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| author | Arik Nemtsov <arik@wizery.com> | 2012-03-03 22:18:00 +0200 |
|---|---|---|
| committer | Luciano Coelho <coelho@ti.com> | 2012-03-08 14:25:18 +0200 |
| commit | 55df5afb13718cda49128fa5985556df91d07765 (patch) | |
| tree | bb6c9279e12b90af623ba6ea4b17ea85f679e251 /drivers/net/wireless/wl12xx/cmd.c | |
| parent | 8ccd16e6cb17a1e961617cc67798bbb222e4cd13 (diff) | |
| download | linux-3.10-55df5afb13718cda49128fa5985556df91d07765.tar.gz linux-3.10-55df5afb13718cda49128fa5985556df91d07765.tar.bz2 linux-3.10-55df5afb13718cda49128fa5985556df91d07765.zip | |
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>
Diffstat (limited to 'drivers/net/wireless/wl12xx/cmd.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/cmd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c index 1ef212f6440..3414fc11e9b 100644 --- a/drivers/net/wireless/wl12xx/cmd.c +++ b/drivers/net/wireless/wl12xx/cmd.c @@ -1818,6 +1818,14 @@ int wl12xx_croc(struct wl1271 *wl, u8 role_id) goto out; __clear_bit(role_id, wl->roc_map); + + /* + * Rearm the tx watchdog when removing the last ROC. This prevents + * recoveries due to just finished ROCs - when Tx hasn't yet had + * a chance to get out. + */ + if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) + wl12xx_rearm_tx_watchdog_locked(wl); out: return ret; } |