The card is not able to exit from exhaustion state, because
while the drive consumes the buffers, the RRP is incremented
(when the driver clears the ISR RBE bit), so it stays equal
to RWP, and while RRP == RWP, the card thinks it is always
in exhaustion state. So the driver consumes all the buffers,
but the card cannot receive new ones.
This patch fixes the problem by not incrementing RRP when
the driver clears the ISR RBE bit.
Signed-off-by: Laurent Vivier <address@hidden>
---
hw/net/dp8393x.c | 31 ++++++++++++++++---------------
1 file changed, 16 insertions(+), 15 deletions(-)