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net: stmmac: Update RX Tail Pointer to last free entry

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Update the RX Tail Pointer to the last available SKB entry.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-06-28 09:29:19 +02:00 committed by David S. Miller
parent a993db88d1
commit 858a31ffc3
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@ -3347,6 +3347,8 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv, u32 queue)
entry = STMMAC_GET_ENTRY(entry, DMA_RX_SIZE);
}
rx_q->dirty_rx = entry;
rx_q->rx_tail_addr = rx_q->dma_rx_phy +
(rx_q->dirty_rx * sizeof(struct dma_desc));
stmmac_set_rx_tail_ptr(priv, priv->ioaddr, rx_q->rx_tail_addr, queue);
}