diff options
| author | Jussi Kivilinna <jussi.kivilinna@mbnet.fi> | 2011-01-31 20:49:52 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-02-04 16:29:51 -0500 |
| commit | a0fd751f0924e0eefa36592f1d358c4ab18b44c5 (patch) | |
| tree | 35505bb17a07f66dc18b0c456bd5086efe01918c /drivers/net/wireless/zd1211rw/zd_mac.c | |
| parent | 212e1a5b9df0a51d54d7841467f3f01baa1b82f1 (diff) | |
| download | linux-a0fd751f0924e0eefa36592f1d358c4ab18b44c5.tar.gz | |
zd1211rw: add TX watchdog and device resetting
When doing transfers at high speed for long time, tx queue can freeze. So add
tx watchdog. TX-watchdog checks for locked tx-urbs and reset hardware when
such is detected. Merely unlinking urb was not enough, device have to be
reseted. Hw settings are restored so that any open link will stay on after
reset.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_mac.c')
| -rw-r--r-- | drivers/net/wireless/zd1211rw/zd_mac.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index e82f0075ed9303..a590a94cb6fa73 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -264,7 +264,7 @@ static int set_mc_hash(struct zd_mac *mac) return zd_chip_set_multicast_hash(&mac->chip, &hash); } -static int zd_op_start(struct ieee80211_hw *hw) +int zd_op_start(struct ieee80211_hw *hw) { struct zd_mac *mac = zd_hw_mac(hw); struct zd_chip *chip = &mac->chip; @@ -314,7 +314,7 @@ out: return r; } -static void zd_op_stop(struct ieee80211_hw *hw) +void zd_op_stop(struct ieee80211_hw *hw) { struct zd_mac *mac = zd_hw_mac(hw); struct zd_chip *chip = &mac->chip; @@ -1409,6 +1409,9 @@ static void link_led_handler(struct work_struct *work) int is_associated; int r; + if (!test_bit(ZD_DEVICE_RUNNING, &mac->flags)) + goto requeue; + spin_lock_irq(&mac->lock); is_associated = mac->associated; spin_unlock_irq(&mac->lock); @@ -1418,6 +1421,7 @@ static void link_led_handler(struct work_struct *work) if (r) dev_dbg_f(zd_mac_dev(mac), "zd_chip_control_leds error %d\n", r); +requeue: queue_delayed_work(zd_workqueue, &mac->housekeeping.link_led_work, LINK_LED_WORK_DELAY); } |