1 /*- 2 * Copyright (c) 2016 Chelsio Communications, Inc. 3 * All rights reserved. 4 * Written by: John Baldwin <jhb@FreeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include "opt_inet.h" 32 #include "opt_inet6.h" 33 34 #include <sys/param.h> 35 #include <sys/bus.h> 36 #include <sys/conf.h> 37 #include <sys/kernel.h> 38 #include <sys/module.h> 39 #include <sys/priv.h> 40 #include <dev/pci/pcivar.h> 41 #if defined(__i386__) || defined(__amd64__) 42 #include <vm/vm.h> 43 #include <vm/pmap.h> 44 #endif 45 46 #include "common/common.h" 47 #include "common/t4_regs.h" 48 #include "t4_ioctl.h" 49 #include "t4_mp_ring.h" 50 51 /* 52 * Some notes: 53 * 54 * The Virtual Interfaces are connected to an internal switch on the chip 55 * which allows VIs attached to the same port to talk to each other even when 56 * the port link is down. As a result, we might want to always report a 57 * VF's link as being "up". 58 * 59 * XXX: Add a TUNABLE and possible per-device sysctl for this? 60 */ 61 62 struct intrs_and_queues { 63 uint16_t intr_type; /* MSI, or MSI-X */ 64 uint16_t nirq; /* Total # of vectors */ 65 uint16_t intr_flags_10g;/* Interrupt flags for each 10G port */ 66 uint16_t intr_flags_1g; /* Interrupt flags for each 1G port */ 67 uint16_t ntxq10g; /* # of NIC txq's for each 10G port */ 68 uint16_t nrxq10g; /* # of NIC rxq's for each 10G port */ 69 uint16_t ntxq1g; /* # of NIC txq's for each 1G port */ 70 uint16_t nrxq1g; /* # of NIC rxq's for each 1G port */ 71 }; 72 73 struct { 74 uint16_t device; 75 char *desc; 76 } t4vf_pciids[] = { 77 {0x4800, "Chelsio T440-dbg VF"}, 78 {0x4801, "Chelsio T420-CR VF"}, 79 {0x4802, "Chelsio T422-CR VF"}, 80 {0x4803, "Chelsio T440-CR VF"}, 81 {0x4804, "Chelsio T420-BCH VF"}, 82 {0x4805, "Chelsio T440-BCH VF"}, 83 {0x4806, "Chelsio T440-CH VF"}, 84 {0x4807, "Chelsio T420-SO VF"}, 85 {0x4808, "Chelsio T420-CX VF"}, 86 {0x4809, "Chelsio T420-BT VF"}, 87 {0x480a, "Chelsio T404-BT VF"}, 88 {0x480e, "Chelsio T440-LP-CR VF"}, 89 }, t5vf_pciids[] = { 90 {0x5800, "Chelsio T580-dbg VF"}, 91 {0x5801, "Chelsio T520-CR VF"}, /* 2 x 10G */ 92 {0x5802, "Chelsio T522-CR VF"}, /* 2 x 10G, 2 X 1G */ 93 {0x5803, "Chelsio T540-CR VF"}, /* 4 x 10G */ 94 {0x5807, "Chelsio T520-SO VF"}, /* 2 x 10G, nomem */ 95 {0x5809, "Chelsio T520-BT VF"}, /* 2 x 10GBaseT */ 96 {0x580a, "Chelsio T504-BT VF"}, /* 4 x 1G */ 97 {0x580d, "Chelsio T580-CR VF"}, /* 2 x 40G */ 98 {0x580e, "Chelsio T540-LP-CR VF"}, /* 4 x 10G */ 99 {0x5810, "Chelsio T580-LP-CR VF"}, /* 2 x 40G */ 100 {0x5811, "Chelsio T520-LL-CR VF"}, /* 2 x 10G */ 101 {0x5812, "Chelsio T560-CR VF"}, /* 1 x 40G, 2 x 10G */ 102 {0x5814, "Chelsio T580-LP-SO-CR VF"}, /* 2 x 40G, nomem */ 103 {0x5815, "Chelsio T502-BT VF"}, /* 2 x 1G */ 104 #ifdef notyet 105 {0x5804, "Chelsio T520-BCH VF"}, 106 {0x5805, "Chelsio T540-BCH VF"}, 107 {0x5806, "Chelsio T540-CH VF"}, 108 {0x5808, "Chelsio T520-CX VF"}, 109 {0x580b, "Chelsio B520-SR VF"}, 110 {0x580c, "Chelsio B504-BT VF"}, 111 {0x580f, "Chelsio Amsterdam VF"}, 112 {0x5813, "Chelsio T580-CHR VF"}, 113 #endif 114 }, t6vf_pciids[] = { 115 {0x6801, "Chelsio T6225-CR VF"}, /* 2 x 10/25G */ 116 {0x6802, "Chelsio T6225-SO-CR VF"}, /* 2 x 10/25G, nomem */ 117 {0x6807, "Chelsio T62100-LP-CR VF"}, /* 2 x 40/50/100G */ 118 {0x6808, "Chelsio T62100-SO-CR VF"}, /* 2 x 40/50/100G, nomem */ 119 {0x680d, "Chelsio T62100-CR VF"}, /* 2 x 40/50/100G */ 120 }; 121 122 static d_ioctl_t t4vf_ioctl; 123 124 static struct cdevsw t4vf_cdevsw = { 125 .d_version = D_VERSION, 126 .d_ioctl = t4vf_ioctl, 127 .d_name = "t4vf", 128 }; 129 130 static int 131 t4vf_probe(device_t dev) 132 { 133 uint16_t d; 134 size_t i; 135 136 d = pci_get_device(dev); 137 for (i = 0; i < nitems(t4vf_pciids); i++) { 138 if (d == t4vf_pciids[i].device) { 139 device_set_desc(dev, t4vf_pciids[i].desc); 140 return (BUS_PROBE_DEFAULT); 141 } 142 } 143 return (ENXIO); 144 } 145 146 static int 147 t5vf_probe(device_t dev) 148 { 149 uint16_t d; 150 size_t i; 151 152 d = pci_get_device(dev); 153 for (i = 0; i < nitems(t5vf_pciids); i++) { 154 if (d == t5vf_pciids[i].device) { 155 device_set_desc(dev, t5vf_pciids[i].desc); 156 return (BUS_PROBE_DEFAULT); 157 } 158 } 159 return (ENXIO); 160 } 161 162 static int 163 t6vf_probe(device_t dev) 164 { 165 uint16_t d; 166 size_t i; 167 168 d = pci_get_device(dev); 169 for (i = 0; i < nitems(t6vf_pciids); i++) { 170 if (d == t6vf_pciids[i].device) { 171 device_set_desc(dev, t6vf_pciids[i].desc); 172 return (BUS_PROBE_DEFAULT); 173 } 174 } 175 return (ENXIO); 176 } 177 178 #define FW_PARAM_DEV(param) \ 179 (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \ 180 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param)) 181 #define FW_PARAM_PFVF(param) \ 182 (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \ 183 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)) 184 185 static int 186 get_params__pre_init(struct adapter *sc) 187 { 188 int rc; 189 uint32_t param[3], val[3]; 190 191 param[0] = FW_PARAM_DEV(FWREV); 192 param[1] = FW_PARAM_DEV(TPREV); 193 param[2] = FW_PARAM_DEV(CCLK); 194 rc = -t4vf_query_params(sc, nitems(param), param, val); 195 if (rc != 0) { 196 device_printf(sc->dev, 197 "failed to query parameters (pre_init): %d.\n", rc); 198 return (rc); 199 } 200 201 sc->params.fw_vers = val[0]; 202 sc->params.tp_vers = val[1]; 203 sc->params.vpd.cclk = val[2]; 204 205 snprintf(sc->fw_version, sizeof(sc->fw_version), "%u.%u.%u.%u", 206 G_FW_HDR_FW_VER_MAJOR(sc->params.fw_vers), 207 G_FW_HDR_FW_VER_MINOR(sc->params.fw_vers), 208 G_FW_HDR_FW_VER_MICRO(sc->params.fw_vers), 209 G_FW_HDR_FW_VER_BUILD(sc->params.fw_vers)); 210 211 snprintf(sc->tp_version, sizeof(sc->tp_version), "%u.%u.%u.%u", 212 G_FW_HDR_FW_VER_MAJOR(sc->params.tp_vers), 213 G_FW_HDR_FW_VER_MINOR(sc->params.tp_vers), 214 G_FW_HDR_FW_VER_MICRO(sc->params.tp_vers), 215 G_FW_HDR_FW_VER_BUILD(sc->params.tp_vers)); 216 217 return (0); 218 } 219 220 static int 221 get_params__post_init(struct adapter *sc) 222 { 223 int rc; 224 225 rc = -t4vf_get_sge_params(sc); 226 if (rc != 0) { 227 device_printf(sc->dev, 228 "unable to retrieve adapter SGE parameters: %d\n", rc); 229 return (rc); 230 } 231 232 rc = -t4vf_get_rss_glb_config(sc); 233 if (rc != 0) { 234 device_printf(sc->dev, 235 "unable to retrieve adapter RSS parameters: %d\n", rc); 236 return (rc); 237 } 238 if (sc->params.rss.mode != FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL) { 239 device_printf(sc->dev, 240 "unable to operate with global RSS mode %d\n", 241 sc->params.rss.mode); 242 return (EINVAL); 243 } 244 245 rc = t4_read_chip_settings(sc); 246 if (rc != 0) 247 return (rc); 248 249 /* 250 * Grab our Virtual Interface resource allocation, extract the 251 * features that we're interested in and do a bit of sanity testing on 252 * what we discover. 253 */ 254 rc = -t4vf_get_vfres(sc); 255 if (rc != 0) { 256 device_printf(sc->dev, 257 "unable to get virtual interface resources: %d\n", rc); 258 return (rc); 259 } 260 261 /* 262 * Check for various parameter sanity issues. 263 */ 264 if (sc->params.vfres.pmask == 0) { 265 device_printf(sc->dev, "no port access configured/usable!\n"); 266 return (EINVAL); 267 } 268 if (sc->params.vfres.nvi == 0) { 269 device_printf(sc->dev, 270 "no virtual interfaces configured/usable!\n"); 271 return (EINVAL); 272 } 273 sc->params.portvec = sc->params.vfres.pmask; 274 275 return (0); 276 } 277 278 static int 279 set_params__post_init(struct adapter *sc) 280 { 281 uint32_t param, val; 282 283 /* ask for encapsulated CPLs */ 284 param = FW_PARAM_PFVF(CPLFW4MSG_ENCAP); 285 val = 1; 286 (void)t4vf_set_params(sc, 1, ¶m, &val); 287 288 return (0); 289 } 290 291 #undef FW_PARAM_PFVF 292 #undef FW_PARAM_DEV 293 294 static int 295 cfg_itype_and_nqueues(struct adapter *sc, int n10g, int n1g, 296 struct intrs_and_queues *iaq) 297 { 298 struct vf_resources *vfres; 299 int nrxq10g, nrxq1g, nrxq; 300 int ntxq10g, ntxq1g, ntxq; 301 int itype, iq_avail, navail, rc; 302 303 /* 304 * Figure out the layout of queues across our VIs and ensure 305 * we can allocate enough interrupts for our layout. 306 */ 307 vfres = &sc->params.vfres; 308 bzero(iaq, sizeof(*iaq)); 309 310 for (itype = INTR_MSIX; itype != 0; itype >>= 1) { 311 if (itype == INTR_INTX) 312 continue; 313 314 if (itype == INTR_MSIX) 315 navail = pci_msix_count(sc->dev); 316 else 317 navail = pci_msi_count(sc->dev); 318 319 if (navail == 0) 320 continue; 321 322 iaq->intr_type = itype; 323 iaq->intr_flags_10g = 0; 324 iaq->intr_flags_1g = 0; 325 326 /* 327 * XXX: The Linux driver reserves an Ingress Queue for 328 * forwarded interrupts when using MSI (but not MSI-X). 329 * It seems it just always asks for 2 interrupts and 330 * forwards all rxqs to the forwarded interrupt. 331 * 332 * We must reserve one IRQ for the for the firmware 333 * event queue. 334 * 335 * Every rxq requires an ingress queue with a free 336 * list and interrupts and an egress queue. Every txq 337 * requires an ETH egress queue. 338 */ 339 iaq->nirq = T4VF_EXTRA_INTR; 340 341 /* 342 * First, determine how many queues we can allocate. 343 * Start by finding the upper bound on rxqs from the 344 * limit on ingress queues. 345 */ 346 iq_avail = vfres->niqflint - iaq->nirq; 347 if (iq_avail < n10g + n1g) { 348 device_printf(sc->dev, 349 "Not enough ingress queues (%d) for %d ports\n", 350 vfres->niqflint, n10g + n1g); 351 return (ENXIO); 352 } 353 354 /* 355 * Try to honor the cap on interrupts. If there aren't 356 * enough interrupts for at least one interrupt per 357 * port, then don't bother, we will just forward all 358 * interrupts to one interrupt in that case. 359 */ 360 if (iaq->nirq + n10g + n1g <= navail) { 361 if (iq_avail > navail - iaq->nirq) 362 iq_avail = navail - iaq->nirq; 363 } 364 365 nrxq10g = t4_nrxq10g; 366 nrxq1g = t4_nrxq1g; 367 nrxq = n10g * nrxq10g + n1g * nrxq1g; 368 if (nrxq > iq_avail && nrxq1g > 1) { 369 /* Too many ingress queues. Try just 1 for 1G. */ 370 nrxq1g = 1; 371 nrxq = n10g * nrxq10g + n1g * nrxq1g; 372 } 373 if (nrxq > iq_avail) { 374 /* 375 * Still too many ingress queues. Use what we 376 * can for each 10G port. 377 */ 378 nrxq10g = (iq_avail - n1g) / n10g; 379 nrxq = n10g * nrxq10g + n1g * nrxq1g; 380 } 381 KASSERT(nrxq <= iq_avail, ("too many ingress queues")); 382 383 /* 384 * Next, determine the upper bound on txqs from the limit 385 * on ETH queues. 386 */ 387 if (vfres->nethctrl < n10g + n1g) { 388 device_printf(sc->dev, 389 "Not enough ETH queues (%d) for %d ports\n", 390 vfres->nethctrl, n10g + n1g); 391 return (ENXIO); 392 } 393 394 ntxq10g = t4_ntxq10g; 395 ntxq1g = t4_ntxq1g; 396 ntxq = n10g * ntxq10g + n1g * ntxq1g; 397 if (ntxq > vfres->nethctrl) { 398 /* Too many ETH queues. Try just 1 for 1G. */ 399 ntxq1g = 1; 400 ntxq = n10g * ntxq10g + n1g * ntxq1g; 401 } 402 if (ntxq > vfres->nethctrl) { 403 /* 404 * Still too many ETH queues. Use what we 405 * can for each 10G port. 406 */ 407 ntxq10g = (vfres->nethctrl - n1g) / n10g; 408 ntxq = n10g * ntxq10g + n1g * ntxq1g; 409 } 410 KASSERT(ntxq <= vfres->nethctrl, ("too many ETH queues")); 411 412 /* 413 * Finally, ensure we have enough egress queues. 414 */ 415 if (vfres->neq < (n10g + n1g) * 2) { 416 device_printf(sc->dev, 417 "Not enough egress queues (%d) for %d ports\n", 418 vfres->neq, n10g + n1g); 419 return (ENXIO); 420 } 421 if (nrxq + ntxq > vfres->neq) { 422 /* Just punt and use 1 for everything. */ 423 nrxq1g = ntxq1g = nrxq10g = ntxq10g = 1; 424 nrxq = n10g * nrxq10g + n1g * nrxq1g; 425 ntxq = n10g * ntxq10g + n1g * ntxq1g; 426 } 427 KASSERT(nrxq <= iq_avail, ("too many ingress queues")); 428 KASSERT(ntxq <= vfres->nethctrl, ("too many ETH queues")); 429 KASSERT(nrxq + ntxq <= vfres->neq, ("too many egress queues")); 430 431 /* 432 * Do we have enough interrupts? For MSI the interrupts 433 * have to be a power of 2 as well. 434 */ 435 iaq->nirq += nrxq; 436 iaq->ntxq10g = ntxq10g; 437 iaq->ntxq1g = ntxq1g; 438 iaq->nrxq10g = nrxq10g; 439 iaq->nrxq1g = nrxq1g; 440 if (iaq->nirq <= navail && 441 (itype != INTR_MSI || powerof2(iaq->nirq))) { 442 navail = iaq->nirq; 443 if (itype == INTR_MSIX) 444 rc = pci_alloc_msix(sc->dev, &navail); 445 else 446 rc = pci_alloc_msi(sc->dev, &navail); 447 if (rc != 0) { 448 device_printf(sc->dev, 449 "failed to allocate vectors:%d, type=%d, req=%d, rcvd=%d\n", 450 itype, rc, iaq->nirq, navail); 451 return (rc); 452 } 453 if (navail == iaq->nirq) { 454 iaq->intr_flags_10g = INTR_RXQ; 455 iaq->intr_flags_1g = INTR_RXQ; 456 return (0); 457 } 458 pci_release_msi(sc->dev); 459 } 460 461 /* Fall back to a single interrupt. */ 462 iaq->nirq = 1; 463 navail = iaq->nirq; 464 if (itype == INTR_MSIX) 465 rc = pci_alloc_msix(sc->dev, &navail); 466 else 467 rc = pci_alloc_msi(sc->dev, &navail); 468 if (rc != 0) 469 device_printf(sc->dev, 470 "failed to allocate vectors:%d, type=%d, req=%d, rcvd=%d\n", 471 itype, rc, iaq->nirq, navail); 472 iaq->intr_flags_10g = 0; 473 iaq->intr_flags_1g = 0; 474 return (rc); 475 } 476 477 device_printf(sc->dev, 478 "failed to find a usable interrupt type. " 479 "allowed=%d, msi-x=%d, msi=%d, intx=1", t4_intr_types, 480 pci_msix_count(sc->dev), pci_msi_count(sc->dev)); 481 482 return (ENXIO); 483 } 484 485 static int 486 t4vf_attach(device_t dev) 487 { 488 struct adapter *sc; 489 int rc = 0, i, j, n10g, n1g, rqidx, tqidx; 490 struct make_dev_args mda; 491 struct intrs_and_queues iaq; 492 struct sge *s; 493 494 sc = device_get_softc(dev); 495 sc->dev = dev; 496 pci_enable_busmaster(dev); 497 pci_set_max_read_req(dev, 4096); 498 sc->params.pci.mps = pci_get_max_payload(dev); 499 500 sc->flags |= IS_VF; 501 502 sc->sge_gts_reg = VF_SGE_REG(A_SGE_VF_GTS); 503 sc->sge_kdoorbell_reg = VF_SGE_REG(A_SGE_VF_KDOORBELL); 504 snprintf(sc->lockname, sizeof(sc->lockname), "%s", 505 device_get_nameunit(dev)); 506 mtx_init(&sc->sc_lock, sc->lockname, 0, MTX_DEF); 507 t4_add_adapter(sc); 508 509 mtx_init(&sc->sfl_lock, "starving freelists", 0, MTX_DEF); 510 TAILQ_INIT(&sc->sfl); 511 callout_init_mtx(&sc->sfl_callout, &sc->sfl_lock, 0); 512 513 mtx_init(&sc->reg_lock, "indirect register access", 0, MTX_DEF); 514 515 rc = t4_map_bars_0_and_4(sc); 516 if (rc != 0) 517 goto done; /* error message displayed already */ 518 519 rc = -t4vf_prep_adapter(sc); 520 if (rc != 0) 521 goto done; 522 523 t4_init_devnames(sc); 524 if (sc->names == NULL) { 525 rc = ENOTSUP; 526 goto done; /* error message displayed already */ 527 } 528 529 /* 530 * Leave the 'pf' and 'mbox' values as zero. This ensures 531 * that various firmware messages do not set the fields which 532 * is the correct thing to do for a VF. 533 */ 534 535 memset(sc->chan_map, 0xff, sizeof(sc->chan_map)); 536 537 make_dev_args_init(&mda); 538 mda.mda_devsw = &t4vf_cdevsw; 539 mda.mda_uid = UID_ROOT; 540 mda.mda_gid = GID_WHEEL; 541 mda.mda_mode = 0600; 542 mda.mda_si_drv1 = sc; 543 rc = make_dev_s(&mda, &sc->cdev, "%s", device_get_nameunit(dev)); 544 if (rc != 0) 545 device_printf(dev, "failed to create nexus char device: %d.\n", 546 rc); 547 548 #if defined(__i386__) 549 if ((cpu_feature & CPUID_CX8) == 0) { 550 device_printf(dev, "64 bit atomics not available.\n"); 551 rc = ENOTSUP; 552 goto done; 553 } 554 #endif 555 556 /* 557 * Some environments do not properly handle PCIE FLRs -- e.g. in Linux 558 * 2.6.31 and later we can't call pci_reset_function() in order to 559 * issue an FLR because of a self- deadlock on the device semaphore. 560 * Meanwhile, the OS infrastructure doesn't issue FLRs in all the 561 * cases where they're needed -- for instance, some versions of KVM 562 * fail to reset "Assigned Devices" when the VM reboots. Therefore we 563 * use the firmware based reset in order to reset any per function 564 * state. 565 */ 566 rc = -t4vf_fw_reset(sc); 567 if (rc != 0) { 568 device_printf(dev, "FW reset failed: %d\n", rc); 569 goto done; 570 } 571 sc->flags |= FW_OK; 572 573 /* 574 * Grab basic operational parameters. These will predominantly have 575 * been set up by the Physical Function Driver or will be hard coded 576 * into the adapter. We just have to live with them ... Note that 577 * we _must_ get our VPD parameters before our SGE parameters because 578 * we need to know the adapter's core clock from the VPD in order to 579 * properly decode the SGE Timer Values. 580 */ 581 rc = get_params__pre_init(sc); 582 if (rc != 0) 583 goto done; /* error message displayed already */ 584 rc = get_params__post_init(sc); 585 if (rc != 0) 586 goto done; /* error message displayed already */ 587 588 rc = set_params__post_init(sc); 589 if (rc != 0) 590 goto done; /* error message displayed already */ 591 592 rc = t4_map_bar_2(sc); 593 if (rc != 0) 594 goto done; /* error message displayed already */ 595 596 rc = t4_create_dma_tag(sc); 597 if (rc != 0) 598 goto done; /* error message displayed already */ 599 600 /* 601 * The number of "ports" which we support is equal to the number of 602 * Virtual Interfaces with which we've been provisioned. 603 */ 604 sc->params.nports = imin(sc->params.vfres.nvi, MAX_NPORTS); 605 606 /* 607 * We may have been provisioned with more VIs than the number of 608 * ports we're allowed to access (our Port Access Rights Mask). 609 * Just use a single VI for each port. 610 */ 611 sc->params.nports = imin(sc->params.nports, 612 bitcount32(sc->params.vfres.pmask)); 613 614 #ifdef notyet 615 /* 616 * XXX: The Linux VF driver will lower nports if it thinks there 617 * are too few resources in vfres (niqflint, nethctrl, neq). 618 */ 619 #endif 620 621 /* 622 * First pass over all the ports - allocate VIs and initialize some 623 * basic parameters like mac address, port type, etc. We also figure 624 * out whether a port is 10G or 1G and use that information when 625 * calculating how many interrupts to attempt to allocate. 626 */ 627 n10g = n1g = 0; 628 for_each_port(sc, i) { 629 struct port_info *pi; 630 631 pi = malloc(sizeof(*pi), M_CXGBE, M_ZERO | M_WAITOK); 632 sc->port[i] = pi; 633 634 /* These must be set before t4_port_init */ 635 pi->adapter = sc; 636 pi->port_id = i; 637 pi->nvi = 1; 638 pi->vi = malloc(sizeof(struct vi_info) * pi->nvi, M_CXGBE, 639 M_ZERO | M_WAITOK); 640 641 /* 642 * Allocate the "main" VI and initialize parameters 643 * like mac addr. 644 */ 645 rc = -t4_port_init(sc, sc->mbox, sc->pf, 0, i); 646 if (rc != 0) { 647 device_printf(dev, "unable to initialize port %d: %d\n", 648 i, rc); 649 free(pi->vi, M_CXGBE); 650 free(pi, M_CXGBE); 651 sc->port[i] = NULL; 652 goto done; 653 } 654 655 /* No t4_link_start. */ 656 657 snprintf(pi->lockname, sizeof(pi->lockname), "%sp%d", 658 device_get_nameunit(dev), i); 659 mtx_init(&pi->pi_lock, pi->lockname, 0, MTX_DEF); 660 sc->chan_map[pi->tx_chan] = i; 661 662 pi->tc = malloc(sizeof(struct tx_sched_class) * 663 sc->chip_params->nsched_cls, M_CXGBE, M_ZERO | M_WAITOK); 664 665 if (port_top_speed(pi) >= 10) { 666 n10g++; 667 } else { 668 n1g++; 669 } 670 671 pi->linkdnrc = -1; 672 673 pi->dev = device_add_child(dev, sc->names->vf_ifnet_name, -1); 674 if (pi->dev == NULL) { 675 device_printf(dev, 676 "failed to add device for port %d.\n", i); 677 rc = ENXIO; 678 goto done; 679 } 680 pi->vi[0].dev = pi->dev; 681 device_set_softc(pi->dev, pi); 682 } 683 684 /* 685 * Interrupt type, # of interrupts, # of rx/tx queues, etc. 686 */ 687 rc = cfg_itype_and_nqueues(sc, n10g, n1g, &iaq); 688 if (rc != 0) 689 goto done; /* error message displayed already */ 690 691 sc->intr_type = iaq.intr_type; 692 sc->intr_count = iaq.nirq; 693 694 s = &sc->sge; 695 s->nrxq = n10g * iaq.nrxq10g + n1g * iaq.nrxq1g; 696 s->ntxq = n10g * iaq.ntxq10g + n1g * iaq.ntxq1g; 697 s->neq = s->ntxq + s->nrxq; /* the free list in an rxq is an eq */ 698 s->neq += sc->params.nports + 1;/* ctrl queues: 1 per port + 1 mgmt */ 699 s->niq = s->nrxq + 1; /* 1 extra for firmware event queue */ 700 701 s->rxq = malloc(s->nrxq * sizeof(struct sge_rxq), M_CXGBE, 702 M_ZERO | M_WAITOK); 703 s->txq = malloc(s->ntxq * sizeof(struct sge_txq), M_CXGBE, 704 M_ZERO | M_WAITOK); 705 s->iqmap = malloc(s->niq * sizeof(struct sge_iq *), M_CXGBE, 706 M_ZERO | M_WAITOK); 707 s->eqmap = malloc(s->neq * sizeof(struct sge_eq *), M_CXGBE, 708 M_ZERO | M_WAITOK); 709 710 sc->irq = malloc(sc->intr_count * sizeof(struct irq), M_CXGBE, 711 M_ZERO | M_WAITOK); 712 713 /* 714 * Second pass over the ports. This time we know the number of rx and 715 * tx queues that each port should get. 716 */ 717 rqidx = tqidx = 0; 718 for_each_port(sc, i) { 719 struct port_info *pi = sc->port[i]; 720 struct vi_info *vi; 721 722 if (pi == NULL) 723 continue; 724 725 for_each_vi(pi, j, vi) { 726 vi->pi = pi; 727 vi->qsize_rxq = t4_qsize_rxq; 728 vi->qsize_txq = t4_qsize_txq; 729 730 vi->first_rxq = rqidx; 731 vi->first_txq = tqidx; 732 if (port_top_speed(pi) >= 10) { 733 vi->tmr_idx = t4_tmr_idx_10g; 734 vi->pktc_idx = t4_pktc_idx_10g; 735 vi->flags |= iaq.intr_flags_10g & INTR_RXQ; 736 vi->nrxq = j == 0 ? iaq.nrxq10g : 1; 737 vi->ntxq = j == 0 ? iaq.ntxq10g : 1; 738 } else { 739 vi->tmr_idx = t4_tmr_idx_1g; 740 vi->pktc_idx = t4_pktc_idx_1g; 741 vi->flags |= iaq.intr_flags_1g & INTR_RXQ; 742 vi->nrxq = j == 0 ? iaq.nrxq1g : 1; 743 vi->ntxq = j == 0 ? iaq.ntxq1g : 1; 744 } 745 rqidx += vi->nrxq; 746 tqidx += vi->ntxq; 747 748 vi->rsrv_noflowq = 0; 749 } 750 } 751 752 rc = t4_setup_intr_handlers(sc); 753 if (rc != 0) { 754 device_printf(dev, 755 "failed to setup interrupt handlers: %d\n", rc); 756 goto done; 757 } 758 759 rc = bus_generic_attach(dev); 760 if (rc != 0) { 761 device_printf(dev, 762 "failed to attach all child ports: %d\n", rc); 763 goto done; 764 } 765 766 device_printf(dev, 767 "%d ports, %d %s interrupt%s, %d eq, %d iq\n", 768 sc->params.nports, sc->intr_count, sc->intr_type == INTR_MSIX ? 769 "MSI-X" : "MSI", sc->intr_count > 1 ? "s" : "", sc->sge.neq, 770 sc->sge.niq); 771 772 done: 773 if (rc != 0) 774 t4_detach_common(dev); 775 else 776 t4_sysctls(sc); 777 778 return (rc); 779 } 780 781 static void 782 get_regs(struct adapter *sc, struct t4_regdump *regs, uint8_t *buf) 783 { 784 785 /* 0x3f is used as the revision for VFs. */ 786 regs->version = chip_id(sc) | (0x3f << 10); 787 t4_get_regs(sc, buf, regs->len); 788 } 789 790 static void 791 t4_clr_vi_stats(struct adapter *sc) 792 { 793 int reg; 794 795 for (reg = A_MPS_VF_STAT_TX_VF_BCAST_BYTES_L; 796 reg <= A_MPS_VF_STAT_RX_VF_ERR_FRAMES_H; reg += 4) 797 t4_write_reg(sc, VF_MPS_REG(reg), 0); 798 } 799 800 static int 801 t4vf_ioctl(struct cdev *dev, unsigned long cmd, caddr_t data, int fflag, 802 struct thread *td) 803 { 804 int rc; 805 struct adapter *sc = dev->si_drv1; 806 807 rc = priv_check(td, PRIV_DRIVER); 808 if (rc != 0) 809 return (rc); 810 811 switch (cmd) { 812 case CHELSIO_T4_GETREG: { 813 struct t4_reg *edata = (struct t4_reg *)data; 814 815 if ((edata->addr & 0x3) != 0 || edata->addr >= sc->mmio_len) 816 return (EFAULT); 817 818 if (edata->size == 4) 819 edata->val = t4_read_reg(sc, edata->addr); 820 else if (edata->size == 8) 821 edata->val = t4_read_reg64(sc, edata->addr); 822 else 823 return (EINVAL); 824 825 break; 826 } 827 case CHELSIO_T4_SETREG: { 828 struct t4_reg *edata = (struct t4_reg *)data; 829 830 if ((edata->addr & 0x3) != 0 || edata->addr >= sc->mmio_len) 831 return (EFAULT); 832 833 if (edata->size == 4) { 834 if (edata->val & 0xffffffff00000000) 835 return (EINVAL); 836 t4_write_reg(sc, edata->addr, (uint32_t) edata->val); 837 } else if (edata->size == 8) 838 t4_write_reg64(sc, edata->addr, edata->val); 839 else 840 return (EINVAL); 841 break; 842 } 843 case CHELSIO_T4_REGDUMP: { 844 struct t4_regdump *regs = (struct t4_regdump *)data; 845 int reglen = t4_get_regs_len(sc); 846 uint8_t *buf; 847 848 if (regs->len < reglen) { 849 regs->len = reglen; /* hint to the caller */ 850 return (ENOBUFS); 851 } 852 853 regs->len = reglen; 854 buf = malloc(reglen, M_CXGBE, M_WAITOK | M_ZERO); 855 get_regs(sc, regs, buf); 856 rc = copyout(buf, regs->data, reglen); 857 free(buf, M_CXGBE); 858 break; 859 } 860 case CHELSIO_T4_CLEAR_STATS: { 861 int i, v; 862 u_int port_id = *(uint32_t *)data; 863 struct port_info *pi; 864 struct vi_info *vi; 865 866 if (port_id >= sc->params.nports) 867 return (EINVAL); 868 pi = sc->port[port_id]; 869 870 /* MAC stats */ 871 pi->tx_parse_error = 0; 872 t4_clr_vi_stats(sc); 873 874 /* 875 * Since this command accepts a port, clear stats for 876 * all VIs on this port. 877 */ 878 for_each_vi(pi, v, vi) { 879 if (vi->flags & VI_INIT_DONE) { 880 struct sge_rxq *rxq; 881 struct sge_txq *txq; 882 883 for_each_rxq(vi, i, rxq) { 884 #if defined(INET) || defined(INET6) 885 rxq->lro.lro_queued = 0; 886 rxq->lro.lro_flushed = 0; 887 #endif 888 rxq->rxcsum = 0; 889 rxq->vlan_extraction = 0; 890 } 891 892 for_each_txq(vi, i, txq) { 893 txq->txcsum = 0; 894 txq->tso_wrs = 0; 895 txq->vlan_insertion = 0; 896 txq->imm_wrs = 0; 897 txq->sgl_wrs = 0; 898 txq->txpkt_wrs = 0; 899 txq->txpkts0_wrs = 0; 900 txq->txpkts1_wrs = 0; 901 txq->txpkts0_pkts = 0; 902 txq->txpkts1_pkts = 0; 903 mp_ring_reset_stats(txq->r); 904 } 905 } 906 } 907 break; 908 } 909 case CHELSIO_T4_SCHED_CLASS: 910 rc = t4_set_sched_class(sc, (struct t4_sched_params *)data); 911 break; 912 case CHELSIO_T4_SCHED_QUEUE: 913 rc = t4_set_sched_queue(sc, (struct t4_sched_queue *)data); 914 break; 915 default: 916 rc = ENOTTY; 917 } 918 919 return (rc); 920 } 921 922 static device_method_t t4vf_methods[] = { 923 DEVMETHOD(device_probe, t4vf_probe), 924 DEVMETHOD(device_attach, t4vf_attach), 925 DEVMETHOD(device_detach, t4_detach_common), 926 927 DEVMETHOD_END 928 }; 929 930 static driver_t t4vf_driver = { 931 "t4vf", 932 t4vf_methods, 933 sizeof(struct adapter) 934 }; 935 936 static device_method_t t5vf_methods[] = { 937 DEVMETHOD(device_probe, t5vf_probe), 938 DEVMETHOD(device_attach, t4vf_attach), 939 DEVMETHOD(device_detach, t4_detach_common), 940 941 DEVMETHOD_END 942 }; 943 944 static driver_t t5vf_driver = { 945 "t5vf", 946 t5vf_methods, 947 sizeof(struct adapter) 948 }; 949 950 static device_method_t t6vf_methods[] = { 951 DEVMETHOD(device_probe, t6vf_probe), 952 DEVMETHOD(device_attach, t4vf_attach), 953 DEVMETHOD(device_detach, t4_detach_common), 954 955 DEVMETHOD_END 956 }; 957 958 static driver_t t6vf_driver = { 959 "t6vf", 960 t6vf_methods, 961 sizeof(struct adapter) 962 }; 963 964 static driver_t cxgbev_driver = { 965 "cxgbev", 966 cxgbe_methods, 967 sizeof(struct port_info) 968 }; 969 970 static driver_t cxlv_driver = { 971 "cxlv", 972 cxgbe_methods, 973 sizeof(struct port_info) 974 }; 975 976 static driver_t ccv_driver = { 977 "ccv", 978 cxgbe_methods, 979 sizeof(struct port_info) 980 }; 981 982 static devclass_t t4vf_devclass, t5vf_devclass, t6vf_devclass; 983 static devclass_t cxgbev_devclass, cxlv_devclass, ccv_devclass; 984 985 DRIVER_MODULE(t4vf, pci, t4vf_driver, t4vf_devclass, 0, 0); 986 MODULE_VERSION(t4vf, 1); 987 MODULE_DEPEND(t4vf, t4nex, 1, 1, 1); 988 989 DRIVER_MODULE(t5vf, pci, t5vf_driver, t5vf_devclass, 0, 0); 990 MODULE_VERSION(t5vf, 1); 991 MODULE_DEPEND(t5vf, t5nex, 1, 1, 1); 992 993 DRIVER_MODULE(t6vf, pci, t6vf_driver, t6vf_devclass, 0, 0); 994 MODULE_VERSION(t6vf, 1); 995 MODULE_DEPEND(t6vf, t6nex, 1, 1, 1); 996 997 DRIVER_MODULE(cxgbev, t4vf, cxgbev_driver, cxgbev_devclass, 0, 0); 998 MODULE_VERSION(cxgbev, 1); 999 1000 DRIVER_MODULE(cxlv, t5vf, cxlv_driver, cxlv_devclass, 0, 0); 1001 MODULE_VERSION(cxlv, 1); 1002 1003 DRIVER_MODULE(ccv, t6vf, ccv_driver, ccv_devclass, 0, 0); 1004 MODULE_VERSION(ccv, 1); 1005