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dma: optimize icache footprint of rx path, batch frames before passing them to mac80211

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Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2016-02-08 17:35:40 +01:00
parent 9e305ef093
commit 2bd92acfa2
3 changed files with 13 additions and 1 deletions
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dma.c
+2
View File
@@ -358,6 +358,7 @@ mt76_dma_rx_poll(struct napi_struct *napi, int budget)
napi_complete(napi);
dev->drv->rx_poll_complete(dev, qid);
}
mt76_rx_complete(dev, qid);
return done;
}
@@ -372,6 +373,7 @@ mt76_dma_init(struct mt76_dev *dev)
for (i = 0; i < ARRAY_SIZE(dev->q_rx); i++) {
netif_napi_add(&dev->napi_dev, &dev->napi[i], mt76_dma_rx_poll, 64);
mt76_dma_rx_fill(dev, &dev->q_rx[i], false);
skb_queue_head_init(&dev->rx_skb[i]);
napi_enable(&dev->napi[i]);
}
mac80211.c
+9 -1
View File
@@ -231,6 +231,14 @@ void mt76_rx(struct mt76_dev *dev, enum mt76_rxq_id q, struct sk_buff *skb)
return;
}
ieee80211_rx_napi(dev->hw, skb, &dev->napi[q]);
__skb_queue_tail(&dev->rx_skb[q], skb);
}
EXPORT_SYMBOL_GPL(mt76_rx);
void mt76_rx_complete(struct mt76_dev *dev, enum mt76_rxq_id q)
{
struct sk_buff *skb;
while ((skb = __skb_dequeue(&dev->rx_skb[q])) != NULL)
ieee80211_rx_napi(dev->hw, skb, &dev->napi[q]);
}
mt76.h
+2
View File
@@ -177,6 +177,7 @@ struct mt76_dev {
struct net_device napi_dev;
struct napi_struct napi[__MT_RXQ_MAX];
struct sk_buff_head rx_skb[__MT_RXQ_MAX];
struct list_head txwi_cache;
struct mt76_queue q_tx[__MT_TXQ_MAX];
@@ -282,5 +283,6 @@ void mt76_release_buffered_frames(struct ieee80211_hw *hw,
/* internal */
void mt76_tx_free(struct mt76_dev *dev);
void mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t);
void mt76_rx_complete(struct mt76_dev *dev, enum mt76_rxq_id q);
#endif