1 /*- 2 * Copyright (c) 2001 Wind River Systems 3 * Copyright (c) 1997, 1998, 1999, 2001 4 * Bill Paul <wpaul@windriver.com>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Bill Paul. 17 * 4. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 /* 38 * Broadcom BCM570x family gigabit ethernet driver for FreeBSD. 39 * 40 * The Broadcom BCM5700 is based on technology originally developed by 41 * Alteon Networks as part of the Tigon I and Tigon II gigabit ethernet 42 * MAC chips. The BCM5700, sometimes refered to as the Tigon III, has 43 * two on-board MIPS R4000 CPUs and can have as much as 16MB of external 44 * SSRAM. The BCM5700 supports TCP, UDP and IP checksum offload, jumbo 45 * frames, highly configurable RX filtering, and 16 RX and TX queues 46 * (which, along with RX filter rules, can be used for QOS applications). 47 * Other features, such as TCP segmentation, may be available as part 48 * of value-added firmware updates. Unlike the Tigon I and Tigon II, 49 * firmware images can be stored in hardware and need not be compiled 50 * into the driver. 51 * 52 * The BCM5700 supports the PCI v2.2 and PCI-X v1.0 standards, and will 53 * function in a 32-bit/64-bit 33/66Mhz bus, or a 64-bit/133Mhz bus. 54 * 55 * The BCM5701 is a single-chip solution incorporating both the BCM5700 56 * MAC and a BCM5401 10/100/1000 PHY. Unlike the BCM5700, the BCM5701 57 * does not support external SSRAM. 58 * 59 * Broadcom also produces a variation of the BCM5700 under the "Altima" 60 * brand name, which is functionally similar but lacks PCI-X support. 61 * 62 * Without external SSRAM, you can only have at most 4 TX rings, 63 * and the use of the mini RX ring is disabled. This seems to imply 64 * that these features are simply not available on the BCM5701. As a 65 * result, this driver does not implement any support for the mini RX 66 * ring. 67 */ 68 69 #ifdef HAVE_KERNEL_OPTION_HEADERS 70 #include "opt_device_polling.h" 71 #endif 72 73 #include <sys/param.h> 74 #include <sys/endian.h> 75 #include <sys/systm.h> 76 #include <sys/sockio.h> 77 #include <sys/mbuf.h> 78 #include <sys/malloc.h> 79 #include <sys/kernel.h> 80 #include <sys/module.h> 81 #include <sys/socket.h> 82 #include <sys/sysctl.h> 83 84 #include <net/if.h> 85 #include <net/if_arp.h> 86 #include <net/ethernet.h> 87 #include <net/if_dl.h> 88 #include <net/if_media.h> 89 90 #include <net/bpf.h> 91 92 #include <net/if_types.h> 93 #include <net/if_vlan_var.h> 94 95 #include <netinet/in_systm.h> 96 #include <netinet/in.h> 97 #include <netinet/ip.h> 98 99 #include <machine/bus.h> 100 #include <machine/resource.h> 101 #include <sys/bus.h> 102 #include <sys/rman.h> 103 104 #include <dev/mii/mii.h> 105 #include <dev/mii/miivar.h> 106 #include "miidevs.h" 107 #include <dev/mii/brgphyreg.h> 108 109 #include <dev/pci/pcireg.h> 110 #include <dev/pci/pcivar.h> 111 112 #include <dev/bge/if_bgereg.h> 113 114 #define BGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP) 115 #define ETHER_MIN_NOPAD (ETHER_MIN_LEN - ETHER_CRC_LEN) /* i.e., 60 */ 116 117 MODULE_DEPEND(bge, pci, 1, 1, 1); 118 MODULE_DEPEND(bge, ether, 1, 1, 1); 119 MODULE_DEPEND(bge, miibus, 1, 1, 1); 120 121 /* "device miibus" required. See GENERIC if you get errors here. */ 122 #include "miibus_if.h" 123 124 /* 125 * Various supported device vendors/types and their names. Note: the 126 * spec seems to indicate that the hardware still has Alteon's vendor 127 * ID burned into it, though it will always be overriden by the vendor 128 * ID in the EEPROM. Just to be safe, we cover all possibilities. 129 */ 130 static struct bge_type { 131 uint16_t bge_vid; 132 uint16_t bge_did; 133 } bge_devs[] = { 134 { ALTEON_VENDORID, ALTEON_DEVICEID_BCM5700 }, 135 { ALTEON_VENDORID, ALTEON_DEVICEID_BCM5701 }, 136 137 { ALTIMA_VENDORID, ALTIMA_DEVICE_AC1000 }, 138 { ALTIMA_VENDORID, ALTIMA_DEVICE_AC1002 }, 139 { ALTIMA_VENDORID, ALTIMA_DEVICE_AC9100 }, 140 141 { APPLE_VENDORID, APPLE_DEVICE_BCM5701 }, 142 143 { BCOM_VENDORID, BCOM_DEVICEID_BCM5700 }, 144 { BCOM_VENDORID, BCOM_DEVICEID_BCM5701 }, 145 { BCOM_VENDORID, BCOM_DEVICEID_BCM5702 }, 146 { BCOM_VENDORID, BCOM_DEVICEID_BCM5702_ALT }, 147 { BCOM_VENDORID, BCOM_DEVICEID_BCM5702X }, 148 { BCOM_VENDORID, BCOM_DEVICEID_BCM5703 }, 149 { BCOM_VENDORID, BCOM_DEVICEID_BCM5703_ALT }, 150 { BCOM_VENDORID, BCOM_DEVICEID_BCM5703X }, 151 { BCOM_VENDORID, BCOM_DEVICEID_BCM5704C }, 152 { BCOM_VENDORID, BCOM_DEVICEID_BCM5704S }, 153 { BCOM_VENDORID, BCOM_DEVICEID_BCM5704S_ALT }, 154 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705 }, 155 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705F }, 156 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705K }, 157 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705M }, 158 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705M_ALT }, 159 { BCOM_VENDORID, BCOM_DEVICEID_BCM5714C }, 160 { BCOM_VENDORID, BCOM_DEVICEID_BCM5714S }, 161 { BCOM_VENDORID, BCOM_DEVICEID_BCM5715 }, 162 { BCOM_VENDORID, BCOM_DEVICEID_BCM5715S }, 163 { BCOM_VENDORID, BCOM_DEVICEID_BCM5720 }, 164 { BCOM_VENDORID, BCOM_DEVICEID_BCM5721 }, 165 { BCOM_VENDORID, BCOM_DEVICEID_BCM5750 }, 166 { BCOM_VENDORID, BCOM_DEVICEID_BCM5750M }, 167 { BCOM_VENDORID, BCOM_DEVICEID_BCM5751 }, 168 { BCOM_VENDORID, BCOM_DEVICEID_BCM5751F }, 169 { BCOM_VENDORID, BCOM_DEVICEID_BCM5751M }, 170 { BCOM_VENDORID, BCOM_DEVICEID_BCM5752 }, 171 { BCOM_VENDORID, BCOM_DEVICEID_BCM5752M }, 172 { BCOM_VENDORID, BCOM_DEVICEID_BCM5753 }, 173 { BCOM_VENDORID, BCOM_DEVICEID_BCM5753F }, 174 { BCOM_VENDORID, BCOM_DEVICEID_BCM5753M }, 175 { BCOM_VENDORID, BCOM_DEVICEID_BCM5754 }, 176 { BCOM_VENDORID, BCOM_DEVICEID_BCM5754M }, 177 { BCOM_VENDORID, BCOM_DEVICEID_BCM5755 }, 178 { BCOM_VENDORID, BCOM_DEVICEID_BCM5755M }, 179 { BCOM_VENDORID, BCOM_DEVICEID_BCM5780 }, 180 { BCOM_VENDORID, BCOM_DEVICEID_BCM5780S }, 181 { BCOM_VENDORID, BCOM_DEVICEID_BCM5781 }, 182 { BCOM_VENDORID, BCOM_DEVICEID_BCM5782 }, 183 { BCOM_VENDORID, BCOM_DEVICEID_BCM5786 }, 184 { BCOM_VENDORID, BCOM_DEVICEID_BCM5787 }, 185 { BCOM_VENDORID, BCOM_DEVICEID_BCM5787M }, 186 { BCOM_VENDORID, BCOM_DEVICEID_BCM5788 }, 187 { BCOM_VENDORID, BCOM_DEVICEID_BCM5789 }, 188 { BCOM_VENDORID, BCOM_DEVICEID_BCM5901 }, 189 { BCOM_VENDORID, BCOM_DEVICEID_BCM5901A2 }, 190 { BCOM_VENDORID, BCOM_DEVICEID_BCM5903M }, 191 192 { SK_VENDORID, SK_DEVICEID_ALTIMA }, 193 194 { TC_VENDORID, TC_DEVICEID_3C996 }, 195 196 { 0, 0 } 197 }; 198 199 static const struct bge_vendor { 200 uint16_t v_id; 201 const char *v_name; 202 } bge_vendors[] = { 203 { ALTEON_VENDORID, "Alteon" }, 204 { ALTIMA_VENDORID, "Altima" }, 205 { APPLE_VENDORID, "Apple" }, 206 { BCOM_VENDORID, "Broadcom" }, 207 { SK_VENDORID, "SysKonnect" }, 208 { TC_VENDORID, "3Com" }, 209 210 { 0, NULL } 211 }; 212 213 static const struct bge_revision { 214 uint32_t br_chipid; 215 const char *br_name; 216 } bge_revisions[] = { 217 { BGE_CHIPID_BCM5700_A0, "BCM5700 A0" }, 218 { BGE_CHIPID_BCM5700_A1, "BCM5700 A1" }, 219 { BGE_CHIPID_BCM5700_B0, "BCM5700 B0" }, 220 { BGE_CHIPID_BCM5700_B1, "BCM5700 B1" }, 221 { BGE_CHIPID_BCM5700_B2, "BCM5700 B2" }, 222 { BGE_CHIPID_BCM5700_B3, "BCM5700 B3" }, 223 { BGE_CHIPID_BCM5700_ALTIMA, "BCM5700 Altima" }, 224 { BGE_CHIPID_BCM5700_C0, "BCM5700 C0" }, 225 { BGE_CHIPID_BCM5701_A0, "BCM5701 A0" }, 226 { BGE_CHIPID_BCM5701_B0, "BCM5701 B0" }, 227 { BGE_CHIPID_BCM5701_B2, "BCM5701 B2" }, 228 { BGE_CHIPID_BCM5701_B5, "BCM5701 B5" }, 229 { BGE_CHIPID_BCM5703_A0, "BCM5703 A0" }, 230 { BGE_CHIPID_BCM5703_A1, "BCM5703 A1" }, 231 { BGE_CHIPID_BCM5703_A2, "BCM5703 A2" }, 232 { BGE_CHIPID_BCM5703_A3, "BCM5703 A3" }, 233 { BGE_CHIPID_BCM5703_B0, "BCM5703 B0" }, 234 { BGE_CHIPID_BCM5704_A0, "BCM5704 A0" }, 235 { BGE_CHIPID_BCM5704_A1, "BCM5704 A1" }, 236 { BGE_CHIPID_BCM5704_A2, "BCM5704 A2" }, 237 { BGE_CHIPID_BCM5704_A3, "BCM5704 A3" }, 238 { BGE_CHIPID_BCM5704_B0, "BCM5704 B0" }, 239 { BGE_CHIPID_BCM5705_A0, "BCM5705 A0" }, 240 { BGE_CHIPID_BCM5705_A1, "BCM5705 A1" }, 241 { BGE_CHIPID_BCM5705_A2, "BCM5705 A2" }, 242 { BGE_CHIPID_BCM5705_A3, "BCM5705 A3" }, 243 { BGE_CHIPID_BCM5750_A0, "BCM5750 A0" }, 244 { BGE_CHIPID_BCM5750_A1, "BCM5750 A1" }, 245 { BGE_CHIPID_BCM5750_A3, "BCM5750 A3" }, 246 { BGE_CHIPID_BCM5750_B0, "BCM5750 B0" }, 247 { BGE_CHIPID_BCM5750_B1, "BCM5750 B1" }, 248 { BGE_CHIPID_BCM5750_C0, "BCM5750 C0" }, 249 { BGE_CHIPID_BCM5750_C1, "BCM5750 C1" }, 250 { BGE_CHIPID_BCM5750_C2, "BCM5750 C2" }, 251 { BGE_CHIPID_BCM5714_A0, "BCM5714 A0" }, 252 { BGE_CHIPID_BCM5752_A0, "BCM5752 A0" }, 253 { BGE_CHIPID_BCM5752_A1, "BCM5752 A1" }, 254 { BGE_CHIPID_BCM5752_A2, "BCM5752 A2" }, 255 { BGE_CHIPID_BCM5714_B0, "BCM5714 B0" }, 256 { BGE_CHIPID_BCM5714_B3, "BCM5714 B3" }, 257 { BGE_CHIPID_BCM5715_A0, "BCM5715 A0" }, 258 { BGE_CHIPID_BCM5715_A1, "BCM5715 A1" }, 259 /* 5784 and 5787 share the same ASIC ID */ 260 { BGE_CHIPID_BCM5787_A0, "BCM5754/5787 A0" }, 261 { BGE_CHIPID_BCM5787_A1, "BCM5754/5787 A1" }, 262 { BGE_CHIPID_BCM5787_A2, "BCM5754/5787 A2" }, 263 264 { 0, NULL } 265 }; 266 267 /* 268 * Some defaults for major revisions, so that newer steppings 269 * that we don't know about have a shot at working. 270 */ 271 static const struct bge_revision bge_majorrevs[] = { 272 { BGE_ASICREV_BCM5700, "unknown BCM5700" }, 273 { BGE_ASICREV_BCM5701, "unknown BCM5701" }, 274 { BGE_ASICREV_BCM5703, "unknown BCM5703" }, 275 { BGE_ASICREV_BCM5704, "unknown BCM5704" }, 276 { BGE_ASICREV_BCM5705, "unknown BCM5705" }, 277 { BGE_ASICREV_BCM5750, "unknown BCM5750" }, 278 { BGE_ASICREV_BCM5714_A0, "unknown BCM5714" }, 279 { BGE_ASICREV_BCM5752, "unknown BCM5752" }, 280 { BGE_ASICREV_BCM5780, "unknown BCM5780" }, 281 { BGE_ASICREV_BCM5714, "unknown BCM5714" }, 282 { BGE_ASICREV_BCM5755, "unknown BCM5755" }, 283 /* 5784 and 5787 share the same ASIC ID */ 284 { BGE_ASICREV_BCM5787, "unknown BCM5754/5787" }, 285 286 { 0, NULL } 287 }; 288 289 #define BGE_IS_JUMBO_CAPABLE(sc) ((sc)->bge_flags & BGE_FLAG_JUMBO) 290 #define BGE_IS_5700_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5700_FAMILY) 291 #define BGE_IS_5705_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5705_PLUS) 292 #define BGE_IS_5714_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5714_FAMILY) 293 #define BGE_IS_575X_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_575X_PLUS) 294 295 const struct bge_revision * bge_lookup_rev(uint32_t); 296 const struct bge_vendor * bge_lookup_vendor(uint16_t); 297 static int bge_probe(device_t); 298 static int bge_attach(device_t); 299 static int bge_detach(device_t); 300 static int bge_suspend(device_t); 301 static int bge_resume(device_t); 302 static void bge_release_resources(struct bge_softc *); 303 static void bge_dma_map_addr(void *, bus_dma_segment_t *, int, int); 304 static int bge_dma_alloc(device_t); 305 static void bge_dma_free(struct bge_softc *); 306 307 static void bge_txeof(struct bge_softc *); 308 static void bge_rxeof(struct bge_softc *); 309 310 static void bge_asf_driver_up (struct bge_softc *); 311 static void bge_tick(void *); 312 static void bge_stats_update(struct bge_softc *); 313 static void bge_stats_update_regs(struct bge_softc *); 314 static int bge_encap(struct bge_softc *, struct mbuf **, uint32_t *); 315 316 static void bge_intr(void *); 317 static void bge_start_locked(struct ifnet *); 318 static void bge_start(struct ifnet *); 319 static int bge_ioctl(struct ifnet *, u_long, caddr_t); 320 static void bge_init_locked(struct bge_softc *); 321 static void bge_init(void *); 322 static void bge_stop(struct bge_softc *); 323 static void bge_watchdog(struct bge_softc *); 324 static void bge_shutdown(device_t); 325 static int bge_ifmedia_upd_locked(struct ifnet *); 326 static int bge_ifmedia_upd(struct ifnet *); 327 static void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *); 328 329 static uint8_t bge_eeprom_getbyte(struct bge_softc *, int, uint8_t *); 330 static int bge_read_eeprom(struct bge_softc *, caddr_t, int, int); 331 332 static void bge_setpromisc(struct bge_softc *); 333 static void bge_setmulti(struct bge_softc *); 334 335 static int bge_newbuf_std(struct bge_softc *, int, struct mbuf *); 336 static int bge_newbuf_jumbo(struct bge_softc *, int, struct mbuf *); 337 static int bge_init_rx_ring_std(struct bge_softc *); 338 static void bge_free_rx_ring_std(struct bge_softc *); 339 static int bge_init_rx_ring_jumbo(struct bge_softc *); 340 static void bge_free_rx_ring_jumbo(struct bge_softc *); 341 static void bge_free_tx_ring(struct bge_softc *); 342 static int bge_init_tx_ring(struct bge_softc *); 343 344 static int bge_chipinit(struct bge_softc *); 345 static int bge_blockinit(struct bge_softc *); 346 347 static uint32_t bge_readmem_ind(struct bge_softc *, int); 348 static void bge_writemem_ind(struct bge_softc *, int, int); 349 #ifdef notdef 350 static uint32_t bge_readreg_ind(struct bge_softc *, int); 351 #endif 352 static void bge_writemem_direct(struct bge_softc *, int, int); 353 static void bge_writereg_ind(struct bge_softc *, int, int); 354 355 static int bge_miibus_readreg(device_t, int, int); 356 static int bge_miibus_writereg(device_t, int, int, int); 357 static void bge_miibus_statchg(device_t); 358 #ifdef DEVICE_POLLING 359 static void bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count); 360 #endif 361 362 #define BGE_RESET_START 1 363 #define BGE_RESET_STOP 2 364 static void bge_sig_post_reset(struct bge_softc *, int); 365 static void bge_sig_legacy(struct bge_softc *, int); 366 static void bge_sig_pre_reset(struct bge_softc *, int); 367 static int bge_reset(struct bge_softc *); 368 static void bge_link_upd(struct bge_softc *); 369 370 /* 371 * The BGE_REGISTER_DEBUG option is only for low-level debugging. It may 372 * leak information to untrusted users. It is also known to cause alignment 373 * traps on certain architectures. 374 */ 375 #ifdef BGE_REGISTER_DEBUG 376 static int bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS); 377 static int bge_sysctl_reg_read(SYSCTL_HANDLER_ARGS); 378 static int bge_sysctl_mem_read(SYSCTL_HANDLER_ARGS); 379 #endif 380 static void bge_add_sysctls(struct bge_softc *); 381 382 static device_method_t bge_methods[] = { 383 /* Device interface */ 384 DEVMETHOD(device_probe, bge_probe), 385 DEVMETHOD(device_attach, bge_attach), 386 DEVMETHOD(device_detach, bge_detach), 387 DEVMETHOD(device_shutdown, bge_shutdown), 388 DEVMETHOD(device_suspend, bge_suspend), 389 DEVMETHOD(device_resume, bge_resume), 390 391 /* bus interface */ 392 DEVMETHOD(bus_print_child, bus_generic_print_child), 393 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 394 395 /* MII interface */ 396 DEVMETHOD(miibus_readreg, bge_miibus_readreg), 397 DEVMETHOD(miibus_writereg, bge_miibus_writereg), 398 DEVMETHOD(miibus_statchg, bge_miibus_statchg), 399 400 { 0, 0 } 401 }; 402 403 static driver_t bge_driver = { 404 "bge", 405 bge_methods, 406 sizeof(struct bge_softc) 407 }; 408 409 static devclass_t bge_devclass; 410 411 DRIVER_MODULE(bge, pci, bge_driver, bge_devclass, 0, 0); 412 DRIVER_MODULE(miibus, bge, miibus_driver, miibus_devclass, 0, 0); 413 414 static int bge_fake_autoneg = 0; 415 static int bge_allow_asf = 1; 416 417 TUNABLE_INT("hw.bge.fake_autoneg", &bge_fake_autoneg); 418 TUNABLE_INT("hw.bge.allow_asf", &bge_allow_asf); 419 420 SYSCTL_NODE(_hw, OID_AUTO, bge, CTLFLAG_RD, 0, "BGE driver parameters"); 421 SYSCTL_INT(_hw_bge, OID_AUTO, fake_autoneg, CTLFLAG_RD, &bge_fake_autoneg, 0, 422 "Enable fake autonegotiation for certain blade systems"); 423 SYSCTL_INT(_hw_bge, OID_AUTO, allow_asf, CTLFLAG_RD, &bge_allow_asf, 0, 424 "Allow ASF mode if available"); 425 426 static uint32_t 427 bge_readmem_ind(struct bge_softc *sc, int off) 428 { 429 device_t dev; 430 uint32_t val; 431 432 dev = sc->bge_dev; 433 434 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4); 435 val = pci_read_config(dev, BGE_PCI_MEMWIN_DATA, 4); 436 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4); 437 return (val); 438 } 439 440 static void 441 bge_writemem_ind(struct bge_softc *sc, int off, int val) 442 { 443 device_t dev; 444 445 dev = sc->bge_dev; 446 447 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4); 448 pci_write_config(dev, BGE_PCI_MEMWIN_DATA, val, 4); 449 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4); 450 } 451 452 #ifdef notdef 453 static uint32_t 454 bge_readreg_ind(struct bge_softc *sc, int off) 455 { 456 device_t dev; 457 458 dev = sc->bge_dev; 459 460 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4); 461 return (pci_read_config(dev, BGE_PCI_REG_DATA, 4)); 462 } 463 #endif 464 465 static void 466 bge_writereg_ind(struct bge_softc *sc, int off, int val) 467 { 468 device_t dev; 469 470 dev = sc->bge_dev; 471 472 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4); 473 pci_write_config(dev, BGE_PCI_REG_DATA, val, 4); 474 } 475 476 static void 477 bge_writemem_direct(struct bge_softc *sc, int off, int val) 478 { 479 CSR_WRITE_4(sc, off, val); 480 } 481 482 /* 483 * Map a single buffer address. 484 */ 485 486 static void 487 bge_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 488 { 489 struct bge_dmamap_arg *ctx; 490 491 if (error) 492 return; 493 494 ctx = arg; 495 496 if (nseg > ctx->bge_maxsegs) { 497 ctx->bge_maxsegs = 0; 498 return; 499 } 500 501 ctx->bge_busaddr = segs->ds_addr; 502 } 503 504 /* 505 * Read a byte of data stored in the EEPROM at address 'addr.' The 506 * BCM570x supports both the traditional bitbang interface and an 507 * auto access interface for reading the EEPROM. We use the auto 508 * access method. 509 */ 510 static uint8_t 511 bge_eeprom_getbyte(struct bge_softc *sc, int addr, uint8_t *dest) 512 { 513 int i; 514 uint32_t byte = 0; 515 516 /* 517 * Enable use of auto EEPROM access so we can avoid 518 * having to use the bitbang method. 519 */ 520 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM); 521 522 /* Reset the EEPROM, load the clock period. */ 523 CSR_WRITE_4(sc, BGE_EE_ADDR, 524 BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL)); 525 DELAY(20); 526 527 /* Issue the read EEPROM command. */ 528 CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr); 529 530 /* Wait for completion */ 531 for(i = 0; i < BGE_TIMEOUT * 10; i++) { 532 DELAY(10); 533 if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE) 534 break; 535 } 536 537 if (i == BGE_TIMEOUT) { 538 device_printf(sc->bge_dev, "EEPROM read timed out\n"); 539 return (1); 540 } 541 542 /* Get result. */ 543 byte = CSR_READ_4(sc, BGE_EE_DATA); 544 545 *dest = (byte >> ((addr % 4) * 8)) & 0xFF; 546 547 return (0); 548 } 549 550 /* 551 * Read a sequence of bytes from the EEPROM. 552 */ 553 static int 554 bge_read_eeprom(struct bge_softc *sc, caddr_t dest, int off, int cnt) 555 { 556 int i, error = 0; 557 uint8_t byte = 0; 558 559 for (i = 0; i < cnt; i++) { 560 error = bge_eeprom_getbyte(sc, off + i, &byte); 561 if (error) 562 break; 563 *(dest + i) = byte; 564 } 565 566 return (error ? 1 : 0); 567 } 568 569 static int 570 bge_miibus_readreg(device_t dev, int phy, int reg) 571 { 572 struct bge_softc *sc; 573 uint32_t val, autopoll; 574 int i; 575 576 sc = device_get_softc(dev); 577 578 /* 579 * Broadcom's own driver always assumes the internal 580 * PHY is at GMII address 1. On some chips, the PHY responds 581 * to accesses at all addresses, which could cause us to 582 * bogusly attach the PHY 32 times at probe type. Always 583 * restricting the lookup to address 1 is simpler than 584 * trying to figure out which chips revisions should be 585 * special-cased. 586 */ 587 if (phy != 1) 588 return (0); 589 590 /* Reading with autopolling on may trigger PCI errors */ 591 autopoll = CSR_READ_4(sc, BGE_MI_MODE); 592 if (autopoll & BGE_MIMODE_AUTOPOLL) { 593 BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); 594 DELAY(40); 595 } 596 597 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ|BGE_MICOMM_BUSY| 598 BGE_MIPHY(phy)|BGE_MIREG(reg)); 599 600 for (i = 0; i < BGE_TIMEOUT; i++) { 601 val = CSR_READ_4(sc, BGE_MI_COMM); 602 if (!(val & BGE_MICOMM_BUSY)) 603 break; 604 } 605 606 if (i == BGE_TIMEOUT) { 607 device_printf(sc->bge_dev, "PHY read timed out\n"); 608 val = 0; 609 goto done; 610 } 611 612 val = CSR_READ_4(sc, BGE_MI_COMM); 613 614 done: 615 if (autopoll & BGE_MIMODE_AUTOPOLL) { 616 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); 617 DELAY(40); 618 } 619 620 if (val & BGE_MICOMM_READFAIL) 621 return (0); 622 623 return (val & 0xFFFF); 624 } 625 626 static int 627 bge_miibus_writereg(device_t dev, int phy, int reg, int val) 628 { 629 struct bge_softc *sc; 630 uint32_t autopoll; 631 int i; 632 633 sc = device_get_softc(dev); 634 635 /* Reading with autopolling on may trigger PCI errors */ 636 autopoll = CSR_READ_4(sc, BGE_MI_MODE); 637 if (autopoll & BGE_MIMODE_AUTOPOLL) { 638 BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); 639 DELAY(40); 640 } 641 642 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE|BGE_MICOMM_BUSY| 643 BGE_MIPHY(phy)|BGE_MIREG(reg)|val); 644 645 for (i = 0; i < BGE_TIMEOUT; i++) { 646 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) 647 break; 648 } 649 650 if (autopoll & BGE_MIMODE_AUTOPOLL) { 651 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); 652 DELAY(40); 653 } 654 655 if (i == BGE_TIMEOUT) { 656 device_printf(sc->bge_dev, "PHY read timed out\n"); 657 return (0); 658 } 659 660 return (0); 661 } 662 663 static void 664 bge_miibus_statchg(device_t dev) 665 { 666 struct bge_softc *sc; 667 struct mii_data *mii; 668 sc = device_get_softc(dev); 669 mii = device_get_softc(sc->bge_miibus); 670 671 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE); 672 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) 673 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII); 674 else 675 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII); 676 677 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 678 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); 679 else 680 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); 681 } 682 683 /* 684 * Intialize a standard receive ring descriptor. 685 */ 686 static int 687 bge_newbuf_std(struct bge_softc *sc, int i, struct mbuf *m) 688 { 689 struct mbuf *m_new = NULL; 690 struct bge_rx_bd *r; 691 struct bge_dmamap_arg ctx; 692 int error; 693 694 if (m == NULL) { 695 m_new = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 696 if (m_new == NULL) 697 return (ENOBUFS); 698 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 699 } else { 700 m_new = m; 701 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 702 m_new->m_data = m_new->m_ext.ext_buf; 703 } 704 705 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) 706 m_adj(m_new, ETHER_ALIGN); 707 sc->bge_cdata.bge_rx_std_chain[i] = m_new; 708 r = &sc->bge_ldata.bge_rx_std_ring[i]; 709 ctx.bge_maxsegs = 1; 710 ctx.sc = sc; 711 error = bus_dmamap_load(sc->bge_cdata.bge_mtag, 712 sc->bge_cdata.bge_rx_std_dmamap[i], mtod(m_new, void *), 713 m_new->m_len, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); 714 if (error || ctx.bge_maxsegs == 0) { 715 if (m == NULL) { 716 sc->bge_cdata.bge_rx_std_chain[i] = NULL; 717 m_freem(m_new); 718 } 719 return (ENOMEM); 720 } 721 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(ctx.bge_busaddr); 722 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(ctx.bge_busaddr); 723 r->bge_flags = BGE_RXBDFLAG_END; 724 r->bge_len = m_new->m_len; 725 r->bge_idx = i; 726 727 bus_dmamap_sync(sc->bge_cdata.bge_mtag, 728 sc->bge_cdata.bge_rx_std_dmamap[i], 729 BUS_DMASYNC_PREREAD); 730 731 return (0); 732 } 733 734 /* 735 * Initialize a jumbo receive ring descriptor. This allocates 736 * a jumbo buffer from the pool managed internally by the driver. 737 */ 738 static int 739 bge_newbuf_jumbo(struct bge_softc *sc, int i, struct mbuf *m) 740 { 741 bus_dma_segment_t segs[BGE_NSEG_JUMBO]; 742 struct bge_extrx_bd *r; 743 struct mbuf *m_new = NULL; 744 int nsegs; 745 int error; 746 747 if (m == NULL) { 748 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 749 if (m_new == NULL) 750 return (ENOBUFS); 751 752 m_cljget(m_new, M_DONTWAIT, MJUM9BYTES); 753 if (!(m_new->m_flags & M_EXT)) { 754 m_freem(m_new); 755 return (ENOBUFS); 756 } 757 m_new->m_len = m_new->m_pkthdr.len = MJUM9BYTES; 758 } else { 759 m_new = m; 760 m_new->m_len = m_new->m_pkthdr.len = MJUM9BYTES; 761 m_new->m_data = m_new->m_ext.ext_buf; 762 } 763 764 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) 765 m_adj(m_new, ETHER_ALIGN); 766 767 error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_mtag_jumbo, 768 sc->bge_cdata.bge_rx_jumbo_dmamap[i], 769 m_new, segs, &nsegs, BUS_DMA_NOWAIT); 770 if (error) { 771 if (m == NULL) 772 m_freem(m_new); 773 return (error); 774 } 775 sc->bge_cdata.bge_rx_jumbo_chain[i] = m_new; 776 777 /* 778 * Fill in the extended RX buffer descriptor. 779 */ 780 r = &sc->bge_ldata.bge_rx_jumbo_ring[i]; 781 r->bge_flags = BGE_RXBDFLAG_JUMBO_RING|BGE_RXBDFLAG_END; 782 r->bge_idx = i; 783 r->bge_len3 = r->bge_len2 = r->bge_len1 = 0; 784 switch (nsegs) { 785 case 4: 786 r->bge_addr3.bge_addr_lo = BGE_ADDR_LO(segs[3].ds_addr); 787 r->bge_addr3.bge_addr_hi = BGE_ADDR_HI(segs[3].ds_addr); 788 r->bge_len3 = segs[3].ds_len; 789 case 3: 790 r->bge_addr2.bge_addr_lo = BGE_ADDR_LO(segs[2].ds_addr); 791 r->bge_addr2.bge_addr_hi = BGE_ADDR_HI(segs[2].ds_addr); 792 r->bge_len2 = segs[2].ds_len; 793 case 2: 794 r->bge_addr1.bge_addr_lo = BGE_ADDR_LO(segs[1].ds_addr); 795 r->bge_addr1.bge_addr_hi = BGE_ADDR_HI(segs[1].ds_addr); 796 r->bge_len1 = segs[1].ds_len; 797 case 1: 798 r->bge_addr0.bge_addr_lo = BGE_ADDR_LO(segs[0].ds_addr); 799 r->bge_addr0.bge_addr_hi = BGE_ADDR_HI(segs[0].ds_addr); 800 r->bge_len0 = segs[0].ds_len; 801 break; 802 default: 803 panic("%s: %d segments\n", __func__, nsegs); 804 } 805 806 bus_dmamap_sync(sc->bge_cdata.bge_mtag, 807 sc->bge_cdata.bge_rx_jumbo_dmamap[i], 808 BUS_DMASYNC_PREREAD); 809 810 return (0); 811 } 812 813 /* 814 * The standard receive ring has 512 entries in it. At 2K per mbuf cluster, 815 * that's 1MB or memory, which is a lot. For now, we fill only the first 816 * 256 ring entries and hope that our CPU is fast enough to keep up with 817 * the NIC. 818 */ 819 static int 820 bge_init_rx_ring_std(struct bge_softc *sc) 821 { 822 int i; 823 824 for (i = 0; i < BGE_SSLOTS; i++) { 825 if (bge_newbuf_std(sc, i, NULL) == ENOBUFS) 826 return (ENOBUFS); 827 }; 828 829 bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, 830 sc->bge_cdata.bge_rx_std_ring_map, 831 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 832 833 sc->bge_std = i - 1; 834 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); 835 836 return (0); 837 } 838 839 static void 840 bge_free_rx_ring_std(struct bge_softc *sc) 841 { 842 int i; 843 844 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 845 if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) { 846 bus_dmamap_sync(sc->bge_cdata.bge_mtag, 847 sc->bge_cdata.bge_rx_std_dmamap[i], 848 BUS_DMASYNC_POSTREAD); 849 bus_dmamap_unload(sc->bge_cdata.bge_mtag, 850 sc->bge_cdata.bge_rx_std_dmamap[i]); 851 m_freem(sc->bge_cdata.bge_rx_std_chain[i]); 852 sc->bge_cdata.bge_rx_std_chain[i] = NULL; 853 } 854 bzero((char *)&sc->bge_ldata.bge_rx_std_ring[i], 855 sizeof(struct bge_rx_bd)); 856 } 857 } 858 859 static int 860 bge_init_rx_ring_jumbo(struct bge_softc *sc) 861 { 862 struct bge_rcb *rcb; 863 int i; 864 865 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 866 if (bge_newbuf_jumbo(sc, i, NULL) == ENOBUFS) 867 return (ENOBUFS); 868 }; 869 870 bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, 871 sc->bge_cdata.bge_rx_jumbo_ring_map, 872 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 873 874 sc->bge_jumbo = i - 1; 875 876 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb; 877 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 878 BGE_RCB_FLAG_USE_EXT_RX_BD); 879 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); 880 881 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); 882 883 return (0); 884 } 885 886 static void 887 bge_free_rx_ring_jumbo(struct bge_softc *sc) 888 { 889 int i; 890 891 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 892 if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) { 893 bus_dmamap_sync(sc->bge_cdata.bge_mtag_jumbo, 894 sc->bge_cdata.bge_rx_jumbo_dmamap[i], 895 BUS_DMASYNC_POSTREAD); 896 bus_dmamap_unload(sc->bge_cdata.bge_mtag_jumbo, 897 sc->bge_cdata.bge_rx_jumbo_dmamap[i]); 898 m_freem(sc->bge_cdata.bge_rx_jumbo_chain[i]); 899 sc->bge_cdata.bge_rx_jumbo_chain[i] = NULL; 900 } 901 bzero((char *)&sc->bge_ldata.bge_rx_jumbo_ring[i], 902 sizeof(struct bge_extrx_bd)); 903 } 904 } 905 906 static void 907 bge_free_tx_ring(struct bge_softc *sc) 908 { 909 int i; 910 911 if (sc->bge_ldata.bge_tx_ring == NULL) 912 return; 913 914 for (i = 0; i < BGE_TX_RING_CNT; i++) { 915 if (sc->bge_cdata.bge_tx_chain[i] != NULL) { 916 bus_dmamap_sync(sc->bge_cdata.bge_mtag, 917 sc->bge_cdata.bge_tx_dmamap[i], 918 BUS_DMASYNC_POSTWRITE); 919 bus_dmamap_unload(sc->bge_cdata.bge_mtag, 920 sc->bge_cdata.bge_tx_dmamap[i]); 921 m_freem(sc->bge_cdata.bge_tx_chain[i]); 922 sc->bge_cdata.bge_tx_chain[i] = NULL; 923 } 924 bzero((char *)&sc->bge_ldata.bge_tx_ring[i], 925 sizeof(struct bge_tx_bd)); 926 } 927 } 928 929 static int 930 bge_init_tx_ring(struct bge_softc *sc) 931 { 932 sc->bge_txcnt = 0; 933 sc->bge_tx_saved_considx = 0; 934 935 /* Initialize transmit producer index for host-memory send ring. */ 936 sc->bge_tx_prodidx = 0; 937 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx); 938 939 /* 5700 b2 errata */ 940 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) 941 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx); 942 943 /* NIC-memory send ring not used; initialize to zero. */ 944 CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); 945 /* 5700 b2 errata */ 946 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) 947 CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); 948 949 return (0); 950 } 951 952 static void 953 bge_setpromisc(struct bge_softc *sc) 954 { 955 struct ifnet *ifp; 956 957 BGE_LOCK_ASSERT(sc); 958 959 ifp = sc->bge_ifp; 960 961 /* Enable or disable promiscuous mode as needed. */ 962 if (ifp->if_flags & IFF_PROMISC) 963 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); 964 else 965 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); 966 } 967 968 static void 969 bge_setmulti(struct bge_softc *sc) 970 { 971 struct ifnet *ifp; 972 struct ifmultiaddr *ifma; 973 uint32_t hashes[4] = { 0, 0, 0, 0 }; 974 int h, i; 975 976 BGE_LOCK_ASSERT(sc); 977 978 ifp = sc->bge_ifp; 979 980 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 981 for (i = 0; i < 4; i++) 982 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF); 983 return; 984 } 985 986 /* First, zot all the existing filters. */ 987 for (i = 0; i < 4; i++) 988 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0); 989 990 /* Now program new ones. */ 991 IF_ADDR_LOCK(ifp); 992 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 993 if (ifma->ifma_addr->sa_family != AF_LINK) 994 continue; 995 h = ether_crc32_le(LLADDR((struct sockaddr_dl *) 996 ifma->ifma_addr), ETHER_ADDR_LEN) & 0x7F; 997 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F); 998 } 999 IF_ADDR_UNLOCK(ifp); 1000 1001 for (i = 0; i < 4; i++) 1002 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]); 1003 } 1004 1005 static void 1006 bge_sig_pre_reset(sc, type) 1007 struct bge_softc *sc; 1008 int type; 1009 { 1010 /* 1011 * Some chips don't like this so only do this if ASF is enabled 1012 */ 1013 if (sc->bge_asf_mode) 1014 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); 1015 1016 if (sc->bge_asf_mode & ASF_NEW_HANDSHAKE) { 1017 switch (type) { 1018 case BGE_RESET_START: 1019 bge_writemem_ind(sc, BGE_SDI_STATUS, 0x1); /* START */ 1020 break; 1021 case BGE_RESET_STOP: 1022 bge_writemem_ind(sc, BGE_SDI_STATUS, 0x2); /* UNLOAD */ 1023 break; 1024 } 1025 } 1026 } 1027 1028 static void 1029 bge_sig_post_reset(sc, type) 1030 struct bge_softc *sc; 1031 int type; 1032 { 1033 if (sc->bge_asf_mode & ASF_NEW_HANDSHAKE) { 1034 switch (type) { 1035 case BGE_RESET_START: 1036 bge_writemem_ind(sc, BGE_SDI_STATUS, 0x80000001); 1037 /* START DONE */ 1038 break; 1039 case BGE_RESET_STOP: 1040 bge_writemem_ind(sc, BGE_SDI_STATUS, 0x80000002); 1041 break; 1042 } 1043 } 1044 } 1045 1046 static void 1047 bge_sig_legacy(sc, type) 1048 struct bge_softc *sc; 1049 int type; 1050 { 1051 if (sc->bge_asf_mode) { 1052 switch (type) { 1053 case BGE_RESET_START: 1054 bge_writemem_ind(sc, BGE_SDI_STATUS, 0x1); /* START */ 1055 break; 1056 case BGE_RESET_STOP: 1057 bge_writemem_ind(sc, BGE_SDI_STATUS, 0x2); /* UNLOAD */ 1058 break; 1059 } 1060 } 1061 } 1062 1063 void bge_stop_fw(struct bge_softc *); 1064 void 1065 bge_stop_fw(sc) 1066 struct bge_softc *sc; 1067 { 1068 int i; 1069 1070 if (sc->bge_asf_mode) { 1071 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM_FW, BGE_FW_PAUSE); 1072 CSR_WRITE_4(sc, BGE_CPU_EVENT, 1073 CSR_READ_4(sc, BGE_CPU_EVENT) != (1 << 14)); 1074 1075 for (i = 0; i < 100; i++ ) { 1076 if (!(CSR_READ_4(sc, BGE_CPU_EVENT) & (1 << 14))) 1077 break; 1078 DELAY(10); 1079 } 1080 } 1081 } 1082 1083 /* 1084 * Do endian, PCI and DMA initialization. Also check the on-board ROM 1085 * self-test results. 1086 */ 1087 static int 1088 bge_chipinit(struct bge_softc *sc) 1089 { 1090 uint32_t dma_rw_ctl; 1091 int i; 1092 1093 /* Set endianness before we access any non-PCI registers. */ 1094 pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL, BGE_INIT, 4); 1095 1096 /* 1097 * Check the 'ROM failed' bit on the RX CPU to see if 1098 * self-tests passed. 1099 */ 1100 if (CSR_READ_4(sc, BGE_RXCPU_MODE) & BGE_RXCPUMODE_ROMFAIL) { 1101 device_printf(sc->bge_dev, "RX CPU self-diagnostics failed!\n"); 1102 return (ENODEV); 1103 } 1104 1105 /* Clear the MAC control register */ 1106 CSR_WRITE_4(sc, BGE_MAC_MODE, 0); 1107 1108 /* 1109 * Clear the MAC statistics block in the NIC's 1110 * internal memory. 1111 */ 1112 for (i = BGE_STATS_BLOCK; 1113 i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t)) 1114 BGE_MEMWIN_WRITE(sc, i, 0); 1115 1116 for (i = BGE_STATUS_BLOCK; 1117 i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t)) 1118 BGE_MEMWIN_WRITE(sc, i, 0); 1119 1120 /* Set up the PCI DMA control register. */ 1121 if (sc->bge_flags & BGE_FLAG_PCIE) { 1122 /* PCI Express bus */ 1123 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | 1124 (0xf << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | 1125 (0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT); 1126 } else if (sc->bge_flags & BGE_FLAG_PCIX) { 1127 /* PCI-X bus */ 1128 if (BGE_IS_5714_FAMILY(sc)) { 1129 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD; 1130 dma_rw_ctl &= ~BGE_PCIDMARWCTL_ONEDMA_ATONCE; /* XXX */ 1131 /* XXX magic values, Broadcom-supplied Linux driver */ 1132 if (sc->bge_asicrev == BGE_ASICREV_BCM5780) 1133 dma_rw_ctl |= (1 << 20) | (1 << 18) | 1134 BGE_PCIDMARWCTL_ONEDMA_ATONCE; 1135 else 1136 dma_rw_ctl |= (1 << 20) | (1 << 18) | (1 << 15); 1137 1138 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) 1139 /* 1140 * The 5704 uses a different encoding of read/write 1141 * watermarks. 1142 */ 1143 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | 1144 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | 1145 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT); 1146 else 1147 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | 1148 (0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | 1149 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) | 1150 (0x0F); 1151 1152 /* 1153 * 5703 and 5704 need ONEDMA_AT_ONCE as a workaround 1154 * for hardware bugs. 1155 */ 1156 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 || 1157 sc->bge_asicrev == BGE_ASICREV_BCM5704) { 1158 uint32_t tmp; 1159 1160 tmp = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1f; 1161 if (tmp == 0x6 || tmp == 0x7) 1162 dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE; 1163 } 1164 } else 1165 /* Conventional PCI bus */ 1166 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | 1167 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | 1168 (0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) | 1169 (0x0F); 1170 1171 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 || 1172 sc->bge_asicrev == BGE_ASICREV_BCM5704 || 1173 sc->bge_asicrev == BGE_ASICREV_BCM5705) 1174 dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA; 1175 pci_write_config(sc->bge_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4); 1176 1177 /* 1178 * Set up general mode register. 1179 */ 1180 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS| 1181 BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS| 1182 BGE_MODECTL_TX_NO_PHDR_CSUM); 1183 1184 /* 1185 * Tell the firmware the driver is running 1186 */ 1187 if (sc->bge_asf_mode & ASF_STACKUP) 1188 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 1189 1190 /* 1191 * Disable memory write invalidate. Apparently it is not supported 1192 * properly by these devices. 1193 */ 1194 PCI_CLRBIT(sc->bge_dev, BGE_PCI_CMD, PCIM_CMD_MWIEN, 4); 1195 1196 #ifdef __brokenalpha__ 1197 /* 1198 * Must insure that we do not cross an 8K (bytes) boundary 1199 * for DMA reads. Our highest limit is 1K bytes. This is a 1200 * restriction on some ALPHA platforms with early revision 1201 * 21174 PCI chipsets, such as the AlphaPC 164lx 1202 */ 1203 PCI_SETBIT(sc->bge_dev, BGE_PCI_DMA_RW_CTL, 1204 BGE_PCI_READ_BNDRY_1024BYTES, 4); 1205 #endif 1206 1207 /* Set the timer prescaler (always 66Mhz) */ 1208 CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/); 1209 1210 return (0); 1211 } 1212 1213 static int 1214 bge_blockinit(struct bge_softc *sc) 1215 { 1216 struct bge_rcb *rcb; 1217 bus_size_t vrcb; 1218 bge_hostaddr taddr; 1219 uint32_t val; 1220 int i; 1221 1222 /* 1223 * Initialize the memory window pointer register so that 1224 * we can access the first 32K of internal NIC RAM. This will 1225 * allow us to set up the TX send ring RCBs and the RX return 1226 * ring RCBs, plus other things which live in NIC memory. 1227 */ 1228 CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0); 1229 1230 /* Note: the BCM5704 has a smaller mbuf space than other chips. */ 1231 1232 if (!(BGE_IS_5705_PLUS(sc))) { 1233 /* Configure mbuf memory pool */ 1234 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1); 1235 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) 1236 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000); 1237 else 1238 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); 1239 1240 /* Configure DMA resource pool */ 1241 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR, 1242 BGE_DMA_DESCRIPTORS); 1243 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000); 1244 } 1245 1246 /* Configure mbuf pool watermarks */ 1247 if (!(BGE_IS_5705_PLUS(sc))) { 1248 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0); 1249 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10); 1250 } else { 1251 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50); 1252 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20); 1253 } 1254 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60); 1255 1256 /* Configure DMA resource watermarks */ 1257 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5); 1258 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10); 1259 1260 /* Enable buffer manager */ 1261 if (!(BGE_IS_5705_PLUS(sc))) { 1262 CSR_WRITE_4(sc, BGE_BMAN_MODE, 1263 BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN); 1264 1265 /* Poll for buffer manager start indication */ 1266 for (i = 0; i < BGE_TIMEOUT; i++) { 1267 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE) 1268 break; 1269 DELAY(10); 1270 } 1271 1272 if (i == BGE_TIMEOUT) { 1273 device_printf(sc->bge_dev, 1274 "buffer manager failed to start\n"); 1275 return (ENXIO); 1276 } 1277 } 1278 1279 /* Enable flow-through queues */ 1280 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); 1281 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); 1282 1283 /* Wait until queue initialization is complete */ 1284 for (i = 0; i < BGE_TIMEOUT; i++) { 1285 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0) 1286 break; 1287 DELAY(10); 1288 } 1289 1290 if (i == BGE_TIMEOUT) { 1291 device_printf(sc->bge_dev, "flow-through queue init failed\n"); 1292 return (ENXIO); 1293 } 1294 1295 /* Initialize the standard RX ring control block */ 1296 rcb = &sc->bge_ldata.bge_info.bge_std_rx_rcb; 1297 rcb->bge_hostaddr.bge_addr_lo = 1298 BGE_ADDR_LO(sc->bge_ldata.bge_rx_std_ring_paddr); 1299 rcb->bge_hostaddr.bge_addr_hi = 1300 BGE_ADDR_HI(sc->bge_ldata.bge_rx_std_ring_paddr); 1301 bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, 1302 sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_PREREAD); 1303 if (BGE_IS_5705_PLUS(sc)) 1304 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0); 1305 else 1306 rcb->bge_maxlen_flags = 1307 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0); 1308 rcb->bge_nicaddr = BGE_STD_RX_RINGS; 1309 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi); 1310 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo); 1311 1312 CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); 1313 CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr); 1314 1315 /* 1316 * Initialize the jumbo RX ring control block 1317 * We set the 'ring disabled' bit in the flags 1318 * field until we're actually ready to start 1319 * using this ring (i.e. once we set the MTU 1320 * high enough to require it). 1321 */ 1322 if (BGE_IS_JUMBO_CAPABLE(sc)) { 1323 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb; 1324 1325 rcb->bge_hostaddr.bge_addr_lo = 1326 BGE_ADDR_LO(sc->bge_ldata.bge_rx_jumbo_ring_paddr); 1327 rcb->bge_hostaddr.bge_addr_hi = 1328 BGE_ADDR_HI(sc->bge_ldata.bge_rx_jumbo_ring_paddr); 1329 bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, 1330 sc->bge_cdata.bge_rx_jumbo_ring_map, 1331 BUS_DMASYNC_PREREAD); 1332 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 1333 BGE_RCB_FLAG_USE_EXT_RX_BD|BGE_RCB_FLAG_RING_DISABLED); 1334 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS; 1335 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI, 1336 rcb->bge_hostaddr.bge_addr_hi); 1337 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO, 1338 rcb->bge_hostaddr.bge_addr_lo); 1339 1340 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, 1341 rcb->bge_maxlen_flags); 1342 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr); 1343 1344 /* Set up dummy disabled mini ring RCB */ 1345 rcb = &sc->bge_ldata.bge_info.bge_mini_rx_rcb; 1346 rcb->bge_maxlen_flags = 1347 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED); 1348 CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS, 1349 rcb->bge_maxlen_flags); 1350 } 1351 1352 /* 1353 * Set the BD ring replentish thresholds. The recommended 1354 * values are 1/8th the number of descriptors allocated to 1355 * each ring. 1356 * XXX The 5754 requires a lower threshold, so it might be a 1357 * requirement of all 575x family chips. The Linux driver sets 1358 * the lower threshold for all 5705 family chips as well, but there 1359 * are reports that it might not need to be so strict. 1360 */ 1361 if (BGE_IS_5705_PLUS(sc)) 1362 val = 8; 1363 else 1364 val = BGE_STD_RX_RING_CNT / 8; 1365 CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, val); 1366 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH, BGE_JUMBO_RX_RING_CNT/8); 1367 1368 /* 1369 * Disable all unused send rings by setting the 'ring disabled' 1370 * bit in the flags field of all the TX send ring control blocks. 1371 * These are located in NIC memory. 1372 */ 1373 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB; 1374 for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) { 1375 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, 1376 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED)); 1377 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0); 1378 vrcb += sizeof(struct bge_rcb); 1379 } 1380 1381 /* Configure TX RCB 0 (we use only the first ring) */ 1382 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB; 1383 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_tx_ring_paddr); 1384 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); 1385 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); 1386 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 1387 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT)); 1388 if (!(BGE_IS_5705_PLUS(sc))) 1389 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, 1390 BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0)); 1391 1392 /* Disable all unused RX return rings */ 1393 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; 1394 for (i = 0; i < BGE_RX_RINGS_MAX; i++) { 1395 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0); 1396 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0); 1397 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, 1398 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 1399 BGE_RCB_FLAG_RING_DISABLED)); 1400 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0); 1401 CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO + 1402 (i * (sizeof(uint64_t))), 0); 1403 vrcb += sizeof(struct bge_rcb); 1404 } 1405 1406 /* Initialize RX ring indexes */ 1407 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, 0); 1408 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0); 1409 CSR_WRITE_4(sc, BGE_MBX_RX_MINI_PROD_LO, 0); 1410 1411 /* 1412 * Set up RX return ring 0 1413 * Note that the NIC address for RX return rings is 0x00000000. 1414 * The return rings live entirely within the host, so the 1415 * nicaddr field in the RCB isn't used. 1416 */ 1417 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; 1418 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_rx_return_ring_paddr); 1419 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); 1420 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); 1421 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0x00000000); 1422 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, 1423 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0)); 1424 1425 /* Set random backoff seed for TX */ 1426 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF, 1427 IF_LLADDR(sc->bge_ifp)[0] + IF_LLADDR(sc->bge_ifp)[1] + 1428 IF_LLADDR(sc->bge_ifp)[2] + IF_LLADDR(sc->bge_ifp)[3] + 1429 IF_LLADDR(sc->bge_ifp)[4] + IF_LLADDR(sc->bge_ifp)[5] + 1430 BGE_TX_BACKOFF_SEED_MASK); 1431 1432 /* Set inter-packet gap */ 1433 CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620); 1434 1435 /* 1436 * Specify which ring to use for packets that don't match 1437 * any RX rules. 1438 */ 1439 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08); 1440 1441 /* 1442 * Configure number of RX lists. One interrupt distribution 1443 * list, sixteen active lists, one bad frames class. 1444 */ 1445 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181); 1446 1447 /* Inialize RX list placement stats mask. */ 1448 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF); 1449 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1); 1450 1451 /* Disable host coalescing until we get it set up */ 1452 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000); 1453 1454 /* Poll to make sure it's shut down. */ 1455 for (i = 0; i < BGE_TIMEOUT; i++) { 1456 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE)) 1457 break; 1458 DELAY(10); 1459 } 1460 1461 if (i == BGE_TIMEOUT) { 1462 device_printf(sc->bge_dev, 1463 "host coalescing engine failed to idle\n"); 1464 return (ENXIO); 1465 } 1466 1467 /* Set up host coalescing defaults */ 1468 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks); 1469 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks); 1470 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds); 1471 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds); 1472 if (!(BGE_IS_5705_PLUS(sc))) { 1473 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0); 1474 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0); 1475 } 1476 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 1); 1477 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 1); 1478 1479 /* Set up address of statistics block */ 1480 if (!(BGE_IS_5705_PLUS(sc))) { 1481 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI, 1482 BGE_ADDR_HI(sc->bge_ldata.bge_stats_paddr)); 1483 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO, 1484 BGE_ADDR_LO(sc->bge_ldata.bge_stats_paddr)); 1485 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK); 1486 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK); 1487 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks); 1488 } 1489 1490 /* Set up address of status block */ 1491 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI, 1492 BGE_ADDR_HI(sc->bge_ldata.bge_status_block_paddr)); 1493 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO, 1494 BGE_ADDR_LO(sc->bge_ldata.bge_status_block_paddr)); 1495 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx = 0; 1496 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx = 0; 1497 1498 /* Turn on host coalescing state machine */ 1499 CSR_WRITE_4(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); 1500 1501 /* Turn on RX BD completion state machine and enable attentions */ 1502 CSR_WRITE_4(sc, BGE_RBDC_MODE, 1503 BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN); 1504 1505 /* Turn on RX list placement state machine */ 1506 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); 1507 1508 /* Turn on RX list selector state machine. */ 1509 if (!(BGE_IS_5705_PLUS(sc))) 1510 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); 1511 1512 /* Turn on DMA, clear stats */ 1513 CSR_WRITE_4(sc, BGE_MAC_MODE, BGE_MACMODE_TXDMA_ENB| 1514 BGE_MACMODE_RXDMA_ENB|BGE_MACMODE_RX_STATS_CLEAR| 1515 BGE_MACMODE_TX_STATS_CLEAR|BGE_MACMODE_RX_STATS_ENB| 1516 BGE_MACMODE_TX_STATS_ENB|BGE_MACMODE_FRMHDR_DMA_ENB| 1517 ((sc->bge_flags & BGE_FLAG_TBI) ? 1518 BGE_PORTMODE_TBI : BGE_PORTMODE_MII)); 1519 1520 /* Set misc. local control, enable interrupts on attentions */ 1521 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN); 1522 1523 #ifdef notdef 1524 /* Assert GPIO pins for PHY reset */ 1525 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0| 1526 BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2); 1527 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0| 1528 BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2); 1529 #endif 1530 1531 /* Turn on DMA completion state machine */ 1532 if (!(BGE_IS_5705_PLUS(sc))) 1533 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); 1534 1535 val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS; 1536 1537 /* Enable host coalescing bug fix. */ 1538 if (sc->bge_asicrev == BGE_ASICREV_BCM5755 || 1539 sc->bge_asicrev == BGE_ASICREV_BCM5787) 1540 val |= (1 << 29); 1541 1542 /* Turn on write DMA state machine */ 1543 CSR_WRITE_4(sc, BGE_WDMA_MODE, val); 1544 1545 /* Turn on read DMA state machine */ 1546 CSR_WRITE_4(sc, BGE_RDMA_MODE, 1547 BGE_RDMAMODE_ENABLE|BGE_RDMAMODE_ALL_ATTNS); 1548 1549 /* Turn on RX data completion state machine */ 1550 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); 1551 1552 /* Turn on RX BD initiator state machine */ 1553 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); 1554 1555 /* Turn on RX data and RX BD initiator state machine */ 1556 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE); 1557 1558 /* Turn on Mbuf cluster free state machine */ 1559 if (!(BGE_IS_5705_PLUS(sc))) 1560 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); 1561 1562 /* Turn on send BD completion state machine */ 1563 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); 1564 1565 /* Turn on send data completion state machine */ 1566 CSR_WRITE_4(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); 1567 1568 /* Turn on send data initiator state machine */ 1569 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); 1570 1571 /* Turn on send BD initiator state machine */ 1572 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); 1573 1574 /* Turn on send BD selector state machine */ 1575 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); 1576 1577 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF); 1578 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL, 1579 BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER); 1580 1581 /* ack/clear link change events */ 1582 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| 1583 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| 1584 BGE_MACSTAT_LINK_CHANGED); 1585 CSR_WRITE_4(sc, BGE_MI_STS, 0); 1586 1587 /* Enable PHY auto polling (for MII/GMII only) */ 1588 if (sc->bge_flags & BGE_FLAG_TBI) { 1589 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK); 1590 } else { 1591 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16); 1592 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && 1593 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) 1594 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, 1595 BGE_EVTENB_MI_INTERRUPT); 1596 } 1597 1598 /* 1599 * Clear any pending link state attention. 1600 * Otherwise some link state change events may be lost until attention 1601 * is cleared by bge_intr() -> bge_link_upd() sequence. 1602 * It's not necessary on newer BCM chips - perhaps enabling link 1603 * state change attentions implies clearing pending attention. 1604 */ 1605 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| 1606 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| 1607 BGE_MACSTAT_LINK_CHANGED); 1608 1609 /* Enable link state change attentions. */ 1610 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED); 1611 1612 return (0); 1613 } 1614 1615 const struct bge_revision * 1616 bge_lookup_rev(uint32_t chipid) 1617 { 1618 const struct bge_revision *br; 1619 1620 for (br = bge_revisions; br->br_name != NULL; br++) { 1621 if (br->br_chipid == chipid) 1622 return (br); 1623 } 1624 1625 for (br = bge_majorrevs; br->br_name != NULL; br++) { 1626 if (br->br_chipid == BGE_ASICREV(chipid)) 1627 return (br); 1628 } 1629 1630 return (NULL); 1631 } 1632 1633 const struct bge_vendor * 1634 bge_lookup_vendor(uint16_t vid) 1635 { 1636 const struct bge_vendor *v; 1637 1638 for (v = bge_vendors; v->v_name != NULL; v++) 1639 if (v->v_id == vid) 1640 return (v); 1641 1642 panic("%s: unknown vendor %d", __func__, vid); 1643 return (NULL); 1644 } 1645 1646 /* 1647 * Probe for a Broadcom chip. Check the PCI vendor and device IDs 1648 * against our list and return its name if we find a match. 1649 * 1650 * Note that since the Broadcom controller contains VPD support, we 1651 * try to get the device name string from the controller itself instead 1652 * of the compiled-in string. It guarantees we'll always announce the 1653 * right product name. We fall back to the compiled-in string when 1654 * VPD is unavailable or corrupt. 1655 */ 1656 static int 1657 bge_probe(device_t dev) 1658 { 1659 struct bge_type *t = bge_devs; 1660 struct bge_softc *sc = device_get_softc(dev); 1661 uint16_t vid, did; 1662 1663 sc->bge_dev = dev; 1664 vid = pci_get_vendor(dev); 1665 did = pci_get_device(dev); 1666 while(t->bge_vid != 0) { 1667 if ((vid == t->bge_vid) && (did == t->bge_did)) { 1668 char model[64], buf[96]; 1669 const struct bge_revision *br; 1670 const struct bge_vendor *v; 1671 const char *pname; 1672 uint32_t id; 1673 1674 id = pci_read_config(dev, BGE_PCI_MISC_CTL, 4) & 1675 BGE_PCIMISCCTL_ASICREV; 1676 br = bge_lookup_rev(id); 1677 v = bge_lookup_vendor(vid); 1678 if (pci_get_vpd_ident(dev, &pname)) 1679 snprintf(model, 64, "%s %s", 1680 v->v_name, 1681 br != NULL ? br->br_name : 1682 "NetXtreme Ethernet Controller"); 1683 else 1684 snprintf(model, 64, "%s", pname); 1685 snprintf(buf, 96, "%s, %sASIC rev. %#04x", model, 1686 br != NULL ? "" : "unknown ", id >> 16); 1687 device_set_desc_copy(dev, buf); 1688 if (pci_get_subvendor(dev) == DELL_VENDORID) 1689 sc->bge_flags |= BGE_FLAG_NO3LED; 1690 return (0); 1691 } 1692 t++; 1693 } 1694 1695 return (ENXIO); 1696 } 1697 1698 static void 1699 bge_dma_free(struct bge_softc *sc) 1700 { 1701 int i; 1702 1703 /* Destroy DMA maps for RX buffers. */ 1704 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 1705 if (sc->bge_cdata.bge_rx_std_dmamap[i]) 1706 bus_dmamap_destroy(sc->bge_cdata.bge_mtag, 1707 sc->bge_cdata.bge_rx_std_dmamap[i]); 1708 } 1709 1710 /* Destroy DMA maps for jumbo RX buffers. */ 1711 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 1712 if (sc->bge_cdata.bge_rx_jumbo_dmamap[i]) 1713 bus_dmamap_destroy(sc->bge_cdata.bge_mtag_jumbo, 1714 sc->bge_cdata.bge_rx_jumbo_dmamap[i]); 1715 } 1716 1717 /* Destroy DMA maps for TX buffers. */ 1718 for (i = 0; i < BGE_TX_RING_CNT; i++) { 1719 if (sc->bge_cdata.bge_tx_dmamap[i]) 1720 bus_dmamap_destroy(sc->bge_cdata.bge_mtag, 1721 sc->bge_cdata.bge_tx_dmamap[i]); 1722 } 1723 1724 if (sc->bge_cdata.bge_mtag) 1725 bus_dma_tag_destroy(sc->bge_cdata.bge_mtag); 1726 1727 1728 /* Destroy standard RX ring. */ 1729 if (sc->bge_cdata.bge_rx_std_ring_map) 1730 bus_dmamap_unload(sc->bge_cdata.bge_rx_std_ring_tag, 1731 sc->bge_cdata.bge_rx_std_ring_map); 1732 if (sc->bge_cdata.bge_rx_std_ring_map && sc->bge_ldata.bge_rx_std_ring) 1733 bus_dmamem_free(sc->bge_cdata.bge_rx_std_ring_tag, 1734 sc->bge_ldata.bge_rx_std_ring, 1735 sc->bge_cdata.bge_rx_std_ring_map); 1736 1737 if (sc->bge_cdata.bge_rx_std_ring_tag) 1738 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_std_ring_tag); 1739 1740 /* Destroy jumbo RX ring. */ 1741 if (sc->bge_cdata.bge_rx_jumbo_ring_map) 1742 bus_dmamap_unload(sc->bge_cdata.bge_rx_jumbo_ring_tag, 1743 sc->bge_cdata.bge_rx_jumbo_ring_map); 1744 1745 if (sc->bge_cdata.bge_rx_jumbo_ring_map && 1746 sc->bge_ldata.bge_rx_jumbo_ring) 1747 bus_dmamem_free(sc->bge_cdata.bge_rx_jumbo_ring_tag, 1748 sc->bge_ldata.bge_rx_jumbo_ring, 1749 sc->bge_cdata.bge_rx_jumbo_ring_map); 1750 1751 if (sc->bge_cdata.bge_rx_jumbo_ring_tag) 1752 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_jumbo_ring_tag); 1753 1754 /* Destroy RX return ring. */ 1755 if (sc->bge_cdata.bge_rx_return_ring_map) 1756 bus_dmamap_unload(sc->bge_cdata.bge_rx_return_ring_tag, 1757 sc->bge_cdata.bge_rx_return_ring_map); 1758 1759 if (sc->bge_cdata.bge_rx_return_ring_map && 1760 sc->bge_ldata.bge_rx_return_ring) 1761 bus_dmamem_free(sc->bge_cdata.bge_rx_return_ring_tag, 1762 sc->bge_ldata.bge_rx_return_ring, 1763 sc->bge_cdata.bge_rx_return_ring_map); 1764 1765 if (sc->bge_cdata.bge_rx_return_ring_tag) 1766 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_return_ring_tag); 1767 1768 /* Destroy TX ring. */ 1769 if (sc->bge_cdata.bge_tx_ring_map) 1770 bus_dmamap_unload(sc->bge_cdata.bge_tx_ring_tag, 1771 sc->bge_cdata.bge_tx_ring_map); 1772 1773 if (sc->bge_cdata.bge_tx_ring_map && sc->bge_ldata.bge_tx_ring) 1774 bus_dmamem_free(sc->bge_cdata.bge_tx_ring_tag, 1775 sc->bge_ldata.bge_tx_ring, 1776 sc->bge_cdata.bge_tx_ring_map); 1777 1778 if (sc->bge_cdata.bge_tx_ring_tag) 1779 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_ring_tag); 1780 1781 /* Destroy status block. */ 1782 if (sc->bge_cdata.bge_status_map) 1783 bus_dmamap_unload(sc->bge_cdata.bge_status_tag, 1784 sc->bge_cdata.bge_status_map); 1785 1786 if (sc->bge_cdata.bge_status_map && sc->bge_ldata.bge_status_block) 1787 bus_dmamem_free(sc->bge_cdata.bge_status_tag, 1788 sc->bge_ldata.bge_status_block, 1789 sc->bge_cdata.bge_status_map); 1790 1791 if (sc->bge_cdata.bge_status_tag) 1792 bus_dma_tag_destroy(sc->bge_cdata.bge_status_tag); 1793 1794 /* Destroy statistics block. */ 1795 if (sc->bge_cdata.bge_stats_map) 1796 bus_dmamap_unload(sc->bge_cdata.bge_stats_tag, 1797 sc->bge_cdata.bge_stats_map); 1798 1799 if (sc->bge_cdata.bge_stats_map && sc->bge_ldata.bge_stats) 1800 bus_dmamem_free(sc->bge_cdata.bge_stats_tag, 1801 sc->bge_ldata.bge_stats, 1802 sc->bge_cdata.bge_stats_map); 1803 1804 if (sc->bge_cdata.bge_stats_tag) 1805 bus_dma_tag_destroy(sc->bge_cdata.bge_stats_tag); 1806 1807 /* Destroy the parent tag. */ 1808 if (sc->bge_cdata.bge_parent_tag) 1809 bus_dma_tag_destroy(sc->bge_cdata.bge_parent_tag); 1810 } 1811 1812 static int 1813 bge_dma_alloc(device_t dev) 1814 { 1815 struct bge_dmamap_arg ctx; 1816 struct bge_softc *sc; 1817 int i, error; 1818 1819 sc = device_get_softc(dev); 1820 1821 /* 1822 * Allocate the parent bus DMA tag appropriate for PCI. 1823 */ 1824 error = bus_dma_tag_create(bus_get_dma_tag(sc->bge_dev),/* parent */ 1825 1, 0, /* alignment, boundary */ 1826 BUS_SPACE_MAXADDR, /* lowaddr */ 1827 BUS_SPACE_MAXADDR, /* highaddr */ 1828 NULL, NULL, /* filter, filterarg */ 1829 MAXBSIZE, BGE_NSEG_NEW, /* maxsize, nsegments */ 1830 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 1831 0, /* flags */ 1832 NULL, NULL, /* lockfunc, lockarg */ 1833 &sc->bge_cdata.bge_parent_tag); 1834 1835 if (error != 0) { 1836 device_printf(sc->bge_dev, 1837 "could not allocate parent dma tag\n"); 1838 return (ENOMEM); 1839 } 1840 1841 /* 1842 * Create tag for RX mbufs. 1843 */ 1844 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 1845 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 1846 NULL, MCLBYTES * BGE_NSEG_NEW, BGE_NSEG_NEW, MCLBYTES, 1847 BUS_DMA_ALLOCNOW, NULL, NULL, &sc->bge_cdata.bge_mtag); 1848 1849 if (error) { 1850 device_printf(sc->bge_dev, "could not allocate dma tag\n"); 1851 return (ENOMEM); 1852 } 1853 1854 /* Create DMA maps for RX buffers. */ 1855 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 1856 error = bus_dmamap_create(sc->bge_cdata.bge_mtag, 0, 1857 &sc->bge_cdata.bge_rx_std_dmamap[i]); 1858 if (error) { 1859 device_printf(sc->bge_dev, 1860 "can't create DMA map for RX\n"); 1861 return (ENOMEM); 1862 } 1863 } 1864 1865 /* Create DMA maps for TX buffers. */ 1866 for (i = 0; i < BGE_TX_RING_CNT; i++) { 1867 error = bus_dmamap_create(sc->bge_cdata.bge_mtag, 0, 1868 &sc->bge_cdata.bge_tx_dmamap[i]); 1869 if (error) { 1870 device_printf(sc->bge_dev, 1871 "can't create DMA map for RX\n"); 1872 return (ENOMEM); 1873 } 1874 } 1875 1876 /* Create tag for standard RX ring. */ 1877 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1878 PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 1879 NULL, BGE_STD_RX_RING_SZ, 1, BGE_STD_RX_RING_SZ, 0, 1880 NULL, NULL, &sc->bge_cdata.bge_rx_std_ring_tag); 1881 1882 if (error) { 1883 device_printf(sc->bge_dev, "could not allocate dma tag\n"); 1884 return (ENOMEM); 1885 } 1886 1887 /* Allocate DMA'able memory for standard RX ring. */ 1888 error = bus_dmamem_alloc(sc->bge_cdata.bge_rx_std_ring_tag, 1889 (void **)&sc->bge_ldata.bge_rx_std_ring, BUS_DMA_NOWAIT, 1890 &sc->bge_cdata.bge_rx_std_ring_map); 1891 if (error) 1892 return (ENOMEM); 1893 1894 bzero((char *)sc->bge_ldata.bge_rx_std_ring, BGE_STD_RX_RING_SZ); 1895 1896 /* Load the address of the standard RX ring. */ 1897 ctx.bge_maxsegs = 1; 1898 ctx.sc = sc; 1899 1900 error = bus_dmamap_load(sc->bge_cdata.bge_rx_std_ring_tag, 1901 sc->bge_cdata.bge_rx_std_ring_map, sc->bge_ldata.bge_rx_std_ring, 1902 BGE_STD_RX_RING_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); 1903 1904 if (error) 1905 return (ENOMEM); 1906 1907 sc->bge_ldata.bge_rx_std_ring_paddr = ctx.bge_busaddr; 1908 1909 /* Create tags for jumbo mbufs. */ 1910 if (BGE_IS_JUMBO_CAPABLE(sc)) { 1911 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1912 1, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 1913 NULL, MJUM9BYTES, BGE_NSEG_JUMBO, PAGE_SIZE, 1914 0, NULL, NULL, &sc->bge_cdata.bge_mtag_jumbo); 1915 if (error) { 1916 device_printf(sc->bge_dev, 1917 "could not allocate jumbo dma tag\n"); 1918 return (ENOMEM); 1919 } 1920 1921 /* Create tag for jumbo RX ring. */ 1922 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1923 PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 1924 NULL, BGE_JUMBO_RX_RING_SZ, 1, BGE_JUMBO_RX_RING_SZ, 0, 1925 NULL, NULL, &sc->bge_cdata.bge_rx_jumbo_ring_tag); 1926 1927 if (error) { 1928 device_printf(sc->bge_dev, 1929 "could not allocate jumbo ring dma tag\n"); 1930 return (ENOMEM); 1931 } 1932 1933 /* Allocate DMA'able memory for jumbo RX ring. */ 1934 error = bus_dmamem_alloc(sc->bge_cdata.bge_rx_jumbo_ring_tag, 1935 (void **)&sc->bge_ldata.bge_rx_jumbo_ring, 1936 BUS_DMA_NOWAIT | BUS_DMA_ZERO, 1937 &sc->bge_cdata.bge_rx_jumbo_ring_map); 1938 if (error) 1939 return (ENOMEM); 1940 1941 /* Load the address of the jumbo RX ring. */ 1942 ctx.bge_maxsegs = 1; 1943 ctx.sc = sc; 1944 1945 error = bus_dmamap_load(sc->bge_cdata.bge_rx_jumbo_ring_tag, 1946 sc->bge_cdata.bge_rx_jumbo_ring_map, 1947 sc->bge_ldata.bge_rx_jumbo_ring, BGE_JUMBO_RX_RING_SZ, 1948 bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); 1949 1950 if (error) 1951 return (ENOMEM); 1952 1953 sc->bge_ldata.bge_rx_jumbo_ring_paddr = ctx.bge_busaddr; 1954 1955 /* Create DMA maps for jumbo RX buffers. */ 1956 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 1957 error = bus_dmamap_create(sc->bge_cdata.bge_mtag_jumbo, 1958 0, &sc->bge_cdata.bge_rx_jumbo_dmamap[i]); 1959 if (error) { 1960 device_printf(sc->bge_dev, 1961 "can't create DMA map for jumbo RX\n"); 1962 return (ENOMEM); 1963 } 1964 } 1965 1966 } 1967 1968 /* Create tag for RX return ring. */ 1969 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1970 PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 1971 NULL, BGE_RX_RTN_RING_SZ(sc), 1, BGE_RX_RTN_RING_SZ(sc), 0, 1972 NULL, NULL, &sc->bge_cdata.bge_rx_return_ring_tag); 1973 1974 if (error) { 1975 device_printf(sc->bge_dev, "could not allocate dma tag\n"); 1976 return (ENOMEM); 1977 } 1978 1979 /* Allocate DMA'able memory for RX return ring. */ 1980 error = bus_dmamem_alloc(sc->bge_cdata.bge_rx_return_ring_tag, 1981 (void **)&sc->bge_ldata.bge_rx_return_ring, BUS_DMA_NOWAIT, 1982 &sc->bge_cdata.bge_rx_return_ring_map); 1983 if (error) 1984 return (ENOMEM); 1985 1986 bzero((char *)sc->bge_ldata.bge_rx_return_ring, 1987 BGE_RX_RTN_RING_SZ(sc)); 1988 1989 /* Load the address of the RX return ring. */ 1990 ctx.bge_maxsegs = 1; 1991 ctx.sc = sc; 1992 1993 error = bus_dmamap_load(sc->bge_cdata.bge_rx_return_ring_tag, 1994 sc->bge_cdata.bge_rx_return_ring_map, 1995 sc->bge_ldata.bge_rx_return_ring, BGE_RX_RTN_RING_SZ(sc), 1996 bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); 1997 1998 if (error) 1999 return (ENOMEM); 2000 2001 sc->bge_ldata.bge_rx_return_ring_paddr = ctx.bge_busaddr; 2002 2003 /* Create tag for TX ring. */ 2004 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 2005 PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 2006 NULL, BGE_TX_RING_SZ, 1, BGE_TX_RING_SZ, 0, NULL, NULL, 2007 &sc->bge_cdata.bge_tx_ring_tag); 2008 2009 if (error) { 2010 device_printf(sc->bge_dev, "could not allocate dma tag\n"); 2011 return (ENOMEM); 2012 } 2013 2014 /* Allocate DMA'able memory for TX ring. */ 2015 error = bus_dmamem_alloc(sc->bge_cdata.bge_tx_ring_tag, 2016 (void **)&sc->bge_ldata.bge_tx_ring, BUS_DMA_NOWAIT, 2017 &sc->bge_cdata.bge_tx_ring_map); 2018 if (error) 2019 return (ENOMEM); 2020 2021 bzero((char *)sc->bge_ldata.bge_tx_ring, BGE_TX_RING_SZ); 2022 2023 /* Load the address of the TX ring. */ 2024 ctx.bge_maxsegs = 1; 2025 ctx.sc = sc; 2026 2027 error = bus_dmamap_load(sc->bge_cdata.bge_tx_ring_tag, 2028 sc->bge_cdata.bge_tx_ring_map, sc->bge_ldata.bge_tx_ring, 2029 BGE_TX_RING_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); 2030 2031 if (error) 2032 return (ENOMEM); 2033 2034 sc->bge_ldata.bge_tx_ring_paddr = ctx.bge_busaddr; 2035 2036 /* Create tag for status block. */ 2037 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 2038 PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 2039 NULL, BGE_STATUS_BLK_SZ, 1, BGE_STATUS_BLK_SZ, 0, 2040 NULL, NULL, &sc->bge_cdata.bge_status_tag); 2041 2042 if (error) { 2043 device_printf(sc->bge_dev, "could not allocate dma tag\n"); 2044 return (ENOMEM); 2045 } 2046 2047 /* Allocate DMA'able memory for status block. */ 2048 error = bus_dmamem_alloc(sc->bge_cdata.bge_status_tag, 2049 (void **)&sc->bge_ldata.bge_status_block, BUS_DMA_NOWAIT, 2050 &sc->bge_cdata.bge_status_map); 2051 if (error) 2052 return (ENOMEM); 2053 2054 bzero((char *)sc->bge_ldata.bge_status_block, BGE_STATUS_BLK_SZ); 2055 2056 /* Load the address of the status block. */ 2057 ctx.sc = sc; 2058 ctx.bge_maxsegs = 1; 2059 2060 error = bus_dmamap_load(sc->bge_cdata.bge_status_tag, 2061 sc->bge_cdata.bge_status_map, sc->bge_ldata.bge_status_block, 2062 BGE_STATUS_BLK_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); 2063 2064 if (error) 2065 return (ENOMEM); 2066 2067 sc->bge_ldata.bge_status_block_paddr = ctx.bge_busaddr; 2068 2069 /* Create tag for statistics block. */ 2070 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 2071 PAGE_SIZE, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 2072 NULL, BGE_STATS_SZ, 1, BGE_STATS_SZ, 0, NULL, NULL, 2073 &sc->bge_cdata.bge_stats_tag); 2074 2075 if (error) { 2076 device_printf(sc->bge_dev, "could not allocate dma tag\n"); 2077 return (ENOMEM); 2078 } 2079 2080 /* Allocate DMA'able memory for statistics block. */ 2081 error = bus_dmamem_alloc(sc->bge_cdata.bge_stats_tag, 2082 (void **)&sc->bge_ldata.bge_stats, BUS_DMA_NOWAIT, 2083 &sc->bge_cdata.bge_stats_map); 2084 if (error) 2085 return (ENOMEM); 2086 2087 bzero((char *)sc->bge_ldata.bge_stats, BGE_STATS_SZ); 2088 2089 /* Load the address of the statstics block. */ 2090 ctx.sc = sc; 2091 ctx.bge_maxsegs = 1; 2092 2093 error = bus_dmamap_load(sc->bge_cdata.bge_stats_tag, 2094 sc->bge_cdata.bge_stats_map, sc->bge_ldata.bge_stats, 2095 BGE_STATS_SZ, bge_dma_map_addr, &ctx, BUS_DMA_NOWAIT); 2096 2097 if (error) 2098 return (ENOMEM); 2099 2100 sc->bge_ldata.bge_stats_paddr = ctx.bge_busaddr; 2101 2102 return (0); 2103 } 2104 2105 /* 2106 * Return true if this device has more than one port. 2107 */ 2108 static int 2109 bge_has_multiple_ports(struct bge_softc *sc) 2110 { 2111 device_t dev = sc->bge_dev; 2112 u_int b, s, f, fscan; 2113 2114 b = pci_get_bus(dev); 2115 s = pci_get_slot(dev); 2116 f = pci_get_function(dev); 2117 for (fscan = 0; fscan <= PCI_FUNCMAX; fscan++) 2118 if (fscan != f && pci_find_bsf(b, s, fscan) != NULL) 2119 return (1); 2120 return (0); 2121 } 2122 2123 /* 2124 * Return true if MSI can be used with this device. 2125 */ 2126 static int 2127 bge_can_use_msi(struct bge_softc *sc) 2128 { 2129 int can_use_msi = 0; 2130 2131 switch (sc->bge_asicrev) { 2132 case BGE_ASICREV_BCM5714: 2133 /* 2134 * Apparently, MSI doesn't work when this chip is configured 2135 * in single-port mode. 2136 */ 2137 if (bge_has_multiple_ports(sc)) 2138 can_use_msi = 1; 2139 break; 2140 case BGE_ASICREV_BCM5750: 2141 if (sc->bge_chiprev != BGE_CHIPREV_5750_AX && 2142 sc->bge_chiprev != BGE_CHIPREV_5750_BX) 2143 can_use_msi = 1; 2144 break; 2145 case BGE_ASICREV_BCM5752: 2146 case BGE_ASICREV_BCM5780: 2147 can_use_msi = 1; 2148 break; 2149 } 2150 return (can_use_msi); 2151 } 2152 2153 static int 2154 bge_attach(device_t dev) 2155 { 2156 struct ifnet *ifp; 2157 struct bge_softc *sc; 2158 uint32_t hwcfg = 0; 2159 uint32_t mac_tmp = 0; 2160 u_char eaddr[6]; 2161 int error = 0, msicount, rid, trys, reg; 2162 2163 sc = device_get_softc(dev); 2164 sc->bge_dev = dev; 2165 2166 /* 2167 * Map control/status registers. 2168 */ 2169 pci_enable_busmaster(dev); 2170 2171 rid = BGE_PCI_BAR0; 2172 sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 2173 RF_ACTIVE|PCI_RF_DENSE); 2174 2175 if (sc->bge_res == NULL) { 2176 device_printf (sc->bge_dev, "couldn't map memory\n"); 2177 error = ENXIO; 2178 goto fail; 2179 } 2180 2181 sc->bge_btag = rman_get_bustag(sc->bge_res); 2182 sc->bge_bhandle = rman_get_bushandle(sc->bge_res); 2183 2184 /* Save ASIC rev. */ 2185 2186 sc->bge_chipid = 2187 pci_read_config(dev, BGE_PCI_MISC_CTL, 4) & 2188 BGE_PCIMISCCTL_ASICREV; 2189 sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid); 2190 sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid); 2191 2192 /* Save chipset family. */ 2193 switch (sc->bge_asicrev) { 2194 case BGE_ASICREV_BCM5700: 2195 case BGE_ASICREV_BCM5701: 2196 case BGE_ASICREV_BCM5703: 2197 case BGE_ASICREV_BCM5704: 2198 sc->bge_flags |= BGE_FLAG_5700_FAMILY | BGE_FLAG_JUMBO; 2199 break; 2200 2201 case BGE_ASICREV_BCM5714_A0: 2202 case BGE_ASICREV_BCM5780: 2203 case BGE_ASICREV_BCM5714: 2204 sc->bge_flags |= BGE_FLAG_5714_FAMILY /* | BGE_FLAG_JUMBO */; 2205 /* Fall through */ 2206 2207 case BGE_ASICREV_BCM5750: 2208 case BGE_ASICREV_BCM5752: 2209 case BGE_ASICREV_BCM5755: 2210 case BGE_ASICREV_BCM5787: 2211 sc->bge_flags |= BGE_FLAG_575X_PLUS; 2212 /* Fall through */ 2213 2214 case BGE_ASICREV_BCM5705: 2215 sc->bge_flags |= BGE_FLAG_5705_PLUS; 2216 break; 2217 } 2218 2219 /* 2220 * Check if this is a PCI-X or PCI Express device. 2221 */ 2222 #if __FreeBSD_version > 700010 2223 if (pci_find_extcap(dev, PCIY_EXPRESS, ®) == 0) { 2224 /* 2225 * Found a PCI Express capabilities register, this 2226 * must be a PCI Express device. 2227 */ 2228 if (reg != 0) 2229 sc->bge_flags |= BGE_FLAG_PCIE; 2230 } else if (pci_find_extcap(dev, PCIY_PCIX, ®) == 0) { 2231 if (reg != 0) 2232 sc->bge_flags |= BGE_FLAG_PCIX; 2233 } 2234 2235 #else 2236 if (BGE_IS_5705_PLUS(sc)) { 2237 reg = pci_read_config(dev, BGE_PCIE_CAPID_REG, 4); 2238 if ((reg & 0xff) == BGE_PCIE_CAPID) 2239 sc->bge_flags |= BGE_FLAG_PCIE; 2240 } else { 2241 /* 2242 * Check if the device is in PCI-X Mode. 2243 * (This bit is not valid on PCI Express controllers.) 2244 */ 2245 if ((pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4) & 2246 BGE_PCISTATE_PCI_BUSMODE) == 0) 2247 sc->bge_flags |= BGE_FLAG_PCIX; 2248 } 2249 #endif 2250 2251 /* 2252 * Allocate the interrupt, using MSI if possible. These devices 2253 * support 8 MSI messages, but only the first one is used in 2254 * normal operation. 2255 */ 2256 if (bge_can_use_msi(sc)) { 2257 msicount = pci_msi_count(dev); 2258 if (msicount > 1) 2259 msicount = 1; 2260 } else 2261 msicount = 0; 2262 if (msicount == 1 && pci_alloc_msi(dev, &msicount) == 0) { 2263 rid = 1; 2264 sc->bge_flags |= BGE_FLAG_MSI; 2265 } else 2266 rid = 0; 2267 2268 sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 2269 RF_SHAREABLE | RF_ACTIVE); 2270 2271 if (sc->bge_irq == NULL) { 2272 device_printf(sc->bge_dev, "couldn't map interrupt\n"); 2273 error = ENXIO; 2274 goto fail; 2275 } 2276 2277 BGE_LOCK_INIT(sc, device_get_nameunit(dev)); 2278 2279 /* Try to reset the chip. */ 2280 if (bge_reset(sc)) { 2281 device_printf(sc->bge_dev, "chip reset failed\n"); 2282 bge_release_resources(sc); 2283 error = ENXIO; 2284 goto fail; 2285 } 2286 2287 sc->bge_asf_mode = 0; 2288 if (bge_allow_asf && (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) 2289 == BGE_MAGIC_NUMBER)) { 2290 if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG) 2291 & BGE_HWCFG_ASF) { 2292 sc->bge_asf_mode |= ASF_ENABLE; 2293 sc->bge_asf_mode |= ASF_STACKUP; 2294 if (sc->bge_asicrev == BGE_ASICREV_BCM5750) { 2295 sc->bge_asf_mode |= ASF_NEW_HANDSHAKE; 2296 } 2297 } 2298 } 2299 2300 /* Try to reset the chip again the nice way. */ 2301 bge_stop_fw(sc); 2302 bge_sig_pre_reset(sc, BGE_RESET_STOP); 2303 if (bge_reset(sc)) { 2304 device_printf(sc->bge_dev, "chip reset failed\n"); 2305 bge_release_resources(sc); 2306 error = ENXIO; 2307 goto fail; 2308 } 2309 2310 bge_sig_legacy(sc, BGE_RESET_STOP); 2311 bge_sig_post_reset(sc, BGE_RESET_STOP); 2312 2313 if (bge_chipinit(sc)) { 2314 device_printf(sc->bge_dev, "chip initialization failed\n"); 2315 bge_release_resources(sc); 2316 error = ENXIO; 2317 goto fail; 2318 } 2319 2320 /* 2321 * Get station address from the EEPROM. 2322 */ 2323 mac_tmp = bge_readmem_ind(sc, 0x0c14); 2324 if ((mac_tmp >> 16) == 0x484b) { 2325 eaddr[0] = (u_char)(mac_tmp >> 8); 2326 eaddr[1] = (u_char)mac_tmp; 2327 mac_tmp = bge_readmem_ind(sc, 0x0c18); 2328 eaddr[2] = (u_char)(mac_tmp >> 24); 2329 eaddr[3] = (u_char)(mac_tmp >> 16); 2330 eaddr[4] = (u_char)(mac_tmp >> 8); 2331 eaddr[5] = (u_char)mac_tmp; 2332 } else if (bge_read_eeprom(sc, eaddr, 2333 BGE_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { 2334 device_printf(sc->bge_dev, "failed to read station address\n"); 2335 bge_release_resources(sc); 2336 error = ENXIO; 2337 goto fail; 2338 } 2339 2340 /* 5705 limits RX return ring to 512 entries. */ 2341 if (BGE_IS_5705_PLUS(sc)) 2342 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705; 2343 else 2344 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT; 2345 2346 if (bge_dma_alloc(dev)) { 2347 device_printf(sc->bge_dev, 2348 "failed to allocate DMA resources\n"); 2349 bge_release_resources(sc); 2350 error = ENXIO; 2351 goto fail; 2352 } 2353 2354 /* Set default tuneable values. */ 2355 sc->bge_stat_ticks = BGE_TICKS_PER_SEC; 2356 sc->bge_rx_coal_ticks = 150; 2357 sc->bge_tx_coal_ticks = 150; 2358 sc->bge_rx_max_coal_bds = 10; 2359 sc->bge_tx_max_coal_bds = 10; 2360 2361 /* Set up ifnet structure */ 2362 ifp = sc->bge_ifp = if_alloc(IFT_ETHER); 2363 if (ifp == NULL) { 2364 device_printf(sc->bge_dev, "failed to if_alloc()\n"); 2365 bge_release_resources(sc); 2366 error = ENXIO; 2367 goto fail; 2368 } 2369 ifp->if_softc = sc; 2370 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 2371 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 2372 ifp->if_ioctl = bge_ioctl; 2373 ifp->if_start = bge_start; 2374 ifp->if_init = bge_init; 2375 ifp->if_mtu = ETHERMTU; 2376 ifp->if_snd.ifq_drv_maxlen = BGE_TX_RING_CNT - 1; 2377 IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen); 2378 IFQ_SET_READY(&ifp->if_snd); 2379 ifp->if_hwassist = BGE_CSUM_FEATURES; 2380 ifp->if_capabilities = IFCAP_HWCSUM | IFCAP_VLAN_HWTAGGING | 2381 IFCAP_VLAN_MTU | IFCAP_VLAN_HWCSUM; 2382 ifp->if_capenable = ifp->if_capabilities; 2383 #ifdef DEVICE_POLLING 2384 ifp->if_capabilities |= IFCAP_POLLING; 2385 #endif 2386 2387 /* 2388 * 5700 B0 chips do not support checksumming correctly due 2389 * to hardware bugs. 2390 */ 2391 if (sc->bge_chipid == BGE_CHIPID_BCM5700_B0) { 2392 ifp->if_capabilities &= ~IFCAP_HWCSUM; 2393 ifp->if_capenable &= IFCAP_HWCSUM; 2394 ifp->if_hwassist = 0; 2395 } 2396 2397 /* 2398 * Figure out what sort of media we have by checking the 2399 * hardware config word in the first 32k of NIC internal memory, 2400 * or fall back to examining the EEPROM if necessary. 2401 * Note: on some BCM5700 cards, this value appears to be unset. 2402 * If that's the case, we have to rely on identifying the NIC 2403 * by its PCI subsystem ID, as we do below for the SysKonnect 2404 * SK-9D41. 2405 */ 2406 if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER) 2407 hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG); 2408 else { 2409 if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET, 2410 sizeof(hwcfg))) { 2411 device_printf(sc->bge_dev, "failed to read EEPROM\n"); 2412 bge_release_resources(sc); 2413 error = ENXIO; 2414 goto fail; 2415 } 2416 hwcfg = ntohl(hwcfg); 2417 } 2418 2419 if ((hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) 2420 sc->bge_flags |= BGE_FLAG_TBI; 2421 2422 /* The SysKonnect SK-9D41 is a 1000baseSX card. */ 2423 if ((pci_read_config(dev, BGE_PCI_SUBSYS, 4) >> 16) == SK_SUBSYSID_9D41) 2424 sc->bge_flags |= BGE_FLAG_TBI; 2425 2426 if (sc->bge_flags & BGE_FLAG_TBI) { 2427 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK, 2428 bge_ifmedia_upd, bge_ifmedia_sts); 2429 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL); 2430 ifmedia_add(&sc->bge_ifmedia, 2431 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL); 2432 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); 2433 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO); 2434 sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media; 2435 } else { 2436 /* 2437 * Do transceiver setup and tell the firmware the 2438 * driver is down so we can try to get access the 2439 * probe if ASF is running. Retry a couple of times 2440 * if we get a conflict with the ASF firmware accessing 2441 * the PHY. 2442 */ 2443 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 2444 again: 2445 bge_asf_driver_up(sc); 2446 2447 trys = 0; 2448 if (mii_phy_probe(dev, &sc->bge_miibus, 2449 bge_ifmedia_upd, bge_ifmedia_sts)) { 2450 if (trys++ < 4) { 2451 device_printf(sc->bge_dev, "Try again\n"); 2452 bge_miibus_writereg(sc->bge_dev, 1, MII_BMCR, BMCR_RESET); 2453 goto again; 2454 } 2455 2456 device_printf(sc->bge_dev, "MII without any PHY!\n"); 2457 bge_release_resources(sc); 2458 error = ENXIO; 2459 goto fail; 2460 } 2461 2462 /* 2463 * Now tell the firmware we are going up after probing the PHY 2464 */ 2465 if (sc->bge_asf_mode & ASF_STACKUP) 2466 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 2467 } 2468 2469 /* 2470 * When using the BCM5701 in PCI-X mode, data corruption has 2471 * been observed in the first few bytes of some received packets. 2472 * Aligning the packet buffer in memory eliminates the corruption. 2473 * Unfortunately, this misaligns the packet payloads. On platforms 2474 * which do not support unaligned accesses, we will realign the 2475 * payloads by copying the received packets. 2476 */ 2477 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 && 2478 sc->bge_flags & BGE_FLAG_PCIX) 2479 sc->bge_flags |= BGE_FLAG_RX_ALIGNBUG; 2480 2481 /* 2482 * Call MI attach routine. 2483 */ 2484 ether_ifattach(ifp, eaddr); 2485 callout_init_mtx(&sc->bge_stat_ch, &sc->bge_mtx, 0); 2486 2487 /* 2488 * Hookup IRQ last. 2489 */ 2490 error = bus_setup_intr(dev, sc->bge_irq, INTR_TYPE_NET | INTR_MPSAFE, 2491 bge_intr, sc, &sc->bge_intrhand); 2492 2493 if (error) { 2494 bge_detach(dev); 2495 device_printf(sc->bge_dev, "couldn't set up irq\n"); 2496 } 2497 2498 bge_add_sysctls(sc); 2499 2500 fail: 2501 return (error); 2502 } 2503 2504 static int 2505 bge_detach(device_t dev) 2506 { 2507 struct bge_softc *sc; 2508 struct ifnet *ifp; 2509 2510 sc = device_get_softc(dev); 2511 ifp = sc->bge_ifp; 2512 2513 #ifdef DEVICE_POLLING 2514 if (ifp->if_capenable & IFCAP_POLLING) 2515 ether_poll_deregister(ifp); 2516 #endif 2517 2518 BGE_LOCK(sc); 2519 bge_stop(sc); 2520 bge_reset(sc); 2521 BGE_UNLOCK(sc); 2522 2523 callout_drain(&sc->bge_stat_ch); 2524 2525 ether_ifdetach(ifp); 2526 2527 if (sc->bge_flags & BGE_FLAG_TBI) { 2528 ifmedia_removeall(&sc->bge_ifmedia); 2529 } else { 2530 bus_generic_detach(dev); 2531 device_delete_child(dev, sc->bge_miibus); 2532 } 2533 2534 bge_release_resources(sc); 2535 2536 return (0); 2537 } 2538 2539 static void 2540 bge_release_resources(struct bge_softc *sc) 2541 { 2542 device_t dev; 2543 2544 dev = sc->bge_dev; 2545 2546 if (sc->bge_intrhand != NULL) 2547 bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand); 2548 2549 if (sc->bge_irq != NULL) 2550 bus_release_resource(dev, SYS_RES_IRQ, 2551 sc->bge_flags & BGE_FLAG_MSI ? 1 : 0, sc->bge_irq); 2552 2553 if (sc->bge_flags & BGE_FLAG_MSI) 2554 pci_release_msi(dev); 2555 2556 if (sc->bge_res != NULL) 2557 bus_release_resource(dev, SYS_RES_MEMORY, 2558 BGE_PCI_BAR0, sc->bge_res); 2559 2560 if (sc->bge_ifp != NULL) 2561 if_free(sc->bge_ifp); 2562 2563 bge_dma_free(sc); 2564 2565 if (mtx_initialized(&sc->bge_mtx)) /* XXX */ 2566 BGE_LOCK_DESTROY(sc); 2567 } 2568 2569 static int 2570 bge_reset(struct bge_softc *sc) 2571 { 2572 device_t dev; 2573 uint32_t cachesize, command, pcistate, reset; 2574 void (*write_op)(struct bge_softc *, int, int); 2575 int i, val = 0; 2576 2577 dev = sc->bge_dev; 2578 2579 if (BGE_IS_5705_PLUS(sc) && !BGE_IS_5714_FAMILY(sc)) { 2580 if (sc->bge_flags & BGE_FLAG_PCIE) 2581 write_op = bge_writemem_direct; 2582 else 2583 write_op = bge_writemem_ind; 2584 } else 2585 write_op = bge_writereg_ind; 2586 2587 /* Save some important PCI state. */ 2588 cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4); 2589 command = pci_read_config(dev, BGE_PCI_CMD, 4); 2590 pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4); 2591 2592 pci_write_config(dev, BGE_PCI_MISC_CTL, 2593 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| 2594 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4); 2595 2596 /* Disable fastboot on controllers that support it. */ 2597 if (sc->bge_asicrev == BGE_ASICREV_BCM5752 || 2598 sc->bge_asicrev == BGE_ASICREV_BCM5755 || 2599 sc->bge_asicrev == BGE_ASICREV_BCM5787) { 2600 if (bootverbose) 2601 device_printf(sc->bge_dev, "Disabling fastboot\n"); 2602 CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0); 2603 } 2604 2605 /* 2606 * Write the magic number to SRAM at offset 0xB50. 2607 * When firmware finishes its initialization it will 2608 * write ~BGE_MAGIC_NUMBER to the same location. 2609 */ 2610 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); 2611 2612 reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1); 2613 2614 /* XXX: Broadcom Linux driver. */ 2615 if (sc->bge_flags & BGE_FLAG_PCIE) { 2616 if (CSR_READ_4(sc, 0x7e2c) == 0x60) /* PCIE 1.0 */ 2617 CSR_WRITE_4(sc, 0x7e2c, 0x20); 2618 if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) { 2619 /* Prevent PCIE link training during global reset */ 2620 CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29)); 2621 reset |= (1<<29); 2622 } 2623 } 2624 2625 /* 2626 * Set GPHY Power Down Override to leave GPHY 2627 * powered up in D0 uninitialized. 2628 */ 2629 if (BGE_IS_5705_PLUS(sc)) 2630 reset |= 0x04000000; 2631 2632 /* Issue global reset */ 2633 write_op(sc, BGE_MISC_CFG, reset); 2634 2635 DELAY(1000); 2636 2637 /* XXX: Broadcom Linux driver. */ 2638 if (sc->bge_flags & BGE_FLAG_PCIE) { 2639 if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) { 2640 uint32_t v; 2641 2642 DELAY(500000); /* wait for link training to complete */ 2643 v = pci_read_config(dev, 0xc4, 4); 2644 pci_write_config(dev, 0xc4, v | (1<<15), 4); 2645 } 2646 /* 2647 * Set PCIE max payload size to 128 bytes and clear error 2648 * status. 2649 */ 2650 pci_write_config(dev, 0xd8, 0xf5000, 4); 2651 } 2652 2653 /* Reset some of the PCI state that got zapped by reset. */ 2654 pci_write_config(dev, BGE_PCI_MISC_CTL, 2655 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| 2656 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4); 2657 pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4); 2658 pci_write_config(dev, BGE_PCI_CMD, command, 4); 2659 write_op(sc, BGE_MISC_CFG, (65 << 1)); 2660 2661 /* Re-enable MSI, if neccesary, and enable the memory arbiter. */ 2662 if (BGE_IS_5714_FAMILY(sc)) { 2663 uint32_t val; 2664 2665 /* This chip disables MSI on reset. */ 2666 if (sc->bge_flags & BGE_FLAG_MSI) { 2667 val = pci_read_config(dev, BGE_PCI_MSI_CTL, 2); 2668 pci_write_config(dev, BGE_PCI_MSI_CTL, 2669 val | PCIM_MSICTRL_MSI_ENABLE, 2); 2670 val = CSR_READ_4(sc, BGE_MSI_MODE); 2671 CSR_WRITE_4(sc, BGE_MSI_MODE, 2672 val | BGE_MSIMODE_ENABLE); 2673 } 2674 val = CSR_READ_4(sc, BGE_MARB_MODE); 2675 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val); 2676 } else 2677 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); 2678 2679 /* 2680 * Poll until we see the 1's complement of the magic number. 2681 * This indicates that the firmware initialization 2682 * is complete. 2683 */ 2684 for (i = 0; i < BGE_TIMEOUT; i++) { 2685 val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM); 2686 if (val == ~BGE_MAGIC_NUMBER) 2687 break; 2688 DELAY(10); 2689 } 2690 2691 if (i == BGE_TIMEOUT) { 2692 device_printf(sc->bge_dev, "firmware handshake timed out, " 2693 "found 0x%08x\n", val); 2694 } 2695 2696 /* 2697 * XXX Wait for the value of the PCISTATE register to 2698 * return to its original pre-reset state. This is a 2699 * fairly good indicator of reset completion. If we don't 2700 * wait for the reset to fully complete, trying to read 2701 * from the device's non-PCI registers may yield garbage 2702 * results. 2703 */ 2704 for (i = 0; i < BGE_TIMEOUT; i++) { 2705 if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate) 2706 break; 2707 DELAY(10); 2708 } 2709 2710 if (sc->bge_flags & BGE_FLAG_PCIE) { 2711 reset = bge_readmem_ind(sc, 0x7c00); 2712 bge_writemem_ind(sc, 0x7c00, reset | (1 << 25)); 2713 } 2714 2715 /* Fix up byte swapping. */ 2716 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS| 2717 BGE_MODECTL_BYTESWAP_DATA); 2718 2719 /* Tell the ASF firmware we are up */ 2720 if (sc->bge_asf_mode & ASF_STACKUP) 2721 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 2722 2723 CSR_WRITE_4(sc, BGE_MAC_MODE, 0); 2724 2725 /* 2726 * The 5704 in TBI mode apparently needs some special 2727 * adjustment to insure the SERDES drive level is set 2728 * to 1.2V. 2729 */ 2730 if (sc->bge_asicrev == BGE_ASICREV_BCM5704 && 2731 sc->bge_flags & BGE_FLAG_TBI) { 2732 uint32_t serdescfg; 2733 2734 serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG); 2735 serdescfg = (serdescfg & ~0xFFF) | 0x880; 2736 CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg); 2737 } 2738 2739 /* XXX: Broadcom Linux driver. */ 2740 if (sc->bge_flags & BGE_FLAG_PCIE && 2741 sc->bge_chipid != BGE_CHIPID_BCM5750_A0) { 2742 uint32_t v; 2743 2744 v = CSR_READ_4(sc, 0x7c00); 2745 CSR_WRITE_4(sc, 0x7c00, v | (1<<25)); 2746 } 2747 DELAY(10000); 2748 2749 return(0); 2750 } 2751 2752 /* 2753 * Frame reception handling. This is called if there's a frame 2754 * on the receive return list. 2755 * 2756 * Note: we have to be able to handle two possibilities here: 2757 * 1) the frame is from the jumbo receive ring 2758 * 2) the frame is from the standard receive ring 2759 */ 2760 2761 static void 2762 bge_rxeof(struct bge_softc *sc) 2763 { 2764 struct ifnet *ifp; 2765 int stdcnt = 0, jumbocnt = 0; 2766 2767 BGE_LOCK_ASSERT(sc); 2768 2769 /* Nothing to do. */ 2770 if (sc->bge_rx_saved_considx == 2771 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx) 2772 return; 2773 2774 ifp = sc->bge_ifp; 2775 2776 bus_dmamap_sync(sc->bge_cdata.bge_rx_return_ring_tag, 2777 sc->bge_cdata.bge_rx_return_ring_map, BUS_DMASYNC_POSTREAD); 2778 bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, 2779 sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_POSTREAD); 2780 if (BGE_IS_JUMBO_CAPABLE(sc)) 2781 bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, 2782 sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_POSTREAD); 2783 2784 while(sc->bge_rx_saved_considx != 2785 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx) { 2786 struct bge_rx_bd *cur_rx; 2787 uint32_t rxidx; 2788 struct mbuf *m = NULL; 2789 uint16_t vlan_tag = 0; 2790 int have_tag = 0; 2791 2792 #ifdef DEVICE_POLLING 2793 if (ifp->if_capenable & IFCAP_POLLING) { 2794 if (sc->rxcycles <= 0) 2795 break; 2796 sc->rxcycles--; 2797 } 2798 #endif 2799 2800 cur_rx = 2801 &sc->bge_ldata.bge_rx_return_ring[sc->bge_rx_saved_considx]; 2802 2803 rxidx = cur_rx->bge_idx; 2804 BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt); 2805 2806 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) { 2807 have_tag = 1; 2808 vlan_tag = cur_rx->bge_vlan_tag; 2809 } 2810 2811 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) { 2812 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT); 2813 bus_dmamap_sync(sc->bge_cdata.bge_mtag_jumbo, 2814 sc->bge_cdata.bge_rx_jumbo_dmamap[rxidx], 2815 BUS_DMASYNC_POSTREAD); 2816 bus_dmamap_unload(sc->bge_cdata.bge_mtag_jumbo, 2817 sc->bge_cdata.bge_rx_jumbo_dmamap[rxidx]); 2818 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx]; 2819 sc->bge_cdata.bge_rx_jumbo_chain[rxidx] = NULL; 2820 jumbocnt++; 2821 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { 2822 ifp->if_ierrors++; 2823 bge_newbuf_jumbo(sc, sc->bge_jumbo, m); 2824 continue; 2825 } 2826 if (bge_newbuf_jumbo(sc, 2827 sc->bge_jumbo, NULL) == ENOBUFS) { 2828 ifp->if_ierrors++; 2829 bge_newbuf_jumbo(sc, sc->bge_jumbo, m); 2830 continue; 2831 } 2832 } else { 2833 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT); 2834 bus_dmamap_sync(sc->bge_cdata.bge_mtag, 2835 sc->bge_cdata.bge_rx_std_dmamap[rxidx], 2836 BUS_DMASYNC_POSTREAD); 2837 bus_dmamap_unload(sc->bge_cdata.bge_mtag, 2838 sc->bge_cdata.bge_rx_std_dmamap[rxidx]); 2839 m = sc->bge_cdata.bge_rx_std_chain[rxidx]; 2840 sc->bge_cdata.bge_rx_std_chain[rxidx] = NULL; 2841 stdcnt++; 2842 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { 2843 ifp->if_ierrors++; 2844 bge_newbuf_std(sc, sc->bge_std, m); 2845 continue; 2846 } 2847 if (bge_newbuf_std(sc, sc->bge_std, 2848 NULL) == ENOBUFS) { 2849 ifp->if_ierrors++; 2850 bge_newbuf_std(sc, sc->bge_std, m); 2851 continue; 2852 } 2853 } 2854 2855 ifp->if_ipackets++; 2856 #ifndef __NO_STRICT_ALIGNMENT 2857 /* 2858 * For architectures with strict alignment we must make sure 2859 * the payload is aligned. 2860 */ 2861 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) { 2862 bcopy(m->m_data, m->m_data + ETHER_ALIGN, 2863 cur_rx->bge_len); 2864 m->m_data += ETHER_ALIGN; 2865 } 2866 #endif 2867 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN; 2868 m->m_pkthdr.rcvif = ifp; 2869 2870 if (ifp->if_capenable & IFCAP_RXCSUM) { 2871 if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) { 2872 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; 2873 if ((cur_rx->bge_ip_csum ^ 0xffff) == 0) 2874 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2875 } 2876 if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM && 2877 m->m_pkthdr.len >= ETHER_MIN_NOPAD) { 2878 m->m_pkthdr.csum_data = 2879 cur_rx->bge_tcp_udp_csum; 2880 m->m_pkthdr.csum_flags |= 2881 CSUM_DATA_VALID | CSUM_PSEUDO_HDR; 2882 } 2883 } 2884 2885 /* 2886 * If we received a packet with a vlan tag, 2887 * attach that information to the packet. 2888 */ 2889 if (have_tag) { 2890 m->m_pkthdr.ether_vtag = vlan_tag; 2891 m->m_flags |= M_VLANTAG; 2892 } 2893 2894 BGE_UNLOCK(sc); 2895 (*ifp->if_input)(ifp, m); 2896 BGE_LOCK(sc); 2897 } 2898 2899 if (stdcnt > 0) 2900 bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, 2901 sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_PREWRITE); 2902 2903 if (BGE_IS_JUMBO_CAPABLE(sc) && jumbocnt > 0) 2904 bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, 2905 sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_PREWRITE); 2906 2907 CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx); 2908 if (stdcnt) 2909 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); 2910 if (jumbocnt) 2911 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); 2912 #ifdef notyet 2913 /* 2914 * This register wraps very quickly under heavy packet drops. 2915 * If you need correct statistics, you can enable this check. 2916 */ 2917 if (BGE_IS_5705_PLUS(sc)) 2918 ifp->if_ierrors += CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_DROPS); 2919 #endif 2920 } 2921 2922 static void 2923 bge_txeof(struct bge_softc *sc) 2924 { 2925 struct bge_tx_bd *cur_tx = NULL; 2926 struct ifnet *ifp; 2927 2928 BGE_LOCK_ASSERT(sc); 2929 2930 /* Nothing to do. */ 2931 if (sc->bge_tx_saved_considx == 2932 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx) 2933 return; 2934 2935 ifp = sc->bge_ifp; 2936 2937 bus_dmamap_sync(sc->bge_cdata.bge_tx_ring_tag, 2938 sc->bge_cdata.bge_tx_ring_map, 2939 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2940 /* 2941 * Go through our tx ring and free mbufs for those 2942 * frames that have been sent. 2943 */ 2944 while (sc->bge_tx_saved_considx != 2945 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx) { 2946 uint32_t idx = 0; 2947 2948 idx = sc->bge_tx_saved_considx; 2949 cur_tx = &sc->bge_ldata.bge_tx_ring[idx]; 2950 if (cur_tx->bge_flags & BGE_TXBDFLAG_END) 2951 ifp->if_opackets++; 2952 if (sc->bge_cdata.bge_tx_chain[idx] != NULL) { 2953 bus_dmamap_sync(sc->bge_cdata.bge_mtag, 2954 sc->bge_cdata.bge_tx_dmamap[idx], 2955 BUS_DMASYNC_POSTWRITE); 2956 bus_dmamap_unload(sc->bge_cdata.bge_mtag, 2957 sc->bge_cdata.bge_tx_dmamap[idx]); 2958 m_freem(sc->bge_cdata.bge_tx_chain[idx]); 2959 sc->bge_cdata.bge_tx_chain[idx] = NULL; 2960 } 2961 sc->bge_txcnt--; 2962 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT); 2963 } 2964 2965 if (cur_tx != NULL) 2966 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2967 if (sc->bge_txcnt == 0) 2968 sc->bge_timer = 0; 2969 } 2970 2971 #ifdef DEVICE_POLLING 2972 static void 2973 bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 2974 { 2975 struct bge_softc *sc = ifp->if_softc; 2976 uint32_t statusword; 2977 2978 BGE_LOCK(sc); 2979 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2980 BGE_UNLOCK(sc); 2981 return; 2982 } 2983 2984 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 2985 sc->bge_cdata.bge_status_map, BUS_DMASYNC_POSTREAD); 2986 2987 statusword = atomic_readandclear_32( 2988 &sc->bge_ldata.bge_status_block->bge_status); 2989 2990 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 2991 sc->bge_cdata.bge_status_map, BUS_DMASYNC_PREREAD); 2992 2993 /* Note link event. It will be processed by POLL_AND_CHECK_STATUS cmd */ 2994 if (statusword & BGE_STATFLAG_LINKSTATE_CHANGED) 2995 sc->bge_link_evt++; 2996 2997 if (cmd == POLL_AND_CHECK_STATUS) 2998 if ((sc->bge_asicrev == BGE_ASICREV_BCM5700 && 2999 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) || 3000 sc->bge_link_evt || (sc->bge_flags & BGE_FLAG_TBI)) 3001 bge_link_upd(sc); 3002 3003 sc->rxcycles = count; 3004 bge_rxeof(sc); 3005 bge_txeof(sc); 3006 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 3007 bge_start_locked(ifp); 3008 3009 BGE_UNLOCK(sc); 3010 } 3011 #endif /* DEVICE_POLLING */ 3012 3013 static void 3014 bge_intr(void *xsc) 3015 { 3016 struct bge_softc *sc; 3017 struct ifnet *ifp; 3018 uint32_t statusword; 3019 3020 sc = xsc; 3021 3022 BGE_LOCK(sc); 3023 3024 ifp = sc->bge_ifp; 3025 3026 #ifdef DEVICE_POLLING 3027 if (ifp->if_capenable & IFCAP_POLLING) { 3028 BGE_UNLOCK(sc); 3029 return; 3030 } 3031 #endif 3032 3033 /* 3034 * Ack the interrupt by writing something to BGE_MBX_IRQ0_LO. Don't 3035 * disable interrupts by writing nonzero like we used to, since with 3036 * our current organization this just gives complications and 3037 * pessimizations for re-enabling interrupts. We used to have races 3038 * instead of the necessary complications. Disabling interrupts 3039 * would just reduce the chance of a status update while we are 3040 * running (by switching to the interrupt-mode coalescence 3041 * parameters), but this chance is already very low so it is more 3042 * efficient to get another interrupt than prevent it. 3043 * 3044 * We do the ack first to ensure another interrupt if there is a 3045 * status update after the ack. We don't check for the status 3046 * changing later because it is more efficient to get another 3047 * interrupt than prevent it, not quite as above (not checking is 3048 * a smaller optimization than not toggling the interrupt enable, 3049 * since checking doesn't involve PCI accesses and toggling require 3050 * the status check). So toggling would probably be a pessimization 3051 * even with MSI. It would only be needed for using a task queue. 3052 */ 3053 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); 3054 3055 /* 3056 * Do the mandatory PCI flush as well as get the link status. 3057 */ 3058 statusword = CSR_READ_4(sc, BGE_MAC_STS) & BGE_MACSTAT_LINK_CHANGED; 3059 3060 /* Make sure the descriptor ring indexes are coherent. */ 3061 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 3062 sc->bge_cdata.bge_status_map, BUS_DMASYNC_POSTREAD); 3063 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 3064 sc->bge_cdata.bge_status_map, BUS_DMASYNC_PREREAD); 3065 3066 if ((sc->bge_asicrev == BGE_ASICREV_BCM5700 && 3067 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) || 3068 statusword || sc->bge_link_evt) 3069 bge_link_upd(sc); 3070 3071 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3072 /* Check RX return ring producer/consumer. */ 3073 bge_rxeof(sc); 3074 3075 /* Check TX ring producer/consumer. */ 3076 bge_txeof(sc); 3077 } 3078 3079 if (ifp->if_drv_flags & IFF_DRV_RUNNING && 3080 !IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 3081 bge_start_locked(ifp); 3082 3083 BGE_UNLOCK(sc); 3084 } 3085 3086 static void 3087 bge_asf_driver_up(struct bge_softc *sc) 3088 { 3089 if (sc->bge_asf_mode & ASF_STACKUP) { 3090 /* Send ASF heartbeat aprox. every 2s */ 3091 if (sc->bge_asf_count) 3092 sc->bge_asf_count --; 3093 else { 3094 sc->bge_asf_count = 5; 3095 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM_FW, 3096 BGE_FW_DRV_ALIVE); 3097 bge_writemem_ind(sc, BGE_SOFTWARE_GENNCOMM_FW_LEN, 4); 3098 bge_writemem_ind(sc, BGE_SOFTWARE_GENNCOMM_FW_DATA, 3); 3099 CSR_WRITE_4(sc, BGE_CPU_EVENT, 3100 CSR_READ_4(sc, BGE_CPU_EVENT) != (1 << 14)); 3101 } 3102 } 3103 } 3104 3105 static void 3106 bge_tick(void *xsc) 3107 { 3108 struct bge_softc *sc = xsc; 3109 struct mii_data *mii = NULL; 3110 3111 BGE_LOCK_ASSERT(sc); 3112 3113 /* Synchronize with possible callout reset/stop. */ 3114 if (callout_pending(&sc->bge_stat_ch) || 3115 !callout_active(&sc->bge_stat_ch)) 3116 return; 3117 3118 if (BGE_IS_5705_PLUS(sc)) 3119 bge_stats_update_regs(sc); 3120 else 3121 bge_stats_update(sc); 3122 3123 if ((sc->bge_flags & BGE_FLAG_TBI) == 0) { 3124 mii = device_get_softc(sc->bge_miibus); 3125 /* Don't mess with the PHY in IPMI/ASF mode */ 3126 if (!((sc->bge_asf_mode & ASF_STACKUP) && (sc->bge_link))) 3127 mii_tick(mii); 3128 } else { 3129 /* 3130 * Since in TBI mode auto-polling can't be used we should poll 3131 * link status manually. Here we register pending link event 3132 * and trigger interrupt. 3133 */ 3134 #ifdef DEVICE_POLLING 3135 /* In polling mode we poll link state in bge_poll(). */ 3136 if (!(sc->bge_ifp->if_capenable & IFCAP_POLLING)) 3137 #endif 3138 { 3139 sc->bge_link_evt++; 3140 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET); 3141 } 3142 } 3143 3144 bge_asf_driver_up(sc); 3145 bge_watchdog(sc); 3146 3147 callout_reset(&sc->bge_stat_ch, hz, bge_tick, sc); 3148 } 3149 3150 static void 3151 bge_stats_update_regs(struct bge_softc *sc) 3152 { 3153 struct ifnet *ifp; 3154 3155 ifp = sc->bge_ifp; 3156 3157 ifp->if_collisions += CSR_READ_4(sc, BGE_MAC_STATS + 3158 offsetof(struct bge_mac_stats_regs, etherStatsCollisions)); 3159 3160 ifp->if_ierrors += CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_DROPS); 3161 } 3162 3163 static void 3164 bge_stats_update(struct bge_softc *sc) 3165 { 3166 struct ifnet *ifp; 3167 bus_size_t stats; 3168 uint32_t cnt; /* current register value */ 3169 3170 ifp = sc->bge_ifp; 3171 3172 stats = BGE_MEMWIN_START + BGE_STATS_BLOCK; 3173 3174 #define READ_STAT(sc, stats, stat) \ 3175 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat)) 3176 3177 cnt = READ_STAT(sc, stats, txstats.etherStatsCollisions.bge_addr_lo); 3178 ifp->if_collisions += (uint32_t)(cnt - sc->bge_tx_collisions); 3179 sc->bge_tx_collisions = cnt; 3180 3181 cnt = READ_STAT(sc, stats, ifInDiscards.bge_addr_lo); 3182 ifp->if_ierrors += (uint32_t)(cnt - sc->bge_rx_discards); 3183 sc->bge_rx_discards = cnt; 3184 3185 cnt = READ_STAT(sc, stats, txstats.ifOutDiscards.bge_addr_lo); 3186 ifp->if_oerrors += (uint32_t)(cnt - sc->bge_tx_discards); 3187 sc->bge_tx_discards = cnt; 3188 3189 #undef READ_STAT 3190 } 3191 3192 /* 3193 * Pad outbound frame to ETHER_MIN_NOPAD for an unusual reason. 3194 * The bge hardware will pad out Tx runts to ETHER_MIN_NOPAD, 3195 * but when such padded frames employ the bge IP/TCP checksum offload, 3196 * the hardware checksum assist gives incorrect results (possibly 3197 * from incorporating its own padding into the UDP/TCP checksum; who knows). 3198 * If we pad such runts with zeros, the onboard checksum comes out correct. 3199 */ 3200 static __inline int 3201 bge_cksum_pad(struct mbuf *m) 3202 { 3203 int padlen = ETHER_MIN_NOPAD - m->m_pkthdr.len; 3204 struct mbuf *last; 3205 3206 /* If there's only the packet-header and we can pad there, use it. */ 3207 if (m->m_pkthdr.len == m->m_len && M_WRITABLE(m) && 3208 M_TRAILINGSPACE(m) >= padlen) { 3209 last = m; 3210 } else { 3211 /* 3212 * Walk packet chain to find last mbuf. We will either 3213 * pad there, or append a new mbuf and pad it. 3214 */ 3215 for (last = m; last->m_next != NULL; last = last->m_next); 3216 if (!(M_WRITABLE(last) && M_TRAILINGSPACE(last) >= padlen)) { 3217 /* Allocate new empty mbuf, pad it. Compact later. */ 3218 struct mbuf *n; 3219 3220 MGET(n, M_DONTWAIT, MT_DATA); 3221 if (n == NULL) 3222 return (ENOBUFS); 3223 n->m_len = 0; 3224 last->m_next = n; 3225 last = n; 3226 } 3227 } 3228 3229 /* Now zero the pad area, to avoid the bge cksum-assist bug. */ 3230 memset(mtod(last, caddr_t) + last->m_len, 0, padlen); 3231 last->m_len += padlen; 3232 m->m_pkthdr.len += padlen; 3233 3234 return (0); 3235 } 3236 3237 /* 3238 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data 3239 * pointers to descriptors. 3240 */ 3241 static int 3242 bge_encap(struct bge_softc *sc, struct mbuf **m_head, uint32_t *txidx) 3243 { 3244 bus_dma_segment_t segs[BGE_NSEG_NEW]; 3245 bus_dmamap_t map; 3246 struct bge_tx_bd *d; 3247 struct mbuf *m = *m_head; 3248 uint32_t idx = *txidx; 3249 uint16_t csum_flags; 3250 int nsegs, i, error; 3251 3252 csum_flags = 0; 3253 if (m->m_pkthdr.csum_flags) { 3254 if (m->m_pkthdr.csum_flags & CSUM_IP) 3255 csum_flags |= BGE_TXBDFLAG_IP_CSUM; 3256 if (m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP)) { 3257 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM; 3258 if (m->m_pkthdr.len < ETHER_MIN_NOPAD && 3259 (error = bge_cksum_pad(m)) != 0) { 3260 m_freem(m); 3261 *m_head = NULL; 3262 return (error); 3263 } 3264 } 3265 if (m->m_flags & M_LASTFRAG) 3266 csum_flags |= BGE_TXBDFLAG_IP_FRAG_END; 3267 else if (m->m_flags & M_FRAG) 3268 csum_flags |= BGE_TXBDFLAG_IP_FRAG; 3269 } 3270 3271 map = sc->bge_cdata.bge_tx_dmamap[idx]; 3272 error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_mtag, map, m, segs, 3273 &nsegs, BUS_DMA_NOWAIT); 3274 if (error == EFBIG) { 3275 m = m_defrag(m, M_DONTWAIT); 3276 if (m == NULL) { 3277 m_freem(*m_head); 3278 *m_head = NULL; 3279 return (ENOBUFS); 3280 } 3281 *m_head = m; 3282 error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_mtag, map, m, 3283 segs, &nsegs, BUS_DMA_NOWAIT); 3284 if (error) { 3285 m_freem(m); 3286 *m_head = NULL; 3287 return (error); 3288 } 3289 } else if (error != 0) 3290 return (error); 3291 3292 /* 3293 * Sanity check: avoid coming within 16 descriptors 3294 * of the end of the ring. 3295 */ 3296 if (nsegs > (BGE_TX_RING_CNT - sc->bge_txcnt - 16)) { 3297 bus_dmamap_unload(sc->bge_cdata.bge_mtag, map); 3298 return (ENOBUFS); 3299 } 3300 3301 bus_dmamap_sync(sc->bge_cdata.bge_mtag, map, BUS_DMASYNC_PREWRITE); 3302 3303 for (i = 0; ; i++) { 3304 d = &sc->bge_ldata.bge_tx_ring[idx]; 3305 d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr); 3306 d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr); 3307 d->bge_len = segs[i].ds_len; 3308 d->bge_flags = csum_flags; 3309 if (i == nsegs - 1) 3310 break; 3311 BGE_INC(idx, BGE_TX_RING_CNT); 3312 } 3313 3314 /* Mark the last segment as end of packet... */ 3315 d->bge_flags |= BGE_TXBDFLAG_END; 3316 3317 /* ... and put VLAN tag into first segment. */ 3318 d = &sc->bge_ldata.bge_tx_ring[*txidx]; 3319 if (m->m_flags & M_VLANTAG) { 3320 d->bge_flags |= BGE_TXBDFLAG_VLAN_TAG; 3321 d->bge_vlan_tag = m->m_pkthdr.ether_vtag; 3322 } else 3323 d->bge_vlan_tag = 0; 3324 3325 /* 3326 * Insure that the map for this transmission 3327 * is placed at the array index of the last descriptor 3328 * in this chain. 3329 */ 3330 sc->bge_cdata.bge_tx_dmamap[*txidx] = sc->bge_cdata.bge_tx_dmamap[idx]; 3331 sc->bge_cdata.bge_tx_dmamap[idx] = map; 3332 sc->bge_cdata.bge_tx_chain[idx] = m; 3333 sc->bge_txcnt += nsegs; 3334 3335 BGE_INC(idx, BGE_TX_RING_CNT); 3336 *txidx = idx; 3337 3338 return (0); 3339 } 3340 3341 /* 3342 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 3343 * to the mbuf data regions directly in the transmit descriptors. 3344 */ 3345 static void 3346 bge_start_locked(struct ifnet *ifp) 3347 { 3348 struct bge_softc *sc; 3349 struct mbuf *m_head = NULL; 3350 uint32_t prodidx; 3351 int count = 0; 3352 3353 sc = ifp->if_softc; 3354 3355 if (!sc->bge_link || IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 3356 return; 3357 3358 prodidx = sc->bge_tx_prodidx; 3359 3360 while(sc->bge_cdata.bge_tx_chain[prodidx] == NULL) { 3361 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); 3362 if (m_head == NULL) 3363 break; 3364 3365 /* 3366 * XXX 3367 * The code inside the if() block is never reached since we 3368 * must mark CSUM_IP_FRAGS in our if_hwassist to start getting 3369 * requests to checksum TCP/UDP in a fragmented packet. 3370 * 3371 * XXX 3372 * safety overkill. If this is a fragmented packet chain 3373 * with delayed TCP/UDP checksums, then only encapsulate 3374 * it if we have enough descriptors to handle the entire 3375 * chain at once. 3376 * (paranoia -- may not actually be needed) 3377 */ 3378 if (m_head->m_flags & M_FIRSTFRAG && 3379 m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) { 3380 if ((BGE_TX_RING_CNT - sc->bge_txcnt) < 3381 m_head->m_pkthdr.csum_data + 16) { 3382 IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 3383 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 3384 break; 3385 } 3386 } 3387 3388 /* 3389 * Pack the data into the transmit ring. If we 3390 * don't have room, set the OACTIVE flag and wait 3391 * for the NIC to drain the ring. 3392 */ 3393 if (bge_encap(sc, &m_head, &prodidx)) { 3394 if (m_head == NULL) 3395 break; 3396 IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 3397 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 3398 break; 3399 } 3400 ++count; 3401 3402 /* 3403 * If there's a BPF listener, bounce a copy of this frame 3404 * to him. 3405 */ 3406 ETHER_BPF_MTAP(ifp, m_head); 3407 } 3408 3409 if (count == 0) 3410 /* No packets were dequeued. */ 3411 return; 3412 3413 /* Transmit. */ 3414 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); 3415 /* 5700 b2 errata */ 3416 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) 3417 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); 3418 3419 sc->bge_tx_prodidx = prodidx; 3420 3421 /* 3422 * Set a timeout in case the chip goes out to lunch. 3423 */ 3424 sc->bge_timer = 5; 3425 } 3426 3427 /* 3428 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 3429 * to the mbuf data regions directly in the transmit descriptors. 3430 */ 3431 static void 3432 bge_start(struct ifnet *ifp) 3433 { 3434 struct bge_softc *sc; 3435 3436 sc = ifp->if_softc; 3437 BGE_LOCK(sc); 3438 bge_start_locked(ifp); 3439 BGE_UNLOCK(sc); 3440 } 3441 3442 static void 3443 bge_init_locked(struct bge_softc *sc) 3444 { 3445 struct ifnet *ifp; 3446 uint16_t *m; 3447 3448 BGE_LOCK_ASSERT(sc); 3449 3450 ifp = sc->bge_ifp; 3451 3452 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3453 return; 3454 3455 /* Cancel pending I/O and flush buffers. */ 3456 bge_stop(sc); 3457 3458 bge_stop_fw(sc); 3459 bge_sig_pre_reset(sc, BGE_RESET_START); 3460 bge_reset(sc); 3461 bge_sig_legacy(sc, BGE_RESET_START); 3462 bge_sig_post_reset(sc, BGE_RESET_START); 3463 3464 bge_chipinit(sc); 3465 3466 /* 3467 * Init the various state machines, ring 3468 * control blocks and firmware. 3469 */ 3470 if (bge_blockinit(sc)) { 3471 device_printf(sc->bge_dev, "initialization failure\n"); 3472 return; 3473 } 3474 3475 ifp = sc->bge_ifp; 3476 3477 /* Specify MTU. */ 3478 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu + 3479 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN); 3480 3481 /* Load our MAC address. */ 3482 m = (uint16_t *)IF_LLADDR(sc->bge_ifp); 3483 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0])); 3484 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2])); 3485 3486 /* Program promiscuous mode. */ 3487 bge_setpromisc(sc); 3488 3489 /* Program multicast filter. */ 3490 bge_setmulti(sc); 3491 3492 /* Init RX ring. */ 3493 bge_init_rx_ring_std(sc); 3494 3495 /* 3496 * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's 3497 * memory to insure that the chip has in fact read the first 3498 * entry of the ring. 3499 */ 3500 if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) { 3501 uint32_t v, i; 3502 for (i = 0; i < 10; i++) { 3503 DELAY(20); 3504 v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8); 3505 if (v == (MCLBYTES - ETHER_ALIGN)) 3506 break; 3507 } 3508 if (i == 10) 3509 device_printf (sc->bge_dev, 3510 "5705 A0 chip failed to load RX ring\n"); 3511 } 3512 3513 /* Init jumbo RX ring. */ 3514 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) 3515 bge_init_rx_ring_jumbo(sc); 3516 3517 /* Init our RX return ring index. */ 3518 sc->bge_rx_saved_considx = 0; 3519 3520 /* Init our RX/TX stat counters. */ 3521 sc->bge_rx_discards = sc->bge_tx_discards = sc->bge_tx_collisions = 0; 3522 3523 /* Init TX ring. */ 3524 bge_init_tx_ring(sc); 3525 3526 /* Turn on transmitter. */ 3527 BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE); 3528 3529 /* Turn on receiver. */ 3530 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); 3531 3532 /* Tell firmware we're alive. */ 3533 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 3534 3535 #ifdef DEVICE_POLLING 3536 /* Disable interrupts if we are polling. */ 3537 if (ifp->if_capenable & IFCAP_POLLING) { 3538 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, 3539 BGE_PCIMISCCTL_MASK_PCI_INTR); 3540 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); 3541 } else 3542 #endif 3543 3544 /* Enable host interrupts. */ 3545 { 3546 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA); 3547 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); 3548 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); 3549 } 3550 3551 bge_ifmedia_upd_locked(ifp); 3552 3553 ifp->if_drv_flags |= IFF_DRV_RUNNING; 3554 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3555 3556 callout_reset(&sc->bge_stat_ch, hz, bge_tick, sc); 3557 } 3558 3559 static void 3560 bge_init(void *xsc) 3561 { 3562 struct bge_softc *sc = xsc; 3563 3564 BGE_LOCK(sc); 3565 bge_init_locked(sc); 3566 BGE_UNLOCK(sc); 3567 } 3568 3569 /* 3570 * Set media options. 3571 */ 3572 static int 3573 bge_ifmedia_upd(struct ifnet *ifp) 3574 { 3575 struct bge_softc *sc = ifp->if_softc; 3576 int res; 3577 3578 BGE_LOCK(sc); 3579 res = bge_ifmedia_upd_locked(ifp); 3580 BGE_UNLOCK(sc); 3581 3582 return (res); 3583 } 3584 3585 static int 3586 bge_ifmedia_upd_locked(struct ifnet *ifp) 3587 { 3588 struct bge_softc *sc = ifp->if_softc; 3589 struct mii_data *mii; 3590 struct ifmedia *ifm; 3591 3592 BGE_LOCK_ASSERT(sc); 3593 3594 ifm = &sc->bge_ifmedia; 3595 3596 /* If this is a 1000baseX NIC, enable the TBI port. */ 3597 if (sc->bge_flags & BGE_FLAG_TBI) { 3598 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 3599 return (EINVAL); 3600 switch(IFM_SUBTYPE(ifm->ifm_media)) { 3601 case IFM_AUTO: 3602 /* 3603 * The BCM5704 ASIC appears to have a special 3604 * mechanism for programming the autoneg 3605 * advertisement registers in TBI mode. 3606 */ 3607 if (bge_fake_autoneg == 0 && 3608 sc->bge_asicrev == BGE_ASICREV_BCM5704) { 3609 uint32_t sgdig; 3610 CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0); 3611 sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG); 3612 sgdig |= BGE_SGDIGCFG_AUTO| 3613 BGE_SGDIGCFG_PAUSE_CAP| 3614 BGE_SGDIGCFG_ASYM_PAUSE; 3615 CSR_WRITE_4(sc, BGE_SGDIG_CFG, 3616 sgdig|BGE_SGDIGCFG_SEND); 3617 DELAY(5); 3618 CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig); 3619 } 3620 break; 3621 case IFM_1000_SX: 3622 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { 3623 BGE_CLRBIT(sc, BGE_MAC_MODE, 3624 BGE_MACMODE_HALF_DUPLEX); 3625 } else { 3626 BGE_SETBIT(sc, BGE_MAC_MODE, 3627 BGE_MACMODE_HALF_DUPLEX); 3628 } 3629 break; 3630 default: 3631 return (EINVAL); 3632 } 3633 return (0); 3634 } 3635 3636 sc->bge_link_evt++; 3637 mii = device_get_softc(sc->bge_miibus); 3638 if (mii->mii_instance) { 3639 struct mii_softc *miisc; 3640 for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL; 3641 miisc = LIST_NEXT(miisc, mii_list)) 3642 mii_phy_reset(miisc); 3643 } 3644 mii_mediachg(mii); 3645 3646 return (0); 3647 } 3648 3649 /* 3650 * Report current media status. 3651 */ 3652 static void 3653 bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 3654 { 3655 struct bge_softc *sc = ifp->if_softc; 3656 struct mii_data *mii; 3657 3658 BGE_LOCK(sc); 3659 3660 if (sc->bge_flags & BGE_FLAG_TBI) { 3661 ifmr->ifm_status = IFM_AVALID; 3662 ifmr->ifm_active = IFM_ETHER; 3663 if (CSR_READ_4(sc, BGE_MAC_STS) & 3664 BGE_MACSTAT_TBI_PCS_SYNCHED) 3665 ifmr->ifm_status |= IFM_ACTIVE; 3666 else { 3667 ifmr->ifm_active |= IFM_NONE; 3668 BGE_UNLOCK(sc); 3669 return; 3670 } 3671 ifmr->ifm_active |= IFM_1000_SX; 3672 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX) 3673 ifmr->ifm_active |= IFM_HDX; 3674 else 3675 ifmr->ifm_active |= IFM_FDX; 3676 BGE_UNLOCK(sc); 3677 return; 3678 } 3679 3680 mii = device_get_softc(sc->bge_miibus); 3681 mii_pollstat(mii); 3682 ifmr->ifm_active = mii->mii_media_active; 3683 ifmr->ifm_status = mii->mii_media_status; 3684 3685 BGE_UNLOCK(sc); 3686 } 3687 3688 static int 3689 bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 3690 { 3691 struct bge_softc *sc = ifp->if_softc; 3692 struct ifreq *ifr = (struct ifreq *) data; 3693 struct mii_data *mii; 3694 int flags, mask, error = 0; 3695 3696 switch (command) { 3697 case SIOCSIFMTU: 3698 if (ifr->ifr_mtu < ETHERMIN || 3699 ((BGE_IS_JUMBO_CAPABLE(sc)) && 3700 ifr->ifr_mtu > BGE_JUMBO_MTU) || 3701 ((!BGE_IS_JUMBO_CAPABLE(sc)) && 3702 ifr->ifr_mtu > ETHERMTU)) 3703 error = EINVAL; 3704 else if (ifp->if_mtu != ifr->ifr_mtu) { 3705 ifp->if_mtu = ifr->ifr_mtu; 3706 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 3707 bge_init(sc); 3708 } 3709 break; 3710 case SIOCSIFFLAGS: 3711 BGE_LOCK(sc); 3712 if (ifp->if_flags & IFF_UP) { 3713 /* 3714 * If only the state of the PROMISC flag changed, 3715 * then just use the 'set promisc mode' command 3716 * instead of reinitializing the entire NIC. Doing 3717 * a full re-init means reloading the firmware and 3718 * waiting for it to start up, which may take a 3719 * second or two. Similarly for ALLMULTI. 3720 */ 3721 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3722 flags = ifp->if_flags ^ sc->bge_if_flags; 3723 if (flags & IFF_PROMISC) 3724 bge_setpromisc(sc); 3725 if (flags & IFF_ALLMULTI) 3726 bge_setmulti(sc); 3727 } else 3728 bge_init_locked(sc); 3729 } else { 3730 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3731 bge_stop(sc); 3732 } 3733 } 3734 sc->bge_if_flags = ifp->if_flags; 3735 BGE_UNLOCK(sc); 3736 error = 0; 3737 break; 3738 case SIOCADDMULTI: 3739 case SIOCDELMULTI: 3740 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3741 BGE_LOCK(sc); 3742 bge_setmulti(sc); 3743 BGE_UNLOCK(sc); 3744 error = 0; 3745 } 3746 break; 3747 case SIOCSIFMEDIA: 3748 case SIOCGIFMEDIA: 3749 if (sc->bge_flags & BGE_FLAG_TBI) { 3750 error = ifmedia_ioctl(ifp, ifr, 3751 &sc->bge_ifmedia, command); 3752 } else { 3753 mii = device_get_softc(sc->bge_miibus); 3754 error = ifmedia_ioctl(ifp, ifr, 3755 &mii->mii_media, command); 3756 } 3757 break; 3758 case SIOCSIFCAP: 3759 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 3760 #ifdef DEVICE_POLLING 3761 if (mask & IFCAP_POLLING) { 3762 if (ifr->ifr_reqcap & IFCAP_POLLING) { 3763 error = ether_poll_register(bge_poll, ifp); 3764 if (error) 3765 return (error); 3766 BGE_LOCK(sc); 3767 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, 3768 BGE_PCIMISCCTL_MASK_PCI_INTR); 3769 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); 3770 ifp->if_capenable |= IFCAP_POLLING; 3771 BGE_UNLOCK(sc); 3772 } else { 3773 error = ether_poll_deregister(ifp); 3774 /* Enable interrupt even in error case */ 3775 BGE_LOCK(sc); 3776 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, 3777 BGE_PCIMISCCTL_MASK_PCI_INTR); 3778 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); 3779 ifp->if_capenable &= ~IFCAP_POLLING; 3780 BGE_UNLOCK(sc); 3781 } 3782 } 3783 #endif 3784 if (mask & IFCAP_HWCSUM) { 3785 ifp->if_capenable ^= IFCAP_HWCSUM; 3786 if (IFCAP_HWCSUM & ifp->if_capenable && 3787 IFCAP_HWCSUM & ifp->if_capabilities) 3788 ifp->if_hwassist = BGE_CSUM_FEATURES; 3789 else 3790 ifp->if_hwassist = 0; 3791 VLAN_CAPABILITIES(ifp); 3792 } 3793 break; 3794 default: 3795 error = ether_ioctl(ifp, command, data); 3796 break; 3797 } 3798 3799 return (error); 3800 } 3801 3802 static void 3803 bge_watchdog(struct bge_softc *sc) 3804 { 3805 struct ifnet *ifp; 3806 3807 BGE_LOCK_ASSERT(sc); 3808 3809 if (sc->bge_timer == 0 || --sc->bge_timer) 3810 return; 3811 3812 ifp = sc->bge_ifp; 3813 3814 if_printf(ifp, "watchdog timeout -- resetting\n"); 3815 3816 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 3817 bge_init_locked(sc); 3818 3819 ifp->if_oerrors++; 3820 } 3821 3822 /* 3823 * Stop the adapter and free any mbufs allocated to the 3824 * RX and TX lists. 3825 */ 3826 static void 3827 bge_stop(struct bge_softc *sc) 3828 { 3829 struct ifnet *ifp; 3830 struct ifmedia_entry *ifm; 3831 struct mii_data *mii = NULL; 3832 int mtmp, itmp; 3833 3834 BGE_LOCK_ASSERT(sc); 3835 3836 ifp = sc->bge_ifp; 3837 3838 if ((sc->bge_flags & BGE_FLAG_TBI) == 0) 3839 mii = device_get_softc(sc->bge_miibus); 3840 3841 callout_stop(&sc->bge_stat_ch); 3842 3843 /* 3844 * Disable all of the receiver blocks. 3845 */ 3846 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); 3847 BGE_CLRBIT(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); 3848 BGE_CLRBIT(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); 3849 if (!(BGE_IS_5705_PLUS(sc))) 3850 BGE_CLRBIT(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); 3851 BGE_CLRBIT(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE); 3852 BGE_CLRBIT(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); 3853 BGE_CLRBIT(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE); 3854 3855 /* 3856 * Disable all of the transmit blocks. 3857 */ 3858 BGE_CLRBIT(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); 3859 BGE_CLRBIT(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); 3860 BGE_CLRBIT(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); 3861 BGE_CLRBIT(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE); 3862 BGE_CLRBIT(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); 3863 if (!(BGE_IS_5705_PLUS(sc))) 3864 BGE_CLRBIT(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); 3865 BGE_CLRBIT(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); 3866 3867 /* 3868 * Shut down all of the memory managers and related 3869 * state machines. 3870 */ 3871 BGE_CLRBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); 3872 BGE_CLRBIT(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE); 3873 if (!(BGE_IS_5705_PLUS(sc))) 3874 BGE_CLRBIT(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); 3875 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); 3876 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); 3877 if (!(BGE_IS_5705_PLUS(sc))) { 3878 BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE); 3879 BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); 3880 } 3881 3882 /* Disable host interrupts. */ 3883 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); 3884 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); 3885 3886 /* 3887 * Tell firmware we're shutting down. 3888 */ 3889 3890 bge_stop_fw(sc); 3891 bge_sig_pre_reset(sc, BGE_RESET_STOP); 3892 bge_reset(sc); 3893 bge_sig_legacy(sc, BGE_RESET_STOP); 3894 bge_sig_post_reset(sc, BGE_RESET_STOP); 3895 3896 /* 3897 * Keep the ASF firmware running if up. 3898 */ 3899 if (sc->bge_asf_mode & ASF_STACKUP) 3900 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 3901 else 3902 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 3903 3904 /* Free the RX lists. */ 3905 bge_free_rx_ring_std(sc); 3906 3907 /* Free jumbo RX list. */ 3908 if (BGE_IS_JUMBO_CAPABLE(sc)) 3909 bge_free_rx_ring_jumbo(sc); 3910 3911 /* Free TX buffers. */ 3912 bge_free_tx_ring(sc); 3913 3914 /* 3915 * Isolate/power down the PHY, but leave the media selection 3916 * unchanged so that things will be put back to normal when 3917 * we bring the interface back up. 3918 */ 3919 if ((sc->bge_flags & BGE_FLAG_TBI) == 0) { 3920 itmp = ifp->if_flags; 3921 ifp->if_flags |= IFF_UP; 3922 /* 3923 * If we are called from bge_detach(), mii is already NULL. 3924 */ 3925 if (mii != NULL) { 3926 ifm = mii->mii_media.ifm_cur; 3927 mtmp = ifm->ifm_media; 3928 ifm->ifm_media = IFM_ETHER|IFM_NONE; 3929 mii_mediachg(mii); 3930 ifm->ifm_media = mtmp; 3931 } 3932 ifp->if_flags = itmp; 3933 } 3934 3935 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET; 3936 3937 /* Clear MAC's link state (PHY may still have link UP). */ 3938 if (bootverbose && sc->bge_link) 3939 if_printf(sc->bge_ifp, "link DOWN\n"); 3940 sc->bge_link = 0; 3941 3942 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 3943 } 3944 3945 /* 3946 * Stop all chip I/O so that the kernel's probe routines don't 3947 * get confused by errant DMAs when rebooting. 3948 */ 3949 static void 3950 bge_shutdown(device_t dev) 3951 { 3952 struct bge_softc *sc; 3953 3954 sc = device_get_softc(dev); 3955 3956 BGE_LOCK(sc); 3957 bge_stop(sc); 3958 bge_reset(sc); 3959 BGE_UNLOCK(sc); 3960 } 3961 3962 static int 3963 bge_suspend(device_t dev) 3964 { 3965 struct bge_softc *sc; 3966 3967 sc = device_get_softc(dev); 3968 BGE_LOCK(sc); 3969 bge_stop(sc); 3970 BGE_UNLOCK(sc); 3971 3972 return (0); 3973 } 3974 3975 static int 3976 bge_resume(device_t dev) 3977 { 3978 struct bge_softc *sc; 3979 struct ifnet *ifp; 3980 3981 sc = device_get_softc(dev); 3982 BGE_LOCK(sc); 3983 ifp = sc->bge_ifp; 3984 if (ifp->if_flags & IFF_UP) { 3985 bge_init_locked(sc); 3986 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3987 bge_start_locked(ifp); 3988 } 3989 BGE_UNLOCK(sc); 3990 3991 return (0); 3992 } 3993 3994 static void 3995 bge_link_upd(struct bge_softc *sc) 3996 { 3997 struct mii_data *mii; 3998 uint32_t link, status; 3999 4000 BGE_LOCK_ASSERT(sc); 4001 4002 /* Clear 'pending link event' flag. */ 4003 sc->bge_link_evt = 0; 4004 4005 /* 4006 * Process link state changes. 4007 * Grrr. The link status word in the status block does 4008 * not work correctly on the BCM5700 rev AX and BX chips, 4009 * according to all available information. Hence, we have 4010 * to enable MII interrupts in order to properly obtain 4011 * async link changes. Unfortunately, this also means that 4012 * we have to read the MAC status register to detect link 4013 * changes, thereby adding an additional register access to 4014 * the interrupt handler. 4015 * 4016 * XXX: perhaps link state detection procedure used for 4017 * BGE_CHIPID_BCM5700_B2 can be used for others BCM5700 revisions. 4018 */ 4019 4020 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && 4021 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) { 4022 status = CSR_READ_4(sc, BGE_MAC_STS); 4023 if (status & BGE_MACSTAT_MI_INTERRUPT) { 4024 mii = device_get_softc(sc->bge_miibus); 4025 mii_pollstat(mii); 4026 if (!sc->bge_link && 4027 mii->mii_media_status & IFM_ACTIVE && 4028 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 4029 sc->bge_link++; 4030 if (bootverbose) 4031 if_printf(sc->bge_ifp, "link UP\n"); 4032 } else if (sc->bge_link && 4033 (!(mii->mii_media_status & IFM_ACTIVE) || 4034 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) { 4035 sc->bge_link = 0; 4036 if (bootverbose) 4037 if_printf(sc->bge_ifp, "link DOWN\n"); 4038 } 4039 4040 /* Clear the interrupt. */ 4041 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, 4042 BGE_EVTENB_MI_INTERRUPT); 4043 bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR); 4044 bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, 4045 BRGPHY_INTRS); 4046 } 4047 return; 4048 } 4049 4050 if (sc->bge_flags & BGE_FLAG_TBI) { 4051 status = CSR_READ_4(sc, BGE_MAC_STS); 4052 if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) { 4053 if (!sc->bge_link) { 4054 sc->bge_link++; 4055 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) 4056 BGE_CLRBIT(sc, BGE_MAC_MODE, 4057 BGE_MACMODE_TBI_SEND_CFGS); 4058 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF); 4059 if (bootverbose) 4060 if_printf(sc->bge_ifp, "link UP\n"); 4061 if_link_state_change(sc->bge_ifp, 4062 LINK_STATE_UP); 4063 } 4064 } else if (sc->bge_link) { 4065 sc->bge_link = 0; 4066 if (bootverbose) 4067 if_printf(sc->bge_ifp, "link DOWN\n"); 4068 if_link_state_change(sc->bge_ifp, LINK_STATE_DOWN); 4069 } 4070 /* Discard link events for MII/GMII cards if MI auto-polling disabled */ 4071 } else if (CSR_READ_4(sc, BGE_MI_MODE) & BGE_MIMODE_AUTOPOLL) { 4072 /* 4073 * Some broken BCM chips have BGE_STATFLAG_LINKSTATE_CHANGED bit 4074 * in status word always set. Workaround this bug by reading 4075 * PHY link status directly. 4076 */ 4077 link = (CSR_READ_4(sc, BGE_MI_STS) & BGE_MISTS_LINK) ? 1 : 0; 4078 4079 if (link != sc->bge_link || 4080 sc->bge_asicrev == BGE_ASICREV_BCM5700) { 4081 mii = device_get_softc(sc->bge_miibus); 4082 mii_pollstat(mii); 4083 if (!sc->bge_link && 4084 mii->mii_media_status & IFM_ACTIVE && 4085 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 4086 sc->bge_link++; 4087 if (bootverbose) 4088 if_printf(sc->bge_ifp, "link UP\n"); 4089 } else if (sc->bge_link && 4090 (!(mii->mii_media_status & IFM_ACTIVE) || 4091 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) { 4092 sc->bge_link = 0; 4093 if (bootverbose) 4094 if_printf(sc->bge_ifp, "link DOWN\n"); 4095 } 4096 } 4097 } 4098 4099 /* Clear the attention. */ 4100 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| 4101 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| 4102 BGE_MACSTAT_LINK_CHANGED); 4103 } 4104 4105 static void 4106 bge_add_sysctls(struct bge_softc *sc) 4107 { 4108 struct sysctl_ctx_list *ctx; 4109 struct sysctl_oid_list *children; 4110 4111 ctx = device_get_sysctl_ctx(sc->bge_dev); 4112 children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->bge_dev)); 4113 4114 #ifdef BGE_REGISTER_DEBUG 4115 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "debug_info", 4116 CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_debug_info, "I", 4117 "Debug Information"); 4118 4119 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reg_read", 4120 CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_reg_read, "I", 4121 "Register Read"); 4122 4123 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "mem_read", 4124 CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_mem_read, "I", 4125 "Memory Read"); 4126 4127 SYSCTL_ADD_ULONG(ctx, children, OID_AUTO, "stat_IfHcInOctets", 4128 CTLFLAG_RD, 4129 &sc->bge_ldata.bge_stats->rxstats.ifHCInOctets.bge_addr_lo, 4130 "Bytes received"); 4131 4132 SYSCTL_ADD_ULONG(ctx, children, OID_AUTO, "stat_IfHcOutOctets", 4133 CTLFLAG_RD, 4134 &sc->bge_ldata.bge_stats->txstats.ifHCOutOctets.bge_addr_lo, 4135 "Bytes received"); 4136 #endif 4137 } 4138 4139 #ifdef BGE_REGISTER_DEBUG 4140 static int 4141 bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS) 4142 { 4143 struct bge_softc *sc; 4144 uint16_t *sbdata; 4145 int error; 4146 int result; 4147 int i, j; 4148 4149 result = -1; 4150 error = sysctl_handle_int(oidp, &result, 0, req); 4151 if (error || (req->newptr == NULL)) 4152 return (error); 4153 4154 if (result == 1) { 4155 sc = (struct bge_softc *)arg1; 4156 4157 sbdata = (uint16_t *)sc->bge_ldata.bge_status_block; 4158 printf("Status Block:\n"); 4159 for (i = 0x0; i < (BGE_STATUS_BLK_SZ / 4); ) { 4160 printf("%06x:", i); 4161 for (j = 0; j < 8; j++) { 4162 printf(" %04x", sbdata[i]); 4163 i += 4; 4164 } 4165 printf("\n"); 4166 } 4167 4168 printf("Registers:\n"); 4169 for (i = 0x800; i < 0xa00; ) { 4170 printf("%06x:", i); 4171 for (j = 0; j < 8; j++) { 4172 printf(" %08x", CSR_READ_4(sc, i)); 4173 i += 4; 4174 } 4175 printf("\n"); 4176 } 4177 4178 printf("Hardware Flags:\n"); 4179 if (BGE_IS_575X_PLUS(sc)) 4180 printf(" - 575X Plus\n"); 4181 if (BGE_IS_5705_PLUS(sc)) 4182 printf(" - 5705 Plus\n"); 4183 if (BGE_IS_5714_FAMILY(sc)) 4184 printf(" - 5714 Family\n"); 4185 if (BGE_IS_5700_FAMILY(sc)) 4186 printf(" - 5700 Family\n"); 4187 if (sc->bge_flags & BGE_FLAG_JUMBO) 4188 printf(" - Supports Jumbo Frames\n"); 4189 if (sc->bge_flags & BGE_FLAG_PCIX) 4190 printf(" - PCI-X Bus\n"); 4191 if (sc->bge_flags & BGE_FLAG_PCIE) 4192 printf(" - PCI Express Bus\n"); 4193 if (sc->bge_flags & BGE_FLAG_NO3LED) 4194 printf(" - No 3 LEDs\n"); 4195 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) 4196 printf(" - RX Alignment Bug\n"); 4197 } 4198 4199 return (error); 4200 } 4201 4202 static int 4203 bge_sysctl_reg_read(SYSCTL_HANDLER_ARGS) 4204 { 4205 struct bge_softc *sc; 4206 int error; 4207 uint16_t result; 4208 uint32_t val; 4209 4210 result = -1; 4211 error = sysctl_handle_int(oidp, &result, 0, req); 4212 if (error || (req->newptr == NULL)) 4213 return (error); 4214 4215 if (result < 0x8000) { 4216 sc = (struct bge_softc *)arg1; 4217 val = CSR_READ_4(sc, result); 4218 printf("reg 0x%06X = 0x%08X\n", result, val); 4219 } 4220 4221 return (error); 4222 } 4223 4224 static int 4225 bge_sysctl_mem_read(SYSCTL_HANDLER_ARGS) 4226 { 4227 struct bge_softc *sc; 4228 int error; 4229 uint16_t result; 4230 uint32_t val; 4231 4232 result = -1; 4233 error = sysctl_handle_int(oidp, &result, 0, req); 4234 if (error || (req->newptr == NULL)) 4235 return (error); 4236 4237 if (result < 0x8000) { 4238 sc = (struct bge_softc *)arg1; 4239 val = bge_readmem_ind(sc, result); 4240 printf("mem 0x%06X = 0x%08X\n", result, val); 4241 } 4242 4243 return (error); 4244 } 4245 #endif 4246