ixv.c revision 1.36
1 /****************************************************************************** 2 3 Copyright (c) 2001-2015, 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: head/sys/dev/ixgbe/if_ixv.c 302384 2016-07-07 03:39:18Z sbruno $*/ 34 /*$NetBSD: ixv.c,v 1.36 2017/02/07 04:20:59 msaitoh Exp $*/ 35 36 #include "opt_inet.h" 37 #include "opt_inet6.h" 38 39 #include "ixgbe.h" 40 #include "vlan.h" 41 42 /********************************************************************* 43 * Driver version 44 *********************************************************************/ 45 char ixv_driver_version[] = "1.4.6-k"; 46 47 /********************************************************************* 48 * PCI Device ID Table 49 * 50 * Used by probe to select devices to load on 51 * Last field stores an index into ixv_strings 52 * Last entry must be all 0s 53 * 54 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index } 55 *********************************************************************/ 56 57 static ixgbe_vendor_info_t ixv_vendor_info_array[] = 58 { 59 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_VF, 0, 0, 0}, 60 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X540_VF, 0, 0, 0}, 61 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550_VF, 0, 0, 0}, 62 {IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_X_VF, 0, 0, 0}, 63 /* required last entry */ 64 {0, 0, 0, 0, 0} 65 }; 66 67 /********************************************************************* 68 * Table of branding strings 69 *********************************************************************/ 70 71 static const char *ixv_strings[] = { 72 "Intel(R) PRO/10GbE Virtual Function Network Driver" 73 }; 74 75 /********************************************************************* 76 * Function prototypes 77 *********************************************************************/ 78 static int ixv_probe(device_t, cfdata_t, void *); 79 static void ixv_attach(device_t, device_t, void *); 80 static int ixv_detach(device_t, int); 81 #if 0 82 static int ixv_shutdown(device_t); 83 #endif 84 static int ixv_ioctl(struct ifnet *, u_long, void *); 85 static int ixv_init(struct ifnet *); 86 static void ixv_init_locked(struct adapter *); 87 static void ixv_stop(void *); 88 static void ixv_media_status(struct ifnet *, struct ifmediareq *); 89 static int ixv_media_change(struct ifnet *); 90 static void ixv_identify_hardware(struct adapter *); 91 static int ixv_allocate_pci_resources(struct adapter *, 92 const struct pci_attach_args *); 93 static int ixv_allocate_msix(struct adapter *, 94 const struct pci_attach_args *); 95 static int ixv_setup_msix(struct adapter *); 96 static void ixv_free_pci_resources(struct adapter *); 97 static void ixv_local_timer(void *); 98 static void ixv_local_timer_locked(void *); 99 static void ixv_setup_interface(device_t, struct adapter *); 100 static void ixv_config_link(struct adapter *); 101 102 static void ixv_initialize_transmit_units(struct adapter *); 103 static void ixv_initialize_receive_units(struct adapter *); 104 105 static void ixv_enable_intr(struct adapter *); 106 static void ixv_disable_intr(struct adapter *); 107 static void ixv_set_multi(struct adapter *); 108 static void ixv_update_link_status(struct adapter *); 109 static int ixv_sysctl_debug(SYSCTLFN_PROTO); 110 static void ixv_set_ivar(struct adapter *, u8, u8, s8); 111 static void ixv_configure_ivars(struct adapter *); 112 static u8 * ixv_mc_array_itr(struct ixgbe_hw *, u8 **, u32 *); 113 114 static void ixv_setup_vlan_support(struct adapter *); 115 #if 0 116 static void ixv_register_vlan(void *, struct ifnet *, u16); 117 static void ixv_unregister_vlan(void *, struct ifnet *, u16); 118 #endif 119 120 static void ixv_save_stats(struct adapter *); 121 static void ixv_init_stats(struct adapter *); 122 static void ixv_update_stats(struct adapter *); 123 static void ixv_add_stats_sysctls(struct adapter *); 124 static void ixv_set_sysctl_value(struct adapter *, const char *, 125 const char *, int *, int); 126 127 /* The MSI/X Interrupt handlers */ 128 static int ixv_msix_que(void *); 129 static int ixv_msix_mbx(void *); 130 131 /* Deferred interrupt tasklets */ 132 static void ixv_handle_que(void *); 133 static void ixv_handle_mbx(void *); 134 135 const struct sysctlnode *ixv_sysctl_instance(struct adapter *); 136 static ixgbe_vendor_info_t *ixv_lookup(const struct pci_attach_args *); 137 138 #ifdef DEV_NETMAP 139 /* 140 * This is defined in <dev/netmap/ixgbe_netmap.h>, which is included by 141 * if_ix.c. 142 */ 143 extern void ixgbe_netmap_attach(struct adapter *adapter); 144 145 #include <net/netmap.h> 146 #include <sys/selinfo.h> 147 #include <dev/netmap/netmap_kern.h> 148 #endif /* DEV_NETMAP */ 149 150 /********************************************************************* 151 * FreeBSD Device Interface Entry Points 152 *********************************************************************/ 153 154 CFATTACH_DECL3_NEW(ixv, sizeof(struct adapter), 155 ixv_probe, ixv_attach, ixv_detach, NULL, NULL, NULL, 156 DVF_DETACH_SHUTDOWN); 157 158 # if 0 159 static device_method_t ixv_methods[] = { 160 /* Device interface */ 161 DEVMETHOD(device_probe, ixv_probe), 162 DEVMETHOD(device_attach, ixv_attach), 163 DEVMETHOD(device_detach, ixv_detach), 164 DEVMETHOD(device_shutdown, ixv_shutdown), 165 DEVMETHOD_END 166 }; 167 #endif 168 169 #if 0 170 static driver_t ixv_driver = { 171 "ixv", ixv_methods, sizeof(struct adapter), 172 }; 173 174 devclass_t ixv_devclass; 175 DRIVER_MODULE(ixv, pci, ixv_driver, ixv_devclass, 0, 0); 176 MODULE_DEPEND(ixv, pci, 1, 1, 1); 177 MODULE_DEPEND(ixv, ether, 1, 1, 1); 178 #ifdef DEV_NETMAP 179 MODULE_DEPEND(ix, netmap, 1, 1, 1); 180 #endif /* DEV_NETMAP */ 181 /* XXX depend on 'ix' ? */ 182 #endif 183 184 /* 185 ** TUNEABLE PARAMETERS: 186 */ 187 188 /* Number of Queues - do not exceed MSIX vectors - 1 */ 189 static int ixv_num_queues = 1; 190 #define TUNABLE_INT(__x, __y) 191 TUNABLE_INT("hw.ixv.num_queues", &ixv_num_queues); 192 193 /* 194 ** AIM: Adaptive Interrupt Moderation 195 ** which means that the interrupt rate 196 ** is varied over time based on the 197 ** traffic for that interrupt vector 198 */ 199 static int ixv_enable_aim = FALSE; 200 TUNABLE_INT("hw.ixv.enable_aim", &ixv_enable_aim); 201 202 /* How many packets rxeof tries to clean at a time */ 203 static int ixv_rx_process_limit = 256; 204 TUNABLE_INT("hw.ixv.rx_process_limit", &ixv_rx_process_limit); 205 206 /* How many packets txeof tries to clean at a time */ 207 static int ixv_tx_process_limit = 256; 208 TUNABLE_INT("hw.ixv.tx_process_limit", &ixv_tx_process_limit); 209 210 /* 211 ** Number of TX descriptors per ring, 212 ** setting higher than RX as this seems 213 ** the better performing choice. 214 */ 215 static int ixv_txd = DEFAULT_TXD; 216 TUNABLE_INT("hw.ixv.txd", &ixv_txd); 217 218 /* Number of RX descriptors per ring */ 219 static int ixv_rxd = DEFAULT_RXD; 220 TUNABLE_INT("hw.ixv.rxd", &ixv_rxd); 221 222 /* 223 ** Shadow VFTA table, this is needed because 224 ** the real filter table gets cleared during 225 ** a soft reset and we need to repopulate it. 226 */ 227 static u32 ixv_shadow_vfta[IXGBE_VFTA_SIZE]; 228 229 /********************************************************************* 230 * Device identification routine 231 * 232 * ixv_probe determines if the driver should be loaded on 233 * adapter based on PCI vendor/device id of the adapter. 234 * 235 * return 1 on success, 0 on failure 236 *********************************************************************/ 237 238 static int 239 ixv_probe(device_t dev, cfdata_t cf, void *aux) 240 { 241 #ifdef __HAVE_PCI_MSI_MSIX 242 const struct pci_attach_args *pa = aux; 243 244 return (ixv_lookup(pa) != NULL) ? 1 : 0; 245 #else 246 return 0; 247 #endif 248 } 249 250 static ixgbe_vendor_info_t * 251 ixv_lookup(const struct pci_attach_args *pa) 252 { 253 pcireg_t subid; 254 ixgbe_vendor_info_t *ent; 255 256 INIT_DEBUGOUT("ixv_lookup: begin"); 257 258 if (PCI_VENDOR(pa->pa_id) != IXGBE_INTEL_VENDOR_ID) 259 return NULL; 260 261 subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 262 263 for (ent = ixv_vendor_info_array; ent->vendor_id != 0; ent++) { 264 if ((PCI_VENDOR(pa->pa_id) == ent->vendor_id) && 265 (PCI_PRODUCT(pa->pa_id) == ent->device_id) && 266 267 ((PCI_SUBSYS_VENDOR(subid) == ent->subvendor_id) || 268 (ent->subvendor_id == 0)) && 269 270 ((PCI_SUBSYS_ID(subid) == ent->subdevice_id) || 271 (ent->subdevice_id == 0))) { 272 return ent; 273 } 274 } 275 return NULL; 276 } 277 278 279 static void 280 ixv_sysctl_attach(struct adapter *adapter) 281 { 282 struct sysctllog **log; 283 const struct sysctlnode *rnode, *cnode; 284 device_t dev; 285 286 dev = adapter->dev; 287 log = &adapter->sysctllog; 288 289 if ((rnode = ixv_sysctl_instance(adapter)) == NULL) { 290 aprint_error_dev(dev, "could not create sysctl root\n"); 291 return; 292 } 293 294 if (sysctl_createv(log, 0, &rnode, &cnode, 295 CTLFLAG_READWRITE, CTLTYPE_INT, 296 "debug", SYSCTL_DESCR("Debug Info"), 297 ixv_sysctl_debug, 0, (void *)adapter, 0, CTL_CREATE, CTL_EOL) != 0) 298 aprint_error_dev(dev, "could not create sysctl\n"); 299 300 /* XXX This is an *instance* sysctl controlling a *global* variable. 301 * XXX It's that way in the FreeBSD driver that this derives from. 302 */ 303 if (sysctl_createv(log, 0, &rnode, &cnode, 304 CTLFLAG_READWRITE, CTLTYPE_INT, 305 "enable_aim", SYSCTL_DESCR("Interrupt Moderation"), 306 NULL, 0, &ixv_enable_aim, 0, CTL_CREATE, CTL_EOL) != 0) 307 aprint_error_dev(dev, "could not create sysctl\n"); 308 } 309 310 /********************************************************************* 311 * Device initialization routine 312 * 313 * The attach entry point is called when the driver is being loaded. 314 * This routine identifies the type of hardware, allocates all resources 315 * and initializes the hardware. 316 * 317 * return 0 on success, positive on failure 318 *********************************************************************/ 319 320 static void 321 ixv_attach(device_t parent, device_t dev, void *aux) 322 { 323 struct adapter *adapter; 324 struct ixgbe_hw *hw; 325 int error = 0; 326 ixgbe_vendor_info_t *ent; 327 const struct pci_attach_args *pa = aux; 328 329 INIT_DEBUGOUT("ixv_attach: begin"); 330 331 /* Allocate, clear, and link in our adapter structure */ 332 adapter = device_private(dev); 333 adapter->dev = dev; 334 hw = &adapter->hw; 335 336 #ifdef DEV_NETMAP 337 adapter->init_locked = ixv_init_locked; 338 adapter->stop_locked = ixv_stop; 339 #endif 340 341 adapter->osdep.pc = pa->pa_pc; 342 adapter->osdep.tag = pa->pa_tag; 343 adapter->osdep.dmat = pa->pa_dmat; 344 adapter->osdep.attached = false; 345 346 ent = ixv_lookup(pa); 347 348 KASSERT(ent != NULL); 349 350 aprint_normal(": %s, Version - %s\n", 351 ixv_strings[ent->index], ixv_driver_version); 352 353 /* Core Lock Init*/ 354 IXGBE_CORE_LOCK_INIT(adapter, device_xname(dev)); 355 356 /* SYSCTL APIs */ 357 ixv_sysctl_attach(adapter); 358 359 /* Set up the timer callout */ 360 callout_init(&adapter->timer, 0); 361 362 /* Determine hardware revision */ 363 ixv_identify_hardware(adapter); 364 365 /* Do base PCI setup - map BAR0 */ 366 if (ixv_allocate_pci_resources(adapter, pa)) { 367 aprint_error_dev(dev, "ixv_allocate_pci_resources() failed!\n"); 368 error = ENXIO; 369 goto err_out; 370 } 371 372 /* Sysctls for limiting the amount of work done in the taskqueues */ 373 ixv_set_sysctl_value(adapter, "rx_processing_limit", 374 "max number of rx packets to process", 375 &adapter->rx_process_limit, ixv_rx_process_limit); 376 377 ixv_set_sysctl_value(adapter, "tx_processing_limit", 378 "max number of tx packets to process", 379 &adapter->tx_process_limit, ixv_tx_process_limit); 380 381 /* Do descriptor calc and sanity checks */ 382 if (((ixv_txd * sizeof(union ixgbe_adv_tx_desc)) % DBA_ALIGN) != 0 || 383 ixv_txd < MIN_TXD || ixv_txd > MAX_TXD) { 384 aprint_error_dev(dev, "TXD config issue, using default!\n"); 385 adapter->num_tx_desc = DEFAULT_TXD; 386 } else 387 adapter->num_tx_desc = ixv_txd; 388 389 if (((ixv_rxd * sizeof(union ixgbe_adv_rx_desc)) % DBA_ALIGN) != 0 || 390 ixv_rxd < MIN_RXD || ixv_rxd > MAX_RXD) { 391 aprint_error_dev(dev, "RXD config issue, using default!\n"); 392 adapter->num_rx_desc = DEFAULT_RXD; 393 } else 394 adapter->num_rx_desc = ixv_rxd; 395 396 /* Allocate our TX/RX Queues */ 397 if (ixgbe_allocate_queues(adapter)) { 398 aprint_error_dev(dev, "ixgbe_allocate_queues() failed!\n"); 399 error = ENOMEM; 400 goto err_out; 401 } 402 403 /* 404 ** Initialize the shared code: its 405 ** at this point the mac type is set. 406 */ 407 error = ixgbe_init_shared_code(hw); 408 if (error) { 409 aprint_error_dev(dev, "ixgbe_init_shared_code() failed!\n"); 410 error = EIO; 411 goto err_late; 412 } 413 414 /* Setup the mailbox */ 415 ixgbe_init_mbx_params_vf(hw); 416 417 /* Reset mbox api to 1.0 */ 418 error = ixgbe_reset_hw(hw); 419 if (error == IXGBE_ERR_RESET_FAILED) 420 aprint_error_dev(dev, "ixgbe_reset_hw() failure: Reset Failed!\n"); 421 else if (error) 422 aprint_error_dev(dev, "ixgbe_reset_hw() failed with error %d\n", error); 423 if (error) { 424 error = EIO; 425 goto err_late; 426 } 427 428 /* Negotiate mailbox API version */ 429 error = ixgbevf_negotiate_api_version(hw, ixgbe_mbox_api_11); 430 if (error) 431 aprint_debug_dev(dev, 432 "MBX API 1.1 negotiation failed! Error %d\n", error); 433 434 error = ixgbe_init_hw(hw); 435 if (error) { 436 aprint_error_dev(dev, "ixgbe_init_hw() failed!\n"); 437 error = EIO; 438 goto err_late; 439 } 440 441 error = ixv_allocate_msix(adapter, pa); 442 if (error) { 443 device_printf(dev, "ixv_allocate_msix() failed!\n"); 444 goto err_late; 445 } 446 447 /* If no mac address was assigned, make a random one */ 448 if (!ixv_check_ether_addr(hw->mac.addr)) { 449 u8 addr[ETHER_ADDR_LEN]; 450 uint64_t rndval = cprng_fast64(); 451 452 memcpy(addr, &rndval, sizeof(addr)); 453 addr[0] &= 0xFE; 454 addr[0] |= 0x02; 455 bcopy(addr, hw->mac.addr, sizeof(addr)); 456 } 457 458 /* Setup OS specific network interface */ 459 ixv_setup_interface(dev, adapter); 460 461 /* Do the stats setup */ 462 ixv_save_stats(adapter); 463 ixv_init_stats(adapter); 464 ixv_add_stats_sysctls(adapter); 465 466 /* Register for VLAN events */ 467 #if 0 /* XXX delete after write? */ 468 adapter->vlan_attach = EVENTHANDLER_REGISTER(vlan_config, 469 ixv_register_vlan, adapter, EVENTHANDLER_PRI_FIRST); 470 adapter->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig, 471 ixv_unregister_vlan, adapter, EVENTHANDLER_PRI_FIRST); 472 #endif 473 474 #ifdef DEV_NETMAP 475 ixgbe_netmap_attach(adapter); 476 #endif /* DEV_NETMAP */ 477 INIT_DEBUGOUT("ixv_attach: end"); 478 adapter->osdep.attached = true; 479 return; 480 481 err_late: 482 ixgbe_free_transmit_structures(adapter); 483 ixgbe_free_receive_structures(adapter); 484 err_out: 485 ixv_free_pci_resources(adapter); 486 return; 487 488 } 489 490 /********************************************************************* 491 * Device removal routine 492 * 493 * The detach entry point is called when the driver is being removed. 494 * This routine stops the adapter and deallocates all the resources 495 * that were allocated for driver operation. 496 * 497 * return 0 on success, positive on failure 498 *********************************************************************/ 499 500 static int 501 ixv_detach(device_t dev, int flags) 502 { 503 struct adapter *adapter = device_private(dev); 504 struct ix_queue *que = adapter->queues; 505 506 INIT_DEBUGOUT("ixv_detach: begin"); 507 if (adapter->osdep.attached == false) 508 return 0; 509 510 #if NVLAN > 0 511 /* Make sure VLANS are not using driver */ 512 if (!VLAN_ATTACHED(&adapter->osdep.ec)) 513 ; /* nothing to do: no VLANs */ 514 else if ((flags & (DETACH_SHUTDOWN|DETACH_FORCE)) != 0) 515 vlan_ifdetach(adapter->ifp); 516 else { 517 aprint_error_dev(dev, "VLANs in use, detach first\n"); 518 return EBUSY; 519 } 520 #endif 521 522 IXGBE_CORE_LOCK(adapter); 523 ixv_stop(adapter); 524 IXGBE_CORE_UNLOCK(adapter); 525 526 for (int i = 0; i < adapter->num_queues; i++, que++) { 527 #ifndef IXGBE_LEGACY_TX 528 struct tx_ring *txr = adapter->tx_rings; 529 530 softint_disestablish(txr->txr_si); 531 #endif 532 softint_disestablish(que->que_si); 533 } 534 535 /* Drain the Mailbox(link) queue */ 536 softint_disestablish(adapter->link_si); 537 538 /* Unregister VLAN events */ 539 #if 0 /* XXX msaitoh delete after write? */ 540 if (adapter->vlan_attach != NULL) 541 EVENTHANDLER_DEREGISTER(vlan_config, adapter->vlan_attach); 542 if (adapter->vlan_detach != NULL) 543 EVENTHANDLER_DEREGISTER(vlan_unconfig, adapter->vlan_detach); 544 #endif 545 546 ether_ifdetach(adapter->ifp); 547 callout_halt(&adapter->timer, NULL); 548 #ifdef DEV_NETMAP 549 netmap_detach(adapter->ifp); 550 #endif /* DEV_NETMAP */ 551 ixv_free_pci_resources(adapter); 552 #if 0 /* XXX the NetBSD port is probably missing something here */ 553 bus_generic_detach(dev); 554 #endif 555 if_detach(adapter->ifp); 556 557 ixgbe_free_transmit_structures(adapter); 558 ixgbe_free_receive_structures(adapter); 559 560 IXGBE_CORE_LOCK_DESTROY(adapter); 561 return (0); 562 } 563 564 /********************************************************************* 565 * 566 * Shutdown entry point 567 * 568 **********************************************************************/ 569 #if 0 /* XXX NetBSD ought to register something like this through pmf(9) */ 570 static int 571 ixv_shutdown(device_t dev) 572 { 573 struct adapter *adapter = device_private(dev); 574 IXGBE_CORE_LOCK(adapter); 575 ixv_stop(adapter); 576 IXGBE_CORE_UNLOCK(adapter); 577 return (0); 578 } 579 #endif 580 581 static int 582 ixv_ifflags_cb(struct ethercom *ec) 583 { 584 struct ifnet *ifp = &ec->ec_if; 585 struct adapter *adapter = ifp->if_softc; 586 int change = ifp->if_flags ^ adapter->if_flags, rc = 0; 587 588 IXGBE_CORE_LOCK(adapter); 589 590 if (change != 0) 591 adapter->if_flags = ifp->if_flags; 592 593 if ((change & ~(IFF_CANTCHANGE|IFF_DEBUG)) != 0) 594 rc = ENETRESET; 595 596 IXGBE_CORE_UNLOCK(adapter); 597 598 return rc; 599 } 600 601 /********************************************************************* 602 * Ioctl entry point 603 * 604 * ixv_ioctl is called when the user wants to configure the 605 * interface. 606 * 607 * return 0 on success, positive on failure 608 **********************************************************************/ 609 610 static int 611 ixv_ioctl(struct ifnet * ifp, u_long command, void *data) 612 { 613 struct adapter *adapter = ifp->if_softc; 614 struct ifcapreq *ifcr = data; 615 struct ifreq *ifr = (struct ifreq *) data; 616 int error = 0; 617 int l4csum_en; 618 const int l4csum = IFCAP_CSUM_TCPv4_Rx|IFCAP_CSUM_UDPv4_Rx| 619 IFCAP_CSUM_TCPv6_Rx|IFCAP_CSUM_UDPv6_Rx; 620 621 switch (command) { 622 case SIOCSIFFLAGS: 623 IOCTL_DEBUGOUT("ioctl: SIOCSIFFLAGS (Set Interface Flags)"); 624 break; 625 case SIOCADDMULTI: 626 case SIOCDELMULTI: 627 IOCTL_DEBUGOUT("ioctl: SIOC(ADD|DEL)MULTI"); 628 break; 629 case SIOCSIFMEDIA: 630 case SIOCGIFMEDIA: 631 IOCTL_DEBUGOUT("ioctl: SIOCxIFMEDIA (Get/Set Interface Media)"); 632 break; 633 case SIOCSIFCAP: 634 IOCTL_DEBUGOUT("ioctl: SIOCSIFCAP (Set Capabilities)"); 635 break; 636 case SIOCSIFMTU: 637 IOCTL_DEBUGOUT("ioctl: SIOCSIFMTU (Set Interface MTU)"); 638 break; 639 default: 640 IOCTL_DEBUGOUT1("ioctl: UNKNOWN (0x%X)", (int)command); 641 break; 642 } 643 644 switch (command) { 645 case SIOCSIFMEDIA: 646 case SIOCGIFMEDIA: 647 return ifmedia_ioctl(ifp, ifr, &adapter->media, command); 648 case SIOCSIFCAP: 649 /* Layer-4 Rx checksum offload has to be turned on and 650 * off as a unit. 651 */ 652 l4csum_en = ifcr->ifcr_capenable & l4csum; 653 if (l4csum_en != l4csum && l4csum_en != 0) 654 return EINVAL; 655 /*FALLTHROUGH*/ 656 case SIOCADDMULTI: 657 case SIOCDELMULTI: 658 case SIOCSIFFLAGS: 659 case SIOCSIFMTU: 660 default: 661 if ((error = ether_ioctl(ifp, command, data)) != ENETRESET) 662 return error; 663 if ((ifp->if_flags & IFF_RUNNING) == 0) 664 ; 665 else if (command == SIOCSIFCAP || command == SIOCSIFMTU) { 666 IXGBE_CORE_LOCK(adapter); 667 ixv_init_locked(adapter); 668 IXGBE_CORE_UNLOCK(adapter); 669 } else if (command == SIOCADDMULTI || command == SIOCDELMULTI) { 670 /* 671 * Multicast list has changed; set the hardware filter 672 * accordingly. 673 */ 674 IXGBE_CORE_LOCK(adapter); 675 ixv_disable_intr(adapter); 676 ixv_set_multi(adapter); 677 ixv_enable_intr(adapter); 678 IXGBE_CORE_UNLOCK(adapter); 679 } 680 return 0; 681 } 682 } 683 684 /********************************************************************* 685 * Init entry point 686 * 687 * This routine is used in two ways. It is used by the stack as 688 * init entry point in network interface structure. It is also used 689 * by the driver as a hw/sw initialization routine to get to a 690 * consistent state. 691 * 692 * return 0 on success, positive on failure 693 **********************************************************************/ 694 #define IXGBE_MHADD_MFS_SHIFT 16 695 696 static void 697 ixv_init_locked(struct adapter *adapter) 698 { 699 struct ifnet *ifp = adapter->ifp; 700 device_t dev = adapter->dev; 701 struct ixgbe_hw *hw = &adapter->hw; 702 int error = 0; 703 704 INIT_DEBUGOUT("ixv_init_locked: begin"); 705 KASSERT(mutex_owned(&adapter->core_mtx)); 706 hw->adapter_stopped = FALSE; 707 ixgbe_stop_adapter(hw); 708 callout_stop(&adapter->timer); 709 710 /* reprogram the RAR[0] in case user changed it. */ 711 ixgbe_set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); 712 713 /* Get the latest mac address, User can use a LAA */ 714 memcpy(hw->mac.addr, CLLADDR(adapter->ifp->if_sadl), 715 IXGBE_ETH_LENGTH_OF_ADDRESS); 716 ixgbe_set_rar(hw, 0, hw->mac.addr, 0, 1); 717 hw->addr_ctrl.rar_used_count = 1; 718 719 /* Prepare transmit descriptors and buffers */ 720 if (ixgbe_setup_transmit_structures(adapter)) { 721 aprint_error_dev(dev, "Could not setup transmit structures\n"); 722 ixv_stop(adapter); 723 return; 724 } 725 726 /* Reset VF and renegotiate mailbox API version */ 727 ixgbe_reset_hw(hw); 728 error = ixgbevf_negotiate_api_version(hw, ixgbe_mbox_api_11); 729 if (error) 730 device_printf(dev, "MBX API 1.1 negotiation failed! Error %d\n", error); 731 732 ixv_initialize_transmit_units(adapter); 733 734 /* Setup Multicast table */ 735 ixv_set_multi(adapter); 736 737 /* 738 ** Determine the correct mbuf pool 739 ** for doing jumbo/headersplit 740 */ 741 if (ifp->if_mtu > ETHERMTU) 742 adapter->rx_mbuf_sz = MJUMPAGESIZE; 743 else 744 adapter->rx_mbuf_sz = MCLBYTES; 745 746 /* Prepare receive descriptors and buffers */ 747 if (ixgbe_setup_receive_structures(adapter)) { 748 device_printf(dev, "Could not setup receive structures\n"); 749 ixv_stop(adapter); 750 return; 751 } 752 753 /* Configure RX settings */ 754 ixv_initialize_receive_units(adapter); 755 756 #if 0 /* XXX isn't it required? -- msaitoh */ 757 /* Set the various hardware offload abilities */ 758 ifp->if_hwassist = 0; 759 if (ifp->if_capenable & IFCAP_TSO4) 760 ifp->if_hwassist |= CSUM_TSO; 761 if (ifp->if_capenable & IFCAP_TXCSUM) { 762 ifp->if_hwassist |= (CSUM_TCP | CSUM_UDP); 763 #if __FreeBSD_version >= 800000 764 ifp->if_hwassist |= CSUM_SCTP; 765 #endif 766 } 767 #endif 768 769 /* Set up VLAN offload and filter */ 770 ixv_setup_vlan_support(adapter); 771 772 /* Set up MSI/X routing */ 773 ixv_configure_ivars(adapter); 774 775 /* Set up auto-mask */ 776 IXGBE_WRITE_REG(hw, IXGBE_VTEIAM, IXGBE_EICS_RTX_QUEUE); 777 778 /* Set moderation on the Link interrupt */ 779 IXGBE_WRITE_REG(hw, IXGBE_VTEITR(adapter->vector), IXGBE_LINK_ITR); 780 781 /* Stats init */ 782 ixv_init_stats(adapter); 783 784 /* Config/Enable Link */ 785 ixv_config_link(adapter); 786 787 /* Start watchdog */ 788 callout_reset(&adapter->timer, hz, ixv_local_timer, adapter); 789 790 /* And now turn on interrupts */ 791 ixv_enable_intr(adapter); 792 793 /* Now inform the stack we're ready */ 794 ifp->if_flags |= IFF_RUNNING; 795 ifp->if_flags &= ~IFF_OACTIVE; 796 797 return; 798 } 799 800 static int 801 ixv_init(struct ifnet *ifp) 802 { 803 struct adapter *adapter = ifp->if_softc; 804 805 IXGBE_CORE_LOCK(adapter); 806 ixv_init_locked(adapter); 807 IXGBE_CORE_UNLOCK(adapter); 808 return 0; 809 } 810 811 812 /* 813 ** 814 ** MSIX Interrupt Handlers and Tasklets 815 ** 816 */ 817 818 static inline void 819 ixv_enable_queue(struct adapter *adapter, u32 vector) 820 { 821 struct ixgbe_hw *hw = &adapter->hw; 822 u32 queue = 1 << vector; 823 u32 mask; 824 825 mask = (IXGBE_EIMS_RTX_QUEUE & queue); 826 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask); 827 } 828 829 static inline void 830 ixv_disable_queue(struct adapter *adapter, u32 vector) 831 { 832 struct ixgbe_hw *hw = &adapter->hw; 833 u64 queue = (u64)(1 << vector); 834 u32 mask; 835 836 mask = (IXGBE_EIMS_RTX_QUEUE & queue); 837 IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, mask); 838 } 839 840 static inline void 841 ixv_rearm_queues(struct adapter *adapter, u64 queues) 842 { 843 u32 mask = (IXGBE_EIMS_RTX_QUEUE & queues); 844 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEICS, mask); 845 } 846 847 848 static void 849 ixv_handle_que(void *context) 850 { 851 struct ix_queue *que = context; 852 struct adapter *adapter = que->adapter; 853 struct tx_ring *txr = que->txr; 854 struct ifnet *ifp = adapter->ifp; 855 bool more; 856 857 if (ifp->if_flags & IFF_RUNNING) { 858 more = ixgbe_rxeof(que); 859 IXGBE_TX_LOCK(txr); 860 ixgbe_txeof(txr); 861 #ifndef IXGBE_LEGACY_TX 862 if (pcq_peek(txr->txr_interq) != NULL) 863 ixgbe_mq_start_locked(ifp, txr); 864 #else 865 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 866 ixgbe_start_locked(txr, ifp); 867 #endif 868 IXGBE_TX_UNLOCK(txr); 869 if (more) { 870 adapter->req.ev_count++; 871 softint_schedule(que->que_si); 872 return; 873 } 874 } 875 876 /* Reenable this interrupt */ 877 ixv_enable_queue(adapter, que->msix); 878 return; 879 } 880 881 /********************************************************************* 882 * 883 * MSI Queue Interrupt Service routine 884 * 885 **********************************************************************/ 886 int 887 ixv_msix_que(void *arg) 888 { 889 struct ix_queue *que = arg; 890 struct adapter *adapter = que->adapter; 891 struct ifnet *ifp = adapter->ifp; 892 struct tx_ring *txr = que->txr; 893 struct rx_ring *rxr = que->rxr; 894 bool more; 895 u32 newitr = 0; 896 897 ixv_disable_queue(adapter, que->msix); 898 ++que->irqs.ev_count; 899 900 #ifdef __NetBSD__ 901 /* Don't run ixgbe_rxeof in interrupt context */ 902 more = true; 903 #else 904 more = ixgbe_rxeof(que); 905 #endif 906 907 IXGBE_TX_LOCK(txr); 908 ixgbe_txeof(txr); 909 /* 910 ** Make certain that if the stack 911 ** has anything queued the task gets 912 ** scheduled to handle it. 913 */ 914 #ifdef IXGBE_LEGACY_TX 915 if (!IFQ_IS_EMPTY(&adapter->ifp->if_snd)) 916 ixgbe_start_locked(txr, ifp); 917 #else 918 if (pcq_peek(txr->txr_interq) != NULL) 919 ixgbe_mq_start_locked(ifp, txr); 920 #endif 921 IXGBE_TX_UNLOCK(txr); 922 923 /* Do AIM now? */ 924 925 if (ixv_enable_aim == FALSE) 926 goto no_calc; 927 /* 928 ** Do Adaptive Interrupt Moderation: 929 ** - Write out last calculated setting 930 ** - Calculate based on average size over 931 ** the last interval. 932 */ 933 if (que->eitr_setting) 934 IXGBE_WRITE_REG(&adapter->hw, 935 IXGBE_VTEITR(que->msix), 936 que->eitr_setting); 937 938 que->eitr_setting = 0; 939 940 /* Idle, do nothing */ 941 if ((txr->bytes == 0) && (rxr->bytes == 0)) 942 goto no_calc; 943 944 if ((txr->bytes) && (txr->packets)) 945 newitr = txr->bytes/txr->packets; 946 if ((rxr->bytes) && (rxr->packets)) 947 newitr = max(newitr, 948 (rxr->bytes / rxr->packets)); 949 newitr += 24; /* account for hardware frame, crc */ 950 951 /* set an upper boundary */ 952 newitr = min(newitr, 3000); 953 954 /* Be nice to the mid range */ 955 if ((newitr > 300) && (newitr < 1200)) 956 newitr = (newitr / 3); 957 else 958 newitr = (newitr / 2); 959 960 newitr |= newitr << 16; 961 962 /* save for next interrupt */ 963 que->eitr_setting = newitr; 964 965 /* Reset state */ 966 txr->bytes = 0; 967 txr->packets = 0; 968 rxr->bytes = 0; 969 rxr->packets = 0; 970 971 no_calc: 972 if (more) 973 softint_schedule(que->que_si); 974 else /* Reenable this interrupt */ 975 ixv_enable_queue(adapter, que->msix); 976 return 1; 977 } 978 979 static int 980 ixv_msix_mbx(void *arg) 981 { 982 struct adapter *adapter = arg; 983 struct ixgbe_hw *hw = &adapter->hw; 984 u32 reg; 985 986 ++adapter->link_irq.ev_count; 987 988 /* First get the cause */ 989 reg = IXGBE_READ_REG(hw, IXGBE_VTEICS); 990 /* Clear interrupt with write */ 991 IXGBE_WRITE_REG(hw, IXGBE_VTEICR, reg); 992 993 /* Link status change */ 994 if (reg & IXGBE_EICR_LSC) 995 softint_schedule(adapter->link_si); 996 997 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, IXGBE_EIMS_OTHER); 998 return 1; 999 } 1000 1001 /********************************************************************* 1002 * 1003 * Media Ioctl callback 1004 * 1005 * This routine is called whenever the user queries the status of 1006 * the interface using ifconfig. 1007 * 1008 **********************************************************************/ 1009 static void 1010 ixv_media_status(struct ifnet * ifp, struct ifmediareq * ifmr) 1011 { 1012 struct adapter *adapter = ifp->if_softc; 1013 1014 INIT_DEBUGOUT("ixv_media_status: begin"); 1015 IXGBE_CORE_LOCK(adapter); 1016 ixv_update_link_status(adapter); 1017 1018 ifmr->ifm_status = IFM_AVALID; 1019 ifmr->ifm_active = IFM_ETHER; 1020 1021 if (!adapter->link_active) { 1022 IXGBE_CORE_UNLOCK(adapter); 1023 return; 1024 } 1025 1026 ifmr->ifm_status |= IFM_ACTIVE; 1027 1028 switch (adapter->link_speed) { 1029 case IXGBE_LINK_SPEED_1GB_FULL: 1030 ifmr->ifm_active |= IFM_1000_T | IFM_FDX; 1031 break; 1032 case IXGBE_LINK_SPEED_10GB_FULL: 1033 ifmr->ifm_active |= IFM_FDX; 1034 break; 1035 } 1036 1037 IXGBE_CORE_UNLOCK(adapter); 1038 1039 return; 1040 } 1041 1042 /********************************************************************* 1043 * 1044 * Media Ioctl callback 1045 * 1046 * This routine is called when the user changes speed/duplex using 1047 * media/mediopt option with ifconfig. 1048 * 1049 **********************************************************************/ 1050 static int 1051 ixv_media_change(struct ifnet * ifp) 1052 { 1053 struct adapter *adapter = ifp->if_softc; 1054 struct ifmedia *ifm = &adapter->media; 1055 1056 INIT_DEBUGOUT("ixv_media_change: begin"); 1057 1058 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 1059 return (EINVAL); 1060 1061 switch (IFM_SUBTYPE(ifm->ifm_media)) { 1062 case IFM_AUTO: 1063 break; 1064 default: 1065 device_printf(adapter->dev, "Only auto media type\n"); 1066 return (EINVAL); 1067 } 1068 1069 return (0); 1070 } 1071 1072 1073 /********************************************************************* 1074 * Multicast Update 1075 * 1076 * This routine is called whenever multicast address list is updated. 1077 * 1078 **********************************************************************/ 1079 #define IXGBE_RAR_ENTRIES 16 1080 1081 static void 1082 ixv_set_multi(struct adapter *adapter) 1083 { 1084 struct ether_multi *enm; 1085 struct ether_multistep step; 1086 u8 mta[MAX_NUM_MULTICAST_ADDRESSES * IXGBE_ETH_LENGTH_OF_ADDRESS]; 1087 u8 *update_ptr; 1088 int mcnt = 0; 1089 struct ethercom *ec = &adapter->osdep.ec; 1090 1091 IOCTL_DEBUGOUT("ixv_set_multi: begin"); 1092 1093 ETHER_FIRST_MULTI(step, ec, enm); 1094 while (enm != NULL) { 1095 bcopy(enm->enm_addrlo, 1096 &mta[mcnt * IXGBE_ETH_LENGTH_OF_ADDRESS], 1097 IXGBE_ETH_LENGTH_OF_ADDRESS); 1098 mcnt++; 1099 /* XXX This might be required --msaitoh */ 1100 if (mcnt >= MAX_NUM_MULTICAST_ADDRESSES) 1101 break; 1102 ETHER_NEXT_MULTI(step, enm); 1103 } 1104 1105 update_ptr = mta; 1106 1107 ixgbe_update_mc_addr_list(&adapter->hw, 1108 update_ptr, mcnt, ixv_mc_array_itr, TRUE); 1109 1110 return; 1111 } 1112 1113 /* 1114 * This is an iterator function now needed by the multicast 1115 * shared code. It simply feeds the shared code routine the 1116 * addresses in the array of ixv_set_multi() one by one. 1117 */ 1118 static u8 * 1119 ixv_mc_array_itr(struct ixgbe_hw *hw, u8 **update_ptr, u32 *vmdq) 1120 { 1121 u8 *addr = *update_ptr; 1122 u8 *newptr; 1123 *vmdq = 0; 1124 1125 newptr = addr + IXGBE_ETH_LENGTH_OF_ADDRESS; 1126 *update_ptr = newptr; 1127 return addr; 1128 } 1129 1130 /********************************************************************* 1131 * Timer routine 1132 * 1133 * This routine checks for link status,updates statistics, 1134 * and runs the watchdog check. 1135 * 1136 **********************************************************************/ 1137 1138 static void 1139 ixv_local_timer(void *arg) 1140 { 1141 struct adapter *adapter = arg; 1142 1143 IXGBE_CORE_LOCK(adapter); 1144 ixv_local_timer_locked(adapter); 1145 IXGBE_CORE_UNLOCK(adapter); 1146 } 1147 1148 static void 1149 ixv_local_timer_locked(void *arg) 1150 { 1151 struct adapter *adapter = arg; 1152 device_t dev = adapter->dev; 1153 struct ix_queue *que = adapter->queues; 1154 u64 queues = 0; 1155 int hung = 0; 1156 1157 KASSERT(mutex_owned(&adapter->core_mtx)); 1158 1159 ixv_update_link_status(adapter); 1160 1161 /* Stats Update */ 1162 ixv_update_stats(adapter); 1163 1164 /* 1165 ** Check the TX queues status 1166 ** - mark hung queues so we don't schedule on them 1167 ** - watchdog only if all queues show hung 1168 */ 1169 for (int i = 0; i < adapter->num_queues; i++, que++) { 1170 /* Keep track of queues with work for soft irq */ 1171 if (que->txr->busy) 1172 queues |= ((u64)1 << que->me); 1173 /* 1174 ** Each time txeof runs without cleaning, but there 1175 ** are uncleaned descriptors it increments busy. If 1176 ** we get to the MAX we declare it hung. 1177 */ 1178 if (que->busy == IXGBE_QUEUE_HUNG) { 1179 ++hung; 1180 /* Mark the queue as inactive */ 1181 adapter->active_queues &= ~((u64)1 << que->me); 1182 continue; 1183 } else { 1184 /* Check if we've come back from hung */ 1185 if ((adapter->active_queues & ((u64)1 << que->me)) == 0) 1186 adapter->active_queues |= ((u64)1 << que->me); 1187 } 1188 if (que->busy >= IXGBE_MAX_TX_BUSY) { 1189 device_printf(dev,"Warning queue %d " 1190 "appears to be hung!\n", i); 1191 que->txr->busy = IXGBE_QUEUE_HUNG; 1192 ++hung; 1193 } 1194 1195 } 1196 1197 /* Only truly watchdog if all queues show hung */ 1198 if (hung == adapter->num_queues) 1199 goto watchdog; 1200 else if (queues != 0) { /* Force an IRQ on queues with work */ 1201 ixv_rearm_queues(adapter, queues); 1202 } 1203 1204 callout_reset(&adapter->timer, hz, ixv_local_timer, adapter); 1205 return; 1206 1207 watchdog: 1208 device_printf(adapter->dev, "Watchdog timeout -- resetting\n"); 1209 adapter->ifp->if_flags &= ~IFF_RUNNING; 1210 adapter->watchdog_events.ev_count++; 1211 ixv_init_locked(adapter); 1212 } 1213 1214 /* 1215 ** Note: this routine updates the OS on the link state 1216 ** the real check of the hardware only happens with 1217 ** a link interrupt. 1218 */ 1219 static void 1220 ixv_update_link_status(struct adapter *adapter) 1221 { 1222 struct ifnet *ifp = adapter->ifp; 1223 device_t dev = adapter->dev; 1224 1225 if (adapter->link_up){ 1226 if (adapter->link_active == FALSE) { 1227 if (bootverbose) 1228 device_printf(dev,"Link is up %d Gbps %s \n", 1229 ((adapter->link_speed == 128)? 10:1), 1230 "Full Duplex"); 1231 adapter->link_active = TRUE; 1232 if_link_state_change(ifp, LINK_STATE_UP); 1233 } 1234 } else { /* Link down */ 1235 if (adapter->link_active == TRUE) { 1236 if (bootverbose) 1237 device_printf(dev,"Link is Down\n"); 1238 if_link_state_change(ifp, LINK_STATE_DOWN); 1239 adapter->link_active = FALSE; 1240 } 1241 } 1242 1243 return; 1244 } 1245 1246 1247 static void 1248 ixv_ifstop(struct ifnet *ifp, int disable) 1249 { 1250 struct adapter *adapter = ifp->if_softc; 1251 1252 IXGBE_CORE_LOCK(adapter); 1253 ixv_stop(adapter); 1254 IXGBE_CORE_UNLOCK(adapter); 1255 } 1256 1257 /********************************************************************* 1258 * 1259 * This routine disables all traffic on the adapter by issuing a 1260 * global reset on the MAC and deallocates TX/RX buffers. 1261 * 1262 **********************************************************************/ 1263 1264 static void 1265 ixv_stop(void *arg) 1266 { 1267 struct ifnet *ifp; 1268 struct adapter *adapter = arg; 1269 struct ixgbe_hw *hw = &adapter->hw; 1270 ifp = adapter->ifp; 1271 1272 KASSERT(mutex_owned(&adapter->core_mtx)); 1273 1274 INIT_DEBUGOUT("ixv_stop: begin\n"); 1275 ixv_disable_intr(adapter); 1276 1277 /* Tell the stack that the interface is no longer active */ 1278 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1279 1280 ixgbe_reset_hw(hw); 1281 adapter->hw.adapter_stopped = FALSE; 1282 ixgbe_stop_adapter(hw); 1283 callout_stop(&adapter->timer); 1284 1285 /* reprogram the RAR[0] in case user changed it. */ 1286 ixgbe_set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); 1287 1288 return; 1289 } 1290 1291 1292 /********************************************************************* 1293 * 1294 * Determine hardware revision. 1295 * 1296 **********************************************************************/ 1297 static void 1298 ixv_identify_hardware(struct adapter *adapter) 1299 { 1300 pcitag_t tag; 1301 pci_chipset_tag_t pc; 1302 pcireg_t subid, id; 1303 struct ixgbe_hw *hw = &adapter->hw; 1304 1305 pc = adapter->osdep.pc; 1306 tag = adapter->osdep.tag; 1307 1308 /* 1309 ** Make sure BUSMASTER is set, on a VM under 1310 ** KVM it may not be and will break things. 1311 */ 1312 ixgbe_pci_enable_busmaster(pc, tag); 1313 1314 id = pci_conf_read(pc, tag, PCI_ID_REG); 1315 subid = pci_conf_read(pc, tag, PCI_SUBSYS_ID_REG); 1316 1317 /* Save off the information about this board */ 1318 hw->vendor_id = PCI_VENDOR(id); 1319 hw->device_id = PCI_PRODUCT(id); 1320 hw->revision_id = PCI_REVISION(pci_conf_read(pc, tag, PCI_CLASS_REG)); 1321 hw->subsystem_vendor_id = PCI_SUBSYS_VENDOR(subid); 1322 hw->subsystem_device_id = PCI_SUBSYS_ID(subid); 1323 1324 /* We need this to determine device-specific things */ 1325 ixgbe_set_mac_type(hw); 1326 1327 /* Set the right number of segments */ 1328 adapter->num_segs = IXGBE_82599_SCATTER; 1329 1330 return; 1331 } 1332 1333 /********************************************************************* 1334 * 1335 * Setup MSIX Interrupt resources and handlers 1336 * 1337 **********************************************************************/ 1338 static int 1339 ixv_allocate_msix(struct adapter *adapter, const struct pci_attach_args *pa) 1340 { 1341 device_t dev = adapter->dev; 1342 struct ix_queue *que = adapter->queues; 1343 struct tx_ring *txr = adapter->tx_rings; 1344 int error, rid, vector = 0; 1345 pci_chipset_tag_t pc; 1346 pcitag_t tag; 1347 char intrbuf[PCI_INTRSTR_LEN]; 1348 char intr_xname[32]; 1349 const char *intrstr = NULL; 1350 kcpuset_t *affinity; 1351 int cpu_id = 0; 1352 1353 pc = adapter->osdep.pc; 1354 tag = adapter->osdep.tag; 1355 1356 adapter->osdep.nintrs = adapter->num_queues + 1; 1357 if (pci_msix_alloc_exact(pa, 1358 &adapter->osdep.intrs, adapter->osdep.nintrs) != 0) 1359 return (ENXIO); 1360 1361 kcpuset_create(&affinity, false); 1362 for (int i = 0; i < adapter->num_queues; i++, vector++, que++, txr++) { 1363 snprintf(intr_xname, sizeof(intr_xname), "%s TX/RX", 1364 device_xname(dev)); 1365 intrstr = pci_intr_string(pc, adapter->osdep.intrs[i], intrbuf, 1366 sizeof(intrbuf)); 1367 #ifdef IXV_MPSAFE 1368 pci_intr_setattr(pc, adapter->osdep.intrs[i], PCI_INTR_MPSAFE, 1369 true); 1370 #endif 1371 /* Set the handler function */ 1372 que->res = adapter->osdep.ihs[i] = pci_intr_establish_xname(pc, 1373 adapter->osdep.intrs[i], IPL_NET, ixv_msix_que, que, 1374 intr_xname); 1375 if (que->res == NULL) { 1376 pci_intr_release(pc, adapter->osdep.intrs, 1377 adapter->osdep.nintrs); 1378 aprint_error_dev(dev, 1379 "Failed to register QUE handler"); 1380 kcpuset_destroy(affinity); 1381 return (ENXIO); 1382 } 1383 que->msix = vector; 1384 adapter->active_queues |= (u64)(1 << que->msix); 1385 1386 cpu_id = i; 1387 /* Round-robin affinity */ 1388 kcpuset_zero(affinity); 1389 kcpuset_set(affinity, cpu_id % ncpu); 1390 error = interrupt_distribute(adapter->osdep.ihs[i], affinity, 1391 NULL); 1392 aprint_normal_dev(dev, "for TX/RX, interrupting at %s", 1393 intrstr); 1394 if (error == 0) 1395 aprint_normal(", bound queue %d to cpu %d\n", 1396 i, cpu_id); 1397 else 1398 aprint_normal("\n"); 1399 1400 #ifndef IXGBE_LEGACY_TX 1401 txr->txr_si = softint_establish(SOFTINT_NET, 1402 ixgbe_deferred_mq_start, txr); 1403 #endif 1404 que->que_si = softint_establish(SOFTINT_NET, ixv_handle_que, 1405 que); 1406 if (que->que_si == NULL) { 1407 aprint_error_dev(dev, 1408 "could not establish software interrupt\n"); 1409 } 1410 } 1411 1412 /* and Mailbox */ 1413 cpu_id++; 1414 snprintf(intr_xname, sizeof(intr_xname), "%s link", device_xname(dev)); 1415 intrstr = pci_intr_string(pc, adapter->osdep.intrs[vector], intrbuf, 1416 sizeof(intrbuf)); 1417 #ifdef IXG_MPSAFE 1418 pci_intr_setattr(pc, &adapter->osdep.intrs[vector], PCI_INTR_MPSAFE, true); 1419 #endif 1420 /* Set the mbx handler function */ 1421 adapter->osdep.ihs[vector] = pci_intr_establish_xname(pc, 1422 adapter->osdep.intrs[vector], IPL_NET, ixv_msix_mbx, adapter, 1423 intr_xname); 1424 if (adapter->osdep.ihs[vector] == NULL) { 1425 adapter->res = NULL; 1426 aprint_error_dev(dev, "Failed to register LINK handler\n"); 1427 kcpuset_destroy(affinity); 1428 return (ENXIO); 1429 } 1430 /* Round-robin affinity */ 1431 kcpuset_zero(affinity); 1432 kcpuset_set(affinity, cpu_id % ncpu); 1433 error = interrupt_distribute(adapter->osdep.ihs[vector], affinity,NULL); 1434 1435 aprint_normal_dev(dev, 1436 "for link, interrupting at %s, ", intrstr); 1437 if (error == 0) { 1438 aprint_normal("affinity to cpu %d\n", cpu_id); 1439 } 1440 adapter->vector = vector; 1441 /* Tasklets for Mailbox */ 1442 adapter->link_si = softint_establish(SOFTINT_NET, ixv_handle_mbx, 1443 adapter); 1444 /* 1445 ** Due to a broken design QEMU will fail to properly 1446 ** enable the guest for MSIX unless the vectors in 1447 ** the table are all set up, so we must rewrite the 1448 ** ENABLE in the MSIX control register again at this 1449 ** point to cause it to successfully initialize us. 1450 */ 1451 if (adapter->hw.mac.type == ixgbe_mac_82599_vf) { 1452 int msix_ctrl; 1453 pci_get_capability(pc, tag, PCI_CAP_MSIX, &rid, NULL); 1454 rid += PCI_MSIX_CTL; 1455 msix_ctrl = pci_conf_read(pc, tag, rid); 1456 msix_ctrl |= PCI_MSIX_CTL_ENABLE; 1457 pci_conf_write(pc, tag, rid, msix_ctrl); 1458 } 1459 1460 kcpuset_destroy(affinity); 1461 return (0); 1462 } 1463 1464 /* 1465 * Setup MSIX resources, note that the VF 1466 * device MUST use MSIX, there is no fallback. 1467 */ 1468 static int 1469 ixv_setup_msix(struct adapter *adapter) 1470 { 1471 device_t dev = adapter->dev; 1472 int want, queues, msgs; 1473 1474 /* Must have at least 2 MSIX vectors */ 1475 msgs = pci_msix_count(adapter->osdep.pc, adapter->osdep.tag); 1476 if (msgs < 2) { 1477 aprint_error_dev(dev,"MSIX config error\n"); 1478 return (ENXIO); 1479 } 1480 msgs = MIN(msgs, IXG_MAX_NINTR); 1481 1482 /* Figure out a reasonable auto config value */ 1483 queues = (ncpu > (msgs - 1)) ? (msgs - 1) : ncpu; 1484 1485 if (ixv_num_queues != 0) 1486 queues = ixv_num_queues; 1487 else if ((ixv_num_queues == 0) && (queues > IXGBE_VF_MAX_TX_QUEUES)) 1488 queues = IXGBE_VF_MAX_TX_QUEUES; 1489 1490 /* 1491 ** Want vectors for the queues, 1492 ** plus an additional for mailbox. 1493 */ 1494 want = queues + 1; 1495 if (msgs >= want) { 1496 msgs = want; 1497 } else { 1498 aprint_error_dev(dev, 1499 "MSIX Configuration Problem, " 1500 "%d vectors but %d queues wanted!\n", 1501 msgs, want); 1502 return -1; 1503 } 1504 1505 adapter->msix_mem = (void *)1; /* XXX */ 1506 aprint_normal_dev(dev, 1507 "Using MSIX interrupts with %d vectors\n", msgs); 1508 adapter->num_queues = queues; 1509 return (msgs); 1510 } 1511 1512 1513 static int 1514 ixv_allocate_pci_resources(struct adapter *adapter, 1515 const struct pci_attach_args *pa) 1516 { 1517 pcireg_t memtype; 1518 device_t dev = adapter->dev; 1519 bus_addr_t addr; 1520 int flags; 1521 1522 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, PCI_BAR(0)); 1523 1524 switch (memtype) { 1525 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 1526 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 1527 adapter->osdep.mem_bus_space_tag = pa->pa_memt; 1528 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, PCI_BAR(0), 1529 memtype, &addr, &adapter->osdep.mem_size, &flags) != 0) 1530 goto map_err; 1531 if ((flags & BUS_SPACE_MAP_PREFETCHABLE) != 0) { 1532 aprint_normal_dev(dev, "clearing prefetchable bit\n"); 1533 flags &= ~BUS_SPACE_MAP_PREFETCHABLE; 1534 } 1535 if (bus_space_map(adapter->osdep.mem_bus_space_tag, addr, 1536 adapter->osdep.mem_size, flags, 1537 &adapter->osdep.mem_bus_space_handle) != 0) { 1538 map_err: 1539 adapter->osdep.mem_size = 0; 1540 aprint_error_dev(dev, "unable to map BAR0\n"); 1541 return ENXIO; 1542 } 1543 break; 1544 default: 1545 aprint_error_dev(dev, "unexpected type on BAR0\n"); 1546 return ENXIO; 1547 } 1548 1549 /* Pick up the tuneable queues */ 1550 adapter->num_queues = ixv_num_queues; 1551 adapter->hw.back = adapter; 1552 1553 /* 1554 ** Now setup MSI/X, should 1555 ** return us the number of 1556 ** configured vectors. 1557 */ 1558 adapter->msix = ixv_setup_msix(adapter); 1559 if (adapter->msix == ENXIO) 1560 return (ENXIO); 1561 else 1562 return (0); 1563 } 1564 1565 static void 1566 ixv_free_pci_resources(struct adapter * adapter) 1567 { 1568 struct ix_queue *que = adapter->queues; 1569 int rid; 1570 1571 /* 1572 ** Release all msix queue resources: 1573 */ 1574 for (int i = 0; i < adapter->num_queues; i++, que++) { 1575 rid = que->msix + 1; 1576 if (que->res != NULL) 1577 pci_intr_disestablish(adapter->osdep.pc, 1578 adapter->osdep.ihs[i]); 1579 } 1580 1581 1582 /* Clean the Legacy or Link interrupt last */ 1583 if (adapter->vector) /* we are doing MSIX */ 1584 rid = adapter->vector + 1; 1585 else 1586 (adapter->msix != 0) ? (rid = 1):(rid = 0); 1587 1588 if (adapter->osdep.ihs[rid] != NULL) 1589 pci_intr_disestablish(adapter->osdep.pc, 1590 adapter->osdep.ihs[rid]); 1591 adapter->osdep.ihs[rid] = NULL; 1592 1593 #if defined(NETBSD_MSI_OR_MSIX) 1594 pci_intr_release(adapter->osdep.pc, adapter->osdep.intrs, 1595 adapter->osdep.nintrs); 1596 #endif 1597 1598 if (adapter->osdep.mem_size != 0) { 1599 bus_space_unmap(adapter->osdep.mem_bus_space_tag, 1600 adapter->osdep.mem_bus_space_handle, 1601 adapter->osdep.mem_size); 1602 } 1603 1604 return; 1605 } 1606 1607 /********************************************************************* 1608 * 1609 * Setup networking device structure and register an interface. 1610 * 1611 **********************************************************************/ 1612 static void 1613 ixv_setup_interface(device_t dev, struct adapter *adapter) 1614 { 1615 struct ethercom *ec = &adapter->osdep.ec; 1616 struct ifnet *ifp; 1617 1618 INIT_DEBUGOUT("ixv_setup_interface: begin"); 1619 1620 ifp = adapter->ifp = &ec->ec_if; 1621 strlcpy(ifp->if_xname, device_xname(dev), IFNAMSIZ); 1622 ifp->if_baudrate = 1000000000; 1623 ifp->if_init = ixv_init; 1624 ifp->if_stop = ixv_ifstop; 1625 ifp->if_softc = adapter; 1626 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1627 ifp->if_ioctl = ixv_ioctl; 1628 #ifndef IXGBE_LEGACY_TX 1629 ifp->if_transmit = ixgbe_mq_start; 1630 #endif 1631 ifp->if_start = ixgbe_start; 1632 ifp->if_snd.ifq_maxlen = adapter->num_tx_desc - 2; 1633 1634 if_initialize(ifp); 1635 ether_ifattach(ifp, adapter->hw.mac.addr); 1636 #ifndef IXGBE_LEGACY_TX 1637 #if 0 /* We use per TX queue softint */ 1638 if_deferred_start_init(ifp, ixgbe_deferred_mq_start); 1639 #endif 1640 #endif 1641 if_register(ifp); 1642 ether_set_ifflags_cb(ec, ixv_ifflags_cb); 1643 1644 adapter->max_frame_size = 1645 ifp->if_mtu + IXGBE_MTU_HDR_VLAN; 1646 1647 /* 1648 * Tell the upper layer(s) we support long frames. 1649 */ 1650 ifp->if_hdrlen = sizeof(struct ether_vlan_header); 1651 1652 ifp->if_capabilities |= IFCAP_HWCSUM | IFCAP_TSOv4; 1653 ifp->if_capenable = 0; 1654 1655 ec->ec_capabilities |= ETHERCAP_VLAN_HWCSUM; 1656 ec->ec_capabilities |= ETHERCAP_JUMBO_MTU; 1657 ec->ec_capabilities |= ETHERCAP_VLAN_HWTAGGING 1658 | ETHERCAP_VLAN_MTU; 1659 ec->ec_capenable = ec->ec_capabilities; 1660 1661 /* Don't enable LRO by default */ 1662 ifp->if_capabilities |= IFCAP_LRO; 1663 #if 0 1664 ifp->if_capenable = ifp->if_capabilities; 1665 #endif 1666 1667 /* 1668 ** Dont turn this on by default, if vlans are 1669 ** created on another pseudo device (eg. lagg) 1670 ** then vlan events are not passed thru, breaking 1671 ** operation, but with HW FILTER off it works. If 1672 ** using vlans directly on the em driver you can 1673 ** enable this and get full hardware tag filtering. 1674 */ 1675 ec->ec_capabilities |= ETHERCAP_VLAN_HWFILTER; 1676 1677 /* 1678 * Specify the media types supported by this adapter and register 1679 * callbacks to update media and link information 1680 */ 1681 ifmedia_init(&adapter->media, IFM_IMASK, ixv_media_change, 1682 ixv_media_status); 1683 ifmedia_add(&adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL); 1684 ifmedia_set(&adapter->media, IFM_ETHER | IFM_AUTO); 1685 1686 return; 1687 } 1688 1689 static void 1690 ixv_config_link(struct adapter *adapter) 1691 { 1692 struct ixgbe_hw *hw = &adapter->hw; 1693 u32 autoneg; 1694 1695 if (hw->mac.ops.check_link) 1696 hw->mac.ops.check_link(hw, &autoneg, 1697 &adapter->link_up, FALSE); 1698 } 1699 1700 1701 /********************************************************************* 1702 * 1703 * Enable transmit unit. 1704 * 1705 **********************************************************************/ 1706 static void 1707 ixv_initialize_transmit_units(struct adapter *adapter) 1708 { 1709 struct tx_ring *txr = adapter->tx_rings; 1710 struct ixgbe_hw *hw = &adapter->hw; 1711 1712 1713 for (int i = 0; i < adapter->num_queues; i++, txr++) { 1714 u64 tdba = txr->txdma.dma_paddr; 1715 u32 txctrl, txdctl; 1716 1717 /* Set WTHRESH to 8, burst writeback */ 1718 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i)); 1719 txdctl |= (8 << 16); 1720 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), txdctl); 1721 1722 /* Set the HW Tx Head and Tail indices */ 1723 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDH(i), 0); 1724 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDT(i), 0); 1725 1726 /* Set Tx Tail register */ 1727 txr->tail = IXGBE_VFTDT(i); 1728 1729 /* Set Ring parameters */ 1730 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(i), 1731 (tdba & 0x00000000ffffffffULL)); 1732 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAH(i), (tdba >> 32)); 1733 IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(i), 1734 adapter->num_tx_desc * 1735 sizeof(struct ixgbe_legacy_tx_desc)); 1736 txctrl = IXGBE_READ_REG(hw, IXGBE_VFDCA_TXCTRL(i)); 1737 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN; 1738 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(i), txctrl); 1739 1740 /* Now enable */ 1741 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i)); 1742 txdctl |= IXGBE_TXDCTL_ENABLE; 1743 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), txdctl); 1744 } 1745 1746 return; 1747 } 1748 1749 1750 /********************************************************************* 1751 * 1752 * Setup receive registers and features. 1753 * 1754 **********************************************************************/ 1755 #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 1756 1757 static void 1758 ixv_initialize_receive_units(struct adapter *adapter) 1759 { 1760 struct rx_ring *rxr = adapter->rx_rings; 1761 struct ixgbe_hw *hw = &adapter->hw; 1762 struct ifnet *ifp = adapter->ifp; 1763 u32 bufsz, rxcsum, psrtype; 1764 1765 if (ifp->if_mtu > ETHERMTU) 1766 bufsz = 4096 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; 1767 else 1768 bufsz = 2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; 1769 1770 psrtype = IXGBE_PSRTYPE_TCPHDR | IXGBE_PSRTYPE_UDPHDR | 1771 IXGBE_PSRTYPE_IPV4HDR | IXGBE_PSRTYPE_IPV6HDR | 1772 IXGBE_PSRTYPE_L2HDR; 1773 1774 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype); 1775 1776 /* Tell PF our max_frame size */ 1777 ixgbevf_rlpml_set_vf(hw, adapter->max_frame_size); 1778 1779 for (int i = 0; i < adapter->num_queues; i++, rxr++) { 1780 u64 rdba = rxr->rxdma.dma_paddr; 1781 u32 reg, rxdctl; 1782 1783 /* Disable the queue */ 1784 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)); 1785 rxdctl &= ~IXGBE_RXDCTL_ENABLE; 1786 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), rxdctl); 1787 for (int j = 0; j < 10; j++) { 1788 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)) & 1789 IXGBE_RXDCTL_ENABLE) 1790 msec_delay(1); 1791 else 1792 break; 1793 } 1794 wmb(); 1795 /* Setup the Base and Length of the Rx Descriptor Ring */ 1796 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(i), 1797 (rdba & 0x00000000ffffffffULL)); 1798 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(i), 1799 (rdba >> 32)); 1800 IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(i), 1801 adapter->num_rx_desc * sizeof(union ixgbe_adv_rx_desc)); 1802 1803 /* Reset the ring indices */ 1804 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(rxr->me), 0); 1805 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 0); 1806 1807 /* Set up the SRRCTL register */ 1808 reg = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i)); 1809 reg &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; 1810 reg &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; 1811 reg |= bufsz; 1812 reg |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; 1813 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(i), reg); 1814 1815 /* Capture Rx Tail index */ 1816 rxr->tail = IXGBE_VFRDT(rxr->me); 1817 1818 /* Do the queue enabling last */ 1819 rxdctl |= IXGBE_RXDCTL_ENABLE | IXGBE_RXDCTL_VME; 1820 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), rxdctl); 1821 for (int k = 0; k < 10; k++) { 1822 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)) & 1823 IXGBE_RXDCTL_ENABLE) 1824 break; 1825 else 1826 msec_delay(1); 1827 } 1828 wmb(); 1829 1830 /* Set the Tail Pointer */ 1831 #ifdef DEV_NETMAP 1832 /* 1833 * In netmap mode, we must preserve the buffers made 1834 * available to userspace before the if_init() 1835 * (this is true by default on the TX side, because 1836 * init makes all buffers available to userspace). 1837 * 1838 * netmap_reset() and the device specific routines 1839 * (e.g. ixgbe_setup_receive_rings()) map these 1840 * buffers at the end of the NIC ring, so here we 1841 * must set the RDT (tail) register to make sure 1842 * they are not overwritten. 1843 * 1844 * In this driver the NIC ring starts at RDH = 0, 1845 * RDT points to the last slot available for reception (?), 1846 * so RDT = num_rx_desc - 1 means the whole ring is available. 1847 */ 1848 if (ifp->if_capenable & IFCAP_NETMAP) { 1849 struct netmap_adapter *na = NA(adapter->ifp); 1850 struct netmap_kring *kring = &na->rx_rings[i]; 1851 int t = na->num_rx_desc - 1 - nm_kr_rxspace(kring); 1852 1853 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), t); 1854 } else 1855 #endif /* DEV_NETMAP */ 1856 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 1857 adapter->num_rx_desc - 1); 1858 } 1859 1860 rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); 1861 1862 if (ifp->if_capenable & IFCAP_RXCSUM) 1863 rxcsum |= IXGBE_RXCSUM_PCSD; 1864 1865 if (!(rxcsum & IXGBE_RXCSUM_PCSD)) 1866 rxcsum |= IXGBE_RXCSUM_IPPCSE; 1867 1868 IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); 1869 1870 return; 1871 } 1872 1873 static void 1874 ixv_setup_vlan_support(struct adapter *adapter) 1875 { 1876 struct ixgbe_hw *hw = &adapter->hw; 1877 u32 ctrl, vid, vfta, retry; 1878 struct rx_ring *rxr; 1879 1880 /* 1881 ** We get here thru init_locked, meaning 1882 ** a soft reset, this has already cleared 1883 ** the VFTA and other state, so if there 1884 ** have been no vlan's registered do nothing. 1885 */ 1886 if (!VLAN_ATTACHED(&adapter->osdep.ec)) 1887 return; 1888 1889 /* Enable the queues */ 1890 for (int i = 0; i < adapter->num_queues; i++) { 1891 ctrl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)); 1892 ctrl |= IXGBE_RXDCTL_VME; 1893 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), ctrl); 1894 /* 1895 * Let Rx path know that it needs to store VLAN tag 1896 * as part of extra mbuf info. 1897 */ 1898 rxr = &adapter->rx_rings[i]; 1899 rxr->vtag_strip = TRUE; 1900 } 1901 1902 /* 1903 ** A soft reset zero's out the VFTA, so 1904 ** we need to repopulate it now. 1905 */ 1906 for (int i = 0; i < IXGBE_VFTA_SIZE; i++) { 1907 if (ixv_shadow_vfta[i] == 0) 1908 continue; 1909 vfta = ixv_shadow_vfta[i]; 1910 /* 1911 ** Reconstruct the vlan id's 1912 ** based on the bits set in each 1913 ** of the array ints. 1914 */ 1915 for (int j = 0; j < 32; j++) { 1916 retry = 0; 1917 if ((vfta & (1 << j)) == 0) 1918 continue; 1919 vid = (i * 32) + j; 1920 /* Call the shared code mailbox routine */ 1921 while (ixgbe_set_vfta(hw, vid, 0, TRUE)) { 1922 if (++retry > 5) 1923 break; 1924 } 1925 } 1926 } 1927 } 1928 1929 #if 0 /* XXX Badly need to overhaul vlan(4) on NetBSD. */ 1930 /* 1931 ** This routine is run via an vlan config EVENT, 1932 ** it enables us to use the HW Filter table since 1933 ** we can get the vlan id. This just creates the 1934 ** entry in the soft version of the VFTA, init will 1935 ** repopulate the real table. 1936 */ 1937 static void 1938 ixv_register_vlan(void *arg, struct ifnet *ifp, u16 vtag) 1939 { 1940 struct adapter *adapter = ifp->if_softc; 1941 u16 index, bit; 1942 1943 if (ifp->if_softc != arg) /* Not our event */ 1944 return; 1945 1946 if ((vtag == 0) || (vtag > 4095)) /* Invalid */ 1947 return; 1948 1949 IXGBE_CORE_LOCK(adapter); 1950 index = (vtag >> 5) & 0x7F; 1951 bit = vtag & 0x1F; 1952 ixv_shadow_vfta[index] |= (1 << bit); 1953 /* Re-init to load the changes */ 1954 ixv_init_locked(adapter); 1955 IXGBE_CORE_UNLOCK(adapter); 1956 } 1957 1958 /* 1959 ** This routine is run via an vlan 1960 ** unconfig EVENT, remove our entry 1961 ** in the soft vfta. 1962 */ 1963 static void 1964 ixv_unregister_vlan(void *arg, struct ifnet *ifp, u16 vtag) 1965 { 1966 struct adapter *adapter = ifp->if_softc; 1967 u16 index, bit; 1968 1969 if (ifp->if_softc != arg) 1970 return; 1971 1972 if ((vtag == 0) || (vtag > 4095)) /* Invalid */ 1973 return; 1974 1975 IXGBE_CORE_LOCK(adapter); 1976 index = (vtag >> 5) & 0x7F; 1977 bit = vtag & 0x1F; 1978 ixv_shadow_vfta[index] &= ~(1 << bit); 1979 /* Re-init to load the changes */ 1980 ixv_init_locked(adapter); 1981 IXGBE_CORE_UNLOCK(adapter); 1982 } 1983 #endif 1984 1985 static void 1986 ixv_enable_intr(struct adapter *adapter) 1987 { 1988 struct ixgbe_hw *hw = &adapter->hw; 1989 struct ix_queue *que = adapter->queues; 1990 u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); 1991 1992 1993 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask); 1994 1995 mask = IXGBE_EIMS_ENABLE_MASK; 1996 mask &= ~(IXGBE_EIMS_OTHER | IXGBE_EIMS_LSC); 1997 IXGBE_WRITE_REG(hw, IXGBE_VTEIAC, mask); 1998 1999 for (int i = 0; i < adapter->num_queues; i++, que++) 2000 ixv_enable_queue(adapter, que->msix); 2001 2002 IXGBE_WRITE_FLUSH(hw); 2003 2004 return; 2005 } 2006 2007 static void 2008 ixv_disable_intr(struct adapter *adapter) 2009 { 2010 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIAC, 0); 2011 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIMC, ~0); 2012 IXGBE_WRITE_FLUSH(&adapter->hw); 2013 return; 2014 } 2015 2016 /* 2017 ** Setup the correct IVAR register for a particular MSIX interrupt 2018 ** - entry is the register array entry 2019 ** - vector is the MSIX vector for this queue 2020 ** - type is RX/TX/MISC 2021 */ 2022 static void 2023 ixv_set_ivar(struct adapter *adapter, u8 entry, u8 vector, s8 type) 2024 { 2025 struct ixgbe_hw *hw = &adapter->hw; 2026 u32 ivar, index; 2027 2028 vector |= IXGBE_IVAR_ALLOC_VAL; 2029 2030 if (type == -1) { /* MISC IVAR */ 2031 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC); 2032 ivar &= ~0xFF; 2033 ivar |= vector; 2034 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR_MISC, ivar); 2035 } else { /* RX/TX IVARS */ 2036 index = (16 * (entry & 1)) + (8 * type); 2037 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR(entry >> 1)); 2038 ivar &= ~(0xFF << index); 2039 ivar |= (vector << index); 2040 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR(entry >> 1), ivar); 2041 } 2042 } 2043 2044 static void 2045 ixv_configure_ivars(struct adapter *adapter) 2046 { 2047 struct ix_queue *que = adapter->queues; 2048 2049 for (int i = 0; i < adapter->num_queues; i++, que++) { 2050 /* First the RX queue entry */ 2051 ixv_set_ivar(adapter, i, que->msix, 0); 2052 /* ... and the TX */ 2053 ixv_set_ivar(adapter, i, que->msix, 1); 2054 /* Set an initial value in EITR */ 2055 IXGBE_WRITE_REG(&adapter->hw, 2056 IXGBE_VTEITR(que->msix), IXV_EITR_DEFAULT); 2057 } 2058 2059 /* For the mailbox interrupt */ 2060 ixv_set_ivar(adapter, 1, adapter->vector, -1); 2061 } 2062 2063 2064 /* 2065 ** Tasklet handler for MSIX MBX interrupts 2066 ** - do outside interrupt since it might sleep 2067 */ 2068 static void 2069 ixv_handle_mbx(void *context) 2070 { 2071 struct adapter *adapter = context; 2072 2073 ixgbe_check_link(&adapter->hw, 2074 &adapter->link_speed, &adapter->link_up, 0); 2075 ixv_update_link_status(adapter); 2076 } 2077 2078 /* 2079 ** The VF stats registers never have a truly virgin 2080 ** starting point, so this routine tries to make an 2081 ** artificial one, marking ground zero on attach as 2082 ** it were. 2083 */ 2084 static void 2085 ixv_save_stats(struct adapter *adapter) 2086 { 2087 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 2088 2089 if (stats->vfgprc.ev_count || stats->vfgptc.ev_count) { 2090 stats->saved_reset_vfgprc += 2091 stats->vfgprc.ev_count - stats->base_vfgprc; 2092 stats->saved_reset_vfgptc += 2093 stats->vfgptc.ev_count - stats->base_vfgptc; 2094 stats->saved_reset_vfgorc += 2095 stats->vfgorc.ev_count - stats->base_vfgorc; 2096 stats->saved_reset_vfgotc += 2097 stats->vfgotc.ev_count - stats->base_vfgotc; 2098 stats->saved_reset_vfmprc += 2099 stats->vfmprc.ev_count - stats->base_vfmprc; 2100 } 2101 } 2102 2103 static void 2104 ixv_init_stats(struct adapter *adapter) 2105 { 2106 struct ixgbe_hw *hw = &adapter->hw; 2107 2108 adapter->stats.vf.last_vfgprc = IXGBE_READ_REG(hw, IXGBE_VFGPRC); 2109 adapter->stats.vf.last_vfgorc = IXGBE_READ_REG(hw, IXGBE_VFGORC_LSB); 2110 adapter->stats.vf.last_vfgorc |= 2111 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGORC_MSB))) << 32); 2112 2113 adapter->stats.vf.last_vfgptc = IXGBE_READ_REG(hw, IXGBE_VFGPTC); 2114 adapter->stats.vf.last_vfgotc = IXGBE_READ_REG(hw, IXGBE_VFGOTC_LSB); 2115 adapter->stats.vf.last_vfgotc |= 2116 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGOTC_MSB))) << 32); 2117 2118 adapter->stats.vf.last_vfmprc = IXGBE_READ_REG(hw, IXGBE_VFMPRC); 2119 2120 adapter->stats.vf.base_vfgprc = adapter->stats.vf.last_vfgprc; 2121 adapter->stats.vf.base_vfgorc = adapter->stats.vf.last_vfgorc; 2122 adapter->stats.vf.base_vfgptc = adapter->stats.vf.last_vfgptc; 2123 adapter->stats.vf.base_vfgotc = adapter->stats.vf.last_vfgotc; 2124 adapter->stats.vf.base_vfmprc = adapter->stats.vf.last_vfmprc; 2125 } 2126 2127 #define UPDATE_STAT_32(reg, last, count) \ 2128 { \ 2129 u32 current = IXGBE_READ_REG(hw, reg); \ 2130 if (current < last) \ 2131 count.ev_count += 0x100000000LL; \ 2132 last = current; \ 2133 count.ev_count &= 0xFFFFFFFF00000000LL; \ 2134 count.ev_count |= current; \ 2135 } 2136 2137 #define UPDATE_STAT_36(lsb, msb, last, count) \ 2138 { \ 2139 u64 cur_lsb = IXGBE_READ_REG(hw, lsb); \ 2140 u64 cur_msb = IXGBE_READ_REG(hw, msb); \ 2141 u64 current = ((cur_msb << 32) | cur_lsb); \ 2142 if (current < last) \ 2143 count.ev_count += 0x1000000000LL; \ 2144 last = current; \ 2145 count.ev_count &= 0xFFFFFFF000000000LL; \ 2146 count.ev_count |= current; \ 2147 } 2148 2149 /* 2150 ** ixv_update_stats - Update the board statistics counters. 2151 */ 2152 void 2153 ixv_update_stats(struct adapter *adapter) 2154 { 2155 struct ixgbe_hw *hw = &adapter->hw; 2156 2157 UPDATE_STAT_32(IXGBE_VFGPRC, adapter->stats.vf.last_vfgprc, 2158 adapter->stats.vf.vfgprc); 2159 UPDATE_STAT_32(IXGBE_VFGPTC, adapter->stats.vf.last_vfgptc, 2160 adapter->stats.vf.vfgptc); 2161 UPDATE_STAT_36(IXGBE_VFGORC_LSB, IXGBE_VFGORC_MSB, 2162 adapter->stats.vf.last_vfgorc, adapter->stats.vf.vfgorc); 2163 UPDATE_STAT_36(IXGBE_VFGOTC_LSB, IXGBE_VFGOTC_MSB, 2164 adapter->stats.vf.last_vfgotc, adapter->stats.vf.vfgotc); 2165 UPDATE_STAT_32(IXGBE_VFMPRC, adapter->stats.vf.last_vfmprc, 2166 adapter->stats.vf.vfmprc); 2167 } 2168 2169 /* 2170 * Add statistic sysctls for the VF. 2171 */ 2172 static void 2173 ixv_add_stats_sysctls(struct adapter *adapter) 2174 { 2175 device_t dev = adapter->dev; 2176 struct ix_queue *que = &adapter->queues[0]; 2177 struct tx_ring *txr = que->txr; 2178 struct rx_ring *rxr = que->rxr; 2179 2180 struct ixgbevf_hw_stats *stats = &adapter->stats.vf; 2181 2182 const char *xname = device_xname(dev); 2183 2184 /* Driver Statistics */ 2185 evcnt_attach_dynamic(&adapter->dropped_pkts, EVCNT_TYPE_MISC, 2186 NULL, xname, "Driver dropped packets"); 2187 evcnt_attach_dynamic(&adapter->mbuf_defrag_failed, EVCNT_TYPE_MISC, 2188 NULL, xname, "m_defrag() failed"); 2189 evcnt_attach_dynamic(&adapter->watchdog_events, EVCNT_TYPE_MISC, 2190 NULL, xname, "Watchdog timeouts"); 2191 2192 evcnt_attach_dynamic(&stats->vfgprc, EVCNT_TYPE_MISC, NULL, 2193 xname, "Good Packets Received"); 2194 evcnt_attach_dynamic(&stats->vfgorc, EVCNT_TYPE_MISC, NULL, 2195 xname, "Good Octets Received"); 2196 evcnt_attach_dynamic(&stats->vfmprc, EVCNT_TYPE_MISC, NULL, 2197 xname, "Multicast Packets Received"); 2198 evcnt_attach_dynamic(&stats->vfgptc, EVCNT_TYPE_MISC, NULL, 2199 xname, "Good Packets Transmitted"); 2200 evcnt_attach_dynamic(&stats->vfgotc, EVCNT_TYPE_MISC, NULL, 2201 xname, "Good Octets Transmitted"); 2202 evcnt_attach_dynamic(&que->irqs, EVCNT_TYPE_INTR, NULL, 2203 xname, "IRQs on queue"); 2204 evcnt_attach_dynamic(&rxr->rx_irq, EVCNT_TYPE_INTR, NULL, 2205 xname, "RX irqs on queue"); 2206 evcnt_attach_dynamic(&rxr->rx_packets, EVCNT_TYPE_MISC, NULL, 2207 xname, "RX packets"); 2208 evcnt_attach_dynamic(&rxr->rx_bytes, EVCNT_TYPE_MISC, NULL, 2209 xname, "RX bytes"); 2210 evcnt_attach_dynamic(&rxr->rx_discarded, EVCNT_TYPE_MISC, NULL, 2211 xname, "Discarded RX packets"); 2212 evcnt_attach_dynamic(&txr->total_packets, EVCNT_TYPE_MISC, NULL, 2213 xname, "TX Packets"); 2214 evcnt_attach_dynamic(&txr->no_desc_avail, EVCNT_TYPE_MISC, NULL, 2215 xname, "# of times not enough descriptors were available during TX"); 2216 evcnt_attach_dynamic(&txr->tso_tx, EVCNT_TYPE_MISC, NULL, 2217 xname, "TX TSO"); 2218 } 2219 2220 static void 2221 ixv_set_sysctl_value(struct adapter *adapter, const char *name, 2222 const char *description, int *limit, int value) 2223 { 2224 device_t dev = adapter->dev; 2225 struct sysctllog **log; 2226 const struct sysctlnode *rnode, *cnode; 2227 2228 log = &adapter->sysctllog; 2229 if ((rnode = ixv_sysctl_instance(adapter)) == NULL) { 2230 aprint_error_dev(dev, "could not create sysctl root\n"); 2231 return; 2232 } 2233 if (sysctl_createv(log, 0, &rnode, &cnode, 2234 CTLFLAG_READWRITE, CTLTYPE_INT, 2235 name, SYSCTL_DESCR(description), 2236 NULL, 0, limit, 0, CTL_CREATE, CTL_EOL) != 0) 2237 aprint_error_dev(dev, "could not create sysctl\n"); 2238 *limit = value; 2239 } 2240 2241 /********************************************************************** 2242 * 2243 * This routine is called only when em_display_debug_stats is enabled. 2244 * This routine provides a way to take a look at important statistics 2245 * maintained by the driver and hardware. 2246 * 2247 **********************************************************************/ 2248 static void 2249 ixv_print_debug_info(struct adapter *adapter) 2250 { 2251 device_t dev = adapter->dev; 2252 struct ixgbe_hw *hw = &adapter->hw; 2253 struct ix_queue *que = adapter->queues; 2254 struct rx_ring *rxr; 2255 struct tx_ring *txr; 2256 #ifdef LRO 2257 struct lro_ctrl *lro; 2258 #endif /* LRO */ 2259 2260 device_printf(dev,"Error Byte Count = %u \n", 2261 IXGBE_READ_REG(hw, IXGBE_ERRBC)); 2262 2263 for (int i = 0; i < adapter->num_queues; i++, que++) { 2264 txr = que->txr; 2265 rxr = que->rxr; 2266 #ifdef LRO 2267 lro = &rxr->lro; 2268 #endif /* LRO */ 2269 device_printf(dev,"QUE(%d) IRQs Handled: %lu\n", 2270 que->msix, (long)que->irqs.ev_count); 2271 device_printf(dev,"RX(%d) Packets Received: %lld\n", 2272 rxr->me, (long long)rxr->rx_packets.ev_count); 2273 device_printf(dev,"RX(%d) Bytes Received: %lu\n", 2274 rxr->me, (long)rxr->rx_bytes.ev_count); 2275 #ifdef LRO 2276 device_printf(dev,"RX(%d) LRO Queued= %lld\n", 2277 rxr->me, (long long)lro->lro_queued); 2278 device_printf(dev,"RX(%d) LRO Flushed= %lld\n", 2279 rxr->me, (long long)lro->lro_flushed); 2280 #endif /* LRO */ 2281 device_printf(dev,"TX(%d) Packets Sent: %lu\n", 2282 txr->me, (long)txr->total_packets.ev_count); 2283 device_printf(dev,"TX(%d) NO Desc Avail: %lu\n", 2284 txr->me, (long)txr->no_desc_avail.ev_count); 2285 } 2286 2287 device_printf(dev,"MBX IRQ Handled: %lu\n", 2288 (long)adapter->link_irq.ev_count); 2289 return; 2290 } 2291 2292 static int 2293 ixv_sysctl_debug(SYSCTLFN_ARGS) 2294 { 2295 struct sysctlnode node; 2296 int error, result; 2297 struct adapter *adapter; 2298 2299 node = *rnode; 2300 adapter = (struct adapter *)node.sysctl_data; 2301 node.sysctl_data = &result; 2302 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2303 2304 if (error) 2305 return error; 2306 2307 if (result == 1) 2308 ixv_print_debug_info(adapter); 2309 2310 return 0; 2311 } 2312 2313 const struct sysctlnode * 2314 ixv_sysctl_instance(struct adapter *adapter) 2315 { 2316 const char *dvname; 2317 struct sysctllog **log; 2318 int rc; 2319 const struct sysctlnode *rnode; 2320 2321 log = &adapter->sysctllog; 2322 dvname = device_xname(adapter->dev); 2323 2324 if ((rc = sysctl_createv(log, 0, NULL, &rnode, 2325 0, CTLTYPE_NODE, dvname, 2326 SYSCTL_DESCR("ixv information and settings"), 2327 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2328 goto err; 2329 2330 return rnode; 2331 err: 2332 printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc); 2333 return NULL; 2334 } 2335
Indexes created Tue Sep 30 20:09:53 GMT 2025