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authorJose Abreu <Jose.Abreu@synopsys.com>2019-09-04 16:16:54 +0300
committerDavid S. Miller <davem@davemloft.net>2019-09-05 13:19:54 +0300
commit6338488356d2891869c9e143381f3bb71cfa2e30 (patch)
tree7baa4ea088c126cea964a07609b2f3635cf65461
parent9513321069ee56da561a6b1c8f3b5ec07e3c87a5 (diff)
downloadlinux-6338488356d2891869c9e143381f3bb71cfa2e30.tar.xz
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 <joabreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c4
1 files changed, 4 insertions, 0 deletions
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;