gitops/mt76
1
0
Fork 0
mirror of https://github.com/outbackdingo/mt76.git synced 2026-10-24 13:26:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

move txwi cache to core

Browse Source 
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2015-12-17 15:50:01 +01:00
parent 85d62175b5
commit 1389db799a
10 changed files with 162 additions and 118 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tx.c
+98
View File
@@ -13,6 +13,71 @@
#include "mt76.h"
static struct mt76_txwi_cache *
mt76_alloc_txwi(struct mt76_dev *dev)
{
struct mt76_txwi_cache *t;
dma_addr_t addr;
int size;
size = (sizeof(*t) + L1_CACHE_BYTES - 1) & ~(L1_CACHE_BYTES - 1);
t = devm_kzalloc(dev->dev, size, GFP_ATOMIC);
if (!t)
return NULL;
addr = dma_map_single(dev->dev, &t->txwi, sizeof(t->txwi), DMA_TO_DEVICE);
t->dma_addr = addr;
return t;
}
static struct mt76_txwi_cache *
__mt76_get_txwi(struct mt76_dev *dev)
{
struct mt76_txwi_cache *t = NULL;
spin_lock_bh(&dev->lock);
if (!list_empty(&dev->txwi_cache)) {
t = list_first_entry(&dev->txwi_cache, struct mt76_txwi_cache,
list);
list_del(&t->list);
}
spin_unlock_bh(&dev->lock);
return t;
}
static struct mt76_txwi_cache *
mt76_get_txwi(struct mt76_dev *dev)
{
struct mt76_txwi_cache *t = __mt76_get_txwi(dev);
if (t)
return t;
return mt76_alloc_txwi(dev);
}
void
mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t)
{
if (!t)
return;
spin_lock_bh(&dev->lock);
list_add(&t->list, &dev->txwi_cache);
spin_unlock_bh(&dev->lock);
}
void mt76_tx_free(struct mt76_dev *dev)
{
struct mt76_txwi_cache *t;
while ((t = __mt76_get_txwi(dev)) != NULL)
dma_unmap_single(dev->dev, t->dma_addr, sizeof(t->txwi),
DMA_TO_DEVICE);
}
static int
mt76_txq_get_qid(struct ieee80211_txq *txq)
{
@@ -22,6 +87,39 @@ mt76_txq_get_qid(struct ieee80211_txq *txq)
return txq->ac;
}
int mt76_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q,
struct sk_buff *skb, struct mt76_wcid *wcid,
struct ieee80211_sta *sta)
{
struct mt76_txwi_cache *t;
int ret = -ENOMEM;
t = mt76_get_txwi(dev);
if (!t)
goto free;
dma_sync_single_for_cpu(dev->dev, t->dma_addr, sizeof(t->txwi),
DMA_TO_DEVICE);
ret = dev->drv->fill_txwi(dev, &t->txwi, skb, wcid, sta);
dma_sync_single_for_device(dev->dev, t->dma_addr, sizeof(t->txwi),
DMA_TO_DEVICE);
if (ret < 0)
goto free_txwi;
ret = dev->drv->tx_queue_skb(dev, q, skb, t, wcid, sta);
if (ret < 0)
goto free_txwi;
return ret;
free_txwi:
mt76_put_txwi(dev, t);
free:
ieee80211_free_txskb(dev->hw, skb);
return ret;
}
EXPORT_SYMBOL_GPL(mt76_tx_queue_skb);
void
mt76_tx(struct mt76_dev *dev, struct ieee80211_sta *sta,
struct mt76_wcid *wcid, struct sk_buff *skb)