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xilinx_ethlite: fix eth_can_rx() for ping-pong 

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.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Peter Crosthwaite 2013-01-26 12:36:22 -08:00 committed by Edgar E. Iglesias
parent 13144781d4
commit 808fb9f277
1 changed files with 3 additions and 3 deletions
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6
hw/xilinx_ethlite.c
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@ -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)