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-rw-r--r--hw/net/cadence_gem.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c
index f2c734ef2b..f6e38cacfc 100644
--- a/hw/net/cadence_gem.c
+++ b/hw/net/cadence_gem.c
@@ -380,6 +380,8 @@ typedef struct GemState {
uint32_t rx_desc_addr;
uint32_t tx_desc_addr;
+ uint8_t can_rx_state; /* Debug only */
+
unsigned rx_desc[2];
bool sar_active[4];
@@ -452,13 +454,19 @@ static int gem_can_receive(NetClientState *nc)
s = qemu_get_nic_opaque(nc);
- DB_PRINT("\n");
-
/* Do nothing if receive is not enabled. */
if (!(s->regs[GEM_NWCTRL] & GEM_NWCTRL_RXENA)) {
+ if (s->can_rx_state != 1) {
+ s->can_rx_state = 1;
+ DB_PRINT("can't receive - no enable\n");
+ }
return 0;
}
+ if (s->can_rx_state != 0) {
+ s->can_rx_state = 0;
+ DB_PRINT("can receive 0x%x\n", s->rx_desc_addr);
+ }
return 1;
}