From eccbe858ce6412b96fc7cb32eb23a3592f64e5f6 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 8 Mar 2016 21:17:20 -0300 Subject: Linux-libre 4.4.4-gnu --- drivers/net/phy/dp83640.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/net/phy') diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c index 47b711739..e6cefd0e3 100644 --- a/drivers/net/phy/dp83640.c +++ b/drivers/net/phy/dp83640.c @@ -845,6 +845,11 @@ static void decode_rxts(struct dp83640_private *dp83640, struct skb_shared_hwtstamps *shhwtstamps = NULL; struct sk_buff *skb; unsigned long flags; + u8 overflow; + + overflow = (phy_rxts->ns_hi >> 14) & 0x3; + if (overflow) + pr_debug("rx timestamp queue overflow, count %d\n", overflow); spin_lock_irqsave(&dp83640->rx_lock, flags); @@ -887,6 +892,7 @@ static void decode_txts(struct dp83640_private *dp83640, struct skb_shared_hwtstamps shhwtstamps; struct sk_buff *skb; u64 ns; + u8 overflow; /* We must already have the skb that triggered this. */ @@ -896,6 +902,17 @@ static void decode_txts(struct dp83640_private *dp83640, pr_debug("have timestamp but tx_queue empty\n"); return; } + + overflow = (phy_txts->ns_hi >> 14) & 0x3; + if (overflow) { + pr_debug("tx timestamp queue overflow, count %d\n", overflow); + while (skb) { + skb_complete_tx_timestamp(skb, NULL); + skb = skb_dequeue(&dp83640->tx_queue); + } + return; + } + ns = phy2txts(phy_txts); memset(&shhwtstamps, 0, sizeof(shhwtstamps)); shhwtstamps.hwtstamp = ns_to_ktime(ns); -- cgit v1.2.3-54-g00ecf