diff options
Diffstat (limited to 'hw/eepro100.c')
| -rw-r--r-- | hw/eepro100.c | 46 |
1 files changed, 35 insertions, 11 deletions
diff --git a/hw/eepro100.c b/hw/eepro100.c index d446e71c60..fa129e6e47 100644 --- a/hw/eepro100.c +++ b/hw/eepro100.c @@ -73,7 +73,7 @@ #define TRACE(flag, command) ((flag) ? (command) : (void)0) -#define missing(text) assert(!"feature is missing in this emulation: " text) +#define missing(text) fprintf(stderr, "eepro100: feature is missing in this emulation: " text "\n") #define MAX_ETH_FRAME_SIZE 1514 @@ -672,6 +672,7 @@ static void eepro100_cu_command(EEPRO100State * s, uint8_t val) bool bit_s = ((command & 0x4000) != 0); bool bit_i = ((command & 0x2000) != 0); bool bit_nc = ((command & 0x0010) != 0); + bool success = true; //~ bool bit_sf = ((command & 0x0008) != 0); uint16_t cmd = command & 0x0007; s->cu_offset = le32_to_cpu(tx.link); @@ -698,9 +699,17 @@ static void eepro100_cu_command(EEPRO100State * s, uint8_t val) TRACE(RXTX, logout ("transmit, TBD array address 0x%08x, TCB byte count 0x%04x, TBD count %u\n", tbd_array, tcb_bytes, tx.tbd_count)); - assert(!bit_nc); + + if (bit_nc) { + missing("CmdTx: NC = 0"); + success = false; + break; + } //~ assert(!bit_sf); - assert(tcb_bytes <= 2600); + if (tcb_bytes > 2600) { + logout("TCB byte count too large, using 2600\n"); + tcb_bytes = 2600; + } /* Next assertion fails for local configuration. */ //~ assert((tcb_bytes > 0) || (tbd_array != 0xffffffff)); if (!((tcb_bytes > 0) || (tbd_array != 0xffffffff))) { @@ -732,7 +741,6 @@ static void eepro100_cu_command(EEPRO100State * s, uint8_t val) uint8_t tbd_count = 0; if (device_supports_eTxCB(s) && !(s->configuration[6] & BIT(4))) { /* Extended Flexible TCB. */ - assert(tcb_bytes == 0); for (; tbd_count < 2; tbd_count++) { uint32_t tx_buffer_address = ldl_phys(tbd_address); uint16_t tx_buffer_size = lduw_phys(tbd_address + 4); @@ -782,9 +790,11 @@ static void eepro100_cu_command(EEPRO100State * s, uint8_t val) break; default: missing("undefined command"); + success = false; + break; } - /* Write new status (success). */ - stw_phys(cb_address, status | 0x8000 | 0x2000); + /* Write new status. */ + stw_phys(cb_address, status | 0x8000 | (success ? 0x2000 : 0)); if (bit_i) { /* CU completed action. */ eepro100_cx_interrupt(s); @@ -1492,7 +1502,10 @@ static ssize_t nic_receive(VLANClientState *vc, const uint8_t * buf, size_t size { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; /* TODO: check multiple IA bit. */ - assert(!(s->configuration[20] & BIT(6))); + if (s->configuration[20] & BIT(6)) { + missing("Multiple IA bit"); + return -1; + } if (s->configuration[8] & 0x80) { /* CSMA is disabled. */ @@ -1521,7 +1534,9 @@ static ssize_t nic_receive(VLANClientState *vc, const uint8_t * buf, size_t size /* Multicast frame. */ TRACE(RXTX, logout("%p received multicast, len=%zu\n", s, size)); /* TODO: check multicast all bit. */ - assert(!(s->configuration[21] & BIT(3))); + if (s->configuration[21] & BIT(3)) { + missing("Multicast All bit"); + } int mcast_idx = compute_mcast_idx(buf); if (!(s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7)))) { return size; @@ -1551,7 +1566,12 @@ static ssize_t nic_receive(VLANClientState *vc, const uint8_t * buf, size_t size offsetof(eepro100_rx_t, packet)); uint16_t rfd_command = le16_to_cpu(rx.command); uint16_t rfd_size = le16_to_cpu(rx.size); - assert(size <= rfd_size); + + if (size > rfd_size) { + logout("Receive buffer (%" PRId16 " bytes) too small for data " + "(%zu bytes); data truncated\n", rfd_size, size); + size = rfd_size; + } if (size < 64) { rfd_status |= 0x0080; } @@ -1563,7 +1583,10 @@ static ssize_t nic_receive(VLANClientState *vc, const uint8_t * buf, size_t size /* Early receive interrupt not supported. */ //~ eepro100_er_interrupt(s); /* Receive CRC Transfer not supported. */ - assert(!(s->configuration[18] & 4)); + if (s->configuration[18] & 4) { + missing("Receive CRC Transfer"); + return -1; + } /* TODO: check stripping enable bit. */ //~ assert(!(s->configuration[17] & 1)); cpu_physical_memory_write(s->ru_base + s->ru_offset + @@ -1573,7 +1596,8 @@ static ssize_t nic_receive(VLANClientState *vc, const uint8_t * buf, size_t size s->ru_offset = le32_to_cpu(rx.link); if (rfd_command & 0x8000) { /* EL bit is set, so this was the last frame. */ - assert(0); + logout("receive: Running out of frames\n"); + set_ru_state(s, ru_suspended); } if (rfd_command & 0x4000) { /* S bit is set. */ |