1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2008-2017 Cisco Systems, Inc. All rights reserved. 3 * Copyright 2007 Nuova Systems, Inc. All rights reserved. 4 */ 5 6 #include <rte_memzone.h> 7 #include <rte_memcpy.h> 8 #include <rte_string_fns.h> 9 10 #include "vnic_dev.h" 11 #include "vnic_resource.h" 12 #include "vnic_devcmd.h" 13 #include "vnic_nic.h" 14 #include "vnic_stats.h" 15 16 17 enum vnic_proxy_type { 18 PROXY_NONE, 19 PROXY_BY_BDF, 20 PROXY_BY_INDEX, 21 }; 22 23 struct vnic_res { 24 void __iomem *vaddr; 25 dma_addr_t bus_addr; 26 unsigned int count; 27 }; 28 29 struct vnic_intr_coal_timer_info { 30 u32 mul; 31 u32 div; 32 u32 max_usec; 33 }; 34 35 struct vnic_dev { 36 void *priv; 37 struct rte_pci_device *pdev; 38 struct vnic_res res[RES_TYPE_MAX]; 39 enum vnic_dev_intr_mode intr_mode; 40 struct vnic_devcmd __iomem *devcmd; 41 struct vnic_devcmd_notify *notify; 42 struct vnic_devcmd_notify notify_copy; 43 dma_addr_t notify_pa; 44 u32 notify_sz; 45 dma_addr_t linkstatus_pa; 46 struct vnic_stats *stats; 47 dma_addr_t stats_pa; 48 struct vnic_devcmd_fw_info *fw_info; 49 dma_addr_t fw_info_pa; 50 enum vnic_proxy_type proxy; 51 u32 proxy_index; 52 u64 args[VNIC_DEVCMD_NARGS]; 53 int in_reset; 54 struct vnic_intr_coal_timer_info intr_coal_timer_info; 55 void *(*alloc_consistent)(void *priv, size_t size, 56 dma_addr_t *dma_handle, u8 *name); 57 void (*free_consistent)(void *priv, 58 size_t size, void *vaddr, 59 dma_addr_t dma_handle); 60 }; 61 62 #define VNIC_MAX_RES_HDR_SIZE \ 63 (sizeof(struct vnic_resource_header) + \ 64 sizeof(struct vnic_resource) * RES_TYPE_MAX) 65 #define VNIC_RES_STRIDE 128 66 67 void *vnic_dev_priv(struct vnic_dev *vdev) 68 { 69 return vdev->priv; 70 } 71 72 void vnic_register_cbacks(struct vnic_dev *vdev, 73 void *(*alloc_consistent)(void *priv, size_t size, 74 dma_addr_t *dma_handle, u8 *name), 75 void (*free_consistent)(void *priv, 76 size_t size, void *vaddr, 77 dma_addr_t dma_handle)) 78 { 79 vdev->alloc_consistent = alloc_consistent; 80 vdev->free_consistent = free_consistent; 81 } 82 83 static int vnic_dev_discover_res(struct vnic_dev *vdev, 84 struct vnic_dev_bar *bar, unsigned int num_bars) 85 { 86 struct vnic_resource_header __iomem *rh; 87 struct mgmt_barmap_hdr __iomem *mrh; 88 struct vnic_resource __iomem *r; 89 u8 type; 90 91 if (num_bars == 0) 92 return -EINVAL; 93 94 if (bar->len < VNIC_MAX_RES_HDR_SIZE) { 95 pr_err("vNIC BAR0 res hdr length error\n"); 96 return -EINVAL; 97 } 98 99 rh = bar->vaddr; 100 mrh = bar->vaddr; 101 if (!rh) { 102 pr_err("vNIC BAR0 res hdr not mem-mapped\n"); 103 return -EINVAL; 104 } 105 106 /* Check for mgmt vnic in addition to normal vnic */ 107 if ((ioread32(&rh->magic) != VNIC_RES_MAGIC) || 108 (ioread32(&rh->version) != VNIC_RES_VERSION)) { 109 if ((ioread32(&mrh->magic) != MGMTVNIC_MAGIC) || 110 (ioread32(&mrh->version) != MGMTVNIC_VERSION)) { 111 pr_err("vNIC BAR0 res magic/version error " \ 112 "exp (%lx/%lx) or (%lx/%lx), curr (%x/%x)\n", 113 VNIC_RES_MAGIC, VNIC_RES_VERSION, 114 MGMTVNIC_MAGIC, MGMTVNIC_VERSION, 115 ioread32(&rh->magic), ioread32(&rh->version)); 116 return -EINVAL; 117 } 118 } 119 120 if (ioread32(&mrh->magic) == MGMTVNIC_MAGIC) 121 r = (struct vnic_resource __iomem *)(mrh + 1); 122 else 123 r = (struct vnic_resource __iomem *)(rh + 1); 124 125 126 while ((type = ioread8(&r->type)) != RES_TYPE_EOL) { 127 u8 bar_num = ioread8(&r->bar); 128 u32 bar_offset = ioread32(&r->bar_offset); 129 u32 count = ioread32(&r->count); 130 u32 len; 131 132 r++; 133 134 if (bar_num >= num_bars) 135 continue; 136 137 if (!bar[bar_num].len || !bar[bar_num].vaddr) 138 continue; 139 140 switch (type) { 141 case RES_TYPE_WQ: 142 case RES_TYPE_RQ: 143 case RES_TYPE_CQ: 144 case RES_TYPE_INTR_CTRL: 145 /* each count is stride bytes long */ 146 len = count * VNIC_RES_STRIDE; 147 if (len + bar_offset > bar[bar_num].len) { 148 pr_err("vNIC BAR0 resource %d " \ 149 "out-of-bounds, offset 0x%x + " \ 150 "size 0x%x > bar len 0x%lx\n", 151 type, bar_offset, 152 len, 153 bar[bar_num].len); 154 return -EINVAL; 155 } 156 break; 157 case RES_TYPE_INTR_PBA_LEGACY: 158 case RES_TYPE_DEVCMD: 159 len = count; 160 break; 161 default: 162 continue; 163 } 164 165 vdev->res[type].count = count; 166 vdev->res[type].vaddr = (char __iomem *)bar[bar_num].vaddr + 167 bar_offset; 168 vdev->res[type].bus_addr = bar[bar_num].bus_addr + bar_offset; 169 } 170 171 return 0; 172 } 173 174 unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev, 175 enum vnic_res_type type) 176 { 177 return vdev->res[type].count; 178 } 179 180 void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, 181 unsigned int index) 182 { 183 if (!vdev->res[type].vaddr) 184 return NULL; 185 186 switch (type) { 187 case RES_TYPE_WQ: 188 case RES_TYPE_RQ: 189 case RES_TYPE_CQ: 190 case RES_TYPE_INTR_CTRL: 191 return (char __iomem *)vdev->res[type].vaddr + 192 index * VNIC_RES_STRIDE; 193 default: 194 return (char __iomem *)vdev->res[type].vaddr; 195 } 196 } 197 198 unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring, 199 unsigned int desc_count, unsigned int desc_size) 200 { 201 /* The base address of the desc rings must be 512 byte aligned. 202 * Descriptor count is aligned to groups of 32 descriptors. A 203 * count of 0 means the maximum 4096 descriptors. Descriptor 204 * size is aligned to 16 bytes. 205 */ 206 207 unsigned int count_align = 32; 208 unsigned int desc_align = 16; 209 210 ring->base_align = 512; 211 212 if (desc_count == 0) 213 desc_count = 4096; 214 215 ring->desc_count = VNIC_ALIGN(desc_count, count_align); 216 217 ring->desc_size = VNIC_ALIGN(desc_size, desc_align); 218 219 ring->size = ring->desc_count * ring->desc_size; 220 ring->size_unaligned = ring->size + ring->base_align; 221 222 return ring->size_unaligned; 223 } 224 225 void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring) 226 { 227 memset(ring->descs, 0, ring->size); 228 } 229 230 int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, 231 struct vnic_dev_ring *ring, 232 unsigned int desc_count, unsigned int desc_size, 233 __attribute__((unused)) unsigned int socket_id, 234 char *z_name) 235 { 236 void *alloc_addr; 237 dma_addr_t alloc_pa = 0; 238 239 vnic_dev_desc_ring_size(ring, desc_count, desc_size); 240 alloc_addr = vdev->alloc_consistent(vdev->priv, 241 ring->size_unaligned, 242 &alloc_pa, (u8 *)z_name); 243 if (!alloc_addr) { 244 pr_err("Failed to allocate ring (size=%d), aborting\n", 245 (int)ring->size); 246 return -ENOMEM; 247 } 248 ring->descs_unaligned = alloc_addr; 249 if (!alloc_pa) { 250 pr_err("Failed to map allocated ring (size=%d), aborting\n", 251 (int)ring->size); 252 vdev->free_consistent(vdev->priv, 253 ring->size_unaligned, 254 alloc_addr, 255 alloc_pa); 256 return -ENOMEM; 257 } 258 ring->base_addr_unaligned = alloc_pa; 259 260 ring->base_addr = VNIC_ALIGN(ring->base_addr_unaligned, 261 ring->base_align); 262 ring->descs = (u8 *)ring->descs_unaligned + 263 (ring->base_addr - ring->base_addr_unaligned); 264 265 vnic_dev_clear_desc_ring(ring); 266 267 ring->desc_avail = ring->desc_count - 1; 268 269 return 0; 270 } 271 272 void vnic_dev_free_desc_ring(__attribute__((unused)) struct vnic_dev *vdev, 273 struct vnic_dev_ring *ring) 274 { 275 if (ring->descs) { 276 vdev->free_consistent(vdev->priv, 277 ring->size_unaligned, 278 ring->descs_unaligned, 279 ring->base_addr_unaligned); 280 ring->descs = NULL; 281 } 282 } 283 284 static int _vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, 285 int wait) 286 { 287 struct vnic_devcmd __iomem *devcmd = vdev->devcmd; 288 unsigned int i; 289 int delay; 290 u32 status; 291 int err; 292 293 status = ioread32(&devcmd->status); 294 if (status == 0xFFFFFFFF) { 295 /* PCI-e target device is gone */ 296 return -ENODEV; 297 } 298 if (status & STAT_BUSY) { 299 300 pr_err("Busy devcmd %d\n", _CMD_N(cmd)); 301 return -EBUSY; 302 } 303 304 if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) { 305 for (i = 0; i < VNIC_DEVCMD_NARGS; i++) 306 writeq(vdev->args[i], &devcmd->args[i]); 307 wmb(); /* complete all writes initiated till now */ 308 } 309 310 iowrite32(cmd, &devcmd->cmd); 311 312 if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT)) 313 return 0; 314 315 for (delay = 0; delay < wait; delay++) { 316 317 udelay(100); 318 319 status = ioread32(&devcmd->status); 320 if (status == 0xFFFFFFFF) { 321 /* PCI-e target device is gone */ 322 return -ENODEV; 323 } 324 325 if (!(status & STAT_BUSY)) { 326 if (status & STAT_ERROR) { 327 err = -(int)readq(&devcmd->args[0]); 328 if (cmd != CMD_CAPABILITY) 329 pr_err("Devcmd %d failed " \ 330 "with error code %d\n", 331 _CMD_N(cmd), err); 332 return err; 333 } 334 335 if (_CMD_DIR(cmd) & _CMD_DIR_READ) { 336 rmb();/* finish all reads initiated till now */ 337 for (i = 0; i < VNIC_DEVCMD_NARGS; i++) 338 vdev->args[i] = readq(&devcmd->args[i]); 339 } 340 341 return 0; 342 } 343 } 344 345 pr_err("Timedout devcmd %d\n", _CMD_N(cmd)); 346 return -ETIMEDOUT; 347 } 348 349 static int vnic_dev_cmd_proxy(struct vnic_dev *vdev, 350 enum vnic_devcmd_cmd proxy_cmd, enum vnic_devcmd_cmd cmd, 351 u64 *args, int nargs, int wait) 352 { 353 u32 status; 354 int err; 355 356 /* 357 * Proxy command consumes 2 arguments. One for proxy index, 358 * the other is for command to be proxied 359 */ 360 if (nargs > VNIC_DEVCMD_NARGS - 2) { 361 pr_err("number of args %d exceeds the maximum\n", nargs); 362 return -EINVAL; 363 } 364 memset(vdev->args, 0, sizeof(vdev->args)); 365 366 vdev->args[0] = vdev->proxy_index; 367 vdev->args[1] = cmd; 368 memcpy(&vdev->args[2], args, nargs * sizeof(args[0])); 369 370 err = _vnic_dev_cmd(vdev, proxy_cmd, wait); 371 if (err) 372 return err; 373 374 status = (u32)vdev->args[0]; 375 if (status & STAT_ERROR) { 376 err = (int)vdev->args[1]; 377 if (err != ERR_ECMDUNKNOWN || 378 cmd != CMD_CAPABILITY) 379 pr_err("Error %d proxy devcmd %d\n", err, _CMD_N(cmd)); 380 return err; 381 } 382 383 memcpy(args, &vdev->args[1], nargs * sizeof(args[0])); 384 385 return 0; 386 } 387 388 static int vnic_dev_cmd_no_proxy(struct vnic_dev *vdev, 389 enum vnic_devcmd_cmd cmd, u64 *args, int nargs, int wait) 390 { 391 int err; 392 393 if (nargs > VNIC_DEVCMD_NARGS) { 394 pr_err("number of args %d exceeds the maximum\n", nargs); 395 return -EINVAL; 396 } 397 memset(vdev->args, 0, sizeof(vdev->args)); 398 memcpy(vdev->args, args, nargs * sizeof(args[0])); 399 400 err = _vnic_dev_cmd(vdev, cmd, wait); 401 402 memcpy(args, vdev->args, nargs * sizeof(args[0])); 403 404 return err; 405 } 406 407 int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, 408 u64 *a0, u64 *a1, int wait) 409 { 410 u64 args[2]; 411 int err; 412 413 args[0] = *a0; 414 args[1] = *a1; 415 memset(vdev->args, 0, sizeof(vdev->args)); 416 417 switch (vdev->proxy) { 418 case PROXY_BY_INDEX: 419 err = vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_INDEX, cmd, 420 args, ARRAY_SIZE(args), wait); 421 break; 422 case PROXY_BY_BDF: 423 err = vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_BDF, cmd, 424 args, ARRAY_SIZE(args), wait); 425 break; 426 case PROXY_NONE: 427 default: 428 err = vnic_dev_cmd_no_proxy(vdev, cmd, args, 2, wait); 429 break; 430 } 431 432 if (err == 0) { 433 *a0 = args[0]; 434 *a1 = args[1]; 435 } 436 437 return err; 438 } 439 440 int vnic_dev_cmd_args(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, 441 u64 *args, int nargs, int wait) 442 { 443 switch (vdev->proxy) { 444 case PROXY_BY_INDEX: 445 return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_INDEX, cmd, 446 args, nargs, wait); 447 case PROXY_BY_BDF: 448 return vnic_dev_cmd_proxy(vdev, CMD_PROXY_BY_BDF, cmd, 449 args, nargs, wait); 450 case PROXY_NONE: 451 default: 452 return vnic_dev_cmd_no_proxy(vdev, cmd, args, nargs, wait); 453 } 454 } 455 456 static int vnic_dev_advanced_filters_cap(struct vnic_dev *vdev, u64 *args, 457 int nargs) 458 { 459 memset(args, 0, nargs * sizeof(*args)); 460 args[0] = CMD_ADD_ADV_FILTER; 461 args[1] = FILTER_CAP_MODE_V1_FLAG; 462 return vnic_dev_cmd_args(vdev, CMD_CAPABILITY, args, nargs, 1000); 463 } 464 465 int vnic_dev_capable_adv_filters(struct vnic_dev *vdev) 466 { 467 u64 a0 = CMD_ADD_ADV_FILTER, a1 = 0; 468 int wait = 1000; 469 int err; 470 471 err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait); 472 if (err) 473 return 0; 474 return (a1 >= (u32)FILTER_DPDK_1); 475 } 476 477 /* Determine the "best" filtering mode VIC is capaible of. Returns one of 3 478 * value or 0 on error: 479 * FILTER_DPDK_1- advanced filters availabile 480 * FILTER_USNIC_IP_FLAG - advanced filters but with the restriction that 481 * the IP layer must explicitly specified. I.e. cannot have a UDP 482 * filter that matches both IPv4 and IPv6. 483 * FILTER_IPV4_5TUPLE - fallback if either of the 2 above aren't available. 484 * all other filter types are not available. 485 * Retrun true in filter_tags if supported 486 */ 487 int vnic_dev_capable_filter_mode(struct vnic_dev *vdev, u32 *mode, 488 u8 *filter_actions) 489 { 490 u64 args[4]; 491 int err; 492 u32 max_level = 0; 493 494 err = vnic_dev_advanced_filters_cap(vdev, args, 4); 495 496 /* determine supported filter actions */ 497 *filter_actions = FILTER_ACTION_RQ_STEERING_FLAG; /* always available */ 498 if (args[2] == FILTER_CAP_MODE_V1) 499 *filter_actions = args[3]; 500 501 if (err || ((args[0] == 1) && (args[1] == 0))) { 502 /* Adv filter Command not supported or adv filters available but 503 * not enabled. Try the normal filter capability command. 504 */ 505 args[0] = CMD_ADD_FILTER; 506 args[1] = 0; 507 err = vnic_dev_cmd_args(vdev, CMD_CAPABILITY, args, 2, 1000); 508 if (err) 509 return err; 510 max_level = args[1]; 511 goto parse_max_level; 512 } else if (args[2] == FILTER_CAP_MODE_V1) { 513 /* parse filter capability mask in args[1] */ 514 if (args[1] & FILTER_DPDK_1_FLAG) 515 *mode = FILTER_DPDK_1; 516 else if (args[1] & FILTER_USNIC_IP_FLAG) 517 *mode = FILTER_USNIC_IP; 518 else if (args[1] & FILTER_IPV4_5TUPLE_FLAG) 519 *mode = FILTER_IPV4_5TUPLE; 520 return 0; 521 } 522 max_level = args[1]; 523 parse_max_level: 524 if (max_level >= (u32)FILTER_USNIC_IP) 525 *mode = FILTER_USNIC_IP; 526 else 527 *mode = FILTER_IPV4_5TUPLE; 528 return 0; 529 } 530 531 void vnic_dev_capable_udp_rss_weak(struct vnic_dev *vdev, bool *cfg_chk, 532 bool *weak) 533 { 534 u64 a0 = CMD_NIC_CFG, a1 = 0; 535 int wait = 1000; 536 int err; 537 538 *cfg_chk = false; 539 *weak = false; 540 err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait); 541 if (err == 0 && a0 != 0 && a1 != 0) { 542 *cfg_chk = true; 543 *weak = !!((a1 >> 32) & CMD_NIC_CFG_CAPF_UDP_WEAK); 544 } 545 } 546 547 int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd) 548 { 549 u64 a0 = (u32)cmd, a1 = 0; 550 int wait = 1000; 551 int err; 552 553 err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait); 554 555 return !(err || a0); 556 } 557 558 int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, size_t size, 559 void *value) 560 { 561 u64 a0, a1; 562 int wait = 1000; 563 int err; 564 565 a0 = offset; 566 a1 = size; 567 568 err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait); 569 570 switch (size) { 571 case 1: 572 *(u8 *)value = (u8)a0; 573 break; 574 case 2: 575 *(u16 *)value = (u16)a0; 576 break; 577 case 4: 578 *(u32 *)value = (u32)a0; 579 break; 580 case 8: 581 *(u64 *)value = a0; 582 break; 583 default: 584 BUG(); 585 break; 586 } 587 588 return err; 589 } 590 591 int vnic_dev_stats_clear(struct vnic_dev *vdev) 592 { 593 u64 a0 = 0, a1 = 0; 594 int wait = 1000; 595 596 return vnic_dev_cmd(vdev, CMD_STATS_CLEAR, &a0, &a1, wait); 597 } 598 599 int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats) 600 { 601 u64 a0, a1; 602 int wait = 1000; 603 604 if (!vdev->stats) 605 return -ENOMEM; 606 607 *stats = vdev->stats; 608 a0 = vdev->stats_pa; 609 a1 = sizeof(struct vnic_stats); 610 611 return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait); 612 } 613 614 int vnic_dev_close(struct vnic_dev *vdev) 615 { 616 u64 a0 = 0, a1 = 0; 617 int wait = 1000; 618 619 return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait); 620 } 621 622 int vnic_dev_enable_wait(struct vnic_dev *vdev) 623 { 624 u64 a0 = 0, a1 = 0; 625 int wait = 1000; 626 627 if (vnic_dev_capable(vdev, CMD_ENABLE_WAIT)) 628 return vnic_dev_cmd(vdev, CMD_ENABLE_WAIT, &a0, &a1, wait); 629 else 630 return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait); 631 } 632 633 int vnic_dev_disable(struct vnic_dev *vdev) 634 { 635 u64 a0 = 0, a1 = 0; 636 int wait = 1000; 637 638 return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait); 639 } 640 641 int vnic_dev_open(struct vnic_dev *vdev, int arg) 642 { 643 u64 a0 = (u32)arg, a1 = 0; 644 int wait = 1000; 645 646 return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait); 647 } 648 649 int vnic_dev_open_done(struct vnic_dev *vdev, int *done) 650 { 651 u64 a0 = 0, a1 = 0; 652 int wait = 1000; 653 int err; 654 655 *done = 0; 656 657 err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait); 658 if (err) 659 return err; 660 661 *done = (a0 == 0); 662 663 return 0; 664 } 665 666 int vnic_dev_get_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) 667 { 668 u64 a0 = 0, a1 = 0; 669 int wait = 1000; 670 int err, i; 671 672 for (i = 0; i < ETH_ALEN; i++) 673 mac_addr[i] = 0; 674 675 err = vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait); 676 if (err) 677 return err; 678 679 for (i = 0; i < ETH_ALEN; i++) 680 mac_addr[i] = ((u8 *)&a0)[i]; 681 682 return 0; 683 } 684 685 int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast, 686 int broadcast, int promisc, int allmulti) 687 { 688 u64 a0, a1 = 0; 689 int wait = 1000; 690 int err; 691 692 a0 = (directed ? CMD_PFILTER_DIRECTED : 0) | 693 (multicast ? CMD_PFILTER_MULTICAST : 0) | 694 (broadcast ? CMD_PFILTER_BROADCAST : 0) | 695 (promisc ? CMD_PFILTER_PROMISCUOUS : 0) | 696 (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0); 697 698 err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait); 699 if (err) 700 pr_err("Can't set packet filter\n"); 701 702 return err; 703 } 704 705 int vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr) 706 { 707 u64 a0 = 0, a1 = 0; 708 int wait = 1000; 709 int err; 710 int i; 711 712 for (i = 0; i < ETH_ALEN; i++) 713 ((u8 *)&a0)[i] = addr[i]; 714 715 err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); 716 if (err) 717 pr_err("Can't add addr [%02x:%02x:%02x:%02x:%02x:%02x], %d\n", 718 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5], 719 err); 720 721 return err; 722 } 723 724 int vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr) 725 { 726 u64 a0 = 0, a1 = 0; 727 int wait = 1000; 728 int err; 729 int i; 730 731 for (i = 0; i < ETH_ALEN; i++) 732 ((u8 *)&a0)[i] = addr[i]; 733 734 err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait); 735 if (err) 736 pr_err("Can't del addr [%02x:%02x:%02x:%02x:%02x:%02x], %d\n", 737 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5], 738 err); 739 740 return err; 741 } 742 743 int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev, 744 u8 ig_vlan_rewrite_mode) 745 { 746 u64 a0 = ig_vlan_rewrite_mode, a1 = 0; 747 int wait = 1000; 748 749 if (vnic_dev_capable(vdev, CMD_IG_VLAN_REWRITE_MODE)) 750 return vnic_dev_cmd(vdev, CMD_IG_VLAN_REWRITE_MODE, 751 &a0, &a1, wait); 752 else 753 return 0; 754 } 755 756 void vnic_dev_set_reset_flag(struct vnic_dev *vdev, int state) 757 { 758 vdev->in_reset = state; 759 } 760 761 static inline int vnic_dev_in_reset(struct vnic_dev *vdev) 762 { 763 return vdev->in_reset; 764 } 765 766 int vnic_dev_notify_setcmd(struct vnic_dev *vdev, 767 void *notify_addr, dma_addr_t notify_pa, u16 intr) 768 { 769 u64 a0, a1; 770 int wait = 1000; 771 int r; 772 773 memset(notify_addr, 0, sizeof(struct vnic_devcmd_notify)); 774 if (!vnic_dev_in_reset(vdev)) { 775 vdev->notify = notify_addr; 776 vdev->notify_pa = notify_pa; 777 } 778 779 a0 = (u64)notify_pa; 780 a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL; 781 a1 += sizeof(struct vnic_devcmd_notify); 782 783 r = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); 784 if (!vnic_dev_in_reset(vdev)) 785 vdev->notify_sz = (r == 0) ? (u32)a1 : 0; 786 787 return r; 788 } 789 790 int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr) 791 { 792 void *notify_addr = NULL; 793 dma_addr_t notify_pa = 0; 794 char name[NAME_MAX]; 795 static u32 instance; 796 797 if (vdev->notify || vdev->notify_pa) { 798 return vnic_dev_notify_setcmd(vdev, vdev->notify, 799 vdev->notify_pa, intr); 800 } 801 if (!vnic_dev_in_reset(vdev)) { 802 snprintf((char *)name, sizeof(name), 803 "vnic_notify-%u", instance++); 804 notify_addr = vdev->alloc_consistent(vdev->priv, 805 sizeof(struct vnic_devcmd_notify), 806 ¬ify_pa, (u8 *)name); 807 if (!notify_addr) 808 return -ENOMEM; 809 } 810 811 return vnic_dev_notify_setcmd(vdev, notify_addr, notify_pa, intr); 812 } 813 814 int vnic_dev_notify_unsetcmd(struct vnic_dev *vdev) 815 { 816 u64 a0, a1; 817 int wait = 1000; 818 int err; 819 820 a0 = 0; /* paddr = 0 to unset notify buffer */ 821 a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */ 822 a1 += sizeof(struct vnic_devcmd_notify); 823 824 err = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); 825 if (!vnic_dev_in_reset(vdev)) { 826 vdev->notify = NULL; 827 vdev->notify_pa = 0; 828 vdev->notify_sz = 0; 829 } 830 831 return err; 832 } 833 834 int vnic_dev_notify_unset(struct vnic_dev *vdev) 835 { 836 if (vdev->notify && !vnic_dev_in_reset(vdev)) { 837 vdev->free_consistent(vdev->priv, 838 sizeof(struct vnic_devcmd_notify), 839 vdev->notify, 840 vdev->notify_pa); 841 } 842 843 return vnic_dev_notify_unsetcmd(vdev); 844 } 845 846 static int vnic_dev_notify_ready(struct vnic_dev *vdev) 847 { 848 u32 *words; 849 unsigned int nwords = vdev->notify_sz / 4; 850 unsigned int i; 851 u32 csum; 852 853 if (!vdev->notify || !vdev->notify_sz) 854 return 0; 855 856 do { 857 csum = 0; 858 rte_memcpy(&vdev->notify_copy, vdev->notify, vdev->notify_sz); 859 words = (u32 *)&vdev->notify_copy; 860 for (i = 1; i < nwords; i++) 861 csum += words[i]; 862 } while (csum != words[0]); 863 864 return 1; 865 } 866 867 int vnic_dev_init(struct vnic_dev *vdev, int arg) 868 { 869 u64 a0 = (u32)arg, a1 = 0; 870 int wait = 1000; 871 int r = 0; 872 873 if (vnic_dev_capable(vdev, CMD_INIT)) 874 r = vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait); 875 else { 876 vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait); 877 if (a0 & CMD_INITF_DEFAULT_MAC) { 878 /* Emulate these for old CMD_INIT_v1 which 879 * didn't pass a0 so no CMD_INITF_*. 880 */ 881 vnic_dev_cmd(vdev, CMD_GET_MAC_ADDR, &a0, &a1, wait); 882 vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); 883 } 884 } 885 return r; 886 } 887 888 void vnic_dev_intr_coal_timer_info_default(struct vnic_dev *vdev) 889 { 890 /* Default: hardware intr coal timer is in units of 1.5 usecs */ 891 vdev->intr_coal_timer_info.mul = 2; 892 vdev->intr_coal_timer_info.div = 3; 893 vdev->intr_coal_timer_info.max_usec = 894 vnic_dev_intr_coal_timer_hw_to_usec(vdev, 0xffff); 895 } 896 897 int vnic_dev_link_status(struct vnic_dev *vdev) 898 { 899 if (!vnic_dev_notify_ready(vdev)) 900 return 0; 901 902 return vdev->notify_copy.link_state; 903 } 904 905 u32 vnic_dev_port_speed(struct vnic_dev *vdev) 906 { 907 if (!vnic_dev_notify_ready(vdev)) 908 return 0; 909 910 return vdev->notify_copy.port_speed; 911 } 912 913 u32 vnic_dev_intr_coal_timer_usec_to_hw(struct vnic_dev *vdev, u32 usec) 914 { 915 return (usec * vdev->intr_coal_timer_info.mul) / 916 vdev->intr_coal_timer_info.div; 917 } 918 919 u32 vnic_dev_intr_coal_timer_hw_to_usec(struct vnic_dev *vdev, u32 hw_cycles) 920 { 921 return (hw_cycles * vdev->intr_coal_timer_info.div) / 922 vdev->intr_coal_timer_info.mul; 923 } 924 925 u32 vnic_dev_get_intr_coal_timer_max(struct vnic_dev *vdev) 926 { 927 return vdev->intr_coal_timer_info.max_usec; 928 } 929 930 int vnic_dev_alloc_stats_mem(struct vnic_dev *vdev) 931 { 932 char name[NAME_MAX]; 933 static u32 instance; 934 935 snprintf((char *)name, sizeof(name), "vnic_stats-%u", instance++); 936 vdev->stats = vdev->alloc_consistent(vdev->priv, 937 sizeof(struct vnic_stats), 938 &vdev->stats_pa, (u8 *)name); 939 return vdev->stats == NULL ? -ENOMEM : 0; 940 } 941 942 void vnic_dev_unregister(struct vnic_dev *vdev) 943 { 944 if (vdev) { 945 if (vdev->notify) 946 vdev->free_consistent(vdev->priv, 947 sizeof(struct vnic_devcmd_notify), 948 vdev->notify, 949 vdev->notify_pa); 950 if (vdev->stats) 951 vdev->free_consistent(vdev->priv, 952 sizeof(struct vnic_stats), 953 vdev->stats, vdev->stats_pa); 954 if (vdev->fw_info) 955 vdev->free_consistent(vdev->priv, 956 sizeof(struct vnic_devcmd_fw_info), 957 vdev->fw_info, vdev->fw_info_pa); 958 rte_free(vdev); 959 } 960 } 961 962 struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev, 963 void *priv, struct rte_pci_device *pdev, struct vnic_dev_bar *bar, 964 unsigned int num_bars) 965 { 966 if (!vdev) { 967 char name[NAME_MAX]; 968 snprintf((char *)name, sizeof(name), "%s-vnic", 969 pdev->device.name); 970 vdev = (struct vnic_dev *)rte_zmalloc_socket(name, 971 sizeof(struct vnic_dev), 972 RTE_CACHE_LINE_SIZE, 973 pdev->device.numa_node); 974 if (!vdev) 975 return NULL; 976 } 977 978 vdev->priv = priv; 979 vdev->pdev = pdev; 980 981 if (vnic_dev_discover_res(vdev, bar, num_bars)) 982 goto err_out; 983 984 vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0); 985 if (!vdev->devcmd) 986 goto err_out; 987 988 return vdev; 989 990 err_out: 991 vnic_dev_unregister(vdev); 992 return NULL; 993 } 994 995 /* 996 * vnic_dev_classifier: Add/Delete classifier entries 997 * @vdev: vdev of the device 998 * @cmd: CLSF_ADD for Add filter 999 * CLSF_DEL for Delete filter 1000 * @entry: In case of ADD filter, the caller passes the RQ number in this 1001 * variable. 1002 * This function stores the filter_id returned by the 1003 * firmware in the same variable before return; 1004 * 1005 * In case of DEL filter, the caller passes the RQ number. Return 1006 * value is irrelevant. 1007 * @data: filter data 1008 * @action: action data 1009 */ 1010 int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry, 1011 struct filter_v2 *data, struct filter_action_v2 *action_v2) 1012 { 1013 u64 a0 = 0, a1 = 0; 1014 int wait = 1000; 1015 dma_addr_t tlv_pa; 1016 int ret = -EINVAL; 1017 struct filter_tlv *tlv, *tlv_va; 1018 u64 tlv_size; 1019 u32 filter_size, action_size; 1020 static unsigned int unique_id; 1021 char z_name[RTE_MEMZONE_NAMESIZE]; 1022 enum vnic_devcmd_cmd dev_cmd; 1023 1024 if (cmd == CLSF_ADD) { 1025 dev_cmd = (data->type >= FILTER_DPDK_1) ? 1026 CMD_ADD_ADV_FILTER : CMD_ADD_FILTER; 1027 1028 filter_size = vnic_filter_size(data); 1029 action_size = vnic_action_size(action_v2); 1030 1031 tlv_size = filter_size + action_size + 1032 2*sizeof(struct filter_tlv); 1033 snprintf((char *)z_name, sizeof(z_name), 1034 "vnic_clsf_%u", unique_id++); 1035 tlv_va = vdev->alloc_consistent(vdev->priv, 1036 tlv_size, &tlv_pa, (u8 *)z_name); 1037 if (!tlv_va) 1038 return -ENOMEM; 1039 tlv = tlv_va; 1040 a0 = tlv_pa; 1041 a1 = tlv_size; 1042 memset(tlv, 0, tlv_size); 1043 tlv->type = CLSF_TLV_FILTER; 1044 tlv->length = filter_size; 1045 memcpy(&tlv->val, (void *)data, filter_size); 1046 1047 tlv = (struct filter_tlv *)((char *)tlv + 1048 sizeof(struct filter_tlv) + 1049 filter_size); 1050 1051 tlv->type = CLSF_TLV_ACTION; 1052 tlv->length = action_size; 1053 memcpy(&tlv->val, (void *)action_v2, action_size); 1054 ret = vnic_dev_cmd(vdev, dev_cmd, &a0, &a1, wait); 1055 *entry = (u16)a0; 1056 vdev->free_consistent(vdev->priv, tlv_size, tlv_va, tlv_pa); 1057 } else if (cmd == CLSF_DEL) { 1058 a0 = *entry; 1059 ret = vnic_dev_cmd(vdev, CMD_DEL_FILTER, &a0, &a1, wait); 1060 } 1061 1062 return ret; 1063 } 1064 1065 int vnic_dev_overlay_offload_ctrl(struct vnic_dev *vdev, u8 overlay, u8 config) 1066 { 1067 u64 a0 = overlay; 1068 u64 a1 = config; 1069 int wait = 1000; 1070 1071 return vnic_dev_cmd(vdev, CMD_OVERLAY_OFFLOAD_CTRL, &a0, &a1, wait); 1072 } 1073 1074 int vnic_dev_overlay_offload_cfg(struct vnic_dev *vdev, u8 overlay, 1075 u16 vxlan_udp_port_number) 1076 { 1077 u64 a1 = vxlan_udp_port_number; 1078 u64 a0 = overlay; 1079 int wait = 1000; 1080 1081 return vnic_dev_cmd(vdev, CMD_OVERLAY_OFFLOAD_CFG, &a0, &a1, wait); 1082 } 1083 1084 int vnic_dev_capable_vxlan(struct vnic_dev *vdev) 1085 { 1086 u64 a0 = VIC_FEATURE_VXLAN; 1087 u64 a1 = 0; 1088 int wait = 1000; 1089 int ret; 1090 1091 ret = vnic_dev_cmd(vdev, CMD_GET_SUPP_FEATURE_VER, &a0, &a1, wait); 1092 /* 1 if the NIC can do VXLAN for both IPv4 and IPv6 with multiple WQs */ 1093 return ret == 0 && 1094 (a1 & (FEATURE_VXLAN_IPV6 | FEATURE_VXLAN_MULTI_WQ)) == 1095 (FEATURE_VXLAN_IPV6 | FEATURE_VXLAN_MULTI_WQ); 1096 } 1097