1 From 1473b4cce85760c0202a08e6a48ec51867dc1bf7 Mon Sep 17 00:00:00 2001
2 From: John Crispin <john@phrozen.org>
3 Date: Tue, 3 May 2016 04:01:38 +0200
4 Subject: [PATCH 091/102] net-next: mediatek: only wake the queue if it is
7 The current code unconditionally wakes up the queue at the end of each
8 tx_poll action. Change the code to only wake up the queues if any of
9 them have actually been stopped before.
11 Signed-off-by: John Crispin <john@phrozen.org>
13 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 17 ++++++++++++++++-
14 1 file changed, 16 insertions(+), 1 deletion(-)
16 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
17 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
18 @@ -716,6 +716,20 @@ static inline int mtk_cal_txd_req(struct
22 +static int mtk_queue_stopped(struct mtk_eth *eth)
26 + for (i = 0; i < MTK_MAC_COUNT; i++) {
27 + if (!eth->netdev[i])
29 + if (netif_queue_stopped(eth->netdev[i]))
36 static void mtk_wake_queue(struct mtk_eth *eth)
39 @@ -960,7 +974,8 @@ static int mtk_poll_tx(struct mtk_eth *e
43 - if (atomic_read(&ring->free_count) > ring->thresh)
44 + if (mtk_queue_stopped(eth) &&
45 + (atomic_read(&ring->free_count) > ring->thresh))