diff options
| -rw-r--r-- | hw/net/opencores_eth.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/hw/net/opencores_eth.c b/hw/net/opencores_eth.c index 4118d54ac8..4a443049dd 100644 --- a/hw/net/opencores_eth.c +++ b/hw/net/opencores_eth.c @@ -169,6 +169,7 @@ enum { }; enum { + INT_SOURCE_BUSY = 0x10, INT_SOURCE_RXB = 0x4, INT_SOURCE_TXB = 0x1, }; @@ -351,8 +352,7 @@ static int open_eth_can_receive(NetClientState *nc) OpenEthState *s = qemu_get_nic_opaque(nc); return GET_REGBIT(s, MODER, RXEN) && - (s->regs[TX_BD_NUM] < 0x80) && - (rx_desc(s)->len_flags & RXD_E); + (s->regs[TX_BD_NUM] < 0x80); } static ssize_t open_eth_receive(NetClientState *nc, @@ -402,6 +402,12 @@ static ssize_t open_eth_receive(NetClientState *nc, desc *desc = rx_desc(s); size_t copy_size = GET_REGBIT(s, MODER, HUGEN) ? 65536 : maxfl; + if (!(desc->len_flags & RXD_E)) { + open_eth_int_source_write(s, + s->regs[INT_SOURCE] | INT_SOURCE_BUSY); + return size; + } + desc->len_flags &= ~(RXD_CF | RXD_M | RXD_OR | RXD_IS | RXD_DN | RXD_TL | RXD_SF | RXD_CRC | RXD_LC); @@ -551,6 +557,15 @@ static uint64_t open_eth_reg_read(void *opaque, return v; } +static void open_eth_notify_can_receive(OpenEthState *s) +{ + NetClientState *nc = qemu_get_queue(s->nic); + + if (open_eth_can_receive(nc)) { + qemu_flush_queued_packets(nc); + } +} + static void open_eth_ro(OpenEthState *s, uint32_t val) { } @@ -567,6 +582,7 @@ static void open_eth_moder_host_write(OpenEthState *s, uint32_t val) if (set & MODER_RXEN) { s->rx_desc = s->regs[TX_BD_NUM]; + open_eth_notify_can_receive(s); } if (set & MODER_TXEN) { s->tx_desc = 0; @@ -592,6 +608,18 @@ static void open_eth_int_mask_host_write(OpenEthState *s, uint32_t val) s->regs[INT_SOURCE] & s->regs[INT_MASK]); } +static void open_eth_tx_bd_num_host_write(OpenEthState *s, uint32_t val) +{ + if (val < 0x80) { + bool enable = s->regs[TX_BD_NUM] == 0x80; + + s->regs[TX_BD_NUM] = val; + if (enable) { + open_eth_notify_can_receive(s); + } + } +} + static void open_eth_mii_command_host_write(OpenEthState *s, uint32_t val) { unsigned fiad = GET_REGFIELD(s, MIIADDRESS, FIAD); @@ -630,6 +658,7 @@ static void open_eth_reg_write(void *opaque, [MODER] = open_eth_moder_host_write, [INT_SOURCE] = open_eth_int_source_host_write, [INT_MASK] = open_eth_int_mask_host_write, + [TX_BD_NUM] = open_eth_tx_bd_num_host_write, [MIICOMMAND] = open_eth_mii_command_host_write, [MIITX_DATA] = open_eth_mii_tx_host_write, [MIISTATUS] = open_eth_ro, |