]> git.proxmox.com Git - mirror_qemu.git/blob - hw/net/e1000.c
projects / mirror_qemu.git / blob
? search:


da72776ec65c231ba32d5a103fa1e094887045d5
[mirror_qemu.git] / hw / net / e1000.c
1 /*
2 * QEMU e1000 emulation
3 *
4 * Software developer's manual:
5 * http://download.intel.com/design/network/manuals/8254x_GBe_SDM.pdf
6 *
7 * Nir Peleg, Tutis Systems Ltd. for Qumranet Inc.
8 * Copyright (c) 2008 Qumranet
9 * Based on work done by:
10 * Copyright (c) 2007 Dan Aloni
11 * Copyright (c) 2004 Antony T Curtis
12 *
13 * This library is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2 of the License, or (at your option) any later version.
17 *
18 * This library is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * Lesser General Public License for more details.
22 *
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
25 */
26
27
28 #include "hw/hw.h"
29 #include "hw/pci/pci.h"
30 #include "net/net.h"
31 #include "net/checksum.h"
32 #include "hw/loader.h"
33 #include "sysemu/sysemu.h"
34 #include "sysemu/dma.h"
35 #include "qemu/iov.h"
36 #include "qemu/range.h"
37
38 #include "e1000_regs.h"
39
40 #define E1000_DEBUG
41
42 #ifdef E1000_DEBUG
43 enum {
44 DEBUG_GENERAL, DEBUG_IO, DEBUG_MMIO, DEBUG_INTERRUPT,
45 DEBUG_RX, DEBUG_TX, DEBUG_MDIC, DEBUG_EEPROM,
46 DEBUG_UNKNOWN, DEBUG_TXSUM, DEBUG_TXERR, DEBUG_RXERR,
47 DEBUG_RXFILTER, DEBUG_PHY, DEBUG_NOTYET,
48 };
49 #define DBGBIT(x) (1<<DEBUG_##x)
50 static int debugflags = DBGBIT(TXERR) | DBGBIT(GENERAL);
51
52 #define DBGOUT(what, fmt, ...) do { \
53 if (debugflags & DBGBIT(what)) \
54 fprintf(stderr, "e1000: " fmt, ## __VA_ARGS__); \
55 } while (0)
56 #else
57 #define DBGOUT(what, fmt, ...) do {} while (0)
58 #endif
59
60 #define IOPORT_SIZE 0x40
61 #define PNPMMIO_SIZE 0x20000
62 #define MIN_BUF_SIZE 60 /* Min. octets in an ethernet frame sans FCS */
63
64 /* this is the size past which hardware will drop packets when setting LPE=0 */
65 #define MAXIMUM_ETHERNET_VLAN_SIZE 1522
66 /* this is the size past which hardware will drop packets when setting LPE=1 */
67 #define MAXIMUM_ETHERNET_LPE_SIZE 16384
68
69 #define MAXIMUM_ETHERNET_HDR_LEN (14+4)
70
71 /*
72 * HW models:
73 * E1000_DEV_ID_82540EM works with Windows, Linux, and OS X <= 10.8
74 * E1000_DEV_ID_82544GC_COPPER appears to work; not well tested
75 * E1000_DEV_ID_82545EM_COPPER works with Linux and OS X >= 10.6
76 * Others never tested
77 */
78
79 typedef struct E1000State_st {
80 /*< private >*/
81 PCIDevice parent_obj;
82 /*< public >*/
83
84 NICState *nic;
85 NICConf conf;
86 MemoryRegion mmio;
87 MemoryRegion io;
88
89 uint32_t mac_reg[0x8000];
90 uint16_t phy_reg[0x20];
91 uint16_t eeprom_data[64];
92
93 uint32_t rxbuf_size;
94 uint32_t rxbuf_min_shift;
95 struct e1000_tx {
96 unsigned char header[256];
97 unsigned char vlan_header[4];
98 /* Fields vlan and data must not be reordered or separated. */
99 unsigned char vlan[4];
100 unsigned char data[0x10000];
101 uint16_t size;
102 unsigned char sum_needed;
103 unsigned char vlan_needed;
104 uint8_t ipcss;
105 uint8_t ipcso;
106 uint16_t ipcse;
107 uint8_t tucss;
108 uint8_t tucso;
109 uint16_t tucse;
110 uint8_t hdr_len;
111 uint16_t mss;
112 uint32_t paylen;
113 uint16_t tso_frames;
114 char tse;
115 int8_t ip;
116 int8_t tcp;
117 char cptse; // current packet tse bit
118 } tx;
119
120 struct {
121 uint32_t val_in; /* shifted in from guest driver */
122 uint16_t bitnum_in;
123 uint16_t bitnum_out;
124 uint16_t reading;
125 uint32_t old_eecd;
126 } eecd_state;
127
128 QEMUTimer *autoneg_timer;
129
130 QEMUTimer *mit_timer; /* Mitigation timer. */
131 bool mit_timer_on; /* Mitigation timer is running. */
132 bool mit_irq_level; /* Tracks interrupt pin level. */
133 uint32_t mit_ide; /* Tracks E1000_TXD_CMD_IDE bit. */
134
135 /* Compatibility flags for migration to/from qemu 1.3.0 and older */
136 #define E1000_FLAG_AUTONEG_BIT 0
137 #define E1000_FLAG_MIT_BIT 1
138 #define E1000_FLAG_AUTONEG (1 << E1000_FLAG_AUTONEG_BIT)
139 #define E1000_FLAG_MIT (1 << E1000_FLAG_MIT_BIT)
140 uint32_t compat_flags;
141 } E1000State;
142
143 typedef struct E1000BaseClass {
144 PCIDeviceClass parent_class;
145 uint16_t phy_id2;
146 } E1000BaseClass;
147
148 #define TYPE_E1000_BASE "e1000-base"
149
150 #define E1000(obj) \
151 OBJECT_CHECK(E1000State, (obj), TYPE_E1000_BASE)
152
153 #define E1000_DEVICE_CLASS(klass) \
154 OBJECT_CLASS_CHECK(E1000BaseClass, (klass), TYPE_E1000_BASE)
155 #define E1000_DEVICE_GET_CLASS(obj) \
156 OBJECT_GET_CLASS(E1000BaseClass, (obj), TYPE_E1000_BASE)
157
158 #define defreg(x) x = (E1000_##x>>2)
159 enum {
160 defreg(CTRL), defreg(EECD), defreg(EERD), defreg(GPRC),
161 defreg(GPTC), defreg(ICR), defreg(ICS), defreg(IMC),
162 defreg(IMS), defreg(LEDCTL), defreg(MANC), defreg(MDIC),
163 defreg(MPC), defreg(PBA), defreg(RCTL), defreg(RDBAH),
164 defreg(RDBAL), defreg(RDH), defreg(RDLEN), defreg(RDT),
165 defreg(STATUS), defreg(SWSM), defreg(TCTL), defreg(TDBAH),
166 defreg(TDBAL), defreg(TDH), defreg(TDLEN), defreg(TDT),
167 defreg(TORH), defreg(TORL), defreg(TOTH), defreg(TOTL),
168 defreg(TPR), defreg(TPT), defreg(TXDCTL), defreg(WUFC),
169 defreg(RA), defreg(MTA), defreg(CRCERRS), defreg(VFTA),
170 defreg(VET), defreg(RDTR), defreg(RADV), defreg(TADV),
171 defreg(ITR),
172 };
173
174 static void
175 e1000_link_down(E1000State *s)
176 {
177 s->mac_reg[STATUS] &= ~E1000_STATUS_LU;
178 s->phy_reg[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
179 s->phy_reg[PHY_STATUS] &= ~MII_SR_AUTONEG_COMPLETE;
180 s->phy_reg[PHY_LP_ABILITY] &= ~MII_LPAR_LPACK;
181 }
182
183 static void
184 e1000_link_up(E1000State *s)
185 {
186 s->mac_reg[STATUS] |= E1000_STATUS_LU;
187 s->phy_reg[PHY_STATUS] |= MII_SR_LINK_STATUS;
188
189 /* E1000_STATUS_LU is tested by e1000_can_receive() */
190 qemu_flush_queued_packets(qemu_get_queue(s->nic));
191 }
192
193 static bool
194 have_autoneg(E1000State *s)
195 {
196 return (s->compat_flags & E1000_FLAG_AUTONEG) &&
197 (s->phy_reg[PHY_CTRL] & MII_CR_AUTO_NEG_EN);
198 }
199
200 static void
201 set_phy_ctrl(E1000State *s, int index, uint16_t val)
202 {
203 /* bits 0-5 reserved; MII_CR_[RESTART_AUTO_NEG,RESET] are self clearing */
204 s->phy_reg[PHY_CTRL] = val & ~(0x3f |
205 MII_CR_RESET |
206 MII_CR_RESTART_AUTO_NEG);
207
208 /*
209 * QEMU 1.3 does not support link auto-negotiation emulation, so if we
210 * migrate during auto negotiation, after migration the link will be
211 * down.
212 */
213 if (have_autoneg(s) && (val & MII_CR_RESTART_AUTO_NEG)) {
214 e1000_link_down(s);
215 DBGOUT(PHY, "Start link auto negotiation\n");
216 timer_mod(s->autoneg_timer,
217 qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500);
218 }
219 }
220
221 static void (*phyreg_writeops[])(E1000State *, int, uint16_t) = {
222 [PHY_CTRL] = set_phy_ctrl,
223 };
224
225 enum { NPHYWRITEOPS = ARRAY_SIZE(phyreg_writeops) };
226
227 enum { PHY_R = 1, PHY_W = 2, PHY_RW = PHY_R | PHY_W };
228 static const char phy_regcap[0x20] = {
229 [PHY_STATUS] = PHY_R, [M88E1000_EXT_PHY_SPEC_CTRL] = PHY_RW,
230 [PHY_ID1] = PHY_R, [M88E1000_PHY_SPEC_CTRL] = PHY_RW,
231 [PHY_CTRL] = PHY_RW, [PHY_1000T_CTRL] = PHY_RW,
232 [PHY_LP_ABILITY] = PHY_R, [PHY_1000T_STATUS] = PHY_R,
233 [PHY_AUTONEG_ADV] = PHY_RW, [M88E1000_RX_ERR_CNTR] = PHY_R,
234 [PHY_ID2] = PHY_R, [M88E1000_PHY_SPEC_STATUS] = PHY_R,
235 [PHY_AUTONEG_EXP] = PHY_R,
236 };
237
238 /* PHY_ID2 documented in 8254x_GBe_SDM.pdf, pp. 250 */
239 static const uint16_t phy_reg_init[] = {
240 [PHY_CTRL] = MII_CR_SPEED_SELECT_MSB |
241 MII_CR_FULL_DUPLEX |
242 MII_CR_AUTO_NEG_EN,
243
244 [PHY_STATUS] = MII_SR_EXTENDED_CAPS |
245 MII_SR_LINK_STATUS | /* link initially up */
246 MII_SR_AUTONEG_CAPS |
247 /* MII_SR_AUTONEG_COMPLETE: initially NOT completed */
248 MII_SR_PREAMBLE_SUPPRESS |
249 MII_SR_EXTENDED_STATUS |
250 MII_SR_10T_HD_CAPS |
251 MII_SR_10T_FD_CAPS |
252 MII_SR_100X_HD_CAPS |
253 MII_SR_100X_FD_CAPS,
254
255 [PHY_ID1] = 0x141,
256 /* [PHY_ID2] configured per DevId, from e1000_reset() */
257 [PHY_AUTONEG_ADV] = 0xde1,
258 [PHY_LP_ABILITY] = 0x1e0,
259 [PHY_1000T_CTRL] = 0x0e00,
260 [PHY_1000T_STATUS] = 0x3c00,
261 [M88E1000_PHY_SPEC_CTRL] = 0x360,
262 [M88E1000_PHY_SPEC_STATUS] = 0xac00,
263 [M88E1000_EXT_PHY_SPEC_CTRL] = 0x0d60,
264 };
265
266 static const uint32_t mac_reg_init[] = {
267 [PBA] = 0x00100030,
268 [LEDCTL] = 0x602,
269 [CTRL] = E1000_CTRL_SWDPIN2 | E1000_CTRL_SWDPIN0 |
270 E1000_CTRL_SPD_1000 | E1000_CTRL_SLU,
271 [STATUS] = 0x80000000 | E1000_STATUS_GIO_MASTER_ENABLE |
272 E1000_STATUS_ASDV | E1000_STATUS_MTXCKOK |
273 E1000_STATUS_SPEED_1000 | E1000_STATUS_FD |
274 E1000_STATUS_LU,
275 [MANC] = E1000_MANC_EN_MNG2HOST | E1000_MANC_RCV_TCO_EN |
276 E1000_MANC_ARP_EN | E1000_MANC_0298_EN |
277 E1000_MANC_RMCP_EN,
278 };
279
280 /* Helper function, *curr == 0 means the value is not set */
281 static inline void
282 mit_update_delay(uint32_t *curr, uint32_t value)
283 {
284 if (value && (*curr == 0 || value < *curr)) {
285 *curr = value;
286 }
287 }
288
289 static void
290 set_interrupt_cause(E1000State *s, int index, uint32_t val)
291 {
292 PCIDevice *d = PCI_DEVICE(s);
293 uint32_t pending_ints;
294 uint32_t mit_delay;
295
296 s->mac_reg[ICR] = val;
297
298 /*
299 * Make sure ICR and ICS registers have the same value.
300 * The spec says that the ICS register is write-only. However in practice,
301 * on real hardware ICS is readable, and for reads it has the same value as
302 * ICR (except that ICS does not have the clear on read behaviour of ICR).
303 *
304 * The VxWorks PRO/1000 driver uses this behaviour.
305 */
306 s->mac_reg[ICS] = val;
307
308 pending_ints = (s->mac_reg[IMS] & s->mac_reg[ICR]);
309 if (!s->mit_irq_level && pending_ints) {
310 /*
311 * Here we detect a potential raising edge. We postpone raising the
312 * interrupt line if we are inside the mitigation delay window
313 * (s->mit_timer_on == 1).
314 * We provide a partial implementation of interrupt mitigation,
315 * emulating only RADV, TADV and ITR (lower 16 bits, 1024ns units for
316 * RADV and TADV, 256ns units for ITR). RDTR is only used to enable
317 * RADV; relative timers based on TIDV and RDTR are not implemented.
318 */
319 if (s->mit_timer_on) {
320 return;
321 }
322 if (s->compat_flags & E1000_FLAG_MIT) {
323 /* Compute the next mitigation delay according to pending
324 * interrupts and the current values of RADV (provided
325 * RDTR!=0), TADV and ITR.
326 * Then rearm the timer.
327 */
328 mit_delay = 0;
329 if (s->mit_ide &&
330 (pending_ints & (E1000_ICR_TXQE | E1000_ICR_TXDW))) {
331 mit_update_delay(&mit_delay, s->mac_reg[TADV] * 4);
332 }
333 if (s->mac_reg[RDTR] && (pending_ints & E1000_ICS_RXT0)) {
334 mit_update_delay(&mit_delay, s->mac_reg[RADV] * 4);
335 }
336 mit_update_delay(&mit_delay, s->mac_reg[ITR]);
337
338 if (mit_delay) {
339 s->mit_timer_on = 1;
340 timer_mod(s->mit_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
341 mit_delay * 256);
342 }
343 s->mit_ide = 0;
344 }
345 }
346
347 s->mit_irq_level = (pending_ints != 0);
348 pci_set_irq(d, s->mit_irq_level);
349 }
350
351 static void
352 e1000_mit_timer(void *opaque)
353 {
354 E1000State *s = opaque;
355
356 s->mit_timer_on = 0;
357 /* Call set_interrupt_cause to update the irq level (if necessary). */
358 set_interrupt_cause(s, 0, s->mac_reg[ICR]);
359 }
360
361 static void
362 set_ics(E1000State *s, int index, uint32_t val)
363 {
364 DBGOUT(INTERRUPT, "set_ics %x, ICR %x, IMR %x\n", val, s->mac_reg[ICR],
365 s->mac_reg[IMS]);
366 set_interrupt_cause(s, 0, val | s->mac_reg[ICR]);
367 }
368
369 static void
370 e1000_autoneg_timer(void *opaque)
371 {
372 E1000State *s = opaque;
373 if (!qemu_get_queue(s->nic)->link_down) {
374 e1000_link_up(s);
375 s->phy_reg[PHY_LP_ABILITY] |= MII_LPAR_LPACK;
376 s->phy_reg[PHY_STATUS] |= MII_SR_AUTONEG_COMPLETE;
377 DBGOUT(PHY, "Auto negotiation is completed\n");
378 set_ics(s, 0, E1000_ICS_LSC); /* signal link status change to guest */
379 }
380 }
381
382 static int
383 rxbufsize(uint32_t v)
384 {
385 v &= E1000_RCTL_BSEX | E1000_RCTL_SZ_16384 | E1000_RCTL_SZ_8192 |
386 E1000_RCTL_SZ_4096 | E1000_RCTL_SZ_2048 | E1000_RCTL_SZ_1024 |
387 E1000_RCTL_SZ_512 | E1000_RCTL_SZ_256;
388 switch (v) {
389 case E1000_RCTL_BSEX | E1000_RCTL_SZ_16384:
390 return 16384;
391 case E1000_RCTL_BSEX | E1000_RCTL_SZ_8192:
392 return 8192;
393 case E1000_RCTL_BSEX | E1000_RCTL_SZ_4096:
394 return 4096;
395 case E1000_RCTL_SZ_1024:
396 return 1024;
397 case E1000_RCTL_SZ_512:
398 return 512;
399 case E1000_RCTL_SZ_256:
400 return 256;
401 }
402 return 2048;
403 }
404
405 static void e1000_reset(void *opaque)
406 {
407 E1000State *d = opaque;
408 E1000BaseClass *edc = E1000_DEVICE_GET_CLASS(d);
409 uint8_t *macaddr = d->conf.macaddr.a;
410 int i;
411
412 timer_del(d->autoneg_timer);
413 timer_del(d->mit_timer);
414 d->mit_timer_on = 0;
415 d->mit_irq_level = 0;
416 d->mit_ide = 0;
417 memset(d->phy_reg, 0, sizeof d->phy_reg);
418 memmove(d->phy_reg, phy_reg_init, sizeof phy_reg_init);
419 d->phy_reg[PHY_ID2] = edc->phy_id2;
420 memset(d->mac_reg, 0, sizeof d->mac_reg);
421 memmove(d->mac_reg, mac_reg_init, sizeof mac_reg_init);
422 d->rxbuf_min_shift = 1;
423 memset(&d->tx, 0, sizeof d->tx);
424
425 if (qemu_get_queue(d->nic)->link_down) {
426 e1000_link_down(d);
427 }
428
429 /* Some guests expect pre-initialized RAH/RAL (AddrValid flag + MACaddr) */
430 d->mac_reg[RA] = 0;
431 d->mac_reg[RA + 1] = E1000_RAH_AV;
432 for (i = 0; i < 4; i++) {
433 d->mac_reg[RA] |= macaddr[i] << (8 * i);
434 d->mac_reg[RA + 1] |= (i < 2) ? macaddr[i + 4] << (8 * i) : 0;
435 }
436 qemu_format_nic_info_str(qemu_get_queue(d->nic), macaddr);
437 }
438
439 static void
440 set_ctrl(E1000State *s, int index, uint32_t val)
441 {
442 /* RST is self clearing */
443 s->mac_reg[CTRL] = val & ~E1000_CTRL_RST;
444 }
445
446 static void
447 set_rx_control(E1000State *s, int index, uint32_t val)
448 {
449 s->mac_reg[RCTL] = val;
450 s->rxbuf_size = rxbufsize(val);
451 s->rxbuf_min_shift = ((val / E1000_RCTL_RDMTS_QUAT) & 3) + 1;
452 DBGOUT(RX, "RCTL: %d, mac_reg[RCTL] = 0x%x\n", s->mac_reg[RDT],
453 s->mac_reg[RCTL]);
454 qemu_flush_queued_packets(qemu_get_queue(s->nic));
455 }
456
457 static void
458 set_mdic(E1000State *s, int index, uint32_t val)
459 {
460 uint32_t data = val & E1000_MDIC_DATA_MASK;
461 uint32_t addr = ((val & E1000_MDIC_REG_MASK) >> E1000_MDIC_REG_SHIFT);
462
463 if ((val & E1000_MDIC_PHY_MASK) >> E1000_MDIC_PHY_SHIFT != 1) // phy #
464 val = s->mac_reg[MDIC] | E1000_MDIC_ERROR;
465 else if (val & E1000_MDIC_OP_READ) {
466 DBGOUT(MDIC, "MDIC read reg 0x%x\n", addr);
467 if (!(phy_regcap[addr] & PHY_R)) {
468 DBGOUT(MDIC, "MDIC read reg %x unhandled\n", addr);
469 val |= E1000_MDIC_ERROR;
470 } else
471 val = (val ^ data) | s->phy_reg[addr];
472 } else if (val & E1000_MDIC_OP_WRITE) {
473 DBGOUT(MDIC, "MDIC write reg 0x%x, value 0x%x\n", addr, data);
474 if (!(phy_regcap[addr] & PHY_W)) {
475 DBGOUT(MDIC, "MDIC write reg %x unhandled\n", addr);
476 val |= E1000_MDIC_ERROR;
477 } else {
478 if (addr < NPHYWRITEOPS && phyreg_writeops[addr]) {
479 phyreg_writeops[addr](s, index, data);
480 } else {
481 s->phy_reg[addr] = data;
482 }
483 }
484 }
485 s->mac_reg[MDIC] = val | E1000_MDIC_READY;
486
487 if (val & E1000_MDIC_INT_EN) {
488 set_ics(s, 0, E1000_ICR_MDAC);
489 }
490 }
491
492 static uint32_t
493 get_eecd(E1000State *s, int index)
494 {
495 uint32_t ret = E1000_EECD_PRES|E1000_EECD_GNT | s->eecd_state.old_eecd;
496
497 DBGOUT(EEPROM, "reading eeprom bit %d (reading %d)\n",
498 s->eecd_state.bitnum_out, s->eecd_state.reading);
499 if (!s->eecd_state.reading ||
500 ((s->eeprom_data[(s->eecd_state.bitnum_out >> 4) & 0x3f] >>
501 ((s->eecd_state.bitnum_out & 0xf) ^ 0xf))) & 1)
502 ret |= E1000_EECD_DO;
503 return ret;
504 }
505
506 static void
507 set_eecd(E1000State *s, int index, uint32_t val)
508 {
509 uint32_t oldval = s->eecd_state.old_eecd;
510
511 s->eecd_state.old_eecd = val & (E1000_EECD_SK | E1000_EECD_CS |
512 E1000_EECD_DI|E1000_EECD_FWE_MASK|E1000_EECD_REQ);
513 if (!(E1000_EECD_CS & val)) { /* CS inactive; nothing to do */
514 return;
515 }
516 if (E1000_EECD_CS & (val ^ oldval)) { /* CS rise edge; reset state */
517 s->eecd_state.val_in = 0;
518 s->eecd_state.bitnum_in = 0;
519 s->eecd_state.bitnum_out = 0;
520 s->eecd_state.reading = 0;
521 }
522 if (!(E1000_EECD_SK & (val ^ oldval))) { /* no clock edge */
523 return;
524 }
525 if (!(E1000_EECD_SK & val)) { /* falling edge */
526 s->eecd_state.bitnum_out++;
527 return;
528 }
529 s->eecd_state.val_in <<= 1;
530 if (val & E1000_EECD_DI)
531 s->eecd_state.val_in |= 1;
532 if (++s->eecd_state.bitnum_in == 9 && !s->eecd_state.reading) {
533 s->eecd_state.bitnum_out = ((s->eecd_state.val_in & 0x3f)<<4)-1;
534 s->eecd_state.reading = (((s->eecd_state.val_in >> 6) & 7) ==
535 EEPROM_READ_OPCODE_MICROWIRE);
536 }
537 DBGOUT(EEPROM, "eeprom bitnum in %d out %d, reading %d\n",
538 s->eecd_state.bitnum_in, s->eecd_state.bitnum_out,
539 s->eecd_state.reading);
540 }
541
542 static uint32_t
543 flash_eerd_read(E1000State *s, int x)
544 {
545 unsigned int index, r = s->mac_reg[EERD] & ~E1000_EEPROM_RW_REG_START;
546
547 if ((s->mac_reg[EERD] & E1000_EEPROM_RW_REG_START) == 0)
548 return (s->mac_reg[EERD]);
549
550 if ((index = r >> E1000_EEPROM_RW_ADDR_SHIFT) > EEPROM_CHECKSUM_REG)
551 return (E1000_EEPROM_RW_REG_DONE | r);
552
553 return ((s->eeprom_data[index] << E1000_EEPROM_RW_REG_DATA) |
554 E1000_EEPROM_RW_REG_DONE | r);
555 }
556
557 static void
558 putsum(uint8_t *data, uint32_t n, uint32_t sloc, uint32_t css, uint32_t cse)
559 {
560 uint32_t sum;
561
562 if (cse && cse < n)
563 n = cse + 1;
564 if (sloc < n-1) {
565 sum = net_checksum_add(n-css, data+css);
566 stw_be_p(data + sloc, net_checksum_finish(sum));
567 }
568 }
569
570 static inline int
571 vlan_enabled(E1000State *s)
572 {
573 return ((s->mac_reg[CTRL] & E1000_CTRL_VME) != 0);
574 }
575
576 static inline int
577 vlan_rx_filter_enabled(E1000State *s)
578 {
579 return ((s->mac_reg[RCTL] & E1000_RCTL_VFE) != 0);
580 }
581
582 static inline int
583 is_vlan_packet(E1000State *s, const uint8_t *buf)
584 {
585 return (be16_to_cpup((uint16_t *)(buf + 12)) ==
586 le16_to_cpu(s->mac_reg[VET]));
587 }
588
589 static inline int
590 is_vlan_txd(uint32_t txd_lower)
591 {
592 return ((txd_lower & E1000_TXD_CMD_VLE) != 0);
593 }
594
595 /* FCS aka Ethernet CRC-32. We don't get it from backends and can't
596 * fill it in, just pad descriptor length by 4 bytes unless guest
597 * told us to strip it off the packet. */
598 static inline int
599 fcs_len(E1000State *s)
600 {
601 return (s->mac_reg[RCTL] & E1000_RCTL_SECRC) ? 0 : 4;
602 }
603
604 static void
605 e1000_send_packet(E1000State *s, const uint8_t *buf, int size)
606 {
607 NetClientState *nc = qemu_get_queue(s->nic);
608 if (s->phy_reg[PHY_CTRL] & MII_CR_LOOPBACK) {
609 nc->info->receive(nc, buf, size);
610 } else {
611 qemu_send_packet(nc, buf, size);
612 }
613 }
614
615 static void
616 xmit_seg(E1000State *s)
617 {
618 uint16_t len, *sp;
619 unsigned int frames = s->tx.tso_frames, css, sofar, n;
620 struct e1000_tx *tp = &s->tx;
621
622 if (tp->tse && tp->cptse) {
623 css = tp->ipcss;
624 DBGOUT(TXSUM, "frames %d size %d ipcss %d\n",
625 frames, tp->size, css);
626 if (tp->ip) { /* IPv4 */
627 stw_be_p(tp->data+css+2, tp->size - css);
628 stw_be_p(tp->data+css+4,
629 be16_to_cpup((uint16_t *)(tp->data+css+4))+frames);
630 } else { /* IPv6 */
631 stw_be_p(tp->data+css+4, tp->size - css);
632 }
633 css = tp->tucss;
634 len = tp->size - css;
635 DBGOUT(TXSUM, "tcp %d tucss %d len %d\n", tp->tcp, css, len);
636 if (tp->tcp) {
637 sofar = frames * tp->mss;
638 stl_be_p(tp->data+css+4, ldl_be_p(tp->data+css+4)+sofar); /* seq */
639 if (tp->paylen - sofar > tp->mss)
640 tp->data[css + 13] &= ~9; /* PSH, FIN */
641 } else /* UDP */
642 stw_be_p(tp->data+css+4, len);
643 if (tp->sum_needed & E1000_TXD_POPTS_TXSM) {
644 unsigned int phsum;
645 // add pseudo-header length before checksum calculation
646 sp = (uint16_t *)(tp->data + tp->tucso);
647 phsum = be16_to_cpup(sp) + len;
648 phsum = (phsum >> 16) + (phsum & 0xffff);
649 stw_be_p(sp, phsum);
650 }
651 tp->tso_frames++;
652 }
653
654 if (tp->sum_needed & E1000_TXD_POPTS_TXSM)
655 putsum(tp->data, tp->size, tp->tucso, tp->tucss, tp->tucse);
656 if (tp->sum_needed & E1000_TXD_POPTS_IXSM)
657 putsum(tp->data, tp->size, tp->ipcso, tp->ipcss, tp->ipcse);
658 if (tp->vlan_needed) {
659 memmove(tp->vlan, tp->data, 4);
660 memmove(tp->data, tp->data + 4, 8);
661 memcpy(tp->data + 8, tp->vlan_header, 4);
662 e1000_send_packet(s, tp->vlan, tp->size + 4);
663 } else {
664 e1000_send_packet(s, tp->data, tp->size);
665 }
666
667 s->mac_reg[TPT]++;
668 s->mac_reg[GPTC]++;
669 n = s->mac_reg[TOTL];
670 if ((s->mac_reg[TOTL] += s->tx.size) < n)
671 s->mac_reg[TOTH]++;
672 }
673
674 static void
675 process_tx_desc(E1000State *s, struct e1000_tx_desc *dp)
676 {
677 PCIDevice *d = PCI_DEVICE(s);
678 uint32_t txd_lower = le32_to_cpu(dp->lower.data);
679 uint32_t dtype = txd_lower & (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D);
680 unsigned int split_size = txd_lower & 0xffff, bytes, sz, op;
681 unsigned int msh = 0xfffff;
682 uint64_t addr;
683 struct e1000_context_desc *xp = (struct e1000_context_desc *)dp;
684 struct e1000_tx *tp = &s->tx;
685
686 s->mit_ide |= (txd_lower & E1000_TXD_CMD_IDE);
687 if (dtype == E1000_TXD_CMD_DEXT) { /* context descriptor */
688 op = le32_to_cpu(xp->cmd_and_length);
689 tp->ipcss = xp->lower_setup.ip_fields.ipcss;
690 tp->ipcso = xp->lower_setup.ip_fields.ipcso;
691 tp->ipcse = le16_to_cpu(xp->lower_setup.ip_fields.ipcse);
692 tp->tucss = xp->upper_setup.tcp_fields.tucss;
693 tp->tucso = xp->upper_setup.tcp_fields.tucso;
694 tp->tucse = le16_to_cpu(xp->upper_setup.tcp_fields.tucse);
695 tp->paylen = op & 0xfffff;
696 tp->hdr_len = xp->tcp_seg_setup.fields.hdr_len;
697 tp->mss = le16_to_cpu(xp->tcp_seg_setup.fields.mss);
698 tp->ip = (op & E1000_TXD_CMD_IP) ? 1 : 0;
699 tp->tcp = (op & E1000_TXD_CMD_TCP) ? 1 : 0;
700 tp->tse = (op & E1000_TXD_CMD_TSE) ? 1 : 0;
701 tp->tso_frames = 0;
702 if (tp->tucso == 0) { /* this is probably wrong */
703 DBGOUT(TXSUM, "TCP/UDP: cso 0!\n");
704 tp->tucso = tp->tucss + (tp->tcp ? 16 : 6);
705 }
706 return;
707 } else if (dtype == (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D)) {
708 // data descriptor
709 if (tp->size == 0) {
710 tp->sum_needed = le32_to_cpu(dp->upper.data) >> 8;
711 }
712 tp->cptse = ( txd_lower & E1000_TXD_CMD_TSE ) ? 1 : 0;
713 } else {
714 // legacy descriptor
715 tp->cptse = 0;
716 }
717
718 if (vlan_enabled(s) && is_vlan_txd(txd_lower) &&
719 (tp->cptse || txd_lower & E1000_TXD_CMD_EOP)) {
720 tp->vlan_needed = 1;
721 stw_be_p(tp->vlan_header,
722 le16_to_cpu(s->mac_reg[VET]));
723 stw_be_p(tp->vlan_header + 2,
724 le16_to_cpu(dp->upper.fields.special));
725 }
726
727 addr = le64_to_cpu(dp->buffer_addr);
728 if (tp->tse && tp->cptse) {
729 msh = tp->hdr_len + tp->mss;
730 do {
731 bytes = split_size;
732 if (tp->size + bytes > msh)
733 bytes = msh - tp->size;
734
735 bytes = MIN(sizeof(tp->data) - tp->size, bytes);
736 pci_dma_read(d, addr, tp->data + tp->size, bytes);
737 sz = tp->size + bytes;
738 if (sz >= tp->hdr_len && tp->size < tp->hdr_len) {
739 memmove(tp->header, tp->data, tp->hdr_len);
740 }
741 tp->size = sz;
742 addr += bytes;
743 if (sz == msh) {
744 xmit_seg(s);
745 memmove(tp->data, tp->header, tp->hdr_len);
746 tp->size = tp->hdr_len;
747 }
748 split_size -= bytes;
749 } while (bytes && split_size);
750 } else if (!tp->tse && tp->cptse) {
751 // context descriptor TSE is not set, while data descriptor TSE is set
752 DBGOUT(TXERR, "TCP segmentation error\n");
753 } else {
754 split_size = MIN(sizeof(tp->data) - tp->size, split_size);
755 pci_dma_read(d, addr, tp->data + tp->size, split_size);
756 tp->size += split_size;
757 }
758
759 if (!(txd_lower & E1000_TXD_CMD_EOP))
760 return;
761 if (!(tp->tse && tp->cptse && tp->size < tp->hdr_len)) {
762 xmit_seg(s);
763 }
764 tp->tso_frames = 0;
765 tp->sum_needed = 0;
766 tp->vlan_needed = 0;
767 tp->size = 0;
768 tp->cptse = 0;
769 }
770
771 static uint32_t
772 txdesc_writeback(E1000State *s, dma_addr_t base, struct e1000_tx_desc *dp)
773 {
774 PCIDevice *d = PCI_DEVICE(s);
775 uint32_t txd_upper, txd_lower = le32_to_cpu(dp->lower.data);
776
777 if (!(txd_lower & (E1000_TXD_CMD_RS|E1000_TXD_CMD_RPS)))
778 return 0;
779 txd_upper = (le32_to_cpu(dp->upper.data) | E1000_TXD_STAT_DD) &
780 ~(E1000_TXD_STAT_EC | E1000_TXD_STAT_LC | E1000_TXD_STAT_TU);
781 dp->upper.data = cpu_to_le32(txd_upper);
782 pci_dma_write(d, base + ((char *)&dp->upper - (char *)dp),
783 &dp->upper, sizeof(dp->upper));
784 return E1000_ICR_TXDW;
785 }
786
787 static uint64_t tx_desc_base(E1000State *s)
788 {
789 uint64_t bah = s->mac_reg[TDBAH];
790 uint64_t bal = s->mac_reg[TDBAL] & ~0xf;
791
792 return (bah << 32) + bal;
793 }
794
795 static void
796 start_xmit(E1000State *s)
797 {
798 PCIDevice *d = PCI_DEVICE(s);
799 dma_addr_t base;
800 struct e1000_tx_desc desc;
801 uint32_t tdh_start = s->mac_reg[TDH], cause = E1000_ICS_TXQE;
802
803 if (!(s->mac_reg[TCTL] & E1000_TCTL_EN)) {
804 DBGOUT(TX, "tx disabled\n");
805 return;
806 }
807
808 while (s->mac_reg[TDH] != s->mac_reg[TDT]) {
809 base = tx_desc_base(s) +
810 sizeof(struct e1000_tx_desc) * s->mac_reg[TDH];
811 pci_dma_read(d, base, &desc, sizeof(desc));
812
813 DBGOUT(TX, "index %d: %p : %x %x\n", s->mac_reg[TDH],
814 (void *)(intptr_t)desc.buffer_addr, desc.lower.data,
815 desc.upper.data);
816
817 process_tx_desc(s, &desc);
818 cause |= txdesc_writeback(s, base, &desc);
819
820 if (++s->mac_reg[TDH] * sizeof(desc) >= s->mac_reg[TDLEN])
821 s->mac_reg[TDH] = 0;
822 /*
823 * the following could happen only if guest sw assigns
824 * bogus values to TDT/TDLEN.
825 * there's nothing too intelligent we could do about this.
826 */
827 if (s->mac_reg[TDH] == tdh_start) {
828 DBGOUT(TXERR, "TDH wraparound @%x, TDT %x, TDLEN %x\n",
829 tdh_start, s->mac_reg[TDT], s->mac_reg[TDLEN]);
830 break;
831 }
832 }
833 set_ics(s, 0, cause);
834 }
835
836 static int
837 receive_filter(E1000State *s, const uint8_t *buf, int size)
838 {
839 static const uint8_t bcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
840 static const int mta_shift[] = {4, 3, 2, 0};
841 uint32_t f, rctl = s->mac_reg[RCTL], ra[2], *rp;
842
843 if (is_vlan_packet(s, buf) && vlan_rx_filter_enabled(s)) {
844 uint16_t vid = be16_to_cpup((uint16_t *)(buf + 14));
845 uint32_t vfta = le32_to_cpup((uint32_t *)(s->mac_reg + VFTA) +
846 ((vid >> 5) & 0x7f));
847 if ((vfta & (1 << (vid & 0x1f))) == 0)
848 return 0;
849 }
850
851 if (rctl & E1000_RCTL_UPE) // promiscuous
852 return 1;
853
854 if ((buf[0] & 1) && (rctl & E1000_RCTL_MPE)) // promiscuous mcast
855 return 1;
856
857 if ((rctl & E1000_RCTL_BAM) && !memcmp(buf, bcast, sizeof bcast))
858 return 1;
859
860 for (rp = s->mac_reg + RA; rp < s->mac_reg + RA + 32; rp += 2) {
861 if (!(rp[1] & E1000_RAH_AV))
862 continue;
863 ra[0] = cpu_to_le32(rp[0]);
864 ra[1] = cpu_to_le32(rp[1]);
865 if (!memcmp(buf, (uint8_t *)ra, 6)) {
866 DBGOUT(RXFILTER,
867 "unicast match[%d]: %02x:%02x:%02x:%02x:%02x:%02x\n",
868 (int)(rp - s->mac_reg - RA)/2,
869 buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
870 return 1;
871 }
872 }
873 DBGOUT(RXFILTER, "unicast mismatch: %02x:%02x:%02x:%02x:%02x:%02x\n",
874 buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
875
876 f = mta_shift[(rctl >> E1000_RCTL_MO_SHIFT) & 3];
877 f = (((buf[5] << 8) | buf[4]) >> f) & 0xfff;
878 if (s->mac_reg[MTA + (f >> 5)] & (1 << (f & 0x1f)))
879 return 1;
880 DBGOUT(RXFILTER,
881 "dropping, inexact filter mismatch: %02x:%02x:%02x:%02x:%02x:%02x MO %d MTA[%d] %x\n",
882 buf[0], buf[1], buf[2], buf[3], buf[4], buf[5],
883 (rctl >> E1000_RCTL_MO_SHIFT) & 3, f >> 5,
884 s->mac_reg[MTA + (f >> 5)]);
885
886 return 0;
887 }
888
889 static void
890 e1000_set_link_status(NetClientState *nc)
891 {
892 E1000State *s = qemu_get_nic_opaque(nc);
893 uint32_t old_status = s->mac_reg[STATUS];
894
895 if (nc->link_down) {
896 e1000_link_down(s);
897 } else {
898 if (have_autoneg(s) &&
899 !(s->phy_reg[PHY_STATUS] & MII_SR_AUTONEG_COMPLETE)) {
900 /* emulate auto-negotiation if supported */
901 timer_mod(s->autoneg_timer,
902 qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500);
903 } else {
904 e1000_link_up(s);
905 }
906 }
907
908 if (s->mac_reg[STATUS] != old_status)
909 set_ics(s, 0, E1000_ICR_LSC);
910 }
911
912 static bool e1000_has_rxbufs(E1000State *s, size_t total_size)
913 {
914 int bufs;
915 /* Fast-path short packets */
916 if (total_size <= s->rxbuf_size) {
917 return s->mac_reg[RDH] != s->mac_reg[RDT];
918 }
919 if (s->mac_reg[RDH] < s->mac_reg[RDT]) {
920 bufs = s->mac_reg[RDT] - s->mac_reg[RDH];
921 } else if (s->mac_reg[RDH] > s->mac_reg[RDT]) {
922 bufs = s->mac_reg[RDLEN] / sizeof(struct e1000_rx_desc) +
923 s->mac_reg[RDT] - s->mac_reg[RDH];
924 } else {
925 return false;
926 }
927 return total_size <= bufs * s->rxbuf_size;
928 }
929
930 static int
931 e1000_can_receive(NetClientState *nc)
932 {
933 E1000State *s = qemu_get_nic_opaque(nc);
934
935 return (s->mac_reg[STATUS] & E1000_STATUS_LU) &&
936 (s->mac_reg[RCTL] & E1000_RCTL_EN) &&
937 (s->parent_obj.config[PCI_COMMAND] & PCI_COMMAND_MASTER) &&
938 e1000_has_rxbufs(s, 1);
939 }
940
941 static uint64_t rx_desc_base(E1000State *s)
942 {
943 uint64_t bah = s->mac_reg[RDBAH];
944 uint64_t bal = s->mac_reg[RDBAL] & ~0xf;
945
946 return (bah << 32) + bal;
947 }
948
949 static ssize_t
950 e1000_receive_iov(NetClientState *nc, const struct iovec *iov, int iovcnt)
951 {
952 E1000State *s = qemu_get_nic_opaque(nc);
953 PCIDevice *d = PCI_DEVICE(s);
954 struct e1000_rx_desc desc;
955 dma_addr_t base;
956 unsigned int n, rdt;
957 uint32_t rdh_start;
958 uint16_t vlan_special = 0;
959 uint8_t vlan_status = 0;
960 uint8_t min_buf[MIN_BUF_SIZE];
961 struct iovec min_iov;
962 uint8_t *filter_buf = iov->iov_base;
963 size_t size = iov_size(iov, iovcnt);
964 size_t iov_ofs = 0;
965 size_t desc_offset;
966 size_t desc_size;
967 size_t total_size;
968
969 if (!(s->mac_reg[STATUS] & E1000_STATUS_LU)) {
970 return -1;
971 }
972
973 if (!(s->mac_reg[RCTL] & E1000_RCTL_EN)) {
974 return -1;
975 }
976
977 /* Pad to minimum Ethernet frame length */
978 if (size < sizeof(min_buf)) {
979 iov_to_buf(iov, iovcnt, 0, min_buf, size);
980 memset(&min_buf[size], 0, sizeof(min_buf) - size);
981 min_iov.iov_base = filter_buf = min_buf;
982 min_iov.iov_len = size = sizeof(min_buf);
983 iovcnt = 1;
984 iov = &min_iov;
985 } else if (iov->iov_len < MAXIMUM_ETHERNET_HDR_LEN) {
986 /* This is very unlikely, but may happen. */
987 iov_to_buf(iov, iovcnt, 0, min_buf, MAXIMUM_ETHERNET_HDR_LEN);
988 filter_buf = min_buf;
989 }
990
991 /* Discard oversized packets if !LPE and !SBP. */
992 if ((size > MAXIMUM_ETHERNET_LPE_SIZE ||
993 (size > MAXIMUM_ETHERNET_VLAN_SIZE
994 && !(s->mac_reg[RCTL] & E1000_RCTL_LPE)))
995 && !(s->mac_reg[RCTL] & E1000_RCTL_SBP)) {
996 return size;
997 }
998
999 if (!receive_filter(s, filter_buf, size)) {
1000 return size;
1001 }
1002
1003 if (vlan_enabled(s) && is_vlan_packet(s, filter_buf)) {
1004 vlan_special = cpu_to_le16(be16_to_cpup((uint16_t *)(filter_buf
1005 + 14)));
1006 iov_ofs = 4;
1007 if (filter_buf == iov->iov_base) {
1008 memmove(filter_buf + 4, filter_buf, 12);
1009 } else {
1010 iov_from_buf(iov, iovcnt, 4, filter_buf, 12);
1011 while (iov->iov_len <= iov_ofs) {
1012 iov_ofs -= iov->iov_len;
1013 iov++;
1014 }
1015 }
1016 vlan_status = E1000_RXD_STAT_VP;
1017 size -= 4;
1018 }
1019
1020 rdh_start = s->mac_reg[RDH];
1021 desc_offset = 0;
1022 total_size = size + fcs_len(s);
1023 if (!e1000_has_rxbufs(s, total_size)) {
1024 set_ics(s, 0, E1000_ICS_RXO);
1025 return -1;
1026 }
1027 do {
1028 desc_size = total_size - desc_offset;
1029 if (desc_size > s->rxbuf_size) {
1030 desc_size = s->rxbuf_size;
1031 }
1032 base = rx_desc_base(s) + sizeof(desc) * s->mac_reg[RDH];
1033 pci_dma_read(d, base, &desc, sizeof(desc));
1034 desc.special = vlan_special;
1035 desc.status |= (vlan_status | E1000_RXD_STAT_DD);
1036 if (desc.buffer_addr) {
1037 if (desc_offset < size) {
1038 size_t iov_copy;
1039 hwaddr ba = le64_to_cpu(desc.buffer_addr);
1040 size_t copy_size = size - desc_offset;
1041 if (copy_size > s->rxbuf_size) {
1042 copy_size = s->rxbuf_size;
1043 }
1044 do {
1045 iov_copy = MIN(copy_size, iov->iov_len - iov_ofs);
1046 pci_dma_write(d, ba, iov->iov_base + iov_ofs, iov_copy);
1047 copy_size -= iov_copy;
1048 ba += iov_copy;
1049 iov_ofs += iov_copy;
1050 if (iov_ofs == iov->iov_len) {
1051 iov++;
1052 iov_ofs = 0;
1053 }
1054 } while (copy_size);
1055 }
1056 desc_offset += desc_size;
1057 desc.length = cpu_to_le16(desc_size);
1058 if (desc_offset >= total_size) {
1059 desc.status |= E1000_RXD_STAT_EOP | E1000_RXD_STAT_IXSM;
1060 } else {
1061 /* Guest zeroing out status is not a hardware requirement.
1062 Clear EOP in case guest didn't do it. */
1063 desc.status &= ~E1000_RXD_STAT_EOP;
1064 }
1065 } else { // as per intel docs; skip descriptors with null buf addr
1066 DBGOUT(RX, "Null RX descriptor!!\n");
1067 }
1068 pci_dma_write(d, base, &desc, sizeof(desc));
1069
1070 if (++s->mac_reg[RDH] * sizeof(desc) >= s->mac_reg[RDLEN])
1071 s->mac_reg[RDH] = 0;
1072 /* see comment in start_xmit; same here */
1073 if (s->mac_reg[RDH] == rdh_start) {
1074 DBGOUT(RXERR, "RDH wraparound @%x, RDT %x, RDLEN %x\n",
1075 rdh_start, s->mac_reg[RDT], s->mac_reg[RDLEN]);
1076 set_ics(s, 0, E1000_ICS_RXO);
1077 return -1;
1078 }
1079 } while (desc_offset < total_size);
1080
1081 s->mac_reg[GPRC]++;
1082 s->mac_reg[TPR]++;
1083 /* TOR - Total Octets Received:
1084 * This register includes bytes received in a packet from the <Destination
1085 * Address> field through the <CRC> field, inclusively.
1086 */
1087 n = s->mac_reg[TORL] + size + /* Always include FCS length. */ 4;
1088 if (n < s->mac_reg[TORL])
1089 s->mac_reg[TORH]++;
1090 s->mac_reg[TORL] = n;
1091
1092 n = E1000_ICS_RXT0;
1093 if ((rdt = s->mac_reg[RDT]) < s->mac_reg[RDH])
1094 rdt += s->mac_reg[RDLEN] / sizeof(desc);
1095 if (((rdt - s->mac_reg[RDH]) * sizeof(desc)) <= s->mac_reg[RDLEN] >>
1096 s->rxbuf_min_shift)
1097 n |= E1000_ICS_RXDMT0;
1098
1099 set_ics(s, 0, n);
1100
1101 return size;
1102 }
1103
1104 static ssize_t
1105 e1000_receive(NetClientState *nc, const uint8_t *buf, size_t size)
1106 {
1107 const struct iovec iov = {
1108 .iov_base = (uint8_t *)buf,
1109 .iov_len = size
1110 };
1111
1112 return e1000_receive_iov(nc, &iov, 1);
1113 }
1114
1115 static uint32_t
1116 mac_readreg(E1000State *s, int index)
1117 {
1118 return s->mac_reg[index];
1119 }
1120
1121 static uint32_t
1122 mac_icr_read(E1000State *s, int index)
1123 {
1124 uint32_t ret = s->mac_reg[ICR];
1125
1126 DBGOUT(INTERRUPT, "ICR read: %x\n", ret);
1127 set_interrupt_cause(s, 0, 0);
1128 return ret;
1129 }
1130
1131 static uint32_t
1132 mac_read_clr4(E1000State *s, int index)
1133 {
1134 uint32_t ret = s->mac_reg[index];
1135
1136 s->mac_reg[index] = 0;
1137 return ret;
1138 }
1139
1140 static uint32_t
1141 mac_read_clr8(E1000State *s, int index)
1142 {
1143 uint32_t ret = s->mac_reg[index];
1144
1145 s->mac_reg[index] = 0;
1146 s->mac_reg[index-1] = 0;
1147 return ret;
1148 }
1149
1150 static void
1151 mac_writereg(E1000State *s, int index, uint32_t val)
1152 {
1153 uint32_t macaddr[2];
1154
1155 s->mac_reg[index] = val;
1156
1157 if (index == RA + 1) {
1158 macaddr[0] = cpu_to_le32(s->mac_reg[RA]);
1159 macaddr[1] = cpu_to_le32(s->mac_reg[RA + 1]);
1160 qemu_format_nic_info_str(qemu_get_queue(s->nic), (uint8_t *)macaddr);
1161 }
1162 }
1163
1164 static void
1165 set_rdt(E1000State *s, int index, uint32_t val)
1166 {
1167 s->mac_reg[index] = val & 0xffff;
1168 if (e1000_has_rxbufs(s, 1)) {
1169 qemu_flush_queued_packets(qemu_get_queue(s->nic));
1170 }
1171 }
1172
1173 static void
1174 set_16bit(E1000State *s, int index, uint32_t val)
1175 {
1176 s->mac_reg[index] = val & 0xffff;
1177 }
1178
1179 static void
1180 set_dlen(E1000State *s, int index, uint32_t val)
1181 {
1182 s->mac_reg[index] = val & 0xfff80;
1183 }
1184
1185 static void
1186 set_tctl(E1000State *s, int index, uint32_t val)
1187 {
1188 s->mac_reg[index] = val;
1189 s->mac_reg[TDT] &= 0xffff;
1190 start_xmit(s);
1191 }
1192
1193 static void
1194 set_icr(E1000State *s, int index, uint32_t val)
1195 {
1196 DBGOUT(INTERRUPT, "set_icr %x\n", val);
1197 set_interrupt_cause(s, 0, s->mac_reg[ICR] & ~val);
1198 }
1199
1200 static void
1201 set_imc(E1000State *s, int index, uint32_t val)
1202 {
1203 s->mac_reg[IMS] &= ~val;
1204 set_ics(s, 0, 0);
1205 }
1206
1207 static void
1208 set_ims(E1000State *s, int index, uint32_t val)
1209 {
1210 s->mac_reg[IMS] |= val;
1211 set_ics(s, 0, 0);
1212 }
1213
1214 #define getreg(x) [x] = mac_readreg
1215 static uint32_t (*macreg_readops[])(E1000State *, int) = {
1216 getreg(PBA), getreg(RCTL), getreg(TDH), getreg(TXDCTL),
1217 getreg(WUFC), getreg(TDT), getreg(CTRL), getreg(LEDCTL),
1218 getreg(MANC), getreg(MDIC), getreg(SWSM), getreg(STATUS),
1219 getreg(TORL), getreg(TOTL), getreg(IMS), getreg(TCTL),
1220 getreg(RDH), getreg(RDT), getreg(VET), getreg(ICS),
1221 getreg(TDBAL), getreg(TDBAH), getreg(RDBAH), getreg(RDBAL),
1222 getreg(TDLEN), getreg(RDLEN), getreg(RDTR), getreg(RADV),
1223 getreg(TADV), getreg(ITR),
1224
1225 [TOTH] = mac_read_clr8, [TORH] = mac_read_clr8,
1226 [GPRC] = mac_read_clr4, [GPTC] = mac_read_clr4,
1227 [TPT] = mac_read_clr4, [TPR] = mac_read_clr4,
1228 [ICR] = mac_icr_read, [EECD] = get_eecd,
1229 [EERD] = flash_eerd_read,
1230
1231 [CRCERRS ... MPC] = &mac_readreg,
1232 [RA ... RA+31] = &mac_readreg,
1233 [MTA ... MTA+127] = &mac_readreg,
1234 [VFTA ... VFTA+127] = &mac_readreg,
1235 };
1236 enum { NREADOPS = ARRAY_SIZE(macreg_readops) };
1237
1238 #define putreg(x) [x] = mac_writereg
1239 static void (*macreg_writeops[])(E1000State *, int, uint32_t) = {
1240 putreg(PBA), putreg(EERD), putreg(SWSM), putreg(WUFC),
1241 putreg(TDBAL), putreg(TDBAH), putreg(TXDCTL), putreg(RDBAH),
1242 putreg(RDBAL), putreg(LEDCTL), putreg(VET),
1243
1244 [TDLEN] = set_dlen, [RDLEN] = set_dlen, [TCTL] = set_tctl,
1245 [TDT] = set_tctl, [MDIC] = set_mdic, [ICS] = set_ics,
1246 [TDH] = set_16bit, [RDH] = set_16bit, [RDT] = set_rdt,
1247 [IMC] = set_imc, [IMS] = set_ims, [ICR] = set_icr,
1248 [EECD] = set_eecd, [RCTL] = set_rx_control, [CTRL] = set_ctrl,
1249 [RDTR] = set_16bit, [RADV] = set_16bit, [TADV] = set_16bit,
1250 [ITR] = set_16bit,
1251
1252 [RA ... RA+31] = &mac_writereg,
1253 [MTA ... MTA+127] = &mac_writereg,
1254 [VFTA ... VFTA+127] = &mac_writereg,
1255 };
1256
1257 enum { NWRITEOPS = ARRAY_SIZE(macreg_writeops) };
1258
1259 static void
1260 e1000_mmio_write(void *opaque, hwaddr addr, uint64_t val,
1261 unsigned size)
1262 {
1263 E1000State *s = opaque;
1264 unsigned int index = (addr & 0x1ffff) >> 2;
1265
1266 if (index < NWRITEOPS && macreg_writeops[index]) {
1267 macreg_writeops[index](s, index, val);
1268 } else if (index < NREADOPS && macreg_readops[index]) {
1269 DBGOUT(MMIO, "e1000_mmio_writel RO %x: 0x%04"PRIx64"\n", index<<2, val);
1270 } else {
1271 DBGOUT(UNKNOWN, "MMIO unknown write addr=0x%08x,val=0x%08"PRIx64"\n",
1272 index<<2, val);
1273 }
1274 }
1275
1276 static uint64_t
1277 e1000_mmio_read(void *opaque, hwaddr addr, unsigned size)
1278 {
1279 E1000State *s = opaque;
1280 unsigned int index = (addr & 0x1ffff) >> 2;
1281
1282 if (index < NREADOPS && macreg_readops[index])
1283 {
1284 return macreg_readops[index](s, index);
1285 }
1286 DBGOUT(UNKNOWN, "MMIO unknown read addr=0x%08x\n", index<<2);
1287 return 0;
1288 }
1289
1290 static const MemoryRegionOps e1000_mmio_ops = {
1291 .read = e1000_mmio_read,
1292 .write = e1000_mmio_write,
1293 .endianness = DEVICE_LITTLE_ENDIAN,
1294 .impl = {
1295 .min_access_size = 4,
1296 .max_access_size = 4,
1297 },
1298 };
1299
1300 static uint64_t e1000_io_read(void *opaque, hwaddr addr,
1301 unsigned size)
1302 {
1303 E1000State *s = opaque;
1304
1305 (void)s;
1306 return 0;
1307 }
1308
1309 static void e1000_io_write(void *opaque, hwaddr addr,
1310 uint64_t val, unsigned size)
1311 {
1312 E1000State *s = opaque;
1313
1314 (void)s;
1315 }
1316
1317 static const MemoryRegionOps e1000_io_ops = {
1318 .read = e1000_io_read,
1319 .write = e1000_io_write,
1320 .endianness = DEVICE_LITTLE_ENDIAN,
1321 };
1322
1323 static bool is_version_1(void *opaque, int version_id)
1324 {
1325 return version_id == 1;
1326 }
1327
1328 static void e1000_pre_save(void *opaque)
1329 {
1330 E1000State *s = opaque;
1331 NetClientState *nc = qemu_get_queue(s->nic);
1332
1333 /* If the mitigation timer is active, emulate a timeout now. */
1334 if (s->mit_timer_on) {
1335 e1000_mit_timer(s);
1336 }
1337
1338 /*
1339 * If link is down and auto-negotiation is supported and ongoing,
1340 * complete auto-negotiation immediately. This allows us to look
1341 * at MII_SR_AUTONEG_COMPLETE to infer link status on load.
1342 */
1343 if (nc->link_down && have_autoneg(s)) {
1344 s->phy_reg[PHY_STATUS] |= MII_SR_AUTONEG_COMPLETE;
1345 }
1346 }
1347
1348 static int e1000_post_load(void *opaque, int version_id)
1349 {
1350 E1000State *s = opaque;
1351 NetClientState *nc = qemu_get_queue(s->nic);
1352
1353 if (!(s->compat_flags & E1000_FLAG_MIT)) {
1354 s->mac_reg[ITR] = s->mac_reg[RDTR] = s->mac_reg[RADV] =
1355 s->mac_reg[TADV] = 0;
1356 s->mit_irq_level = false;
1357 }
1358 s->mit_ide = 0;
1359 s->mit_timer_on = false;
1360
1361 /* nc.link_down can't be migrated, so infer link_down according
1362 * to link status bit in mac_reg[STATUS].
1363 * Alternatively, restart link negotiation if it was in progress. */
1364 nc->link_down = (s->mac_reg[STATUS] & E1000_STATUS_LU) == 0;
1365
1366 if (have_autoneg(s) &&
1367 !(s->phy_reg[PHY_STATUS] & MII_SR_AUTONEG_COMPLETE)) {
1368 nc->link_down = false;
1369 timer_mod(s->autoneg_timer,
1370 qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 500);
1371 }
1372
1373 return 0;
1374 }
1375
1376 static bool e1000_mit_state_needed(void *opaque)
1377 {
1378 E1000State *s = opaque;
1379
1380 return s->compat_flags & E1000_FLAG_MIT;
1381 }
1382
1383 static const VMStateDescription vmstate_e1000_mit_state = {
1384 .name = "e1000/mit_state",
1385 .version_id = 1,
1386 .minimum_version_id = 1,
1387 .needed = e1000_mit_state_needed,
1388 .fields = (VMStateField[]) {
1389 VMSTATE_UINT32(mac_reg[RDTR], E1000State),
1390 VMSTATE_UINT32(mac_reg[RADV], E1000State),
1391 VMSTATE_UINT32(mac_reg[TADV], E1000State),
1392 VMSTATE_UINT32(mac_reg[ITR], E1000State),
1393 VMSTATE_BOOL(mit_irq_level, E1000State),
1394 VMSTATE_END_OF_LIST()
1395 }
1396 };
1397
1398 static const VMStateDescription vmstate_e1000 = {
1399 .name = "e1000",
1400 .version_id = 2,
1401 .minimum_version_id = 1,
1402 .pre_save = e1000_pre_save,
1403 .post_load = e1000_post_load,
1404 .fields = (VMStateField[]) {
1405 VMSTATE_PCI_DEVICE(parent_obj, E1000State),
1406 VMSTATE_UNUSED_TEST(is_version_1, 4), /* was instance id */
1407 VMSTATE_UNUSED(4), /* Was mmio_base. */
1408 VMSTATE_UINT32(rxbuf_size, E1000State),
1409 VMSTATE_UINT32(rxbuf_min_shift, E1000State),
1410 VMSTATE_UINT32(eecd_state.val_in, E1000State),
1411 VMSTATE_UINT16(eecd_state.bitnum_in, E1000State),
1412 VMSTATE_UINT16(eecd_state.bitnum_out, E1000State),
1413 VMSTATE_UINT16(eecd_state.reading, E1000State),
1414 VMSTATE_UINT32(eecd_state.old_eecd, E1000State),
1415 VMSTATE_UINT8(tx.ipcss, E1000State),
1416 VMSTATE_UINT8(tx.ipcso, E1000State),
1417 VMSTATE_UINT16(tx.ipcse, E1000State),
1418 VMSTATE_UINT8(tx.tucss, E1000State),
1419 VMSTATE_UINT8(tx.tucso, E1000State),
1420 VMSTATE_UINT16(tx.tucse, E1000State),
1421 VMSTATE_UINT32(tx.paylen, E1000State),
1422 VMSTATE_UINT8(tx.hdr_len, E1000State),
1423 VMSTATE_UINT16(tx.mss, E1000State),
1424 VMSTATE_UINT16(tx.size, E1000State),
1425 VMSTATE_UINT16(tx.tso_frames, E1000State),
1426 VMSTATE_UINT8(tx.sum_needed, E1000State),
1427 VMSTATE_INT8(tx.ip, E1000State),
1428 VMSTATE_INT8(tx.tcp, E1000State),
1429 VMSTATE_BUFFER(tx.header, E1000State),
1430 VMSTATE_BUFFER(tx.data, E1000State),
1431 VMSTATE_UINT16_ARRAY(eeprom_data, E1000State, 64),
1432 VMSTATE_UINT16_ARRAY(phy_reg, E1000State, 0x20),
1433 VMSTATE_UINT32(mac_reg[CTRL], E1000State),
1434 VMSTATE_UINT32(mac_reg[EECD], E1000State),
1435 VMSTATE_UINT32(mac_reg[EERD], E1000State),
1436 VMSTATE_UINT32(mac_reg[GPRC], E1000State),
1437 VMSTATE_UINT32(mac_reg[GPTC], E1000State),
1438 VMSTATE_UINT32(mac_reg[ICR], E1000State),
1439 VMSTATE_UINT32(mac_reg[ICS], E1000State),
1440 VMSTATE_UINT32(mac_reg[IMC], E1000State),
1441 VMSTATE_UINT32(mac_reg[IMS], E1000State),
1442 VMSTATE_UINT32(mac_reg[LEDCTL], E1000State),
1443 VMSTATE_UINT32(mac_reg[MANC], E1000State),
1444 VMSTATE_UINT32(mac_reg[MDIC], E1000State),
1445 VMSTATE_UINT32(mac_reg[MPC], E1000State),
1446 VMSTATE_UINT32(mac_reg[PBA], E1000State),
1447 VMSTATE_UINT32(mac_reg[RCTL], E1000State),
1448 VMSTATE_UINT32(mac_reg[RDBAH], E1000State),
1449 VMSTATE_UINT32(mac_reg[RDBAL], E1000State),
1450 VMSTATE_UINT32(mac_reg[RDH], E1000State),
1451 VMSTATE_UINT32(mac_reg[RDLEN], E1000State),
1452 VMSTATE_UINT32(mac_reg[RDT], E1000State),
1453 VMSTATE_UINT32(mac_reg[STATUS], E1000State),
1454 VMSTATE_UINT32(mac_reg[SWSM], E1000State),
1455 VMSTATE_UINT32(mac_reg[TCTL], E1000State),
1456 VMSTATE_UINT32(mac_reg[TDBAH], E1000State),
1457 VMSTATE_UINT32(mac_reg[TDBAL], E1000State),
1458 VMSTATE_UINT32(mac_reg[TDH], E1000State),
1459 VMSTATE_UINT32(mac_reg[TDLEN], E1000State),
1460 VMSTATE_UINT32(mac_reg[TDT], E1000State),
1461 VMSTATE_UINT32(mac_reg[TORH], E1000State),
1462 VMSTATE_UINT32(mac_reg[TORL], E1000State),
1463 VMSTATE_UINT32(mac_reg[TOTH], E1000State),
1464 VMSTATE_UINT32(mac_reg[TOTL], E1000State),
1465 VMSTATE_UINT32(mac_reg[TPR], E1000State),
1466 VMSTATE_UINT32(mac_reg[TPT], E1000State),
1467 VMSTATE_UINT32(mac_reg[TXDCTL], E1000State),
1468 VMSTATE_UINT32(mac_reg[WUFC], E1000State),
1469 VMSTATE_UINT32(mac_reg[VET], E1000State),
1470 VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, RA, 32),
1471 VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, MTA, 128),
1472 VMSTATE_UINT32_SUB_ARRAY(mac_reg, E1000State, VFTA, 128),
1473 VMSTATE_END_OF_LIST()
1474 },
1475 .subsections = (const VMStateDescription*[]) {
1476 &vmstate_e1000_mit_state,
1477 NULL
1478 }
1479 };
1480
1481 /*
1482 * EEPROM contents documented in Tables 5-2 and 5-3, pp. 98-102.
1483 * Note: A valid DevId will be inserted during pci_e1000_init().
1484 */
1485 static const uint16_t e1000_eeprom_template[64] = {
1486 0x0000, 0x0000, 0x0000, 0x0000, 0xffff, 0x0000, 0x0000, 0x0000,
1487 0x3000, 0x1000, 0x6403, 0 /*DevId*/, 0x8086, 0 /*DevId*/, 0x8086, 0x3040,
1488 0x0008, 0x2000, 0x7e14, 0x0048, 0x1000, 0x00d8, 0x0000, 0x2700,
1489 0x6cc9, 0x3150, 0x0722, 0x040b, 0x0984, 0x0000, 0xc000, 0x0706,
1490 0x1008, 0x0000, 0x0f04, 0x7fff, 0x4d01, 0xffff, 0xffff, 0xffff,
1491 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
1492 0x0100, 0x4000, 0x121c, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
1493 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000,
1494 };
1495
1496 /* PCI interface */
1497
1498 static void
1499 e1000_mmio_setup(E1000State *d)
1500 {
1501 int i;
1502 const uint32_t excluded_regs[] = {
1503 E1000_MDIC, E1000_ICR, E1000_ICS, E1000_IMS,
1504 E1000_IMC, E1000_TCTL, E1000_TDT, PNPMMIO_SIZE
1505 };
1506
1507 memory_region_init_io(&d->mmio, OBJECT(d), &e1000_mmio_ops, d,
1508 "e1000-mmio", PNPMMIO_SIZE);
1509 memory_region_add_coalescing(&d->mmio, 0, excluded_regs[0]);
1510 for (i = 0; excluded_regs[i] != PNPMMIO_SIZE; i++)
1511 memory_region_add_coalescing(&d->mmio, excluded_regs[i] + 4,
1512 excluded_regs[i+1] - excluded_regs[i] - 4);
1513 memory_region_init_io(&d->io, OBJECT(d), &e1000_io_ops, d, "e1000-io", IOPORT_SIZE);
1514 }
1515
1516 static void
1517 pci_e1000_uninit(PCIDevice *dev)
1518 {
1519 E1000State *d = E1000(dev);
1520
1521 timer_del(d->autoneg_timer);
1522 timer_free(d->autoneg_timer);
1523 timer_del(d->mit_timer);
1524 timer_free(d->mit_timer);
1525 qemu_del_nic(d->nic);
1526 }
1527
1528 static NetClientInfo net_e1000_info = {
1529 .type = NET_CLIENT_OPTIONS_KIND_NIC,
1530 .size = sizeof(NICState),
1531 .can_receive = e1000_can_receive,
1532 .receive = e1000_receive,
1533 .receive_iov = e1000_receive_iov,
1534 .link_status_changed = e1000_set_link_status,
1535 };
1536
1537 static void e1000_write_config(PCIDevice *pci_dev, uint32_t address,
1538 uint32_t val, int len)
1539 {
1540 E1000State *s = E1000(pci_dev);
1541
1542 pci_default_write_config(pci_dev, address, val, len);
1543
1544 if (range_covers_byte(address, len, PCI_COMMAND) &&
1545 (pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER)) {
1546 qemu_flush_queued_packets(qemu_get_queue(s->nic));
1547 }
1548 }
1549
1550
1551 static void pci_e1000_realize(PCIDevice *pci_dev, Error **errp)
1552 {
1553 DeviceState *dev = DEVICE(pci_dev);
1554 E1000State *d = E1000(pci_dev);
1555 PCIDeviceClass *pdc = PCI_DEVICE_GET_CLASS(pci_dev);
1556 uint8_t *pci_conf;
1557 uint16_t checksum = 0;
1558 int i;
1559 uint8_t *macaddr;
1560
1561 pci_dev->config_write = e1000_write_config;
1562
1563 pci_conf = pci_dev->config;
1564
1565 /* TODO: RST# value should be 0, PCI spec 6.2.4 */
1566 pci_conf[PCI_CACHE_LINE_SIZE] = 0x10;
1567
1568 pci_conf[PCI_INTERRUPT_PIN] = 1; /* interrupt pin A */
1569
1570 e1000_mmio_setup(d);
1571
1572 pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio);
1573
1574 pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &d->io);
1575
1576 memmove(d->eeprom_data, e1000_eeprom_template,
1577 sizeof e1000_eeprom_template);
1578 qemu_macaddr_default_if_unset(&d->conf.macaddr);
1579 macaddr = d->conf.macaddr.a;
1580 for (i = 0; i < 3; i++)
1581 d->eeprom_data[i] = (macaddr[2*i+1]<<8) | macaddr[2*i];
1582 d->eeprom_data[11] = d->eeprom_data[13] = pdc->device_id;
1583 for (i = 0; i < EEPROM_CHECKSUM_REG; i++)
1584 checksum += d->eeprom_data[i];
1585 checksum = (uint16_t) EEPROM_SUM - checksum;
1586 d->eeprom_data[EEPROM_CHECKSUM_REG] = checksum;
1587
1588 d->nic = qemu_new_nic(&net_e1000_info, &d->conf,
1589 object_get_typename(OBJECT(d)), dev->id, d);
1590
1591 qemu_format_nic_info_str(qemu_get_queue(d->nic), macaddr);
1592
1593 d->autoneg_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, e1000_autoneg_timer, d);
1594 d->mit_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, e1000_mit_timer, d);
1595 }
1596
1597 static void qdev_e1000_reset(DeviceState *dev)
1598 {
1599 E1000State *d = E1000(dev);
1600 e1000_reset(d);
1601 }
1602
1603 static Property e1000_properties[] = {
1604 DEFINE_NIC_PROPERTIES(E1000State, conf),
1605 DEFINE_PROP_BIT("autonegotiation", E1000State,
1606 compat_flags, E1000_FLAG_AUTONEG_BIT, true),
1607 DEFINE_PROP_BIT("mitigation", E1000State,
1608 compat_flags, E1000_FLAG_MIT_BIT, true),
1609 DEFINE_PROP_END_OF_LIST(),
1610 };
1611
1612 typedef struct E1000Info {
1613 const char *name;
1614 uint16_t device_id;
1615 uint8_t revision;
1616 uint16_t phy_id2;
1617 } E1000Info;
1618
1619 static void e1000_class_init(ObjectClass *klass, void *data)
1620 {
1621 DeviceClass *dc = DEVICE_CLASS(klass);
1622 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1623 E1000BaseClass *e = E1000_DEVICE_CLASS(klass);
1624 const E1000Info *info = data;
1625
1626 k->realize = pci_e1000_realize;
1627 k->exit = pci_e1000_uninit;
1628 k->romfile = "efi-e1000.rom";
1629 k->vendor_id = PCI_VENDOR_ID_INTEL;
1630 k->device_id = info->device_id;
1631 k->revision = info->revision;
1632 e->phy_id2 = info->phy_id2;
1633 k->class_id = PCI_CLASS_NETWORK_ETHERNET;
1634 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
1635 dc->desc = "Intel Gigabit Ethernet";
1636 dc->reset = qdev_e1000_reset;
1637 dc->vmsd = &vmstate_e1000;
1638 dc->props = e1000_properties;
1639 }
1640
1641 static void e1000_instance_init(Object *obj)
1642 {
1643 E1000State *n = E1000(obj);
1644 device_add_bootindex_property(obj, &n->conf.bootindex,
1645 "bootindex", "/ethernet-phy@0",
1646 DEVICE(n), NULL);
1647 }
1648
1649 static const TypeInfo e1000_base_info = {
1650 .name = TYPE_E1000_BASE,
1651 .parent = TYPE_PCI_DEVICE,
1652 .instance_size = sizeof(E1000State),
1653 .instance_init = e1000_instance_init,
1654 .class_size = sizeof(E1000BaseClass),
1655 .abstract = true,
1656 };
1657
1658 static const E1000Info e1000_devices[] = {
1659 {
1660 .name = "e1000",
1661 .device_id = E1000_DEV_ID_82540EM,
1662 .revision = 0x03,
1663 .phy_id2 = E1000_PHY_ID2_8254xx_DEFAULT,
1664 },
1665 {
1666 .name = "e1000-82544gc",
1667 .device_id = E1000_DEV_ID_82544GC_COPPER,
1668 .revision = 0x03,
1669 .phy_id2 = E1000_PHY_ID2_82544x,
1670 },
1671 {
1672 .name = "e1000-82545em",
1673 .device_id = E1000_DEV_ID_82545EM_COPPER,
1674 .revision = 0x03,
1675 .phy_id2 = E1000_PHY_ID2_8254xx_DEFAULT,
1676 },
1677 };
1678
1679 static void e1000_register_types(void)
1680 {
1681 int i;
1682
1683 type_register_static(&e1000_base_info);
1684 for (i = 0; i < ARRAY_SIZE(e1000_devices); i++) {
1685 const E1000Info *info = &e1000_devices[i];
1686 TypeInfo type_info = {};
1687
1688 type_info.name = info->name;
1689 type_info.parent = TYPE_E1000_BASE;
1690 type_info.class_data = (void *)info;
1691 type_info.class_init = e1000_class_init;
1692 type_info.instance_init = e1000_instance_init;
1693
1694 type_register(&type_info);
1695 }
1696 }
1697
1698 type_init(e1000_register_types)
QEMU mirror