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Commit ad3cba98 authored by John Crispin's avatar John Crispin Committed by David S. Miller
Browse files

net: mediatek: only wake the queue if it is stopped 



The current code unconditionally wakes up the queue at the end of each
tx_poll action. Change the code to only wake up the queues if any of
them have actually been stopped before.

Signed-off-by: default avatarJohn Crispin <john@phrozen.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 12c97c13

drivers/net/ethernet/mediatek/mtk_eth_soc.c

+16 −1
Original line number Diff line number Diff line
@@ -704,6 +704,20 @@ static inline int mtk_cal_txd_req(struct sk_buff *skb) 
	return nfrags;

}



static int mtk_queue_stopped(struct mtk_eth *eth)

{

	int i;



	for (i = 0; i < MTK_MAC_COUNT; i++) {

		if (!eth->netdev[i])

			continue;

		if (netif_queue_stopped(eth->netdev[i]))

			return 1;

	}



	return 0;

}



static void mtk_wake_queue(struct mtk_eth *eth)

{

	int i;
@@ -950,7 +964,8 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget, bool *tx_again) 
	if (!total)

		return 0;



	if (atomic_read(&ring->free_count) > ring->thresh)

	if (mtk_queue_stopped(eth) &&

	    (atomic_read(&ring->free_count) > ring->thresh))

		mtk_wake_queue(eth);



	return total;