From 6338488356d2891869c9e143381f3bb71cfa2e30 Mon Sep 17 00:00:00 2001 From: Jose Abreu Date: Wed, 4 Sep 2019 15:16:54 +0200 Subject: [PATCH] net: stmmac: xgmac: Add RBU handling in DMA interrupt Add the handling of Receive Buffer Unavailable interrupt in the DMA handler of XGMAC cores. Signed-off-by: Jose Abreu Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c index 64956465c030..e77eb0ddf9b5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c @@ -322,6 +322,10 @@ static int dwxgmac2_dma_interrupt(void __iomem *ioaddr, /* ABNORMAL interrupts */ if (unlikely(intr_status & XGMAC_AIS)) { + if (unlikely(intr_status & XGMAC_RBU)) { + x->rx_buf_unav_irq++; + ret |= handle_rx; + } if (unlikely(intr_status & XGMAC_TPS)) { x->tx_process_stopped_irq++; ret |= tx_hard_error; -- 2.30.2