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Author SHA1 Message Date
Aditya Srivastava
f7c76283fc rtlwifi: rtl8192c-common: fix bool comparison in expressions
There are certain conditional expressions in rtl8192c-common, where a
boolean variable is compared with true/false, in forms such as
(foo == true) or (false != bar), which does not comply with checkpatch.pl
(CHECK: BOOL_COMPARISON), according to which boolean variables should be
themselves used in the condition, rather than comparing with true/false

E.g., in drivers/net/wireless/realtek/rtlwifi/rtl8192c/dm_common.c,
"else if (initialized == false) {" can be replaced with
"else if (!initialized) {"

Replace all such expressions with the bool variables appropriately

Signed-off-by: Aditya Srivastava <yashsri421@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210110121525.2407-3-yashsri421@gmail.com
2021-01-25 16:21:05 +02:00
Aditya Srivastava
d8cbaa3de4 rtlwifi: rtl_pci: fix bool comparison in expressions
There are certain conditional expressions in rtl_pci, where a boolean
variable is compared with true/false, in forms such as (foo == true) or
(false != bar), which does not comply with checkpatch.pl (CHECK:
BOOL_COMPARISON), according to which boolean variables should be
themselves used in the condition, rather than comparing with true/false

E.g., in drivers/net/wireless/realtek/rtlwifi/ps.c,
"if (find_p2p_ie == true)" can be replaced with "if (find_p2p_ie)"

Replace all such expressions with the bool variables appropriately

Signed-off-by: Aditya Srivastava <yashsri421@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210110121525.2407-2-yashsri421@gmail.com
2021-01-25 16:21:01 +02:00
Lorenzo Bianconi
0acb20a543 mt7601u: fix kernel crash unplugging the device
The following crash log can occur unplugging the usb dongle since,
after the urb poison in mt7601u_free_tx_queue(), usb_submit_urb() will
always fail resulting in a skb kfree while the skb has been already
queued.

Fix the issue enqueuing the skb only if usb_submit_urb() succeed.

Hardware name: Hewlett-Packard 500-539ng/2B2C, BIOS 80.06 04/01/2015
Workqueue: usb_hub_wq hub_event
RIP: 0010:skb_trim+0x2c/0x30
RSP: 0000:ffffb4c88005bba8 EFLAGS: 00010206
RAX: 000000004ad483ee RBX: ffff9a236625dee0 RCX: 000000000000662f
RDX: 000000000000000c RSI: 0000000000000000 RDI: ffff9a2343179300
RBP: ffff9a2343179300 R08: 0000000000000001 R09: 0000000000000000
R10: ffff9a23748f7840 R11: 0000000000000001 R12: ffff9a236625e4d4
R13: ffff9a236625dee0 R14: 0000000000001080 R15: 0000000000000008
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd410a34ef8 CR3: 00000001416ee001 CR4: 00000000001706f0
Call Trace:
 mt7601u_tx_status+0x3e/0xa0 [mt7601u]
 mt7601u_dma_cleanup+0xca/0x110 [mt7601u]
 mt7601u_cleanup+0x22/0x30 [mt7601u]
 mt7601u_disconnect+0x22/0x60 [mt7601u]
 usb_unbind_interface+0x8a/0x270
 ? kernfs_find_ns+0x35/0xd0
 __device_release_driver+0x17a/0x230
 device_release_driver+0x24/0x30
 bus_remove_device+0xdb/0x140
 device_del+0x18b/0x430
 ? kobject_put+0x98/0x1d0
 usb_disable_device+0xc6/0x1f0
 usb_disconnect.cold+0x7e/0x20a
 hub_event+0xbf3/0x1870
 process_one_work+0x1b6/0x350
 worker_thread+0x53/0x3e0
 ? process_one_work+0x350/0x350
 kthread+0x11b/0x140
 ? __kthread_bind_mask+0x60/0x60
 ret_from_fork+0x22/0x30

Fixes: 23377c200b ("mt7601u: fix possible memory leak when the device is disconnected")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/3b85219f669a63a8ced1f43686de05915a580489.1610919247.git.lorenzo@kernel.org
2021-01-25 16:02:52 +02:00
Johannes Berg
0bed6a2a14 iwlwifi: queue: bail out on invalid freeing
If we find an entry without an SKB, we currently continue, but
that will just result in an infinite loop since we won't increment
the read pointer, and will try the same thing over and over again.
Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.abe2dedcc3ac.Ia6b03f9eeb617fd819e56dd5376f4bb8edc7b98a@changeid
2021-01-25 15:59:27 +02:00
Johannes Berg
7a21b1d4a7 iwlwifi: mvm: guard against device removal in reprobe
If we get into a problem severe enough to attempt a reprobe,
we schedule a worker to do that. However, if the problem gets
more severe and the device is actually destroyed before this
worker has a chance to run, we use a free device. Bump up the
reference count of the device until the worker runs to avoid
this situation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.871f0892e4b2.I94819e11afd68d875f3e242b98bef724b8236f1e@changeid
2021-01-25 15:59:24 +02:00
Matti Gottlieb
4886460c4d iwlwifi: Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit.
The bit that indicates if the device supports 160MHZ
is bit #9. The macro checks bit #8.

Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Fixes: d6f2134a38 ("iwlwifi: add mac/rf types and 160MHz to the device tables")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.bddbf9b57a75.I16e09e2b1404b16bfff70852a5a654aa468579e2@changeid
2021-01-25 15:59:22 +02:00
Shaul Triebitz
96d2bfb794 iwlwifi: mvm: clear IN_D3 after wowlan status cmd
In D3 resume flow, avoid the following race where sending
packets before updating the sequence number (sequence
number received from the wowlan status command response):
Thread 1:
__iwl_mvm_resume clears IWL_MVM_STATUS_IN_D3 and is cut
by thread 2 before reaching iwl_mvm_query_wakeup_reasons.
Thread 2:
iwl_mvm_mac_itxq_xmit calls iwl_mvm_tx_skb since
IWL_MVM_STATUS_IN_D3 is not set using a wrong sequence number.
Thread 1:
__iwl_mvm_resume continues and calls iwl_mvm_query_wakeup_reasons
updating the sequence number received from the firmware.

The next packet that will be sent now will cause sysassert 0x1096.

Fix the bug by moving 'clear IWL_MVM_STATUS_IN_D3' to after
sending the wowlan status command and updating the sequence
number.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.fe927ec939c6.I103d3321fb55da7e6c6c51582cfadf94eb8b6c58@changeid
2021-01-25 15:59:19 +02:00
Luca Coelho
16062c12ed iwlwifi: pcie: add rules to match Qu with Hr2
Until now we have been relying on matching the PCI ID and subsystem
device ID in order to recognize Qu devices with Hr2.  Add rules to
match these devices, so that we don't have to add a new rule for every
new ID we get.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.591ce253ddd8.Ia4b9cc2c535625890c6d6b560db97ee9f2d5ca3b@changeid
2021-01-25 15:59:17 +02:00
Gregory Greenman
e223e42aac iwlwifi: mvm: invalidate IDs of internal stations at mvm start
Having sta_id not set for aux_sta and snif_sta can potentially lead to a
hard to debug issue in case remove station is called without an add. In
this case sta_id 0, an unrelated regular station, will be removed.

In fact, we do have a FW assert that occures rarely and from the debug
data analysis it looks like sta_id 0 is removed by mistake, though it's
hard to pinpoint the exact flow. The WARN_ON in this patch should help
to find it.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.5dc6dd9b22d5.I2add1b5ad24d0d0a221de79d439c09f88fcaf15d@changeid
2021-01-25 15:59:13 +02:00
Matt Chen
aefbe5c445 iwlwifi: mvm: fix the return type for DSM functions 1 and 2
The return type value of functions 1 and 2 were considered to be an
integer inside a buffer, but they can also be only an integer, without
the buffer.  Fix the code in iwl_acpi_get_dsm_u8() to handle it as a
single integer value, as well as packed inside a buffer.

Signed-off-by: Matt Chen <matt.chen@intel.com>
Fixes: 9db93491f2 ("iwlwifi: acpi: support device specific method (DSM)")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.5757092adcd6.Ic24524627b899c9a01af38107a62a626bdf5ae3a@changeid
2021-01-25 15:59:12 +02:00
Johannes Berg
3d372c4edf iwlwifi: pcie: reschedule in long-running memory reads
If we spin for a long time in memory reads that (for some reason in
hardware) take a long time, then we'll eventually get messages such
as

  watchdog: BUG: soft lockup - CPU#2 stuck for 24s! [kworker/2:2:272]

This is because the reading really does take a very long time, and
we don't schedule, so we're hogging the CPU with this task, at least
if CONFIG_PREEMPT is not set, e.g. with CONFIG_PREEMPT_VOLUNTARY=y.

Previously I misinterpreted the situation and thought that this was
only going to happen if we had interrupts disabled, and then fixed
this (which is good anyway, however), but that didn't always help;
looking at it again now I realized that the spin unlock will only
reschedule if CONFIG_PREEMPT is used.

In order to avoid this issue, change the code to cond_resched() if
we've been spinning for too long here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 04516706bb ("iwlwifi: pcie: limit memory read spin time")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130253.217a9d6a6a12.If964cb582ab0aaa94e81c4ff3b279eaafda0fd3f@changeid
2021-01-25 15:53:11 +02:00
Johannes Berg
6701317476 iwlwifi: pcie: use jiffies for memory read spin time limit
There's no reason to use ktime_get() since we don't need any better
precision than jiffies, and since we no longer disable interrupts
around this code (when grabbing NIC access), jiffies will work fine.
Use jiffies instead of ktime_get().

This cleanup is preparation for the following patch "iwlwifi: pcie: reschedule
in long-running memory reads". The code gets simpler with the weird clock use
etc. removed before we add cond_resched().

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130253.621c948b1fad.I3ee9f4bc4e74a0c9125d42fb7c35cd80df4698a1@changeid
2021-01-25 15:53:07 +02:00
Johannes Berg
2d6bc752cc iwlwifi: pcie: fix context info memory leak
If the image loader allocation fails, we leak all the previously
allocated memory. Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.97172cbaa67c.I3473233d0ad01a71aa9400832fb2b9f494d88a11@changeid
2021-01-25 15:53:06 +02:00
Emmanuel Grumbach
98c7d21f95 iwlwifi: pcie: add a NULL check in iwl_pcie_txq_unmap
I hit a NULL pointer exception in this function when the
init flow went really bad.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.2e8da9f2c132.I0234d4b8ddaf70aaa5028a20c863255e05bc1f84@changeid
2021-01-25 15:53:04 +02:00
Johannes Berg
ed0022da8b iwlwifi: pcie: set LTR on more devices
To avoid completion timeouts during device boot, set up the
LTR timeouts on more devices - similar to what we had before
for AX210.

This also corrects the AX210 workaround to be done only on
discrete (non-integrated) devices, otherwise the registers
have no effect.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: edb625208d ("iwlwifi: pcie: set LTR to avoid completion timeout")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.fb819e19530b.I0396f82922db66426f52fbb70d32a29c8fd66951@changeid
2021-01-25 15:53:03 +02:00
Emmanuel Grumbach
0f8d5656b3 iwlwifi: queue: don't crash if txq->entries is NULL
The code was really awkward, we would first dereference
txq->entries when calling iwl_txq_genX_tfd_unmap and then
we would check that txq->entries is non-NULL.
Fix that by exiting if txq->entries is NULL.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.173359fc236d.I75c7c2397d20df8d7fbc24cb16a5232d5c551889@changeid
2021-01-25 15:53:02 +02:00
Emmanuel Grumbach
a800f95858 iwlwifi: fix the NMI flow for old devices
I noticed that the flow that triggers an NMI on the firmware
for old devices (tested on 7265) doesn't work.
Apparently, the firmware / device is still in low power when
we write the register that triggers the NMI. We call the
"grab_nic_access" function to make sure the device is awake
but that wasn't enough. I played with this and noticed that
if we wait 1 ms after the device reports it is awake before
we write to the NMI register, the device always sees our
write and the firmware gets properly asserted.

Triggering an NMI to the firmware can be done with the
debugfs hook:
echo 1 > /sys/kernel/debug/iwlwifi/0000\:00\:03.0/iwlmvm/fw_nmi

What happened before is that the firmware would just stall
without running its NMI routine. Because of that the driver
wouldn't get the "firmware crashed" interrupt. After a while
the driver would notice that the firmware is not responding
to some command and it would read the error data from the
firmware, but this data is populated in the NMI service
routine in the firmware which was not called. So in the logs
it looked like:

iwlwifi 0000:00:03.0: Error sending REPLY_ERROR: time out after 2000ms.
iwlwifi 0000:00:03.0: Current CMD queue read_ptr 33 write_ptr 34
iwlwifi 0000:00:03.0: Loaded firmware version: 29.09bd31e1.0 7265D-29.ucode
iwlwifi 0000:00:03.0: 0x00000000 | ADVANCED_SYSASSERT
iwlwifi 0000:00:03.0: 0x00000000 | trm_hw_status0
iwlwifi 0000:00:03.0: 0x00000000 | trm_hw_status1
iwlwifi 0000:00:03.0: 0x00000000 | branchlink2
iwlwifi 0000:00:03.0: 0x00000000 | interruptlink1
iwlwifi 0000:00:03.0: 0x00000000 | interruptlink2
iwlwifi 0000:00:03.0: 0x00000000 | data1
iwlwifi 0000:00:03.0: 0x00000000 | data2
iwlwifi 0000:00:03.0: 0x00000000 | data3
iwlwifi 0000:00:03.0: 0x00000000 | beacon time
iwlwifi 0000:00:03.0: 0x00000000 | tsf low
...

With this fix, immediately after we trigger the NMI to the
firmware, we get the expected:
iwlwifi 0000:00:03.0: Microcode SW error detected.  Restarting 0x2000000.
iwlwifi 0000:00:03.0: Start IWL Error Log Dump:
iwlwifi 0000:00:03.0: Status: 0x00000040, count: 6
iwlwifi 0000:00:03.0: Loaded firmware version: 29.09bd31e1.0 7265D-29.ucode
iwlwifi 0000:00:03.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
iwlwifi 0000:00:03.0: 0x000002F1 | trm_hw_status0
iwlwifi 0000:00:03.0: 0x00000000 | trm_hw_status1
iwlwifi 0000:00:03.0: 0x00043D6C | branchlink2
iwlwifi 0000:00:03.0: 0x0004AFD6 | interruptlink1
iwlwifi 0000:00:03.0: 0x000008C4 | interruptlink2
iwlwifi 0000:00:03.0: 0x00000000 | data1
iwlwifi 0000:00:03.0: 0x00000080 | data2
iwlwifi 0000:00:03.0: 0x07030000 | data3
iwlwifi 0000:00:03.0: 0x003FD4C3 | beacon time
iwlwifi 0000:00:03.0: 0x00C22AC3 | tsf low
iwlwifi 0000:00:03.0: 0x00000000 | tsf hi
iwlwifi 0000:00:03.0: 0x00000000 | time gp1
iwlwifi 0000:00:03.0: 0x00C22AC3 | time gp2
iwlwifi 0000:00:03.0: 0x00000001 | uCode revision type
iwlwifi 0000:00:03.0: 0x0000001D | uCode version major

Notice the first line: "Microcode SW error detected:" which
is printed in the driver's ISR, which means that the driver
actually got an interrupt from the firmware saying that it
crashed. And then we have the properly populated error data.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.70e67cc75d88.I6615cad4361862e7f3c9f2d3cafb6a8c61e16781@changeid
2021-01-25 15:53:00 +02:00
Johannes Berg
82a08d0cd7 iwlwifi: pnvm: don't try to load after failures
If loading the PNVM file failed on the first try during the
interface up, the file is unlikely to show up later, and we
already don't try to reload it if it changes, so just don't
try loading it again and again.

This also fixes some issues where we may try to load it at
resume time, which may not be possible yet.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 6972592850 ("iwlwifi: read and parse PNVM file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.5ac6828a0bbe.I7d308358b21d3c0c84b1086999dbc7267f86e219@changeid
2021-01-25 15:52:56 +02:00
Johannes Berg
1c58bed4b7 iwlwifi: pnvm: don't skip everything when not reloading
Even if we don't reload the file from disk, we still need to
trigger the PNVM load flow with the device; fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 6972592850 ("iwlwifi: read and parse PNVM file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.85ef56c4ef8c.I3b853ce041a0755d45e448035bef1837995d191b@changeid
2021-01-25 15:52:51 +02:00
Johannes Berg
34b9434cd0 iwlwifi: pcie: avoid potential PNVM leaks
If we erroneously try to set the PNVM data again after it has
already been set, we could leak the old DMA memory. Avoid that
and warn, we shouldn't be doing this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 6972592850 ("iwlwifi: read and parse PNVM file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.929c2d680429.I086b9490e6c005f3bcaa881b617e9f61908160f3@changeid
2021-01-25 15:52:48 +02:00
Johannes Berg
5c56d862c7 iwlwifi: mvm: take mutex for calling iwl_mvm_get_sync_time()
We need to take the mutex to call iwl_mvm_get_sync_time(), do it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.4bb5ccf881a6.I62973cbb081e80aa5b0447a5c3b9c3251a65cf6b@changeid
2021-01-25 15:52:47 +02:00
Sara Sharon
bf544e9aa5 iwlwifi: mvm: skip power command when unbinding vif during CSA
In the new CSA flow, we remain associated during CSA, but
still do a unbind-bind to the vif. However, sending the power
command right after when vif is unbound but still associated
causes FW to assert (0x3400) since it cannot tell the LMAC id.

Just skip this command, we will send it again in a bit, when
assigning the new context.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.64a2254ac5c3.Iaa3a9050bf3d7c9cd5beaf561e932e6defc12ec3@changeid
2021-01-25 15:52:45 +02:00
Johannes Berg
2fe8ef1062 cfg80211: change netdev registration/unregistration semantics
We used to not require anything in terms of registering netdevs
with cfg80211, using a netdev notifier instead. However, in the
next patch reducing RTNL locking, this causes big problems, and
the simplest way is to just require drivers to do things better.

Change the registration/unregistration semantics to require the
drivers to call cfg80211_(un)register_netdevice() when this is
happening due to a cfg80211 request, i.e. add_virtual_intf() or
del_virtual_intf() (or if it somehow has to happen in any other
cfg80211 callback).

Otherwise, in other contexts, drivers may continue to use the
normal netdev (un)registration functions as usual.

Internally, we still use the netdev notifier and track (by the
new wdev->registered bool) if the wdev had already been added
to cfg80211 or not.

Link: https://lore.kernel.org/r/20210122161942.cf2f4b65e4e9.Ida8234e50da13eb675b557bac52a713ad4eddf71@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-01-22 16:28:39 +01:00
Ramon Fontes
28881922ab mac80211_hwsim: add 6GHz channels
Advertise 6GHz channels to mac80211.

Signed-off-by: Ramon Fontes <ramonreisfontes@gmail.com>
Link: https://lore.kernel.org/r/20201227031155.81161-1-ramonreisfontes@gmail.com
[reword commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-01-21 13:45:13 +01:00
Kalle Valo
4c239f012f ath10k: remove unused struct ath10k::dev_type
It's unused so let's get rid of it. Compile tested only, no functional changes.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1608574994-30706-1-git-send-email-kvalo@codeaurora.org
2021-01-18 18:17:09 +02:00
Karthikeyan Periyasamy
cf8480d338 ath11k: remove duplicate function declaration
Removed the duplicated peer related function declaration
from core.h since those functions are already declared in peer.h

Founded in code review.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1608304793-20612-1-git-send-email-periyasa@codeaurora.org
2021-01-18 18:13:27 +02:00
Linus Lüssing
3e6b9cf534 ath10k: increase rx buffer size to 2048
Before, only frames with a maximum size of 1528 bytes could be
transmitted between two 802.11s nodes.

For batman-adv for instance, which adds its own header to each frame,
we typically need an MTU of at least 1532 bytes to be able to transmit
without fragmentation.

This patch now increases the maxmimum frame size from 1528 to 1656
bytes.

Tested with two ath10k devices in 802.11s mode, as well as with
batman-adv on top of 802.11s with forwarding disabled.

Fix originally found and developed by Ben Greear.

Link: https://github.com/greearb/ath10k-ct/issues/89
Link: 9e5ab25027
Cc: Ben Greear <greearb@candelatech.com>
Signed-off-by: Linus Lüssing <ll@simonwunderlich.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200205191043.21913-1-linus.luessing@c0d3.blue
2021-01-18 18:12:47 +02:00
Zekun Shen
d18ba9f135 ath10k: sanitity check for ep connectivity
Function ep_rx_complete is being called without NULL checking
in ath10k_htc_rx_completion_handler. Without such check, mal-
formed packet is able to cause jump to NULL.

ep->service_id seems a good candidate for sanity check as it is
used in usb.c.

Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200622022055.16028-1-bruceshenzk@gmail.com
2021-01-18 18:11:32 +02:00
Lorenzo Bianconi
952de419b6 mt76: mt7663s: fix rx buffer refcounting
Similar to mt7601u driver, fix erroneous rx page refcounting

Fixes: a66cbdd657 ("mt76: mt7615: introduce mt7663s support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/dca19c9d445156201bc41f7cbb6e894bbc9a678c.1610644945.git.lorenzo@kernel.org
2021-01-18 17:22:59 +02:00
Lorenzo Bianconi
d24c790577 mt7601u: fix rx buffer refcounting
Fix the following crash due to erroneous page refcounting:

[   32.445919] BUG: Bad page state in process swapper/1  pfn:11f65a
[   32.447409] page:00000000938f0632 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x0 pfn:0x11f65a
[   32.449605] flags: 0x8000000000000000()
[   32.450421] raw: 8000000000000000 ffffffff825b0148 ffffea00045ae988 0000000000000000
[   32.451795] raw: 0000000000000000 0000000000000001 00000000ffffff7f 0000000000000000
[   32.452999] page dumped because: nonzero mapcount
[   32.453888] Modules linked in:
[   32.454492] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-rc2+ #1976
[   32.455695] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-1.fc33 04/01/2014
[   32.457157] Call Trace:
[   32.457636]  <IRQ>
[   32.457993]  dump_stack+0x77/0x97
[   32.458576]  bad_page.cold+0x65/0x96
[   32.459198]  get_page_from_freelist+0x46a/0x11f0
[   32.460008]  __alloc_pages_nodemask+0x10a/0x2b0
[   32.460794]  mt7601u_rx_tasklet+0x651/0x720
[   32.461505]  tasklet_action_common.constprop.0+0x6b/0xd0
[   32.462343]  __do_softirq+0x152/0x46c
[   32.462928]  asm_call_irq_on_stack+0x12/0x20
[   32.463610]  </IRQ>
[   32.463953]  do_softirq_own_stack+0x5b/0x70
[   32.464582]  irq_exit_rcu+0x9f/0xe0
[   32.465028]  common_interrupt+0xae/0x1a0
[   32.465536]  asm_common_interrupt+0x1e/0x40
[   32.466071] RIP: 0010:default_idle+0x18/0x20
[   32.468981] RSP: 0018:ffffc90000077f00 EFLAGS: 00000246
[   32.469648] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
[   32.470550] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81aac3dd
[   32.471463] RBP: ffff88810022ab00 R08: 0000000000000001 R09: 0000000000000001
[   32.472335] R10: 0000000000000046 R11: 0000000000005aa0 R12: 0000000000000000
[   32.473235] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   32.474139]  ? default_idle_call+0x4d/0x200
[   32.474681]  default_idle_call+0x74/0x200
[   32.475192]  do_idle+0x1d5/0x250
[   32.475612]  cpu_startup_entry+0x19/0x20
[   32.476114]  secondary_startup_64_no_verify+0xb0/0xbb
[   32.476765] Disabling lock debugging due to kernel taint

Fixes: c869f77d6a ("add mt7601u driver")
Co-developed-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/62b2380c8c2091834cfad05e1059b55f945bd114.1610643952.git.lorenzo@kernel.org
2021-01-18 17:21:05 +02:00
Tony Lindgren
07ceefa301 wlcore: Downgrade exceeded max RX BA sessions to debug
We can get the following in the logs every few minutes or so:

wlcore: ERROR exceeded max RX BA sessions

Let's downgrade the message to a debug message as suggested by the TI
support folks at:

https://e2e.ti.com/support/wireless-connectivity/wifi/f/968/p/352435/1244754

"The WL127x firmware supports max of 3 BA sessions. It cannot be increased.
 I think the problem here is the peer trying to initiate a 4th BA session
 (ADDBA request)."

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210101065955.63386-1-tony@atomide.com
2021-01-14 19:33:53 +02:00
Tian Tao
098238e80b wilc1000: use flexible-array member instead of zero-length array
Use flexible-array member introduced in C99 instead of zero-length
array. Most of zero-length array was already taken care in previous
patch [1].

[1]. https://patchwork.kernel.org/patch/11394197/

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1608881703-37060-1-git-send-email-tiantao6@hisilicon.com
2021-01-14 19:33:02 +02:00
Luca Pesce
e862a3e408 brcmfmac: clear EAP/association status bits on linkdown events
This ensure that previous association attempts do not leave stale statuses
on subsequent attempts.

This fixes the WARN_ON(!cr->bss)) from __cfg80211_connect_result() when
connecting to an AP after a previous connection failure (e.g. where EAP fails
due to incorrect psk but association succeeded). In some scenarios, indeed,
brcmf_is_linkup() was reporting a link up event too early due to stale
BRCMF_VIF_STATUS_ASSOC_SUCCESS bit, thus reporting to cfg80211 a connection
result with a zeroed bssid (vif->profile.bssid is still empty), causing the
WARN_ON due to the call to cfg80211_get_bss() with the empty bssid.

Signed-off-by: Luca Pesce <luca.pesce@vimar.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1608807119-21785-1-git-send-email-luca.pesce@vimar.com
2021-01-14 19:32:32 +02:00
Zheng Yongjun
73c6554101 brcmfmac: Delete useless kfree code
A null pointer will be passed to a kfree() call after a kzalloc() call failed.
This code is useless. Thus delete the extra function call.

A goto statement is also no longer needed. Thus adjust an if branch.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201222135113.20680-1-zhengyongjun3@huawei.com
2021-01-14 19:32:03 +02:00
Amey Narkhede
0924ba9fbc qtnfmac_pcie: Use module_pci_driver
Use module_pci_driver for drivers whose init and exit functions
only register and unregister, respectively.

Signed-off-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201221075735.197255-1-ameynarkhede03@gmail.com
2021-01-14 19:31:10 +02:00
Zhi Han
1dac51269d mt7601u: check the status of device in calibration
When the usb device being plugged out, before ieee80211 gets to know the
hw being removed, it gets to know that the association status changed,
and thus ask for the device to do the calibration. This causes error as
the hw is absent.

This can be avoid by checking the status of the device before sending
the calibration request to the device.

Signed-off-by: Zhi Han <z.han@gmx.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201217161657.GB12562@E480
2021-01-14 19:30:39 +02:00
Zhi Han
0e40dbd56d mt7601u: process URBs in status EPROTO properly
When the usb device being plugged out, before the usb_driver:disconnect
called by e.g workqueue, it is possible that some URBs are still in
processing, and being marked as EPROTO in host controller.

Those URBs should not be scheduled in complete_rx callback function to
get further processing.

Signed-off-by: Zhi Han <z.han@gmx.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201217161302.GA12562@E480
2021-01-14 19:30:17 +02:00
Rafał Miłecki
f4add10399 brcmfmac: support BCM4365E with 43666 ChipCommon chip ID
This adds support for the BCM43666/4 which seems to be using the same
firmware as BCM4366 (4366c0). I found it in the Netgear R8000P router.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201214101553.32097-1-zajec5@gmail.com
2021-01-14 19:29:46 +02:00
Colin Ian King
e4c748ee4a wilc1000: fix spelling mistake in Kconfig "devision" -> "division"
There is a spelling mistake in the Kconfig help text. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201216115808.12987-1-colin.king@canonical.com
2021-01-14 19:28:46 +02:00
Geert Uytterhoeven
596c84c49f mwifiex: pcie: Drop bogus __refdata annotation
As the Marvell PCIE WiFi-Ex driver does not have any code or data
located in initmem, there is no need to annotate the mwifiex_pcie
structure with __refdata.  Drop the annotation, to avoid suppressing
future section warnings.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201211133835.2970384-1-geert+renesas@glider.be
2021-01-14 19:28:08 +02:00
YANG LI
d3a78c7a9d rtw88: Simplify bool comparison
Fix the following coccicheck warning:
 ./drivers/net/wireless/realtek/rtw88/debug.c:800:17-23: WARNING:
Comparison of 0/1 to bool variable

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: YANG LI <abaci-bugfix@linux.alibaba.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1610445040-23599-1-git-send-email-abaci-bugfix@linux.alibaba.com
2021-01-14 19:27:28 +02:00
Ching-Te Ku
5f782c1156 rtw88: coex: set 4 slot TDMA for BT link and WL busy
To protect both of WL/BT performance while BT is under re-link state.
4-slot mode TDMA can make the re-link more sensitive and mitigate the WL
throughput drop.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210112021135.3823-1-pkshih@realtek.com
2021-01-14 19:26:49 +02:00
Vincent Fann
840105e4f1 rtw88: 8821c: apply CCK PD level which calculates from dynamic mechanism
Hal function must follow the value that calculates from dynamic mechanism.
Force to set new_lvl to 4 damages receiving ability. System will not able
to reconnect to the AP if wifi unexpected disconnecting at this moment.

Signed-off-by: Vincent Fann <vincent_fann@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201228082516.16488-1-pkshih@realtek.com
2021-01-14 19:26:12 +02:00
Chin-Yen Lee
ac9533d2a6 rtw88: reduce the log level for failure of tx report
Sometimes driver does not get tx report from firmware because wifi
environment is too noisy to get ack from AP about a TX frame,
or firmware is too busy to report driver in a estimated time.
But the condition will not affect wifi function or throughput.
So we reduce the log level to rtw_debug instead of scary backtrace.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201228082433.16431-1-pkshih@realtek.com
2021-01-14 19:25:48 +02:00
Zheng Yongjun
8873e8f56f rtw88: Delete useless kfree code
The parameter of kfree function is NULL, so kfree code is useless, delete it.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201216130442.13869-1-zhengyongjun3@huawei.com
2021-01-14 19:25:12 +02:00
Takashi Iwai
a6616bc9a0 iwlwifi: dbg: Don't touch the tlv data
The commit ba8f6f4ae2 ("iwlwifi: dbg: add dumping special device
memory") added a termination of name string just to be sure, and this
seems causing a regression, a GPF triggered at firmware loading.
Basically we shouldn't modify the firmware data that may be provided
as read-only.

This patch drops the code that caused the regression and keep the tlv
data as is.

Fixes: ba8f6f4ae2 ("iwlwifi: dbg: add dumping special device memory")
BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1180344
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=210733
Cc: stable@vger.kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210112132449.22243-2-tiwai@suse.de
2021-01-14 18:56:37 +02:00
Nathan Chancellor
b7c568752e mt76: Fix queue ID variable types after mcu queue split
Clang warns in both mt7615 and mt7915:

drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:271:9: warning: implicit
conversion from enumeration type 'enum mt76_mcuq_id' to different
enumeration type 'enum mt76_txq_id' [-Wenum-conversion]
                txq = MT_MCUQ_FWDL;
                    ~ ^~~~~~~~~~~~
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:278:9: warning: implicit
conversion from enumeration type 'enum mt76_mcuq_id' to different
enumeration type 'enum mt76_txq_id' [-Wenum-conversion]
                txq = MT_MCUQ_WA;
                    ~ ^~~~~~~~~~
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:282:9: warning: implicit
conversion from enumeration type 'enum mt76_mcuq_id' to different
enumeration type 'enum mt76_txq_id' [-Wenum-conversion]
                txq = MT_MCUQ_WM;
                    ~ ^~~~~~~~~~
3 warnings generated.

drivers/net/wireless/mediatek/mt76/mt7615/mcu.c:238:9: warning: implicit
conversion from enumeration type 'enum mt76_mcuq_id' to different
enumeration type 'enum mt76_txq_id' [-Wenum-conversion]
                qid = MT_MCUQ_WM;
                    ~ ^~~~~~~~~~
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c:240:9: warning: implicit
conversion from enumeration type 'enum mt76_mcuq_id' to different
enumeration type 'enum mt76_txq_id' [-Wenum-conversion]
                qid = MT_MCUQ_FWDL;
                    ~ ^~~~~~~~~~~~
2 warnings generated.

Use the proper type for the queue ID variables to fix these warnings.
Additionally, rename the txq variable in mt7915_mcu_send_message to be
more neutral like mt7615_mcu_send_message.

Fixes: e637763b60 ("mt76: move mcu queues to mt76_dev q_mcu array")
Link: https://github.com/ClangBuiltLinux/linux/issues/1229
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201229211548.1348077-1-natechancellor@gmail.com
2021-01-14 18:48:23 +02:00
Kalle Valo
dc5771dfb2 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.12. Major changes:

ath9k

* more robust encryption key cache management
2021-01-11 19:42:29 +02:00
Arnd Bergmann
e186620d7b wil6210: select CONFIG_CRC32
Without crc32, the driver fails to link:

arm-linux-gnueabi-ld: drivers/net/wireless/ath/wil6210/fw.o: in function `wil_fw_verify':
fw.c:(.text+0x74c): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/net/wireless/ath/wil6210/fw.o:fw.c:(.text+0x758): more undefined references to `crc32_le' follow

Fixes: 151a970650 ("wil6210: firmware download")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-01-05 15:50:36 -08:00
Jakub Kicinski
e77c725a44 wireless-drivers fixes for v5.11
First set of fixes for v5.11, more fixes than usual this time. For
 ath11k we have several fixes for QCA6390 PCI support and mt76 has
 several. Also one build fix for mt76.
 
 mt76
 
 * fix two NULL pointer dereference
 
 * fix build error when CONFIG_MAC80211_MESH is disabled
 
 rtlwifi
 
 * fix use-after-free in firmware handling code
 
 ath11k
 
 * error handling fixes
 
 * fix crash found during connect and disconnect test
 
 * handle HT disable better
 
 * avoid printing qmi memory failure during firmware bootup
 
 * disable ASPM during firmware bootup
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Merge tag 'wireless-drivers-2020-12-22' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for v5.11

First set of fixes for v5.11, more fixes than usual this time. For
ath11k we have several fixes for QCA6390 PCI support and mt76 has
several. Also one build fix for mt76.

mt76
 * fix two NULL pointer dereference
 * fix build error when CONFIG_MAC80211_MESH is disabled

rtlwifi
 * fix use-after-free in firmware handling code

ath11k
 * error handling fixes
 * fix crash found during connect and disconnect test
 * handle HT disable better
 * avoid printing qmi memory failure during firmware bootup
 * disable ASPM during firmware bootup

* tag 'wireless-drivers-2020-12-22' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers:
  MAINTAINERS: switch to different email address
  mt76: mt7915: fix MESH ifdef block
  mt76: mt76s: fix NULL pointer dereference in mt76s_process_tx_queue
  mt76: sdio: remove wake logic in mt76s_process_tx_queue
  mt76: usb: remove wake logic in mt76u_status_worker
  ath11k: pci: disable ASPM L0sLs before downloading firmware
  ath11k: qmi: try to allocate a big block of DMA memory first
  rtlwifi: rise completion at the last step of firmware callback
  mt76: mt76u: fix NULL pointer dereference in mt76u_status_worker
  ath11k: Fix ath11k_pci_fix_l1ss()
  ath11k: Fix error code in ath11k_core_suspend()
  ath11k: start vdev if a bss peer is already created
  ath11k: fix crash caused by NULL rx_channel
  ath11k: add missing null check on allocated skb
====================

Link: https://lore.kernel.org/r/20201222163727.D4336C433C6@smtp.codeaurora.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-22 19:43:33 -08:00