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b43: Remove QoS update workqueue

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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>
This commit is contained in:
Michael Buesch 2008-09-06 20:07:31 +02:00 committed by John W. Linville
parent b338994dc2
commit 5a5f3b406a
2 changed files with 24 additions and 48 deletions
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7
drivers/net/wireless/b43/b43.h
View file

@ -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

65
drivers/net/wireless/b43/main.c
View file

@ -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);