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net: stmmac: xgmac: Add RBU handling in DMA interrupt

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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>
This commit is contained in:
Jose Abreu 2019-09-04 15:16:54 +02:00 • committed by David S. Miller
commit 6338488356
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
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@ -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;