2 * QEMU RTL8139 emulation
4 * Copyright (c) 2006 Igor Kovalenko
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 * 2006-Jan-28 Mark Malakanov : TSAD and CSCR implementation (for Windows driver)
27 * 2006-Apr-28 Juergen Lock : EEPROM emulation changes for FreeBSD driver
28 * HW revision ID changes for FreeBSD driver
30 * 2006-Jul-01 Igor Kovalenko : Implemented loopback mode for FreeBSD driver
31 * Corrected packet transfer reassembly routine for 8139C+ mode
32 * Rearranged debugging print statements
33 * Implemented PCI timer interrupt (disabled by default)
34 * Implemented Tally Counters, increased VM load/save version
35 * Implemented IP/TCP/UDP checksum task offloading
37 * 2006-Jul-04 Igor Kovalenko : Implemented TCP segmentation offloading
38 * Fixed MTU=1500 for produced ethernet frames
40 * 2006-Jul-09 Igor Kovalenko : Fixed TCP header length calculation while processing
41 * segmentation offloading
42 * Removed slirp.h dependency
43 * Added rx/tx buffer reset when enabling rx/tx operation
48 /* debug RTL8139 card */
49 //#define DEBUG_RTL8139 1
51 #define PCI_FREQUENCY 33000000L
53 /* debug RTL8139 card C+ mode only */
54 //#define DEBUG_RTL8139CP 1
56 /* RTL8139 provides frame CRC with received packet, this feature seems to be
57 ignored by most drivers, disabled by default */
58 //#define RTL8139_CALCULATE_RXCRC 1
60 /* Uncomment to enable on-board timer interrupts */
61 //#define RTL8139_ONBOARD_TIMER 1
63 #if defined(RTL8139_CALCULATE_RXCRC)
68 #define SET_MASKED(input, mask, curr) \
69 ( ( (input) & ~(mask) ) | ( (curr) & (mask) ) )
71 /* arg % size for size which is a power of 2 */
72 #define MOD2(input, size) \
73 ( ( input ) & ( size - 1 ) )
75 #if defined (DEBUG_RTL8139)
76 # define DEBUG_PRINT(x) do { printf x ; } while (0)
78 # define DEBUG_PRINT(x)
81 /* Symbolic offsets to registers. */
82 enum RTL8139_registers {
83 MAC0 = 0, /* Ethernet hardware address. */
84 MAR0 = 8, /* Multicast filter. */
85 TxStatus0 = 0x10,/* Transmit status (Four 32bit registers). C mode only */
86 /* Dump Tally Conter control register(64bit). C+ mode only */
87 TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
96 Timer = 0x48, /* A general-purpose counter. */
97 RxMissed = 0x4C, /* 24 bits valid, write clears. */
104 Config4 = 0x5A, /* absent on RTL-8139A */
107 PCIRevisionID = 0x5E,
108 TxSummary = 0x60, /* TSAD register. Transmit Status of All Descriptors*/
109 BasicModeCtrl = 0x62,
110 BasicModeStatus = 0x64,
113 NWayExpansion = 0x6A,
114 /* Undocumented registers, but required for proper operation. */
115 FIFOTMS = 0x70, /* FIFO Control and test. */
116 CSCR = 0x74, /* Chip Status and Configuration Register. */
118 PARA7c = 0x7c, /* Magic transceiver parameter register. */
119 Config5 = 0xD8, /* absent on RTL-8139A */
121 TxPoll = 0xD9, /* Tell chip to check Tx descriptors for work */
122 RxMaxSize = 0xDA, /* Max size of an Rx packet (8169 only) */
123 CpCmd = 0xE0, /* C+ Command register (C+ mode only) */
124 IntrMitigate = 0xE2, /* rx/tx interrupt mitigation control */
125 RxRingAddrLO = 0xE4, /* 64-bit start addr of Rx ring */
126 RxRingAddrHI = 0xE8, /* 64-bit start addr of Rx ring */
127 TxThresh = 0xEC, /* Early Tx threshold */
131 MultiIntrClear = 0xF000,
133 Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
145 CPlusRxVLAN = 0x0040, /* enable receive VLAN detagging */
146 CPlusRxChkSum = 0x0020, /* enable receive checksum offloading */
151 /* Interrupt register bits, using my own meaningful names. */
152 enum IntrStatusBits {
163 RxAckBits = RxFIFOOver | RxOverflow | RxOK,
170 TxOutOfWindow = 0x20000000,
171 TxAborted = 0x40000000,
172 TxCarrierLost = 0x80000000,
175 RxMulticast = 0x8000,
177 RxBroadcast = 0x2000,
178 RxBadSymbol = 0x0020,
186 /* Bits in RxConfig. */
190 AcceptBroadcast = 0x08,
191 AcceptMulticast = 0x04,
193 AcceptAllPhys = 0x01,
196 /* Bits in TxConfig. */
197 enum tx_config_bits {
199 /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */
201 TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */
202 TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */
203 TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */
204 TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */
206 TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
207 TxCRC = (1 << 16), /* DISABLE appending CRC to end of Tx packets */
208 TxClearAbt = (1 << 0), /* Clear abort (WO) */
209 TxDMAShift = 8, /* DMA burst value (0-7) is shifted this many bits */
210 TxRetryShift = 4, /* TXRR value (0-15) is shifted this many bits */
212 TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
216 /* Transmit Status of All Descriptors (TSAD) Register */
218 TSAD_TOK3 = 1<<15, // TOK bit of Descriptor 3
219 TSAD_TOK2 = 1<<14, // TOK bit of Descriptor 2
220 TSAD_TOK1 = 1<<13, // TOK bit of Descriptor 1
221 TSAD_TOK0 = 1<<12, // TOK bit of Descriptor 0
222 TSAD_TUN3 = 1<<11, // TUN bit of Descriptor 3
223 TSAD_TUN2 = 1<<10, // TUN bit of Descriptor 2
224 TSAD_TUN1 = 1<<9, // TUN bit of Descriptor 1
225 TSAD_TUN0 = 1<<8, // TUN bit of Descriptor 0
226 TSAD_TABT3 = 1<<07, // TABT bit of Descriptor 3
227 TSAD_TABT2 = 1<<06, // TABT bit of Descriptor 2
228 TSAD_TABT1 = 1<<05, // TABT bit of Descriptor 1
229 TSAD_TABT0 = 1<<04, // TABT bit of Descriptor 0
230 TSAD_OWN3 = 1<<03, // OWN bit of Descriptor 3
231 TSAD_OWN2 = 1<<02, // OWN bit of Descriptor 2
232 TSAD_OWN1 = 1<<01, // OWN bit of Descriptor 1
233 TSAD_OWN0 = 1<<00, // OWN bit of Descriptor 0
237 /* Bits in Config1 */
239 Cfg1_PM_Enable = 0x01,
240 Cfg1_VPD_Enable = 0x02,
243 LWAKE = 0x10, /* not on 8139, 8139A */
244 Cfg1_Driver_Load = 0x20,
247 SLEEP = (1 << 1), /* only on 8139, 8139A */
248 PWRDN = (1 << 0), /* only on 8139, 8139A */
251 /* Bits in Config3 */
253 Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */
254 Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */
255 Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */
256 Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */
257 Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */
258 Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */
259 Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */
260 Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */
263 /* Bits in Config4 */
265 LWPTN = (1 << 2), /* not on 8139, 8139A */
268 /* Bits in Config5 */
270 Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */
271 Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */
272 Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */
273 Cfg5_FIFOAddrPtr = (1 << 3), /* Realtek internal SRAM testing */
274 Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */
275 Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */
276 Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */
280 /* rx fifo threshold */
282 RxCfgFIFONone = (7 << RxCfgFIFOShift),
286 RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
288 /* rx ring buffer length */
290 RxCfgRcv16K = (1 << 11),
291 RxCfgRcv32K = (1 << 12),
292 RxCfgRcv64K = (1 << 11) | (1 << 12),
294 /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */
298 /* Twister tuning parameters from RealTek.
299 Completely undocumented, but required to tune bad links on some boards. */
302 CSCR_LinkOKBit = 0x0400,
303 CSCR_LinkChangeBit = 0x0800,
304 CSCR_LinkStatusBits = 0x0f000,
305 CSCR_LinkDownOffCmd = 0x003c0,
306 CSCR_LinkDownCmd = 0x0f3c0,
309 CSCR_Testfun = 1<<15, /* 1 = Auto-neg speeds up internal timer, WO, def 0 */
310 CSCR_LD = 1<<9, /* Active low TPI link disable signal. When low, TPI still transmits link pulses and TPI stays in good link state. def 1*/
311 CSCR_HEART_BIT = 1<<8, /* 1 = HEART BEAT enable, 0 = HEART BEAT disable. HEART BEAT function is only valid in 10Mbps mode. def 1*/
312 CSCR_JBEN = 1<<7, /* 1 = enable jabber function. 0 = disable jabber function, def 1*/
313 CSCR_F_LINK_100 = 1<<6, /* Used to login force good link in 100Mbps for diagnostic purposes. 1 = DISABLE, 0 = ENABLE. def 1*/
314 CSCR_F_Connect = 1<<5, /* Assertion of this bit forces the disconnect function to be bypassed. def 0*/
315 CSCR_Con_status = 1<<3, /* This bit indicates the status of the connection. 1 = valid connected link detected; 0 = disconnected link detected. RO def 0*/
316 CSCR_Con_status_En = 1<<2, /* Assertion of this bit configures LED1 pin to indicate connection status. def 0*/
317 CSCR_PASS_SCR = 1<<0, /* Bypass Scramble, def 0*/
322 Cfg9346_Unlock = 0xC0,
339 HasHltClk = (1 << 0),
343 #define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \
344 (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22)
345 #define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1)
347 #define RTL8139_PCI_REVID_8139 0x10
348 #define RTL8139_PCI_REVID_8139CPLUS 0x20
350 #define RTL8139_PCI_REVID RTL8139_PCI_REVID_8139CPLUS
352 /* Size is 64 * 16bit words */
353 #define EEPROM_9346_ADDR_BITS 6
354 #define EEPROM_9346_SIZE (1 << EEPROM_9346_ADDR_BITS)
355 #define EEPROM_9346_ADDR_MASK (EEPROM_9346_SIZE - 1)
357 enum Chip9346Operation
359 Chip9346_op_mask = 0xc0, /* 10 zzzzzz */
360 Chip9346_op_read = 0x80, /* 10 AAAAAA */
361 Chip9346_op_write = 0x40, /* 01 AAAAAA D(15)..D(0) */
362 Chip9346_op_ext_mask = 0xf0, /* 11 zzzzzz */
363 Chip9346_op_write_enable = 0x30, /* 00 11zzzz */
364 Chip9346_op_write_all = 0x10, /* 00 01zzzz */
365 Chip9346_op_write_disable = 0x00, /* 00 00zzzz */
371 Chip9346_enter_command_mode,
372 Chip9346_read_command,
373 Chip9346_data_read, /* from output register */
374 Chip9346_data_write, /* to input register, then to contents at specified address */
375 Chip9346_data_write_all, /* to input register, then filling contents */
378 typedef struct EEprom9346
380 uint16_t contents[EEPROM_9346_SIZE];
393 typedef struct RTL8139TallyCounters
409 } RTL8139TallyCounters;
411 /* Clears all tally counters */
412 static void RTL8139TallyCounters_clear(RTL8139TallyCounters* counters);
414 /* Writes tally counters to specified physical memory address */
415 static void RTL8139TallyCounters_physical_memory_write(target_phys_addr_t tc_addr, RTL8139TallyCounters* counters);
417 /* Loads values of tally counters from VM state file */
418 static void RTL8139TallyCounters_load(QEMUFile* f, RTL8139TallyCounters *tally_counters);
420 /* Saves values of tally counters to VM state file */
421 static void RTL8139TallyCounters_save(QEMUFile* f, RTL8139TallyCounters *tally_counters);
423 typedef struct RTL8139State {
424 uint8_t phys[8]; /* mac address */
425 uint8_t mult[8]; /* multicast mask array */
427 uint32_t TxStatus[4]; /* TxStatus0 in C mode*/ /* also DTCCR[0] and DTCCR[1] in C+ mode */
428 uint32_t TxAddr[4]; /* TxAddr0 */
429 uint32_t RxBuf; /* Receive buffer */
430 uint32_t RxBufferSize;/* internal variable, receive ring buffer size in C mode */
450 uint8_t clock_enabled;
451 uint8_t bChipCmdState;
455 uint16_t BasicModeCtrl;
456 uint16_t BasicModeStatus;
459 uint16_t NWayExpansion;
468 int rtl8139_mmio_io_addr;
474 uint32_t currCPlusRxDesc;
475 uint32_t currCPlusTxDesc;
477 uint32_t RxRingAddrLO;
478 uint32_t RxRingAddrHI;
487 RTL8139TallyCounters tally_counters;
489 /* Non-persistent data */
490 uint8_t *cplus_txbuffer;
491 int cplus_txbuffer_len;
492 int cplus_txbuffer_offset;
494 /* PCI interrupt timer */
499 void prom9346_decode_command(EEprom9346 *eeprom, uint8_t command)
501 DEBUG_PRINT(("RTL8139: eeprom command 0x%02x\n", command));
503 switch (command & Chip9346_op_mask)
505 case Chip9346_op_read:
507 eeprom->address = command & EEPROM_9346_ADDR_MASK;
508 eeprom->output = eeprom->contents[eeprom->address];
511 eeprom->mode = Chip9346_data_read;
512 DEBUG_PRINT(("RTL8139: eeprom read from address 0x%02x data=0x%04x\n",
513 eeprom->address, eeprom->output));
517 case Chip9346_op_write:
519 eeprom->address = command & EEPROM_9346_ADDR_MASK;
522 eeprom->mode = Chip9346_none; /* Chip9346_data_write */
523 DEBUG_PRINT(("RTL8139: eeprom begin write to address 0x%02x\n",
528 eeprom->mode = Chip9346_none;
529 switch (command & Chip9346_op_ext_mask)
531 case Chip9346_op_write_enable:
532 DEBUG_PRINT(("RTL8139: eeprom write enabled\n"));
534 case Chip9346_op_write_all:
535 DEBUG_PRINT(("RTL8139: eeprom begin write all\n"));
537 case Chip9346_op_write_disable:
538 DEBUG_PRINT(("RTL8139: eeprom write disabled\n"));
545 void prom9346_shift_clock(EEprom9346 *eeprom)
547 int bit = eeprom->eedi?1:0;
551 DEBUG_PRINT(("eeprom: tick %d eedi=%d eedo=%d\n", eeprom->tick, eeprom->eedi, eeprom->eedo));
553 switch (eeprom->mode)
555 case Chip9346_enter_command_mode:
558 eeprom->mode = Chip9346_read_command;
561 DEBUG_PRINT(("eeprom: +++ synchronized, begin command read\n"));
565 case Chip9346_read_command:
566 eeprom->input = (eeprom->input << 1) | (bit & 1);
567 if (eeprom->tick == 8)
569 prom9346_decode_command(eeprom, eeprom->input & 0xff);
573 case Chip9346_data_read:
574 eeprom->eedo = (eeprom->output & 0x8000)?1:0;
575 eeprom->output <<= 1;
576 if (eeprom->tick == 16)
579 // the FreeBSD drivers (rl and re) don't explicitly toggle
580 // CS between reads (or does setting Cfg9346 to 0 count too?),
581 // so we need to enter wait-for-command state here
582 eeprom->mode = Chip9346_enter_command_mode;
586 DEBUG_PRINT(("eeprom: +++ end of read, awaiting next command\n"));
588 // original behaviour
590 eeprom->address &= EEPROM_9346_ADDR_MASK;
591 eeprom->output = eeprom->contents[eeprom->address];
594 DEBUG_PRINT(("eeprom: +++ read next address 0x%02x data=0x%04x\n",
595 eeprom->address, eeprom->output));
600 case Chip9346_data_write:
601 eeprom->input = (eeprom->input << 1) | (bit & 1);
602 if (eeprom->tick == 16)
604 DEBUG_PRINT(("RTL8139: eeprom write to address 0x%02x data=0x%04x\n",
605 eeprom->address, eeprom->input));
607 eeprom->contents[eeprom->address] = eeprom->input;
608 eeprom->mode = Chip9346_none; /* waiting for next command after CS cycle */
614 case Chip9346_data_write_all:
615 eeprom->input = (eeprom->input << 1) | (bit & 1);
616 if (eeprom->tick == 16)
619 for (i = 0; i < EEPROM_9346_SIZE; i++)
621 eeprom->contents[i] = eeprom->input;
623 DEBUG_PRINT(("RTL8139: eeprom filled with data=0x%04x\n",
626 eeprom->mode = Chip9346_enter_command_mode;
637 int prom9346_get_wire(RTL8139State *s)
639 EEprom9346 *eeprom = &s->eeprom;
646 void prom9346_set_wire(RTL8139State *s, int eecs, int eesk, int eedi)
648 EEprom9346 *eeprom = &s->eeprom;
649 uint8_t old_eecs = eeprom->eecs;
650 uint8_t old_eesk = eeprom->eesk;
656 DEBUG_PRINT(("eeprom: +++ wires CS=%d SK=%d DI=%d DO=%d\n",
657 eeprom->eecs, eeprom->eesk, eeprom->eedi, eeprom->eedo));
659 if (!old_eecs && eecs)
661 /* Synchronize start */
665 eeprom->mode = Chip9346_enter_command_mode;
667 DEBUG_PRINT(("=== eeprom: begin access, enter command mode\n"));
672 DEBUG_PRINT(("=== eeprom: end access\n"));
676 if (!old_eesk && eesk)
679 prom9346_shift_clock(eeprom);
683 static void rtl8139_update_irq(RTL8139State *s)
686 isr = (s->IntrStatus & s->IntrMask) & 0xffff;
688 DEBUG_PRINT(("RTL8139: Set IRQ line %d to %d (%04x %04x)\n",
689 s->irq, isr ? 1 : 0, s->IntrStatus, s->IntrMask));
693 pci_set_irq(s->pci_dev, 0, (isr != 0));
696 pic_set_irq(s->irq, (isr != 0));
700 #define POLYNOMIAL 0x04c11db6
704 static int compute_mcast_idx(const uint8_t *ep)
711 for (i = 0; i < 6; i++) {
713 for (j = 0; j < 8; j++) {
714 carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01);
718 crc = ((crc ^ POLYNOMIAL) | carry);
724 static int rtl8139_RxWrap(RTL8139State *s)
726 /* wrapping enabled; assume 1.5k more buffer space if size < 65536 */
727 return (s->RxConfig & (1 << 7));
730 static int rtl8139_receiver_enabled(RTL8139State *s)
732 return s->bChipCmdState & CmdRxEnb;
735 static int rtl8139_transmitter_enabled(RTL8139State *s)
737 return s->bChipCmdState & CmdTxEnb;
740 static int rtl8139_cp_receiver_enabled(RTL8139State *s)
742 return s->CpCmd & CPlusRxEnb;
745 static int rtl8139_cp_transmitter_enabled(RTL8139State *s)
747 return s->CpCmd & CPlusTxEnb;
750 static void rtl8139_write_buffer(RTL8139State *s, const void *buf, int size)
752 if (s->RxBufAddr + size > s->RxBufferSize)
754 int wrapped = MOD2(s->RxBufAddr + size, s->RxBufferSize);
756 /* write packet data */
757 if (wrapped && s->RxBufferSize < 65536 && !rtl8139_RxWrap(s))
759 DEBUG_PRINT((">>> RTL8139: rx packet wrapped in buffer at %d\n", size-wrapped));
763 cpu_physical_memory_write( s->RxBuf + s->RxBufAddr,
767 /* reset buffer pointer */
770 cpu_physical_memory_write( s->RxBuf + s->RxBufAddr,
771 buf + (size-wrapped), wrapped );
773 s->RxBufAddr = wrapped;
779 /* non-wrapping path or overwrapping enabled */
780 cpu_physical_memory_write( s->RxBuf + s->RxBufAddr, buf, size );
782 s->RxBufAddr += size;
785 #define MIN_BUF_SIZE 60
786 static inline target_phys_addr_t rtl8139_addr64(uint32_t low, uint32_t high)
788 #if TARGET_PHYS_ADDR_BITS > 32
789 return low | ((target_phys_addr_t)high << 32);
795 static int rtl8139_can_receive(void *opaque)
797 RTL8139State *s = opaque;
800 /* Recieve (drop) packets if card is disabled. */
801 if (!s->clock_enabled)
803 if (!rtl8139_receiver_enabled(s))
806 if (rtl8139_cp_receiver_enabled(s)) {
807 /* ??? Flow control not implemented in c+ mode.
808 This is a hack to work around slirp deficiencies anyway. */
811 avail = MOD2(s->RxBufferSize + s->RxBufPtr - s->RxBufAddr,
813 return (avail == 0 || avail >= 1514);
817 static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int do_interrupt)
819 RTL8139State *s = opaque;
821 uint32_t packet_header = 0;
824 static const uint8_t broadcast_macaddr[6] =
825 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
827 DEBUG_PRINT((">>> RTL8139: received len=%d\n", size));
829 /* test if board clock is stopped */
830 if (!s->clock_enabled)
832 DEBUG_PRINT(("RTL8139: stopped ==========================\n"));
836 /* first check if receiver is enabled */
838 if (!rtl8139_receiver_enabled(s))
840 DEBUG_PRINT(("RTL8139: receiver disabled ================\n"));
844 /* XXX: check this */
845 if (s->RxConfig & AcceptAllPhys) {
846 /* promiscuous: receive all */
847 DEBUG_PRINT((">>> RTL8139: packet received in promiscuous mode\n"));
850 if (!memcmp(buf, broadcast_macaddr, 6)) {
851 /* broadcast address */
852 if (!(s->RxConfig & AcceptBroadcast))
854 DEBUG_PRINT((">>> RTL8139: broadcast packet rejected\n"));
856 /* update tally counter */
857 ++s->tally_counters.RxERR;
862 packet_header |= RxBroadcast;
864 DEBUG_PRINT((">>> RTL8139: broadcast packet received\n"));
866 /* update tally counter */
867 ++s->tally_counters.RxOkBrd;
869 } else if (buf[0] & 0x01) {
871 if (!(s->RxConfig & AcceptMulticast))
873 DEBUG_PRINT((">>> RTL8139: multicast packet rejected\n"));
875 /* update tally counter */
876 ++s->tally_counters.RxERR;
881 int mcast_idx = compute_mcast_idx(buf);
883 if (!(s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))))
885 DEBUG_PRINT((">>> RTL8139: multicast address mismatch\n"));
887 /* update tally counter */
888 ++s->tally_counters.RxERR;
893 packet_header |= RxMulticast;
895 DEBUG_PRINT((">>> RTL8139: multicast packet received\n"));
897 /* update tally counter */
898 ++s->tally_counters.RxOkMul;
900 } else if (s->phys[0] == buf[0] &&
901 s->phys[1] == buf[1] &&
902 s->phys[2] == buf[2] &&
903 s->phys[3] == buf[3] &&
904 s->phys[4] == buf[4] &&
905 s->phys[5] == buf[5]) {
907 if (!(s->RxConfig & AcceptMyPhys))
909 DEBUG_PRINT((">>> RTL8139: rejecting physical address matching packet\n"));
911 /* update tally counter */
912 ++s->tally_counters.RxERR;
917 packet_header |= RxPhysical;
919 DEBUG_PRINT((">>> RTL8139: physical address matching packet received\n"));
921 /* update tally counter */
922 ++s->tally_counters.RxOkPhy;
926 DEBUG_PRINT((">>> RTL8139: unknown packet\n"));
928 /* update tally counter */
929 ++s->tally_counters.RxERR;
935 /* if too small buffer, then expand it */
936 if (size < MIN_BUF_SIZE) {
937 memcpy(buf1, buf, size);
938 memset(buf1 + size, 0, MIN_BUF_SIZE - size);
943 if (rtl8139_cp_receiver_enabled(s))
945 DEBUG_PRINT(("RTL8139: in C+ Rx mode ================\n"));
947 /* begin C+ receiver mode */
949 /* w0 ownership flag */
950 #define CP_RX_OWN (1<<31)
951 /* w0 end of ring flag */
952 #define CP_RX_EOR (1<<30)
953 /* w0 bits 0...12 : buffer size */
954 #define CP_RX_BUFFER_SIZE_MASK ((1<<13) - 1)
955 /* w1 tag available flag */
956 #define CP_RX_TAVA (1<<16)
957 /* w1 bits 0...15 : VLAN tag */
958 #define CP_RX_VLAN_TAG_MASK ((1<<16) - 1)
959 /* w2 low 32bit of Rx buffer ptr */
960 /* w3 high 32bit of Rx buffer ptr */
962 int descriptor = s->currCPlusRxDesc;
963 target_phys_addr_t cplus_rx_ring_desc;
965 cplus_rx_ring_desc = rtl8139_addr64(s->RxRingAddrLO, s->RxRingAddrHI);
966 cplus_rx_ring_desc += 16 * descriptor;
968 DEBUG_PRINT(("RTL8139: +++ C+ mode reading RX descriptor %d from host memory at %08x %08x = %016" PRIx64 "\n",
969 descriptor, s->RxRingAddrHI, s->RxRingAddrLO, (uint64_t)cplus_rx_ring_desc));
971 uint32_t val, rxdw0,rxdw1,rxbufLO,rxbufHI;
973 cpu_physical_memory_read(cplus_rx_ring_desc, (uint8_t *)&val, 4);
974 rxdw0 = le32_to_cpu(val);
975 cpu_physical_memory_read(cplus_rx_ring_desc+4, (uint8_t *)&val, 4);
976 rxdw1 = le32_to_cpu(val);
977 cpu_physical_memory_read(cplus_rx_ring_desc+8, (uint8_t *)&val, 4);
978 rxbufLO = le32_to_cpu(val);
979 cpu_physical_memory_read(cplus_rx_ring_desc+12, (uint8_t *)&val, 4);
980 rxbufHI = le32_to_cpu(val);
982 DEBUG_PRINT(("RTL8139: +++ C+ mode RX descriptor %d %08x %08x %08x %08x\n",
984 rxdw0, rxdw1, rxbufLO, rxbufHI));
986 if (!(rxdw0 & CP_RX_OWN))
988 DEBUG_PRINT(("RTL8139: C+ Rx mode : descriptor %d is owned by host\n", descriptor));
990 s->IntrStatus |= RxOverflow;
993 /* update tally counter */
994 ++s->tally_counters.RxERR;
995 ++s->tally_counters.MissPkt;
997 rtl8139_update_irq(s);
1001 uint32_t rx_space = rxdw0 & CP_RX_BUFFER_SIZE_MASK;
1003 /* TODO: scatter the packet over available receive ring descriptors space */
1005 if (size+4 > rx_space)
1007 DEBUG_PRINT(("RTL8139: C+ Rx mode : descriptor %d size %d received %d + 4\n",
1008 descriptor, rx_space, size));
1010 s->IntrStatus |= RxOverflow;
1013 /* update tally counter */
1014 ++s->tally_counters.RxERR;
1015 ++s->tally_counters.MissPkt;
1017 rtl8139_update_irq(s);
1021 target_phys_addr_t rx_addr = rtl8139_addr64(rxbufLO, rxbufHI);
1023 /* receive/copy to target memory */
1024 cpu_physical_memory_write( rx_addr, buf, size );
1026 if (s->CpCmd & CPlusRxChkSum)
1028 /* do some packet checksumming */
1031 /* write checksum */
1032 #if defined (RTL8139_CALCULATE_RXCRC)
1033 val = cpu_to_le32(crc32(~0, buf, size));
1037 cpu_physical_memory_write( rx_addr+size, (uint8_t *)&val, 4);
1039 /* first segment of received packet flag */
1040 #define CP_RX_STATUS_FS (1<<29)
1041 /* last segment of received packet flag */
1042 #define CP_RX_STATUS_LS (1<<28)
1043 /* multicast packet flag */
1044 #define CP_RX_STATUS_MAR (1<<26)
1045 /* physical-matching packet flag */
1046 #define CP_RX_STATUS_PAM (1<<25)
1047 /* broadcast packet flag */
1048 #define CP_RX_STATUS_BAR (1<<24)
1049 /* runt packet flag */
1050 #define CP_RX_STATUS_RUNT (1<<19)
1051 /* crc error flag */
1052 #define CP_RX_STATUS_CRC (1<<18)
1053 /* IP checksum error flag */
1054 #define CP_RX_STATUS_IPF (1<<15)
1055 /* UDP checksum error flag */
1056 #define CP_RX_STATUS_UDPF (1<<14)
1057 /* TCP checksum error flag */
1058 #define CP_RX_STATUS_TCPF (1<<13)
1060 /* transfer ownership to target */
1061 rxdw0 &= ~CP_RX_OWN;
1063 /* set first segment bit */
1064 rxdw0 |= CP_RX_STATUS_FS;
1066 /* set last segment bit */
1067 rxdw0 |= CP_RX_STATUS_LS;
1069 /* set received packet type flags */
1070 if (packet_header & RxBroadcast)
1071 rxdw0 |= CP_RX_STATUS_BAR;
1072 if (packet_header & RxMulticast)
1073 rxdw0 |= CP_RX_STATUS_MAR;
1074 if (packet_header & RxPhysical)
1075 rxdw0 |= CP_RX_STATUS_PAM;
1077 /* set received size */
1078 rxdw0 &= ~CP_RX_BUFFER_SIZE_MASK;
1081 /* reset VLAN tag flag */
1082 rxdw1 &= ~CP_RX_TAVA;
1084 /* update ring data */
1085 val = cpu_to_le32(rxdw0);
1086 cpu_physical_memory_write(cplus_rx_ring_desc, (uint8_t *)&val, 4);
1087 val = cpu_to_le32(rxdw1);
1088 cpu_physical_memory_write(cplus_rx_ring_desc+4, (uint8_t *)&val, 4);
1090 /* update tally counter */
1091 ++s->tally_counters.RxOk;
1093 /* seek to next Rx descriptor */
1094 if (rxdw0 & CP_RX_EOR)
1096 s->currCPlusRxDesc = 0;
1100 ++s->currCPlusRxDesc;
1103 DEBUG_PRINT(("RTL8139: done C+ Rx mode ----------------\n"));
1108 DEBUG_PRINT(("RTL8139: in ring Rx mode ================\n"));
1110 /* begin ring receiver mode */
1111 int avail = MOD2(s->RxBufferSize + s->RxBufPtr - s->RxBufAddr, s->RxBufferSize);
1113 /* if receiver buffer is empty then avail == 0 */
1115 if (avail != 0 && size + 8 >= avail)
1117 DEBUG_PRINT(("rx overflow: rx buffer length %d head 0x%04x read 0x%04x === available 0x%04x need 0x%04x\n",
1118 s->RxBufferSize, s->RxBufAddr, s->RxBufPtr, avail, size + 8));
1120 s->IntrStatus |= RxOverflow;
1122 rtl8139_update_irq(s);
1126 packet_header |= RxStatusOK;
1128 packet_header |= (((size+4) << 16) & 0xffff0000);
1131 uint32_t val = cpu_to_le32(packet_header);
1133 rtl8139_write_buffer(s, (uint8_t *)&val, 4);
1135 rtl8139_write_buffer(s, buf, size);
1137 /* write checksum */
1138 #if defined (RTL8139_CALCULATE_RXCRC)
1139 val = cpu_to_le32(crc32(~0, buf, size));
1144 rtl8139_write_buffer(s, (uint8_t *)&val, 4);
1146 /* correct buffer write pointer */
1147 s->RxBufAddr = MOD2((s->RxBufAddr + 3) & ~0x3, s->RxBufferSize);
1149 /* now we can signal we have received something */
1151 DEBUG_PRINT((" received: rx buffer length %d head 0x%04x read 0x%04x\n",
1152 s->RxBufferSize, s->RxBufAddr, s->RxBufPtr));
1155 s->IntrStatus |= RxOK;
1159 rtl8139_update_irq(s);
1163 static void rtl8139_receive(void *opaque, const uint8_t *buf, int size)
1165 rtl8139_do_receive(opaque, buf, size, 1);
1168 static void rtl8139_reset_rxring(RTL8139State *s, uint32_t bufferSize)
1170 s->RxBufferSize = bufferSize;
1175 static void rtl8139_reset(RTL8139State *s)
1179 /* restore MAC address */
1180 memcpy(s->phys, s->macaddr, 6);
1182 /* reset interrupt mask */
1186 rtl8139_update_irq(s);
1188 /* prepare eeprom */
1189 s->eeprom.contents[0] = 0x8129;
1191 // PCI vendor and device ID should be mirrored here
1192 s->eeprom.contents[1] = 0x10ec;
1193 s->eeprom.contents[2] = 0x8139;
1195 memcpy(&s->eeprom.contents[7], s->macaddr, 6);
1197 /* mark all status registers as owned by host */
1198 for (i = 0; i < 4; ++i)
1200 s->TxStatus[i] = TxHostOwns;
1204 s->currCPlusRxDesc = 0;
1205 s->currCPlusTxDesc = 0;
1207 s->RxRingAddrLO = 0;
1208 s->RxRingAddrHI = 0;
1212 rtl8139_reset_rxring(s, 8192);
1218 // s->TxConfig |= HW_REVID(1, 0, 0, 0, 0, 0, 0); // RTL-8139 HasHltClk
1219 s->clock_enabled = 0;
1221 s->TxConfig |= HW_REVID(1, 1, 1, 0, 1, 1, 0); // RTL-8139C+ HasLWake
1222 s->clock_enabled = 1;
1225 s->bChipCmdState = CmdReset; /* RxBufEmpty bit is calculated on read from ChipCmd */;
1227 /* set initial state data */
1228 s->Config0 = 0x0; /* No boot ROM */
1229 s->Config1 = 0xC; /* IO mapped and MEM mapped registers available */
1230 s->Config3 = 0x1; /* fast back-to-back compatible */
1233 s->CSCR = CSCR_F_LINK_100 | CSCR_HEART_BIT | CSCR_LD;
1235 s->CpCmd = 0x0; /* reset C+ mode */
1237 // s->BasicModeCtrl = 0x3100; // 100Mbps, full duplex, autonegotiation
1238 // s->BasicModeCtrl = 0x2100; // 100Mbps, full duplex
1239 s->BasicModeCtrl = 0x1000; // autonegotiation
1241 s->BasicModeStatus = 0x7809;
1242 //s->BasicModeStatus |= 0x0040; /* UTP medium */
1243 s->BasicModeStatus |= 0x0020; /* autonegotiation completed */
1244 s->BasicModeStatus |= 0x0004; /* link is up */
1246 s->NWayAdvert = 0x05e1; /* all modes, full duplex */
1247 s->NWayLPAR = 0x05e1; /* all modes, full duplex */
1248 s->NWayExpansion = 0x0001; /* autonegotiation supported */
1250 /* also reset timer and disable timer interrupt */
1255 /* reset tally counters */
1256 RTL8139TallyCounters_clear(&s->tally_counters);
1259 void RTL8139TallyCounters_clear(RTL8139TallyCounters* counters)
1263 counters->TxERR = 0;
1264 counters->RxERR = 0;
1265 counters->MissPkt = 0;
1267 counters->Tx1Col = 0;
1268 counters->TxMCol = 0;
1269 counters->RxOkPhy = 0;
1270 counters->RxOkBrd = 0;
1271 counters->RxOkMul = 0;
1272 counters->TxAbt = 0;
1273 counters->TxUndrn = 0;
1276 static void RTL8139TallyCounters_physical_memory_write(target_phys_addr_t tc_addr, RTL8139TallyCounters* tally_counters)
1282 val64 = cpu_to_le64(tally_counters->TxOk);
1283 cpu_physical_memory_write(tc_addr + 0, (uint8_t *)&val64, 8);
1285 val64 = cpu_to_le64(tally_counters->RxOk);
1286 cpu_physical_memory_write(tc_addr + 8, (uint8_t *)&val64, 8);
1288 val64 = cpu_to_le64(tally_counters->TxERR);
1289 cpu_physical_memory_write(tc_addr + 16, (uint8_t *)&val64, 8);
1291 val32 = cpu_to_le32(tally_counters->RxERR);
1292 cpu_physical_memory_write(tc_addr + 24, (uint8_t *)&val32, 4);
1294 val16 = cpu_to_le16(tally_counters->MissPkt);
1295 cpu_physical_memory_write(tc_addr + 28, (uint8_t *)&val16, 2);
1297 val16 = cpu_to_le16(tally_counters->FAE);
1298 cpu_physical_memory_write(tc_addr + 30, (uint8_t *)&val16, 2);
1300 val32 = cpu_to_le32(tally_counters->Tx1Col);
1301 cpu_physical_memory_write(tc_addr + 32, (uint8_t *)&val32, 4);
1303 val32 = cpu_to_le32(tally_counters->TxMCol);
1304 cpu_physical_memory_write(tc_addr + 36, (uint8_t *)&val32, 4);
1306 val64 = cpu_to_le64(tally_counters->RxOkPhy);
1307 cpu_physical_memory_write(tc_addr + 40, (uint8_t *)&val64, 8);
1309 val64 = cpu_to_le64(tally_counters->RxOkBrd);
1310 cpu_physical_memory_write(tc_addr + 48, (uint8_t *)&val64, 8);
1312 val32 = cpu_to_le32(tally_counters->RxOkMul);
1313 cpu_physical_memory_write(tc_addr + 56, (uint8_t *)&val32, 4);
1315 val16 = cpu_to_le16(tally_counters->TxAbt);
1316 cpu_physical_memory_write(tc_addr + 60, (uint8_t *)&val16, 2);
1318 val16 = cpu_to_le16(tally_counters->TxUndrn);
1319 cpu_physical_memory_write(tc_addr + 62, (uint8_t *)&val16, 2);
1322 /* Loads values of tally counters from VM state file */
1323 static void RTL8139TallyCounters_load(QEMUFile* f, RTL8139TallyCounters *tally_counters)
1325 qemu_get_be64s(f, &tally_counters->TxOk);
1326 qemu_get_be64s(f, &tally_counters->RxOk);
1327 qemu_get_be64s(f, &tally_counters->TxERR);
1328 qemu_get_be32s(f, &tally_counters->RxERR);
1329 qemu_get_be16s(f, &tally_counters->MissPkt);
1330 qemu_get_be16s(f, &tally_counters->FAE);
1331 qemu_get_be32s(f, &tally_counters->Tx1Col);
1332 qemu_get_be32s(f, &tally_counters->TxMCol);
1333 qemu_get_be64s(f, &tally_counters->RxOkPhy);
1334 qemu_get_be64s(f, &tally_counters->RxOkBrd);
1335 qemu_get_be32s(f, &tally_counters->RxOkMul);
1336 qemu_get_be16s(f, &tally_counters->TxAbt);
1337 qemu_get_be16s(f, &tally_counters->TxUndrn);
1340 /* Saves values of tally counters to VM state file */
1341 static void RTL8139TallyCounters_save(QEMUFile* f, RTL8139TallyCounters *tally_counters)
1343 qemu_put_be64s(f, &tally_counters->TxOk);
1344 qemu_put_be64s(f, &tally_counters->RxOk);
1345 qemu_put_be64s(f, &tally_counters->TxERR);
1346 qemu_put_be32s(f, &tally_counters->RxERR);
1347 qemu_put_be16s(f, &tally_counters->MissPkt);
1348 qemu_put_be16s(f, &tally_counters->FAE);
1349 qemu_put_be32s(f, &tally_counters->Tx1Col);
1350 qemu_put_be32s(f, &tally_counters->TxMCol);
1351 qemu_put_be64s(f, &tally_counters->RxOkPhy);
1352 qemu_put_be64s(f, &tally_counters->RxOkBrd);
1353 qemu_put_be32s(f, &tally_counters->RxOkMul);
1354 qemu_put_be16s(f, &tally_counters->TxAbt);
1355 qemu_put_be16s(f, &tally_counters->TxUndrn);
1358 static void rtl8139_ChipCmd_write(RTL8139State *s, uint32_t val)
1362 DEBUG_PRINT(("RTL8139: ChipCmd write val=0x%08x\n", val));
1366 DEBUG_PRINT(("RTL8139: ChipCmd reset\n"));
1371 DEBUG_PRINT(("RTL8139: ChipCmd enable receiver\n"));
1373 s->currCPlusRxDesc = 0;
1377 DEBUG_PRINT(("RTL8139: ChipCmd enable transmitter\n"));
1379 s->currCPlusTxDesc = 0;
1382 /* mask unwriteable bits */
1383 val = SET_MASKED(val, 0xe3, s->bChipCmdState);
1385 /* Deassert reset pin before next read */
1388 s->bChipCmdState = val;
1391 static int rtl8139_RxBufferEmpty(RTL8139State *s)
1393 int unread = MOD2(s->RxBufferSize + s->RxBufAddr - s->RxBufPtr, s->RxBufferSize);
1397 DEBUG_PRINT(("RTL8139: receiver buffer data available 0x%04x\n", unread));
1401 DEBUG_PRINT(("RTL8139: receiver buffer is empty\n"));
1406 static uint32_t rtl8139_ChipCmd_read(RTL8139State *s)
1408 uint32_t ret = s->bChipCmdState;
1410 if (rtl8139_RxBufferEmpty(s))
1413 DEBUG_PRINT(("RTL8139: ChipCmd read val=0x%04x\n", ret));
1418 static void rtl8139_CpCmd_write(RTL8139State *s, uint32_t val)
1422 DEBUG_PRINT(("RTL8139C+ command register write(w) val=0x%04x\n", val));
1424 /* mask unwriteable bits */
1425 val = SET_MASKED(val, 0xff84, s->CpCmd);
1430 static uint32_t rtl8139_CpCmd_read(RTL8139State *s)
1432 uint32_t ret = s->CpCmd;
1434 DEBUG_PRINT(("RTL8139C+ command register read(w) val=0x%04x\n", ret));
1439 static void rtl8139_IntrMitigate_write(RTL8139State *s, uint32_t val)
1441 DEBUG_PRINT(("RTL8139C+ IntrMitigate register write(w) val=0x%04x\n", val));
1444 static uint32_t rtl8139_IntrMitigate_read(RTL8139State *s)
1448 DEBUG_PRINT(("RTL8139C+ IntrMitigate register read(w) val=0x%04x\n", ret));
1453 int rtl8139_config_writeable(RTL8139State *s)
1455 if (s->Cfg9346 & Cfg9346_Unlock)
1460 DEBUG_PRINT(("RTL8139: Configuration registers are write-protected\n"));
1465 static void rtl8139_BasicModeCtrl_write(RTL8139State *s, uint32_t val)
1469 DEBUG_PRINT(("RTL8139: BasicModeCtrl register write(w) val=0x%04x\n", val));
1471 /* mask unwriteable bits */
1472 uint32 mask = 0x4cff;
1474 if (1 || !rtl8139_config_writeable(s))
1476 /* Speed setting and autonegotiation enable bits are read-only */
1478 /* Duplex mode setting is read-only */
1482 val = SET_MASKED(val, mask, s->BasicModeCtrl);
1484 s->BasicModeCtrl = val;
1487 static uint32_t rtl8139_BasicModeCtrl_read(RTL8139State *s)
1489 uint32_t ret = s->BasicModeCtrl;
1491 DEBUG_PRINT(("RTL8139: BasicModeCtrl register read(w) val=0x%04x\n", ret));
1496 static void rtl8139_BasicModeStatus_write(RTL8139State *s, uint32_t val)
1500 DEBUG_PRINT(("RTL8139: BasicModeStatus register write(w) val=0x%04x\n", val));
1502 /* mask unwriteable bits */
1503 val = SET_MASKED(val, 0xff3f, s->BasicModeStatus);
1505 s->BasicModeStatus = val;
1508 static uint32_t rtl8139_BasicModeStatus_read(RTL8139State *s)
1510 uint32_t ret = s->BasicModeStatus;
1512 DEBUG_PRINT(("RTL8139: BasicModeStatus register read(w) val=0x%04x\n", ret));
1517 static void rtl8139_Cfg9346_write(RTL8139State *s, uint32_t val)
1521 DEBUG_PRINT(("RTL8139: Cfg9346 write val=0x%02x\n", val));
1523 /* mask unwriteable bits */
1524 val = SET_MASKED(val, 0x31, s->Cfg9346);
1526 uint32_t opmode = val & 0xc0;
1527 uint32_t eeprom_val = val & 0xf;
1529 if (opmode == 0x80) {
1531 int eecs = (eeprom_val & 0x08)?1:0;
1532 int eesk = (eeprom_val & 0x04)?1:0;
1533 int eedi = (eeprom_val & 0x02)?1:0;
1534 prom9346_set_wire(s, eecs, eesk, eedi);
1535 } else if (opmode == 0x40) {
1544 static uint32_t rtl8139_Cfg9346_read(RTL8139State *s)
1546 uint32_t ret = s->Cfg9346;
1548 uint32_t opmode = ret & 0xc0;
1553 int eedo = prom9346_get_wire(s);
1564 DEBUG_PRINT(("RTL8139: Cfg9346 read val=0x%02x\n", ret));
1569 static void rtl8139_Config0_write(RTL8139State *s, uint32_t val)
1573 DEBUG_PRINT(("RTL8139: Config0 write val=0x%02x\n", val));
1575 if (!rtl8139_config_writeable(s))
1578 /* mask unwriteable bits */
1579 val = SET_MASKED(val, 0xf8, s->Config0);
1584 static uint32_t rtl8139_Config0_read(RTL8139State *s)
1586 uint32_t ret = s->Config0;
1588 DEBUG_PRINT(("RTL8139: Config0 read val=0x%02x\n", ret));
1593 static void rtl8139_Config1_write(RTL8139State *s, uint32_t val)
1597 DEBUG_PRINT(("RTL8139: Config1 write val=0x%02x\n", val));
1599 if (!rtl8139_config_writeable(s))
1602 /* mask unwriteable bits */
1603 val = SET_MASKED(val, 0xC, s->Config1);
1608 static uint32_t rtl8139_Config1_read(RTL8139State *s)
1610 uint32_t ret = s->Config1;
1612 DEBUG_PRINT(("RTL8139: Config1 read val=0x%02x\n", ret));
1617 static void rtl8139_Config3_write(RTL8139State *s, uint32_t val)
1621 DEBUG_PRINT(("RTL8139: Config3 write val=0x%02x\n", val));
1623 if (!rtl8139_config_writeable(s))
1626 /* mask unwriteable bits */
1627 val = SET_MASKED(val, 0x8F, s->Config3);
1632 static uint32_t rtl8139_Config3_read(RTL8139State *s)
1634 uint32_t ret = s->Config3;
1636 DEBUG_PRINT(("RTL8139: Config3 read val=0x%02x\n", ret));
1641 static void rtl8139_Config4_write(RTL8139State *s, uint32_t val)
1645 DEBUG_PRINT(("RTL8139: Config4 write val=0x%02x\n", val));
1647 if (!rtl8139_config_writeable(s))
1650 /* mask unwriteable bits */
1651 val = SET_MASKED(val, 0x0a, s->Config4);
1656 static uint32_t rtl8139_Config4_read(RTL8139State *s)
1658 uint32_t ret = s->Config4;
1660 DEBUG_PRINT(("RTL8139: Config4 read val=0x%02x\n", ret));
1665 static void rtl8139_Config5_write(RTL8139State *s, uint32_t val)
1669 DEBUG_PRINT(("RTL8139: Config5 write val=0x%02x\n", val));
1671 /* mask unwriteable bits */
1672 val = SET_MASKED(val, 0x80, s->Config5);
1677 static uint32_t rtl8139_Config5_read(RTL8139State *s)
1679 uint32_t ret = s->Config5;
1681 DEBUG_PRINT(("RTL8139: Config5 read val=0x%02x\n", ret));
1686 static void rtl8139_TxConfig_write(RTL8139State *s, uint32_t val)
1688 if (!rtl8139_transmitter_enabled(s))
1690 DEBUG_PRINT(("RTL8139: transmitter disabled; no TxConfig write val=0x%08x\n", val));
1694 DEBUG_PRINT(("RTL8139: TxConfig write val=0x%08x\n", val));
1696 val = SET_MASKED(val, TxVersionMask | 0x8070f80f, s->TxConfig);
1701 static void rtl8139_TxConfig_writeb(RTL8139State *s, uint32_t val)
1703 DEBUG_PRINT(("RTL8139C TxConfig via write(b) val=0x%02x\n", val));
1705 uint32_t tc = s->TxConfig;
1707 tc |= (val & 0x000000FF);
1708 rtl8139_TxConfig_write(s, tc);
1711 static uint32_t rtl8139_TxConfig_read(RTL8139State *s)
1713 uint32_t ret = s->TxConfig;
1715 DEBUG_PRINT(("RTL8139: TxConfig read val=0x%04x\n", ret));
1720 static void rtl8139_RxConfig_write(RTL8139State *s, uint32_t val)
1722 DEBUG_PRINT(("RTL8139: RxConfig write val=0x%08x\n", val));
1724 /* mask unwriteable bits */
1725 val = SET_MASKED(val, 0xf0fc0040, s->RxConfig);
1729 /* reset buffer size and read/write pointers */
1730 rtl8139_reset_rxring(s, 8192 << ((s->RxConfig >> 11) & 0x3));
1732 DEBUG_PRINT(("RTL8139: RxConfig write reset buffer size to %d\n", s->RxBufferSize));
1735 static uint32_t rtl8139_RxConfig_read(RTL8139State *s)
1737 uint32_t ret = s->RxConfig;
1739 DEBUG_PRINT(("RTL8139: RxConfig read val=0x%08x\n", ret));
1744 static void rtl8139_transfer_frame(RTL8139State *s, const uint8_t *buf, int size, int do_interrupt)
1748 DEBUG_PRINT(("RTL8139: +++ empty ethernet frame\n"));
1752 if (TxLoopBack == (s->TxConfig & TxLoopBack))
1754 DEBUG_PRINT(("RTL8139: +++ transmit loopback mode\n"));
1755 rtl8139_do_receive(s, buf, size, do_interrupt);
1759 qemu_send_packet(s->vc, buf, size);
1763 static int rtl8139_transmit_one(RTL8139State *s, int descriptor)
1765 if (!rtl8139_transmitter_enabled(s))
1767 DEBUG_PRINT(("RTL8139: +++ cannot transmit from descriptor %d: transmitter disabled\n",
1772 if (s->TxStatus[descriptor] & TxHostOwns)
1774 DEBUG_PRINT(("RTL8139: +++ cannot transmit from descriptor %d: owned by host (%08x)\n",
1775 descriptor, s->TxStatus[descriptor]));
1779 DEBUG_PRINT(("RTL8139: +++ transmitting from descriptor %d\n", descriptor));
1781 int txsize = s->TxStatus[descriptor] & 0x1fff;
1782 uint8_t txbuffer[0x2000];
1784 DEBUG_PRINT(("RTL8139: +++ transmit reading %d bytes from host memory at 0x%08x\n",
1785 txsize, s->TxAddr[descriptor]));
1787 cpu_physical_memory_read(s->TxAddr[descriptor], txbuffer, txsize);
1789 /* Mark descriptor as transferred */
1790 s->TxStatus[descriptor] |= TxHostOwns;
1791 s->TxStatus[descriptor] |= TxStatOK;
1793 rtl8139_transfer_frame(s, txbuffer, txsize, 0);
1795 DEBUG_PRINT(("RTL8139: +++ transmitted %d bytes from descriptor %d\n", txsize, descriptor));
1797 /* update interrupt */
1798 s->IntrStatus |= TxOK;
1799 rtl8139_update_irq(s);
1804 /* structures and macros for task offloading */
1805 typedef struct ip_header
1807 uint8_t ip_ver_len; /* version and header length */
1808 uint8_t ip_tos; /* type of service */
1809 uint16_t ip_len; /* total length */
1810 uint16_t ip_id; /* identification */
1811 uint16_t ip_off; /* fragment offset field */
1812 uint8_t ip_ttl; /* time to live */
1813 uint8_t ip_p; /* protocol */
1814 uint16_t ip_sum; /* checksum */
1815 uint32_t ip_src,ip_dst; /* source and dest address */
1818 #define IP_HEADER_VERSION_4 4
1819 #define IP_HEADER_VERSION(ip) ((ip->ip_ver_len >> 4)&0xf)
1820 #define IP_HEADER_LENGTH(ip) (((ip->ip_ver_len)&0xf) << 2)
1822 typedef struct tcp_header
1824 uint16_t th_sport; /* source port */
1825 uint16_t th_dport; /* destination port */
1826 uint32_t th_seq; /* sequence number */
1827 uint32_t th_ack; /* acknowledgement number */
1828 uint16_t th_offset_flags; /* data offset, reserved 6 bits, TCP protocol flags */
1829 uint16_t th_win; /* window */
1830 uint16_t th_sum; /* checksum */
1831 uint16_t th_urp; /* urgent pointer */
1834 typedef struct udp_header
1836 uint16_t uh_sport; /* source port */
1837 uint16_t uh_dport; /* destination port */
1838 uint16_t uh_ulen; /* udp length */
1839 uint16_t uh_sum; /* udp checksum */
1842 typedef struct ip_pseudo_header
1848 uint16_t ip_payload;
1851 #define IP_PROTO_TCP 6
1852 #define IP_PROTO_UDP 17
1854 #define TCP_HEADER_DATA_OFFSET(tcp) (((be16_to_cpu(tcp->th_offset_flags) >> 12)&0xf) << 2)
1855 #define TCP_FLAGS_ONLY(flags) ((flags)&0x3f)
1856 #define TCP_HEADER_FLAGS(tcp) TCP_FLAGS_ONLY(be16_to_cpu(tcp->th_offset_flags))
1858 #define TCP_HEADER_CLEAR_FLAGS(tcp, off) ((tcp)->th_offset_flags &= cpu_to_be16(~TCP_FLAGS_ONLY(off)))
1860 #define TCP_FLAG_FIN 0x01
1861 #define TCP_FLAG_PUSH 0x08
1863 /* produces ones' complement sum of data */
1864 static uint16_t ones_complement_sum(uint8_t *data, size_t len)
1866 uint32_t result = 0;
1868 for (; len > 1; data+=2, len-=2)
1870 result += *(uint16_t*)data;
1873 /* add the remainder byte */
1876 uint8_t odd[2] = {*data, 0};
1877 result += *(uint16_t*)odd;
1881 result = (result & 0xffff) + (result >> 16);
1886 static uint16_t ip_checksum(void *data, size_t len)
1888 return ~ones_complement_sum((uint8_t*)data, len);
1891 static int rtl8139_cplus_transmit_one(RTL8139State *s)
1893 if (!rtl8139_transmitter_enabled(s))
1895 DEBUG_PRINT(("RTL8139: +++ C+ mode: transmitter disabled\n"));
1899 if (!rtl8139_cp_transmitter_enabled(s))
1901 DEBUG_PRINT(("RTL8139: +++ C+ mode: C+ transmitter disabled\n"));
1905 int descriptor = s->currCPlusTxDesc;
1907 target_phys_addr_t cplus_tx_ring_desc =
1908 rtl8139_addr64(s->TxAddr[0], s->TxAddr[1]);
1910 /* Normal priority ring */
1911 cplus_tx_ring_desc += 16 * descriptor;
1913 DEBUG_PRINT(("RTL8139: +++ C+ mode reading TX descriptor %d from host memory at %08x0x%08x = 0x%8lx\n",
1914 descriptor, s->TxAddr[1], s->TxAddr[0], cplus_tx_ring_desc));
1916 uint32_t val, txdw0,txdw1,txbufLO,txbufHI;
1918 cpu_physical_memory_read(cplus_tx_ring_desc, (uint8_t *)&val, 4);
1919 txdw0 = le32_to_cpu(val);
1920 cpu_physical_memory_read(cplus_tx_ring_desc+4, (uint8_t *)&val, 4);
1921 txdw1 = le32_to_cpu(val);
1922 cpu_physical_memory_read(cplus_tx_ring_desc+8, (uint8_t *)&val, 4);
1923 txbufLO = le32_to_cpu(val);
1924 cpu_physical_memory_read(cplus_tx_ring_desc+12, (uint8_t *)&val, 4);
1925 txbufHI = le32_to_cpu(val);
1927 DEBUG_PRINT(("RTL8139: +++ C+ mode TX descriptor %d %08x %08x %08x %08x\n",
1929 txdw0, txdw1, txbufLO, txbufHI));
1931 /* w0 ownership flag */
1932 #define CP_TX_OWN (1<<31)
1933 /* w0 end of ring flag */
1934 #define CP_TX_EOR (1<<30)
1935 /* first segment of received packet flag */
1936 #define CP_TX_FS (1<<29)
1937 /* last segment of received packet flag */
1938 #define CP_TX_LS (1<<28)
1939 /* large send packet flag */
1940 #define CP_TX_LGSEN (1<<27)
1941 /* large send MSS mask, bits 16...25 */
1942 #define CP_TC_LGSEN_MSS_MASK ((1 << 12) - 1)
1944 /* IP checksum offload flag */
1945 #define CP_TX_IPCS (1<<18)
1946 /* UDP checksum offload flag */
1947 #define CP_TX_UDPCS (1<<17)
1948 /* TCP checksum offload flag */
1949 #define CP_TX_TCPCS (1<<16)
1951 /* w0 bits 0...15 : buffer size */
1952 #define CP_TX_BUFFER_SIZE (1<<16)
1953 #define CP_TX_BUFFER_SIZE_MASK (CP_TX_BUFFER_SIZE - 1)
1954 /* w1 tag available flag */
1955 #define CP_RX_TAGC (1<<17)
1956 /* w1 bits 0...15 : VLAN tag */
1957 #define CP_TX_VLAN_TAG_MASK ((1<<16) - 1)
1958 /* w2 low 32bit of Rx buffer ptr */
1959 /* w3 high 32bit of Rx buffer ptr */
1961 /* set after transmission */
1962 /* FIFO underrun flag */
1963 #define CP_TX_STATUS_UNF (1<<25)
1964 /* transmit error summary flag, valid if set any of three below */
1965 #define CP_TX_STATUS_TES (1<<23)
1966 /* out-of-window collision flag */
1967 #define CP_TX_STATUS_OWC (1<<22)
1968 /* link failure flag */
1969 #define CP_TX_STATUS_LNKF (1<<21)
1970 /* excessive collisions flag */
1971 #define CP_TX_STATUS_EXC (1<<20)
1973 if (!(txdw0 & CP_TX_OWN))
1975 DEBUG_PRINT(("RTL8139: C+ Tx mode : descriptor %d is owned by host\n", descriptor));
1979 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : transmitting from descriptor %d\n", descriptor));
1981 if (txdw0 & CP_TX_FS)
1983 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : descriptor %d is first segment descriptor\n", descriptor));
1985 /* reset internal buffer offset */
1986 s->cplus_txbuffer_offset = 0;
1989 int txsize = txdw0 & CP_TX_BUFFER_SIZE_MASK;
1990 target_phys_addr_t tx_addr = rtl8139_addr64(txbufLO, txbufHI);
1992 /* make sure we have enough space to assemble the packet */
1993 if (!s->cplus_txbuffer)
1995 s->cplus_txbuffer_len = CP_TX_BUFFER_SIZE;
1996 s->cplus_txbuffer = malloc(s->cplus_txbuffer_len);
1997 s->cplus_txbuffer_offset = 0;
1999 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission buffer allocated space %d\n", s->cplus_txbuffer_len));
2002 while (s->cplus_txbuffer && s->cplus_txbuffer_offset + txsize >= s->cplus_txbuffer_len)
2004 s->cplus_txbuffer_len += CP_TX_BUFFER_SIZE;
2005 s->cplus_txbuffer = realloc(s->cplus_txbuffer, s->cplus_txbuffer_len);
2007 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission buffer space changed to %d\n", s->cplus_txbuffer_len));
2010 if (!s->cplus_txbuffer)
2014 DEBUG_PRINT(("RTL8139: +++ C+ mode transmiter failed to reallocate %d bytes\n", s->cplus_txbuffer_len));
2016 /* update tally counter */
2017 ++s->tally_counters.TxERR;
2018 ++s->tally_counters.TxAbt;
2023 /* append more data to the packet */
2025 DEBUG_PRINT(("RTL8139: +++ C+ mode transmit reading %d bytes from host memory at %016" PRIx64 " to offset %d\n",
2026 txsize, (uint64_t)tx_addr, s->cplus_txbuffer_offset));
2028 cpu_physical_memory_read(tx_addr, s->cplus_txbuffer + s->cplus_txbuffer_offset, txsize);
2029 s->cplus_txbuffer_offset += txsize;
2031 /* seek to next Rx descriptor */
2032 if (txdw0 & CP_TX_EOR)
2034 s->currCPlusTxDesc = 0;
2038 ++s->currCPlusTxDesc;
2039 if (s->currCPlusTxDesc >= 64)
2040 s->currCPlusTxDesc = 0;
2043 /* transfer ownership to target */
2044 txdw0 &= ~CP_RX_OWN;
2046 /* reset error indicator bits */
2047 txdw0 &= ~CP_TX_STATUS_UNF;
2048 txdw0 &= ~CP_TX_STATUS_TES;
2049 txdw0 &= ~CP_TX_STATUS_OWC;
2050 txdw0 &= ~CP_TX_STATUS_LNKF;
2051 txdw0 &= ~CP_TX_STATUS_EXC;
2053 /* update ring data */
2054 val = cpu_to_le32(txdw0);
2055 cpu_physical_memory_write(cplus_tx_ring_desc, (uint8_t *)&val, 4);
2056 // val = cpu_to_le32(txdw1);
2057 // cpu_physical_memory_write(cplus_tx_ring_desc+4, &val, 4);
2059 /* Now decide if descriptor being processed is holding the last segment of packet */
2060 if (txdw0 & CP_TX_LS)
2062 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : descriptor %d is last segment descriptor\n", descriptor));
2064 /* can transfer fully assembled packet */
2066 uint8_t *saved_buffer = s->cplus_txbuffer;
2067 int saved_size = s->cplus_txbuffer_offset;
2068 int saved_buffer_len = s->cplus_txbuffer_len;
2070 /* reset the card space to protect from recursive call */
2071 s->cplus_txbuffer = NULL;
2072 s->cplus_txbuffer_offset = 0;
2073 s->cplus_txbuffer_len = 0;
2075 if (txdw0 & (CP_TX_IPCS | CP_TX_UDPCS | CP_TX_TCPCS | CP_TX_LGSEN))
2077 DEBUG_PRINT(("RTL8139: +++ C+ mode offloaded task checksum\n"));
2079 #define ETH_P_IP 0x0800 /* Internet Protocol packet */
2081 #define ETH_MTU 1500
2083 /* ip packet header */
2086 uint8_t ip_protocol = 0;
2087 uint16_t ip_data_len = 0;
2089 uint8_t *eth_payload_data = 0;
2090 size_t eth_payload_len = 0;
2092 int proto = be16_to_cpu(*(uint16_t *)(saved_buffer + 12));
2093 if (proto == ETH_P_IP)
2095 DEBUG_PRINT(("RTL8139: +++ C+ mode has IP packet\n"));
2098 eth_payload_data = saved_buffer + ETH_HLEN;
2099 eth_payload_len = saved_size - ETH_HLEN;
2101 ip = (ip_header*)eth_payload_data;
2103 if (IP_HEADER_VERSION(ip) != IP_HEADER_VERSION_4) {
2104 DEBUG_PRINT(("RTL8139: +++ C+ mode packet has bad IP version %d expected %d\n", IP_HEADER_VERSION(ip), IP_HEADER_VERSION_4));
2107 hlen = IP_HEADER_LENGTH(ip);
2108 ip_protocol = ip->ip_p;
2109 ip_data_len = be16_to_cpu(ip->ip_len) - hlen;
2115 if (txdw0 & CP_TX_IPCS)
2117 DEBUG_PRINT(("RTL8139: +++ C+ mode need IP checksum\n"));
2119 if (hlen<sizeof(ip_header) || hlen>eth_payload_len) {/* min header length */
2120 /* bad packet header len */
2121 /* or packet too short */
2126 ip->ip_sum = ip_checksum(ip, hlen);
2127 DEBUG_PRINT(("RTL8139: +++ C+ mode IP header len=%d checksum=%04x\n", hlen, ip->ip_sum));
2131 if ((txdw0 & CP_TX_LGSEN) && ip_protocol == IP_PROTO_TCP)
2133 #if defined (DEBUG_RTL8139)
2134 int large_send_mss = (txdw0 >> 16) & CP_TC_LGSEN_MSS_MASK;
2136 DEBUG_PRINT(("RTL8139: +++ C+ mode offloaded task TSO MTU=%d IP data %d frame data %d specified MSS=%d\n",
2137 ETH_MTU, ip_data_len, saved_size - ETH_HLEN, large_send_mss));
2139 int tcp_send_offset = 0;
2142 /* maximum IP header length is 60 bytes */
2143 uint8_t saved_ip_header[60];
2145 /* save IP header template; data area is used in tcp checksum calculation */
2146 memcpy(saved_ip_header, eth_payload_data, hlen);
2148 /* a placeholder for checksum calculation routine in tcp case */
2149 uint8_t *data_to_checksum = eth_payload_data + hlen - 12;
2150 // size_t data_to_checksum_len = eth_payload_len - hlen + 12;
2152 /* pointer to TCP header */
2153 tcp_header *p_tcp_hdr = (tcp_header*)(eth_payload_data + hlen);
2155 int tcp_hlen = TCP_HEADER_DATA_OFFSET(p_tcp_hdr);
2157 /* ETH_MTU = ip header len + tcp header len + payload */
2158 int tcp_data_len = ip_data_len - tcp_hlen;
2159 int tcp_chunk_size = ETH_MTU - hlen - tcp_hlen;
2161 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO IP data len %d TCP hlen %d TCP data len %d TCP chunk size %d\n",
2162 ip_data_len, tcp_hlen, tcp_data_len, tcp_chunk_size));
2164 /* note the cycle below overwrites IP header data,
2165 but restores it from saved_ip_header before sending packet */
2167 int is_last_frame = 0;
2169 for (tcp_send_offset = 0; tcp_send_offset < tcp_data_len; tcp_send_offset += tcp_chunk_size)
2171 uint16_t chunk_size = tcp_chunk_size;
2173 /* check if this is the last frame */
2174 if (tcp_send_offset + tcp_chunk_size >= tcp_data_len)
2177 chunk_size = tcp_data_len - tcp_send_offset;
2180 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO TCP seqno %08x\n", be32_to_cpu(p_tcp_hdr->th_seq)));
2182 /* add 4 TCP pseudoheader fields */
2183 /* copy IP source and destination fields */
2184 memcpy(data_to_checksum, saved_ip_header + 12, 8);
2186 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO calculating TCP checksum for packet with %d bytes data\n", tcp_hlen + chunk_size));
2188 if (tcp_send_offset)
2190 memcpy((uint8_t*)p_tcp_hdr + tcp_hlen, (uint8_t*)p_tcp_hdr + tcp_hlen + tcp_send_offset, chunk_size);
2193 /* keep PUSH and FIN flags only for the last frame */
2196 TCP_HEADER_CLEAR_FLAGS(p_tcp_hdr, TCP_FLAG_PUSH|TCP_FLAG_FIN);
2199 /* recalculate TCP checksum */
2200 ip_pseudo_header *p_tcpip_hdr = (ip_pseudo_header *)data_to_checksum;
2201 p_tcpip_hdr->zeros = 0;
2202 p_tcpip_hdr->ip_proto = IP_PROTO_TCP;
2203 p_tcpip_hdr->ip_payload = cpu_to_be16(tcp_hlen + chunk_size);
2205 p_tcp_hdr->th_sum = 0;
2207 int tcp_checksum = ip_checksum(data_to_checksum, tcp_hlen + chunk_size + 12);
2208 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO TCP checksum %04x\n", tcp_checksum));
2210 p_tcp_hdr->th_sum = tcp_checksum;
2212 /* restore IP header */
2213 memcpy(eth_payload_data, saved_ip_header, hlen);
2215 /* set IP data length and recalculate IP checksum */
2216 ip->ip_len = cpu_to_be16(hlen + tcp_hlen + chunk_size);
2218 /* increment IP id for subsequent frames */
2219 ip->ip_id = cpu_to_be16(tcp_send_offset/tcp_chunk_size + be16_to_cpu(ip->ip_id));
2222 ip->ip_sum = ip_checksum(eth_payload_data, hlen);
2223 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO IP header len=%d checksum=%04x\n", hlen, ip->ip_sum));
2225 int tso_send_size = ETH_HLEN + hlen + tcp_hlen + chunk_size;
2226 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO transferring packet size %d\n", tso_send_size));
2227 rtl8139_transfer_frame(s, saved_buffer, tso_send_size, 0);
2229 /* add transferred count to TCP sequence number */
2230 p_tcp_hdr->th_seq = cpu_to_be32(chunk_size + be32_to_cpu(p_tcp_hdr->th_seq));
2234 /* Stop sending this frame */
2237 else if (txdw0 & (CP_TX_TCPCS|CP_TX_UDPCS))
2239 DEBUG_PRINT(("RTL8139: +++ C+ mode need TCP or UDP checksum\n"));
2241 /* maximum IP header length is 60 bytes */
2242 uint8_t saved_ip_header[60];
2243 memcpy(saved_ip_header, eth_payload_data, hlen);
2245 uint8_t *data_to_checksum = eth_payload_data + hlen - 12;
2246 // size_t data_to_checksum_len = eth_payload_len - hlen + 12;
2248 /* add 4 TCP pseudoheader fields */
2249 /* copy IP source and destination fields */
2250 memcpy(data_to_checksum, saved_ip_header + 12, 8);
2252 if ((txdw0 & CP_TX_TCPCS) && ip_protocol == IP_PROTO_TCP)
2254 DEBUG_PRINT(("RTL8139: +++ C+ mode calculating TCP checksum for packet with %d bytes data\n", ip_data_len));
2256 ip_pseudo_header *p_tcpip_hdr = (ip_pseudo_header *)data_to_checksum;
2257 p_tcpip_hdr->zeros = 0;
2258 p_tcpip_hdr->ip_proto = IP_PROTO_TCP;
2259 p_tcpip_hdr->ip_payload = cpu_to_be16(ip_data_len);
2261 tcp_header* p_tcp_hdr = (tcp_header *) (data_to_checksum+12);
2263 p_tcp_hdr->th_sum = 0;
2265 int tcp_checksum = ip_checksum(data_to_checksum, ip_data_len + 12);
2266 DEBUG_PRINT(("RTL8139: +++ C+ mode TCP checksum %04x\n", tcp_checksum));
2268 p_tcp_hdr->th_sum = tcp_checksum;
2270 else if ((txdw0 & CP_TX_UDPCS) && ip_protocol == IP_PROTO_UDP)
2272 DEBUG_PRINT(("RTL8139: +++ C+ mode calculating UDP checksum for packet with %d bytes data\n", ip_data_len));
2274 ip_pseudo_header *p_udpip_hdr = (ip_pseudo_header *)data_to_checksum;
2275 p_udpip_hdr->zeros = 0;
2276 p_udpip_hdr->ip_proto = IP_PROTO_UDP;
2277 p_udpip_hdr->ip_payload = cpu_to_be16(ip_data_len);
2279 udp_header *p_udp_hdr = (udp_header *) (data_to_checksum+12);
2281 p_udp_hdr->uh_sum = 0;
2283 int udp_checksum = ip_checksum(data_to_checksum, ip_data_len + 12);
2284 DEBUG_PRINT(("RTL8139: +++ C+ mode UDP checksum %04x\n", udp_checksum));
2286 p_udp_hdr->uh_sum = udp_checksum;
2289 /* restore IP header */
2290 memcpy(eth_payload_data, saved_ip_header, hlen);
2295 /* update tally counter */
2296 ++s->tally_counters.TxOk;
2298 DEBUG_PRINT(("RTL8139: +++ C+ mode transmitting %d bytes packet\n", saved_size));
2300 rtl8139_transfer_frame(s, saved_buffer, saved_size, 1);
2302 /* restore card space if there was no recursion and reset offset */
2303 if (!s->cplus_txbuffer)
2305 s->cplus_txbuffer = saved_buffer;
2306 s->cplus_txbuffer_len = saved_buffer_len;
2307 s->cplus_txbuffer_offset = 0;
2316 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission continue to next descriptor\n"));
2322 static void rtl8139_cplus_transmit(RTL8139State *s)
2326 while (rtl8139_cplus_transmit_one(s))
2331 /* Mark transfer completed */
2334 DEBUG_PRINT(("RTL8139: C+ mode : transmitter queue stalled, current TxDesc = %d\n",
2335 s->currCPlusTxDesc));
2339 /* update interrupt status */
2340 s->IntrStatus |= TxOK;
2341 rtl8139_update_irq(s);
2345 static void rtl8139_transmit(RTL8139State *s)
2347 int descriptor = s->currTxDesc, txcount = 0;
2350 if (rtl8139_transmit_one(s, descriptor))
2357 /* Mark transfer completed */
2360 DEBUG_PRINT(("RTL8139: transmitter queue stalled, current TxDesc = %d\n", s->currTxDesc));
2364 static void rtl8139_TxStatus_write(RTL8139State *s, uint32_t txRegOffset, uint32_t val)
2367 int descriptor = txRegOffset/4;
2369 /* handle C+ transmit mode register configuration */
2371 if (rtl8139_cp_transmitter_enabled(s))
2373 DEBUG_PRINT(("RTL8139C+ DTCCR write offset=0x%x val=0x%08x descriptor=%d\n", txRegOffset, val, descriptor));
2375 /* handle Dump Tally Counters command */
2376 s->TxStatus[descriptor] = val;
2378 if (descriptor == 0 && (val & 0x8))
2380 target_phys_addr_t tc_addr = rtl8139_addr64(s->TxStatus[0] & ~0x3f, s->TxStatus[1]);
2382 /* dump tally counters to specified memory location */
2383 RTL8139TallyCounters_physical_memory_write( tc_addr, &s->tally_counters);
2385 /* mark dump completed */
2386 s->TxStatus[0] &= ~0x8;
2392 DEBUG_PRINT(("RTL8139: TxStatus write offset=0x%x val=0x%08x descriptor=%d\n", txRegOffset, val, descriptor));
2394 /* mask only reserved bits */
2395 val &= ~0xff00c000; /* these bits are reset on write */
2396 val = SET_MASKED(val, 0x00c00000, s->TxStatus[descriptor]);
2398 s->TxStatus[descriptor] = val;
2400 /* attempt to start transmission */
2401 rtl8139_transmit(s);
2404 static uint32_t rtl8139_TxStatus_read(RTL8139State *s, uint32_t txRegOffset)
2406 uint32_t ret = s->TxStatus[txRegOffset/4];
2408 DEBUG_PRINT(("RTL8139: TxStatus read offset=0x%x val=0x%08x\n", txRegOffset, ret));
2413 static uint16_t rtl8139_TSAD_read(RTL8139State *s)
2417 /* Simulate TSAD, it is read only anyway */
2419 ret = ((s->TxStatus[3] & TxStatOK )?TSAD_TOK3:0)
2420 |((s->TxStatus[2] & TxStatOK )?TSAD_TOK2:0)
2421 |((s->TxStatus[1] & TxStatOK )?TSAD_TOK1:0)
2422 |((s->TxStatus[0] & TxStatOK )?TSAD_TOK0:0)
2424 |((s->TxStatus[3] & TxUnderrun)?TSAD_TUN3:0)
2425 |((s->TxStatus[2] & TxUnderrun)?TSAD_TUN2:0)
2426 |((s->TxStatus[1] & TxUnderrun)?TSAD_TUN1:0)
2427 |((s->TxStatus[0] & TxUnderrun)?TSAD_TUN0:0)
2429 |((s->TxStatus[3] & TxAborted )?TSAD_TABT3:0)
2430 |((s->TxStatus[2] & TxAborted )?TSAD_TABT2:0)
2431 |((s->TxStatus[1] & TxAborted )?TSAD_TABT1:0)
2432 |((s->TxStatus[0] & TxAborted )?TSAD_TABT0:0)
2434 |((s->TxStatus[3] & TxHostOwns )?TSAD_OWN3:0)
2435 |((s->TxStatus[2] & TxHostOwns )?TSAD_OWN2:0)
2436 |((s->TxStatus[1] & TxHostOwns )?TSAD_OWN1:0)
2437 |((s->TxStatus[0] & TxHostOwns )?TSAD_OWN0:0) ;
2440 DEBUG_PRINT(("RTL8139: TSAD read val=0x%04x\n", ret));
2445 static uint16_t rtl8139_CSCR_read(RTL8139State *s)
2447 uint16_t ret = s->CSCR;
2449 DEBUG_PRINT(("RTL8139: CSCR read val=0x%04x\n", ret));
2454 static void rtl8139_TxAddr_write(RTL8139State *s, uint32_t txAddrOffset, uint32_t val)
2456 DEBUG_PRINT(("RTL8139: TxAddr write offset=0x%x val=0x%08x\n", txAddrOffset, val));
2458 s->TxAddr[txAddrOffset/4] = le32_to_cpu(val);
2461 static uint32_t rtl8139_TxAddr_read(RTL8139State *s, uint32_t txAddrOffset)
2463 uint32_t ret = cpu_to_le32(s->TxAddr[txAddrOffset/4]);
2465 DEBUG_PRINT(("RTL8139: TxAddr read offset=0x%x val=0x%08x\n", txAddrOffset, ret));
2470 static void rtl8139_RxBufPtr_write(RTL8139State *s, uint32_t val)
2472 DEBUG_PRINT(("RTL8139: RxBufPtr write val=0x%04x\n", val));
2474 /* this value is off by 16 */
2475 s->RxBufPtr = MOD2(val + 0x10, s->RxBufferSize);
2477 DEBUG_PRINT((" CAPR write: rx buffer length %d head 0x%04x read 0x%04x\n",
2478 s->RxBufferSize, s->RxBufAddr, s->RxBufPtr));
2481 static uint32_t rtl8139_RxBufPtr_read(RTL8139State *s)
2483 /* this value is off by 16 */
2484 uint32_t ret = s->RxBufPtr - 0x10;
2486 DEBUG_PRINT(("RTL8139: RxBufPtr read val=0x%04x\n", ret));
2491 static uint32_t rtl8139_RxBufAddr_read(RTL8139State *s)
2493 /* this value is NOT off by 16 */
2494 uint32_t ret = s->RxBufAddr;
2496 DEBUG_PRINT(("RTL8139: RxBufAddr read val=0x%04x\n", ret));
2501 static void rtl8139_RxBuf_write(RTL8139State *s, uint32_t val)
2503 DEBUG_PRINT(("RTL8139: RxBuf write val=0x%08x\n", val));
2507 /* may need to reset rxring here */
2510 static uint32_t rtl8139_RxBuf_read(RTL8139State *s)
2512 uint32_t ret = s->RxBuf;
2514 DEBUG_PRINT(("RTL8139: RxBuf read val=0x%08x\n", ret));
2519 static void rtl8139_IntrMask_write(RTL8139State *s, uint32_t val)
2521 DEBUG_PRINT(("RTL8139: IntrMask write(w) val=0x%04x\n", val));
2523 /* mask unwriteable bits */
2524 val = SET_MASKED(val, 0x1e00, s->IntrMask);
2528 rtl8139_update_irq(s);
2531 static uint32_t rtl8139_IntrMask_read(RTL8139State *s)
2533 uint32_t ret = s->IntrMask;
2535 DEBUG_PRINT(("RTL8139: IntrMask read(w) val=0x%04x\n", ret));
2540 static void rtl8139_IntrStatus_write(RTL8139State *s, uint32_t val)
2542 DEBUG_PRINT(("RTL8139: IntrStatus write(w) val=0x%04x\n", val));
2546 /* writing to ISR has no effect */
2551 uint16_t newStatus = s->IntrStatus & ~val;
2553 /* mask unwriteable bits */
2554 newStatus = SET_MASKED(newStatus, 0x1e00, s->IntrStatus);
2556 /* writing 1 to interrupt status register bit clears it */
2558 rtl8139_update_irq(s);
2560 s->IntrStatus = newStatus;
2561 rtl8139_update_irq(s);
2565 static uint32_t rtl8139_IntrStatus_read(RTL8139State *s)
2567 uint32_t ret = s->IntrStatus;
2569 DEBUG_PRINT(("RTL8139: IntrStatus read(w) val=0x%04x\n", ret));
2573 /* reading ISR clears all interrupts */
2576 rtl8139_update_irq(s);
2583 static void rtl8139_MultiIntr_write(RTL8139State *s, uint32_t val)
2585 DEBUG_PRINT(("RTL8139: MultiIntr write(w) val=0x%04x\n", val));
2587 /* mask unwriteable bits */
2588 val = SET_MASKED(val, 0xf000, s->MultiIntr);
2593 static uint32_t rtl8139_MultiIntr_read(RTL8139State *s)
2595 uint32_t ret = s->MultiIntr;
2597 DEBUG_PRINT(("RTL8139: MultiIntr read(w) val=0x%04x\n", ret));
2602 static void rtl8139_io_writeb(void *opaque, uint8_t addr, uint32_t val)
2604 RTL8139State *s = opaque;
2610 case MAC0 ... MAC0+5:
2611 s->phys[addr - MAC0] = val;
2613 case MAC0+6 ... MAC0+7:
2616 case MAR0 ... MAR0+7:
2617 s->mult[addr - MAR0] = val;
2620 rtl8139_ChipCmd_write(s, val);
2623 rtl8139_Cfg9346_write(s, val);
2625 case TxConfig: /* windows driver sometimes writes using byte-lenth call */
2626 rtl8139_TxConfig_writeb(s, val);
2629 rtl8139_Config0_write(s, val);
2632 rtl8139_Config1_write(s, val);
2635 rtl8139_Config3_write(s, val);
2638 rtl8139_Config4_write(s, val);
2641 rtl8139_Config5_write(s, val);
2645 DEBUG_PRINT(("RTL8139: not implemented write(b) to MediaStatus val=0x%02x\n", val));
2649 DEBUG_PRINT(("RTL8139: HltClk write val=0x%08x\n", val));
2652 s->clock_enabled = 1;
2654 else if (val == 'H')
2656 s->clock_enabled = 0;
2661 DEBUG_PRINT(("RTL8139C+ TxThresh write(b) val=0x%02x\n", val));
2666 DEBUG_PRINT(("RTL8139C+ TxPoll write(b) val=0x%02x\n", val));
2669 DEBUG_PRINT(("RTL8139C+ TxPoll high priority transmission (not implemented)\n"));
2670 //rtl8139_cplus_transmit(s);
2674 DEBUG_PRINT(("RTL8139C+ TxPoll normal priority transmission\n"));
2675 rtl8139_cplus_transmit(s);
2681 DEBUG_PRINT(("RTL8139: not implemented write(b) addr=0x%x val=0x%02x\n", addr, val));
2686 static void rtl8139_io_writew(void *opaque, uint8_t addr, uint32_t val)
2688 RTL8139State *s = opaque;
2695 rtl8139_IntrMask_write(s, val);
2699 rtl8139_IntrStatus_write(s, val);
2703 rtl8139_MultiIntr_write(s, val);
2707 rtl8139_RxBufPtr_write(s, val);
2711 rtl8139_BasicModeCtrl_write(s, val);
2713 case BasicModeStatus:
2714 rtl8139_BasicModeStatus_write(s, val);
2717 DEBUG_PRINT(("RTL8139: NWayAdvert write(w) val=0x%04x\n", val));
2718 s->NWayAdvert = val;
2721 DEBUG_PRINT(("RTL8139: forbidden NWayLPAR write(w) val=0x%04x\n", val));
2724 DEBUG_PRINT(("RTL8139: NWayExpansion write(w) val=0x%04x\n", val));
2725 s->NWayExpansion = val;
2729 rtl8139_CpCmd_write(s, val);
2733 rtl8139_IntrMitigate_write(s, val);
2737 DEBUG_PRINT(("RTL8139: ioport write(w) addr=0x%x val=0x%04x via write(b)\n", addr, val));
2739 #ifdef TARGET_WORDS_BIGENDIAN
2740 rtl8139_io_writeb(opaque, addr, (val >> 8) & 0xff);
2741 rtl8139_io_writeb(opaque, addr + 1, val & 0xff);
2743 rtl8139_io_writeb(opaque, addr, val & 0xff);
2744 rtl8139_io_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2750 static void rtl8139_io_writel(void *opaque, uint8_t addr, uint32_t val)
2752 RTL8139State *s = opaque;
2759 DEBUG_PRINT(("RTL8139: RxMissed clearing on write\n"));
2764 rtl8139_TxConfig_write(s, val);
2768 rtl8139_RxConfig_write(s, val);
2771 case TxStatus0 ... TxStatus0+4*4-1:
2772 rtl8139_TxStatus_write(s, addr-TxStatus0, val);
2775 case TxAddr0 ... TxAddr0+4*4-1:
2776 rtl8139_TxAddr_write(s, addr-TxAddr0, val);
2780 rtl8139_RxBuf_write(s, val);
2784 DEBUG_PRINT(("RTL8139: C+ RxRing low bits write val=0x%08x\n", val));
2785 s->RxRingAddrLO = val;
2789 DEBUG_PRINT(("RTL8139: C+ RxRing high bits write val=0x%08x\n", val));
2790 s->RxRingAddrHI = val;
2794 DEBUG_PRINT(("RTL8139: TCTR Timer reset on write\n"));
2796 s->TCTR_base = qemu_get_clock(vm_clock);
2800 DEBUG_PRINT(("RTL8139: FlashReg TimerInt write val=0x%08x\n", val));
2805 DEBUG_PRINT(("RTL8139: ioport write(l) addr=0x%x val=0x%08x via write(b)\n", addr, val));
2806 #ifdef TARGET_WORDS_BIGENDIAN
2807 rtl8139_io_writeb(opaque, addr, (val >> 24) & 0xff);
2808 rtl8139_io_writeb(opaque, addr + 1, (val >> 16) & 0xff);
2809 rtl8139_io_writeb(opaque, addr + 2, (val >> 8) & 0xff);
2810 rtl8139_io_writeb(opaque, addr + 3, val & 0xff);
2812 rtl8139_io_writeb(opaque, addr, val & 0xff);
2813 rtl8139_io_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2814 rtl8139_io_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2815 rtl8139_io_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2821 static uint32_t rtl8139_io_readb(void *opaque, uint8_t addr)
2823 RTL8139State *s = opaque;
2830 case MAC0 ... MAC0+5:
2831 ret = s->phys[addr - MAC0];
2833 case MAC0+6 ... MAC0+7:
2836 case MAR0 ... MAR0+7:
2837 ret = s->mult[addr - MAR0];
2840 ret = rtl8139_ChipCmd_read(s);
2843 ret = rtl8139_Cfg9346_read(s);
2846 ret = rtl8139_Config0_read(s);
2849 ret = rtl8139_Config1_read(s);
2852 ret = rtl8139_Config3_read(s);
2855 ret = rtl8139_Config4_read(s);
2858 ret = rtl8139_Config5_read(s);
2863 DEBUG_PRINT(("RTL8139: MediaStatus read 0x%x\n", ret));
2867 ret = s->clock_enabled;
2868 DEBUG_PRINT(("RTL8139: HltClk read 0x%x\n", ret));
2872 ret = RTL8139_PCI_REVID;
2873 DEBUG_PRINT(("RTL8139: PCI Revision ID read 0x%x\n", ret));
2878 DEBUG_PRINT(("RTL8139C+ TxThresh read(b) val=0x%02x\n", ret));
2881 case 0x43: /* Part of TxConfig register. Windows driver tries to read it */
2882 ret = s->TxConfig >> 24;
2883 DEBUG_PRINT(("RTL8139C TxConfig at 0x43 read(b) val=0x%02x\n", ret));
2887 DEBUG_PRINT(("RTL8139: not implemented read(b) addr=0x%x\n", addr));
2895 static uint32_t rtl8139_io_readw(void *opaque, uint8_t addr)
2897 RTL8139State *s = opaque;
2900 addr &= 0xfe; /* mask lower bit */
2905 ret = rtl8139_IntrMask_read(s);
2909 ret = rtl8139_IntrStatus_read(s);
2913 ret = rtl8139_MultiIntr_read(s);
2917 ret = rtl8139_RxBufPtr_read(s);
2921 ret = rtl8139_RxBufAddr_read(s);
2925 ret = rtl8139_BasicModeCtrl_read(s);
2927 case BasicModeStatus:
2928 ret = rtl8139_BasicModeStatus_read(s);
2931 ret = s->NWayAdvert;
2932 DEBUG_PRINT(("RTL8139: NWayAdvert read(w) val=0x%04x\n", ret));
2936 DEBUG_PRINT(("RTL8139: NWayLPAR read(w) val=0x%04x\n", ret));
2939 ret = s->NWayExpansion;
2940 DEBUG_PRINT(("RTL8139: NWayExpansion read(w) val=0x%04x\n", ret));
2944 ret = rtl8139_CpCmd_read(s);
2948 ret = rtl8139_IntrMitigate_read(s);
2952 ret = rtl8139_TSAD_read(s);
2956 ret = rtl8139_CSCR_read(s);
2960 DEBUG_PRINT(("RTL8139: ioport read(w) addr=0x%x via read(b)\n", addr));
2962 #ifdef TARGET_WORDS_BIGENDIAN
2963 ret = rtl8139_io_readb(opaque, addr) << 8;
2964 ret |= rtl8139_io_readb(opaque, addr + 1);
2966 ret = rtl8139_io_readb(opaque, addr);
2967 ret |= rtl8139_io_readb(opaque, addr + 1) << 8;
2970 DEBUG_PRINT(("RTL8139: ioport read(w) addr=0x%x val=0x%04x\n", addr, ret));
2977 static uint32_t rtl8139_io_readl(void *opaque, uint8_t addr)
2979 RTL8139State *s = opaque;
2982 addr &= 0xfc; /* also mask low 2 bits */
2989 DEBUG_PRINT(("RTL8139: RxMissed read val=0x%08x\n", ret));
2993 ret = rtl8139_TxConfig_read(s);
2997 ret = rtl8139_RxConfig_read(s);
3000 case TxStatus0 ... TxStatus0+4*4-1:
3001 ret = rtl8139_TxStatus_read(s, addr-TxStatus0);
3004 case TxAddr0 ... TxAddr0+4*4-1:
3005 ret = rtl8139_TxAddr_read(s, addr-TxAddr0);
3009 ret = rtl8139_RxBuf_read(s);
3013 ret = s->RxRingAddrLO;
3014 DEBUG_PRINT(("RTL8139: C+ RxRing low bits read val=0x%08x\n", ret));
3018 ret = s->RxRingAddrHI;
3019 DEBUG_PRINT(("RTL8139: C+ RxRing high bits read val=0x%08x\n", ret));
3024 DEBUG_PRINT(("RTL8139: TCTR Timer read val=0x%08x\n", ret));
3029 DEBUG_PRINT(("RTL8139: FlashReg TimerInt read val=0x%08x\n", ret));
3033 DEBUG_PRINT(("RTL8139: ioport read(l) addr=0x%x via read(b)\n", addr));
3035 #ifdef TARGET_WORDS_BIGENDIAN
3036 ret = rtl8139_io_readb(opaque, addr) << 24;
3037 ret |= rtl8139_io_readb(opaque, addr + 1) << 16;
3038 ret |= rtl8139_io_readb(opaque, addr + 2) << 8;
3039 ret |= rtl8139_io_readb(opaque, addr + 3);
3041 ret = rtl8139_io_readb(opaque, addr);
3042 ret |= rtl8139_io_readb(opaque, addr + 1) << 8;
3043 ret |= rtl8139_io_readb(opaque, addr + 2) << 16;
3044 ret |= rtl8139_io_readb(opaque, addr + 3) << 24;
3047 DEBUG_PRINT(("RTL8139: read(l) addr=0x%x val=%08x\n", addr, ret));
3056 static void rtl8139_ioport_writeb(void *opaque, uint32_t addr, uint32_t val)
3058 rtl8139_io_writeb(opaque, addr & 0xFF, val);
3061 static void rtl8139_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
3063 rtl8139_io_writew(opaque, addr & 0xFF, val);
3066 static void rtl8139_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
3068 rtl8139_io_writel(opaque, addr & 0xFF, val);
3071 static uint32_t rtl8139_ioport_readb(void *opaque, uint32_t addr)
3073 return rtl8139_io_readb(opaque, addr & 0xFF);
3076 static uint32_t rtl8139_ioport_readw(void *opaque, uint32_t addr)
3078 return rtl8139_io_readw(opaque, addr & 0xFF);
3081 static uint32_t rtl8139_ioport_readl(void *opaque, uint32_t addr)
3083 return rtl8139_io_readl(opaque, addr & 0xFF);
3088 static void rtl8139_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
3090 rtl8139_io_writeb(opaque, addr & 0xFF, val);
3093 static void rtl8139_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
3095 rtl8139_io_writew(opaque, addr & 0xFF, val);
3098 static void rtl8139_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
3100 rtl8139_io_writel(opaque, addr & 0xFF, val);
3103 static uint32_t rtl8139_mmio_readb(void *opaque, target_phys_addr_t addr)
3105 return rtl8139_io_readb(opaque, addr & 0xFF);
3108 static uint32_t rtl8139_mmio_readw(void *opaque, target_phys_addr_t addr)
3110 return rtl8139_io_readw(opaque, addr & 0xFF);
3113 static uint32_t rtl8139_mmio_readl(void *opaque, target_phys_addr_t addr)
3115 return rtl8139_io_readl(opaque, addr & 0xFF);
3120 static void rtl8139_save(QEMUFile* f,void* opaque)
3122 RTL8139State* s=(RTL8139State*)opaque;
3125 pci_device_save(s->pci_dev, f);
3127 qemu_put_buffer(f, s->phys, 6);
3128 qemu_put_buffer(f, s->mult, 8);
3132 qemu_put_be32s(f, &s->TxStatus[i]); /* TxStatus0 */
3136 qemu_put_be32s(f, &s->TxAddr[i]); /* TxAddr0 */
3139 qemu_put_be32s(f, &s->RxBuf); /* Receive buffer */
3140 qemu_put_be32s(f, &s->RxBufferSize);/* internal variable, receive ring buffer size in C mode */
3141 qemu_put_be32s(f, &s->RxBufPtr);
3142 qemu_put_be32s(f, &s->RxBufAddr);
3144 qemu_put_be16s(f, &s->IntrStatus);
3145 qemu_put_be16s(f, &s->IntrMask);
3147 qemu_put_be32s(f, &s->TxConfig);
3148 qemu_put_be32s(f, &s->RxConfig);
3149 qemu_put_be32s(f, &s->RxMissed);
3150 qemu_put_be16s(f, &s->CSCR);
3152 qemu_put_8s(f, &s->Cfg9346);
3153 qemu_put_8s(f, &s->Config0);
3154 qemu_put_8s(f, &s->Config1);
3155 qemu_put_8s(f, &s->Config3);
3156 qemu_put_8s(f, &s->Config4);
3157 qemu_put_8s(f, &s->Config5);
3159 qemu_put_8s(f, &s->clock_enabled);
3160 qemu_put_8s(f, &s->bChipCmdState);
3162 qemu_put_be16s(f, &s->MultiIntr);
3164 qemu_put_be16s(f, &s->BasicModeCtrl);
3165 qemu_put_be16s(f, &s->BasicModeStatus);
3166 qemu_put_be16s(f, &s->NWayAdvert);
3167 qemu_put_be16s(f, &s->NWayLPAR);
3168 qemu_put_be16s(f, &s->NWayExpansion);
3170 qemu_put_be16s(f, &s->CpCmd);
3171 qemu_put_8s(f, &s->TxThresh);
3173 qemu_put_be32s(f, &s->irq);
3174 qemu_put_buffer(f, s->macaddr, 6);
3175 qemu_put_be32s(f, &s->rtl8139_mmio_io_addr);
3177 qemu_put_be32s(f, &s->currTxDesc);
3178 qemu_put_be32s(f, &s->currCPlusRxDesc);
3179 qemu_put_be32s(f, &s->currCPlusTxDesc);
3180 qemu_put_be32s(f, &s->RxRingAddrLO);
3181 qemu_put_be32s(f, &s->RxRingAddrHI);
3183 for (i=0; i<EEPROM_9346_SIZE; ++i)
3185 qemu_put_be16s(f, &s->eeprom.contents[i]);
3187 qemu_put_be32s(f, &s->eeprom.mode);
3188 qemu_put_be32s(f, &s->eeprom.tick);
3189 qemu_put_8s(f, &s->eeprom.address);
3190 qemu_put_be16s(f, &s->eeprom.input);
3191 qemu_put_be16s(f, &s->eeprom.output);
3193 qemu_put_8s(f, &s->eeprom.eecs);
3194 qemu_put_8s(f, &s->eeprom.eesk);
3195 qemu_put_8s(f, &s->eeprom.eedi);
3196 qemu_put_8s(f, &s->eeprom.eedo);
3198 qemu_put_be32s(f, &s->TCTR);
3199 qemu_put_be32s(f, &s->TimerInt);
3200 qemu_put_be64s(f, &s->TCTR_base);
3202 RTL8139TallyCounters_save(f, &s->tally_counters);
3205 static int rtl8139_load(QEMUFile* f,void* opaque,int version_id)
3207 RTL8139State* s=(RTL8139State*)opaque;
3210 /* just 2 versions for now */
3214 if (version_id >= 3) {
3215 ret = pci_device_load(s->pci_dev, f);
3220 /* saved since version 1 */
3221 qemu_get_buffer(f, s->phys, 6);
3222 qemu_get_buffer(f, s->mult, 8);
3226 qemu_get_be32s(f, &s->TxStatus[i]); /* TxStatus0 */
3230 qemu_get_be32s(f, &s->TxAddr[i]); /* TxAddr0 */
3233 qemu_get_be32s(f, &s->RxBuf); /* Receive buffer */
3234 qemu_get_be32s(f, &s->RxBufferSize);/* internal variable, receive ring buffer size in C mode */
3235 qemu_get_be32s(f, &s->RxBufPtr);
3236 qemu_get_be32s(f, &s->RxBufAddr);
3238 qemu_get_be16s(f, &s->IntrStatus);
3239 qemu_get_be16s(f, &s->IntrMask);
3241 qemu_get_be32s(f, &s->TxConfig);
3242 qemu_get_be32s(f, &s->RxConfig);
3243 qemu_get_be32s(f, &s->RxMissed);
3244 qemu_get_be16s(f, &s->CSCR);
3246 qemu_get_8s(f, &s->Cfg9346);
3247 qemu_get_8s(f, &s->Config0);
3248 qemu_get_8s(f, &s->Config1);
3249 qemu_get_8s(f, &s->Config3);
3250 qemu_get_8s(f, &s->Config4);
3251 qemu_get_8s(f, &s->Config5);
3253 qemu_get_8s(f, &s->clock_enabled);
3254 qemu_get_8s(f, &s->bChipCmdState);
3256 qemu_get_be16s(f, &s->MultiIntr);
3258 qemu_get_be16s(f, &s->BasicModeCtrl);
3259 qemu_get_be16s(f, &s->BasicModeStatus);
3260 qemu_get_be16s(f, &s->NWayAdvert);
3261 qemu_get_be16s(f, &s->NWayLPAR);
3262 qemu_get_be16s(f, &s->NWayExpansion);
3264 qemu_get_be16s(f, &s->CpCmd);
3265 qemu_get_8s(f, &s->TxThresh);
3267 qemu_get_be32s(f, &s->irq);
3268 qemu_get_buffer(f, s->macaddr, 6);
3269 qemu_get_be32s(f, &s->rtl8139_mmio_io_addr);
3271 qemu_get_be32s(f, &s->currTxDesc);
3272 qemu_get_be32s(f, &s->currCPlusRxDesc);
3273 qemu_get_be32s(f, &s->currCPlusTxDesc);
3274 qemu_get_be32s(f, &s->RxRingAddrLO);
3275 qemu_get_be32s(f, &s->RxRingAddrHI);
3277 for (i=0; i<EEPROM_9346_SIZE; ++i)
3279 qemu_get_be16s(f, &s->eeprom.contents[i]);
3281 qemu_get_be32s(f, &s->eeprom.mode);
3282 qemu_get_be32s(f, &s->eeprom.tick);
3283 qemu_get_8s(f, &s->eeprom.address);
3284 qemu_get_be16s(f, &s->eeprom.input);
3285 qemu_get_be16s(f, &s->eeprom.output);
3287 qemu_get_8s(f, &s->eeprom.eecs);
3288 qemu_get_8s(f, &s->eeprom.eesk);
3289 qemu_get_8s(f, &s->eeprom.eedi);
3290 qemu_get_8s(f, &s->eeprom.eedo);
3292 /* saved since version 2 */
3293 if (version_id >= 2)
3295 qemu_get_be32s(f, &s->TCTR);
3296 qemu_get_be32s(f, &s->TimerInt);
3297 qemu_get_be64s(f, &s->TCTR_base);
3299 RTL8139TallyCounters_load(f, &s->tally_counters);
3303 /* not saved, use default */
3308 RTL8139TallyCounters_clear(&s->tally_counters);
3314 /***********************************************************/
3315 /* PCI RTL8139 definitions */
3317 typedef struct PCIRTL8139State {
3319 RTL8139State rtl8139;
3322 static void rtl8139_mmio_map(PCIDevice *pci_dev, int region_num,
3323 uint32_t addr, uint32_t size, int type)
3325 PCIRTL8139State *d = (PCIRTL8139State *)pci_dev;
3326 RTL8139State *s = &d->rtl8139;
3328 cpu_register_physical_memory(addr + 0, 0x100, s->rtl8139_mmio_io_addr);
3331 static void rtl8139_ioport_map(PCIDevice *pci_dev, int region_num,
3332 uint32_t addr, uint32_t size, int type)
3334 PCIRTL8139State *d = (PCIRTL8139State *)pci_dev;
3335 RTL8139State *s = &d->rtl8139;
3337 register_ioport_write(addr, 0x100, 1, rtl8139_ioport_writeb, s);
3338 register_ioport_read( addr, 0x100, 1, rtl8139_ioport_readb, s);
3340 register_ioport_write(addr, 0x100, 2, rtl8139_ioport_writew, s);
3341 register_ioport_read( addr, 0x100, 2, rtl8139_ioport_readw, s);
3343 register_ioport_write(addr, 0x100, 4, rtl8139_ioport_writel, s);
3344 register_ioport_read( addr, 0x100, 4, rtl8139_ioport_readl, s);
3347 static CPUReadMemoryFunc *rtl8139_mmio_read[3] = {
3353 static CPUWriteMemoryFunc *rtl8139_mmio_write[3] = {
3354 rtl8139_mmio_writeb,
3355 rtl8139_mmio_writew,
3356 rtl8139_mmio_writel,
3359 static inline int64_t rtl8139_get_next_tctr_time(RTL8139State *s, int64_t current_time)
3361 int64_t next_time = current_time +
3362 muldiv64(1, ticks_per_sec, PCI_FREQUENCY);
3363 if (next_time <= current_time)
3364 next_time = current_time + 1;
3368 #if RTL8139_ONBOARD_TIMER
3369 static void rtl8139_timer(void *opaque)
3371 RTL8139State *s = opaque;
3378 if (!s->clock_enabled)
3380 DEBUG_PRINT(("RTL8139: >>> timer: clock is not running\n"));
3384 curr_time = qemu_get_clock(vm_clock);
3386 curr_tick = muldiv64(curr_time - s->TCTR_base, PCI_FREQUENCY, ticks_per_sec);
3388 if (s->TimerInt && curr_tick >= s->TimerInt)
3390 if (s->TCTR < s->TimerInt || curr_tick < s->TCTR)
3396 s->TCTR = curr_tick;
3398 // DEBUG_PRINT(("RTL8139: >>> timer: tick=%08u\n", s->TCTR));
3402 DEBUG_PRINT(("RTL8139: >>> timer: timeout tick=%08u\n", s->TCTR));
3403 s->IntrStatus |= PCSTimeout;
3404 rtl8139_update_irq(s);
3407 qemu_mod_timer(s->timer,
3408 rtl8139_get_next_tctr_time(s,curr_time));
3410 #endif /* RTL8139_ONBOARD_TIMER */
3412 void pci_rtl8139_init(PCIBus *bus, NICInfo *nd)
3418 d = (PCIRTL8139State *)pci_register_device(bus,
3419 "RTL8139", sizeof(PCIRTL8139State),
3422 pci_conf = d->dev.config;
3423 pci_conf[0x00] = 0xec; /* Realtek 8139 */
3424 pci_conf[0x01] = 0x10;
3425 pci_conf[0x02] = 0x39;
3426 pci_conf[0x03] = 0x81;
3427 pci_conf[0x04] = 0x05; /* command = I/O space, Bus Master */
3428 pci_conf[0x08] = RTL8139_PCI_REVID; /* PCI revision ID; >=0x20 is for 8139C+ */
3429 pci_conf[0x0a] = 0x00; /* ethernet network controller */
3430 pci_conf[0x0b] = 0x02;
3431 pci_conf[0x0e] = 0x00; /* header_type */
3432 pci_conf[0x3d] = 1; /* interrupt pin 0 */
3433 pci_conf[0x34] = 0xdc;
3437 /* I/O handler for memory-mapped I/O */
3438 s->rtl8139_mmio_io_addr =
3439 cpu_register_io_memory(0, rtl8139_mmio_read, rtl8139_mmio_write, s);
3441 pci_register_io_region(&d->dev, 0, 0x100,
3442 PCI_ADDRESS_SPACE_IO, rtl8139_ioport_map);
3444 pci_register_io_region(&d->dev, 1, 0x100,
3445 PCI_ADDRESS_SPACE_MEM, rtl8139_mmio_map);
3447 s->irq = 16; /* PCI interrupt */
3448 s->pci_dev = (PCIDevice *)d;
3449 memcpy(s->macaddr, nd->macaddr, 6);
3451 s->vc = qemu_new_vlan_client(nd->vlan, rtl8139_receive,
3452 rtl8139_can_receive, s);
3454 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
3455 "rtl8139 pci macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
3463 s->cplus_txbuffer = NULL;
3464 s->cplus_txbuffer_len = 0;
3465 s->cplus_txbuffer_offset = 0;
3467 /* XXX: instance number ? */
3468 register_savevm("rtl8139", 0, 3, rtl8139_save, rtl8139_load, s);
3470 #if RTL8139_ONBOARD_TIMER
3471 s->timer = qemu_new_timer(vm_clock, rtl8139_timer, s);
3473 qemu_mod_timer(s->timer,
3474 rtl8139_get_next_tctr_time(s,qemu_get_clock(vm_clock)));
3475 #endif /* RTL8139_ONBOARD_TIMER */