From a976ca79e23f13bff79c14e7266cea4a0ea51e67 Mon Sep 17 00:00:00 2001 From: Jose Abreu Date: Fri, 24 May 2019 10:20:26 +0200 Subject: net: stmmac: Prevent missing interrupts when running NAPI When we trigger NAPI we are disabling interrupts but in case we receive or send a packet in the meantime, as interrupts are disabled, we will miss this event. Trigger both NAPI instances (RX and TX) when at least one event happens so that we don't miss any interrupts. Signed-off-by: Jose Abreu Cc: Joao Pinto Cc: David S. Miller Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net/ethernet/stmicro') diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index ce77a9a2eb56..a87ec70b19f1 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2058,6 +2058,9 @@ static int stmmac_napi_check(struct stmmac_priv *priv, u32 chan) &priv->xstats, chan); struct stmmac_channel *ch = &priv->channel[chan]; + if (status) + status |= handle_rx | handle_tx; + if ((status & handle_rx) && (chan < priv->plat->rx_queues_to_use)) { stmmac_disable_dma_irq(priv, priv->ioaddr, chan); napi_schedule_irqoff(&ch->rx_napi); -- cgit v1.2.3-55-g7522