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authorMichael Buesch <mb@bu3sch.de>2008-09-06 20:07:31 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-09-11 15:53:32 -0400
commit5a5f3b406a167cb5befa2110c6d9943898070aaf (patch)
tree6b3e5cb13ad6fe0ea1b3ec23b4b371bcb04ee846 /drivers
parentb338994dc2d0f8f1316ca12455fec3e5b0d44d3e (diff)
b43: Remove QoS update workqueue
We don't need the workqueue anymore, as we can now sleep in the callback. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/b43/b43.h7
-rw-r--r--drivers/net/wireless/b43/main.c65
2 files changed, 24 insertions, 48 deletions
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index f9c8161671d..07d2825458a 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -585,8 +585,6 @@ enum {
struct b43_qos_params {
/* The QOS parameters */
struct ieee80211_tx_queue_params p;
- /* Does this need to get uploaded to hardware? */
- bool need_hw_update;
};
struct b43_wldev;
@@ -648,11 +646,8 @@ struct b43_wl {
bool beacon_templates_virgin; /* Never wrote the templates? */
struct work_struct beacon_update_trigger;
- /* The current QOS parameters for the 4 queues.
- * This is protected by the irq_lock. */
+ /* The current QOS parameters for the 4 queues. */
struct b43_qos_params qos_params[4];
- /* Workqueue for updating QOS parameters in hardware. */
- struct work_struct qos_update_work;
/* Work for adjustment of the transmission power.
* This is scheduled when we determine that the actual TX output
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 79c25d6385c..d4a356b1163 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3068,30 +3068,22 @@ static const u16 b43_qos_shm_offsets[] = {
[3] = B43_QOS_BACKGROUND,
};
-/* Update the QOS parameters in hardware. */
-static void b43_qos_update(struct b43_wldev *dev)
+/* Update all QOS parameters in hardware. */
+static void b43_qos_upload_all(struct b43_wldev *dev)
{
struct b43_wl *wl = dev->wl;
struct b43_qos_params *params;
- unsigned long flags;
unsigned int i;
BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
ARRAY_SIZE(wl->qos_params));
b43_mac_suspend(dev);
- spin_lock_irqsave(&wl->irq_lock, flags);
-
for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
params = &(wl->qos_params[i]);
- if (params->need_hw_update) {
- b43_qos_params_upload(dev, &(params->p),
- b43_qos_shm_offsets[i]);
- params->need_hw_update = 0;
- }
+ b43_qos_params_upload(dev, &(params->p),
+ b43_qos_shm_offsets[i]);
}
-
- spin_unlock_irqrestore(&wl->irq_lock, flags);
b43_mac_enable(dev);
}
@@ -3136,20 +3128,14 @@ static void b43_qos_clear(struct b43_wl *wl)
default:
B43_WARN_ON(1);
}
- params->need_hw_update = 1;
}
}
/* Initialize the core's QOS capabilities */
static void b43_qos_init(struct b43_wldev *dev)
{
- struct b43_wl *wl = dev->wl;
- unsigned int i;
-
/* Upload the current QOS parameters. */
- for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++)
- wl->qos_params[i].need_hw_update = 1;
- b43_qos_update(dev);
+ b43_qos_upload_all(dev);
/* Enable QOS support. */
b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
@@ -3158,25 +3144,13 @@ static void b43_qos_init(struct b43_wldev *dev)
| B43_MMIO_IFSCTL_USE_EDCF);
}
-static void b43_qos_update_work(struct work_struct *work)
-{
- struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work);
- struct b43_wldev *dev;
-
- mutex_lock(&wl->mutex);
- dev = wl->current_dev;
- if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED)))
- b43_qos_update(dev);
- mutex_unlock(&wl->mutex);
-}
-
static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
const struct ieee80211_tx_queue_params *params)
{
struct b43_wl *wl = hw_to_b43_wl(hw);
- unsigned long flags;
+ struct b43_wldev *dev;
unsigned int queue = (unsigned int)_queue;
- struct b43_qos_params *p;
+ int err = -ENODEV;
if (queue >= ARRAY_SIZE(wl->qos_params)) {
/* Queue not available or don't support setting
@@ -3184,16 +3158,25 @@ static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
* confuse mac80211. */
return 0;
}
+ BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
+ ARRAY_SIZE(wl->qos_params));
- spin_lock_irqsave(&wl->irq_lock, flags);
- p = &(wl->qos_params[queue]);
- memcpy(&(p->p), params, sizeof(p->p));
- p->need_hw_update = 1;
- spin_unlock_irqrestore(&wl->irq_lock, flags);
+ mutex_lock(&wl->mutex);
+ dev = wl->current_dev;
+ if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED)))
+ goto out_unlock;
- queue_work(hw->workqueue, &wl->qos_update_work);
+ memcpy(&(wl->qos_params[queue].p), params, sizeof(*params));
+ b43_mac_suspend(dev);
+ b43_qos_params_upload(dev, &(wl->qos_params[queue].p),
+ b43_qos_shm_offsets[queue]);
+ b43_mac_enable(dev);
+ err = 0;
- return 0;
+out_unlock:
+ mutex_unlock(&wl->mutex);
+
+ return err;
}
static int b43_op_get_tx_stats(struct ieee80211_hw *hw,
@@ -4220,7 +4203,6 @@ static void b43_op_stop(struct ieee80211_hw *hw)
struct b43_wldev *dev = wl->current_dev;
b43_rfkill_exit(dev);
- cancel_work_sync(&(wl->qos_update_work));
cancel_work_sync(&(wl->beacon_update_trigger));
mutex_lock(&wl->mutex);
@@ -4619,7 +4601,6 @@ static int b43_wireless_init(struct ssb_device *dev)
spin_lock_init(&wl->shm_lock);
mutex_init(&wl->mutex);
INIT_LIST_HEAD(&wl->devlist);
- INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work);