Current code does not check whether main_work_queue or
rx_work_queue is running when preparing to do queue_work,
this code fix add check before calling queue_work, reducing
unnecessary queue_work switch.

This change instead sets more_task flag to ensure we run main_process
superloop once again.
Signed-off-by: NShengzhen Li <szli@marvell.com>
Signed-off-by: NZhaoyang Liu <liuzy@marvell.com>
Reviewed-by: NCathy Luo <cluo@marvell.com>
Reviewed-by: NAmitkumar Karwar <akarwar@marvell.com>
Reviewed-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Rename this function to reflect its purpose correctly.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

A crash was detected while changing virtual interface type is in
progress. This was tracked to race condition in accessing bss_priority
table while change is in progress. This patch ensures that main_process
and rx_process works are locked while we change virtual interface.
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support for auto ARP feature in mwifiex.
The device will respond to ARP requests from the network
with ARP response in suspended state without waking up the host.
This feature is enabled in the driver by default.
Signed-off-by: NMaithili Hinge <maithili@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support for DMA alignment of sk_buffs
allocated for RX.
Patch also adds support to modify skb allocation flags.
Signed-off-by: NMarc Yang <yangyang@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch handles a corner case where TX packet would remain in
driver queue till next packet comes in.
Here is sequence:
1. TX packet is queued via hard_start_xmit and main_work is queued
2. SDIO interrupt comes in which directly call mwifiex_main_process.
This starts executing main superloop.
3. Now work from step1 is scheduled but at first check itself it sees
mwifiex_processing is set and exits.
4. Now if superloop from step2 has passed TX processing part of superloop
this packet would remain in queue until next packet/command/SDIO interrupt
arrives and queues main_work.

This patch fixes this corner case by defining more_task flag which is set when
mwifiex_processing is found to be true. At end of superloop we again check if
more_task flag is set and if set, execute superloop again.
Signed-off-by: NShengzhen Li <szli@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch enables 11h extensions in FW upon detecting DFS
channel in start radar detection/channel switch handlers.
Patch also takes care of disabling 11h when non DFS channels
are to be set during start_ap handler.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds cfg80211 channel_switch support for mwifiex.
Upon receiving channel switch request, driver would parse channel
switch announcement IE from beacon_data.
If TX is blocked, netdev queues are stopped. IEs from csa_beacon
are then parsed and set to FW.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support for radar_detected event from FW.
Driver in turn would stop netdev queues to stop TX traffic and
issue RADAR_DETECT event to cfg80211.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support for channel report enabling.
Channel report event happens if radar is detected on specified channel
after driver has issued radar detect command within CAC time.
Driver in turn sends RADAR_DETECTED event to cfg80211 to tell radar was
detected within CAC time.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support for cfg80211 start_radar_detection handler.
Upon reception of start_radar_detection, driver prepares radar detect
command to FW.

Delayed work is queued for CAC time which sends radar detection finished
event to cfg80211.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Head & Tail IEs are supposed to be added to beacon and probe response.
This patch adds separate function for parsing head and tail IEs from
cfg80211_beacon_data and sets them to FW.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Refactor mwifiex_cfg80211_start_ap by creating separate function
to set AP channel and another for configuring other AP parameters
and starting AP.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Store AP configuration in private structure so that we know
current AP configuration.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NQingshui Gao <gaoqs@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Currently, we support virtual interface type change from
station<=>adhoc or station <=> p2p client/GO.
This patch adds support to change virtual interface type to
any of the type advertised in interface combinations.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Currently interface limits are checked by seeing if bss_mode for
particular priv is set. If bss_mode is not set, interface creation
is allowed. This patch adds framework to initializes maximum virtual
interfaces supported during load time and check current number of
interfaces created agains allowed interface limit during new virtual
interface creation.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

FW initialization routine can also be called while changing
virtual interface types.
This patch adds bool parameter "init" to init command routine
so as to differentiate between initialization during driver load
and change virtual interface handler.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This would be used to set mac address while changing virtual
interface to different types.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

wdev is used even after del_virtual_interface handler in cfg80211
in nl80211_post_doit. Since we have freed wdev in handling of
del_virtual_intf, this can result into crash while deleting
interface.
Avoid this be not declaring wdev which part of
mwifiex_private structure but struct wireless_dev type.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This is not used anywhere execpt initialization.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

If host fails to wakeup the firmware, we will trigger card reset
after 3 second timeout.
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This flag is never set but checked at two places. We will get rid of
this code.
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch saves sdio registers value before firmware dump,
this can be used to find out reason for FW dump.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support to dump driver information to a file
when firmware dump happens. This information can be used to
root casue FW crash.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch add a new debugfs item histogram used for reporting
rx data packet statitics(rx rate, snr, noise floor, signal strenth)
to userspace.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch add provision to show TDLS peer table in debugfs file.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch adds support to delete peer station's RA lists
upon station deautheticate event on AP interface. Patch also
decrements TX pending count upon removing packets from RA list.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

ACK status (0/1) for ACTION frames is informed to cfg80211. We
will extend existing logic used for EAPOL frames. The cfg80211
API is different here. Also, we need to explicitly free cloned
skb.
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Firmware notifies the driver through event if EAPOL data packet
has been acked or not. We will inform this status to userspace
listening on a socket.
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds auto TDLS support to mwifiex.

Auto TDLS functionality works as follows:
1. Whenever userspace application has triggered TDLS connection with
any peer, driver would store this peer mac address details in its database.
2. After this driver whenever driver receives packet on direct link,
it would store rssi and timestamp in peer information.
3. Whenever a packet is to be transmitted to non-AP peer in station mode,
driver would check if TDLS link can be established by looking at peer RSSI
information. Driver would initiate TDLS setup in such cases.
4. Periodic timer is used for updating peer information.
5. Auto TDLS peer list & timer are cleared during disconnection or driver unload.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds module load parameter driver_mode for mwifiex
which would enable driver to create AP or P2P client interface while loading
module. driver_mode is bitmap of interface modes for station, AP and
P2P client.

Station interface is created by default and is unaffected by driver_mode
parameter.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

On some platforms, system goes out of memory during heavy
Rx traffic with our USB chipsets.

In case of SDIO/PCIe, after receiving 50 packets in Rx queue
we stop processing interrupts till packets pending fall below
low threshold i.e 20. We don't have similar logic for USB,
so if host platform is slow, we would hit a case where firmware
keeps on pushing packets at high speed than driver/kernel can
process.

We will stop submitting URBs for Rx data when pending packet
count reaches high threshold and restart them when enough
packets are consumed to solve the problem.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=85071Reported-by: NMarek Belisko <marek.belisko@gmail.com>
Tested-by: NMarek Belisko <marek.belisko@gmail.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch removes redundant data complete handler.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds RX workqueue support for USB interfaces.
Currently rx_pending is applicable for cmd/events and Rx
data in USB interface. Let's use it only for Rx data.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds support to record channel statistics during
scan. With extended scan, scan results are returned as events from
FW while channel statistics are part of scan command response.
We store these channel statistics in adapter.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NXinmin Hu <huxm@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

During 11n RX reordering, if there is a hole in RX table,
driver will not send packets to kernel until the rxreorder
timer expires or the table is full.
However, currently driver always restarts rxreorder timer when
receiving a packet, which causes the timer hardly to expire.
So while connected with to 11n AP in a busy environment,
ping packets may get blocked for about 30 seconds.

This patch fixes this timer restarting by ensuring rxreorder timer
would only be restarted either timer is not set or start_win
has changed.
Signed-off-by: NChin-Ran Lo <crlo@marvell.com>
Signed-off-by: NPlus Chen <pchen@marvell.com>
Signed-off-by: NMarc Yang <yangyang@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

SKB lists have their own lock. So this lock is not needed.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We will now dump MAC, APU, CIU, ICU firmware memory segments also
for PCIe interface. Following is the updated userspace script which
reads firmware dump information.

    mwifiex_pcie_fw_dump.sh: #!/bin/bash
    ethtool --set-dump mlan0 0
    ethtool --get-dump mlan0
    ethtool --get-dump mlan0 data /tmp/ITCM.log

    ethtool --set-dump mlan0 1
    ethtool --get-dump mlan0
    ethtool --get-dump mlan0 data /tmp/DTCM.log

    ethtool --set-dump mlan0 2
    ethtool --get-dump mlan0
    ethtool --get-dump mlan0 data /tmp/SQRAM.log

    ethtool --set-dump mlan0 3
    ethtool --get-dump mlan0
    ethtool --get-dump mlan0 data /tmp/IRAM.log

    ethtool --set-dump mlan0 4
    ethtool --get-dump mlan0
    ethtool --get-dump mlan0 data /tmp/APU.log

    ethtool --set-dump mlan0 5
    ethtool --get-dump mlan0
    ethtool --get-dump mlan0 data /tmp/CIU.log

    ethtool --set-dump mlan0 6
    ethtool --get-dump mlan0
    ethtool --get-dump mlan0 data /tmp/ICU.log

    ethtool --set-dump mlan0 7
    ethtool --get-dump mlan0
    ethtool --get-dump mlan0 data /tmp/MAC.log
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds RX work queue support to mwifiex.
Packets received are queued to internal queue which are then
processed by scheduling a work item for RX process.

RX work is enabled only on SMP systems.
Reviewed-by: NJames Cameron <quozl@laptop.org>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NMarc Yang <yangyang@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We have a logic in driver to delay or abort low priority scan
to serve Tx traffic effectively. With scan channel
gap support added, firmware now allows driver to send Tx data while
scan operation is in progress. Hence low priority scan handling
in driver is not required now. This patch removes related code.
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NCathy Luo <cluo@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>