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Merge remote-tracking branch 'remotes/rth/tcg-next' into staging
[qemu.git] / hw / net / vmxnet3.c
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786fd2b0
DF		 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 <[email protected]>
10 * Tamir Shomer <[email protected]>
11 * Yan Vugenfirer <[email protected]>
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
0d09e41a
PB		 18#include "hw/hw.h"
19#include "hw/pci/pci.h"
786fd2b0 20#include "net/net.h"
786fd2b0
DF		 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"
0d09e41a
PB		 26#include "hw/pci/msix.h"
27#include "hw/pci/msi.h"
786fd2b0
DF		 28
29#include "vmxnet3.h"
30#include "vmxnet_debug.h"
31#include "vmware_utils.h"
32#include "vmxnet_tx_pkt.h"
33#include "vmxnet_rx_pkt.h"
34
35#define PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION 0x1
36#define VMXNET3_MSIX_BAR_SIZE 0x2000
37
38#define VMXNET3_BAR0_IDX (0)
39#define VMXNET3_BAR1_IDX (1)
40#define VMXNET3_MSIX_BAR_IDX (2)
41
42#define VMXNET3_OFF_MSIX_TABLE (0x000)
43#define VMXNET3_OFF_MSIX_PBA (0x800)
44
45/* Link speed in Mbps should be shifted by 16 */
46#define VMXNET3_LINK_SPEED (1000 << 16)
47
48/* Link status: 1 - up, 0 - down. */
49#define VMXNET3_LINK_STATUS_UP 0x1
50
51/* Least significant bit should be set for revision and version */
52#define VMXNET3_DEVICE_VERSION 0x1
53#define VMXNET3_DEVICE_REVISION 0x1
54
55/* Macros for rings descriptors access */
56#define VMXNET3_READ_TX_QUEUE_DESCR8(dpa, field) \
57 (vmw_shmem_ld8(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field)))
58
59#define VMXNET3_WRITE_TX_QUEUE_DESCR8(dpa, field, value) \
60 (vmw_shmem_st8(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field, value)))
61
62#define VMXNET3_READ_TX_QUEUE_DESCR32(dpa, field) \
63 (vmw_shmem_ld32(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field)))
64
65#define VMXNET3_WRITE_TX_QUEUE_DESCR32(dpa, field, value) \
66 (vmw_shmem_st32(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value))
67
68#define VMXNET3_READ_TX_QUEUE_DESCR64(dpa, field) \
69 (vmw_shmem_ld64(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field)))
70
71#define VMXNET3_WRITE_TX_QUEUE_DESCR64(dpa, field, value) \
72 (vmw_shmem_st64(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value))
73
74#define VMXNET3_READ_RX_QUEUE_DESCR64(dpa, field) \
75 (vmw_shmem_ld64(dpa + offsetof(struct Vmxnet3_RxQueueDesc, field)))
76
77#define VMXNET3_READ_RX_QUEUE_DESCR32(dpa, field) \
78 (vmw_shmem_ld32(dpa + offsetof(struct Vmxnet3_RxQueueDesc, field)))
79
80#define VMXNET3_WRITE_RX_QUEUE_DESCR64(dpa, field, value) \
81 (vmw_shmem_st64(dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value))
82
83#define VMXNET3_WRITE_RX_QUEUE_DESCR8(dpa, field, value) \
84 (vmw_shmem_st8(dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value))
85
86/* Macros for guest driver shared area access */
87#define VMXNET3_READ_DRV_SHARED64(shpa, field) \
88 (vmw_shmem_ld64(shpa + offsetof(struct Vmxnet3_DriverShared, field)))
89
90#define VMXNET3_READ_DRV_SHARED32(shpa, field) \
91 (vmw_shmem_ld32(shpa + offsetof(struct Vmxnet3_DriverShared, field)))
92
93#define VMXNET3_WRITE_DRV_SHARED32(shpa, field, val) \
94 (vmw_shmem_st32(shpa + offsetof(struct Vmxnet3_DriverShared, field), val))
95
96#define VMXNET3_READ_DRV_SHARED16(shpa, field) \
97 (vmw_shmem_ld16(shpa + offsetof(struct Vmxnet3_DriverShared, field)))
98
99#define VMXNET3_READ_DRV_SHARED8(shpa, field) \
100 (vmw_shmem_ld8(shpa + offsetof(struct Vmxnet3_DriverShared, field)))
101
102#define VMXNET3_READ_DRV_SHARED(shpa, field, b, l) \
103 (vmw_shmem_read(shpa + offsetof(struct Vmxnet3_DriverShared, field), b, l))
104
105#define VMXNET_FLAG_IS_SET(field, flag) (((field) & (flag)) == (flag))
106
107#define TYPE_VMXNET3 "vmxnet3"
108#define VMXNET3(obj) OBJECT_CHECK(VMXNET3State, (obj), TYPE_VMXNET3)
109
110/* Cyclic ring abstraction */
111typedef struct {
112 hwaddr pa;
113 size_t size;
114 size_t cell_size;
115 size_t next;
116 uint8_t gen;
117} Vmxnet3Ring;
118
119static inline void vmxnet3_ring_init(Vmxnet3Ring *ring,
120 hwaddr pa,
121 size_t size,
122 size_t cell_size,
123 bool zero_region)
124{
125 ring->pa = pa;
126 ring->size = size;
127 ring->cell_size = cell_size;
128 ring->gen = VMXNET3_INIT_GEN;
129 ring->next = 0;
130
131 if (zero_region) {
132 vmw_shmem_set(pa, 0, size * cell_size);
133 }
134}
135
136#define VMXNET3_RING_DUMP(macro, ring_name, ridx, r) \
137 macro("%s#%d: base %" PRIx64 " size %lu cell_size %lu gen %d next %lu", \
138 (ring_name), (ridx), \
139 (r)->pa, (r)->size, (r)->cell_size, (r)->gen, (r)->next)
140
141static inline void vmxnet3_ring_inc(Vmxnet3Ring *ring)
142{
143 if (++ring->next >= ring->size) {
144 ring->next = 0;
145 ring->gen ^= 1;
146 }
147}
148
149static inline void vmxnet3_ring_dec(Vmxnet3Ring *ring)
150{
151 if (ring->next-- == 0) {
152 ring->next = ring->size - 1;
153 ring->gen ^= 1;
154 }
155}
156
157static inline hwaddr vmxnet3_ring_curr_cell_pa(Vmxnet3Ring *ring)
158{
159 return ring->pa + ring->next * ring->cell_size;
160}
161
162static inline void vmxnet3_ring_read_curr_cell(Vmxnet3Ring *ring, void *buff)
163{
164 vmw_shmem_read(vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size);
165}
166
167static inline void vmxnet3_ring_write_curr_cell(Vmxnet3Ring *ring, void *buff)
168{
169 vmw_shmem_write(vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size);
170}
171
172static inline size_t vmxnet3_ring_curr_cell_idx(Vmxnet3Ring *ring)
173{
174 return ring->next;
175}
176
177static inline uint8_t vmxnet3_ring_curr_gen(Vmxnet3Ring *ring)
178{
179 return ring->gen;
180}
181
182/* Debug trace-related functions */
183static inline void
184vmxnet3_dump_tx_descr(struct Vmxnet3_TxDesc *descr)
185{
186 VMW_PKPRN("TX DESCR: "
187 "addr %" PRIx64 ", len: %d, gen: %d, rsvd: %d, "
188 "dtype: %d, ext1: %d, msscof: %d, hlen: %d, om: %d, "
189 "eop: %d, cq: %d, ext2: %d, ti: %d, tci: %d",
190 le64_to_cpu(descr->addr), descr->len, descr->gen, descr->rsvd,
191 descr->dtype, descr->ext1, descr->msscof, descr->hlen, descr->om,
192 descr->eop, descr->cq, descr->ext2, descr->ti, descr->tci);
193}
194
195static inline void
196vmxnet3_dump_virt_hdr(struct virtio_net_hdr *vhdr)
197{
198 VMW_PKPRN("VHDR: flags 0x%x, gso_type: 0x%x, hdr_len: %d, gso_size: %d, "
199 "csum_start: %d, csum_offset: %d",
200 vhdr->flags, vhdr->gso_type, vhdr->hdr_len, vhdr->gso_size,
201 vhdr->csum_start, vhdr->csum_offset);
202}
203
204static inline void
205vmxnet3_dump_rx_descr(struct Vmxnet3_RxDesc *descr)
206{
207 VMW_PKPRN("RX DESCR: addr %" PRIx64 ", len: %d, gen: %d, rsvd: %d, "
208 "dtype: %d, ext1: %d, btype: %d",
209 le64_to_cpu(descr->addr), descr->len, descr->gen,
210 descr->rsvd, descr->dtype, descr->ext1, descr->btype);
211}
212
213/* Device state and helper functions */
214#define VMXNET3_RX_RINGS_PER_QUEUE (2)
215
216typedef struct {
217 Vmxnet3Ring tx_ring;
218 Vmxnet3Ring comp_ring;
219
220 uint8_t intr_idx;
221 hwaddr tx_stats_pa;
222 struct UPT1_TxStats txq_stats;
223} Vmxnet3TxqDescr;
224
225typedef struct {
226 Vmxnet3Ring rx_ring[VMXNET3_RX_RINGS_PER_QUEUE];
227 Vmxnet3Ring comp_ring;
228 uint8_t intr_idx;
229 hwaddr rx_stats_pa;
230 struct UPT1_RxStats rxq_stats;
231} Vmxnet3RxqDescr;
232
233typedef struct {
234 bool is_masked;
235 bool is_pending;
236 bool is_asserted;
237} Vmxnet3IntState;
238
239typedef struct {
240 PCIDevice parent_obj;
241 NICState *nic;
242 NICConf conf;
243 MemoryRegion bar0;
244 MemoryRegion bar1;
245 MemoryRegion msix_bar;
246
247 Vmxnet3RxqDescr rxq_descr[VMXNET3_DEVICE_MAX_RX_QUEUES];
248 Vmxnet3TxqDescr txq_descr[VMXNET3_DEVICE_MAX_TX_QUEUES];
249
250 /* Whether MSI-X support was installed successfully */
251 bool msix_used;
252 /* Whether MSI support was installed successfully */
253 bool msi_used;
254 hwaddr drv_shmem;
255 hwaddr temp_shared_guest_driver_memory;
256
257 uint8_t txq_num;
258
259 /* This boolean tells whether RX packet being indicated has to */
260 /* be split into head and body chunks from different RX rings */
261 bool rx_packets_compound;
262
263 bool rx_vlan_stripping;
264 bool lro_supported;
265
266 uint8_t rxq_num;
267
268 /* Network MTU */
269 uint32_t mtu;
270
271 /* Maximum number of fragments for indicated TX packets */
272 uint32_t max_tx_frags;
273
274 /* Maximum number of fragments for indicated RX packets */
275 uint16_t max_rx_frags;
276
277 /* Index for events interrupt */
278 uint8_t event_int_idx;
279
280 /* Whether automatic interrupts masking enabled */
281 bool auto_int_masking;
282
283 bool peer_has_vhdr;
284
285 /* TX packets to QEMU interface */
286 struct VmxnetTxPkt *tx_pkt;
287 uint32_t offload_mode;
288 uint32_t cso_or_gso_size;
289 uint16_t tci;
290 bool needs_vlan;
291
292 struct VmxnetRxPkt *rx_pkt;
293
294 bool tx_sop;
295 bool skip_current_tx_pkt;
296
297 uint32_t device_active;
298 uint32_t last_command;
299
300 uint32_t link_status_and_speed;
301
302 Vmxnet3IntState interrupt_states[VMXNET3_MAX_INTRS];
303
304 uint32_t temp_mac; /* To store the low part first */
305
306 MACAddr perm_mac;
307 uint32_t vlan_table[VMXNET3_VFT_SIZE];
308 uint32_t rx_mode;
309 MACAddr *mcast_list;
310 uint32_t mcast_list_len;
311 uint32_t mcast_list_buff_size; /* needed for live migration. */
312} VMXNET3State;
313
314/* Interrupt management */
315
316/*
317 *This function returns sign whether interrupt line is in asserted state
318 * This depends on the type of interrupt used. For INTX interrupt line will
319 * be asserted until explicit deassertion, for MSI(X) interrupt line will
320 * be deasserted automatically due to notification semantics of the MSI(X)
321 * interrupts
322 */
323static bool _vmxnet3_assert_interrupt_line(VMXNET3State *s, uint32_t int_idx)
324{
325 PCIDevice *d = PCI_DEVICE(s);
326
327 if (s->msix_used && msix_enabled(d)) {
328 VMW_IRPRN("Sending MSI-X notification for vector %u", int_idx);
329 msix_notify(d, int_idx);
330 return false;
331 }
332 if (s->msi_used && msi_enabled(d)) {
333 VMW_IRPRN("Sending MSI notification for vector %u", int_idx);
334 msi_notify(d, int_idx);
335 return false;
336 }
337
338 VMW_IRPRN("Asserting line for interrupt %u", int_idx);
4c89e3e5 339 pci_irq_assert(d);
786fd2b0
DF		 340 return true;
341}
342
343static void _vmxnet3_deassert_interrupt_line(VMXNET3State *s, int lidx)
344{
345 PCIDevice *d = PCI_DEVICE(s);
346
347 /*
348 * This function should never be called for MSI(X) interrupts
349 * because deassertion never required for message interrupts
350 */
351 assert(!s->msix_used || !msix_enabled(d));
352 /*
353 * This function should never be called for MSI(X) interrupts
354 * because deassertion never required for message interrupts
355 */
356 assert(!s->msi_used || !msi_enabled(d));
357
358 VMW_IRPRN("Deasserting line for interrupt %u", lidx);
4c89e3e5 359 pci_irq_deassert(d);
786fd2b0
DF		 360}
361
362static void vmxnet3_update_interrupt_line_state(VMXNET3State *s, int lidx)
363{
364 if (!s->interrupt_states[lidx].is_pending &&
365 s->interrupt_states[lidx].is_asserted) {
366 VMW_IRPRN("New interrupt line state for index %d is DOWN", lidx);
367 _vmxnet3_deassert_interrupt_line(s, lidx);
368 s->interrupt_states[lidx].is_asserted = false;
369 return;
370 }
371
372 if (s->interrupt_states[lidx].is_pending &&
373 !s->interrupt_states[lidx].is_masked &&
374 !s->interrupt_states[lidx].is_asserted) {
375 VMW_IRPRN("New interrupt line state for index %d is UP", lidx);
376 s->interrupt_states[lidx].is_asserted =
377 _vmxnet3_assert_interrupt_line(s, lidx);
378 s->interrupt_states[lidx].is_pending = false;
379 return;
380 }
381}
382
383static void vmxnet3_trigger_interrupt(VMXNET3State *s, int lidx)
384{
385 PCIDevice *d = PCI_DEVICE(s);
386 s->interrupt_states[lidx].is_pending = true;
387 vmxnet3_update_interrupt_line_state(s, lidx);
388
389 if (s->msix_used && msix_enabled(d) && s->auto_int_masking) {
390 goto do_automask;
391 }
392
393 if (s->msi_used && msi_enabled(d) && s->auto_int_masking) {
394 goto do_automask;
395 }
396
397 return;
398
399do_automask:
400 s->interrupt_states[lidx].is_masked = true;
401 vmxnet3_update_interrupt_line_state(s, lidx);
402}
403
404static bool vmxnet3_interrupt_asserted(VMXNET3State *s, int lidx)
405{
406 return s->interrupt_states[lidx].is_asserted;
407}
408
409static void vmxnet3_clear_interrupt(VMXNET3State *s, int int_idx)
410{
411 s->interrupt_states[int_idx].is_pending = false;
412 if (s->auto_int_masking) {
413 s->interrupt_states[int_idx].is_masked = true;
414 }
415 vmxnet3_update_interrupt_line_state(s, int_idx);
416}
417
418static void
419vmxnet3_on_interrupt_mask_changed(VMXNET3State *s, int lidx, bool is_masked)
420{
421 s->interrupt_states[lidx].is_masked = is_masked;
422 vmxnet3_update_interrupt_line_state(s, lidx);
423}
424
425static bool vmxnet3_verify_driver_magic(hwaddr dshmem)
426{
427 return (VMXNET3_READ_DRV_SHARED32(dshmem, magic) == VMXNET3_REV1_MAGIC);
428}
429
430#define VMXNET3_GET_BYTE(x, byte_num) (((x) >> (byte_num)*8) & 0xFF)
431#define VMXNET3_MAKE_BYTE(byte_num, val) \
432 (((uint32_t)((val) & 0xFF)) << (byte_num)*8)
433
434static void vmxnet3_set_variable_mac(VMXNET3State *s, uint32_t h, uint32_t l)
435{
436 s->conf.macaddr.a[0] = VMXNET3_GET_BYTE(l, 0);
437 s->conf.macaddr.a[1] = VMXNET3_GET_BYTE(l, 1);
438 s->conf.macaddr.a[2] = VMXNET3_GET_BYTE(l, 2);
439 s->conf.macaddr.a[3] = VMXNET3_GET_BYTE(l, 3);
440 s->conf.macaddr.a[4] = VMXNET3_GET_BYTE(h, 0);
441 s->conf.macaddr.a[5] = VMXNET3_GET_BYTE(h, 1);
442
443 VMW_CFPRN("Variable MAC: " VMXNET_MF, VMXNET_MA(s->conf.macaddr.a));
444
445 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
446}
447
448static uint64_t vmxnet3_get_mac_low(MACAddr *addr)
449{
450 return VMXNET3_MAKE_BYTE(0, addr->a[0]) |
451 VMXNET3_MAKE_BYTE(1, addr->a[1]) |
452 VMXNET3_MAKE_BYTE(2, addr->a[2]) |
453 VMXNET3_MAKE_BYTE(3, addr->a[3]);
454}
455
456static uint64_t vmxnet3_get_mac_high(MACAddr *addr)
457{
458 return VMXNET3_MAKE_BYTE(0, addr->a[4]) |
459 VMXNET3_MAKE_BYTE(1, addr->a[5]);
460}
461
462static void
463vmxnet3_inc_tx_consumption_counter(VMXNET3State *s, int qidx)
464{
465 vmxnet3_ring_inc(&s->txq_descr[qidx].tx_ring);
466}
467
468static inline void
469vmxnet3_inc_rx_consumption_counter(VMXNET3State *s, int qidx, int ridx)
470{
471 vmxnet3_ring_inc(&s->rxq_descr[qidx].rx_ring[ridx]);
472}
473
474static inline void
475vmxnet3_inc_tx_completion_counter(VMXNET3State *s, int qidx)
476{
477 vmxnet3_ring_inc(&s->txq_descr[qidx].comp_ring);
478}
479
480static void
481vmxnet3_inc_rx_completion_counter(VMXNET3State *s, int qidx)
482{
483 vmxnet3_ring_inc(&s->rxq_descr[qidx].comp_ring);
484}
485
486static void
487vmxnet3_dec_rx_completion_counter(VMXNET3State *s, int qidx)
488{
489 vmxnet3_ring_dec(&s->rxq_descr[qidx].comp_ring);
490}
491
492static void vmxnet3_complete_packet(VMXNET3State *s, int qidx, uint32 tx_ridx)
493{
494 struct Vmxnet3_TxCompDesc txcq_descr;
495
496 VMXNET3_RING_DUMP(VMW_RIPRN, "TXC", qidx, &s->txq_descr[qidx].comp_ring);
497
498 txcq_descr.txdIdx = tx_ridx;
499 txcq_descr.gen = vmxnet3_ring_curr_gen(&s->txq_descr[qidx].comp_ring);
500
501 vmxnet3_ring_write_curr_cell(&s->txq_descr[qidx].comp_ring, &txcq_descr);
502
503 /* Flush changes in TX descriptor before changing the counter value */
504 smp_wmb();
505
506 vmxnet3_inc_tx_completion_counter(s, qidx);
507 vmxnet3_trigger_interrupt(s, s->txq_descr[qidx].intr_idx);
508}
509
510static bool
511vmxnet3_setup_tx_offloads(VMXNET3State *s)
512{
513 switch (s->offload_mode) {
514 case VMXNET3_OM_NONE:
515 vmxnet_tx_pkt_build_vheader(s->tx_pkt, false, false, 0);
516 break;
517
518 case VMXNET3_OM_CSUM:
519 vmxnet_tx_pkt_build_vheader(s->tx_pkt, false, true, 0);
520 VMW_PKPRN("L4 CSO requested\n");
521 break;
522
523 case VMXNET3_OM_TSO:
524 vmxnet_tx_pkt_build_vheader(s->tx_pkt, true, true,
525 s->cso_or_gso_size);
526 vmxnet_tx_pkt_update_ip_checksums(s->tx_pkt);
527 VMW_PKPRN("GSO offload requested.");
528 break;
529
530 default:
dfc6f865 531 g_assert_not_reached();
786fd2b0
DF		 532 return false;
533 }
534
535 return true;
536}
537
538static void
539vmxnet3_tx_retrieve_metadata(VMXNET3State *s,
540 const struct Vmxnet3_TxDesc *txd)
541{
542 s->offload_mode = txd->om;
543 s->cso_or_gso_size = txd->msscof;
544 s->tci = txd->tci;
545 s->needs_vlan = txd->ti;
546}
547
548typedef enum {
549 VMXNET3_PKT_STATUS_OK,
550 VMXNET3_PKT_STATUS_ERROR,
551 VMXNET3_PKT_STATUS_DISCARD,/* only for tx */
552 VMXNET3_PKT_STATUS_OUT_OF_BUF /* only for rx */
553} Vmxnet3PktStatus;
554
555static void
556vmxnet3_on_tx_done_update_stats(VMXNET3State *s, int qidx,
557 Vmxnet3PktStatus status)
558{
559 size_t tot_len = vmxnet_tx_pkt_get_total_len(s->tx_pkt);
560 struct UPT1_TxStats *stats = &s->txq_descr[qidx].txq_stats;
561
562 switch (status) {
563 case VMXNET3_PKT_STATUS_OK:
564 switch (vmxnet_tx_pkt_get_packet_type(s->tx_pkt)) {
565 case ETH_PKT_BCAST:
566 stats->bcastPktsTxOK++;
567 stats->bcastBytesTxOK += tot_len;
568 break;
569 case ETH_PKT_MCAST:
570 stats->mcastPktsTxOK++;
571 stats->mcastBytesTxOK += tot_len;
572 break;
573 case ETH_PKT_UCAST:
574 stats->ucastPktsTxOK++;
575 stats->ucastBytesTxOK += tot_len;
576 break;
577 default:
dfc6f865 578 g_assert_not_reached();
786fd2b0
DF		 579 }
580
581 if (s->offload_mode == VMXNET3_OM_TSO) {
582 /*
583 * According to VMWARE headers this statistic is a number
584 * of packets after segmentation but since we don't have
585 * this information in QEMU model, the best we can do is to
586 * provide number of non-segmented packets
587 */
588 stats->TSOPktsTxOK++;
589 stats->TSOBytesTxOK += tot_len;
590 }
591 break;
592
593 case VMXNET3_PKT_STATUS_DISCARD:
594 stats->pktsTxDiscard++;
595 break;
596
597 case VMXNET3_PKT_STATUS_ERROR:
598 stats->pktsTxError++;
599 break;
600
601 default:
dfc6f865 602 g_assert_not_reached();
786fd2b0
DF		 603 }
604}
605
606static void
607vmxnet3_on_rx_done_update_stats(VMXNET3State *s,
608 int qidx,
609 Vmxnet3PktStatus status)
610{
611 struct UPT1_RxStats *stats = &s->rxq_descr[qidx].rxq_stats;
612 size_t tot_len = vmxnet_rx_pkt_get_total_len(s->rx_pkt);
613
614 switch (status) {
615 case VMXNET3_PKT_STATUS_OUT_OF_BUF:
616 stats->pktsRxOutOfBuf++;
617 break;
618
619 case VMXNET3_PKT_STATUS_ERROR:
620 stats->pktsRxError++;
621 break;
622 case VMXNET3_PKT_STATUS_OK:
623 switch (vmxnet_rx_pkt_get_packet_type(s->rx_pkt)) {
624 case ETH_PKT_BCAST:
625 stats->bcastPktsRxOK++;
626 stats->bcastBytesRxOK += tot_len;
627 break;
628 case ETH_PKT_MCAST:
629 stats->mcastPktsRxOK++;
630 stats->mcastBytesRxOK += tot_len;
631 break;
632 case ETH_PKT_UCAST:
633 stats->ucastPktsRxOK++;
634 stats->ucastBytesRxOK += tot_len;
635 break;
636 default:
dfc6f865 637 g_assert_not_reached();
786fd2b0
DF		 638 }
639
640 if (tot_len > s->mtu) {
641 stats->LROPktsRxOK++;
642 stats->LROBytesRxOK += tot_len;
643 }
644 break;
645 default:
dfc6f865 646 g_assert_not_reached();
786fd2b0
DF		 647 }
648}
649
650static inline bool
651vmxnet3_pop_next_tx_descr(VMXNET3State *s,
652 int qidx,
653 struct Vmxnet3_TxDesc *txd,
654 uint32_t *descr_idx)
655{
656 Vmxnet3Ring *ring = &s->txq_descr[qidx].tx_ring;
657
658 vmxnet3_ring_read_curr_cell(ring, txd);
659 if (txd->gen == vmxnet3_ring_curr_gen(ring)) {
660 /* Only read after generation field verification */
661 smp_rmb();
662 /* Re-read to be sure we got the latest version */
663 vmxnet3_ring_read_curr_cell(ring, txd);
664 VMXNET3_RING_DUMP(VMW_RIPRN, "TX", qidx, ring);
665 *descr_idx = vmxnet3_ring_curr_cell_idx(ring);
666 vmxnet3_inc_tx_consumption_counter(s, qidx);
667 return true;
668 }
669
670 return false;
671}
672
673static bool
674vmxnet3_send_packet(VMXNET3State *s, uint32_t qidx)
675{
676 Vmxnet3PktStatus status = VMXNET3_PKT_STATUS_OK;
677
678 if (!vmxnet3_setup_tx_offloads(s)) {
679 status = VMXNET3_PKT_STATUS_ERROR;
680 goto func_exit;
681 }
682
683 /* debug prints */
684 vmxnet3_dump_virt_hdr(vmxnet_tx_pkt_get_vhdr(s->tx_pkt));
685 vmxnet_tx_pkt_dump(s->tx_pkt);
686
687 if (!vmxnet_tx_pkt_send(s->tx_pkt, qemu_get_queue(s->nic))) {
688 status = VMXNET3_PKT_STATUS_DISCARD;
689 goto func_exit;
690 }
691
692func_exit:
693 vmxnet3_on_tx_done_update_stats(s, qidx, status);
694 return (status == VMXNET3_PKT_STATUS_OK);
695}
696
697static void vmxnet3_process_tx_queue(VMXNET3State *s, int qidx)
698{
699 struct Vmxnet3_TxDesc txd;
700 uint32_t txd_idx;
701 uint32_t data_len;
702 hwaddr data_pa;
703
704 for (;;) {
705 if (!vmxnet3_pop_next_tx_descr(s, qidx, &txd, &txd_idx)) {
706 break;
707 }
708
709 vmxnet3_dump_tx_descr(&txd);
710
711 if (!s->skip_current_tx_pkt) {
712 data_len = (txd.len > 0) ? txd.len : VMXNET3_MAX_TX_BUF_SIZE;
713 data_pa = le64_to_cpu(txd.addr);
714
715 if (!vmxnet_tx_pkt_add_raw_fragment(s->tx_pkt,
716 data_pa,
717 data_len)) {
718 s->skip_current_tx_pkt = true;
719 }
720 }
721
722 if (s->tx_sop) {
723 vmxnet3_tx_retrieve_metadata(s, &txd);
724 s->tx_sop = false;
725 }
726
727 if (txd.eop) {
728 if (!s->skip_current_tx_pkt) {
729 vmxnet_tx_pkt_parse(s->tx_pkt);
730
731 if (s->needs_vlan) {
732 vmxnet_tx_pkt_setup_vlan_header(s->tx_pkt, s->tci);
733 }
734
735 vmxnet3_send_packet(s, qidx);
736 } else {
737 vmxnet3_on_tx_done_update_stats(s, qidx,
738 VMXNET3_PKT_STATUS_ERROR);
739 }
740
741 vmxnet3_complete_packet(s, qidx, txd_idx);
742 s->tx_sop = true;
743 s->skip_current_tx_pkt = false;
744 vmxnet_tx_pkt_reset(s->tx_pkt);
745 }
746 }
747}
748
749static inline void
750vmxnet3_read_next_rx_descr(VMXNET3State *s, int qidx, int ridx,
751 struct Vmxnet3_RxDesc *dbuf, uint32_t *didx)
752{
753 Vmxnet3Ring *ring = &s->rxq_descr[qidx].rx_ring[ridx];
754 *didx = vmxnet3_ring_curr_cell_idx(ring);
755 vmxnet3_ring_read_curr_cell(ring, dbuf);
756}
757
758static inline uint8_t
759vmxnet3_get_rx_ring_gen(VMXNET3State *s, int qidx, int ridx)
760{
761 return s->rxq_descr[qidx].rx_ring[ridx].gen;
762}
763
764static inline hwaddr
765vmxnet3_pop_rxc_descr(VMXNET3State *s, int qidx, uint32_t *descr_gen)
766{
767 uint8_t ring_gen;
768 struct Vmxnet3_RxCompDesc rxcd;
769
770 hwaddr daddr =
771 vmxnet3_ring_curr_cell_pa(&s->rxq_descr[qidx].comp_ring);
772
773 cpu_physical_memory_read(daddr, &rxcd, sizeof(struct Vmxnet3_RxCompDesc));
774 ring_gen = vmxnet3_ring_curr_gen(&s->rxq_descr[qidx].comp_ring);
775
776 if (rxcd.gen != ring_gen) {
777 *descr_gen = ring_gen;
778 vmxnet3_inc_rx_completion_counter(s, qidx);
779 return daddr;
780 }
781
782 return 0;
783}
784
785static inline void
786vmxnet3_revert_rxc_descr(VMXNET3State *s, int qidx)
787{
788 vmxnet3_dec_rx_completion_counter(s, qidx);
789}
790
791#define RXQ_IDX (0)
792#define RX_HEAD_BODY_RING (0)
793#define RX_BODY_ONLY_RING (1)
794
795static bool
796vmxnet3_get_next_head_rx_descr(VMXNET3State *s,
797 struct Vmxnet3_RxDesc *descr_buf,
798 uint32_t *descr_idx,
799 uint32_t *ridx)
800{
801 for (;;) {
802 uint32_t ring_gen;
803 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING,
804 descr_buf, descr_idx);
805
806 /* If no more free descriptors - return */
807 ring_gen = vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_HEAD_BODY_RING);
808 if (descr_buf->gen != ring_gen) {
809 return false;
810 }
811
812 /* Only read after generation field verification */
813 smp_rmb();
814 /* Re-read to be sure we got the latest version */
815 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING,
816 descr_buf, descr_idx);
817
818 /* Mark current descriptor as used/skipped */
819 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_HEAD_BODY_RING);
820
821 /* If this is what we are looking for - return */
822 if (descr_buf->btype == VMXNET3_RXD_BTYPE_HEAD) {
823 *ridx = RX_HEAD_BODY_RING;
824 return true;
825 }
826 }
827}
828
829static bool
830vmxnet3_get_next_body_rx_descr(VMXNET3State *s,
831 struct Vmxnet3_RxDesc *d,
832 uint32_t *didx,
833 uint32_t *ridx)
834{
835 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, d, didx);
836
837 /* Try to find corresponding descriptor in head/body ring */
838 if (d->gen == vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_HEAD_BODY_RING)) {
839 /* Only read after generation field verification */
840 smp_rmb();
841 /* Re-read to be sure we got the latest version */
842 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, d, didx);
843 if (d->btype == VMXNET3_RXD_BTYPE_BODY) {
844 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_HEAD_BODY_RING);
845 *ridx = RX_HEAD_BODY_RING;
846 return true;
847 }
848 }
849
850 /*
851 * If there is no free descriptors on head/body ring or next free
852 * descriptor is a head descriptor switch to body only ring
853 */
854 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_BODY_ONLY_RING, d, didx);
855
856 /* If no more free descriptors - return */
857 if (d->gen == vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_BODY_ONLY_RING)) {
858 /* Only read after generation field verification */
859 smp_rmb();
860 /* Re-read to be sure we got the latest version */
861 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_BODY_ONLY_RING, d, didx);
862 assert(d->btype == VMXNET3_RXD_BTYPE_BODY);
863 *ridx = RX_BODY_ONLY_RING;
864 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_BODY_ONLY_RING);
865 return true;
866 }
867
868 return false;
869}
870
871static inline bool
872vmxnet3_get_next_rx_descr(VMXNET3State *s, bool is_head,
873 struct Vmxnet3_RxDesc *descr_buf,
874 uint32_t *descr_idx,
875 uint32_t *ridx)
876{
877 if (is_head || !s->rx_packets_compound) {
878 return vmxnet3_get_next_head_rx_descr(s, descr_buf, descr_idx, ridx);
879 } else {
880 return vmxnet3_get_next_body_rx_descr(s, descr_buf, descr_idx, ridx);
881 }
882}
883
884static void vmxnet3_rx_update_descr(struct VmxnetRxPkt *pkt,
885 struct Vmxnet3_RxCompDesc *rxcd)
886{
887 int csum_ok, is_gso;
888 bool isip4, isip6, istcp, isudp;
889 struct virtio_net_hdr *vhdr;
890 uint8_t offload_type;
891
892 if (vmxnet_rx_pkt_is_vlan_stripped(pkt)) {
893 rxcd->ts = 1;
894 rxcd->tci = vmxnet_rx_pkt_get_vlan_tag(pkt);
895 }
896
897 if (!vmxnet_rx_pkt_has_virt_hdr(pkt)) {
898 goto nocsum;
899 }
900
901 vhdr = vmxnet_rx_pkt_get_vhdr(pkt);
902 /*
903 * Checksum is valid when lower level tell so or when lower level
904 * requires checksum offload telling that packet produced/bridged
905 * locally and did travel over network after last checksum calculation
906 * or production
907 */
908 csum_ok = VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_DATA_VALID) ||
909 VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_NEEDS_CSUM);
910
911 offload_type = vhdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN;
912 is_gso = (offload_type != VIRTIO_NET_HDR_GSO_NONE) ? 1 : 0;
913
914 if (!csum_ok && !is_gso) {
915 goto nocsum;
916 }
917
918 vmxnet_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp);
919 if ((!istcp && !isudp) || (!isip4 && !isip6)) {
920 goto nocsum;
921 }
922
923 rxcd->cnc = 0;
924 rxcd->v4 = isip4 ? 1 : 0;
925 rxcd->v6 = isip6 ? 1 : 0;
926 rxcd->tcp = istcp ? 1 : 0;
927 rxcd->udp = isudp ? 1 : 0;
928 rxcd->fcs = rxcd->tuc = rxcd->ipc = 1;
929 return;
930
931nocsum:
932 rxcd->cnc = 1;
933 return;
934}
935
936static void
937vmxnet3_physical_memory_writev(const struct iovec *iov,
938 size_t start_iov_off,
939 hwaddr target_addr,
940 size_t bytes_to_copy)
941{
942 size_t curr_off = 0;
943 size_t copied = 0;
944
945 while (bytes_to_copy) {
946 if (start_iov_off < (curr_off + iov->iov_len)) {
947 size_t chunk_len =
948 MIN((curr_off + iov->iov_len) - start_iov_off, bytes_to_copy);
949
950 cpu_physical_memory_write(target_addr + copied,
951 iov->iov_base + start_iov_off - curr_off,
952 chunk_len);
953
954 copied += chunk_len;
955 start_iov_off += chunk_len;
956 curr_off = start_iov_off;
957 bytes_to_copy -= chunk_len;
958 } else {
959 curr_off += iov->iov_len;
960 }
961 iov++;
962 }
963}
964
965static bool
966vmxnet3_indicate_packet(VMXNET3State *s)
967{
968 struct Vmxnet3_RxDesc rxd;
969 bool is_head = true;
970 uint32_t rxd_idx;
c707582b 971 uint32_t rx_ridx = 0;
786fd2b0
DF		 972
973 struct Vmxnet3_RxCompDesc rxcd;
974 uint32_t new_rxcd_gen = VMXNET3_INIT_GEN;
975 hwaddr new_rxcd_pa = 0;
976 hwaddr ready_rxcd_pa = 0;
977 struct iovec *data = vmxnet_rx_pkt_get_iovec(s->rx_pkt);
978 size_t bytes_copied = 0;
979 size_t bytes_left = vmxnet_rx_pkt_get_total_len(s->rx_pkt);
980 uint16_t num_frags = 0;
981 size_t chunk_size;
982
983 vmxnet_rx_pkt_dump(s->rx_pkt);
984
985 while (bytes_left > 0) {
986
987 /* cannot add more frags to packet */
988 if (num_frags == s->max_rx_frags) {
989 break;
990 }
991
992 new_rxcd_pa = vmxnet3_pop_rxc_descr(s, RXQ_IDX, &new_rxcd_gen);
993 if (!new_rxcd_pa) {
994 break;
995 }
996
997 if (!vmxnet3_get_next_rx_descr(s, is_head, &rxd, &rxd_idx, &rx_ridx)) {
998 break;
999 }
1000
1001 chunk_size = MIN(bytes_left, rxd.len);
1002 vmxnet3_physical_memory_writev(data, bytes_copied,
1003 le64_to_cpu(rxd.addr), chunk_size);
1004 bytes_copied += chunk_size;
1005 bytes_left -= chunk_size;
1006
1007 vmxnet3_dump_rx_descr(&rxd);
1008
1009 if (0 != ready_rxcd_pa) {
1010 cpu_physical_memory_write(ready_rxcd_pa, &rxcd, sizeof(rxcd));
1011 }
1012
1013 memset(&rxcd, 0, sizeof(struct Vmxnet3_RxCompDesc));
1014 rxcd.rxdIdx = rxd_idx;
1015 rxcd.len = chunk_size;
1016 rxcd.sop = is_head;
1017 rxcd.gen = new_rxcd_gen;
1018 rxcd.rqID = RXQ_IDX + rx_ridx * s->rxq_num;
1019
1020 if (0 == bytes_left) {
1021 vmxnet3_rx_update_descr(s->rx_pkt, &rxcd);
1022 }
1023
1024 VMW_RIPRN("RX Completion descriptor: rxRing: %lu rxIdx %lu len %lu "
1025 "sop %d csum_correct %lu",
1026 (unsigned long) rx_ridx,
1027 (unsigned long) rxcd.rxdIdx,
1028 (unsigned long) rxcd.len,
1029 (int) rxcd.sop,
1030 (unsigned long) rxcd.tuc);
1031
1032 is_head = false;
1033 ready_rxcd_pa = new_rxcd_pa;
1034 new_rxcd_pa = 0;
3e948fd3 1035 num_frags++;
786fd2b0
DF		 1036 }
1037
1038 if (0 != ready_rxcd_pa) {
1039 rxcd.eop = 1;
1040 rxcd.err = (0 != bytes_left);
1041 cpu_physical_memory_write(ready_rxcd_pa, &rxcd, sizeof(rxcd));
1042
1043 /* Flush RX descriptor changes */
1044 smp_wmb();
1045 }
1046
1047 if (0 != new_rxcd_pa) {
1048 vmxnet3_revert_rxc_descr(s, RXQ_IDX);
1049 }
1050
1051 vmxnet3_trigger_interrupt(s, s->rxq_descr[RXQ_IDX].intr_idx);
1052
1053 if (bytes_left == 0) {
1054 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, VMXNET3_PKT_STATUS_OK);
1055 return true;
1056 } else if (num_frags == s->max_rx_frags) {
1057 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, VMXNET3_PKT_STATUS_ERROR);
1058 return false;
1059 } else {
1060 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX,
1061 VMXNET3_PKT_STATUS_OUT_OF_BUF);
1062 return false;
1063 }
1064}
1065
1066static void
1067vmxnet3_io_bar0_write(void *opaque, hwaddr addr,
1068 uint64_t val, unsigned size)
1069{
1070 VMXNET3State *s = opaque;
1071
1072 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_TXPROD,
1073 VMXNET3_DEVICE_MAX_TX_QUEUES, VMXNET3_REG_ALIGN)) {
1074 int tx_queue_idx =
1075 VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_TXPROD,
1076 VMXNET3_REG_ALIGN);
1077 assert(tx_queue_idx <= s->txq_num);
1078 vmxnet3_process_tx_queue(s, tx_queue_idx);
1079 return;
1080 }
1081
1082 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_IMR,
1083 VMXNET3_MAX_INTRS, VMXNET3_REG_ALIGN)) {
1084 int l = VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_IMR,
1085 VMXNET3_REG_ALIGN);
1086
1087 VMW_CBPRN("Interrupt mask for line %d written: 0x%" PRIx64, l, val);
1088
1089 vmxnet3_on_interrupt_mask_changed(s, l, val);
1090 return;
1091 }
1092
1093 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_RXPROD,
1094 VMXNET3_DEVICE_MAX_RX_QUEUES, VMXNET3_REG_ALIGN) ||
1095 VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_RXPROD2,
1096 VMXNET3_DEVICE_MAX_RX_QUEUES, VMXNET3_REG_ALIGN)) {
1097 return;
1098 }
1099
1100 VMW_WRPRN("BAR0 unknown write [%" PRIx64 "] = %" PRIx64 ", size %d",
1101 (uint64_t) addr, val, size);
1102}
1103
1104static uint64_t
1105vmxnet3_io_bar0_read(void *opaque, hwaddr addr, unsigned size)
1106{
1107 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_IMR,
1108 VMXNET3_MAX_INTRS, VMXNET3_REG_ALIGN)) {
dfc6f865 1109 g_assert_not_reached();
786fd2b0
DF		 1110 }
1111
1112 VMW_CBPRN("BAR0 unknown read [%" PRIx64 "], size %d", addr, size);
1113 return 0;
1114}
1115
1116static void vmxnet3_reset_interrupt_states(VMXNET3State *s)
1117{
1118 int i;
1119 for (i = 0; i < ARRAY_SIZE(s->interrupt_states); i++) {
1120 s->interrupt_states[i].is_asserted = false;
1121 s->interrupt_states[i].is_pending = false;
1122 s->interrupt_states[i].is_masked = true;
1123 }
1124}
1125
1126static void vmxnet3_reset_mac(VMXNET3State *s)
1127{
1128 memcpy(&s->conf.macaddr.a, &s->perm_mac.a, sizeof(s->perm_mac.a));
1129 VMW_CFPRN("MAC address set to: " VMXNET_MF, VMXNET_MA(s->conf.macaddr.a));
1130}
1131
1132static void vmxnet3_deactivate_device(VMXNET3State *s)
1133{
1134 VMW_CBPRN("Deactivating vmxnet3...");
1135 s->device_active = false;
1136}
1137
1138static void vmxnet3_reset(VMXNET3State *s)
1139{
1140 VMW_CBPRN("Resetting vmxnet3...");
1141
1142 vmxnet3_deactivate_device(s);
1143 vmxnet3_reset_interrupt_states(s);
1144 vmxnet_tx_pkt_reset(s->tx_pkt);
1145 s->drv_shmem = 0;
1146 s->tx_sop = true;
1147 s->skip_current_tx_pkt = false;
1148}
1149
1150static void vmxnet3_update_rx_mode(VMXNET3State *s)
1151{
1152 s->rx_mode = VMXNET3_READ_DRV_SHARED32(s->drv_shmem,
1153 devRead.rxFilterConf.rxMode);
1154 VMW_CFPRN("RX mode: 0x%08X", s->rx_mode);
1155}
1156
1157static void vmxnet3_update_vlan_filters(VMXNET3State *s)
1158{
1159 int i;
1160
1161 /* Copy configuration from shared memory */
1162 VMXNET3_READ_DRV_SHARED(s->drv_shmem,
1163 devRead.rxFilterConf.vfTable,
1164 s->vlan_table,
1165 sizeof(s->vlan_table));
1166
1167 /* Invert byte order when needed */
1168 for (i = 0; i < ARRAY_SIZE(s->vlan_table); i++) {
1169 s->vlan_table[i] = le32_to_cpu(s->vlan_table[i]);
1170 }
1171
1172 /* Dump configuration for debugging purposes */
1173 VMW_CFPRN("Configured VLANs:");
1174 for (i = 0; i < sizeof(s->vlan_table) * 8; i++) {
1175 if (VMXNET3_VFTABLE_ENTRY_IS_SET(s->vlan_table, i)) {
1176 VMW_CFPRN("\tVLAN %d is present", i);
1177 }
1178 }
1179}
1180
1181static void vmxnet3_update_mcast_filters(VMXNET3State *s)
1182{
1183 uint16_t list_bytes =
1184 VMXNET3_READ_DRV_SHARED16(s->drv_shmem,
1185 devRead.rxFilterConf.mfTableLen);
1186
1187 s->mcast_list_len = list_bytes / sizeof(s->mcast_list[0]);
1188
1189 s->mcast_list = g_realloc(s->mcast_list, list_bytes);
1190 if (NULL == s->mcast_list) {
1191 if (0 == s->mcast_list_len) {
1192 VMW_CFPRN("Current multicast list is empty");
1193 } else {
1194 VMW_ERPRN("Failed to allocate multicast list of %d elements",
1195 s->mcast_list_len);
1196 }
1197 s->mcast_list_len = 0;
1198 } else {
1199 int i;
1200 hwaddr mcast_list_pa =
1201 VMXNET3_READ_DRV_SHARED64(s->drv_shmem,
1202 devRead.rxFilterConf.mfTablePA);
1203
1204 cpu_physical_memory_read(mcast_list_pa, s->mcast_list, list_bytes);
1205 VMW_CFPRN("Current multicast list len is %d:", s->mcast_list_len);
1206 for (i = 0; i < s->mcast_list_len; i++) {
1207 VMW_CFPRN("\t" VMXNET_MF, VMXNET_MA(s->mcast_list[i].a));
1208 }
1209 }
1210}
1211
1212static void vmxnet3_setup_rx_filtering(VMXNET3State *s)
1213{
1214 vmxnet3_update_rx_mode(s);
1215 vmxnet3_update_vlan_filters(s);
1216 vmxnet3_update_mcast_filters(s);
1217}
1218
1219static uint32_t vmxnet3_get_interrupt_config(VMXNET3State *s)
1220{
1221 uint32_t interrupt_mode = VMXNET3_IT_AUTO | (VMXNET3_IMM_AUTO << 2);
1222 VMW_CFPRN("Interrupt config is 0x%X", interrupt_mode);
1223 return interrupt_mode;
1224}
1225
1226static void vmxnet3_fill_stats(VMXNET3State *s)
1227{
1228 int i;
1229 for (i = 0; i < s->txq_num; i++) {
1230 cpu_physical_memory_write(s->txq_descr[i].tx_stats_pa,
1231 &s->txq_descr[i].txq_stats,
1232 sizeof(s->txq_descr[i].txq_stats));
1233 }
1234
1235 for (i = 0; i < s->rxq_num; i++) {
1236 cpu_physical_memory_write(s->rxq_descr[i].rx_stats_pa,
1237 &s->rxq_descr[i].rxq_stats,
1238 sizeof(s->rxq_descr[i].rxq_stats));
1239 }
1240}
1241
1242static void vmxnet3_adjust_by_guest_type(VMXNET3State *s)
1243{
1244 struct Vmxnet3_GOSInfo gos;
1245
1246 VMXNET3_READ_DRV_SHARED(s->drv_shmem, devRead.misc.driverInfo.gos,
1247 &gos, sizeof(gos));
1248 s->rx_packets_compound =
1249 (gos.gosType == VMXNET3_GOS_TYPE_WIN) ? false : true;
1250
1251 VMW_CFPRN("Guest type specifics: RXCOMPOUND: %d", s->rx_packets_compound);
1252}
1253
1254static void
1255vmxnet3_dump_conf_descr(const char *name,
1256 struct Vmxnet3_VariableLenConfDesc *pm_descr)
1257{
1258 VMW_CFPRN("%s descriptor dump: Version %u, Length %u",
1259 name, pm_descr->confVer, pm_descr->confLen);
1260
1261};
1262
1263static void vmxnet3_update_pm_state(VMXNET3State *s)
1264{
1265 struct Vmxnet3_VariableLenConfDesc pm_descr;
1266
1267 pm_descr.confLen =
1268 VMXNET3_READ_DRV_SHARED32(s->drv_shmem, devRead.pmConfDesc.confLen);
1269 pm_descr.confVer =
1270 VMXNET3_READ_DRV_SHARED32(s->drv_shmem, devRead.pmConfDesc.confVer);
1271 pm_descr.confPA =
1272 VMXNET3_READ_DRV_SHARED64(s->drv_shmem, devRead.pmConfDesc.confPA);
1273
1274 vmxnet3_dump_conf_descr("PM State", &pm_descr);
1275}
1276
1277static void vmxnet3_update_features(VMXNET3State *s)
1278{
1279 uint32_t guest_features;
1280 int rxcso_supported;
1281
1282 guest_features = VMXNET3_READ_DRV_SHARED32(s->drv_shmem,
1283 devRead.misc.uptFeatures);
1284
1285 rxcso_supported = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_RXCSUM);
1286 s->rx_vlan_stripping = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_RXVLAN);
1287 s->lro_supported = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_LRO);
1288
1289 VMW_CFPRN("Features configuration: LRO: %d, RXCSUM: %d, VLANSTRIP: %d",
1290 s->lro_supported, rxcso_supported,
1291 s->rx_vlan_stripping);
1292 if (s->peer_has_vhdr) {
1293 tap_set_offload(qemu_get_queue(s->nic)->peer,
1294 rxcso_supported,
1295 s->lro_supported,
1296 s->lro_supported,
1297 0,
1298 0);
1299 }
1300}
1301
4c89e3e5
MA		 1302static bool vmxnet3_verify_intx(VMXNET3State *s, int intx)
1303{
1304 return s->msix_used || s->msi_used || (intx ==
1305 (pci_get_byte(s->parent_obj.config + PCI_INTERRUPT_PIN) - 1));
1306}
1307
786fd2b0
DF		 1308static void vmxnet3_activate_device(VMXNET3State *s)
1309{
1310 int i;
1311 static const uint32_t VMXNET3_DEF_TX_THRESHOLD = 1;
1312 hwaddr qdescr_table_pa;
1313 uint64_t pa;
1314 uint32_t size;
1315
1316 /* Verify configuration consistency */
1317 if (!vmxnet3_verify_driver_magic(s->drv_shmem)) {
1318 VMW_ERPRN("Device configuration received from driver is invalid");
1319 return;
1320 }
1321
1322 vmxnet3_adjust_by_guest_type(s);
1323 vmxnet3_update_features(s);
1324 vmxnet3_update_pm_state(s);
1325 vmxnet3_setup_rx_filtering(s);
1326 /* Cache fields from shared memory */
1327 s->mtu = VMXNET3_READ_DRV_SHARED32(s->drv_shmem, devRead.misc.mtu);
1328 VMW_CFPRN("MTU is %u", s->mtu);
1329
1330 s->max_rx_frags =
1331 VMXNET3_READ_DRV_SHARED16(s->drv_shmem, devRead.misc.maxNumRxSG);
1332
3e948fd3
DF		 1333 if (s->max_rx_frags == 0) {
1334 s->max_rx_frags = 1;
1335 }
1336
786fd2b0
DF		 1337 VMW_CFPRN("Max RX fragments is %u", s->max_rx_frags);
1338
1339 s->event_int_idx =
1340 VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.intrConf.eventIntrIdx);
4c89e3e5 1341 assert(vmxnet3_verify_intx(s, s->event_int_idx));
786fd2b0
DF		 1342 VMW_CFPRN("Events interrupt line is %u", s->event_int_idx);
1343
1344 s->auto_int_masking =
1345 VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.intrConf.autoMask);
1346 VMW_CFPRN("Automatic interrupt masking is %d", (int)s->auto_int_masking);
1347
1348 s->txq_num =
1349 VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.misc.numTxQueues);
1350 s->rxq_num =
1351 VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.misc.numRxQueues);
1352
1353 VMW_CFPRN("Number of TX/RX queues %u/%u", s->txq_num, s->rxq_num);
1354 assert(s->txq_num <= VMXNET3_DEVICE_MAX_TX_QUEUES);
1355
1356 qdescr_table_pa =
1357 VMXNET3_READ_DRV_SHARED64(s->drv_shmem, devRead.misc.queueDescPA);
1358 VMW_CFPRN("TX queues descriptors table is at 0x%" PRIx64, qdescr_table_pa);
1359
1360 /*
1361 * Worst-case scenario is a packet that holds all TX rings space so
1362 * we calculate total size of all TX rings for max TX fragments number
1363 */
1364 s->max_tx_frags = 0;
1365
1366 /* TX queues */
1367 for (i = 0; i < s->txq_num; i++) {
1368 hwaddr qdescr_pa =
1369 qdescr_table_pa + i * sizeof(struct Vmxnet3_TxQueueDesc);
1370
1371 /* Read interrupt number for this TX queue */
1372 s->txq_descr[i].intr_idx =
1373 VMXNET3_READ_TX_QUEUE_DESCR8(qdescr_pa, conf.intrIdx);
4c89e3e5 1374 assert(vmxnet3_verify_intx(s, s->txq_descr[i].intr_idx));
786fd2b0
DF		 1375
1376 VMW_CFPRN("TX Queue %d interrupt: %d", i, s->txq_descr[i].intr_idx);
1377
1378 /* Read rings memory locations for TX queues */
1379 pa = VMXNET3_READ_TX_QUEUE_DESCR64(qdescr_pa, conf.txRingBasePA);
1380 size = VMXNET3_READ_TX_QUEUE_DESCR32(qdescr_pa, conf.txRingSize);
1381
1382 vmxnet3_ring_init(&s->txq_descr[i].tx_ring, pa, size,
1383 sizeof(struct Vmxnet3_TxDesc), false);
1384 VMXNET3_RING_DUMP(VMW_CFPRN, "TX", i, &s->txq_descr[i].tx_ring);
1385
1386 s->max_tx_frags += size;
1387
1388 /* TXC ring */
1389 pa = VMXNET3_READ_TX_QUEUE_DESCR64(qdescr_pa, conf.compRingBasePA);
1390 size = VMXNET3_READ_TX_QUEUE_DESCR32(qdescr_pa, conf.compRingSize);
1391 vmxnet3_ring_init(&s->txq_descr[i].comp_ring, pa, size,
1392 sizeof(struct Vmxnet3_TxCompDesc), true);
1393 VMXNET3_RING_DUMP(VMW_CFPRN, "TXC", i, &s->txq_descr[i].comp_ring);
1394
1395 s->txq_descr[i].tx_stats_pa =
1396 qdescr_pa + offsetof(struct Vmxnet3_TxQueueDesc, stats);
1397
1398 memset(&s->txq_descr[i].txq_stats, 0,
1399 sizeof(s->txq_descr[i].txq_stats));
1400
1401 /* Fill device-managed parameters for queues */
1402 VMXNET3_WRITE_TX_QUEUE_DESCR32(qdescr_pa,
1403 ctrl.txThreshold,
1404 VMXNET3_DEF_TX_THRESHOLD);
1405 }
1406
1407 /* Preallocate TX packet wrapper */
1408 VMW_CFPRN("Max TX fragments is %u", s->max_tx_frags);
1409 vmxnet_tx_pkt_init(&s->tx_pkt, s->max_tx_frags, s->peer_has_vhdr);
1410 vmxnet_rx_pkt_init(&s->rx_pkt, s->peer_has_vhdr);
1411
1412 /* Read rings memory locations for RX queues */
1413 for (i = 0; i < s->rxq_num; i++) {
1414 int j;
1415 hwaddr qd_pa =
1416 qdescr_table_pa + s->txq_num * sizeof(struct Vmxnet3_TxQueueDesc) +
1417 i * sizeof(struct Vmxnet3_RxQueueDesc);
1418
1419 /* Read interrupt number for this RX queue */
1420 s->rxq_descr[i].intr_idx =
1421 VMXNET3_READ_TX_QUEUE_DESCR8(qd_pa, conf.intrIdx);
4c89e3e5 1422 assert(vmxnet3_verify_intx(s, s->rxq_descr[i].intr_idx));
786fd2b0
DF		 1423
1424 VMW_CFPRN("RX Queue %d interrupt: %d", i, s->rxq_descr[i].intr_idx);
1425
1426 /* Read rings memory locations */
1427 for (j = 0; j < VMXNET3_RX_RINGS_PER_QUEUE; j++) {
1428 /* RX rings */
1429 pa = VMXNET3_READ_RX_QUEUE_DESCR64(qd_pa, conf.rxRingBasePA[j]);
1430 size = VMXNET3_READ_RX_QUEUE_DESCR32(qd_pa, conf.rxRingSize[j]);
1431 vmxnet3_ring_init(&s->rxq_descr[i].rx_ring[j], pa, size,
1432 sizeof(struct Vmxnet3_RxDesc), false);
1433 VMW_CFPRN("RX queue %d:%d: Base: %" PRIx64 ", Size: %d",
1434 i, j, pa, size);
1435 }
1436
1437 /* RXC ring */
1438 pa = VMXNET3_READ_RX_QUEUE_DESCR64(qd_pa, conf.compRingBasePA);
1439 size = VMXNET3_READ_RX_QUEUE_DESCR32(qd_pa, conf.compRingSize);
1440 vmxnet3_ring_init(&s->rxq_descr[i].comp_ring, pa, size,
1441 sizeof(struct Vmxnet3_RxCompDesc), true);
1442 VMW_CFPRN("RXC queue %d: Base: %" PRIx64 ", Size: %d", i, pa, size);
1443
1444 s->rxq_descr[i].rx_stats_pa =
1445 qd_pa + offsetof(struct Vmxnet3_RxQueueDesc, stats);
1446 memset(&s->rxq_descr[i].rxq_stats, 0,
1447 sizeof(s->rxq_descr[i].rxq_stats));
1448 }
1449
1450 /* Make sure everything is in place before device activation */
1451 smp_wmb();
1452
1453 vmxnet3_reset_mac(s);
1454
1455 s->device_active = true;
1456}
1457
1458static void vmxnet3_handle_command(VMXNET3State *s, uint64_t cmd)
1459{
1460 s->last_command = cmd;
1461
1462 switch (cmd) {
1463 case VMXNET3_CMD_GET_PERM_MAC_HI:
1464 VMW_CBPRN("Set: Get upper part of permanent MAC");
1465 break;
1466
1467 case VMXNET3_CMD_GET_PERM_MAC_LO:
1468 VMW_CBPRN("Set: Get lower part of permanent MAC");
1469 break;
1470
1471 case VMXNET3_CMD_GET_STATS:
1472 VMW_CBPRN("Set: Get device statistics");
1473 vmxnet3_fill_stats(s);
1474 break;
1475
1476 case VMXNET3_CMD_ACTIVATE_DEV:
1477 VMW_CBPRN("Set: Activating vmxnet3 device");
1478 vmxnet3_activate_device(s);
1479 break;
1480
1481 case VMXNET3_CMD_UPDATE_RX_MODE:
1482 VMW_CBPRN("Set: Update rx mode");
1483 vmxnet3_update_rx_mode(s);
1484 break;
1485
1486 case VMXNET3_CMD_UPDATE_VLAN_FILTERS:
1487 VMW_CBPRN("Set: Update VLAN filters");
1488 vmxnet3_update_vlan_filters(s);
1489 break;
1490
1491 case VMXNET3_CMD_UPDATE_MAC_FILTERS:
1492 VMW_CBPRN("Set: Update MAC filters");
1493 vmxnet3_update_mcast_filters(s);
1494 break;
1495
1496 case VMXNET3_CMD_UPDATE_FEATURE:
1497 VMW_CBPRN("Set: Update features");
1498 vmxnet3_update_features(s);
1499 break;
1500
1501 case VMXNET3_CMD_UPDATE_PMCFG:
1502 VMW_CBPRN("Set: Update power management config");
1503 vmxnet3_update_pm_state(s);
1504 break;
1505
1506 case VMXNET3_CMD_GET_LINK:
1507 VMW_CBPRN("Set: Get link");
1508 break;
1509
1510 case VMXNET3_CMD_RESET_DEV:
1511 VMW_CBPRN("Set: Reset device");
1512 vmxnet3_reset(s);
1513 break;
1514
1515 case VMXNET3_CMD_QUIESCE_DEV:
1516 VMW_CBPRN("Set: VMXNET3_CMD_QUIESCE_DEV - pause the device");
1517 vmxnet3_deactivate_device(s);
1518 break;
1519
1520 case VMXNET3_CMD_GET_CONF_INTR:
1521 VMW_CBPRN("Set: VMXNET3_CMD_GET_CONF_INTR - interrupt configuration");
1522 break;
1523
1524 default:
1525 VMW_CBPRN("Received unknown command: %" PRIx64, cmd);
1526 break;
1527 }
1528}
1529
1530static uint64_t vmxnet3_get_command_status(VMXNET3State *s)
1531{
1532 uint64_t ret;
1533
1534 switch (s->last_command) {
1535 case VMXNET3_CMD_ACTIVATE_DEV:
1536 ret = (s->device_active) ? 0 : -1;
1537 VMW_CFPRN("Device active: %" PRIx64, ret);
1538 break;
1539
3e948fd3
DF		 1540 case VMXNET3_CMD_RESET_DEV:
1541 case VMXNET3_CMD_QUIESCE_DEV:
1542 case VMXNET3_CMD_GET_QUEUE_STATUS:
1543 ret = 0;
1544 break;
1545
786fd2b0
DF		 1546 case VMXNET3_CMD_GET_LINK:
1547 ret = s->link_status_and_speed;
1548 VMW_CFPRN("Link and speed: %" PRIx64, ret);
1549 break;
1550
1551 case VMXNET3_CMD_GET_PERM_MAC_LO:
1552 ret = vmxnet3_get_mac_low(&s->perm_mac);
1553 break;
1554
1555 case VMXNET3_CMD_GET_PERM_MAC_HI:
1556 ret = vmxnet3_get_mac_high(&s->perm_mac);
1557 break;
1558
1559 case VMXNET3_CMD_GET_CONF_INTR:
1560 ret = vmxnet3_get_interrupt_config(s);
1561 break;
1562
1563 default:
1564 VMW_WRPRN("Received request for unknown command: %x", s->last_command);
1565 ret = -1;
1566 break;
1567 }
1568
1569 return ret;
1570}
1571
1572static void vmxnet3_set_events(VMXNET3State *s, uint32_t val)
1573{
1574 uint32_t events;
1575
1576 VMW_CBPRN("Setting events: 0x%x", val);
1577 events = VMXNET3_READ_DRV_SHARED32(s->drv_shmem, ecr) | val;
1578 VMXNET3_WRITE_DRV_SHARED32(s->drv_shmem, ecr, events);
1579}
1580
1581static void vmxnet3_ack_events(VMXNET3State *s, uint32_t val)
1582{
1583 uint32_t events;
1584
1585 VMW_CBPRN("Clearing events: 0x%x", val);
1586 events = VMXNET3_READ_DRV_SHARED32(s->drv_shmem, ecr) & ~val;
1587 VMXNET3_WRITE_DRV_SHARED32(s->drv_shmem, ecr, events);
1588}
1589
1590static void
1591vmxnet3_io_bar1_write(void *opaque,
1592 hwaddr addr,
1593 uint64_t val,
1594 unsigned size)
1595{
1596 VMXNET3State *s = opaque;
1597
1598 switch (addr) {
1599 /* Vmxnet3 Revision Report Selection */
1600 case VMXNET3_REG_VRRS:
1601 VMW_CBPRN("Write BAR1 [VMXNET3_REG_VRRS] = %" PRIx64 ", size %d",
1602 val, size);
1603 break;
1604
1605 /* UPT Version Report Selection */
1606 case VMXNET3_REG_UVRS:
1607 VMW_CBPRN("Write BAR1 [VMXNET3_REG_UVRS] = %" PRIx64 ", size %d",
1608 val, size);
1609 break;
1610
1611 /* Driver Shared Address Low */
1612 case VMXNET3_REG_DSAL:
1613 VMW_CBPRN("Write BAR1 [VMXNET3_REG_DSAL] = %" PRIx64 ", size %d",
1614 val, size);
1615 /*
1616 * Guest driver will first write the low part of the shared
1617 * memory address. We save it to temp variable and set the
1618 * shared address only after we get the high part
1619 */
1620 if (0 == val) {
1621 s->device_active = false;
1622 }
1623 s->temp_shared_guest_driver_memory = val;
1624 s->drv_shmem = 0;
1625 break;
1626
1627 /* Driver Shared Address High */
1628 case VMXNET3_REG_DSAH:
1629 VMW_CBPRN("Write BAR1 [VMXNET3_REG_DSAH] = %" PRIx64 ", size %d",
1630 val, size);
1631 /*
1632 * Set the shared memory between guest driver and device.
1633 * We already should have low address part.
1634 */
1635 s->drv_shmem = s->temp_shared_guest_driver_memory | (val << 32);
1636 break;
1637
1638 /* Command */
1639 case VMXNET3_REG_CMD:
1640 VMW_CBPRN("Write BAR1 [VMXNET3_REG_CMD] = %" PRIx64 ", size %d",
1641 val, size);
1642 vmxnet3_handle_command(s, val);
1643 break;
1644
1645 /* MAC Address Low */
1646 case VMXNET3_REG_MACL:
1647 VMW_CBPRN("Write BAR1 [VMXNET3_REG_MACL] = %" PRIx64 ", size %d",
1648 val, size);
1649 s->temp_mac = val;
1650 break;
1651
1652 /* MAC Address High */
1653 case VMXNET3_REG_MACH:
1654 VMW_CBPRN("Write BAR1 [VMXNET3_REG_MACH] = %" PRIx64 ", size %d",
1655 val, size);
1656 vmxnet3_set_variable_mac(s, val, s->temp_mac);
1657 break;
1658
1659 /* Interrupt Cause Register */
1660 case VMXNET3_REG_ICR:
1661 VMW_CBPRN("Write BAR1 [VMXNET3_REG_ICR] = %" PRIx64 ", size %d",
1662 val, size);
dfc6f865 1663 g_assert_not_reached();
786fd2b0
DF		 1664 break;
1665
1666 /* Event Cause Register */
1667 case VMXNET3_REG_ECR:
1668 VMW_CBPRN("Write BAR1 [VMXNET3_REG_ECR] = %" PRIx64 ", size %d",
1669 val, size);
1670 vmxnet3_ack_events(s, val);
1671 break;
1672
1673 default:
1674 VMW_CBPRN("Unknown Write to BAR1 [%" PRIx64 "] = %" PRIx64 ", size %d",
1675 addr, val, size);
1676 break;
1677 }
1678}
1679
1680static uint64_t
1681vmxnet3_io_bar1_read(void *opaque, hwaddr addr, unsigned size)
1682{
1683 VMXNET3State *s = opaque;
1684 uint64_t ret = 0;
1685
1686 switch (addr) {
1687 /* Vmxnet3 Revision Report Selection */
1688 case VMXNET3_REG_VRRS:
1689 VMW_CBPRN("Read BAR1 [VMXNET3_REG_VRRS], size %d", size);
1690 ret = VMXNET3_DEVICE_REVISION;
1691 break;
1692
1693 /* UPT Version Report Selection */
1694 case VMXNET3_REG_UVRS:
1695 VMW_CBPRN("Read BAR1 [VMXNET3_REG_UVRS], size %d", size);
1696 ret = VMXNET3_DEVICE_VERSION;
1697 break;
1698
1699 /* Command */
1700 case VMXNET3_REG_CMD:
1701 VMW_CBPRN("Read BAR1 [VMXNET3_REG_CMD], size %d", size);
1702 ret = vmxnet3_get_command_status(s);
1703 break;
1704
1705 /* MAC Address Low */
1706 case VMXNET3_REG_MACL:
1707 VMW_CBPRN("Read BAR1 [VMXNET3_REG_MACL], size %d", size);
1708 ret = vmxnet3_get_mac_low(&s->conf.macaddr);
1709 break;
1710
1711 /* MAC Address High */
1712 case VMXNET3_REG_MACH:
1713 VMW_CBPRN("Read BAR1 [VMXNET3_REG_MACH], size %d", size);
1714 ret = vmxnet3_get_mac_high(&s->conf.macaddr);
1715 break;
1716
1717 /*
1718 * Interrupt Cause Register
1719 * Used for legacy interrupts only so interrupt index always 0
1720 */
1721 case VMXNET3_REG_ICR:
1722 VMW_CBPRN("Read BAR1 [VMXNET3_REG_ICR], size %d", size);
1723 if (vmxnet3_interrupt_asserted(s, 0)) {
1724 vmxnet3_clear_interrupt(s, 0);
1725 ret = true;
1726 } else {
1727 ret = false;
1728 }
1729 break;
1730
1731 default:
1732 VMW_CBPRN("Unknow read BAR1[%" PRIx64 "], %d bytes", addr, size);
1733 break;
1734 }
1735
1736 return ret;
1737}
1738
1739static int
1740vmxnet3_can_receive(NetClientState *nc)
1741{
1742 VMXNET3State *s = qemu_get_nic_opaque(nc);
1743 return s->device_active &&
1744 VMXNET_FLAG_IS_SET(s->link_status_and_speed, VMXNET3_LINK_STATUS_UP);
1745}
1746
1747static inline bool
1748vmxnet3_is_registered_vlan(VMXNET3State *s, const void *data)
1749{
1750 uint16_t vlan_tag = eth_get_pkt_tci(data) & VLAN_VID_MASK;
1751 if (IS_SPECIAL_VLAN_ID(vlan_tag)) {
1752 return true;
1753 }
1754
1755 return VMXNET3_VFTABLE_ENTRY_IS_SET(s->vlan_table, vlan_tag);
1756}
1757
1758static bool
1759vmxnet3_is_allowed_mcast_group(VMXNET3State *s, const uint8_t *group_mac)
1760{
1761 int i;
1762 for (i = 0; i < s->mcast_list_len; i++) {
1763 if (!memcmp(group_mac, s->mcast_list[i].a, sizeof(s->mcast_list[i]))) {
1764 return true;
1765 }
1766 }
1767 return false;
1768}
1769
1770static bool
1771vmxnet3_rx_filter_may_indicate(VMXNET3State *s, const void *data,
1772 size_t size)
1773{
1774 struct eth_header *ehdr = PKT_GET_ETH_HDR(data);
1775
1776 if (VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_PROMISC)) {
1777 return true;
1778 }
1779
1780 if (!vmxnet3_is_registered_vlan(s, data)) {
1781 return false;
1782 }
1783
1784 switch (vmxnet_rx_pkt_get_packet_type(s->rx_pkt)) {
1785 case ETH_PKT_UCAST:
1786 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_UCAST)) {
1787 return false;
1788 }
1789 if (memcmp(s->conf.macaddr.a, ehdr->h_dest, ETH_ALEN)) {
1790 return false;
1791 }
1792 break;
1793
1794 case ETH_PKT_BCAST:
1795 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_BCAST)) {
1796 return false;
1797 }
1798 break;
1799
1800 case ETH_PKT_MCAST:
1801 if (VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_ALL_MULTI)) {
1802 return true;
1803 }
1804 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_MCAST)) {
1805 return false;
1806 }
1807 if (!vmxnet3_is_allowed_mcast_group(s, ehdr->h_dest)) {
1808 return false;
1809 }
1810 break;
1811
1812 default:
dfc6f865 1813 g_assert_not_reached();
786fd2b0
DF		 1814 }
1815
1816 return true;
1817}
1818
1819static ssize_t
1820vmxnet3_receive(NetClientState *nc, const uint8_t *buf, size_t size)
1821{
1822 VMXNET3State *s = qemu_get_nic_opaque(nc);
1823 size_t bytes_indicated;
1824
1825 if (!vmxnet3_can_receive(nc)) {
1826 VMW_PKPRN("Cannot receive now");
1827 return -1;
1828 }
1829
1830 if (s->peer_has_vhdr) {
1831 vmxnet_rx_pkt_set_vhdr(s->rx_pkt, (struct virtio_net_hdr *)buf);
1832 buf += sizeof(struct virtio_net_hdr);
1833 size -= sizeof(struct virtio_net_hdr);
1834 }
1835
1836 vmxnet_rx_pkt_set_packet_type(s->rx_pkt,
1837 get_eth_packet_type(PKT_GET_ETH_HDR(buf)));
1838
1839 if (vmxnet3_rx_filter_may_indicate(s, buf, size)) {
1840 vmxnet_rx_pkt_attach_data(s->rx_pkt, buf, size, s->rx_vlan_stripping);
1841 bytes_indicated = vmxnet3_indicate_packet(s) ? size : -1;
1842 if (bytes_indicated < size) {
1843 VMW_PKPRN("RX: %lu of %lu bytes indicated", bytes_indicated, size);
1844 }
1845 } else {
1846 VMW_PKPRN("Packet dropped by RX filter");
1847 bytes_indicated = size;
1848 }
1849
1850 assert(size > 0);
1851 assert(bytes_indicated != 0);
1852 return bytes_indicated;
1853}
1854
1855static void vmxnet3_cleanup(NetClientState *nc)
1856{
1857 VMXNET3State *s = qemu_get_nic_opaque(nc);
1858 s->nic = NULL;
1859}
1860
1861static void vmxnet3_set_link_status(NetClientState *nc)
1862{
1863 VMXNET3State *s = qemu_get_nic_opaque(nc);
1864
1865 if (nc->link_down) {
1866 s->link_status_and_speed &= ~VMXNET3_LINK_STATUS_UP;
1867 } else {
1868 s->link_status_and_speed |= VMXNET3_LINK_STATUS_UP;
1869 }
1870
1871 vmxnet3_set_events(s, VMXNET3_ECR_LINK);
1872 vmxnet3_trigger_interrupt(s, s->event_int_idx);
1873}
1874
1875static NetClientInfo net_vmxnet3_info = {
1876 .type = NET_CLIENT_OPTIONS_KIND_NIC,
1877 .size = sizeof(NICState),
1878 .can_receive = vmxnet3_can_receive,
1879 .receive = vmxnet3_receive,
1880 .cleanup = vmxnet3_cleanup,
1881 .link_status_changed = vmxnet3_set_link_status,
1882};
1883
1884static bool vmxnet3_peer_has_vnet_hdr(VMXNET3State *s)
1885{
1886 NetClientState *peer = qemu_get_queue(s->nic)->peer;
1887
1888 if ((NULL != peer) &&
1889 (peer->info->type == NET_CLIENT_OPTIONS_KIND_TAP) &&
1890 tap_has_vnet_hdr(peer)) {
1891 return true;
1892 }
1893
1894 VMW_WRPRN("Peer has no virtio extension. Task offloads will be emulated.");
1895 return false;
1896}
1897
1898static void vmxnet3_net_uninit(VMXNET3State *s)
1899{
1900 g_free(s->mcast_list);
1901 vmxnet_tx_pkt_reset(s->tx_pkt);
1902 vmxnet_tx_pkt_uninit(s->tx_pkt);
1903 vmxnet_rx_pkt_uninit(s->rx_pkt);
3ffee3cd 1904 qemu_del_nic(s->nic);
786fd2b0
DF		 1905}
1906
1907static void vmxnet3_net_init(VMXNET3State *s)
1908{
1909 DeviceState *d = DEVICE(s);
1910
1911 VMW_CBPRN("vmxnet3_net_init called...");
1912
1913 qemu_macaddr_default_if_unset(&s->conf.macaddr);
1914
1915 /* Windows guest will query the address that was set on init */
1916 memcpy(&s->perm_mac.a, &s->conf.macaddr.a, sizeof(s->perm_mac.a));
1917
1918 s->mcast_list = NULL;
1919 s->mcast_list_len = 0;
1920
1921 s->link_status_and_speed = VMXNET3_LINK_SPEED | VMXNET3_LINK_STATUS_UP;
1922
1923 VMW_CFPRN("Permanent MAC: " MAC_FMT, MAC_ARG(s->perm_mac.a));
1924
1925 s->nic = qemu_new_nic(&net_vmxnet3_info, &s->conf,
1926 object_get_typename(OBJECT(s)),
1927 d->id, s);
1928
1929 s->peer_has_vhdr = vmxnet3_peer_has_vnet_hdr(s);
1930 s->tx_sop = true;
1931 s->skip_current_tx_pkt = false;
1932 s->tx_pkt = NULL;
1933 s->rx_pkt = NULL;
1934 s->rx_vlan_stripping = false;
1935 s->lro_supported = false;
1936
1937 if (s->peer_has_vhdr) {
1938 tap_set_vnet_hdr_len(qemu_get_queue(s->nic)->peer,
1939 sizeof(struct virtio_net_hdr));
1940
1941 tap_using_vnet_hdr(qemu_get_queue(s->nic)->peer, 1);
1942 }
1943
1944 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
1945}
1946
1947static void
1948vmxnet3_unuse_msix_vectors(VMXNET3State *s, int num_vectors)
1949{
1950 PCIDevice *d = PCI_DEVICE(s);
1951 int i;
1952 for (i = 0; i < num_vectors; i++) {
1953 msix_vector_unuse(d, i);
1954 }
1955}
1956
1957static bool
1958vmxnet3_use_msix_vectors(VMXNET3State *s, int num_vectors)
1959{
1960 PCIDevice *d = PCI_DEVICE(s);
1961 int i;
1962 for (i = 0; i < num_vectors; i++) {
1963 int res = msix_vector_use(d, i);
1964 if (0 > res) {
1965 VMW_WRPRN("Failed to use MSI-X vector %d, error %d", i, res);
1966 vmxnet3_unuse_msix_vectors(s, i);
1967 return false;
1968 }
1969 }
1970 return true;
1971}
1972
1973static bool
1974vmxnet3_init_msix(VMXNET3State *s)
1975{
1976 PCIDevice *d = PCI_DEVICE(s);
1977 int res = msix_init(d, VMXNET3_MAX_INTRS,
1978 &s->msix_bar,
1979 VMXNET3_MSIX_BAR_IDX, VMXNET3_OFF_MSIX_TABLE,
1980 &s->msix_bar,
1981 VMXNET3_MSIX_BAR_IDX, VMXNET3_OFF_MSIX_PBA,
1982 0);
1983
1984 if (0 > res) {
1985 VMW_WRPRN("Failed to initialize MSI-X, error %d", res);
1986 s->msix_used = false;
1987 } else {
1988 if (!vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS)) {
1989 VMW_WRPRN("Failed to use MSI-X vectors, error %d", res);
1990 msix_uninit(d, &s->msix_bar, &s->msix_bar);
1991 s->msix_used = false;
1992 } else {
1993 s->msix_used = true;
1994 }
1995 }
1996 return s->msix_used;
1997}
1998
1999static void
2000vmxnet3_cleanup_msix(VMXNET3State *s)
2001{
2002 PCIDevice *d = PCI_DEVICE(s);
2003
2004 if (s->msix_used) {
2005 msix_vector_unuse(d, VMXNET3_MAX_INTRS);
2006 msix_uninit(d, &s->msix_bar, &s->msix_bar);
2007 }
2008}
2009
2010#define VMXNET3_MSI_NUM_VECTORS (1)
2011#define VMXNET3_MSI_OFFSET (0x50)
2012#define VMXNET3_USE_64BIT (true)
2013#define VMXNET3_PER_VECTOR_MASK (false)
2014
2015static bool
2016vmxnet3_init_msi(VMXNET3State *s)
2017{
2018 PCIDevice *d = PCI_DEVICE(s);
2019 int res;
2020
2021 res = msi_init(d, VMXNET3_MSI_OFFSET, VMXNET3_MSI_NUM_VECTORS,
2022 VMXNET3_USE_64BIT, VMXNET3_PER_VECTOR_MASK);
2023 if (0 > res) {
2024 VMW_WRPRN("Failed to initialize MSI, error %d", res);
2025 s->msi_used = false;
2026 } else {
2027 s->msi_used = true;
2028 }
2029
2030 return s->msi_used;
2031}
2032
2033static void
2034vmxnet3_cleanup_msi(VMXNET3State *s)
2035{
2036 PCIDevice *d = PCI_DEVICE(s);
2037
2038 if (s->msi_used) {
2039 msi_uninit(d);
2040 }
2041}
2042
2043static void
2044vmxnet3_msix_save(QEMUFile *f, void *opaque)
2045{
2046 PCIDevice *d = PCI_DEVICE(opaque);
2047 msix_save(d, f);
2048}
2049
2050static int
2051vmxnet3_msix_load(QEMUFile *f, void *opaque, int version_id)
2052{
2053 PCIDevice *d = PCI_DEVICE(opaque);
2054 msix_load(d, f);
2055 return 0;
2056}
2057
2058static const MemoryRegionOps b0_ops = {
2059 .read = vmxnet3_io_bar0_read,
2060 .write = vmxnet3_io_bar0_write,
2061 .endianness = DEVICE_LITTLE_ENDIAN,
2062 .impl = {
2063 .min_access_size = 4,
2064 .max_access_size = 4,
2065 },
2066};
2067
2068static const MemoryRegionOps b1_ops = {
2069 .read = vmxnet3_io_bar1_read,
2070 .write = vmxnet3_io_bar1_write,
2071 .endianness = DEVICE_LITTLE_ENDIAN,
2072 .impl = {
2073 .min_access_size = 4,
2074 .max_access_size = 4,
2075 },
2076};
2077
2078static int vmxnet3_pci_init(PCIDevice *pci_dev)
2079{
2080 DeviceState *dev = DEVICE(pci_dev);
2081 VMXNET3State *s = VMXNET3(pci_dev);
2082
2083 VMW_CBPRN("Starting init...");
2084
eedfac6f 2085 memory_region_init_io(&s->bar0, OBJECT(s), &b0_ops, s,
786fd2b0
DF		 2086 "vmxnet3-b0", VMXNET3_PT_REG_SIZE);
2087 pci_register_bar(pci_dev, VMXNET3_BAR0_IDX,
2088 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar0);
2089
eedfac6f 2090 memory_region_init_io(&s->bar1, OBJECT(s), &b1_ops, s,
786fd2b0
DF		 2091 "vmxnet3-b1", VMXNET3_VD_REG_SIZE);
2092 pci_register_bar(pci_dev, VMXNET3_BAR1_IDX,
2093 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar1);
2094
eedfac6f 2095 memory_region_init(&s->msix_bar, OBJECT(s), "vmxnet3-msix-bar",
786fd2b0
DF		 2096 VMXNET3_MSIX_BAR_SIZE);
2097 pci_register_bar(pci_dev, VMXNET3_MSIX_BAR_IDX,
2098 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->msix_bar);
2099
2100 vmxnet3_reset_interrupt_states(s);
2101
2102 /* Interrupt pin A */
2103 pci_dev->config[PCI_INTERRUPT_PIN] = 0x01;
2104
2105 if (!vmxnet3_init_msix(s)) {
2106 VMW_WRPRN("Failed to initialize MSI-X, configuration is inconsistent.");
2107 }
2108
2109 if (!vmxnet3_init_msi(s)) {
2110 VMW_WRPRN("Failed to initialize MSI, configuration is inconsistent.");
2111 }
2112
2113 vmxnet3_net_init(s);
2114
2115 register_savevm(dev, "vmxnet3-msix", -1, 1,
2116 vmxnet3_msix_save, vmxnet3_msix_load, s);
2117
2118 add_boot_device_path(s->conf.bootindex, dev, "/ethernet-phy@0");
2119
2120 return 0;
2121}
2122
2123
2124static void vmxnet3_pci_uninit(PCIDevice *pci_dev)
2125{
2126 DeviceState *dev = DEVICE(pci_dev);
2127 VMXNET3State *s = VMXNET3(pci_dev);
2128
2129 VMW_CBPRN("Starting uninit...");
2130
2131 unregister_savevm(dev, "vmxnet3-msix", s);
2132
2133 vmxnet3_net_uninit(s);
2134
2135 vmxnet3_cleanup_msix(s);
2136
2137 vmxnet3_cleanup_msi(s);
2138
2139 memory_region_destroy(&s->bar0);
2140 memory_region_destroy(&s->bar1);
2141 memory_region_destroy(&s->msix_bar);
2142}
2143
2144static void vmxnet3_qdev_reset(DeviceState *dev)
2145{
2146 PCIDevice *d = PCI_DEVICE(dev);
2147 VMXNET3State *s = VMXNET3(d);
2148
2149 VMW_CBPRN("Starting QDEV reset...");
2150 vmxnet3_reset(s);
2151}
2152
2153static bool vmxnet3_mc_list_needed(void *opaque)
2154{
2155 return true;
2156}
2157
2158static int vmxnet3_mcast_list_pre_load(void *opaque)
2159{
2160 VMXNET3State *s = opaque;
2161
2162 s->mcast_list = g_malloc(s->mcast_list_buff_size);
2163
2164 return 0;
2165}
2166
2167
2168static void vmxnet3_pre_save(void *opaque)
2169{
2170 VMXNET3State *s = opaque;
2171
2172 s->mcast_list_buff_size = s->mcast_list_len * sizeof(MACAddr);
2173}
2174
2175static const VMStateDescription vmxstate_vmxnet3_mcast_list = {
2176 .name = "vmxnet3/mcast_list",
2177 .version_id = 1,
2178 .minimum_version_id = 1,
2179 .minimum_version_id_old = 1,
2180 .pre_load = vmxnet3_mcast_list_pre_load,
2181 .fields = (VMStateField[]) {
2182 VMSTATE_VBUFFER_UINT32(mcast_list, VMXNET3State, 0, NULL, 0,
2183 mcast_list_buff_size),
2184 VMSTATE_END_OF_LIST()
2185 }
2186};
2187
2188static void vmxnet3_get_ring_from_file(QEMUFile *f, Vmxnet3Ring *r)
2189{
2190 r->pa = qemu_get_be64(f);
2191 r->size = qemu_get_be32(f);
2192 r->cell_size = qemu_get_be32(f);
2193 r->next = qemu_get_be32(f);
2194 r->gen = qemu_get_byte(f);
2195}
2196
2197static void vmxnet3_put_ring_to_file(QEMUFile *f, Vmxnet3Ring *r)
2198{
2199 qemu_put_be64(f, r->pa);
2200 qemu_put_be32(f, r->size);
2201 qemu_put_be32(f, r->cell_size);
2202 qemu_put_be32(f, r->next);
2203 qemu_put_byte(f, r->gen);
2204}
2205
2206static void vmxnet3_get_tx_stats_from_file(QEMUFile *f,
2207 struct UPT1_TxStats *tx_stat)
2208{
2209 tx_stat->TSOPktsTxOK = qemu_get_be64(f);
2210 tx_stat->TSOBytesTxOK = qemu_get_be64(f);
2211 tx_stat->ucastPktsTxOK = qemu_get_be64(f);
2212 tx_stat->ucastBytesTxOK = qemu_get_be64(f);
2213 tx_stat->mcastPktsTxOK = qemu_get_be64(f);
2214 tx_stat->mcastBytesTxOK = qemu_get_be64(f);
2215 tx_stat->bcastPktsTxOK = qemu_get_be64(f);
2216 tx_stat->bcastBytesTxOK = qemu_get_be64(f);
2217 tx_stat->pktsTxError = qemu_get_be64(f);
2218 tx_stat->pktsTxDiscard = qemu_get_be64(f);
2219}
2220
2221static void vmxnet3_put_tx_stats_to_file(QEMUFile *f,
2222 struct UPT1_TxStats *tx_stat)
2223{
2224 qemu_put_be64(f, tx_stat->TSOPktsTxOK);
2225 qemu_put_be64(f, tx_stat->TSOBytesTxOK);
2226 qemu_put_be64(f, tx_stat->ucastPktsTxOK);
2227 qemu_put_be64(f, tx_stat->ucastBytesTxOK);
2228 qemu_put_be64(f, tx_stat->mcastPktsTxOK);
2229 qemu_put_be64(f, tx_stat->mcastBytesTxOK);
2230 qemu_put_be64(f, tx_stat->bcastPktsTxOK);
2231 qemu_put_be64(f, tx_stat->bcastBytesTxOK);
2232 qemu_put_be64(f, tx_stat->pktsTxError);
2233 qemu_put_be64(f, tx_stat->pktsTxDiscard);
2234}
2235
2236static int vmxnet3_get_txq_descr(QEMUFile *f, void *pv, size_t size)
2237{
2238 Vmxnet3TxqDescr *r = pv;
2239
2240 vmxnet3_get_ring_from_file(f, &r->tx_ring);
2241 vmxnet3_get_ring_from_file(f, &r->comp_ring);
2242 r->intr_idx = qemu_get_byte(f);
2243 r->tx_stats_pa = qemu_get_be64(f);
2244
2245 vmxnet3_get_tx_stats_from_file(f, &r->txq_stats);
2246
2247 return 0;
2248}
2249
2250static void vmxnet3_put_txq_descr(QEMUFile *f, void *pv, size_t size)
2251{
2252 Vmxnet3TxqDescr *r = pv;
2253
2254 vmxnet3_put_ring_to_file(f, &r->tx_ring);
2255 vmxnet3_put_ring_to_file(f, &r->comp_ring);
2256 qemu_put_byte(f, r->intr_idx);
2257 qemu_put_be64(f, r->tx_stats_pa);
2258 vmxnet3_put_tx_stats_to_file(f, &r->txq_stats);
2259}
2260
2261const VMStateInfo txq_descr_info = {
2262 .name = "txq_descr",
2263 .get = vmxnet3_get_txq_descr,
2264 .put = vmxnet3_put_txq_descr
2265};
2266
2267static void vmxnet3_get_rx_stats_from_file(QEMUFile *f,
2268 struct UPT1_RxStats *rx_stat)
2269{
2270 rx_stat->LROPktsRxOK = qemu_get_be64(f);
2271 rx_stat->LROBytesRxOK = qemu_get_be64(f);
2272 rx_stat->ucastPktsRxOK = qemu_get_be64(f);
2273 rx_stat->ucastBytesRxOK = qemu_get_be64(f);
2274 rx_stat->mcastPktsRxOK = qemu_get_be64(f);
2275 rx_stat->mcastBytesRxOK = qemu_get_be64(f);
2276 rx_stat->bcastPktsRxOK = qemu_get_be64(f);
2277 rx_stat->bcastBytesRxOK = qemu_get_be64(f);
2278 rx_stat->pktsRxOutOfBuf = qemu_get_be64(f);
2279 rx_stat->pktsRxError = qemu_get_be64(f);
2280}
2281
2282static void vmxnet3_put_rx_stats_to_file(QEMUFile *f,
2283 struct UPT1_RxStats *rx_stat)
2284{
2285 qemu_put_be64(f, rx_stat->LROPktsRxOK);
2286 qemu_put_be64(f, rx_stat->LROBytesRxOK);
2287 qemu_put_be64(f, rx_stat->ucastPktsRxOK);
2288 qemu_put_be64(f, rx_stat->ucastBytesRxOK);
2289 qemu_put_be64(f, rx_stat->mcastPktsRxOK);
2290 qemu_put_be64(f, rx_stat->mcastBytesRxOK);
2291 qemu_put_be64(f, rx_stat->bcastPktsRxOK);
2292 qemu_put_be64(f, rx_stat->bcastBytesRxOK);
2293 qemu_put_be64(f, rx_stat->pktsRxOutOfBuf);
2294 qemu_put_be64(f, rx_stat->pktsRxError);
2295}
2296
2297static int vmxnet3_get_rxq_descr(QEMUFile *f, void *pv, size_t size)
2298{
2299 Vmxnet3RxqDescr *r = pv;
2300 int i;
2301
2302 for (i = 0; i < VMXNET3_RX_RINGS_PER_QUEUE; i++) {
2303 vmxnet3_get_ring_from_file(f, &r->rx_ring[i]);
2304 }
2305
2306 vmxnet3_get_ring_from_file(f, &r->comp_ring);
2307 r->intr_idx = qemu_get_byte(f);
2308 r->rx_stats_pa = qemu_get_be64(f);
2309
2310 vmxnet3_get_rx_stats_from_file(f, &r->rxq_stats);
2311
2312 return 0;
2313}
2314
2315static void vmxnet3_put_rxq_descr(QEMUFile *f, void *pv, size_t size)
2316{
2317 Vmxnet3RxqDescr *r = pv;
2318 int i;
2319
2320 for (i = 0; i < VMXNET3_RX_RINGS_PER_QUEUE; i++) {
2321 vmxnet3_put_ring_to_file(f, &r->rx_ring[i]);
2322 }
2323
2324 vmxnet3_put_ring_to_file(f, &r->comp_ring);
2325 qemu_put_byte(f, r->intr_idx);
2326 qemu_put_be64(f, r->rx_stats_pa);
2327 vmxnet3_put_rx_stats_to_file(f, &r->rxq_stats);
2328}
2329
2330static int vmxnet3_post_load(void *opaque, int version_id)
2331{
2332 VMXNET3State *s = opaque;
2333 PCIDevice *d = PCI_DEVICE(s);
2334
2335 vmxnet_tx_pkt_init(&s->tx_pkt, s->max_tx_frags, s->peer_has_vhdr);
2336 vmxnet_rx_pkt_init(&s->rx_pkt, s->peer_has_vhdr);
2337
2338 if (s->msix_used) {
2339 if (!vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS)) {
2340 VMW_WRPRN("Failed to re-use MSI-X vectors");
2341 msix_uninit(d, &s->msix_bar, &s->msix_bar);
2342 s->msix_used = false;
2343 return -1;
2344 }
2345 }
2346
2347 return 0;
2348}
2349
2350const VMStateInfo rxq_descr_info = {
2351 .name = "rxq_descr",
2352 .get = vmxnet3_get_rxq_descr,
2353 .put = vmxnet3_put_rxq_descr
2354};
2355
2356static int vmxnet3_get_int_state(QEMUFile *f, void *pv, size_t size)
2357{
2358 Vmxnet3IntState *r = pv;
2359
2360 r->is_masked = qemu_get_byte(f);
2361 r->is_pending = qemu_get_byte(f);
2362 r->is_asserted = qemu_get_byte(f);
2363
2364 return 0;
2365}
2366
2367static void vmxnet3_put_int_state(QEMUFile *f, void *pv, size_t size)
2368{
2369 Vmxnet3IntState *r = pv;
2370
2371 qemu_put_byte(f, r->is_masked);
2372 qemu_put_byte(f, r->is_pending);
2373 qemu_put_byte(f, r->is_asserted);
2374}
2375
2376const VMStateInfo int_state_info = {
2377 .name = "int_state",
2378 .get = vmxnet3_get_int_state,
2379 .put = vmxnet3_put_int_state
2380};
2381
2382static const VMStateDescription vmstate_vmxnet3 = {
2383 .name = "vmxnet3",
2384 .version_id = 1,
2385 .minimum_version_id = 1,
2386 .minimum_version_id_old = 1,
2387 .pre_save = vmxnet3_pre_save,
2388 .post_load = vmxnet3_post_load,
2389 .fields = (VMStateField[]) {
2390 VMSTATE_PCI_DEVICE(parent_obj, VMXNET3State),
2391 VMSTATE_BOOL(rx_packets_compound, VMXNET3State),
2392 VMSTATE_BOOL(rx_vlan_stripping, VMXNET3State),
2393 VMSTATE_BOOL(lro_supported, VMXNET3State),
2394 VMSTATE_UINT32(rx_mode, VMXNET3State),
2395 VMSTATE_UINT32(mcast_list_len, VMXNET3State),
2396 VMSTATE_UINT32(mcast_list_buff_size, VMXNET3State),
2397 VMSTATE_UINT32_ARRAY(vlan_table, VMXNET3State, VMXNET3_VFT_SIZE),
2398 VMSTATE_UINT32(mtu, VMXNET3State),
2399 VMSTATE_UINT16(max_rx_frags, VMXNET3State),
2400 VMSTATE_UINT32(max_tx_frags, VMXNET3State),
2401 VMSTATE_UINT8(event_int_idx, VMXNET3State),
2402 VMSTATE_BOOL(auto_int_masking, VMXNET3State),
2403 VMSTATE_UINT8(txq_num, VMXNET3State),
2404 VMSTATE_UINT8(rxq_num, VMXNET3State),
2405 VMSTATE_UINT32(device_active, VMXNET3State),
2406 VMSTATE_UINT32(last_command, VMXNET3State),
2407 VMSTATE_UINT32(link_status_and_speed, VMXNET3State),
2408 VMSTATE_UINT32(temp_mac, VMXNET3State),
2409 VMSTATE_UINT64(drv_shmem, VMXNET3State),
2410 VMSTATE_UINT64(temp_shared_guest_driver_memory, VMXNET3State),
2411
2412 VMSTATE_ARRAY(txq_descr, VMXNET3State,
2413 VMXNET3_DEVICE_MAX_TX_QUEUES, 0, txq_descr_info,
2414 Vmxnet3TxqDescr),
2415 VMSTATE_ARRAY(rxq_descr, VMXNET3State,
2416 VMXNET3_DEVICE_MAX_RX_QUEUES, 0, rxq_descr_info,
2417 Vmxnet3RxqDescr),
2418 VMSTATE_ARRAY(interrupt_states, VMXNET3State, VMXNET3_MAX_INTRS,
2419 0, int_state_info, Vmxnet3IntState),
2420
2421 VMSTATE_END_OF_LIST()
2422 },
2423 .subsections = (VMStateSubsection[]) {
2424 {
2425 .vmsd = &vmxstate_vmxnet3_mcast_list,
2426 .needed = vmxnet3_mc_list_needed
2427 },
2428 {
2429 /* empty element. */
2430 }
2431 }
2432};
2433
2434static void
2435vmxnet3_write_config(PCIDevice *pci_dev, uint32_t addr, uint32_t val, int len)
2436{
2437 pci_default_write_config(pci_dev, addr, val, len);
2438 msix_write_config(pci_dev, addr, val, len);
2439 msi_write_config(pci_dev, addr, val, len);
2440}
2441
2442static Property vmxnet3_properties[] = {
2443 DEFINE_NIC_PROPERTIES(VMXNET3State, conf),
2444 DEFINE_PROP_END_OF_LIST(),
2445};
2446
2447static void vmxnet3_class_init(ObjectClass *class, void *data)
2448{
2449 DeviceClass *dc = DEVICE_CLASS(class);
2450 PCIDeviceClass *c = PCI_DEVICE_CLASS(class);
2451
2452 c->init = vmxnet3_pci_init;
2453 c->exit = vmxnet3_pci_uninit;
2454 c->vendor_id = PCI_VENDOR_ID_VMWARE;
2455 c->device_id = PCI_DEVICE_ID_VMWARE_VMXNET3;
2456 c->revision = PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION;
2457 c->class_id = PCI_CLASS_NETWORK_ETHERNET;
2458 c->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE;
2459 c->subsystem_id = PCI_DEVICE_ID_VMWARE_VMXNET3;
2460 c->config_write = vmxnet3_write_config,
2461 dc->desc = "VMWare Paravirtualized Ethernet v3";
2462 dc->reset = vmxnet3_qdev_reset;
2463 dc->vmsd = &vmstate_vmxnet3;
2464 dc->props = vmxnet3_properties;
125ee0ed 2465 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
786fd2b0
DF		 2466}
2467
2468static const TypeInfo vmxnet3_info = {
2469 .name = TYPE_VMXNET3,
2470 .parent = TYPE_PCI_DEVICE,
2471 .instance_size = sizeof(VMXNET3State),
2472 .class_init = vmxnet3_class_init,
2473};
2474
2475static void vmxnet3_register_types(void)
2476{
2477 VMW_CBPRN("vmxnet3_register_types called...");
2478 type_register_static(&vmxnet3_info);
2479}
2480
2481type_init(vmxnet3_register_types)
Empty description
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