worry users.
To reduce the number of bogus bug reports, turn these messages into
debug messages and count their occurence in the "reset" debugfs file.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Configure the HW with highest TX power among all vif when HW TPC has been
enabled in order to add support to per-vif TX power capability. Use lowest
configured power among all interfaces when TPC is disabled
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This can be used to force WOW for cards that
are not present in the supported PCI ID list.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Enable per-packet TPC on AR9002 based chips by default
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Use the helper to get rid of the file operations per debugfs file. The
device driver data contains struct ieee80211_hw pointer and the
struct ath9k_softc pointer is assigned to ieee80211_hw::priv so it can
be accessed in the seq_file read operation.
Cc: ath9k-devel@lists.ath9k.org
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Add tpc entry to ath9k debugfs in order to enable/disable hw TPC
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
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This reverts commit d32394fae95741d733b174ec1446f27765f80233.
It has been reported to cause problems, Jeremiah writes:
On an Acer C720 laptop if a suspend is performed the screen
freezes, the machine locks up, and according to the indicator
lights it does not enter suspend. A hard reset is required to
get it running again.
Reported-by: Jeremiah Mahler <jmmahler@gmail.com>
Cc: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the helper to get rid of the file operations per debugfs file. The
struct ath9k_softc pointer is set as device driver data to be obtained
in the seq_file read operation.
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The debugfs files that are defined in debug.c which are read-only
and using a simple_open as .open file operation have been modified
to use the single_open seq_file API. This simplifies the read
functions defining the file contents.
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When channel-context is not enabled, all vifs belong to
the first context, but it is not configured as 'assigned'.
Fix misc debugfs file to print out info for non-assigned
contexts, and also print whether ctx is assigned or not.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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and rename exports from ath9k_spectral_* to ath9k_cmn_spectral_*
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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this will alow us to make ath_softc independent code.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The right shift operation has higher precedence than the mask so we
left shift by "(i * 3)" and then immediately right shift by "(i * 3)"
then we mask. It should be left shift, mask, and then right shift.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When NF calibration fails, the radio often becomes deaf. The usual
hardware hang checks do not detect this, so it's better to issue a reset
when that happens.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Reduce code duplication
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Add ack_to entry to debugfs in order to dump current ACK timeout value
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Currently, the interface count is maintained globally,
but this causes problems in RX filter calculation.
Make the interface count a per-channel-context variable
to fix this.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80471
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80481
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Group and set hw state (opmode, primary_sta, beacon conf) per
channel context instead of whole list of vifs. This would allow
each channel context to run in different mode (STA/AP).
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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and use it. This move need changes in both drivers.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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we will need it for ath9k_htc, may be other drivers too
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Unify scnprintf calls and include the current OFDM/CCK immunity level.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Trivially reduces text size too.
$ size drivers/net/wireless/ath/ath9k/debug.o*
text data bss dec hex filename
34436 2528 5128 42092 a46c drivers/net/wireless/ath/ath9k/debug.o.new
34464 2528 5128 42120 a488 drivers/net/wireless/ath/ath9k/debug.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Number of MAC hangs and stuck beacons were missing
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Linus Lüssing
Johannes Berg
Andrea Greco
Toke Høiland-Jørgensen
Arnd Bergmann
YueHaibing
Colin Ian King
Joe Perches
Christos Gkekas
Christoph Fritz
Simon Wunderlich
Miaoqing Pan
Jan Kaisrlik
Felix Fietkau
Lorenzo Bianconi
Sujith Manoharan
Arend van Spriel
Linus Torvalds
Greg Kroah-Hartman
John W. Linville
Ben Greear
Oleksij Rempel
Dan Carpenter
Andrey Utkin
Rajkumar Manoharan