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 #include "qemu-timer.h"
51 /* debug RTL8139 card */
52 //#define DEBUG_RTL8139 1
54 #define PCI_FREQUENCY 33000000L
56 /* debug RTL8139 card C+ mode only */
57 //#define DEBUG_RTL8139CP 1
59 /* Calculate CRCs properly on Rx packets */
60 #define RTL8139_CALCULATE_RXCRC 1
62 /* Uncomment to enable on-board timer interrupts */
63 //#define RTL8139_ONBOARD_TIMER 1
65 #if defined(RTL8139_CALCULATE_RXCRC)
70 #define SET_MASKED(input, mask, curr) \
71 ( ( (input) & ~(mask) ) | ( (curr) & (mask) ) )
73 /* arg % size for size which is a power of 2 */
74 #define MOD2(input, size) \
75 ( ( input ) & ( size - 1 ) )
77 #if defined (DEBUG_RTL8139)
78 # define DEBUG_PRINT(x) do { printf x ; } while (0)
80 # define DEBUG_PRINT(x)
83 /* Symbolic offsets to registers. */
84 enum RTL8139_registers {
85 MAC0 = 0, /* Ethernet hardware address. */
86 MAR0 = 8, /* Multicast filter. */
87 TxStatus0 = 0x10,/* Transmit status (Four 32bit registers). C mode only */
88 /* Dump Tally Conter control register(64bit). C+ mode only */
89 TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
98 Timer = 0x48, /* A general-purpose counter. */
99 RxMissed = 0x4C, /* 24 bits valid, write clears. */
106 Config4 = 0x5A, /* absent on RTL-8139A */
109 PCIRevisionID = 0x5E,
110 TxSummary = 0x60, /* TSAD register. Transmit Status of All Descriptors*/
111 BasicModeCtrl = 0x62,
112 BasicModeStatus = 0x64,
115 NWayExpansion = 0x6A,
116 /* Undocumented registers, but required for proper operation. */
117 FIFOTMS = 0x70, /* FIFO Control and test. */
118 CSCR = 0x74, /* Chip Status and Configuration Register. */
120 PARA7c = 0x7c, /* Magic transceiver parameter register. */
121 Config5 = 0xD8, /* absent on RTL-8139A */
123 TxPoll = 0xD9, /* Tell chip to check Tx descriptors for work */
124 RxMaxSize = 0xDA, /* Max size of an Rx packet (8169 only) */
125 CpCmd = 0xE0, /* C+ Command register (C+ mode only) */
126 IntrMitigate = 0xE2, /* rx/tx interrupt mitigation control */
127 RxRingAddrLO = 0xE4, /* 64-bit start addr of Rx ring */
128 RxRingAddrHI = 0xE8, /* 64-bit start addr of Rx ring */
129 TxThresh = 0xEC, /* Early Tx threshold */
133 MultiIntrClear = 0xF000,
135 Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
147 CPlusRxVLAN = 0x0040, /* enable receive VLAN detagging */
148 CPlusRxChkSum = 0x0020, /* enable receive checksum offloading */
153 /* Interrupt register bits, using my own meaningful names. */
154 enum IntrStatusBits {
165 RxAckBits = RxFIFOOver | RxOverflow | RxOK,
172 TxOutOfWindow = 0x20000000,
173 TxAborted = 0x40000000,
174 TxCarrierLost = 0x80000000,
177 RxMulticast = 0x8000,
179 RxBroadcast = 0x2000,
180 RxBadSymbol = 0x0020,
188 /* Bits in RxConfig. */
192 AcceptBroadcast = 0x08,
193 AcceptMulticast = 0x04,
195 AcceptAllPhys = 0x01,
198 /* Bits in TxConfig. */
199 enum tx_config_bits {
201 /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */
203 TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */
204 TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */
205 TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */
206 TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */
208 TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
209 TxCRC = (1 << 16), /* DISABLE appending CRC to end of Tx packets */
210 TxClearAbt = (1 << 0), /* Clear abort (WO) */
211 TxDMAShift = 8, /* DMA burst value (0-7) is shifted this many bits */
212 TxRetryShift = 4, /* TXRR value (0-15) is shifted this many bits */
214 TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
218 /* Transmit Status of All Descriptors (TSAD) Register */
220 TSAD_TOK3 = 1<<15, // TOK bit of Descriptor 3
221 TSAD_TOK2 = 1<<14, // TOK bit of Descriptor 2
222 TSAD_TOK1 = 1<<13, // TOK bit of Descriptor 1
223 TSAD_TOK0 = 1<<12, // TOK bit of Descriptor 0
224 TSAD_TUN3 = 1<<11, // TUN bit of Descriptor 3
225 TSAD_TUN2 = 1<<10, // TUN bit of Descriptor 2
226 TSAD_TUN1 = 1<<9, // TUN bit of Descriptor 1
227 TSAD_TUN0 = 1<<8, // TUN bit of Descriptor 0
228 TSAD_TABT3 = 1<<07, // TABT bit of Descriptor 3
229 TSAD_TABT2 = 1<<06, // TABT bit of Descriptor 2
230 TSAD_TABT1 = 1<<05, // TABT bit of Descriptor 1
231 TSAD_TABT0 = 1<<04, // TABT bit of Descriptor 0
232 TSAD_OWN3 = 1<<03, // OWN bit of Descriptor 3
233 TSAD_OWN2 = 1<<02, // OWN bit of Descriptor 2
234 TSAD_OWN1 = 1<<01, // OWN bit of Descriptor 1
235 TSAD_OWN0 = 1<<00, // OWN bit of Descriptor 0
239 /* Bits in Config1 */
241 Cfg1_PM_Enable = 0x01,
242 Cfg1_VPD_Enable = 0x02,
245 LWAKE = 0x10, /* not on 8139, 8139A */
246 Cfg1_Driver_Load = 0x20,
249 SLEEP = (1 << 1), /* only on 8139, 8139A */
250 PWRDN = (1 << 0), /* only on 8139, 8139A */
253 /* Bits in Config3 */
255 Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */
256 Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */
257 Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */
258 Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */
259 Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */
260 Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */
261 Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */
262 Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */
265 /* Bits in Config4 */
267 LWPTN = (1 << 2), /* not on 8139, 8139A */
270 /* Bits in Config5 */
272 Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */
273 Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */
274 Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */
275 Cfg5_FIFOAddrPtr = (1 << 3), /* Realtek internal SRAM testing */
276 Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */
277 Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */
278 Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */
282 /* rx fifo threshold */
284 RxCfgFIFONone = (7 << RxCfgFIFOShift),
288 RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
290 /* rx ring buffer length */
292 RxCfgRcv16K = (1 << 11),
293 RxCfgRcv32K = (1 << 12),
294 RxCfgRcv64K = (1 << 11) | (1 << 12),
296 /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */
300 /* Twister tuning parameters from RealTek.
301 Completely undocumented, but required to tune bad links on some boards. */
304 CSCR_LinkOKBit = 0x0400,
305 CSCR_LinkChangeBit = 0x0800,
306 CSCR_LinkStatusBits = 0x0f000,
307 CSCR_LinkDownOffCmd = 0x003c0,
308 CSCR_LinkDownCmd = 0x0f3c0,
311 CSCR_Testfun = 1<<15, /* 1 = Auto-neg speeds up internal timer, WO, def 0 */
312 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*/
313 CSCR_HEART_BIT = 1<<8, /* 1 = HEART BEAT enable, 0 = HEART BEAT disable. HEART BEAT function is only valid in 10Mbps mode. def 1*/
314 CSCR_JBEN = 1<<7, /* 1 = enable jabber function. 0 = disable jabber function, def 1*/
315 CSCR_F_LINK_100 = 1<<6, /* Used to login force good link in 100Mbps for diagnostic purposes. 1 = DISABLE, 0 = ENABLE. def 1*/
316 CSCR_F_Connect = 1<<5, /* Assertion of this bit forces the disconnect function to be bypassed. def 0*/
317 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*/
318 CSCR_Con_status_En = 1<<2, /* Assertion of this bit configures LED1 pin to indicate connection status. def 0*/
319 CSCR_PASS_SCR = 1<<0, /* Bypass Scramble, def 0*/
324 Cfg9346_Unlock = 0xC0,
341 HasHltClk = (1 << 0),
345 #define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \
346 (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22)
347 #define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1)
349 #define RTL8139_PCI_REVID_8139 0x10
350 #define RTL8139_PCI_REVID_8139CPLUS 0x20
352 #define RTL8139_PCI_REVID RTL8139_PCI_REVID_8139CPLUS
354 /* Size is 64 * 16bit words */
355 #define EEPROM_9346_ADDR_BITS 6
356 #define EEPROM_9346_SIZE (1 << EEPROM_9346_ADDR_BITS)
357 #define EEPROM_9346_ADDR_MASK (EEPROM_9346_SIZE - 1)
359 enum Chip9346Operation
361 Chip9346_op_mask = 0xc0, /* 10 zzzzzz */
362 Chip9346_op_read = 0x80, /* 10 AAAAAA */
363 Chip9346_op_write = 0x40, /* 01 AAAAAA D(15)..D(0) */
364 Chip9346_op_ext_mask = 0xf0, /* 11 zzzzzz */
365 Chip9346_op_write_enable = 0x30, /* 00 11zzzz */
366 Chip9346_op_write_all = 0x10, /* 00 01zzzz */
367 Chip9346_op_write_disable = 0x00, /* 00 00zzzz */
373 Chip9346_enter_command_mode,
374 Chip9346_read_command,
375 Chip9346_data_read, /* from output register */
376 Chip9346_data_write, /* to input register, then to contents at specified address */
377 Chip9346_data_write_all, /* to input register, then filling contents */
380 typedef struct EEprom9346
382 uint16_t contents[EEPROM_9346_SIZE];
395 typedef struct RTL8139TallyCounters
411 } RTL8139TallyCounters;
413 /* Clears all tally counters */
414 static void RTL8139TallyCounters_clear(RTL8139TallyCounters* counters);
416 /* Writes tally counters to specified physical memory address */
417 static void RTL8139TallyCounters_physical_memory_write(target_phys_addr_t tc_addr, RTL8139TallyCounters* counters);
419 /* Loads values of tally counters from VM state file */
420 static void RTL8139TallyCounters_load(QEMUFile* f, RTL8139TallyCounters *tally_counters);
422 /* Saves values of tally counters to VM state file */
423 static void RTL8139TallyCounters_save(QEMUFile* f, RTL8139TallyCounters *tally_counters);
425 typedef struct RTL8139State {
426 uint8_t phys[8]; /* mac address */
427 uint8_t mult[8]; /* multicast mask array */
429 uint32_t TxStatus[4]; /* TxStatus0 in C mode*/ /* also DTCCR[0] and DTCCR[1] in C+ mode */
430 uint32_t TxAddr[4]; /* TxAddr0 */
431 uint32_t RxBuf; /* Receive buffer */
432 uint32_t RxBufferSize;/* internal variable, receive ring buffer size in C mode */
452 uint8_t clock_enabled;
453 uint8_t bChipCmdState;
457 uint16_t BasicModeCtrl;
458 uint16_t BasicModeStatus;
461 uint16_t NWayExpansion;
469 int rtl8139_mmio_io_addr;
475 uint32_t currCPlusRxDesc;
476 uint32_t currCPlusTxDesc;
478 uint32_t RxRingAddrLO;
479 uint32_t RxRingAddrHI;
488 RTL8139TallyCounters tally_counters;
490 /* Non-persistent data */
491 uint8_t *cplus_txbuffer;
492 int cplus_txbuffer_len;
493 int cplus_txbuffer_offset;
495 /* PCI interrupt timer */
500 static void prom9346_decode_command(EEprom9346 *eeprom, uint8_t command)
502 DEBUG_PRINT(("RTL8139: eeprom command 0x%02x\n", command));
504 switch (command & Chip9346_op_mask)
506 case Chip9346_op_read:
508 eeprom->address = command & EEPROM_9346_ADDR_MASK;
509 eeprom->output = eeprom->contents[eeprom->address];
512 eeprom->mode = Chip9346_data_read;
513 DEBUG_PRINT(("RTL8139: eeprom read from address 0x%02x data=0x%04x\n",
514 eeprom->address, eeprom->output));
518 case Chip9346_op_write:
520 eeprom->address = command & EEPROM_9346_ADDR_MASK;
523 eeprom->mode = Chip9346_none; /* Chip9346_data_write */
524 DEBUG_PRINT(("RTL8139: eeprom begin write to address 0x%02x\n",
529 eeprom->mode = Chip9346_none;
530 switch (command & Chip9346_op_ext_mask)
532 case Chip9346_op_write_enable:
533 DEBUG_PRINT(("RTL8139: eeprom write enabled\n"));
535 case Chip9346_op_write_all:
536 DEBUG_PRINT(("RTL8139: eeprom begin write all\n"));
538 case Chip9346_op_write_disable:
539 DEBUG_PRINT(("RTL8139: eeprom write disabled\n"));
546 static void prom9346_shift_clock(EEprom9346 *eeprom)
548 int bit = eeprom->eedi?1:0;
552 DEBUG_PRINT(("eeprom: tick %d eedi=%d eedo=%d\n", eeprom->tick, eeprom->eedi, eeprom->eedo));
554 switch (eeprom->mode)
556 case Chip9346_enter_command_mode:
559 eeprom->mode = Chip9346_read_command;
562 DEBUG_PRINT(("eeprom: +++ synchronized, begin command read\n"));
566 case Chip9346_read_command:
567 eeprom->input = (eeprom->input << 1) | (bit & 1);
568 if (eeprom->tick == 8)
570 prom9346_decode_command(eeprom, eeprom->input & 0xff);
574 case Chip9346_data_read:
575 eeprom->eedo = (eeprom->output & 0x8000)?1:0;
576 eeprom->output <<= 1;
577 if (eeprom->tick == 16)
580 // the FreeBSD drivers (rl and re) don't explicitly toggle
581 // CS between reads (or does setting Cfg9346 to 0 count too?),
582 // so we need to enter wait-for-command state here
583 eeprom->mode = Chip9346_enter_command_mode;
587 DEBUG_PRINT(("eeprom: +++ end of read, awaiting next command\n"));
589 // original behaviour
591 eeprom->address &= EEPROM_9346_ADDR_MASK;
592 eeprom->output = eeprom->contents[eeprom->address];
595 DEBUG_PRINT(("eeprom: +++ read next address 0x%02x data=0x%04x\n",
596 eeprom->address, eeprom->output));
601 case Chip9346_data_write:
602 eeprom->input = (eeprom->input << 1) | (bit & 1);
603 if (eeprom->tick == 16)
605 DEBUG_PRINT(("RTL8139: eeprom write to address 0x%02x data=0x%04x\n",
606 eeprom->address, eeprom->input));
608 eeprom->contents[eeprom->address] = eeprom->input;
609 eeprom->mode = Chip9346_none; /* waiting for next command after CS cycle */
615 case Chip9346_data_write_all:
616 eeprom->input = (eeprom->input << 1) | (bit & 1);
617 if (eeprom->tick == 16)
620 for (i = 0; i < EEPROM_9346_SIZE; i++)
622 eeprom->contents[i] = eeprom->input;
624 DEBUG_PRINT(("RTL8139: eeprom filled with data=0x%04x\n",
627 eeprom->mode = Chip9346_enter_command_mode;
638 static int prom9346_get_wire(RTL8139State *s)
640 EEprom9346 *eeprom = &s->eeprom;
647 /* FIXME: This should be merged into/replaced by eeprom93xx.c. */
648 static void prom9346_set_wire(RTL8139State *s, int eecs, int eesk, int eedi)
650 EEprom9346 *eeprom = &s->eeprom;
651 uint8_t old_eecs = eeprom->eecs;
652 uint8_t old_eesk = eeprom->eesk;
658 DEBUG_PRINT(("eeprom: +++ wires CS=%d SK=%d DI=%d DO=%d\n",
659 eeprom->eecs, eeprom->eesk, eeprom->eedi, eeprom->eedo));
661 if (!old_eecs && eecs)
663 /* Synchronize start */
667 eeprom->mode = Chip9346_enter_command_mode;
669 DEBUG_PRINT(("=== eeprom: begin access, enter command mode\n"));
674 DEBUG_PRINT(("=== eeprom: end access\n"));
678 if (!old_eesk && eesk)
681 prom9346_shift_clock(eeprom);
685 static void rtl8139_update_irq(RTL8139State *s)
688 isr = (s->IntrStatus & s->IntrMask) & 0xffff;
690 DEBUG_PRINT(("RTL8139: Set IRQ to %d (%04x %04x)\n",
691 isr ? 1 : 0, s->IntrStatus, s->IntrMask));
693 qemu_set_irq(s->pci_dev->irq[0], (isr != 0));
696 #define POLYNOMIAL 0x04c11db6
700 static int compute_mcast_idx(const uint8_t *ep)
707 for (i = 0; i < 6; i++) {
709 for (j = 0; j < 8; j++) {
710 carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01);
714 crc = ((crc ^ POLYNOMIAL) | carry);
720 static int rtl8139_RxWrap(RTL8139State *s)
722 /* wrapping enabled; assume 1.5k more buffer space if size < 65536 */
723 return (s->RxConfig & (1 << 7));
726 static int rtl8139_receiver_enabled(RTL8139State *s)
728 return s->bChipCmdState & CmdRxEnb;
731 static int rtl8139_transmitter_enabled(RTL8139State *s)
733 return s->bChipCmdState & CmdTxEnb;
736 static int rtl8139_cp_receiver_enabled(RTL8139State *s)
738 return s->CpCmd & CPlusRxEnb;
741 static int rtl8139_cp_transmitter_enabled(RTL8139State *s)
743 return s->CpCmd & CPlusTxEnb;
746 static void rtl8139_write_buffer(RTL8139State *s, const void *buf, int size)
748 if (s->RxBufAddr + size > s->RxBufferSize)
750 int wrapped = MOD2(s->RxBufAddr + size, s->RxBufferSize);
752 /* write packet data */
753 if (wrapped && !(s->RxBufferSize < 65536 && rtl8139_RxWrap(s)))
755 DEBUG_PRINT((">>> RTL8139: rx packet wrapped in buffer at %d\n", size-wrapped));
759 cpu_physical_memory_write( s->RxBuf + s->RxBufAddr,
763 /* reset buffer pointer */
766 cpu_physical_memory_write( s->RxBuf + s->RxBufAddr,
767 buf + (size-wrapped), wrapped );
769 s->RxBufAddr = wrapped;
775 /* non-wrapping path or overwrapping enabled */
776 cpu_physical_memory_write( s->RxBuf + s->RxBufAddr, buf, size );
778 s->RxBufAddr += size;
781 #define MIN_BUF_SIZE 60
782 static inline target_phys_addr_t rtl8139_addr64(uint32_t low, uint32_t high)
784 #if TARGET_PHYS_ADDR_BITS > 32
785 return low | ((target_phys_addr_t)high << 32);
791 static int rtl8139_can_receive(void *opaque)
793 RTL8139State *s = opaque;
796 /* Receive (drop) packets if card is disabled. */
797 if (!s->clock_enabled)
799 if (!rtl8139_receiver_enabled(s))
802 if (rtl8139_cp_receiver_enabled(s)) {
803 /* ??? Flow control not implemented in c+ mode.
804 This is a hack to work around slirp deficiencies anyway. */
807 avail = MOD2(s->RxBufferSize + s->RxBufPtr - s->RxBufAddr,
809 return (avail == 0 || avail >= 1514);
813 static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int do_interrupt)
815 RTL8139State *s = opaque;
817 uint32_t packet_header = 0;
820 static const uint8_t broadcast_macaddr[6] =
821 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
823 DEBUG_PRINT((">>> RTL8139: received len=%d\n", size));
825 /* test if board clock is stopped */
826 if (!s->clock_enabled)
828 DEBUG_PRINT(("RTL8139: stopped ==========================\n"));
832 /* first check if receiver is enabled */
834 if (!rtl8139_receiver_enabled(s))
836 DEBUG_PRINT(("RTL8139: receiver disabled ================\n"));
840 /* XXX: check this */
841 if (s->RxConfig & AcceptAllPhys) {
842 /* promiscuous: receive all */
843 DEBUG_PRINT((">>> RTL8139: packet received in promiscuous mode\n"));
846 if (!memcmp(buf, broadcast_macaddr, 6)) {
847 /* broadcast address */
848 if (!(s->RxConfig & AcceptBroadcast))
850 DEBUG_PRINT((">>> RTL8139: broadcast packet rejected\n"));
852 /* update tally counter */
853 ++s->tally_counters.RxERR;
858 packet_header |= RxBroadcast;
860 DEBUG_PRINT((">>> RTL8139: broadcast packet received\n"));
862 /* update tally counter */
863 ++s->tally_counters.RxOkBrd;
865 } else if (buf[0] & 0x01) {
867 if (!(s->RxConfig & AcceptMulticast))
869 DEBUG_PRINT((">>> RTL8139: multicast packet rejected\n"));
871 /* update tally counter */
872 ++s->tally_counters.RxERR;
877 int mcast_idx = compute_mcast_idx(buf);
879 if (!(s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7))))
881 DEBUG_PRINT((">>> RTL8139: multicast address mismatch\n"));
883 /* update tally counter */
884 ++s->tally_counters.RxERR;
889 packet_header |= RxMulticast;
891 DEBUG_PRINT((">>> RTL8139: multicast packet received\n"));
893 /* update tally counter */
894 ++s->tally_counters.RxOkMul;
896 } else if (s->phys[0] == buf[0] &&
897 s->phys[1] == buf[1] &&
898 s->phys[2] == buf[2] &&
899 s->phys[3] == buf[3] &&
900 s->phys[4] == buf[4] &&
901 s->phys[5] == buf[5]) {
903 if (!(s->RxConfig & AcceptMyPhys))
905 DEBUG_PRINT((">>> RTL8139: rejecting physical address matching packet\n"));
907 /* update tally counter */
908 ++s->tally_counters.RxERR;
913 packet_header |= RxPhysical;
915 DEBUG_PRINT((">>> RTL8139: physical address matching packet received\n"));
917 /* update tally counter */
918 ++s->tally_counters.RxOkPhy;
922 DEBUG_PRINT((">>> RTL8139: unknown packet\n"));
924 /* update tally counter */
925 ++s->tally_counters.RxERR;
931 /* if too small buffer, then expand it */
932 if (size < MIN_BUF_SIZE) {
933 memcpy(buf1, buf, size);
934 memset(buf1 + size, 0, MIN_BUF_SIZE - size);
939 if (rtl8139_cp_receiver_enabled(s))
941 DEBUG_PRINT(("RTL8139: in C+ Rx mode ================\n"));
943 /* begin C+ receiver mode */
945 /* w0 ownership flag */
946 #define CP_RX_OWN (1<<31)
947 /* w0 end of ring flag */
948 #define CP_RX_EOR (1<<30)
949 /* w0 bits 0...12 : buffer size */
950 #define CP_RX_BUFFER_SIZE_MASK ((1<<13) - 1)
951 /* w1 tag available flag */
952 #define CP_RX_TAVA (1<<16)
953 /* w1 bits 0...15 : VLAN tag */
954 #define CP_RX_VLAN_TAG_MASK ((1<<16) - 1)
955 /* w2 low 32bit of Rx buffer ptr */
956 /* w3 high 32bit of Rx buffer ptr */
958 int descriptor = s->currCPlusRxDesc;
959 target_phys_addr_t cplus_rx_ring_desc;
961 cplus_rx_ring_desc = rtl8139_addr64(s->RxRingAddrLO, s->RxRingAddrHI);
962 cplus_rx_ring_desc += 16 * descriptor;
964 DEBUG_PRINT(("RTL8139: +++ C+ mode reading RX descriptor %d from host memory at %08x %08x = %016" PRIx64 "\n",
965 descriptor, s->RxRingAddrHI, s->RxRingAddrLO, (uint64_t)cplus_rx_ring_desc));
967 uint32_t val, rxdw0,rxdw1,rxbufLO,rxbufHI;
969 cpu_physical_memory_read(cplus_rx_ring_desc, (uint8_t *)&val, 4);
970 rxdw0 = le32_to_cpu(val);
971 cpu_physical_memory_read(cplus_rx_ring_desc+4, (uint8_t *)&val, 4);
972 rxdw1 = le32_to_cpu(val);
973 cpu_physical_memory_read(cplus_rx_ring_desc+8, (uint8_t *)&val, 4);
974 rxbufLO = le32_to_cpu(val);
975 cpu_physical_memory_read(cplus_rx_ring_desc+12, (uint8_t *)&val, 4);
976 rxbufHI = le32_to_cpu(val);
978 DEBUG_PRINT(("RTL8139: +++ C+ mode RX descriptor %d %08x %08x %08x %08x\n",
980 rxdw0, rxdw1, rxbufLO, rxbufHI));
982 if (!(rxdw0 & CP_RX_OWN))
984 DEBUG_PRINT(("RTL8139: C+ Rx mode : descriptor %d is owned by host\n", descriptor));
986 s->IntrStatus |= RxOverflow;
989 /* update tally counter */
990 ++s->tally_counters.RxERR;
991 ++s->tally_counters.MissPkt;
993 rtl8139_update_irq(s);
997 uint32_t rx_space = rxdw0 & CP_RX_BUFFER_SIZE_MASK;
999 /* TODO: scatter the packet over available receive ring descriptors space */
1001 if (size+4 > rx_space)
1003 DEBUG_PRINT(("RTL8139: C+ Rx mode : descriptor %d size %d received %d + 4\n",
1004 descriptor, rx_space, size));
1006 s->IntrStatus |= RxOverflow;
1009 /* update tally counter */
1010 ++s->tally_counters.RxERR;
1011 ++s->tally_counters.MissPkt;
1013 rtl8139_update_irq(s);
1017 target_phys_addr_t rx_addr = rtl8139_addr64(rxbufLO, rxbufHI);
1019 /* receive/copy to target memory */
1020 cpu_physical_memory_write( rx_addr, buf, size );
1022 if (s->CpCmd & CPlusRxChkSum)
1024 /* do some packet checksumming */
1027 /* write checksum */
1028 #if defined (RTL8139_CALCULATE_RXCRC)
1029 val = cpu_to_le32(crc32(0, buf, size));
1033 cpu_physical_memory_write( rx_addr+size, (uint8_t *)&val, 4);
1035 /* first segment of received packet flag */
1036 #define CP_RX_STATUS_FS (1<<29)
1037 /* last segment of received packet flag */
1038 #define CP_RX_STATUS_LS (1<<28)
1039 /* multicast packet flag */
1040 #define CP_RX_STATUS_MAR (1<<26)
1041 /* physical-matching packet flag */
1042 #define CP_RX_STATUS_PAM (1<<25)
1043 /* broadcast packet flag */
1044 #define CP_RX_STATUS_BAR (1<<24)
1045 /* runt packet flag */
1046 #define CP_RX_STATUS_RUNT (1<<19)
1047 /* crc error flag */
1048 #define CP_RX_STATUS_CRC (1<<18)
1049 /* IP checksum error flag */
1050 #define CP_RX_STATUS_IPF (1<<15)
1051 /* UDP checksum error flag */
1052 #define CP_RX_STATUS_UDPF (1<<14)
1053 /* TCP checksum error flag */
1054 #define CP_RX_STATUS_TCPF (1<<13)
1056 /* transfer ownership to target */
1057 rxdw0 &= ~CP_RX_OWN;
1059 /* set first segment bit */
1060 rxdw0 |= CP_RX_STATUS_FS;
1062 /* set last segment bit */
1063 rxdw0 |= CP_RX_STATUS_LS;
1065 /* set received packet type flags */
1066 if (packet_header & RxBroadcast)
1067 rxdw0 |= CP_RX_STATUS_BAR;
1068 if (packet_header & RxMulticast)
1069 rxdw0 |= CP_RX_STATUS_MAR;
1070 if (packet_header & RxPhysical)
1071 rxdw0 |= CP_RX_STATUS_PAM;
1073 /* set received size */
1074 rxdw0 &= ~CP_RX_BUFFER_SIZE_MASK;
1077 /* reset VLAN tag flag */
1078 rxdw1 &= ~CP_RX_TAVA;
1080 /* update ring data */
1081 val = cpu_to_le32(rxdw0);
1082 cpu_physical_memory_write(cplus_rx_ring_desc, (uint8_t *)&val, 4);
1083 val = cpu_to_le32(rxdw1);
1084 cpu_physical_memory_write(cplus_rx_ring_desc+4, (uint8_t *)&val, 4);
1086 /* update tally counter */
1087 ++s->tally_counters.RxOk;
1089 /* seek to next Rx descriptor */
1090 if (rxdw0 & CP_RX_EOR)
1092 s->currCPlusRxDesc = 0;
1096 ++s->currCPlusRxDesc;
1099 DEBUG_PRINT(("RTL8139: done C+ Rx mode ----------------\n"));
1104 DEBUG_PRINT(("RTL8139: in ring Rx mode ================\n"));
1106 /* begin ring receiver mode */
1107 int avail = MOD2(s->RxBufferSize + s->RxBufPtr - s->RxBufAddr, s->RxBufferSize);
1109 /* if receiver buffer is empty then avail == 0 */
1111 if (avail != 0 && size + 8 >= avail)
1113 DEBUG_PRINT(("rx overflow: rx buffer length %d head 0x%04x read 0x%04x === available 0x%04x need 0x%04x\n",
1114 s->RxBufferSize, s->RxBufAddr, s->RxBufPtr, avail, size + 8));
1116 s->IntrStatus |= RxOverflow;
1118 rtl8139_update_irq(s);
1122 packet_header |= RxStatusOK;
1124 packet_header |= (((size+4) << 16) & 0xffff0000);
1127 uint32_t val = cpu_to_le32(packet_header);
1129 rtl8139_write_buffer(s, (uint8_t *)&val, 4);
1131 rtl8139_write_buffer(s, buf, size);
1133 /* write checksum */
1134 #if defined (RTL8139_CALCULATE_RXCRC)
1135 val = cpu_to_le32(crc32(0, buf, size));
1140 rtl8139_write_buffer(s, (uint8_t *)&val, 4);
1142 /* correct buffer write pointer */
1143 s->RxBufAddr = MOD2((s->RxBufAddr + 3) & ~0x3, s->RxBufferSize);
1145 /* now we can signal we have received something */
1147 DEBUG_PRINT((" received: rx buffer length %d head 0x%04x read 0x%04x\n",
1148 s->RxBufferSize, s->RxBufAddr, s->RxBufPtr));
1151 s->IntrStatus |= RxOK;
1155 rtl8139_update_irq(s);
1159 static void rtl8139_receive(void *opaque, const uint8_t *buf, int size)
1161 rtl8139_do_receive(opaque, buf, size, 1);
1164 static void rtl8139_reset_rxring(RTL8139State *s, uint32_t bufferSize)
1166 s->RxBufferSize = bufferSize;
1171 static void rtl8139_reset(RTL8139State *s)
1175 /* restore MAC address */
1176 memcpy(s->phys, s->macaddr, 6);
1178 /* reset interrupt mask */
1182 rtl8139_update_irq(s);
1184 /* prepare eeprom */
1185 s->eeprom.contents[0] = 0x8129;
1187 // PCI vendor and device ID should be mirrored here
1188 s->eeprom.contents[1] = 0x10ec;
1189 s->eeprom.contents[2] = 0x8139;
1192 s->eeprom.contents[7] = s->macaddr[0] | s->macaddr[1] << 8;
1193 s->eeprom.contents[8] = s->macaddr[2] | s->macaddr[3] << 8;
1194 s->eeprom.contents[9] = s->macaddr[4] | s->macaddr[5] << 8;
1196 /* mark all status registers as owned by host */
1197 for (i = 0; i < 4; ++i)
1199 s->TxStatus[i] = TxHostOwns;
1203 s->currCPlusRxDesc = 0;
1204 s->currCPlusTxDesc = 0;
1206 s->RxRingAddrLO = 0;
1207 s->RxRingAddrHI = 0;
1211 rtl8139_reset_rxring(s, 8192);
1217 // s->TxConfig |= HW_REVID(1, 0, 0, 0, 0, 0, 0); // RTL-8139 HasHltClk
1218 s->clock_enabled = 0;
1220 s->TxConfig |= HW_REVID(1, 1, 1, 0, 1, 1, 0); // RTL-8139C+ HasLWake
1221 s->clock_enabled = 1;
1224 s->bChipCmdState = CmdReset; /* RxBufEmpty bit is calculated on read from ChipCmd */;
1226 /* set initial state data */
1227 s->Config0 = 0x0; /* No boot ROM */
1228 s->Config1 = 0xC; /* IO mapped and MEM mapped registers available */
1229 s->Config3 = 0x1; /* fast back-to-back compatible */
1232 s->CSCR = CSCR_F_LINK_100 | CSCR_HEART_BIT | CSCR_LD;
1234 s->CpCmd = 0x0; /* reset C+ mode */
1236 // s->BasicModeCtrl = 0x3100; // 100Mbps, full duplex, autonegotiation
1237 // s->BasicModeCtrl = 0x2100; // 100Mbps, full duplex
1238 s->BasicModeCtrl = 0x1000; // autonegotiation
1240 s->BasicModeStatus = 0x7809;
1241 //s->BasicModeStatus |= 0x0040; /* UTP medium */
1242 s->BasicModeStatus |= 0x0020; /* autonegotiation completed */
1243 s->BasicModeStatus |= 0x0004; /* link is up */
1245 s->NWayAdvert = 0x05e1; /* all modes, full duplex */
1246 s->NWayLPAR = 0x05e1; /* all modes, full duplex */
1247 s->NWayExpansion = 0x0001; /* autonegotiation supported */
1249 /* also reset timer and disable timer interrupt */
1254 /* reset tally counters */
1255 RTL8139TallyCounters_clear(&s->tally_counters);
1258 static void RTL8139TallyCounters_clear(RTL8139TallyCounters* counters)
1262 counters->TxERR = 0;
1263 counters->RxERR = 0;
1264 counters->MissPkt = 0;
1266 counters->Tx1Col = 0;
1267 counters->TxMCol = 0;
1268 counters->RxOkPhy = 0;
1269 counters->RxOkBrd = 0;
1270 counters->RxOkMul = 0;
1271 counters->TxAbt = 0;
1272 counters->TxUndrn = 0;
1275 static void RTL8139TallyCounters_physical_memory_write(target_phys_addr_t tc_addr, RTL8139TallyCounters* tally_counters)
1281 val64 = cpu_to_le64(tally_counters->TxOk);
1282 cpu_physical_memory_write(tc_addr + 0, (uint8_t *)&val64, 8);
1284 val64 = cpu_to_le64(tally_counters->RxOk);
1285 cpu_physical_memory_write(tc_addr + 8, (uint8_t *)&val64, 8);
1287 val64 = cpu_to_le64(tally_counters->TxERR);
1288 cpu_physical_memory_write(tc_addr + 16, (uint8_t *)&val64, 8);
1290 val32 = cpu_to_le32(tally_counters->RxERR);
1291 cpu_physical_memory_write(tc_addr + 24, (uint8_t *)&val32, 4);
1293 val16 = cpu_to_le16(tally_counters->MissPkt);
1294 cpu_physical_memory_write(tc_addr + 28, (uint8_t *)&val16, 2);
1296 val16 = cpu_to_le16(tally_counters->FAE);
1297 cpu_physical_memory_write(tc_addr + 30, (uint8_t *)&val16, 2);
1299 val32 = cpu_to_le32(tally_counters->Tx1Col);
1300 cpu_physical_memory_write(tc_addr + 32, (uint8_t *)&val32, 4);
1302 val32 = cpu_to_le32(tally_counters->TxMCol);
1303 cpu_physical_memory_write(tc_addr + 36, (uint8_t *)&val32, 4);
1305 val64 = cpu_to_le64(tally_counters->RxOkPhy);
1306 cpu_physical_memory_write(tc_addr + 40, (uint8_t *)&val64, 8);
1308 val64 = cpu_to_le64(tally_counters->RxOkBrd);
1309 cpu_physical_memory_write(tc_addr + 48, (uint8_t *)&val64, 8);
1311 val32 = cpu_to_le32(tally_counters->RxOkMul);
1312 cpu_physical_memory_write(tc_addr + 56, (uint8_t *)&val32, 4);
1314 val16 = cpu_to_le16(tally_counters->TxAbt);
1315 cpu_physical_memory_write(tc_addr + 60, (uint8_t *)&val16, 2);
1317 val16 = cpu_to_le16(tally_counters->TxUndrn);
1318 cpu_physical_memory_write(tc_addr + 62, (uint8_t *)&val16, 2);
1321 /* Loads values of tally counters from VM state file */
1322 static void RTL8139TallyCounters_load(QEMUFile* f, RTL8139TallyCounters *tally_counters)
1324 qemu_get_be64s(f, &tally_counters->TxOk);
1325 qemu_get_be64s(f, &tally_counters->RxOk);
1326 qemu_get_be64s(f, &tally_counters->TxERR);
1327 qemu_get_be32s(f, &tally_counters->RxERR);
1328 qemu_get_be16s(f, &tally_counters->MissPkt);
1329 qemu_get_be16s(f, &tally_counters->FAE);
1330 qemu_get_be32s(f, &tally_counters->Tx1Col);
1331 qemu_get_be32s(f, &tally_counters->TxMCol);
1332 qemu_get_be64s(f, &tally_counters->RxOkPhy);
1333 qemu_get_be64s(f, &tally_counters->RxOkBrd);
1334 qemu_get_be32s(f, &tally_counters->RxOkMul);
1335 qemu_get_be16s(f, &tally_counters->TxAbt);
1336 qemu_get_be16s(f, &tally_counters->TxUndrn);
1339 /* Saves values of tally counters to VM state file */
1340 static void RTL8139TallyCounters_save(QEMUFile* f, RTL8139TallyCounters *tally_counters)
1342 qemu_put_be64s(f, &tally_counters->TxOk);
1343 qemu_put_be64s(f, &tally_counters->RxOk);
1344 qemu_put_be64s(f, &tally_counters->TxERR);
1345 qemu_put_be32s(f, &tally_counters->RxERR);
1346 qemu_put_be16s(f, &tally_counters->MissPkt);
1347 qemu_put_be16s(f, &tally_counters->FAE);
1348 qemu_put_be32s(f, &tally_counters->Tx1Col);
1349 qemu_put_be32s(f, &tally_counters->TxMCol);
1350 qemu_put_be64s(f, &tally_counters->RxOkPhy);
1351 qemu_put_be64s(f, &tally_counters->RxOkBrd);
1352 qemu_put_be32s(f, &tally_counters->RxOkMul);
1353 qemu_put_be16s(f, &tally_counters->TxAbt);
1354 qemu_put_be16s(f, &tally_counters->TxUndrn);
1357 static void rtl8139_ChipCmd_write(RTL8139State *s, uint32_t val)
1361 DEBUG_PRINT(("RTL8139: ChipCmd write val=0x%08x\n", val));
1365 DEBUG_PRINT(("RTL8139: ChipCmd reset\n"));
1370 DEBUG_PRINT(("RTL8139: ChipCmd enable receiver\n"));
1372 s->currCPlusRxDesc = 0;
1376 DEBUG_PRINT(("RTL8139: ChipCmd enable transmitter\n"));
1378 s->currCPlusTxDesc = 0;
1381 /* mask unwriteable bits */
1382 val = SET_MASKED(val, 0xe3, s->bChipCmdState);
1384 /* Deassert reset pin before next read */
1387 s->bChipCmdState = val;
1390 static int rtl8139_RxBufferEmpty(RTL8139State *s)
1392 int unread = MOD2(s->RxBufferSize + s->RxBufAddr - s->RxBufPtr, s->RxBufferSize);
1396 DEBUG_PRINT(("RTL8139: receiver buffer data available 0x%04x\n", unread));
1400 DEBUG_PRINT(("RTL8139: receiver buffer is empty\n"));
1405 static uint32_t rtl8139_ChipCmd_read(RTL8139State *s)
1407 uint32_t ret = s->bChipCmdState;
1409 if (rtl8139_RxBufferEmpty(s))
1412 DEBUG_PRINT(("RTL8139: ChipCmd read val=0x%04x\n", ret));
1417 static void rtl8139_CpCmd_write(RTL8139State *s, uint32_t val)
1421 DEBUG_PRINT(("RTL8139C+ command register write(w) val=0x%04x\n", val));
1423 /* mask unwriteable bits */
1424 val = SET_MASKED(val, 0xff84, s->CpCmd);
1429 static uint32_t rtl8139_CpCmd_read(RTL8139State *s)
1431 uint32_t ret = s->CpCmd;
1433 DEBUG_PRINT(("RTL8139C+ command register read(w) val=0x%04x\n", ret));
1438 static void rtl8139_IntrMitigate_write(RTL8139State *s, uint32_t val)
1440 DEBUG_PRINT(("RTL8139C+ IntrMitigate register write(w) val=0x%04x\n", val));
1443 static uint32_t rtl8139_IntrMitigate_read(RTL8139State *s)
1447 DEBUG_PRINT(("RTL8139C+ IntrMitigate register read(w) val=0x%04x\n", ret));
1452 static int rtl8139_config_writeable(RTL8139State *s)
1454 if (s->Cfg9346 & Cfg9346_Unlock)
1459 DEBUG_PRINT(("RTL8139: Configuration registers are write-protected\n"));
1464 static void rtl8139_BasicModeCtrl_write(RTL8139State *s, uint32_t val)
1468 DEBUG_PRINT(("RTL8139: BasicModeCtrl register write(w) val=0x%04x\n", val));
1470 /* mask unwriteable bits */
1471 uint32_t mask = 0x4cff;
1473 if (1 || !rtl8139_config_writeable(s))
1475 /* Speed setting and autonegotiation enable bits are read-only */
1477 /* Duplex mode setting is read-only */
1481 val = SET_MASKED(val, mask, s->BasicModeCtrl);
1483 s->BasicModeCtrl = val;
1486 static uint32_t rtl8139_BasicModeCtrl_read(RTL8139State *s)
1488 uint32_t ret = s->BasicModeCtrl;
1490 DEBUG_PRINT(("RTL8139: BasicModeCtrl register read(w) val=0x%04x\n", ret));
1495 static void rtl8139_BasicModeStatus_write(RTL8139State *s, uint32_t val)
1499 DEBUG_PRINT(("RTL8139: BasicModeStatus register write(w) val=0x%04x\n", val));
1501 /* mask unwriteable bits */
1502 val = SET_MASKED(val, 0xff3f, s->BasicModeStatus);
1504 s->BasicModeStatus = val;
1507 static uint32_t rtl8139_BasicModeStatus_read(RTL8139State *s)
1509 uint32_t ret = s->BasicModeStatus;
1511 DEBUG_PRINT(("RTL8139: BasicModeStatus register read(w) val=0x%04x\n", ret));
1516 static void rtl8139_Cfg9346_write(RTL8139State *s, uint32_t val)
1520 DEBUG_PRINT(("RTL8139: Cfg9346 write val=0x%02x\n", val));
1522 /* mask unwriteable bits */
1523 val = SET_MASKED(val, 0x31, s->Cfg9346);
1525 uint32_t opmode = val & 0xc0;
1526 uint32_t eeprom_val = val & 0xf;
1528 if (opmode == 0x80) {
1530 int eecs = (eeprom_val & 0x08)?1:0;
1531 int eesk = (eeprom_val & 0x04)?1:0;
1532 int eedi = (eeprom_val & 0x02)?1:0;
1533 prom9346_set_wire(s, eecs, eesk, eedi);
1534 } else if (opmode == 0x40) {
1543 static uint32_t rtl8139_Cfg9346_read(RTL8139State *s)
1545 uint32_t ret = s->Cfg9346;
1547 uint32_t opmode = ret & 0xc0;
1552 int eedo = prom9346_get_wire(s);
1563 DEBUG_PRINT(("RTL8139: Cfg9346 read val=0x%02x\n", ret));
1568 static void rtl8139_Config0_write(RTL8139State *s, uint32_t val)
1572 DEBUG_PRINT(("RTL8139: Config0 write val=0x%02x\n", val));
1574 if (!rtl8139_config_writeable(s))
1577 /* mask unwriteable bits */
1578 val = SET_MASKED(val, 0xf8, s->Config0);
1583 static uint32_t rtl8139_Config0_read(RTL8139State *s)
1585 uint32_t ret = s->Config0;
1587 DEBUG_PRINT(("RTL8139: Config0 read val=0x%02x\n", ret));
1592 static void rtl8139_Config1_write(RTL8139State *s, uint32_t val)
1596 DEBUG_PRINT(("RTL8139: Config1 write val=0x%02x\n", val));
1598 if (!rtl8139_config_writeable(s))
1601 /* mask unwriteable bits */
1602 val = SET_MASKED(val, 0xC, s->Config1);
1607 static uint32_t rtl8139_Config1_read(RTL8139State *s)
1609 uint32_t ret = s->Config1;
1611 DEBUG_PRINT(("RTL8139: Config1 read val=0x%02x\n", ret));
1616 static void rtl8139_Config3_write(RTL8139State *s, uint32_t val)
1620 DEBUG_PRINT(("RTL8139: Config3 write val=0x%02x\n", val));
1622 if (!rtl8139_config_writeable(s))
1625 /* mask unwriteable bits */
1626 val = SET_MASKED(val, 0x8F, s->Config3);
1631 static uint32_t rtl8139_Config3_read(RTL8139State *s)
1633 uint32_t ret = s->Config3;
1635 DEBUG_PRINT(("RTL8139: Config3 read val=0x%02x\n", ret));
1640 static void rtl8139_Config4_write(RTL8139State *s, uint32_t val)
1644 DEBUG_PRINT(("RTL8139: Config4 write val=0x%02x\n", val));
1646 if (!rtl8139_config_writeable(s))
1649 /* mask unwriteable bits */
1650 val = SET_MASKED(val, 0x0a, s->Config4);
1655 static uint32_t rtl8139_Config4_read(RTL8139State *s)
1657 uint32_t ret = s->Config4;
1659 DEBUG_PRINT(("RTL8139: Config4 read val=0x%02x\n", ret));
1664 static void rtl8139_Config5_write(RTL8139State *s, uint32_t val)
1668 DEBUG_PRINT(("RTL8139: Config5 write val=0x%02x\n", val));
1670 /* mask unwriteable bits */
1671 val = SET_MASKED(val, 0x80, s->Config5);
1676 static uint32_t rtl8139_Config5_read(RTL8139State *s)
1678 uint32_t ret = s->Config5;
1680 DEBUG_PRINT(("RTL8139: Config5 read val=0x%02x\n", ret));
1685 static void rtl8139_TxConfig_write(RTL8139State *s, uint32_t val)
1687 if (!rtl8139_transmitter_enabled(s))
1689 DEBUG_PRINT(("RTL8139: transmitter disabled; no TxConfig write val=0x%08x\n", val));
1693 DEBUG_PRINT(("RTL8139: TxConfig write val=0x%08x\n", val));
1695 val = SET_MASKED(val, TxVersionMask | 0x8070f80f, s->TxConfig);
1700 static void rtl8139_TxConfig_writeb(RTL8139State *s, uint32_t val)
1702 DEBUG_PRINT(("RTL8139C TxConfig via write(b) val=0x%02x\n", val));
1704 uint32_t tc = s->TxConfig;
1706 tc |= (val & 0x000000FF);
1707 rtl8139_TxConfig_write(s, tc);
1710 static uint32_t rtl8139_TxConfig_read(RTL8139State *s)
1712 uint32_t ret = s->TxConfig;
1714 DEBUG_PRINT(("RTL8139: TxConfig read val=0x%04x\n", ret));
1719 static void rtl8139_RxConfig_write(RTL8139State *s, uint32_t val)
1721 DEBUG_PRINT(("RTL8139: RxConfig write val=0x%08x\n", val));
1723 /* mask unwriteable bits */
1724 val = SET_MASKED(val, 0xf0fc0040, s->RxConfig);
1728 /* reset buffer size and read/write pointers */
1729 rtl8139_reset_rxring(s, 8192 << ((s->RxConfig >> 11) & 0x3));
1731 DEBUG_PRINT(("RTL8139: RxConfig write reset buffer size to %d\n", s->RxBufferSize));
1734 static uint32_t rtl8139_RxConfig_read(RTL8139State *s)
1736 uint32_t ret = s->RxConfig;
1738 DEBUG_PRINT(("RTL8139: RxConfig read val=0x%08x\n", ret));
1743 static void rtl8139_transfer_frame(RTL8139State *s, const uint8_t *buf, int size, int do_interrupt)
1747 DEBUG_PRINT(("RTL8139: +++ empty ethernet frame\n"));
1751 if (TxLoopBack == (s->TxConfig & TxLoopBack))
1753 DEBUG_PRINT(("RTL8139: +++ transmit loopback mode\n"));
1754 rtl8139_do_receive(s, buf, size, do_interrupt);
1758 qemu_send_packet(s->vc, buf, size);
1762 static int rtl8139_transmit_one(RTL8139State *s, int descriptor)
1764 if (!rtl8139_transmitter_enabled(s))
1766 DEBUG_PRINT(("RTL8139: +++ cannot transmit from descriptor %d: transmitter disabled\n",
1771 if (s->TxStatus[descriptor] & TxHostOwns)
1773 DEBUG_PRINT(("RTL8139: +++ cannot transmit from descriptor %d: owned by host (%08x)\n",
1774 descriptor, s->TxStatus[descriptor]));
1778 DEBUG_PRINT(("RTL8139: +++ transmitting from descriptor %d\n", descriptor));
1780 int txsize = s->TxStatus[descriptor] & 0x1fff;
1781 uint8_t txbuffer[0x2000];
1783 DEBUG_PRINT(("RTL8139: +++ transmit reading %d bytes from host memory at 0x%08x\n",
1784 txsize, s->TxAddr[descriptor]));
1786 cpu_physical_memory_read(s->TxAddr[descriptor], txbuffer, txsize);
1788 /* Mark descriptor as transferred */
1789 s->TxStatus[descriptor] |= TxHostOwns;
1790 s->TxStatus[descriptor] |= TxStatOK;
1792 rtl8139_transfer_frame(s, txbuffer, txsize, 0);
1794 DEBUG_PRINT(("RTL8139: +++ transmitted %d bytes from descriptor %d\n", txsize, descriptor));
1796 /* update interrupt */
1797 s->IntrStatus |= TxOK;
1798 rtl8139_update_irq(s);
1803 /* structures and macros for task offloading */
1804 typedef struct ip_header
1806 uint8_t ip_ver_len; /* version and header length */
1807 uint8_t ip_tos; /* type of service */
1808 uint16_t ip_len; /* total length */
1809 uint16_t ip_id; /* identification */
1810 uint16_t ip_off; /* fragment offset field */
1811 uint8_t ip_ttl; /* time to live */
1812 uint8_t ip_p; /* protocol */
1813 uint16_t ip_sum; /* checksum */
1814 uint32_t ip_src,ip_dst; /* source and dest address */
1817 #define IP_HEADER_VERSION_4 4
1818 #define IP_HEADER_VERSION(ip) ((ip->ip_ver_len >> 4)&0xf)
1819 #define IP_HEADER_LENGTH(ip) (((ip->ip_ver_len)&0xf) << 2)
1821 typedef struct tcp_header
1823 uint16_t th_sport; /* source port */
1824 uint16_t th_dport; /* destination port */
1825 uint32_t th_seq; /* sequence number */
1826 uint32_t th_ack; /* acknowledgement number */
1827 uint16_t th_offset_flags; /* data offset, reserved 6 bits, TCP protocol flags */
1828 uint16_t th_win; /* window */
1829 uint16_t th_sum; /* checksum */
1830 uint16_t th_urp; /* urgent pointer */
1833 typedef struct udp_header
1835 uint16_t uh_sport; /* source port */
1836 uint16_t uh_dport; /* destination port */
1837 uint16_t uh_ulen; /* udp length */
1838 uint16_t uh_sum; /* udp checksum */
1841 typedef struct ip_pseudo_header
1847 uint16_t ip_payload;
1850 #define IP_PROTO_TCP 6
1851 #define IP_PROTO_UDP 17
1853 #define TCP_HEADER_DATA_OFFSET(tcp) (((be16_to_cpu(tcp->th_offset_flags) >> 12)&0xf) << 2)
1854 #define TCP_FLAGS_ONLY(flags) ((flags)&0x3f)
1855 #define TCP_HEADER_FLAGS(tcp) TCP_FLAGS_ONLY(be16_to_cpu(tcp->th_offset_flags))
1857 #define TCP_HEADER_CLEAR_FLAGS(tcp, off) ((tcp)->th_offset_flags &= cpu_to_be16(~TCP_FLAGS_ONLY(off)))
1859 #define TCP_FLAG_FIN 0x01
1860 #define TCP_FLAG_PUSH 0x08
1862 /* produces ones' complement sum of data */
1863 static uint16_t ones_complement_sum(uint8_t *data, size_t len)
1865 uint32_t result = 0;
1867 for (; len > 1; data+=2, len-=2)
1869 result += *(uint16_t*)data;
1872 /* add the remainder byte */
1875 uint8_t odd[2] = {*data, 0};
1876 result += *(uint16_t*)odd;
1880 result = (result & 0xffff) + (result >> 16);
1885 static uint16_t ip_checksum(void *data, size_t len)
1887 return ~ones_complement_sum((uint8_t*)data, len);
1890 static int rtl8139_cplus_transmit_one(RTL8139State *s)
1892 if (!rtl8139_transmitter_enabled(s))
1894 DEBUG_PRINT(("RTL8139: +++ C+ mode: transmitter disabled\n"));
1898 if (!rtl8139_cp_transmitter_enabled(s))
1900 DEBUG_PRINT(("RTL8139: +++ C+ mode: C+ transmitter disabled\n"));
1904 int descriptor = s->currCPlusTxDesc;
1906 target_phys_addr_t cplus_tx_ring_desc =
1907 rtl8139_addr64(s->TxAddr[0], s->TxAddr[1]);
1909 /* Normal priority ring */
1910 cplus_tx_ring_desc += 16 * descriptor;
1912 DEBUG_PRINT(("RTL8139: +++ C+ mode reading TX descriptor %d from host memory at %08x0x%08x = 0x%8lx\n",
1913 descriptor, s->TxAddr[1], s->TxAddr[0], cplus_tx_ring_desc));
1915 uint32_t val, txdw0,txdw1,txbufLO,txbufHI;
1917 cpu_physical_memory_read(cplus_tx_ring_desc, (uint8_t *)&val, 4);
1918 txdw0 = le32_to_cpu(val);
1919 cpu_physical_memory_read(cplus_tx_ring_desc+4, (uint8_t *)&val, 4);
1920 txdw1 = le32_to_cpu(val);
1921 cpu_physical_memory_read(cplus_tx_ring_desc+8, (uint8_t *)&val, 4);
1922 txbufLO = le32_to_cpu(val);
1923 cpu_physical_memory_read(cplus_tx_ring_desc+12, (uint8_t *)&val, 4);
1924 txbufHI = le32_to_cpu(val);
1926 DEBUG_PRINT(("RTL8139: +++ C+ mode TX descriptor %d %08x %08x %08x %08x\n",
1928 txdw0, txdw1, txbufLO, txbufHI));
1930 /* w0 ownership flag */
1931 #define CP_TX_OWN (1<<31)
1932 /* w0 end of ring flag */
1933 #define CP_TX_EOR (1<<30)
1934 /* first segment of received packet flag */
1935 #define CP_TX_FS (1<<29)
1936 /* last segment of received packet flag */
1937 #define CP_TX_LS (1<<28)
1938 /* large send packet flag */
1939 #define CP_TX_LGSEN (1<<27)
1940 /* large send MSS mask, bits 16...25 */
1941 #define CP_TC_LGSEN_MSS_MASK ((1 << 12) - 1)
1943 /* IP checksum offload flag */
1944 #define CP_TX_IPCS (1<<18)
1945 /* UDP checksum offload flag */
1946 #define CP_TX_UDPCS (1<<17)
1947 /* TCP checksum offload flag */
1948 #define CP_TX_TCPCS (1<<16)
1950 /* w0 bits 0...15 : buffer size */
1951 #define CP_TX_BUFFER_SIZE (1<<16)
1952 #define CP_TX_BUFFER_SIZE_MASK (CP_TX_BUFFER_SIZE - 1)
1953 /* w1 tag available flag */
1954 #define CP_RX_TAGC (1<<17)
1955 /* w1 bits 0...15 : VLAN tag */
1956 #define CP_TX_VLAN_TAG_MASK ((1<<16) - 1)
1957 /* w2 low 32bit of Rx buffer ptr */
1958 /* w3 high 32bit of Rx buffer ptr */
1960 /* set after transmission */
1961 /* FIFO underrun flag */
1962 #define CP_TX_STATUS_UNF (1<<25)
1963 /* transmit error summary flag, valid if set any of three below */
1964 #define CP_TX_STATUS_TES (1<<23)
1965 /* out-of-window collision flag */
1966 #define CP_TX_STATUS_OWC (1<<22)
1967 /* link failure flag */
1968 #define CP_TX_STATUS_LNKF (1<<21)
1969 /* excessive collisions flag */
1970 #define CP_TX_STATUS_EXC (1<<20)
1972 if (!(txdw0 & CP_TX_OWN))
1974 DEBUG_PRINT(("RTL8139: C+ Tx mode : descriptor %d is owned by host\n", descriptor));
1978 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : transmitting from descriptor %d\n", descriptor));
1980 if (txdw0 & CP_TX_FS)
1982 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : descriptor %d is first segment descriptor\n", descriptor));
1984 /* reset internal buffer offset */
1985 s->cplus_txbuffer_offset = 0;
1988 int txsize = txdw0 & CP_TX_BUFFER_SIZE_MASK;
1989 target_phys_addr_t tx_addr = rtl8139_addr64(txbufLO, txbufHI);
1991 /* make sure we have enough space to assemble the packet */
1992 if (!s->cplus_txbuffer)
1994 s->cplus_txbuffer_len = CP_TX_BUFFER_SIZE;
1995 s->cplus_txbuffer = malloc(s->cplus_txbuffer_len);
1996 s->cplus_txbuffer_offset = 0;
1998 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission buffer allocated space %d\n", s->cplus_txbuffer_len));
2001 while (s->cplus_txbuffer && s->cplus_txbuffer_offset + txsize >= s->cplus_txbuffer_len)
2003 s->cplus_txbuffer_len += CP_TX_BUFFER_SIZE;
2004 s->cplus_txbuffer = qemu_realloc(s->cplus_txbuffer, s->cplus_txbuffer_len);
2006 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission buffer space changed to %d\n", s->cplus_txbuffer_len));
2009 if (!s->cplus_txbuffer)
2013 DEBUG_PRINT(("RTL8139: +++ C+ mode transmiter failed to reallocate %d bytes\n", s->cplus_txbuffer_len));
2015 /* update tally counter */
2016 ++s->tally_counters.TxERR;
2017 ++s->tally_counters.TxAbt;
2022 /* append more data to the packet */
2024 DEBUG_PRINT(("RTL8139: +++ C+ mode transmit reading %d bytes from host memory at %016" PRIx64 " to offset %d\n",
2025 txsize, (uint64_t)tx_addr, s->cplus_txbuffer_offset));
2027 cpu_physical_memory_read(tx_addr, s->cplus_txbuffer + s->cplus_txbuffer_offset, txsize);
2028 s->cplus_txbuffer_offset += txsize;
2030 /* seek to next Rx descriptor */
2031 if (txdw0 & CP_TX_EOR)
2033 s->currCPlusTxDesc = 0;
2037 ++s->currCPlusTxDesc;
2038 if (s->currCPlusTxDesc >= 64)
2039 s->currCPlusTxDesc = 0;
2042 /* transfer ownership to target */
2043 txdw0 &= ~CP_RX_OWN;
2045 /* reset error indicator bits */
2046 txdw0 &= ~CP_TX_STATUS_UNF;
2047 txdw0 &= ~CP_TX_STATUS_TES;
2048 txdw0 &= ~CP_TX_STATUS_OWC;
2049 txdw0 &= ~CP_TX_STATUS_LNKF;
2050 txdw0 &= ~CP_TX_STATUS_EXC;
2052 /* update ring data */
2053 val = cpu_to_le32(txdw0);
2054 cpu_physical_memory_write(cplus_tx_ring_desc, (uint8_t *)&val, 4);
2055 // val = cpu_to_le32(txdw1);
2056 // cpu_physical_memory_write(cplus_tx_ring_desc+4, &val, 4);
2058 /* Now decide if descriptor being processed is holding the last segment of packet */
2059 if (txdw0 & CP_TX_LS)
2061 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : descriptor %d is last segment descriptor\n", descriptor));
2063 /* can transfer fully assembled packet */
2065 uint8_t *saved_buffer = s->cplus_txbuffer;
2066 int saved_size = s->cplus_txbuffer_offset;
2067 int saved_buffer_len = s->cplus_txbuffer_len;
2069 /* reset the card space to protect from recursive call */
2070 s->cplus_txbuffer = NULL;
2071 s->cplus_txbuffer_offset = 0;
2072 s->cplus_txbuffer_len = 0;
2074 if (txdw0 & (CP_TX_IPCS | CP_TX_UDPCS | CP_TX_TCPCS | CP_TX_LGSEN))
2076 DEBUG_PRINT(("RTL8139: +++ C+ mode offloaded task checksum\n"));
2078 #define ETH_P_IP 0x0800 /* Internet Protocol packet */
2080 #define ETH_MTU 1500
2082 /* ip packet header */
2085 uint8_t ip_protocol = 0;
2086 uint16_t ip_data_len = 0;
2088 uint8_t *eth_payload_data = 0;
2089 size_t eth_payload_len = 0;
2091 int proto = be16_to_cpu(*(uint16_t *)(saved_buffer + 12));
2092 if (proto == ETH_P_IP)
2094 DEBUG_PRINT(("RTL8139: +++ C+ mode has IP packet\n"));
2097 eth_payload_data = saved_buffer + ETH_HLEN;
2098 eth_payload_len = saved_size - ETH_HLEN;
2100 ip = (ip_header*)eth_payload_data;
2102 if (IP_HEADER_VERSION(ip) != IP_HEADER_VERSION_4) {
2103 DEBUG_PRINT(("RTL8139: +++ C+ mode packet has bad IP version %d expected %d\n", IP_HEADER_VERSION(ip), IP_HEADER_VERSION_4));
2106 hlen = IP_HEADER_LENGTH(ip);
2107 ip_protocol = ip->ip_p;
2108 ip_data_len = be16_to_cpu(ip->ip_len) - hlen;
2114 if (txdw0 & CP_TX_IPCS)
2116 DEBUG_PRINT(("RTL8139: +++ C+ mode need IP checksum\n"));
2118 if (hlen<sizeof(ip_header) || hlen>eth_payload_len) {/* min header length */
2119 /* bad packet header len */
2120 /* or packet too short */
2125 ip->ip_sum = ip_checksum(ip, hlen);
2126 DEBUG_PRINT(("RTL8139: +++ C+ mode IP header len=%d checksum=%04x\n", hlen, ip->ip_sum));
2130 if ((txdw0 & CP_TX_LGSEN) && ip_protocol == IP_PROTO_TCP)
2132 #if defined (DEBUG_RTL8139)
2133 int large_send_mss = (txdw0 >> 16) & CP_TC_LGSEN_MSS_MASK;
2135 DEBUG_PRINT(("RTL8139: +++ C+ mode offloaded task TSO MTU=%d IP data %d frame data %d specified MSS=%d\n",
2136 ETH_MTU, ip_data_len, saved_size - ETH_HLEN, large_send_mss));
2138 int tcp_send_offset = 0;
2141 /* maximum IP header length is 60 bytes */
2142 uint8_t saved_ip_header[60];
2144 /* save IP header template; data area is used in tcp checksum calculation */
2145 memcpy(saved_ip_header, eth_payload_data, hlen);
2147 /* a placeholder for checksum calculation routine in tcp case */
2148 uint8_t *data_to_checksum = eth_payload_data + hlen - 12;
2149 // size_t data_to_checksum_len = eth_payload_len - hlen + 12;
2151 /* pointer to TCP header */
2152 tcp_header *p_tcp_hdr = (tcp_header*)(eth_payload_data + hlen);
2154 int tcp_hlen = TCP_HEADER_DATA_OFFSET(p_tcp_hdr);
2156 /* ETH_MTU = ip header len + tcp header len + payload */
2157 int tcp_data_len = ip_data_len - tcp_hlen;
2158 int tcp_chunk_size = ETH_MTU - hlen - tcp_hlen;
2160 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO IP data len %d TCP hlen %d TCP data len %d TCP chunk size %d\n",
2161 ip_data_len, tcp_hlen, tcp_data_len, tcp_chunk_size));
2163 /* note the cycle below overwrites IP header data,
2164 but restores it from saved_ip_header before sending packet */
2166 int is_last_frame = 0;
2168 for (tcp_send_offset = 0; tcp_send_offset < tcp_data_len; tcp_send_offset += tcp_chunk_size)
2170 uint16_t chunk_size = tcp_chunk_size;
2172 /* check if this is the last frame */
2173 if (tcp_send_offset + tcp_chunk_size >= tcp_data_len)
2176 chunk_size = tcp_data_len - tcp_send_offset;
2179 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO TCP seqno %08x\n", be32_to_cpu(p_tcp_hdr->th_seq)));
2181 /* add 4 TCP pseudoheader fields */
2182 /* copy IP source and destination fields */
2183 memcpy(data_to_checksum, saved_ip_header + 12, 8);
2185 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO calculating TCP checksum for packet with %d bytes data\n", tcp_hlen + chunk_size));
2187 if (tcp_send_offset)
2189 memcpy((uint8_t*)p_tcp_hdr + tcp_hlen, (uint8_t*)p_tcp_hdr + tcp_hlen + tcp_send_offset, chunk_size);
2192 /* keep PUSH and FIN flags only for the last frame */
2195 TCP_HEADER_CLEAR_FLAGS(p_tcp_hdr, TCP_FLAG_PUSH|TCP_FLAG_FIN);
2198 /* recalculate TCP checksum */
2199 ip_pseudo_header *p_tcpip_hdr = (ip_pseudo_header *)data_to_checksum;
2200 p_tcpip_hdr->zeros = 0;
2201 p_tcpip_hdr->ip_proto = IP_PROTO_TCP;
2202 p_tcpip_hdr->ip_payload = cpu_to_be16(tcp_hlen + chunk_size);
2204 p_tcp_hdr->th_sum = 0;
2206 int tcp_checksum = ip_checksum(data_to_checksum, tcp_hlen + chunk_size + 12);
2207 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO TCP checksum %04x\n", tcp_checksum));
2209 p_tcp_hdr->th_sum = tcp_checksum;
2211 /* restore IP header */
2212 memcpy(eth_payload_data, saved_ip_header, hlen);
2214 /* set IP data length and recalculate IP checksum */
2215 ip->ip_len = cpu_to_be16(hlen + tcp_hlen + chunk_size);
2217 /* increment IP id for subsequent frames */
2218 ip->ip_id = cpu_to_be16(tcp_send_offset/tcp_chunk_size + be16_to_cpu(ip->ip_id));
2221 ip->ip_sum = ip_checksum(eth_payload_data, hlen);
2222 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO IP header len=%d checksum=%04x\n", hlen, ip->ip_sum));
2224 int tso_send_size = ETH_HLEN + hlen + tcp_hlen + chunk_size;
2225 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO transferring packet size %d\n", tso_send_size));
2226 rtl8139_transfer_frame(s, saved_buffer, tso_send_size, 0);
2228 /* add transferred count to TCP sequence number */
2229 p_tcp_hdr->th_seq = cpu_to_be32(chunk_size + be32_to_cpu(p_tcp_hdr->th_seq));
2233 /* Stop sending this frame */
2236 else if (txdw0 & (CP_TX_TCPCS|CP_TX_UDPCS))
2238 DEBUG_PRINT(("RTL8139: +++ C+ mode need TCP or UDP checksum\n"));
2240 /* maximum IP header length is 60 bytes */
2241 uint8_t saved_ip_header[60];
2242 memcpy(saved_ip_header, eth_payload_data, hlen);
2244 uint8_t *data_to_checksum = eth_payload_data + hlen - 12;
2245 // size_t data_to_checksum_len = eth_payload_len - hlen + 12;
2247 /* add 4 TCP pseudoheader fields */
2248 /* copy IP source and destination fields */
2249 memcpy(data_to_checksum, saved_ip_header + 12, 8);
2251 if ((txdw0 & CP_TX_TCPCS) && ip_protocol == IP_PROTO_TCP)
2253 DEBUG_PRINT(("RTL8139: +++ C+ mode calculating TCP checksum for packet with %d bytes data\n", ip_data_len));
2255 ip_pseudo_header *p_tcpip_hdr = (ip_pseudo_header *)data_to_checksum;
2256 p_tcpip_hdr->zeros = 0;
2257 p_tcpip_hdr->ip_proto = IP_PROTO_TCP;
2258 p_tcpip_hdr->ip_payload = cpu_to_be16(ip_data_len);
2260 tcp_header* p_tcp_hdr = (tcp_header *) (data_to_checksum+12);
2262 p_tcp_hdr->th_sum = 0;
2264 int tcp_checksum = ip_checksum(data_to_checksum, ip_data_len + 12);
2265 DEBUG_PRINT(("RTL8139: +++ C+ mode TCP checksum %04x\n", tcp_checksum));
2267 p_tcp_hdr->th_sum = tcp_checksum;
2269 else if ((txdw0 & CP_TX_UDPCS) && ip_protocol == IP_PROTO_UDP)
2271 DEBUG_PRINT(("RTL8139: +++ C+ mode calculating UDP checksum for packet with %d bytes data\n", ip_data_len));
2273 ip_pseudo_header *p_udpip_hdr = (ip_pseudo_header *)data_to_checksum;
2274 p_udpip_hdr->zeros = 0;
2275 p_udpip_hdr->ip_proto = IP_PROTO_UDP;
2276 p_udpip_hdr->ip_payload = cpu_to_be16(ip_data_len);
2278 udp_header *p_udp_hdr = (udp_header *) (data_to_checksum+12);
2280 p_udp_hdr->uh_sum = 0;
2282 int udp_checksum = ip_checksum(data_to_checksum, ip_data_len + 12);
2283 DEBUG_PRINT(("RTL8139: +++ C+ mode UDP checksum %04x\n", udp_checksum));
2285 p_udp_hdr->uh_sum = udp_checksum;
2288 /* restore IP header */
2289 memcpy(eth_payload_data, saved_ip_header, hlen);
2294 /* update tally counter */
2295 ++s->tally_counters.TxOk;
2297 DEBUG_PRINT(("RTL8139: +++ C+ mode transmitting %d bytes packet\n", saved_size));
2299 rtl8139_transfer_frame(s, saved_buffer, saved_size, 1);
2301 /* restore card space if there was no recursion and reset offset */
2302 if (!s->cplus_txbuffer)
2304 s->cplus_txbuffer = saved_buffer;
2305 s->cplus_txbuffer_len = saved_buffer_len;
2306 s->cplus_txbuffer_offset = 0;
2315 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission continue to next descriptor\n"));
2321 static void rtl8139_cplus_transmit(RTL8139State *s)
2325 while (rtl8139_cplus_transmit_one(s))
2330 /* Mark transfer completed */
2333 DEBUG_PRINT(("RTL8139: C+ mode : transmitter queue stalled, current TxDesc = %d\n",
2334 s->currCPlusTxDesc));
2338 /* update interrupt status */
2339 s->IntrStatus |= TxOK;
2340 rtl8139_update_irq(s);
2344 static void rtl8139_transmit(RTL8139State *s)
2346 int descriptor = s->currTxDesc, txcount = 0;
2349 if (rtl8139_transmit_one(s, descriptor))
2356 /* Mark transfer completed */
2359 DEBUG_PRINT(("RTL8139: transmitter queue stalled, current TxDesc = %d\n", s->currTxDesc));
2363 static void rtl8139_TxStatus_write(RTL8139State *s, uint32_t txRegOffset, uint32_t val)
2366 int descriptor = txRegOffset/4;
2368 /* handle C+ transmit mode register configuration */
2370 if (rtl8139_cp_transmitter_enabled(s))
2372 DEBUG_PRINT(("RTL8139C+ DTCCR write offset=0x%x val=0x%08x descriptor=%d\n", txRegOffset, val, descriptor));
2374 /* handle Dump Tally Counters command */
2375 s->TxStatus[descriptor] = val;
2377 if (descriptor == 0 && (val & 0x8))
2379 target_phys_addr_t tc_addr = rtl8139_addr64(s->TxStatus[0] & ~0x3f, s->TxStatus[1]);
2381 /* dump tally counters to specified memory location */
2382 RTL8139TallyCounters_physical_memory_write( tc_addr, &s->tally_counters);
2384 /* mark dump completed */
2385 s->TxStatus[0] &= ~0x8;
2391 DEBUG_PRINT(("RTL8139: TxStatus write offset=0x%x val=0x%08x descriptor=%d\n", txRegOffset, val, descriptor));
2393 /* mask only reserved bits */
2394 val &= ~0xff00c000; /* these bits are reset on write */
2395 val = SET_MASKED(val, 0x00c00000, s->TxStatus[descriptor]);
2397 s->TxStatus[descriptor] = val;
2399 /* attempt to start transmission */
2400 rtl8139_transmit(s);
2403 static uint32_t rtl8139_TxStatus_read(RTL8139State *s, uint32_t txRegOffset)
2405 uint32_t ret = s->TxStatus[txRegOffset/4];
2407 DEBUG_PRINT(("RTL8139: TxStatus read offset=0x%x val=0x%08x\n", txRegOffset, ret));
2412 static uint16_t rtl8139_TSAD_read(RTL8139State *s)
2416 /* Simulate TSAD, it is read only anyway */
2418 ret = ((s->TxStatus[3] & TxStatOK )?TSAD_TOK3:0)
2419 |((s->TxStatus[2] & TxStatOK )?TSAD_TOK2:0)
2420 |((s->TxStatus[1] & TxStatOK )?TSAD_TOK1:0)
2421 |((s->TxStatus[0] & TxStatOK )?TSAD_TOK0:0)
2423 |((s->TxStatus[3] & TxUnderrun)?TSAD_TUN3:0)
2424 |((s->TxStatus[2] & TxUnderrun)?TSAD_TUN2:0)
2425 |((s->TxStatus[1] & TxUnderrun)?TSAD_TUN1:0)
2426 |((s->TxStatus[0] & TxUnderrun)?TSAD_TUN0:0)
2428 |((s->TxStatus[3] & TxAborted )?TSAD_TABT3:0)
2429 |((s->TxStatus[2] & TxAborted )?TSAD_TABT2:0)
2430 |((s->TxStatus[1] & TxAborted )?TSAD_TABT1:0)
2431 |((s->TxStatus[0] & TxAborted )?TSAD_TABT0:0)
2433 |((s->TxStatus[3] & TxHostOwns )?TSAD_OWN3:0)
2434 |((s->TxStatus[2] & TxHostOwns )?TSAD_OWN2:0)
2435 |((s->TxStatus[1] & TxHostOwns )?TSAD_OWN1:0)
2436 |((s->TxStatus[0] & TxHostOwns )?TSAD_OWN0:0) ;
2439 DEBUG_PRINT(("RTL8139: TSAD read val=0x%04x\n", ret));
2444 static uint16_t rtl8139_CSCR_read(RTL8139State *s)
2446 uint16_t ret = s->CSCR;
2448 DEBUG_PRINT(("RTL8139: CSCR read val=0x%04x\n", ret));
2453 static void rtl8139_TxAddr_write(RTL8139State *s, uint32_t txAddrOffset, uint32_t val)
2455 DEBUG_PRINT(("RTL8139: TxAddr write offset=0x%x val=0x%08x\n", txAddrOffset, val));
2457 s->TxAddr[txAddrOffset/4] = val;
2460 static uint32_t rtl8139_TxAddr_read(RTL8139State *s, uint32_t txAddrOffset)
2462 uint32_t ret = s->TxAddr[txAddrOffset/4];
2464 DEBUG_PRINT(("RTL8139: TxAddr read offset=0x%x val=0x%08x\n", txAddrOffset, ret));
2469 static void rtl8139_RxBufPtr_write(RTL8139State *s, uint32_t val)
2471 DEBUG_PRINT(("RTL8139: RxBufPtr write val=0x%04x\n", val));
2473 /* this value is off by 16 */
2474 s->RxBufPtr = MOD2(val + 0x10, s->RxBufferSize);
2476 DEBUG_PRINT((" CAPR write: rx buffer length %d head 0x%04x read 0x%04x\n",
2477 s->RxBufferSize, s->RxBufAddr, s->RxBufPtr));
2480 static uint32_t rtl8139_RxBufPtr_read(RTL8139State *s)
2482 /* this value is off by 16 */
2483 uint32_t ret = s->RxBufPtr - 0x10;
2485 DEBUG_PRINT(("RTL8139: RxBufPtr read val=0x%04x\n", ret));
2490 static uint32_t rtl8139_RxBufAddr_read(RTL8139State *s)
2492 /* this value is NOT off by 16 */
2493 uint32_t ret = s->RxBufAddr;
2495 DEBUG_PRINT(("RTL8139: RxBufAddr read val=0x%04x\n", ret));
2500 static void rtl8139_RxBuf_write(RTL8139State *s, uint32_t val)
2502 DEBUG_PRINT(("RTL8139: RxBuf write val=0x%08x\n", val));
2506 /* may need to reset rxring here */
2509 static uint32_t rtl8139_RxBuf_read(RTL8139State *s)
2511 uint32_t ret = s->RxBuf;
2513 DEBUG_PRINT(("RTL8139: RxBuf read val=0x%08x\n", ret));
2518 static void rtl8139_IntrMask_write(RTL8139State *s, uint32_t val)
2520 DEBUG_PRINT(("RTL8139: IntrMask write(w) val=0x%04x\n", val));
2522 /* mask unwriteable bits */
2523 val = SET_MASKED(val, 0x1e00, s->IntrMask);
2527 rtl8139_update_irq(s);
2530 static uint32_t rtl8139_IntrMask_read(RTL8139State *s)
2532 uint32_t ret = s->IntrMask;
2534 DEBUG_PRINT(("RTL8139: IntrMask read(w) val=0x%04x\n", ret));
2539 static void rtl8139_IntrStatus_write(RTL8139State *s, uint32_t val)
2541 DEBUG_PRINT(("RTL8139: IntrStatus write(w) val=0x%04x\n", val));
2545 /* writing to ISR has no effect */
2550 uint16_t newStatus = s->IntrStatus & ~val;
2552 /* mask unwriteable bits */
2553 newStatus = SET_MASKED(newStatus, 0x1e00, s->IntrStatus);
2555 /* writing 1 to interrupt status register bit clears it */
2557 rtl8139_update_irq(s);
2559 s->IntrStatus = newStatus;
2560 rtl8139_update_irq(s);
2564 static uint32_t rtl8139_IntrStatus_read(RTL8139State *s)
2566 uint32_t ret = s->IntrStatus;
2568 DEBUG_PRINT(("RTL8139: IntrStatus read(w) val=0x%04x\n", ret));
2572 /* reading ISR clears all interrupts */
2575 rtl8139_update_irq(s);
2582 static void rtl8139_MultiIntr_write(RTL8139State *s, uint32_t val)
2584 DEBUG_PRINT(("RTL8139: MultiIntr write(w) val=0x%04x\n", val));
2586 /* mask unwriteable bits */
2587 val = SET_MASKED(val, 0xf000, s->MultiIntr);
2592 static uint32_t rtl8139_MultiIntr_read(RTL8139State *s)
2594 uint32_t ret = s->MultiIntr;
2596 DEBUG_PRINT(("RTL8139: MultiIntr read(w) val=0x%04x\n", ret));
2601 static void rtl8139_io_writeb(void *opaque, uint8_t addr, uint32_t val)
2603 RTL8139State *s = opaque;
2609 case MAC0 ... MAC0+5:
2610 s->phys[addr - MAC0] = val;
2612 case MAC0+6 ... MAC0+7:
2615 case MAR0 ... MAR0+7:
2616 s->mult[addr - MAR0] = val;
2619 rtl8139_ChipCmd_write(s, val);
2622 rtl8139_Cfg9346_write(s, val);
2624 case TxConfig: /* windows driver sometimes writes using byte-lenth call */
2625 rtl8139_TxConfig_writeb(s, val);
2628 rtl8139_Config0_write(s, val);
2631 rtl8139_Config1_write(s, val);
2634 rtl8139_Config3_write(s, val);
2637 rtl8139_Config4_write(s, val);
2640 rtl8139_Config5_write(s, val);
2644 DEBUG_PRINT(("RTL8139: not implemented write(b) to MediaStatus val=0x%02x\n", val));
2648 DEBUG_PRINT(("RTL8139: HltClk write val=0x%08x\n", val));
2651 s->clock_enabled = 1;
2653 else if (val == 'H')
2655 s->clock_enabled = 0;
2660 DEBUG_PRINT(("RTL8139C+ TxThresh write(b) val=0x%02x\n", val));
2665 DEBUG_PRINT(("RTL8139C+ TxPoll write(b) val=0x%02x\n", val));
2668 DEBUG_PRINT(("RTL8139C+ TxPoll high priority transmission (not implemented)\n"));
2669 //rtl8139_cplus_transmit(s);
2673 DEBUG_PRINT(("RTL8139C+ TxPoll normal priority transmission\n"));
2674 rtl8139_cplus_transmit(s);
2680 DEBUG_PRINT(("RTL8139: not implemented write(b) addr=0x%x val=0x%02x\n", addr, val));
2685 static void rtl8139_io_writew(void *opaque, uint8_t addr, uint32_t val)
2687 RTL8139State *s = opaque;
2694 rtl8139_IntrMask_write(s, val);
2698 rtl8139_IntrStatus_write(s, val);
2702 rtl8139_MultiIntr_write(s, val);
2706 rtl8139_RxBufPtr_write(s, val);
2710 rtl8139_BasicModeCtrl_write(s, val);
2712 case BasicModeStatus:
2713 rtl8139_BasicModeStatus_write(s, val);
2716 DEBUG_PRINT(("RTL8139: NWayAdvert write(w) val=0x%04x\n", val));
2717 s->NWayAdvert = val;
2720 DEBUG_PRINT(("RTL8139: forbidden NWayLPAR write(w) val=0x%04x\n", val));
2723 DEBUG_PRINT(("RTL8139: NWayExpansion write(w) val=0x%04x\n", val));
2724 s->NWayExpansion = val;
2728 rtl8139_CpCmd_write(s, val);
2732 rtl8139_IntrMitigate_write(s, val);
2736 DEBUG_PRINT(("RTL8139: ioport write(w) addr=0x%x val=0x%04x via write(b)\n", addr, val));
2738 rtl8139_io_writeb(opaque, addr, val & 0xff);
2739 rtl8139_io_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2744 static void rtl8139_io_writel(void *opaque, uint8_t addr, uint32_t val)
2746 RTL8139State *s = opaque;
2753 DEBUG_PRINT(("RTL8139: RxMissed clearing on write\n"));
2758 rtl8139_TxConfig_write(s, val);
2762 rtl8139_RxConfig_write(s, val);
2765 case TxStatus0 ... TxStatus0+4*4-1:
2766 rtl8139_TxStatus_write(s, addr-TxStatus0, val);
2769 case TxAddr0 ... TxAddr0+4*4-1:
2770 rtl8139_TxAddr_write(s, addr-TxAddr0, val);
2774 rtl8139_RxBuf_write(s, val);
2778 DEBUG_PRINT(("RTL8139: C+ RxRing low bits write val=0x%08x\n", val));
2779 s->RxRingAddrLO = val;
2783 DEBUG_PRINT(("RTL8139: C+ RxRing high bits write val=0x%08x\n", val));
2784 s->RxRingAddrHI = val;
2788 DEBUG_PRINT(("RTL8139: TCTR Timer reset on write\n"));
2790 s->TCTR_base = qemu_get_clock(vm_clock);
2794 DEBUG_PRINT(("RTL8139: FlashReg TimerInt write val=0x%08x\n", val));
2799 DEBUG_PRINT(("RTL8139: ioport write(l) addr=0x%x val=0x%08x via write(b)\n", addr, val));
2800 rtl8139_io_writeb(opaque, addr, val & 0xff);
2801 rtl8139_io_writeb(opaque, addr + 1, (val >> 8) & 0xff);
2802 rtl8139_io_writeb(opaque, addr + 2, (val >> 16) & 0xff);
2803 rtl8139_io_writeb(opaque, addr + 3, (val >> 24) & 0xff);
2808 static uint32_t rtl8139_io_readb(void *opaque, uint8_t addr)
2810 RTL8139State *s = opaque;
2817 case MAC0 ... MAC0+5:
2818 ret = s->phys[addr - MAC0];
2820 case MAC0+6 ... MAC0+7:
2823 case MAR0 ... MAR0+7:
2824 ret = s->mult[addr - MAR0];
2827 ret = rtl8139_ChipCmd_read(s);
2830 ret = rtl8139_Cfg9346_read(s);
2833 ret = rtl8139_Config0_read(s);
2836 ret = rtl8139_Config1_read(s);
2839 ret = rtl8139_Config3_read(s);
2842 ret = rtl8139_Config4_read(s);
2845 ret = rtl8139_Config5_read(s);
2850 DEBUG_PRINT(("RTL8139: MediaStatus read 0x%x\n", ret));
2854 ret = s->clock_enabled;
2855 DEBUG_PRINT(("RTL8139: HltClk read 0x%x\n", ret));
2859 ret = RTL8139_PCI_REVID;
2860 DEBUG_PRINT(("RTL8139: PCI Revision ID read 0x%x\n", ret));
2865 DEBUG_PRINT(("RTL8139C+ TxThresh read(b) val=0x%02x\n", ret));
2868 case 0x43: /* Part of TxConfig register. Windows driver tries to read it */
2869 ret = s->TxConfig >> 24;
2870 DEBUG_PRINT(("RTL8139C TxConfig at 0x43 read(b) val=0x%02x\n", ret));
2874 DEBUG_PRINT(("RTL8139: not implemented read(b) addr=0x%x\n", addr));
2882 static uint32_t rtl8139_io_readw(void *opaque, uint8_t addr)
2884 RTL8139State *s = opaque;
2887 addr &= 0xfe; /* mask lower bit */
2892 ret = rtl8139_IntrMask_read(s);
2896 ret = rtl8139_IntrStatus_read(s);
2900 ret = rtl8139_MultiIntr_read(s);
2904 ret = rtl8139_RxBufPtr_read(s);
2908 ret = rtl8139_RxBufAddr_read(s);
2912 ret = rtl8139_BasicModeCtrl_read(s);
2914 case BasicModeStatus:
2915 ret = rtl8139_BasicModeStatus_read(s);
2918 ret = s->NWayAdvert;
2919 DEBUG_PRINT(("RTL8139: NWayAdvert read(w) val=0x%04x\n", ret));
2923 DEBUG_PRINT(("RTL8139: NWayLPAR read(w) val=0x%04x\n", ret));
2926 ret = s->NWayExpansion;
2927 DEBUG_PRINT(("RTL8139: NWayExpansion read(w) val=0x%04x\n", ret));
2931 ret = rtl8139_CpCmd_read(s);
2935 ret = rtl8139_IntrMitigate_read(s);
2939 ret = rtl8139_TSAD_read(s);
2943 ret = rtl8139_CSCR_read(s);
2947 DEBUG_PRINT(("RTL8139: ioport read(w) addr=0x%x via read(b)\n", addr));
2949 ret = rtl8139_io_readb(opaque, addr);
2950 ret |= rtl8139_io_readb(opaque, addr + 1) << 8;
2952 DEBUG_PRINT(("RTL8139: ioport read(w) addr=0x%x val=0x%04x\n", addr, ret));
2959 static uint32_t rtl8139_io_readl(void *opaque, uint8_t addr)
2961 RTL8139State *s = opaque;
2964 addr &= 0xfc; /* also mask low 2 bits */
2971 DEBUG_PRINT(("RTL8139: RxMissed read val=0x%08x\n", ret));
2975 ret = rtl8139_TxConfig_read(s);
2979 ret = rtl8139_RxConfig_read(s);
2982 case TxStatus0 ... TxStatus0+4*4-1:
2983 ret = rtl8139_TxStatus_read(s, addr-TxStatus0);
2986 case TxAddr0 ... TxAddr0+4*4-1:
2987 ret = rtl8139_TxAddr_read(s, addr-TxAddr0);
2991 ret = rtl8139_RxBuf_read(s);
2995 ret = s->RxRingAddrLO;
2996 DEBUG_PRINT(("RTL8139: C+ RxRing low bits read val=0x%08x\n", ret));
3000 ret = s->RxRingAddrHI;
3001 DEBUG_PRINT(("RTL8139: C+ RxRing high bits read val=0x%08x\n", ret));
3006 DEBUG_PRINT(("RTL8139: TCTR Timer read val=0x%08x\n", ret));
3011 DEBUG_PRINT(("RTL8139: FlashReg TimerInt read val=0x%08x\n", ret));
3015 DEBUG_PRINT(("RTL8139: ioport read(l) addr=0x%x via read(b)\n", addr));
3017 ret = rtl8139_io_readb(opaque, addr);
3018 ret |= rtl8139_io_readb(opaque, addr + 1) << 8;
3019 ret |= rtl8139_io_readb(opaque, addr + 2) << 16;
3020 ret |= rtl8139_io_readb(opaque, addr + 3) << 24;
3022 DEBUG_PRINT(("RTL8139: read(l) addr=0x%x val=%08x\n", addr, ret));
3031 static void rtl8139_ioport_writeb(void *opaque, uint32_t addr, uint32_t val)
3033 rtl8139_io_writeb(opaque, addr & 0xFF, val);
3036 static void rtl8139_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
3038 rtl8139_io_writew(opaque, addr & 0xFF, val);
3041 static void rtl8139_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
3043 rtl8139_io_writel(opaque, addr & 0xFF, val);
3046 static uint32_t rtl8139_ioport_readb(void *opaque, uint32_t addr)
3048 return rtl8139_io_readb(opaque, addr & 0xFF);
3051 static uint32_t rtl8139_ioport_readw(void *opaque, uint32_t addr)
3053 return rtl8139_io_readw(opaque, addr & 0xFF);
3056 static uint32_t rtl8139_ioport_readl(void *opaque, uint32_t addr)
3058 return rtl8139_io_readl(opaque, addr & 0xFF);
3063 static void rtl8139_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
3065 rtl8139_io_writeb(opaque, addr & 0xFF, val);
3068 static void rtl8139_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
3070 #ifdef TARGET_WORDS_BIGENDIAN
3073 rtl8139_io_writew(opaque, addr & 0xFF, val);
3076 static void rtl8139_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
3078 #ifdef TARGET_WORDS_BIGENDIAN
3081 rtl8139_io_writel(opaque, addr & 0xFF, val);
3084 static uint32_t rtl8139_mmio_readb(void *opaque, target_phys_addr_t addr)
3086 return rtl8139_io_readb(opaque, addr & 0xFF);
3089 static uint32_t rtl8139_mmio_readw(void *opaque, target_phys_addr_t addr)
3091 uint32_t val = rtl8139_io_readw(opaque, addr & 0xFF);
3092 #ifdef TARGET_WORDS_BIGENDIAN
3098 static uint32_t rtl8139_mmio_readl(void *opaque, target_phys_addr_t addr)
3100 uint32_t val = rtl8139_io_readl(opaque, addr & 0xFF);
3101 #ifdef TARGET_WORDS_BIGENDIAN
3109 static void rtl8139_save(QEMUFile* f,void* opaque)
3111 RTL8139State* s=(RTL8139State*)opaque;
3114 pci_device_save(s->pci_dev, f);
3116 qemu_put_buffer(f, s->phys, 6);
3117 qemu_put_buffer(f, s->mult, 8);
3121 qemu_put_be32s(f, &s->TxStatus[i]); /* TxStatus0 */
3125 qemu_put_be32s(f, &s->TxAddr[i]); /* TxAddr0 */
3128 qemu_put_be32s(f, &s->RxBuf); /* Receive buffer */
3129 qemu_put_be32s(f, &s->RxBufferSize);/* internal variable, receive ring buffer size in C mode */
3130 qemu_put_be32s(f, &s->RxBufPtr);
3131 qemu_put_be32s(f, &s->RxBufAddr);
3133 qemu_put_be16s(f, &s->IntrStatus);
3134 qemu_put_be16s(f, &s->IntrMask);
3136 qemu_put_be32s(f, &s->TxConfig);
3137 qemu_put_be32s(f, &s->RxConfig);
3138 qemu_put_be32s(f, &s->RxMissed);
3139 qemu_put_be16s(f, &s->CSCR);
3141 qemu_put_8s(f, &s->Cfg9346);
3142 qemu_put_8s(f, &s->Config0);
3143 qemu_put_8s(f, &s->Config1);
3144 qemu_put_8s(f, &s->Config3);
3145 qemu_put_8s(f, &s->Config4);
3146 qemu_put_8s(f, &s->Config5);
3148 qemu_put_8s(f, &s->clock_enabled);
3149 qemu_put_8s(f, &s->bChipCmdState);
3151 qemu_put_be16s(f, &s->MultiIntr);
3153 qemu_put_be16s(f, &s->BasicModeCtrl);
3154 qemu_put_be16s(f, &s->BasicModeStatus);
3155 qemu_put_be16s(f, &s->NWayAdvert);
3156 qemu_put_be16s(f, &s->NWayLPAR);
3157 qemu_put_be16s(f, &s->NWayExpansion);
3159 qemu_put_be16s(f, &s->CpCmd);
3160 qemu_put_8s(f, &s->TxThresh);
3163 qemu_put_be32s(f, &i); /* unused. */
3164 qemu_put_buffer(f, s->macaddr, 6);
3165 qemu_put_be32(f, s->rtl8139_mmio_io_addr);
3167 qemu_put_be32s(f, &s->currTxDesc);
3168 qemu_put_be32s(f, &s->currCPlusRxDesc);
3169 qemu_put_be32s(f, &s->currCPlusTxDesc);
3170 qemu_put_be32s(f, &s->RxRingAddrLO);
3171 qemu_put_be32s(f, &s->RxRingAddrHI);
3173 for (i=0; i<EEPROM_9346_SIZE; ++i)
3175 qemu_put_be16s(f, &s->eeprom.contents[i]);
3177 qemu_put_be32(f, s->eeprom.mode);
3178 qemu_put_be32s(f, &s->eeprom.tick);
3179 qemu_put_8s(f, &s->eeprom.address);
3180 qemu_put_be16s(f, &s->eeprom.input);
3181 qemu_put_be16s(f, &s->eeprom.output);
3183 qemu_put_8s(f, &s->eeprom.eecs);
3184 qemu_put_8s(f, &s->eeprom.eesk);
3185 qemu_put_8s(f, &s->eeprom.eedi);
3186 qemu_put_8s(f, &s->eeprom.eedo);
3188 qemu_put_be32s(f, &s->TCTR);
3189 qemu_put_be32s(f, &s->TimerInt);
3190 qemu_put_be64(f, s->TCTR_base);
3192 RTL8139TallyCounters_save(f, &s->tally_counters);
3195 static int rtl8139_load(QEMUFile* f,void* opaque,int version_id)
3197 RTL8139State* s=(RTL8139State*)opaque;
3201 /* just 2 versions for now */
3205 if (version_id >= 3) {
3206 ret = pci_device_load(s->pci_dev, f);
3211 /* saved since version 1 */
3212 qemu_get_buffer(f, s->phys, 6);
3213 qemu_get_buffer(f, s->mult, 8);
3217 qemu_get_be32s(f, &s->TxStatus[i]); /* TxStatus0 */
3221 qemu_get_be32s(f, &s->TxAddr[i]); /* TxAddr0 */
3224 qemu_get_be32s(f, &s->RxBuf); /* Receive buffer */
3225 qemu_get_be32s(f, &s->RxBufferSize);/* internal variable, receive ring buffer size in C mode */
3226 qemu_get_be32s(f, &s->RxBufPtr);
3227 qemu_get_be32s(f, &s->RxBufAddr);
3229 qemu_get_be16s(f, &s->IntrStatus);
3230 qemu_get_be16s(f, &s->IntrMask);
3232 qemu_get_be32s(f, &s->TxConfig);
3233 qemu_get_be32s(f, &s->RxConfig);
3234 qemu_get_be32s(f, &s->RxMissed);
3235 qemu_get_be16s(f, &s->CSCR);
3237 qemu_get_8s(f, &s->Cfg9346);
3238 qemu_get_8s(f, &s->Config0);
3239 qemu_get_8s(f, &s->Config1);
3240 qemu_get_8s(f, &s->Config3);
3241 qemu_get_8s(f, &s->Config4);
3242 qemu_get_8s(f, &s->Config5);
3244 qemu_get_8s(f, &s->clock_enabled);
3245 qemu_get_8s(f, &s->bChipCmdState);
3247 qemu_get_be16s(f, &s->MultiIntr);
3249 qemu_get_be16s(f, &s->BasicModeCtrl);
3250 qemu_get_be16s(f, &s->BasicModeStatus);
3251 qemu_get_be16s(f, &s->NWayAdvert);
3252 qemu_get_be16s(f, &s->NWayLPAR);
3253 qemu_get_be16s(f, &s->NWayExpansion);
3255 qemu_get_be16s(f, &s->CpCmd);
3256 qemu_get_8s(f, &s->TxThresh);
3258 qemu_get_be32s(f, &i); /* unused. */
3259 qemu_get_buffer(f, s->macaddr, 6);
3260 s->rtl8139_mmio_io_addr=qemu_get_be32(f);
3262 qemu_get_be32s(f, &s->currTxDesc);
3263 qemu_get_be32s(f, &s->currCPlusRxDesc);
3264 qemu_get_be32s(f, &s->currCPlusTxDesc);
3265 qemu_get_be32s(f, &s->RxRingAddrLO);
3266 qemu_get_be32s(f, &s->RxRingAddrHI);
3268 for (i=0; i<EEPROM_9346_SIZE; ++i)
3270 qemu_get_be16s(f, &s->eeprom.contents[i]);
3272 s->eeprom.mode=qemu_get_be32(f);
3273 qemu_get_be32s(f, &s->eeprom.tick);
3274 qemu_get_8s(f, &s->eeprom.address);
3275 qemu_get_be16s(f, &s->eeprom.input);
3276 qemu_get_be16s(f, &s->eeprom.output);
3278 qemu_get_8s(f, &s->eeprom.eecs);
3279 qemu_get_8s(f, &s->eeprom.eesk);
3280 qemu_get_8s(f, &s->eeprom.eedi);
3281 qemu_get_8s(f, &s->eeprom.eedo);
3283 /* saved since version 2 */
3284 if (version_id >= 2)
3286 qemu_get_be32s(f, &s->TCTR);
3287 qemu_get_be32s(f, &s->TimerInt);
3288 s->TCTR_base=qemu_get_be64(f);
3290 RTL8139TallyCounters_load(f, &s->tally_counters);
3294 /* not saved, use default */
3299 RTL8139TallyCounters_clear(&s->tally_counters);
3305 /***********************************************************/
3306 /* PCI RTL8139 definitions */
3308 typedef struct PCIRTL8139State {
3310 RTL8139State rtl8139;
3313 static void rtl8139_mmio_map(PCIDevice *pci_dev, int region_num,
3314 uint32_t addr, uint32_t size, int type)
3316 PCIRTL8139State *d = (PCIRTL8139State *)pci_dev;
3317 RTL8139State *s = &d->rtl8139;
3319 cpu_register_physical_memory(addr + 0, 0x100, s->rtl8139_mmio_io_addr);
3322 static void rtl8139_ioport_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 register_ioport_write(addr, 0x100, 1, rtl8139_ioport_writeb, s);
3329 register_ioport_read( addr, 0x100, 1, rtl8139_ioport_readb, s);
3331 register_ioport_write(addr, 0x100, 2, rtl8139_ioport_writew, s);
3332 register_ioport_read( addr, 0x100, 2, rtl8139_ioport_readw, s);
3334 register_ioport_write(addr, 0x100, 4, rtl8139_ioport_writel, s);
3335 register_ioport_read( addr, 0x100, 4, rtl8139_ioport_readl, s);
3338 static CPUReadMemoryFunc *rtl8139_mmio_read[3] = {
3344 static CPUWriteMemoryFunc *rtl8139_mmio_write[3] = {
3345 rtl8139_mmio_writeb,
3346 rtl8139_mmio_writew,
3347 rtl8139_mmio_writel,
3350 static inline int64_t rtl8139_get_next_tctr_time(RTL8139State *s, int64_t current_time)
3352 int64_t next_time = current_time +
3353 muldiv64(1, ticks_per_sec, PCI_FREQUENCY);
3354 if (next_time <= current_time)
3355 next_time = current_time + 1;
3359 #ifdef RTL8139_ONBOARD_TIMER
3360 static void rtl8139_timer(void *opaque)
3362 RTL8139State *s = opaque;
3369 if (!s->clock_enabled)
3371 DEBUG_PRINT(("RTL8139: >>> timer: clock is not running\n"));
3375 curr_time = qemu_get_clock(vm_clock);
3377 curr_tick = muldiv64(curr_time - s->TCTR_base, PCI_FREQUENCY, ticks_per_sec);
3379 if (s->TimerInt && curr_tick >= s->TimerInt)
3381 if (s->TCTR < s->TimerInt || curr_tick < s->TCTR)
3387 s->TCTR = curr_tick;
3389 // DEBUG_PRINT(("RTL8139: >>> timer: tick=%08u\n", s->TCTR));
3393 DEBUG_PRINT(("RTL8139: >>> timer: timeout tick=%08u\n", s->TCTR));
3394 s->IntrStatus |= PCSTimeout;
3395 rtl8139_update_irq(s);
3398 qemu_mod_timer(s->timer,
3399 rtl8139_get_next_tctr_time(s,curr_time));
3401 #endif /* RTL8139_ONBOARD_TIMER */
3403 void pci_rtl8139_init(PCIBus *bus, NICInfo *nd, int devfn)
3409 d = (PCIRTL8139State *)pci_register_device(bus,
3410 "RTL8139", sizeof(PCIRTL8139State),
3413 pci_conf = d->dev.config;
3414 pci_conf[0x00] = 0xec; /* Realtek 8139 */
3415 pci_conf[0x01] = 0x10;
3416 pci_conf[0x02] = 0x39;
3417 pci_conf[0x03] = 0x81;
3418 pci_conf[0x04] = 0x05; /* command = I/O space, Bus Master */
3419 pci_conf[0x08] = RTL8139_PCI_REVID; /* PCI revision ID; >=0x20 is for 8139C+ */
3420 pci_conf[0x0a] = 0x00; /* ethernet network controller */
3421 pci_conf[0x0b] = 0x02;
3422 pci_conf[0x0e] = 0x00; /* header_type */
3423 pci_conf[0x3d] = 1; /* interrupt pin 0 */
3424 pci_conf[0x34] = 0xdc;
3428 /* I/O handler for memory-mapped I/O */
3429 s->rtl8139_mmio_io_addr =
3430 cpu_register_io_memory(0, rtl8139_mmio_read, rtl8139_mmio_write, s);
3432 pci_register_io_region(&d->dev, 0, 0x100,
3433 PCI_ADDRESS_SPACE_IO, rtl8139_ioport_map);
3435 pci_register_io_region(&d->dev, 1, 0x100,
3436 PCI_ADDRESS_SPACE_MEM, rtl8139_mmio_map);
3438 s->pci_dev = (PCIDevice *)d;
3439 memcpy(s->macaddr, nd->macaddr, 6);
3441 s->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name,
3442 rtl8139_receive, rtl8139_can_receive, s);
3444 qemu_format_nic_info_str(s->vc, s->macaddr);
3446 s->cplus_txbuffer = NULL;
3447 s->cplus_txbuffer_len = 0;
3448 s->cplus_txbuffer_offset = 0;
3450 register_savevm("rtl8139", -1, 3, rtl8139_save, rtl8139_load, s);
3452 #ifdef RTL8139_ONBOARD_TIMER
3453 s->timer = qemu_new_timer(vm_clock, rtl8139_timer, s);
3455 qemu_mod_timer(s->timer,
3456 rtl8139_get_next_tctr_time(s,qemu_get_clock(vm_clock)));
3457 #endif /* RTL8139_ONBOARD_TIMER */