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[Qemu-devel] [PATCH v3 1/2] rtl8139: Do not consume the packet during ov

From: Vladislav Yasevich
Subject: [Qemu-devel] [PATCH v3 1/2] rtl8139: Do not consume the packet during overflow in standard mode.
Date: Fri, 28 Aug 2015 10:06:56 -0400

When operation in standard mode, we currently return the size
of packet during buffer overflow.  This consumes the overflow
packet.  Return 0 instead so we can re-process the overflow packet
when we have room.

This fixes issues with lost/dropped fragments of large messages.

Signed-off-by: Vladislav Yasevich <address@hidden>
 hw/net/rtl8139.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
index edbb61c..359e001 100644
--- a/hw/net/rtl8139.c
+++ b/hw/net/rtl8139.c
@@ -1157,7 +1157,7 @@ static ssize_t rtl8139_do_receive(NetClientState *nc, 
const uint8_t *buf, size_t
             s->IntrStatus |= RxOverflow;
-            return size_;
+            return 0;
         packet_header |= RxStatusOK;

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