This will ensure that we send an other packet only when the first one is send.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
---
drivers/net/macb.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index ab0d1af..ea8ae82 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -120,6 +120,11 @@ static int macb_send(struct eth_device *edev, void *packet,
barrier();
writel(MACB_BIT(TE) | MACB_BIT(RE) | MACB_BIT(TSTART), macb->regs + MACB_NCR);
+ wait_on_timeout(100 * MSECOND,
+ !(macb->tx_ring[0].ctrl & TXBUF_USED));
+
+ ctrl = macb->tx_ring[0].ctrl;
+
if (ctrl & TXBUF_UNDERRUN)
printf("TX underrun\n");
if (ctrl & TXBUF_EXHAUSTED)
--
1.7.7
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