diff options
| -rw-r--r-- | hw/net/cadence_gem.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c index f6e38cacfc..92dc2f21fa 100644 --- a/hw/net/cadence_gem.c +++ b/hw/net/cadence_gem.c @@ -463,6 +463,15 @@ static int gem_can_receive(NetClientState *nc) return 0; } + if (rx_desc_get_ownership(s->rx_desc) == 1) { + if (s->can_rx_state != 2) { + s->can_rx_state = 2; + DB_PRINT("can't receive - busy buffer descriptor 0x%x\n", + s->rx_desc_addr); + } + return 0; + } + if (s->can_rx_state != 0) { s->can_rx_state = 0; DB_PRINT("can receive 0x%x\n", s->rx_desc_addr); @@ -1142,7 +1151,7 @@ static void gem_write(void *opaque, hwaddr offset, uint64_t val, /* Reset to start of Q when transmit disabled. */ s->tx_desc_addr = s->regs[GEM_TXQBASE]; } - if (val & GEM_NWCTRL_RXENA) { + if (gem_can_receive(qemu_get_queue(s->nic))) { qemu_flush_queued_packets(qemu_get_queue(s->nic)); } break; |