Descriptors preparation is moved to core instead of HAL to
avoid synchronization issues in sending TX frames
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
All descriptor structures are in rsi_mgmt.h except this
extended descriptor structure. Hence moving it to rsi_mgmt.h
and also renaming to rsi_xtend_desc.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Variable buffer_size is re-assigned the same value, this duplicated
assignment is redundant and can be removed.
Cleans up clang warning:
drivers/net/wireless/rsi/rsi_91x_usb.c:140:4: warning: Value stored
to 'buffer_size' is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The use of stack Variable Length Arrays needs to be avoided, as they
can be a vector for stack exhaustion, which can be both a runtime bug
(kernel Oops) or a security flaw (overwriting memory beyond the
stack). Also, in general, as code evolves it is easy to lose track of
how big a VLA can get. Thus, we can end up having runtime failures
that are hard to debug. As part of the directive[1] to remove all VLAs
from the kernel, and build with -Wvla.
Currently rsi code uses a VLA based on a function argument to
`rsi_sdio_load_data_master_write()`. The function call chain is
Both these functions
rsi_sdio_reinit_device()
rsi_probe()
start the call chain:
rsi_hal_device_init()
rsi_load_fw()
auto_fw_upgrade()
ping_pong_write()
rsi_sdio_load_data_master_write()
[Without familiarity with the code] it appears that none of the 4 locks
mutex
rx_mutex
tx_mutex
tx_bus_mutex
are held when `rsi_sdio_load_data_master_write()` is called. It is therefore
safe to use kmalloc with GFP_KERNEL.
We can avoid using the VLA by using `kmalloc()` and free'ing the memory on all
exit paths.
Change buffer from 'u8 array' to 'u8 *'. Call `kmalloc()` to allocate memory for
the buffer. Using goto statement to call `kfree()` on all return paths.
It can be expected that this patch will result in a small increase in overhead
due to the use of `kmalloc()` however this code is only called on initialization
(and re-initialization) so this overhead should not degrade performance.
[1] https://lkml.org/lkml/2018/3/7/621
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The linkage between the bluetooth driver and the wireless
driver is not defined properly, leading to build problems
such as:
warning: (BT_HCIRSI) selects RSI_COEX which has unmet direct dependencies (NETDEVICES && WLAN && WLAN_VENDOR_RSI && BT_HCIRSI && RSI_91X)
drivers/net/wireless/rsi/rsi_91x_main.o: In function `rsi_read_pkt':
(.text+0x205): undefined reference to `rsi_bt_ops'
As the dependency is actually the reverse (RSI_91X uses
the BT_RSI driver, not the other way round), this changes
the dependency to match, and enables the bluetooth driver
from the RSI_COEX symbol.
Fixes: 38aa4da504 ("Bluetooth: btrsi: add new rsi bluetooth driver")
Acked-by; Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Lots of the wireless driver vendor Kconfig symol help text says
"questions about cards." (2 spaces between "about" and "cards")
Besides dropping one of those spaces, it also needs some other word
inserted there. Instead of putting each vendor's name there, I chose
to say "these" cards in all of the Kconfig help text.
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Curretly, RX packet processing is done sequencially. To improve
the efficiency, RX skb queue is introduced.
Here, while preparing RX URB skb is allocated and used
for RX buffer. When rx done handler is called, enqueue the skb
to rx_q and set the thread event.
RX thread is modified to dequeue packets from skb queue and
process further.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Currently 2 RX control blocks are allocated by default.
If wifi alone mode is used rx control block 2 is unusable.
So, changes are done accordingly in all places to use
RX control blocks dynamically based on coex mode check.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Currently, RX packets are handled in interrupt context in SDIO
interface. To improve the efficiency of processing RX packets,
RX thread and RX skb queues are introduced.
When the packet is read from device, driver prepares skb, add to
RX queue and trigger RX thread event. RX thread processes the
packets from RX queue.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Queue number is correctly updated for BT traffic. Also, kzalloc
instead of kmalloc is used for Rx packet allocation.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Operating mode determines the support for other protocols.
This is made as module parameter for better usage.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
BT frames are passed through coex and hal modules to BUS.
After firmware is loaded, based on the operating mode CARD
READY frame comes for each protocol. When BT card ready is
received, BT attach is called.
Protocol operations are exchanged between the modules
at initialization time.
Build flag CONFIG_RSI_COEX is introduced to enable coex support
if CONFIG_BT_RSIHCI is enabled. Coex operations are valid if
coex mode is greater than 1 only.
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
With BT support, driver has to handle two streams of data
(i.e. wlan and BT). Actual coex implementation is in firmware.
Coex module just schedule the packets to firmware by taking them
from the corresponding paths.
Structures for module and protocol operations are introduced for
this purpose. Protocol operations structure is global structure
which can be shared among different modules. Move initialization
of coex and operating mode values to rsi_91x_init().
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The common parameters used by wlan and bt modules are add
to a new header file "rsi_91x.h" defined in 'include/net'
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Rx bluetooth endpoint shall be added in further patches. Rx control
block is introduced here to handle Rx packets properly. Separate
function is written to initialize the RX control blocks.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In the cases where len is too long, the error return path fails to
kfree allocated buffers buf and usb_reg_buf. The simplest fix is to
perform the sanity check on len before the allocations to avoid having
to do the kfree'ing in the first place.
Detected by CoverityScan, CID#1452258,1452259 ("Resource Leak")
Fixes: 59f73e2ae1 ("rsi: check length before USB read/write register")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
"INVALID_STATE" is already being returned in the default case and this
code cannot be reached.
Addresses-Coverity-ID: 1398384
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Mostly fixes this time, but also few new features.
Major changes:
wil6210
* remove ssid debugfs file
rsi
* add WOWLAN support for suspend, hibernate and shutdown states
ath10k
* add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
where it's supported (QCA99x0 and QCA4019)
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Merge tag 'wireless-drivers-next-for-davem-2017-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.15
Mostly fixes this time, but also few new features.
Major changes:
wil6210
* remove ssid debugfs file
rsi
* add WOWLAN support for suspend, hibernate and shutdown states
ath10k
* add support for CCMP-256, GCMP and GCMP-256 ciphers on hardware
where it's supported (QCA99x0 and QCA4019)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Files removed in 'net-next' had their license header updated
in 'net'. We take the remove from 'net-next'.
Signed-off-by: David S. Miller <davem@davemloft.net>
Some wowlan related code was outside CONFIG_PM flag which caused these
build errors. They are fixed by moving that code under CONFIG_PM flag.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: ef71ed0608c ("rsi: sdio: Add WOWLAN support for S5 shutdown state")
Fixes: a24e35fcee0 ("rsi: sdio: Add WOWLAN support for S4 hibernate state")
Fixes: e1ced6422a3 ("rsi: sdio: add WOWLAN support for S3 suspend state")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This function is generic. It doesn't contain wowlan specific code.
It should not be under CONFIG_PM. This patch resolves compilation
errors observed when CONFIG_PM flag is disabled.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: ef71ed0608c ("rsi: sdio: Add WOWLAN support for S5 shutdown state")
Fixes: a24e35fcee0 ("rsi: sdio: Add WOWLAN support for S4 hibernate state")
Fixes: e1ced6422a3 ("rsi: sdio: add WOWLAN support for S3 suspend state")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Unlike other power states, WoWLAN configuration does not come from
mac80211 for shutdown. Hence configuring the WoWLAN from shut down
callback it self. Remaining steps of disabling SDIO interrupts,
setting 'MMC_PM_KEEP_POWER' flag are same as other power states.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We are disabling of interrupts from firmware in freeze handler.
Also setting power management capability KEEP_MMC_POWER to make
device wakeup for WoWLAN trigger.
At restore, we observed a device reset on some platforms. Hence
reloading of firmware and device initialization is performed.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
WoWLAN is supported in RS9113 device through GPIO pin2.
wowlan config frame is internally sent to firmware in mac80211
suspend handler. Also beacon miss threshold and keep-alive time
values are increased to avoid un-necessary disconnection with AP.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Cc: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Cc: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Cc: Karun Eagalapati <karun256@gmail.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The first pull request for 4.15, unusually late this time but still
relatively small. Also includes merge from wireless-drivers to fix
conflicts in iwlwifi.
Major changes:
rsi
* add P2P mode support
* sdio suspend and resume support
iwlwifi
* A fix and an addition for PCI devices for the A000 family
* Dump PCI registers when an error occurs, to make it easier to debug
rtlwifi
* add support for 64 bit DMA, enabled with a module parameter
* add module parameter to enable ASPM
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Merge tag 'wireless-drivers-next-for-davem-2017-10-18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.15
The first pull request for 4.15, unusually late this time but still
relatively small. Also includes merge from wireless-drivers to fix
conflicts in iwlwifi.
Major changes:
rsi
* add P2P mode support
* sdio suspend and resume support
iwlwifi
* A fix and an addition for PCI devices for the A000 family
* Dump PCI registers when an error occurs, to make it easier to debug
rtlwifi
* add support for 64 bit DMA, enabled with a module parameter
* add module parameter to enable ASPM
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc produces a harmless warning about a recently introduced
signed integer overflow:
drivers/net/wireless/rsi/rsi_91x_hal.c: In function 'rsi_prepare_mgmt_desc':
include/uapi/linux/swab.h:13:15: error: integer overflow in expression [-Werror=overflow]
(((__u16)(x) & (__u16)0x00ffU) << 8) | \
~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
include/uapi/linux/swab.h:104:2: note: in expansion of macro '___constant_swab16'
___constant_swab16(x) : \
^~~~~~~~~~~~~~~~~~
include/uapi/linux/byteorder/big_endian.h:34:43: note: in expansion of macro '__swab16'
#define __cpu_to_le16(x) ((__force __le16)__swab16((x)))
^~~~~~~~
include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__cpu_to_le16'
#define cpu_to_le16 __cpu_to_le16
^~~~~~~~~~~~~
drivers/net/wireless/rsi/rsi_91x_hal.c:136:3: note: in expansion of macro 'cpu_to_le16'
cpu_to_le16((tx_params->vap_id << RSI_DESC_VAP_ID_OFST) &
^~~~~~~~~~~
The problem is that the 'mask' value is a signed integer that gets
turned into a negative number when truncated to 16 bits. Making it
an unsigned constant avoids this.
Fixes: eac4eed322 ("rsi: tx and rx path enhancements for p2p mode")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
SDIO suspend and resume handlers are implemented and verified
that device works after suspend/resume cycle.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We will dump information about firmware version, firmware file
name and operating mode during initialization.
Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Use setup_timer function instead of initializing timer with the
function and data fields.
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The assignment of dev is dereferencing adapter before adapter has
been null checked, potentially leading to a null pointer dereference.
Fix this by simply moving the assignment of dev to a later point
after the sanity null check of adapter.
Detected by CoverityScan CID#1398383 ("Dereference before null check")
Fixes: dad0d04fa7 ("rsi: Add RS9113 wireless driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Add P2P_GO condition as well when handling BEACON_ENABLE
from mac80211. Also passing 'vif' for auto rate request.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
P2P Go condition is added wherever AP mode is there
in aggregation path.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When AP or P2P GO VAP is running, power save configuration should
be disallowed. To check interface type in power save configuration
'vif' parameters is passed.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Data descriptor is updated to include vap_id. TX command frame
key config also updated to include vap_id.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Parameter 'vif' is passed to inform_bss_status function to
check the type of vif and to get vap_id.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Remain-on-channel and cancel-remain-on-channel are implemented
to support p2p listen phase.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
STA_OPMODE and AP_OPMODE macros are renamed to RSI_OPMODE_STA
and RSI_OPMODE_AP. New opmodes are added to this list for P2P
support. Mapping of mac80211 interface types to rsi interface
types are added.
Add and remove interface callbacks are handled for P2P mode.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch adds p2p supported parameters to mac80211 hw and
wiphy structures during mac80211 registration.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
calling memcpy immediately after memset with the same region of memory
makes memset redundant.
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
There is a missing unlock if rsi_find_sta() fails in
rsi_mac80211_ampdu_action() or if we hit the -EINVAL path in
rsi_mac80211_sta_add().
Fixes: 3528608f3a ("rsi: handle station connection in AP mode")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
ieee80211_ops are not supposed to change at runtime. All functions
working with ieee80211_ops provided by <net/mac80211.h> work with
const ieee80211_ops. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Station id should be set in load key frame configured to device.
For WEP mode, key is configured once from mac80211. This key is
saved and configured to device every time a station is connected.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
TX command frame ampdu aggregation parameters is updated to
include sta_id for AP mode.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Auto rate frame is sent to firmware when a new station is
connected. Station id and station's ht capabilities are updated
in auto rate command frame.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
TX command frame auto rate request is modified to use common
descriptor struture.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Station id needs to be get for data and management frames
to fill in the descruptor for AP mode. Few other changes
related to AP mode are covered here.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When sta_remove of mac80211 is called, driver iterates through
list of existing stations to get the station id. Then peer notify
is prepared and send to firmare.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Station structures are maintained in driver with required
fields. When mac80211 callback sta_add is called, driver
iterates through list of connected stations to check available
index and assigns station id which is important for further
communication to that station. Then peer notify frame is send
to firmware to inform the firmware about new station connection.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Mac80211 config parameter BEACON_ENABLE is handled. When VAP
capabilities frame with AP mode is configured to firmware, beacon
events start coming to host at each PreTBTT. At this time, beacon
is taken from mac80211, descriptor is prepared and send to firmware.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
remove_interface callback of mac80211 is handled for AP mode.
Same is notified to firmware through vap_capabilities frame
with VAP status VAP_DELETE.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
AP mode is handled in add_interface callback of mac80211.
Also for AP mode, sending rx filter frame to disallow beacons
to host is added. Station structures are initialized to NULL.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
AP mode support is advertised to cfg80211. Necessary wiphy
parameters are initialized.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Provision is added for configuring RTS threshold by sending
vap dynamic update frame to firmware.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
BUFFER_AVAILABLE interrupt is sent by firmware to indicate
change in buffer status. We should check buffer status while
handling this interrupt. Currently buffer status is checked
only while dequeueing packets. This patch fixes a data
traffic stuck problem observed occasionally.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We get buffer full event from firmware whenever Tx queue is full
Host should stop writing packets after this and resume after
buffer free event.
Buffer status checking is optimized for once in 4 times if
BUFF_FULL condition is not set, otherwise once for every
packet.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
rsi_sdio_check_buffer_status would be the appropriate name
for this function as we are checking hardware buffers
availability status.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch adds support for U-APSD power save. Configuration
frame is downloaded to firmware with default settings and
support is advertised to mac80211
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch adds support for legacy power save. Necessary
configuration frames are downloaded to firmware when power save
is enabled/disabled
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
TX command frame set_antenna is modified to use common
descriptor structure. Also it's subframe type is set.
Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch implements rfkill_poll handler. Also, necessary changes
are done in interface up and down handler to support rfkill
functionality.
Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch fixes the uninitialized descriptor pointer
issue in function rsi_send_internal_mgmt_frame().
Descriptor should point to start of the skb data.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 9a629fafe7 ("rsi: immediate wakeup bit and priority for TX command packets")
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
u32 pointer is changed to u16 and filled the value. Problem is
solved by using local temporary variable. Below static checker
warning was reported.
drivers/net/wireless/rsi/rsi_91x_usb.c:400 rsi_usb_master_reg_read()
warn: passing casted pointer 'value' to 'rsi_usb_reg_read()'
32 vs 16.
Fixes: b97e9b94ad ("rsi: Add new host interface operations")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
These checks are required. Otherwise we may end up getting
memory corruption if invalid length is passed.
Fixes: b97e9b94ad ("rsi: Add new host interface operations")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
4 bytes is fixed size for reading or writing USB register. We
will use a macro instead of hardcoding this.
Fixes: b97e9b94ad ("rsi: Add new host interface operations")
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Below regulatory changes are included this patch
* Country code is saved as it will be used in bgscan.
* Region codes are mapped according to RSI region codes.
* Radar flag settings are moved under the check if 5GHZ band
is enabled.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When interface is down it is better to stop all RX packets to
host. 0xffff will block all packets to host.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Device specific descriptor for each TX packet is prepared on top of
skb data address. This descriptor should be pulled out before
indicating the TX status to mac80211.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
TX command frame block/unblock data is modified to
use common descriptor structure.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Data queues should be unblocked after station add notify frame
is sent and should be blocked after station delete notify is sent.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When Short Gaurd Interval is enabled bit 9 is set in rate. Otherwise
it should not be set. Added missing 'else' case in this patch.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Broadcast bit to be set for broadcast and multicast packets.
For remove_key, tx and rx mic need not be filled.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
TX command frame set_key is modified to use common descriptor
structure.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
VAP capablities frame configured to device is modified to use
common descriptor structure.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
TX command frame set_channel is modified to use common
descriptor structure. Also DFS channel indication to firmware
is added in the descriptor for dfs channels configuration.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Baseband RF programming frame configured to device is modified
to use common descriptor structure.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
AMPDU aggregation parameters frame configured to device is
modified to use common descriptor structure.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
TX command frame peer notify is updated to use common descriptor
structure. MPDU density value added to the frame.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The function rsi_mgmt_pkt_to_core() is for passing the 802.11
management frames to mac80211. So, it is unnecessary to check
again for the frame type 802.11 management in this function.
It can be checked before passing to this function.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Radio capabilities frame is updated to use common descriptor
structure. Also, few changes to this frame is done like hardware
queues are increase to 12 from 8, default channel number is included.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
For all TX command packets immediate wakeup bit needs to be
set in descriptor. This will make sure device will wakeup if it
is in any sleep state. Priority of the packet is also set.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
All internal management packets (command packets) use some common
fields and some packet specific fields for packet descriptors.
This patch adds some common structures which are needed for all
command packets.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We have now added separate lock for Rx. This lock is used to protect
tx path only
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Deadlock issue is observed during our stress tests. The root
cause for the issue is same lock is used between tx and rx threads.
This patch adds a separate mutex lock for rx thread to resolve
the problem.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Newer firmware sends information about number of blocks through
interrupt only. We don't need to read extra register for this.
This patch adds needed driver changes for this enhancment. The
change here is backward compatible
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
SDIO host is already claimed in our interrupt handler. Some lower
level APIs claims host while performing SDIO read or write operations.
Let's use sdio_irq_task variable to check if we are in interrupt
context and claim/release the host accordingly.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The variable in_sdio_litefi_irq is renamed to sdio_irq_task,
as it is more relevant here.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Data packet descriptor preparation code is moved a separate
function.
Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch covers some enhancements in data packet descriptor
preparation especially for EAPOL, multicast/broadcast packets.
Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Currently this descriptor is prepared with the help of __le16
pointer. This patch makes use of a structure to prepare the
descriptor in a cleaner way.
Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Management descriptor preparation is move to a separate function
as it will be called from a different context in upcoming patches.
Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Currently this descriptor is prepared with the help of __le16
pointer. This patch makes use of a structure to prepare the
descriptor in a cleaner way.
Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
immediate wakeup bit is set while sending internal management
frame to the firmware.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Till now only management packets were handled. Let's enhance
the logic for choosing endpoint to accommodate other packets.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
These endpoints are for WLAN and BT protocols.
Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
