Add the handling of Receive Buffer Unavailable interrupt in the DMA handler of XGMAC cores.
Signed-off-by: Jose Abreu <[email protected]> --- Cc: Giuseppe Cavallaro <[email protected]> Cc: Alexandre Torgue <[email protected]> Cc: Jose Abreu <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Maxime Coquelin <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] --- 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; -- 2.7.4
