The eth_can_rx() function only checks the first buffers status ("ping"). The controller should be able to receive into "pong" when ping-pong is enabled. Checks the active buffer (either "ping" or "pong") when determining can_rx() rather than just testing "ping".
Signed-off-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com> --- hw/xilinx_ethlite.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/xilinx_ethlite.c b/hw/xilinx_ethlite.c index 2254851..972b85e 100644 --- a/hw/xilinx_ethlite.c +++ b/hw/xilinx_ethlite.c @@ -163,9 +163,9 @@ static const MemoryRegionOps eth_ops = { static int eth_can_rx(NetClientState *nc) { struct xlx_ethlite *s = DO_UPCAST(NICState, nc, nc)->opaque; - int r; - r = !(s->regs[R_RX_CTRL0] & CTRL_S); - return r; + unsigned int rxbase = s->rxbuf * (0x800 / 4); + + return !(s->regs[rxbase + R_RX_CTRL0] & CTRL_S); } static ssize_t eth_rx(NetClientState *nc, const uint8_t *buf, size_t size) -- 1.7.12.1.396.g16eed7c