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 "hw/qdev-properties.h" 22 #include "net/tap.h" 23 #include "net/checksum.h" 24 #include "sysemu/sysemu.h" 25 #include "qemu/bswap.h" 26 #include "qemu/log.h" 27 #include "qemu/module.h" 28 #include "hw/pci/msix.h" 29 #include "hw/pci/msi.h" 30 #include "migration/register.h" 31 #include "migration/vmstate.h" 32 33 #include "vmxnet3.h" 34 #include "vmxnet3_defs.h" 35 #include "vmxnet_debug.h" 36 #include "vmware_utils.h" 37 #include "net_tx_pkt.h" 38 #include "net_rx_pkt.h" 39 #include "qom/object.h" 40 41 #define PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION 0x1 42 #define VMXNET3_MSIX_BAR_SIZE 0x2000 43 44 /* Compatibility flags for migration */ 45 #define VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT 0 46 #define VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS \ 47 (1 << VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT) 48 #define VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT 1 49 #define VMXNET3_COMPAT_FLAG_DISABLE_PCIE \ 50 (1 << VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT) 51 52 #define VMXNET3_EXP_EP_OFFSET (0x48) 53 #define VMXNET3_MSI_OFFSET(s) \ 54 ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0x50 : 0x84) 55 #define VMXNET3_MSIX_OFFSET(s) \ 56 ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0 : 0x9c) 57 #define VMXNET3_DSN_OFFSET (0x100) 58 59 #define VMXNET3_BAR0_IDX (0) 60 #define VMXNET3_BAR1_IDX (1) 61 #define VMXNET3_MSIX_BAR_IDX (2) 62 63 #define VMXNET3_OFF_MSIX_TABLE (0x000) 64 #define VMXNET3_OFF_MSIX_PBA(s) \ 65 ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0x800 : 0x1000) 66 67 /* Link speed in Mbps should be shifted by 16 */ 68 #define VMXNET3_LINK_SPEED (1000 << 16) 69 70 /* Link status: 1 - up, 0 - down. */ 71 #define VMXNET3_LINK_STATUS_UP 0x1 72 73 /* Least significant bit should be set for revision and version */ 74 #define VMXNET3_UPT_REVISION 0x1 75 #define VMXNET3_DEVICE_REVISION 0x1 76 77 /* Number of interrupt vectors for non-MSIx modes */ 78 #define VMXNET3_MAX_NMSIX_INTRS (1) 79 80 /* Macros for rings descriptors access */ 81 #define VMXNET3_READ_TX_QUEUE_DESCR8(_d, dpa, field) \ 82 (vmw_shmem_ld8(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) 83 84 #define VMXNET3_WRITE_TX_QUEUE_DESCR8(_d, dpa, field, value) \ 85 (vmw_shmem_st8(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field, value))) 86 87 #define VMXNET3_READ_TX_QUEUE_DESCR32(_d, dpa, field) \ 88 (vmw_shmem_ld32(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) 89 90 #define VMXNET3_WRITE_TX_QUEUE_DESCR32(_d, dpa, field, value) \ 91 (vmw_shmem_st32(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value)) 92 93 #define VMXNET3_READ_TX_QUEUE_DESCR64(_d, dpa, field) \ 94 (vmw_shmem_ld64(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) 95 96 #define VMXNET3_WRITE_TX_QUEUE_DESCR64(_d, dpa, field, value) \ 97 (vmw_shmem_st64(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value)) 98 99 #define VMXNET3_READ_RX_QUEUE_DESCR64(_d, dpa, field) \ 100 (vmw_shmem_ld64(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field))) 101 102 #define VMXNET3_READ_RX_QUEUE_DESCR32(_d, dpa, field) \ 103 (vmw_shmem_ld32(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field))) 104 105 #define VMXNET3_WRITE_RX_QUEUE_DESCR64(_d, dpa, field, value) \ 106 (vmw_shmem_st64(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value)) 107 108 #define VMXNET3_WRITE_RX_QUEUE_DESCR8(_d, dpa, field, value) \ 109 (vmw_shmem_st8(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value)) 110 111 /* Macros for guest driver shared area access */ 112 #define VMXNET3_READ_DRV_SHARED64(_d, shpa, field) \ 113 (vmw_shmem_ld64(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field))) 114 115 #define VMXNET3_READ_DRV_SHARED32(_d, shpa, field) \ 116 (vmw_shmem_ld32(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field))) 117 118 #define VMXNET3_WRITE_DRV_SHARED32(_d, shpa, field, val) \ 119 (vmw_shmem_st32(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field), val)) 120 121 #define VMXNET3_READ_DRV_SHARED16(_d, shpa, field) \ 122 (vmw_shmem_ld16(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field))) 123 124 #define VMXNET3_READ_DRV_SHARED8(_d, shpa, field) \ 125 (vmw_shmem_ld8(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field))) 126 127 #define VMXNET3_READ_DRV_SHARED(_d, shpa, field, b, l) \ 128 (vmw_shmem_read(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field), b, l)) 129 130 #define VMXNET_FLAG_IS_SET(field, flag) (((field) & (flag)) == (flag)) 131 132 struct VMXNET3Class { 133 PCIDeviceClass parent_class; 134 DeviceRealize parent_dc_realize; 135 }; 136 typedef struct VMXNET3Class VMXNET3Class; 137 138 DECLARE_CLASS_CHECKERS(VMXNET3Class, VMXNET3_DEVICE, 139 TYPE_VMXNET3) 140 141 static inline void vmxnet3_ring_init(PCIDevice *d, 142 Vmxnet3Ring *ring, 143 hwaddr pa, 144 uint32_t size, 145 uint32_t cell_size, 146 bool zero_region) 147 { 148 ring->pa = pa; 149 ring->size = size; 150 ring->cell_size = cell_size; 151 ring->gen = VMXNET3_INIT_GEN; 152 ring->next = 0; 153 154 if (zero_region) { 155 vmw_shmem_set(d, pa, 0, size * cell_size); 156 } 157 } 158 159 #define VMXNET3_RING_DUMP(macro, ring_name, ridx, r) \ 160 macro("%s#%d: base %" PRIx64 " size %u cell_size %u gen %d next %u", \ 161 (ring_name), (ridx), \ 162 (r)->pa, (r)->size, (r)->cell_size, (r)->gen, (r)->next) 163 164 static inline void vmxnet3_ring_inc(Vmxnet3Ring *ring) 165 { 166 if (++ring->next >= ring->size) { 167 ring->next = 0; 168 ring->gen ^= 1; 169 } 170 } 171 172 static inline void vmxnet3_ring_dec(Vmxnet3Ring *ring) 173 { 174 if (ring->next-- == 0) { 175 ring->next = ring->size - 1; 176 ring->gen ^= 1; 177 } 178 } 179 180 static inline hwaddr vmxnet3_ring_curr_cell_pa(Vmxnet3Ring *ring) 181 { 182 return ring->pa + ring->next * ring->cell_size; 183 } 184 185 static inline void vmxnet3_ring_read_curr_cell(PCIDevice *d, Vmxnet3Ring *ring, 186 void *buff) 187 { 188 vmw_shmem_read(d, vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size); 189 } 190 191 static inline void vmxnet3_ring_write_curr_cell(PCIDevice *d, Vmxnet3Ring *ring, 192 void *buff) 193 { 194 vmw_shmem_write(d, vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size); 195 } 196 197 static inline size_t vmxnet3_ring_curr_cell_idx(Vmxnet3Ring *ring) 198 { 199 return ring->next; 200 } 201 202 static inline uint8_t vmxnet3_ring_curr_gen(Vmxnet3Ring *ring) 203 { 204 return ring->gen; 205 } 206 207 /* Debug trace-related functions */ 208 static inline void 209 vmxnet3_dump_tx_descr(struct Vmxnet3_TxDesc *descr) 210 { 211 VMW_PKPRN("TX DESCR: " 212 "addr %" PRIx64 ", len: %d, gen: %d, rsvd: %d, " 213 "dtype: %d, ext1: %d, msscof: %d, hlen: %d, om: %d, " 214 "eop: %d, cq: %d, ext2: %d, ti: %d, tci: %d", 215 descr->addr, descr->len, descr->gen, descr->rsvd, 216 descr->dtype, descr->ext1, descr->msscof, descr->hlen, descr->om, 217 descr->eop, descr->cq, descr->ext2, descr->ti, descr->tci); 218 } 219 220 static inline void 221 vmxnet3_dump_virt_hdr(struct virtio_net_hdr *vhdr) 222 { 223 VMW_PKPRN("VHDR: flags 0x%x, gso_type: 0x%x, hdr_len: %d, gso_size: %d, " 224 "csum_start: %d, csum_offset: %d", 225 vhdr->flags, vhdr->gso_type, vhdr->hdr_len, vhdr->gso_size, 226 vhdr->csum_start, vhdr->csum_offset); 227 } 228 229 static inline void 230 vmxnet3_dump_rx_descr(struct Vmxnet3_RxDesc *descr) 231 { 232 VMW_PKPRN("RX DESCR: addr %" PRIx64 ", len: %d, gen: %d, rsvd: %d, " 233 "dtype: %d, ext1: %d, btype: %d", 234 descr->addr, descr->len, descr->gen, 235 descr->rsvd, descr->dtype, descr->ext1, descr->btype); 236 } 237 238 /* Interrupt management */ 239 240 /* 241 * This function returns sign whether interrupt line is in asserted state 242 * This depends on the type of interrupt used. For INTX interrupt line will 243 * be asserted until explicit deassertion, for MSI(X) interrupt line will 244 * be deasserted automatically due to notification semantics of the MSI(X) 245 * interrupts 246 */ 247 static bool _vmxnet3_assert_interrupt_line(VMXNET3State *s, uint32_t int_idx) 248 { 249 PCIDevice *d = PCI_DEVICE(s); 250 251 if (s->msix_used && msix_enabled(d)) { 252 VMW_IRPRN("Sending MSI-X notification for vector %u", int_idx); 253 msix_notify(d, int_idx); 254 return false; 255 } 256 if (msi_enabled(d)) { 257 VMW_IRPRN("Sending MSI notification for vector %u", int_idx); 258 msi_notify(d, int_idx); 259 return false; 260 } 261 262 VMW_IRPRN("Asserting line for interrupt %u", int_idx); 263 pci_irq_assert(d); 264 return true; 265 } 266 267 static void _vmxnet3_deassert_interrupt_line(VMXNET3State *s, int lidx) 268 { 269 PCIDevice *d = PCI_DEVICE(s); 270 271 /* 272 * This function should never be called for MSI(X) interrupts 273 * because deassertion never required for message interrupts 274 */ 275 assert(!s->msix_used || !msix_enabled(d)); 276 /* 277 * This function should never be called for MSI(X) interrupts 278 * because deassertion never required for message interrupts 279 */ 280 assert(!msi_enabled(d)); 281 282 VMW_IRPRN("Deasserting line for interrupt %u", lidx); 283 pci_irq_deassert(d); 284 } 285 286 static void vmxnet3_update_interrupt_line_state(VMXNET3State *s, int lidx) 287 { 288 if (!s->interrupt_states[lidx].is_pending && 289 s->interrupt_states[lidx].is_asserted) { 290 VMW_IRPRN("New interrupt line state for index %d is DOWN", lidx); 291 _vmxnet3_deassert_interrupt_line(s, lidx); 292 s->interrupt_states[lidx].is_asserted = false; 293 return; 294 } 295 296 if (s->interrupt_states[lidx].is_pending && 297 !s->interrupt_states[lidx].is_masked && 298 !s->interrupt_states[lidx].is_asserted) { 299 VMW_IRPRN("New interrupt line state for index %d is UP", lidx); 300 s->interrupt_states[lidx].is_asserted = 301 _vmxnet3_assert_interrupt_line(s, lidx); 302 s->interrupt_states[lidx].is_pending = false; 303 return; 304 } 305 } 306 307 static void vmxnet3_trigger_interrupt(VMXNET3State *s, int lidx) 308 { 309 PCIDevice *d = PCI_DEVICE(s); 310 s->interrupt_states[lidx].is_pending = true; 311 vmxnet3_update_interrupt_line_state(s, lidx); 312 313 if (s->msix_used && msix_enabled(d) && s->auto_int_masking) { 314 goto do_automask; 315 } 316 317 if (msi_enabled(d) && s->auto_int_masking) { 318 goto do_automask; 319 } 320 321 return; 322 323 do_automask: 324 s->interrupt_states[lidx].is_masked = true; 325 vmxnet3_update_interrupt_line_state(s, lidx); 326 } 327 328 static bool vmxnet3_interrupt_asserted(VMXNET3State *s, int lidx) 329 { 330 return s->interrupt_states[lidx].is_asserted; 331 } 332 333 static void vmxnet3_clear_interrupt(VMXNET3State *s, int int_idx) 334 { 335 s->interrupt_states[int_idx].is_pending = false; 336 if (s->auto_int_masking) { 337 s->interrupt_states[int_idx].is_masked = true; 338 } 339 vmxnet3_update_interrupt_line_state(s, int_idx); 340 } 341 342 static void 343 vmxnet3_on_interrupt_mask_changed(VMXNET3State *s, int lidx, bool is_masked) 344 { 345 s->interrupt_states[lidx].is_masked = is_masked; 346 vmxnet3_update_interrupt_line_state(s, lidx); 347 } 348 349 static bool vmxnet3_verify_driver_magic(PCIDevice *d, hwaddr dshmem) 350 { 351 return (VMXNET3_READ_DRV_SHARED32(d, dshmem, magic) == VMXNET3_REV1_MAGIC); 352 } 353 354 #define VMXNET3_GET_BYTE(x, byte_num) (((x) >> (byte_num)*8) & 0xFF) 355 #define VMXNET3_MAKE_BYTE(byte_num, val) \ 356 (((uint32_t)((val) & 0xFF)) << (byte_num)*8) 357 358 static void vmxnet3_set_variable_mac(VMXNET3State *s, uint32_t h, uint32_t l) 359 { 360 s->conf.macaddr.a[0] = VMXNET3_GET_BYTE(l, 0); 361 s->conf.macaddr.a[1] = VMXNET3_GET_BYTE(l, 1); 362 s->conf.macaddr.a[2] = VMXNET3_GET_BYTE(l, 2); 363 s->conf.macaddr.a[3] = VMXNET3_GET_BYTE(l, 3); 364 s->conf.macaddr.a[4] = VMXNET3_GET_BYTE(h, 0); 365 s->conf.macaddr.a[5] = VMXNET3_GET_BYTE(h, 1); 366 367 VMW_CFPRN("Variable MAC: " MAC_FMT, MAC_ARG(s->conf.macaddr.a)); 368 369 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); 370 } 371 372 static uint64_t vmxnet3_get_mac_low(MACAddr *addr) 373 { 374 return VMXNET3_MAKE_BYTE(0, addr->a[0]) | 375 VMXNET3_MAKE_BYTE(1, addr->a[1]) | 376 VMXNET3_MAKE_BYTE(2, addr->a[2]) | 377 VMXNET3_MAKE_BYTE(3, addr->a[3]); 378 } 379 380 static uint64_t vmxnet3_get_mac_high(MACAddr *addr) 381 { 382 return VMXNET3_MAKE_BYTE(0, addr->a[4]) | 383 VMXNET3_MAKE_BYTE(1, addr->a[5]); 384 } 385 386 static void 387 vmxnet3_inc_tx_consumption_counter(VMXNET3State *s, int qidx) 388 { 389 vmxnet3_ring_inc(&s->txq_descr[qidx].tx_ring); 390 } 391 392 static inline void 393 vmxnet3_inc_rx_consumption_counter(VMXNET3State *s, int qidx, int ridx) 394 { 395 vmxnet3_ring_inc(&s->rxq_descr[qidx].rx_ring[ridx]); 396 } 397 398 static inline void 399 vmxnet3_inc_tx_completion_counter(VMXNET3State *s, int qidx) 400 { 401 vmxnet3_ring_inc(&s->txq_descr[qidx].comp_ring); 402 } 403 404 static void 405 vmxnet3_inc_rx_completion_counter(VMXNET3State *s, int qidx) 406 { 407 vmxnet3_ring_inc(&s->rxq_descr[qidx].comp_ring); 408 } 409 410 static void 411 vmxnet3_dec_rx_completion_counter(VMXNET3State *s, int qidx) 412 { 413 vmxnet3_ring_dec(&s->rxq_descr[qidx].comp_ring); 414 } 415 416 static void vmxnet3_complete_packet(VMXNET3State *s, int qidx, uint32_t tx_ridx) 417 { 418 struct Vmxnet3_TxCompDesc txcq_descr; 419 PCIDevice *d = PCI_DEVICE(s); 420 421 VMXNET3_RING_DUMP(VMW_RIPRN, "TXC", qidx, &s->txq_descr[qidx].comp_ring); 422 423 memset(&txcq_descr, 0, sizeof(txcq_descr)); 424 txcq_descr.txdIdx = tx_ridx; 425 txcq_descr.gen = vmxnet3_ring_curr_gen(&s->txq_descr[qidx].comp_ring); 426 txcq_descr.val1 = cpu_to_le32(txcq_descr.val1); 427 txcq_descr.val2 = cpu_to_le32(txcq_descr.val2); 428 vmxnet3_ring_write_curr_cell(d, &s->txq_descr[qidx].comp_ring, &txcq_descr); 429 430 /* Flush changes in TX descriptor before changing the counter value */ 431 smp_wmb(); 432 433 vmxnet3_inc_tx_completion_counter(s, qidx); 434 vmxnet3_trigger_interrupt(s, s->txq_descr[qidx].intr_idx); 435 } 436 437 static bool 438 vmxnet3_setup_tx_offloads(VMXNET3State *s) 439 { 440 switch (s->offload_mode) { 441 case VMXNET3_OM_NONE: 442 return net_tx_pkt_build_vheader(s->tx_pkt, false, false, 0); 443 444 case VMXNET3_OM_CSUM: 445 VMW_PKPRN("L4 CSO requested\n"); 446 return net_tx_pkt_build_vheader(s->tx_pkt, false, true, 0); 447 448 case VMXNET3_OM_TSO: 449 VMW_PKPRN("GSO offload requested."); 450 if (!net_tx_pkt_build_vheader(s->tx_pkt, true, true, 451 s->cso_or_gso_size)) { 452 return false; 453 } 454 net_tx_pkt_update_ip_checksums(s->tx_pkt); 455 break; 456 457 default: 458 g_assert_not_reached(); 459 return false; 460 } 461 462 return true; 463 } 464 465 static void 466 vmxnet3_tx_retrieve_metadata(VMXNET3State *s, 467 const struct Vmxnet3_TxDesc *txd) 468 { 469 s->offload_mode = txd->om; 470 s->cso_or_gso_size = txd->msscof; 471 s->tci = txd->tci; 472 s->needs_vlan = txd->ti; 473 } 474 475 typedef enum { 476 VMXNET3_PKT_STATUS_OK, 477 VMXNET3_PKT_STATUS_ERROR, 478 VMXNET3_PKT_STATUS_DISCARD,/* only for tx */ 479 VMXNET3_PKT_STATUS_OUT_OF_BUF /* only for rx */ 480 } Vmxnet3PktStatus; 481 482 static void 483 vmxnet3_on_tx_done_update_stats(VMXNET3State *s, int qidx, 484 Vmxnet3PktStatus status) 485 { 486 size_t tot_len = net_tx_pkt_get_total_len(s->tx_pkt); 487 struct UPT1_TxStats *stats = &s->txq_descr[qidx].txq_stats; 488 489 switch (status) { 490 case VMXNET3_PKT_STATUS_OK: 491 switch (net_tx_pkt_get_packet_type(s->tx_pkt)) { 492 case ETH_PKT_BCAST: 493 stats->bcastPktsTxOK++; 494 stats->bcastBytesTxOK += tot_len; 495 break; 496 case ETH_PKT_MCAST: 497 stats->mcastPktsTxOK++; 498 stats->mcastBytesTxOK += tot_len; 499 break; 500 case ETH_PKT_UCAST: 501 stats->ucastPktsTxOK++; 502 stats->ucastBytesTxOK += tot_len; 503 break; 504 default: 505 g_assert_not_reached(); 506 } 507 508 if (s->offload_mode == VMXNET3_OM_TSO) { 509 /* 510 * According to VMWARE headers this statistic is a number 511 * of packets after segmentation but since we don't have 512 * this information in QEMU model, the best we can do is to 513 * provide number of non-segmented packets 514 */ 515 stats->TSOPktsTxOK++; 516 stats->TSOBytesTxOK += tot_len; 517 } 518 break; 519 520 case VMXNET3_PKT_STATUS_DISCARD: 521 stats->pktsTxDiscard++; 522 break; 523 524 case VMXNET3_PKT_STATUS_ERROR: 525 stats->pktsTxError++; 526 break; 527 528 default: 529 g_assert_not_reached(); 530 } 531 } 532 533 static void 534 vmxnet3_on_rx_done_update_stats(VMXNET3State *s, 535 int qidx, 536 Vmxnet3PktStatus status) 537 { 538 struct UPT1_RxStats *stats = &s->rxq_descr[qidx].rxq_stats; 539 size_t tot_len = net_rx_pkt_get_total_len(s->rx_pkt); 540 541 switch (status) { 542 case VMXNET3_PKT_STATUS_OUT_OF_BUF: 543 stats->pktsRxOutOfBuf++; 544 break; 545 546 case VMXNET3_PKT_STATUS_ERROR: 547 stats->pktsRxError++; 548 break; 549 case VMXNET3_PKT_STATUS_OK: 550 switch (net_rx_pkt_get_packet_type(s->rx_pkt)) { 551 case ETH_PKT_BCAST: 552 stats->bcastPktsRxOK++; 553 stats->bcastBytesRxOK += tot_len; 554 break; 555 case ETH_PKT_MCAST: 556 stats->mcastPktsRxOK++; 557 stats->mcastBytesRxOK += tot_len; 558 break; 559 case ETH_PKT_UCAST: 560 stats->ucastPktsRxOK++; 561 stats->ucastBytesRxOK += tot_len; 562 break; 563 default: 564 g_assert_not_reached(); 565 } 566 567 if (tot_len > s->mtu) { 568 stats->LROPktsRxOK++; 569 stats->LROBytesRxOK += tot_len; 570 } 571 break; 572 default: 573 g_assert_not_reached(); 574 } 575 } 576 577 static inline void 578 vmxnet3_ring_read_curr_txdesc(PCIDevice *pcidev, Vmxnet3Ring *ring, 579 struct Vmxnet3_TxDesc *txd) 580 { 581 vmxnet3_ring_read_curr_cell(pcidev, ring, txd); 582 txd->addr = le64_to_cpu(txd->addr); 583 txd->val1 = le32_to_cpu(txd->val1); 584 txd->val2 = le32_to_cpu(txd->val2); 585 } 586 587 static inline bool 588 vmxnet3_pop_next_tx_descr(VMXNET3State *s, 589 int qidx, 590 struct Vmxnet3_TxDesc *txd, 591 uint32_t *descr_idx) 592 { 593 Vmxnet3Ring *ring = &s->txq_descr[qidx].tx_ring; 594 PCIDevice *d = PCI_DEVICE(s); 595 596 vmxnet3_ring_read_curr_txdesc(d, ring, txd); 597 if (txd->gen == vmxnet3_ring_curr_gen(ring)) { 598 /* Only read after generation field verification */ 599 smp_rmb(); 600 /* Re-read to be sure we got the latest version */ 601 vmxnet3_ring_read_curr_txdesc(d, ring, txd); 602 VMXNET3_RING_DUMP(VMW_RIPRN, "TX", qidx, ring); 603 *descr_idx = vmxnet3_ring_curr_cell_idx(ring); 604 vmxnet3_inc_tx_consumption_counter(s, qidx); 605 return true; 606 } 607 608 return false; 609 } 610 611 static bool 612 vmxnet3_send_packet(VMXNET3State *s, uint32_t qidx) 613 { 614 Vmxnet3PktStatus status = VMXNET3_PKT_STATUS_OK; 615 616 if (!vmxnet3_setup_tx_offloads(s)) { 617 status = VMXNET3_PKT_STATUS_ERROR; 618 goto func_exit; 619 } 620 621 /* debug prints */ 622 vmxnet3_dump_virt_hdr(net_tx_pkt_get_vhdr(s->tx_pkt)); 623 net_tx_pkt_dump(s->tx_pkt); 624 625 if (!net_tx_pkt_send(s->tx_pkt, qemu_get_queue(s->nic))) { 626 status = VMXNET3_PKT_STATUS_DISCARD; 627 goto func_exit; 628 } 629 630 func_exit: 631 vmxnet3_on_tx_done_update_stats(s, qidx, status); 632 return (status == VMXNET3_PKT_STATUS_OK); 633 } 634 635 static void vmxnet3_process_tx_queue(VMXNET3State *s, int qidx) 636 { 637 struct Vmxnet3_TxDesc txd; 638 uint32_t txd_idx; 639 uint32_t data_len; 640 hwaddr data_pa; 641 642 for (;;) { 643 if (!vmxnet3_pop_next_tx_descr(s, qidx, &txd, &txd_idx)) { 644 break; 645 } 646 647 vmxnet3_dump_tx_descr(&txd); 648 649 if (!s->skip_current_tx_pkt) { 650 data_len = (txd.len > 0) ? txd.len : VMXNET3_MAX_TX_BUF_SIZE; 651 data_pa = txd.addr; 652 653 if (!net_tx_pkt_add_raw_fragment_pci(s->tx_pkt, PCI_DEVICE(s), 654 data_pa, data_len)) { 655 s->skip_current_tx_pkt = true; 656 } 657 } 658 659 if (s->tx_sop) { 660 vmxnet3_tx_retrieve_metadata(s, &txd); 661 s->tx_sop = false; 662 } 663 664 if (txd.eop) { 665 if (!s->skip_current_tx_pkt && net_tx_pkt_parse(s->tx_pkt)) { 666 if (s->needs_vlan) { 667 net_tx_pkt_setup_vlan_header(s->tx_pkt, s->tci); 668 } 669 670 vmxnet3_send_packet(s, qidx); 671 } else { 672 vmxnet3_on_tx_done_update_stats(s, qidx, 673 VMXNET3_PKT_STATUS_ERROR); 674 } 675 676 vmxnet3_complete_packet(s, qidx, txd_idx); 677 s->tx_sop = true; 678 s->skip_current_tx_pkt = false; 679 net_tx_pkt_reset(s->tx_pkt, 680 net_tx_pkt_unmap_frag_pci, PCI_DEVICE(s)); 681 } 682 } 683 684 net_tx_pkt_reset(s->tx_pkt, net_tx_pkt_unmap_frag_pci, PCI_DEVICE(s)); 685 } 686 687 static inline void 688 vmxnet3_read_next_rx_descr(VMXNET3State *s, int qidx, int ridx, 689 struct Vmxnet3_RxDesc *dbuf, uint32_t *didx) 690 { 691 PCIDevice *d = PCI_DEVICE(s); 692 693 Vmxnet3Ring *ring = &s->rxq_descr[qidx].rx_ring[ridx]; 694 *didx = vmxnet3_ring_curr_cell_idx(ring); 695 vmxnet3_ring_read_curr_cell(d, ring, dbuf); 696 dbuf->addr = le64_to_cpu(dbuf->addr); 697 dbuf->val1 = le32_to_cpu(dbuf->val1); 698 dbuf->ext1 = le32_to_cpu(dbuf->ext1); 699 } 700 701 static inline uint8_t 702 vmxnet3_get_rx_ring_gen(VMXNET3State *s, int qidx, int ridx) 703 { 704 return s->rxq_descr[qidx].rx_ring[ridx].gen; 705 } 706 707 static inline hwaddr 708 vmxnet3_pop_rxc_descr(VMXNET3State *s, int qidx, uint32_t *descr_gen) 709 { 710 uint8_t ring_gen; 711 struct Vmxnet3_RxCompDesc rxcd; 712 713 hwaddr daddr = 714 vmxnet3_ring_curr_cell_pa(&s->rxq_descr[qidx].comp_ring); 715 716 pci_dma_read(PCI_DEVICE(s), 717 daddr, &rxcd, sizeof(struct Vmxnet3_RxCompDesc)); 718 rxcd.val1 = le32_to_cpu(rxcd.val1); 719 rxcd.val2 = le32_to_cpu(rxcd.val2); 720 rxcd.val3 = le32_to_cpu(rxcd.val3); 721 ring_gen = vmxnet3_ring_curr_gen(&s->rxq_descr[qidx].comp_ring); 722 723 if (rxcd.gen != ring_gen) { 724 *descr_gen = ring_gen; 725 vmxnet3_inc_rx_completion_counter(s, qidx); 726 return daddr; 727 } 728 729 return 0; 730 } 731 732 static inline void 733 vmxnet3_revert_rxc_descr(VMXNET3State *s, int qidx) 734 { 735 vmxnet3_dec_rx_completion_counter(s, qidx); 736 } 737 738 #define RXQ_IDX (0) 739 #define RX_HEAD_BODY_RING (0) 740 #define RX_BODY_ONLY_RING (1) 741 742 static bool 743 vmxnet3_get_next_head_rx_descr(VMXNET3State *s, 744 struct Vmxnet3_RxDesc *descr_buf, 745 uint32_t *descr_idx, 746 uint32_t *ridx) 747 { 748 for (;;) { 749 uint32_t ring_gen; 750 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, 751 descr_buf, descr_idx); 752 753 /* If no more free descriptors - return */ 754 ring_gen = vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_HEAD_BODY_RING); 755 if (descr_buf->gen != ring_gen) { 756 return false; 757 } 758 759 /* Only read after generation field verification */ 760 smp_rmb(); 761 /* Re-read to be sure we got the latest version */ 762 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, 763 descr_buf, descr_idx); 764 765 /* Mark current descriptor as used/skipped */ 766 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_HEAD_BODY_RING); 767 768 /* If this is what we are looking for - return */ 769 if (descr_buf->btype == VMXNET3_RXD_BTYPE_HEAD) { 770 *ridx = RX_HEAD_BODY_RING; 771 return true; 772 } 773 } 774 } 775 776 static bool 777 vmxnet3_get_next_body_rx_descr(VMXNET3State *s, 778 struct Vmxnet3_RxDesc *d, 779 uint32_t *didx, 780 uint32_t *ridx) 781 { 782 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, d, didx); 783 784 /* Try to find corresponding descriptor in head/body ring */ 785 if (d->gen == vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_HEAD_BODY_RING)) { 786 /* Only read after generation field verification */ 787 smp_rmb(); 788 /* Re-read to be sure we got the latest version */ 789 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, d, didx); 790 if (d->btype == VMXNET3_RXD_BTYPE_BODY) { 791 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_HEAD_BODY_RING); 792 *ridx = RX_HEAD_BODY_RING; 793 return true; 794 } 795 } 796 797 /* 798 * If there is no free descriptors on head/body ring or next free 799 * descriptor is a head descriptor switch to body only ring 800 */ 801 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_BODY_ONLY_RING, d, didx); 802 803 /* If no more free descriptors - return */ 804 if (d->gen == vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_BODY_ONLY_RING)) { 805 /* Only read after generation field verification */ 806 smp_rmb(); 807 /* Re-read to be sure we got the latest version */ 808 vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_BODY_ONLY_RING, d, didx); 809 assert(d->btype == VMXNET3_RXD_BTYPE_BODY); 810 *ridx = RX_BODY_ONLY_RING; 811 vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_BODY_ONLY_RING); 812 return true; 813 } 814 815 return false; 816 } 817 818 static inline bool 819 vmxnet3_get_next_rx_descr(VMXNET3State *s, bool is_head, 820 struct Vmxnet3_RxDesc *descr_buf, 821 uint32_t *descr_idx, 822 uint32_t *ridx) 823 { 824 if (is_head || !s->rx_packets_compound) { 825 return vmxnet3_get_next_head_rx_descr(s, descr_buf, descr_idx, ridx); 826 } else { 827 return vmxnet3_get_next_body_rx_descr(s, descr_buf, descr_idx, ridx); 828 } 829 } 830 831 /* In case packet was csum offloaded (either NEEDS_CSUM or DATA_VALID), 832 * the implementation always passes an RxCompDesc with a "Checksum 833 * calculated and found correct" to the OS (cnc=0 and tuc=1, see 834 * vmxnet3_rx_update_descr). This emulates the observed ESXi behavior. 835 * 836 * Therefore, if packet has the NEEDS_CSUM set, we must calculate 837 * and place a fully computed checksum into the tcp/udp header. 838 * Otherwise, the OS driver will receive a checksum-correct indication 839 * (CHECKSUM_UNNECESSARY), but with the actual tcp/udp checksum field 840 * having just the pseudo header csum value. 841 * 842 * While this is not a problem if packet is destined for local delivery, 843 * in the case the host OS performs forwarding, it will forward an 844 * incorrectly checksummed packet. 845 */ 846 static void vmxnet3_rx_need_csum_calculate(struct NetRxPkt *pkt, 847 const void *pkt_data, 848 size_t pkt_len) 849 { 850 struct virtio_net_hdr *vhdr; 851 bool hasip4, hasip6; 852 EthL4HdrProto l4hdr_proto; 853 uint8_t *data; 854 int len; 855 856 vhdr = net_rx_pkt_get_vhdr(pkt); 857 if (!VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_NEEDS_CSUM)) { 858 return; 859 } 860 861 net_rx_pkt_get_protocols(pkt, &hasip4, &hasip6, &l4hdr_proto); 862 if (!(hasip4 || hasip6) || 863 (l4hdr_proto != ETH_L4_HDR_PROTO_TCP && 864 l4hdr_proto != ETH_L4_HDR_PROTO_UDP)) { 865 return; 866 } 867 868 vmxnet3_dump_virt_hdr(vhdr); 869 870 /* Validate packet len: csum_start + scum_offset + length of csum field */ 871 if (pkt_len < (vhdr->csum_start + vhdr->csum_offset + 2)) { 872 VMW_PKPRN("packet len:%zu < csum_start(%d) + csum_offset(%d) + 2, " 873 "cannot calculate checksum", 874 pkt_len, vhdr->csum_start, vhdr->csum_offset); 875 return; 876 } 877 878 data = (uint8_t *)pkt_data + vhdr->csum_start; 879 len = pkt_len - vhdr->csum_start; 880 /* Put the checksum obtained into the packet */ 881 stw_be_p(data + vhdr->csum_offset, 882 net_checksum_finish_nozero(net_checksum_add(len, data))); 883 884 vhdr->flags &= ~VIRTIO_NET_HDR_F_NEEDS_CSUM; 885 vhdr->flags |= VIRTIO_NET_HDR_F_DATA_VALID; 886 } 887 888 static void vmxnet3_rx_update_descr(struct NetRxPkt *pkt, 889 struct Vmxnet3_RxCompDesc *rxcd) 890 { 891 int csum_ok, is_gso; 892 bool hasip4, hasip6; 893 EthL4HdrProto l4hdr_proto; 894 struct virtio_net_hdr *vhdr; 895 uint8_t offload_type; 896 897 if (net_rx_pkt_is_vlan_stripped(pkt)) { 898 rxcd->ts = 1; 899 rxcd->tci = net_rx_pkt_get_vlan_tag(pkt); 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, &hasip4, &hasip6, &l4hdr_proto); 920 if ((l4hdr_proto != ETH_L4_HDR_PROTO_TCP && 921 l4hdr_proto != ETH_L4_HDR_PROTO_UDP) || 922 (!hasip4 && !hasip6)) { 923 goto nocsum; 924 } 925 926 rxcd->cnc = 0; 927 rxcd->v4 = hasip4 ? 1 : 0; 928 rxcd->v6 = hasip6 ? 1 : 0; 929 rxcd->tcp = l4hdr_proto == ETH_L4_HDR_PROTO_TCP; 930 rxcd->udp = l4hdr_proto == ETH_L4_HDR_PROTO_UDP; 931 rxcd->fcs = rxcd->tuc = rxcd->ipc = 1; 932 return; 933 934 nocsum: 935 rxcd->cnc = 1; 936 return; 937 } 938 939 static void 940 vmxnet3_pci_dma_writev(PCIDevice *pci_dev, 941 const struct iovec *iov, 942 size_t start_iov_off, 943 hwaddr target_addr, 944 size_t bytes_to_copy) 945 { 946 size_t curr_off = 0; 947 size_t copied = 0; 948 949 while (bytes_to_copy) { 950 if (start_iov_off < (curr_off + iov->iov_len)) { 951 size_t chunk_len = 952 MIN((curr_off + iov->iov_len) - start_iov_off, bytes_to_copy); 953 954 pci_dma_write(pci_dev, target_addr + copied, 955 iov->iov_base + start_iov_off - curr_off, 956 chunk_len); 957 958 copied += chunk_len; 959 start_iov_off += chunk_len; 960 curr_off = start_iov_off; 961 bytes_to_copy -= chunk_len; 962 } else { 963 curr_off += iov->iov_len; 964 } 965 iov++; 966 } 967 } 968 969 static void 970 vmxnet3_pci_dma_write_rxcd(PCIDevice *pcidev, dma_addr_t pa, 971 struct Vmxnet3_RxCompDesc *rxcd) 972 { 973 rxcd->val1 = cpu_to_le32(rxcd->val1); 974 rxcd->val2 = cpu_to_le32(rxcd->val2); 975 rxcd->val3 = cpu_to_le32(rxcd->val3); 976 pci_dma_write(pcidev, pa, rxcd, sizeof(*rxcd)); 977 } 978 979 static bool 980 vmxnet3_indicate_packet(VMXNET3State *s) 981 { 982 struct Vmxnet3_RxDesc rxd; 983 PCIDevice *d = PCI_DEVICE(s); 984 bool is_head = true; 985 uint32_t rxd_idx; 986 uint32_t rx_ridx = 0; 987 988 struct Vmxnet3_RxCompDesc rxcd; 989 uint32_t new_rxcd_gen = VMXNET3_INIT_GEN; 990 hwaddr new_rxcd_pa = 0; 991 hwaddr ready_rxcd_pa = 0; 992 struct iovec *data = net_rx_pkt_get_iovec(s->rx_pkt); 993 size_t bytes_copied = 0; 994 size_t bytes_left = net_rx_pkt_get_total_len(s->rx_pkt); 995 uint16_t num_frags = 0; 996 size_t chunk_size; 997 998 net_rx_pkt_dump(s->rx_pkt); 999 1000 while (bytes_left > 0) { 1001 1002 /* cannot add more frags to packet */ 1003 if (num_frags == s->max_rx_frags) { 1004 break; 1005 } 1006 1007 new_rxcd_pa = vmxnet3_pop_rxc_descr(s, RXQ_IDX, &new_rxcd_gen); 1008 if (!new_rxcd_pa) { 1009 break; 1010 } 1011 1012 if (!vmxnet3_get_next_rx_descr(s, is_head, &rxd, &rxd_idx, &rx_ridx)) { 1013 break; 1014 } 1015 1016 chunk_size = MIN(bytes_left, rxd.len); 1017 vmxnet3_pci_dma_writev(d, data, bytes_copied, rxd.addr, chunk_size); 1018 bytes_copied += chunk_size; 1019 bytes_left -= chunk_size; 1020 1021 vmxnet3_dump_rx_descr(&rxd); 1022 1023 if (ready_rxcd_pa != 0) { 1024 vmxnet3_pci_dma_write_rxcd(d, ready_rxcd_pa, &rxcd); 1025 } 1026 1027 memset(&rxcd, 0, sizeof(struct Vmxnet3_RxCompDesc)); 1028 rxcd.rxdIdx = rxd_idx; 1029 rxcd.len = chunk_size; 1030 rxcd.sop = is_head; 1031 rxcd.gen = new_rxcd_gen; 1032 rxcd.rqID = RXQ_IDX + rx_ridx * s->rxq_num; 1033 1034 if (bytes_left == 0) { 1035 vmxnet3_rx_update_descr(s->rx_pkt, &rxcd); 1036 } 1037 1038 VMW_RIPRN("RX Completion descriptor: rxRing: %lu rxIdx %lu len %lu " 1039 "sop %d csum_correct %lu", 1040 (unsigned long) rx_ridx, 1041 (unsigned long) rxcd.rxdIdx, 1042 (unsigned long) rxcd.len, 1043 (int) rxcd.sop, 1044 (unsigned long) rxcd.tuc); 1045 1046 is_head = false; 1047 ready_rxcd_pa = new_rxcd_pa; 1048 new_rxcd_pa = 0; 1049 num_frags++; 1050 } 1051 1052 if (ready_rxcd_pa != 0) { 1053 rxcd.eop = 1; 1054 rxcd.err = (bytes_left != 0); 1055 1056 vmxnet3_pci_dma_write_rxcd(d, ready_rxcd_pa, &rxcd); 1057 1058 /* Flush RX descriptor changes */ 1059 smp_wmb(); 1060 } 1061 1062 if (new_rxcd_pa != 0) { 1063 vmxnet3_revert_rxc_descr(s, RXQ_IDX); 1064 } 1065 1066 vmxnet3_trigger_interrupt(s, s->rxq_descr[RXQ_IDX].intr_idx); 1067 1068 if (bytes_left == 0) { 1069 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, VMXNET3_PKT_STATUS_OK); 1070 return true; 1071 } else if (num_frags == s->max_rx_frags) { 1072 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, VMXNET3_PKT_STATUS_ERROR); 1073 return false; 1074 } else { 1075 vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, 1076 VMXNET3_PKT_STATUS_OUT_OF_BUF); 1077 return false; 1078 } 1079 } 1080 1081 static void 1082 vmxnet3_io_bar0_write(void *opaque, hwaddr addr, 1083 uint64_t val, unsigned size) 1084 { 1085 VMXNET3State *s = opaque; 1086 1087 if (!s->device_active) { 1088 return; 1089 } 1090 1091 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_TXPROD, 1092 VMXNET3_DEVICE_MAX_TX_QUEUES, VMXNET3_REG_ALIGN)) { 1093 int tx_queue_idx = 1094 VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_TXPROD, 1095 VMXNET3_REG_ALIGN); 1096 if (tx_queue_idx <= s->txq_num) { 1097 vmxnet3_process_tx_queue(s, tx_queue_idx); 1098 } else { 1099 qemu_log_mask(LOG_GUEST_ERROR, "vmxnet3: Illegal TX queue %d/%d\n", 1100 tx_queue_idx, s->txq_num); 1101 } 1102 return; 1103 } 1104 1105 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_IMR, 1106 VMXNET3_MAX_INTRS, VMXNET3_REG_ALIGN)) { 1107 int l = VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_IMR, 1108 VMXNET3_REG_ALIGN); 1109 1110 VMW_CBPRN("Interrupt mask for line %d written: 0x%" PRIx64, l, val); 1111 1112 vmxnet3_on_interrupt_mask_changed(s, l, val); 1113 return; 1114 } 1115 1116 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_RXPROD, 1117 VMXNET3_DEVICE_MAX_RX_QUEUES, VMXNET3_REG_ALIGN) || 1118 VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_RXPROD2, 1119 VMXNET3_DEVICE_MAX_RX_QUEUES, VMXNET3_REG_ALIGN)) { 1120 return; 1121 } 1122 1123 VMW_WRPRN("BAR0 unknown write [%" PRIx64 "] = %" PRIx64 ", size %d", 1124 (uint64_t) addr, val, size); 1125 } 1126 1127 static uint64_t 1128 vmxnet3_io_bar0_read(void *opaque, hwaddr addr, unsigned size) 1129 { 1130 VMXNET3State *s = opaque; 1131 1132 if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_IMR, 1133 VMXNET3_MAX_INTRS, VMXNET3_REG_ALIGN)) { 1134 int l = VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_IMR, 1135 VMXNET3_REG_ALIGN); 1136 return s->interrupt_states[l].is_masked; 1137 } 1138 1139 VMW_CBPRN("BAR0 unknown read [%" PRIx64 "], size %d", addr, size); 1140 return 0; 1141 } 1142 1143 static void vmxnet3_reset_interrupt_states(VMXNET3State *s) 1144 { 1145 int i; 1146 for (i = 0; i < ARRAY_SIZE(s->interrupt_states); i++) { 1147 s->interrupt_states[i].is_asserted = false; 1148 s->interrupt_states[i].is_pending = false; 1149 s->interrupt_states[i].is_masked = true; 1150 } 1151 } 1152 1153 static void vmxnet3_reset_mac(VMXNET3State *s) 1154 { 1155 memcpy(&s->conf.macaddr.a, &s->perm_mac.a, sizeof(s->perm_mac.a)); 1156 VMW_CFPRN("MAC address set to: " MAC_FMT, MAC_ARG(s->conf.macaddr.a)); 1157 } 1158 1159 static void vmxnet3_deactivate_device(VMXNET3State *s) 1160 { 1161 if (s->device_active) { 1162 VMW_CBPRN("Deactivating vmxnet3..."); 1163 net_tx_pkt_uninit(s->tx_pkt); 1164 net_rx_pkt_uninit(s->rx_pkt); 1165 s->device_active = false; 1166 } 1167 } 1168 1169 static void vmxnet3_reset(VMXNET3State *s) 1170 { 1171 VMW_CBPRN("Resetting vmxnet3..."); 1172 1173 vmxnet3_deactivate_device(s); 1174 vmxnet3_reset_interrupt_states(s); 1175 s->drv_shmem = 0; 1176 s->tx_sop = true; 1177 s->skip_current_tx_pkt = false; 1178 } 1179 1180 static void vmxnet3_update_rx_mode(VMXNET3State *s) 1181 { 1182 PCIDevice *d = PCI_DEVICE(s); 1183 1184 s->rx_mode = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, 1185 devRead.rxFilterConf.rxMode); 1186 VMW_CFPRN("RX mode: 0x%08X", s->rx_mode); 1187 } 1188 1189 static void vmxnet3_update_vlan_filters(VMXNET3State *s) 1190 { 1191 int i; 1192 PCIDevice *d = PCI_DEVICE(s); 1193 1194 /* Copy configuration from shared memory */ 1195 VMXNET3_READ_DRV_SHARED(d, s->drv_shmem, 1196 devRead.rxFilterConf.vfTable, 1197 s->vlan_table, 1198 sizeof(s->vlan_table)); 1199 1200 /* Invert byte order when needed */ 1201 for (i = 0; i < ARRAY_SIZE(s->vlan_table); i++) { 1202 s->vlan_table[i] = le32_to_cpu(s->vlan_table[i]); 1203 } 1204 1205 /* Dump configuration for debugging purposes */ 1206 VMW_CFPRN("Configured VLANs:"); 1207 for (i = 0; i < sizeof(s->vlan_table) * 8; i++) { 1208 if (VMXNET3_VFTABLE_ENTRY_IS_SET(s->vlan_table, i)) { 1209 VMW_CFPRN("\tVLAN %d is present", i); 1210 } 1211 } 1212 } 1213 1214 static void vmxnet3_update_mcast_filters(VMXNET3State *s) 1215 { 1216 PCIDevice *d = PCI_DEVICE(s); 1217 1218 uint16_t list_bytes = 1219 VMXNET3_READ_DRV_SHARED16(d, s->drv_shmem, 1220 devRead.rxFilterConf.mfTableLen); 1221 1222 s->mcast_list_len = list_bytes / sizeof(s->mcast_list[0]); 1223 1224 s->mcast_list = g_realloc(s->mcast_list, list_bytes); 1225 if (!s->mcast_list) { 1226 if (s->mcast_list_len == 0) { 1227 VMW_CFPRN("Current multicast list is empty"); 1228 } else { 1229 VMW_ERPRN("Failed to allocate multicast list of %d elements", 1230 s->mcast_list_len); 1231 } 1232 s->mcast_list_len = 0; 1233 } else { 1234 int i; 1235 hwaddr mcast_list_pa = 1236 VMXNET3_READ_DRV_SHARED64(d, s->drv_shmem, 1237 devRead.rxFilterConf.mfTablePA); 1238 1239 pci_dma_read(d, mcast_list_pa, s->mcast_list, list_bytes); 1240 1241 VMW_CFPRN("Current multicast list len is %d:", s->mcast_list_len); 1242 for (i = 0; i < s->mcast_list_len; i++) { 1243 VMW_CFPRN("\t" MAC_FMT, MAC_ARG(s->mcast_list[i].a)); 1244 } 1245 } 1246 } 1247 1248 static void vmxnet3_setup_rx_filtering(VMXNET3State *s) 1249 { 1250 vmxnet3_update_rx_mode(s); 1251 vmxnet3_update_vlan_filters(s); 1252 vmxnet3_update_mcast_filters(s); 1253 } 1254 1255 static uint32_t vmxnet3_get_interrupt_config(VMXNET3State *s) 1256 { 1257 uint32_t interrupt_mode = VMXNET3_IT_AUTO | (VMXNET3_IMM_AUTO << 2); 1258 VMW_CFPRN("Interrupt config is 0x%X", interrupt_mode); 1259 return interrupt_mode; 1260 } 1261 1262 static void vmxnet3_fill_stats(VMXNET3State *s) 1263 { 1264 int i; 1265 PCIDevice *d = PCI_DEVICE(s); 1266 1267 if (!s->device_active) 1268 return; 1269 1270 for (i = 0; i < s->txq_num; i++) { 1271 pci_dma_write(d, 1272 s->txq_descr[i].tx_stats_pa, 1273 &s->txq_descr[i].txq_stats, 1274 sizeof(s->txq_descr[i].txq_stats)); 1275 } 1276 1277 for (i = 0; i < s->rxq_num; i++) { 1278 pci_dma_write(d, 1279 s->rxq_descr[i].rx_stats_pa, 1280 &s->rxq_descr[i].rxq_stats, 1281 sizeof(s->rxq_descr[i].rxq_stats)); 1282 } 1283 } 1284 1285 static void vmxnet3_adjust_by_guest_type(VMXNET3State *s) 1286 { 1287 struct Vmxnet3_GOSInfo gos; 1288 PCIDevice *d = PCI_DEVICE(s); 1289 1290 VMXNET3_READ_DRV_SHARED(d, s->drv_shmem, devRead.misc.driverInfo.gos, 1291 &gos, sizeof(gos)); 1292 s->rx_packets_compound = 1293 (gos.gosType == VMXNET3_GOS_TYPE_WIN) ? false : true; 1294 1295 VMW_CFPRN("Guest type specifics: RXCOMPOUND: %d", s->rx_packets_compound); 1296 } 1297 1298 static void 1299 vmxnet3_dump_conf_descr(const char *name, 1300 struct Vmxnet3_VariableLenConfDesc *pm_descr) 1301 { 1302 VMW_CFPRN("%s descriptor dump: Version %u, Length %u", 1303 name, pm_descr->confVer, pm_descr->confLen); 1304 1305 }; 1306 1307 static void vmxnet3_update_pm_state(VMXNET3State *s) 1308 { 1309 struct Vmxnet3_VariableLenConfDesc pm_descr; 1310 PCIDevice *d = PCI_DEVICE(s); 1311 1312 pm_descr.confLen = 1313 VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, devRead.pmConfDesc.confLen); 1314 pm_descr.confVer = 1315 VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, devRead.pmConfDesc.confVer); 1316 pm_descr.confPA = 1317 VMXNET3_READ_DRV_SHARED64(d, s->drv_shmem, devRead.pmConfDesc.confPA); 1318 1319 vmxnet3_dump_conf_descr("PM State", &pm_descr); 1320 } 1321 1322 static void vmxnet3_update_features(VMXNET3State *s) 1323 { 1324 uint32_t guest_features; 1325 int rxcso_supported; 1326 PCIDevice *d = PCI_DEVICE(s); 1327 1328 guest_features = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, 1329 devRead.misc.uptFeatures); 1330 1331 rxcso_supported = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_RXCSUM); 1332 s->rx_vlan_stripping = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_RXVLAN); 1333 s->lro_supported = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_LRO); 1334 1335 VMW_CFPRN("Features configuration: LRO: %d, RXCSUM: %d, VLANSTRIP: %d", 1336 s->lro_supported, rxcso_supported, 1337 s->rx_vlan_stripping); 1338 if (s->peer_has_vhdr) { 1339 qemu_set_offload(qemu_get_queue(s->nic)->peer, 1340 rxcso_supported, 1341 s->lro_supported, 1342 s->lro_supported, 1343 0, 1344 0); 1345 } 1346 } 1347 1348 static bool vmxnet3_verify_intx(VMXNET3State *s, int intx) 1349 { 1350 return s->msix_used || msi_enabled(PCI_DEVICE(s)) 1351 || intx == pci_get_byte(s->parent_obj.config + PCI_INTERRUPT_PIN) - 1; 1352 } 1353 1354 static void vmxnet3_validate_interrupt_idx(bool is_msix, int idx) 1355 { 1356 int max_ints = is_msix ? VMXNET3_MAX_INTRS : VMXNET3_MAX_NMSIX_INTRS; 1357 if (idx >= max_ints) { 1358 hw_error("Bad interrupt index: %d\n", idx); 1359 } 1360 } 1361 1362 static void vmxnet3_validate_interrupts(VMXNET3State *s) 1363 { 1364 int i; 1365 1366 VMW_CFPRN("Verifying event interrupt index (%d)", s->event_int_idx); 1367 vmxnet3_validate_interrupt_idx(s->msix_used, s->event_int_idx); 1368 1369 for (i = 0; i < s->txq_num; i++) { 1370 int idx = s->txq_descr[i].intr_idx; 1371 VMW_CFPRN("Verifying TX queue %d interrupt index (%d)", i, idx); 1372 vmxnet3_validate_interrupt_idx(s->msix_used, idx); 1373 } 1374 1375 for (i = 0; i < s->rxq_num; i++) { 1376 int idx = s->rxq_descr[i].intr_idx; 1377 VMW_CFPRN("Verifying RX queue %d interrupt index (%d)", i, idx); 1378 vmxnet3_validate_interrupt_idx(s->msix_used, idx); 1379 } 1380 } 1381 1382 static bool vmxnet3_validate_queues(VMXNET3State *s) 1383 { 1384 /* 1385 * txq_num and rxq_num are total number of queues 1386 * configured by guest. These numbers must not 1387 * exceed corresponding maximal values. 1388 */ 1389 1390 if (s->txq_num > VMXNET3_DEVICE_MAX_TX_QUEUES) { 1391 qemu_log_mask(LOG_GUEST_ERROR, "vmxnet3: Bad TX queues number: %d\n", 1392 s->txq_num); 1393 return false; 1394 } 1395 1396 if (s->rxq_num > VMXNET3_DEVICE_MAX_RX_QUEUES) { 1397 qemu_log_mask(LOG_GUEST_ERROR, "vmxnet3: Bad RX queues number: %d\n", 1398 s->rxq_num); 1399 return false; 1400 } 1401 1402 return true; 1403 } 1404 1405 static void vmxnet3_activate_device(VMXNET3State *s) 1406 { 1407 int i; 1408 static const uint32_t VMXNET3_DEF_TX_THRESHOLD = 1; 1409 PCIDevice *d = PCI_DEVICE(s); 1410 hwaddr qdescr_table_pa; 1411 uint64_t pa; 1412 uint32_t size; 1413 1414 /* Verify configuration consistency */ 1415 if (!vmxnet3_verify_driver_magic(d, s->drv_shmem)) { 1416 VMW_ERPRN("Device configuration received from driver is invalid"); 1417 return; 1418 } 1419 1420 /* Verify if device is active */ 1421 if (s->device_active) { 1422 VMW_CFPRN("Vmxnet3 device is active"); 1423 return; 1424 } 1425 1426 s->txq_num = 1427 VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.misc.numTxQueues); 1428 s->rxq_num = 1429 VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.misc.numRxQueues); 1430 1431 VMW_CFPRN("Number of TX/RX queues %u/%u", s->txq_num, s->rxq_num); 1432 if (!vmxnet3_validate_queues(s)) { 1433 return; 1434 } 1435 1436 vmxnet3_adjust_by_guest_type(s); 1437 vmxnet3_update_features(s); 1438 vmxnet3_update_pm_state(s); 1439 vmxnet3_setup_rx_filtering(s); 1440 /* Cache fields from shared memory */ 1441 s->mtu = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, devRead.misc.mtu); 1442 assert(VMXNET3_MIN_MTU <= s->mtu && s->mtu <= VMXNET3_MAX_MTU); 1443 VMW_CFPRN("MTU is %u", s->mtu); 1444 1445 s->max_rx_frags = 1446 VMXNET3_READ_DRV_SHARED16(d, s->drv_shmem, devRead.misc.maxNumRxSG); 1447 1448 if (s->max_rx_frags == 0) { 1449 s->max_rx_frags = 1; 1450 } 1451 1452 VMW_CFPRN("Max RX fragments is %u", s->max_rx_frags); 1453 1454 s->event_int_idx = 1455 VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.intrConf.eventIntrIdx); 1456 assert(vmxnet3_verify_intx(s, s->event_int_idx)); 1457 VMW_CFPRN("Events interrupt line is %u", s->event_int_idx); 1458 1459 s->auto_int_masking = 1460 VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.intrConf.autoMask); 1461 VMW_CFPRN("Automatic interrupt masking is %d", (int)s->auto_int_masking); 1462 1463 qdescr_table_pa = 1464 VMXNET3_READ_DRV_SHARED64(d, s->drv_shmem, devRead.misc.queueDescPA); 1465 VMW_CFPRN("TX queues descriptors table is at 0x%" PRIx64, qdescr_table_pa); 1466 1467 /* 1468 * Worst-case scenario is a packet that holds all TX rings space so 1469 * we calculate total size of all TX rings for max TX fragments number 1470 */ 1471 s->max_tx_frags = 0; 1472 1473 /* TX queues */ 1474 for (i = 0; i < s->txq_num; i++) { 1475 hwaddr qdescr_pa = 1476 qdescr_table_pa + i * sizeof(struct Vmxnet3_TxQueueDesc); 1477 1478 /* Read interrupt number for this TX queue */ 1479 s->txq_descr[i].intr_idx = 1480 VMXNET3_READ_TX_QUEUE_DESCR8(d, qdescr_pa, conf.intrIdx); 1481 assert(vmxnet3_verify_intx(s, s->txq_descr[i].intr_idx)); 1482 1483 VMW_CFPRN("TX Queue %d interrupt: %d", i, s->txq_descr[i].intr_idx); 1484 1485 /* Read rings memory locations for TX queues */ 1486 pa = VMXNET3_READ_TX_QUEUE_DESCR64(d, qdescr_pa, conf.txRingBasePA); 1487 size = VMXNET3_READ_TX_QUEUE_DESCR32(d, qdescr_pa, conf.txRingSize); 1488 if (size > VMXNET3_TX_RING_MAX_SIZE) { 1489 size = VMXNET3_TX_RING_MAX_SIZE; 1490 } 1491 1492 vmxnet3_ring_init(d, &s->txq_descr[i].tx_ring, pa, size, 1493 sizeof(struct Vmxnet3_TxDesc), false); 1494 VMXNET3_RING_DUMP(VMW_CFPRN, "TX", i, &s->txq_descr[i].tx_ring); 1495 1496 s->max_tx_frags += size; 1497 1498 /* TXC ring */ 1499 pa = VMXNET3_READ_TX_QUEUE_DESCR64(d, qdescr_pa, conf.compRingBasePA); 1500 size = VMXNET3_READ_TX_QUEUE_DESCR32(d, qdescr_pa, conf.compRingSize); 1501 if (size > VMXNET3_TC_RING_MAX_SIZE) { 1502 size = VMXNET3_TC_RING_MAX_SIZE; 1503 } 1504 vmxnet3_ring_init(d, &s->txq_descr[i].comp_ring, pa, size, 1505 sizeof(struct Vmxnet3_TxCompDesc), true); 1506 VMXNET3_RING_DUMP(VMW_CFPRN, "TXC", i, &s->txq_descr[i].comp_ring); 1507 1508 s->txq_descr[i].tx_stats_pa = 1509 qdescr_pa + offsetof(struct Vmxnet3_TxQueueDesc, stats); 1510 1511 memset(&s->txq_descr[i].txq_stats, 0, 1512 sizeof(s->txq_descr[i].txq_stats)); 1513 1514 /* Fill device-managed parameters for queues */ 1515 VMXNET3_WRITE_TX_QUEUE_DESCR32(d, qdescr_pa, 1516 ctrl.txThreshold, 1517 VMXNET3_DEF_TX_THRESHOLD); 1518 } 1519 1520 /* Preallocate TX packet wrapper */ 1521 VMW_CFPRN("Max TX fragments is %u", s->max_tx_frags); 1522 net_tx_pkt_init(&s->tx_pkt, s->max_tx_frags); 1523 net_rx_pkt_init(&s->rx_pkt); 1524 1525 /* Read rings memory locations for RX queues */ 1526 for (i = 0; i < s->rxq_num; i++) { 1527 int j; 1528 hwaddr qd_pa = 1529 qdescr_table_pa + s->txq_num * sizeof(struct Vmxnet3_TxQueueDesc) + 1530 i * sizeof(struct Vmxnet3_RxQueueDesc); 1531 1532 /* Read interrupt number for this RX queue */ 1533 s->rxq_descr[i].intr_idx = 1534 VMXNET3_READ_TX_QUEUE_DESCR8(d, qd_pa, conf.intrIdx); 1535 assert(vmxnet3_verify_intx(s, s->rxq_descr[i].intr_idx)); 1536 1537 VMW_CFPRN("RX Queue %d interrupt: %d", i, s->rxq_descr[i].intr_idx); 1538 1539 /* Read rings memory locations */ 1540 for (j = 0; j < VMXNET3_RX_RINGS_PER_QUEUE; j++) { 1541 /* RX rings */ 1542 pa = VMXNET3_READ_RX_QUEUE_DESCR64(d, qd_pa, conf.rxRingBasePA[j]); 1543 size = VMXNET3_READ_RX_QUEUE_DESCR32(d, qd_pa, conf.rxRingSize[j]); 1544 if (size > VMXNET3_RX_RING_MAX_SIZE) { 1545 size = VMXNET3_RX_RING_MAX_SIZE; 1546 } 1547 vmxnet3_ring_init(d, &s->rxq_descr[i].rx_ring[j], pa, size, 1548 sizeof(struct Vmxnet3_RxDesc), false); 1549 VMW_CFPRN("RX queue %d:%d: Base: %" PRIx64 ", Size: %d", 1550 i, j, pa, size); 1551 } 1552 1553 /* RXC ring */ 1554 pa = VMXNET3_READ_RX_QUEUE_DESCR64(d, qd_pa, conf.compRingBasePA); 1555 size = VMXNET3_READ_RX_QUEUE_DESCR32(d, qd_pa, conf.compRingSize); 1556 if (size > VMXNET3_RC_RING_MAX_SIZE) { 1557 size = VMXNET3_RC_RING_MAX_SIZE; 1558 } 1559 vmxnet3_ring_init(d, &s->rxq_descr[i].comp_ring, pa, size, 1560 sizeof(struct Vmxnet3_RxCompDesc), true); 1561 VMW_CFPRN("RXC queue %d: Base: %" PRIx64 ", Size: %d", i, pa, size); 1562 1563 s->rxq_descr[i].rx_stats_pa = 1564 qd_pa + offsetof(struct Vmxnet3_RxQueueDesc, stats); 1565 memset(&s->rxq_descr[i].rxq_stats, 0, 1566 sizeof(s->rxq_descr[i].rxq_stats)); 1567 } 1568 1569 vmxnet3_validate_interrupts(s); 1570 1571 /* Make sure everything is in place before device activation */ 1572 smp_wmb(); 1573 1574 vmxnet3_reset_mac(s); 1575 1576 s->device_active = true; 1577 } 1578 1579 static void vmxnet3_handle_command(VMXNET3State *s, uint64_t cmd) 1580 { 1581 s->last_command = cmd; 1582 1583 switch (cmd) { 1584 case VMXNET3_CMD_GET_PERM_MAC_HI: 1585 VMW_CBPRN("Set: Get upper part of permanent MAC"); 1586 break; 1587 1588 case VMXNET3_CMD_GET_PERM_MAC_LO: 1589 VMW_CBPRN("Set: Get lower part of permanent MAC"); 1590 break; 1591 1592 case VMXNET3_CMD_GET_STATS: 1593 VMW_CBPRN("Set: Get device statistics"); 1594 vmxnet3_fill_stats(s); 1595 break; 1596 1597 case VMXNET3_CMD_ACTIVATE_DEV: 1598 VMW_CBPRN("Set: Activating vmxnet3 device"); 1599 vmxnet3_activate_device(s); 1600 break; 1601 1602 case VMXNET3_CMD_UPDATE_RX_MODE: 1603 VMW_CBPRN("Set: Update rx mode"); 1604 vmxnet3_update_rx_mode(s); 1605 break; 1606 1607 case VMXNET3_CMD_UPDATE_VLAN_FILTERS: 1608 VMW_CBPRN("Set: Update VLAN filters"); 1609 vmxnet3_update_vlan_filters(s); 1610 break; 1611 1612 case VMXNET3_CMD_UPDATE_MAC_FILTERS: 1613 VMW_CBPRN("Set: Update MAC filters"); 1614 vmxnet3_update_mcast_filters(s); 1615 break; 1616 1617 case VMXNET3_CMD_UPDATE_FEATURE: 1618 VMW_CBPRN("Set: Update features"); 1619 vmxnet3_update_features(s); 1620 break; 1621 1622 case VMXNET3_CMD_UPDATE_PMCFG: 1623 VMW_CBPRN("Set: Update power management config"); 1624 vmxnet3_update_pm_state(s); 1625 break; 1626 1627 case VMXNET3_CMD_GET_LINK: 1628 VMW_CBPRN("Set: Get link"); 1629 break; 1630 1631 case VMXNET3_CMD_RESET_DEV: 1632 VMW_CBPRN("Set: Reset device"); 1633 vmxnet3_reset(s); 1634 break; 1635 1636 case VMXNET3_CMD_QUIESCE_DEV: 1637 VMW_CBPRN("Set: VMXNET3_CMD_QUIESCE_DEV - deactivate the device"); 1638 vmxnet3_deactivate_device(s); 1639 break; 1640 1641 case VMXNET3_CMD_GET_CONF_INTR: 1642 VMW_CBPRN("Set: VMXNET3_CMD_GET_CONF_INTR - interrupt configuration"); 1643 break; 1644 1645 case VMXNET3_CMD_GET_ADAPTIVE_RING_INFO: 1646 VMW_CBPRN("Set: VMXNET3_CMD_GET_ADAPTIVE_RING_INFO - " 1647 "adaptive ring info flags"); 1648 break; 1649 1650 case VMXNET3_CMD_GET_DID_LO: 1651 VMW_CBPRN("Set: Get lower part of device ID"); 1652 break; 1653 1654 case VMXNET3_CMD_GET_DID_HI: 1655 VMW_CBPRN("Set: Get upper part of device ID"); 1656 break; 1657 1658 case VMXNET3_CMD_GET_DEV_EXTRA_INFO: 1659 VMW_CBPRN("Set: Get device extra info"); 1660 break; 1661 1662 default: 1663 VMW_CBPRN("Received unknown command: %" PRIx64, cmd); 1664 break; 1665 } 1666 } 1667 1668 static uint64_t vmxnet3_get_command_status(VMXNET3State *s) 1669 { 1670 uint64_t ret; 1671 1672 switch (s->last_command) { 1673 case VMXNET3_CMD_ACTIVATE_DEV: 1674 ret = (s->device_active) ? 0 : 1; 1675 VMW_CFPRN("Device active: %" PRIx64, ret); 1676 break; 1677 1678 case VMXNET3_CMD_RESET_DEV: 1679 case VMXNET3_CMD_QUIESCE_DEV: 1680 case VMXNET3_CMD_GET_QUEUE_STATUS: 1681 case VMXNET3_CMD_GET_DEV_EXTRA_INFO: 1682 ret = 0; 1683 break; 1684 1685 case VMXNET3_CMD_GET_LINK: 1686 ret = s->link_status_and_speed; 1687 VMW_CFPRN("Link and speed: %" PRIx64, ret); 1688 break; 1689 1690 case VMXNET3_CMD_GET_PERM_MAC_LO: 1691 ret = vmxnet3_get_mac_low(&s->perm_mac); 1692 break; 1693 1694 case VMXNET3_CMD_GET_PERM_MAC_HI: 1695 ret = vmxnet3_get_mac_high(&s->perm_mac); 1696 break; 1697 1698 case VMXNET3_CMD_GET_CONF_INTR: 1699 ret = vmxnet3_get_interrupt_config(s); 1700 break; 1701 1702 case VMXNET3_CMD_GET_ADAPTIVE_RING_INFO: 1703 ret = VMXNET3_DISABLE_ADAPTIVE_RING; 1704 break; 1705 1706 case VMXNET3_CMD_GET_DID_LO: 1707 ret = PCI_DEVICE_ID_VMWARE_VMXNET3; 1708 break; 1709 1710 case VMXNET3_CMD_GET_DID_HI: 1711 ret = VMXNET3_DEVICE_REVISION; 1712 break; 1713 1714 default: 1715 VMW_WRPRN("Received request for unknown command: %x", s->last_command); 1716 ret = 0; 1717 break; 1718 } 1719 1720 return ret; 1721 } 1722 1723 static void vmxnet3_set_events(VMXNET3State *s, uint32_t val) 1724 { 1725 uint32_t events; 1726 PCIDevice *d = PCI_DEVICE(s); 1727 1728 VMW_CBPRN("Setting events: 0x%x", val); 1729 events = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, ecr) | val; 1730 VMXNET3_WRITE_DRV_SHARED32(d, s->drv_shmem, ecr, events); 1731 } 1732 1733 static void vmxnet3_ack_events(VMXNET3State *s, uint32_t val) 1734 { 1735 PCIDevice *d = PCI_DEVICE(s); 1736 uint32_t events; 1737 1738 VMW_CBPRN("Clearing events: 0x%x", val); 1739 events = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, ecr) & ~val; 1740 VMXNET3_WRITE_DRV_SHARED32(d, s->drv_shmem, ecr, events); 1741 } 1742 1743 static void 1744 vmxnet3_io_bar1_write(void *opaque, 1745 hwaddr addr, 1746 uint64_t val, 1747 unsigned size) 1748 { 1749 VMXNET3State *s = opaque; 1750 1751 switch (addr) { 1752 /* Vmxnet3 Revision Report Selection */ 1753 case VMXNET3_REG_VRRS: 1754 VMW_CBPRN("Write BAR1 [VMXNET3_REG_VRRS] = %" PRIx64 ", size %d", 1755 val, size); 1756 break; 1757 1758 /* UPT Version Report Selection */ 1759 case VMXNET3_REG_UVRS: 1760 VMW_CBPRN("Write BAR1 [VMXNET3_REG_UVRS] = %" PRIx64 ", size %d", 1761 val, size); 1762 break; 1763 1764 /* Driver Shared Address Low */ 1765 case VMXNET3_REG_DSAL: 1766 VMW_CBPRN("Write BAR1 [VMXNET3_REG_DSAL] = %" PRIx64 ", size %d", 1767 val, size); 1768 /* 1769 * Guest driver will first write the low part of the shared 1770 * memory address. We save it to temp variable and set the 1771 * shared address only after we get the high part 1772 */ 1773 if (val == 0) { 1774 vmxnet3_deactivate_device(s); 1775 } 1776 s->temp_shared_guest_driver_memory = val; 1777 s->drv_shmem = 0; 1778 break; 1779 1780 /* Driver Shared Address High */ 1781 case VMXNET3_REG_DSAH: 1782 VMW_CBPRN("Write BAR1 [VMXNET3_REG_DSAH] = %" PRIx64 ", size %d", 1783 val, size); 1784 /* 1785 * Set the shared memory between guest driver and device. 1786 * We already should have low address part. 1787 */ 1788 s->drv_shmem = s->temp_shared_guest_driver_memory | (val << 32); 1789 break; 1790 1791 /* Command */ 1792 case VMXNET3_REG_CMD: 1793 VMW_CBPRN("Write BAR1 [VMXNET3_REG_CMD] = %" PRIx64 ", size %d", 1794 val, size); 1795 vmxnet3_handle_command(s, val); 1796 break; 1797 1798 /* MAC Address Low */ 1799 case VMXNET3_REG_MACL: 1800 VMW_CBPRN("Write BAR1 [VMXNET3_REG_MACL] = %" PRIx64 ", size %d", 1801 val, size); 1802 s->temp_mac = val; 1803 break; 1804 1805 /* MAC Address High */ 1806 case VMXNET3_REG_MACH: 1807 VMW_CBPRN("Write BAR1 [VMXNET3_REG_MACH] = %" PRIx64 ", size %d", 1808 val, size); 1809 vmxnet3_set_variable_mac(s, val, s->temp_mac); 1810 break; 1811 1812 /* Interrupt Cause Register */ 1813 case VMXNET3_REG_ICR: 1814 VMW_CBPRN("Write BAR1 [VMXNET3_REG_ICR] = %" PRIx64 ", size %d", 1815 val, size); 1816 qemu_log_mask(LOG_GUEST_ERROR, 1817 "%s: write to read-only register VMXNET3_REG_ICR\n", 1818 TYPE_VMXNET3); 1819 break; 1820 1821 /* Event Cause Register */ 1822 case VMXNET3_REG_ECR: 1823 VMW_CBPRN("Write BAR1 [VMXNET3_REG_ECR] = %" PRIx64 ", size %d", 1824 val, size); 1825 vmxnet3_ack_events(s, val); 1826 break; 1827 1828 default: 1829 VMW_CBPRN("Unknown Write to BAR1 [%" PRIx64 "] = %" PRIx64 ", size %d", 1830 addr, val, size); 1831 break; 1832 } 1833 } 1834 1835 static uint64_t 1836 vmxnet3_io_bar1_read(void *opaque, hwaddr addr, unsigned size) 1837 { 1838 VMXNET3State *s = opaque; 1839 uint64_t ret = 0; 1840 1841 switch (addr) { 1842 /* Vmxnet3 Revision Report Selection */ 1843 case VMXNET3_REG_VRRS: 1844 VMW_CBPRN("Read BAR1 [VMXNET3_REG_VRRS], size %d", size); 1845 ret = VMXNET3_DEVICE_REVISION; 1846 break; 1847 1848 /* UPT Version Report Selection */ 1849 case VMXNET3_REG_UVRS: 1850 VMW_CBPRN("Read BAR1 [VMXNET3_REG_UVRS], size %d", size); 1851 ret = VMXNET3_UPT_REVISION; 1852 break; 1853 1854 /* Command */ 1855 case VMXNET3_REG_CMD: 1856 VMW_CBPRN("Read BAR1 [VMXNET3_REG_CMD], size %d", size); 1857 ret = vmxnet3_get_command_status(s); 1858 break; 1859 1860 /* MAC Address Low */ 1861 case VMXNET3_REG_MACL: 1862 VMW_CBPRN("Read BAR1 [VMXNET3_REG_MACL], size %d", size); 1863 ret = vmxnet3_get_mac_low(&s->conf.macaddr); 1864 break; 1865 1866 /* MAC Address High */ 1867 case VMXNET3_REG_MACH: 1868 VMW_CBPRN("Read BAR1 [VMXNET3_REG_MACH], size %d", size); 1869 ret = vmxnet3_get_mac_high(&s->conf.macaddr); 1870 break; 1871 1872 /* 1873 * Interrupt Cause Register 1874 * Used for legacy interrupts only so interrupt index always 0 1875 */ 1876 case VMXNET3_REG_ICR: 1877 VMW_CBPRN("Read BAR1 [VMXNET3_REG_ICR], size %d", size); 1878 if (vmxnet3_interrupt_asserted(s, 0)) { 1879 vmxnet3_clear_interrupt(s, 0); 1880 ret = true; 1881 } else { 1882 ret = false; 1883 } 1884 break; 1885 1886 default: 1887 VMW_CBPRN("Unknow read BAR1[%" PRIx64 "], %d bytes", addr, size); 1888 break; 1889 } 1890 1891 return ret; 1892 } 1893 1894 static int 1895 vmxnet3_can_receive(NetClientState *nc) 1896 { 1897 VMXNET3State *s = qemu_get_nic_opaque(nc); 1898 return s->device_active && 1899 VMXNET_FLAG_IS_SET(s->link_status_and_speed, VMXNET3_LINK_STATUS_UP); 1900 } 1901 1902 static inline bool 1903 vmxnet3_is_registered_vlan(VMXNET3State *s, const void *data) 1904 { 1905 uint16_t vlan_tag = eth_get_pkt_tci(data) & VLAN_VID_MASK; 1906 if (IS_SPECIAL_VLAN_ID(vlan_tag)) { 1907 return true; 1908 } 1909 1910 return VMXNET3_VFTABLE_ENTRY_IS_SET(s->vlan_table, vlan_tag); 1911 } 1912 1913 static bool 1914 vmxnet3_is_allowed_mcast_group(VMXNET3State *s, const uint8_t *group_mac) 1915 { 1916 int i; 1917 for (i = 0; i < s->mcast_list_len; i++) { 1918 if (!memcmp(group_mac, s->mcast_list[i].a, sizeof(s->mcast_list[i]))) { 1919 return true; 1920 } 1921 } 1922 return false; 1923 } 1924 1925 static bool 1926 vmxnet3_rx_filter_may_indicate(VMXNET3State *s, const void *data, 1927 size_t size) 1928 { 1929 struct eth_header *ehdr = PKT_GET_ETH_HDR(data); 1930 1931 if (VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_PROMISC)) { 1932 return true; 1933 } 1934 1935 if (!vmxnet3_is_registered_vlan(s, data)) { 1936 return false; 1937 } 1938 1939 switch (net_rx_pkt_get_packet_type(s->rx_pkt)) { 1940 case ETH_PKT_UCAST: 1941 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_UCAST)) { 1942 return false; 1943 } 1944 if (memcmp(s->conf.macaddr.a, ehdr->h_dest, ETH_ALEN)) { 1945 return false; 1946 } 1947 break; 1948 1949 case ETH_PKT_BCAST: 1950 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_BCAST)) { 1951 return false; 1952 } 1953 break; 1954 1955 case ETH_PKT_MCAST: 1956 if (VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_ALL_MULTI)) { 1957 return true; 1958 } 1959 if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_MCAST)) { 1960 return false; 1961 } 1962 if (!vmxnet3_is_allowed_mcast_group(s, ehdr->h_dest)) { 1963 return false; 1964 } 1965 break; 1966 1967 default: 1968 g_assert_not_reached(); 1969 } 1970 1971 return true; 1972 } 1973 1974 static ssize_t 1975 vmxnet3_receive(NetClientState *nc, const uint8_t *buf, size_t size) 1976 { 1977 VMXNET3State *s = qemu_get_nic_opaque(nc); 1978 size_t bytes_indicated; 1979 1980 if (!vmxnet3_can_receive(nc)) { 1981 VMW_PKPRN("Cannot receive now"); 1982 return -1; 1983 } 1984 1985 if (s->peer_has_vhdr) { 1986 net_rx_pkt_set_vhdr(s->rx_pkt, (struct virtio_net_hdr *)buf); 1987 buf += sizeof(struct virtio_net_hdr); 1988 size -= sizeof(struct virtio_net_hdr); 1989 } 1990 1991 net_rx_pkt_set_packet_type(s->rx_pkt, 1992 get_eth_packet_type(PKT_GET_ETH_HDR(buf))); 1993 1994 if (vmxnet3_rx_filter_may_indicate(s, buf, size)) { 1995 struct iovec iov = { 1996 .iov_base = (void *)buf, 1997 .iov_len = size 1998 }; 1999 2000 net_rx_pkt_set_protocols(s->rx_pkt, &iov, 1, 0); 2001 vmxnet3_rx_need_csum_calculate(s->rx_pkt, buf, size); 2002 net_rx_pkt_attach_data(s->rx_pkt, buf, size, s->rx_vlan_stripping); 2003 bytes_indicated = vmxnet3_indicate_packet(s) ? size : -1; 2004 if (bytes_indicated < size) { 2005 VMW_PKPRN("RX: %zu of %zu bytes indicated", bytes_indicated, size); 2006 } 2007 } else { 2008 VMW_PKPRN("Packet dropped by RX filter"); 2009 bytes_indicated = size; 2010 } 2011 2012 assert(size > 0); 2013 assert(bytes_indicated != 0); 2014 return bytes_indicated; 2015 } 2016 2017 static void vmxnet3_set_link_status(NetClientState *nc) 2018 { 2019 VMXNET3State *s = qemu_get_nic_opaque(nc); 2020 2021 if (nc->link_down) { 2022 s->link_status_and_speed &= ~VMXNET3_LINK_STATUS_UP; 2023 } else { 2024 s->link_status_and_speed |= VMXNET3_LINK_STATUS_UP; 2025 } 2026 2027 vmxnet3_set_events(s, VMXNET3_ECR_LINK); 2028 vmxnet3_trigger_interrupt(s, s->event_int_idx); 2029 } 2030 2031 static NetClientInfo net_vmxnet3_info = { 2032 .type = NET_CLIENT_DRIVER_NIC, 2033 .size = sizeof(NICState), 2034 .receive = vmxnet3_receive, 2035 .link_status_changed = vmxnet3_set_link_status, 2036 }; 2037 2038 static bool vmxnet3_peer_has_vnet_hdr(VMXNET3State *s) 2039 { 2040 NetClientState *nc = qemu_get_queue(s->nic); 2041 2042 if (qemu_has_vnet_hdr(nc->peer)) { 2043 return true; 2044 } 2045 2046 return false; 2047 } 2048 2049 static void vmxnet3_net_uninit(VMXNET3State *s) 2050 { 2051 g_free(s->mcast_list); 2052 vmxnet3_deactivate_device(s); 2053 qemu_del_nic(s->nic); 2054 } 2055 2056 static void vmxnet3_net_init(VMXNET3State *s) 2057 { 2058 DeviceState *d = DEVICE(s); 2059 2060 VMW_CBPRN("vmxnet3_net_init called..."); 2061 2062 qemu_macaddr_default_if_unset(&s->conf.macaddr); 2063 2064 /* Windows guest will query the address that was set on init */ 2065 memcpy(&s->perm_mac.a, &s->conf.macaddr.a, sizeof(s->perm_mac.a)); 2066 2067 s->mcast_list = NULL; 2068 s->mcast_list_len = 0; 2069 2070 s->link_status_and_speed = VMXNET3_LINK_SPEED | VMXNET3_LINK_STATUS_UP; 2071 2072 VMW_CFPRN("Permanent MAC: " MAC_FMT, MAC_ARG(s->perm_mac.a)); 2073 2074 s->nic = qemu_new_nic(&net_vmxnet3_info, &s->conf, 2075 object_get_typename(OBJECT(s)), 2076 d->id, s); 2077 2078 s->peer_has_vhdr = vmxnet3_peer_has_vnet_hdr(s); 2079 s->tx_sop = true; 2080 s->skip_current_tx_pkt = false; 2081 s->tx_pkt = NULL; 2082 s->rx_pkt = NULL; 2083 s->rx_vlan_stripping = false; 2084 s->lro_supported = false; 2085 2086 if (s->peer_has_vhdr) { 2087 qemu_set_vnet_hdr_len(qemu_get_queue(s->nic)->peer, 2088 sizeof(struct virtio_net_hdr)); 2089 2090 qemu_using_vnet_hdr(qemu_get_queue(s->nic)->peer, 1); 2091 } 2092 2093 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); 2094 } 2095 2096 static void 2097 vmxnet3_unuse_msix_vectors(VMXNET3State *s, int num_vectors) 2098 { 2099 PCIDevice *d = PCI_DEVICE(s); 2100 int i; 2101 for (i = 0; i < num_vectors; i++) { 2102 msix_vector_unuse(d, i); 2103 } 2104 } 2105 2106 static void 2107 vmxnet3_use_msix_vectors(VMXNET3State *s, int num_vectors) 2108 { 2109 PCIDevice *d = PCI_DEVICE(s); 2110 int i; 2111 for (i = 0; i < num_vectors; i++) { 2112 msix_vector_use(d, i); 2113 } 2114 } 2115 2116 static bool 2117 vmxnet3_init_msix(VMXNET3State *s) 2118 { 2119 PCIDevice *d = PCI_DEVICE(s); 2120 int res = msix_init(d, VMXNET3_MAX_INTRS, 2121 &s->msix_bar, 2122 VMXNET3_MSIX_BAR_IDX, VMXNET3_OFF_MSIX_TABLE, 2123 &s->msix_bar, 2124 VMXNET3_MSIX_BAR_IDX, VMXNET3_OFF_MSIX_PBA(s), 2125 VMXNET3_MSIX_OFFSET(s), NULL); 2126 2127 if (0 > res) { 2128 VMW_WRPRN("Failed to initialize MSI-X, error %d", res); 2129 s->msix_used = false; 2130 } else { 2131 vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS); 2132 s->msix_used = true; 2133 } 2134 return s->msix_used; 2135 } 2136 2137 static void 2138 vmxnet3_cleanup_msix(VMXNET3State *s) 2139 { 2140 PCIDevice *d = PCI_DEVICE(s); 2141 2142 if (s->msix_used) { 2143 vmxnet3_unuse_msix_vectors(s, VMXNET3_MAX_INTRS); 2144 msix_uninit(d, &s->msix_bar, &s->msix_bar); 2145 } 2146 } 2147 2148 static void 2149 vmxnet3_cleanup_msi(VMXNET3State *s) 2150 { 2151 PCIDevice *d = PCI_DEVICE(s); 2152 2153 msi_uninit(d); 2154 } 2155 2156 static const MemoryRegionOps b0_ops = { 2157 .read = vmxnet3_io_bar0_read, 2158 .write = vmxnet3_io_bar0_write, 2159 .endianness = DEVICE_LITTLE_ENDIAN, 2160 .impl = { 2161 .min_access_size = 4, 2162 .max_access_size = 4, 2163 }, 2164 }; 2165 2166 static const MemoryRegionOps b1_ops = { 2167 .read = vmxnet3_io_bar1_read, 2168 .write = vmxnet3_io_bar1_write, 2169 .endianness = DEVICE_LITTLE_ENDIAN, 2170 .impl = { 2171 .min_access_size = 4, 2172 .max_access_size = 4, 2173 }, 2174 }; 2175 2176 static uint64_t vmxnet3_device_serial_num(VMXNET3State *s) 2177 { 2178 uint64_t dsn_payload; 2179 uint8_t *dsnp = (uint8_t *)&dsn_payload; 2180 2181 dsnp[0] = 0xfe; 2182 dsnp[1] = s->conf.macaddr.a[3]; 2183 dsnp[2] = s->conf.macaddr.a[4]; 2184 dsnp[3] = s->conf.macaddr.a[5]; 2185 dsnp[4] = s->conf.macaddr.a[0]; 2186 dsnp[5] = s->conf.macaddr.a[1]; 2187 dsnp[6] = s->conf.macaddr.a[2]; 2188 dsnp[7] = 0xff; 2189 return dsn_payload; 2190 } 2191 2192 2193 #define VMXNET3_USE_64BIT (true) 2194 #define VMXNET3_PER_VECTOR_MASK (false) 2195 2196 static void vmxnet3_pci_realize(PCIDevice *pci_dev, Error **errp) 2197 { 2198 VMXNET3State *s = VMXNET3(pci_dev); 2199 int ret; 2200 2201 VMW_CBPRN("Starting init..."); 2202 2203 memory_region_init_io(&s->bar0, OBJECT(s), &b0_ops, s, 2204 "vmxnet3-b0", VMXNET3_PT_REG_SIZE); 2205 pci_register_bar(pci_dev, VMXNET3_BAR0_IDX, 2206 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar0); 2207 2208 memory_region_init_io(&s->bar1, OBJECT(s), &b1_ops, s, 2209 "vmxnet3-b1", VMXNET3_VD_REG_SIZE); 2210 pci_register_bar(pci_dev, VMXNET3_BAR1_IDX, 2211 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar1); 2212 2213 memory_region_init(&s->msix_bar, OBJECT(s), "vmxnet3-msix-bar", 2214 VMXNET3_MSIX_BAR_SIZE); 2215 pci_register_bar(pci_dev, VMXNET3_MSIX_BAR_IDX, 2216 PCI_BASE_ADDRESS_SPACE_MEMORY, &s->msix_bar); 2217 2218 vmxnet3_reset_interrupt_states(s); 2219 2220 /* Interrupt pin A */ 2221 pci_dev->config[PCI_INTERRUPT_PIN] = 0x01; 2222 2223 ret = msi_init(pci_dev, VMXNET3_MSI_OFFSET(s), VMXNET3_MAX_NMSIX_INTRS, 2224 VMXNET3_USE_64BIT, VMXNET3_PER_VECTOR_MASK, NULL); 2225 /* Any error other than -ENOTSUP(board's MSI support is broken) 2226 * is a programming error. Fall back to INTx silently on -ENOTSUP */ 2227 assert(!ret || ret == -ENOTSUP); 2228 2229 if (!vmxnet3_init_msix(s)) { 2230 VMW_WRPRN("Failed to initialize MSI-X, configuration is inconsistent."); 2231 } 2232 2233 vmxnet3_net_init(s); 2234 2235 if (pci_is_express(pci_dev)) { 2236 if (pci_bus_is_express(pci_get_bus(pci_dev))) { 2237 pcie_endpoint_cap_init(pci_dev, VMXNET3_EXP_EP_OFFSET); 2238 } 2239 2240 pcie_dev_ser_num_init(pci_dev, VMXNET3_DSN_OFFSET, 2241 vmxnet3_device_serial_num(s)); 2242 } 2243 } 2244 2245 static void vmxnet3_instance_init(Object *obj) 2246 { 2247 VMXNET3State *s = VMXNET3(obj); 2248 device_add_bootindex_property(obj, &s->conf.bootindex, 2249 "bootindex", "/ethernet-phy@0", 2250 DEVICE(obj)); 2251 } 2252 2253 static void vmxnet3_pci_uninit(PCIDevice *pci_dev) 2254 { 2255 VMXNET3State *s = VMXNET3(pci_dev); 2256 2257 VMW_CBPRN("Starting uninit..."); 2258 2259 vmxnet3_net_uninit(s); 2260 2261 vmxnet3_cleanup_msix(s); 2262 2263 vmxnet3_cleanup_msi(s); 2264 } 2265 2266 static void vmxnet3_qdev_reset(DeviceState *dev) 2267 { 2268 PCIDevice *d = PCI_DEVICE(dev); 2269 VMXNET3State *s = VMXNET3(d); 2270 2271 VMW_CBPRN("Starting QDEV reset..."); 2272 vmxnet3_reset(s); 2273 } 2274 2275 static bool vmxnet3_mc_list_needed(void *opaque) 2276 { 2277 return true; 2278 } 2279 2280 static int vmxnet3_mcast_list_pre_load(void *opaque) 2281 { 2282 VMXNET3State *s = opaque; 2283 2284 s->mcast_list = g_malloc(s->mcast_list_buff_size); 2285 2286 return 0; 2287 } 2288 2289 2290 static int vmxnet3_pre_save(void *opaque) 2291 { 2292 VMXNET3State *s = opaque; 2293 2294 s->mcast_list_buff_size = s->mcast_list_len * sizeof(MACAddr); 2295 2296 return 0; 2297 } 2298 2299 static const VMStateDescription vmxstate_vmxnet3_mcast_list = { 2300 .name = "vmxnet3/mcast_list", 2301 .version_id = 1, 2302 .minimum_version_id = 1, 2303 .pre_load = vmxnet3_mcast_list_pre_load, 2304 .needed = vmxnet3_mc_list_needed, 2305 .fields = (VMStateField[]) { 2306 VMSTATE_VBUFFER_UINT32(mcast_list, VMXNET3State, 0, NULL, 2307 mcast_list_buff_size), 2308 VMSTATE_END_OF_LIST() 2309 } 2310 }; 2311 2312 static const VMStateDescription vmstate_vmxnet3_ring = { 2313 .name = "vmxnet3-ring", 2314 .version_id = 0, 2315 .fields = (VMStateField[]) { 2316 VMSTATE_UINT64(pa, Vmxnet3Ring), 2317 VMSTATE_UINT32(size, Vmxnet3Ring), 2318 VMSTATE_UINT32(cell_size, Vmxnet3Ring), 2319 VMSTATE_UINT32(next, Vmxnet3Ring), 2320 VMSTATE_UINT8(gen, Vmxnet3Ring), 2321 VMSTATE_END_OF_LIST() 2322 } 2323 }; 2324 2325 static const VMStateDescription vmstate_vmxnet3_tx_stats = { 2326 .name = "vmxnet3-tx-stats", 2327 .version_id = 0, 2328 .fields = (VMStateField[]) { 2329 VMSTATE_UINT64(TSOPktsTxOK, struct UPT1_TxStats), 2330 VMSTATE_UINT64(TSOBytesTxOK, struct UPT1_TxStats), 2331 VMSTATE_UINT64(ucastPktsTxOK, struct UPT1_TxStats), 2332 VMSTATE_UINT64(ucastBytesTxOK, struct UPT1_TxStats), 2333 VMSTATE_UINT64(mcastPktsTxOK, struct UPT1_TxStats), 2334 VMSTATE_UINT64(mcastBytesTxOK, struct UPT1_TxStats), 2335 VMSTATE_UINT64(bcastPktsTxOK, struct UPT1_TxStats), 2336 VMSTATE_UINT64(bcastBytesTxOK, struct UPT1_TxStats), 2337 VMSTATE_UINT64(pktsTxError, struct UPT1_TxStats), 2338 VMSTATE_UINT64(pktsTxDiscard, struct UPT1_TxStats), 2339 VMSTATE_END_OF_LIST() 2340 } 2341 }; 2342 2343 static const VMStateDescription vmstate_vmxnet3_txq_descr = { 2344 .name = "vmxnet3-txq-descr", 2345 .version_id = 0, 2346 .fields = (VMStateField[]) { 2347 VMSTATE_STRUCT(tx_ring, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_ring, 2348 Vmxnet3Ring), 2349 VMSTATE_STRUCT(comp_ring, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_ring, 2350 Vmxnet3Ring), 2351 VMSTATE_UINT8(intr_idx, Vmxnet3TxqDescr), 2352 VMSTATE_UINT64(tx_stats_pa, Vmxnet3TxqDescr), 2353 VMSTATE_STRUCT(txq_stats, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_tx_stats, 2354 struct UPT1_TxStats), 2355 VMSTATE_END_OF_LIST() 2356 } 2357 }; 2358 2359 static const VMStateDescription vmstate_vmxnet3_rx_stats = { 2360 .name = "vmxnet3-rx-stats", 2361 .version_id = 0, 2362 .fields = (VMStateField[]) { 2363 VMSTATE_UINT64(LROPktsRxOK, struct UPT1_RxStats), 2364 VMSTATE_UINT64(LROBytesRxOK, struct UPT1_RxStats), 2365 VMSTATE_UINT64(ucastPktsRxOK, struct UPT1_RxStats), 2366 VMSTATE_UINT64(ucastBytesRxOK, struct UPT1_RxStats), 2367 VMSTATE_UINT64(mcastPktsRxOK, struct UPT1_RxStats), 2368 VMSTATE_UINT64(mcastBytesRxOK, struct UPT1_RxStats), 2369 VMSTATE_UINT64(bcastPktsRxOK, struct UPT1_RxStats), 2370 VMSTATE_UINT64(bcastBytesRxOK, struct UPT1_RxStats), 2371 VMSTATE_UINT64(pktsRxOutOfBuf, struct UPT1_RxStats), 2372 VMSTATE_UINT64(pktsRxError, struct UPT1_RxStats), 2373 VMSTATE_END_OF_LIST() 2374 } 2375 }; 2376 2377 static const VMStateDescription vmstate_vmxnet3_rxq_descr = { 2378 .name = "vmxnet3-rxq-descr", 2379 .version_id = 0, 2380 .fields = (VMStateField[]) { 2381 VMSTATE_STRUCT_ARRAY(rx_ring, Vmxnet3RxqDescr, 2382 VMXNET3_RX_RINGS_PER_QUEUE, 0, 2383 vmstate_vmxnet3_ring, Vmxnet3Ring), 2384 VMSTATE_STRUCT(comp_ring, Vmxnet3RxqDescr, 0, vmstate_vmxnet3_ring, 2385 Vmxnet3Ring), 2386 VMSTATE_UINT8(intr_idx, Vmxnet3RxqDescr), 2387 VMSTATE_UINT64(rx_stats_pa, Vmxnet3RxqDescr), 2388 VMSTATE_STRUCT(rxq_stats, Vmxnet3RxqDescr, 0, vmstate_vmxnet3_rx_stats, 2389 struct UPT1_RxStats), 2390 VMSTATE_END_OF_LIST() 2391 } 2392 }; 2393 2394 static int vmxnet3_post_load(void *opaque, int version_id) 2395 { 2396 VMXNET3State *s = opaque; 2397 2398 net_tx_pkt_init(&s->tx_pkt, s->max_tx_frags); 2399 net_rx_pkt_init(&s->rx_pkt); 2400 2401 if (s->msix_used) { 2402 vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS); 2403 } 2404 2405 if (!vmxnet3_validate_queues(s)) { 2406 return -1; 2407 } 2408 vmxnet3_validate_interrupts(s); 2409 2410 return 0; 2411 } 2412 2413 static const VMStateDescription vmstate_vmxnet3_int_state = { 2414 .name = "vmxnet3-int-state", 2415 .version_id = 0, 2416 .fields = (VMStateField[]) { 2417 VMSTATE_BOOL(is_masked, Vmxnet3IntState), 2418 VMSTATE_BOOL(is_pending, Vmxnet3IntState), 2419 VMSTATE_BOOL(is_asserted, Vmxnet3IntState), 2420 VMSTATE_END_OF_LIST() 2421 } 2422 }; 2423 2424 static const VMStateDescription vmstate_vmxnet3 = { 2425 .name = "vmxnet3", 2426 .version_id = 1, 2427 .minimum_version_id = 1, 2428 .pre_save = vmxnet3_pre_save, 2429 .post_load = vmxnet3_post_load, 2430 .fields = (VMStateField[]) { 2431 VMSTATE_PCI_DEVICE(parent_obj, VMXNET3State), 2432 VMSTATE_MSIX(parent_obj, VMXNET3State), 2433 VMSTATE_BOOL(rx_packets_compound, VMXNET3State), 2434 VMSTATE_BOOL(rx_vlan_stripping, VMXNET3State), 2435 VMSTATE_BOOL(lro_supported, VMXNET3State), 2436 VMSTATE_UINT32(rx_mode, VMXNET3State), 2437 VMSTATE_UINT32(mcast_list_len, VMXNET3State), 2438 VMSTATE_UINT32(mcast_list_buff_size, VMXNET3State), 2439 VMSTATE_UINT32_ARRAY(vlan_table, VMXNET3State, VMXNET3_VFT_SIZE), 2440 VMSTATE_UINT32(mtu, VMXNET3State), 2441 VMSTATE_UINT16(max_rx_frags, VMXNET3State), 2442 VMSTATE_UINT32(max_tx_frags, VMXNET3State), 2443 VMSTATE_UINT8(event_int_idx, VMXNET3State), 2444 VMSTATE_BOOL(auto_int_masking, VMXNET3State), 2445 VMSTATE_UINT8(txq_num, VMXNET3State), 2446 VMSTATE_UINT8(rxq_num, VMXNET3State), 2447 VMSTATE_UINT32(device_active, VMXNET3State), 2448 VMSTATE_UINT32(last_command, VMXNET3State), 2449 VMSTATE_UINT32(link_status_and_speed, VMXNET3State), 2450 VMSTATE_UINT32(temp_mac, VMXNET3State), 2451 VMSTATE_UINT64(drv_shmem, VMXNET3State), 2452 VMSTATE_UINT64(temp_shared_guest_driver_memory, VMXNET3State), 2453 2454 VMSTATE_STRUCT_ARRAY(txq_descr, VMXNET3State, 2455 VMXNET3_DEVICE_MAX_TX_QUEUES, 0, vmstate_vmxnet3_txq_descr, 2456 Vmxnet3TxqDescr), 2457 VMSTATE_STRUCT_ARRAY(rxq_descr, VMXNET3State, 2458 VMXNET3_DEVICE_MAX_RX_QUEUES, 0, vmstate_vmxnet3_rxq_descr, 2459 Vmxnet3RxqDescr), 2460 VMSTATE_STRUCT_ARRAY(interrupt_states, VMXNET3State, 2461 VMXNET3_MAX_INTRS, 0, vmstate_vmxnet3_int_state, 2462 Vmxnet3IntState), 2463 2464 VMSTATE_END_OF_LIST() 2465 }, 2466 .subsections = (const VMStateDescription*[]) { 2467 &vmxstate_vmxnet3_mcast_list, 2468 NULL 2469 } 2470 }; 2471 2472 static Property vmxnet3_properties[] = { 2473 DEFINE_NIC_PROPERTIES(VMXNET3State, conf), 2474 DEFINE_PROP_BIT("x-old-msi-offsets", VMXNET3State, compat_flags, 2475 VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT, false), 2476 DEFINE_PROP_BIT("x-disable-pcie", VMXNET3State, compat_flags, 2477 VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT, false), 2478 DEFINE_PROP_END_OF_LIST(), 2479 }; 2480 2481 static void vmxnet3_realize(DeviceState *qdev, Error **errp) 2482 { 2483 VMXNET3Class *vc = VMXNET3_DEVICE_GET_CLASS(qdev); 2484 PCIDevice *pci_dev = PCI_DEVICE(qdev); 2485 VMXNET3State *s = VMXNET3(qdev); 2486 2487 if (!(s->compat_flags & VMXNET3_COMPAT_FLAG_DISABLE_PCIE)) { 2488 pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS; 2489 } 2490 2491 vc->parent_dc_realize(qdev, errp); 2492 } 2493 2494 static void vmxnet3_class_init(ObjectClass *class, void *data) 2495 { 2496 DeviceClass *dc = DEVICE_CLASS(class); 2497 PCIDeviceClass *c = PCI_DEVICE_CLASS(class); 2498 VMXNET3Class *vc = VMXNET3_DEVICE_CLASS(class); 2499 2500 c->realize = vmxnet3_pci_realize; 2501 c->exit = vmxnet3_pci_uninit; 2502 c->vendor_id = PCI_VENDOR_ID_VMWARE; 2503 c->device_id = PCI_DEVICE_ID_VMWARE_VMXNET3; 2504 c->revision = PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION; 2505 c->romfile = "efi-vmxnet3.rom"; 2506 c->class_id = PCI_CLASS_NETWORK_ETHERNET; 2507 c->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE; 2508 c->subsystem_id = PCI_DEVICE_ID_VMWARE_VMXNET3; 2509 device_class_set_parent_realize(dc, vmxnet3_realize, 2510 &vc->parent_dc_realize); 2511 dc->desc = "VMWare Paravirtualized Ethernet v3"; 2512 dc->reset = vmxnet3_qdev_reset; 2513 dc->vmsd = &vmstate_vmxnet3; 2514 device_class_set_props(dc, vmxnet3_properties); 2515 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); 2516 } 2517 2518 static const TypeInfo vmxnet3_info = { 2519 .name = TYPE_VMXNET3, 2520 .parent = TYPE_PCI_DEVICE, 2521 .class_size = sizeof(VMXNET3Class), 2522 .instance_size = sizeof(VMXNET3State), 2523 .class_init = vmxnet3_class_init, 2524 .instance_init = vmxnet3_instance_init, 2525 .interfaces = (InterfaceInfo[]) { 2526 { INTERFACE_PCIE_DEVICE }, 2527 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 2528 { } 2529 }, 2530 }; 2531 2532 static void vmxnet3_register_types(void) 2533 { 2534 VMW_CBPRN("vmxnet3_register_types called..."); 2535 type_register_static(&vmxnet3_info); 2536 } 2537 2538 type_init(vmxnet3_register_types) 2539