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Author SHA1 Message Date
Angus Ainslie
d2587c57ff brcmfmac: add 43752 SDIO ids and initialization
Add HW and SDIO ids for use with the SparkLan AP6275S
Add the firmware mapping structures for the BRCM43752 chipset.
The 43752 needs some things setup similar to the 43012 chipset.
The WATERMARK shows better performance when initialized to the 4373 value.

Signed-off-by: Angus Ainslie <angus@akkea.ca>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210812165218.2508258-2-angus@akkea.ca
2021-08-21 19:59:28 +03:00
Sean Anderson
41b637bac0 brcmfmac: Set SDIO workqueue as WQ_HIGHPRI
This puts tasks submitted to the SDIO workqueue at the head of the queue
and runs them immediately. This gets higher RX throughput with the SDIO
bus.

This was originally submitted as [1]. The original author Wright Feng
reports

> throughput result with 43455(11ac) on 1 core 1.6 Ghz platform is
>     Without WQ_HIGGPRI TX/RX: 293/301 (mbps)
>     With    WQ_HIGHPRI TX/RX: 293/321 (mbps)

I tested this with a 43364(11bgn) on a 1 core 800 MHz platform and got
    Without WQ_HIGHPRI TX/RX: 16/19 (Mbits/sec)
    With    WQ_HIGHPRI TX/RX: 24/20 (MBits/sec)

[1] https://lore.kernel.org/linux-wireless/1584604406-15452-4-git-send-email-wright.feng@cypress.com/

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Arend van Spriel <aspriel@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210802170904.3116223-1-sean.anderson@seco.com
2021-08-21 19:58:58 +03:00
Mikhail Rudenko
f8d6523891 brcmfmac: use separate firmware for 43430 revision 2
A separate firmware is needed for Broadcom 43430 revision 2.  This
chip can be found in e.g. certain revisions of Ampak AP6212 wireless
IC. Original firmware file from IC vendor is named
'fw_bcm43436b0.bin', but brcmfmac and also btbcm drivers report chip
id 43430, so requested firmware file name is
'brcmfmac43430b0-sdio.bin' in line with other 43430 revisions.

Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210804231308.576071-1-mike.rudenko@gmail.com
2021-08-21 19:58:02 +03:00
Arend van Spriel
1ce050c159 brcmfmac: support chipsets with different core enumeration space
Historically the broadcom wifi chipsets always had enumeration
space containing all core information at same place. However, for
new chipsets the ASIC developers moved away from that given fact.
So we have to accommodate that it can differ per chipset.

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>
Link: https://lore.kernel.org/r/1627505434-9544-5-git-send-email-arend.vanspriel@broadcom.com
2021-08-21 18:49:05 +03:00
Arend van Spriel
a7dd0ac945 brcmfmac: add xtlv support to firmware interface layer
Newer firmware API require commands to use xtlv format. Add support
for that in the firmware interface layer.

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>
Link: https://lore.kernel.org/r/1627505434-9544-4-git-send-email-arend.vanspriel@broadcom.com
2021-08-21 18:49:04 +03:00
Arend van Spriel
8e73facb9b brcmfmac: increase core revision column aligning core list
Some cores are getting a revision greater that 99 thus messing up
the column alignment in the list of cores. So adding a digit for
the core revision.

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>
Link: https://lore.kernel.org/r/1627505434-9544-3-git-send-email-arend.vanspriel@broadcom.com
2021-08-21 18:49:04 +03:00
Arend van Spriel
2c4fa29ece brcmfmac: use different error value for invalid ram base address
The function brcmf_chip_tcm_rambase() returns 0 as invalid ram base
address. However, upcoming chips have ram base address starting at
zero so we have to find a more appropriate invalid value to return.

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>
Link: https://lore.kernel.org/r/1627505434-9544-2-git-send-email-arend.vanspriel@broadcom.com
2021-08-21 18:49:03 +03:00
Linus Walleij
c2dac3d2d3 brcmfmac: firmware: Fix firmware loading
The patch that would first try the board-specific firmware
had a bug because the fallback would not be called: the
asynchronous interface is used meaning request_firmware_nowait()
returns 0 immediately.

Harden the firmware loading like this:

- If we cannot build an alt_path (like if no board_type is
  specified) just request the first firmware without any
  suffix, like in the past.

- If the lookup of a board specific firmware fails, we get
  a NULL fw in the async callback, so just try again without
  the alt_path from a dedicated brcm_fw_request_done_alt_path
  callback.

- Drop the unnecessary prototype of brcm_fw_request_done.

- Added MODULE_FIRMWARE match for per-board SDIO bins, making
  userspace tools to pull all the relevant firmware files.

Fixes: 5ff013914c ("brcmfmac: firmware: Allow per-board firmware binaries")
Cc: Stefan Hansson <newbyte@disroot.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210808180510.8753-1-digetx@gmail.com
2021-08-21 18:45:30 +03:00
Linus Walleij
5ff013914c brcmfmac: firmware: Allow per-board firmware binaries
After some crashes in the 3D engine (!) on the Samsung GT-I8530
it turns out that the main firmware file can be device dependent,
something that was previously only handled for the NVRAM
parameter file.

Rewrite the code a bit so we can a per-board suffixed firmware
binary as well, if this does not exist we fall back to the
canonical firmware name.

Example: a 4330 device with the OF board compatible is
"samsung,gavini". We will first try
"brcmfmac4330-sdio.samsung,gavini.bin" then "brcmfmac4330-sdio.bin"
if that does not work.

Cc: phone-devel@vger.kernel.org
Cc: newbyte@disroot.org
Cc: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210711231659.255479-1-linus.walleij@linaro.org
2021-08-01 13:26:59 +03:00
Linus Torvalds
f5c13f1fde Driver core changes for 5.14-rc1
Here is the small set of driver core and debugfs updates for 5.14-rc1.
 
 Included in here are:
 	- debugfs api cleanups (touched some drivers)
 	- devres updates
 	- tiny driver core updates and tweaks
 
 Nothing major in here at all, and all have been in linux-next for a
 while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core changes from Greg KH:
 "Here is the small set of driver core and debugfs updates for 5.14-rc1.

  Included in here are:

   - debugfs api cleanups (touched some drivers)

   - devres updates

   - tiny driver core updates and tweaks

  Nothing major in here at all, and all have been in linux-next for a
  while with no reported issues"

* tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits)
  docs: ABI: testing: sysfs-firmware-memmap: add some memmap types.
  devres: Enable trace events
  devres: No need to call remove_nodes() when there none present
  devres: Use list_for_each_safe_from() in remove_nodes()
  devres: Make locking straight forward in release_nodes()
  kernfs: move revalidate to be near lookup
  drivers/base: Constify static attribute_group structs
  firmware_loader: remove unneeded 'comma' macro
  devcoredump: remove contact information
  driver core: Drop helper devm_platform_ioremap_resource_wc()
  component: Rename 'dev' to 'parent'
  component: Drop 'dev' argument to component_match_realloc()
  device property: Don't check for NULL twice in the loops
  driver core: auxiliary bus: Fix typo in the docs
  drivers/base/node.c: make CACHE_ATTR define static DEVICE_ATTR_RO
  debugfs: remove return value of debugfs_create_ulong()
  debugfs: remove return value of debugfs_create_bool()
  scsi: snic: debugfs: remove local storage of debugfs files
  b43: don't save dentries for debugfs
  b43legacy: don't save dentries for debugfs
  ...
2021-07-05 13:51:41 -07:00
Shawn Guo
1a3ac5c651 brcmfmac: support parse country code map from DT
With any regulatory domain requests coming from either user space or
802.11 IE (Information Element), the country is coded in ISO3166
standard.  It needs to be translated to firmware country code and
revision with the mapping info in settings->country_codes table.
Support populate country_codes table by parsing the mapping from DT.

The BRCMF_BUSTYPE_SDIO bus_type check gets separated from general DT
validation, so that country code can be handled as general part rather
than SDIO bus specific one.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210417075428.2671-1-shawn.guo@linaro.org
2021-06-24 19:20:31 +03:00
Dmitry Osipenko
78f0a64f66 brcmfmac: Silence error messages about unsupported firmware features
KMSG is flooded with error messages about unsupported firmware
features of BCM4329 chip. The GET_ASSOCLIST error became especially
noisy with a newer NetworkManager version of Ubuntu 21.04. Turn the
noisy error messages into info messages and print them out only once.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210511211549.30571-2-digetx@gmail.com
2021-06-23 20:44:25 +03:00
Shaokun Zhang
5a8e5dae2a brcmsmac: Remove the repeated declaration
Function 'brcms_c_stf_phy_txant_upd' are declared twice, remove
the repeated declaration.

Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1621844443-38290-1-git-send-email-zhangshaokun@hisilicon.com
2021-06-15 13:43:22 +03:00
Christophe JAILLET
9a25344d51 brcmsmac: mac80211_if: Fix a resource leak in an error handling path
If 'brcms_attach()' fails, we must undo the previous 'ieee80211_alloc_hw()'
as already done in the remove function.

Fixes: 5b435de0d7 ("net: wireless: add brcm80211 drivers")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/8fbc171a1a493b38db5a6f0873c6021fca026a6c.1620852921.git.christophe.jaillet@wanadoo.fr
2021-06-15 13:42:53 +03:00
Guenter Roeck
34fe7038a3 brcmsmac: Drop unnecessary NULL check after container_of
The parameter passed to ai_detach() is guaranteed to never be NULL
because it is checked by the caller. Consequently, the result of
container_of() on it is also never NULL, and a NULL check on it
is unnecessary. Even without that, the NULL check would still be
unnecessary because the subsequent kfree() can handle NULL arguments.
On top of all that, it is misleading to check the result of container_of()
against NULL because the position of the contained element could change,
which would make the check invalid. Remove it.

This change was made automatically with the following Coccinelle script.

@@
type t;
identifier v;
statement s;
@@

<+...
(
  t v = container_of(...);
|
  v = container_of(...);
)
  ...
  when != v
- if (\( !v \| v == NULL \) ) s
...+>

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210511235629.1686038-1-linux@roeck-us.net
2021-06-15 13:42:30 +03:00
Íñigo Huguet
c0277e25d2 brcmsmac: improve readability on addresses copy
A static analyzer identified as a potential bug the copy of
12 bytes from a 6 bytes array to a 6 bytes array. Both
arrays are 6 bytes addresses.

Although not being a real bug, it is not immediately clear
why is done this way: next 6 bytes address, contiguous to
the first one, must also be copied to next contiguous 6 bytes
address of the destination.

Copying each one separately will make both static analyzers
and reviewers happier.

Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210511070257.7843-1-ihuguet@redhat.com
2021-06-15 13:40:15 +03:00
Matthias Brugger
885f256f61 brcmfmac: Add clm_blob firmware files to modinfo
Cypress Wi-Fi chipsets include information regarding regulatory
constraints. These are provided to the driver through "Country Local
Matrix" (CLM) blobs. Files present in Linux firmware repository are
on a generic world-wide safe version with conservative power
settings which is designed to comply with regulatory but may not
provide best performance on all boards. Never the less, a better
functionality can be expected with the file present, so add it to the
modinfo of the driver.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210607103433.21022-1-matthias.bgg@kernel.org
2021-06-15 13:38:17 +03:00
Matthias Brugger
4a26aafe48 brcmfmac: Delete second brcm folder hierarchy
BRCMF_FW_DEFAULT_PATH already defines the brcm folder, delete the second
folder to match with Linux firmware repository layout.

Fixes: 75729e110e ("brcmfmac: expose firmware config files through modinfo")
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210602144305.4481-1-matthias.bgg@kernel.org
2021-06-15 13:37:49 +03:00
Tong Tiangen
7ea7a1e05c brcmfmac: Fix a double-free in brcmf_sdio_bus_reset
brcmf_sdiod_remove has been called inside brcmf_sdiod_probe when fails,
so there's no need to call another one. Otherwise, sdiodev->freezer
would be double freed.

Fixes: 7836102a75 ("brcmfmac: reset SDIO bus on a firmware crash")
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210601100128.69561-1-tongtiangen@huawei.com
2021-06-15 13:37:31 +03:00
Yang Shen
ea3f903cae brcmfmac: Demote non-compliant kernel-doc headers
Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:2040: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:1295: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Yang Shen <shenyang39@huawei.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210517050141.61488-5-shenyang39@huawei.com
2021-06-15 13:37:12 +03:00
Alvin Šipraga
9a1590934d brcmfmac: correctly report average RSSI in station info
The rx_lastpkt_rssi field provided by the firmware is suitable for
NL80211_STA_INFO_{SIGNAL,CHAIN_SIGNAL}, while the rssi field is an
average. Fix up the assignments and set the correct STA_INFO bits. This
lets userspace know that the average RSSI is part of the station info.

Fixes: cae355dc90 ("brcmfmac: Add RSSI information to get_station.")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210506132010.3964484-2-alsi@bang-olufsen.dk
2021-06-15 13:36:45 +03:00
Alvin Šipraga
feb4564376 brcmfmac: fix setting of station info chains bitmask
The sinfo->chains field is a bitmask for filled values in chain_signal
and chain_signal_avg, not a count. Treat it as such so that the driver
can properly report per-chain RSSI information.

Before (MIMO mode):

  $ iw dev wlan0 station dump
      ...
      signal: -51 [-51] dBm

After (MIMO mode):

  $ iw dev wlan0 station dump
      ...
      signal: -53 [-53, -54] dBm

Fixes: cae355dc90 ("brcmfmac: Add RSSI information to get_station.")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210506132010.3964484-1-alsi@bang-olufsen.dk
2021-06-15 13:36:45 +03:00
Shawn Guo
b0b524f079 brcmfmac: use ISO3166 country code and 0 rev as fallback
Instead of aborting country code setup in firmware, use ISO3166 country
code and 0 rev as fallback, when country_codes mapping table is not
configured.  This fallback saves the country_codes table setup for recent
brcmfmac chipsets/firmwares, which just use ISO3166 code and require no
revision number.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210425110200.3050-1-shawn.guo@linaro.org
2021-06-15 13:36:16 +03:00
Colin Ian King
fef1cdbba4 b43legacy: Fix spelling mistake "overflew" -> "overflowed"
There is a spelling mistake in a comment. 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/20210601102855.8884-1-colin.king@canonical.com
2021-06-03 12:31:53 +03:00
YueHaibing
d1dbaa5419 b43legacy: Remove unused inline function txring_to_priority()
commit 5d07a3d62f ("b43legacy: Avoid packet losses in the dma worker code")
left behind this.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210529115131.6028-1-yuehaibing@huawei.com
2021-06-03 12:31:13 +03:00
Zhen Lei
da16f5be45 b43: phy_n: Delete some useless TODO code
These TODO empty code are added by
commit 9442e5b58e ("b43: N-PHY: partly implement SPUR workaround"). It's
been more than a decade now. I don't think anyone who wants to perfect
this workaround can follow this TODO tip exactly. Instead, it limits them
to new thinking. Remove it will be better.

No functional change.

By the way, this helps reduce some binary code size.
Before:
text    data    bss     dec     hex
74472   9967    0       84439   149d7

After:
text    data    bss     dec     hex
74408   9919    0       84327   14967

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210511034203.4122-2-thunder.leizhen@huawei.com
2021-06-03 12:30:43 +03:00
Greg Kroah-Hartman
92722bac5f Merge 5.13-rc4 into driver-core-next
We need the driver core fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-31 09:10:03 +02:00
Greg Kroah-Hartman
77b98d456d b43: don't save dentries for debugfs
There is no need to keep around the dentry pointers for the debugfs
files as they will all be automatically removed when the subdir is
removed.  So save the space and logic involved in keeping them around by
just getting rid of them entirely.

By doing this change, we remove one of the last in-kernel user that was
storing the result of debugfs_create_bool(), so that api can be cleaned
up.

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Chao Yu <chao@kernel.org>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: b43-dev@lists.infradead.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210518163304.3702015-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-21 20:46:41 +02:00
Greg Kroah-Hartman
2435628e56 b43legacy: don't save dentries for debugfs
There is no need to keep around the dentry pointers for the debugfs
files as they will all be automatically removed when the subdir is
removed.  So save the space and logic involved in keeping them around by
just getting rid of them entirely.

By doing this change, we remove one of the last in-kernel user that was
storing the result of debugfs_create_bool(), so that api can be cleaned
up.

Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: b43-dev@lists.infradead.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210518163309.3702100-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-21 20:46:37 +02:00
Greg Kroah-Hartman
419b4a142a brcmfmac: properly check for bus register errors
The brcmfmac driver ignores any errors on initialization with the
different busses by deferring the initialization to a workqueue and
ignoring all possible errors that might happen.  Fix up all of this by
only allowing the module to load if all bus registering worked properly.

Cc: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-70-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-13 18:58:42 +02:00
Greg Kroah-Hartman
30a3509476 Revert "brcmfmac: add a check for the status of usb_register"
This reverts commit 42daad3343.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original commit here did nothing to actually help if usb_register()
failed, so it gives a "false sense of security" when there is none.  The
correct solution is to correctly unwind from this error.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-69-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-13 18:58:41 +02:00
Christophe JAILLET
7a4fc7154e brcmfmac: Avoid GFP_ATOMIC when GFP_KERNEL is enough
A workqueue is not atomic, so constraints can be relaxed here.
GFP_KERNEL can be used instead of GFP_ATOMIC.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/b6e619415db4ee5de95389280d7195bb56e45f77.1618860716.git.christophe.jaillet@wanadoo.fr
2021-04-22 17:41:10 +03:00
David S. Miller
08322284c1 Another set of updates, all over the map:
* set sk_pacing_shift for 802.3->802.11 encap offload
  * some monitor support for 802.11->802.3 decap offload
  * HE (802.11ax) spec updates
  * userspace API for TDLS HE support
  * along with various other small features, cleanups and
    fixups
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Merge tag 'mac80211-next-for-net-next-2021-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Another set of updates, all over the map:
 * set sk_pacing_shift for 802.3->802.11 encap offload
 * some monitor support for 802.11->802.3 decap offload
 * HE (802.11ax) spec updates
 * userspace API for TDLS HE support
 * along with various other small features, cleanups and
   fixups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-20 16:44:04 -07:00
Joe Perches
623b988f2d cfg80211: constify ieee80211_get_response_rate return
It's not modified so make it const with the eventual goal of moving
data to text for various static struct ieee80211_rate arrays.

Signed-off-by: Joe Perches <joe@perches.com>
Link: https://lore.kernel.org/r/8b210b5f5972e39eded269b35a1297cf824c4181.camel@perches.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-04-19 11:59:33 +02:00
Wan Jiabing
d663bc3317 brcmfmac: Remove duplicate struct declaration
struct brcmf_bus is declared twice. One has been declared
at 37th line. Remove the duplicate.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210331023557.2804128-2-wanjiabing@vivo.com
2021-04-18 09:33:05 +03:00
Bhaskar Chowdhury
705b5cfab1 brcmfmac: A typo fix
s/revsion/revision/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210323043657.1466296-1-unixbhaskar@gmail.com
2021-04-18 09:28:21 +03:00
David S. Miller
107adc6945 wireless-drivers fixes for v5.12
Third, and last, set of fixes for v5.12. Small fixes, iwlwifi having
 most of them. brcmfmac regression caused by cfg80211 changes is the
 most important here.
 
 iwlwifi
 
 * fix a lockdep warning
 
 * fix regulatory feature detection in certain firmware versions
 
 * new hardware support
 
 * fix lockdep warning
 
 * mvm: fix beacon protection checks
 
 mt76
 
 * mt7921: fix airtime reporting
 
 brcmfmac
 
 * fix a deadlock regression
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Merge tag 'wireless-drivers-2021-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for v5.12

Third, and last, set of fixes for v5.12. Small fixes, iwlwifi having
most of them. brcmfmac regression caused by cfg80211 changes is the
most important here.

iwlwifi

* fix a lockdep warning

* fix regulatory feature detection in certain firmware versions

* new hardware support

* fix lockdep warning

* mvm: fix beacon protection checks

mt76

* mt7921: fix airtime reporting

brcmfmac

* fix a deadlock regression
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-07 14:57:35 -07:00
Hans de Goede
bd83a2fc05 brcmfmac: p2p: Fix recently introduced deadlock issue
Commit a05829a722 ("cfg80211: avoid holding the RTNL when calling the
driver") replaced the rtnl_lock parameter passed to various brcmf
functions with just lock, because since that commit it is not just
about the rtnl_lock but also about the wiphy_lock .

During this search/replace the "if (!rtnl_locked)" check in brcmfmac/p2p.c
was accidentally replaced with "if (locked)", dropping the inversion of
the check. This causes the code to now call rtnl_lock() while already
holding the lock, causing a deadlock.

Add back the "!" to the if-condition to fix this.

Cc: Johannes Berg <johannes.berg@intel.com>
Fixes: a05829a722 ("cfg80211: avoid holding the RTNL when calling the driver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210313143635.109154-1-hdegoede@redhat.com
2021-03-23 11:37:15 +02:00
Leon Romanovsky
6417f03132 module: remove never implemented MODULE_SUPPORTED_DEVICE
MODULE_SUPPORTED_DEVICE was added in pre-git era and never was
implemented. We can safely remove it, because the kernel has grown
to have many more reliable mechanisms to determine if device is
supported or not.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-03-17 13:16:18 -07:00
David S. Miller
d489ded1a3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-02-16 17:51:13 -08:00
Colin Ian King
4773acf3d4 b43: N-PHY: Fix the update of coef for the PHY revision >= 3case
The documentation for the PHY update [1] states:

Loop 4 times with index i

    If PHY Revision >= 3
        Copy table[i] to coef[i]
    Otherwise
        Set coef[i] to 0

the copy of the table to coef is currently implemented the wrong way
around, table is being updated from uninitialized values in coeff.
Fix this by swapping the assignment around.

[1] https://bcm-v4.sipsolutions.net/802.11/PHY/N/RestoreCal/

Fixes: 2f258b74d1 ("b43: N-PHY: implement restoring general configuration")
Addresses-Coverity: ("Uninitialized scalar variable")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-15 12:40:41 -08:00
Bhaskar Chowdhury
1899e49385 brcmsmac: Fix the spelling configation to configuration in the file d11.h
s/configation/configuration/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210209232921.1255425-1-unixbhaskar@gmail.com
2021-02-11 08:44:41 +02:00
Alvin Šipraga
7dd56ea45a brcmfmac: add support for CQM RSSI notifications
Add support for CQM RSSI measurement reporting and advertise the
NL80211_EXT_FEATURE_CQM_RSSI_LIST feature. This enables a userspace
supplicant such as iwd to be notified of changes in the RSSI for roaming
and signal monitoring purposes.

Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210208125738.3546557-1-alsi@bang-olufsen.dk
2021-02-09 09:57:02 +02:00
Arnd Bergmann
38eb712ada brcmsmac: fix alignment constraints
sturct d11txh contains a ieee80211_rts structure, which is required to
have at least two byte alignment, and this conflicts with the __packed
attribute:

drivers/net/wireless/broadcom/brcm80211/brcmsmac/d11.h:786:1: warning: alignment 1 of 'struct d11txh' is less than 2 [-Wpacked-not-aligned]

Mark d11txh itself as having two-byte alignment to ensure the
inner structure is properly aligned.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210204162852.3219572-1-arnd@kernel.org
2021-02-08 13:03:22 +02:00
Hans de Goede
a338c874d3 brcmfmac: Add DMI nvram filename quirk for Voyo winpad A15 tablet
The Voyo winpad A15 tablet contains quite generic names in the sys_vendor
and product_name DMI strings, without this patch brcmfmac will try to load:
rcmfmac4330-sdio.To be filled by O.E.M.-To be filled by O.E.M..txt
as nvram file which is a bit too generic.

Add a DMI quirk so that a unique and clearly identifiable nvram file name
is used on the Voyo winpad A15 tablet.

While preparing a matching linux-firmware update I noticed that the nvram
is identical to the nvram used on the Prowise-PT301 tablet, so the new DMI
quirk entry simply points to the already existing Prowise-PT301 nvram file.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210129171413.139880-2-hdegoede@redhat.com
2021-02-08 13:02:41 +02:00
Hans de Goede
af4b3a6f36 brcmfmac: Add DMI nvram filename quirk for Predia Basic tablet
The Predia Basic tablet contains quite generic names in the sys_vendor and
product_name DMI strings, without this patch brcmfmac will try to load:
brcmfmac43340-sdio.Insyde-CherryTrail.txt as nvram file which is a bit
too generic.

Add a DMI quirk so that a unique and clearly identifiable nvram file name
is used on the Predia Basic tablet.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210129171413.139880-1-hdegoede@redhat.com
2021-02-08 13:02:39 +02:00
Jakub Kicinski
c90597bdeb wireless-drivers-next patches for v5.12
First set of patches for v5.12. A smaller pull request this time,
 biggest feature being a better key handling for ath9k. And of course
 the usual fixes and cleanups all over.
 
 Major changes:
 
 ath9k
 
 * more robust encryption key cache management
 
 brcmfmac
 
 * support BCM4365E with 43666 ChipCommon chip ID
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Merge tag 'wireless-drivers-next-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for v5.12

First set of patches for v5.12. A smaller pull request this time,
biggest feature being a better key handling for ath9k. And of course
the usual fixes and cleanups all over.

Major changes:

ath9k
 * more robust encryption key cache management

brcmfmac
 * support BCM4365E with 43666 ChipCommon chip ID

* tag 'wireless-drivers-next-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next: (35 commits)
  iwl4965: do not process non-QOS frames on txq->sched_retry path
  mt7601u: process tx URBs with status EPROTO properly
  wlcore: Fix command execute failure 19 for wl12xx
  mt7601u: use ieee80211_rx_list to pass frames to the network stack as a batch
  rtw88: 8723de: adjust the LTR setting
  rtlwifi: rtl8821ae: fix bool comparison in expressions
  rtlwifi: rtl8192se: fix bool comparison in expressions
  rtlwifi: rtl8188ee: fix bool comparison in expressions
  rtlwifi: rtl8192c-common: fix bool comparison in expressions
  rtlwifi: rtl_pci: fix bool comparison in expressions
  wlcore: Downgrade exceeded max RX BA sessions to debug
  wilc1000: use flexible-array member instead of zero-length array
  brcmfmac: clear EAP/association status bits on linkdown events
  brcmfmac: Delete useless kfree code
  qtnfmac_pcie: Use module_pci_driver
  mt7601u: check the status of device in calibration
  mt7601u: process URBs in status EPROTO properly
  brcmfmac: support BCM4365E with 43666 ChipCommon chip ID
  wilc1000: fix spelling mistake in Kconfig "devision" -> "division"
  mwifiex: pcie: Drop bogus __refdata annotation
  ...
====================

Link: https://lore.kernel.org/r/20210205161901.C7F83C433ED@smtp.codeaurora.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-06 09:36:04 -08:00
Johannes Berg
a05829a722 cfg80211: avoid holding the RTNL when calling the driver
Currently, _everything_ in cfg80211 holds the RTNL, and if you
have a slow USB device (or a few) you can get some bad lock
contention on that.

Fix that by re-adding a mutex to each wiphy/rdev as we had at
some point, so we have locking for the wireless_dev lists and
all the other things in there, and also so that drivers still
don't have to worry too much about it (they still won't get
parallel calls for a single device).

Then, we can restrict the RTNL to a few cases where we add or
remove interfaces and really need the added protection. Some
of the global list management still also uses the RTNL, since
we need to have it anyway for netdev management, but we only
hold the RTNL for very short periods of time here.

Link: https://lore.kernel.org/r/20210122161942.81df9f5e047a.I4a8e1a60b18863ea8c5e6d3a0faeafb2d45b2f40@changeid
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> [marvell driver issues]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-01-26 11:55:50 +01:00
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
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