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