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sys/dev/nfe/if_nfe.c
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1 /* $OpenBSD: if_nfe.c,v 1.54 2006/04/07 12:38:12 jsg Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Shigeaki Tagashira <shigeaki@se.hiroshima-u.ac.jp> 5 * Copyright (c) 2006 Damien Bergamini <damien.bergamini@free.fr> 6 * Copyright (c) 2005, 2006 Jonathan Gray <jsg@openbsd.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 /* Driver for NVIDIA nForce MCP Fast Ethernet and Gigabit Ethernet */ 22 23 #include <sys/cdefs.h> 24 __FBSDID("$FreeBSD$"); 25 26 #ifdef HAVE_KERNEL_OPTION_HEADERS 27 #include "opt_device_polling.h" 28 #endif 29 30 #include <sys/param.h> 31 #include <sys/endian.h> 32 #include <sys/systm.h> 33 #include <sys/sockio.h> 34 #include <sys/mbuf.h> 35 #include <sys/malloc.h> 36 #include <sys/module.h> 37 #include <sys/kernel.h> 38 #include <sys/queue.h> 39 #include <sys/socket.h> 40 #include <sys/sysctl.h> 41 #include <sys/taskqueue.h> 42 43 #include <net/if.h> 44 #include <net/if_var.h> 45 #include <net/if_arp.h> 46 #include <net/ethernet.h> 47 #include <net/if_dl.h> 48 #include <net/if_media.h> 49 #include <net/if_types.h> 50 #include <net/if_vlan_var.h> 51 52 #include <net/bpf.h> 53 54 #include <machine/bus.h> 55 #include <machine/resource.h> 56 #include <sys/bus.h> 57 #include <sys/rman.h> 58 59 #include <dev/mii/mii.h> 60 #include <dev/mii/miivar.h> 61 62 #include <dev/pci/pcireg.h> 63 #include <dev/pci/pcivar.h> 64 65 #include <dev/nfe/if_nfereg.h> 66 #include <dev/nfe/if_nfevar.h> 67 68 MODULE_DEPEND(nfe, pci, 1, 1, 1); 69 MODULE_DEPEND(nfe, ether, 1, 1, 1); 70 MODULE_DEPEND(nfe, miibus, 1, 1, 1); 71 72 /* "device miibus" required. See GENERIC if you get errors here. */ 73 #include "miibus_if.h" 74 75 static int nfe_probe(device_t); 76 static int nfe_attach(device_t); 77 static int nfe_detach(device_t); 78 static int nfe_suspend(device_t); 79 static int nfe_resume(device_t); 80 static int nfe_shutdown(device_t); 81 static int nfe_can_use_msix(struct nfe_softc *); 82 static int nfe_detect_msik9(struct nfe_softc *); 83 static void nfe_power(struct nfe_softc *); 84 static int nfe_miibus_readreg(device_t, int, int); 85 static int nfe_miibus_writereg(device_t, int, int, int); 86 static void nfe_miibus_statchg(device_t); 87 static void nfe_mac_config(struct nfe_softc *, struct mii_data *); 88 static void nfe_set_intr(struct nfe_softc *); 89 static __inline void nfe_enable_intr(struct nfe_softc *); 90 static __inline void nfe_disable_intr(struct nfe_softc *); 91 static int nfe_ioctl(if_t, u_long, caddr_t); 92 static void nfe_alloc_msix(struct nfe_softc *, int); 93 static int nfe_intr(void *); 94 static void nfe_int_task(void *, int); 95 static __inline void nfe_discard_rxbuf(struct nfe_softc *, int); 96 static __inline void nfe_discard_jrxbuf(struct nfe_softc *, int); 97 static int nfe_newbuf(struct nfe_softc *, int); 98 static int nfe_jnewbuf(struct nfe_softc *, int); 99 static int nfe_rxeof(struct nfe_softc *, int, int *); 100 static int nfe_jrxeof(struct nfe_softc *, int, int *); 101 static void nfe_txeof(struct nfe_softc *); 102 static int nfe_encap(struct nfe_softc *, struct mbuf **); 103 static void nfe_setmulti(struct nfe_softc *); 104 static void nfe_start(if_t); 105 static void nfe_start_locked(if_t); 106 static void nfe_watchdog(if_t); 107 static void nfe_init(void *); 108 static void nfe_init_locked(void *); 109 static void nfe_stop(if_t); 110 static int nfe_alloc_rx_ring(struct nfe_softc *, struct nfe_rx_ring *); 111 static void nfe_alloc_jrx_ring(struct nfe_softc *, struct nfe_jrx_ring *); 112 static int nfe_init_rx_ring(struct nfe_softc *, struct nfe_rx_ring *); 113 static int nfe_init_jrx_ring(struct nfe_softc *, struct nfe_jrx_ring *); 114 static void nfe_free_rx_ring(struct nfe_softc *, struct nfe_rx_ring *); 115 static void nfe_free_jrx_ring(struct nfe_softc *, struct nfe_jrx_ring *); 116 static int nfe_alloc_tx_ring(struct nfe_softc *, struct nfe_tx_ring *); 117 static void nfe_init_tx_ring(struct nfe_softc *, struct nfe_tx_ring *); 118 static void nfe_free_tx_ring(struct nfe_softc *, struct nfe_tx_ring *); 119 static int nfe_ifmedia_upd(if_t); 120 static void nfe_ifmedia_sts(if_t, struct ifmediareq *); 121 static void nfe_tick(void *); 122 static void nfe_get_macaddr(struct nfe_softc *, uint8_t *); 123 static void nfe_set_macaddr(struct nfe_softc *, uint8_t *); 124 static void nfe_dma_map_segs(void *, bus_dma_segment_t *, int, int); 125 126 static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int, int); 127 static int sysctl_hw_nfe_proc_limit(SYSCTL_HANDLER_ARGS); 128 static void nfe_sysctl_node(struct nfe_softc *); 129 static void nfe_stats_clear(struct nfe_softc *); 130 static void nfe_stats_update(struct nfe_softc *); 131 static void nfe_set_linkspeed(struct nfe_softc *); 132 static void nfe_set_wol(struct nfe_softc *); 133 134 #ifdef NFE_DEBUG 135 static int nfedebug = 0; 136 #define DPRINTF(sc, ...) do { \ 137 if (nfedebug) \ 138 device_printf((sc)->nfe_dev, __VA_ARGS__); \ 139 } while (0) 140 #define DPRINTFN(sc, n, ...) do { \ 141 if (nfedebug >= (n)) \ 142 device_printf((sc)->nfe_dev, __VA_ARGS__); \ 143 } while (0) 144 #else 145 #define DPRINTF(sc, ...) 146 #define DPRINTFN(sc, n, ...) 147 #endif 148 149 #define NFE_LOCK(_sc) mtx_lock(&(_sc)->nfe_mtx) 150 #define NFE_UNLOCK(_sc) mtx_unlock(&(_sc)->nfe_mtx) 151 #define NFE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->nfe_mtx, MA_OWNED) 152 153 /* Tunables. */ 154 static int msi_disable = 0; 155 static int msix_disable = 0; 156 static int jumbo_disable = 0; 157 TUNABLE_INT("hw.nfe.msi_disable", &msi_disable); 158 TUNABLE_INT("hw.nfe.msix_disable", &msix_disable); 159 TUNABLE_INT("hw.nfe.jumbo_disable", &jumbo_disable); 160 161 static device_method_t nfe_methods[] = { 162 /* Device interface */ 163 DEVMETHOD(device_probe, nfe_probe), 164 DEVMETHOD(device_attach, nfe_attach), 165 DEVMETHOD(device_detach, nfe_detach), 166 DEVMETHOD(device_suspend, nfe_suspend), 167 DEVMETHOD(device_resume, nfe_resume), 168 DEVMETHOD(device_shutdown, nfe_shutdown), 169 170 /* MII interface */ 171 DEVMETHOD(miibus_readreg, nfe_miibus_readreg), 172 DEVMETHOD(miibus_writereg, nfe_miibus_writereg), 173 DEVMETHOD(miibus_statchg, nfe_miibus_statchg), 174 175 DEVMETHOD_END 176 }; 177 178 static driver_t nfe_driver = { 179 "nfe", 180 nfe_methods, 181 sizeof(struct nfe_softc) 182 }; 183 184 DRIVER_MODULE(nfe, pci, nfe_driver, 0, 0); 185 DRIVER_MODULE(miibus, nfe, miibus_driver, 0, 0); 186 187 static struct nfe_type nfe_devs[] = { 188 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE_LAN, 189 "NVIDIA nForce MCP Networking Adapter"}, 190 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE2_LAN, 191 "NVIDIA nForce2 MCP2 Networking Adapter"}, 192 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE2_400_LAN1, 193 "NVIDIA nForce2 400 MCP4 Networking Adapter"}, 194 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE2_400_LAN2, 195 "NVIDIA nForce2 400 MCP5 Networking Adapter"}, 196 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN1, 197 "NVIDIA nForce3 MCP3 Networking Adapter"}, 198 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_250_LAN, 199 "NVIDIA nForce3 250 MCP6 Networking Adapter"}, 200 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN4, 201 "NVIDIA nForce3 MCP7 Networking Adapter"}, 202 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE4_LAN1, 203 "NVIDIA nForce4 CK804 MCP8 Networking Adapter"}, 204 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE4_LAN2, 205 "NVIDIA nForce4 CK804 MCP9 Networking Adapter"}, 206 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP04_LAN1, 207 "NVIDIA nForce MCP04 Networking Adapter"}, /* MCP10 */ 208 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP04_LAN2, 209 "NVIDIA nForce MCP04 Networking Adapter"}, /* MCP11 */ 210 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE430_LAN1, 211 "NVIDIA nForce 430 MCP12 Networking Adapter"}, 212 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE430_LAN2, 213 "NVIDIA nForce 430 MCP13 Networking Adapter"}, 214 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP55_LAN1, 215 "NVIDIA nForce MCP55 Networking Adapter"}, 216 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP55_LAN2, 217 "NVIDIA nForce MCP55 Networking Adapter"}, 218 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP61_LAN1, 219 "NVIDIA nForce MCP61 Networking Adapter"}, 220 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP61_LAN2, 221 "NVIDIA nForce MCP61 Networking Adapter"}, 222 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP61_LAN3, 223 "NVIDIA nForce MCP61 Networking Adapter"}, 224 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP61_LAN4, 225 "NVIDIA nForce MCP61 Networking Adapter"}, 226 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_LAN1, 227 "NVIDIA nForce MCP65 Networking Adapter"}, 228 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_LAN2, 229 "NVIDIA nForce MCP65 Networking Adapter"}, 230 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_LAN3, 231 "NVIDIA nForce MCP65 Networking Adapter"}, 232 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_LAN4, 233 "NVIDIA nForce MCP65 Networking Adapter"}, 234 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP67_LAN1, 235 "NVIDIA nForce MCP67 Networking Adapter"}, 236 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP67_LAN2, 237 "NVIDIA nForce MCP67 Networking Adapter"}, 238 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP67_LAN3, 239 "NVIDIA nForce MCP67 Networking Adapter"}, 240 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP67_LAN4, 241 "NVIDIA nForce MCP67 Networking Adapter"}, 242 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP73_LAN1, 243 "NVIDIA nForce MCP73 Networking Adapter"}, 244 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP73_LAN2, 245 "NVIDIA nForce MCP73 Networking Adapter"}, 246 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP73_LAN3, 247 "NVIDIA nForce MCP73 Networking Adapter"}, 248 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP73_LAN4, 249 "NVIDIA nForce MCP73 Networking Adapter"}, 250 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP77_LAN1, 251 "NVIDIA nForce MCP77 Networking Adapter"}, 252 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP77_LAN2, 253 "NVIDIA nForce MCP77 Networking Adapter"}, 254 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP77_LAN3, 255 "NVIDIA nForce MCP77 Networking Adapter"}, 256 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP77_LAN4, 257 "NVIDIA nForce MCP77 Networking Adapter"}, 258 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP79_LAN1, 259 "NVIDIA nForce MCP79 Networking Adapter"}, 260 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP79_LAN2, 261 "NVIDIA nForce MCP79 Networking Adapter"}, 262 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP79_LAN3, 263 "NVIDIA nForce MCP79 Networking Adapter"}, 264 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP79_LAN4, 265 "NVIDIA nForce MCP79 Networking Adapter"}, 266 {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP89_LAN, 267 "NVIDIA nForce MCP89 Networking Adapter"}, 268 {0, 0, NULL} 269 }; 270 271 /* Probe for supported hardware ID's */ 272 static int 273 nfe_probe(device_t dev) 274 { 275 struct nfe_type *t; 276 277 t = nfe_devs; 278 /* Check for matching PCI DEVICE ID's */ 279 while (t->name != NULL) { 280 if ((pci_get_vendor(dev) == t->vid_id) && 281 (pci_get_device(dev) == t->dev_id)) { 282 device_set_desc(dev, t->name); 283 return (BUS_PROBE_DEFAULT); 284 } 285 t++; 286 } 287 288 return (ENXIO); 289 } 290 291 static void 292 nfe_alloc_msix(struct nfe_softc *sc, int count) 293 { 294 int rid; 295 296 rid = PCIR_BAR(2); 297 sc->nfe_msix_res = bus_alloc_resource_any(sc->nfe_dev, SYS_RES_MEMORY, 298 &rid, RF_ACTIVE); 299 if (sc->nfe_msix_res == NULL) { 300 device_printf(sc->nfe_dev, 301 "couldn't allocate MSIX table resource\n"); 302 return; 303 } 304 rid = PCIR_BAR(3); 305 sc->nfe_msix_pba_res = bus_alloc_resource_any(sc->nfe_dev, 306 SYS_RES_MEMORY, &rid, RF_ACTIVE); 307 if (sc->nfe_msix_pba_res == NULL) { 308 device_printf(sc->nfe_dev, 309 "couldn't allocate MSIX PBA resource\n"); 310 bus_release_resource(sc->nfe_dev, SYS_RES_MEMORY, PCIR_BAR(2), 311 sc->nfe_msix_res); 312 sc->nfe_msix_res = NULL; 313 return; 314 } 315 316 if (pci_alloc_msix(sc->nfe_dev, &count) == 0) { 317 if (count == NFE_MSI_MESSAGES) { 318 if (bootverbose) 319 device_printf(sc->nfe_dev, 320 "Using %d MSIX messages\n", count); 321 sc->nfe_msix = 1; 322 } else { 323 if (bootverbose) 324 device_printf(sc->nfe_dev, 325 "couldn't allocate MSIX\n"); 326 pci_release_msi(sc->nfe_dev); 327 bus_release_resource(sc->nfe_dev, SYS_RES_MEMORY, 328 PCIR_BAR(3), sc->nfe_msix_pba_res); 329 bus_release_resource(sc->nfe_dev, SYS_RES_MEMORY, 330 PCIR_BAR(2), sc->nfe_msix_res); 331 sc->nfe_msix_pba_res = NULL; 332 sc->nfe_msix_res = NULL; 333 } 334 } 335 } 336 337 static int 338 nfe_detect_msik9(struct nfe_softc *sc) 339 { 340 static const char *maker = "MSI"; 341 static const char *product = "K9N6PGM2-V2 (MS-7309)"; 342 char *m, *p; 343 int found; 344 345 found = 0; 346 m = kern_getenv("smbios.planar.maker"); 347 p = kern_getenv("smbios.planar.product"); 348 if (m != NULL && p != NULL) { 349 if (strcmp(m, maker) == 0 && strcmp(p, product) == 0) 350 found = 1; 351 } 352 if (m != NULL) 353 freeenv(m); 354 if (p != NULL) 355 freeenv(p); 356 357 return (found); 358 } 359 360 static int 361 nfe_attach(device_t dev) 362 { 363 struct nfe_softc *sc; 364 if_t ifp; 365 bus_addr_t dma_addr_max; 366 int error = 0, i, msic, phyloc, reg, rid; 367 368 sc = device_get_softc(dev); 369 sc->nfe_dev = dev; 370 371 mtx_init(&sc->nfe_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 372 MTX_DEF); 373 callout_init_mtx(&sc->nfe_stat_ch, &sc->nfe_mtx, 0); 374 375 pci_enable_busmaster(dev); 376 377 rid = PCIR_BAR(0); 378 sc->nfe_res[0] = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 379 RF_ACTIVE); 380 if (sc->nfe_res[0] == NULL) { 381 device_printf(dev, "couldn't map memory resources\n"); 382 mtx_destroy(&sc->nfe_mtx); 383 return (ENXIO); 384 } 385 386 if (pci_find_cap(dev, PCIY_EXPRESS, ®) == 0) { 387 uint16_t v, width; 388 389 v = pci_read_config(dev, reg + 0x08, 2); 390 /* Change max. read request size to 4096. */ 391 v &= ~(7 << 12); 392 v |= (5 << 12); 393 pci_write_config(dev, reg + 0x08, v, 2); 394 395 v = pci_read_config(dev, reg + 0x0c, 2); 396 /* link capability */ 397 v = (v >> 4) & 0x0f; 398 width = pci_read_config(dev, reg + 0x12, 2); 399 /* negotiated link width */ 400 width = (width >> 4) & 0x3f; 401 if (v != width) 402 device_printf(sc->nfe_dev, 403 "warning, negotiated width of link(x%d) != " 404 "max. width of link(x%d)\n", width, v); 405 } 406 407 if (nfe_can_use_msix(sc) == 0) { 408 device_printf(sc->nfe_dev, 409 "MSI/MSI-X capability black-listed, will use INTx\n"); 410 msix_disable = 1; 411 msi_disable = 1; 412 } 413 414 /* Allocate interrupt */ 415 if (msix_disable == 0 || msi_disable == 0) { 416 if (msix_disable == 0 && 417 (msic = pci_msix_count(dev)) == NFE_MSI_MESSAGES) 418 nfe_alloc_msix(sc, msic); 419 if (msi_disable == 0 && sc->nfe_msix == 0 && 420 (msic = pci_msi_count(dev)) == NFE_MSI_MESSAGES && 421 pci_alloc_msi(dev, &msic) == 0) { 422 if (msic == NFE_MSI_MESSAGES) { 423 if (bootverbose) 424 device_printf(dev, 425 "Using %d MSI messages\n", msic); 426 sc->nfe_msi = 1; 427 } else 428 pci_release_msi(dev); 429 } 430 } 431 432 if (sc->nfe_msix == 0 && sc->nfe_msi == 0) { 433 rid = 0; 434 sc->nfe_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 435 RF_SHAREABLE | RF_ACTIVE); 436 if (sc->nfe_irq[0] == NULL) { 437 device_printf(dev, "couldn't allocate IRQ resources\n"); 438 error = ENXIO; 439 goto fail; 440 } 441 } else { 442 for (i = 0, rid = 1; i < NFE_MSI_MESSAGES; i++, rid++) { 443 sc->nfe_irq[i] = bus_alloc_resource_any(dev, 444 SYS_RES_IRQ, &rid, RF_ACTIVE); 445 if (sc->nfe_irq[i] == NULL) { 446 device_printf(dev, 447 "couldn't allocate IRQ resources for " 448 "message %d\n", rid); 449 error = ENXIO; 450 goto fail; 451 } 452 } 453 /* Map interrupts to vector 0. */ 454 if (sc->nfe_msix != 0) { 455 NFE_WRITE(sc, NFE_MSIX_MAP0, 0); 456 NFE_WRITE(sc, NFE_MSIX_MAP1, 0); 457 } else if (sc->nfe_msi != 0) { 458 NFE_WRITE(sc, NFE_MSI_MAP0, 0); 459 NFE_WRITE(sc, NFE_MSI_MAP1, 0); 460 } 461 } 462 463 /* Set IRQ status/mask register. */ 464 sc->nfe_irq_status = NFE_IRQ_STATUS; 465 sc->nfe_irq_mask = NFE_IRQ_MASK; 466 sc->nfe_intrs = NFE_IRQ_WANTED; 467 sc->nfe_nointrs = 0; 468 if (sc->nfe_msix != 0) { 469 sc->nfe_irq_status = NFE_MSIX_IRQ_STATUS; 470 sc->nfe_nointrs = NFE_IRQ_WANTED; 471 } else if (sc->nfe_msi != 0) { 472 sc->nfe_irq_mask = NFE_MSI_IRQ_MASK; 473 sc->nfe_intrs = NFE_MSI_VECTOR_0_ENABLED; 474 } 475 476 sc->nfe_devid = pci_get_device(dev); 477 sc->nfe_revid = pci_get_revid(dev); 478 sc->nfe_flags = 0; 479 480 switch (sc->nfe_devid) { 481 case PCI_PRODUCT_NVIDIA_NFORCE3_LAN2: 482 case PCI_PRODUCT_NVIDIA_NFORCE3_LAN3: 483 case PCI_PRODUCT_NVIDIA_NFORCE3_LAN4: 484 case PCI_PRODUCT_NVIDIA_NFORCE3_LAN5: 485 sc->nfe_flags |= NFE_JUMBO_SUP | NFE_HW_CSUM; 486 break; 487 case PCI_PRODUCT_NVIDIA_MCP51_LAN1: 488 case PCI_PRODUCT_NVIDIA_MCP51_LAN2: 489 sc->nfe_flags |= NFE_40BIT_ADDR | NFE_PWR_MGMT | NFE_MIB_V1; 490 break; 491 case PCI_PRODUCT_NVIDIA_CK804_LAN1: 492 case PCI_PRODUCT_NVIDIA_CK804_LAN2: 493 case PCI_PRODUCT_NVIDIA_MCP04_LAN1: 494 case PCI_PRODUCT_NVIDIA_MCP04_LAN2: 495 sc->nfe_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR | NFE_HW_CSUM | 496 NFE_MIB_V1; 497 break; 498 case PCI_PRODUCT_NVIDIA_MCP55_LAN1: 499 case PCI_PRODUCT_NVIDIA_MCP55_LAN2: 500 sc->nfe_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR | NFE_HW_CSUM | 501 NFE_HW_VLAN | NFE_PWR_MGMT | NFE_TX_FLOW_CTRL | NFE_MIB_V2; 502 break; 503 504 case PCI_PRODUCT_NVIDIA_MCP61_LAN1: 505 case PCI_PRODUCT_NVIDIA_MCP61_LAN2: 506 case PCI_PRODUCT_NVIDIA_MCP61_LAN3: 507 case PCI_PRODUCT_NVIDIA_MCP61_LAN4: 508 case PCI_PRODUCT_NVIDIA_MCP67_LAN1: 509 case PCI_PRODUCT_NVIDIA_MCP67_LAN2: 510 case PCI_PRODUCT_NVIDIA_MCP67_LAN3: 511 case PCI_PRODUCT_NVIDIA_MCP67_LAN4: 512 case PCI_PRODUCT_NVIDIA_MCP73_LAN1: 513 case PCI_PRODUCT_NVIDIA_MCP73_LAN2: 514 case PCI_PRODUCT_NVIDIA_MCP73_LAN3: 515 case PCI_PRODUCT_NVIDIA_MCP73_LAN4: 516 sc->nfe_flags |= NFE_40BIT_ADDR | NFE_PWR_MGMT | 517 NFE_CORRECT_MACADDR | NFE_TX_FLOW_CTRL | NFE_MIB_V2; 518 break; 519 case PCI_PRODUCT_NVIDIA_MCP77_LAN1: 520 case PCI_PRODUCT_NVIDIA_MCP77_LAN2: 521 case PCI_PRODUCT_NVIDIA_MCP77_LAN3: 522 case PCI_PRODUCT_NVIDIA_MCP77_LAN4: 523 /* XXX flow control */ 524 sc->nfe_flags |= NFE_40BIT_ADDR | NFE_HW_CSUM | NFE_PWR_MGMT | 525 NFE_CORRECT_MACADDR | NFE_MIB_V3; 526 break; 527 case PCI_PRODUCT_NVIDIA_MCP79_LAN1: 528 case PCI_PRODUCT_NVIDIA_MCP79_LAN2: 529 case PCI_PRODUCT_NVIDIA_MCP79_LAN3: 530 case PCI_PRODUCT_NVIDIA_MCP79_LAN4: 531 case PCI_PRODUCT_NVIDIA_MCP89_LAN: 532 /* XXX flow control */ 533 sc->nfe_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR | NFE_HW_CSUM | 534 NFE_PWR_MGMT | NFE_CORRECT_MACADDR | NFE_MIB_V3; 535 break; 536 case PCI_PRODUCT_NVIDIA_MCP65_LAN1: 537 case PCI_PRODUCT_NVIDIA_MCP65_LAN2: 538 case PCI_PRODUCT_NVIDIA_MCP65_LAN3: 539 case PCI_PRODUCT_NVIDIA_MCP65_LAN4: 540 sc->nfe_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR | 541 NFE_PWR_MGMT | NFE_CORRECT_MACADDR | NFE_TX_FLOW_CTRL | 542 NFE_MIB_V2; 543 break; 544 } 545 546 nfe_power(sc); 547 /* Check for reversed ethernet address */ 548 if ((NFE_READ(sc, NFE_TX_UNK) & NFE_MAC_ADDR_INORDER) != 0) 549 sc->nfe_flags |= NFE_CORRECT_MACADDR; 550 nfe_get_macaddr(sc, sc->eaddr); 551 /* 552 * Allocate the parent bus DMA tag appropriate for PCI. 553 */ 554 dma_addr_max = BUS_SPACE_MAXADDR_32BIT; 555 if ((sc->nfe_flags & NFE_40BIT_ADDR) != 0) 556 dma_addr_max = NFE_DMA_MAXADDR; 557 error = bus_dma_tag_create( 558 bus_get_dma_tag(sc->nfe_dev), /* parent */ 559 1, 0, /* alignment, boundary */ 560 dma_addr_max, /* lowaddr */ 561 BUS_SPACE_MAXADDR, /* highaddr */ 562 NULL, NULL, /* filter, filterarg */ 563 BUS_SPACE_MAXSIZE_32BIT, 0, /* maxsize, nsegments */ 564 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 565 0, /* flags */ 566 NULL, NULL, /* lockfunc, lockarg */ 567 &sc->nfe_parent_tag); 568 if (error) 569 goto fail; 570 571 ifp = sc->nfe_ifp = if_gethandle(IFT_ETHER); 572 if (ifp == NULL) { 573 device_printf(dev, "can not if_gethandle()\n"); 574 error = ENOSPC; 575 goto fail; 576 } 577 578 /* 579 * Allocate Tx and Rx rings. 580 */ 581 if ((error = nfe_alloc_tx_ring(sc, &sc->txq)) != 0) 582 goto fail; 583 584 if ((error = nfe_alloc_rx_ring(sc, &sc->rxq)) != 0) 585 goto fail; 586 587 nfe_alloc_jrx_ring(sc, &sc->jrxq); 588 /* Create sysctl node. */ 589 nfe_sysctl_node(sc); 590 591 if_setsoftc(ifp, sc); 592 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 593 if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); 594 if_setioctlfn(ifp, nfe_ioctl); 595 if_setstartfn(ifp, nfe_start); 596 if_sethwassist(ifp, 0); 597 if_setcapabilities(ifp, 0); 598 if_setinitfn(ifp, nfe_init); 599 if_setsendqlen(ifp, NFE_TX_RING_COUNT - 1); 600 if_setsendqready(ifp); 601 602 if (sc->nfe_flags & NFE_HW_CSUM) { 603 if_setcapabilitiesbit(ifp, IFCAP_HWCSUM | IFCAP_TSO4, 0); 604 if_sethwassistbits(ifp, NFE_CSUM_FEATURES | CSUM_TSO, 0); 605 } 606 if_setcapenable(ifp, if_getcapabilities(ifp)); 607 608 sc->nfe_framesize = if_getmtu(ifp) + NFE_RX_HEADERS; 609 /* VLAN capability setup. */ 610 if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU, 0); 611 if ((sc->nfe_flags & NFE_HW_VLAN) != 0) { 612 if_setcapabilitiesbit(ifp, IFCAP_VLAN_HWTAGGING, 0); 613 if ((if_getcapabilities(ifp) & IFCAP_HWCSUM) != 0) 614 if_setcapabilitiesbit(ifp, 615 (IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWTSO), 0); 616 } 617 618 if (pci_find_cap(dev, PCIY_PMG, ®) == 0) 619 if_setcapabilitiesbit(ifp, IFCAP_WOL_MAGIC, 0); 620 if_setcapenable(ifp, if_getcapabilities(ifp)); 621 622 /* 623 * Tell the upper layer(s) we support long frames. 624 * Must appear after the call to ether_ifattach() because 625 * ether_ifattach() sets ifi_hdrlen to the default value. 626 */ 627 if_setifheaderlen(ifp, sizeof(struct ether_vlan_header)); 628 629 #ifdef DEVICE_POLLING 630 if_setcapabilitiesbit(ifp, IFCAP_POLLING, 0); 631 #endif 632 633 /* Do MII setup */ 634 phyloc = MII_PHY_ANY; 635 if (sc->nfe_devid == PCI_PRODUCT_NVIDIA_MCP61_LAN1 || 636 sc->nfe_devid == PCI_PRODUCT_NVIDIA_MCP61_LAN2 || 637 sc->nfe_devid == PCI_PRODUCT_NVIDIA_MCP61_LAN3 || 638 sc->nfe_devid == PCI_PRODUCT_NVIDIA_MCP61_LAN4) { 639 if (nfe_detect_msik9(sc) != 0) 640 phyloc = 0; 641 } 642 error = mii_attach(dev, &sc->nfe_miibus, ifp, 643 (ifm_change_cb_t)nfe_ifmedia_upd, (ifm_stat_cb_t)nfe_ifmedia_sts, 644 BMSR_DEFCAPMASK, phyloc, MII_OFFSET_ANY, MIIF_DOPAUSE); 645 if (error != 0) { 646 device_printf(dev, "attaching PHYs failed\n"); 647 goto fail; 648 } 649 ether_ifattach(ifp, sc->eaddr); 650 651 NET_TASK_INIT(&sc->nfe_int_task, 0, nfe_int_task, sc); 652 sc->nfe_tq = taskqueue_create_fast("nfe_taskq", M_WAITOK, 653 taskqueue_thread_enqueue, &sc->nfe_tq); 654 taskqueue_start_threads(&sc->nfe_tq, 1, PI_NET, "%s taskq", 655 device_get_nameunit(sc->nfe_dev)); 656 error = 0; 657 if (sc->nfe_msi == 0 && sc->nfe_msix == 0) { 658 error = bus_setup_intr(dev, sc->nfe_irq[0], 659 INTR_TYPE_NET | INTR_MPSAFE, nfe_intr, NULL, sc, 660 &sc->nfe_intrhand[0]); 661 } else { 662 for (i = 0; i < NFE_MSI_MESSAGES; i++) { 663 error = bus_setup_intr(dev, sc->nfe_irq[i], 664 INTR_TYPE_NET | INTR_MPSAFE, nfe_intr, NULL, sc, 665 &sc->nfe_intrhand[i]); 666 if (error != 0) 667 break; 668 } 669 } 670 if (error) { 671 device_printf(dev, "couldn't set up irq\n"); 672 taskqueue_free(sc->nfe_tq); 673 sc->nfe_tq = NULL; 674 ether_ifdetach(ifp); 675 goto fail; 676 } 677 678 fail: 679 if (error) 680 nfe_detach(dev); 681 682 return (error); 683 } 684 685 static int 686 nfe_detach(device_t dev) 687 { 688 struct nfe_softc *sc; 689 if_t ifp; 690 uint8_t eaddr[ETHER_ADDR_LEN]; 691 int i, rid; 692 693 sc = device_get_softc(dev); 694 KASSERT(mtx_initialized(&sc->nfe_mtx), ("nfe mutex not initialized")); 695 ifp = sc->nfe_ifp; 696 697 #ifdef DEVICE_POLLING 698 if (ifp != NULL && if_getcapenable(ifp) & IFCAP_POLLING) 699 ether_poll_deregister(ifp); 700 #endif 701 if (device_is_attached(dev)) { 702 NFE_LOCK(sc); 703 nfe_stop(ifp); 704 if_setflagbits(ifp, 0, IFF_UP); 705 NFE_UNLOCK(sc); 706 callout_drain(&sc->nfe_stat_ch); 707 ether_ifdetach(ifp); 708 } 709 710 if (ifp) { 711 /* restore ethernet address */ 712 if ((sc->nfe_flags & NFE_CORRECT_MACADDR) == 0) { 713 for (i = 0; i < ETHER_ADDR_LEN; i++) { 714 eaddr[i] = sc->eaddr[5 - i]; 715 } 716 } else 717 bcopy(sc->eaddr, eaddr, ETHER_ADDR_LEN); 718 nfe_set_macaddr(sc, eaddr); 719 if_free(ifp); 720 } 721 if (sc->nfe_miibus) 722 device_delete_child(dev, sc->nfe_miibus); 723 bus_generic_detach(dev); 724 if (sc->nfe_tq != NULL) { 725 taskqueue_drain(sc->nfe_tq, &sc->nfe_int_task); 726 taskqueue_free(sc->nfe_tq); 727 sc->nfe_tq = NULL; 728 } 729 730 for (i = 0; i < NFE_MSI_MESSAGES; i++) { 731 if (sc->nfe_intrhand[i] != NULL) { 732 bus_teardown_intr(dev, sc->nfe_irq[i], 733 sc->nfe_intrhand[i]); 734 sc->nfe_intrhand[i] = NULL; 735 } 736 } 737 738 if (sc->nfe_msi == 0 && sc->nfe_msix == 0) { 739 if (sc->nfe_irq[0] != NULL) 740 bus_release_resource(dev, SYS_RES_IRQ, 0, 741 sc->nfe_irq[0]); 742 } else { 743 for (i = 0, rid = 1; i < NFE_MSI_MESSAGES; i++, rid++) { 744 if (sc->nfe_irq[i] != NULL) { 745 bus_release_resource(dev, SYS_RES_IRQ, rid, 746 sc->nfe_irq[i]); 747 sc->nfe_irq[i] = NULL; 748 } 749 } 750 pci_release_msi(dev); 751 } 752 if (sc->nfe_msix_pba_res != NULL) { 753 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(3), 754 sc->nfe_msix_pba_res); 755 sc->nfe_msix_pba_res = NULL; 756 } 757 if (sc->nfe_msix_res != NULL) { 758 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(2), 759 sc->nfe_msix_res); 760 sc->nfe_msix_res = NULL; 761 } 762 if (sc->nfe_res[0] != NULL) { 763 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(0), 764 sc->nfe_res[0]); 765 sc->nfe_res[0] = NULL; 766 } 767 768 nfe_free_tx_ring(sc, &sc->txq); 769 nfe_free_rx_ring(sc, &sc->rxq); 770 nfe_free_jrx_ring(sc, &sc->jrxq); 771 772 if (sc->nfe_parent_tag) { 773 bus_dma_tag_destroy(sc->nfe_parent_tag); 774 sc->nfe_parent_tag = NULL; 775 } 776 777 mtx_destroy(&sc->nfe_mtx); 778 779 return (0); 780 } 781 782 static int 783 nfe_suspend(device_t dev) 784 { 785 struct nfe_softc *sc; 786 787 sc = device_get_softc(dev); 788 789 NFE_LOCK(sc); 790 nfe_stop(sc->nfe_ifp); 791 nfe_set_wol(sc); 792 sc->nfe_suspended = 1; 793 NFE_UNLOCK(sc); 794 795 return (0); 796 } 797 798 static int 799 nfe_resume(device_t dev) 800 { 801 struct nfe_softc *sc; 802 if_t ifp; 803 804 sc = device_get_softc(dev); 805 806 NFE_LOCK(sc); 807 nfe_power(sc); 808 ifp = sc->nfe_ifp; 809 if (if_getflags(ifp) & IFF_UP) 810 nfe_init_locked(sc); 811 sc->nfe_suspended = 0; 812 NFE_UNLOCK(sc); 813 814 return (0); 815 } 816 817 static int 818 nfe_can_use_msix(struct nfe_softc *sc) 819 { 820 static struct msix_blacklist { 821 char *maker; 822 char *product; 823 } msix_blacklists[] = { 824 { "ASUSTeK Computer INC.", "P5N32-SLI PREMIUM" } 825 }; 826 827 struct msix_blacklist *mblp; 828 char *maker, *product; 829 int count, n, use_msix; 830 831 /* 832 * Search base board manufacturer and product name table 833 * to see this system has a known MSI/MSI-X issue. 834 */ 835 maker = kern_getenv("smbios.planar.maker"); 836 product = kern_getenv("smbios.planar.product"); 837 use_msix = 1; 838 if (maker != NULL && product != NULL) { 839 count = nitems(msix_blacklists); 840 mblp = msix_blacklists; 841 for (n = 0; n < count; n++) { 842 if (strcmp(maker, mblp->maker) == 0 && 843 strcmp(product, mblp->product) == 0) { 844 use_msix = 0; 845 break; 846 } 847 mblp++; 848 } 849 } 850 if (maker != NULL) 851 freeenv(maker); 852 if (product != NULL) 853 freeenv(product); 854 855 return (use_msix); 856 } 857 858 /* Take PHY/NIC out of powerdown, from Linux */ 859 static void 860 nfe_power(struct nfe_softc *sc) 861 { 862 uint32_t pwr; 863 864 if ((sc->nfe_flags & NFE_PWR_MGMT) == 0) 865 return; 866 NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_RESET | NFE_RXTX_BIT2); 867 NFE_WRITE(sc, NFE_MAC_RESET, NFE_MAC_RESET_MAGIC); 868 DELAY(100); 869 NFE_WRITE(sc, NFE_MAC_RESET, 0); 870 DELAY(100); 871 NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_BIT2); 872 pwr = NFE_READ(sc, NFE_PWR2_CTL); 873 pwr &= ~NFE_PWR2_WAKEUP_MASK; 874 if (sc->nfe_revid >= 0xa3 && 875 (sc->nfe_devid == PCI_PRODUCT_NVIDIA_NFORCE430_LAN1 || 876 sc->nfe_devid == PCI_PRODUCT_NVIDIA_NFORCE430_LAN2)) 877 pwr |= NFE_PWR2_REVA3; 878 NFE_WRITE(sc, NFE_PWR2_CTL, pwr); 879 } 880 881 static void 882 nfe_miibus_statchg(device_t dev) 883 { 884 struct nfe_softc *sc; 885 struct mii_data *mii; 886 if_t ifp; 887 uint32_t rxctl, txctl; 888 889 sc = device_get_softc(dev); 890 891 mii = device_get_softc(sc->nfe_miibus); 892 ifp = sc->nfe_ifp; 893 894 sc->nfe_link = 0; 895 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 896 (IFM_ACTIVE | IFM_AVALID)) { 897 switch (IFM_SUBTYPE(mii->mii_media_active)) { 898 case IFM_10_T: 899 case IFM_100_TX: 900 case IFM_1000_T: 901 sc->nfe_link = 1; 902 break; 903 default: 904 break; 905 } 906 } 907 908 nfe_mac_config(sc, mii); 909 txctl = NFE_READ(sc, NFE_TX_CTL); 910 rxctl = NFE_READ(sc, NFE_RX_CTL); 911 if (sc->nfe_link != 0 && (if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) { 912 txctl |= NFE_TX_START; 913 rxctl |= NFE_RX_START; 914 } else { 915 txctl &= ~NFE_TX_START; 916 rxctl &= ~NFE_RX_START; 917 } 918 NFE_WRITE(sc, NFE_TX_CTL, txctl); 919 NFE_WRITE(sc, NFE_RX_CTL, rxctl); 920 } 921 922 static void 923 nfe_mac_config(struct nfe_softc *sc, struct mii_data *mii) 924 { 925 uint32_t link, misc, phy, seed; 926 uint32_t val; 927 928 NFE_LOCK_ASSERT(sc); 929 930 phy = NFE_READ(sc, NFE_PHY_IFACE); 931 phy &= ~(NFE_PHY_HDX | NFE_PHY_100TX | NFE_PHY_1000T); 932 933 seed = NFE_READ(sc, NFE_RNDSEED); 934 seed &= ~NFE_SEED_MASK; 935 936 misc = NFE_MISC1_MAGIC; 937 link = NFE_MEDIA_SET; 938 939 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) == 0) { 940 phy |= NFE_PHY_HDX; /* half-duplex */ 941 misc |= NFE_MISC1_HDX; 942 } 943 944 switch (IFM_SUBTYPE(mii->mii_media_active)) { 945 case IFM_1000_T: /* full-duplex only */ 946 link |= NFE_MEDIA_1000T; 947 seed |= NFE_SEED_1000T; 948 phy |= NFE_PHY_1000T; 949 break; 950 case IFM_100_TX: 951 link |= NFE_MEDIA_100TX; 952 seed |= NFE_SEED_100TX; 953 phy |= NFE_PHY_100TX; 954 break; 955 case IFM_10_T: 956 link |= NFE_MEDIA_10T; 957 seed |= NFE_SEED_10T; 958 break; 959 } 960 961 if ((phy & 0x10000000) != 0) { 962 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) 963 val = NFE_R1_MAGIC_1000; 964 else 965 val = NFE_R1_MAGIC_10_100; 966 } else 967 val = NFE_R1_MAGIC_DEFAULT; 968 NFE_WRITE(sc, NFE_SETUP_R1, val); 969 970 NFE_WRITE(sc, NFE_RNDSEED, seed); /* XXX: gigabit NICs only? */ 971 972 NFE_WRITE(sc, NFE_PHY_IFACE, phy); 973 NFE_WRITE(sc, NFE_MISC1, misc); 974 NFE_WRITE(sc, NFE_LINKSPEED, link); 975 976 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) { 977 /* It seems all hardwares supports Rx pause frames. */ 978 val = NFE_READ(sc, NFE_RXFILTER); 979 if ((IFM_OPTIONS(mii->mii_media_active) & 980 IFM_ETH_RXPAUSE) != 0) 981 val |= NFE_PFF_RX_PAUSE; 982 else 983 val &= ~NFE_PFF_RX_PAUSE; 984 NFE_WRITE(sc, NFE_RXFILTER, val); 985 if ((sc->nfe_flags & NFE_TX_FLOW_CTRL) != 0) { 986 val = NFE_READ(sc, NFE_MISC1); 987 if ((IFM_OPTIONS(mii->mii_media_active) & 988 IFM_ETH_TXPAUSE) != 0) { 989 NFE_WRITE(sc, NFE_TX_PAUSE_FRAME, 990 NFE_TX_PAUSE_FRAME_ENABLE); 991 val |= NFE_MISC1_TX_PAUSE; 992 } else { 993 val &= ~NFE_MISC1_TX_PAUSE; 994 NFE_WRITE(sc, NFE_TX_PAUSE_FRAME, 995 NFE_TX_PAUSE_FRAME_DISABLE); 996 } 997 NFE_WRITE(sc, NFE_MISC1, val); 998 } 999 } else { 1000 /* disable rx/tx pause frames */ 1001 val = NFE_READ(sc, NFE_RXFILTER); 1002 val &= ~NFE_PFF_RX_PAUSE; 1003 NFE_WRITE(sc, NFE_RXFILTER, val); 1004 if ((sc->nfe_flags & NFE_TX_FLOW_CTRL) != 0) { 1005 NFE_WRITE(sc, NFE_TX_PAUSE_FRAME, 1006 NFE_TX_PAUSE_FRAME_DISABLE); 1007 val = NFE_READ(sc, NFE_MISC1); 1008 val &= ~NFE_MISC1_TX_PAUSE; 1009 NFE_WRITE(sc, NFE_MISC1, val); 1010 } 1011 } 1012 } 1013 1014 static int 1015 nfe_miibus_readreg(device_t dev, int phy, int reg) 1016 { 1017 struct nfe_softc *sc = device_get_softc(dev); 1018 uint32_t val; 1019 int ntries; 1020 1021 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 1022 1023 if (NFE_READ(sc, NFE_PHY_CTL) & NFE_PHY_BUSY) { 1024 NFE_WRITE(sc, NFE_PHY_CTL, NFE_PHY_BUSY); 1025 DELAY(100); 1026 } 1027 1028 NFE_WRITE(sc, NFE_PHY_CTL, (phy << NFE_PHYADD_SHIFT) | reg); 1029 1030 for (ntries = 0; ntries < NFE_TIMEOUT; ntries++) { 1031 DELAY(100); 1032 if (!(NFE_READ(sc, NFE_PHY_CTL) & NFE_PHY_BUSY)) 1033 break; 1034 } 1035 if (ntries == NFE_TIMEOUT) { 1036 DPRINTFN(sc, 2, "timeout waiting for PHY\n"); 1037 return 0; 1038 } 1039 1040 if (NFE_READ(sc, NFE_PHY_STATUS) & NFE_PHY_ERROR) { 1041 DPRINTFN(sc, 2, "could not read PHY\n"); 1042 return 0; 1043 } 1044 1045 val = NFE_READ(sc, NFE_PHY_DATA); 1046 if (val != 0xffffffff && val != 0) 1047 sc->mii_phyaddr = phy; 1048 1049 DPRINTFN(sc, 2, "mii read phy %d reg 0x%x ret 0x%x\n", phy, reg, val); 1050 1051 return (val); 1052 } 1053 1054 static int 1055 nfe_miibus_writereg(device_t dev, int phy, int reg, int val) 1056 { 1057 struct nfe_softc *sc = device_get_softc(dev); 1058 uint32_t ctl; 1059 int ntries; 1060 1061 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 1062 1063 if (NFE_READ(sc, NFE_PHY_CTL) & NFE_PHY_BUSY) { 1064 NFE_WRITE(sc, NFE_PHY_CTL, NFE_PHY_BUSY); 1065 DELAY(100); 1066 } 1067 1068 NFE_WRITE(sc, NFE_PHY_DATA, val); 1069 ctl = NFE_PHY_WRITE | (phy << NFE_PHYADD_SHIFT) | reg; 1070 NFE_WRITE(sc, NFE_PHY_CTL, ctl); 1071 1072 for (ntries = 0; ntries < NFE_TIMEOUT; ntries++) { 1073 DELAY(100); 1074 if (!(NFE_READ(sc, NFE_PHY_CTL) & NFE_PHY_BUSY)) 1075 break; 1076 } 1077 #ifdef NFE_DEBUG 1078 if (nfedebug >= 2 && ntries == NFE_TIMEOUT) 1079 device_printf(sc->nfe_dev, "could not write to PHY\n"); 1080 #endif 1081 return (0); 1082 } 1083 1084 struct nfe_dmamap_arg { 1085 bus_addr_t nfe_busaddr; 1086 }; 1087 1088 static int 1089 nfe_alloc_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring) 1090 { 1091 struct nfe_dmamap_arg ctx; 1092 struct nfe_rx_data *data; 1093 void *desc; 1094 int i, error, descsize; 1095 1096 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1097 desc = ring->desc64; 1098 descsize = sizeof (struct nfe_desc64); 1099 } else { 1100 desc = ring->desc32; 1101 descsize = sizeof (struct nfe_desc32); 1102 } 1103 1104 ring->cur = ring->next = 0; 1105 1106 error = bus_dma_tag_create(sc->nfe_parent_tag, 1107 NFE_RING_ALIGN, 0, /* alignment, boundary */ 1108 BUS_SPACE_MAXADDR, /* lowaddr */ 1109 BUS_SPACE_MAXADDR, /* highaddr */ 1110 NULL, NULL, /* filter, filterarg */ 1111 NFE_RX_RING_COUNT * descsize, 1, /* maxsize, nsegments */ 1112 NFE_RX_RING_COUNT * descsize, /* maxsegsize */ 1113 0, /* flags */ 1114 NULL, NULL, /* lockfunc, lockarg */ 1115 &ring->rx_desc_tag); 1116 if (error != 0) { 1117 device_printf(sc->nfe_dev, "could not create desc DMA tag\n"); 1118 goto fail; 1119 } 1120 1121 /* allocate memory to desc */ 1122 error = bus_dmamem_alloc(ring->rx_desc_tag, &desc, BUS_DMA_WAITOK | 1123 BUS_DMA_COHERENT | BUS_DMA_ZERO, &ring->rx_desc_map); 1124 if (error != 0) { 1125 device_printf(sc->nfe_dev, "could not create desc DMA map\n"); 1126 goto fail; 1127 } 1128 if (sc->nfe_flags & NFE_40BIT_ADDR) 1129 ring->desc64 = desc; 1130 else 1131 ring->desc32 = desc; 1132 1133 /* map desc to device visible address space */ 1134 ctx.nfe_busaddr = 0; 1135 error = bus_dmamap_load(ring->rx_desc_tag, ring->rx_desc_map, desc, 1136 NFE_RX_RING_COUNT * descsize, nfe_dma_map_segs, &ctx, 0); 1137 if (error != 0) { 1138 device_printf(sc->nfe_dev, "could not load desc DMA map\n"); 1139 goto fail; 1140 } 1141 ring->physaddr = ctx.nfe_busaddr; 1142 1143 error = bus_dma_tag_create(sc->nfe_parent_tag, 1144 1, 0, /* alignment, boundary */ 1145 BUS_SPACE_MAXADDR, /* lowaddr */ 1146 BUS_SPACE_MAXADDR, /* highaddr */ 1147 NULL, NULL, /* filter, filterarg */ 1148 MCLBYTES, 1, /* maxsize, nsegments */ 1149 MCLBYTES, /* maxsegsize */ 1150 0, /* flags */ 1151 NULL, NULL, /* lockfunc, lockarg */ 1152 &ring->rx_data_tag); 1153 if (error != 0) { 1154 device_printf(sc->nfe_dev, "could not create Rx DMA tag\n"); 1155 goto fail; 1156 } 1157 1158 error = bus_dmamap_create(ring->rx_data_tag, 0, &ring->rx_spare_map); 1159 if (error != 0) { 1160 device_printf(sc->nfe_dev, 1161 "could not create Rx DMA spare map\n"); 1162 goto fail; 1163 } 1164 1165 /* 1166 * Pre-allocate Rx buffers and populate Rx ring. 1167 */ 1168 for (i = 0; i < NFE_RX_RING_COUNT; i++) { 1169 data = &sc->rxq.data[i]; 1170 data->rx_data_map = NULL; 1171 data->m = NULL; 1172 error = bus_dmamap_create(ring->rx_data_tag, 0, 1173 &data->rx_data_map); 1174 if (error != 0) { 1175 device_printf(sc->nfe_dev, 1176 "could not create Rx DMA map\n"); 1177 goto fail; 1178 } 1179 } 1180 1181 fail: 1182 return (error); 1183 } 1184 1185 static void 1186 nfe_alloc_jrx_ring(struct nfe_softc *sc, struct nfe_jrx_ring *ring) 1187 { 1188 struct nfe_dmamap_arg ctx; 1189 struct nfe_rx_data *data; 1190 void *desc; 1191 int i, error, descsize; 1192 1193 if ((sc->nfe_flags & NFE_JUMBO_SUP) == 0) 1194 return; 1195 if (jumbo_disable != 0) { 1196 device_printf(sc->nfe_dev, "disabling jumbo frame support\n"); 1197 sc->nfe_jumbo_disable = 1; 1198 return; 1199 } 1200 1201 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1202 desc = ring->jdesc64; 1203 descsize = sizeof (struct nfe_desc64); 1204 } else { 1205 desc = ring->jdesc32; 1206 descsize = sizeof (struct nfe_desc32); 1207 } 1208 1209 ring->jcur = ring->jnext = 0; 1210 1211 /* Create DMA tag for jumbo Rx ring. */ 1212 error = bus_dma_tag_create(sc->nfe_parent_tag, 1213 NFE_RING_ALIGN, 0, /* alignment, boundary */ 1214 BUS_SPACE_MAXADDR, /* lowaddr */ 1215 BUS_SPACE_MAXADDR, /* highaddr */ 1216 NULL, NULL, /* filter, filterarg */ 1217 NFE_JUMBO_RX_RING_COUNT * descsize, /* maxsize */ 1218 1, /* nsegments */ 1219 NFE_JUMBO_RX_RING_COUNT * descsize, /* maxsegsize */ 1220 0, /* flags */ 1221 NULL, NULL, /* lockfunc, lockarg */ 1222 &ring->jrx_desc_tag); 1223 if (error != 0) { 1224 device_printf(sc->nfe_dev, 1225 "could not create jumbo ring DMA tag\n"); 1226 goto fail; 1227 } 1228 1229 /* Create DMA tag for jumbo Rx buffers. */ 1230 error = bus_dma_tag_create(sc->nfe_parent_tag, 1231 1, 0, /* alignment, boundary */ 1232 BUS_SPACE_MAXADDR, /* lowaddr */ 1233 BUS_SPACE_MAXADDR, /* highaddr */ 1234 NULL, NULL, /* filter, filterarg */ 1235 MJUM9BYTES, /* maxsize */ 1236 1, /* nsegments */ 1237 MJUM9BYTES, /* maxsegsize */ 1238 0, /* flags */ 1239 NULL, NULL, /* lockfunc, lockarg */ 1240 &ring->jrx_data_tag); 1241 if (error != 0) { 1242 device_printf(sc->nfe_dev, 1243 "could not create jumbo Rx buffer DMA tag\n"); 1244 goto fail; 1245 } 1246 1247 /* Allocate DMA'able memory and load the DMA map for jumbo Rx ring. */ 1248 error = bus_dmamem_alloc(ring->jrx_desc_tag, &desc, BUS_DMA_WAITOK | 1249 BUS_DMA_COHERENT | BUS_DMA_ZERO, &ring->jrx_desc_map); 1250 if (error != 0) { 1251 device_printf(sc->nfe_dev, 1252 "could not allocate DMA'able memory for jumbo Rx ring\n"); 1253 goto fail; 1254 } 1255 if (sc->nfe_flags & NFE_40BIT_ADDR) 1256 ring->jdesc64 = desc; 1257 else 1258 ring->jdesc32 = desc; 1259 1260 ctx.nfe_busaddr = 0; 1261 error = bus_dmamap_load(ring->jrx_desc_tag, ring->jrx_desc_map, desc, 1262 NFE_JUMBO_RX_RING_COUNT * descsize, nfe_dma_map_segs, &ctx, 0); 1263 if (error != 0) { 1264 device_printf(sc->nfe_dev, 1265 "could not load DMA'able memory for jumbo Rx ring\n"); 1266 goto fail; 1267 } 1268 ring->jphysaddr = ctx.nfe_busaddr; 1269 1270 /* Create DMA maps for jumbo Rx buffers. */ 1271 error = bus_dmamap_create(ring->jrx_data_tag, 0, &ring->jrx_spare_map); 1272 if (error != 0) { 1273 device_printf(sc->nfe_dev, 1274 "could not create jumbo Rx DMA spare map\n"); 1275 goto fail; 1276 } 1277 1278 for (i = 0; i < NFE_JUMBO_RX_RING_COUNT; i++) { 1279 data = &sc->jrxq.jdata[i]; 1280 data->rx_data_map = NULL; 1281 data->m = NULL; 1282 error = bus_dmamap_create(ring->jrx_data_tag, 0, 1283 &data->rx_data_map); 1284 if (error != 0) { 1285 device_printf(sc->nfe_dev, 1286 "could not create jumbo Rx DMA map\n"); 1287 goto fail; 1288 } 1289 } 1290 1291 return; 1292 1293 fail: 1294 /* 1295 * Running without jumbo frame support is ok for most cases 1296 * so don't fail on creating dma tag/map for jumbo frame. 1297 */ 1298 nfe_free_jrx_ring(sc, ring); 1299 device_printf(sc->nfe_dev, "disabling jumbo frame support due to " 1300 "resource shortage\n"); 1301 sc->nfe_jumbo_disable = 1; 1302 } 1303 1304 static int 1305 nfe_init_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring) 1306 { 1307 void *desc; 1308 size_t descsize; 1309 int i; 1310 1311 ring->cur = ring->next = 0; 1312 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1313 desc = ring->desc64; 1314 descsize = sizeof (struct nfe_desc64); 1315 } else { 1316 desc = ring->desc32; 1317 descsize = sizeof (struct nfe_desc32); 1318 } 1319 bzero(desc, descsize * NFE_RX_RING_COUNT); 1320 for (i = 0; i < NFE_RX_RING_COUNT; i++) { 1321 if (nfe_newbuf(sc, i) != 0) 1322 return (ENOBUFS); 1323 } 1324 1325 bus_dmamap_sync(ring->rx_desc_tag, ring->rx_desc_map, 1326 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1327 1328 return (0); 1329 } 1330 1331 static int 1332 nfe_init_jrx_ring(struct nfe_softc *sc, struct nfe_jrx_ring *ring) 1333 { 1334 void *desc; 1335 size_t descsize; 1336 int i; 1337 1338 ring->jcur = ring->jnext = 0; 1339 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1340 desc = ring->jdesc64; 1341 descsize = sizeof (struct nfe_desc64); 1342 } else { 1343 desc = ring->jdesc32; 1344 descsize = sizeof (struct nfe_desc32); 1345 } 1346 bzero(desc, descsize * NFE_JUMBO_RX_RING_COUNT); 1347 for (i = 0; i < NFE_JUMBO_RX_RING_COUNT; i++) { 1348 if (nfe_jnewbuf(sc, i) != 0) 1349 return (ENOBUFS); 1350 } 1351 1352 bus_dmamap_sync(ring->jrx_desc_tag, ring->jrx_desc_map, 1353 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1354 1355 return (0); 1356 } 1357 1358 static void 1359 nfe_free_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring) 1360 { 1361 struct nfe_rx_data *data; 1362 void *desc; 1363 int i; 1364 1365 if (sc->nfe_flags & NFE_40BIT_ADDR) 1366 desc = ring->desc64; 1367 else 1368 desc = ring->desc32; 1369 1370 for (i = 0; i < NFE_RX_RING_COUNT; i++) { 1371 data = &ring->data[i]; 1372 if (data->rx_data_map != NULL) { 1373 bus_dmamap_destroy(ring->rx_data_tag, 1374 data->rx_data_map); 1375 data->rx_data_map = NULL; 1376 } 1377 if (data->m != NULL) { 1378 m_freem(data->m); 1379 data->m = NULL; 1380 } 1381 } 1382 if (ring->rx_data_tag != NULL) { 1383 if (ring->rx_spare_map != NULL) { 1384 bus_dmamap_destroy(ring->rx_data_tag, 1385 ring->rx_spare_map); 1386 ring->rx_spare_map = NULL; 1387 } 1388 bus_dma_tag_destroy(ring->rx_data_tag); 1389 ring->rx_data_tag = NULL; 1390 } 1391 1392 if (desc != NULL) { 1393 bus_dmamap_unload(ring->rx_desc_tag, ring->rx_desc_map); 1394 bus_dmamem_free(ring->rx_desc_tag, desc, ring->rx_desc_map); 1395 ring->desc64 = NULL; 1396 ring->desc32 = NULL; 1397 } 1398 if (ring->rx_desc_tag != NULL) { 1399 bus_dma_tag_destroy(ring->rx_desc_tag); 1400 ring->rx_desc_tag = NULL; 1401 } 1402 } 1403 1404 static void 1405 nfe_free_jrx_ring(struct nfe_softc *sc, struct nfe_jrx_ring *ring) 1406 { 1407 struct nfe_rx_data *data; 1408 void *desc; 1409 int i; 1410 1411 if ((sc->nfe_flags & NFE_JUMBO_SUP) == 0) 1412 return; 1413 1414 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1415 desc = ring->jdesc64; 1416 } else { 1417 desc = ring->jdesc32; 1418 } 1419 1420 for (i = 0; i < NFE_JUMBO_RX_RING_COUNT; i++) { 1421 data = &ring->jdata[i]; 1422 if (data->rx_data_map != NULL) { 1423 bus_dmamap_destroy(ring->jrx_data_tag, 1424 data->rx_data_map); 1425 data->rx_data_map = NULL; 1426 } 1427 if (data->m != NULL) { 1428 m_freem(data->m); 1429 data->m = NULL; 1430 } 1431 } 1432 if (ring->jrx_data_tag != NULL) { 1433 if (ring->jrx_spare_map != NULL) { 1434 bus_dmamap_destroy(ring->jrx_data_tag, 1435 ring->jrx_spare_map); 1436 ring->jrx_spare_map = NULL; 1437 } 1438 bus_dma_tag_destroy(ring->jrx_data_tag); 1439 ring->jrx_data_tag = NULL; 1440 } 1441 1442 if (desc != NULL) { 1443 bus_dmamap_unload(ring->jrx_desc_tag, ring->jrx_desc_map); 1444 bus_dmamem_free(ring->jrx_desc_tag, desc, ring->jrx_desc_map); 1445 ring->jdesc64 = NULL; 1446 ring->jdesc32 = NULL; 1447 } 1448 1449 if (ring->jrx_desc_tag != NULL) { 1450 bus_dma_tag_destroy(ring->jrx_desc_tag); 1451 ring->jrx_desc_tag = NULL; 1452 } 1453 } 1454 1455 static int 1456 nfe_alloc_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring) 1457 { 1458 struct nfe_dmamap_arg ctx; 1459 int i, error; 1460 void *desc; 1461 int descsize; 1462 1463 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1464 desc = ring->desc64; 1465 descsize = sizeof (struct nfe_desc64); 1466 } else { 1467 desc = ring->desc32; 1468 descsize = sizeof (struct nfe_desc32); 1469 } 1470 1471 ring->queued = 0; 1472 ring->cur = ring->next = 0; 1473 1474 error = bus_dma_tag_create(sc->nfe_parent_tag, 1475 NFE_RING_ALIGN, 0, /* alignment, boundary */ 1476 BUS_SPACE_MAXADDR, /* lowaddr */ 1477 BUS_SPACE_MAXADDR, /* highaddr */ 1478 NULL, NULL, /* filter, filterarg */ 1479 NFE_TX_RING_COUNT * descsize, 1, /* maxsize, nsegments */ 1480 NFE_TX_RING_COUNT * descsize, /* maxsegsize */ 1481 0, /* flags */ 1482 NULL, NULL, /* lockfunc, lockarg */ 1483 &ring->tx_desc_tag); 1484 if (error != 0) { 1485 device_printf(sc->nfe_dev, "could not create desc DMA tag\n"); 1486 goto fail; 1487 } 1488 1489 error = bus_dmamem_alloc(ring->tx_desc_tag, &desc, BUS_DMA_WAITOK | 1490 BUS_DMA_COHERENT | BUS_DMA_ZERO, &ring->tx_desc_map); 1491 if (error != 0) { 1492 device_printf(sc->nfe_dev, "could not create desc DMA map\n"); 1493 goto fail; 1494 } 1495 if (sc->nfe_flags & NFE_40BIT_ADDR) 1496 ring->desc64 = desc; 1497 else 1498 ring->desc32 = desc; 1499 1500 ctx.nfe_busaddr = 0; 1501 error = bus_dmamap_load(ring->tx_desc_tag, ring->tx_desc_map, desc, 1502 NFE_TX_RING_COUNT * descsize, nfe_dma_map_segs, &ctx, 0); 1503 if (error != 0) { 1504 device_printf(sc->nfe_dev, "could not load desc DMA map\n"); 1505 goto fail; 1506 } 1507 ring->physaddr = ctx.nfe_busaddr; 1508 1509 error = bus_dma_tag_create(sc->nfe_parent_tag, 1510 1, 0, 1511 BUS_SPACE_MAXADDR, 1512 BUS_SPACE_MAXADDR, 1513 NULL, NULL, 1514 NFE_TSO_MAXSIZE, 1515 NFE_MAX_SCATTER, 1516 NFE_TSO_MAXSGSIZE, 1517 0, 1518 NULL, NULL, 1519 &ring->tx_data_tag); 1520 if (error != 0) { 1521 device_printf(sc->nfe_dev, "could not create Tx DMA tag\n"); 1522 goto fail; 1523 } 1524 1525 for (i = 0; i < NFE_TX_RING_COUNT; i++) { 1526 error = bus_dmamap_create(ring->tx_data_tag, 0, 1527 &ring->data[i].tx_data_map); 1528 if (error != 0) { 1529 device_printf(sc->nfe_dev, 1530 "could not create Tx DMA map\n"); 1531 goto fail; 1532 } 1533 } 1534 1535 fail: 1536 return (error); 1537 } 1538 1539 static void 1540 nfe_init_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring) 1541 { 1542 void *desc; 1543 size_t descsize; 1544 1545 sc->nfe_force_tx = 0; 1546 ring->queued = 0; 1547 ring->cur = ring->next = 0; 1548 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1549 desc = ring->desc64; 1550 descsize = sizeof (struct nfe_desc64); 1551 } else { 1552 desc = ring->desc32; 1553 descsize = sizeof (struct nfe_desc32); 1554 } 1555 bzero(desc, descsize * NFE_TX_RING_COUNT); 1556 1557 bus_dmamap_sync(ring->tx_desc_tag, ring->tx_desc_map, 1558 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1559 } 1560 1561 static void 1562 nfe_free_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring) 1563 { 1564 struct nfe_tx_data *data; 1565 void *desc; 1566 int i; 1567 1568 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1569 desc = ring->desc64; 1570 } else { 1571 desc = ring->desc32; 1572 } 1573 1574 for (i = 0; i < NFE_TX_RING_COUNT; i++) { 1575 data = &ring->data[i]; 1576 1577 if (data->m != NULL) { 1578 bus_dmamap_sync(ring->tx_data_tag, data->tx_data_map, 1579 BUS_DMASYNC_POSTWRITE); 1580 bus_dmamap_unload(ring->tx_data_tag, data->tx_data_map); 1581 m_freem(data->m); 1582 data->m = NULL; 1583 } 1584 if (data->tx_data_map != NULL) { 1585 bus_dmamap_destroy(ring->tx_data_tag, 1586 data->tx_data_map); 1587 data->tx_data_map = NULL; 1588 } 1589 } 1590 1591 if (ring->tx_data_tag != NULL) { 1592 bus_dma_tag_destroy(ring->tx_data_tag); 1593 ring->tx_data_tag = NULL; 1594 } 1595 1596 if (desc != NULL) { 1597 bus_dmamap_sync(ring->tx_desc_tag, ring->tx_desc_map, 1598 BUS_DMASYNC_POSTWRITE); 1599 bus_dmamap_unload(ring->tx_desc_tag, ring->tx_desc_map); 1600 bus_dmamem_free(ring->tx_desc_tag, desc, ring->tx_desc_map); 1601 ring->desc64 = NULL; 1602 ring->desc32 = NULL; 1603 bus_dma_tag_destroy(ring->tx_desc_tag); 1604 ring->tx_desc_tag = NULL; 1605 } 1606 } 1607 1608 #ifdef DEVICE_POLLING 1609 static poll_handler_t nfe_poll; 1610 1611 static int 1612 nfe_poll(if_t ifp, enum poll_cmd cmd, int count) 1613 { 1614 struct nfe_softc *sc = if_getsoftc(ifp); 1615 uint32_t r; 1616 int rx_npkts = 0; 1617 1618 NFE_LOCK(sc); 1619 1620 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING)) { 1621 NFE_UNLOCK(sc); 1622 return (rx_npkts); 1623 } 1624 1625 if (sc->nfe_framesize > MCLBYTES - ETHER_HDR_LEN) 1626 rx_npkts = nfe_jrxeof(sc, count, &rx_npkts); 1627 else 1628 rx_npkts = nfe_rxeof(sc, count, &rx_npkts); 1629 nfe_txeof(sc); 1630 if (!if_sendq_empty(ifp)) 1631 nfe_start_locked(ifp); 1632 1633 if (cmd == POLL_AND_CHECK_STATUS) { 1634 if ((r = NFE_READ(sc, sc->nfe_irq_status)) == 0) { 1635 NFE_UNLOCK(sc); 1636 return (rx_npkts); 1637 } 1638 NFE_WRITE(sc, sc->nfe_irq_status, r); 1639 1640 if (r & NFE_IRQ_LINK) { 1641 NFE_READ(sc, NFE_PHY_STATUS); 1642 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 1643 DPRINTF(sc, "link state changed\n"); 1644 } 1645 } 1646 NFE_UNLOCK(sc); 1647 return (rx_npkts); 1648 } 1649 #endif /* DEVICE_POLLING */ 1650 1651 static void 1652 nfe_set_intr(struct nfe_softc *sc) 1653 { 1654 1655 if (sc->nfe_msi != 0) 1656 NFE_WRITE(sc, NFE_IRQ_MASK, NFE_IRQ_WANTED); 1657 } 1658 1659 /* In MSIX, a write to mask reegisters behaves as XOR. */ 1660 static __inline void 1661 nfe_enable_intr(struct nfe_softc *sc) 1662 { 1663 1664 if (sc->nfe_msix != 0) { 1665 /* XXX Should have a better way to enable interrupts! */ 1666 if (NFE_READ(sc, sc->nfe_irq_mask) == 0) 1667 NFE_WRITE(sc, sc->nfe_irq_mask, sc->nfe_intrs); 1668 } else 1669 NFE_WRITE(sc, sc->nfe_irq_mask, sc->nfe_intrs); 1670 } 1671 1672 static __inline void 1673 nfe_disable_intr(struct nfe_softc *sc) 1674 { 1675 1676 if (sc->nfe_msix != 0) { 1677 /* XXX Should have a better way to disable interrupts! */ 1678 if (NFE_READ(sc, sc->nfe_irq_mask) != 0) 1679 NFE_WRITE(sc, sc->nfe_irq_mask, sc->nfe_nointrs); 1680 } else 1681 NFE_WRITE(sc, sc->nfe_irq_mask, sc->nfe_nointrs); 1682 } 1683 1684 static int 1685 nfe_ioctl(if_t ifp, u_long cmd, caddr_t data) 1686 { 1687 struct nfe_softc *sc; 1688 struct ifreq *ifr; 1689 struct mii_data *mii; 1690 int error, init, mask; 1691 1692 sc = if_getsoftc(ifp); 1693 ifr = (struct ifreq *) data; 1694 error = 0; 1695 init = 0; 1696 switch (cmd) { 1697 case SIOCSIFMTU: 1698 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > NFE_JUMBO_MTU) 1699 error = EINVAL; 1700 else if (if_getmtu(ifp) != ifr->ifr_mtu) { 1701 if ((((sc->nfe_flags & NFE_JUMBO_SUP) == 0) || 1702 (sc->nfe_jumbo_disable != 0)) && 1703 ifr->ifr_mtu > ETHERMTU) 1704 error = EINVAL; 1705 else { 1706 NFE_LOCK(sc); 1707 if_setmtu(ifp, ifr->ifr_mtu); 1708 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING) { 1709 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 1710 nfe_init_locked(sc); 1711 } 1712 NFE_UNLOCK(sc); 1713 } 1714 } 1715 break; 1716 case SIOCSIFFLAGS: 1717 NFE_LOCK(sc); 1718 if (if_getflags(ifp) & IFF_UP) { 1719 /* 1720 * If only the PROMISC or ALLMULTI flag changes, then 1721 * don't do a full re-init of the chip, just update 1722 * the Rx filter. 1723 */ 1724 if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) && 1725 ((if_getflags(ifp) ^ sc->nfe_if_flags) & 1726 (IFF_ALLMULTI | IFF_PROMISC)) != 0) 1727 nfe_setmulti(sc); 1728 else 1729 nfe_init_locked(sc); 1730 } else { 1731 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING) 1732 nfe_stop(ifp); 1733 } 1734 sc->nfe_if_flags = if_getflags(ifp); 1735 NFE_UNLOCK(sc); 1736 error = 0; 1737 break; 1738 case SIOCADDMULTI: 1739 case SIOCDELMULTI: 1740 if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) { 1741 NFE_LOCK(sc); 1742 nfe_setmulti(sc); 1743 NFE_UNLOCK(sc); 1744 error = 0; 1745 } 1746 break; 1747 case SIOCSIFMEDIA: 1748 case SIOCGIFMEDIA: 1749 mii = device_get_softc(sc->nfe_miibus); 1750 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd); 1751 break; 1752 case SIOCSIFCAP: 1753 mask = ifr->ifr_reqcap ^ if_getcapenable(ifp); 1754 #ifdef DEVICE_POLLING 1755 if ((mask & IFCAP_POLLING) != 0) { 1756 if ((ifr->ifr_reqcap & IFCAP_POLLING) != 0) { 1757 error = ether_poll_register(nfe_poll, ifp); 1758 if (error) 1759 break; 1760 NFE_LOCK(sc); 1761 nfe_disable_intr(sc); 1762 if_setcapenablebit(ifp, IFCAP_POLLING, 0); 1763 NFE_UNLOCK(sc); 1764 } else { 1765 error = ether_poll_deregister(ifp); 1766 /* Enable interrupt even in error case */ 1767 NFE_LOCK(sc); 1768 nfe_enable_intr(sc); 1769 if_setcapenablebit(ifp, 0, IFCAP_POLLING); 1770 NFE_UNLOCK(sc); 1771 } 1772 } 1773 #endif /* DEVICE_POLLING */ 1774 if ((mask & IFCAP_WOL_MAGIC) != 0 && 1775 (if_getcapabilities(ifp) & IFCAP_WOL_MAGIC) != 0) 1776 if_togglecapenable(ifp, IFCAP_WOL_MAGIC); 1777 if ((mask & IFCAP_TXCSUM) != 0 && 1778 (if_getcapabilities(ifp) & IFCAP_TXCSUM) != 0) { 1779 if_togglecapenable(ifp, IFCAP_TXCSUM); 1780 if ((if_getcapenable(ifp) & IFCAP_TXCSUM) != 0) 1781 if_sethwassistbits(ifp, NFE_CSUM_FEATURES, 0); 1782 else 1783 if_sethwassistbits(ifp, 0, NFE_CSUM_FEATURES); 1784 } 1785 if ((mask & IFCAP_RXCSUM) != 0 && 1786 (if_getcapabilities(ifp) & IFCAP_RXCSUM) != 0) { 1787 if_togglecapenable(ifp, IFCAP_RXCSUM); 1788 init++; 1789 } 1790 if ((mask & IFCAP_TSO4) != 0 && 1791 (if_getcapabilities(ifp) & IFCAP_TSO4) != 0) { 1792 if_togglecapenable(ifp, IFCAP_TSO4); 1793 if ((IFCAP_TSO4 & if_getcapenable(ifp)) != 0) 1794 if_sethwassistbits(ifp, CSUM_TSO, 0); 1795 else 1796 if_sethwassistbits(ifp, 0, CSUM_TSO); 1797 } 1798 if ((mask & IFCAP_VLAN_HWTSO) != 0 && 1799 (if_getcapabilities(ifp) & IFCAP_VLAN_HWTSO) != 0) 1800 if_togglecapenable(ifp, IFCAP_VLAN_HWTSO); 1801 if ((mask & IFCAP_VLAN_HWTAGGING) != 0 && 1802 (if_getcapabilities(ifp) & IFCAP_VLAN_HWTAGGING) != 0) { 1803 if_togglecapenable(ifp, IFCAP_VLAN_HWTAGGING); 1804 if ((if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) == 0) 1805 if_setcapenablebit(ifp, 0, IFCAP_VLAN_HWTSO); 1806 init++; 1807 } 1808 /* 1809 * XXX 1810 * It seems that VLAN stripping requires Rx checksum offload. 1811 * Unfortunately FreeBSD has no way to disable only Rx side 1812 * VLAN stripping. So when we know Rx checksum offload is 1813 * disabled turn entire hardware VLAN assist off. 1814 */ 1815 if ((if_getcapenable(ifp) & IFCAP_RXCSUM) == 0) { 1816 if ((if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) != 0) 1817 init++; 1818 if_setcapenablebit(ifp, 0, 1819 (IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWTSO)); 1820 } 1821 if (init > 0 && (if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) { 1822 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 1823 nfe_init(sc); 1824 } 1825 if_vlancap(ifp); 1826 break; 1827 default: 1828 error = ether_ioctl(ifp, cmd, data); 1829 break; 1830 } 1831 1832 return (error); 1833 } 1834 1835 static int 1836 nfe_intr(void *arg) 1837 { 1838 struct nfe_softc *sc; 1839 uint32_t status; 1840 1841 sc = (struct nfe_softc *)arg; 1842 1843 status = NFE_READ(sc, sc->nfe_irq_status); 1844 if (status == 0 || status == 0xffffffff) 1845 return (FILTER_STRAY); 1846 nfe_disable_intr(sc); 1847 taskqueue_enqueue(sc->nfe_tq, &sc->nfe_int_task); 1848 1849 return (FILTER_HANDLED); 1850 } 1851 1852 static void 1853 nfe_int_task(void *arg, int pending) 1854 { 1855 struct nfe_softc *sc = arg; 1856 if_t ifp = sc->nfe_ifp; 1857 uint32_t r; 1858 int domore; 1859 1860 NFE_LOCK(sc); 1861 1862 if ((r = NFE_READ(sc, sc->nfe_irq_status)) == 0) { 1863 nfe_enable_intr(sc); 1864 NFE_UNLOCK(sc); 1865 return; /* not for us */ 1866 } 1867 NFE_WRITE(sc, sc->nfe_irq_status, r); 1868 1869 DPRINTFN(sc, 5, "nfe_intr: interrupt register %x\n", r); 1870 1871 #ifdef DEVICE_POLLING 1872 if (if_getcapenable(ifp) & IFCAP_POLLING) { 1873 NFE_UNLOCK(sc); 1874 return; 1875 } 1876 #endif 1877 1878 if (r & NFE_IRQ_LINK) { 1879 NFE_READ(sc, NFE_PHY_STATUS); 1880 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 1881 DPRINTF(sc, "link state changed\n"); 1882 } 1883 1884 if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0) { 1885 NFE_UNLOCK(sc); 1886 nfe_disable_intr(sc); 1887 return; 1888 } 1889 1890 domore = 0; 1891 /* check Rx ring */ 1892 if (sc->nfe_framesize > MCLBYTES - ETHER_HDR_LEN) 1893 domore = nfe_jrxeof(sc, sc->nfe_process_limit, NULL); 1894 else 1895 domore = nfe_rxeof(sc, sc->nfe_process_limit, NULL); 1896 /* check Tx ring */ 1897 nfe_txeof(sc); 1898 1899 if (!if_sendq_empty(ifp)) 1900 nfe_start_locked(ifp); 1901 1902 NFE_UNLOCK(sc); 1903 1904 if (domore || (NFE_READ(sc, sc->nfe_irq_status) != 0)) { 1905 taskqueue_enqueue(sc->nfe_tq, &sc->nfe_int_task); 1906 return; 1907 } 1908 1909 /* Reenable interrupts. */ 1910 nfe_enable_intr(sc); 1911 } 1912 1913 static __inline void 1914 nfe_discard_rxbuf(struct nfe_softc *sc, int idx) 1915 { 1916 struct nfe_desc32 *desc32; 1917 struct nfe_desc64 *desc64; 1918 struct nfe_rx_data *data; 1919 struct mbuf *m; 1920 1921 data = &sc->rxq.data[idx]; 1922 m = data->m; 1923 1924 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1925 desc64 = &sc->rxq.desc64[idx]; 1926 /* VLAN packet may have overwritten it. */ 1927 desc64->physaddr[0] = htole32(NFE_ADDR_HI(data->paddr)); 1928 desc64->physaddr[1] = htole32(NFE_ADDR_LO(data->paddr)); 1929 desc64->length = htole16(m->m_len); 1930 desc64->flags = htole16(NFE_RX_READY); 1931 } else { 1932 desc32 = &sc->rxq.desc32[idx]; 1933 desc32->length = htole16(m->m_len); 1934 desc32->flags = htole16(NFE_RX_READY); 1935 } 1936 } 1937 1938 static __inline void 1939 nfe_discard_jrxbuf(struct nfe_softc *sc, int idx) 1940 { 1941 struct nfe_desc32 *desc32; 1942 struct nfe_desc64 *desc64; 1943 struct nfe_rx_data *data; 1944 struct mbuf *m; 1945 1946 data = &sc->jrxq.jdata[idx]; 1947 m = data->m; 1948 1949 if (sc->nfe_flags & NFE_40BIT_ADDR) { 1950 desc64 = &sc->jrxq.jdesc64[idx]; 1951 /* VLAN packet may have overwritten it. */ 1952 desc64->physaddr[0] = htole32(NFE_ADDR_HI(data->paddr)); 1953 desc64->physaddr[1] = htole32(NFE_ADDR_LO(data->paddr)); 1954 desc64->length = htole16(m->m_len); 1955 desc64->flags = htole16(NFE_RX_READY); 1956 } else { 1957 desc32 = &sc->jrxq.jdesc32[idx]; 1958 desc32->length = htole16(m->m_len); 1959 desc32->flags = htole16(NFE_RX_READY); 1960 } 1961 } 1962 1963 static int 1964 nfe_newbuf(struct nfe_softc *sc, int idx) 1965 { 1966 struct nfe_rx_data *data; 1967 struct nfe_desc32 *desc32; 1968 struct nfe_desc64 *desc64; 1969 struct mbuf *m; 1970 bus_dma_segment_t segs[1]; 1971 bus_dmamap_t map; 1972 int nsegs; 1973 1974 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1975 if (m == NULL) 1976 return (ENOBUFS); 1977 1978 m->m_len = m->m_pkthdr.len = MCLBYTES; 1979 m_adj(m, ETHER_ALIGN); 1980 1981 if (bus_dmamap_load_mbuf_sg(sc->rxq.rx_data_tag, sc->rxq.rx_spare_map, 1982 m, segs, &nsegs, BUS_DMA_NOWAIT) != 0) { 1983 m_freem(m); 1984 return (ENOBUFS); 1985 } 1986 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 1987 1988 data = &sc->rxq.data[idx]; 1989 if (data->m != NULL) { 1990 bus_dmamap_sync(sc->rxq.rx_data_tag, data->rx_data_map, 1991 BUS_DMASYNC_POSTREAD); 1992 bus_dmamap_unload(sc->rxq.rx_data_tag, data->rx_data_map); 1993 } 1994 map = data->rx_data_map; 1995 data->rx_data_map = sc->rxq.rx_spare_map; 1996 sc->rxq.rx_spare_map = map; 1997 bus_dmamap_sync(sc->rxq.rx_data_tag, data->rx_data_map, 1998 BUS_DMASYNC_PREREAD); 1999 data->paddr = segs[0].ds_addr; 2000 data->m = m; 2001 /* update mapping address in h/w descriptor */ 2002 if (sc->nfe_flags & NFE_40BIT_ADDR) { 2003 desc64 = &sc->rxq.desc64[idx]; 2004 desc64->physaddr[0] = htole32(NFE_ADDR_HI(segs[0].ds_addr)); 2005 desc64->physaddr[1] = htole32(NFE_ADDR_LO(segs[0].ds_addr)); 2006 desc64->length = htole16(segs[0].ds_len); 2007 desc64->flags = htole16(NFE_RX_READY); 2008 } else { 2009 desc32 = &sc->rxq.desc32[idx]; 2010 desc32->physaddr = htole32(NFE_ADDR_LO(segs[0].ds_addr)); 2011 desc32->length = htole16(segs[0].ds_len); 2012 desc32->flags = htole16(NFE_RX_READY); 2013 } 2014 2015 return (0); 2016 } 2017 2018 static int 2019 nfe_jnewbuf(struct nfe_softc *sc, int idx) 2020 { 2021 struct nfe_rx_data *data; 2022 struct nfe_desc32 *desc32; 2023 struct nfe_desc64 *desc64; 2024 struct mbuf *m; 2025 bus_dma_segment_t segs[1]; 2026 bus_dmamap_t map; 2027 int nsegs; 2028 2029 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUM9BYTES); 2030 if (m == NULL) 2031 return (ENOBUFS); 2032 m->m_pkthdr.len = m->m_len = MJUM9BYTES; 2033 m_adj(m, ETHER_ALIGN); 2034 2035 if (bus_dmamap_load_mbuf_sg(sc->jrxq.jrx_data_tag, 2036 sc->jrxq.jrx_spare_map, m, segs, &nsegs, BUS_DMA_NOWAIT) != 0) { 2037 m_freem(m); 2038 return (ENOBUFS); 2039 } 2040 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 2041 2042 data = &sc->jrxq.jdata[idx]; 2043 if (data->m != NULL) { 2044 bus_dmamap_sync(sc->jrxq.jrx_data_tag, data->rx_data_map, 2045 BUS_DMASYNC_POSTREAD); 2046 bus_dmamap_unload(sc->jrxq.jrx_data_tag, data->rx_data_map); 2047 } 2048 map = data->rx_data_map; 2049 data->rx_data_map = sc->jrxq.jrx_spare_map; 2050 sc->jrxq.jrx_spare_map = map; 2051 bus_dmamap_sync(sc->jrxq.jrx_data_tag, data->rx_data_map, 2052 BUS_DMASYNC_PREREAD); 2053 data->paddr = segs[0].ds_addr; 2054 data->m = m; 2055 /* update mapping address in h/w descriptor */ 2056 if (sc->nfe_flags & NFE_40BIT_ADDR) { 2057 desc64 = &sc->jrxq.jdesc64[idx]; 2058 desc64->physaddr[0] = htole32(NFE_ADDR_HI(segs[0].ds_addr)); 2059 desc64->physaddr[1] = htole32(NFE_ADDR_LO(segs[0].ds_addr)); 2060 desc64->length = htole16(segs[0].ds_len); 2061 desc64->flags = htole16(NFE_RX_READY); 2062 } else { 2063 desc32 = &sc->jrxq.jdesc32[idx]; 2064 desc32->physaddr = htole32(NFE_ADDR_LO(segs[0].ds_addr)); 2065 desc32->length = htole16(segs[0].ds_len); 2066 desc32->flags = htole16(NFE_RX_READY); 2067 } 2068 2069 return (0); 2070 } 2071 2072 static int 2073 nfe_rxeof(struct nfe_softc *sc, int count, int *rx_npktsp) 2074 { 2075 if_t ifp = sc->nfe_ifp; 2076 struct nfe_desc32 *desc32; 2077 struct nfe_desc64 *desc64; 2078 struct nfe_rx_data *data; 2079 struct mbuf *m; 2080 uint16_t flags; 2081 int len, prog, rx_npkts; 2082 uint32_t vtag = 0; 2083 2084 rx_npkts = 0; 2085 NFE_LOCK_ASSERT(sc); 2086 2087 bus_dmamap_sync(sc->rxq.rx_desc_tag, sc->rxq.rx_desc_map, 2088 BUS_DMASYNC_POSTREAD); 2089 2090 for (prog = 0;;NFE_INC(sc->rxq.cur, NFE_RX_RING_COUNT), vtag = 0) { 2091 if (count <= 0) 2092 break; 2093 count--; 2094 2095 data = &sc->rxq.data[sc->rxq.cur]; 2096 2097 if (sc->nfe_flags & NFE_40BIT_ADDR) { 2098 desc64 = &sc->rxq.desc64[sc->rxq.cur]; 2099 vtag = le32toh(desc64->physaddr[1]); 2100 flags = le16toh(desc64->flags); 2101 len = le16toh(desc64->length) & NFE_RX_LEN_MASK; 2102 } else { 2103 desc32 = &sc->rxq.desc32[sc->rxq.cur]; 2104 flags = le16toh(desc32->flags); 2105 len = le16toh(desc32->length) & NFE_RX_LEN_MASK; 2106 } 2107 2108 if (flags & NFE_RX_READY) 2109 break; 2110 prog++; 2111 if ((sc->nfe_flags & (NFE_JUMBO_SUP | NFE_40BIT_ADDR)) == 0) { 2112 if (!(flags & NFE_RX_VALID_V1)) { 2113 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2114 nfe_discard_rxbuf(sc, sc->rxq.cur); 2115 continue; 2116 } 2117 if ((flags & NFE_RX_FIXME_V1) == NFE_RX_FIXME_V1) { 2118 flags &= ~NFE_RX_ERROR; 2119 len--; /* fix buffer length */ 2120 } 2121 } else { 2122 if (!(flags & NFE_RX_VALID_V2)) { 2123 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2124 nfe_discard_rxbuf(sc, sc->rxq.cur); 2125 continue; 2126 } 2127 2128 if ((flags & NFE_RX_FIXME_V2) == NFE_RX_FIXME_V2) { 2129 flags &= ~NFE_RX_ERROR; 2130 len--; /* fix buffer length */ 2131 } 2132 } 2133 2134 if (flags & NFE_RX_ERROR) { 2135 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2136 nfe_discard_rxbuf(sc, sc->rxq.cur); 2137 continue; 2138 } 2139 2140 m = data->m; 2141 if (nfe_newbuf(sc, sc->rxq.cur) != 0) { 2142 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2143 nfe_discard_rxbuf(sc, sc->rxq.cur); 2144 continue; 2145 } 2146 2147 if ((vtag & NFE_RX_VTAG) != 0 && 2148 (if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) != 0) { 2149 m->m_pkthdr.ether_vtag = vtag & 0xffff; 2150 m->m_flags |= M_VLANTAG; 2151 } 2152 2153 m->m_pkthdr.len = m->m_len = len; 2154 m->m_pkthdr.rcvif = ifp; 2155 2156 if ((if_getcapenable(ifp) & IFCAP_RXCSUM) != 0) { 2157 if ((flags & NFE_RX_IP_CSUMOK) != 0) { 2158 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; 2159 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2160 if ((flags & NFE_RX_TCP_CSUMOK) != 0 || 2161 (flags & NFE_RX_UDP_CSUMOK) != 0) { 2162 m->m_pkthdr.csum_flags |= 2163 CSUM_DATA_VALID | CSUM_PSEUDO_HDR; 2164 m->m_pkthdr.csum_data = 0xffff; 2165 } 2166 } 2167 } 2168 2169 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 2170 2171 NFE_UNLOCK(sc); 2172 if_input(ifp, m); 2173 NFE_LOCK(sc); 2174 rx_npkts++; 2175 } 2176 2177 if (prog > 0) 2178 bus_dmamap_sync(sc->rxq.rx_desc_tag, sc->rxq.rx_desc_map, 2179 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2180 2181 if (rx_npktsp != NULL) 2182 *rx_npktsp = rx_npkts; 2183 return (count > 0 ? 0 : EAGAIN); 2184 } 2185 2186 static int 2187 nfe_jrxeof(struct nfe_softc *sc, int count, int *rx_npktsp) 2188 { 2189 if_t ifp = sc->nfe_ifp; 2190 struct nfe_desc32 *desc32; 2191 struct nfe_desc64 *desc64; 2192 struct nfe_rx_data *data; 2193 struct mbuf *m; 2194 uint16_t flags; 2195 int len, prog, rx_npkts; 2196 uint32_t vtag = 0; 2197 2198 rx_npkts = 0; 2199 NFE_LOCK_ASSERT(sc); 2200 2201 bus_dmamap_sync(sc->jrxq.jrx_desc_tag, sc->jrxq.jrx_desc_map, 2202 BUS_DMASYNC_POSTREAD); 2203 2204 for (prog = 0;;NFE_INC(sc->jrxq.jcur, NFE_JUMBO_RX_RING_COUNT), 2205 vtag = 0) { 2206 if (count <= 0) 2207 break; 2208 count--; 2209 2210 data = &sc->jrxq.jdata[sc->jrxq.jcur]; 2211 2212 if (sc->nfe_flags & NFE_40BIT_ADDR) { 2213 desc64 = &sc->jrxq.jdesc64[sc->jrxq.jcur]; 2214 vtag = le32toh(desc64->physaddr[1]); 2215 flags = le16toh(desc64->flags); 2216 len = le16toh(desc64->length) & NFE_RX_LEN_MASK; 2217 } else { 2218 desc32 = &sc->jrxq.jdesc32[sc->jrxq.jcur]; 2219 flags = le16toh(desc32->flags); 2220 len = le16toh(desc32->length) & NFE_RX_LEN_MASK; 2221 } 2222 2223 if (flags & NFE_RX_READY) 2224 break; 2225 prog++; 2226 if ((sc->nfe_flags & (NFE_JUMBO_SUP | NFE_40BIT_ADDR)) == 0) { 2227 if (!(flags & NFE_RX_VALID_V1)) { 2228 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2229 nfe_discard_jrxbuf(sc, sc->jrxq.jcur); 2230 continue; 2231 } 2232 if ((flags & NFE_RX_FIXME_V1) == NFE_RX_FIXME_V1) { 2233 flags &= ~NFE_RX_ERROR; 2234 len--; /* fix buffer length */ 2235 } 2236 } else { 2237 if (!(flags & NFE_RX_VALID_V2)) { 2238 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2239 nfe_discard_jrxbuf(sc, sc->jrxq.jcur); 2240 continue; 2241 } 2242 2243 if ((flags & NFE_RX_FIXME_V2) == NFE_RX_FIXME_V2) { 2244 flags &= ~NFE_RX_ERROR; 2245 len--; /* fix buffer length */ 2246 } 2247 } 2248 2249 if (flags & NFE_RX_ERROR) { 2250 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2251 nfe_discard_jrxbuf(sc, sc->jrxq.jcur); 2252 continue; 2253 } 2254 2255 m = data->m; 2256 if (nfe_jnewbuf(sc, sc->jrxq.jcur) != 0) { 2257 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2258 nfe_discard_jrxbuf(sc, sc->jrxq.jcur); 2259 continue; 2260 } 2261 2262 if ((vtag & NFE_RX_VTAG) != 0 && 2263 (if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) != 0) { 2264 m->m_pkthdr.ether_vtag = vtag & 0xffff; 2265 m->m_flags |= M_VLANTAG; 2266 } 2267 2268 m->m_pkthdr.len = m->m_len = len; 2269 m->m_pkthdr.rcvif = ifp; 2270 2271 if ((if_getcapenable(ifp) & IFCAP_RXCSUM) != 0) { 2272 if ((flags & NFE_RX_IP_CSUMOK) != 0) { 2273 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; 2274 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2275 if ((flags & NFE_RX_TCP_CSUMOK) != 0 || 2276 (flags & NFE_RX_UDP_CSUMOK) != 0) { 2277 m->m_pkthdr.csum_flags |= 2278 CSUM_DATA_VALID | CSUM_PSEUDO_HDR; 2279 m->m_pkthdr.csum_data = 0xffff; 2280 } 2281 } 2282 } 2283 2284 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 2285 2286 NFE_UNLOCK(sc); 2287 if_input(ifp, m); 2288 NFE_LOCK(sc); 2289 rx_npkts++; 2290 } 2291 2292 if (prog > 0) 2293 bus_dmamap_sync(sc->jrxq.jrx_desc_tag, sc->jrxq.jrx_desc_map, 2294 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2295 2296 if (rx_npktsp != NULL) 2297 *rx_npktsp = rx_npkts; 2298 return (count > 0 ? 0 : EAGAIN); 2299 } 2300 2301 static void 2302 nfe_txeof(struct nfe_softc *sc) 2303 { 2304 if_t ifp = sc->nfe_ifp; 2305 struct nfe_desc32 *desc32; 2306 struct nfe_desc64 *desc64; 2307 struct nfe_tx_data *data = NULL; 2308 uint16_t flags; 2309 int cons, prog; 2310 2311 NFE_LOCK_ASSERT(sc); 2312 2313 bus_dmamap_sync(sc->txq.tx_desc_tag, sc->txq.tx_desc_map, 2314 BUS_DMASYNC_POSTREAD); 2315 2316 prog = 0; 2317 for (cons = sc->txq.next; cons != sc->txq.cur; 2318 NFE_INC(cons, NFE_TX_RING_COUNT)) { 2319 if (sc->nfe_flags & NFE_40BIT_ADDR) { 2320 desc64 = &sc->txq.desc64[cons]; 2321 flags = le16toh(desc64->flags); 2322 } else { 2323 desc32 = &sc->txq.desc32[cons]; 2324 flags = le16toh(desc32->flags); 2325 } 2326 2327 if (flags & NFE_TX_VALID) 2328 break; 2329 2330 prog++; 2331 sc->txq.queued--; 2332 data = &sc->txq.data[cons]; 2333 2334 if ((sc->nfe_flags & (NFE_JUMBO_SUP | NFE_40BIT_ADDR)) == 0) { 2335 if ((flags & NFE_TX_LASTFRAG_V1) == 0) 2336 continue; 2337 if ((flags & NFE_TX_ERROR_V1) != 0) { 2338 device_printf(sc->nfe_dev, 2339 "tx v1 error 0x%4b\n", flags, NFE_V1_TXERR); 2340 2341 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 2342 } else 2343 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 2344 } else { 2345 if ((flags & NFE_TX_LASTFRAG_V2) == 0) 2346 continue; 2347 if ((flags & NFE_TX_ERROR_V2) != 0) { 2348 device_printf(sc->nfe_dev, 2349 "tx v2 error 0x%4b\n", flags, NFE_V2_TXERR); 2350 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 2351 } else 2352 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 2353 } 2354 2355 /* last fragment of the mbuf chain transmitted */ 2356 KASSERT(data->m != NULL, ("%s: freeing NULL mbuf!", __func__)); 2357 bus_dmamap_sync(sc->txq.tx_data_tag, data->tx_data_map, 2358 BUS_DMASYNC_POSTWRITE); 2359 bus_dmamap_unload(sc->txq.tx_data_tag, data->tx_data_map); 2360 m_freem(data->m); 2361 data->m = NULL; 2362 } 2363 2364 if (prog > 0) { 2365 sc->nfe_force_tx = 0; 2366 sc->txq.next = cons; 2367 if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE); 2368 if (sc->txq.queued == 0) 2369 sc->nfe_watchdog_timer = 0; 2370 } 2371 } 2372 2373 static int 2374 nfe_encap(struct nfe_softc *sc, struct mbuf **m_head) 2375 { 2376 struct nfe_desc32 *desc32 = NULL; 2377 struct nfe_desc64 *desc64 = NULL; 2378 bus_dmamap_t map; 2379 bus_dma_segment_t segs[NFE_MAX_SCATTER]; 2380 int error, i, nsegs, prod, si; 2381 uint32_t tsosegsz; 2382 uint16_t cflags, flags; 2383 struct mbuf *m; 2384 2385 prod = si = sc->txq.cur; 2386 map = sc->txq.data[prod].tx_data_map; 2387 2388 error = bus_dmamap_load_mbuf_sg(sc->txq.tx_data_tag, map, *m_head, segs, 2389 &nsegs, BUS_DMA_NOWAIT); 2390 if (error == EFBIG) { 2391 m = m_collapse(*m_head, M_NOWAIT, NFE_MAX_SCATTER); 2392 if (m == NULL) { 2393 m_freem(*m_head); 2394 *m_head = NULL; 2395 return (ENOBUFS); 2396 } 2397 *m_head = m; 2398 error = bus_dmamap_load_mbuf_sg(sc->txq.tx_data_tag, map, 2399 *m_head, segs, &nsegs, BUS_DMA_NOWAIT); 2400 if (error != 0) { 2401 m_freem(*m_head); 2402 *m_head = NULL; 2403 return (ENOBUFS); 2404 } 2405 } else if (error != 0) 2406 return (error); 2407 if (nsegs == 0) { 2408 m_freem(*m_head); 2409 *m_head = NULL; 2410 return (EIO); 2411 } 2412 2413 if (sc->txq.queued + nsegs >= NFE_TX_RING_COUNT - 2) { 2414 bus_dmamap_unload(sc->txq.tx_data_tag, map); 2415 return (ENOBUFS); 2416 } 2417 2418 m = *m_head; 2419 cflags = flags = 0; 2420 tsosegsz = 0; 2421 if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 2422 tsosegsz = (uint32_t)m->m_pkthdr.tso_segsz << 2423 NFE_TX_TSO_SHIFT; 2424 cflags &= ~(NFE_TX_IP_CSUM | NFE_TX_TCP_UDP_CSUM); 2425 cflags |= NFE_TX_TSO; 2426 } else if ((m->m_pkthdr.csum_flags & NFE_CSUM_FEATURES) != 0) { 2427 if ((m->m_pkthdr.csum_flags & CSUM_IP) != 0) 2428 cflags |= NFE_TX_IP_CSUM; 2429 if ((m->m_pkthdr.csum_flags & CSUM_TCP) != 0) 2430 cflags |= NFE_TX_TCP_UDP_CSUM; 2431 if ((m->m_pkthdr.csum_flags & CSUM_UDP) != 0) 2432 cflags |= NFE_TX_TCP_UDP_CSUM; 2433 } 2434 2435 for (i = 0; i < nsegs; i++) { 2436 if (sc->nfe_flags & NFE_40BIT_ADDR) { 2437 desc64 = &sc->txq.desc64[prod]; 2438 desc64->physaddr[0] = 2439 htole32(NFE_ADDR_HI(segs[i].ds_addr)); 2440 desc64->physaddr[1] = 2441 htole32(NFE_ADDR_LO(segs[i].ds_addr)); 2442 desc64->vtag = 0; 2443 desc64->length = htole16(segs[i].ds_len - 1); 2444 desc64->flags = htole16(flags); 2445 } else { 2446 desc32 = &sc->txq.desc32[prod]; 2447 desc32->physaddr = 2448 htole32(NFE_ADDR_LO(segs[i].ds_addr)); 2449 desc32->length = htole16(segs[i].ds_len - 1); 2450 desc32->flags = htole16(flags); 2451 } 2452 2453 /* 2454 * Setting of the valid bit in the first descriptor is 2455 * deferred until the whole chain is fully setup. 2456 */ 2457 flags |= NFE_TX_VALID; 2458 2459 sc->txq.queued++; 2460 NFE_INC(prod, NFE_TX_RING_COUNT); 2461 } 2462 2463 /* 2464 * the whole mbuf chain has been DMA mapped, fix last/first descriptor. 2465 * csum flags, vtag and TSO belong to the first fragment only. 2466 */ 2467 if (sc->nfe_flags & NFE_40BIT_ADDR) { 2468 desc64->flags |= htole16(NFE_TX_LASTFRAG_V2); 2469 desc64 = &sc->txq.desc64[si]; 2470 if ((m->m_flags & M_VLANTAG) != 0) 2471 desc64->vtag = htole32(NFE_TX_VTAG | 2472 m->m_pkthdr.ether_vtag); 2473 if (tsosegsz != 0) { 2474 /* 2475 * XXX 2476 * The following indicates the descriptor element 2477 * is a 32bit quantity. 2478 */ 2479 desc64->length |= htole16((uint16_t)tsosegsz); 2480 desc64->flags |= htole16(tsosegsz >> 16); 2481 } 2482 /* 2483 * finally, set the valid/checksum/TSO bit in the first 2484 * descriptor. 2485 */ 2486 desc64->flags |= htole16(NFE_TX_VALID | cflags); 2487 } else { 2488 if (sc->nfe_flags & NFE_JUMBO_SUP) 2489 desc32->flags |= htole16(NFE_TX_LASTFRAG_V2); 2490 else 2491 desc32->flags |= htole16(NFE_TX_LASTFRAG_V1); 2492 desc32 = &sc->txq.desc32[si]; 2493 if (tsosegsz != 0) { 2494 /* 2495 * XXX 2496 * The following indicates the descriptor element 2497 * is a 32bit quantity. 2498 */ 2499 desc32->length |= htole16((uint16_t)tsosegsz); 2500 desc32->flags |= htole16(tsosegsz >> 16); 2501 } 2502 /* 2503 * finally, set the valid/checksum/TSO bit in the first 2504 * descriptor. 2505 */ 2506 desc32->flags |= htole16(NFE_TX_VALID | cflags); 2507 } 2508 2509 sc->txq.cur = prod; 2510 prod = (prod + NFE_TX_RING_COUNT - 1) % NFE_TX_RING_COUNT; 2511 sc->txq.data[si].tx_data_map = sc->txq.data[prod].tx_data_map; 2512 sc->txq.data[prod].tx_data_map = map; 2513 sc->txq.data[prod].m = m; 2514 2515 bus_dmamap_sync(sc->txq.tx_data_tag, map, BUS_DMASYNC_PREWRITE); 2516 2517 return (0); 2518 } 2519 2520 struct nfe_hash_maddr_ctx { 2521 uint8_t addr[ETHER_ADDR_LEN]; 2522 uint8_t mask[ETHER_ADDR_LEN]; 2523 }; 2524 2525 static u_int 2526 nfe_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 2527 { 2528 struct nfe_hash_maddr_ctx *ctx = arg; 2529 uint8_t *addrp, mcaddr; 2530 int j; 2531 2532 addrp = LLADDR(sdl); 2533 for (j = 0; j < ETHER_ADDR_LEN; j++) { 2534 mcaddr = addrp[j]; 2535 ctx->addr[j] &= mcaddr; 2536 ctx->mask[j] &= ~mcaddr; 2537 } 2538 2539 return (1); 2540 } 2541 2542 static void 2543 nfe_setmulti(struct nfe_softc *sc) 2544 { 2545 if_t ifp = sc->nfe_ifp; 2546 struct nfe_hash_maddr_ctx ctx; 2547 uint32_t filter; 2548 uint8_t etherbroadcastaddr[ETHER_ADDR_LEN] = { 2549 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 2550 }; 2551 int i; 2552 2553 NFE_LOCK_ASSERT(sc); 2554 2555 if ((if_getflags(ifp) & (IFF_ALLMULTI | IFF_PROMISC)) != 0) { 2556 bzero(ctx.addr, ETHER_ADDR_LEN); 2557 bzero(ctx.mask, ETHER_ADDR_LEN); 2558 goto done; 2559 } 2560 2561 bcopy(etherbroadcastaddr, ctx.addr, ETHER_ADDR_LEN); 2562 bcopy(etherbroadcastaddr, ctx.mask, ETHER_ADDR_LEN); 2563 2564 if_foreach_llmaddr(ifp, nfe_hash_maddr, &ctx); 2565 2566 for (i = 0; i < ETHER_ADDR_LEN; i++) { 2567 ctx.mask[i] |= ctx.addr[i]; 2568 } 2569 2570 done: 2571 ctx.addr[0] |= 0x01; /* make sure multicast bit is set */ 2572 2573 NFE_WRITE(sc, NFE_MULTIADDR_HI, ctx.addr[3] << 24 | ctx.addr[2] << 16 | 2574 ctx.addr[1] << 8 | ctx.addr[0]); 2575 NFE_WRITE(sc, NFE_MULTIADDR_LO, 2576 ctx.addr[5] << 8 | ctx.addr[4]); 2577 NFE_WRITE(sc, NFE_MULTIMASK_HI, ctx.mask[3] << 24 | ctx.mask[2] << 16 | 2578 ctx.mask[1] << 8 | ctx.mask[0]); 2579 NFE_WRITE(sc, NFE_MULTIMASK_LO, 2580 ctx.mask[5] << 8 | ctx.mask[4]); 2581 2582 filter = NFE_READ(sc, NFE_RXFILTER); 2583 filter &= NFE_PFF_RX_PAUSE; 2584 filter |= NFE_RXFILTER_MAGIC; 2585 filter |= (if_getflags(ifp) & IFF_PROMISC) ? NFE_PFF_PROMISC : NFE_PFF_U2M; 2586 NFE_WRITE(sc, NFE_RXFILTER, filter); 2587 } 2588 2589 static void 2590 nfe_start(if_t ifp) 2591 { 2592 struct nfe_softc *sc = if_getsoftc(ifp); 2593 2594 NFE_LOCK(sc); 2595 nfe_start_locked(ifp); 2596 NFE_UNLOCK(sc); 2597 } 2598 2599 static void 2600 nfe_start_locked(if_t ifp) 2601 { 2602 struct nfe_softc *sc = if_getsoftc(ifp); 2603 struct mbuf *m0; 2604 int enq = 0; 2605 2606 NFE_LOCK_ASSERT(sc); 2607 2608 if ((if_getdrvflags(ifp) & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 2609 IFF_DRV_RUNNING || sc->nfe_link == 0) 2610 return; 2611 2612 while (!if_sendq_empty(ifp)) { 2613 m0 = if_dequeue(ifp); 2614 2615 if (m0 == NULL) 2616 break; 2617 2618 if (nfe_encap(sc, &m0) != 0) { 2619 if (m0 == NULL) 2620 break; 2621 if_sendq_prepend(ifp, m0); 2622 if_setdrvflagbits(ifp, IFF_DRV_OACTIVE, 0); 2623 break; 2624 } 2625 enq++; 2626 if_etherbpfmtap(ifp, m0); 2627 } 2628 2629 if (enq > 0) { 2630 bus_dmamap_sync(sc->txq.tx_desc_tag, sc->txq.tx_desc_map, 2631 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2632 2633 /* kick Tx */ 2634 NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_KICKTX | sc->rxtxctl); 2635 2636 /* 2637 * Set a timeout in case the chip goes out to lunch. 2638 */ 2639 sc->nfe_watchdog_timer = 5; 2640 } 2641 } 2642 2643 static void 2644 nfe_watchdog(if_t ifp) 2645 { 2646 struct nfe_softc *sc = if_getsoftc(ifp); 2647 2648 if (sc->nfe_watchdog_timer == 0 || --sc->nfe_watchdog_timer) 2649 return; 2650 2651 /* Check if we've lost Tx completion interrupt. */ 2652 nfe_txeof(sc); 2653 if (sc->txq.queued == 0) { 2654 if_printf(ifp, "watchdog timeout (missed Tx interrupts) " 2655 "-- recovering\n"); 2656 if (!if_sendq_empty(ifp)) 2657 nfe_start_locked(ifp); 2658 return; 2659 } 2660 /* Check if we've lost start Tx command. */ 2661 sc->nfe_force_tx++; 2662 if (sc->nfe_force_tx <= 3) { 2663 /* 2664 * If this is the case for watchdog timeout, the following 2665 * code should go to nfe_txeof(). 2666 */ 2667 NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_KICKTX | sc->rxtxctl); 2668 return; 2669 } 2670 sc->nfe_force_tx = 0; 2671 2672 if_printf(ifp, "watchdog timeout\n"); 2673 2674 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 2675 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 2676 nfe_init_locked(sc); 2677 } 2678 2679 static void 2680 nfe_init(void *xsc) 2681 { 2682 struct nfe_softc *sc = xsc; 2683 2684 NFE_LOCK(sc); 2685 nfe_init_locked(sc); 2686 NFE_UNLOCK(sc); 2687 } 2688 2689 static void 2690 nfe_init_locked(void *xsc) 2691 { 2692 struct nfe_softc *sc = xsc; 2693 if_t ifp = sc->nfe_ifp; 2694 struct mii_data *mii; 2695 uint32_t val; 2696 int error; 2697 2698 NFE_LOCK_ASSERT(sc); 2699 2700 mii = device_get_softc(sc->nfe_miibus); 2701 2702 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING) 2703 return; 2704 2705 nfe_stop(ifp); 2706 2707 sc->nfe_framesize = if_getmtu(ifp) + NFE_RX_HEADERS; 2708 2709 nfe_init_tx_ring(sc, &sc->txq); 2710 if (sc->nfe_framesize > (MCLBYTES - ETHER_HDR_LEN)) 2711 error = nfe_init_jrx_ring(sc, &sc->jrxq); 2712 else 2713 error = nfe_init_rx_ring(sc, &sc->rxq); 2714 if (error != 0) { 2715 device_printf(sc->nfe_dev, 2716 "initialization failed: no memory for rx buffers\n"); 2717 nfe_stop(ifp); 2718 return; 2719 } 2720 2721 val = 0; 2722 if ((sc->nfe_flags & NFE_CORRECT_MACADDR) != 0) 2723 val |= NFE_MAC_ADDR_INORDER; 2724 NFE_WRITE(sc, NFE_TX_UNK, val); 2725 NFE_WRITE(sc, NFE_STATUS, 0); 2726 2727 if ((sc->nfe_flags & NFE_TX_FLOW_CTRL) != 0) 2728 NFE_WRITE(sc, NFE_TX_PAUSE_FRAME, NFE_TX_PAUSE_FRAME_DISABLE); 2729 2730 sc->rxtxctl = NFE_RXTX_BIT2; 2731 if (sc->nfe_flags & NFE_40BIT_ADDR) 2732 sc->rxtxctl |= NFE_RXTX_V3MAGIC; 2733 else if (sc->nfe_flags & NFE_JUMBO_SUP) 2734 sc->rxtxctl |= NFE_RXTX_V2MAGIC; 2735 2736 if ((if_getcapenable(ifp) & IFCAP_RXCSUM) != 0) 2737 sc->rxtxctl |= NFE_RXTX_RXCSUM; 2738 if ((if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) != 0) 2739 sc->rxtxctl |= NFE_RXTX_VTAG_INSERT | NFE_RXTX_VTAG_STRIP; 2740 2741 NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_RESET | sc->rxtxctl); 2742 DELAY(10); 2743 NFE_WRITE(sc, NFE_RXTX_CTL, sc->rxtxctl); 2744 2745 if ((if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) != 0) 2746 NFE_WRITE(sc, NFE_VTAG_CTL, NFE_VTAG_ENABLE); 2747 else 2748 NFE_WRITE(sc, NFE_VTAG_CTL, 0); 2749 2750 NFE_WRITE(sc, NFE_SETUP_R6, 0); 2751 2752 /* set MAC address */ 2753 nfe_set_macaddr(sc, if_getlladdr(ifp)); 2754 2755 /* tell MAC where rings are in memory */ 2756 if (sc->nfe_framesize > MCLBYTES - ETHER_HDR_LEN) { 2757 NFE_WRITE(sc, NFE_RX_RING_ADDR_HI, 2758 NFE_ADDR_HI(sc->jrxq.jphysaddr)); 2759 NFE_WRITE(sc, NFE_RX_RING_ADDR_LO, 2760 NFE_ADDR_LO(sc->jrxq.jphysaddr)); 2761 } else { 2762 NFE_WRITE(sc, NFE_RX_RING_ADDR_HI, 2763 NFE_ADDR_HI(sc->rxq.physaddr)); 2764 NFE_WRITE(sc, NFE_RX_RING_ADDR_LO, 2765 NFE_ADDR_LO(sc->rxq.physaddr)); 2766 } 2767 NFE_WRITE(sc, NFE_TX_RING_ADDR_HI, NFE_ADDR_HI(sc->txq.physaddr)); 2768 NFE_WRITE(sc, NFE_TX_RING_ADDR_LO, NFE_ADDR_LO(sc->txq.physaddr)); 2769 2770 NFE_WRITE(sc, NFE_RING_SIZE, 2771 (NFE_RX_RING_COUNT - 1) << 16 | 2772 (NFE_TX_RING_COUNT - 1)); 2773 2774 NFE_WRITE(sc, NFE_RXBUFSZ, sc->nfe_framesize); 2775 2776 /* force MAC to wakeup */ 2777 val = NFE_READ(sc, NFE_PWR_STATE); 2778 if ((val & NFE_PWR_WAKEUP) == 0) 2779 NFE_WRITE(sc, NFE_PWR_STATE, val | NFE_PWR_WAKEUP); 2780 DELAY(10); 2781 val = NFE_READ(sc, NFE_PWR_STATE); 2782 NFE_WRITE(sc, NFE_PWR_STATE, val | NFE_PWR_VALID); 2783 2784 #if 1 2785 /* configure interrupts coalescing/mitigation */ 2786 NFE_WRITE(sc, NFE_IMTIMER, NFE_IM_DEFAULT); 2787 #else 2788 /* no interrupt mitigation: one interrupt per packet */ 2789 NFE_WRITE(sc, NFE_IMTIMER, 970); 2790 #endif 2791 2792 NFE_WRITE(sc, NFE_SETUP_R1, NFE_R1_MAGIC_10_100); 2793 NFE_WRITE(sc, NFE_SETUP_R2, NFE_R2_MAGIC); 2794 NFE_WRITE(sc, NFE_SETUP_R6, NFE_R6_MAGIC); 2795 2796 /* update MAC knowledge of PHY; generates a NFE_IRQ_LINK interrupt */ 2797 NFE_WRITE(sc, NFE_STATUS, sc->mii_phyaddr << 24 | NFE_STATUS_MAGIC); 2798 2799 NFE_WRITE(sc, NFE_SETUP_R4, NFE_R4_MAGIC); 2800 /* Disable WOL. */ 2801 NFE_WRITE(sc, NFE_WOL_CTL, 0); 2802 2803 sc->rxtxctl &= ~NFE_RXTX_BIT2; 2804 NFE_WRITE(sc, NFE_RXTX_CTL, sc->rxtxctl); 2805 DELAY(10); 2806 NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_BIT1 | sc->rxtxctl); 2807 2808 /* set Rx filter */ 2809 nfe_setmulti(sc); 2810 2811 /* enable Rx */ 2812 NFE_WRITE(sc, NFE_RX_CTL, NFE_RX_START); 2813 2814 /* enable Tx */ 2815 NFE_WRITE(sc, NFE_TX_CTL, NFE_TX_START); 2816 2817 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 2818 2819 /* Clear hardware stats. */ 2820 nfe_stats_clear(sc); 2821 2822 #ifdef DEVICE_POLLING 2823 if (if_getcapenable(ifp) & IFCAP_POLLING) 2824 nfe_disable_intr(sc); 2825 else 2826 #endif 2827 nfe_set_intr(sc); 2828 nfe_enable_intr(sc); /* enable interrupts */ 2829 2830 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 2831 if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE); 2832 2833 sc->nfe_link = 0; 2834 mii_mediachg(mii); 2835 2836 callout_reset(&sc->nfe_stat_ch, hz, nfe_tick, sc); 2837 } 2838 2839 static void 2840 nfe_stop(if_t ifp) 2841 { 2842 struct nfe_softc *sc = if_getsoftc(ifp); 2843 struct nfe_rx_ring *rx_ring; 2844 struct nfe_jrx_ring *jrx_ring; 2845 struct nfe_tx_ring *tx_ring; 2846 struct nfe_rx_data *rdata; 2847 struct nfe_tx_data *tdata; 2848 int i; 2849 2850 NFE_LOCK_ASSERT(sc); 2851 2852 sc->nfe_watchdog_timer = 0; 2853 if_setdrvflagbits(ifp, 0, (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)); 2854 2855 callout_stop(&sc->nfe_stat_ch); 2856 2857 /* abort Tx */ 2858 NFE_WRITE(sc, NFE_TX_CTL, 0); 2859 2860 /* disable Rx */ 2861 NFE_WRITE(sc, NFE_RX_CTL, 0); 2862 2863 /* disable interrupts */ 2864 nfe_disable_intr(sc); 2865 2866 sc->nfe_link = 0; 2867 2868 /* free Rx and Tx mbufs still in the queues. */ 2869 rx_ring = &sc->rxq; 2870 for (i = 0; i < NFE_RX_RING_COUNT; i++) { 2871 rdata = &rx_ring->data[i]; 2872 if (rdata->m != NULL) { 2873 bus_dmamap_sync(rx_ring->rx_data_tag, 2874 rdata->rx_data_map, BUS_DMASYNC_POSTREAD); 2875 bus_dmamap_unload(rx_ring->rx_data_tag, 2876 rdata->rx_data_map); 2877 m_freem(rdata->m); 2878 rdata->m = NULL; 2879 } 2880 } 2881 2882 if ((sc->nfe_flags & NFE_JUMBO_SUP) != 0) { 2883 jrx_ring = &sc->jrxq; 2884 for (i = 0; i < NFE_JUMBO_RX_RING_COUNT; i++) { 2885 rdata = &jrx_ring->jdata[i]; 2886 if (rdata->m != NULL) { 2887 bus_dmamap_sync(jrx_ring->jrx_data_tag, 2888 rdata->rx_data_map, BUS_DMASYNC_POSTREAD); 2889 bus_dmamap_unload(jrx_ring->jrx_data_tag, 2890 rdata->rx_data_map); 2891 m_freem(rdata->m); 2892 rdata->m = NULL; 2893 } 2894 } 2895 } 2896 2897 tx_ring = &sc->txq; 2898 for (i = 0; i < NFE_RX_RING_COUNT; i++) { 2899 tdata = &tx_ring->data[i]; 2900 if (tdata->m != NULL) { 2901 bus_dmamap_sync(tx_ring->tx_data_tag, 2902 tdata->tx_data_map, BUS_DMASYNC_POSTWRITE); 2903 bus_dmamap_unload(tx_ring->tx_data_tag, 2904 tdata->tx_data_map); 2905 m_freem(tdata->m); 2906 tdata->m = NULL; 2907 } 2908 } 2909 /* Update hardware stats. */ 2910 nfe_stats_update(sc); 2911 } 2912 2913 static int 2914 nfe_ifmedia_upd(if_t ifp) 2915 { 2916 struct nfe_softc *sc = if_getsoftc(ifp); 2917 struct mii_data *mii; 2918 2919 NFE_LOCK(sc); 2920 mii = device_get_softc(sc->nfe_miibus); 2921 mii_mediachg(mii); 2922 NFE_UNLOCK(sc); 2923 2924 return (0); 2925 } 2926 2927 static void 2928 nfe_ifmedia_sts(if_t ifp, struct ifmediareq *ifmr) 2929 { 2930 struct nfe_softc *sc; 2931 struct mii_data *mii; 2932 2933 sc = if_getsoftc(ifp); 2934 2935 NFE_LOCK(sc); 2936 mii = device_get_softc(sc->nfe_miibus); 2937 mii_pollstat(mii); 2938 2939 ifmr->ifm_active = mii->mii_media_active; 2940 ifmr->ifm_status = mii->mii_media_status; 2941 NFE_UNLOCK(sc); 2942 } 2943 2944 void 2945 nfe_tick(void *xsc) 2946 { 2947 struct nfe_softc *sc; 2948 struct mii_data *mii; 2949 if_t ifp; 2950 2951 sc = (struct nfe_softc *)xsc; 2952 2953 NFE_LOCK_ASSERT(sc); 2954 2955 ifp = sc->nfe_ifp; 2956 2957 mii = device_get_softc(sc->nfe_miibus); 2958 mii_tick(mii); 2959 nfe_stats_update(sc); 2960 nfe_watchdog(ifp); 2961 callout_reset(&sc->nfe_stat_ch, hz, nfe_tick, sc); 2962 } 2963 2964 static int 2965 nfe_shutdown(device_t dev) 2966 { 2967 2968 return (nfe_suspend(dev)); 2969 } 2970 2971 static void 2972 nfe_get_macaddr(struct nfe_softc *sc, uint8_t *addr) 2973 { 2974 uint32_t val; 2975 2976 if ((sc->nfe_flags & NFE_CORRECT_MACADDR) == 0) { 2977 val = NFE_READ(sc, NFE_MACADDR_LO); 2978 addr[0] = (val >> 8) & 0xff; 2979 addr[1] = (val & 0xff); 2980 2981 val = NFE_READ(sc, NFE_MACADDR_HI); 2982 addr[2] = (val >> 24) & 0xff; 2983 addr[3] = (val >> 16) & 0xff; 2984 addr[4] = (val >> 8) & 0xff; 2985 addr[5] = (val & 0xff); 2986 } else { 2987 val = NFE_READ(sc, NFE_MACADDR_LO); 2988 addr[5] = (val >> 8) & 0xff; 2989 addr[4] = (val & 0xff); 2990 2991 val = NFE_READ(sc, NFE_MACADDR_HI); 2992 addr[3] = (val >> 24) & 0xff; 2993 addr[2] = (val >> 16) & 0xff; 2994 addr[1] = (val >> 8) & 0xff; 2995 addr[0] = (val & 0xff); 2996 } 2997 } 2998 2999 static void 3000 nfe_set_macaddr(struct nfe_softc *sc, uint8_t *addr) 3001 { 3002 3003 NFE_WRITE(sc, NFE_MACADDR_LO, addr[5] << 8 | addr[4]); 3004 NFE_WRITE(sc, NFE_MACADDR_HI, addr[3] << 24 | addr[2] << 16 | 3005 addr[1] << 8 | addr[0]); 3006 } 3007 3008 /* 3009 * Map a single buffer address. 3010 */ 3011 3012 static void 3013 nfe_dma_map_segs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 3014 { 3015 struct nfe_dmamap_arg *ctx; 3016 3017 if (error != 0) 3018 return; 3019 3020 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 3021 3022 ctx = (struct nfe_dmamap_arg *)arg; 3023 ctx->nfe_busaddr = segs[0].ds_addr; 3024 } 3025 3026 static int 3027 sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high) 3028 { 3029 int error, value; 3030 3031 if (!arg1) 3032 return (EINVAL); 3033 value = *(int *)arg1; 3034 error = sysctl_handle_int(oidp, &value, 0, req); 3035 if (error || !req->newptr) 3036 return (error); 3037 if (value < low || value > high) 3038 return (EINVAL); 3039 *(int *)arg1 = value; 3040 3041 return (0); 3042 } 3043 3044 static int 3045 sysctl_hw_nfe_proc_limit(SYSCTL_HANDLER_ARGS) 3046 { 3047 3048 return (sysctl_int_range(oidp, arg1, arg2, req, NFE_PROC_MIN, 3049 NFE_PROC_MAX)); 3050 } 3051 3052 #define NFE_SYSCTL_STAT_ADD32(c, h, n, p, d) \ 3053 SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d) 3054 #define NFE_SYSCTL_STAT_ADD64(c, h, n, p, d) \ 3055 SYSCTL_ADD_UQUAD(c, h, OID_AUTO, n, CTLFLAG_RD, p, d) 3056 3057 static void 3058 nfe_sysctl_node(struct nfe_softc *sc) 3059 { 3060 struct sysctl_ctx_list *ctx; 3061 struct sysctl_oid_list *child, *parent; 3062 struct sysctl_oid *tree; 3063 struct nfe_hw_stats *stats; 3064 int error; 3065 3066 stats = &sc->nfe_stats; 3067 ctx = device_get_sysctl_ctx(sc->nfe_dev); 3068 child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->nfe_dev)); 3069 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "process_limit", 3070 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 3071 &sc->nfe_process_limit, 0, sysctl_hw_nfe_proc_limit, "I", 3072 "max number of Rx events to process"); 3073 3074 sc->nfe_process_limit = NFE_PROC_DEFAULT; 3075 error = resource_int_value(device_get_name(sc->nfe_dev), 3076 device_get_unit(sc->nfe_dev), "process_limit", 3077 &sc->nfe_process_limit); 3078 if (error == 0) { 3079 if (sc->nfe_process_limit < NFE_PROC_MIN || 3080 sc->nfe_process_limit > NFE_PROC_MAX) { 3081 device_printf(sc->nfe_dev, 3082 "process_limit value out of range; " 3083 "using default: %d\n", NFE_PROC_DEFAULT); 3084 sc->nfe_process_limit = NFE_PROC_DEFAULT; 3085 } 3086 } 3087 3088 if ((sc->nfe_flags & (NFE_MIB_V1 | NFE_MIB_V2 | NFE_MIB_V3)) == 0) 3089 return; 3090 3091 tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", 3092 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "NFE statistics"); 3093 parent = SYSCTL_CHILDREN(tree); 3094 3095 /* Rx statistics. */ 3096 tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", 3097 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Rx MAC statistics"); 3098 child = SYSCTL_CHILDREN(tree); 3099 3100 NFE_SYSCTL_STAT_ADD32(ctx, child, "frame_errors", 3101 &stats->rx_frame_errors, "Framing Errors"); 3102 NFE_SYSCTL_STAT_ADD32(ctx, child, "extra_bytes", 3103 &stats->rx_extra_bytes, "Extra Bytes"); 3104 NFE_SYSCTL_STAT_ADD32(ctx, child, "late_cols", 3105 &stats->rx_late_cols, "Late Collisions"); 3106 NFE_SYSCTL_STAT_ADD32(ctx, child, "runts", 3107 &stats->rx_runts, "Runts"); 3108 NFE_SYSCTL_STAT_ADD32(ctx, child, "jumbos", 3109 &stats->rx_jumbos, "Jumbos"); 3110 NFE_SYSCTL_STAT_ADD32(ctx, child, "fifo_overuns", 3111 &stats->rx_fifo_overuns, "FIFO Overruns"); 3112 NFE_SYSCTL_STAT_ADD32(ctx, child, "crc_errors", 3113 &stats->rx_crc_errors, "CRC Errors"); 3114 NFE_SYSCTL_STAT_ADD32(ctx, child, "fae", 3115 &stats->rx_fae, "Frame Alignment Errors"); 3116 NFE_SYSCTL_STAT_ADD32(ctx, child, "len_errors", 3117 &stats->rx_len_errors, "Length Errors"); 3118 NFE_SYSCTL_STAT_ADD32(ctx, child, "unicast", 3119 &stats->rx_unicast, "Unicast Frames"); 3120 NFE_SYSCTL_STAT_ADD32(ctx, child, "multicast", 3121 &stats->rx_multicast, "Multicast Frames"); 3122 NFE_SYSCTL_STAT_ADD32(ctx, child, "broadcast", 3123 &stats->rx_broadcast, "Broadcast Frames"); 3124 if ((sc->nfe_flags & NFE_MIB_V2) != 0) { 3125 NFE_SYSCTL_STAT_ADD64(ctx, child, "octets", 3126 &stats->rx_octets, "Octets"); 3127 NFE_SYSCTL_STAT_ADD32(ctx, child, "pause", 3128 &stats->rx_pause, "Pause frames"); 3129 NFE_SYSCTL_STAT_ADD32(ctx, child, "drops", 3130 &stats->rx_drops, "Drop frames"); 3131 } 3132 3133 /* Tx statistics. */ 3134 tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", 3135 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Tx MAC statistics"); 3136 child = SYSCTL_CHILDREN(tree); 3137 NFE_SYSCTL_STAT_ADD64(ctx, child, "octets", 3138 &stats->tx_octets, "Octets"); 3139 NFE_SYSCTL_STAT_ADD32(ctx, child, "zero_rexmits", 3140 &stats->tx_zero_rexmits, "Zero Retransmits"); 3141 NFE_SYSCTL_STAT_ADD32(ctx, child, "one_rexmits", 3142 &stats->tx_one_rexmits, "One Retransmits"); 3143 NFE_SYSCTL_STAT_ADD32(ctx, child, "multi_rexmits", 3144 &stats->tx_multi_rexmits, "Multiple Retransmits"); 3145 NFE_SYSCTL_STAT_ADD32(ctx, child, "late_cols", 3146 &stats->tx_late_cols, "Late Collisions"); 3147 NFE_SYSCTL_STAT_ADD32(ctx, child, "fifo_underuns", 3148 &stats->tx_fifo_underuns, "FIFO Underruns"); 3149 NFE_SYSCTL_STAT_ADD32(ctx, child, "carrier_losts", 3150 &stats->tx_carrier_losts, "Carrier Losts"); 3151 NFE_SYSCTL_STAT_ADD32(ctx, child, "excess_deferrals", 3152 &stats->tx_excess_deferals, "Excess Deferrals"); 3153 NFE_SYSCTL_STAT_ADD32(ctx, child, "retry_errors", 3154 &stats->tx_retry_errors, "Retry Errors"); 3155 if ((sc->nfe_flags & NFE_MIB_V2) != 0) { 3156 NFE_SYSCTL_STAT_ADD32(ctx, child, "deferrals", 3157 &stats->tx_deferals, "Deferrals"); 3158 NFE_SYSCTL_STAT_ADD32(ctx, child, "frames", 3159 &stats->tx_frames, "Frames"); 3160 NFE_SYSCTL_STAT_ADD32(ctx, child, "pause", 3161 &stats->tx_pause, "Pause Frames"); 3162 } 3163 if ((sc->nfe_flags & NFE_MIB_V3) != 0) { 3164 NFE_SYSCTL_STAT_ADD32(ctx, child, "unicast", 3165 &stats->tx_deferals, "Unicast Frames"); 3166 NFE_SYSCTL_STAT_ADD32(ctx, child, "multicast", 3167 &stats->tx_frames, "Multicast Frames"); 3168 NFE_SYSCTL_STAT_ADD32(ctx, child, "broadcast", 3169 &stats->tx_pause, "Broadcast Frames"); 3170 } 3171 } 3172 3173 #undef NFE_SYSCTL_STAT_ADD32 3174 #undef NFE_SYSCTL_STAT_ADD64 3175 3176 static void 3177 nfe_stats_clear(struct nfe_softc *sc) 3178 { 3179 int i, mib_cnt; 3180 3181 if ((sc->nfe_flags & NFE_MIB_V1) != 0) 3182 mib_cnt = NFE_NUM_MIB_STATV1; 3183 else if ((sc->nfe_flags & (NFE_MIB_V2 | NFE_MIB_V3)) != 0) 3184 mib_cnt = NFE_NUM_MIB_STATV2; 3185 else 3186 return; 3187 3188 for (i = 0; i < mib_cnt; i++) 3189 NFE_READ(sc, NFE_TX_OCTET + i * sizeof(uint32_t)); 3190 3191 if ((sc->nfe_flags & NFE_MIB_V3) != 0) { 3192 NFE_READ(sc, NFE_TX_UNICAST); 3193 NFE_READ(sc, NFE_TX_MULTICAST); 3194 NFE_READ(sc, NFE_TX_BROADCAST); 3195 } 3196 } 3197 3198 static void 3199 nfe_stats_update(struct nfe_softc *sc) 3200 { 3201 struct nfe_hw_stats *stats; 3202 3203 NFE_LOCK_ASSERT(sc); 3204 3205 if ((sc->nfe_flags & (NFE_MIB_V1 | NFE_MIB_V2 | NFE_MIB_V3)) == 0) 3206 return; 3207 3208 stats = &sc->nfe_stats; 3209 stats->tx_octets += NFE_READ(sc, NFE_TX_OCTET); 3210 stats->tx_zero_rexmits += NFE_READ(sc, NFE_TX_ZERO_REXMIT); 3211 stats->tx_one_rexmits += NFE_READ(sc, NFE_TX_ONE_REXMIT); 3212 stats->tx_multi_rexmits += NFE_READ(sc, NFE_TX_MULTI_REXMIT); 3213 stats->tx_late_cols += NFE_READ(sc, NFE_TX_LATE_COL); 3214 stats->tx_fifo_underuns += NFE_READ(sc, NFE_TX_FIFO_UNDERUN); 3215 stats->tx_carrier_losts += NFE_READ(sc, NFE_TX_CARRIER_LOST); 3216 stats->tx_excess_deferals += NFE_READ(sc, NFE_TX_EXCESS_DEFERRAL); 3217 stats->tx_retry_errors += NFE_READ(sc, NFE_TX_RETRY_ERROR); 3218 stats->rx_frame_errors += NFE_READ(sc, NFE_RX_FRAME_ERROR); 3219 stats->rx_extra_bytes += NFE_READ(sc, NFE_RX_EXTRA_BYTES); 3220 stats->rx_late_cols += NFE_READ(sc, NFE_RX_LATE_COL); 3221 stats->rx_runts += NFE_READ(sc, NFE_RX_RUNT); 3222 stats->rx_jumbos += NFE_READ(sc, NFE_RX_JUMBO); 3223 stats->rx_fifo_overuns += NFE_READ(sc, NFE_RX_FIFO_OVERUN); 3224 stats->rx_crc_errors += NFE_READ(sc, NFE_RX_CRC_ERROR); 3225 stats->rx_fae += NFE_READ(sc, NFE_RX_FAE); 3226 stats->rx_len_errors += NFE_READ(sc, NFE_RX_LEN_ERROR); 3227 stats->rx_unicast += NFE_READ(sc, NFE_RX_UNICAST); 3228 stats->rx_multicast += NFE_READ(sc, NFE_RX_MULTICAST); 3229 stats->rx_broadcast += NFE_READ(sc, NFE_RX_BROADCAST); 3230 3231 if ((sc->nfe_flags & NFE_MIB_V2) != 0) { 3232 stats->tx_deferals += NFE_READ(sc, NFE_TX_DEFERAL); 3233 stats->tx_frames += NFE_READ(sc, NFE_TX_FRAME); 3234 stats->rx_octets += NFE_READ(sc, NFE_RX_OCTET); 3235 stats->tx_pause += NFE_READ(sc, NFE_TX_PAUSE); 3236 stats->rx_pause += NFE_READ(sc, NFE_RX_PAUSE); 3237 stats->rx_drops += NFE_READ(sc, NFE_RX_DROP); 3238 } 3239 3240 if ((sc->nfe_flags & NFE_MIB_V3) != 0) { 3241 stats->tx_unicast += NFE_READ(sc, NFE_TX_UNICAST); 3242 stats->tx_multicast += NFE_READ(sc, NFE_TX_MULTICAST); 3243 stats->tx_broadcast += NFE_READ(sc, NFE_TX_BROADCAST); 3244 } 3245 } 3246 3247 static void 3248 nfe_set_linkspeed(struct nfe_softc *sc) 3249 { 3250 struct mii_softc *miisc; 3251 struct mii_data *mii; 3252 int aneg, i, phyno; 3253 3254 NFE_LOCK_ASSERT(sc); 3255 3256 mii = device_get_softc(sc->nfe_miibus); 3257 mii_pollstat(mii); 3258 aneg = 0; 3259 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 3260 (IFM_ACTIVE | IFM_AVALID)) { 3261 switch IFM_SUBTYPE(mii->mii_media_active) { 3262 case IFM_10_T: 3263 case IFM_100_TX: 3264 return; 3265 case IFM_1000_T: 3266 aneg++; 3267 break; 3268 default: 3269 break; 3270 } 3271 } 3272 miisc = LIST_FIRST(&mii->mii_phys); 3273 phyno = miisc->mii_phy; 3274 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 3275 PHY_RESET(miisc); 3276 nfe_miibus_writereg(sc->nfe_dev, phyno, MII_100T2CR, 0); 3277 nfe_miibus_writereg(sc->nfe_dev, phyno, 3278 MII_ANAR, ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10 | ANAR_CSMA); 3279 nfe_miibus_writereg(sc->nfe_dev, phyno, 3280 MII_BMCR, BMCR_RESET | BMCR_AUTOEN | BMCR_STARTNEG); 3281 DELAY(1000); 3282 if (aneg != 0) { 3283 /* 3284 * Poll link state until nfe(4) get a 10/100Mbps link. 3285 */ 3286 for (i = 0; i < MII_ANEGTICKS_GIGE; i++) { 3287 mii_pollstat(mii); 3288 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) 3289 == (IFM_ACTIVE | IFM_AVALID)) { 3290 switch (IFM_SUBTYPE(mii->mii_media_active)) { 3291 case IFM_10_T: 3292 case IFM_100_TX: 3293 nfe_mac_config(sc, mii); 3294 return; 3295 default: 3296 break; 3297 } 3298 } 3299 NFE_UNLOCK(sc); 3300 pause("nfelnk", hz); 3301 NFE_LOCK(sc); 3302 } 3303 if (i == MII_ANEGTICKS_GIGE) 3304 device_printf(sc->nfe_dev, 3305 "establishing a link failed, WOL may not work!"); 3306 } 3307 /* 3308 * No link, force MAC to have 100Mbps, full-duplex link. 3309 * This is the last resort and may/may not work. 3310 */ 3311 mii->mii_media_status = IFM_AVALID | IFM_ACTIVE; 3312 mii->mii_media_active = IFM_ETHER | IFM_100_TX | IFM_FDX; 3313 nfe_mac_config(sc, mii); 3314 } 3315 3316 static void 3317 nfe_set_wol(struct nfe_softc *sc) 3318 { 3319 if_t ifp; 3320 uint32_t wolctl; 3321 int pmc; 3322 uint16_t pmstat; 3323 3324 NFE_LOCK_ASSERT(sc); 3325 3326 if (pci_find_cap(sc->nfe_dev, PCIY_PMG, &pmc) != 0) 3327 return; 3328 ifp = sc->nfe_ifp; 3329 if ((if_getcapenable(ifp) & IFCAP_WOL_MAGIC) != 0) 3330 wolctl = NFE_WOL_MAGIC; 3331 else 3332 wolctl = 0; 3333 NFE_WRITE(sc, NFE_WOL_CTL, wolctl); 3334 if ((if_getcapenable(ifp) & IFCAP_WOL_MAGIC) != 0) { 3335 nfe_set_linkspeed(sc); 3336 if ((sc->nfe_flags & NFE_PWR_MGMT) != 0) 3337 NFE_WRITE(sc, NFE_PWR2_CTL, 3338 NFE_READ(sc, NFE_PWR2_CTL) & ~NFE_PWR2_GATE_CLOCKS); 3339 /* Enable RX. */ 3340 NFE_WRITE(sc, NFE_RX_RING_ADDR_HI, 0); 3341 NFE_WRITE(sc, NFE_RX_RING_ADDR_LO, 0); 3342 NFE_WRITE(sc, NFE_RX_CTL, NFE_READ(sc, NFE_RX_CTL) | 3343 NFE_RX_START); 3344 } 3345 /* Request PME if WOL is requested. */ 3346 pmstat = pci_read_config(sc->nfe_dev, pmc + PCIR_POWER_STATUS, 2); 3347 pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE); 3348 if ((if_getcapenable(ifp) & IFCAP_WOL) != 0) 3349 pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE; 3350 pci_write_config(sc->nfe_dev, pmc + PCIR_POWER_STATUS, pmstat, 2); 3351 }
Cache object: 182d08c3b2f6c29b9a153feb73874bfe
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