Commit Graph

1038 Commits

Author SHA1 Message Date
Arik Nemtsov
55df5afb13 wl12xx: implement SW Tx watchdog
Track freed FW blocks during Tx. If no blocks were freed during a
predefined timeout, initiate a HW recovery. This helps in situations
when the FW watchdog fails.

Don't trigger recovery during activities that can temporarily stop
Tx. This includes:
- scanning
- buffering packets for sleeping stations (AP role)
- ROC on any role

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-08 14:25:18 +02:00
Eliad Peller
8ccd16e6cb wl12xx: print the tx packet len
Add the packet length to the tx debug print.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:26 +02:00
Eliad Peller
e9ba7152c1 wl12xx: avoid bug_on_recovery during fw switch
Add a flag to indicate we initiated a recovery work
on purpose, in order to avoid triggering BUG() (when
the bug_on_recovery module param was set).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:26 +02:00
Eliad Peller
6667776d3c wl12xx: configure the correct beacon_interval
We didn't update the beacon interval on association
(or on a change notification when working as sta),
so the default interval (100ms) was always used.

Update the beacon interval according to the bss_conf
before starting the sta role (on association).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:26 +02:00
Eliad Peller
97fd311a26 wl12xx: don't allow scanning while device is in ROC
return EBUSY on scan when there is any role
in ROC (not necessarily the one we are going
to use)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:25 +02:00
Eliad Peller
121af04995 wl12xx: don't handle change_channel while associated
Currently, CHANGE_CHANNEL indication while
associated is considered as roaming attempt.

However, with the new auth/assoc redesign,
we no longer have to handle this case,
so remove it.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:25 +02:00
Eliad Peller
249e969889 wl12xx: set correct vif type in change_interface callback
In some cases, the wrong vif type was set in the
change_interface callback (P2P_CLIENT/P2P_GO instead
of STA/AP)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:25 +02:00
Eliad Peller
b32b2b0f8e wl12xx: increment session_counter for device role as well
The sesssion_counter has to be incremented each time
the dev is started (similar to sta role).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:24 +02:00
Eliad Peller
9fd6f21ba2 wl12xx: set authorized AP on sta_state notification
wl12xx currently looks for AP authorization by registering
a netdev notifier and waiting for the IF_OPER_UP notification,
which is quite cumbersome.

Use the newly introduced sta_state callback (waiting
for assoc -> auth notification) instead, in order to
simplify it.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:24 +02:00
Eliad Peller
2d6cf2b51f wl12xx: implement sta_state callback
Implement sta_state callback instead of the
sta_add/remove callbacks.

Update the fw regarding peer state and ht caps
only after the station was authorized. Otherwise,
the fw might try establishing BA session before
the sta is authorized.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:24 +02:00
Eliad Peller
8a6a84a471 wl12xx: consider bss_conf->idle instead of hw->conf.flags
On disassociation, check only whether the current vif
is idle, instead of checking whether the device is idle.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:24 +02:00
Eliad Peller
349345a4ec wl12xx: don't start dev role on ibss vifs
device role is used for scanning and sending packets
before connection. however, since we don't need to
send packets before ibss creation, there is no need
to start the device on idle-off.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-03-05 15:45:24 +02:00
Arik Nemtsov
d7b63b9fc7 wl12xx: increase dynamic PS timeout to 200ms
This ensures the user won't encounter lag associated with getting in and
out of PSM when the card is in use.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-28 13:25:11 +02:00
Arik Nemtsov
b9239b6658 wl12xx: flush Tx during suspend and 802.11h chan switch
Flush our Tx queues before suspending or changing the channel due to a
channel_switch element in the AP beacon.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-28 13:25:10 +02:00
Arik Nemtsov
18aa755b84 wl12xx: flush all Tx queues on tx_flush timeout
Ensure our queues are empty at the end of a tx_flush(), in case we
timeout on passively waiting for them. This makes sure no left-overs are
transmitted when we are on the wrong channel.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-28 13:25:09 +02:00
Arik Nemtsov
49c9cd2644 wl12xx: avoid starving the system hlid
Re-factor the Tx scheduler so that the system_hlid is taken into account
before restarting an iteration over the wlvifs. Previously this
hlid had a lower priority and would starve if some wlvif had many
packets.
In addition avoid iterating over wlvifs past last_wlvif when performing
the a second pass. If we had packets in those wlvifs they would have
been found earlier.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-28 13:25:09 +02:00
Arik Nemtsov
6246ca003f wl12xx: reset link Tx queues when freeing it
Before, the link was first freed (invalidating it in the map), and later
on vif removal, all valid wlvif-related links were reset. Since these
links were already invalid, we failed to reset them.
The bug was made worse by op_stop, which set the tx_queue_count to 0
arbitrarily. This resulted in a negative tx_queue_count in some scenarios.

Fix this by resetting the Tx-queues of a link when freeing it. Add a
WARN_ON and reset all link Tx-queues in op_stop, to avoid a negative
tx_queue_count.

[changed WARN_ON to WARN_ON_ONCE -- Luca]

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-28 13:24:45 +02:00
Arik Nemtsov
0b0e32b792 wl12xx: change bits in the link_map under spin lock
These bits are used in op_tx to determine if a packet should be dropped.
As such we should use the spin lock to sync the state.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-28 13:19:19 +02:00
Arik Nemtsov
5af70c864a wl12xx: set the ELP entry delay to the FW dyn-ps timeout
With PSM handled in FW, the checks in wl1271_elp_work() are always true.
Thus during active traffic we constantly enter and exit ELP (many times
per second). As each ELP exit takes ~10ms, this can have an adverse
effect on throughput and interactivity.
Set the ELP timeout to the dyn-ps timeout. This period is longer and
avoids the above problem. It also makes sense to stay out of ELP while
we are awake on the network, to minimize delays in Tx/Rx. The same thing
was done by the mac80211 dynamic-ps mechanism before the FW DPS changes.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-28 13:19:19 +02:00
Dan Carpenter
51c4ed95a8 wl12xx: remove some dead code in wl1271_plt_init()
"ret" has already been checked at this point, and we don't need to check
it again.  This was left around from a previous patch 49d750ca14
"wl12xx: 1281/1283 support - New radio structs and functions".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 12:25:26 +02:00
Eliad Peller
9b44350b49 wl12xx: delete wl->vif (and allow multiple vifs)
Delete the global wl->vif (and the checks on it),
so multiple vifs could be added.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:36 +02:00
Eliad Peller
3dee43930f wl12xx: enter forced-psm on fw change
Enter forced psm when changing fw, in order to make the
sta a bit more disconnection-persistent.
(DPM doesn't know about the incoming recovery, so it
won't enter psm by itself)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:36 +02:00
Eliad Peller
4549d09c57 wl12xx: dynamically change fw according to number of active roles
wl12xx uses different fw for single-role and multi-role
scenarios (due to lack of space, some of the fw advanced
features are disabled in the multi-role fw).

Add checks on add_interfae and remove_interface in order
to determine whether a fw switch is needed (and initiate
recovery in this case).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:36 +02:00
Eliad Peller
3fcdab7066 wl12xx: Use a dedicated fw for PLT
A special PLT firmware is used for calibration.

Add multiple fw support by introducing a new fw_type member,
representing the currently saved fw (the actual fw state
can be determined by wl->state).

Signed-off-by: Gery Kahn <geryk@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:35 +02:00
Eyal Shapira
f95f9aad15 wl12xx: add split_scan_timeout debugfs file
Add control over split_scan_timeout through
debugfs. Values are in ms while 0 will disable split scan.

Signed-off-by: Eyal Shapira <eyal@wizey.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:35 +02:00
Eyal Shapira
d647f2dd1a wl12xx: use split scan for normal scan
Split scan allows the FW to schedule other activities
during a scan which may be a long operation. This is
achieved by setting a trigger TID to ANY_TID and a scan
trigger timeout other than 0. The default one is set to 50ms.

Signed-off-by: Eyal Shapira <eyal@wizey.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:35 +02:00
Ido Reis
c08e371a68 wl12xx: increase max probe-req template size to WL1271_CMD_TEMPL_MAX_SIZE
Increase max scan IEs to allow big probe-req frames

Report a correct max-length for the scan IEs we can support, according
to the now larger size of the probe-req template.

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:35 +02:00
Eliad Peller
35d7742ff3 wl12xx: don't fail on AP scan
AP role uses its own role_id for scans, so there's
no reason to fail the scan if dev_role_id is invalid.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:35 +02:00
Eliad Peller
79aba1baf2 wl12xx: declare support for hw scan while idle
By allowing hw scan while idle, we no longer
need the redundant ROC/CROC that are done
on idle off/on, which helps simplifying the
state machine of the driver.

This way, we can also allow scanning while
there is an ongoing sched scan (otherwise,
we won't be able to ROC on idle-off)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:34 +02:00
Eliad Peller
76a74c8a65 wl12xx: configure arp filtering only after association
We have to configure arp filtering only after the role was
started, so move the BSS_CHANGED_ARP_FILTER handling after
the join.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:34 +02:00
Eliad Peller
b87f20c018 wl12xx: Revert "wl12xx: disable auto-arp"
This reverts commit e5e2f24b3e.

The encryption consideration on auto-arp configuration,
along with a fw fix, seem to resolve the crashes that
occured when auto-arp was enabled, so we can re-enable it now.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:34 +02:00
Eliad Peller
5ec8a448e0 wl12xx: consider encryption and QoS in auto arp template
When configuring the arp response template,
and encryption is enabled, we should add some
space and set the protected flag bit in the fc.

In order to track the encryption type, set
wlvif->encryption_type when setting an encryption key,
and reconfigure the arp response. Clear this field on
wl1271_join, as keys have to be re-configured
anyway after a join command.

Similarly, track whether QoS is configured.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:34 +02:00
Eyal Shapira
20ae7e5e4b wl12xx: add forced_ps debugfs file
Added control over forced_ps option through debugfs.
This can be either 1 or 0.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:34 +02:00
Eyal Shapira
5c0dc2fcfe wl12xx: add forced_ps mode
For certain WiFi certification tests forcing PS
is necessary. Since DPS is now enabled in the FW
and this can't be achieved by using netlatency
this required a new config option.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:33 +02:00
Eyal Shapira
59a10c66d0 wl12xx: add suspend_listen_interval debugfs file
Add read/write to suspend_dtim_interval file which
controls the number of DTIM periods between wakeups
while the host is suspended.
The value while the host is resumed is controlled
by the file dtim_interval which existed previously.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:33 +02:00
Eyal Shapira
dae728fe67 wl12xx: Set different wake up conditions in case of suspend
Added ability to set different wake up conditions for suspend/resume.
Set default values to wake up every 3 DTIMs while suspended
and every 1 DTIM while resumed

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:33 +02:00
Eliad Peller
26612c435b wl12xx: add new coex params
new params were added to the coex params.
Add them with default value of 0.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:33 +02:00
Eliad Peller
f4f57943f2 wl12xx: add TX_HW_ATTR_HOST_ENCRYPT flag
In WEP shared authentication, we encrypt the auth frame
in the host, and we want the fw to pass it as-is.
Use the TX_HW_ATTR_HOST_ENCRYPT flag in order to indicate
it to the fw.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:33 +02:00
Pontus Fuchs
defe02c720 wl12xx: Set IEEE80211_TX_RC_SHORT_GI if short GI was used on
New FW reports usage of short GI as a rate class index. Check for
this rate and set the IEEE80211_TX_RC_SHORT_GI if used.

Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:32 +02:00
Pontus Fuchs
d2e2d769e3 wl12xx: Set IEEE80211_TX_RC_MCS on MCS rates on TX complete.
IEEE80211_TX_RC_MCS was not set correctly leading to incorrect link
speed calculation.

Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:32 +02:00
Eyal Shapira
d18da7fcca wl12xx: change WLVIF_FLAG_PSM name and remove WLVIF_FLAG_PSM_REQUESTED
WLVIF_FLAG_PSM turned to WLVIF_FLAG_IN_AUTO_PS which
marks that this vif is in AUTO PS.

WLVIF_FLAG_PSM_REQUESTED is not required as mac80211
calls op_config with CONF_PS after association.

wl12xx_config_vif() handling of CONF_PS was simplified
and cleaned up.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:32 +02:00
Eyal Shapira
ed471d3402 wl12xx: enable/disable BET with AUTO_PS/ACTIVE
While the FW with dynamic PS controls BET when going to PSM and back
internally within the FW, there's still a need to enable it from the driver
at least once (so enable on every entry to AUTO_PS)
and disable it once we explicitly go back to STATION_ACTIVE_MODE.
BET isn't relevant for 5GHz

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:32 +02:00
Eyal Shapira
248a0018f3 wl12xx: remove 2 unused parameters in wl1271_ps_set_mode()
cleanup 2 unused parameters of wl1271_ps_set_mode

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:32 +02:00
Eyal Shapira
1faff895df wl12xx: add dynamic_ps_timeout debugfs file
Enable read/write of dynamic_ps_timeout which controls the timeout
of the dynamic PS implemented in the FW.
dynamic_ps_timeout is the timeout (in msec) until going back to PS
when there's no Rx/Tx

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:31 +02:00
Eyal Shapira
f1d63a5963 wl12xx: add support for HW dynamic PS
FW now supports dynamic PS so we don't need to use mac80211 support.
FW will go to PSM after a specified timeout with no Rx/Tx traffic.
- Changed FW API to include new PS mode (AUTO_MODE) and including timeout parameter
- The default PS mode would be dynamic PS
- Default timeout is 100ms (same as it used to be in mac80211)
- Avoid using mac80211 APIs to disable/enable dynamic PS as we're not
using mac80211 PS control anymore.
- COEX is handled by the FW while in dynamic PS so removed
handling of SOFT_GEMINI

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:31 +02:00
Eyal Shapira
d6bf9ada92 wl12xx: remove PS management code
Removal of PS management code from the driver as PS
is handled by the FW (dynamic PS)

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:31 +02:00
Eliad Peller
8332f0f6dc wl12xx: fw api change - update cmd/acx/event enums
Update enums/structs to the new fw api.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:31 +02:00
Eliad Peller
9c531149af wl12xx: fw api change - add role_id to tsf_info
The ACX_TSF_INFO command now takes role_id as param.
change the struct accordingly, and pass the wlvif
to the wl1271_acx_tsf_info() function.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:31 +02:00
Eliad Peller
c059beb2ad wl12xx: use dev_role_id for scans
Use device role for scans when the sta is not
associated.

sched_scan is used only when the sta is
not associated, and thus should use
the dev role (instead of sta role).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:30 +02:00
Eliad Peller
cdaac62811 wl12xx: fw api change - add role_id to set_template
The set_template commands now takes the role_id as
parameter.

Usually, we'll use the vif's main role_id.
However, sometimes we'll want to use
wlvif->dev_role_id instead of wlvif->role_id,
so pass the wanted role_id as param.

Update WL127X_FW_NAME/WL128X_FW_NAME.

(This commit starts a series of fw update patches,
and changes the start() callback to return an error
in order to prevent the use of the driver during the
transition. This change will be reverted in the
last patch of series)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-15 08:38:30 +02:00