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
{
427 uint8_t phys
[8]; /* mac address */
428 uint8_t mult
[8]; /* multicast mask array */
430 uint32_t TxStatus
[4]; /* TxStatus0 in C mode*/ /* also DTCCR[0] and DTCCR[1] in C+ mode */
431 uint32_t TxAddr
[4]; /* TxAddr0 */
432 uint32_t RxBuf
; /* Receive buffer */
433 uint32_t RxBufferSize
;/* internal variable, receive ring buffer size in C mode */
453 uint8_t clock_enabled
;
454 uint8_t bChipCmdState
;
458 uint16_t BasicModeCtrl
;
459 uint16_t BasicModeStatus
;
462 uint16_t NWayExpansion
;
469 int rtl8139_mmio_io_addr
;
475 uint32_t cplus_enabled
;
477 uint32_t currCPlusRxDesc
;
478 uint32_t currCPlusTxDesc
;
480 uint32_t RxRingAddrLO
;
481 uint32_t RxRingAddrHI
;
490 RTL8139TallyCounters tally_counters
;
492 /* Non-persistent data */
493 uint8_t *cplus_txbuffer
;
494 int cplus_txbuffer_len
;
495 int cplus_txbuffer_offset
;
497 /* PCI interrupt timer */
502 static void prom9346_decode_command(EEprom9346
*eeprom
, uint8_t command
)
504 DEBUG_PRINT(("RTL8139: eeprom command 0x%02x\n", command
));
506 switch (command
& Chip9346_op_mask
)
508 case Chip9346_op_read
:
510 eeprom
->address
= command
& EEPROM_9346_ADDR_MASK
;
511 eeprom
->output
= eeprom
->contents
[eeprom
->address
];
514 eeprom
->mode
= Chip9346_data_read
;
515 DEBUG_PRINT(("RTL8139: eeprom read from address 0x%02x data=0x%04x\n",
516 eeprom
->address
, eeprom
->output
));
520 case Chip9346_op_write
:
522 eeprom
->address
= command
& EEPROM_9346_ADDR_MASK
;
525 eeprom
->mode
= Chip9346_none
; /* Chip9346_data_write */
526 DEBUG_PRINT(("RTL8139: eeprom begin write to address 0x%02x\n",
531 eeprom
->mode
= Chip9346_none
;
532 switch (command
& Chip9346_op_ext_mask
)
534 case Chip9346_op_write_enable
:
535 DEBUG_PRINT(("RTL8139: eeprom write enabled\n"));
537 case Chip9346_op_write_all
:
538 DEBUG_PRINT(("RTL8139: eeprom begin write all\n"));
540 case Chip9346_op_write_disable
:
541 DEBUG_PRINT(("RTL8139: eeprom write disabled\n"));
548 static void prom9346_shift_clock(EEprom9346
*eeprom
)
550 int bit
= eeprom
->eedi
?1:0;
554 DEBUG_PRINT(("eeprom: tick %d eedi=%d eedo=%d\n", eeprom
->tick
, eeprom
->eedi
, eeprom
->eedo
));
556 switch (eeprom
->mode
)
558 case Chip9346_enter_command_mode
:
561 eeprom
->mode
= Chip9346_read_command
;
564 DEBUG_PRINT(("eeprom: +++ synchronized, begin command read\n"));
568 case Chip9346_read_command
:
569 eeprom
->input
= (eeprom
->input
<< 1) | (bit
& 1);
570 if (eeprom
->tick
== 8)
572 prom9346_decode_command(eeprom
, eeprom
->input
& 0xff);
576 case Chip9346_data_read
:
577 eeprom
->eedo
= (eeprom
->output
& 0x8000)?1:0;
578 eeprom
->output
<<= 1;
579 if (eeprom
->tick
== 16)
582 // the FreeBSD drivers (rl and re) don't explicitly toggle
583 // CS between reads (or does setting Cfg9346 to 0 count too?),
584 // so we need to enter wait-for-command state here
585 eeprom
->mode
= Chip9346_enter_command_mode
;
589 DEBUG_PRINT(("eeprom: +++ end of read, awaiting next command\n"));
591 // original behaviour
593 eeprom
->address
&= EEPROM_9346_ADDR_MASK
;
594 eeprom
->output
= eeprom
->contents
[eeprom
->address
];
597 DEBUG_PRINT(("eeprom: +++ read next address 0x%02x data=0x%04x\n",
598 eeprom
->address
, eeprom
->output
));
603 case Chip9346_data_write
:
604 eeprom
->input
= (eeprom
->input
<< 1) | (bit
& 1);
605 if (eeprom
->tick
== 16)
607 DEBUG_PRINT(("RTL8139: eeprom write to address 0x%02x data=0x%04x\n",
608 eeprom
->address
, eeprom
->input
));
610 eeprom
->contents
[eeprom
->address
] = eeprom
->input
;
611 eeprom
->mode
= Chip9346_none
; /* waiting for next command after CS cycle */
617 case Chip9346_data_write_all
:
618 eeprom
->input
= (eeprom
->input
<< 1) | (bit
& 1);
619 if (eeprom
->tick
== 16)
622 for (i
= 0; i
< EEPROM_9346_SIZE
; i
++)
624 eeprom
->contents
[i
] = eeprom
->input
;
626 DEBUG_PRINT(("RTL8139: eeprom filled with data=0x%04x\n",
629 eeprom
->mode
= Chip9346_enter_command_mode
;
640 static int prom9346_get_wire(RTL8139State
*s
)
642 EEprom9346
*eeprom
= &s
->eeprom
;
649 /* FIXME: This should be merged into/replaced by eeprom93xx.c. */
650 static void prom9346_set_wire(RTL8139State
*s
, int eecs
, int eesk
, int eedi
)
652 EEprom9346
*eeprom
= &s
->eeprom
;
653 uint8_t old_eecs
= eeprom
->eecs
;
654 uint8_t old_eesk
= eeprom
->eesk
;
660 DEBUG_PRINT(("eeprom: +++ wires CS=%d SK=%d DI=%d DO=%d\n",
661 eeprom
->eecs
, eeprom
->eesk
, eeprom
->eedi
, eeprom
->eedo
));
663 if (!old_eecs
&& eecs
)
665 /* Synchronize start */
669 eeprom
->mode
= Chip9346_enter_command_mode
;
671 DEBUG_PRINT(("=== eeprom: begin access, enter command mode\n"));
676 DEBUG_PRINT(("=== eeprom: end access\n"));
680 if (!old_eesk
&& eesk
)
683 prom9346_shift_clock(eeprom
);
687 static void rtl8139_update_irq(RTL8139State
*s
)
690 isr
= (s
->IntrStatus
& s
->IntrMask
) & 0xffff;
692 DEBUG_PRINT(("RTL8139: Set IRQ to %d (%04x %04x)\n",
693 isr
? 1 : 0, s
->IntrStatus
, s
->IntrMask
));
695 qemu_set_irq(s
->dev
.irq
[0], (isr
!= 0));
698 #define POLYNOMIAL 0x04c11db6
702 static int compute_mcast_idx(const uint8_t *ep
)
709 for (i
= 0; i
< 6; i
++) {
711 for (j
= 0; j
< 8; j
++) {
712 carry
= ((crc
& 0x80000000L
) ? 1 : 0) ^ (b
& 0x01);
716 crc
= ((crc
^ POLYNOMIAL
) | carry
);
722 static int rtl8139_RxWrap(RTL8139State
*s
)
724 /* wrapping enabled; assume 1.5k more buffer space if size < 65536 */
725 return (s
->RxConfig
& (1 << 7));
728 static int rtl8139_receiver_enabled(RTL8139State
*s
)
730 return s
->bChipCmdState
& CmdRxEnb
;
733 static int rtl8139_transmitter_enabled(RTL8139State
*s
)
735 return s
->bChipCmdState
& CmdTxEnb
;
738 static int rtl8139_cp_receiver_enabled(RTL8139State
*s
)
740 return s
->CpCmd
& CPlusRxEnb
;
743 static int rtl8139_cp_transmitter_enabled(RTL8139State
*s
)
745 return s
->CpCmd
& CPlusTxEnb
;
748 static void rtl8139_write_buffer(RTL8139State
*s
, const void *buf
, int size
)
750 if (s
->RxBufAddr
+ size
> s
->RxBufferSize
)
752 int wrapped
= MOD2(s
->RxBufAddr
+ size
, s
->RxBufferSize
);
754 /* write packet data */
755 if (wrapped
&& !(s
->RxBufferSize
< 65536 && rtl8139_RxWrap(s
)))
757 DEBUG_PRINT((">>> RTL8139: rx packet wrapped in buffer at %d\n", size
-wrapped
));
761 cpu_physical_memory_write( s
->RxBuf
+ s
->RxBufAddr
,
765 /* reset buffer pointer */
768 cpu_physical_memory_write( s
->RxBuf
+ s
->RxBufAddr
,
769 buf
+ (size
-wrapped
), wrapped
);
771 s
->RxBufAddr
= wrapped
;
777 /* non-wrapping path or overwrapping enabled */
778 cpu_physical_memory_write( s
->RxBuf
+ s
->RxBufAddr
, buf
, size
);
780 s
->RxBufAddr
+= size
;
783 #define MIN_BUF_SIZE 60
784 static inline target_phys_addr_t
rtl8139_addr64(uint32_t low
, uint32_t high
)
786 #if TARGET_PHYS_ADDR_BITS > 32
787 return low
| ((target_phys_addr_t
)high
<< 32);
793 static int rtl8139_can_receive(VLANClientState
*vc
)
795 RTL8139State
*s
= vc
->opaque
;
798 /* Receive (drop) packets if card is disabled. */
799 if (!s
->clock_enabled
)
801 if (!rtl8139_receiver_enabled(s
))
804 if (rtl8139_cp_receiver_enabled(s
)) {
805 /* ??? Flow control not implemented in c+ mode.
806 This is a hack to work around slirp deficiencies anyway. */
809 avail
= MOD2(s
->RxBufferSize
+ s
->RxBufPtr
- s
->RxBufAddr
,
811 return (avail
== 0 || avail
>= 1514);
815 static ssize_t
rtl8139_do_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size_
, int do_interrupt
)
817 RTL8139State
*s
= vc
->opaque
;
820 uint32_t packet_header
= 0;
823 static const uint8_t broadcast_macaddr
[6] =
824 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
826 DEBUG_PRINT((">>> RTL8139: received len=%d\n", size
));
828 /* test if board clock is stopped */
829 if (!s
->clock_enabled
)
831 DEBUG_PRINT(("RTL8139: stopped ==========================\n"));
835 /* first check if receiver is enabled */
837 if (!rtl8139_receiver_enabled(s
))
839 DEBUG_PRINT(("RTL8139: receiver disabled ================\n"));
843 /* XXX: check this */
844 if (s
->RxConfig
& AcceptAllPhys
) {
845 /* promiscuous: receive all */
846 DEBUG_PRINT((">>> RTL8139: packet received in promiscuous mode\n"));
849 if (!memcmp(buf
, broadcast_macaddr
, 6)) {
850 /* broadcast address */
851 if (!(s
->RxConfig
& AcceptBroadcast
))
853 DEBUG_PRINT((">>> RTL8139: broadcast packet rejected\n"));
855 /* update tally counter */
856 ++s
->tally_counters
.RxERR
;
861 packet_header
|= RxBroadcast
;
863 DEBUG_PRINT((">>> RTL8139: broadcast packet received\n"));
865 /* update tally counter */
866 ++s
->tally_counters
.RxOkBrd
;
868 } else if (buf
[0] & 0x01) {
870 if (!(s
->RxConfig
& AcceptMulticast
))
872 DEBUG_PRINT((">>> RTL8139: multicast packet rejected\n"));
874 /* update tally counter */
875 ++s
->tally_counters
.RxERR
;
880 int mcast_idx
= compute_mcast_idx(buf
);
882 if (!(s
->mult
[mcast_idx
>> 3] & (1 << (mcast_idx
& 7))))
884 DEBUG_PRINT((">>> RTL8139: multicast address mismatch\n"));
886 /* update tally counter */
887 ++s
->tally_counters
.RxERR
;
892 packet_header
|= RxMulticast
;
894 DEBUG_PRINT((">>> RTL8139: multicast packet received\n"));
896 /* update tally counter */
897 ++s
->tally_counters
.RxOkMul
;
899 } else if (s
->phys
[0] == buf
[0] &&
900 s
->phys
[1] == buf
[1] &&
901 s
->phys
[2] == buf
[2] &&
902 s
->phys
[3] == buf
[3] &&
903 s
->phys
[4] == buf
[4] &&
904 s
->phys
[5] == buf
[5]) {
906 if (!(s
->RxConfig
& AcceptMyPhys
))
908 DEBUG_PRINT((">>> RTL8139: rejecting physical address matching packet\n"));
910 /* update tally counter */
911 ++s
->tally_counters
.RxERR
;
916 packet_header
|= RxPhysical
;
918 DEBUG_PRINT((">>> RTL8139: physical address matching packet received\n"));
920 /* update tally counter */
921 ++s
->tally_counters
.RxOkPhy
;
925 DEBUG_PRINT((">>> RTL8139: unknown packet\n"));
927 /* update tally counter */
928 ++s
->tally_counters
.RxERR
;
934 /* if too small buffer, then expand it */
935 if (size
< MIN_BUF_SIZE
) {
936 memcpy(buf1
, buf
, size
);
937 memset(buf1
+ size
, 0, MIN_BUF_SIZE
- size
);
942 if (rtl8139_cp_receiver_enabled(s
))
944 DEBUG_PRINT(("RTL8139: in C+ Rx mode ================\n"));
946 /* begin C+ receiver mode */
948 /* w0 ownership flag */
949 #define CP_RX_OWN (1<<31)
950 /* w0 end of ring flag */
951 #define CP_RX_EOR (1<<30)
952 /* w0 bits 0...12 : buffer size */
953 #define CP_RX_BUFFER_SIZE_MASK ((1<<13) - 1)
954 /* w1 tag available flag */
955 #define CP_RX_TAVA (1<<16)
956 /* w1 bits 0...15 : VLAN tag */
957 #define CP_RX_VLAN_TAG_MASK ((1<<16) - 1)
958 /* w2 low 32bit of Rx buffer ptr */
959 /* w3 high 32bit of Rx buffer ptr */
961 int descriptor
= s
->currCPlusRxDesc
;
962 target_phys_addr_t cplus_rx_ring_desc
;
964 cplus_rx_ring_desc
= rtl8139_addr64(s
->RxRingAddrLO
, s
->RxRingAddrHI
);
965 cplus_rx_ring_desc
+= 16 * descriptor
;
967 DEBUG_PRINT(("RTL8139: +++ C+ mode reading RX descriptor %d from host memory at %08x %08x = %016" PRIx64
"\n",
968 descriptor
, s
->RxRingAddrHI
, s
->RxRingAddrLO
, (uint64_t)cplus_rx_ring_desc
));
970 uint32_t val
, rxdw0
,rxdw1
,rxbufLO
,rxbufHI
;
972 cpu_physical_memory_read(cplus_rx_ring_desc
, (uint8_t *)&val
, 4);
973 rxdw0
= le32_to_cpu(val
);
974 cpu_physical_memory_read(cplus_rx_ring_desc
+4, (uint8_t *)&val
, 4);
975 rxdw1
= le32_to_cpu(val
);
976 cpu_physical_memory_read(cplus_rx_ring_desc
+8, (uint8_t *)&val
, 4);
977 rxbufLO
= le32_to_cpu(val
);
978 cpu_physical_memory_read(cplus_rx_ring_desc
+12, (uint8_t *)&val
, 4);
979 rxbufHI
= le32_to_cpu(val
);
981 DEBUG_PRINT(("RTL8139: +++ C+ mode RX descriptor %d %08x %08x %08x %08x\n",
983 rxdw0
, rxdw1
, rxbufLO
, rxbufHI
));
985 if (!(rxdw0
& CP_RX_OWN
))
987 DEBUG_PRINT(("RTL8139: C+ Rx mode : descriptor %d is owned by host\n", descriptor
));
989 s
->IntrStatus
|= RxOverflow
;
992 /* update tally counter */
993 ++s
->tally_counters
.RxERR
;
994 ++s
->tally_counters
.MissPkt
;
996 rtl8139_update_irq(s
);
1000 uint32_t rx_space
= rxdw0
& CP_RX_BUFFER_SIZE_MASK
;
1002 /* TODO: scatter the packet over available receive ring descriptors space */
1004 if (size
+4 > rx_space
)
1006 DEBUG_PRINT(("RTL8139: C+ Rx mode : descriptor %d size %d received %d + 4\n",
1007 descriptor
, rx_space
, size
));
1009 s
->IntrStatus
|= RxOverflow
;
1012 /* update tally counter */
1013 ++s
->tally_counters
.RxERR
;
1014 ++s
->tally_counters
.MissPkt
;
1016 rtl8139_update_irq(s
);
1020 target_phys_addr_t rx_addr
= rtl8139_addr64(rxbufLO
, rxbufHI
);
1022 /* receive/copy to target memory */
1023 cpu_physical_memory_write( rx_addr
, buf
, size
);
1025 if (s
->CpCmd
& CPlusRxChkSum
)
1027 /* do some packet checksumming */
1030 /* write checksum */
1031 #if defined (RTL8139_CALCULATE_RXCRC)
1032 val
= cpu_to_le32(crc32(0, buf
, size
));
1036 cpu_physical_memory_write( rx_addr
+size
, (uint8_t *)&val
, 4);
1038 /* first segment of received packet flag */
1039 #define CP_RX_STATUS_FS (1<<29)
1040 /* last segment of received packet flag */
1041 #define CP_RX_STATUS_LS (1<<28)
1042 /* multicast packet flag */
1043 #define CP_RX_STATUS_MAR (1<<26)
1044 /* physical-matching packet flag */
1045 #define CP_RX_STATUS_PAM (1<<25)
1046 /* broadcast packet flag */
1047 #define CP_RX_STATUS_BAR (1<<24)
1048 /* runt packet flag */
1049 #define CP_RX_STATUS_RUNT (1<<19)
1050 /* crc error flag */
1051 #define CP_RX_STATUS_CRC (1<<18)
1052 /* IP checksum error flag */
1053 #define CP_RX_STATUS_IPF (1<<15)
1054 /* UDP checksum error flag */
1055 #define CP_RX_STATUS_UDPF (1<<14)
1056 /* TCP checksum error flag */
1057 #define CP_RX_STATUS_TCPF (1<<13)
1059 /* transfer ownership to target */
1060 rxdw0
&= ~CP_RX_OWN
;
1062 /* set first segment bit */
1063 rxdw0
|= CP_RX_STATUS_FS
;
1065 /* set last segment bit */
1066 rxdw0
|= CP_RX_STATUS_LS
;
1068 /* set received packet type flags */
1069 if (packet_header
& RxBroadcast
)
1070 rxdw0
|= CP_RX_STATUS_BAR
;
1071 if (packet_header
& RxMulticast
)
1072 rxdw0
|= CP_RX_STATUS_MAR
;
1073 if (packet_header
& RxPhysical
)
1074 rxdw0
|= CP_RX_STATUS_PAM
;
1076 /* set received size */
1077 rxdw0
&= ~CP_RX_BUFFER_SIZE_MASK
;
1080 /* reset VLAN tag flag */
1081 rxdw1
&= ~CP_RX_TAVA
;
1083 /* update ring data */
1084 val
= cpu_to_le32(rxdw0
);
1085 cpu_physical_memory_write(cplus_rx_ring_desc
, (uint8_t *)&val
, 4);
1086 val
= cpu_to_le32(rxdw1
);
1087 cpu_physical_memory_write(cplus_rx_ring_desc
+4, (uint8_t *)&val
, 4);
1089 /* update tally counter */
1090 ++s
->tally_counters
.RxOk
;
1092 /* seek to next Rx descriptor */
1093 if (rxdw0
& CP_RX_EOR
)
1095 s
->currCPlusRxDesc
= 0;
1099 ++s
->currCPlusRxDesc
;
1102 DEBUG_PRINT(("RTL8139: done C+ Rx mode ----------------\n"));
1107 DEBUG_PRINT(("RTL8139: in ring Rx mode ================\n"));
1109 /* begin ring receiver mode */
1110 int avail
= MOD2(s
->RxBufferSize
+ s
->RxBufPtr
- s
->RxBufAddr
, s
->RxBufferSize
);
1112 /* if receiver buffer is empty then avail == 0 */
1114 if (avail
!= 0 && size
+ 8 >= avail
)
1116 DEBUG_PRINT(("rx overflow: rx buffer length %d head 0x%04x read 0x%04x === available 0x%04x need 0x%04x\n",
1117 s
->RxBufferSize
, s
->RxBufAddr
, s
->RxBufPtr
, avail
, size
+ 8));
1119 s
->IntrStatus
|= RxOverflow
;
1121 rtl8139_update_irq(s
);
1125 packet_header
|= RxStatusOK
;
1127 packet_header
|= (((size
+4) << 16) & 0xffff0000);
1130 uint32_t val
= cpu_to_le32(packet_header
);
1132 rtl8139_write_buffer(s
, (uint8_t *)&val
, 4);
1134 rtl8139_write_buffer(s
, buf
, size
);
1136 /* write checksum */
1137 #if defined (RTL8139_CALCULATE_RXCRC)
1138 val
= cpu_to_le32(crc32(0, buf
, size
));
1143 rtl8139_write_buffer(s
, (uint8_t *)&val
, 4);
1145 /* correct buffer write pointer */
1146 s
->RxBufAddr
= MOD2((s
->RxBufAddr
+ 3) & ~0x3, s
->RxBufferSize
);
1148 /* now we can signal we have received something */
1150 DEBUG_PRINT((" received: rx buffer length %d head 0x%04x read 0x%04x\n",
1151 s
->RxBufferSize
, s
->RxBufAddr
, s
->RxBufPtr
));
1154 s
->IntrStatus
|= RxOK
;
1158 rtl8139_update_irq(s
);
1164 static ssize_t
rtl8139_receive(VLANClientState
*vc
, const uint8_t *buf
, size_t size
)
1166 return rtl8139_do_receive(vc
, buf
, size
, 1);
1169 static void rtl8139_reset_rxring(RTL8139State
*s
, uint32_t bufferSize
)
1171 s
->RxBufferSize
= bufferSize
;
1176 static void rtl8139_reset(void *opaque
)
1178 RTL8139State
*s
= opaque
;
1181 /* restore MAC address */
1182 memcpy(s
->phys
, s
->macaddr
, 6);
1184 /* reset interrupt mask */
1188 rtl8139_update_irq(s
);
1190 /* prepare eeprom */
1191 s
->eeprom
.contents
[0] = 0x8129;
1193 // PCI vendor and device ID should be mirrored here
1194 s
->eeprom
.contents
[1] = PCI_VENDOR_ID_REALTEK
;
1195 s
->eeprom
.contents
[2] = PCI_DEVICE_ID_REALTEK_8139
;
1198 s
->eeprom
.contents
[7] = s
->macaddr
[0] | s
->macaddr
[1] << 8;
1199 s
->eeprom
.contents
[8] = s
->macaddr
[2] | s
->macaddr
[3] << 8;
1200 s
->eeprom
.contents
[9] = s
->macaddr
[4] | s
->macaddr
[5] << 8;
1202 /* mark all status registers as owned by host */
1203 for (i
= 0; i
< 4; ++i
)
1205 s
->TxStatus
[i
] = TxHostOwns
;
1209 s
->currCPlusRxDesc
= 0;
1210 s
->currCPlusTxDesc
= 0;
1212 s
->RxRingAddrLO
= 0;
1213 s
->RxRingAddrHI
= 0;
1217 rtl8139_reset_rxring(s
, 8192);
1223 // s->TxConfig |= HW_REVID(1, 0, 0, 0, 0, 0, 0); // RTL-8139 HasHltClk
1224 s
->clock_enabled
= 0;
1226 s
->TxConfig
|= HW_REVID(1, 1, 1, 0, 1, 1, 0); // RTL-8139C+ HasLWake
1227 s
->clock_enabled
= 1;
1230 s
->bChipCmdState
= CmdReset
; /* RxBufEmpty bit is calculated on read from ChipCmd */;
1232 /* set initial state data */
1233 s
->Config0
= 0x0; /* No boot ROM */
1234 s
->Config1
= 0xC; /* IO mapped and MEM mapped registers available */
1235 s
->Config3
= 0x1; /* fast back-to-back compatible */
1238 s
->CSCR
= CSCR_F_LINK_100
| CSCR_HEART_BIT
| CSCR_LD
;
1240 s
->CpCmd
= 0x0; /* reset C+ mode */
1241 s
->cplus_enabled
= 0;
1244 // s->BasicModeCtrl = 0x3100; // 100Mbps, full duplex, autonegotiation
1245 // s->BasicModeCtrl = 0x2100; // 100Mbps, full duplex
1246 s
->BasicModeCtrl
= 0x1000; // autonegotiation
1248 s
->BasicModeStatus
= 0x7809;
1249 //s->BasicModeStatus |= 0x0040; /* UTP medium */
1250 s
->BasicModeStatus
|= 0x0020; /* autonegotiation completed */
1251 s
->BasicModeStatus
|= 0x0004; /* link is up */
1253 s
->NWayAdvert
= 0x05e1; /* all modes, full duplex */
1254 s
->NWayLPAR
= 0x05e1; /* all modes, full duplex */
1255 s
->NWayExpansion
= 0x0001; /* autonegotiation supported */
1257 /* also reset timer and disable timer interrupt */
1262 /* reset tally counters */
1263 RTL8139TallyCounters_clear(&s
->tally_counters
);
1266 static void RTL8139TallyCounters_clear(RTL8139TallyCounters
* counters
)
1270 counters
->TxERR
= 0;
1271 counters
->RxERR
= 0;
1272 counters
->MissPkt
= 0;
1274 counters
->Tx1Col
= 0;
1275 counters
->TxMCol
= 0;
1276 counters
->RxOkPhy
= 0;
1277 counters
->RxOkBrd
= 0;
1278 counters
->RxOkMul
= 0;
1279 counters
->TxAbt
= 0;
1280 counters
->TxUndrn
= 0;
1283 static void RTL8139TallyCounters_physical_memory_write(target_phys_addr_t tc_addr
, RTL8139TallyCounters
* tally_counters
)
1289 val64
= cpu_to_le64(tally_counters
->TxOk
);
1290 cpu_physical_memory_write(tc_addr
+ 0, (uint8_t *)&val64
, 8);
1292 val64
= cpu_to_le64(tally_counters
->RxOk
);
1293 cpu_physical_memory_write(tc_addr
+ 8, (uint8_t *)&val64
, 8);
1295 val64
= cpu_to_le64(tally_counters
->TxERR
);
1296 cpu_physical_memory_write(tc_addr
+ 16, (uint8_t *)&val64
, 8);
1298 val32
= cpu_to_le32(tally_counters
->RxERR
);
1299 cpu_physical_memory_write(tc_addr
+ 24, (uint8_t *)&val32
, 4);
1301 val16
= cpu_to_le16(tally_counters
->MissPkt
);
1302 cpu_physical_memory_write(tc_addr
+ 28, (uint8_t *)&val16
, 2);
1304 val16
= cpu_to_le16(tally_counters
->FAE
);
1305 cpu_physical_memory_write(tc_addr
+ 30, (uint8_t *)&val16
, 2);
1307 val32
= cpu_to_le32(tally_counters
->Tx1Col
);
1308 cpu_physical_memory_write(tc_addr
+ 32, (uint8_t *)&val32
, 4);
1310 val32
= cpu_to_le32(tally_counters
->TxMCol
);
1311 cpu_physical_memory_write(tc_addr
+ 36, (uint8_t *)&val32
, 4);
1313 val64
= cpu_to_le64(tally_counters
->RxOkPhy
);
1314 cpu_physical_memory_write(tc_addr
+ 40, (uint8_t *)&val64
, 8);
1316 val64
= cpu_to_le64(tally_counters
->RxOkBrd
);
1317 cpu_physical_memory_write(tc_addr
+ 48, (uint8_t *)&val64
, 8);
1319 val32
= cpu_to_le32(tally_counters
->RxOkMul
);
1320 cpu_physical_memory_write(tc_addr
+ 56, (uint8_t *)&val32
, 4);
1322 val16
= cpu_to_le16(tally_counters
->TxAbt
);
1323 cpu_physical_memory_write(tc_addr
+ 60, (uint8_t *)&val16
, 2);
1325 val16
= cpu_to_le16(tally_counters
->TxUndrn
);
1326 cpu_physical_memory_write(tc_addr
+ 62, (uint8_t *)&val16
, 2);
1329 /* Loads values of tally counters from VM state file */
1330 static void RTL8139TallyCounters_load(QEMUFile
* f
, RTL8139TallyCounters
*tally_counters
)
1332 qemu_get_be64s(f
, &tally_counters
->TxOk
);
1333 qemu_get_be64s(f
, &tally_counters
->RxOk
);
1334 qemu_get_be64s(f
, &tally_counters
->TxERR
);
1335 qemu_get_be32s(f
, &tally_counters
->RxERR
);
1336 qemu_get_be16s(f
, &tally_counters
->MissPkt
);
1337 qemu_get_be16s(f
, &tally_counters
->FAE
);
1338 qemu_get_be32s(f
, &tally_counters
->Tx1Col
);
1339 qemu_get_be32s(f
, &tally_counters
->TxMCol
);
1340 qemu_get_be64s(f
, &tally_counters
->RxOkPhy
);
1341 qemu_get_be64s(f
, &tally_counters
->RxOkBrd
);
1342 qemu_get_be32s(f
, &tally_counters
->RxOkMul
);
1343 qemu_get_be16s(f
, &tally_counters
->TxAbt
);
1344 qemu_get_be16s(f
, &tally_counters
->TxUndrn
);
1347 /* Saves values of tally counters to VM state file */
1348 static void RTL8139TallyCounters_save(QEMUFile
* f
, RTL8139TallyCounters
*tally_counters
)
1350 qemu_put_be64s(f
, &tally_counters
->TxOk
);
1351 qemu_put_be64s(f
, &tally_counters
->RxOk
);
1352 qemu_put_be64s(f
, &tally_counters
->TxERR
);
1353 qemu_put_be32s(f
, &tally_counters
->RxERR
);
1354 qemu_put_be16s(f
, &tally_counters
->MissPkt
);
1355 qemu_put_be16s(f
, &tally_counters
->FAE
);
1356 qemu_put_be32s(f
, &tally_counters
->Tx1Col
);
1357 qemu_put_be32s(f
, &tally_counters
->TxMCol
);
1358 qemu_put_be64s(f
, &tally_counters
->RxOkPhy
);
1359 qemu_put_be64s(f
, &tally_counters
->RxOkBrd
);
1360 qemu_put_be32s(f
, &tally_counters
->RxOkMul
);
1361 qemu_put_be16s(f
, &tally_counters
->TxAbt
);
1362 qemu_put_be16s(f
, &tally_counters
->TxUndrn
);
1365 static void rtl8139_ChipCmd_write(RTL8139State
*s
, uint32_t val
)
1369 DEBUG_PRINT(("RTL8139: ChipCmd write val=0x%08x\n", val
));
1373 DEBUG_PRINT(("RTL8139: ChipCmd reset\n"));
1378 DEBUG_PRINT(("RTL8139: ChipCmd enable receiver\n"));
1380 s
->currCPlusRxDesc
= 0;
1384 DEBUG_PRINT(("RTL8139: ChipCmd enable transmitter\n"));
1386 s
->currCPlusTxDesc
= 0;
1389 /* mask unwriteable bits */
1390 val
= SET_MASKED(val
, 0xe3, s
->bChipCmdState
);
1392 /* Deassert reset pin before next read */
1395 s
->bChipCmdState
= val
;
1398 static int rtl8139_RxBufferEmpty(RTL8139State
*s
)
1400 int unread
= MOD2(s
->RxBufferSize
+ s
->RxBufAddr
- s
->RxBufPtr
, s
->RxBufferSize
);
1404 DEBUG_PRINT(("RTL8139: receiver buffer data available 0x%04x\n", unread
));
1408 DEBUG_PRINT(("RTL8139: receiver buffer is empty\n"));
1413 static uint32_t rtl8139_ChipCmd_read(RTL8139State
*s
)
1415 uint32_t ret
= s
->bChipCmdState
;
1417 if (rtl8139_RxBufferEmpty(s
))
1420 DEBUG_PRINT(("RTL8139: ChipCmd read val=0x%04x\n", ret
));
1425 static void rtl8139_CpCmd_write(RTL8139State
*s
, uint32_t val
)
1429 DEBUG_PRINT(("RTL8139C+ command register write(w) val=0x%04x\n", val
));
1431 s
->cplus_enabled
= 1;
1433 /* mask unwriteable bits */
1434 val
= SET_MASKED(val
, 0xff84, s
->CpCmd
);
1439 static uint32_t rtl8139_CpCmd_read(RTL8139State
*s
)
1441 uint32_t ret
= s
->CpCmd
;
1443 DEBUG_PRINT(("RTL8139C+ command register read(w) val=0x%04x\n", ret
));
1448 static void rtl8139_IntrMitigate_write(RTL8139State
*s
, uint32_t val
)
1450 DEBUG_PRINT(("RTL8139C+ IntrMitigate register write(w) val=0x%04x\n", val
));
1453 static uint32_t rtl8139_IntrMitigate_read(RTL8139State
*s
)
1457 DEBUG_PRINT(("RTL8139C+ IntrMitigate register read(w) val=0x%04x\n", ret
));
1462 static int rtl8139_config_writeable(RTL8139State
*s
)
1464 if (s
->Cfg9346
& Cfg9346_Unlock
)
1469 DEBUG_PRINT(("RTL8139: Configuration registers are write-protected\n"));
1474 static void rtl8139_BasicModeCtrl_write(RTL8139State
*s
, uint32_t val
)
1478 DEBUG_PRINT(("RTL8139: BasicModeCtrl register write(w) val=0x%04x\n", val
));
1480 /* mask unwriteable bits */
1481 uint32_t mask
= 0x4cff;
1483 if (1 || !rtl8139_config_writeable(s
))
1485 /* Speed setting and autonegotiation enable bits are read-only */
1487 /* Duplex mode setting is read-only */
1491 val
= SET_MASKED(val
, mask
, s
->BasicModeCtrl
);
1493 s
->BasicModeCtrl
= val
;
1496 static uint32_t rtl8139_BasicModeCtrl_read(RTL8139State
*s
)
1498 uint32_t ret
= s
->BasicModeCtrl
;
1500 DEBUG_PRINT(("RTL8139: BasicModeCtrl register read(w) val=0x%04x\n", ret
));
1505 static void rtl8139_BasicModeStatus_write(RTL8139State
*s
, uint32_t val
)
1509 DEBUG_PRINT(("RTL8139: BasicModeStatus register write(w) val=0x%04x\n", val
));
1511 /* mask unwriteable bits */
1512 val
= SET_MASKED(val
, 0xff3f, s
->BasicModeStatus
);
1514 s
->BasicModeStatus
= val
;
1517 static uint32_t rtl8139_BasicModeStatus_read(RTL8139State
*s
)
1519 uint32_t ret
= s
->BasicModeStatus
;
1521 DEBUG_PRINT(("RTL8139: BasicModeStatus register read(w) val=0x%04x\n", ret
));
1526 static void rtl8139_Cfg9346_write(RTL8139State
*s
, uint32_t val
)
1530 DEBUG_PRINT(("RTL8139: Cfg9346 write val=0x%02x\n", val
));
1532 /* mask unwriteable bits */
1533 val
= SET_MASKED(val
, 0x31, s
->Cfg9346
);
1535 uint32_t opmode
= val
& 0xc0;
1536 uint32_t eeprom_val
= val
& 0xf;
1538 if (opmode
== 0x80) {
1540 int eecs
= (eeprom_val
& 0x08)?1:0;
1541 int eesk
= (eeprom_val
& 0x04)?1:0;
1542 int eedi
= (eeprom_val
& 0x02)?1:0;
1543 prom9346_set_wire(s
, eecs
, eesk
, eedi
);
1544 } else if (opmode
== 0x40) {
1553 static uint32_t rtl8139_Cfg9346_read(RTL8139State
*s
)
1555 uint32_t ret
= s
->Cfg9346
;
1557 uint32_t opmode
= ret
& 0xc0;
1562 int eedo
= prom9346_get_wire(s
);
1573 DEBUG_PRINT(("RTL8139: Cfg9346 read val=0x%02x\n", ret
));
1578 static void rtl8139_Config0_write(RTL8139State
*s
, uint32_t val
)
1582 DEBUG_PRINT(("RTL8139: Config0 write val=0x%02x\n", val
));
1584 if (!rtl8139_config_writeable(s
))
1587 /* mask unwriteable bits */
1588 val
= SET_MASKED(val
, 0xf8, s
->Config0
);
1593 static uint32_t rtl8139_Config0_read(RTL8139State
*s
)
1595 uint32_t ret
= s
->Config0
;
1597 DEBUG_PRINT(("RTL8139: Config0 read val=0x%02x\n", ret
));
1602 static void rtl8139_Config1_write(RTL8139State
*s
, uint32_t val
)
1606 DEBUG_PRINT(("RTL8139: Config1 write val=0x%02x\n", val
));
1608 if (!rtl8139_config_writeable(s
))
1611 /* mask unwriteable bits */
1612 val
= SET_MASKED(val
, 0xC, s
->Config1
);
1617 static uint32_t rtl8139_Config1_read(RTL8139State
*s
)
1619 uint32_t ret
= s
->Config1
;
1621 DEBUG_PRINT(("RTL8139: Config1 read val=0x%02x\n", ret
));
1626 static void rtl8139_Config3_write(RTL8139State
*s
, uint32_t val
)
1630 DEBUG_PRINT(("RTL8139: Config3 write val=0x%02x\n", val
));
1632 if (!rtl8139_config_writeable(s
))
1635 /* mask unwriteable bits */
1636 val
= SET_MASKED(val
, 0x8F, s
->Config3
);
1641 static uint32_t rtl8139_Config3_read(RTL8139State
*s
)
1643 uint32_t ret
= s
->Config3
;
1645 DEBUG_PRINT(("RTL8139: Config3 read val=0x%02x\n", ret
));
1650 static void rtl8139_Config4_write(RTL8139State
*s
, uint32_t val
)
1654 DEBUG_PRINT(("RTL8139: Config4 write val=0x%02x\n", val
));
1656 if (!rtl8139_config_writeable(s
))
1659 /* mask unwriteable bits */
1660 val
= SET_MASKED(val
, 0x0a, s
->Config4
);
1665 static uint32_t rtl8139_Config4_read(RTL8139State
*s
)
1667 uint32_t ret
= s
->Config4
;
1669 DEBUG_PRINT(("RTL8139: Config4 read val=0x%02x\n", ret
));
1674 static void rtl8139_Config5_write(RTL8139State
*s
, uint32_t val
)
1678 DEBUG_PRINT(("RTL8139: Config5 write val=0x%02x\n", val
));
1680 /* mask unwriteable bits */
1681 val
= SET_MASKED(val
, 0x80, s
->Config5
);
1686 static uint32_t rtl8139_Config5_read(RTL8139State
*s
)
1688 uint32_t ret
= s
->Config5
;
1690 DEBUG_PRINT(("RTL8139: Config5 read val=0x%02x\n", ret
));
1695 static void rtl8139_TxConfig_write(RTL8139State
*s
, uint32_t val
)
1697 if (!rtl8139_transmitter_enabled(s
))
1699 DEBUG_PRINT(("RTL8139: transmitter disabled; no TxConfig write val=0x%08x\n", val
));
1703 DEBUG_PRINT(("RTL8139: TxConfig write val=0x%08x\n", val
));
1705 val
= SET_MASKED(val
, TxVersionMask
| 0x8070f80f, s
->TxConfig
);
1710 static void rtl8139_TxConfig_writeb(RTL8139State
*s
, uint32_t val
)
1712 DEBUG_PRINT(("RTL8139C TxConfig via write(b) val=0x%02x\n", val
));
1714 uint32_t tc
= s
->TxConfig
;
1716 tc
|= (val
& 0x000000FF);
1717 rtl8139_TxConfig_write(s
, tc
);
1720 static uint32_t rtl8139_TxConfig_read(RTL8139State
*s
)
1722 uint32_t ret
= s
->TxConfig
;
1724 DEBUG_PRINT(("RTL8139: TxConfig read val=0x%04x\n", ret
));
1729 static void rtl8139_RxConfig_write(RTL8139State
*s
, uint32_t val
)
1731 DEBUG_PRINT(("RTL8139: RxConfig write val=0x%08x\n", val
));
1733 /* mask unwriteable bits */
1734 val
= SET_MASKED(val
, 0xf0fc0040, s
->RxConfig
);
1738 /* reset buffer size and read/write pointers */
1739 rtl8139_reset_rxring(s
, 8192 << ((s
->RxConfig
>> 11) & 0x3));
1741 DEBUG_PRINT(("RTL8139: RxConfig write reset buffer size to %d\n", s
->RxBufferSize
));
1744 static uint32_t rtl8139_RxConfig_read(RTL8139State
*s
)
1746 uint32_t ret
= s
->RxConfig
;
1748 DEBUG_PRINT(("RTL8139: RxConfig read val=0x%08x\n", ret
));
1753 static void rtl8139_transfer_frame(RTL8139State
*s
, const uint8_t *buf
, int size
, int do_interrupt
)
1757 DEBUG_PRINT(("RTL8139: +++ empty ethernet frame\n"));
1761 if (TxLoopBack
== (s
->TxConfig
& TxLoopBack
))
1763 DEBUG_PRINT(("RTL8139: +++ transmit loopback mode\n"));
1764 rtl8139_do_receive(s
->vc
, buf
, size
, do_interrupt
);
1768 qemu_send_packet(s
->vc
, buf
, size
);
1772 static int rtl8139_transmit_one(RTL8139State
*s
, int descriptor
)
1774 if (!rtl8139_transmitter_enabled(s
))
1776 DEBUG_PRINT(("RTL8139: +++ cannot transmit from descriptor %d: transmitter disabled\n",
1781 if (s
->TxStatus
[descriptor
] & TxHostOwns
)
1783 DEBUG_PRINT(("RTL8139: +++ cannot transmit from descriptor %d: owned by host (%08x)\n",
1784 descriptor
, s
->TxStatus
[descriptor
]));
1788 DEBUG_PRINT(("RTL8139: +++ transmitting from descriptor %d\n", descriptor
));
1790 int txsize
= s
->TxStatus
[descriptor
] & 0x1fff;
1791 uint8_t txbuffer
[0x2000];
1793 DEBUG_PRINT(("RTL8139: +++ transmit reading %d bytes from host memory at 0x%08x\n",
1794 txsize
, s
->TxAddr
[descriptor
]));
1796 cpu_physical_memory_read(s
->TxAddr
[descriptor
], txbuffer
, txsize
);
1798 /* Mark descriptor as transferred */
1799 s
->TxStatus
[descriptor
] |= TxHostOwns
;
1800 s
->TxStatus
[descriptor
] |= TxStatOK
;
1802 rtl8139_transfer_frame(s
, txbuffer
, txsize
, 0);
1804 DEBUG_PRINT(("RTL8139: +++ transmitted %d bytes from descriptor %d\n", txsize
, descriptor
));
1806 /* update interrupt */
1807 s
->IntrStatus
|= TxOK
;
1808 rtl8139_update_irq(s
);
1813 /* structures and macros for task offloading */
1814 typedef struct ip_header
1816 uint8_t ip_ver_len
; /* version and header length */
1817 uint8_t ip_tos
; /* type of service */
1818 uint16_t ip_len
; /* total length */
1819 uint16_t ip_id
; /* identification */
1820 uint16_t ip_off
; /* fragment offset field */
1821 uint8_t ip_ttl
; /* time to live */
1822 uint8_t ip_p
; /* protocol */
1823 uint16_t ip_sum
; /* checksum */
1824 uint32_t ip_src
,ip_dst
; /* source and dest address */
1827 #define IP_HEADER_VERSION_4 4
1828 #define IP_HEADER_VERSION(ip) ((ip->ip_ver_len >> 4)&0xf)
1829 #define IP_HEADER_LENGTH(ip) (((ip->ip_ver_len)&0xf) << 2)
1831 typedef struct tcp_header
1833 uint16_t th_sport
; /* source port */
1834 uint16_t th_dport
; /* destination port */
1835 uint32_t th_seq
; /* sequence number */
1836 uint32_t th_ack
; /* acknowledgement number */
1837 uint16_t th_offset_flags
; /* data offset, reserved 6 bits, TCP protocol flags */
1838 uint16_t th_win
; /* window */
1839 uint16_t th_sum
; /* checksum */
1840 uint16_t th_urp
; /* urgent pointer */
1843 typedef struct udp_header
1845 uint16_t uh_sport
; /* source port */
1846 uint16_t uh_dport
; /* destination port */
1847 uint16_t uh_ulen
; /* udp length */
1848 uint16_t uh_sum
; /* udp checksum */
1851 typedef struct ip_pseudo_header
1857 uint16_t ip_payload
;
1860 #define IP_PROTO_TCP 6
1861 #define IP_PROTO_UDP 17
1863 #define TCP_HEADER_DATA_OFFSET(tcp) (((be16_to_cpu(tcp->th_offset_flags) >> 12)&0xf) << 2)
1864 #define TCP_FLAGS_ONLY(flags) ((flags)&0x3f)
1865 #define TCP_HEADER_FLAGS(tcp) TCP_FLAGS_ONLY(be16_to_cpu(tcp->th_offset_flags))
1867 #define TCP_HEADER_CLEAR_FLAGS(tcp, off) ((tcp)->th_offset_flags &= cpu_to_be16(~TCP_FLAGS_ONLY(off)))
1869 #define TCP_FLAG_FIN 0x01
1870 #define TCP_FLAG_PUSH 0x08
1872 /* produces ones' complement sum of data */
1873 static uint16_t ones_complement_sum(uint8_t *data
, size_t len
)
1875 uint32_t result
= 0;
1877 for (; len
> 1; data
+=2, len
-=2)
1879 result
+= *(uint16_t*)data
;
1882 /* add the remainder byte */
1885 uint8_t odd
[2] = {*data
, 0};
1886 result
+= *(uint16_t*)odd
;
1890 result
= (result
& 0xffff) + (result
>> 16);
1895 static uint16_t ip_checksum(void *data
, size_t len
)
1897 return ~ones_complement_sum((uint8_t*)data
, len
);
1900 static int rtl8139_cplus_transmit_one(RTL8139State
*s
)
1902 if (!rtl8139_transmitter_enabled(s
))
1904 DEBUG_PRINT(("RTL8139: +++ C+ mode: transmitter disabled\n"));
1908 if (!rtl8139_cp_transmitter_enabled(s
))
1910 DEBUG_PRINT(("RTL8139: +++ C+ mode: C+ transmitter disabled\n"));
1914 int descriptor
= s
->currCPlusTxDesc
;
1916 target_phys_addr_t cplus_tx_ring_desc
=
1917 rtl8139_addr64(s
->TxAddr
[0], s
->TxAddr
[1]);
1919 /* Normal priority ring */
1920 cplus_tx_ring_desc
+= 16 * descriptor
;
1922 DEBUG_PRINT(("RTL8139: +++ C+ mode reading TX descriptor %d from host memory at %08x0x%08x = 0x%8lx\n",
1923 descriptor
, s
->TxAddr
[1], s
->TxAddr
[0], cplus_tx_ring_desc
));
1925 uint32_t val
, txdw0
,txdw1
,txbufLO
,txbufHI
;
1927 cpu_physical_memory_read(cplus_tx_ring_desc
, (uint8_t *)&val
, 4);
1928 txdw0
= le32_to_cpu(val
);
1929 cpu_physical_memory_read(cplus_tx_ring_desc
+4, (uint8_t *)&val
, 4);
1930 txdw1
= le32_to_cpu(val
);
1931 cpu_physical_memory_read(cplus_tx_ring_desc
+8, (uint8_t *)&val
, 4);
1932 txbufLO
= le32_to_cpu(val
);
1933 cpu_physical_memory_read(cplus_tx_ring_desc
+12, (uint8_t *)&val
, 4);
1934 txbufHI
= le32_to_cpu(val
);
1936 DEBUG_PRINT(("RTL8139: +++ C+ mode TX descriptor %d %08x %08x %08x %08x\n",
1938 txdw0
, txdw1
, txbufLO
, txbufHI
));
1940 /* w0 ownership flag */
1941 #define CP_TX_OWN (1<<31)
1942 /* w0 end of ring flag */
1943 #define CP_TX_EOR (1<<30)
1944 /* first segment of received packet flag */
1945 #define CP_TX_FS (1<<29)
1946 /* last segment of received packet flag */
1947 #define CP_TX_LS (1<<28)
1948 /* large send packet flag */
1949 #define CP_TX_LGSEN (1<<27)
1950 /* large send MSS mask, bits 16...25 */
1951 #define CP_TC_LGSEN_MSS_MASK ((1 << 12) - 1)
1953 /* IP checksum offload flag */
1954 #define CP_TX_IPCS (1<<18)
1955 /* UDP checksum offload flag */
1956 #define CP_TX_UDPCS (1<<17)
1957 /* TCP checksum offload flag */
1958 #define CP_TX_TCPCS (1<<16)
1960 /* w0 bits 0...15 : buffer size */
1961 #define CP_TX_BUFFER_SIZE (1<<16)
1962 #define CP_TX_BUFFER_SIZE_MASK (CP_TX_BUFFER_SIZE - 1)
1963 /* w1 tag available flag */
1964 #define CP_RX_TAGC (1<<17)
1965 /* w1 bits 0...15 : VLAN tag */
1966 #define CP_TX_VLAN_TAG_MASK ((1<<16) - 1)
1967 /* w2 low 32bit of Rx buffer ptr */
1968 /* w3 high 32bit of Rx buffer ptr */
1970 /* set after transmission */
1971 /* FIFO underrun flag */
1972 #define CP_TX_STATUS_UNF (1<<25)
1973 /* transmit error summary flag, valid if set any of three below */
1974 #define CP_TX_STATUS_TES (1<<23)
1975 /* out-of-window collision flag */
1976 #define CP_TX_STATUS_OWC (1<<22)
1977 /* link failure flag */
1978 #define CP_TX_STATUS_LNKF (1<<21)
1979 /* excessive collisions flag */
1980 #define CP_TX_STATUS_EXC (1<<20)
1982 if (!(txdw0
& CP_TX_OWN
))
1984 DEBUG_PRINT(("RTL8139: C+ Tx mode : descriptor %d is owned by host\n", descriptor
));
1988 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : transmitting from descriptor %d\n", descriptor
));
1990 if (txdw0
& CP_TX_FS
)
1992 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : descriptor %d is first segment descriptor\n", descriptor
));
1994 /* reset internal buffer offset */
1995 s
->cplus_txbuffer_offset
= 0;
1998 int txsize
= txdw0
& CP_TX_BUFFER_SIZE_MASK
;
1999 target_phys_addr_t tx_addr
= rtl8139_addr64(txbufLO
, txbufHI
);
2001 /* make sure we have enough space to assemble the packet */
2002 if (!s
->cplus_txbuffer
)
2004 s
->cplus_txbuffer_len
= CP_TX_BUFFER_SIZE
;
2005 s
->cplus_txbuffer
= malloc(s
->cplus_txbuffer_len
);
2006 s
->cplus_txbuffer_offset
= 0;
2008 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission buffer allocated space %d\n", s
->cplus_txbuffer_len
));
2011 while (s
->cplus_txbuffer
&& s
->cplus_txbuffer_offset
+ txsize
>= s
->cplus_txbuffer_len
)
2013 s
->cplus_txbuffer_len
+= CP_TX_BUFFER_SIZE
;
2014 s
->cplus_txbuffer
= qemu_realloc(s
->cplus_txbuffer
, s
->cplus_txbuffer_len
);
2016 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission buffer space changed to %d\n", s
->cplus_txbuffer_len
));
2019 if (!s
->cplus_txbuffer
)
2023 DEBUG_PRINT(("RTL8139: +++ C+ mode transmiter failed to reallocate %d bytes\n", s
->cplus_txbuffer_len
));
2025 /* update tally counter */
2026 ++s
->tally_counters
.TxERR
;
2027 ++s
->tally_counters
.TxAbt
;
2032 /* append more data to the packet */
2034 DEBUG_PRINT(("RTL8139: +++ C+ mode transmit reading %d bytes from host memory at %016" PRIx64
" to offset %d\n",
2035 txsize
, (uint64_t)tx_addr
, s
->cplus_txbuffer_offset
));
2037 cpu_physical_memory_read(tx_addr
, s
->cplus_txbuffer
+ s
->cplus_txbuffer_offset
, txsize
);
2038 s
->cplus_txbuffer_offset
+= txsize
;
2040 /* seek to next Rx descriptor */
2041 if (txdw0
& CP_TX_EOR
)
2043 s
->currCPlusTxDesc
= 0;
2047 ++s
->currCPlusTxDesc
;
2048 if (s
->currCPlusTxDesc
>= 64)
2049 s
->currCPlusTxDesc
= 0;
2052 /* transfer ownership to target */
2053 txdw0
&= ~CP_RX_OWN
;
2055 /* reset error indicator bits */
2056 txdw0
&= ~CP_TX_STATUS_UNF
;
2057 txdw0
&= ~CP_TX_STATUS_TES
;
2058 txdw0
&= ~CP_TX_STATUS_OWC
;
2059 txdw0
&= ~CP_TX_STATUS_LNKF
;
2060 txdw0
&= ~CP_TX_STATUS_EXC
;
2062 /* update ring data */
2063 val
= cpu_to_le32(txdw0
);
2064 cpu_physical_memory_write(cplus_tx_ring_desc
, (uint8_t *)&val
, 4);
2065 // val = cpu_to_le32(txdw1);
2066 // cpu_physical_memory_write(cplus_tx_ring_desc+4, &val, 4);
2068 /* Now decide if descriptor being processed is holding the last segment of packet */
2069 if (txdw0
& CP_TX_LS
)
2071 DEBUG_PRINT(("RTL8139: +++ C+ Tx mode : descriptor %d is last segment descriptor\n", descriptor
));
2073 /* can transfer fully assembled packet */
2075 uint8_t *saved_buffer
= s
->cplus_txbuffer
;
2076 int saved_size
= s
->cplus_txbuffer_offset
;
2077 int saved_buffer_len
= s
->cplus_txbuffer_len
;
2079 /* reset the card space to protect from recursive call */
2080 s
->cplus_txbuffer
= NULL
;
2081 s
->cplus_txbuffer_offset
= 0;
2082 s
->cplus_txbuffer_len
= 0;
2084 if (txdw0
& (CP_TX_IPCS
| CP_TX_UDPCS
| CP_TX_TCPCS
| CP_TX_LGSEN
))
2086 DEBUG_PRINT(("RTL8139: +++ C+ mode offloaded task checksum\n"));
2088 #define ETH_P_IP 0x0800 /* Internet Protocol packet */
2090 #define ETH_MTU 1500
2092 /* ip packet header */
2093 ip_header
*ip
= NULL
;
2095 uint8_t ip_protocol
= 0;
2096 uint16_t ip_data_len
= 0;
2098 uint8_t *eth_payload_data
= NULL
;
2099 size_t eth_payload_len
= 0;
2101 int proto
= be16_to_cpu(*(uint16_t *)(saved_buffer
+ 12));
2102 if (proto
== ETH_P_IP
)
2104 DEBUG_PRINT(("RTL8139: +++ C+ mode has IP packet\n"));
2107 eth_payload_data
= saved_buffer
+ ETH_HLEN
;
2108 eth_payload_len
= saved_size
- ETH_HLEN
;
2110 ip
= (ip_header
*)eth_payload_data
;
2112 if (IP_HEADER_VERSION(ip
) != IP_HEADER_VERSION_4
) {
2113 DEBUG_PRINT(("RTL8139: +++ C+ mode packet has bad IP version %d expected %d\n", IP_HEADER_VERSION(ip
), IP_HEADER_VERSION_4
));
2116 hlen
= IP_HEADER_LENGTH(ip
);
2117 ip_protocol
= ip
->ip_p
;
2118 ip_data_len
= be16_to_cpu(ip
->ip_len
) - hlen
;
2124 if (txdw0
& CP_TX_IPCS
)
2126 DEBUG_PRINT(("RTL8139: +++ C+ mode need IP checksum\n"));
2128 if (hlen
<sizeof(ip_header
) || hlen
>eth_payload_len
) {/* min header length */
2129 /* bad packet header len */
2130 /* or packet too short */
2135 ip
->ip_sum
= ip_checksum(ip
, hlen
);
2136 DEBUG_PRINT(("RTL8139: +++ C+ mode IP header len=%d checksum=%04x\n", hlen
, ip
->ip_sum
));
2140 if ((txdw0
& CP_TX_LGSEN
) && ip_protocol
== IP_PROTO_TCP
)
2142 #if defined (DEBUG_RTL8139)
2143 int large_send_mss
= (txdw0
>> 16) & CP_TC_LGSEN_MSS_MASK
;
2145 DEBUG_PRINT(("RTL8139: +++ C+ mode offloaded task TSO MTU=%d IP data %d frame data %d specified MSS=%d\n",
2146 ETH_MTU
, ip_data_len
, saved_size
- ETH_HLEN
, large_send_mss
));
2148 int tcp_send_offset
= 0;
2151 /* maximum IP header length is 60 bytes */
2152 uint8_t saved_ip_header
[60];
2154 /* save IP header template; data area is used in tcp checksum calculation */
2155 memcpy(saved_ip_header
, eth_payload_data
, hlen
);
2157 /* a placeholder for checksum calculation routine in tcp case */
2158 uint8_t *data_to_checksum
= eth_payload_data
+ hlen
- 12;
2159 // size_t data_to_checksum_len = eth_payload_len - hlen + 12;
2161 /* pointer to TCP header */
2162 tcp_header
*p_tcp_hdr
= (tcp_header
*)(eth_payload_data
+ hlen
);
2164 int tcp_hlen
= TCP_HEADER_DATA_OFFSET(p_tcp_hdr
);
2166 /* ETH_MTU = ip header len + tcp header len + payload */
2167 int tcp_data_len
= ip_data_len
- tcp_hlen
;
2168 int tcp_chunk_size
= ETH_MTU
- hlen
- tcp_hlen
;
2170 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO IP data len %d TCP hlen %d TCP data len %d TCP chunk size %d\n",
2171 ip_data_len
, tcp_hlen
, tcp_data_len
, tcp_chunk_size
));
2173 /* note the cycle below overwrites IP header data,
2174 but restores it from saved_ip_header before sending packet */
2176 int is_last_frame
= 0;
2178 for (tcp_send_offset
= 0; tcp_send_offset
< tcp_data_len
; tcp_send_offset
+= tcp_chunk_size
)
2180 uint16_t chunk_size
= tcp_chunk_size
;
2182 /* check if this is the last frame */
2183 if (tcp_send_offset
+ tcp_chunk_size
>= tcp_data_len
)
2186 chunk_size
= tcp_data_len
- tcp_send_offset
;
2189 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO TCP seqno %08x\n", be32_to_cpu(p_tcp_hdr
->th_seq
)));
2191 /* add 4 TCP pseudoheader fields */
2192 /* copy IP source and destination fields */
2193 memcpy(data_to_checksum
, saved_ip_header
+ 12, 8);
2195 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO calculating TCP checksum for packet with %d bytes data\n", tcp_hlen
+ chunk_size
));
2197 if (tcp_send_offset
)
2199 memcpy((uint8_t*)p_tcp_hdr
+ tcp_hlen
, (uint8_t*)p_tcp_hdr
+ tcp_hlen
+ tcp_send_offset
, chunk_size
);
2202 /* keep PUSH and FIN flags only for the last frame */
2205 TCP_HEADER_CLEAR_FLAGS(p_tcp_hdr
, TCP_FLAG_PUSH
|TCP_FLAG_FIN
);
2208 /* recalculate TCP checksum */
2209 ip_pseudo_header
*p_tcpip_hdr
= (ip_pseudo_header
*)data_to_checksum
;
2210 p_tcpip_hdr
->zeros
= 0;
2211 p_tcpip_hdr
->ip_proto
= IP_PROTO_TCP
;
2212 p_tcpip_hdr
->ip_payload
= cpu_to_be16(tcp_hlen
+ chunk_size
);
2214 p_tcp_hdr
->th_sum
= 0;
2216 int tcp_checksum
= ip_checksum(data_to_checksum
, tcp_hlen
+ chunk_size
+ 12);
2217 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO TCP checksum %04x\n", tcp_checksum
));
2219 p_tcp_hdr
->th_sum
= tcp_checksum
;
2221 /* restore IP header */
2222 memcpy(eth_payload_data
, saved_ip_header
, hlen
);
2224 /* set IP data length and recalculate IP checksum */
2225 ip
->ip_len
= cpu_to_be16(hlen
+ tcp_hlen
+ chunk_size
);
2227 /* increment IP id for subsequent frames */
2228 ip
->ip_id
= cpu_to_be16(tcp_send_offset
/tcp_chunk_size
+ be16_to_cpu(ip
->ip_id
));
2231 ip
->ip_sum
= ip_checksum(eth_payload_data
, hlen
);
2232 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO IP header len=%d checksum=%04x\n", hlen
, ip
->ip_sum
));
2234 int tso_send_size
= ETH_HLEN
+ hlen
+ tcp_hlen
+ chunk_size
;
2235 DEBUG_PRINT(("RTL8139: +++ C+ mode TSO transferring packet size %d\n", tso_send_size
));
2236 rtl8139_transfer_frame(s
, saved_buffer
, tso_send_size
, 0);
2238 /* add transferred count to TCP sequence number */
2239 p_tcp_hdr
->th_seq
= cpu_to_be32(chunk_size
+ be32_to_cpu(p_tcp_hdr
->th_seq
));
2243 /* Stop sending this frame */
2246 else if (txdw0
& (CP_TX_TCPCS
|CP_TX_UDPCS
))
2248 DEBUG_PRINT(("RTL8139: +++ C+ mode need TCP or UDP checksum\n"));
2250 /* maximum IP header length is 60 bytes */
2251 uint8_t saved_ip_header
[60];
2252 memcpy(saved_ip_header
, eth_payload_data
, hlen
);
2254 uint8_t *data_to_checksum
= eth_payload_data
+ hlen
- 12;
2255 // size_t data_to_checksum_len = eth_payload_len - hlen + 12;
2257 /* add 4 TCP pseudoheader fields */
2258 /* copy IP source and destination fields */
2259 memcpy(data_to_checksum
, saved_ip_header
+ 12, 8);
2261 if ((txdw0
& CP_TX_TCPCS
) && ip_protocol
== IP_PROTO_TCP
)
2263 DEBUG_PRINT(("RTL8139: +++ C+ mode calculating TCP checksum for packet with %d bytes data\n", ip_data_len
));
2265 ip_pseudo_header
*p_tcpip_hdr
= (ip_pseudo_header
*)data_to_checksum
;
2266 p_tcpip_hdr
->zeros
= 0;
2267 p_tcpip_hdr
->ip_proto
= IP_PROTO_TCP
;
2268 p_tcpip_hdr
->ip_payload
= cpu_to_be16(ip_data_len
);
2270 tcp_header
* p_tcp_hdr
= (tcp_header
*) (data_to_checksum
+12);
2272 p_tcp_hdr
->th_sum
= 0;
2274 int tcp_checksum
= ip_checksum(data_to_checksum
, ip_data_len
+ 12);
2275 DEBUG_PRINT(("RTL8139: +++ C+ mode TCP checksum %04x\n", tcp_checksum
));
2277 p_tcp_hdr
->th_sum
= tcp_checksum
;
2279 else if ((txdw0
& CP_TX_UDPCS
) && ip_protocol
== IP_PROTO_UDP
)
2281 DEBUG_PRINT(("RTL8139: +++ C+ mode calculating UDP checksum for packet with %d bytes data\n", ip_data_len
));
2283 ip_pseudo_header
*p_udpip_hdr
= (ip_pseudo_header
*)data_to_checksum
;
2284 p_udpip_hdr
->zeros
= 0;
2285 p_udpip_hdr
->ip_proto
= IP_PROTO_UDP
;
2286 p_udpip_hdr
->ip_payload
= cpu_to_be16(ip_data_len
);
2288 udp_header
*p_udp_hdr
= (udp_header
*) (data_to_checksum
+12);
2290 p_udp_hdr
->uh_sum
= 0;
2292 int udp_checksum
= ip_checksum(data_to_checksum
, ip_data_len
+ 12);
2293 DEBUG_PRINT(("RTL8139: +++ C+ mode UDP checksum %04x\n", udp_checksum
));
2295 p_udp_hdr
->uh_sum
= udp_checksum
;
2298 /* restore IP header */
2299 memcpy(eth_payload_data
, saved_ip_header
, hlen
);
2304 /* update tally counter */
2305 ++s
->tally_counters
.TxOk
;
2307 DEBUG_PRINT(("RTL8139: +++ C+ mode transmitting %d bytes packet\n", saved_size
));
2309 rtl8139_transfer_frame(s
, saved_buffer
, saved_size
, 1);
2311 /* restore card space if there was no recursion and reset offset */
2312 if (!s
->cplus_txbuffer
)
2314 s
->cplus_txbuffer
= saved_buffer
;
2315 s
->cplus_txbuffer_len
= saved_buffer_len
;
2316 s
->cplus_txbuffer_offset
= 0;
2325 DEBUG_PRINT(("RTL8139: +++ C+ mode transmission continue to next descriptor\n"));
2331 static void rtl8139_cplus_transmit(RTL8139State
*s
)
2335 while (rtl8139_cplus_transmit_one(s
))
2340 /* Mark transfer completed */
2343 DEBUG_PRINT(("RTL8139: C+ mode : transmitter queue stalled, current TxDesc = %d\n",
2344 s
->currCPlusTxDesc
));
2348 /* update interrupt status */
2349 s
->IntrStatus
|= TxOK
;
2350 rtl8139_update_irq(s
);
2354 static void rtl8139_transmit(RTL8139State
*s
)
2356 int descriptor
= s
->currTxDesc
, txcount
= 0;
2359 if (rtl8139_transmit_one(s
, descriptor
))
2366 /* Mark transfer completed */
2369 DEBUG_PRINT(("RTL8139: transmitter queue stalled, current TxDesc = %d\n", s
->currTxDesc
));
2373 static void rtl8139_TxStatus_write(RTL8139State
*s
, uint32_t txRegOffset
, uint32_t val
)
2376 int descriptor
= txRegOffset
/4;
2378 /* handle C+ transmit mode register configuration */
2380 if (s
->cplus_enabled
)
2382 DEBUG_PRINT(("RTL8139C+ DTCCR write offset=0x%x val=0x%08x descriptor=%d\n", txRegOffset
, val
, descriptor
));
2384 /* handle Dump Tally Counters command */
2385 s
->TxStatus
[descriptor
] = val
;
2387 if (descriptor
== 0 && (val
& 0x8))
2389 target_phys_addr_t tc_addr
= rtl8139_addr64(s
->TxStatus
[0] & ~0x3f, s
->TxStatus
[1]);
2391 /* dump tally counters to specified memory location */
2392 RTL8139TallyCounters_physical_memory_write( tc_addr
, &s
->tally_counters
);
2394 /* mark dump completed */
2395 s
->TxStatus
[0] &= ~0x8;
2401 DEBUG_PRINT(("RTL8139: TxStatus write offset=0x%x val=0x%08x descriptor=%d\n", txRegOffset
, val
, descriptor
));
2403 /* mask only reserved bits */
2404 val
&= ~0xff00c000; /* these bits are reset on write */
2405 val
= SET_MASKED(val
, 0x00c00000, s
->TxStatus
[descriptor
]);
2407 s
->TxStatus
[descriptor
] = val
;
2409 /* attempt to start transmission */
2410 rtl8139_transmit(s
);
2413 static uint32_t rtl8139_TxStatus_read(RTL8139State
*s
, uint32_t txRegOffset
)
2415 uint32_t ret
= s
->TxStatus
[txRegOffset
/4];
2417 DEBUG_PRINT(("RTL8139: TxStatus read offset=0x%x val=0x%08x\n", txRegOffset
, ret
));
2422 static uint16_t rtl8139_TSAD_read(RTL8139State
*s
)
2426 /* Simulate TSAD, it is read only anyway */
2428 ret
= ((s
->TxStatus
[3] & TxStatOK
)?TSAD_TOK3
:0)
2429 |((s
->TxStatus
[2] & TxStatOK
)?TSAD_TOK2
:0)
2430 |((s
->TxStatus
[1] & TxStatOK
)?TSAD_TOK1
:0)
2431 |((s
->TxStatus
[0] & TxStatOK
)?TSAD_TOK0
:0)
2433 |((s
->TxStatus
[3] & TxUnderrun
)?TSAD_TUN3
:0)
2434 |((s
->TxStatus
[2] & TxUnderrun
)?TSAD_TUN2
:0)
2435 |((s
->TxStatus
[1] & TxUnderrun
)?TSAD_TUN1
:0)
2436 |((s
->TxStatus
[0] & TxUnderrun
)?TSAD_TUN0
:0)
2438 |((s
->TxStatus
[3] & TxAborted
)?TSAD_TABT3
:0)
2439 |((s
->TxStatus
[2] & TxAborted
)?TSAD_TABT2
:0)
2440 |((s
->TxStatus
[1] & TxAborted
)?TSAD_TABT1
:0)
2441 |((s
->TxStatus
[0] & TxAborted
)?TSAD_TABT0
:0)
2443 |((s
->TxStatus
[3] & TxHostOwns
)?TSAD_OWN3
:0)
2444 |((s
->TxStatus
[2] & TxHostOwns
)?TSAD_OWN2
:0)
2445 |((s
->TxStatus
[1] & TxHostOwns
)?TSAD_OWN1
:0)
2446 |((s
->TxStatus
[0] & TxHostOwns
)?TSAD_OWN0
:0) ;
2449 DEBUG_PRINT(("RTL8139: TSAD read val=0x%04x\n", ret
));
2454 static uint16_t rtl8139_CSCR_read(RTL8139State
*s
)
2456 uint16_t ret
= s
->CSCR
;
2458 DEBUG_PRINT(("RTL8139: CSCR read val=0x%04x\n", ret
));
2463 static void rtl8139_TxAddr_write(RTL8139State
*s
, uint32_t txAddrOffset
, uint32_t val
)
2465 DEBUG_PRINT(("RTL8139: TxAddr write offset=0x%x val=0x%08x\n", txAddrOffset
, val
));
2467 s
->TxAddr
[txAddrOffset
/4] = val
;
2470 static uint32_t rtl8139_TxAddr_read(RTL8139State
*s
, uint32_t txAddrOffset
)
2472 uint32_t ret
= s
->TxAddr
[txAddrOffset
/4];
2474 DEBUG_PRINT(("RTL8139: TxAddr read offset=0x%x val=0x%08x\n", txAddrOffset
, ret
));
2479 static void rtl8139_RxBufPtr_write(RTL8139State
*s
, uint32_t val
)
2481 DEBUG_PRINT(("RTL8139: RxBufPtr write val=0x%04x\n", val
));
2483 /* this value is off by 16 */
2484 s
->RxBufPtr
= MOD2(val
+ 0x10, s
->RxBufferSize
);
2486 DEBUG_PRINT((" CAPR write: rx buffer length %d head 0x%04x read 0x%04x\n",
2487 s
->RxBufferSize
, s
->RxBufAddr
, s
->RxBufPtr
));
2490 static uint32_t rtl8139_RxBufPtr_read(RTL8139State
*s
)
2492 /* this value is off by 16 */
2493 uint32_t ret
= s
->RxBufPtr
- 0x10;
2495 DEBUG_PRINT(("RTL8139: RxBufPtr read val=0x%04x\n", ret
));
2500 static uint32_t rtl8139_RxBufAddr_read(RTL8139State
*s
)
2502 /* this value is NOT off by 16 */
2503 uint32_t ret
= s
->RxBufAddr
;
2505 DEBUG_PRINT(("RTL8139: RxBufAddr read val=0x%04x\n", ret
));
2510 static void rtl8139_RxBuf_write(RTL8139State
*s
, uint32_t val
)
2512 DEBUG_PRINT(("RTL8139: RxBuf write val=0x%08x\n", val
));
2516 /* may need to reset rxring here */
2519 static uint32_t rtl8139_RxBuf_read(RTL8139State
*s
)
2521 uint32_t ret
= s
->RxBuf
;
2523 DEBUG_PRINT(("RTL8139: RxBuf read val=0x%08x\n", ret
));
2528 static void rtl8139_IntrMask_write(RTL8139State
*s
, uint32_t val
)
2530 DEBUG_PRINT(("RTL8139: IntrMask write(w) val=0x%04x\n", val
));
2532 /* mask unwriteable bits */
2533 val
= SET_MASKED(val
, 0x1e00, s
->IntrMask
);
2537 rtl8139_update_irq(s
);
2540 static uint32_t rtl8139_IntrMask_read(RTL8139State
*s
)
2542 uint32_t ret
= s
->IntrMask
;
2544 DEBUG_PRINT(("RTL8139: IntrMask read(w) val=0x%04x\n", ret
));
2549 static void rtl8139_IntrStatus_write(RTL8139State
*s
, uint32_t val
)
2551 DEBUG_PRINT(("RTL8139: IntrStatus write(w) val=0x%04x\n", val
));
2555 /* writing to ISR has no effect */
2560 uint16_t newStatus
= s
->IntrStatus
& ~val
;
2562 /* mask unwriteable bits */
2563 newStatus
= SET_MASKED(newStatus
, 0x1e00, s
->IntrStatus
);
2565 /* writing 1 to interrupt status register bit clears it */
2567 rtl8139_update_irq(s
);
2569 s
->IntrStatus
= newStatus
;
2570 rtl8139_update_irq(s
);
2574 static uint32_t rtl8139_IntrStatus_read(RTL8139State
*s
)
2576 uint32_t ret
= s
->IntrStatus
;
2578 DEBUG_PRINT(("RTL8139: IntrStatus read(w) val=0x%04x\n", ret
));
2582 /* reading ISR clears all interrupts */
2585 rtl8139_update_irq(s
);
2592 static void rtl8139_MultiIntr_write(RTL8139State
*s
, uint32_t val
)
2594 DEBUG_PRINT(("RTL8139: MultiIntr write(w) val=0x%04x\n", val
));
2596 /* mask unwriteable bits */
2597 val
= SET_MASKED(val
, 0xf000, s
->MultiIntr
);
2602 static uint32_t rtl8139_MultiIntr_read(RTL8139State
*s
)
2604 uint32_t ret
= s
->MultiIntr
;
2606 DEBUG_PRINT(("RTL8139: MultiIntr read(w) val=0x%04x\n", ret
));
2611 static void rtl8139_io_writeb(void *opaque
, uint8_t addr
, uint32_t val
)
2613 RTL8139State
*s
= opaque
;
2619 case MAC0
... MAC0
+5:
2620 s
->phys
[addr
- MAC0
] = val
;
2622 case MAC0
+6 ... MAC0
+7:
2625 case MAR0
... MAR0
+7:
2626 s
->mult
[addr
- MAR0
] = val
;
2629 rtl8139_ChipCmd_write(s
, val
);
2632 rtl8139_Cfg9346_write(s
, val
);
2634 case TxConfig
: /* windows driver sometimes writes using byte-lenth call */
2635 rtl8139_TxConfig_writeb(s
, val
);
2638 rtl8139_Config0_write(s
, val
);
2641 rtl8139_Config1_write(s
, val
);
2644 rtl8139_Config3_write(s
, val
);
2647 rtl8139_Config4_write(s
, val
);
2650 rtl8139_Config5_write(s
, val
);
2654 DEBUG_PRINT(("RTL8139: not implemented write(b) to MediaStatus val=0x%02x\n", val
));
2658 DEBUG_PRINT(("RTL8139: HltClk write val=0x%08x\n", val
));
2661 s
->clock_enabled
= 1;
2663 else if (val
== 'H')
2665 s
->clock_enabled
= 0;
2670 DEBUG_PRINT(("RTL8139C+ TxThresh write(b) val=0x%02x\n", val
));
2675 DEBUG_PRINT(("RTL8139C+ TxPoll write(b) val=0x%02x\n", val
));
2678 DEBUG_PRINT(("RTL8139C+ TxPoll high priority transmission (not implemented)\n"));
2679 //rtl8139_cplus_transmit(s);
2683 DEBUG_PRINT(("RTL8139C+ TxPoll normal priority transmission\n"));
2684 rtl8139_cplus_transmit(s
);
2690 DEBUG_PRINT(("RTL8139: not implemented write(b) addr=0x%x val=0x%02x\n", addr
, val
));
2695 static void rtl8139_io_writew(void *opaque
, uint8_t addr
, uint32_t val
)
2697 RTL8139State
*s
= opaque
;
2704 rtl8139_IntrMask_write(s
, val
);
2708 rtl8139_IntrStatus_write(s
, val
);
2712 rtl8139_MultiIntr_write(s
, val
);
2716 rtl8139_RxBufPtr_write(s
, val
);
2720 rtl8139_BasicModeCtrl_write(s
, val
);
2722 case BasicModeStatus
:
2723 rtl8139_BasicModeStatus_write(s
, val
);
2726 DEBUG_PRINT(("RTL8139: NWayAdvert write(w) val=0x%04x\n", val
));
2727 s
->NWayAdvert
= val
;
2730 DEBUG_PRINT(("RTL8139: forbidden NWayLPAR write(w) val=0x%04x\n", val
));
2733 DEBUG_PRINT(("RTL8139: NWayExpansion write(w) val=0x%04x\n", val
));
2734 s
->NWayExpansion
= val
;
2738 rtl8139_CpCmd_write(s
, val
);
2742 rtl8139_IntrMitigate_write(s
, val
);
2746 DEBUG_PRINT(("RTL8139: ioport write(w) addr=0x%x val=0x%04x via write(b)\n", addr
, val
));
2748 rtl8139_io_writeb(opaque
, addr
, val
& 0xff);
2749 rtl8139_io_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
2754 static void rtl8139_io_writel(void *opaque
, uint8_t addr
, uint32_t val
)
2756 RTL8139State
*s
= opaque
;
2763 DEBUG_PRINT(("RTL8139: RxMissed clearing on write\n"));
2768 rtl8139_TxConfig_write(s
, val
);
2772 rtl8139_RxConfig_write(s
, val
);
2775 case TxStatus0
... TxStatus0
+4*4-1:
2776 rtl8139_TxStatus_write(s
, addr
-TxStatus0
, val
);
2779 case TxAddr0
... TxAddr0
+4*4-1:
2780 rtl8139_TxAddr_write(s
, addr
-TxAddr0
, val
);
2784 rtl8139_RxBuf_write(s
, val
);
2788 DEBUG_PRINT(("RTL8139: C+ RxRing low bits write val=0x%08x\n", val
));
2789 s
->RxRingAddrLO
= val
;
2793 DEBUG_PRINT(("RTL8139: C+ RxRing high bits write val=0x%08x\n", val
));
2794 s
->RxRingAddrHI
= val
;
2798 DEBUG_PRINT(("RTL8139: TCTR Timer reset on write\n"));
2800 s
->TCTR_base
= qemu_get_clock(vm_clock
);
2804 DEBUG_PRINT(("RTL8139: FlashReg TimerInt write val=0x%08x\n", val
));
2809 DEBUG_PRINT(("RTL8139: ioport write(l) addr=0x%x val=0x%08x via write(b)\n", addr
, val
));
2810 rtl8139_io_writeb(opaque
, addr
, val
& 0xff);
2811 rtl8139_io_writeb(opaque
, addr
+ 1, (val
>> 8) & 0xff);
2812 rtl8139_io_writeb(opaque
, addr
+ 2, (val
>> 16) & 0xff);
2813 rtl8139_io_writeb(opaque
, addr
+ 3, (val
>> 24) & 0xff);
2818 static uint32_t rtl8139_io_readb(void *opaque
, uint8_t addr
)
2820 RTL8139State
*s
= opaque
;
2827 case MAC0
... MAC0
+5:
2828 ret
= s
->phys
[addr
- MAC0
];
2830 case MAC0
+6 ... MAC0
+7:
2833 case MAR0
... MAR0
+7:
2834 ret
= s
->mult
[addr
- MAR0
];
2837 ret
= rtl8139_ChipCmd_read(s
);
2840 ret
= rtl8139_Cfg9346_read(s
);
2843 ret
= rtl8139_Config0_read(s
);
2846 ret
= rtl8139_Config1_read(s
);
2849 ret
= rtl8139_Config3_read(s
);
2852 ret
= rtl8139_Config4_read(s
);
2855 ret
= rtl8139_Config5_read(s
);
2860 DEBUG_PRINT(("RTL8139: MediaStatus read 0x%x\n", ret
));
2864 ret
= s
->clock_enabled
;
2865 DEBUG_PRINT(("RTL8139: HltClk read 0x%x\n", ret
));
2869 ret
= RTL8139_PCI_REVID
;
2870 DEBUG_PRINT(("RTL8139: PCI Revision ID read 0x%x\n", ret
));
2875 DEBUG_PRINT(("RTL8139C+ TxThresh read(b) val=0x%02x\n", ret
));
2878 case 0x43: /* Part of TxConfig register. Windows driver tries to read it */
2879 ret
= s
->TxConfig
>> 24;
2880 DEBUG_PRINT(("RTL8139C TxConfig at 0x43 read(b) val=0x%02x\n", ret
));
2884 DEBUG_PRINT(("RTL8139: not implemented read(b) addr=0x%x\n", addr
));
2892 static uint32_t rtl8139_io_readw(void *opaque
, uint8_t addr
)
2894 RTL8139State
*s
= opaque
;
2897 addr
&= 0xfe; /* mask lower bit */
2902 ret
= rtl8139_IntrMask_read(s
);
2906 ret
= rtl8139_IntrStatus_read(s
);
2910 ret
= rtl8139_MultiIntr_read(s
);
2914 ret
= rtl8139_RxBufPtr_read(s
);
2918 ret
= rtl8139_RxBufAddr_read(s
);
2922 ret
= rtl8139_BasicModeCtrl_read(s
);
2924 case BasicModeStatus
:
2925 ret
= rtl8139_BasicModeStatus_read(s
);
2928 ret
= s
->NWayAdvert
;
2929 DEBUG_PRINT(("RTL8139: NWayAdvert read(w) val=0x%04x\n", ret
));
2933 DEBUG_PRINT(("RTL8139: NWayLPAR read(w) val=0x%04x\n", ret
));
2936 ret
= s
->NWayExpansion
;
2937 DEBUG_PRINT(("RTL8139: NWayExpansion read(w) val=0x%04x\n", ret
));
2941 ret
= rtl8139_CpCmd_read(s
);
2945 ret
= rtl8139_IntrMitigate_read(s
);
2949 ret
= rtl8139_TSAD_read(s
);
2953 ret
= rtl8139_CSCR_read(s
);
2957 DEBUG_PRINT(("RTL8139: ioport read(w) addr=0x%x via read(b)\n", addr
));
2959 ret
= rtl8139_io_readb(opaque
, addr
);
2960 ret
|= rtl8139_io_readb(opaque
, addr
+ 1) << 8;
2962 DEBUG_PRINT(("RTL8139: ioport read(w) addr=0x%x val=0x%04x\n", addr
, ret
));
2969 static uint32_t rtl8139_io_readl(void *opaque
, uint8_t addr
)
2971 RTL8139State
*s
= opaque
;
2974 addr
&= 0xfc; /* also mask low 2 bits */
2981 DEBUG_PRINT(("RTL8139: RxMissed read val=0x%08x\n", ret
));
2985 ret
= rtl8139_TxConfig_read(s
);
2989 ret
= rtl8139_RxConfig_read(s
);
2992 case TxStatus0
... TxStatus0
+4*4-1:
2993 ret
= rtl8139_TxStatus_read(s
, addr
-TxStatus0
);
2996 case TxAddr0
... TxAddr0
+4*4-1:
2997 ret
= rtl8139_TxAddr_read(s
, addr
-TxAddr0
);
3001 ret
= rtl8139_RxBuf_read(s
);
3005 ret
= s
->RxRingAddrLO
;
3006 DEBUG_PRINT(("RTL8139: C+ RxRing low bits read val=0x%08x\n", ret
));
3010 ret
= s
->RxRingAddrHI
;
3011 DEBUG_PRINT(("RTL8139: C+ RxRing high bits read val=0x%08x\n", ret
));
3016 DEBUG_PRINT(("RTL8139: TCTR Timer read val=0x%08x\n", ret
));
3021 DEBUG_PRINT(("RTL8139: FlashReg TimerInt read val=0x%08x\n", ret
));
3025 DEBUG_PRINT(("RTL8139: ioport read(l) addr=0x%x via read(b)\n", addr
));
3027 ret
= rtl8139_io_readb(opaque
, addr
);
3028 ret
|= rtl8139_io_readb(opaque
, addr
+ 1) << 8;
3029 ret
|= rtl8139_io_readb(opaque
, addr
+ 2) << 16;
3030 ret
|= rtl8139_io_readb(opaque
, addr
+ 3) << 24;
3032 DEBUG_PRINT(("RTL8139: read(l) addr=0x%x val=%08x\n", addr
, ret
));
3041 static void rtl8139_ioport_writeb(void *opaque
, uint32_t addr
, uint32_t val
)
3043 rtl8139_io_writeb(opaque
, addr
& 0xFF, val
);
3046 static void rtl8139_ioport_writew(void *opaque
, uint32_t addr
, uint32_t val
)
3048 rtl8139_io_writew(opaque
, addr
& 0xFF, val
);
3051 static void rtl8139_ioport_writel(void *opaque
, uint32_t addr
, uint32_t val
)
3053 rtl8139_io_writel(opaque
, addr
& 0xFF, val
);
3056 static uint32_t rtl8139_ioport_readb(void *opaque
, uint32_t addr
)
3058 return rtl8139_io_readb(opaque
, addr
& 0xFF);
3061 static uint32_t rtl8139_ioport_readw(void *opaque
, uint32_t addr
)
3063 return rtl8139_io_readw(opaque
, addr
& 0xFF);
3066 static uint32_t rtl8139_ioport_readl(void *opaque
, uint32_t addr
)
3068 return rtl8139_io_readl(opaque
, addr
& 0xFF);
3073 static void rtl8139_mmio_writeb(void *opaque
, target_phys_addr_t addr
, uint32_t val
)
3075 rtl8139_io_writeb(opaque
, addr
& 0xFF, val
);
3078 static void rtl8139_mmio_writew(void *opaque
, target_phys_addr_t addr
, uint32_t val
)
3080 #ifdef TARGET_WORDS_BIGENDIAN
3083 rtl8139_io_writew(opaque
, addr
& 0xFF, val
);
3086 static void rtl8139_mmio_writel(void *opaque
, target_phys_addr_t addr
, uint32_t val
)
3088 #ifdef TARGET_WORDS_BIGENDIAN
3091 rtl8139_io_writel(opaque
, addr
& 0xFF, val
);
3094 static uint32_t rtl8139_mmio_readb(void *opaque
, target_phys_addr_t addr
)
3096 return rtl8139_io_readb(opaque
, addr
& 0xFF);
3099 static uint32_t rtl8139_mmio_readw(void *opaque
, target_phys_addr_t addr
)
3101 uint32_t val
= rtl8139_io_readw(opaque
, addr
& 0xFF);
3102 #ifdef TARGET_WORDS_BIGENDIAN
3108 static uint32_t rtl8139_mmio_readl(void *opaque
, target_phys_addr_t addr
)
3110 uint32_t val
= rtl8139_io_readl(opaque
, addr
& 0xFF);
3111 #ifdef TARGET_WORDS_BIGENDIAN
3119 static void rtl8139_save(QEMUFile
* f
,void* opaque
)
3121 RTL8139State
* s
= opaque
;
3124 pci_device_save(&s
->dev
, f
);
3126 qemu_put_buffer(f
, s
->phys
, 6);
3127 qemu_put_buffer(f
, s
->mult
, 8);
3131 qemu_put_be32s(f
, &s
->TxStatus
[i
]); /* TxStatus0 */
3135 qemu_put_be32s(f
, &s
->TxAddr
[i
]); /* TxAddr0 */
3138 qemu_put_be32s(f
, &s
->RxBuf
); /* Receive buffer */
3139 qemu_put_be32s(f
, &s
->RxBufferSize
);/* internal variable, receive ring buffer size in C mode */
3140 qemu_put_be32s(f
, &s
->RxBufPtr
);
3141 qemu_put_be32s(f
, &s
->RxBufAddr
);
3143 qemu_put_be16s(f
, &s
->IntrStatus
);
3144 qemu_put_be16s(f
, &s
->IntrMask
);
3146 qemu_put_be32s(f
, &s
->TxConfig
);
3147 qemu_put_be32s(f
, &s
->RxConfig
);
3148 qemu_put_be32s(f
, &s
->RxMissed
);
3149 qemu_put_be16s(f
, &s
->CSCR
);
3151 qemu_put_8s(f
, &s
->Cfg9346
);
3152 qemu_put_8s(f
, &s
->Config0
);
3153 qemu_put_8s(f
, &s
->Config1
);
3154 qemu_put_8s(f
, &s
->Config3
);
3155 qemu_put_8s(f
, &s
->Config4
);
3156 qemu_put_8s(f
, &s
->Config5
);
3158 qemu_put_8s(f
, &s
->clock_enabled
);
3159 qemu_put_8s(f
, &s
->bChipCmdState
);
3161 qemu_put_be16s(f
, &s
->MultiIntr
);
3163 qemu_put_be16s(f
, &s
->BasicModeCtrl
);
3164 qemu_put_be16s(f
, &s
->BasicModeStatus
);
3165 qemu_put_be16s(f
, &s
->NWayAdvert
);
3166 qemu_put_be16s(f
, &s
->NWayLPAR
);
3167 qemu_put_be16s(f
, &s
->NWayExpansion
);
3169 qemu_put_be16s(f
, &s
->CpCmd
);
3170 qemu_put_8s(f
, &s
->TxThresh
);
3173 qemu_put_be32s(f
, &i
); /* unused. */
3174 qemu_put_buffer(f
, s
->macaddr
, 6);
3175 qemu_put_be32(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_be32(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_be64(f
, s
->TCTR_base
);
3202 RTL8139TallyCounters_save(f
, &s
->tally_counters
);
3204 qemu_put_be32s(f
, &s
->cplus_enabled
);
3207 static int rtl8139_load(QEMUFile
* f
,void* opaque
,int version_id
)
3209 RTL8139State
* s
= opaque
;
3213 /* just 2 versions for now */
3217 if (version_id
>= 3) {
3218 ret
= pci_device_load(&s
->dev
, f
);
3223 /* saved since version 1 */
3224 qemu_get_buffer(f
, s
->phys
, 6);
3225 qemu_get_buffer(f
, s
->mult
, 8);
3229 qemu_get_be32s(f
, &s
->TxStatus
[i
]); /* TxStatus0 */
3233 qemu_get_be32s(f
, &s
->TxAddr
[i
]); /* TxAddr0 */
3236 qemu_get_be32s(f
, &s
->RxBuf
); /* Receive buffer */
3237 qemu_get_be32s(f
, &s
->RxBufferSize
);/* internal variable, receive ring buffer size in C mode */
3238 qemu_get_be32s(f
, &s
->RxBufPtr
);
3239 qemu_get_be32s(f
, &s
->RxBufAddr
);
3241 qemu_get_be16s(f
, &s
->IntrStatus
);
3242 qemu_get_be16s(f
, &s
->IntrMask
);
3244 qemu_get_be32s(f
, &s
->TxConfig
);
3245 qemu_get_be32s(f
, &s
->RxConfig
);
3246 qemu_get_be32s(f
, &s
->RxMissed
);
3247 qemu_get_be16s(f
, &s
->CSCR
);
3249 qemu_get_8s(f
, &s
->Cfg9346
);
3250 qemu_get_8s(f
, &s
->Config0
);
3251 qemu_get_8s(f
, &s
->Config1
);
3252 qemu_get_8s(f
, &s
->Config3
);
3253 qemu_get_8s(f
, &s
->Config4
);
3254 qemu_get_8s(f
, &s
->Config5
);
3256 qemu_get_8s(f
, &s
->clock_enabled
);
3257 qemu_get_8s(f
, &s
->bChipCmdState
);
3259 qemu_get_be16s(f
, &s
->MultiIntr
);
3261 qemu_get_be16s(f
, &s
->BasicModeCtrl
);
3262 qemu_get_be16s(f
, &s
->BasicModeStatus
);
3263 qemu_get_be16s(f
, &s
->NWayAdvert
);
3264 qemu_get_be16s(f
, &s
->NWayLPAR
);
3265 qemu_get_be16s(f
, &s
->NWayExpansion
);
3267 qemu_get_be16s(f
, &s
->CpCmd
);
3268 qemu_get_8s(f
, &s
->TxThresh
);
3270 qemu_get_be32s(f
, &i
); /* unused. */
3271 qemu_get_buffer(f
, s
->macaddr
, 6);
3272 s
->rtl8139_mmio_io_addr
=qemu_get_be32(f
);
3274 qemu_get_be32s(f
, &s
->currTxDesc
);
3275 qemu_get_be32s(f
, &s
->currCPlusRxDesc
);
3276 qemu_get_be32s(f
, &s
->currCPlusTxDesc
);
3277 qemu_get_be32s(f
, &s
->RxRingAddrLO
);
3278 qemu_get_be32s(f
, &s
->RxRingAddrHI
);
3280 for (i
=0; i
<EEPROM_9346_SIZE
; ++i
)
3282 qemu_get_be16s(f
, &s
->eeprom
.contents
[i
]);
3284 s
->eeprom
.mode
=qemu_get_be32(f
);
3285 qemu_get_be32s(f
, &s
->eeprom
.tick
);
3286 qemu_get_8s(f
, &s
->eeprom
.address
);
3287 qemu_get_be16s(f
, &s
->eeprom
.input
);
3288 qemu_get_be16s(f
, &s
->eeprom
.output
);
3290 qemu_get_8s(f
, &s
->eeprom
.eecs
);
3291 qemu_get_8s(f
, &s
->eeprom
.eesk
);
3292 qemu_get_8s(f
, &s
->eeprom
.eedi
);
3293 qemu_get_8s(f
, &s
->eeprom
.eedo
);
3295 /* saved since version 2 */
3296 if (version_id
>= 2)
3298 qemu_get_be32s(f
, &s
->TCTR
);
3299 qemu_get_be32s(f
, &s
->TimerInt
);
3300 s
->TCTR_base
=qemu_get_be64(f
);
3302 RTL8139TallyCounters_load(f
, &s
->tally_counters
);
3306 /* not saved, use default */
3311 RTL8139TallyCounters_clear(&s
->tally_counters
);
3314 if (version_id
>= 4) {
3315 qemu_get_be32s(f
, &s
->cplus_enabled
);
3317 s
->cplus_enabled
= s
->CpCmd
!= 0;
3323 /***********************************************************/
3324 /* PCI RTL8139 definitions */
3326 static void rtl8139_mmio_map(PCIDevice
*pci_dev
, int region_num
,
3327 uint32_t addr
, uint32_t size
, int type
)
3329 RTL8139State
*s
= DO_UPCAST(RTL8139State
, dev
, pci_dev
);
3331 cpu_register_physical_memory(addr
+ 0, 0x100, s
->rtl8139_mmio_io_addr
);
3334 static void rtl8139_ioport_map(PCIDevice
*pci_dev
, int region_num
,
3335 uint32_t addr
, uint32_t size
, int type
)
3337 RTL8139State
*s
= DO_UPCAST(RTL8139State
, dev
, pci_dev
);
3339 register_ioport_write(addr
, 0x100, 1, rtl8139_ioport_writeb
, s
);
3340 register_ioport_read( addr
, 0x100, 1, rtl8139_ioport_readb
, s
);
3342 register_ioport_write(addr
, 0x100, 2, rtl8139_ioport_writew
, s
);
3343 register_ioport_read( addr
, 0x100, 2, rtl8139_ioport_readw
, s
);
3345 register_ioport_write(addr
, 0x100, 4, rtl8139_ioport_writel
, s
);
3346 register_ioport_read( addr
, 0x100, 4, rtl8139_ioport_readl
, s
);
3349 static CPUReadMemoryFunc
* const rtl8139_mmio_read
[3] = {
3355 static CPUWriteMemoryFunc
* const rtl8139_mmio_write
[3] = {
3356 rtl8139_mmio_writeb
,
3357 rtl8139_mmio_writew
,
3358 rtl8139_mmio_writel
,
3361 static inline int64_t rtl8139_get_next_tctr_time(RTL8139State
*s
, int64_t current_time
)
3363 int64_t next_time
= current_time
+
3364 muldiv64(1, ticks_per_sec
, PCI_FREQUENCY
);
3365 if (next_time
<= current_time
)
3366 next_time
= current_time
+ 1;
3370 #ifdef RTL8139_ONBOARD_TIMER
3371 static void rtl8139_timer(void *opaque
)
3373 RTL8139State
*s
= opaque
;
3380 if (!s
->clock_enabled
)
3382 DEBUG_PRINT(("RTL8139: >>> timer: clock is not running\n"));
3386 curr_time
= qemu_get_clock(vm_clock
);
3388 curr_tick
= muldiv64(curr_time
- s
->TCTR_base
, PCI_FREQUENCY
, ticks_per_sec
);
3390 if (s
->TimerInt
&& curr_tick
>= s
->TimerInt
)
3392 if (s
->TCTR
< s
->TimerInt
|| curr_tick
< s
->TCTR
)
3398 s
->TCTR
= curr_tick
;
3400 // DEBUG_PRINT(("RTL8139: >>> timer: tick=%08u\n", s->TCTR));
3404 DEBUG_PRINT(("RTL8139: >>> timer: timeout tick=%08u\n", s
->TCTR
));
3405 s
->IntrStatus
|= PCSTimeout
;
3406 rtl8139_update_irq(s
);
3409 qemu_mod_timer(s
->timer
,
3410 rtl8139_get_next_tctr_time(s
,curr_time
));
3412 #endif /* RTL8139_ONBOARD_TIMER */
3414 static void rtl8139_cleanup(VLANClientState
*vc
)
3416 RTL8139State
*s
= vc
->opaque
;
3418 if (s
->cplus_txbuffer
) {
3419 qemu_free(s
->cplus_txbuffer
);
3420 s
->cplus_txbuffer
= NULL
;
3423 #ifdef RTL8139_ONBOARD_TIMER
3424 qemu_del_timer(s
->timer
);
3425 qemu_free_timer(s
->timer
);
3428 unregister_savevm("rtl8139", s
);
3431 static int pci_rtl8139_uninit(PCIDevice
*dev
)
3433 RTL8139State
*s
= DO_UPCAST(RTL8139State
, dev
, dev
);
3435 cpu_unregister_io_memory(s
->rtl8139_mmio_io_addr
);
3440 static int pci_rtl8139_init(PCIDevice
*dev
)
3442 RTL8139State
* s
= DO_UPCAST(RTL8139State
, dev
, dev
);
3445 s
->dev
.unregister
= pci_rtl8139_uninit
;
3447 pci_conf
= s
->dev
.config
;
3448 pci_config_set_vendor_id(pci_conf
, PCI_VENDOR_ID_REALTEK
);
3449 pci_config_set_device_id(pci_conf
, PCI_DEVICE_ID_REALTEK_8139
);
3450 pci_conf
[0x04] = 0x05; /* command = I/O space, Bus Master */
3451 pci_conf
[0x08] = RTL8139_PCI_REVID
; /* PCI revision ID; >=0x20 is for 8139C+ */
3452 pci_config_set_class(pci_conf
, PCI_CLASS_NETWORK_ETHERNET
);
3453 pci_conf
[PCI_HEADER_TYPE
] = PCI_HEADER_TYPE_NORMAL
; /* header_type */
3454 pci_conf
[0x3d] = 1; /* interrupt pin 0 */
3455 pci_conf
[0x34] = 0xdc;
3457 /* I/O handler for memory-mapped I/O */
3458 s
->rtl8139_mmio_io_addr
=
3459 cpu_register_io_memory(rtl8139_mmio_read
, rtl8139_mmio_write
, s
);
3461 pci_register_bar(&s
->dev
, 0, 0x100,
3462 PCI_ADDRESS_SPACE_IO
, rtl8139_ioport_map
);
3464 pci_register_bar(&s
->dev
, 1, 0x100,
3465 PCI_ADDRESS_SPACE_MEM
, rtl8139_mmio_map
);
3467 qdev_get_macaddr(&dev
->qdev
, s
->macaddr
);
3468 qemu_register_reset(rtl8139_reset
, s
);
3470 s
->vc
= qdev_get_vlan_client(&dev
->qdev
,
3471 rtl8139_can_receive
, rtl8139_receive
, NULL
,
3472 rtl8139_cleanup
, s
);
3474 qemu_format_nic_info_str(s
->vc
, s
->macaddr
);
3476 s
->cplus_txbuffer
= NULL
;
3477 s
->cplus_txbuffer_len
= 0;
3478 s
->cplus_txbuffer_offset
= 0;
3480 register_savevm("rtl8139", -1, 4, rtl8139_save
, rtl8139_load
, s
);
3482 #ifdef RTL8139_ONBOARD_TIMER
3483 s
->timer
= qemu_new_timer(vm_clock
, rtl8139_timer
, s
);
3485 qemu_mod_timer(s
->timer
,
3486 rtl8139_get_next_tctr_time(s
,qemu_get_clock(vm_clock
)));
3487 #endif /* RTL8139_ONBOARD_TIMER */
3491 static PCIDeviceInfo rtl8139_info
= {
3492 .qdev
.name
= "rtl8139",
3493 .qdev
.size
= sizeof(RTL8139State
),
3494 .init
= pci_rtl8139_init
,
3497 static void rtl8139_register_devices(void)
3499 pci_qdev_register(&rtl8139_info
);
3502 device_init(rtl8139_register_devices
)