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hw: vfio: drop TYPE_FOO MACRO in VMStateDescription
[qemu/ar7.git] / hw / net / vmxnet3.c
blob4665dc95ad02952982f1cd8dd7f99cc9c159431d
1 /*
2 * QEMU VMWARE VMXNET3 paravirtual NIC
3 *
4 * Copyright (c) 2012 Ravello Systems LTD (http://ravellosystems.com)
5 *
6 * Developed by Daynix Computing LTD (http://www.daynix.com)
7 *
8 * Authors:
9 * Dmitry Fleytman <dmitry@daynix.com>
10 * Tamir Shomer <tamirs@daynix.com>
11 * Yan Vugenfirer <yan@daynix.com>
12 *
13 * This work is licensed under the terms of the GNU GPL, version 2.
14 * See the COPYING file in the top-level directory.
15 *
16 */
17
18 #include "qemu/osdep.h"
19 #include "hw/hw.h"
20 #include "hw/pci/pci.h"
21 #include "net/tap.h"
22 #include "net/checksum.h"
23 #include "sysemu/sysemu.h"
24 #include "qemu-common.h"
25 #include "qemu/bswap.h"
26 #include "hw/pci/msix.h"
27 #include "hw/pci/msi.h"
28 #include "migration/register.h"
29
30 #include "vmxnet3.h"
31 #include "vmxnet3_defs.h"
32 #include "vmxnet_debug.h"
33 #include "vmware_utils.h"
34 #include "net_tx_pkt.h"
35 #include "net_rx_pkt.h"
36
37 #define PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION 0x1
38 #define VMXNET3_MSIX_BAR_SIZE 0x2000
39 #define MIN_BUF_SIZE 60
40
41 /* Compatibility flags for migration */
42 #define VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT 0
43 #define VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS \
44 (1 << VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT)
45 #define VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT 1
46 #define VMXNET3_COMPAT_FLAG_DISABLE_PCIE \
47 (1 << VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT)
48
49 #define VMXNET3_EXP_EP_OFFSET (0x48)
50 #define VMXNET3_MSI_OFFSET(s) \
51 ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0x50 : 0x84)
52 #define VMXNET3_MSIX_OFFSET(s) \
53 ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0 : 0x9c)
54 #define VMXNET3_DSN_OFFSET (0x100)
55
56 #define VMXNET3_BAR0_IDX (0)
57 #define VMXNET3_BAR1_IDX (1)
58 #define VMXNET3_MSIX_BAR_IDX (2)
59
60 #define VMXNET3_OFF_MSIX_TABLE (0x000)
61 #define VMXNET3_OFF_MSIX_PBA(s) \
62 ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0x800 : 0x1000)
63
64 /* Link speed in Mbps should be shifted by 16 */
65 #define VMXNET3_LINK_SPEED (1000 << 16)
66
67 /* Link status: 1 - up, 0 - down. */
68 #define VMXNET3_LINK_STATUS_UP 0x1
69
70 /* Least significant bit should be set for revision and version */
71 #define VMXNET3_UPT_REVISION 0x1
72 #define VMXNET3_DEVICE_REVISION 0x1
73
74 /* Number of interrupt vectors for non-MSIx modes */
75 #define VMXNET3_MAX_NMSIX_INTRS (1)
76
77 /* Macros for rings descriptors access */
78 #define VMXNET3_READ_TX_QUEUE_DESCR8(_d, dpa, field) \
79 (vmw_shmem_ld8(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field)))
80
81 #define VMXNET3_WRITE_TX_QUEUE_DESCR8(_d, dpa, field, value) \
82 (vmw_shmem_st8(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field, value)))
83
84 #define VMXNET3_READ_TX_QUEUE_DESCR32(_d, dpa, field) \
85 (vmw_shmem_ld32(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field)))
86
87 #define VMXNET3_WRITE_TX_QUEUE_DESCR32(_d, dpa, field, value) \
88 (vmw_shmem_st32(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value))
89
90 #define VMXNET3_READ_TX_QUEUE_DESCR64(_d, dpa, field) \
91 (vmw_shmem_ld64(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field)))
92
93 #define VMXNET3_WRITE_TX_QUEUE_DESCR64(_d, dpa, field, value) \
94 (vmw_shmem_st64(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value))
95
96 #define VMXNET3_READ_RX_QUEUE_DESCR64(_d, dpa, field) \
97 (vmw_shmem_ld64(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field)))
98
99 #define VMXNET3_READ_RX_QUEUE_DESCR32(_d, dpa, field) \
100 (vmw_shmem_ld32(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field)))
101
102 #define VMXNET3_WRITE_RX_QUEUE_DESCR64(_d, dpa, field, value) \
103 (vmw_shmem_st64(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value))
104
105 #define VMXNET3_WRITE_RX_QUEUE_DESCR8(_d, dpa, field, value) \
106 (vmw_shmem_st8(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value))
107
108 /* Macros for guest driver shared area access */
109 #define VMXNET3_READ_DRV_SHARED64(_d, shpa, field) \
110 (vmw_shmem_ld64(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field)))
111
112 #define VMXNET3_READ_DRV_SHARED32(_d, shpa, field) \
113 (vmw_shmem_ld32(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field)))
114
115 #define VMXNET3_WRITE_DRV_SHARED32(_d, shpa, field, val) \
116 (vmw_shmem_st32(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field), val))
117
118 #define VMXNET3_READ_DRV_SHARED16(_d, shpa, field) \
119 (vmw_shmem_ld16(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field)))
120
121 #define VMXNET3_READ_DRV_SHARED8(_d, shpa, field) \
122 (vmw_shmem_ld8(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field)))
123
124 #define VMXNET3_READ_DRV_SHARED(_d, shpa, field, b, l) \
125 (vmw_shmem_read(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field), b, l))
126
127 #define VMXNET_FLAG_IS_SET(field, flag) (((field) & (flag)) == (flag))
128
129 typedef struct VMXNET3Class {
130 PCIDeviceClass parent_class;
131 DeviceRealize parent_dc_realize;
132 } VMXNET3Class;
133
134 #define VMXNET3_DEVICE_CLASS(klass) \
135 OBJECT_CLASS_CHECK(VMXNET3Class, (klass), TYPE_VMXNET3)
136 #define VMXNET3_DEVICE_GET_CLASS(obj) \
137 OBJECT_GET_CLASS(VMXNET3Class, (obj), TYPE_VMXNET3)
138
139 static inline void vmxnet3_ring_init(PCIDevice *d,
140 Vmxnet3Ring *ring,
141 hwaddr pa,
142 uint32_t size,
143 uint32_t cell_size,
144 bool zero_region)
145 {
146 ring->pa = pa;
147 ring->size = size;
148 ring->cell_size = cell_size;
149 ring->gen = VMXNET3_INIT_GEN;
150 ring->next = 0;
151
152 if (zero_region) {
153 vmw_shmem_set(d, pa, 0, size * cell_size);
154 }
155 }
156
157 #define VMXNET3_RING_DUMP(macro, ring_name, ridx, r) \
158 macro("%s#%d: base %" PRIx64 " size %u cell_size %u gen %d next %u", \
159 (ring_name), (ridx), \
160 (r)->pa, (r)->size, (r)->cell_size, (r)->gen, (r)->next)
161
162 static inline void vmxnet3_ring_inc(Vmxnet3Ring *ring)
163 {
164 if (++ring->next >= ring->size) {
165 ring->next = 0;
166 ring->gen ^= 1;
167 }
168 }
169
170 static inline void vmxnet3_ring_dec(Vmxnet3Ring *ring)
171 {
172 if (ring->next-- == 0) {
173 ring->next = ring->size - 1;
174 ring->gen ^= 1;
175 }
176 }
177
178 static inline hwaddr vmxnet3_ring_curr_cell_pa(Vmxnet3Ring *ring)
179 {
180 return ring->pa + ring->next * ring->cell_size;
181 }
182
183 static inline void vmxnet3_ring_read_curr_cell(PCIDevice *d, Vmxnet3Ring *ring,
184 void *buff)
185 {
186 vmw_shmem_read(d, vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size);
187 }
188
189 static inline void vmxnet3_ring_write_curr_cell(PCIDevice *d, Vmxnet3Ring *ring,
190 void *buff)
191 {
192 vmw_shmem_write(d, vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size);
193 }
194
195 static inline size_t vmxnet3_ring_curr_cell_idx(Vmxnet3Ring *ring)
196 {
197 return ring->next;
198 }
199
200 static inline uint8_t vmxnet3_ring_curr_gen(Vmxnet3Ring *ring)
201 {
202 return ring->gen;
203 }
204
205 /* Debug trace-related functions */
206 static inline void
207 vmxnet3_dump_tx_descr(struct Vmxnet3_TxDesc *descr)
208 {
209 VMW_PKPRN("TX DESCR: "
210 "addr %" PRIx64 ", len: %d, gen: %d, rsvd: %d, "
211 "dtype: %d, ext1: %d, msscof: %d, hlen: %d, om: %d, "
212 "eop: %d, cq: %d, ext2: %d, ti: %d, tci: %d",
213 descr->addr, descr->len, descr->gen, descr->rsvd,
214 descr->dtype, descr->ext1, descr->msscof, descr->hlen, descr->om,
215 descr->eop, descr->cq, descr->ext2, descr->ti, descr->tci);
216 }
217
218 static inline void
219 vmxnet3_dump_virt_hdr(struct virtio_net_hdr *vhdr)
220 {
221 VMW_PKPRN("VHDR: flags 0x%x, gso_type: 0x%x, hdr_len: %d, gso_size: %d, "
222 "csum_start: %d, csum_offset: %d",
223 vhdr->flags, vhdr->gso_type, vhdr->hdr_len, vhdr->gso_size,
224 vhdr->csum_start, vhdr->csum_offset);
225 }
226
227 static inline void
228 vmxnet3_dump_rx_descr(struct Vmxnet3_RxDesc *descr)
229 {
230 VMW_PKPRN("RX DESCR: addr %" PRIx64 ", len: %d, gen: %d, rsvd: %d, "
231 "dtype: %d, ext1: %d, btype: %d",
232 descr->addr, descr->len, descr->gen,
233 descr->rsvd, descr->dtype, descr->ext1, descr->btype);
234 }
235
236 /* Interrupt management */
237
238 /*
239 * This function returns sign whether interrupt line is in asserted state
240 * This depends on the type of interrupt used. For INTX interrupt line will
241 * be asserted until explicit deassertion, for MSI(X) interrupt line will
242 * be deasserted automatically due to notification semantics of the MSI(X)
243 * interrupts
244 */
245 static bool _vmxnet3_assert_interrupt_line(VMXNET3State *s, uint32_t int_idx)
246 {
247 PCIDevice *d = PCI_DEVICE(s);
248
249 if (s->msix_used && msix_enabled(d)) {
250 VMW_IRPRN("Sending MSI-X notification for vector %u", int_idx);
251 msix_notify(d, int_idx);
252 return false;
253 }
254 if (msi_enabled(d)) {
255 VMW_IRPRN("Sending MSI notification for vector %u", int_idx);
256 msi_notify(d, int_idx);
257 return false;
258 }
259
260 VMW_IRPRN("Asserting line for interrupt %u", int_idx);
261 pci_irq_assert(d);
262 return true;
263 }
264
265 static void _vmxnet3_deassert_interrupt_line(VMXNET3State *s, int lidx)
266 {
267 PCIDevice *d = PCI_DEVICE(s);
268
269 /*
270 * This function should never be called for MSI(X) interrupts
271 * because deassertion never required for message interrupts
272 */
273 assert(!s->msix_used || !msix_enabled(d));
274 /*
275 * This function should never be called for MSI(X) interrupts
276 * because deassertion never required for message interrupts
277 */
278 assert(!msi_enabled(d));
279
280 VMW_IRPRN("Deasserting line for interrupt %u", lidx);
281 pci_irq_deassert(d);
282 }
283
284 static void vmxnet3_update_interrupt_line_state(VMXNET3State *s, int lidx)
285 {
286 if (!s->interrupt_states[lidx].is_pending &&
287 s->interrupt_states[lidx].is_asserted) {
288 VMW_IRPRN("New interrupt line state for index %d is DOWN", lidx);
289 _vmxnet3_deassert_interrupt_line(s, lidx);
290 s->interrupt_states[lidx].is_asserted = false;
291 return;
292 }
293
294 if (s->interrupt_states[lidx].is_pending &&
295 !s->interrupt_states[lidx].is_masked &&
296 !s->interrupt_states[lidx].is_asserted) {
297 VMW_IRPRN("New interrupt line state for index %d is UP", lidx);
298 s->interrupt_states[lidx].is_asserted =
299 _vmxnet3_assert_interrupt_line(s, lidx);
300 s->interrupt_states[lidx].is_pending = false;
301 return;
302 }
303 }
304
305 static void vmxnet3_trigger_interrupt(VMXNET3State *s, int lidx)
306 {
307 PCIDevice *d = PCI_DEVICE(s);
308 s->interrupt_states[lidx].is_pending = true;
309 vmxnet3_update_interrupt_line_state(s, lidx);
310
311 if (s->msix_used && msix_enabled(d) && s->auto_int_masking) {
312 goto do_automask;
313 }
314
315 if (msi_enabled(d) && s->auto_int_masking) {
316 goto do_automask;
317 }
318
319 return;
320
321 do_automask:
322 s->interrupt_states[lidx].is_masked = true;
323 vmxnet3_update_interrupt_line_state(s, lidx);
324 }
325
326 static bool vmxnet3_interrupt_asserted(VMXNET3State *s, int lidx)
327 {
328 return s->interrupt_states[lidx].is_asserted;
329 }
330
331 static void vmxnet3_clear_interrupt(VMXNET3State *s, int int_idx)
332 {
333 s->interrupt_states[int_idx].is_pending = false;
334 if (s->auto_int_masking) {
335 s->interrupt_states[int_idx].is_masked = true;
336 }
337 vmxnet3_update_interrupt_line_state(s, int_idx);
338 }
339
340 static void
341 vmxnet3_on_interrupt_mask_changed(VMXNET3State *s, int lidx, bool is_masked)
342 {
343 s->interrupt_states[lidx].is_masked = is_masked;
344 vmxnet3_update_interrupt_line_state(s, lidx);
345 }
346
347 static bool vmxnet3_verify_driver_magic(PCIDevice *d, hwaddr dshmem)
348 {
349 return (VMXNET3_READ_DRV_SHARED32(d, dshmem, magic) == VMXNET3_REV1_MAGIC);
350 }
351
352 #define VMXNET3_GET_BYTE(x, byte_num) (((x) >> (byte_num)*8) & 0xFF)
353 #define VMXNET3_MAKE_BYTE(byte_num, val) \
354 (((uint32_t)((val) & 0xFF)) << (byte_num)*8)
355
356 static void vmxnet3_set_variable_mac(VMXNET3State *s, uint32_t h, uint32_t l)
357 {
358 s->conf.macaddr.a[0] = VMXNET3_GET_BYTE(l, 0);
359 s->conf.macaddr.a[1] = VMXNET3_GET_BYTE(l, 1);
360 s->conf.macaddr.a[2] = VMXNET3_GET_BYTE(l, 2);
361 s->conf.macaddr.a[3] = VMXNET3_GET_BYTE(l, 3);
362 s->conf.macaddr.a[4] = VMXNET3_GET_BYTE(h, 0);
363 s->conf.macaddr.a[5] = VMXNET3_GET_BYTE(h, 1);
364
365 VMW_CFPRN("Variable MAC: " MAC_FMT, MAC_ARG(s->conf.macaddr.a));
366
367 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
368 }
369
370 static uint64_t vmxnet3_get_mac_low(MACAddr *addr)
371 {
372 return VMXNET3_MAKE_BYTE(0, addr->a[0]) |
373 VMXNET3_MAKE_BYTE(1, addr->a[1]) |
374 VMXNET3_MAKE_BYTE(2, addr->a[2]) |
375 VMXNET3_MAKE_BYTE(3, addr->a[3]);
376 }
377
378 static uint64_t vmxnet3_get_mac_high(MACAddr *addr)
379 {
380 return VMXNET3_MAKE_BYTE(0, addr->a[4]) |
381 VMXNET3_MAKE_BYTE(1, addr->a[5]);
382 }
383
384 static void
385 vmxnet3_inc_tx_consumption_counter(VMXNET3State *s, int qidx)
386 {
387 vmxnet3_ring_inc(&s->txq_descr[qidx].tx_ring);
388 }
389
390 static inline void
391 vmxnet3_inc_rx_consumption_counter(VMXNET3State *s, int qidx, int ridx)
392 {
393 vmxnet3_ring_inc(&s->rxq_descr[qidx].rx_ring[ridx]);
394 }
395
396 static inline void
397 vmxnet3_inc_tx_completion_counter(VMXNET3State *s, int qidx)
398 {
399 vmxnet3_ring_inc(&s->txq_descr[qidx].comp_ring);
400 }
401
402 static void
403 vmxnet3_inc_rx_completion_counter(VMXNET3State *s, int qidx)
404 {
405 vmxnet3_ring_inc(&s->rxq_descr[qidx].comp_ring);
406 }
407
408 static void
409 vmxnet3_dec_rx_completion_counter(VMXNET3State *s, int qidx)
410 {
411 vmxnet3_ring_dec(&s->rxq_descr[qidx].comp_ring);
412 }
413
414 static void vmxnet3_complete_packet(VMXNET3State *s, int qidx, uint32_t tx_ridx)
415 {
416 struct Vmxnet3_TxCompDesc txcq_descr;
417 PCIDevice *d = PCI_DEVICE(s);
418
419 VMXNET3_RING_DUMP(VMW_RIPRN, "TXC", qidx, &s->txq_descr[qidx].comp_ring);
420
421 memset(&txcq_descr, 0, sizeof(txcq_descr));
422 txcq_descr.txdIdx = tx_ridx;
423 txcq_descr.gen = vmxnet3_ring_curr_gen(&s->txq_descr[qidx].comp_ring);
424 txcq_descr.val1 = cpu_to_le32(txcq_descr.val1);
425 txcq_descr.val2 = cpu_to_le32(txcq_descr.val2);
426 vmxnet3_ring_write_curr_cell(d, &s->txq_descr[qidx].comp_ring, &txcq_descr);
427
428 /* Flush changes in TX descriptor before changing the counter value */
429 smp_wmb();
430
431 vmxnet3_inc_tx_completion_counter(s, qidx);
432 vmxnet3_trigger_interrupt(s, s->txq_descr[qidx].intr_idx);
433 }
434
435 static bool
436 vmxnet3_setup_tx_offloads(VMXNET3State *s)
437 {
438 switch (s->offload_mode) {
439 case VMXNET3_OM_NONE:
440 net_tx_pkt_build_vheader(s->tx_pkt, false, false, 0);
441 break;
442
443 case VMXNET3_OM_CSUM:
444 net_tx_pkt_build_vheader(s->tx_pkt, false, true, 0);
445 VMW_PKPRN("L4 CSO requested\n");
446 break;
447
448 case VMXNET3_OM_TSO:
449 net_tx_pkt_build_vheader(s->tx_pkt, true, true,
450 s->cso_or_gso_size);
451 net_tx_pkt_update_ip_checksums(s->tx_pkt);
452 VMW_PKPRN("GSO offload requested.");
453 break;
454
455 default:
456 g_assert_not_reached();
457 return false;
458 }
459
460 return true;
461 }
462
463 static void
464 vmxnet3_tx_retrieve_metadata(VMXNET3State *s,
465 const struct Vmxnet3_TxDesc *txd)
466 {
467 s->offload_mode = txd->om;
468 s->cso_or_gso_size = txd->msscof;
469 s->tci = txd->tci;
470 s->needs_vlan = txd->ti;
471 }
472
473 typedef enum {
474 VMXNET3_PKT_STATUS_OK,
475 VMXNET3_PKT_STATUS_ERROR,
476 VMXNET3_PKT_STATUS_DISCARD,/* only for tx */
477 VMXNET3_PKT_STATUS_OUT_OF_BUF /* only for rx */
478 } Vmxnet3PktStatus;
479
480 static void
481 vmxnet3_on_tx_done_update_stats(VMXNET3State *s, int qidx,
482 Vmxnet3PktStatus status)
483 {
484 size_t tot_len = net_tx_pkt_get_total_len(s->tx_pkt);
485 struct UPT1_TxStats *stats = &s->txq_descr[qidx].txq_stats;
486
487 switch (status) {
488 case VMXNET3_PKT_STATUS_OK:
489 switch (net_tx_pkt_get_packet_type(s->tx_pkt)) {
490 case ETH_PKT_BCAST:
491 stats->bcastPktsTxOK++;
492 stats->bcastBytesTxOK += tot_len;
493 break;
494 case ETH_PKT_MCAST:
495 stats->mcastPktsTxOK++;
496 stats->mcastBytesTxOK += tot_len;
497 break;
498 case ETH_PKT_UCAST:
499 stats->ucastPktsTxOK++;
500 stats->ucastBytesTxOK += tot_len;
501 break;
502 default:
503 g_assert_not_reached();
504 }
505
506 if (s->offload_mode == VMXNET3_OM_TSO) {
507 /*
508 * According to VMWARE headers this statistic is a number
509 * of packets after segmentation but since we don't have
510 * this information in QEMU model, the best we can do is to
511 * provide number of non-segmented packets
512 */
513 stats->TSOPktsTxOK++;
514 stats->TSOBytesTxOK += tot_len;
515 }
516 break;
517
518 case VMXNET3_PKT_STATUS_DISCARD:
519 stats->pktsTxDiscard++;
520 break;
521
522 case VMXNET3_PKT_STATUS_ERROR:
523 stats->pktsTxError++;
524 break;
525
526 default:
527 g_assert_not_reached();
528 }
529 }
530
531 static void
532 vmxnet3_on_rx_done_update_stats(VMXNET3State *s,
533 int qidx,
534 Vmxnet3PktStatus status)
535 {
536 struct UPT1_RxStats *stats = &s->rxq_descr[qidx].rxq_stats;
537 size_t tot_len = net_rx_pkt_get_total_len(s->rx_pkt);
538
539 switch (status) {
540 case VMXNET3_PKT_STATUS_OUT_OF_BUF:
541 stats->pktsRxOutOfBuf++;
542 break;
543
544 case VMXNET3_PKT_STATUS_ERROR:
545 stats->pktsRxError++;
546 break;
547 case VMXNET3_PKT_STATUS_OK:
548 switch (net_rx_pkt_get_packet_type(s->rx_pkt)) {
549 case ETH_PKT_BCAST:
550 stats->bcastPktsRxOK++;
551 stats->bcastBytesRxOK += tot_len;
552 break;
553 case ETH_PKT_MCAST:
554 stats->mcastPktsRxOK++;
555 stats->mcastBytesRxOK += tot_len;
556 break;
557 case ETH_PKT_UCAST:
558 stats->ucastPktsRxOK++;
559 stats->ucastBytesRxOK += tot_len;
560 break;
561 default:
562 g_assert_not_reached();
563 }
564
565 if (tot_len > s->mtu) {
566 stats->LROPktsRxOK++;
567 stats->LROBytesRxOK += tot_len;
568 }
569 break;
570 default:
571 g_assert_not_reached();
572 }
573 }
574
575 static inline void
576 vmxnet3_ring_read_curr_txdesc(PCIDevice *pcidev, Vmxnet3Ring *ring,
577 struct Vmxnet3_TxDesc *txd)
578 {
579 vmxnet3_ring_read_curr_cell(pcidev, ring, txd);
580 txd->addr = le64_to_cpu(txd->addr);
581 txd->val1 = le32_to_cpu(txd->val1);
582 txd->val2 = le32_to_cpu(txd->val2);
583 }
584
585 static inline bool
586 vmxnet3_pop_next_tx_descr(VMXNET3State *s,
587 int qidx,
588 struct Vmxnet3_TxDesc *txd,
589 uint32_t *descr_idx)
590 {
591 Vmxnet3Ring *ring = &s->txq_descr[qidx].tx_ring;
592 PCIDevice *d = PCI_DEVICE(s);
593
594 vmxnet3_ring_read_curr_txdesc(d, ring, txd);
595 if (txd->gen == vmxnet3_ring_curr_gen(ring)) {
596 /* Only read after generation field verification */
597 smp_rmb();
598 /* Re-read to be sure we got the latest version */
599 vmxnet3_ring_read_curr_txdesc(d, ring, txd);
600 VMXNET3_RING_DUMP(VMW_RIPRN, "TX", qidx, ring);
601 *descr_idx = vmxnet3_ring_curr_cell_idx(ring);
602 vmxnet3_inc_tx_consumption_counter(s, qidx);
603 return true;
604 }
605
606 return false;
607 }
608
609 static bool
610 vmxnet3_send_packet(VMXNET3State *s, uint32_t qidx)
611 {
612 Vmxnet3PktStatus status = VMXNET3_PKT_STATUS_OK;
613
614 if (!vmxnet3_setup_tx_offloads(s)) {
615 status = VMXNET3_PKT_STATUS_ERROR;
616 goto func_exit;
617 }
618
619 /* debug prints */
620 vmxnet3_dump_virt_hdr(net_tx_pkt_get_vhdr(s->tx_pkt));
621 net_tx_pkt_dump(s->tx_pkt);
622
623 if (!net_tx_pkt_send(s->tx_pkt, qemu_get_queue(s->nic))) {
624 status = VMXNET3_PKT_STATUS_DISCARD;
625 goto func_exit;
626 }
627
628 func_exit:
629 vmxnet3_on_tx_done_update_stats(s, qidx, status);
630 return (status == VMXNET3_PKT_STATUS_OK);
631 }
632
633 static void vmxnet3_process_tx_queue(VMXNET3State *s, int qidx)
634 {
635 struct Vmxnet3_TxDesc txd;
636 uint32_t txd_idx;
637 uint32_t data_len;
638 hwaddr data_pa;
639
640 for (;;) {
641 if (!vmxnet3_pop_next_tx_descr(s, qidx, &txd, &txd_idx)) {
642 break;
643 }
644
645 vmxnet3_dump_tx_descr(&txd);
646
647 if (!s->skip_current_tx_pkt) {
648 data_len = (txd.len > 0) ? txd.len : VMXNET3_MAX_TX_BUF_SIZE;
649 data_pa = txd.addr;
650
651 if (!net_tx_pkt_add_raw_fragment(s->tx_pkt,
652 data_pa,
653 data_len)) {
654 s->skip_current_tx_pkt = true;
655 }
656 }
657
658 if (s->tx_sop) {
659 vmxnet3_tx_retrieve_metadata(s, &txd);
660 s->tx_sop = false;
661 }
662
663 if (txd.eop) {
664 if (!s->skip_current_tx_pkt && net_tx_pkt_parse(s->tx_pkt)) {
665 if (s->needs_vlan) {
666 net_tx_pkt_setup_vlan_header(s->tx_pkt, s->tci);
667 }
668
669 vmxnet3_send_packet(s, qidx);
670 } else {
671 vmxnet3_on_tx_done_update_stats(s, qidx,
672 VMXNET3_PKT_STATUS_ERROR);
673 }
674
675 vmxnet3_complete_packet(s, qidx, txd_idx);
676 s->tx_sop = true;
677 s->skip_current_tx_pkt = false;
678 net_tx_pkt_reset(s->tx_pkt);
679 }
680 }
681 }
682
683 static inline void
684 vmxnet3_read_next_rx_descr(VMXNET3State *s, int qidx, int ridx,
685 struct Vmxnet3_RxDesc *dbuf, uint32_t *didx)
686 {
687 PCIDevice *d = PCI_DEVICE(s);
688
689 Vmxnet3Ring *ring = &s->rxq_descr[qidx].rx_ring[ridx];
690 *didx = vmxnet3_ring_curr_cell_idx(ring);
691 vmxnet3_ring_read_curr_cell(d, ring, dbuf);
692 dbuf->addr = le64_to_cpu(dbuf->addr);
693 dbuf->val1 = le32_to_cpu(dbuf->val1);
694 dbuf->ext1 = le32_to_cpu(dbuf->ext1);
695 }
696
697 static inline uint8_t
698 vmxnet3_get_rx_ring_gen(VMXNET3State *s, int qidx, int ridx)
699 {
700 return s->rxq_descr[qidx].rx_ring[ridx].gen;
701 }
702
703 static inline hwaddr
704 vmxnet3_pop_rxc_descr(VMXNET3State *s, int qidx, uint32_t *descr_gen)
705 {
706 uint8_t ring_gen;
707 struct Vmxnet3_RxCompDesc rxcd;
708
709 hwaddr daddr =
710 vmxnet3_ring_curr_cell_pa(&s->rxq_descr[qidx].comp_ring);
711
712 pci_dma_read(PCI_DEVICE(s),
713 daddr, &rxcd, sizeof(struct Vmxnet3_RxCompDesc));
714 rxcd.val1 = le32_to_cpu(rxcd.val1);
715 rxcd.val2 = le32_to_cpu(rxcd.val2);
716 rxcd.val3 = le32_to_cpu(rxcd.val3);
717 ring_gen = vmxnet3_ring_curr_gen(&s->rxq_descr[qidx].comp_ring);
718
719 if (rxcd.gen != ring_gen) {
720 *descr_gen = ring_gen;
721 vmxnet3_inc_rx_completion_counter(s, qidx);
722 return daddr;
723 }
724
725 return 0;
726 }
727
728 static inline void
729 vmxnet3_revert_rxc_descr(VMXNET3State *s, int qidx)
730 {
731 vmxnet3_dec_rx_completion_counter(s, qidx);
732 }
733
734 #define RXQ_IDX (0)
735 #define RX_HEAD_BODY_RING (0)
736 #define RX_BODY_ONLY_RING (1)
737
738 static bool
739 vmxnet3_get_next_head_rx_descr(VMXNET3State *s,
740 struct Vmxnet3_RxDesc *descr_buf,
741 uint32_t *descr_idx,
742 uint32_t *ridx)
743 {
744 for (;;) {
745 uint32_t ring_gen;
746 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING,
747 descr_buf, descr_idx);
748
749 /* If no more free descriptors - return */
750 ring_gen = vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_HEAD_BODY_RING);
751 if (descr_buf->gen != ring_gen) {
752 return false;
753 }
754
755 /* Only read after generation field verification */
756 smp_rmb();
757 /* Re-read to be sure we got the latest version */
758 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING,
759 descr_buf, descr_idx);
760
761 /* Mark current descriptor as used/skipped */
762 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_HEAD_BODY_RING);
763
764 /* If this is what we are looking for - return */
765 if (descr_buf->btype == VMXNET3_RXD_BTYPE_HEAD) {
766 *ridx = RX_HEAD_BODY_RING;
767 return true;
768 }
769 }
770 }
771
772 static bool
773 vmxnet3_get_next_body_rx_descr(VMXNET3State *s,
774 struct Vmxnet3_RxDesc *d,
775 uint32_t *didx,
776 uint32_t *ridx)
777 {
778 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, d, didx);
779
780 /* Try to find corresponding descriptor in head/body ring */
781 if (d->gen == vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_HEAD_BODY_RING)) {
782 /* Only read after generation field verification */
783 smp_rmb();
784 /* Re-read to be sure we got the latest version */
785 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, d, didx);
786 if (d->btype == VMXNET3_RXD_BTYPE_BODY) {
787 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_HEAD_BODY_RING);
788 *ridx = RX_HEAD_BODY_RING;
789 return true;
790 }
791 }
792
793 /*
794 * If there is no free descriptors on head/body ring or next free
795 * descriptor is a head descriptor switch to body only ring
796 */
797 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_BODY_ONLY_RING, d, didx);
798
799 /* If no more free descriptors - return */
800 if (d->gen == vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_BODY_ONLY_RING)) {
801 /* Only read after generation field verification */
802 smp_rmb();
803 /* Re-read to be sure we got the latest version */
804 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_BODY_ONLY_RING, d, didx);
805 assert(d->btype == VMXNET3_RXD_BTYPE_BODY);
806 *ridx = RX_BODY_ONLY_RING;
807 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_BODY_ONLY_RING);
808 return true;
809 }
810
811 return false;
812 }
813
814 static inline bool
815 vmxnet3_get_next_rx_descr(VMXNET3State *s, bool is_head,
816 struct Vmxnet3_RxDesc *descr_buf,
817 uint32_t *descr_idx,
818 uint32_t *ridx)
819 {
820 if (is_head || !s->rx_packets_compound) {
821 return vmxnet3_get_next_head_rx_descr(s, descr_buf, descr_idx, ridx);
822 } else {
823 return vmxnet3_get_next_body_rx_descr(s, descr_buf, descr_idx, ridx);
824 }
825 }
826
827 /* In case packet was csum offloaded (either NEEDS_CSUM or DATA_VALID),
828 * the implementation always passes an RxCompDesc with a "Checksum
829 * calculated and found correct" to the OS (cnc=0 and tuc=1, see
830 * vmxnet3_rx_update_descr). This emulates the observed ESXi behavior.
831 *
832 * Therefore, if packet has the NEEDS_CSUM set, we must calculate
833 * and place a fully computed checksum into the tcp/udp header.
834 * Otherwise, the OS driver will receive a checksum-correct indication
835 * (CHECKSUM_UNNECESSARY), but with the actual tcp/udp checksum field
836 * having just the pseudo header csum value.
837 *
838 * While this is not a problem if packet is destined for local delivery,
839 * in the case the host OS performs forwarding, it will forward an
840 * incorrectly checksummed packet.
841 */
842 static void vmxnet3_rx_need_csum_calculate(struct NetRxPkt *pkt,
843 const void *pkt_data,
844 size_t pkt_len)
845 {
846 struct virtio_net_hdr *vhdr;
847 bool isip4, isip6, istcp, isudp;
848 uint8_t *data;
849 int len;
850
851 if (!net_rx_pkt_has_virt_hdr(pkt)) {
852 return;
853 }
854
855 vhdr = net_rx_pkt_get_vhdr(pkt);
856 if (!VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_NEEDS_CSUM)) {
857 return;
858 }
859
860 net_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp);
861 if (!(isip4 || isip6) || !(istcp || isudp)) {
862 return;
863 }
864
865 vmxnet3_dump_virt_hdr(vhdr);
866
867 /* Validate packet len: csum_start + scum_offset + length of csum field */
868 if (pkt_len < (vhdr->csum_start + vhdr->csum_offset + 2)) {
869 VMW_PKPRN("packet len:%zu < csum_start(%d) + csum_offset(%d) + 2, "
870 "cannot calculate checksum",
871 pkt_len, vhdr->csum_start, vhdr->csum_offset);
872 return;
873 }
874
875 data = (uint8_t *)pkt_data + vhdr->csum_start;
876 len = pkt_len - vhdr->csum_start;
877 /* Put the checksum obtained into the packet */
878 stw_be_p(data + vhdr->csum_offset,
879 net_checksum_finish_nozero(net_checksum_add(len, data)));
880
881 vhdr->flags &= ~VIRTIO_NET_HDR_F_NEEDS_CSUM;
882 vhdr->flags |= VIRTIO_NET_HDR_F_DATA_VALID;
883 }
884
885 static void vmxnet3_rx_update_descr(struct NetRxPkt *pkt,
886 struct Vmxnet3_RxCompDesc *rxcd)
887 {
888 int csum_ok, is_gso;
889 bool isip4, isip6, istcp, isudp;
890 struct virtio_net_hdr *vhdr;
891 uint8_t offload_type;
892
893 if (net_rx_pkt_is_vlan_stripped(pkt)) {
894 rxcd->ts = 1;
895 rxcd->tci = net_rx_pkt_get_vlan_tag(pkt);
896 }
897
898 if (!net_rx_pkt_has_virt_hdr(pkt)) {
899 goto nocsum;
900 }
901
902 vhdr = net_rx_pkt_get_vhdr(pkt);
903 /*
904 * Checksum is valid when lower level tell so or when lower level
905 * requires checksum offload telling that packet produced/bridged
906 * locally and did travel over network after last checksum calculation
907 * or production
908 */
909 csum_ok = VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_DATA_VALID) ||
910 VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_NEEDS_CSUM);
911
912 offload_type = vhdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN;
913 is_gso = (offload_type != VIRTIO_NET_HDR_GSO_NONE) ? 1 : 0;
914
915 if (!csum_ok && !is_gso) {
916 goto nocsum;
917 }
918
919 net_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp);
920 if ((!istcp && !isudp) || (!isip4 && !isip6)) {
921 goto nocsum;
922 }
923
924 rxcd->cnc = 0;
925 rxcd->v4 = isip4 ? 1 : 0;
926 rxcd->v6 = isip6 ? 1 : 0;
927 rxcd->tcp = istcp ? 1 : 0;
928 rxcd->udp = isudp ? 1 : 0;
929 rxcd->fcs = rxcd->tuc = rxcd->ipc = 1;
930 return;
931
932 nocsum:
933 rxcd->cnc = 1;
934 return;
935 }
936
937 static void
938 vmxnet3_pci_dma_writev(PCIDevice *pci_dev,
939 const struct iovec *iov,
940 size_t start_iov_off,
941 hwaddr target_addr,
942 size_t bytes_to_copy)
943 {
944 size_t curr_off = 0;
945 size_t copied = 0;
946
947 while (bytes_to_copy) {
948 if (start_iov_off < (curr_off + iov->iov_len)) {
949 size_t chunk_len =
950 MIN((curr_off + iov->iov_len) - start_iov_off, bytes_to_copy);
951
952 pci_dma_write(pci_dev, target_addr + copied,
953 iov->iov_base + start_iov_off - curr_off,
954 chunk_len);
955
956 copied += chunk_len;
957 start_iov_off += chunk_len;
958 curr_off = start_iov_off;
959 bytes_to_copy -= chunk_len;
960 } else {
961 curr_off += iov->iov_len;
962 }
963 iov++;
964 }
965 }
966
967 static void
968 vmxnet3_pci_dma_write_rxcd(PCIDevice *pcidev, dma_addr_t pa,
969 struct Vmxnet3_RxCompDesc *rxcd)
970 {
971 rxcd->val1 = cpu_to_le32(rxcd->val1);
972 rxcd->val2 = cpu_to_le32(rxcd->val2);
973 rxcd->val3 = cpu_to_le32(rxcd->val3);
974 pci_dma_write(pcidev, pa, rxcd, sizeof(*rxcd));
975 }
976
977 static bool
978 vmxnet3_indicate_packet(VMXNET3State *s)
979 {
980 struct Vmxnet3_RxDesc rxd;
981 PCIDevice *d = PCI_DEVICE(s);
982 bool is_head = true;
983 uint32_t rxd_idx;
984 uint32_t rx_ridx = 0;
985
986 struct Vmxnet3_RxCompDesc rxcd;
987 uint32_t new_rxcd_gen = VMXNET3_INIT_GEN;
988 hwaddr new_rxcd_pa = 0;
989 hwaddr ready_rxcd_pa = 0;
990 struct iovec *data = net_rx_pkt_get_iovec(s->rx_pkt);
991 size_t bytes_copied = 0;
992 size_t bytes_left = net_rx_pkt_get_total_len(s->rx_pkt);
993 uint16_t num_frags = 0;
994 size_t chunk_size;
995
996 net_rx_pkt_dump(s->rx_pkt);
997
998 while (bytes_left > 0) {
999
1000 /* cannot add more frags to packet */
1001 if (num_frags == s->max_rx_frags) {
1002 break;
1003 }
1004
1005 new_rxcd_pa = vmxnet3_pop_rxc_descr(s, RXQ_IDX, &new_rxcd_gen);
1006 if (!new_rxcd_pa) {
1007 break;
1008 }
1009
1010 if (!vmxnet3_get_next_rx_descr(s, is_head, &rxd, &rxd_idx, &rx_ridx)) {
1011 break;
1012 }
1013
1014 chunk_size = MIN(bytes_left, rxd.len);
1015 vmxnet3_pci_dma_writev(d, data, bytes_copied, rxd.addr, chunk_size);
1016 bytes_copied += chunk_size;
1017 bytes_left -= chunk_size;
1018
1019 vmxnet3_dump_rx_descr(&rxd);
1020
1021 if (ready_rxcd_pa != 0) {
1022 vmxnet3_pci_dma_write_rxcd(d, ready_rxcd_pa, &rxcd);
1023 }
1024
1025 memset(&rxcd, 0, sizeof(struct Vmxnet3_RxCompDesc));
1026 rxcd.rxdIdx = rxd_idx;
1027 rxcd.len = chunk_size;
1028 rxcd.sop = is_head;
1029 rxcd.gen = new_rxcd_gen;
1030 rxcd.rqID = RXQ_IDX + rx_ridx * s->rxq_num;
1031
1032 if (bytes_left == 0) {
1033 vmxnet3_rx_update_descr(s->rx_pkt, &rxcd);
1034 }
1035
1036 VMW_RIPRN("RX Completion descriptor: rxRing: %lu rxIdx %lu len %lu "
1037 "sop %d csum_correct %lu",
1038 (unsigned long) rx_ridx,
1039 (unsigned long) rxcd.rxdIdx,
1040 (unsigned long) rxcd.len,
1041 (int) rxcd.sop,
1042 (unsigned long) rxcd.tuc);
1043
1044 is_head = false;
1045 ready_rxcd_pa = new_rxcd_pa;
1046 new_rxcd_pa = 0;
1047 num_frags++;
1048 }
1049
1050 if (ready_rxcd_pa != 0) {
1051 rxcd.eop = 1;
1052 rxcd.err = (bytes_left != 0);
1053
1054 vmxnet3_pci_dma_write_rxcd(d, ready_rxcd_pa, &rxcd);
1055
1056 /* Flush RX descriptor changes */
1057 smp_wmb();
1058 }
1059
1060 if (new_rxcd_pa != 0) {
1061 vmxnet3_revert_rxc_descr(s, RXQ_IDX);
1062 }
1063
1064 vmxnet3_trigger_interrupt(s, s->rxq_descr[RXQ_IDX].intr_idx);
1065
1066 if (bytes_left == 0) {
1067 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, VMXNET3_PKT_STATUS_OK);
1068 return true;
1069 } else if (num_frags == s->max_rx_frags) {
1070 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, VMXNET3_PKT_STATUS_ERROR);
1071 return false;
1072 } else {
1073 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX,
1074 VMXNET3_PKT_STATUS_OUT_OF_BUF);
1075 return false;
1076 }
1077 }
1078
1079 static void
1080 vmxnet3_io_bar0_write(void *opaque, hwaddr addr,
1081 uint64_t val, unsigned size)
1082 {
1083 VMXNET3State *s = opaque;
1084
1085 if (!s->device_active) {
1086 return;
1087 }
1088
1089 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_TXPROD,
1090 VMXNET3_DEVICE_MAX_TX_QUEUES, VMXNET3_REG_ALIGN)) {
1091 int tx_queue_idx =
1092 VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_TXPROD,
1093 VMXNET3_REG_ALIGN);
1094 assert(tx_queue_idx <= s->txq_num);
1095 vmxnet3_process_tx_queue(s, tx_queue_idx);
1096 return;
1097 }
1098
1099 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_IMR,
1100 VMXNET3_MAX_INTRS, VMXNET3_REG_ALIGN)) {
1101 int l = VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_IMR,
1102 VMXNET3_REG_ALIGN);
1103
1104 VMW_CBPRN("Interrupt mask for line %d written: 0x%" PRIx64, l, val);
1105
1106 vmxnet3_on_interrupt_mask_changed(s, l, val);
1107 return;
1108 }
1109
1110 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_RXPROD,
1111 VMXNET3_DEVICE_MAX_RX_QUEUES, VMXNET3_REG_ALIGN) ||
1112 VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_RXPROD2,
1113 VMXNET3_DEVICE_MAX_RX_QUEUES, VMXNET3_REG_ALIGN)) {
1114 return;
1115 }
1116
1117 VMW_WRPRN("BAR0 unknown write [%" PRIx64 "] = %" PRIx64 ", size %d",
1118 (uint64_t) addr, val, size);
1119 }
1120
1121 static uint64_t
1122 vmxnet3_io_bar0_read(void *opaque, hwaddr addr, unsigned size)
1123 {
1124 VMXNET3State *s = opaque;
1125
1126 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_IMR,
1127 VMXNET3_MAX_INTRS, VMXNET3_REG_ALIGN)) {
1128 int l = VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_IMR,
1129 VMXNET3_REG_ALIGN);
1130 return s->interrupt_states[l].is_masked;
1131 }
1132
1133 VMW_CBPRN("BAR0 unknown read [%" PRIx64 "], size %d", addr, size);
1134 return 0;
1135 }
1136
1137 static void vmxnet3_reset_interrupt_states(VMXNET3State *s)
1138 {
1139 int i;
1140 for (i = 0; i < ARRAY_SIZE(s->interrupt_states); i++) {
1141 s->interrupt_states[i].is_asserted = false;
1142 s->interrupt_states[i].is_pending = false;
1143 s->interrupt_states[i].is_masked = true;
1144 }
1145 }
1146
1147 static void vmxnet3_reset_mac(VMXNET3State *s)
1148 {
1149 memcpy(&s->conf.macaddr.a, &s->perm_mac.a, sizeof(s->perm_mac.a));
1150 VMW_CFPRN("MAC address set to: " MAC_FMT, MAC_ARG(s->conf.macaddr.a));
1151 }
1152
1153 static void vmxnet3_deactivate_device(VMXNET3State *s)
1154 {
1155 if (s->device_active) {
1156 VMW_CBPRN("Deactivating vmxnet3...");
1157 net_tx_pkt_reset(s->tx_pkt);
1158 net_tx_pkt_uninit(s->tx_pkt);
1159 net_rx_pkt_uninit(s->rx_pkt);
1160 s->device_active = false;
1161 }
1162 }
1163
1164 static void vmxnet3_reset(VMXNET3State *s)
1165 {
1166 VMW_CBPRN("Resetting vmxnet3...");
1167
1168 vmxnet3_deactivate_device(s);
1169 vmxnet3_reset_interrupt_states(s);
1170 s->drv_shmem = 0;
1171 s->tx_sop = true;
1172 s->skip_current_tx_pkt = false;
1173 }
1174
1175 static void vmxnet3_update_rx_mode(VMXNET3State *s)
1176 {
1177 PCIDevice *d = PCI_DEVICE(s);
1178
1179 s->rx_mode = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem,
1180 devRead.rxFilterConf.rxMode);
1181 VMW_CFPRN("RX mode: 0x%08X", s->rx_mode);
1182 }
1183
1184 static void vmxnet3_update_vlan_filters(VMXNET3State *s)
1185 {
1186 int i;
1187 PCIDevice *d = PCI_DEVICE(s);
1188
1189 /* Copy configuration from shared memory */
1190 VMXNET3_READ_DRV_SHARED(d, s->drv_shmem,
1191 devRead.rxFilterConf.vfTable,
1192 s->vlan_table,
1193 sizeof(s->vlan_table));
1194
1195 /* Invert byte order when needed */
1196 for (i = 0; i < ARRAY_SIZE(s->vlan_table); i++) {
1197 s->vlan_table[i] = le32_to_cpu(s->vlan_table[i]);
1198 }
1199
1200 /* Dump configuration for debugging purposes */
1201 VMW_CFPRN("Configured VLANs:");
1202 for (i = 0; i < sizeof(s->vlan_table) * 8; i++) {
1203 if (VMXNET3_VFTABLE_ENTRY_IS_SET(s->vlan_table, i)) {
1204 VMW_CFPRN("\tVLAN %d is present", i);
1205 }
1206 }
1207 }
1208
1209 static void vmxnet3_update_mcast_filters(VMXNET3State *s)
1210 {
1211 PCIDevice *d = PCI_DEVICE(s);
1212
1213 uint16_t list_bytes =
1214 VMXNET3_READ_DRV_SHARED16(d, s->drv_shmem,
1215 devRead.rxFilterConf.mfTableLen);
1216
1217 s->mcast_list_len = list_bytes / sizeof(s->mcast_list[0]);
1218
1219 s->mcast_list = g_realloc(s->mcast_list, list_bytes);
1220 if (!s->mcast_list) {
1221 if (s->mcast_list_len == 0) {
1222 VMW_CFPRN("Current multicast list is empty");
1223 } else {
1224 VMW_ERPRN("Failed to allocate multicast list of %d elements",
1225 s->mcast_list_len);
1226 }
1227 s->mcast_list_len = 0;
1228 } else {
1229 int i;
1230 hwaddr mcast_list_pa =
1231 VMXNET3_READ_DRV_SHARED64(d, s->drv_shmem,
1232 devRead.rxFilterConf.mfTablePA);
1233
1234 pci_dma_read(d, mcast_list_pa, s->mcast_list, list_bytes);
1235
1236 VMW_CFPRN("Current multicast list len is %d:", s->mcast_list_len);
1237 for (i = 0; i < s->mcast_list_len; i++) {
1238 VMW_CFPRN("\t" MAC_FMT, MAC_ARG(s->mcast_list[i].a));
1239 }
1240 }
1241 }
1242
1243 static void vmxnet3_setup_rx_filtering(VMXNET3State *s)
1244 {
1245 vmxnet3_update_rx_mode(s);
1246 vmxnet3_update_vlan_filters(s);
1247 vmxnet3_update_mcast_filters(s);
1248 }
1249
1250 static uint32_t vmxnet3_get_interrupt_config(VMXNET3State *s)
1251 {
1252 uint32_t interrupt_mode = VMXNET3_IT_AUTO | (VMXNET3_IMM_AUTO << 2);
1253 VMW_CFPRN("Interrupt config is 0x%X", interrupt_mode);
1254 return interrupt_mode;
1255 }
1256
1257 static void vmxnet3_fill_stats(VMXNET3State *s)
1258 {
1259 int i;
1260 PCIDevice *d = PCI_DEVICE(s);
1261
1262 if (!s->device_active)
1263 return;
1264
1265 for (i = 0; i < s->txq_num; i++) {
1266 pci_dma_write(d,
1267 s->txq_descr[i].tx_stats_pa,
1268 &s->txq_descr[i].txq_stats,
1269 sizeof(s->txq_descr[i].txq_stats));
1270 }
1271
1272 for (i = 0; i < s->rxq_num; i++) {
1273 pci_dma_write(d,
1274 s->rxq_descr[i].rx_stats_pa,
1275 &s->rxq_descr[i].rxq_stats,
1276 sizeof(s->rxq_descr[i].rxq_stats));
1277 }
1278 }
1279
1280 static void vmxnet3_adjust_by_guest_type(VMXNET3State *s)
1281 {
1282 struct Vmxnet3_GOSInfo gos;
1283 PCIDevice *d = PCI_DEVICE(s);
1284
1285 VMXNET3_READ_DRV_SHARED(d, s->drv_shmem, devRead.misc.driverInfo.gos,
1286 &gos, sizeof(gos));
1287 s->rx_packets_compound =
1288 (gos.gosType == VMXNET3_GOS_TYPE_WIN) ? false : true;
1289
1290 VMW_CFPRN("Guest type specifics: RXCOMPOUND: %d", s->rx_packets_compound);
1291 }
1292
1293 static void
1294 vmxnet3_dump_conf_descr(const char *name,
1295 struct Vmxnet3_VariableLenConfDesc *pm_descr)
1296 {
1297 VMW_CFPRN("%s descriptor dump: Version %u, Length %u",
1298 name, pm_descr->confVer, pm_descr->confLen);
1299
1300 };
1301
1302 static void vmxnet3_update_pm_state(VMXNET3State *s)
1303 {
1304 struct Vmxnet3_VariableLenConfDesc pm_descr;
1305 PCIDevice *d = PCI_DEVICE(s);
1306
1307 pm_descr.confLen =
1308 VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, devRead.pmConfDesc.confLen);
1309 pm_descr.confVer =
1310 VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, devRead.pmConfDesc.confVer);
1311 pm_descr.confPA =
1312 VMXNET3_READ_DRV_SHARED64(d, s->drv_shmem, devRead.pmConfDesc.confPA);
1313
1314 vmxnet3_dump_conf_descr("PM State", &pm_descr);
1315 }
1316
1317 static void vmxnet3_update_features(VMXNET3State *s)
1318 {
1319 uint32_t guest_features;
1320 int rxcso_supported;
1321 PCIDevice *d = PCI_DEVICE(s);
1322
1323 guest_features = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem,
1324 devRead.misc.uptFeatures);
1325
1326 rxcso_supported = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_RXCSUM);
1327 s->rx_vlan_stripping = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_RXVLAN);
1328 s->lro_supported = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_LRO);
1329
1330 VMW_CFPRN("Features configuration: LRO: %d, RXCSUM: %d, VLANSTRIP: %d",
1331 s->lro_supported, rxcso_supported,
1332 s->rx_vlan_stripping);
1333 if (s->peer_has_vhdr) {
1334 qemu_set_offload(qemu_get_queue(s->nic)->peer,
1335 rxcso_supported,
1336 s->lro_supported,
1337 s->lro_supported,
1338 0,
1339 0);
1340 }
1341 }
1342
1343 static bool vmxnet3_verify_intx(VMXNET3State *s, int intx)
1344 {
1345 return s->msix_used || msi_enabled(PCI_DEVICE(s))
1346 || intx == pci_get_byte(s->parent_obj.config + PCI_INTERRUPT_PIN) - 1;
1347 }
1348
1349 static void vmxnet3_validate_interrupt_idx(bool is_msix, int idx)
1350 {
1351 int max_ints = is_msix ? VMXNET3_MAX_INTRS : VMXNET3_MAX_NMSIX_INTRS;
1352 if (idx >= max_ints) {
1353 hw_error("Bad interrupt index: %d\n", idx);
1354 }
1355 }
1356
1357 static void vmxnet3_validate_interrupts(VMXNET3State *s)
1358 {
1359 int i;
1360
1361 VMW_CFPRN("Verifying event interrupt index (%d)", s->event_int_idx);
1362 vmxnet3_validate_interrupt_idx(s->msix_used, s->event_int_idx);
1363
1364 for (i = 0; i < s->txq_num; i++) {
1365 int idx = s->txq_descr[i].intr_idx;
1366 VMW_CFPRN("Verifying TX queue %d interrupt index (%d)", i, idx);
1367 vmxnet3_validate_interrupt_idx(s->msix_used, idx);
1368 }
1369
1370 for (i = 0; i < s->rxq_num; i++) {
1371 int idx = s->rxq_descr[i].intr_idx;
1372 VMW_CFPRN("Verifying RX queue %d interrupt index (%d)", i, idx);
1373 vmxnet3_validate_interrupt_idx(s->msix_used, idx);
1374 }
1375 }
1376
1377 static void vmxnet3_validate_queues(VMXNET3State *s)
1378 {
1379 /*
1380 * txq_num and rxq_num are total number of queues
1381 * configured by guest. These numbers must not
1382 * exceed corresponding maximal values.
1383 */
1384
1385 if (s->txq_num > VMXNET3_DEVICE_MAX_TX_QUEUES) {
1386 hw_error("Bad TX queues number: %d\n", s->txq_num);
1387 }
1388
1389 if (s->rxq_num > VMXNET3_DEVICE_MAX_RX_QUEUES) {
1390 hw_error("Bad RX queues number: %d\n", s->rxq_num);
1391 }
1392 }
1393
1394 static void vmxnet3_activate_device(VMXNET3State *s)
1395 {
1396 int i;
1397 static const uint32_t VMXNET3_DEF_TX_THRESHOLD = 1;
1398 PCIDevice *d = PCI_DEVICE(s);
1399 hwaddr qdescr_table_pa;
1400 uint64_t pa;
1401 uint32_t size;
1402
1403 /* Verify configuration consistency */
1404 if (!vmxnet3_verify_driver_magic(d, s->drv_shmem)) {
1405 VMW_ERPRN("Device configuration received from driver is invalid");
1406 return;
1407 }
1408
1409 /* Verify if device is active */
1410 if (s->device_active) {
1411 VMW_CFPRN("Vmxnet3 device is active");
1412 return;
1413 }
1414
1415 vmxnet3_adjust_by_guest_type(s);
1416 vmxnet3_update_features(s);
1417 vmxnet3_update_pm_state(s);
1418 vmxnet3_setup_rx_filtering(s);
1419 /* Cache fields from shared memory */
1420 s->mtu = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, devRead.misc.mtu);
1421 VMW_CFPRN("MTU is %u", s->mtu);
1422
1423 s->max_rx_frags =
1424 VMXNET3_READ_DRV_SHARED16(d, s->drv_shmem, devRead.misc.maxNumRxSG);
1425
1426 if (s->max_rx_frags == 0) {
1427 s->max_rx_frags = 1;
1428 }
1429
1430 VMW_CFPRN("Max RX fragments is %u", s->max_rx_frags);
1431
1432 s->event_int_idx =
1433 VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.intrConf.eventIntrIdx);
1434 assert(vmxnet3_verify_intx(s, s->event_int_idx));
1435 VMW_CFPRN("Events interrupt line is %u", s->event_int_idx);
1436
1437 s->auto_int_masking =
1438 VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.intrConf.autoMask);
1439 VMW_CFPRN("Automatic interrupt masking is %d", (int)s->auto_int_masking);
1440
1441 s->txq_num =
1442 VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.misc.numTxQueues);
1443 s->rxq_num =
1444 VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.misc.numRxQueues);
1445
1446 VMW_CFPRN("Number of TX/RX queues %u/%u", s->txq_num, s->rxq_num);
1447 vmxnet3_validate_queues(s);
1448
1449 qdescr_table_pa =
1450 VMXNET3_READ_DRV_SHARED64(d, s->drv_shmem, devRead.misc.queueDescPA);
1451 VMW_CFPRN("TX queues descriptors table is at 0x%" PRIx64, qdescr_table_pa);
1452
1453 /*
1454 * Worst-case scenario is a packet that holds all TX rings space so
1455 * we calculate total size of all TX rings for max TX fragments number
1456 */
1457 s->max_tx_frags = 0;
1458
1459 /* TX queues */
1460 for (i = 0; i < s->txq_num; i++) {
1461 hwaddr qdescr_pa =
1462 qdescr_table_pa + i * sizeof(struct Vmxnet3_TxQueueDesc);
1463
1464 /* Read interrupt number for this TX queue */
1465 s->txq_descr[i].intr_idx =
1466 VMXNET3_READ_TX_QUEUE_DESCR8(d, qdescr_pa, conf.intrIdx);
1467 assert(vmxnet3_verify_intx(s, s->txq_descr[i].intr_idx));
1468
1469 VMW_CFPRN("TX Queue %d interrupt: %d", i, s->txq_descr[i].intr_idx);
1470
1471 /* Read rings memory locations for TX queues */
1472 pa = VMXNET3_READ_TX_QUEUE_DESCR64(d, qdescr_pa, conf.txRingBasePA);
1473 size = VMXNET3_READ_TX_QUEUE_DESCR32(d, qdescr_pa, conf.txRingSize);
1474
1475 vmxnet3_ring_init(d, &s->txq_descr[i].tx_ring, pa, size,
1476 sizeof(struct Vmxnet3_TxDesc), false);
1477 VMXNET3_RING_DUMP(VMW_CFPRN, "TX", i, &s->txq_descr[i].tx_ring);
1478
1479 s->max_tx_frags += size;
1480
1481 /* TXC ring */
1482 pa = VMXNET3_READ_TX_QUEUE_DESCR64(d, qdescr_pa, conf.compRingBasePA);
1483 size = VMXNET3_READ_TX_QUEUE_DESCR32(d, qdescr_pa, conf.compRingSize);
1484 vmxnet3_ring_init(d, &s->txq_descr[i].comp_ring, pa, size,
1485 sizeof(struct Vmxnet3_TxCompDesc), true);
1486 VMXNET3_RING_DUMP(VMW_CFPRN, "TXC", i, &s->txq_descr[i].comp_ring);
1487
1488 s->txq_descr[i].tx_stats_pa =
1489 qdescr_pa + offsetof(struct Vmxnet3_TxQueueDesc, stats);
1490
1491 memset(&s->txq_descr[i].txq_stats, 0,
1492 sizeof(s->txq_descr[i].txq_stats));
1493
1494 /* Fill device-managed parameters for queues */
1495 VMXNET3_WRITE_TX_QUEUE_DESCR32(d, qdescr_pa,
1496 ctrl.txThreshold,
1497 VMXNET3_DEF_TX_THRESHOLD);
1498 }
1499
1500 /* Preallocate TX packet wrapper */
1501 VMW_CFPRN("Max TX fragments is %u", s->max_tx_frags);
1502 net_tx_pkt_init(&s->tx_pkt, PCI_DEVICE(s),
1503 s->max_tx_frags, s->peer_has_vhdr);
1504 net_rx_pkt_init(&s->rx_pkt, s->peer_has_vhdr);
1505
1506 /* Read rings memory locations for RX queues */
1507 for (i = 0; i < s->rxq_num; i++) {
1508 int j;
1509 hwaddr qd_pa =
1510 qdescr_table_pa + s->txq_num * sizeof(struct Vmxnet3_TxQueueDesc) +
1511 i * sizeof(struct Vmxnet3_RxQueueDesc);
1512
1513 /* Read interrupt number for this RX queue */
1514 s->rxq_descr[i].intr_idx =
1515 VMXNET3_READ_TX_QUEUE_DESCR8(d, qd_pa, conf.intrIdx);
1516 assert(vmxnet3_verify_intx(s, s->rxq_descr[i].intr_idx));
1517
1518 VMW_CFPRN("RX Queue %d interrupt: %d", i, s->rxq_descr[i].intr_idx);
1519
1520 /* Read rings memory locations */
1521 for (j = 0; j < VMXNET3_RX_RINGS_PER_QUEUE; j++) {
1522 /* RX rings */
1523 pa = VMXNET3_READ_RX_QUEUE_DESCR64(d, qd_pa, conf.rxRingBasePA[j]);
1524 size = VMXNET3_READ_RX_QUEUE_DESCR32(d, qd_pa, conf.rxRingSize[j]);
1525 vmxnet3_ring_init(d, &s->rxq_descr[i].rx_ring[j], pa, size,
1526 sizeof(struct Vmxnet3_RxDesc), false);
1527 VMW_CFPRN("RX queue %d:%d: Base: %" PRIx64 ", Size: %d",
1528 i, j, pa, size);
1529 }
1530
1531 /* RXC ring */
1532 pa = VMXNET3_READ_RX_QUEUE_DESCR64(d, qd_pa, conf.compRingBasePA);
1533 size = VMXNET3_READ_RX_QUEUE_DESCR32(d, qd_pa, conf.compRingSize);
1534 vmxnet3_ring_init(d, &s->rxq_descr[i].comp_ring, pa, size,
1535 sizeof(struct Vmxnet3_RxCompDesc), true);
1536 VMW_CFPRN("RXC queue %d: Base: %" PRIx64 ", Size: %d", i, pa, size);
1537
1538 s->rxq_descr[i].rx_stats_pa =
1539 qd_pa + offsetof(struct Vmxnet3_RxQueueDesc, stats);
1540 memset(&s->rxq_descr[i].rxq_stats, 0,
1541 sizeof(s->rxq_descr[i].rxq_stats));
1542 }
1543
1544 vmxnet3_validate_interrupts(s);
1545
1546 /* Make sure everything is in place before device activation */
1547 smp_wmb();
1548
1549 vmxnet3_reset_mac(s);
1550
1551 s->device_active = true;
1552 }
1553
1554 static void vmxnet3_handle_command(VMXNET3State *s, uint64_t cmd)
1555 {
1556 s->last_command = cmd;
1557
1558 switch (cmd) {
1559 case VMXNET3_CMD_GET_PERM_MAC_HI:
1560 VMW_CBPRN("Set: Get upper part of permanent MAC");
1561 break;
1562
1563 case VMXNET3_CMD_GET_PERM_MAC_LO:
1564 VMW_CBPRN("Set: Get lower part of permanent MAC");
1565 break;
1566
1567 case VMXNET3_CMD_GET_STATS:
1568 VMW_CBPRN("Set: Get device statistics");
1569 vmxnet3_fill_stats(s);
1570 break;
1571
1572 case VMXNET3_CMD_ACTIVATE_DEV:
1573 VMW_CBPRN("Set: Activating vmxnet3 device");
1574 vmxnet3_activate_device(s);
1575 break;
1576
1577 case VMXNET3_CMD_UPDATE_RX_MODE:
1578 VMW_CBPRN("Set: Update rx mode");
1579 vmxnet3_update_rx_mode(s);
1580 break;
1581
1582 case VMXNET3_CMD_UPDATE_VLAN_FILTERS:
1583 VMW_CBPRN("Set: Update VLAN filters");
1584 vmxnet3_update_vlan_filters(s);
1585 break;
1586
1587 case VMXNET3_CMD_UPDATE_MAC_FILTERS:
1588 VMW_CBPRN("Set: Update MAC filters");
1589 vmxnet3_update_mcast_filters(s);
1590 break;
1591
1592 case VMXNET3_CMD_UPDATE_FEATURE:
1593 VMW_CBPRN("Set: Update features");
1594 vmxnet3_update_features(s);
1595 break;
1596
1597 case VMXNET3_CMD_UPDATE_PMCFG:
1598 VMW_CBPRN("Set: Update power management config");
1599 vmxnet3_update_pm_state(s);
1600 break;
1601
1602 case VMXNET3_CMD_GET_LINK:
1603 VMW_CBPRN("Set: Get link");
1604 break;
1605
1606 case VMXNET3_CMD_RESET_DEV:
1607 VMW_CBPRN("Set: Reset device");
1608 vmxnet3_reset(s);
1609 break;
1610
1611 case VMXNET3_CMD_QUIESCE_DEV:
1612 VMW_CBPRN("Set: VMXNET3_CMD_QUIESCE_DEV - deactivate the device");
1613 vmxnet3_deactivate_device(s);
1614 break;
1615
1616 case VMXNET3_CMD_GET_CONF_INTR:
1617 VMW_CBPRN("Set: VMXNET3_CMD_GET_CONF_INTR - interrupt configuration");
1618 break;
1619
1620 case VMXNET3_CMD_GET_ADAPTIVE_RING_INFO:
1621 VMW_CBPRN("Set: VMXNET3_CMD_GET_ADAPTIVE_RING_INFO - "
1622 "adaptive ring info flags");
1623 break;
1624
1625 case VMXNET3_CMD_GET_DID_LO:
1626 VMW_CBPRN("Set: Get lower part of device ID");
1627 break;
1628
1629 case VMXNET3_CMD_GET_DID_HI:
1630 VMW_CBPRN("Set: Get upper part of device ID");
1631 break;
1632
1633 case VMXNET3_CMD_GET_DEV_EXTRA_INFO:
1634 VMW_CBPRN("Set: Get device extra info");
1635 break;
1636
1637 default:
1638 VMW_CBPRN("Received unknown command: %" PRIx64, cmd);
1639 break;
1640 }
1641 }
1642
1643 static uint64_t vmxnet3_get_command_status(VMXNET3State *s)
1644 {
1645 uint64_t ret;
1646
1647 switch (s->last_command) {
1648 case VMXNET3_CMD_ACTIVATE_DEV:
1649 ret = (s->device_active) ? 0 : 1;
1650 VMW_CFPRN("Device active: %" PRIx64, ret);
1651 break;
1652
1653 case VMXNET3_CMD_RESET_DEV:
1654 case VMXNET3_CMD_QUIESCE_DEV:
1655 case VMXNET3_CMD_GET_QUEUE_STATUS:
1656 case VMXNET3_CMD_GET_DEV_EXTRA_INFO:
1657 ret = 0;
1658 break;
1659
1660 case VMXNET3_CMD_GET_LINK:
1661 ret = s->link_status_and_speed;
1662 VMW_CFPRN("Link and speed: %" PRIx64, ret);
1663 break;
1664
1665 case VMXNET3_CMD_GET_PERM_MAC_LO:
1666 ret = vmxnet3_get_mac_low(&s->perm_mac);
1667 break;
1668
1669 case VMXNET3_CMD_GET_PERM_MAC_HI:
1670 ret = vmxnet3_get_mac_high(&s->perm_mac);
1671 break;
1672
1673 case VMXNET3_CMD_GET_CONF_INTR:
1674 ret = vmxnet3_get_interrupt_config(s);
1675 break;
1676
1677 case VMXNET3_CMD_GET_ADAPTIVE_RING_INFO:
1678 ret = VMXNET3_DISABLE_ADAPTIVE_RING;
1679 break;
1680
1681 case VMXNET3_CMD_GET_DID_LO:
1682 ret = PCI_DEVICE_ID_VMWARE_VMXNET3;
1683 break;
1684
1685 case VMXNET3_CMD_GET_DID_HI:
1686 ret = VMXNET3_DEVICE_REVISION;
1687 break;
1688
1689 default:
1690 VMW_WRPRN("Received request for unknown command: %x", s->last_command);
1691 ret = 0;
1692 break;
1693 }
1694
1695 return ret;
1696 }
1697
1698 static void vmxnet3_set_events(VMXNET3State *s, uint32_t val)
1699 {
1700 uint32_t events;
1701 PCIDevice *d = PCI_DEVICE(s);
1702
1703 VMW_CBPRN("Setting events: 0x%x", val);
1704 events = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, ecr) | val;
1705 VMXNET3_WRITE_DRV_SHARED32(d, s->drv_shmem, ecr, events);
1706 }
1707
1708 static void vmxnet3_ack_events(VMXNET3State *s, uint32_t val)
1709 {
1710 PCIDevice *d = PCI_DEVICE(s);
1711 uint32_t events;
1712
1713 VMW_CBPRN("Clearing events: 0x%x", val);
1714 events = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, ecr) & ~val;
1715 VMXNET3_WRITE_DRV_SHARED32(d, s->drv_shmem, ecr, events);
1716 }
1717
1718 static void
1719 vmxnet3_io_bar1_write(void *opaque,
1720 hwaddr addr,
1721 uint64_t val,
1722 unsigned size)
1723 {
1724 VMXNET3State *s = opaque;
1725
1726 switch (addr) {
1727 /* Vmxnet3 Revision Report Selection */
1728 case VMXNET3_REG_VRRS:
1729 VMW_CBPRN("Write BAR1 [VMXNET3_REG_VRRS] = %" PRIx64 ", size %d",
1730 val, size);
1731 break;
1732
1733 /* UPT Version Report Selection */
1734 case VMXNET3_REG_UVRS:
1735 VMW_CBPRN("Write BAR1 [VMXNET3_REG_UVRS] = %" PRIx64 ", size %d",
1736 val, size);
1737 break;
1738
1739 /* Driver Shared Address Low */
1740 case VMXNET3_REG_DSAL:
1741 VMW_CBPRN("Write BAR1 [VMXNET3_REG_DSAL] = %" PRIx64 ", size %d",
1742 val, size);
1743 /*
1744 * Guest driver will first write the low part of the shared
1745 * memory address. We save it to temp variable and set the
1746 * shared address only after we get the high part
1747 */
1748 if (val == 0) {
1749 vmxnet3_deactivate_device(s);
1750 }
1751 s->temp_shared_guest_driver_memory = val;
1752 s->drv_shmem = 0;
1753 break;
1754
1755 /* Driver Shared Address High */
1756 case VMXNET3_REG_DSAH:
1757 VMW_CBPRN("Write BAR1 [VMXNET3_REG_DSAH] = %" PRIx64 ", size %d",
1758 val, size);
1759 /*
1760 * Set the shared memory between guest driver and device.
1761 * We already should have low address part.
1762 */
1763 s->drv_shmem = s->temp_shared_guest_driver_memory | (val << 32);
1764 break;
1765
1766 /* Command */
1767 case VMXNET3_REG_CMD:
1768 VMW_CBPRN("Write BAR1 [VMXNET3_REG_CMD] = %" PRIx64 ", size %d",
1769 val, size);
1770 vmxnet3_handle_command(s, val);
1771 break;
1772
1773 /* MAC Address Low */
1774 case VMXNET3_REG_MACL:
1775 VMW_CBPRN("Write BAR1 [VMXNET3_REG_MACL] = %" PRIx64 ", size %d",
1776 val, size);
1777 s->temp_mac = val;
1778 break;
1779
1780 /* MAC Address High */
1781 case VMXNET3_REG_MACH:
1782 VMW_CBPRN("Write BAR1 [VMXNET3_REG_MACH] = %" PRIx64 ", size %d",
1783 val, size);
1784 vmxnet3_set_variable_mac(s, val, s->temp_mac);
1785 break;
1786
1787 /* Interrupt Cause Register */
1788 case VMXNET3_REG_ICR:
1789 VMW_CBPRN("Write BAR1 [VMXNET3_REG_ICR] = %" PRIx64 ", size %d",
1790 val, size);
1791 g_assert_not_reached();
1792 break;
1793
1794 /* Event Cause Register */
1795 case VMXNET3_REG_ECR:
1796 VMW_CBPRN("Write BAR1 [VMXNET3_REG_ECR] = %" PRIx64 ", size %d",
1797 val, size);
1798 vmxnet3_ack_events(s, val);
1799 break;
1800
1801 default:
1802 VMW_CBPRN("Unknown Write to BAR1 [%" PRIx64 "] = %" PRIx64 ", size %d",
1803 addr, val, size);
1804 break;
1805 }
1806 }
1807
1808 static uint64_t
1809 vmxnet3_io_bar1_read(void *opaque, hwaddr addr, unsigned size)
1810 {
1811 VMXNET3State *s = opaque;
1812 uint64_t ret = 0;
1813
1814 switch (addr) {
1815 /* Vmxnet3 Revision Report Selection */
1816 case VMXNET3_REG_VRRS:
1817 VMW_CBPRN("Read BAR1 [VMXNET3_REG_VRRS], size %d", size);
1818 ret = VMXNET3_DEVICE_REVISION;
1819 break;
1820
1821 /* UPT Version Report Selection */
1822 case VMXNET3_REG_UVRS:
1823 VMW_CBPRN("Read BAR1 [VMXNET3_REG_UVRS], size %d", size);
1824 ret = VMXNET3_UPT_REVISION;
1825 break;
1826
1827 /* Command */
1828 case VMXNET3_REG_CMD:
1829 VMW_CBPRN("Read BAR1 [VMXNET3_REG_CMD], size %d", size);
1830 ret = vmxnet3_get_command_status(s);
1831 break;
1832
1833 /* MAC Address Low */
1834 case VMXNET3_REG_MACL:
1835 VMW_CBPRN("Read BAR1 [VMXNET3_REG_MACL], size %d", size);
1836 ret = vmxnet3_get_mac_low(&s->conf.macaddr);
1837 break;
1838
1839 /* MAC Address High */
1840 case VMXNET3_REG_MACH:
1841 VMW_CBPRN("Read BAR1 [VMXNET3_REG_MACH], size %d", size);
1842 ret = vmxnet3_get_mac_high(&s->conf.macaddr);
1843 break;
1844
1845 /*
1846 * Interrupt Cause Register
1847 * Used for legacy interrupts only so interrupt index always 0
1848 */
1849 case VMXNET3_REG_ICR:
1850 VMW_CBPRN("Read BAR1 [VMXNET3_REG_ICR], size %d", size);
1851 if (vmxnet3_interrupt_asserted(s, 0)) {
1852 vmxnet3_clear_interrupt(s, 0);
1853 ret = true;
1854 } else {
1855 ret = false;
1856 }
1857 break;
1858
1859 default:
1860 VMW_CBPRN("Unknow read BAR1[%" PRIx64 "], %d bytes", addr, size);
1861 break;
1862 }
1863
1864 return ret;
1865 }
1866
1867 static int
1868 vmxnet3_can_receive(NetClientState *nc)
1869 {
1870 VMXNET3State *s = qemu_get_nic_opaque(nc);
1871 return s->device_active &&
1872 VMXNET_FLAG_IS_SET(s->link_status_and_speed, VMXNET3_LINK_STATUS_UP);
1873 }
1874
1875 static inline bool
1876 vmxnet3_is_registered_vlan(VMXNET3State *s, const void *data)
1877 {
1878 uint16_t vlan_tag = eth_get_pkt_tci(data) & VLAN_VID_MASK;
1879 if (IS_SPECIAL_VLAN_ID(vlan_tag)) {
1880 return true;
1881 }
1882
1883 return VMXNET3_VFTABLE_ENTRY_IS_SET(s->vlan_table, vlan_tag);
1884 }
1885
1886 static bool
1887 vmxnet3_is_allowed_mcast_group(VMXNET3State *s, const uint8_t *group_mac)
1888 {
1889 int i;
1890 for (i = 0; i < s->mcast_list_len; i++) {
1891 if (!memcmp(group_mac, s->mcast_list[i].a, sizeof(s->mcast_list[i]))) {
1892 return true;
1893 }
1894 }
1895 return false;
1896 }
1897
1898 static bool
1899 vmxnet3_rx_filter_may_indicate(VMXNET3State *s, const void *data,
1900 size_t size)
1901 {
1902 struct eth_header *ehdr = PKT_GET_ETH_HDR(data);
1903
1904 if (VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_PROMISC)) {
1905 return true;
1906 }
1907
1908 if (!vmxnet3_is_registered_vlan(s, data)) {
1909 return false;
1910 }
1911
1912 switch (net_rx_pkt_get_packet_type(s->rx_pkt)) {
1913 case ETH_PKT_UCAST:
1914 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_UCAST)) {
1915 return false;
1916 }
1917 if (memcmp(s->conf.macaddr.a, ehdr->h_dest, ETH_ALEN)) {
1918 return false;
1919 }
1920 break;
1921
1922 case ETH_PKT_BCAST:
1923 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_BCAST)) {
1924 return false;
1925 }
1926 break;
1927
1928 case ETH_PKT_MCAST:
1929 if (VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_ALL_MULTI)) {
1930 return true;
1931 }
1932 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_MCAST)) {
1933 return false;
1934 }
1935 if (!vmxnet3_is_allowed_mcast_group(s, ehdr->h_dest)) {
1936 return false;
1937 }
1938 break;
1939
1940 default:
1941 g_assert_not_reached();
1942 }
1943
1944 return true;
1945 }
1946
1947 static ssize_t
1948 vmxnet3_receive(NetClientState *nc, const uint8_t *buf, size_t size)
1949 {
1950 VMXNET3State *s = qemu_get_nic_opaque(nc);
1951 size_t bytes_indicated;
1952 uint8_t min_buf[MIN_BUF_SIZE];
1953
1954 if (!vmxnet3_can_receive(nc)) {
1955 VMW_PKPRN("Cannot receive now");
1956 return -1;
1957 }
1958
1959 if (s->peer_has_vhdr) {
1960 net_rx_pkt_set_vhdr(s->rx_pkt, (struct virtio_net_hdr *)buf);
1961 buf += sizeof(struct virtio_net_hdr);
1962 size -= sizeof(struct virtio_net_hdr);
1963 }
1964
1965 /* Pad to minimum Ethernet frame length */
1966 if (size < sizeof(min_buf)) {
1967 memcpy(min_buf, buf, size);
1968 memset(&min_buf[size], 0, sizeof(min_buf) - size);
1969 buf = min_buf;
1970 size = sizeof(min_buf);
1971 }
1972
1973 net_rx_pkt_set_packet_type(s->rx_pkt,
1974 get_eth_packet_type(PKT_GET_ETH_HDR(buf)));
1975
1976 if (vmxnet3_rx_filter_may_indicate(s, buf, size)) {
1977 net_rx_pkt_set_protocols(s->rx_pkt, buf, size);
1978 vmxnet3_rx_need_csum_calculate(s->rx_pkt, buf, size);
1979 net_rx_pkt_attach_data(s->rx_pkt, buf, size, s->rx_vlan_stripping);
1980 bytes_indicated = vmxnet3_indicate_packet(s) ? size : -1;
1981 if (bytes_indicated < size) {
1982 VMW_PKPRN("RX: %zu of %zu bytes indicated", bytes_indicated, size);
1983 }
1984 } else {
1985 VMW_PKPRN("Packet dropped by RX filter");
1986 bytes_indicated = size;
1987 }
1988
1989 assert(size > 0);
1990 assert(bytes_indicated != 0);
1991 return bytes_indicated;
1992 }
1993
1994 static void vmxnet3_set_link_status(NetClientState *nc)
1995 {
1996 VMXNET3State *s = qemu_get_nic_opaque(nc);
1997
1998 if (nc->link_down) {
1999 s->link_status_and_speed &= ~VMXNET3_LINK_STATUS_UP;
2000 } else {
2001 s->link_status_and_speed |= VMXNET3_LINK_STATUS_UP;
2002 }
2003
2004 vmxnet3_set_events(s, VMXNET3_ECR_LINK);
2005 vmxnet3_trigger_interrupt(s, s->event_int_idx);
2006 }
2007
2008 static NetClientInfo net_vmxnet3_info = {
2009 .type = NET_CLIENT_DRIVER_NIC,
2010 .size = sizeof(NICState),
2011 .receive = vmxnet3_receive,
2012 .link_status_changed = vmxnet3_set_link_status,
2013 };
2014
2015 static bool vmxnet3_peer_has_vnet_hdr(VMXNET3State *s)
2016 {
2017 NetClientState *nc = qemu_get_queue(s->nic);
2018
2019 if (qemu_has_vnet_hdr(nc->peer)) {
2020 return true;
2021 }
2022
2023 return false;
2024 }
2025
2026 static void vmxnet3_net_uninit(VMXNET3State *s)
2027 {
2028 g_free(s->mcast_list);
2029 vmxnet3_deactivate_device(s);
2030 qemu_del_nic(s->nic);
2031 }
2032
2033 static void vmxnet3_net_init(VMXNET3State *s)
2034 {
2035 DeviceState *d = DEVICE(s);
2036
2037 VMW_CBPRN("vmxnet3_net_init called...");
2038
2039 qemu_macaddr_default_if_unset(&s->conf.macaddr);
2040
2041 /* Windows guest will query the address that was set on init */
2042 memcpy(&s->perm_mac.a, &s->conf.macaddr.a, sizeof(s->perm_mac.a));
2043
2044 s->mcast_list = NULL;
2045 s->mcast_list_len = 0;
2046
2047 s->link_status_and_speed = VMXNET3_LINK_SPEED | VMXNET3_LINK_STATUS_UP;
2048
2049 VMW_CFPRN("Permanent MAC: " MAC_FMT, MAC_ARG(s->perm_mac.a));
2050
2051 s->nic = qemu_new_nic(&net_vmxnet3_info, &s->conf,
2052 object_get_typename(OBJECT(s)),
2053 d->id, s);
2054
2055 s->peer_has_vhdr = vmxnet3_peer_has_vnet_hdr(s);
2056 s->tx_sop = true;
2057 s->skip_current_tx_pkt = false;
2058 s->tx_pkt = NULL;
2059 s->rx_pkt = NULL;
2060 s->rx_vlan_stripping = false;
2061 s->lro_supported = false;
2062
2063 if (s->peer_has_vhdr) {
2064 qemu_set_vnet_hdr_len(qemu_get_queue(s->nic)->peer,
2065 sizeof(struct virtio_net_hdr));
2066
2067 qemu_using_vnet_hdr(qemu_get_queue(s->nic)->peer, 1);
2068 }
2069
2070 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
2071 }
2072
2073 static void
2074 vmxnet3_unuse_msix_vectors(VMXNET3State *s, int num_vectors)
2075 {
2076 PCIDevice *d = PCI_DEVICE(s);
2077 int i;
2078 for (i = 0; i < num_vectors; i++) {
2079 msix_vector_unuse(d, i);
2080 }
2081 }
2082
2083 static bool
2084 vmxnet3_use_msix_vectors(VMXNET3State *s, int num_vectors)
2085 {
2086 PCIDevice *d = PCI_DEVICE(s);
2087 int i;
2088 for (i = 0; i < num_vectors; i++) {
2089 int res = msix_vector_use(d, i);
2090 if (0 > res) {
2091 VMW_WRPRN("Failed to use MSI-X vector %d, error %d", i, res);
2092 vmxnet3_unuse_msix_vectors(s, i);
2093 return false;
2094 }
2095 }
2096 return true;
2097 }
2098
2099 static bool
2100 vmxnet3_init_msix(VMXNET3State *s)
2101 {
2102 PCIDevice *d = PCI_DEVICE(s);
2103 int res = msix_init(d, VMXNET3_MAX_INTRS,
2104 &s->msix_bar,
2105 VMXNET3_MSIX_BAR_IDX, VMXNET3_OFF_MSIX_TABLE,
2106 &s->msix_bar,
2107 VMXNET3_MSIX_BAR_IDX, VMXNET3_OFF_MSIX_PBA(s),
2108 VMXNET3_MSIX_OFFSET(s), NULL);
2109
2110 if (0 > res) {
2111 VMW_WRPRN("Failed to initialize MSI-X, error %d", res);
2112 s->msix_used = false;
2113 } else {
2114 if (!vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS)) {
2115 VMW_WRPRN("Failed to use MSI-X vectors, error %d", res);
2116 msix_uninit(d, &s->msix_bar, &s->msix_bar);
2117 s->msix_used = false;
2118 } else {
2119 s->msix_used = true;
2120 }
2121 }
2122 return s->msix_used;
2123 }
2124
2125 static void
2126 vmxnet3_cleanup_msix(VMXNET3State *s)
2127 {
2128 PCIDevice *d = PCI_DEVICE(s);
2129
2130 if (s->msix_used) {
2131 vmxnet3_unuse_msix_vectors(s, VMXNET3_MAX_INTRS);
2132 msix_uninit(d, &s->msix_bar, &s->msix_bar);
2133 }
2134 }
2135
2136 static void
2137 vmxnet3_cleanup_msi(VMXNET3State *s)
2138 {
2139 PCIDevice *d = PCI_DEVICE(s);
2140
2141 msi_uninit(d);
2142 }
2143
2144 static void
2145 vmxnet3_msix_save(QEMUFile *f, void *opaque)
2146 {
2147 PCIDevice *d = PCI_DEVICE(opaque);
2148 msix_save(d, f);
2149 }
2150
2151 static int
2152 vmxnet3_msix_load(QEMUFile *f, void *opaque, int version_id)
2153 {
2154 PCIDevice *d = PCI_DEVICE(opaque);
2155 msix_load(d, f);
2156 return 0;
2157 }
2158
2159 static const MemoryRegionOps b0_ops = {
2160 .read = vmxnet3_io_bar0_read,
2161 .write = vmxnet3_io_bar0_write,
2162 .endianness = DEVICE_LITTLE_ENDIAN,
2163 .impl = {
2164 .min_access_size = 4,
2165 .max_access_size = 4,
2166 },
2167 };
2168
2169 static const MemoryRegionOps b1_ops = {
2170 .read = vmxnet3_io_bar1_read,
2171 .write = vmxnet3_io_bar1_write,
2172 .endianness = DEVICE_LITTLE_ENDIAN,
2173 .impl = {
2174 .min_access_size = 4,
2175 .max_access_size = 4,
2176 },
2177 };
2178
2179 static SaveVMHandlers savevm_vmxnet3_msix = {
2180 .save_state = vmxnet3_msix_save,
2181 .load_state = vmxnet3_msix_load,
2182 };
2183
2184 static uint64_t vmxnet3_device_serial_num(VMXNET3State *s)
2185 {
2186 uint64_t dsn_payload;
2187 uint8_t *dsnp = (uint8_t *)&dsn_payload;
2188
2189 dsnp[0] = 0xfe;
2190 dsnp[1] = s->conf.macaddr.a[3];
2191 dsnp[2] = s->conf.macaddr.a[4];
2192 dsnp[3] = s->conf.macaddr.a[5];
2193 dsnp[4] = s->conf.macaddr.a[0];
2194 dsnp[5] = s->conf.macaddr.a[1];
2195 dsnp[6] = s->conf.macaddr.a[2];
2196 dsnp[7] = 0xff;
2197 return dsn_payload;
2198 }
2199
2200
2201 #define VMXNET3_USE_64BIT (true)
2202 #define VMXNET3_PER_VECTOR_MASK (false)
2203
2204 static void vmxnet3_pci_realize(PCIDevice *pci_dev, Error **errp)
2205 {
2206 DeviceState *dev = DEVICE(pci_dev);
2207 VMXNET3State *s = VMXNET3(pci_dev);
2208 int ret;
2209
2210 VMW_CBPRN("Starting init...");
2211
2212 memory_region_init_io(&s->bar0, OBJECT(s), &b0_ops, s,
2213 "vmxnet3-b0", VMXNET3_PT_REG_SIZE);
2214 pci_register_bar(pci_dev, VMXNET3_BAR0_IDX,
2215 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar0);
2216
2217 memory_region_init_io(&s->bar1, OBJECT(s), &b1_ops, s,
2218 "vmxnet3-b1", VMXNET3_VD_REG_SIZE);
2219 pci_register_bar(pci_dev, VMXNET3_BAR1_IDX,
2220 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar1);
2221
2222 memory_region_init(&s->msix_bar, OBJECT(s), "vmxnet3-msix-bar",
2223 VMXNET3_MSIX_BAR_SIZE);
2224 pci_register_bar(pci_dev, VMXNET3_MSIX_BAR_IDX,
2225 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->msix_bar);
2226
2227 vmxnet3_reset_interrupt_states(s);
2228
2229 /* Interrupt pin A */
2230 pci_dev->config[PCI_INTERRUPT_PIN] = 0x01;
2231
2232 ret = msi_init(pci_dev, VMXNET3_MSI_OFFSET(s), VMXNET3_MAX_NMSIX_INTRS,
2233 VMXNET3_USE_64BIT, VMXNET3_PER_VECTOR_MASK, NULL);
2234 /* Any error other than -ENOTSUP(board's MSI support is broken)
2235 * is a programming error. Fall back to INTx silently on -ENOTSUP */
2236 assert(!ret || ret == -ENOTSUP);
2237
2238 if (!vmxnet3_init_msix(s)) {
2239 VMW_WRPRN("Failed to initialize MSI-X, configuration is inconsistent.");
2240 }
2241
2242 vmxnet3_net_init(s);
2243
2244 if (pci_is_express(pci_dev)) {
2245 if (pci_bus_is_express(pci_get_bus(pci_dev))) {
2246 pcie_endpoint_cap_init(pci_dev, VMXNET3_EXP_EP_OFFSET);
2247 }
2248
2249 pcie_dev_ser_num_init(pci_dev, VMXNET3_DSN_OFFSET,
2250 vmxnet3_device_serial_num(s));
2251 }
2252
2253 register_savevm_live(dev, "vmxnet3-msix", -1, 1, &savevm_vmxnet3_msix, s);
2254 }
2255
2256 static void vmxnet3_instance_init(Object *obj)
2257 {
2258 VMXNET3State *s = VMXNET3(obj);
2259 device_add_bootindex_property(obj, &s->conf.bootindex,
2260 "bootindex", "/ethernet-phy@0",
2261 DEVICE(obj), NULL);
2262 }
2263
2264 static void vmxnet3_pci_uninit(PCIDevice *pci_dev)
2265 {
2266 DeviceState *dev = DEVICE(pci_dev);
2267 VMXNET3State *s = VMXNET3(pci_dev);
2268
2269 VMW_CBPRN("Starting uninit...");
2270
2271 unregister_savevm(dev, "vmxnet3-msix", s);
2272
2273 vmxnet3_net_uninit(s);
2274
2275 vmxnet3_cleanup_msix(s);
2276
2277 vmxnet3_cleanup_msi(s);
2278 }
2279
2280 static void vmxnet3_qdev_reset(DeviceState *dev)
2281 {
2282 PCIDevice *d = PCI_DEVICE(dev);
2283 VMXNET3State *s = VMXNET3(d);
2284
2285 VMW_CBPRN("Starting QDEV reset...");
2286 vmxnet3_reset(s);
2287 }
2288
2289 static bool vmxnet3_mc_list_needed(void *opaque)
2290 {
2291 return true;
2292 }
2293
2294 static int vmxnet3_mcast_list_pre_load(void *opaque)
2295 {
2296 VMXNET3State *s = opaque;
2297
2298 s->mcast_list = g_malloc(s->mcast_list_buff_size);
2299
2300 return 0;
2301 }
2302
2303
2304 static int vmxnet3_pre_save(void *opaque)
2305 {
2306 VMXNET3State *s = opaque;
2307
2308 s->mcast_list_buff_size = s->mcast_list_len * sizeof(MACAddr);
2309
2310 return 0;
2311 }
2312
2313 static const VMStateDescription vmxstate_vmxnet3_mcast_list = {
2314 .name = "vmxnet3/mcast_list",
2315 .version_id = 1,
2316 .minimum_version_id = 1,
2317 .pre_load = vmxnet3_mcast_list_pre_load,
2318 .needed = vmxnet3_mc_list_needed,
2319 .fields = (VMStateField[]) {
2320 VMSTATE_VBUFFER_UINT32(mcast_list, VMXNET3State, 0, NULL,
2321 mcast_list_buff_size),
2322 VMSTATE_END_OF_LIST()
2323 }
2324 };
2325
2326 static const VMStateDescription vmstate_vmxnet3_ring = {
2327 .name = "vmxnet3-ring",
2328 .version_id = 0,
2329 .fields = (VMStateField[]) {
2330 VMSTATE_UINT64(pa, Vmxnet3Ring),
2331 VMSTATE_UINT32(size, Vmxnet3Ring),
2332 VMSTATE_UINT32(cell_size, Vmxnet3Ring),
2333 VMSTATE_UINT32(next, Vmxnet3Ring),
2334 VMSTATE_UINT8(gen, Vmxnet3Ring),
2335 VMSTATE_END_OF_LIST()
2336 }
2337 };
2338
2339 static const VMStateDescription vmstate_vmxnet3_tx_stats = {
2340 .name = "vmxnet3-tx-stats",
2341 .version_id = 0,
2342 .fields = (VMStateField[]) {
2343 VMSTATE_UINT64(TSOPktsTxOK, struct UPT1_TxStats),
2344 VMSTATE_UINT64(TSOBytesTxOK, struct UPT1_TxStats),
2345 VMSTATE_UINT64(ucastPktsTxOK, struct UPT1_TxStats),
2346 VMSTATE_UINT64(ucastBytesTxOK, struct UPT1_TxStats),
2347 VMSTATE_UINT64(mcastPktsTxOK, struct UPT1_TxStats),
2348 VMSTATE_UINT64(mcastBytesTxOK, struct UPT1_TxStats),
2349 VMSTATE_UINT64(bcastPktsTxOK, struct UPT1_TxStats),
2350 VMSTATE_UINT64(bcastBytesTxOK, struct UPT1_TxStats),
2351 VMSTATE_UINT64(pktsTxError, struct UPT1_TxStats),
2352 VMSTATE_UINT64(pktsTxDiscard, struct UPT1_TxStats),
2353 VMSTATE_END_OF_LIST()
2354 }
2355 };
2356
2357 static const VMStateDescription vmstate_vmxnet3_txq_descr = {
2358 .name = "vmxnet3-txq-descr",
2359 .version_id = 0,
2360 .fields = (VMStateField[]) {
2361 VMSTATE_STRUCT(tx_ring, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_ring,
2362 Vmxnet3Ring),
2363 VMSTATE_STRUCT(comp_ring, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_ring,
2364 Vmxnet3Ring),
2365 VMSTATE_UINT8(intr_idx, Vmxnet3TxqDescr),
2366 VMSTATE_UINT64(tx_stats_pa, Vmxnet3TxqDescr),
2367 VMSTATE_STRUCT(txq_stats, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_tx_stats,
2368 struct UPT1_TxStats),
2369 VMSTATE_END_OF_LIST()
2370 }
2371 };
2372
2373 static const VMStateDescription vmstate_vmxnet3_rx_stats = {
2374 .name = "vmxnet3-rx-stats",
2375 .version_id = 0,
2376 .fields = (VMStateField[]) {
2377 VMSTATE_UINT64(LROPktsRxOK, struct UPT1_RxStats),
2378 VMSTATE_UINT64(LROBytesRxOK, struct UPT1_RxStats),
2379 VMSTATE_UINT64(ucastPktsRxOK, struct UPT1_RxStats),
2380 VMSTATE_UINT64(ucastBytesRxOK, struct UPT1_RxStats),
2381 VMSTATE_UINT64(mcastPktsRxOK, struct UPT1_RxStats),
2382 VMSTATE_UINT64(mcastBytesRxOK, struct UPT1_RxStats),
2383 VMSTATE_UINT64(bcastPktsRxOK, struct UPT1_RxStats),
2384 VMSTATE_UINT64(bcastBytesRxOK, struct UPT1_RxStats),
2385 VMSTATE_UINT64(pktsRxOutOfBuf, struct UPT1_RxStats),
2386 VMSTATE_UINT64(pktsRxError, struct UPT1_RxStats),
2387 VMSTATE_END_OF_LIST()
2388 }
2389 };
2390
2391 static const VMStateDescription vmstate_vmxnet3_rxq_descr = {
2392 .name = "vmxnet3-rxq-descr",
2393 .version_id = 0,
2394 .fields = (VMStateField[]) {
2395 VMSTATE_STRUCT_ARRAY(rx_ring, Vmxnet3RxqDescr,
2396 VMXNET3_RX_RINGS_PER_QUEUE, 0,
2397 vmstate_vmxnet3_ring, Vmxnet3Ring),
2398 VMSTATE_STRUCT(comp_ring, Vmxnet3RxqDescr, 0, vmstate_vmxnet3_ring,
2399 Vmxnet3Ring),
2400 VMSTATE_UINT8(intr_idx, Vmxnet3RxqDescr),
2401 VMSTATE_UINT64(rx_stats_pa, Vmxnet3RxqDescr),
2402 VMSTATE_STRUCT(rxq_stats, Vmxnet3RxqDescr, 0, vmstate_vmxnet3_rx_stats,
2403 struct UPT1_RxStats),
2404 VMSTATE_END_OF_LIST()
2405 }
2406 };
2407
2408 static int vmxnet3_post_load(void *opaque, int version_id)
2409 {
2410 VMXNET3State *s = opaque;
2411 PCIDevice *d = PCI_DEVICE(s);
2412
2413 net_tx_pkt_init(&s->tx_pkt, PCI_DEVICE(s),
2414 s->max_tx_frags, s->peer_has_vhdr);
2415 net_rx_pkt_init(&s->rx_pkt, s->peer_has_vhdr);
2416
2417 if (s->msix_used) {
2418 if (!vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS)) {
2419 VMW_WRPRN("Failed to re-use MSI-X vectors");
2420 msix_uninit(d, &s->msix_bar, &s->msix_bar);
2421 s->msix_used = false;
2422 return -1;
2423 }
2424 }
2425
2426 vmxnet3_validate_queues(s);
2427 vmxnet3_validate_interrupts(s);
2428
2429 return 0;
2430 }
2431
2432 static const VMStateDescription vmstate_vmxnet3_int_state = {
2433 .name = "vmxnet3-int-state",
2434 .version_id = 0,
2435 .fields = (VMStateField[]) {
2436 VMSTATE_BOOL(is_masked, Vmxnet3IntState),
2437 VMSTATE_BOOL(is_pending, Vmxnet3IntState),
2438 VMSTATE_BOOL(is_asserted, Vmxnet3IntState),
2439 VMSTATE_END_OF_LIST()
2440 }
2441 };
2442
2443 static bool vmxnet3_vmstate_need_pcie_device(void *opaque)
2444 {
2445 VMXNET3State *s = VMXNET3(opaque);
2446
2447 return !(s->compat_flags & VMXNET3_COMPAT_FLAG_DISABLE_PCIE);
2448 }
2449
2450 static bool vmxnet3_vmstate_test_pci_device(void *opaque, int version_id)
2451 {
2452 return !vmxnet3_vmstate_need_pcie_device(opaque);
2453 }
2454
2455 static const VMStateDescription vmstate_vmxnet3_pcie_device = {
2456 .name = "vmxnet3/pcie",
2457 .version_id = 1,
2458 .minimum_version_id = 1,
2459 .needed = vmxnet3_vmstate_need_pcie_device,
2460 .fields = (VMStateField[]) {
2461 VMSTATE_PCI_DEVICE(parent_obj, VMXNET3State),
2462 VMSTATE_END_OF_LIST()
2463 }
2464 };
2465
2466 static const VMStateDescription vmstate_vmxnet3 = {
2467 .name = "vmxnet3",
2468 .version_id = 1,
2469 .minimum_version_id = 1,
2470 .pre_save = vmxnet3_pre_save,
2471 .post_load = vmxnet3_post_load,
2472 .fields = (VMStateField[]) {
2473 VMSTATE_STRUCT_TEST(parent_obj, VMXNET3State,
2474 vmxnet3_vmstate_test_pci_device, 0,
2475 vmstate_pci_device, PCIDevice),
2476 VMSTATE_BOOL(rx_packets_compound, VMXNET3State),
2477 VMSTATE_BOOL(rx_vlan_stripping, VMXNET3State),
2478 VMSTATE_BOOL(lro_supported, VMXNET3State),
2479 VMSTATE_UINT32(rx_mode, VMXNET3State),
2480 VMSTATE_UINT32(mcast_list_len, VMXNET3State),
2481 VMSTATE_UINT32(mcast_list_buff_size, VMXNET3State),
2482 VMSTATE_UINT32_ARRAY(vlan_table, VMXNET3State, VMXNET3_VFT_SIZE),
2483 VMSTATE_UINT32(mtu, VMXNET3State),
2484 VMSTATE_UINT16(max_rx_frags, VMXNET3State),
2485 VMSTATE_UINT32(max_tx_frags, VMXNET3State),
2486 VMSTATE_UINT8(event_int_idx, VMXNET3State),
2487 VMSTATE_BOOL(auto_int_masking, VMXNET3State),
2488 VMSTATE_UINT8(txq_num, VMXNET3State),
2489 VMSTATE_UINT8(rxq_num, VMXNET3State),
2490 VMSTATE_UINT32(device_active, VMXNET3State),
2491 VMSTATE_UINT32(last_command, VMXNET3State),
2492 VMSTATE_UINT32(link_status_and_speed, VMXNET3State),
2493 VMSTATE_UINT32(temp_mac, VMXNET3State),
2494 VMSTATE_UINT64(drv_shmem, VMXNET3State),
2495 VMSTATE_UINT64(temp_shared_guest_driver_memory, VMXNET3State),
2496
2497 VMSTATE_STRUCT_ARRAY(txq_descr, VMXNET3State,
2498 VMXNET3_DEVICE_MAX_TX_QUEUES, 0, vmstate_vmxnet3_txq_descr,
2499 Vmxnet3TxqDescr),
2500 VMSTATE_STRUCT_ARRAY(rxq_descr, VMXNET3State,
2501 VMXNET3_DEVICE_MAX_RX_QUEUES, 0, vmstate_vmxnet3_rxq_descr,
2502 Vmxnet3RxqDescr),
2503 VMSTATE_STRUCT_ARRAY(interrupt_states, VMXNET3State,
2504 VMXNET3_MAX_INTRS, 0, vmstate_vmxnet3_int_state,
2505 Vmxnet3IntState),
2506
2507 VMSTATE_END_OF_LIST()
2508 },
2509 .subsections = (const VMStateDescription*[]) {
2510 &vmxstate_vmxnet3_mcast_list,
2511 &vmstate_vmxnet3_pcie_device,
2512 NULL
2513 }
2514 };
2515
2516 static Property vmxnet3_properties[] = {
2517 DEFINE_NIC_PROPERTIES(VMXNET3State, conf),
2518 DEFINE_PROP_BIT("x-old-msi-offsets", VMXNET3State, compat_flags,
2519 VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT, false),
2520 DEFINE_PROP_BIT("x-disable-pcie", VMXNET3State, compat_flags,
2521 VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT, false),
2522 DEFINE_PROP_END_OF_LIST(),
2523 };
2524
2525 static void vmxnet3_realize(DeviceState *qdev, Error **errp)
2526 {
2527 VMXNET3Class *vc = VMXNET3_DEVICE_GET_CLASS(qdev);
2528 PCIDevice *pci_dev = PCI_DEVICE(qdev);
2529 VMXNET3State *s = VMXNET3(qdev);
2530
2531 if (!(s->compat_flags & VMXNET3_COMPAT_FLAG_DISABLE_PCIE)) {
2532 pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS;
2533 }
2534
2535 vc->parent_dc_realize(qdev, errp);
2536 }
2537
2538 static void vmxnet3_class_init(ObjectClass *class, void *data)
2539 {
2540 DeviceClass *dc = DEVICE_CLASS(class);
2541 PCIDeviceClass *c = PCI_DEVICE_CLASS(class);
2542 VMXNET3Class *vc = VMXNET3_DEVICE_CLASS(class);
2543
2544 c->realize = vmxnet3_pci_realize;
2545 c->exit = vmxnet3_pci_uninit;
2546 c->vendor_id = PCI_VENDOR_ID_VMWARE;
2547 c->device_id = PCI_DEVICE_ID_VMWARE_VMXNET3;
2548 c->revision = PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION;
2549 c->romfile = "efi-vmxnet3.rom";
2550 c->class_id = PCI_CLASS_NETWORK_ETHERNET;
2551 c->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE;
2552 c->subsystem_id = PCI_DEVICE_ID_VMWARE_VMXNET3;
2553 device_class_set_parent_realize(dc, vmxnet3_realize,
2554 &vc->parent_dc_realize);
2555 dc->desc = "VMWare Paravirtualized Ethernet v3";
2556 dc->reset = vmxnet3_qdev_reset;
2557 dc->vmsd = &vmstate_vmxnet3;
2558 dc->props = vmxnet3_properties;
2559 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
2560 }
2561
2562 static const TypeInfo vmxnet3_info = {
2563 .name = TYPE_VMXNET3,
2564 .parent = TYPE_PCI_DEVICE,
2565 .class_size = sizeof(VMXNET3Class),
2566 .instance_size = sizeof(VMXNET3State),
2567 .class_init = vmxnet3_class_init,
2568 .instance_init = vmxnet3_instance_init,
2569 .interfaces = (InterfaceInfo[]) {
2570 { INTERFACE_PCIE_DEVICE },
2571 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
2572 { }
2573 },
2574 };
2575
2576 static void vmxnet3_register_types(void)
2577 {
2578 VMW_CBPRN("vmxnet3_register_types called...");
2579 type_register_static(&vmxnet3_info);
2580 }
2581
2582 type_init(vmxnet3_register_types)
AR7 emulation for QEMU