1 /****************************************************************************** 2 3 Copyright (c) 2001-2017, Intel Corporation 4 All rights reserved. 5 6 Redistribution and use in source and binary forms, with or without 7 modification, are permitted provided that the following conditions are met: 8 9 1. Redistributions of source code must retain the above copyright notice, 10 this list of conditions and the following disclaimer. 11 12 2. Redistributions in binary form must reproduce the above copyright 13 notice, this list of conditions and the following disclaimer in the 14 documentation and/or other materials provided with the distribution. 15 16 3. Neither the name of the Intel Corporation nor the names of its 17 contributors may be used to endorse or promote products derived from 18 this software without specific prior written permission. 19 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 POSSIBILITY OF SUCH DAMAGE. 31 32 ******************************************************************************/ 33 /*$FreeBSD$*/ 34 35 36 #include "opt_inet.h" 37 #include "opt_inet6.h" 38 #include "opt_rss.h" 39 40 #include "ixgbe.h" 41 #include "ifdi_if.h" 42 43 #include <net/netmap.h> 44 #include <dev/netmap/netmap_kern.h> 45 46 /************************************************************************ 47 * Driver version 48 ************************************************************************/ 49 char ixv_driver_version[] = "2.0.1-k"; 50 51 /************************************************************************ 52 * PCI Device ID Table 53 * 54 * Used by probe to select devices to load on 55 * Last field stores an index into ixv_strings 56 * Last entry must be all 0s 57 * 58 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index } 59 ************************************************************************/ 60 static pci_vendor_info_t ixv_vendor_info_array[] = 61 { 62 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"), 63 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X540_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"), 64 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"), 65 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_X_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"), 66 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_A_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"), 67 /* required last entry */ 68 PVID_END 69 }; 70 71 /************************************************************************ 72 * Function prototypes 73 ************************************************************************/ 74 static void *ixv_register(device_t dev); 75 static int ixv_if_attach_pre(if_ctx_t ctx); 76 static int ixv_if_attach_post(if_ctx_t ctx); 77 static int ixv_if_detach(if_ctx_t ctx); 78 79 static int ixv_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t qid); 80 static int ixv_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nqs, int nqsets); 81 static int ixv_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nqs, int nqsets); 82 static void ixv_if_queues_free(if_ctx_t ctx); 83 static void ixv_identify_hardware(if_ctx_t ctx); 84 static void ixv_init_device_features(struct adapter *); 85 static int ixv_allocate_pci_resources(if_ctx_t ctx); 86 static void ixv_free_pci_resources(if_ctx_t ctx); 87 static int ixv_setup_interface(if_ctx_t ctx); 88 static void ixv_if_media_status(if_ctx_t , struct ifmediareq *); 89 static int ixv_if_media_change(if_ctx_t ctx); 90 static void ixv_if_update_admin_status(if_ctx_t ctx); 91 static int ixv_if_msix_intr_assign(if_ctx_t ctx, int msix); 92 93 static int ixv_if_mtu_set(if_ctx_t ctx, uint32_t mtu); 94 static void ixv_if_init(if_ctx_t ctx); 95 static void ixv_if_local_timer(if_ctx_t ctx, uint16_t qid); 96 static void ixv_if_stop(if_ctx_t ctx); 97 static int ixv_negotiate_api(struct adapter *); 98 99 static void ixv_initialize_transmit_units(if_ctx_t ctx); 100 static void ixv_initialize_receive_units(if_ctx_t ctx); 101 static void ixv_initialize_rss_mapping(struct adapter *); 102 103 static void ixv_setup_vlan_support(if_ctx_t ctx); 104 static void ixv_configure_ivars(struct adapter *); 105 static void ixv_if_enable_intr(if_ctx_t ctx); 106 static void ixv_if_disable_intr(if_ctx_t ctx); 107 static void ixv_if_multi_set(if_ctx_t ctx); 108 109 static void ixv_if_register_vlan(if_ctx_t, u16); 110 static void ixv_if_unregister_vlan(if_ctx_t, u16); 111 112 static uint64_t ixv_if_get_counter(if_ctx_t, ift_counter); 113 114 static void ixv_save_stats(struct adapter *); 115 static void ixv_init_stats(struct adapter *); 116 static void ixv_update_stats(struct adapter *); 117 static void ixv_add_stats_sysctls(struct adapter *adapter); 118 119 static int ixv_sysctl_debug(SYSCTL_HANDLER_ARGS); 120 static void ixv_set_ivar(struct adapter *, u8, u8, s8); 121 122 static u8 *ixv_mc_array_itr(struct ixgbe_hw *, u8 **, u32 *); 123 124 /* The MSI-X Interrupt handlers */ 125 static int ixv_msix_que(void *); 126 static int ixv_msix_mbx(void *); 127 128 /************************************************************************ 129 * FreeBSD Device Interface Entry Points 130 ************************************************************************/ 131 static device_method_t ixv_methods[] = { 132 /* Device interface */ 133 DEVMETHOD(device_register, ixv_register), 134 DEVMETHOD(device_probe, iflib_device_probe), 135 DEVMETHOD(device_attach, iflib_device_attach), 136 DEVMETHOD(device_detach, iflib_device_detach), 137 DEVMETHOD(device_shutdown, iflib_device_shutdown), 138 DEVMETHOD_END 139 }; 140 141 static driver_t ixv_driver = { 142 "ixv", ixv_methods, sizeof(struct adapter), 143 }; 144 145 devclass_t ixv_devclass; 146 DRIVER_MODULE(ixv, pci, ixv_driver, ixv_devclass, 0, 0); 147 IFLIB_PNP_INFO(pci, ixv_driver, ixv_vendor_info_array); 148 MODULE_DEPEND(ixv, iflib, 1, 1, 1); 149 MODULE_DEPEND(ixv, pci, 1, 1, 1); 150 MODULE_DEPEND(ixv, ether, 1, 1, 1); 151 152 static device_method_t ixv_if_methods[] = { 153 DEVMETHOD(ifdi_attach_pre, ixv_if_attach_pre), 154 DEVMETHOD(ifdi_attach_post, ixv_if_attach_post), 155 DEVMETHOD(ifdi_detach, ixv_if_detach), 156 DEVMETHOD(ifdi_init, ixv_if_init), 157 DEVMETHOD(ifdi_stop, ixv_if_stop), 158 DEVMETHOD(ifdi_msix_intr_assign, ixv_if_msix_intr_assign), 159 DEVMETHOD(ifdi_intr_enable, ixv_if_enable_intr), 160 DEVMETHOD(ifdi_intr_disable, ixv_if_disable_intr), 161 DEVMETHOD(ifdi_tx_queue_intr_enable, ixv_if_rx_queue_intr_enable), 162 DEVMETHOD(ifdi_rx_queue_intr_enable, ixv_if_rx_queue_intr_enable), 163 DEVMETHOD(ifdi_tx_queues_alloc, ixv_if_tx_queues_alloc), 164 DEVMETHOD(ifdi_rx_queues_alloc, ixv_if_rx_queues_alloc), 165 DEVMETHOD(ifdi_queues_free, ixv_if_queues_free), 166 DEVMETHOD(ifdi_update_admin_status, ixv_if_update_admin_status), 167 DEVMETHOD(ifdi_multi_set, ixv_if_multi_set), 168 DEVMETHOD(ifdi_mtu_set, ixv_if_mtu_set), 169 DEVMETHOD(ifdi_media_status, ixv_if_media_status), 170 DEVMETHOD(ifdi_media_change, ixv_if_media_change), 171 DEVMETHOD(ifdi_timer, ixv_if_local_timer), 172 DEVMETHOD(ifdi_vlan_register, ixv_if_register_vlan), 173 DEVMETHOD(ifdi_vlan_unregister, ixv_if_unregister_vlan), 174 DEVMETHOD(ifdi_get_counter, ixv_if_get_counter), 175 DEVMETHOD_END 176 }; 177 178 static driver_t ixv_if_driver = { 179 "ixv_if", ixv_if_methods, sizeof(struct adapter) 180 }; 181 182 /* 183 * TUNEABLE PARAMETERS: 184 */ 185 186 /* Flow control setting, default to full */ 187 static int ixv_flow_control = ixgbe_fc_full; 188 TUNABLE_INT("hw.ixv.flow_control", &ixv_flow_control); 189 190 /* 191 * Header split: this causes the hardware to DMA 192 * the header into a separate mbuf from the payload, 193 * it can be a performance win in some workloads, but 194 * in others it actually hurts, its off by default. 195 */ 196 static int ixv_header_split = FALSE; 197 TUNABLE_INT("hw.ixv.hdr_split", &ixv_header_split); 198 199 /* 200 * Shadow VFTA table, this is needed because 201 * the real filter table gets cleared during 202 * a soft reset and we need to repopulate it. 203 */ 204 static u32 ixv_shadow_vfta[IXGBE_VFTA_SIZE]; 205 extern struct if_txrx ixgbe_txrx; 206 207 static struct if_shared_ctx ixv_sctx_init = { 208 .isc_magic = IFLIB_MAGIC, 209 .isc_q_align = PAGE_SIZE,/* max(DBA_ALIGN, PAGE_SIZE) */ 210 .isc_tx_maxsize = IXGBE_TSO_SIZE + sizeof(struct ether_vlan_header), 211 .isc_tx_maxsegsize = PAGE_SIZE, 212 .isc_tso_maxsize = IXGBE_TSO_SIZE + sizeof(struct ether_vlan_header), 213 .isc_tso_maxsegsize = PAGE_SIZE, 214 .isc_rx_maxsize = MJUM16BYTES, 215 .isc_rx_nsegments = 1, 216 .isc_rx_maxsegsize = MJUM16BYTES, 217 .isc_nfl = 1, 218 .isc_ntxqs = 1, 219 .isc_nrxqs = 1, 220 .isc_admin_intrcnt = 1, 221 .isc_vendor_info = ixv_vendor_info_array, 222 .isc_driver_version = ixv_driver_version, 223 .isc_driver = &ixv_if_driver, 224 .isc_flags = IFLIB_IS_VF | IFLIB_TSO_INIT_IP, 225 226 .isc_nrxd_min = {MIN_RXD}, 227 .isc_ntxd_min = {MIN_TXD}, 228 .isc_nrxd_max = {MAX_RXD}, 229 .isc_ntxd_max = {MAX_TXD}, 230 .isc_nrxd_default = {DEFAULT_RXD}, 231 .isc_ntxd_default = {DEFAULT_TXD}, 232 }; 233 234 if_shared_ctx_t ixv_sctx = &ixv_sctx_init; 235 236 static void * 237 ixv_register(device_t dev) 238 { 239 return (ixv_sctx); 240 } 241 242 /************************************************************************ 243 * ixv_if_tx_queues_alloc 244 ************************************************************************/ 245 static int 246 ixv_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, 247 int ntxqs, int ntxqsets) 248 { 249 struct adapter *adapter = iflib_get_softc(ctx); 250 if_softc_ctx_t scctx = adapter->shared; 251 struct ix_tx_queue *que; 252 int i, j, error; 253 254 MPASS(adapter->num_tx_queues == ntxqsets); 255 MPASS(ntxqs == 1); 256 257 /* Allocate queue structure memory */ 258 adapter->tx_queues = 259 (struct ix_tx_queue *)malloc(sizeof(struct ix_tx_queue) * ntxqsets, 260 M_DEVBUF, M_NOWAIT | M_ZERO); 261 if (!adapter->tx_queues) { 262 device_printf(iflib_get_dev(ctx), 263 "Unable to allocate TX ring memory\n"); 264 return (ENOMEM); 265 } 266 267 for (i = 0, que = adapter->tx_queues; i < ntxqsets; i++, que++) { 268 struct tx_ring *txr = &que->txr; 269 270 txr->me = i; 271 txr->adapter = que->adapter = adapter; 272 273 /* Allocate report status array */ 274 if (!(txr->tx_rsq = (qidx_t *)malloc(sizeof(qidx_t) * scctx->isc_ntxd[0], M_DEVBUF, M_NOWAIT | M_ZERO))) { 275 error = ENOMEM; 276 goto fail; 277 } 278 for (j = 0; j < scctx->isc_ntxd[0]; j++) 279 txr->tx_rsq[j] = QIDX_INVALID; 280 /* get the virtual and physical address of the hardware queues */ 281 txr->tail = IXGBE_VFTDT(txr->me); 282 txr->tx_base = (union ixgbe_adv_tx_desc *)vaddrs[i*ntxqs]; 283 txr->tx_paddr = paddrs[i*ntxqs]; 284 285 txr->bytes = 0; 286 txr->total_packets = 0; 287 288 } 289 290 device_printf(iflib_get_dev(ctx), "allocated for %d queues\n", 291 adapter->num_tx_queues); 292 293 return (0); 294 295 fail: 296 ixv_if_queues_free(ctx); 297 298 return (error); 299 } /* ixv_if_tx_queues_alloc */ 300 301 /************************************************************************ 302 * ixv_if_rx_queues_alloc 303 ************************************************************************/ 304 static int 305 ixv_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, 306 int nrxqs, int nrxqsets) 307 { 308 struct adapter *adapter = iflib_get_softc(ctx); 309 struct ix_rx_queue *que; 310 int i, error; 311 312 MPASS(adapter->num_rx_queues == nrxqsets); 313 MPASS(nrxqs == 1); 314 315 /* Allocate queue structure memory */ 316 adapter->rx_queues = 317 (struct ix_rx_queue *)malloc(sizeof(struct ix_rx_queue) * nrxqsets, 318 M_DEVBUF, M_NOWAIT | M_ZERO); 319 if (!adapter->rx_queues) { 320 device_printf(iflib_get_dev(ctx), 321 "Unable to allocate TX ring memory\n"); 322 error = ENOMEM; 323 goto fail; 324 } 325 326 for (i = 0, que = adapter->rx_queues; i < nrxqsets; i++, que++) { 327 struct rx_ring *rxr = &que->rxr; 328 rxr->me = i; 329 rxr->adapter = que->adapter = adapter; 330 331 332 /* get the virtual and physical address of the hw queues */ 333 rxr->tail = IXGBE_VFRDT(rxr->me); 334 rxr->rx_base = (union ixgbe_adv_rx_desc *)vaddrs[i]; 335 rxr->rx_paddr = paddrs[i*nrxqs]; 336 rxr->bytes = 0; 337 rxr->que = que; 338 } 339 340 device_printf(iflib_get_dev(ctx), "allocated for %d rx queues\n", 341 adapter->num_rx_queues); 342 343 return (0); 344 345 fail: 346 ixv_if_queues_free(ctx); 347 348 return (error); 349 } /* ixv_if_rx_queues_alloc */ 350 351 /************************************************************************ 352 * ixv_if_queues_free 353 ************************************************************************/ 354 static void 355 ixv_if_queues_free(if_ctx_t ctx) 356 { 357 struct adapter *adapter = iflib_get_softc(ctx); 358 struct ix_tx_queue *que = adapter->tx_queues; 359 int i; 360 361 if (que == NULL) 362 goto free; 363 364 for (i = 0; i < adapter->num_tx_queues; i++, que++) { 365 struct tx_ring *txr = &que->txr; 366 if (txr->tx_rsq == NULL) 367 break; 368 369 free(txr->tx_rsq, M_DEVBUF); 370 txr->tx_rsq = NULL; 371 } 372 if (adapter->tx_queues != NULL) 373 free(adapter->tx_queues, M_DEVBUF); 374 free: 375 if (adapter->rx_queues != NULL) 376 free(adapter->rx_queues, M_DEVBUF); 377 adapter->tx_queues = NULL; 378 adapter->rx_queues = NULL; 379 } /* ixv_if_queues_free */ 380 381 /************************************************************************ 382 * ixv_if_attach_pre - Device initialization routine 383 * 384 * Called when the driver is being loaded. 385 * Identifies the type of hardware, allocates all resources 386 * and initializes the hardware. 387 * 388 * return 0 on success, positive on failure 389 ************************************************************************/ 390 static int 391 ixv_if_attach_pre(if_ctx_t ctx) 392 { 393 struct adapter *adapter; 394 device_t dev; 395 if_softc_ctx_t scctx; 396 struct ixgbe_hw *hw; 397 int error = 0; 398 399 INIT_DEBUGOUT("ixv_attach: begin"); 400 401 /* Allocate, clear, and link in our adapter structure */ 402 dev = iflib_get_dev(ctx); 403 adapter = iflib_get_softc(ctx); 404 adapter->dev = dev; 405 adapter->ctx = ctx; 406 adapter->hw.back = adapter; 407 scctx = adapter->shared = iflib_get_softc_ctx(ctx); 408 adapter->media = iflib_get_media(ctx); 409 hw = &adapter->hw; 410 411 /* Do base PCI setup - map BAR0 */ 412 if (ixv_allocate_pci_resources(ctx)) { 413 device_printf(dev, "ixv_allocate_pci_resources() failed!\n"); 414 error = ENXIO; 415 goto err_out; 416 } 417 418 /* SYSCTL APIs */ 419 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 420 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "debug", 421 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 422 adapter, 0, ixv_sysctl_debug, "I", "Debug Info"); 423 424 /* Determine hardware revision */ 425 ixv_identify_hardware(ctx); 426 ixv_init_device_features(adapter); 427 428 /* Initialize the shared code */ 429 error = ixgbe_init_ops_vf(hw); 430 if (error) { 431 device_printf(dev, "ixgbe_init_ops_vf() failed!\n"); 432 error = EIO; 433 goto err_out; 434 } 435 436 /* Setup the mailbox */ 437 ixgbe_init_mbx_params_vf(hw); 438 439 error = hw->mac.ops.reset_hw(hw); 440 if (error == IXGBE_ERR_RESET_FAILED) 441 device_printf(dev, "...reset_hw() failure: Reset Failed!\n"); 442 else if (error) 443 device_printf(dev, "...reset_hw() failed with error %d\n", 444 error); 445 if (error) { 446 error = EIO; 447 goto err_out; 448 } 449 450 error = hw->mac.ops.init_hw(hw); 451 if (error) { 452 device_printf(dev, "...init_hw() failed with error %d\n", 453 error); 454 error = EIO; 455 goto err_out; 456 } 457 458 /* Negotiate mailbox API version */ 459 error = ixv_negotiate_api(adapter); 460 if (error) { 461 device_printf(dev, 462 "Mailbox API negotiation failed during attach!\n"); 463 goto err_out; 464 } 465 466 /* If no mac address was assigned, make a random one */ 467 if (!ixv_check_ether_addr(hw->mac.addr)) { 468 u8 addr[ETHER_ADDR_LEN]; 469 arc4rand(&addr, sizeof(addr), 0); 470 addr[0] &= 0xFE; 471 addr[0] |= 0x02; 472 bcopy(addr, hw->mac.addr, sizeof(addr)); 473 bcopy(addr, hw->mac.perm_addr, sizeof(addr)); 474 } 475 476 /* Most of the iflib initialization... */ 477 478 iflib_set_mac(ctx, hw->mac.addr); 479 switch (adapter->hw.mac.type) { 480 case ixgbe_mac_X550_vf: 481 case ixgbe_mac_X550EM_x_vf: 482 case ixgbe_mac_X550EM_a_vf: 483 scctx->isc_ntxqsets_max = scctx->isc_nrxqsets_max = 2; 484 break; 485 default: 486 scctx->isc_ntxqsets_max = scctx->isc_nrxqsets_max = 1; 487 } 488 scctx->isc_txqsizes[0] = 489 roundup2(scctx->isc_ntxd[0] * sizeof(union ixgbe_adv_tx_desc) + 490 sizeof(u32), DBA_ALIGN); 491 scctx->isc_rxqsizes[0] = 492 roundup2(scctx->isc_nrxd[0] * sizeof(union ixgbe_adv_rx_desc), 493 DBA_ALIGN); 494 /* XXX */ 495 scctx->isc_tx_csum_flags = CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_TSO | 496 CSUM_IP6_TCP | CSUM_IP6_UDP | CSUM_IP6_TSO; 497 scctx->isc_tx_nsegments = IXGBE_82599_SCATTER; 498 scctx->isc_msix_bar = pci_msix_table_bar(dev); 499 scctx->isc_tx_tso_segments_max = scctx->isc_tx_nsegments; 500 scctx->isc_tx_tso_size_max = IXGBE_TSO_SIZE; 501 scctx->isc_tx_tso_segsize_max = PAGE_SIZE; 502 503 scctx->isc_txrx = &ixgbe_txrx; 504 505 /* 506 * Tell the upper layer(s) we support everything the PF 507 * driver does except... 508 * Wake-on-LAN 509 */ 510 scctx->isc_capabilities = IXGBE_CAPS; 511 scctx->isc_capabilities ^= IFCAP_WOL; 512 scctx->isc_capenable = scctx->isc_capabilities; 513 514 INIT_DEBUGOUT("ixv_if_attach_pre: end"); 515 516 return (0); 517 518 err_out: 519 ixv_free_pci_resources(ctx); 520 521 return (error); 522 } /* ixv_if_attach_pre */ 523 524 static int 525 ixv_if_attach_post(if_ctx_t ctx) 526 { 527 struct adapter *adapter = iflib_get_softc(ctx); 528 device_t dev = iflib_get_dev(ctx); 529 int error = 0; 530 531 /* Setup OS specific network interface */ 532 error = ixv_setup_interface(ctx); 533 if (error) { 534 device_printf(dev, "Interface setup failed: %d\n", error); 535 goto end; 536 } 537 538 /* Do the stats setup */ 539 ixv_save_stats(adapter); 540 ixv_init_stats(adapter); 541 ixv_add_stats_sysctls(adapter); 542 543 end: 544 return error; 545 } /* ixv_if_attach_post */ 546 547 /************************************************************************ 548 * ixv_detach - Device removal routine 549 * 550 * Called when the driver is being removed. 551 * Stops the adapter and deallocates all the resources 552 * that were allocated for driver operation. 553 * 554 * return 0 on success, positive on failure 555 ************************************************************************/ 556 static int 557 ixv_if_detach(if_ctx_t ctx) 558 { 559 INIT_DEBUGOUT("ixv_detach: begin"); 560 561 ixv_free_pci_resources(ctx); 562 563 return (0); 564 } /* ixv_if_detach */ 565 566 /************************************************************************ 567 * ixv_if_mtu_set 568 ************************************************************************/ 569 static int 570 ixv_if_mtu_set(if_ctx_t ctx, uint32_t mtu) 571 { 572 struct adapter *adapter = iflib_get_softc(ctx); 573 struct ifnet *ifp = iflib_get_ifp(ctx); 574 int error = 0; 575 576 IOCTL_DEBUGOUT("ioctl: SIOCSIFMTU (Set Interface MTU)"); 577 if (mtu > IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR) { 578 error = EINVAL; 579 } else { 580 ifp->if_mtu = mtu; 581 adapter->max_frame_size = ifp->if_mtu + IXGBE_MTU_HDR; 582 } 583 584 return error; 585 } /* ixv_if_mtu_set */ 586 587 /************************************************************************ 588 * ixv_if_init - Init entry point 589 * 590 * Used in two ways: It is used by the stack as an init entry 591 * point in network interface structure. It is also used 592 * by the driver as a hw/sw initialization routine to get 593 * to a consistent state. 594 * 595 * return 0 on success, positive on failure 596 ************************************************************************/ 597 static void 598 ixv_if_init(if_ctx_t ctx) 599 { 600 struct adapter *adapter = iflib_get_softc(ctx); 601 struct ifnet *ifp = iflib_get_ifp(ctx); 602 device_t dev = iflib_get_dev(ctx); 603 struct ixgbe_hw *hw = &adapter->hw; 604 int error = 0; 605 606 INIT_DEBUGOUT("ixv_if_init: begin"); 607 hw->adapter_stopped = FALSE; 608 hw->mac.ops.stop_adapter(hw); 609 610 /* reprogram the RAR[0] in case user changed it. */ 611 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); 612 613 /* Get the latest mac address, User can use a LAA */ 614 bcopy(IF_LLADDR(ifp), hw->mac.addr, IXGBE_ETH_LENGTH_OF_ADDRESS); 615 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, 1); 616 617 /* Reset VF and renegotiate mailbox API version */ 618 hw->mac.ops.reset_hw(hw); 619 hw->mac.ops.start_hw(hw); 620 error = ixv_negotiate_api(adapter); 621 if (error) { 622 device_printf(dev, 623 "Mailbox API negotiation failed in if_init!\n"); 624 return; 625 } 626 627 ixv_initialize_transmit_units(ctx); 628 629 /* Setup Multicast table */ 630 ixv_if_multi_set(ctx); 631 632 adapter->rx_mbuf_sz = iflib_get_rx_mbuf_sz(ctx); 633 634 /* Configure RX settings */ 635 ixv_initialize_receive_units(ctx); 636 637 /* Set up VLAN offload and filter */ 638 ixv_setup_vlan_support(ctx); 639 640 /* Set up MSI-X routing */ 641 ixv_configure_ivars(adapter); 642 643 /* Set up auto-mask */ 644 IXGBE_WRITE_REG(hw, IXGBE_VTEIAM, IXGBE_EICS_RTX_QUEUE); 645 646 /* Set moderation on the Link interrupt */ 647 IXGBE_WRITE_REG(hw, IXGBE_VTEITR(adapter->vector), IXGBE_LINK_ITR); 648 649 /* Stats init */ 650 ixv_init_stats(adapter); 651 652 /* Config/Enable Link */ 653 hw->mac.ops.check_link(hw, &adapter->link_speed, &adapter->link_up, 654 FALSE); 655 656 /* And now turn on interrupts */ 657 ixv_if_enable_intr(ctx); 658 659 return; 660 } /* ixv_if_init */ 661 662 /************************************************************************ 663 * ixv_enable_queue 664 ************************************************************************/ 665 static inline void 666 ixv_enable_queue(struct adapter *adapter, u32 vector) 667 { 668 struct ixgbe_hw *hw = &adapter->hw; 669 u32 queue = 1 << vector; 670 u32 mask; 671 672 mask = (IXGBE_EIMS_RTX_QUEUE & queue); 673 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask); 674 } /* ixv_enable_queue */ 675 676 /************************************************************************ 677 * ixv_disable_queue 678 ************************************************************************/ 679 static inline void 680 ixv_disable_queue(struct adapter *adapter, u32 vector) 681 { 682 struct ixgbe_hw *hw = &adapter->hw; 683 u64 queue = (u64)(1 << vector); 684 u32 mask; 685 686 mask = (IXGBE_EIMS_RTX_QUEUE & queue); 687 IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, mask); 688 } /* ixv_disable_queue */ 689 690 691 /************************************************************************ 692 * ixv_msix_que - MSI-X Queue Interrupt Service routine 693 ************************************************************************/ 694 static int 695 ixv_msix_que(void *arg) 696 { 697 struct ix_rx_queue *que = arg; 698 struct adapter *adapter = que->adapter; 699 700 ixv_disable_queue(adapter, que->msix); 701 ++que->irqs; 702 703 return (FILTER_SCHEDULE_THREAD); 704 } /* ixv_msix_que */ 705 706 /************************************************************************ 707 * ixv_msix_mbx 708 ************************************************************************/ 709 static int 710 ixv_msix_mbx(void *arg) 711 { 712 struct adapter *adapter = arg; 713 struct ixgbe_hw *hw = &adapter->hw; 714 u32 reg; 715 716 ++adapter->link_irq; 717 718 /* First get the cause */ 719 reg = IXGBE_READ_REG(hw, IXGBE_VTEICS); 720 /* Clear interrupt with write */ 721 IXGBE_WRITE_REG(hw, IXGBE_VTEICR, reg); 722 723 /* Link status change */ 724 if (reg & IXGBE_EICR_LSC) 725 iflib_admin_intr_deferred(adapter->ctx); 726 727 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, IXGBE_EIMS_OTHER); 728 729 return (FILTER_HANDLED); 730 } /* ixv_msix_mbx */ 731 732 /************************************************************************ 733 * ixv_media_status - Media Ioctl callback 734 * 735 * Called whenever the user queries the status of 736 * the interface using ifconfig. 737 ************************************************************************/ 738 static void 739 ixv_if_media_status(if_ctx_t ctx, struct ifmediareq * ifmr) 740 { 741 struct adapter *adapter = iflib_get_softc(ctx); 742 743 INIT_DEBUGOUT("ixv_media_status: begin"); 744 745 iflib_admin_intr_deferred(ctx); 746 747 ifmr->ifm_status = IFM_AVALID; 748 ifmr->ifm_active = IFM_ETHER; 749 750 if (!adapter->link_active) 751 return; 752 753 ifmr->ifm_status |= IFM_ACTIVE; 754 755 switch (adapter->link_speed) { 756 case IXGBE_LINK_SPEED_1GB_FULL: 757 ifmr->ifm_active |= IFM_1000_T | IFM_FDX; 758 break; 759 case IXGBE_LINK_SPEED_10GB_FULL: 760 ifmr->ifm_active |= IFM_10G_T | IFM_FDX; 761 break; 762 case IXGBE_LINK_SPEED_100_FULL: 763 ifmr->ifm_active |= IFM_100_TX | IFM_FDX; 764 break; 765 case IXGBE_LINK_SPEED_10_FULL: 766 ifmr->ifm_active |= IFM_10_T | IFM_FDX; 767 break; 768 } 769 } /* ixv_if_media_status */ 770 771 /************************************************************************ 772 * ixv_if_media_change - Media Ioctl callback 773 * 774 * Called when the user changes speed/duplex using 775 * media/mediopt option with ifconfig. 776 ************************************************************************/ 777 static int 778 ixv_if_media_change(if_ctx_t ctx) 779 { 780 struct adapter *adapter = iflib_get_softc(ctx); 781 struct ifmedia *ifm = iflib_get_media(ctx); 782 783 INIT_DEBUGOUT("ixv_media_change: begin"); 784 785 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 786 return (EINVAL); 787 788 switch (IFM_SUBTYPE(ifm->ifm_media)) { 789 case IFM_AUTO: 790 break; 791 default: 792 device_printf(adapter->dev, "Only auto media type\n"); 793 return (EINVAL); 794 } 795 796 return (0); 797 } /* ixv_if_media_change */ 798 799 800 /************************************************************************ 801 * ixv_negotiate_api 802 * 803 * Negotiate the Mailbox API with the PF; 804 * start with the most featured API first. 805 ************************************************************************/ 806 static int 807 ixv_negotiate_api(struct adapter *adapter) 808 { 809 struct ixgbe_hw *hw = &adapter->hw; 810 int mbx_api[] = { ixgbe_mbox_api_11, 811 ixgbe_mbox_api_10, 812 ixgbe_mbox_api_unknown }; 813 int i = 0; 814 815 while (mbx_api[i] != ixgbe_mbox_api_unknown) { 816 if (ixgbevf_negotiate_api_version(hw, mbx_api[i]) == 0) 817 return (0); 818 i++; 819 } 820 821 return (EINVAL); 822 } /* ixv_negotiate_api */ 823 824 825 /************************************************************************ 826 * ixv_if_multi_set - Multicast Update 827 * 828 * Called whenever multicast address list is updated. 829 ************************************************************************/ 830 static void 831 ixv_if_multi_set(if_ctx_t ctx) 832 { 833 u8 mta[MAX_NUM_MULTICAST_ADDRESSES * IXGBE_ETH_LENGTH_OF_ADDRESS]; 834 struct adapter *adapter = iflib_get_softc(ctx); 835 u8 *update_ptr; 836 struct ifmultiaddr *ifma; 837 if_t ifp = iflib_get_ifp(ctx); 838 int mcnt = 0; 839 840 IOCTL_DEBUGOUT("ixv_if_multi_set: begin"); 841 842 CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 843 if (ifma->ifma_addr->sa_family != AF_LINK) 844 continue; 845 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 846 &mta[mcnt * IXGBE_ETH_LENGTH_OF_ADDRESS], 847 IXGBE_ETH_LENGTH_OF_ADDRESS); 848 mcnt++; 849 } 850 851 update_ptr = mta; 852 853 adapter->hw.mac.ops.update_mc_addr_list(&adapter->hw, update_ptr, mcnt, 854 ixv_mc_array_itr, TRUE); 855 } /* ixv_if_multi_set */ 856 857 /************************************************************************ 858 * ixv_mc_array_itr 859 * 860 * An iterator function needed by the multicast shared code. 861 * It feeds the shared code routine the addresses in the 862 * array of ixv_set_multi() one by one. 863 ************************************************************************/ 864 static u8 * 865 ixv_mc_array_itr(struct ixgbe_hw *hw, u8 **update_ptr, u32 *vmdq) 866 { 867 u8 *addr = *update_ptr; 868 u8 *newptr; 869 870 *vmdq = 0; 871 872 newptr = addr + IXGBE_ETH_LENGTH_OF_ADDRESS; 873 *update_ptr = newptr; 874 875 return addr; 876 } /* ixv_mc_array_itr */ 877 878 /************************************************************************ 879 * ixv_if_local_timer - Timer routine 880 * 881 * Checks for link status, updates statistics, 882 * and runs the watchdog check. 883 ************************************************************************/ 884 static void 885 ixv_if_local_timer(if_ctx_t ctx, uint16_t qid) 886 { 887 if (qid != 0) 888 return; 889 890 /* Fire off the adminq task */ 891 iflib_admin_intr_deferred(ctx); 892 } /* ixv_if_local_timer */ 893 894 /************************************************************************ 895 * ixv_if_update_admin_status - Update OS on link state 896 * 897 * Note: Only updates the OS on the cached link state. 898 * The real check of the hardware only happens with 899 * a link interrupt. 900 ************************************************************************/ 901 static void 902 ixv_if_update_admin_status(if_ctx_t ctx) 903 { 904 struct adapter *adapter = iflib_get_softc(ctx); 905 device_t dev = iflib_get_dev(ctx); 906 s32 status; 907 908 adapter->hw.mac.get_link_status = TRUE; 909 910 status = ixgbe_check_link(&adapter->hw, &adapter->link_speed, 911 &adapter->link_up, FALSE); 912 913 if (status != IXGBE_SUCCESS && adapter->hw.adapter_stopped == FALSE) { 914 /* Mailbox's Clear To Send status is lost or timeout occurred. 915 * We need reinitialization. */ 916 iflib_get_ifp(ctx)->if_init(ctx); 917 } 918 919 if (adapter->link_up) { 920 if (adapter->link_active == FALSE) { 921 if (bootverbose) 922 device_printf(dev, "Link is up %d Gbps %s \n", 923 ((adapter->link_speed == 128) ? 10 : 1), 924 "Full Duplex"); 925 adapter->link_active = TRUE; 926 iflib_link_state_change(ctx, LINK_STATE_UP, 927 IF_Gbps(10)); 928 } 929 } else { /* Link down */ 930 if (adapter->link_active == TRUE) { 931 if (bootverbose) 932 device_printf(dev, "Link is Down\n"); 933 iflib_link_state_change(ctx, LINK_STATE_DOWN, 0); 934 adapter->link_active = FALSE; 935 } 936 } 937 938 /* Stats Update */ 939 ixv_update_stats(adapter); 940 } /* ixv_if_update_admin_status */ 941 942 943 /************************************************************************ 944 * ixv_if_stop - Stop the hardware 945 * 946 * Disables all traffic on the adapter by issuing a 947 * global reset on the MAC and deallocates TX/RX buffers. 948 ************************************************************************/ 949 static void 950 ixv_if_stop(if_ctx_t ctx) 951 { 952 struct adapter *adapter = iflib_get_softc(ctx); 953 struct ixgbe_hw *hw = &adapter->hw; 954 955 INIT_DEBUGOUT("ixv_stop: begin\n"); 956 957 ixv_if_disable_intr(ctx); 958 959 hw->mac.ops.reset_hw(hw); 960 adapter->hw.adapter_stopped = FALSE; 961 hw->mac.ops.stop_adapter(hw); 962 963 /* Update the stack */ 964 adapter->link_up = FALSE; 965 ixv_if_update_admin_status(ctx); 966 967 /* reprogram the RAR[0] in case user changed it. */ 968 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); 969 } /* ixv_if_stop */ 970 971 972 /************************************************************************ 973 * ixv_identify_hardware - Determine hardware revision. 974 ************************************************************************/ 975 static void 976 ixv_identify_hardware(if_ctx_t ctx) 977 { 978 struct adapter *adapter = iflib_get_softc(ctx); 979 device_t dev = iflib_get_dev(ctx); 980 struct ixgbe_hw *hw = &adapter->hw; 981 982 /* Save off the information about this board */ 983 hw->vendor_id = pci_get_vendor(dev); 984 hw->device_id = pci_get_device(dev); 985 hw->revision_id = pci_get_revid(dev); 986 hw->subsystem_vendor_id = pci_get_subvendor(dev); 987 hw->subsystem_device_id = pci_get_subdevice(dev); 988 989 /* A subset of set_mac_type */ 990 switch (hw->device_id) { 991 case IXGBE_DEV_ID_82599_VF: 992 hw->mac.type = ixgbe_mac_82599_vf; 993 break; 994 case IXGBE_DEV_ID_X540_VF: 995 hw->mac.type = ixgbe_mac_X540_vf; 996 break; 997 case IXGBE_DEV_ID_X550_VF: 998 hw->mac.type = ixgbe_mac_X550_vf; 999 break; 1000 case IXGBE_DEV_ID_X550EM_X_VF: 1001 hw->mac.type = ixgbe_mac_X550EM_x_vf; 1002 break; 1003 case IXGBE_DEV_ID_X550EM_A_VF: 1004 hw->mac.type = ixgbe_mac_X550EM_a_vf; 1005 break; 1006 default: 1007 device_printf(dev, "unknown mac type\n"); 1008 hw->mac.type = ixgbe_mac_unknown; 1009 break; 1010 } 1011 } /* ixv_identify_hardware */ 1012 1013 /************************************************************************ 1014 * ixv_if_msix_intr_assign - Setup MSI-X Interrupt resources and handlers 1015 ************************************************************************/ 1016 static int 1017 ixv_if_msix_intr_assign(if_ctx_t ctx, int msix) 1018 { 1019 struct adapter *adapter = iflib_get_softc(ctx); 1020 device_t dev = iflib_get_dev(ctx); 1021 struct ix_rx_queue *rx_que = adapter->rx_queues; 1022 struct ix_tx_queue *tx_que; 1023 int error, rid, vector = 0; 1024 char buf[16]; 1025 1026 for (int i = 0; i < adapter->num_rx_queues; i++, vector++, rx_que++) { 1027 rid = vector + 1; 1028 1029 snprintf(buf, sizeof(buf), "rxq%d", i); 1030 error = iflib_irq_alloc_generic(ctx, &rx_que->que_irq, rid, 1031 IFLIB_INTR_RX, ixv_msix_que, rx_que, rx_que->rxr.me, buf); 1032 1033 if (error) { 1034 device_printf(iflib_get_dev(ctx), 1035 "Failed to allocate que int %d err: %d", i, error); 1036 adapter->num_rx_queues = i + 1; 1037 goto fail; 1038 } 1039 1040 rx_que->msix = vector; 1041 } 1042 1043 for (int i = 0; i < adapter->num_tx_queues; i++) { 1044 snprintf(buf, sizeof(buf), "txq%d", i); 1045 tx_que = &adapter->tx_queues[i]; 1046 tx_que->msix = i % adapter->num_rx_queues; 1047 iflib_softirq_alloc_generic(ctx, 1048 &adapter->rx_queues[tx_que->msix].que_irq, 1049 IFLIB_INTR_TX, tx_que, tx_que->txr.me, buf); 1050 } 1051 rid = vector + 1; 1052 error = iflib_irq_alloc_generic(ctx, &adapter->irq, rid, 1053 IFLIB_INTR_ADMIN, ixv_msix_mbx, adapter, 0, "aq"); 1054 if (error) { 1055 device_printf(iflib_get_dev(ctx), 1056 "Failed to register admin handler"); 1057 return (error); 1058 } 1059 1060 adapter->vector = vector; 1061 /* 1062 * Due to a broken design QEMU will fail to properly 1063 * enable the guest for MSIX unless the vectors in 1064 * the table are all set up, so we must rewrite the 1065 * ENABLE in the MSIX control register again at this 1066 * point to cause it to successfully initialize us. 1067 */ 1068 if (adapter->hw.mac.type == ixgbe_mac_82599_vf) { 1069 int msix_ctrl; 1070 pci_find_cap(dev, PCIY_MSIX, &rid); 1071 rid += PCIR_MSIX_CTRL; 1072 msix_ctrl = pci_read_config(dev, rid, 2); 1073 msix_ctrl |= PCIM_MSIXCTRL_MSIX_ENABLE; 1074 pci_write_config(dev, rid, msix_ctrl, 2); 1075 } 1076 1077 return (0); 1078 1079 fail: 1080 iflib_irq_free(ctx, &adapter->irq); 1081 rx_que = adapter->rx_queues; 1082 for (int i = 0; i < adapter->num_rx_queues; i++, rx_que++) 1083 iflib_irq_free(ctx, &rx_que->que_irq); 1084 1085 return (error); 1086 } /* ixv_if_msix_intr_assign */ 1087 1088 /************************************************************************ 1089 * ixv_allocate_pci_resources 1090 ************************************************************************/ 1091 static int 1092 ixv_allocate_pci_resources(if_ctx_t ctx) 1093 { 1094 struct adapter *adapter = iflib_get_softc(ctx); 1095 device_t dev = iflib_get_dev(ctx); 1096 int rid; 1097 1098 rid = PCIR_BAR(0); 1099 adapter->pci_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 1100 RF_ACTIVE); 1101 1102 if (!(adapter->pci_mem)) { 1103 device_printf(dev, "Unable to allocate bus resource: memory\n"); 1104 return (ENXIO); 1105 } 1106 1107 adapter->osdep.mem_bus_space_tag = rman_get_bustag(adapter->pci_mem); 1108 adapter->osdep.mem_bus_space_handle = 1109 rman_get_bushandle(adapter->pci_mem); 1110 adapter->hw.hw_addr = (u8 *)&adapter->osdep.mem_bus_space_handle; 1111 1112 return (0); 1113 } /* ixv_allocate_pci_resources */ 1114 1115 /************************************************************************ 1116 * ixv_free_pci_resources 1117 ************************************************************************/ 1118 static void 1119 ixv_free_pci_resources(if_ctx_t ctx) 1120 { 1121 struct adapter *adapter = iflib_get_softc(ctx); 1122 struct ix_rx_queue *que = adapter->rx_queues; 1123 device_t dev = iflib_get_dev(ctx); 1124 1125 /* Release all MSI-X queue resources */ 1126 if (adapter->intr_type == IFLIB_INTR_MSIX) 1127 iflib_irq_free(ctx, &adapter->irq); 1128 1129 if (que != NULL) { 1130 for (int i = 0; i < adapter->num_rx_queues; i++, que++) { 1131 iflib_irq_free(ctx, &que->que_irq); 1132 } 1133 } 1134 1135 if (adapter->pci_mem != NULL) 1136 bus_release_resource(dev, SYS_RES_MEMORY, 1137 rman_get_rid(adapter->pci_mem), adapter->pci_mem); 1138 } /* ixv_free_pci_resources */ 1139 1140 /************************************************************************ 1141 * ixv_setup_interface 1142 * 1143 * Setup networking device structure and register an interface. 1144 ************************************************************************/ 1145 static int 1146 ixv_setup_interface(if_ctx_t ctx) 1147 { 1148 struct adapter *adapter = iflib_get_softc(ctx); 1149 if_softc_ctx_t scctx = adapter->shared; 1150 struct ifnet *ifp = iflib_get_ifp(ctx); 1151 1152 INIT_DEBUGOUT("ixv_setup_interface: begin"); 1153 1154 if_setbaudrate(ifp, IF_Gbps(10)); 1155 ifp->if_snd.ifq_maxlen = scctx->isc_ntxd[0] - 2; 1156 1157 1158 adapter->max_frame_size = ifp->if_mtu + IXGBE_MTU_HDR; 1159 ifmedia_add(adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL); 1160 ifmedia_set(adapter->media, IFM_ETHER | IFM_AUTO); 1161 1162 return 0; 1163 } /* ixv_setup_interface */ 1164 1165 /************************************************************************ 1166 * ixv_if_get_counter 1167 ************************************************************************/ 1168 static uint64_t 1169 ixv_if_get_counter(if_ctx_t ctx, ift_counter cnt) 1170 { 1171 struct adapter *adapter = iflib_get_softc(ctx); 1172 if_t ifp = iflib_get_ifp(ctx); 1173 1174 switch (cnt) { 1175 case IFCOUNTER_IPACKETS: 1176 return (adapter->ipackets); 1177 case IFCOUNTER_OPACKETS: 1178 return (adapter->opackets); 1179 case IFCOUNTER_IBYTES: 1180 return (adapter->ibytes); 1181 case IFCOUNTER_OBYTES: 1182 return (adapter->obytes); 1183 case IFCOUNTER_IMCASTS: 1184 return (adapter->imcasts); 1185 default: 1186 return (if_get_counter_default(ifp, cnt)); 1187 } 1188 } /* ixv_if_get_counter */ 1189 1190 /************************************************************************ 1191 * ixv_initialize_transmit_units - Enable transmit unit. 1192 ************************************************************************/ 1193 static void 1194 ixv_initialize_transmit_units(if_ctx_t ctx) 1195 { 1196 struct adapter *adapter = iflib_get_softc(ctx); 1197 struct ixgbe_hw *hw = &adapter->hw; 1198 if_softc_ctx_t scctx = adapter->shared; 1199 struct ix_tx_queue *que = adapter->tx_queues; 1200 int i; 1201 1202 for (i = 0; i < adapter->num_tx_queues; i++, que++) { 1203 struct tx_ring *txr = &que->txr; 1204 u64 tdba = txr->tx_paddr; 1205 u32 txctrl, txdctl; 1206 int j = txr->me; 1207 1208 /* Set WTHRESH to 8, burst writeback */ 1209 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(j)); 1210 txdctl |= (8 << 16); 1211 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(j), txdctl); 1212 1213 /* Set the HW Tx Head and Tail indices */ 1214 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDH(j), 0); 1215 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDT(j), 0); 1216 1217 /* Set Tx Tail register */ 1218 txr->tail = IXGBE_VFTDT(j); 1219 1220 txr->tx_rs_cidx = txr->tx_rs_pidx; 1221 /* Initialize the last processed descriptor to be the end of 1222 * the ring, rather than the start, so that we avoid an 1223 * off-by-one error when calculating how many descriptors are 1224 * done in the credits_update function. 1225 */ 1226 txr->tx_cidx_processed = scctx->isc_ntxd[0] - 1; 1227 for (int k = 0; k < scctx->isc_ntxd[0]; k++) 1228 txr->tx_rsq[k] = QIDX_INVALID; 1229 1230 /* Set Ring parameters */ 1231 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(j), 1232 (tdba & 0x00000000ffffffffULL)); 1233 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAH(j), (tdba >> 32)); 1234 IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(j), 1235 scctx->isc_ntxd[0] * sizeof(struct ixgbe_legacy_tx_desc)); 1236 txctrl = IXGBE_READ_REG(hw, IXGBE_VFDCA_TXCTRL(j)); 1237 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN; 1238 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(j), txctrl); 1239 1240 /* Now enable */ 1241 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(j)); 1242 txdctl |= IXGBE_TXDCTL_ENABLE; 1243 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(j), txdctl); 1244 } 1245 1246 return; 1247 } /* ixv_initialize_transmit_units */ 1248 1249 /************************************************************************ 1250 * ixv_initialize_rss_mapping 1251 ************************************************************************/ 1252 static void 1253 ixv_initialize_rss_mapping(struct adapter *adapter) 1254 { 1255 struct ixgbe_hw *hw = &adapter->hw; 1256 u32 reta = 0, mrqc, rss_key[10]; 1257 int queue_id; 1258 int i, j; 1259 u32 rss_hash_config; 1260 1261 if (adapter->feat_en & IXGBE_FEATURE_RSS) { 1262 /* Fetch the configured RSS key */ 1263 rss_getkey((uint8_t *)&rss_key); 1264 } else { 1265 /* set up random bits */ 1266 arc4rand(&rss_key, sizeof(rss_key), 0); 1267 } 1268 1269 /* Now fill out hash function seeds */ 1270 for (i = 0; i < 10; i++) 1271 IXGBE_WRITE_REG(hw, IXGBE_VFRSSRK(i), rss_key[i]); 1272 1273 /* Set up the redirection table */ 1274 for (i = 0, j = 0; i < 64; i++, j++) { 1275 if (j == adapter->num_rx_queues) 1276 j = 0; 1277 1278 if (adapter->feat_en & IXGBE_FEATURE_RSS) { 1279 /* 1280 * Fetch the RSS bucket id for the given indirection 1281 * entry. Cap it at the number of configured buckets 1282 * (which is num_rx_queues.) 1283 */ 1284 queue_id = rss_get_indirection_to_bucket(i); 1285 queue_id = queue_id % adapter->num_rx_queues; 1286 } else 1287 queue_id = j; 1288 1289 /* 1290 * The low 8 bits are for hash value (n+0); 1291 * The next 8 bits are for hash value (n+1), etc. 1292 */ 1293 reta >>= 8; 1294 reta |= ((uint32_t)queue_id) << 24; 1295 if ((i & 3) == 3) { 1296 IXGBE_WRITE_REG(hw, IXGBE_VFRETA(i >> 2), reta); 1297 reta = 0; 1298 } 1299 } 1300 1301 /* Perform hash on these packet types */ 1302 if (adapter->feat_en & IXGBE_FEATURE_RSS) 1303 rss_hash_config = rss_gethashconfig(); 1304 else { 1305 /* 1306 * Disable UDP - IP fragments aren't currently being handled 1307 * and so we end up with a mix of 2-tuple and 4-tuple 1308 * traffic. 1309 */ 1310 rss_hash_config = RSS_HASHTYPE_RSS_IPV4 1311 | RSS_HASHTYPE_RSS_TCP_IPV4 1312 | RSS_HASHTYPE_RSS_IPV6 1313 | RSS_HASHTYPE_RSS_TCP_IPV6; 1314 } 1315 1316 mrqc = IXGBE_MRQC_RSSEN; 1317 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4) 1318 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4; 1319 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4) 1320 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_TCP; 1321 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6) 1322 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6; 1323 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6) 1324 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_TCP; 1325 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX) 1326 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_IPV6_EX defined, but not supported\n", 1327 __func__); 1328 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6_EX) 1329 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_TCP_IPV6_EX defined, but not supported\n", 1330 __func__); 1331 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV4) 1332 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; 1333 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6) 1334 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; 1335 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6_EX) 1336 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_UDP_IPV6_EX defined, but not supported\n", 1337 __func__); 1338 IXGBE_WRITE_REG(hw, IXGBE_VFMRQC, mrqc); 1339 } /* ixv_initialize_rss_mapping */ 1340 1341 1342 /************************************************************************ 1343 * ixv_initialize_receive_units - Setup receive registers and features. 1344 ************************************************************************/ 1345 static void 1346 ixv_initialize_receive_units(if_ctx_t ctx) 1347 { 1348 struct adapter *adapter = iflib_get_softc(ctx); 1349 if_softc_ctx_t scctx; 1350 struct ixgbe_hw *hw = &adapter->hw; 1351 struct ifnet *ifp = iflib_get_ifp(ctx); 1352 struct ix_rx_queue *que = adapter->rx_queues; 1353 u32 bufsz, psrtype; 1354 1355 if (ifp->if_mtu > ETHERMTU) 1356 bufsz = 4096 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; 1357 else 1358 bufsz = 2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; 1359 1360 psrtype = IXGBE_PSRTYPE_TCPHDR 1361 | IXGBE_PSRTYPE_UDPHDR 1362 | IXGBE_PSRTYPE_IPV4HDR 1363 | IXGBE_PSRTYPE_IPV6HDR 1364 | IXGBE_PSRTYPE_L2HDR; 1365 1366 if (adapter->num_rx_queues > 1) 1367 psrtype |= 1 << 29; 1368 1369 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype); 1370 1371 /* Tell PF our max_frame size */ 1372 if (ixgbevf_rlpml_set_vf(hw, adapter->max_frame_size) != 0) { 1373 device_printf(adapter->dev, "There is a problem with the PF setup. It is likely the receive unit for this VF will not function correctly.\n"); 1374 } 1375 scctx = adapter->shared; 1376 1377 for (int i = 0; i < adapter->num_rx_queues; i++, que++) { 1378 struct rx_ring *rxr = &que->rxr; 1379 u64 rdba = rxr->rx_paddr; 1380 u32 reg, rxdctl; 1381 int j = rxr->me; 1382 1383 /* Disable the queue */ 1384 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)); 1385 rxdctl &= ~IXGBE_RXDCTL_ENABLE; 1386 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(j), rxdctl); 1387 for (int k = 0; k < 10; k++) { 1388 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) & 1389 IXGBE_RXDCTL_ENABLE) 1390 msec_delay(1); 1391 else 1392 break; 1393 } 1394 wmb(); 1395 /* Setup the Base and Length of the Rx Descriptor Ring */ 1396 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(j), 1397 (rdba & 0x00000000ffffffffULL)); 1398 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(j), (rdba >> 32)); 1399 IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(j), 1400 scctx->isc_nrxd[0] * sizeof(union ixgbe_adv_rx_desc)); 1401 1402 /* Reset the ring indices */ 1403 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(rxr->me), 0); 1404 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 0); 1405 1406 /* Set up the SRRCTL register */ 1407 reg = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(j)); 1408 reg &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; 1409 reg &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; 1410 reg |= bufsz; 1411 reg |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; 1412 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(j), reg); 1413 1414 /* Capture Rx Tail index */ 1415 rxr->tail = IXGBE_VFRDT(rxr->me); 1416 1417 /* Do the queue enabling last */ 1418 rxdctl |= IXGBE_RXDCTL_ENABLE | IXGBE_RXDCTL_VME; 1419 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(j), rxdctl); 1420 for (int l = 0; l < 10; l++) { 1421 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) & 1422 IXGBE_RXDCTL_ENABLE) 1423 break; 1424 msec_delay(1); 1425 } 1426 wmb(); 1427 1428 /* Set the Tail Pointer */ 1429 #ifdef DEV_NETMAP 1430 /* 1431 * In netmap mode, we must preserve the buffers made 1432 * available to userspace before the if_init() 1433 * (this is true by default on the TX side, because 1434 * init makes all buffers available to userspace). 1435 * 1436 * netmap_reset() and the device specific routines 1437 * (e.g. ixgbe_setup_receive_rings()) map these 1438 * buffers at the end of the NIC ring, so here we 1439 * must set the RDT (tail) register to make sure 1440 * they are not overwritten. 1441 * 1442 * In this driver the NIC ring starts at RDH = 0, 1443 * RDT points to the last slot available for reception (?), 1444 * so RDT = num_rx_desc - 1 means the whole ring is available. 1445 */ 1446 if (ifp->if_capenable & IFCAP_NETMAP) { 1447 struct netmap_adapter *na = NA(ifp); 1448 struct netmap_kring *kring = na->rx_rings[j]; 1449 int t = na->num_rx_desc - 1 - nm_kr_rxspace(kring); 1450 1451 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), t); 1452 } else 1453 #endif /* DEV_NETMAP */ 1454 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 1455 scctx->isc_nrxd[0] - 1); 1456 } 1457 1458 /* 1459 * Do not touch RSS and RETA settings for older hardware 1460 * as those are shared among PF and all VF. 1461 */ 1462 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf) 1463 ixv_initialize_rss_mapping(adapter); 1464 } /* ixv_initialize_receive_units */ 1465 1466 /************************************************************************ 1467 * ixv_setup_vlan_support 1468 ************************************************************************/ 1469 static void 1470 ixv_setup_vlan_support(if_ctx_t ctx) 1471 { 1472 struct ifnet *ifp = iflib_get_ifp(ctx); 1473 struct adapter *adapter = iflib_get_softc(ctx); 1474 struct ixgbe_hw *hw = &adapter->hw; 1475 u32 ctrl, vid, vfta, retry; 1476 1477 /* 1478 * We get here thru if_init, meaning 1479 * a soft reset, this has already cleared 1480 * the VFTA and other state, so if there 1481 * have been no vlan's registered do nothing. 1482 */ 1483 if (adapter->num_vlans == 0) 1484 return; 1485 1486 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) { 1487 /* Enable the queues */ 1488 for (int i = 0; i < adapter->num_rx_queues; i++) { 1489 ctrl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)); 1490 ctrl |= IXGBE_RXDCTL_VME; 1491 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), ctrl); 1492 /* 1493 * Let Rx path know that it needs to store VLAN tag 1494 * as part of extra mbuf info. 1495 */ 1496 adapter->rx_queues[i].rxr.vtag_strip = TRUE; 1497 } 1498 } 1499 1500 /* 1501 * If filtering VLAN tags is disabled, 1502 * there is no need to fill VLAN Filter Table Array (VFTA). 1503 */ 1504 if ((ifp->if_capenable & IFCAP_VLAN_HWFILTER) == 0) 1505 return; 1506 1507 /* 1508 * A soft reset zero's out the VFTA, so 1509 * we need to repopulate it now. 1510 */ 1511 for (int i = 0; i < IXGBE_VFTA_SIZE; i++) { 1512 if (ixv_shadow_vfta[i] == 0) 1513 continue; 1514 vfta = ixv_shadow_vfta[i]; 1515 /* 1516 * Reconstruct the vlan id's 1517 * based on the bits set in each 1518 * of the array ints. 1519 */ 1520 for (int j = 0; j < 32; j++) { 1521 retry = 0; 1522 if ((vfta & (1 << j)) == 0) 1523 continue; 1524 vid = (i * 32) + j; 1525 /* Call the shared code mailbox routine */ 1526 while (hw->mac.ops.set_vfta(hw, vid, 0, TRUE, FALSE)) { 1527 if (++retry > 5) 1528 break; 1529 } 1530 } 1531 } 1532 } /* ixv_setup_vlan_support */ 1533 1534 /************************************************************************ 1535 * ixv_if_register_vlan 1536 * 1537 * Run via a vlan config EVENT, it enables us to use the 1538 * HW Filter table since we can get the vlan id. This just 1539 * creates the entry in the soft version of the VFTA, init 1540 * will repopulate the real table. 1541 ************************************************************************/ 1542 static void 1543 ixv_if_register_vlan(if_ctx_t ctx, u16 vtag) 1544 { 1545 struct adapter *adapter = iflib_get_softc(ctx); 1546 u16 index, bit; 1547 1548 index = (vtag >> 5) & 0x7F; 1549 bit = vtag & 0x1F; 1550 ixv_shadow_vfta[index] |= (1 << bit); 1551 ++adapter->num_vlans; 1552 } /* ixv_if_register_vlan */ 1553 1554 /************************************************************************ 1555 * ixv_if_unregister_vlan 1556 * 1557 * Run via a vlan unconfig EVENT, remove our entry 1558 * in the soft vfta. 1559 ************************************************************************/ 1560 static void 1561 ixv_if_unregister_vlan(if_ctx_t ctx, u16 vtag) 1562 { 1563 struct adapter *adapter = iflib_get_softc(ctx); 1564 u16 index, bit; 1565 1566 index = (vtag >> 5) & 0x7F; 1567 bit = vtag & 0x1F; 1568 ixv_shadow_vfta[index] &= ~(1 << bit); 1569 --adapter->num_vlans; 1570 } /* ixv_if_unregister_vlan */ 1571 1572 /************************************************************************ 1573 * ixv_if_enable_intr 1574 ************************************************************************/ 1575 static void 1576 ixv_if_enable_intr(if_ctx_t ctx) 1577 { 1578 struct adapter *adapter = iflib_get_softc(ctx); 1579 struct ixgbe_hw *hw = &adapter->hw; 1580 struct ix_rx_queue *que = adapter->rx_queues; 1581 u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); 1582 1583 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask); 1584 1585 mask = IXGBE_EIMS_ENABLE_MASK; 1586 mask &= ~(IXGBE_EIMS_OTHER | IXGBE_EIMS_LSC); 1587 IXGBE_WRITE_REG(hw, IXGBE_VTEIAC, mask); 1588 1589 for (int i = 0; i < adapter->num_rx_queues; i++, que++) 1590 ixv_enable_queue(adapter, que->msix); 1591 1592 IXGBE_WRITE_FLUSH(hw); 1593 } /* ixv_if_enable_intr */ 1594 1595 /************************************************************************ 1596 * ixv_if_disable_intr 1597 ************************************************************************/ 1598 static void 1599 ixv_if_disable_intr(if_ctx_t ctx) 1600 { 1601 struct adapter *adapter = iflib_get_softc(ctx); 1602 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIAC, 0); 1603 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIMC, ~0); 1604 IXGBE_WRITE_FLUSH(&adapter->hw); 1605 } /* ixv_if_disable_intr */ 1606 1607 /************************************************************************ 1608 * ixv_if_rx_queue_intr_enable 1609 ************************************************************************/ 1610 static int 1611 ixv_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid) 1612 { 1613 struct adapter *adapter = iflib_get_softc(ctx); 1614 struct ix_rx_queue *que = &adapter->rx_queues[rxqid]; 1615 1616 ixv_enable_queue(adapter, que->rxr.me); 1617 1618 return (0); 1619 } /* ixv_if_rx_queue_intr_enable */ 1620 1621 /************************************************************************ 1622 * ixv_set_ivar 1623 * 1624 * Setup the correct IVAR register for a particular MSI-X interrupt 1625 * - entry is the register array entry 1626 * - vector is the MSI-X vector for this queue 1627 * - type is RX/TX/MISC 1628 ************************************************************************/ 1629 static void 1630 ixv_set_ivar(struct adapter *adapter, u8 entry, u8 vector, s8 type) 1631 { 1632 struct ixgbe_hw *hw = &adapter->hw; 1633 u32 ivar, index; 1634 1635 vector |= IXGBE_IVAR_ALLOC_VAL; 1636 1637 if (type == -1) { /* MISC IVAR */ 1638 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC); 1639 ivar &= ~0xFF; 1640 ivar |= vector; 1641 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR_MISC, ivar); 1642 } else { /* RX/TX IVARS */ 1643 index = (16 * (entry & 1)) + (8 * type); 1644 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR(entry >> 1)); 1645 ivar &= ~(0xFF << index); 1646 ivar |= (vector << index); 1647 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR(entry >> 1), ivar); 1648 } 1649 } /* ixv_set_ivar */ 1650 1651 /************************************************************************ 1652 * ixv_configure_ivars 1653 ************************************************************************/ 1654 static void 1655 ixv_configure_ivars(struct adapter *adapter) 1656 { 1657 struct ix_rx_queue *que = adapter->rx_queues; 1658 1659 MPASS(adapter->num_rx_queues == adapter->num_tx_queues); 1660 1661 for (int i = 0; i < adapter->num_rx_queues; i++, que++) { 1662 /* First the RX queue entry */ 1663 ixv_set_ivar(adapter, i, que->msix, 0); 1664 /* ... and the TX */ 1665 ixv_set_ivar(adapter, i, que->msix, 1); 1666 /* Set an initial value in EITR */ 1667 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEITR(que->msix), 1668 IXGBE_EITR_DEFAULT); 1669 } 1670 1671 /* For the mailbox interrupt */ 1672 ixv_set_ivar(adapter, 1, adapter->vector, -1); 1673 } /* ixv_configure_ivars */ 1674 1675 /************************************************************************ 1676 * ixv_save_stats 1677 * 1678 * The VF stats registers never have a truly virgin 1679 * starting point, so this routine tries to make an 1680 * artificial one, marking ground zero on attach as 1681 * it were. 1682 ************************************************************************/ 1683 static void 1684 ixv_save_stats(struct adapter *adapter) 1685 { 1686 if (adapter->stats.vf.vfgprc || adapter->stats.vf.vfgptc) { 1687 adapter->stats.vf.saved_reset_vfgprc += 1688 adapter->stats.vf.vfgprc - adapter->stats.vf.base_vfgprc; 1689 adapter->stats.vf.saved_reset_vfgptc += 1690 adapter->stats.vf.vfgptc - adapter->stats.vf.base_vfgptc; 1691 adapter->stats.vf.saved_reset_vfgorc += 1692 adapter->stats.vf.vfgorc - adapter->stats.vf.base_vfgorc; 1693 adapter->stats.vf.saved_reset_vfgotc += 1694 adapter->stats.vf.vfgotc - adapter->stats.vf.base_vfgotc; 1695 adapter->stats.vf.saved_reset_vfmprc += 1696 adapter->stats.vf.vfmprc - adapter->stats.vf.base_vfmprc; 1697 } 1698 } /* ixv_save_stats */ 1699 1700 /************************************************************************ 1701 * ixv_init_stats 1702 ************************************************************************/ 1703 static void 1704 ixv_init_stats(struct adapter *adapter) 1705 { 1706 struct ixgbe_hw *hw = &adapter->hw; 1707 1708 adapter->stats.vf.last_vfgprc = IXGBE_READ_REG(hw, IXGBE_VFGPRC); 1709 adapter->stats.vf.last_vfgorc = IXGBE_READ_REG(hw, IXGBE_VFGORC_LSB); 1710 adapter->stats.vf.last_vfgorc |= 1711 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGORC_MSB))) << 32); 1712 1713 adapter->stats.vf.last_vfgptc = IXGBE_READ_REG(hw, IXGBE_VFGPTC); 1714 adapter->stats.vf.last_vfgotc = IXGBE_READ_REG(hw, IXGBE_VFGOTC_LSB); 1715 adapter->stats.vf.last_vfgotc |= 1716 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGOTC_MSB))) << 32); 1717 1718 adapter->stats.vf.last_vfmprc = IXGBE_READ_REG(hw, IXGBE_VFMPRC); 1719 1720 adapter->stats.vf.base_vfgprc = adapter->stats.vf.last_vfgprc; 1721 adapter->stats.vf.base_vfgorc = adapter->stats.vf.last_vfgorc; 1722 adapter->stats.vf.base_vfgptc = adapter->stats.vf.last_vfgptc; 1723 adapter->stats.vf.base_vfgotc = adapter->stats.vf.last_vfgotc; 1724 adapter->stats.vf.base_vfmprc = adapter->stats.vf.last_vfmprc; 1725 } /* ixv_init_stats */ 1726 1727 #define UPDATE_STAT_32(reg, last, count) \ 1728 { \ 1729 u32 current = IXGBE_READ_REG(hw, reg); \ 1730 if (current < last) \ 1731 count += 0x100000000LL; \ 1732 last = current; \ 1733 count &= 0xFFFFFFFF00000000LL; \ 1734 count |= current; \ 1735 } 1736 1737 #define UPDATE_STAT_36(lsb, msb, last, count) \ 1738 { \ 1739 u64 cur_lsb = IXGBE_READ_REG(hw, lsb); \ 1740 u64 cur_msb = IXGBE_READ_REG(hw, msb); \ 1741 u64 current = ((cur_msb << 32) | cur_lsb); \ 1742 if (current < last) \ 1743 count += 0x1000000000LL; \ 1744 last = current; \ 1745 count &= 0xFFFFFFF000000000LL; \ 1746 count |= current; \ 1747 } 1748 1749 /************************************************************************ 1750 * ixv_update_stats - Update the board statistics counters. 1751 ************************************************************************/ 1752 void 1753 ixv_update_stats(struct adapter *adapter) 1754 { 1755 struct ixgbe_hw *hw = &adapter->hw; 1756 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 1757 1758 UPDATE_STAT_32(IXGBE_VFGPRC, adapter->stats.vf.last_vfgprc, 1759 adapter->stats.vf.vfgprc); 1760 UPDATE_STAT_32(IXGBE_VFGPTC, adapter->stats.vf.last_vfgptc, 1761 adapter->stats.vf.vfgptc); 1762 UPDATE_STAT_36(IXGBE_VFGORC_LSB, IXGBE_VFGORC_MSB, 1763 adapter->stats.vf.last_vfgorc, adapter->stats.vf.vfgorc); 1764 UPDATE_STAT_36(IXGBE_VFGOTC_LSB, IXGBE_VFGOTC_MSB, 1765 adapter->stats.vf.last_vfgotc, adapter->stats.vf.vfgotc); 1766 UPDATE_STAT_32(IXGBE_VFMPRC, adapter->stats.vf.last_vfmprc, 1767 adapter->stats.vf.vfmprc); 1768 1769 /* Fill out the OS statistics structure */ 1770 IXGBE_SET_IPACKETS(adapter, stats->vfgprc); 1771 IXGBE_SET_OPACKETS(adapter, stats->vfgptc); 1772 IXGBE_SET_IBYTES(adapter, stats->vfgorc); 1773 IXGBE_SET_OBYTES(adapter, stats->vfgotc); 1774 IXGBE_SET_IMCASTS(adapter, stats->vfmprc); 1775 } /* ixv_update_stats */ 1776 1777 /************************************************************************ 1778 * ixv_add_stats_sysctls - Add statistic sysctls for the VF. 1779 ************************************************************************/ 1780 static void 1781 ixv_add_stats_sysctls(struct adapter *adapter) 1782 { 1783 device_t dev = adapter->dev; 1784 struct ix_tx_queue *tx_que = adapter->tx_queues; 1785 struct ix_rx_queue *rx_que = adapter->rx_queues; 1786 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev); 1787 struct sysctl_oid *tree = device_get_sysctl_tree(dev); 1788 struct sysctl_oid_list *child = SYSCTL_CHILDREN(tree); 1789 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 1790 struct sysctl_oid *stat_node, *queue_node; 1791 struct sysctl_oid_list *stat_list, *queue_list; 1792 1793 #define QUEUE_NAME_LEN 32 1794 char namebuf[QUEUE_NAME_LEN]; 1795 1796 /* Driver Statistics */ 1797 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "watchdog_events", 1798 CTLFLAG_RD, &adapter->watchdog_events, "Watchdog timeouts"); 1799 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "link_irq", 1800 CTLFLAG_RD, &adapter->link_irq, "Link MSI-X IRQ Handled"); 1801 1802 for (int i = 0; i < adapter->num_tx_queues; i++, tx_que++) { 1803 struct tx_ring *txr = &tx_que->txr; 1804 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i); 1805 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf, 1806 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Queue Name"); 1807 queue_list = SYSCTL_CHILDREN(queue_node); 1808 1809 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "tso_tx", 1810 CTLFLAG_RD, &(txr->tso_tx), "TSO Packets"); 1811 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "tx_packets", 1812 CTLFLAG_RD, &(txr->total_packets), "TX Packets"); 1813 } 1814 1815 for (int i = 0; i < adapter->num_rx_queues; i++, rx_que++) { 1816 struct rx_ring *rxr = &rx_que->rxr; 1817 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i); 1818 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf, 1819 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Queue Name"); 1820 queue_list = SYSCTL_CHILDREN(queue_node); 1821 1822 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "irqs", 1823 CTLFLAG_RD, &(rx_que->irqs), "IRQs on queue"); 1824 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_packets", 1825 CTLFLAG_RD, &(rxr->rx_packets), "RX packets"); 1826 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_bytes", 1827 CTLFLAG_RD, &(rxr->rx_bytes), "RX bytes"); 1828 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_discarded", 1829 CTLFLAG_RD, &(rxr->rx_discarded), "Discarded RX packets"); 1830 } 1831 1832 stat_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "mac", 1833 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 1834 "VF Statistics (read from HW registers)"); 1835 stat_list = SYSCTL_CHILDREN(stat_node); 1836 1837 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_rcvd", 1838 CTLFLAG_RD, &stats->vfgprc, "Good Packets Received"); 1839 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_rcvd", 1840 CTLFLAG_RD, &stats->vfgorc, "Good Octets Received"); 1841 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mcast_pkts_rcvd", 1842 CTLFLAG_RD, &stats->vfmprc, "Multicast Packets Received"); 1843 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_txd", 1844 CTLFLAG_RD, &stats->vfgptc, "Good Packets Transmitted"); 1845 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_txd", 1846 CTLFLAG_RD, &stats->vfgotc, "Good Octets Transmitted"); 1847 } /* ixv_add_stats_sysctls */ 1848 1849 /************************************************************************ 1850 * ixv_print_debug_info 1851 * 1852 * Called only when em_display_debug_stats is enabled. 1853 * Provides a way to take a look at important statistics 1854 * maintained by the driver and hardware. 1855 ************************************************************************/ 1856 static void 1857 ixv_print_debug_info(struct adapter *adapter) 1858 { 1859 device_t dev = adapter->dev; 1860 struct ixgbe_hw *hw = &adapter->hw; 1861 1862 device_printf(dev, "Error Byte Count = %u \n", 1863 IXGBE_READ_REG(hw, IXGBE_ERRBC)); 1864 1865 device_printf(dev, "MBX IRQ Handled: %lu\n", (long)adapter->link_irq); 1866 } /* ixv_print_debug_info */ 1867 1868 /************************************************************************ 1869 * ixv_sysctl_debug 1870 ************************************************************************/ 1871 static int 1872 ixv_sysctl_debug(SYSCTL_HANDLER_ARGS) 1873 { 1874 struct adapter *adapter; 1875 int error, result; 1876 1877 result = -1; 1878 error = sysctl_handle_int(oidp, &result, 0, req); 1879 1880 if (error || !req->newptr) 1881 return (error); 1882 1883 if (result == 1) { 1884 adapter = (struct adapter *)arg1; 1885 ixv_print_debug_info(adapter); 1886 } 1887 1888 return error; 1889 } /* ixv_sysctl_debug */ 1890 1891 /************************************************************************ 1892 * ixv_init_device_features 1893 ************************************************************************/ 1894 static void 1895 ixv_init_device_features(struct adapter *adapter) 1896 { 1897 adapter->feat_cap = IXGBE_FEATURE_NETMAP 1898 | IXGBE_FEATURE_VF 1899 | IXGBE_FEATURE_LEGACY_TX; 1900 1901 /* A tad short on feature flags for VFs, atm. */ 1902 switch (adapter->hw.mac.type) { 1903 case ixgbe_mac_82599_vf: 1904 break; 1905 case ixgbe_mac_X540_vf: 1906 break; 1907 case ixgbe_mac_X550_vf: 1908 case ixgbe_mac_X550EM_x_vf: 1909 case ixgbe_mac_X550EM_a_vf: 1910 adapter->feat_cap |= IXGBE_FEATURE_NEEDS_CTXD; 1911 adapter->feat_cap |= IXGBE_FEATURE_RSS; 1912 break; 1913 default: 1914 break; 1915 } 1916 1917 /* Enabled by default... */ 1918 /* Is a virtual function (VF) */ 1919 if (adapter->feat_cap & IXGBE_FEATURE_VF) 1920 adapter->feat_en |= IXGBE_FEATURE_VF; 1921 /* Netmap */ 1922 if (adapter->feat_cap & IXGBE_FEATURE_NETMAP) 1923 adapter->feat_en |= IXGBE_FEATURE_NETMAP; 1924 /* Receive-Side Scaling (RSS) */ 1925 if (adapter->feat_cap & IXGBE_FEATURE_RSS) 1926 adapter->feat_en |= IXGBE_FEATURE_RSS; 1927 /* Needs advanced context descriptor regardless of offloads req'd */ 1928 if (adapter->feat_cap & IXGBE_FEATURE_NEEDS_CTXD) 1929 adapter->feat_en |= IXGBE_FEATURE_NEEDS_CTXD; 1930 } /* ixv_init_device_features */ 1931 1932