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 referred 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 #include <sys/taskqueue.h> 84 85 #include <net/if.h> 86 #include <net/if_arp.h> 87 #include <net/ethernet.h> 88 #include <net/if_dl.h> 89 #include <net/if_media.h> 90 91 #include <net/bpf.h> 92 93 #include <net/if_types.h> 94 #include <net/if_vlan_var.h> 95 96 #include <netinet/in_systm.h> 97 #include <netinet/in.h> 98 #include <netinet/ip.h> 99 #include <netinet/tcp.h> 100 101 #include <machine/bus.h> 102 #include <machine/resource.h> 103 #include <sys/bus.h> 104 #include <sys/rman.h> 105 106 #include <dev/mii/mii.h> 107 #include <dev/mii/miivar.h> 108 #include "miidevs.h" 109 #include <dev/mii/brgphyreg.h> 110 111 #ifdef __sparc64__ 112 #include <dev/ofw/ofw_bus.h> 113 #include <dev/ofw/openfirm.h> 114 #include <machine/ofw_machdep.h> 115 #include <machine/ver.h> 116 #endif 117 118 #include <dev/pci/pcireg.h> 119 #include <dev/pci/pcivar.h> 120 121 #include <dev/bge/if_bgereg.h> 122 123 #define BGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP) 124 #define ETHER_MIN_NOPAD (ETHER_MIN_LEN - ETHER_CRC_LEN) /* i.e., 60 */ 125 126 MODULE_DEPEND(bge, pci, 1, 1, 1); 127 MODULE_DEPEND(bge, ether, 1, 1, 1); 128 MODULE_DEPEND(bge, miibus, 1, 1, 1); 129 130 /* "device miibus" required. See GENERIC if you get errors here. */ 131 #include "miibus_if.h" 132 133 /* 134 * Various supported device vendors/types and their names. Note: the 135 * spec seems to indicate that the hardware still has Alteon's vendor 136 * ID burned into it, though it will always be overriden by the vendor 137 * ID in the EEPROM. Just to be safe, we cover all possibilities. 138 */ 139 static const struct bge_type { 140 uint16_t bge_vid; 141 uint16_t bge_did; 142 } const bge_devs[] = { 143 { ALTEON_VENDORID, ALTEON_DEVICEID_BCM5700 }, 144 { ALTEON_VENDORID, ALTEON_DEVICEID_BCM5701 }, 145 146 { ALTIMA_VENDORID, ALTIMA_DEVICE_AC1000 }, 147 { ALTIMA_VENDORID, ALTIMA_DEVICE_AC1002 }, 148 { ALTIMA_VENDORID, ALTIMA_DEVICE_AC9100 }, 149 150 { APPLE_VENDORID, APPLE_DEVICE_BCM5701 }, 151 152 { BCOM_VENDORID, BCOM_DEVICEID_BCM5700 }, 153 { BCOM_VENDORID, BCOM_DEVICEID_BCM5701 }, 154 { BCOM_VENDORID, BCOM_DEVICEID_BCM5702 }, 155 { BCOM_VENDORID, BCOM_DEVICEID_BCM5702_ALT }, 156 { BCOM_VENDORID, BCOM_DEVICEID_BCM5702X }, 157 { BCOM_VENDORID, BCOM_DEVICEID_BCM5703 }, 158 { BCOM_VENDORID, BCOM_DEVICEID_BCM5703_ALT }, 159 { BCOM_VENDORID, BCOM_DEVICEID_BCM5703X }, 160 { BCOM_VENDORID, BCOM_DEVICEID_BCM5704C }, 161 { BCOM_VENDORID, BCOM_DEVICEID_BCM5704S }, 162 { BCOM_VENDORID, BCOM_DEVICEID_BCM5704S_ALT }, 163 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705 }, 164 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705F }, 165 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705K }, 166 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705M }, 167 { BCOM_VENDORID, BCOM_DEVICEID_BCM5705M_ALT }, 168 { BCOM_VENDORID, BCOM_DEVICEID_BCM5714C }, 169 { BCOM_VENDORID, BCOM_DEVICEID_BCM5714S }, 170 { BCOM_VENDORID, BCOM_DEVICEID_BCM5715 }, 171 { BCOM_VENDORID, BCOM_DEVICEID_BCM5715S }, 172 { BCOM_VENDORID, BCOM_DEVICEID_BCM5717 }, 173 { BCOM_VENDORID, BCOM_DEVICEID_BCM5718 }, 174 { BCOM_VENDORID, BCOM_DEVICEID_BCM5719 }, 175 { BCOM_VENDORID, BCOM_DEVICEID_BCM5720 }, 176 { BCOM_VENDORID, BCOM_DEVICEID_BCM5721 }, 177 { BCOM_VENDORID, BCOM_DEVICEID_BCM5722 }, 178 { BCOM_VENDORID, BCOM_DEVICEID_BCM5723 }, 179 { BCOM_VENDORID, BCOM_DEVICEID_BCM5750 }, 180 { BCOM_VENDORID, BCOM_DEVICEID_BCM5750M }, 181 { BCOM_VENDORID, BCOM_DEVICEID_BCM5751 }, 182 { BCOM_VENDORID, BCOM_DEVICEID_BCM5751F }, 183 { BCOM_VENDORID, BCOM_DEVICEID_BCM5751M }, 184 { BCOM_VENDORID, BCOM_DEVICEID_BCM5752 }, 185 { BCOM_VENDORID, BCOM_DEVICEID_BCM5752M }, 186 { BCOM_VENDORID, BCOM_DEVICEID_BCM5753 }, 187 { BCOM_VENDORID, BCOM_DEVICEID_BCM5753F }, 188 { BCOM_VENDORID, BCOM_DEVICEID_BCM5753M }, 189 { BCOM_VENDORID, BCOM_DEVICEID_BCM5754 }, 190 { BCOM_VENDORID, BCOM_DEVICEID_BCM5754M }, 191 { BCOM_VENDORID, BCOM_DEVICEID_BCM5755 }, 192 { BCOM_VENDORID, BCOM_DEVICEID_BCM5755M }, 193 { BCOM_VENDORID, BCOM_DEVICEID_BCM5756 }, 194 { BCOM_VENDORID, BCOM_DEVICEID_BCM5761 }, 195 { BCOM_VENDORID, BCOM_DEVICEID_BCM5761E }, 196 { BCOM_VENDORID, BCOM_DEVICEID_BCM5761S }, 197 { BCOM_VENDORID, BCOM_DEVICEID_BCM5761SE }, 198 { BCOM_VENDORID, BCOM_DEVICEID_BCM5764 }, 199 { BCOM_VENDORID, BCOM_DEVICEID_BCM5780 }, 200 { BCOM_VENDORID, BCOM_DEVICEID_BCM5780S }, 201 { BCOM_VENDORID, BCOM_DEVICEID_BCM5781 }, 202 { BCOM_VENDORID, BCOM_DEVICEID_BCM5782 }, 203 { BCOM_VENDORID, BCOM_DEVICEID_BCM5784 }, 204 { BCOM_VENDORID, BCOM_DEVICEID_BCM5785F }, 205 { BCOM_VENDORID, BCOM_DEVICEID_BCM5785G }, 206 { BCOM_VENDORID, BCOM_DEVICEID_BCM5786 }, 207 { BCOM_VENDORID, BCOM_DEVICEID_BCM5787 }, 208 { BCOM_VENDORID, BCOM_DEVICEID_BCM5787F }, 209 { BCOM_VENDORID, BCOM_DEVICEID_BCM5787M }, 210 { BCOM_VENDORID, BCOM_DEVICEID_BCM5788 }, 211 { BCOM_VENDORID, BCOM_DEVICEID_BCM5789 }, 212 { BCOM_VENDORID, BCOM_DEVICEID_BCM5901 }, 213 { BCOM_VENDORID, BCOM_DEVICEID_BCM5901A2 }, 214 { BCOM_VENDORID, BCOM_DEVICEID_BCM5903M }, 215 { BCOM_VENDORID, BCOM_DEVICEID_BCM5906 }, 216 { BCOM_VENDORID, BCOM_DEVICEID_BCM5906M }, 217 { BCOM_VENDORID, BCOM_DEVICEID_BCM57760 }, 218 { BCOM_VENDORID, BCOM_DEVICEID_BCM57761 }, 219 { BCOM_VENDORID, BCOM_DEVICEID_BCM57765 }, 220 { BCOM_VENDORID, BCOM_DEVICEID_BCM57780 }, 221 { BCOM_VENDORID, BCOM_DEVICEID_BCM57781 }, 222 { BCOM_VENDORID, BCOM_DEVICEID_BCM57785 }, 223 { BCOM_VENDORID, BCOM_DEVICEID_BCM57788 }, 224 { BCOM_VENDORID, BCOM_DEVICEID_BCM57790 }, 225 { BCOM_VENDORID, BCOM_DEVICEID_BCM57791 }, 226 { BCOM_VENDORID, BCOM_DEVICEID_BCM57795 }, 227 228 { SK_VENDORID, SK_DEVICEID_ALTIMA }, 229 230 { TC_VENDORID, TC_DEVICEID_3C996 }, 231 232 { FJTSU_VENDORID, FJTSU_DEVICEID_PW008GE4 }, 233 { FJTSU_VENDORID, FJTSU_DEVICEID_PW008GE5 }, 234 { FJTSU_VENDORID, FJTSU_DEVICEID_PP250450 }, 235 236 { 0, 0 } 237 }; 238 239 static const struct bge_vendor { 240 uint16_t v_id; 241 const char *v_name; 242 } const bge_vendors[] = { 243 { ALTEON_VENDORID, "Alteon" }, 244 { ALTIMA_VENDORID, "Altima" }, 245 { APPLE_VENDORID, "Apple" }, 246 { BCOM_VENDORID, "Broadcom" }, 247 { SK_VENDORID, "SysKonnect" }, 248 { TC_VENDORID, "3Com" }, 249 { FJTSU_VENDORID, "Fujitsu" }, 250 251 { 0, NULL } 252 }; 253 254 static const struct bge_revision { 255 uint32_t br_chipid; 256 const char *br_name; 257 } const bge_revisions[] = { 258 { BGE_CHIPID_BCM5700_A0, "BCM5700 A0" }, 259 { BGE_CHIPID_BCM5700_A1, "BCM5700 A1" }, 260 { BGE_CHIPID_BCM5700_B0, "BCM5700 B0" }, 261 { BGE_CHIPID_BCM5700_B1, "BCM5700 B1" }, 262 { BGE_CHIPID_BCM5700_B2, "BCM5700 B2" }, 263 { BGE_CHIPID_BCM5700_B3, "BCM5700 B3" }, 264 { BGE_CHIPID_BCM5700_ALTIMA, "BCM5700 Altima" }, 265 { BGE_CHIPID_BCM5700_C0, "BCM5700 C0" }, 266 { BGE_CHIPID_BCM5701_A0, "BCM5701 A0" }, 267 { BGE_CHIPID_BCM5701_B0, "BCM5701 B0" }, 268 { BGE_CHIPID_BCM5701_B2, "BCM5701 B2" }, 269 { BGE_CHIPID_BCM5701_B5, "BCM5701 B5" }, 270 { BGE_CHIPID_BCM5703_A0, "BCM5703 A0" }, 271 { BGE_CHIPID_BCM5703_A1, "BCM5703 A1" }, 272 { BGE_CHIPID_BCM5703_A2, "BCM5703 A2" }, 273 { BGE_CHIPID_BCM5703_A3, "BCM5703 A3" }, 274 { BGE_CHIPID_BCM5703_B0, "BCM5703 B0" }, 275 { BGE_CHIPID_BCM5704_A0, "BCM5704 A0" }, 276 { BGE_CHIPID_BCM5704_A1, "BCM5704 A1" }, 277 { BGE_CHIPID_BCM5704_A2, "BCM5704 A2" }, 278 { BGE_CHIPID_BCM5704_A3, "BCM5704 A3" }, 279 { BGE_CHIPID_BCM5704_B0, "BCM5704 B0" }, 280 { BGE_CHIPID_BCM5705_A0, "BCM5705 A0" }, 281 { BGE_CHIPID_BCM5705_A1, "BCM5705 A1" }, 282 { BGE_CHIPID_BCM5705_A2, "BCM5705 A2" }, 283 { BGE_CHIPID_BCM5705_A3, "BCM5705 A3" }, 284 { BGE_CHIPID_BCM5750_A0, "BCM5750 A0" }, 285 { BGE_CHIPID_BCM5750_A1, "BCM5750 A1" }, 286 { BGE_CHIPID_BCM5750_A3, "BCM5750 A3" }, 287 { BGE_CHIPID_BCM5750_B0, "BCM5750 B0" }, 288 { BGE_CHIPID_BCM5750_B1, "BCM5750 B1" }, 289 { BGE_CHIPID_BCM5750_C0, "BCM5750 C0" }, 290 { BGE_CHIPID_BCM5750_C1, "BCM5750 C1" }, 291 { BGE_CHIPID_BCM5750_C2, "BCM5750 C2" }, 292 { BGE_CHIPID_BCM5714_A0, "BCM5714 A0" }, 293 { BGE_CHIPID_BCM5752_A0, "BCM5752 A0" }, 294 { BGE_CHIPID_BCM5752_A1, "BCM5752 A1" }, 295 { BGE_CHIPID_BCM5752_A2, "BCM5752 A2" }, 296 { BGE_CHIPID_BCM5714_B0, "BCM5714 B0" }, 297 { BGE_CHIPID_BCM5714_B3, "BCM5714 B3" }, 298 { BGE_CHIPID_BCM5715_A0, "BCM5715 A0" }, 299 { BGE_CHIPID_BCM5715_A1, "BCM5715 A1" }, 300 { BGE_CHIPID_BCM5715_A3, "BCM5715 A3" }, 301 { BGE_CHIPID_BCM5717_A0, "BCM5717 A0" }, 302 { BGE_CHIPID_BCM5717_B0, "BCM5717 B0" }, 303 { BGE_CHIPID_BCM5719_A0, "BCM5719 A0" }, 304 { BGE_CHIPID_BCM5720_A0, "BCM5720 A0" }, 305 { BGE_CHIPID_BCM5755_A0, "BCM5755 A0" }, 306 { BGE_CHIPID_BCM5755_A1, "BCM5755 A1" }, 307 { BGE_CHIPID_BCM5755_A2, "BCM5755 A2" }, 308 { BGE_CHIPID_BCM5722_A0, "BCM5722 A0" }, 309 { BGE_CHIPID_BCM5761_A0, "BCM5761 A0" }, 310 { BGE_CHIPID_BCM5761_A1, "BCM5761 A1" }, 311 { BGE_CHIPID_BCM5784_A0, "BCM5784 A0" }, 312 { BGE_CHIPID_BCM5784_A1, "BCM5784 A1" }, 313 /* 5754 and 5787 share the same ASIC ID */ 314 { BGE_CHIPID_BCM5787_A0, "BCM5754/5787 A0" }, 315 { BGE_CHIPID_BCM5787_A1, "BCM5754/5787 A1" }, 316 { BGE_CHIPID_BCM5787_A2, "BCM5754/5787 A2" }, 317 { BGE_CHIPID_BCM5906_A1, "BCM5906 A1" }, 318 { BGE_CHIPID_BCM5906_A2, "BCM5906 A2" }, 319 { BGE_CHIPID_BCM57765_A0, "BCM57765 A0" }, 320 { BGE_CHIPID_BCM57765_B0, "BCM57765 B0" }, 321 { BGE_CHIPID_BCM57780_A0, "BCM57780 A0" }, 322 { BGE_CHIPID_BCM57780_A1, "BCM57780 A1" }, 323 324 { 0, NULL } 325 }; 326 327 /* 328 * Some defaults for major revisions, so that newer steppings 329 * that we don't know about have a shot at working. 330 */ 331 static const struct bge_revision const bge_majorrevs[] = { 332 { BGE_ASICREV_BCM5700, "unknown BCM5700" }, 333 { BGE_ASICREV_BCM5701, "unknown BCM5701" }, 334 { BGE_ASICREV_BCM5703, "unknown BCM5703" }, 335 { BGE_ASICREV_BCM5704, "unknown BCM5704" }, 336 { BGE_ASICREV_BCM5705, "unknown BCM5705" }, 337 { BGE_ASICREV_BCM5750, "unknown BCM5750" }, 338 { BGE_ASICREV_BCM5714_A0, "unknown BCM5714" }, 339 { BGE_ASICREV_BCM5752, "unknown BCM5752" }, 340 { BGE_ASICREV_BCM5780, "unknown BCM5780" }, 341 { BGE_ASICREV_BCM5714, "unknown BCM5714" }, 342 { BGE_ASICREV_BCM5755, "unknown BCM5755" }, 343 { BGE_ASICREV_BCM5761, "unknown BCM5761" }, 344 { BGE_ASICREV_BCM5784, "unknown BCM5784" }, 345 { BGE_ASICREV_BCM5785, "unknown BCM5785" }, 346 /* 5754 and 5787 share the same ASIC ID */ 347 { BGE_ASICREV_BCM5787, "unknown BCM5754/5787" }, 348 { BGE_ASICREV_BCM5906, "unknown BCM5906" }, 349 { BGE_ASICREV_BCM57765, "unknown BCM57765" }, 350 { BGE_ASICREV_BCM57780, "unknown BCM57780" }, 351 { BGE_ASICREV_BCM5717, "unknown BCM5717" }, 352 { BGE_ASICREV_BCM5719, "unknown BCM5719" }, 353 { BGE_ASICREV_BCM5720, "unknown BCM5720" }, 354 355 { 0, NULL } 356 }; 357 358 #define BGE_IS_JUMBO_CAPABLE(sc) ((sc)->bge_flags & BGE_FLAG_JUMBO) 359 #define BGE_IS_5700_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5700_FAMILY) 360 #define BGE_IS_5705_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5705_PLUS) 361 #define BGE_IS_5714_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5714_FAMILY) 362 #define BGE_IS_575X_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_575X_PLUS) 363 #define BGE_IS_5755_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5755_PLUS) 364 #define BGE_IS_5717_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5717_PLUS) 365 366 const struct bge_revision * bge_lookup_rev(uint32_t); 367 const struct bge_vendor * bge_lookup_vendor(uint16_t); 368 369 typedef int (*bge_eaddr_fcn_t)(struct bge_softc *, uint8_t[]); 370 371 static int bge_probe(device_t); 372 static int bge_attach(device_t); 373 static int bge_detach(device_t); 374 static int bge_suspend(device_t); 375 static int bge_resume(device_t); 376 static void bge_release_resources(struct bge_softc *); 377 static void bge_dma_map_addr(void *, bus_dma_segment_t *, int, int); 378 static int bge_dma_alloc(struct bge_softc *); 379 static void bge_dma_free(struct bge_softc *); 380 static int bge_dma_ring_alloc(struct bge_softc *, bus_size_t, bus_size_t, 381 bus_dma_tag_t *, uint8_t **, bus_dmamap_t *, bus_addr_t *, const char *); 382 383 static void bge_devinfo(struct bge_softc *); 384 static int bge_mbox_reorder(struct bge_softc *); 385 386 static int bge_get_eaddr_fw(struct bge_softc *sc, uint8_t ether_addr[]); 387 static int bge_get_eaddr_mem(struct bge_softc *, uint8_t[]); 388 static int bge_get_eaddr_nvram(struct bge_softc *, uint8_t[]); 389 static int bge_get_eaddr_eeprom(struct bge_softc *, uint8_t[]); 390 static int bge_get_eaddr(struct bge_softc *, uint8_t[]); 391 392 static void bge_txeof(struct bge_softc *, uint16_t); 393 static void bge_rxcsum(struct bge_softc *, struct bge_rx_bd *, struct mbuf *); 394 static int bge_rxeof(struct bge_softc *, uint16_t, int); 395 396 static void bge_asf_driver_up (struct bge_softc *); 397 static void bge_tick(void *); 398 static void bge_stats_clear_regs(struct bge_softc *); 399 static void bge_stats_update(struct bge_softc *); 400 static void bge_stats_update_regs(struct bge_softc *); 401 static struct mbuf *bge_check_short_dma(struct mbuf *); 402 static struct mbuf *bge_setup_tso(struct bge_softc *, struct mbuf *, 403 uint16_t *, uint16_t *); 404 static int bge_encap(struct bge_softc *, struct mbuf **, uint32_t *); 405 406 static void bge_intr(void *); 407 static int bge_msi_intr(void *); 408 static void bge_intr_task(void *, int); 409 static void bge_start_locked(struct ifnet *); 410 static void bge_start(struct ifnet *); 411 static int bge_ioctl(struct ifnet *, u_long, caddr_t); 412 static void bge_init_locked(struct bge_softc *); 413 static void bge_init(void *); 414 static void bge_stop_block(struct bge_softc *, bus_size_t, uint32_t); 415 static void bge_stop(struct bge_softc *); 416 static void bge_watchdog(struct bge_softc *); 417 static int bge_shutdown(device_t); 418 static int bge_ifmedia_upd_locked(struct ifnet *); 419 static int bge_ifmedia_upd(struct ifnet *); 420 static void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *); 421 422 static uint8_t bge_nvram_getbyte(struct bge_softc *, int, uint8_t *); 423 static int bge_read_nvram(struct bge_softc *, caddr_t, int, int); 424 425 static uint8_t bge_eeprom_getbyte(struct bge_softc *, int, uint8_t *); 426 static int bge_read_eeprom(struct bge_softc *, caddr_t, int, int); 427 428 static void bge_setpromisc(struct bge_softc *); 429 static void bge_setmulti(struct bge_softc *); 430 static void bge_setvlan(struct bge_softc *); 431 432 static __inline void bge_rxreuse_std(struct bge_softc *, int); 433 static __inline void bge_rxreuse_jumbo(struct bge_softc *, int); 434 static int bge_newbuf_std(struct bge_softc *, int); 435 static int bge_newbuf_jumbo(struct bge_softc *, int); 436 static int bge_init_rx_ring_std(struct bge_softc *); 437 static void bge_free_rx_ring_std(struct bge_softc *); 438 static int bge_init_rx_ring_jumbo(struct bge_softc *); 439 static void bge_free_rx_ring_jumbo(struct bge_softc *); 440 static void bge_free_tx_ring(struct bge_softc *); 441 static int bge_init_tx_ring(struct bge_softc *); 442 443 static int bge_chipinit(struct bge_softc *); 444 static int bge_blockinit(struct bge_softc *); 445 static uint32_t bge_dma_swap_options(struct bge_softc *); 446 447 static int bge_has_eaddr(struct bge_softc *); 448 static uint32_t bge_readmem_ind(struct bge_softc *, int); 449 static void bge_writemem_ind(struct bge_softc *, int, int); 450 static void bge_writembx(struct bge_softc *, int, int); 451 #ifdef notdef 452 static uint32_t bge_readreg_ind(struct bge_softc *, int); 453 #endif 454 static void bge_writemem_direct(struct bge_softc *, int, int); 455 static void bge_writereg_ind(struct bge_softc *, int, int); 456 457 static int bge_miibus_readreg(device_t, int, int); 458 static int bge_miibus_writereg(device_t, int, int, int); 459 static void bge_miibus_statchg(device_t); 460 #ifdef DEVICE_POLLING 461 static int bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count); 462 #endif 463 464 #define BGE_RESET_START 1 465 #define BGE_RESET_STOP 2 466 static void bge_sig_post_reset(struct bge_softc *, int); 467 static void bge_sig_legacy(struct bge_softc *, int); 468 static void bge_sig_pre_reset(struct bge_softc *, int); 469 static void bge_stop_fw(struct bge_softc *); 470 static int bge_reset(struct bge_softc *); 471 static void bge_link_upd(struct bge_softc *); 472 473 /* 474 * The BGE_REGISTER_DEBUG option is only for low-level debugging. It may 475 * leak information to untrusted users. It is also known to cause alignment 476 * traps on certain architectures. 477 */ 478 #ifdef BGE_REGISTER_DEBUG 479 static int bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS); 480 static int bge_sysctl_reg_read(SYSCTL_HANDLER_ARGS); 481 static int bge_sysctl_mem_read(SYSCTL_HANDLER_ARGS); 482 #endif 483 static void bge_add_sysctls(struct bge_softc *); 484 static void bge_add_sysctl_stats_regs(struct bge_softc *, 485 struct sysctl_ctx_list *, struct sysctl_oid_list *); 486 static void bge_add_sysctl_stats(struct bge_softc *, struct sysctl_ctx_list *, 487 struct sysctl_oid_list *); 488 static int bge_sysctl_stats(SYSCTL_HANDLER_ARGS); 489 490 static device_method_t bge_methods[] = { 491 /* Device interface */ 492 DEVMETHOD(device_probe, bge_probe), 493 DEVMETHOD(device_attach, bge_attach), 494 DEVMETHOD(device_detach, bge_detach), 495 DEVMETHOD(device_shutdown, bge_shutdown), 496 DEVMETHOD(device_suspend, bge_suspend), 497 DEVMETHOD(device_resume, bge_resume), 498 499 /* MII interface */ 500 DEVMETHOD(miibus_readreg, bge_miibus_readreg), 501 DEVMETHOD(miibus_writereg, bge_miibus_writereg), 502 DEVMETHOD(miibus_statchg, bge_miibus_statchg), 503 504 DEVMETHOD_END 505 }; 506 507 static driver_t bge_driver = { 508 "bge", 509 bge_methods, 510 sizeof(struct bge_softc) 511 }; 512 513 static devclass_t bge_devclass; 514 515 DRIVER_MODULE(bge, pci, bge_driver, bge_devclass, 0, 0); 516 DRIVER_MODULE(miibus, bge, miibus_driver, miibus_devclass, 0, 0); 517 518 static int bge_allow_asf = 1; 519 520 TUNABLE_INT("hw.bge.allow_asf", &bge_allow_asf); 521 522 static SYSCTL_NODE(_hw, OID_AUTO, bge, CTLFLAG_RD, 0, "BGE driver parameters"); 523 SYSCTL_INT(_hw_bge, OID_AUTO, allow_asf, CTLFLAG_RD, &bge_allow_asf, 0, 524 "Allow ASF mode if available"); 525 526 #define SPARC64_BLADE_1500_MODEL "SUNW,Sun-Blade-1500" 527 #define SPARC64_BLADE_1500_PATH_BGE "/pci@1f,700000/network@2" 528 #define SPARC64_BLADE_2500_MODEL "SUNW,Sun-Blade-2500" 529 #define SPARC64_BLADE_2500_PATH_BGE "/pci@1c,600000/network@3" 530 #define SPARC64_OFW_SUBVENDOR "subsystem-vendor-id" 531 532 static int 533 bge_has_eaddr(struct bge_softc *sc) 534 { 535 #ifdef __sparc64__ 536 char buf[sizeof(SPARC64_BLADE_1500_PATH_BGE)]; 537 device_t dev; 538 uint32_t subvendor; 539 540 dev = sc->bge_dev; 541 542 /* 543 * The on-board BGEs found in sun4u machines aren't fitted with 544 * an EEPROM which means that we have to obtain the MAC address 545 * via OFW and that some tests will always fail. We distinguish 546 * such BGEs by the subvendor ID, which also has to be obtained 547 * from OFW instead of the PCI configuration space as the latter 548 * indicates Broadcom as the subvendor of the netboot interface. 549 * For early Blade 1500 and 2500 we even have to check the OFW 550 * device path as the subvendor ID always defaults to Broadcom 551 * there. 552 */ 553 if (OF_getprop(ofw_bus_get_node(dev), SPARC64_OFW_SUBVENDOR, 554 &subvendor, sizeof(subvendor)) == sizeof(subvendor) && 555 (subvendor == FJTSU_VENDORID || subvendor == SUN_VENDORID)) 556 return (0); 557 memset(buf, 0, sizeof(buf)); 558 if (OF_package_to_path(ofw_bus_get_node(dev), buf, sizeof(buf)) > 0) { 559 if (strcmp(sparc64_model, SPARC64_BLADE_1500_MODEL) == 0 && 560 strcmp(buf, SPARC64_BLADE_1500_PATH_BGE) == 0) 561 return (0); 562 if (strcmp(sparc64_model, SPARC64_BLADE_2500_MODEL) == 0 && 563 strcmp(buf, SPARC64_BLADE_2500_PATH_BGE) == 0) 564 return (0); 565 } 566 #endif 567 return (1); 568 } 569 570 static uint32_t 571 bge_readmem_ind(struct bge_softc *sc, int off) 572 { 573 device_t dev; 574 uint32_t val; 575 576 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 && 577 off >= BGE_STATS_BLOCK && off < BGE_SEND_RING_1_TO_4) 578 return (0); 579 580 dev = sc->bge_dev; 581 582 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4); 583 val = pci_read_config(dev, BGE_PCI_MEMWIN_DATA, 4); 584 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4); 585 return (val); 586 } 587 588 static void 589 bge_writemem_ind(struct bge_softc *sc, int off, int val) 590 { 591 device_t dev; 592 593 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 && 594 off >= BGE_STATS_BLOCK && off < BGE_SEND_RING_1_TO_4) 595 return; 596 597 dev = sc->bge_dev; 598 599 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4); 600 pci_write_config(dev, BGE_PCI_MEMWIN_DATA, val, 4); 601 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4); 602 } 603 604 #ifdef notdef 605 static uint32_t 606 bge_readreg_ind(struct bge_softc *sc, int off) 607 { 608 device_t dev; 609 610 dev = sc->bge_dev; 611 612 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4); 613 return (pci_read_config(dev, BGE_PCI_REG_DATA, 4)); 614 } 615 #endif 616 617 static void 618 bge_writereg_ind(struct bge_softc *sc, int off, int val) 619 { 620 device_t dev; 621 622 dev = sc->bge_dev; 623 624 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4); 625 pci_write_config(dev, BGE_PCI_REG_DATA, val, 4); 626 } 627 628 static void 629 bge_writemem_direct(struct bge_softc *sc, int off, int val) 630 { 631 CSR_WRITE_4(sc, off, val); 632 } 633 634 static void 635 bge_writembx(struct bge_softc *sc, int off, int val) 636 { 637 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) 638 off += BGE_LPMBX_IRQ0_HI - BGE_MBX_IRQ0_HI; 639 640 CSR_WRITE_4(sc, off, val); 641 if ((sc->bge_flags & BGE_FLAG_MBOX_REORDER) != 0) 642 CSR_READ_4(sc, off); 643 } 644 645 /* 646 * Map a single buffer address. 647 */ 648 649 static void 650 bge_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 651 { 652 struct bge_dmamap_arg *ctx; 653 654 if (error) 655 return; 656 657 KASSERT(nseg == 1, ("%s: %d segments returned!", __func__, nseg)); 658 659 ctx = arg; 660 ctx->bge_busaddr = segs->ds_addr; 661 } 662 663 static uint8_t 664 bge_nvram_getbyte(struct bge_softc *sc, int addr, uint8_t *dest) 665 { 666 uint32_t access, byte = 0; 667 int i; 668 669 /* Lock. */ 670 CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_SET1); 671 for (i = 0; i < 8000; i++) { 672 if (CSR_READ_4(sc, BGE_NVRAM_SWARB) & BGE_NVRAMSWARB_GNT1) 673 break; 674 DELAY(20); 675 } 676 if (i == 8000) 677 return (1); 678 679 /* Enable access. */ 680 access = CSR_READ_4(sc, BGE_NVRAM_ACCESS); 681 CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access | BGE_NVRAMACC_ENABLE); 682 683 CSR_WRITE_4(sc, BGE_NVRAM_ADDR, addr & 0xfffffffc); 684 CSR_WRITE_4(sc, BGE_NVRAM_CMD, BGE_NVRAM_READCMD); 685 for (i = 0; i < BGE_TIMEOUT * 10; i++) { 686 DELAY(10); 687 if (CSR_READ_4(sc, BGE_NVRAM_CMD) & BGE_NVRAMCMD_DONE) { 688 DELAY(10); 689 break; 690 } 691 } 692 693 if (i == BGE_TIMEOUT * 10) { 694 if_printf(sc->bge_ifp, "nvram read timed out\n"); 695 return (1); 696 } 697 698 /* Get result. */ 699 byte = CSR_READ_4(sc, BGE_NVRAM_RDDATA); 700 701 *dest = (bswap32(byte) >> ((addr % 4) * 8)) & 0xFF; 702 703 /* Disable access. */ 704 CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access); 705 706 /* Unlock. */ 707 CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_CLR1); 708 CSR_READ_4(sc, BGE_NVRAM_SWARB); 709 710 return (0); 711 } 712 713 /* 714 * Read a sequence of bytes from NVRAM. 715 */ 716 static int 717 bge_read_nvram(struct bge_softc *sc, caddr_t dest, int off, int cnt) 718 { 719 int err = 0, i; 720 uint8_t byte = 0; 721 722 if (sc->bge_asicrev != BGE_ASICREV_BCM5906) 723 return (1); 724 725 for (i = 0; i < cnt; i++) { 726 err = bge_nvram_getbyte(sc, off + i, &byte); 727 if (err) 728 break; 729 *(dest + i) = byte; 730 } 731 732 return (err ? 1 : 0); 733 } 734 735 /* 736 * Read a byte of data stored in the EEPROM at address 'addr.' The 737 * BCM570x supports both the traditional bitbang interface and an 738 * auto access interface for reading the EEPROM. We use the auto 739 * access method. 740 */ 741 static uint8_t 742 bge_eeprom_getbyte(struct bge_softc *sc, int addr, uint8_t *dest) 743 { 744 int i; 745 uint32_t byte = 0; 746 747 /* 748 * Enable use of auto EEPROM access so we can avoid 749 * having to use the bitbang method. 750 */ 751 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM); 752 753 /* Reset the EEPROM, load the clock period. */ 754 CSR_WRITE_4(sc, BGE_EE_ADDR, 755 BGE_EEADDR_RESET | BGE_EEHALFCLK(BGE_HALFCLK_384SCL)); 756 DELAY(20); 757 758 /* Issue the read EEPROM command. */ 759 CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr); 760 761 /* Wait for completion */ 762 for(i = 0; i < BGE_TIMEOUT * 10; i++) { 763 DELAY(10); 764 if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE) 765 break; 766 } 767 768 if (i == BGE_TIMEOUT * 10) { 769 device_printf(sc->bge_dev, "EEPROM read timed out\n"); 770 return (1); 771 } 772 773 /* Get result. */ 774 byte = CSR_READ_4(sc, BGE_EE_DATA); 775 776 *dest = (byte >> ((addr % 4) * 8)) & 0xFF; 777 778 return (0); 779 } 780 781 /* 782 * Read a sequence of bytes from the EEPROM. 783 */ 784 static int 785 bge_read_eeprom(struct bge_softc *sc, caddr_t dest, int off, int cnt) 786 { 787 int i, error = 0; 788 uint8_t byte = 0; 789 790 for (i = 0; i < cnt; i++) { 791 error = bge_eeprom_getbyte(sc, off + i, &byte); 792 if (error) 793 break; 794 *(dest + i) = byte; 795 } 796 797 return (error ? 1 : 0); 798 } 799 800 static int 801 bge_miibus_readreg(device_t dev, int phy, int reg) 802 { 803 struct bge_softc *sc; 804 uint32_t val; 805 int i; 806 807 sc = device_get_softc(dev); 808 809 /* Clear the autopoll bit if set, otherwise may trigger PCI errors. */ 810 if ((sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) != 0) { 811 CSR_WRITE_4(sc, BGE_MI_MODE, 812 sc->bge_mi_mode & ~BGE_MIMODE_AUTOPOLL); 813 DELAY(80); 814 } 815 816 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ | BGE_MICOMM_BUSY | 817 BGE_MIPHY(phy) | BGE_MIREG(reg)); 818 819 /* Poll for the PHY register access to complete. */ 820 for (i = 0; i < BGE_TIMEOUT; i++) { 821 DELAY(10); 822 val = CSR_READ_4(sc, BGE_MI_COMM); 823 if ((val & BGE_MICOMM_BUSY) == 0) { 824 DELAY(5); 825 val = CSR_READ_4(sc, BGE_MI_COMM); 826 break; 827 } 828 } 829 830 if (i == BGE_TIMEOUT) { 831 device_printf(sc->bge_dev, 832 "PHY read timed out (phy %d, reg %d, val 0x%08x)\n", 833 phy, reg, val); 834 val = 0; 835 } 836 837 /* Restore the autopoll bit if necessary. */ 838 if ((sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) != 0) { 839 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode); 840 DELAY(80); 841 } 842 843 if (val & BGE_MICOMM_READFAIL) 844 return (0); 845 846 return (val & 0xFFFF); 847 } 848 849 static int 850 bge_miibus_writereg(device_t dev, int phy, int reg, int val) 851 { 852 struct bge_softc *sc; 853 int i; 854 855 sc = device_get_softc(dev); 856 857 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 && 858 (reg == BRGPHY_MII_1000CTL || reg == BRGPHY_MII_AUXCTL)) 859 return (0); 860 861 /* Clear the autopoll bit if set, otherwise may trigger PCI errors. */ 862 if ((sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) != 0) { 863 CSR_WRITE_4(sc, BGE_MI_MODE, 864 sc->bge_mi_mode & ~BGE_MIMODE_AUTOPOLL); 865 DELAY(80); 866 } 867 868 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE | BGE_MICOMM_BUSY | 869 BGE_MIPHY(phy) | BGE_MIREG(reg) | val); 870 871 for (i = 0; i < BGE_TIMEOUT; i++) { 872 DELAY(10); 873 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) { 874 DELAY(5); 875 CSR_READ_4(sc, BGE_MI_COMM); /* dummy read */ 876 break; 877 } 878 } 879 880 /* Restore the autopoll bit if necessary. */ 881 if ((sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) != 0) { 882 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode); 883 DELAY(80); 884 } 885 886 if (i == BGE_TIMEOUT) 887 device_printf(sc->bge_dev, 888 "PHY write timed out (phy %d, reg %d, val %d)\n", 889 phy, reg, val); 890 891 return (0); 892 } 893 894 static void 895 bge_miibus_statchg(device_t dev) 896 { 897 struct bge_softc *sc; 898 struct mii_data *mii; 899 sc = device_get_softc(dev); 900 mii = device_get_softc(sc->bge_miibus); 901 902 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 903 (IFM_ACTIVE | IFM_AVALID)) { 904 switch (IFM_SUBTYPE(mii->mii_media_active)) { 905 case IFM_10_T: 906 case IFM_100_TX: 907 sc->bge_link = 1; 908 break; 909 case IFM_1000_T: 910 case IFM_1000_SX: 911 case IFM_2500_SX: 912 if (sc->bge_asicrev != BGE_ASICREV_BCM5906) 913 sc->bge_link = 1; 914 else 915 sc->bge_link = 0; 916 break; 917 default: 918 sc->bge_link = 0; 919 break; 920 } 921 } else 922 sc->bge_link = 0; 923 if (sc->bge_link == 0) 924 return; 925 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE); 926 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T || 927 IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) 928 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII); 929 else 930 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII); 931 932 if (IFM_OPTIONS(mii->mii_media_active & IFM_FDX) != 0) { 933 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); 934 if ((IFM_OPTIONS(mii->mii_media_active) & 935 IFM_ETH_TXPAUSE) != 0) 936 BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_FLOWCTL_ENABLE); 937 else 938 BGE_CLRBIT(sc, BGE_TX_MODE, BGE_TXMODE_FLOWCTL_ENABLE); 939 if ((IFM_OPTIONS(mii->mii_media_active) & 940 IFM_ETH_RXPAUSE) != 0) 941 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_FLOWCTL_ENABLE); 942 else 943 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_FLOWCTL_ENABLE); 944 } else { 945 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); 946 BGE_CLRBIT(sc, BGE_TX_MODE, BGE_TXMODE_FLOWCTL_ENABLE); 947 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_FLOWCTL_ENABLE); 948 } 949 } 950 951 /* 952 * Intialize a standard receive ring descriptor. 953 */ 954 static int 955 bge_newbuf_std(struct bge_softc *sc, int i) 956 { 957 struct mbuf *m; 958 struct bge_rx_bd *r; 959 bus_dma_segment_t segs[1]; 960 bus_dmamap_t map; 961 int error, nsegs; 962 963 if (sc->bge_flags & BGE_FLAG_JUMBO_STD && 964 (sc->bge_ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + 965 ETHER_VLAN_ENCAP_LEN > (MCLBYTES - ETHER_ALIGN))) { 966 m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUM9BYTES); 967 if (m == NULL) 968 return (ENOBUFS); 969 m->m_len = m->m_pkthdr.len = MJUM9BYTES; 970 } else { 971 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 972 if (m == NULL) 973 return (ENOBUFS); 974 m->m_len = m->m_pkthdr.len = MCLBYTES; 975 } 976 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) 977 m_adj(m, ETHER_ALIGN); 978 979 error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_rx_mtag, 980 sc->bge_cdata.bge_rx_std_sparemap, m, segs, &nsegs, 0); 981 if (error != 0) { 982 m_freem(m); 983 return (error); 984 } 985 if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) { 986 bus_dmamap_sync(sc->bge_cdata.bge_rx_mtag, 987 sc->bge_cdata.bge_rx_std_dmamap[i], BUS_DMASYNC_POSTREAD); 988 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag, 989 sc->bge_cdata.bge_rx_std_dmamap[i]); 990 } 991 map = sc->bge_cdata.bge_rx_std_dmamap[i]; 992 sc->bge_cdata.bge_rx_std_dmamap[i] = sc->bge_cdata.bge_rx_std_sparemap; 993 sc->bge_cdata.bge_rx_std_sparemap = map; 994 sc->bge_cdata.bge_rx_std_chain[i] = m; 995 sc->bge_cdata.bge_rx_std_seglen[i] = segs[0].ds_len; 996 r = &sc->bge_ldata.bge_rx_std_ring[sc->bge_std]; 997 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[0].ds_addr); 998 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[0].ds_addr); 999 r->bge_flags = BGE_RXBDFLAG_END; 1000 r->bge_len = segs[0].ds_len; 1001 r->bge_idx = i; 1002 1003 bus_dmamap_sync(sc->bge_cdata.bge_rx_mtag, 1004 sc->bge_cdata.bge_rx_std_dmamap[i], BUS_DMASYNC_PREREAD); 1005 1006 return (0); 1007 } 1008 1009 /* 1010 * Initialize a jumbo receive ring descriptor. This allocates 1011 * a jumbo buffer from the pool managed internally by the driver. 1012 */ 1013 static int 1014 bge_newbuf_jumbo(struct bge_softc *sc, int i) 1015 { 1016 bus_dma_segment_t segs[BGE_NSEG_JUMBO]; 1017 bus_dmamap_t map; 1018 struct bge_extrx_bd *r; 1019 struct mbuf *m; 1020 int error, nsegs; 1021 1022 MGETHDR(m, M_DONTWAIT, MT_DATA); 1023 if (m == NULL) 1024 return (ENOBUFS); 1025 1026 m_cljget(m, M_DONTWAIT, MJUM9BYTES); 1027 if (!(m->m_flags & M_EXT)) { 1028 m_freem(m); 1029 return (ENOBUFS); 1030 } 1031 m->m_len = m->m_pkthdr.len = MJUM9BYTES; 1032 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) 1033 m_adj(m, ETHER_ALIGN); 1034 1035 error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_mtag_jumbo, 1036 sc->bge_cdata.bge_rx_jumbo_sparemap, m, segs, &nsegs, 0); 1037 if (error != 0) { 1038 m_freem(m); 1039 return (error); 1040 } 1041 1042 if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) { 1043 bus_dmamap_sync(sc->bge_cdata.bge_mtag_jumbo, 1044 sc->bge_cdata.bge_rx_jumbo_dmamap[i], BUS_DMASYNC_POSTREAD); 1045 bus_dmamap_unload(sc->bge_cdata.bge_mtag_jumbo, 1046 sc->bge_cdata.bge_rx_jumbo_dmamap[i]); 1047 } 1048 map = sc->bge_cdata.bge_rx_jumbo_dmamap[i]; 1049 sc->bge_cdata.bge_rx_jumbo_dmamap[i] = 1050 sc->bge_cdata.bge_rx_jumbo_sparemap; 1051 sc->bge_cdata.bge_rx_jumbo_sparemap = map; 1052 sc->bge_cdata.bge_rx_jumbo_chain[i] = m; 1053 sc->bge_cdata.bge_rx_jumbo_seglen[i][0] = 0; 1054 sc->bge_cdata.bge_rx_jumbo_seglen[i][1] = 0; 1055 sc->bge_cdata.bge_rx_jumbo_seglen[i][2] = 0; 1056 sc->bge_cdata.bge_rx_jumbo_seglen[i][3] = 0; 1057 1058 /* 1059 * Fill in the extended RX buffer descriptor. 1060 */ 1061 r = &sc->bge_ldata.bge_rx_jumbo_ring[sc->bge_jumbo]; 1062 r->bge_flags = BGE_RXBDFLAG_JUMBO_RING | BGE_RXBDFLAG_END; 1063 r->bge_idx = i; 1064 r->bge_len3 = r->bge_len2 = r->bge_len1 = 0; 1065 switch (nsegs) { 1066 case 4: 1067 r->bge_addr3.bge_addr_lo = BGE_ADDR_LO(segs[3].ds_addr); 1068 r->bge_addr3.bge_addr_hi = BGE_ADDR_HI(segs[3].ds_addr); 1069 r->bge_len3 = segs[3].ds_len; 1070 sc->bge_cdata.bge_rx_jumbo_seglen[i][3] = segs[3].ds_len; 1071 case 3: 1072 r->bge_addr2.bge_addr_lo = BGE_ADDR_LO(segs[2].ds_addr); 1073 r->bge_addr2.bge_addr_hi = BGE_ADDR_HI(segs[2].ds_addr); 1074 r->bge_len2 = segs[2].ds_len; 1075 sc->bge_cdata.bge_rx_jumbo_seglen[i][2] = segs[2].ds_len; 1076 case 2: 1077 r->bge_addr1.bge_addr_lo = BGE_ADDR_LO(segs[1].ds_addr); 1078 r->bge_addr1.bge_addr_hi = BGE_ADDR_HI(segs[1].ds_addr); 1079 r->bge_len1 = segs[1].ds_len; 1080 sc->bge_cdata.bge_rx_jumbo_seglen[i][1] = segs[1].ds_len; 1081 case 1: 1082 r->bge_addr0.bge_addr_lo = BGE_ADDR_LO(segs[0].ds_addr); 1083 r->bge_addr0.bge_addr_hi = BGE_ADDR_HI(segs[0].ds_addr); 1084 r->bge_len0 = segs[0].ds_len; 1085 sc->bge_cdata.bge_rx_jumbo_seglen[i][0] = segs[0].ds_len; 1086 break; 1087 default: 1088 panic("%s: %d segments\n", __func__, nsegs); 1089 } 1090 1091 bus_dmamap_sync(sc->bge_cdata.bge_mtag_jumbo, 1092 sc->bge_cdata.bge_rx_jumbo_dmamap[i], BUS_DMASYNC_PREREAD); 1093 1094 return (0); 1095 } 1096 1097 static int 1098 bge_init_rx_ring_std(struct bge_softc *sc) 1099 { 1100 int error, i; 1101 1102 bzero(sc->bge_ldata.bge_rx_std_ring, BGE_STD_RX_RING_SZ); 1103 sc->bge_std = 0; 1104 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 1105 if ((error = bge_newbuf_std(sc, i)) != 0) 1106 return (error); 1107 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT); 1108 } 1109 1110 bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, 1111 sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_PREWRITE); 1112 1113 sc->bge_std = 0; 1114 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, BGE_STD_RX_RING_CNT - 1); 1115 1116 return (0); 1117 } 1118 1119 static void 1120 bge_free_rx_ring_std(struct bge_softc *sc) 1121 { 1122 int i; 1123 1124 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 1125 if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) { 1126 bus_dmamap_sync(sc->bge_cdata.bge_rx_mtag, 1127 sc->bge_cdata.bge_rx_std_dmamap[i], 1128 BUS_DMASYNC_POSTREAD); 1129 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag, 1130 sc->bge_cdata.bge_rx_std_dmamap[i]); 1131 m_freem(sc->bge_cdata.bge_rx_std_chain[i]); 1132 sc->bge_cdata.bge_rx_std_chain[i] = NULL; 1133 } 1134 bzero((char *)&sc->bge_ldata.bge_rx_std_ring[i], 1135 sizeof(struct bge_rx_bd)); 1136 } 1137 } 1138 1139 static int 1140 bge_init_rx_ring_jumbo(struct bge_softc *sc) 1141 { 1142 struct bge_rcb *rcb; 1143 int error, i; 1144 1145 bzero(sc->bge_ldata.bge_rx_jumbo_ring, BGE_JUMBO_RX_RING_SZ); 1146 sc->bge_jumbo = 0; 1147 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 1148 if ((error = bge_newbuf_jumbo(sc, i)) != 0) 1149 return (error); 1150 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT); 1151 } 1152 1153 bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, 1154 sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_PREWRITE); 1155 1156 sc->bge_jumbo = 0; 1157 1158 /* Enable the jumbo receive producer ring. */ 1159 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb; 1160 rcb->bge_maxlen_flags = 1161 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_USE_EXT_RX_BD); 1162 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); 1163 1164 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, BGE_JUMBO_RX_RING_CNT - 1); 1165 1166 return (0); 1167 } 1168 1169 static void 1170 bge_free_rx_ring_jumbo(struct bge_softc *sc) 1171 { 1172 int i; 1173 1174 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 1175 if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) { 1176 bus_dmamap_sync(sc->bge_cdata.bge_mtag_jumbo, 1177 sc->bge_cdata.bge_rx_jumbo_dmamap[i], 1178 BUS_DMASYNC_POSTREAD); 1179 bus_dmamap_unload(sc->bge_cdata.bge_mtag_jumbo, 1180 sc->bge_cdata.bge_rx_jumbo_dmamap[i]); 1181 m_freem(sc->bge_cdata.bge_rx_jumbo_chain[i]); 1182 sc->bge_cdata.bge_rx_jumbo_chain[i] = NULL; 1183 } 1184 bzero((char *)&sc->bge_ldata.bge_rx_jumbo_ring[i], 1185 sizeof(struct bge_extrx_bd)); 1186 } 1187 } 1188 1189 static void 1190 bge_free_tx_ring(struct bge_softc *sc) 1191 { 1192 int i; 1193 1194 if (sc->bge_ldata.bge_tx_ring == NULL) 1195 return; 1196 1197 for (i = 0; i < BGE_TX_RING_CNT; i++) { 1198 if (sc->bge_cdata.bge_tx_chain[i] != NULL) { 1199 bus_dmamap_sync(sc->bge_cdata.bge_tx_mtag, 1200 sc->bge_cdata.bge_tx_dmamap[i], 1201 BUS_DMASYNC_POSTWRITE); 1202 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag, 1203 sc->bge_cdata.bge_tx_dmamap[i]); 1204 m_freem(sc->bge_cdata.bge_tx_chain[i]); 1205 sc->bge_cdata.bge_tx_chain[i] = NULL; 1206 } 1207 bzero((char *)&sc->bge_ldata.bge_tx_ring[i], 1208 sizeof(struct bge_tx_bd)); 1209 } 1210 } 1211 1212 static int 1213 bge_init_tx_ring(struct bge_softc *sc) 1214 { 1215 sc->bge_txcnt = 0; 1216 sc->bge_tx_saved_considx = 0; 1217 1218 bzero(sc->bge_ldata.bge_tx_ring, BGE_TX_RING_SZ); 1219 bus_dmamap_sync(sc->bge_cdata.bge_tx_ring_tag, 1220 sc->bge_cdata.bge_tx_ring_map, BUS_DMASYNC_PREWRITE); 1221 1222 /* Initialize transmit producer index for host-memory send ring. */ 1223 sc->bge_tx_prodidx = 0; 1224 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx); 1225 1226 /* 5700 b2 errata */ 1227 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) 1228 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx); 1229 1230 /* NIC-memory send ring not used; initialize to zero. */ 1231 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); 1232 /* 5700 b2 errata */ 1233 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) 1234 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); 1235 1236 return (0); 1237 } 1238 1239 static void 1240 bge_setpromisc(struct bge_softc *sc) 1241 { 1242 struct ifnet *ifp; 1243 1244 BGE_LOCK_ASSERT(sc); 1245 1246 ifp = sc->bge_ifp; 1247 1248 /* Enable or disable promiscuous mode as needed. */ 1249 if (ifp->if_flags & IFF_PROMISC) 1250 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); 1251 else 1252 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); 1253 } 1254 1255 static void 1256 bge_setmulti(struct bge_softc *sc) 1257 { 1258 struct ifnet *ifp; 1259 struct ifmultiaddr *ifma; 1260 uint32_t hashes[4] = { 0, 0, 0, 0 }; 1261 int h, i; 1262 1263 BGE_LOCK_ASSERT(sc); 1264 1265 ifp = sc->bge_ifp; 1266 1267 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 1268 for (i = 0; i < 4; i++) 1269 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF); 1270 return; 1271 } 1272 1273 /* First, zot all the existing filters. */ 1274 for (i = 0; i < 4; i++) 1275 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0); 1276 1277 /* Now program new ones. */ 1278 if_maddr_rlock(ifp); 1279 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1280 if (ifma->ifma_addr->sa_family != AF_LINK) 1281 continue; 1282 h = ether_crc32_le(LLADDR((struct sockaddr_dl *) 1283 ifma->ifma_addr), ETHER_ADDR_LEN) & 0x7F; 1284 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F); 1285 } 1286 if_maddr_runlock(ifp); 1287 1288 for (i = 0; i < 4; i++) 1289 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]); 1290 } 1291 1292 static void 1293 bge_setvlan(struct bge_softc *sc) 1294 { 1295 struct ifnet *ifp; 1296 1297 BGE_LOCK_ASSERT(sc); 1298 1299 ifp = sc->bge_ifp; 1300 1301 /* Enable or disable VLAN tag stripping as needed. */ 1302 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) 1303 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_KEEP_VLAN_DIAG); 1304 else 1305 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_KEEP_VLAN_DIAG); 1306 } 1307 1308 static void 1309 bge_sig_pre_reset(struct bge_softc *sc, int type) 1310 { 1311 1312 /* 1313 * Some chips don't like this so only do this if ASF is enabled 1314 */ 1315 if (sc->bge_asf_mode) 1316 bge_writemem_ind(sc, BGE_SRAM_FW_MB, BGE_SRAM_FW_MB_MAGIC); 1317 1318 if (sc->bge_asf_mode & ASF_NEW_HANDSHAKE) { 1319 switch (type) { 1320 case BGE_RESET_START: 1321 bge_writemem_ind(sc, BGE_SRAM_FW_DRV_STATE_MB, 1322 BGE_FW_DRV_STATE_START); 1323 break; 1324 case BGE_RESET_STOP: 1325 bge_writemem_ind(sc, BGE_SRAM_FW_DRV_STATE_MB, 1326 BGE_FW_DRV_STATE_UNLOAD); 1327 break; 1328 } 1329 } 1330 } 1331 1332 static void 1333 bge_sig_post_reset(struct bge_softc *sc, int type) 1334 { 1335 1336 if (sc->bge_asf_mode & ASF_NEW_HANDSHAKE) { 1337 switch (type) { 1338 case BGE_RESET_START: 1339 bge_writemem_ind(sc, BGE_SRAM_FW_DRV_STATE_MB, 1340 BGE_FW_DRV_STATE_START_DONE); 1341 /* START DONE */ 1342 break; 1343 case BGE_RESET_STOP: 1344 bge_writemem_ind(sc, BGE_SRAM_FW_DRV_STATE_MB, 1345 BGE_FW_DRV_STATE_UNLOAD_DONE); 1346 break; 1347 } 1348 } 1349 } 1350 1351 static void 1352 bge_sig_legacy(struct bge_softc *sc, int type) 1353 { 1354 1355 if (sc->bge_asf_mode) { 1356 switch (type) { 1357 case BGE_RESET_START: 1358 bge_writemem_ind(sc, BGE_SRAM_FW_DRV_STATE_MB, 1359 BGE_FW_DRV_STATE_START); 1360 break; 1361 case BGE_RESET_STOP: 1362 bge_writemem_ind(sc, BGE_SRAM_FW_DRV_STATE_MB, 1363 BGE_FW_DRV_STATE_UNLOAD); 1364 break; 1365 } 1366 } 1367 } 1368 1369 static void 1370 bge_stop_fw(struct bge_softc *sc) 1371 { 1372 int i; 1373 1374 if (sc->bge_asf_mode) { 1375 bge_writemem_ind(sc, BGE_SRAM_FW_CMD_MB, BGE_FW_CMD_PAUSE); 1376 CSR_WRITE_4(sc, BGE_RX_CPU_EVENT, 1377 CSR_READ_4(sc, BGE_RX_CPU_EVENT) | BGE_RX_CPU_DRV_EVENT); 1378 1379 for (i = 0; i < 100; i++ ) { 1380 if (!(CSR_READ_4(sc, BGE_RX_CPU_EVENT) & 1381 BGE_RX_CPU_DRV_EVENT)) 1382 break; 1383 DELAY(10); 1384 } 1385 } 1386 } 1387 1388 static uint32_t 1389 bge_dma_swap_options(struct bge_softc *sc) 1390 { 1391 uint32_t dma_options; 1392 1393 dma_options = BGE_MODECTL_WORDSWAP_NONFRAME | 1394 BGE_MODECTL_BYTESWAP_DATA | BGE_MODECTL_WORDSWAP_DATA; 1395 #if BYTE_ORDER == BIG_ENDIAN 1396 dma_options |= BGE_MODECTL_BYTESWAP_NONFRAME; 1397 #endif 1398 if ((sc)->bge_asicrev == BGE_ASICREV_BCM5720) 1399 dma_options |= BGE_MODECTL_BYTESWAP_B2HRX_DATA | 1400 BGE_MODECTL_WORDSWAP_B2HRX_DATA | BGE_MODECTL_B2HRX_ENABLE | 1401 BGE_MODECTL_HTX2B_ENABLE; 1402 1403 return (dma_options); 1404 } 1405 1406 /* 1407 * Do endian, PCI and DMA initialization. 1408 */ 1409 static int 1410 bge_chipinit(struct bge_softc *sc) 1411 { 1412 uint32_t dma_rw_ctl, misc_ctl, mode_ctl; 1413 uint16_t val; 1414 int i; 1415 1416 /* Set endianness before we access any non-PCI registers. */ 1417 misc_ctl = BGE_INIT; 1418 if (sc->bge_flags & BGE_FLAG_TAGGED_STATUS) 1419 misc_ctl |= BGE_PCIMISCCTL_TAGGED_STATUS; 1420 pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL, misc_ctl, 4); 1421 1422 /* Clear the MAC control register */ 1423 CSR_WRITE_4(sc, BGE_MAC_MODE, 0); 1424 1425 /* 1426 * Clear the MAC statistics block in the NIC's 1427 * internal memory. 1428 */ 1429 for (i = BGE_STATS_BLOCK; 1430 i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t)) 1431 BGE_MEMWIN_WRITE(sc, i, 0); 1432 1433 for (i = BGE_STATUS_BLOCK; 1434 i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t)) 1435 BGE_MEMWIN_WRITE(sc, i, 0); 1436 1437 if (sc->bge_chiprev == BGE_CHIPREV_5704_BX) { 1438 /* 1439 * Fix data corruption caused by non-qword write with WB. 1440 * Fix master abort in PCI mode. 1441 * Fix PCI latency timer. 1442 */ 1443 val = pci_read_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, 2); 1444 val |= (1 << 10) | (1 << 12) | (1 << 13); 1445 pci_write_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, val, 2); 1446 } 1447 1448 /* 1449 * Set up the PCI DMA control register. 1450 */ 1451 dma_rw_ctl = BGE_PCIDMARWCTL_RD_CMD_SHIFT(6) | 1452 BGE_PCIDMARWCTL_WR_CMD_SHIFT(7); 1453 if (sc->bge_flags & BGE_FLAG_PCIE) { 1454 /* Read watermark not used, 128 bytes for write. */ 1455 dma_rw_ctl |= BGE_PCIDMARWCTL_WR_WAT_SHIFT(3); 1456 } else if (sc->bge_flags & BGE_FLAG_PCIX) { 1457 if (BGE_IS_5714_FAMILY(sc)) { 1458 /* 256 bytes for read and write. */ 1459 dma_rw_ctl |= BGE_PCIDMARWCTL_RD_WAT_SHIFT(2) | 1460 BGE_PCIDMARWCTL_WR_WAT_SHIFT(2); 1461 dma_rw_ctl |= (sc->bge_asicrev == BGE_ASICREV_BCM5780) ? 1462 BGE_PCIDMARWCTL_ONEDMA_ATONCE_GLOBAL : 1463 BGE_PCIDMARWCTL_ONEDMA_ATONCE_LOCAL; 1464 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5703) { 1465 /* 1466 * In the BCM5703, the DMA read watermark should 1467 * be set to less than or equal to the maximum 1468 * memory read byte count of the PCI-X command 1469 * register. 1470 */ 1471 dma_rw_ctl |= BGE_PCIDMARWCTL_RD_WAT_SHIFT(4) | 1472 BGE_PCIDMARWCTL_WR_WAT_SHIFT(3); 1473 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) { 1474 /* 1536 bytes for read, 384 bytes for write. */ 1475 dma_rw_ctl |= BGE_PCIDMARWCTL_RD_WAT_SHIFT(7) | 1476 BGE_PCIDMARWCTL_WR_WAT_SHIFT(3); 1477 } else { 1478 /* 384 bytes for read and write. */ 1479 dma_rw_ctl |= BGE_PCIDMARWCTL_RD_WAT_SHIFT(3) | 1480 BGE_PCIDMARWCTL_WR_WAT_SHIFT(3) | 1481 0x0F; 1482 } 1483 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 || 1484 sc->bge_asicrev == BGE_ASICREV_BCM5704) { 1485 uint32_t tmp; 1486 1487 /* Set ONE_DMA_AT_ONCE for hardware workaround. */ 1488 tmp = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1F; 1489 if (tmp == 6 || tmp == 7) 1490 dma_rw_ctl |= 1491 BGE_PCIDMARWCTL_ONEDMA_ATONCE_GLOBAL; 1492 1493 /* Set PCI-X DMA write workaround. */ 1494 dma_rw_ctl |= BGE_PCIDMARWCTL_ASRT_ALL_BE; 1495 } 1496 } else { 1497 /* Conventional PCI bus: 256 bytes for read and write. */ 1498 dma_rw_ctl |= BGE_PCIDMARWCTL_RD_WAT_SHIFT(7) | 1499 BGE_PCIDMARWCTL_WR_WAT_SHIFT(7); 1500 1501 if (sc->bge_asicrev != BGE_ASICREV_BCM5705 && 1502 sc->bge_asicrev != BGE_ASICREV_BCM5750) 1503 dma_rw_ctl |= 0x0F; 1504 } 1505 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 || 1506 sc->bge_asicrev == BGE_ASICREV_BCM5701) 1507 dma_rw_ctl |= BGE_PCIDMARWCTL_USE_MRM | 1508 BGE_PCIDMARWCTL_ASRT_ALL_BE; 1509 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 || 1510 sc->bge_asicrev == BGE_ASICREV_BCM5704) 1511 dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA; 1512 if (BGE_IS_5717_PLUS(sc)) { 1513 dma_rw_ctl &= ~BGE_PCIDMARWCTL_DIS_CACHE_ALIGNMENT; 1514 if (sc->bge_chipid == BGE_CHIPID_BCM57765_A0) 1515 dma_rw_ctl &= ~BGE_PCIDMARWCTL_CRDRDR_RDMA_MRRS_MSK; 1516 /* 1517 * Enable HW workaround for controllers that misinterpret 1518 * a status tag update and leave interrupts permanently 1519 * disabled. 1520 */ 1521 if (sc->bge_asicrev != BGE_ASICREV_BCM5717 && 1522 sc->bge_asicrev != BGE_ASICREV_BCM57765) 1523 dma_rw_ctl |= BGE_PCIDMARWCTL_TAGGED_STATUS_WA; 1524 } 1525 pci_write_config(sc->bge_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4); 1526 1527 /* 1528 * Set up general mode register. 1529 */ 1530 mode_ctl = bge_dma_swap_options(sc) | BGE_MODECTL_MAC_ATTN_INTR | 1531 BGE_MODECTL_HOST_SEND_BDS | BGE_MODECTL_TX_NO_PHDR_CSUM; 1532 1533 /* 1534 * BCM5701 B5 have a bug causing data corruption when using 1535 * 64-bit DMA reads, which can be terminated early and then 1536 * completed later as 32-bit accesses, in combination with 1537 * certain bridges. 1538 */ 1539 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 && 1540 sc->bge_chipid == BGE_CHIPID_BCM5701_B5) 1541 mode_ctl |= BGE_MODECTL_FORCE_PCI32; 1542 1543 /* 1544 * Tell the firmware the driver is running 1545 */ 1546 if (sc->bge_asf_mode & ASF_STACKUP) 1547 mode_ctl |= BGE_MODECTL_STACKUP; 1548 1549 CSR_WRITE_4(sc, BGE_MODE_CTL, mode_ctl); 1550 1551 /* 1552 * Disable memory write invalidate. Apparently it is not supported 1553 * properly by these devices. Also ensure that INTx isn't disabled, 1554 * as these chips need it even when using MSI. 1555 */ 1556 PCI_CLRBIT(sc->bge_dev, BGE_PCI_CMD, 1557 PCIM_CMD_INTxDIS | PCIM_CMD_MWIEN, 4); 1558 1559 /* Set the timer prescaler (always 66Mhz) */ 1560 CSR_WRITE_4(sc, BGE_MISC_CFG, BGE_32BITTIME_66MHZ); 1561 1562 /* XXX: The Linux tg3 driver does this at the start of brgphy_reset. */ 1563 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) { 1564 DELAY(40); /* XXX */ 1565 1566 /* Put PHY into ready state */ 1567 BGE_CLRBIT(sc, BGE_MISC_CFG, BGE_MISCCFG_EPHY_IDDQ); 1568 CSR_READ_4(sc, BGE_MISC_CFG); /* Flush */ 1569 DELAY(40); 1570 } 1571 1572 return (0); 1573 } 1574 1575 static int 1576 bge_blockinit(struct bge_softc *sc) 1577 { 1578 struct bge_rcb *rcb; 1579 bus_size_t vrcb; 1580 bge_hostaddr taddr; 1581 uint32_t dmactl, val; 1582 int i, limit; 1583 1584 /* 1585 * Initialize the memory window pointer register so that 1586 * we can access the first 32K of internal NIC RAM. This will 1587 * allow us to set up the TX send ring RCBs and the RX return 1588 * ring RCBs, plus other things which live in NIC memory. 1589 */ 1590 CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0); 1591 1592 /* Note: the BCM5704 has a smaller mbuf space than other chips. */ 1593 1594 if (!(BGE_IS_5705_PLUS(sc))) { 1595 /* Configure mbuf memory pool */ 1596 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1); 1597 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) 1598 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000); 1599 else 1600 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); 1601 1602 /* Configure DMA resource pool */ 1603 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR, 1604 BGE_DMA_DESCRIPTORS); 1605 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000); 1606 } 1607 1608 /* Configure mbuf pool watermarks */ 1609 if (BGE_IS_5717_PLUS(sc)) { 1610 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0); 1611 if (sc->bge_ifp->if_mtu > ETHERMTU) { 1612 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x7e); 1613 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0xea); 1614 } else { 1615 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x2a); 1616 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0xa0); 1617 } 1618 } else if (!BGE_IS_5705_PLUS(sc)) { 1619 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50); 1620 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20); 1621 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60); 1622 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5906) { 1623 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0); 1624 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x04); 1625 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x10); 1626 } else { 1627 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0); 1628 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10); 1629 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60); 1630 } 1631 1632 /* Configure DMA resource watermarks */ 1633 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5); 1634 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10); 1635 1636 /* Enable buffer manager */ 1637 val = BGE_BMANMODE_ENABLE | BGE_BMANMODE_LOMBUF_ATTN; 1638 /* 1639 * Change the arbitration algorithm of TXMBUF read request to 1640 * round-robin instead of priority based for BCM5719. When 1641 * TXFIFO is almost empty, RDMA will hold its request until 1642 * TXFIFO is not almost empty. 1643 */ 1644 if (sc->bge_asicrev == BGE_ASICREV_BCM5719) 1645 val |= BGE_BMANMODE_NO_TX_UNDERRUN; 1646 CSR_WRITE_4(sc, BGE_BMAN_MODE, val); 1647 1648 /* Poll for buffer manager start indication */ 1649 for (i = 0; i < BGE_TIMEOUT; i++) { 1650 DELAY(10); 1651 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE) 1652 break; 1653 } 1654 1655 if (i == BGE_TIMEOUT) { 1656 device_printf(sc->bge_dev, "buffer manager failed to start\n"); 1657 return (ENXIO); 1658 } 1659 1660 /* Enable flow-through queues */ 1661 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); 1662 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); 1663 1664 /* Wait until queue initialization is complete */ 1665 for (i = 0; i < BGE_TIMEOUT; i++) { 1666 DELAY(10); 1667 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0) 1668 break; 1669 } 1670 1671 if (i == BGE_TIMEOUT) { 1672 device_printf(sc->bge_dev, "flow-through queue init failed\n"); 1673 return (ENXIO); 1674 } 1675 1676 /* 1677 * Summary of rings supported by the controller: 1678 * 1679 * Standard Receive Producer Ring 1680 * - This ring is used to feed receive buffers for "standard" 1681 * sized frames (typically 1536 bytes) to the controller. 1682 * 1683 * Jumbo Receive Producer Ring 1684 * - This ring is used to feed receive buffers for jumbo sized 1685 * frames (i.e. anything bigger than the "standard" frames) 1686 * to the controller. 1687 * 1688 * Mini Receive Producer Ring 1689 * - This ring is used to feed receive buffers for "mini" 1690 * sized frames to the controller. 1691 * - This feature required external memory for the controller 1692 * but was never used in a production system. Should always 1693 * be disabled. 1694 * 1695 * Receive Return Ring 1696 * - After the controller has placed an incoming frame into a 1697 * receive buffer that buffer is moved into a receive return 1698 * ring. The driver is then responsible to passing the 1699 * buffer up to the stack. Many versions of the controller 1700 * support multiple RR rings. 1701 * 1702 * Send Ring 1703 * - This ring is used for outgoing frames. Many versions of 1704 * the controller support multiple send rings. 1705 */ 1706 1707 /* Initialize the standard receive producer ring control block. */ 1708 rcb = &sc->bge_ldata.bge_info.bge_std_rx_rcb; 1709 rcb->bge_hostaddr.bge_addr_lo = 1710 BGE_ADDR_LO(sc->bge_ldata.bge_rx_std_ring_paddr); 1711 rcb->bge_hostaddr.bge_addr_hi = 1712 BGE_ADDR_HI(sc->bge_ldata.bge_rx_std_ring_paddr); 1713 bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, 1714 sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_PREREAD); 1715 if (BGE_IS_5717_PLUS(sc)) { 1716 /* 1717 * Bits 31-16: Programmable ring size (2048, 1024, 512, .., 32) 1718 * Bits 15-2 : Maximum RX frame size 1719 * Bit 1 : 1 = Ring Disabled, 0 = Ring ENabled 1720 * Bit 0 : Reserved 1721 */ 1722 rcb->bge_maxlen_flags = 1723 BGE_RCB_MAXLEN_FLAGS(512, BGE_MAX_FRAMELEN << 2); 1724 } else if (BGE_IS_5705_PLUS(sc)) { 1725 /* 1726 * Bits 31-16: Programmable ring size (512, 256, 128, 64, 32) 1727 * Bits 15-2 : Reserved (should be 0) 1728 * Bit 1 : 1 = Ring Disabled, 0 = Ring Enabled 1729 * Bit 0 : Reserved 1730 */ 1731 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0); 1732 } else { 1733 /* 1734 * Ring size is always XXX entries 1735 * Bits 31-16: Maximum RX frame size 1736 * Bits 15-2 : Reserved (should be 0) 1737 * Bit 1 : 1 = Ring Disabled, 0 = Ring Enabled 1738 * Bit 0 : Reserved 1739 */ 1740 rcb->bge_maxlen_flags = 1741 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0); 1742 } 1743 if (sc->bge_asicrev == BGE_ASICREV_BCM5717 || 1744 sc->bge_asicrev == BGE_ASICREV_BCM5719 || 1745 sc->bge_asicrev == BGE_ASICREV_BCM5720) 1746 rcb->bge_nicaddr = BGE_STD_RX_RINGS_5717; 1747 else 1748 rcb->bge_nicaddr = BGE_STD_RX_RINGS; 1749 /* Write the standard receive producer ring control block. */ 1750 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi); 1751 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo); 1752 CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); 1753 CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr); 1754 1755 /* Reset the standard receive producer ring producer index. */ 1756 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, 0); 1757 1758 /* 1759 * Initialize the jumbo RX producer ring control 1760 * block. We set the 'ring disabled' bit in the 1761 * flags field until we're actually ready to start 1762 * using this ring (i.e. once we set the MTU 1763 * high enough to require it). 1764 */ 1765 if (BGE_IS_JUMBO_CAPABLE(sc)) { 1766 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb; 1767 /* Get the jumbo receive producer ring RCB parameters. */ 1768 rcb->bge_hostaddr.bge_addr_lo = 1769 BGE_ADDR_LO(sc->bge_ldata.bge_rx_jumbo_ring_paddr); 1770 rcb->bge_hostaddr.bge_addr_hi = 1771 BGE_ADDR_HI(sc->bge_ldata.bge_rx_jumbo_ring_paddr); 1772 bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, 1773 sc->bge_cdata.bge_rx_jumbo_ring_map, 1774 BUS_DMASYNC_PREREAD); 1775 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 1776 BGE_RCB_FLAG_USE_EXT_RX_BD | BGE_RCB_FLAG_RING_DISABLED); 1777 if (sc->bge_asicrev == BGE_ASICREV_BCM5717 || 1778 sc->bge_asicrev == BGE_ASICREV_BCM5719 || 1779 sc->bge_asicrev == BGE_ASICREV_BCM5720) 1780 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS_5717; 1781 else 1782 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS; 1783 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI, 1784 rcb->bge_hostaddr.bge_addr_hi); 1785 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO, 1786 rcb->bge_hostaddr.bge_addr_lo); 1787 /* Program the jumbo receive producer ring RCB parameters. */ 1788 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, 1789 rcb->bge_maxlen_flags); 1790 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr); 1791 /* Reset the jumbo receive producer ring producer index. */ 1792 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0); 1793 } 1794 1795 /* Disable the mini receive producer ring RCB. */ 1796 if (BGE_IS_5700_FAMILY(sc)) { 1797 rcb = &sc->bge_ldata.bge_info.bge_mini_rx_rcb; 1798 rcb->bge_maxlen_flags = 1799 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED); 1800 CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS, 1801 rcb->bge_maxlen_flags); 1802 /* Reset the mini receive producer ring producer index. */ 1803 bge_writembx(sc, BGE_MBX_RX_MINI_PROD_LO, 0); 1804 } 1805 1806 /* Choose de-pipeline mode for BCM5906 A0, A1 and A2. */ 1807 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) { 1808 if (sc->bge_chipid == BGE_CHIPID_BCM5906_A0 || 1809 sc->bge_chipid == BGE_CHIPID_BCM5906_A1 || 1810 sc->bge_chipid == BGE_CHIPID_BCM5906_A2) 1811 CSR_WRITE_4(sc, BGE_ISO_PKT_TX, 1812 (CSR_READ_4(sc, BGE_ISO_PKT_TX) & ~3) | 2); 1813 } 1814 /* 1815 * The BD ring replenish thresholds control how often the 1816 * hardware fetches new BD's from the producer rings in host 1817 * memory. Setting the value too low on a busy system can 1818 * starve the hardware and recue the throughpout. 1819 * 1820 * Set the BD ring replentish thresholds. The recommended 1821 * values are 1/8th the number of descriptors allocated to 1822 * each ring. 1823 * XXX The 5754 requires a lower threshold, so it might be a 1824 * requirement of all 575x family chips. The Linux driver sets 1825 * the lower threshold for all 5705 family chips as well, but there 1826 * are reports that it might not need to be so strict. 1827 * 1828 * XXX Linux does some extra fiddling here for the 5906 parts as 1829 * well. 1830 */ 1831 if (BGE_IS_5705_PLUS(sc)) 1832 val = 8; 1833 else 1834 val = BGE_STD_RX_RING_CNT / 8; 1835 CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, val); 1836 if (BGE_IS_JUMBO_CAPABLE(sc)) 1837 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH, 1838 BGE_JUMBO_RX_RING_CNT/8); 1839 if (BGE_IS_5717_PLUS(sc)) { 1840 CSR_WRITE_4(sc, BGE_STD_REPLENISH_LWM, 32); 1841 CSR_WRITE_4(sc, BGE_JMB_REPLENISH_LWM, 16); 1842 } 1843 1844 /* 1845 * Disable all send rings by setting the 'ring disabled' bit 1846 * in the flags field of all the TX send ring control blocks, 1847 * located in NIC memory. 1848 */ 1849 if (!BGE_IS_5705_PLUS(sc)) 1850 /* 5700 to 5704 had 16 send rings. */ 1851 limit = BGE_TX_RINGS_EXTSSRAM_MAX; 1852 else 1853 limit = 1; 1854 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB; 1855 for (i = 0; i < limit; i++) { 1856 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, 1857 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED)); 1858 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0); 1859 vrcb += sizeof(struct bge_rcb); 1860 } 1861 1862 /* Configure send ring RCB 0 (we use only the first ring) */ 1863 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB; 1864 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_tx_ring_paddr); 1865 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); 1866 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); 1867 if (sc->bge_asicrev == BGE_ASICREV_BCM5717 || 1868 sc->bge_asicrev == BGE_ASICREV_BCM5719 || 1869 sc->bge_asicrev == BGE_ASICREV_BCM5720) 1870 RCB_WRITE_4(sc, vrcb, bge_nicaddr, BGE_SEND_RING_5717); 1871 else 1872 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 1873 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT)); 1874 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, 1875 BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0)); 1876 1877 /* 1878 * Disable all receive return rings by setting the 1879 * 'ring diabled' bit in the flags field of all the receive 1880 * return ring control blocks, located in NIC memory. 1881 */ 1882 if (sc->bge_asicrev == BGE_ASICREV_BCM5717 || 1883 sc->bge_asicrev == BGE_ASICREV_BCM5719 || 1884 sc->bge_asicrev == BGE_ASICREV_BCM5720) { 1885 /* Should be 17, use 16 until we get an SRAM map. */ 1886 limit = 16; 1887 } else if (!BGE_IS_5705_PLUS(sc)) 1888 limit = BGE_RX_RINGS_MAX; 1889 else if (sc->bge_asicrev == BGE_ASICREV_BCM5755 || 1890 sc->bge_asicrev == BGE_ASICREV_BCM57765) 1891 limit = 4; 1892 else 1893 limit = 1; 1894 /* Disable all receive return rings. */ 1895 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; 1896 for (i = 0; i < limit; i++) { 1897 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0); 1898 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0); 1899 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, 1900 BGE_RCB_FLAG_RING_DISABLED); 1901 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0); 1902 bge_writembx(sc, BGE_MBX_RX_CONS0_LO + 1903 (i * (sizeof(uint64_t))), 0); 1904 vrcb += sizeof(struct bge_rcb); 1905 } 1906 1907 /* 1908 * Set up receive return ring 0. Note that the NIC address 1909 * for RX return rings is 0x0. The return rings live entirely 1910 * within the host, so the nicaddr field in the RCB isn't used. 1911 */ 1912 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; 1913 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_rx_return_ring_paddr); 1914 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); 1915 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); 1916 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0); 1917 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags, 1918 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0)); 1919 1920 /* Set random backoff seed for TX */ 1921 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF, 1922 IF_LLADDR(sc->bge_ifp)[0] + IF_LLADDR(sc->bge_ifp)[1] + 1923 IF_LLADDR(sc->bge_ifp)[2] + IF_LLADDR(sc->bge_ifp)[3] + 1924 IF_LLADDR(sc->bge_ifp)[4] + IF_LLADDR(sc->bge_ifp)[5] + 1925 BGE_TX_BACKOFF_SEED_MASK); 1926 1927 /* Set inter-packet gap */ 1928 val = 0x2620; 1929 if (sc->bge_asicrev == BGE_ASICREV_BCM5720) 1930 val |= CSR_READ_4(sc, BGE_TX_LENGTHS) & 1931 (BGE_TXLEN_JMB_FRM_LEN_MSK | BGE_TXLEN_CNT_DN_VAL_MSK); 1932 CSR_WRITE_4(sc, BGE_TX_LENGTHS, val); 1933 1934 /* 1935 * Specify which ring to use for packets that don't match 1936 * any RX rules. 1937 */ 1938 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08); 1939 1940 /* 1941 * Configure number of RX lists. One interrupt distribution 1942 * list, sixteen active lists, one bad frames class. 1943 */ 1944 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181); 1945 1946 /* Inialize RX list placement stats mask. */ 1947 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF); 1948 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1); 1949 1950 /* Disable host coalescing until we get it set up */ 1951 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000); 1952 1953 /* Poll to make sure it's shut down. */ 1954 for (i = 0; i < BGE_TIMEOUT; i++) { 1955 DELAY(10); 1956 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE)) 1957 break; 1958 } 1959 1960 if (i == BGE_TIMEOUT) { 1961 device_printf(sc->bge_dev, 1962 "host coalescing engine failed to idle\n"); 1963 return (ENXIO); 1964 } 1965 1966 /* Set up host coalescing defaults */ 1967 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks); 1968 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks); 1969 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds); 1970 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds); 1971 if (!(BGE_IS_5705_PLUS(sc))) { 1972 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0); 1973 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0); 1974 } 1975 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 1); 1976 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 1); 1977 1978 /* Set up address of statistics block */ 1979 if (!(BGE_IS_5705_PLUS(sc))) { 1980 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI, 1981 BGE_ADDR_HI(sc->bge_ldata.bge_stats_paddr)); 1982 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO, 1983 BGE_ADDR_LO(sc->bge_ldata.bge_stats_paddr)); 1984 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK); 1985 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK); 1986 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks); 1987 } 1988 1989 /* Set up address of status block */ 1990 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI, 1991 BGE_ADDR_HI(sc->bge_ldata.bge_status_block_paddr)); 1992 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO, 1993 BGE_ADDR_LO(sc->bge_ldata.bge_status_block_paddr)); 1994 1995 /* Set up status block size. */ 1996 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && 1997 sc->bge_chipid != BGE_CHIPID_BCM5700_C0) { 1998 val = BGE_STATBLKSZ_FULL; 1999 bzero(sc->bge_ldata.bge_status_block, BGE_STATUS_BLK_SZ); 2000 } else { 2001 val = BGE_STATBLKSZ_32BYTE; 2002 bzero(sc->bge_ldata.bge_status_block, 32); 2003 } 2004 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 2005 sc->bge_cdata.bge_status_map, 2006 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2007 2008 /* Turn on host coalescing state machine */ 2009 CSR_WRITE_4(sc, BGE_HCC_MODE, val | BGE_HCCMODE_ENABLE); 2010 2011 /* Turn on RX BD completion state machine and enable attentions */ 2012 CSR_WRITE_4(sc, BGE_RBDC_MODE, 2013 BGE_RBDCMODE_ENABLE | BGE_RBDCMODE_ATTN); 2014 2015 /* Turn on RX list placement state machine */ 2016 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); 2017 2018 /* Turn on RX list selector state machine. */ 2019 if (!(BGE_IS_5705_PLUS(sc))) 2020 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); 2021 2022 val = BGE_MACMODE_TXDMA_ENB | BGE_MACMODE_RXDMA_ENB | 2023 BGE_MACMODE_RX_STATS_CLEAR | BGE_MACMODE_TX_STATS_CLEAR | 2024 BGE_MACMODE_RX_STATS_ENB | BGE_MACMODE_TX_STATS_ENB | 2025 BGE_MACMODE_FRMHDR_DMA_ENB; 2026 2027 if (sc->bge_flags & BGE_FLAG_TBI) 2028 val |= BGE_PORTMODE_TBI; 2029 else if (sc->bge_flags & BGE_FLAG_MII_SERDES) 2030 val |= BGE_PORTMODE_GMII; 2031 else 2032 val |= BGE_PORTMODE_MII; 2033 2034 /* Turn on DMA, clear stats */ 2035 CSR_WRITE_4(sc, BGE_MAC_MODE, val); 2036 2037 /* Set misc. local control, enable interrupts on attentions */ 2038 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN); 2039 2040 #ifdef notdef 2041 /* Assert GPIO pins for PHY reset */ 2042 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0 | 2043 BGE_MLC_MISCIO_OUT1 | BGE_MLC_MISCIO_OUT2); 2044 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0 | 2045 BGE_MLC_MISCIO_OUTEN1 | BGE_MLC_MISCIO_OUTEN2); 2046 #endif 2047 2048 /* Turn on DMA completion state machine */ 2049 if (!(BGE_IS_5705_PLUS(sc))) 2050 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); 2051 2052 val = BGE_WDMAMODE_ENABLE | BGE_WDMAMODE_ALL_ATTNS; 2053 2054 /* Enable host coalescing bug fix. */ 2055 if (BGE_IS_5755_PLUS(sc)) 2056 val |= BGE_WDMAMODE_STATUS_TAG_FIX; 2057 2058 /* Request larger DMA burst size to get better performance. */ 2059 if (sc->bge_asicrev == BGE_ASICREV_BCM5785) 2060 val |= BGE_WDMAMODE_BURST_ALL_DATA; 2061 2062 /* Turn on write DMA state machine */ 2063 CSR_WRITE_4(sc, BGE_WDMA_MODE, val); 2064 DELAY(40); 2065 2066 /* Turn on read DMA state machine */ 2067 val = BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS; 2068 2069 if (sc->bge_asicrev == BGE_ASICREV_BCM5717) 2070 val |= BGE_RDMAMODE_MULT_DMA_RD_DIS; 2071 2072 if (sc->bge_asicrev == BGE_ASICREV_BCM5784 || 2073 sc->bge_asicrev == BGE_ASICREV_BCM5785 || 2074 sc->bge_asicrev == BGE_ASICREV_BCM57780) 2075 val |= BGE_RDMAMODE_BD_SBD_CRPT_ATTN | 2076 BGE_RDMAMODE_MBUF_RBD_CRPT_ATTN | 2077 BGE_RDMAMODE_MBUF_SBD_CRPT_ATTN; 2078 if (sc->bge_flags & BGE_FLAG_PCIE) 2079 val |= BGE_RDMAMODE_FIFO_LONG_BURST; 2080 if (sc->bge_flags & (BGE_FLAG_TSO | BGE_FLAG_TSO3)) { 2081 val |= BGE_RDMAMODE_TSO4_ENABLE; 2082 if (sc->bge_flags & BGE_FLAG_TSO3 || 2083 sc->bge_asicrev == BGE_ASICREV_BCM5785 || 2084 sc->bge_asicrev == BGE_ASICREV_BCM57780) 2085 val |= BGE_RDMAMODE_TSO6_ENABLE; 2086 } 2087 2088 if (sc->bge_asicrev == BGE_ASICREV_BCM5720) { 2089 val |= CSR_READ_4(sc, BGE_RDMA_MODE) & 2090 BGE_RDMAMODE_H2BNC_VLAN_DET; 2091 /* 2092 * Allow multiple outstanding read requests from 2093 * non-LSO read DMA engine. 2094 */ 2095 val &= ~BGE_RDMAMODE_MULT_DMA_RD_DIS; 2096 } 2097 2098 if (sc->bge_asicrev == BGE_ASICREV_BCM5761 || 2099 sc->bge_asicrev == BGE_ASICREV_BCM5784 || 2100 sc->bge_asicrev == BGE_ASICREV_BCM5785 || 2101 sc->bge_asicrev == BGE_ASICREV_BCM57780 || 2102 BGE_IS_5717_PLUS(sc)) { 2103 dmactl = CSR_READ_4(sc, BGE_RDMA_RSRVCTRL); 2104 /* 2105 * Adjust tx margin to prevent TX data corruption and 2106 * fix internal FIFO overflow. 2107 */ 2108 if (sc->bge_asicrev == BGE_ASICREV_BCM5719 || 2109 sc->bge_asicrev == BGE_ASICREV_BCM5720) { 2110 dmactl &= ~(BGE_RDMA_RSRVCTRL_FIFO_LWM_MASK | 2111 BGE_RDMA_RSRVCTRL_FIFO_HWM_MASK | 2112 BGE_RDMA_RSRVCTRL_TXMRGN_MASK); 2113 dmactl |= BGE_RDMA_RSRVCTRL_FIFO_LWM_1_5K | 2114 BGE_RDMA_RSRVCTRL_FIFO_HWM_1_5K | 2115 BGE_RDMA_RSRVCTRL_TXMRGN_320B; 2116 } 2117 /* 2118 * Enable fix for read DMA FIFO overruns. 2119 * The fix is to limit the number of RX BDs 2120 * the hardware would fetch at a fime. 2121 */ 2122 CSR_WRITE_4(sc, BGE_RDMA_RSRVCTRL, dmactl | 2123 BGE_RDMA_RSRVCTRL_FIFO_OFLW_FIX); 2124 } 2125 2126 if (sc->bge_asicrev == BGE_ASICREV_BCM5719) { 2127 CSR_WRITE_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL, 2128 CSR_READ_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL) | 2129 BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_BD_4K | 2130 BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_LSO_4K); 2131 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5720) { 2132 /* 2133 * Allow 4KB burst length reads for non-LSO frames. 2134 * Enable 512B burst length reads for buffer descriptors. 2135 */ 2136 CSR_WRITE_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL, 2137 CSR_READ_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL) | 2138 BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_BD_512 | 2139 BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_LSO_4K); 2140 } 2141 2142 CSR_WRITE_4(sc, BGE_RDMA_MODE, val); 2143 DELAY(40); 2144 2145 /* Turn on RX data completion state machine */ 2146 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); 2147 2148 /* Turn on RX BD initiator state machine */ 2149 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); 2150 2151 /* Turn on RX data and RX BD initiator state machine */ 2152 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE); 2153 2154 /* Turn on Mbuf cluster free state machine */ 2155 if (!(BGE_IS_5705_PLUS(sc))) 2156 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); 2157 2158 /* Turn on send BD completion state machine */ 2159 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); 2160 2161 /* Turn on send data completion state machine */ 2162 val = BGE_SDCMODE_ENABLE; 2163 if (sc->bge_asicrev == BGE_ASICREV_BCM5761) 2164 val |= BGE_SDCMODE_CDELAY; 2165 CSR_WRITE_4(sc, BGE_SDC_MODE, val); 2166 2167 /* Turn on send data initiator state machine */ 2168 if (sc->bge_flags & (BGE_FLAG_TSO | BGE_FLAG_TSO3)) 2169 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE | 2170 BGE_SDIMODE_HW_LSO_PRE_DMA); 2171 else 2172 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); 2173 2174 /* Turn on send BD initiator state machine */ 2175 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); 2176 2177 /* Turn on send BD selector state machine */ 2178 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); 2179 2180 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF); 2181 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL, 2182 BGE_SDISTATSCTL_ENABLE | BGE_SDISTATSCTL_FASTER); 2183 2184 /* ack/clear link change events */ 2185 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED | 2186 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE | 2187 BGE_MACSTAT_LINK_CHANGED); 2188 CSR_WRITE_4(sc, BGE_MI_STS, 0); 2189 2190 /* 2191 * Enable attention when the link has changed state for 2192 * devices that use auto polling. 2193 */ 2194 if (sc->bge_flags & BGE_FLAG_TBI) { 2195 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK); 2196 } else { 2197 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) { 2198 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode); 2199 DELAY(80); 2200 } 2201 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && 2202 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) 2203 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, 2204 BGE_EVTENB_MI_INTERRUPT); 2205 } 2206 2207 /* 2208 * Clear any pending link state attention. 2209 * Otherwise some link state change events may be lost until attention 2210 * is cleared by bge_intr() -> bge_link_upd() sequence. 2211 * It's not necessary on newer BCM chips - perhaps enabling link 2212 * state change attentions implies clearing pending attention. 2213 */ 2214 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED | 2215 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE | 2216 BGE_MACSTAT_LINK_CHANGED); 2217 2218 /* Enable link state change attentions. */ 2219 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED); 2220 2221 return (0); 2222 } 2223 2224 const struct bge_revision * 2225 bge_lookup_rev(uint32_t chipid) 2226 { 2227 const struct bge_revision *br; 2228 2229 for (br = bge_revisions; br->br_name != NULL; br++) { 2230 if (br->br_chipid == chipid) 2231 return (br); 2232 } 2233 2234 for (br = bge_majorrevs; br->br_name != NULL; br++) { 2235 if (br->br_chipid == BGE_ASICREV(chipid)) 2236 return (br); 2237 } 2238 2239 return (NULL); 2240 } 2241 2242 const struct bge_vendor * 2243 bge_lookup_vendor(uint16_t vid) 2244 { 2245 const struct bge_vendor *v; 2246 2247 for (v = bge_vendors; v->v_name != NULL; v++) 2248 if (v->v_id == vid) 2249 return (v); 2250 2251 panic("%s: unknown vendor %d", __func__, vid); 2252 return (NULL); 2253 } 2254 2255 /* 2256 * Probe for a Broadcom chip. Check the PCI vendor and device IDs 2257 * against our list and return its name if we find a match. 2258 * 2259 * Note that since the Broadcom controller contains VPD support, we 2260 * try to get the device name string from the controller itself instead 2261 * of the compiled-in string. It guarantees we'll always announce the 2262 * right product name. We fall back to the compiled-in string when 2263 * VPD is unavailable or corrupt. 2264 */ 2265 static int 2266 bge_probe(device_t dev) 2267 { 2268 char buf[96]; 2269 char model[64]; 2270 const struct bge_revision *br; 2271 const char *pname; 2272 struct bge_softc *sc = device_get_softc(dev); 2273 const struct bge_type *t = bge_devs; 2274 const struct bge_vendor *v; 2275 uint32_t id; 2276 uint16_t did, vid; 2277 2278 sc->bge_dev = dev; 2279 vid = pci_get_vendor(dev); 2280 did = pci_get_device(dev); 2281 while(t->bge_vid != 0) { 2282 if ((vid == t->bge_vid) && (did == t->bge_did)) { 2283 id = pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >> 2284 BGE_PCIMISCCTL_ASICREV_SHIFT; 2285 if (BGE_ASICREV(id) == BGE_ASICREV_USE_PRODID_REG) { 2286 /* 2287 * Find the ASCI revision. Different chips 2288 * use different registers. 2289 */ 2290 switch (pci_get_device(dev)) { 2291 case BCOM_DEVICEID_BCM5717: 2292 case BCOM_DEVICEID_BCM5718: 2293 case BCOM_DEVICEID_BCM5719: 2294 case BCOM_DEVICEID_BCM5720: 2295 id = pci_read_config(dev, 2296 BGE_PCI_GEN2_PRODID_ASICREV, 4); 2297 break; 2298 case BCOM_DEVICEID_BCM57761: 2299 case BCOM_DEVICEID_BCM57765: 2300 case BCOM_DEVICEID_BCM57781: 2301 case BCOM_DEVICEID_BCM57785: 2302 case BCOM_DEVICEID_BCM57791: 2303 case BCOM_DEVICEID_BCM57795: 2304 id = pci_read_config(dev, 2305 BGE_PCI_GEN15_PRODID_ASICREV, 4); 2306 break; 2307 default: 2308 id = pci_read_config(dev, 2309 BGE_PCI_PRODID_ASICREV, 4); 2310 } 2311 } 2312 br = bge_lookup_rev(id); 2313 v = bge_lookup_vendor(vid); 2314 if (bge_has_eaddr(sc) && 2315 pci_get_vpd_ident(dev, &pname) == 0) 2316 snprintf(model, 64, "%s", pname); 2317 else 2318 snprintf(model, 64, "%s %s", v->v_name, 2319 br != NULL ? br->br_name : 2320 "NetXtreme Ethernet Controller"); 2321 snprintf(buf, 96, "%s, %sASIC rev. %#08x", model, 2322 br != NULL ? "" : "unknown ", id); 2323 device_set_desc_copy(dev, buf); 2324 return (0); 2325 } 2326 t++; 2327 } 2328 2329 return (ENXIO); 2330 } 2331 2332 static void 2333 bge_dma_free(struct bge_softc *sc) 2334 { 2335 int i; 2336 2337 /* Destroy DMA maps for RX buffers. */ 2338 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 2339 if (sc->bge_cdata.bge_rx_std_dmamap[i]) 2340 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag, 2341 sc->bge_cdata.bge_rx_std_dmamap[i]); 2342 } 2343 if (sc->bge_cdata.bge_rx_std_sparemap) 2344 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag, 2345 sc->bge_cdata.bge_rx_std_sparemap); 2346 2347 /* Destroy DMA maps for jumbo RX buffers. */ 2348 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 2349 if (sc->bge_cdata.bge_rx_jumbo_dmamap[i]) 2350 bus_dmamap_destroy(sc->bge_cdata.bge_mtag_jumbo, 2351 sc->bge_cdata.bge_rx_jumbo_dmamap[i]); 2352 } 2353 if (sc->bge_cdata.bge_rx_jumbo_sparemap) 2354 bus_dmamap_destroy(sc->bge_cdata.bge_mtag_jumbo, 2355 sc->bge_cdata.bge_rx_jumbo_sparemap); 2356 2357 /* Destroy DMA maps for TX buffers. */ 2358 for (i = 0; i < BGE_TX_RING_CNT; i++) { 2359 if (sc->bge_cdata.bge_tx_dmamap[i]) 2360 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag, 2361 sc->bge_cdata.bge_tx_dmamap[i]); 2362 } 2363 2364 if (sc->bge_cdata.bge_rx_mtag) 2365 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag); 2366 if (sc->bge_cdata.bge_mtag_jumbo) 2367 bus_dma_tag_destroy(sc->bge_cdata.bge_mtag_jumbo); 2368 if (sc->bge_cdata.bge_tx_mtag) 2369 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag); 2370 2371 2372 /* Destroy standard RX ring. */ 2373 if (sc->bge_cdata.bge_rx_std_ring_map) 2374 bus_dmamap_unload(sc->bge_cdata.bge_rx_std_ring_tag, 2375 sc->bge_cdata.bge_rx_std_ring_map); 2376 if (sc->bge_cdata.bge_rx_std_ring_map && sc->bge_ldata.bge_rx_std_ring) 2377 bus_dmamem_free(sc->bge_cdata.bge_rx_std_ring_tag, 2378 sc->bge_ldata.bge_rx_std_ring, 2379 sc->bge_cdata.bge_rx_std_ring_map); 2380 2381 if (sc->bge_cdata.bge_rx_std_ring_tag) 2382 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_std_ring_tag); 2383 2384 /* Destroy jumbo RX ring. */ 2385 if (sc->bge_cdata.bge_rx_jumbo_ring_map) 2386 bus_dmamap_unload(sc->bge_cdata.bge_rx_jumbo_ring_tag, 2387 sc->bge_cdata.bge_rx_jumbo_ring_map); 2388 2389 if (sc->bge_cdata.bge_rx_jumbo_ring_map && 2390 sc->bge_ldata.bge_rx_jumbo_ring) 2391 bus_dmamem_free(sc->bge_cdata.bge_rx_jumbo_ring_tag, 2392 sc->bge_ldata.bge_rx_jumbo_ring, 2393 sc->bge_cdata.bge_rx_jumbo_ring_map); 2394 2395 if (sc->bge_cdata.bge_rx_jumbo_ring_tag) 2396 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_jumbo_ring_tag); 2397 2398 /* Destroy RX return ring. */ 2399 if (sc->bge_cdata.bge_rx_return_ring_map) 2400 bus_dmamap_unload(sc->bge_cdata.bge_rx_return_ring_tag, 2401 sc->bge_cdata.bge_rx_return_ring_map); 2402 2403 if (sc->bge_cdata.bge_rx_return_ring_map && 2404 sc->bge_ldata.bge_rx_return_ring) 2405 bus_dmamem_free(sc->bge_cdata.bge_rx_return_ring_tag, 2406 sc->bge_ldata.bge_rx_return_ring, 2407 sc->bge_cdata.bge_rx_return_ring_map); 2408 2409 if (sc->bge_cdata.bge_rx_return_ring_tag) 2410 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_return_ring_tag); 2411 2412 /* Destroy TX ring. */ 2413 if (sc->bge_cdata.bge_tx_ring_map) 2414 bus_dmamap_unload(sc->bge_cdata.bge_tx_ring_tag, 2415 sc->bge_cdata.bge_tx_ring_map); 2416 2417 if (sc->bge_cdata.bge_tx_ring_map && sc->bge_ldata.bge_tx_ring) 2418 bus_dmamem_free(sc->bge_cdata.bge_tx_ring_tag, 2419 sc->bge_ldata.bge_tx_ring, 2420 sc->bge_cdata.bge_tx_ring_map); 2421 2422 if (sc->bge_cdata.bge_tx_ring_tag) 2423 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_ring_tag); 2424 2425 /* Destroy status block. */ 2426 if (sc->bge_cdata.bge_status_map) 2427 bus_dmamap_unload(sc->bge_cdata.bge_status_tag, 2428 sc->bge_cdata.bge_status_map); 2429 2430 if (sc->bge_cdata.bge_status_map && sc->bge_ldata.bge_status_block) 2431 bus_dmamem_free(sc->bge_cdata.bge_status_tag, 2432 sc->bge_ldata.bge_status_block, 2433 sc->bge_cdata.bge_status_map); 2434 2435 if (sc->bge_cdata.bge_status_tag) 2436 bus_dma_tag_destroy(sc->bge_cdata.bge_status_tag); 2437 2438 /* Destroy statistics block. */ 2439 if (sc->bge_cdata.bge_stats_map) 2440 bus_dmamap_unload(sc->bge_cdata.bge_stats_tag, 2441 sc->bge_cdata.bge_stats_map); 2442 2443 if (sc->bge_cdata.bge_stats_map && sc->bge_ldata.bge_stats) 2444 bus_dmamem_free(sc->bge_cdata.bge_stats_tag, 2445 sc->bge_ldata.bge_stats, 2446 sc->bge_cdata.bge_stats_map); 2447 2448 if (sc->bge_cdata.bge_stats_tag) 2449 bus_dma_tag_destroy(sc->bge_cdata.bge_stats_tag); 2450 2451 if (sc->bge_cdata.bge_buffer_tag) 2452 bus_dma_tag_destroy(sc->bge_cdata.bge_buffer_tag); 2453 2454 /* Destroy the parent tag. */ 2455 if (sc->bge_cdata.bge_parent_tag) 2456 bus_dma_tag_destroy(sc->bge_cdata.bge_parent_tag); 2457 } 2458 2459 static int 2460 bge_dma_ring_alloc(struct bge_softc *sc, bus_size_t alignment, 2461 bus_size_t maxsize, bus_dma_tag_t *tag, uint8_t **ring, bus_dmamap_t *map, 2462 bus_addr_t *paddr, const char *msg) 2463 { 2464 struct bge_dmamap_arg ctx; 2465 int error; 2466 2467 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 2468 alignment, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 2469 NULL, maxsize, 1, maxsize, 0, NULL, NULL, tag); 2470 if (error != 0) { 2471 device_printf(sc->bge_dev, 2472 "could not create %s dma tag\n", msg); 2473 return (ENOMEM); 2474 } 2475 /* Allocate DMA'able memory for ring. */ 2476 error = bus_dmamem_alloc(*tag, (void **)ring, 2477 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, map); 2478 if (error != 0) { 2479 device_printf(sc->bge_dev, 2480 "could not allocate DMA'able memory for %s\n", msg); 2481 return (ENOMEM); 2482 } 2483 /* Load the address of the ring. */ 2484 ctx.bge_busaddr = 0; 2485 error = bus_dmamap_load(*tag, *map, *ring, maxsize, bge_dma_map_addr, 2486 &ctx, BUS_DMA_NOWAIT); 2487 if (error != 0) { 2488 device_printf(sc->bge_dev, 2489 "could not load DMA'able memory for %s\n", msg); 2490 return (ENOMEM); 2491 } 2492 *paddr = ctx.bge_busaddr; 2493 return (0); 2494 } 2495 2496 static int 2497 bge_dma_alloc(struct bge_softc *sc) 2498 { 2499 bus_addr_t lowaddr; 2500 bus_size_t rxmaxsegsz, sbsz, txsegsz, txmaxsegsz; 2501 int i, error; 2502 2503 lowaddr = BUS_SPACE_MAXADDR; 2504 if ((sc->bge_flags & BGE_FLAG_40BIT_BUG) != 0) 2505 lowaddr = BGE_DMA_MAXADDR; 2506 /* 2507 * Allocate the parent bus DMA tag appropriate for PCI. 2508 */ 2509 error = bus_dma_tag_create(bus_get_dma_tag(sc->bge_dev), 2510 1, 0, lowaddr, BUS_SPACE_MAXADDR, NULL, 2511 NULL, BUS_SPACE_MAXSIZE_32BIT, 0, BUS_SPACE_MAXSIZE_32BIT, 2512 0, NULL, NULL, &sc->bge_cdata.bge_parent_tag); 2513 if (error != 0) { 2514 device_printf(sc->bge_dev, 2515 "could not allocate parent dma tag\n"); 2516 return (ENOMEM); 2517 } 2518 2519 /* Create tag for standard RX ring. */ 2520 error = bge_dma_ring_alloc(sc, PAGE_SIZE, BGE_STD_RX_RING_SZ, 2521 &sc->bge_cdata.bge_rx_std_ring_tag, 2522 (uint8_t **)&sc->bge_ldata.bge_rx_std_ring, 2523 &sc->bge_cdata.bge_rx_std_ring_map, 2524 &sc->bge_ldata.bge_rx_std_ring_paddr, "RX ring"); 2525 if (error) 2526 return (error); 2527 2528 /* Create tag for RX return ring. */ 2529 error = bge_dma_ring_alloc(sc, PAGE_SIZE, BGE_RX_RTN_RING_SZ(sc), 2530 &sc->bge_cdata.bge_rx_return_ring_tag, 2531 (uint8_t **)&sc->bge_ldata.bge_rx_return_ring, 2532 &sc->bge_cdata.bge_rx_return_ring_map, 2533 &sc->bge_ldata.bge_rx_return_ring_paddr, "RX return ring"); 2534 if (error) 2535 return (error); 2536 2537 /* Create tag for TX ring. */ 2538 error = bge_dma_ring_alloc(sc, PAGE_SIZE, BGE_TX_RING_SZ, 2539 &sc->bge_cdata.bge_tx_ring_tag, 2540 (uint8_t **)&sc->bge_ldata.bge_tx_ring, 2541 &sc->bge_cdata.bge_tx_ring_map, 2542 &sc->bge_ldata.bge_tx_ring_paddr, "TX ring"); 2543 if (error) 2544 return (error); 2545 2546 /* 2547 * Create tag for status block. 2548 * Because we only use single Tx/Rx/Rx return ring, use 2549 * minimum status block size except BCM5700 AX/BX which 2550 * seems to want to see full status block size regardless 2551 * of configured number of ring. 2552 */ 2553 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && 2554 sc->bge_chipid != BGE_CHIPID_BCM5700_C0) 2555 sbsz = BGE_STATUS_BLK_SZ; 2556 else 2557 sbsz = 32; 2558 error = bge_dma_ring_alloc(sc, PAGE_SIZE, sbsz, 2559 &sc->bge_cdata.bge_status_tag, 2560 (uint8_t **)&sc->bge_ldata.bge_status_block, 2561 &sc->bge_cdata.bge_status_map, 2562 &sc->bge_ldata.bge_status_block_paddr, "status block"); 2563 if (error) 2564 return (error); 2565 2566 /* Create tag for statistics block. */ 2567 error = bge_dma_ring_alloc(sc, PAGE_SIZE, BGE_STATS_SZ, 2568 &sc->bge_cdata.bge_stats_tag, 2569 (uint8_t **)&sc->bge_ldata.bge_stats, 2570 &sc->bge_cdata.bge_stats_map, 2571 &sc->bge_ldata.bge_stats_paddr, "statistics block"); 2572 if (error) 2573 return (error); 2574 2575 /* Create tag for jumbo RX ring. */ 2576 if (BGE_IS_JUMBO_CAPABLE(sc)) { 2577 error = bge_dma_ring_alloc(sc, PAGE_SIZE, BGE_JUMBO_RX_RING_SZ, 2578 &sc->bge_cdata.bge_rx_jumbo_ring_tag, 2579 (uint8_t **)&sc->bge_ldata.bge_rx_jumbo_ring, 2580 &sc->bge_cdata.bge_rx_jumbo_ring_map, 2581 &sc->bge_ldata.bge_rx_jumbo_ring_paddr, "jumbo RX ring"); 2582 if (error) 2583 return (error); 2584 } 2585 2586 /* Create parent tag for buffers. */ 2587 if ((sc->bge_flags & BGE_FLAG_4G_BNDRY_BUG) != 0) { 2588 /* 2589 * XXX 2590 * watchdog timeout issue was observed on BCM5704 which 2591 * lives behind PCI-X bridge(e.g AMD 8131 PCI-X bridge). 2592 * Both limiting DMA address space to 32bits and flushing 2593 * mailbox write seem to address the issue. 2594 */ 2595 if (sc->bge_pcixcap != 0) 2596 lowaddr = BUS_SPACE_MAXADDR_32BIT; 2597 } 2598 error = bus_dma_tag_create(bus_get_dma_tag(sc->bge_dev), 1, 0, lowaddr, 2599 BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 0, 2600 BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, 2601 &sc->bge_cdata.bge_buffer_tag); 2602 if (error != 0) { 2603 device_printf(sc->bge_dev, 2604 "could not allocate buffer dma tag\n"); 2605 return (ENOMEM); 2606 } 2607 /* Create tag for Tx mbufs. */ 2608 if (sc->bge_flags & (BGE_FLAG_TSO | BGE_FLAG_TSO3)) { 2609 txsegsz = BGE_TSOSEG_SZ; 2610 txmaxsegsz = 65535 + sizeof(struct ether_vlan_header); 2611 } else { 2612 txsegsz = MCLBYTES; 2613 txmaxsegsz = MCLBYTES * BGE_NSEG_NEW; 2614 } 2615 error = bus_dma_tag_create(sc->bge_cdata.bge_buffer_tag, 1, 2616 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, 2617 txmaxsegsz, BGE_NSEG_NEW, txsegsz, 0, NULL, NULL, 2618 &sc->bge_cdata.bge_tx_mtag); 2619 2620 if (error) { 2621 device_printf(sc->bge_dev, "could not allocate TX dma tag\n"); 2622 return (ENOMEM); 2623 } 2624 2625 /* Create tag for Rx mbufs. */ 2626 if (sc->bge_flags & BGE_FLAG_JUMBO_STD) 2627 rxmaxsegsz = MJUM9BYTES; 2628 else 2629 rxmaxsegsz = MCLBYTES; 2630 error = bus_dma_tag_create(sc->bge_cdata.bge_buffer_tag, 1, 0, 2631 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, rxmaxsegsz, 1, 2632 rxmaxsegsz, 0, NULL, NULL, &sc->bge_cdata.bge_rx_mtag); 2633 2634 if (error) { 2635 device_printf(sc->bge_dev, "could not allocate RX dma tag\n"); 2636 return (ENOMEM); 2637 } 2638 2639 /* Create DMA maps for RX buffers. */ 2640 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag, 0, 2641 &sc->bge_cdata.bge_rx_std_sparemap); 2642 if (error) { 2643 device_printf(sc->bge_dev, 2644 "can't create spare DMA map for RX\n"); 2645 return (ENOMEM); 2646 } 2647 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 2648 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag, 0, 2649 &sc->bge_cdata.bge_rx_std_dmamap[i]); 2650 if (error) { 2651 device_printf(sc->bge_dev, 2652 "can't create DMA map for RX\n"); 2653 return (ENOMEM); 2654 } 2655 } 2656 2657 /* Create DMA maps for TX buffers. */ 2658 for (i = 0; i < BGE_TX_RING_CNT; i++) { 2659 error = bus_dmamap_create(sc->bge_cdata.bge_tx_mtag, 0, 2660 &sc->bge_cdata.bge_tx_dmamap[i]); 2661 if (error) { 2662 device_printf(sc->bge_dev, 2663 "can't create DMA map for TX\n"); 2664 return (ENOMEM); 2665 } 2666 } 2667 2668 /* Create tags for jumbo RX buffers. */ 2669 if (BGE_IS_JUMBO_CAPABLE(sc)) { 2670 error = bus_dma_tag_create(sc->bge_cdata.bge_buffer_tag, 2671 1, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 2672 NULL, MJUM9BYTES, BGE_NSEG_JUMBO, PAGE_SIZE, 2673 0, NULL, NULL, &sc->bge_cdata.bge_mtag_jumbo); 2674 if (error) { 2675 device_printf(sc->bge_dev, 2676 "could not allocate jumbo dma tag\n"); 2677 return (ENOMEM); 2678 } 2679 /* Create DMA maps for jumbo RX buffers. */ 2680 error = bus_dmamap_create(sc->bge_cdata.bge_mtag_jumbo, 2681 0, &sc->bge_cdata.bge_rx_jumbo_sparemap); 2682 if (error) { 2683 device_printf(sc->bge_dev, 2684 "can't create spare DMA map for jumbo RX\n"); 2685 return (ENOMEM); 2686 } 2687 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 2688 error = bus_dmamap_create(sc->bge_cdata.bge_mtag_jumbo, 2689 0, &sc->bge_cdata.bge_rx_jumbo_dmamap[i]); 2690 if (error) { 2691 device_printf(sc->bge_dev, 2692 "can't create DMA map for jumbo RX\n"); 2693 return (ENOMEM); 2694 } 2695 } 2696 } 2697 2698 return (0); 2699 } 2700 2701 /* 2702 * Return true if this device has more than one port. 2703 */ 2704 static int 2705 bge_has_multiple_ports(struct bge_softc *sc) 2706 { 2707 device_t dev = sc->bge_dev; 2708 u_int b, d, f, fscan, s; 2709 2710 d = pci_get_domain(dev); 2711 b = pci_get_bus(dev); 2712 s = pci_get_slot(dev); 2713 f = pci_get_function(dev); 2714 for (fscan = 0; fscan <= PCI_FUNCMAX; fscan++) 2715 if (fscan != f && pci_find_dbsf(d, b, s, fscan) != NULL) 2716 return (1); 2717 return (0); 2718 } 2719 2720 /* 2721 * Return true if MSI can be used with this device. 2722 */ 2723 static int 2724 bge_can_use_msi(struct bge_softc *sc) 2725 { 2726 int can_use_msi = 0; 2727 2728 if (sc->bge_msi == 0) 2729 return (0); 2730 2731 /* Disable MSI for polling(4). */ 2732 #ifdef DEVICE_POLLING 2733 return (0); 2734 #endif 2735 switch (sc->bge_asicrev) { 2736 case BGE_ASICREV_BCM5714_A0: 2737 case BGE_ASICREV_BCM5714: 2738 /* 2739 * Apparently, MSI doesn't work when these chips are 2740 * configured in single-port mode. 2741 */ 2742 if (bge_has_multiple_ports(sc)) 2743 can_use_msi = 1; 2744 break; 2745 case BGE_ASICREV_BCM5750: 2746 if (sc->bge_chiprev != BGE_CHIPREV_5750_AX && 2747 sc->bge_chiprev != BGE_CHIPREV_5750_BX) 2748 can_use_msi = 1; 2749 break; 2750 default: 2751 if (BGE_IS_575X_PLUS(sc)) 2752 can_use_msi = 1; 2753 } 2754 return (can_use_msi); 2755 } 2756 2757 static int 2758 bge_mbox_reorder(struct bge_softc *sc) 2759 { 2760 /* Lists of PCI bridges that are known to reorder mailbox writes. */ 2761 static const struct mbox_reorder { 2762 const uint16_t vendor; 2763 const uint16_t device; 2764 const char *desc; 2765 } const mbox_reorder_lists[] = { 2766 { 0x1022, 0x7450, "AMD-8131 PCI-X Bridge" }, 2767 }; 2768 devclass_t pci, pcib; 2769 device_t bus, dev; 2770 int count, i; 2771 2772 count = sizeof(mbox_reorder_lists) / sizeof(mbox_reorder_lists[0]); 2773 pci = devclass_find("pci"); 2774 pcib = devclass_find("pcib"); 2775 dev = sc->bge_dev; 2776 bus = device_get_parent(dev); 2777 for (;;) { 2778 dev = device_get_parent(bus); 2779 bus = device_get_parent(dev); 2780 device_printf(sc->bge_dev, "dev : %s%d, bus : %s%d\n", 2781 device_get_name(dev), device_get_unit(dev), 2782 device_get_name(bus), device_get_unit(bus)); 2783 if (device_get_devclass(dev) != pcib) 2784 break; 2785 for (i = 0; i < count; i++) { 2786 device_printf(sc->bge_dev, 2787 "probing dev : %s%d, vendor : 0x%04x " 2788 "device : 0x%04x\n", 2789 device_get_name(dev), device_get_unit(dev), 2790 pci_get_vendor(dev), pci_get_device(dev)); 2791 if (pci_get_vendor(dev) == 2792 mbox_reorder_lists[i].vendor && 2793 pci_get_device(dev) == 2794 mbox_reorder_lists[i].device) { 2795 device_printf(sc->bge_dev, 2796 "enabling MBOX workaround for %s\n", 2797 mbox_reorder_lists[i].desc); 2798 return (1); 2799 } 2800 } 2801 if (device_get_devclass(bus) != pci) 2802 break; 2803 } 2804 return (0); 2805 } 2806 2807 static void 2808 bge_devinfo(struct bge_softc *sc) 2809 { 2810 uint32_t cfg, clk; 2811 2812 device_printf(sc->bge_dev, 2813 "CHIP ID 0x%08x; ASIC REV 0x%02x; CHIP REV 0x%02x; ", 2814 sc->bge_chipid, sc->bge_asicrev, sc->bge_chiprev); 2815 if (sc->bge_flags & BGE_FLAG_PCIE) 2816 printf("PCI-E\n"); 2817 else if (sc->bge_flags & BGE_FLAG_PCIX) { 2818 printf("PCI-X "); 2819 cfg = CSR_READ_4(sc, BGE_MISC_CFG) & BGE_MISCCFG_BOARD_ID_MASK; 2820 if (cfg == BGE_MISCCFG_BOARD_ID_5704CIOBE) 2821 clk = 133; 2822 else { 2823 clk = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1F; 2824 switch (clk) { 2825 case 0: 2826 clk = 33; 2827 break; 2828 case 2: 2829 clk = 50; 2830 break; 2831 case 4: 2832 clk = 66; 2833 break; 2834 case 6: 2835 clk = 100; 2836 break; 2837 case 7: 2838 clk = 133; 2839 break; 2840 } 2841 } 2842 printf("%u MHz\n", clk); 2843 } else { 2844 if (sc->bge_pcixcap != 0) 2845 printf("PCI on PCI-X "); 2846 else 2847 printf("PCI "); 2848 cfg = pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4); 2849 if (cfg & BGE_PCISTATE_PCI_BUSSPEED) 2850 clk = 66; 2851 else 2852 clk = 33; 2853 if (cfg & BGE_PCISTATE_32BIT_BUS) 2854 printf("%u MHz; 32bit\n", clk); 2855 else 2856 printf("%u MHz; 64bit\n", clk); 2857 } 2858 } 2859 2860 static int 2861 bge_attach(device_t dev) 2862 { 2863 struct ifnet *ifp; 2864 struct bge_softc *sc; 2865 uint32_t hwcfg = 0, misccfg; 2866 u_char eaddr[ETHER_ADDR_LEN]; 2867 int capmask, error, f, msicount, phy_addr, reg, rid, trys; 2868 2869 sc = device_get_softc(dev); 2870 sc->bge_dev = dev; 2871 2872 bge_add_sysctls(sc); 2873 2874 TASK_INIT(&sc->bge_intr_task, 0, bge_intr_task, sc); 2875 2876 /* 2877 * Map control/status registers. 2878 */ 2879 pci_enable_busmaster(dev); 2880 2881 rid = PCIR_BAR(0); 2882 sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 2883 RF_ACTIVE); 2884 2885 if (sc->bge_res == NULL) { 2886 device_printf (sc->bge_dev, "couldn't map memory\n"); 2887 error = ENXIO; 2888 goto fail; 2889 } 2890 2891 /* Save various chip information. */ 2892 sc->bge_chipid = 2893 pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >> 2894 BGE_PCIMISCCTL_ASICREV_SHIFT; 2895 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_USE_PRODID_REG) { 2896 /* 2897 * Find the ASCI revision. Different chips use different 2898 * registers. 2899 */ 2900 switch (pci_get_device(dev)) { 2901 case BCOM_DEVICEID_BCM5717: 2902 case BCOM_DEVICEID_BCM5718: 2903 case BCOM_DEVICEID_BCM5719: 2904 case BCOM_DEVICEID_BCM5720: 2905 sc->bge_chipid = pci_read_config(dev, 2906 BGE_PCI_GEN2_PRODID_ASICREV, 4); 2907 break; 2908 case BCOM_DEVICEID_BCM57761: 2909 case BCOM_DEVICEID_BCM57765: 2910 case BCOM_DEVICEID_BCM57781: 2911 case BCOM_DEVICEID_BCM57785: 2912 case BCOM_DEVICEID_BCM57791: 2913 case BCOM_DEVICEID_BCM57795: 2914 sc->bge_chipid = pci_read_config(dev, 2915 BGE_PCI_GEN15_PRODID_ASICREV, 4); 2916 break; 2917 default: 2918 sc->bge_chipid = pci_read_config(dev, 2919 BGE_PCI_PRODID_ASICREV, 4); 2920 } 2921 } 2922 sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid); 2923 sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid); 2924 2925 /* Set default PHY address. */ 2926 phy_addr = 1; 2927 /* 2928 * PHY address mapping for various devices. 2929 * 2930 * | F0 Cu | F0 Sr | F1 Cu | F1 Sr | 2931 * ---------+-------+-------+-------+-------+ 2932 * BCM57XX | 1 | X | X | X | 2933 * BCM5704 | 1 | X | 1 | X | 2934 * BCM5717 | 1 | 8 | 2 | 9 | 2935 * BCM5719 | 1 | 8 | 2 | 9 | 2936 * BCM5720 | 1 | 8 | 2 | 9 | 2937 * 2938 * Other addresses may respond but they are not 2939 * IEEE compliant PHYs and should be ignored. 2940 */ 2941 if (sc->bge_asicrev == BGE_ASICREV_BCM5717 || 2942 sc->bge_asicrev == BGE_ASICREV_BCM5719 || 2943 sc->bge_asicrev == BGE_ASICREV_BCM5720) { 2944 f = pci_get_function(dev); 2945 if (sc->bge_chipid == BGE_CHIPID_BCM5717_A0) { 2946 if (CSR_READ_4(sc, BGE_SGDIG_STS) & 2947 BGE_SGDIGSTS_IS_SERDES) 2948 phy_addr = f + 8; 2949 else 2950 phy_addr = f + 1; 2951 } else { 2952 if (CSR_READ_4(sc, BGE_CPMU_PHY_STRAP) & 2953 BGE_CPMU_PHY_STRAP_IS_SERDES) 2954 phy_addr = f + 8; 2955 else 2956 phy_addr = f + 1; 2957 } 2958 } 2959 2960 /* 2961 * Don't enable Ethernet@WireSpeed for the 5700, 5906, or the 2962 * 5705 A0 and A1 chips. 2963 */ 2964 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 || 2965 (sc->bge_asicrev == BGE_ASICREV_BCM5705 && 2966 (sc->bge_chipid != BGE_CHIPID_BCM5705_A0 && 2967 sc->bge_chipid != BGE_CHIPID_BCM5705_A1)) || 2968 sc->bge_asicrev == BGE_ASICREV_BCM5906) 2969 sc->bge_phy_flags |= BGE_PHY_NO_WIRESPEED; 2970 2971 if (bge_has_eaddr(sc)) 2972 sc->bge_flags |= BGE_FLAG_EADDR; 2973 2974 /* Save chipset family. */ 2975 switch (sc->bge_asicrev) { 2976 case BGE_ASICREV_BCM5717: 2977 case BGE_ASICREV_BCM5719: 2978 case BGE_ASICREV_BCM5720: 2979 case BGE_ASICREV_BCM57765: 2980 sc->bge_flags |= BGE_FLAG_5717_PLUS | BGE_FLAG_5755_PLUS | 2981 BGE_FLAG_575X_PLUS | BGE_FLAG_5705_PLUS | BGE_FLAG_JUMBO | 2982 BGE_FLAG_JUMBO_FRAME; 2983 if (sc->bge_asicrev == BGE_ASICREV_BCM5719 && 2984 sc->bge_chipid == BGE_CHIPID_BCM5719_A0) { 2985 /* Jumbo frame on BCM5719 A0 does not work. */ 2986 sc->bge_flags &= ~BGE_FLAG_JUMBO; 2987 } 2988 break; 2989 case BGE_ASICREV_BCM5755: 2990 case BGE_ASICREV_BCM5761: 2991 case BGE_ASICREV_BCM5784: 2992 case BGE_ASICREV_BCM5785: 2993 case BGE_ASICREV_BCM5787: 2994 case BGE_ASICREV_BCM57780: 2995 sc->bge_flags |= BGE_FLAG_5755_PLUS | BGE_FLAG_575X_PLUS | 2996 BGE_FLAG_5705_PLUS; 2997 break; 2998 case BGE_ASICREV_BCM5700: 2999 case BGE_ASICREV_BCM5701: 3000 case BGE_ASICREV_BCM5703: 3001 case BGE_ASICREV_BCM5704: 3002 sc->bge_flags |= BGE_FLAG_5700_FAMILY | BGE_FLAG_JUMBO; 3003 break; 3004 case BGE_ASICREV_BCM5714_A0: 3005 case BGE_ASICREV_BCM5780: 3006 case BGE_ASICREV_BCM5714: 3007 sc->bge_flags |= BGE_FLAG_5714_FAMILY | BGE_FLAG_JUMBO_STD; 3008 /* FALLTHROUGH */ 3009 case BGE_ASICREV_BCM5750: 3010 case BGE_ASICREV_BCM5752: 3011 case BGE_ASICREV_BCM5906: 3012 sc->bge_flags |= BGE_FLAG_575X_PLUS; 3013 /* FALLTHROUGH */ 3014 case BGE_ASICREV_BCM5705: 3015 sc->bge_flags |= BGE_FLAG_5705_PLUS; 3016 break; 3017 } 3018 3019 /* Set various PHY bug flags. */ 3020 if (sc->bge_chipid == BGE_CHIPID_BCM5701_A0 || 3021 sc->bge_chipid == BGE_CHIPID_BCM5701_B0) 3022 sc->bge_phy_flags |= BGE_PHY_CRC_BUG; 3023 if (sc->bge_chiprev == BGE_CHIPREV_5703_AX || 3024 sc->bge_chiprev == BGE_CHIPREV_5704_AX) 3025 sc->bge_phy_flags |= BGE_PHY_ADC_BUG; 3026 if (sc->bge_chipid == BGE_CHIPID_BCM5704_A0) 3027 sc->bge_phy_flags |= BGE_PHY_5704_A0_BUG; 3028 if (pci_get_subvendor(dev) == DELL_VENDORID) 3029 sc->bge_phy_flags |= BGE_PHY_NO_3LED; 3030 if ((BGE_IS_5705_PLUS(sc)) && 3031 sc->bge_asicrev != BGE_ASICREV_BCM5906 && 3032 sc->bge_asicrev != BGE_ASICREV_BCM5717 && 3033 sc->bge_asicrev != BGE_ASICREV_BCM5719 && 3034 sc->bge_asicrev != BGE_ASICREV_BCM5720 && 3035 sc->bge_asicrev != BGE_ASICREV_BCM5785 && 3036 sc->bge_asicrev != BGE_ASICREV_BCM57765 && 3037 sc->bge_asicrev != BGE_ASICREV_BCM57780) { 3038 if (sc->bge_asicrev == BGE_ASICREV_BCM5755 || 3039 sc->bge_asicrev == BGE_ASICREV_BCM5761 || 3040 sc->bge_asicrev == BGE_ASICREV_BCM5784 || 3041 sc->bge_asicrev == BGE_ASICREV_BCM5787) { 3042 if (pci_get_device(dev) != BCOM_DEVICEID_BCM5722 && 3043 pci_get_device(dev) != BCOM_DEVICEID_BCM5756) 3044 sc->bge_phy_flags |= BGE_PHY_JITTER_BUG; 3045 if (pci_get_device(dev) == BCOM_DEVICEID_BCM5755M) 3046 sc->bge_phy_flags |= BGE_PHY_ADJUST_TRIM; 3047 } else 3048 sc->bge_phy_flags |= BGE_PHY_BER_BUG; 3049 } 3050 3051 /* Identify the chips that use an CPMU. */ 3052 if (BGE_IS_5717_PLUS(sc) || 3053 sc->bge_asicrev == BGE_ASICREV_BCM5784 || 3054 sc->bge_asicrev == BGE_ASICREV_BCM5761 || 3055 sc->bge_asicrev == BGE_ASICREV_BCM5785 || 3056 sc->bge_asicrev == BGE_ASICREV_BCM57780) 3057 sc->bge_flags |= BGE_FLAG_CPMU_PRESENT; 3058 if ((sc->bge_flags & BGE_FLAG_CPMU_PRESENT) != 0) 3059 sc->bge_mi_mode = BGE_MIMODE_500KHZ_CONST; 3060 else 3061 sc->bge_mi_mode = BGE_MIMODE_BASE; 3062 /* Enable auto polling for BCM570[0-5]. */ 3063 if (BGE_IS_5700_FAMILY(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5705) 3064 sc->bge_mi_mode |= BGE_MIMODE_AUTOPOLL; 3065 3066 /* 3067 * All Broadcom controllers have 4GB boundary DMA bug. 3068 * Whenever an address crosses a multiple of the 4GB boundary 3069 * (including 4GB, 8Gb, 12Gb, etc.) and makes the transition 3070 * from 0xX_FFFF_FFFF to 0x(X+1)_0000_0000 an internal DMA 3071 * state machine will lockup and cause the device to hang. 3072 */ 3073 sc->bge_flags |= BGE_FLAG_4G_BNDRY_BUG; 3074 3075 /* BCM5755 or higher and BCM5906 have short DMA bug. */ 3076 if (BGE_IS_5755_PLUS(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5906) 3077 sc->bge_flags |= BGE_FLAG_SHORT_DMA_BUG; 3078 3079 /* 3080 * BCM5719 cannot handle DMA requests for DMA segments that 3081 * have larger than 4KB in size. However the maximum DMA 3082 * segment size created in DMA tag is 4KB for TSO, so we 3083 * wouldn't encounter the issue here. 3084 */ 3085 if (sc->bge_asicrev == BGE_ASICREV_BCM5719) 3086 sc->bge_flags |= BGE_FLAG_4K_RDMA_BUG; 3087 3088 misccfg = CSR_READ_4(sc, BGE_MISC_CFG) & BGE_MISCCFG_BOARD_ID_MASK; 3089 if (sc->bge_asicrev == BGE_ASICREV_BCM5705) { 3090 if (misccfg == BGE_MISCCFG_BOARD_ID_5788 || 3091 misccfg == BGE_MISCCFG_BOARD_ID_5788M) 3092 sc->bge_flags |= BGE_FLAG_5788; 3093 } 3094 3095 capmask = BMSR_DEFCAPMASK; 3096 if ((sc->bge_asicrev == BGE_ASICREV_BCM5703 && 3097 (misccfg == 0x4000 || misccfg == 0x8000)) || 3098 (sc->bge_asicrev == BGE_ASICREV_BCM5705 && 3099 pci_get_vendor(dev) == BCOM_VENDORID && 3100 (pci_get_device(dev) == BCOM_DEVICEID_BCM5901 || 3101 pci_get_device(dev) == BCOM_DEVICEID_BCM5901A2 || 3102 pci_get_device(dev) == BCOM_DEVICEID_BCM5705F)) || 3103 (pci_get_vendor(dev) == BCOM_VENDORID && 3104 (pci_get_device(dev) == BCOM_DEVICEID_BCM5751F || 3105 pci_get_device(dev) == BCOM_DEVICEID_BCM5753F || 3106 pci_get_device(dev) == BCOM_DEVICEID_BCM5787F)) || 3107 pci_get_device(dev) == BCOM_DEVICEID_BCM57790 || 3108 sc->bge_asicrev == BGE_ASICREV_BCM5906) { 3109 /* These chips are 10/100 only. */ 3110 capmask &= ~BMSR_EXTSTAT; 3111 } 3112 3113 /* 3114 * Some controllers seem to require a special firmware to use 3115 * TSO. But the firmware is not available to FreeBSD and Linux 3116 * claims that the TSO performed by the firmware is slower than 3117 * hardware based TSO. Moreover the firmware based TSO has one 3118 * known bug which can't handle TSO if ethernet header + IP/TCP 3119 * header is greater than 80 bytes. The workaround for the TSO 3120 * bug exist but it seems it's too expensive than not using 3121 * TSO at all. Some hardwares also have the TSO bug so limit 3122 * the TSO to the controllers that are not affected TSO issues 3123 * (e.g. 5755 or higher). 3124 */ 3125 if (BGE_IS_5717_PLUS(sc)) { 3126 /* BCM5717 requires different TSO configuration. */ 3127 sc->bge_flags |= BGE_FLAG_TSO3; 3128 if (sc->bge_asicrev == BGE_ASICREV_BCM5719 && 3129 sc->bge_chipid == BGE_CHIPID_BCM5719_A0) { 3130 /* TSO on BCM5719 A0 does not work. */ 3131 sc->bge_flags &= ~BGE_FLAG_TSO3; 3132 } 3133 } else if (BGE_IS_5755_PLUS(sc)) { 3134 /* 3135 * BCM5754 and BCM5787 shares the same ASIC id so 3136 * explicit device id check is required. 3137 * Due to unknown reason TSO does not work on BCM5755M. 3138 */ 3139 if (pci_get_device(dev) != BCOM_DEVICEID_BCM5754 && 3140 pci_get_device(dev) != BCOM_DEVICEID_BCM5754M && 3141 pci_get_device(dev) != BCOM_DEVICEID_BCM5755M) 3142 sc->bge_flags |= BGE_FLAG_TSO; 3143 } 3144 3145 /* 3146 * Check if this is a PCI-X or PCI Express device. 3147 */ 3148 if (pci_find_cap(dev, PCIY_EXPRESS, ®) == 0) { 3149 /* 3150 * Found a PCI Express capabilities register, this 3151 * must be a PCI Express device. 3152 */ 3153 sc->bge_flags |= BGE_FLAG_PCIE; 3154 sc->bge_expcap = reg; 3155 if (sc->bge_asicrev == BGE_ASICREV_BCM5719 || 3156 sc->bge_asicrev == BGE_ASICREV_BCM5720) 3157 pci_set_max_read_req(dev, 2048); 3158 else if (pci_get_max_read_req(dev) != 4096) 3159 pci_set_max_read_req(dev, 4096); 3160 } else { 3161 /* 3162 * Check if the device is in PCI-X Mode. 3163 * (This bit is not valid on PCI Express controllers.) 3164 */ 3165 if (pci_find_cap(dev, PCIY_PCIX, ®) == 0) 3166 sc->bge_pcixcap = reg; 3167 if ((pci_read_config(dev, BGE_PCI_PCISTATE, 4) & 3168 BGE_PCISTATE_PCI_BUSMODE) == 0) 3169 sc->bge_flags |= BGE_FLAG_PCIX; 3170 } 3171 3172 /* 3173 * The 40bit DMA bug applies to the 5714/5715 controllers and is 3174 * not actually a MAC controller bug but an issue with the embedded 3175 * PCIe to PCI-X bridge in the device. Use 40bit DMA workaround. 3176 */ 3177 if (BGE_IS_5714_FAMILY(sc) && (sc->bge_flags & BGE_FLAG_PCIX)) 3178 sc->bge_flags |= BGE_FLAG_40BIT_BUG; 3179 /* 3180 * Some PCI-X bridges are known to trigger write reordering to 3181 * the mailbox registers. Typical phenomena is watchdog timeouts 3182 * caused by out-of-order TX completions. Enable workaround for 3183 * PCI-X devices that live behind these bridges. 3184 * Note, PCI-X controllers can run in PCI mode so we can't use 3185 * BGE_FLAG_PCIX flag to detect PCI-X controllers. 3186 */ 3187 if (sc->bge_pcixcap != 0 && bge_mbox_reorder(sc) != 0) 3188 sc->bge_flags |= BGE_FLAG_MBOX_REORDER; 3189 /* 3190 * Allocate the interrupt, using MSI if possible. These devices 3191 * support 8 MSI messages, but only the first one is used in 3192 * normal operation. 3193 */ 3194 rid = 0; 3195 if (pci_find_cap(sc->bge_dev, PCIY_MSI, ®) == 0) { 3196 sc->bge_msicap = reg; 3197 if (bge_can_use_msi(sc)) { 3198 msicount = pci_msi_count(dev); 3199 if (msicount > 1) 3200 msicount = 1; 3201 } else 3202 msicount = 0; 3203 if (msicount == 1 && pci_alloc_msi(dev, &msicount) == 0) { 3204 rid = 1; 3205 sc->bge_flags |= BGE_FLAG_MSI; 3206 } 3207 } 3208 3209 /* 3210 * All controllers except BCM5700 supports tagged status but 3211 * we use tagged status only for MSI case on BCM5717. Otherwise 3212 * MSI on BCM5717 does not work. 3213 */ 3214 #ifndef DEVICE_POLLING 3215 if (sc->bge_flags & BGE_FLAG_MSI && BGE_IS_5717_PLUS(sc)) 3216 sc->bge_flags |= BGE_FLAG_TAGGED_STATUS; 3217 #endif 3218 3219 sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 3220 RF_SHAREABLE | RF_ACTIVE); 3221 3222 if (sc->bge_irq == NULL) { 3223 device_printf(sc->bge_dev, "couldn't map interrupt\n"); 3224 error = ENXIO; 3225 goto fail; 3226 } 3227 3228 bge_devinfo(sc); 3229 3230 BGE_LOCK_INIT(sc, device_get_nameunit(dev)); 3231 3232 /* Try to reset the chip. */ 3233 if (bge_reset(sc)) { 3234 device_printf(sc->bge_dev, "chip reset failed\n"); 3235 error = ENXIO; 3236 goto fail; 3237 } 3238 3239 sc->bge_asf_mode = 0; 3240 if (bge_allow_asf && (bge_readmem_ind(sc, BGE_SRAM_DATA_SIG) == 3241 BGE_SRAM_DATA_SIG_MAGIC)) { 3242 if (bge_readmem_ind(sc, BGE_SRAM_DATA_CFG) 3243 & BGE_HWCFG_ASF) { 3244 sc->bge_asf_mode |= ASF_ENABLE; 3245 sc->bge_asf_mode |= ASF_STACKUP; 3246 if (BGE_IS_575X_PLUS(sc)) 3247 sc->bge_asf_mode |= ASF_NEW_HANDSHAKE; 3248 } 3249 } 3250 3251 /* Try to reset the chip again the nice way. */ 3252 bge_stop_fw(sc); 3253 bge_sig_pre_reset(sc, BGE_RESET_STOP); 3254 if (bge_reset(sc)) { 3255 device_printf(sc->bge_dev, "chip reset failed\n"); 3256 error = ENXIO; 3257 goto fail; 3258 } 3259 3260 bge_sig_legacy(sc, BGE_RESET_STOP); 3261 bge_sig_post_reset(sc, BGE_RESET_STOP); 3262 3263 if (bge_chipinit(sc)) { 3264 device_printf(sc->bge_dev, "chip initialization failed\n"); 3265 error = ENXIO; 3266 goto fail; 3267 } 3268 3269 error = bge_get_eaddr(sc, eaddr); 3270 if (error) { 3271 device_printf(sc->bge_dev, 3272 "failed to read station address\n"); 3273 error = ENXIO; 3274 goto fail; 3275 } 3276 3277 /* 5705 limits RX return ring to 512 entries. */ 3278 if (BGE_IS_5717_PLUS(sc)) 3279 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT; 3280 else if (BGE_IS_5705_PLUS(sc)) 3281 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705; 3282 else 3283 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT; 3284 3285 if (bge_dma_alloc(sc)) { 3286 device_printf(sc->bge_dev, 3287 "failed to allocate DMA resources\n"); 3288 error = ENXIO; 3289 goto fail; 3290 } 3291 3292 /* Set default tuneable values. */ 3293 sc->bge_stat_ticks = BGE_TICKS_PER_SEC; 3294 sc->bge_rx_coal_ticks = 150; 3295 sc->bge_tx_coal_ticks = 150; 3296 sc->bge_rx_max_coal_bds = 10; 3297 sc->bge_tx_max_coal_bds = 10; 3298 3299 /* Initialize checksum features to use. */ 3300 sc->bge_csum_features = BGE_CSUM_FEATURES; 3301 if (sc->bge_forced_udpcsum != 0) 3302 sc->bge_csum_features |= CSUM_UDP; 3303 3304 /* Set up ifnet structure */ 3305 ifp = sc->bge_ifp = if_alloc(IFT_ETHER); 3306 if (ifp == NULL) { 3307 device_printf(sc->bge_dev, "failed to if_alloc()\n"); 3308 error = ENXIO; 3309 goto fail; 3310 } 3311 ifp->if_softc = sc; 3312 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 3313 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 3314 ifp->if_ioctl = bge_ioctl; 3315 ifp->if_start = bge_start; 3316 ifp->if_init = bge_init; 3317 ifp->if_snd.ifq_drv_maxlen = BGE_TX_RING_CNT - 1; 3318 IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen); 3319 IFQ_SET_READY(&ifp->if_snd); 3320 ifp->if_hwassist = sc->bge_csum_features; 3321 ifp->if_capabilities = IFCAP_HWCSUM | IFCAP_VLAN_HWTAGGING | 3322 IFCAP_VLAN_MTU; 3323 if ((sc->bge_flags & (BGE_FLAG_TSO | BGE_FLAG_TSO3)) != 0) { 3324 ifp->if_hwassist |= CSUM_TSO; 3325 ifp->if_capabilities |= IFCAP_TSO4 | IFCAP_VLAN_HWTSO; 3326 } 3327 #ifdef IFCAP_VLAN_HWCSUM 3328 ifp->if_capabilities |= IFCAP_VLAN_HWCSUM; 3329 #endif 3330 ifp->if_capenable = ifp->if_capabilities; 3331 #ifdef DEVICE_POLLING 3332 ifp->if_capabilities |= IFCAP_POLLING; 3333 #endif 3334 3335 /* 3336 * 5700 B0 chips do not support checksumming correctly due 3337 * to hardware bugs. 3338 */ 3339 if (sc->bge_chipid == BGE_CHIPID_BCM5700_B0) { 3340 ifp->if_capabilities &= ~IFCAP_HWCSUM; 3341 ifp->if_capenable &= ~IFCAP_HWCSUM; 3342 ifp->if_hwassist = 0; 3343 } 3344 3345 /* 3346 * Figure out what sort of media we have by checking the 3347 * hardware config word in the first 32k of NIC internal memory, 3348 * or fall back to examining the EEPROM if necessary. 3349 * Note: on some BCM5700 cards, this value appears to be unset. 3350 * If that's the case, we have to rely on identifying the NIC 3351 * by its PCI subsystem ID, as we do below for the SysKonnect 3352 * SK-9D41. 3353 */ 3354 if (bge_readmem_ind(sc, BGE_SRAM_DATA_SIG) == BGE_SRAM_DATA_SIG_MAGIC) 3355 hwcfg = bge_readmem_ind(sc, BGE_SRAM_DATA_CFG); 3356 else if ((sc->bge_flags & BGE_FLAG_EADDR) && 3357 (sc->bge_asicrev != BGE_ASICREV_BCM5906)) { 3358 if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET, 3359 sizeof(hwcfg))) { 3360 device_printf(sc->bge_dev, "failed to read EEPROM\n"); 3361 error = ENXIO; 3362 goto fail; 3363 } 3364 hwcfg = ntohl(hwcfg); 3365 } 3366 3367 /* The SysKonnect SK-9D41 is a 1000baseSX card. */ 3368 if ((pci_read_config(dev, BGE_PCI_SUBSYS, 4) >> 16) == 3369 SK_SUBSYSID_9D41 || (hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) { 3370 if (BGE_IS_5714_FAMILY(sc)) 3371 sc->bge_flags |= BGE_FLAG_MII_SERDES; 3372 else 3373 sc->bge_flags |= BGE_FLAG_TBI; 3374 } 3375 3376 if (sc->bge_flags & BGE_FLAG_TBI) { 3377 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK, bge_ifmedia_upd, 3378 bge_ifmedia_sts); 3379 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER | IFM_1000_SX, 0, NULL); 3380 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER | IFM_1000_SX | IFM_FDX, 3381 0, NULL); 3382 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); 3383 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER | IFM_AUTO); 3384 sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media; 3385 } else { 3386 /* 3387 * Do transceiver setup and tell the firmware the 3388 * driver is down so we can try to get access the 3389 * probe if ASF is running. Retry a couple of times 3390 * if we get a conflict with the ASF firmware accessing 3391 * the PHY. 3392 */ 3393 trys = 0; 3394 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 3395 again: 3396 bge_asf_driver_up(sc); 3397 3398 error = mii_attach(dev, &sc->bge_miibus, ifp, bge_ifmedia_upd, 3399 bge_ifmedia_sts, capmask, phy_addr, MII_OFFSET_ANY, 3400 MIIF_DOPAUSE); 3401 if (error != 0) { 3402 if (trys++ < 4) { 3403 device_printf(sc->bge_dev, "Try again\n"); 3404 bge_miibus_writereg(sc->bge_dev, 1, MII_BMCR, 3405 BMCR_RESET); 3406 goto again; 3407 } 3408 device_printf(sc->bge_dev, "attaching PHYs failed\n"); 3409 goto fail; 3410 } 3411 3412 /* 3413 * Now tell the firmware we are going up after probing the PHY 3414 */ 3415 if (sc->bge_asf_mode & ASF_STACKUP) 3416 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 3417 } 3418 3419 /* 3420 * When using the BCM5701 in PCI-X mode, data corruption has 3421 * been observed in the first few bytes of some received packets. 3422 * Aligning the packet buffer in memory eliminates the corruption. 3423 * Unfortunately, this misaligns the packet payloads. On platforms 3424 * which do not support unaligned accesses, we will realign the 3425 * payloads by copying the received packets. 3426 */ 3427 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 && 3428 sc->bge_flags & BGE_FLAG_PCIX) 3429 sc->bge_flags |= BGE_FLAG_RX_ALIGNBUG; 3430 3431 /* 3432 * Call MI attach routine. 3433 */ 3434 ether_ifattach(ifp, eaddr); 3435 callout_init_mtx(&sc->bge_stat_ch, &sc->bge_mtx, 0); 3436 3437 /* Tell upper layer we support long frames. */ 3438 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 3439 3440 /* 3441 * Hookup IRQ last. 3442 */ 3443 if (BGE_IS_5755_PLUS(sc) && sc->bge_flags & BGE_FLAG_MSI) { 3444 /* Take advantage of single-shot MSI. */ 3445 CSR_WRITE_4(sc, BGE_MSI_MODE, CSR_READ_4(sc, BGE_MSI_MODE) & 3446 ~BGE_MSIMODE_ONE_SHOT_DISABLE); 3447 sc->bge_tq = taskqueue_create_fast("bge_taskq", M_WAITOK, 3448 taskqueue_thread_enqueue, &sc->bge_tq); 3449 if (sc->bge_tq == NULL) { 3450 device_printf(dev, "could not create taskqueue.\n"); 3451 ether_ifdetach(ifp); 3452 error = ENXIO; 3453 goto fail; 3454 } 3455 taskqueue_start_threads(&sc->bge_tq, 1, PI_NET, "%s taskq", 3456 device_get_nameunit(sc->bge_dev)); 3457 error = bus_setup_intr(dev, sc->bge_irq, 3458 INTR_TYPE_NET | INTR_MPSAFE, bge_msi_intr, NULL, sc, 3459 &sc->bge_intrhand); 3460 if (error) 3461 ether_ifdetach(ifp); 3462 } else 3463 error = bus_setup_intr(dev, sc->bge_irq, 3464 INTR_TYPE_NET | INTR_MPSAFE, NULL, bge_intr, sc, 3465 &sc->bge_intrhand); 3466 3467 if (error) { 3468 bge_detach(dev); 3469 device_printf(sc->bge_dev, "couldn't set up irq\n"); 3470 } 3471 3472 return (0); 3473 3474 fail: 3475 bge_release_resources(sc); 3476 3477 return (error); 3478 } 3479 3480 static int 3481 bge_detach(device_t dev) 3482 { 3483 struct bge_softc *sc; 3484 struct ifnet *ifp; 3485 3486 sc = device_get_softc(dev); 3487 ifp = sc->bge_ifp; 3488 3489 #ifdef DEVICE_POLLING 3490 if (ifp->if_capenable & IFCAP_POLLING) 3491 ether_poll_deregister(ifp); 3492 #endif 3493 3494 BGE_LOCK(sc); 3495 bge_stop(sc); 3496 bge_reset(sc); 3497 BGE_UNLOCK(sc); 3498 3499 callout_drain(&sc->bge_stat_ch); 3500 3501 if (sc->bge_tq) 3502 taskqueue_drain(sc->bge_tq, &sc->bge_intr_task); 3503 ether_ifdetach(ifp); 3504 3505 if (sc->bge_flags & BGE_FLAG_TBI) { 3506 ifmedia_removeall(&sc->bge_ifmedia); 3507 } else { 3508 bus_generic_detach(dev); 3509 device_delete_child(dev, sc->bge_miibus); 3510 } 3511 3512 bge_release_resources(sc); 3513 3514 return (0); 3515 } 3516 3517 static void 3518 bge_release_resources(struct bge_softc *sc) 3519 { 3520 device_t dev; 3521 3522 dev = sc->bge_dev; 3523 3524 if (sc->bge_tq != NULL) 3525 taskqueue_free(sc->bge_tq); 3526 3527 if (sc->bge_intrhand != NULL) 3528 bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand); 3529 3530 if (sc->bge_irq != NULL) 3531 bus_release_resource(dev, SYS_RES_IRQ, 3532 sc->bge_flags & BGE_FLAG_MSI ? 1 : 0, sc->bge_irq); 3533 3534 if (sc->bge_flags & BGE_FLAG_MSI) 3535 pci_release_msi(dev); 3536 3537 if (sc->bge_res != NULL) 3538 bus_release_resource(dev, SYS_RES_MEMORY, 3539 PCIR_BAR(0), sc->bge_res); 3540 3541 if (sc->bge_ifp != NULL) 3542 if_free(sc->bge_ifp); 3543 3544 bge_dma_free(sc); 3545 3546 if (mtx_initialized(&sc->bge_mtx)) /* XXX */ 3547 BGE_LOCK_DESTROY(sc); 3548 } 3549 3550 static int 3551 bge_reset(struct bge_softc *sc) 3552 { 3553 device_t dev; 3554 uint32_t cachesize, command, pcistate, reset, val; 3555 void (*write_op)(struct bge_softc *, int, int); 3556 uint16_t devctl; 3557 int i; 3558 3559 dev = sc->bge_dev; 3560 3561 if (BGE_IS_575X_PLUS(sc) && !BGE_IS_5714_FAMILY(sc) && 3562 (sc->bge_asicrev != BGE_ASICREV_BCM5906)) { 3563 if (sc->bge_flags & BGE_FLAG_PCIE) 3564 write_op = bge_writemem_direct; 3565 else 3566 write_op = bge_writemem_ind; 3567 } else 3568 write_op = bge_writereg_ind; 3569 3570 /* Save some important PCI state. */ 3571 cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4); 3572 command = pci_read_config(dev, BGE_PCI_CMD, 4); 3573 pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4); 3574 3575 pci_write_config(dev, BGE_PCI_MISC_CTL, 3576 BGE_PCIMISCCTL_INDIRECT_ACCESS | BGE_PCIMISCCTL_MASK_PCI_INTR | 3577 BGE_HIF_SWAP_OPTIONS | BGE_PCIMISCCTL_PCISTATE_RW, 4); 3578 3579 /* Disable fastboot on controllers that support it. */ 3580 if (sc->bge_asicrev == BGE_ASICREV_BCM5752 || 3581 BGE_IS_5755_PLUS(sc)) { 3582 if (bootverbose) 3583 device_printf(dev, "Disabling fastboot\n"); 3584 CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0); 3585 } 3586 3587 /* 3588 * Write the magic number to SRAM at offset 0xB50. 3589 * When firmware finishes its initialization it will 3590 * write ~BGE_SRAM_FW_MB_MAGIC to the same location. 3591 */ 3592 bge_writemem_ind(sc, BGE_SRAM_FW_MB, BGE_SRAM_FW_MB_MAGIC); 3593 3594 reset = BGE_MISCCFG_RESET_CORE_CLOCKS | BGE_32BITTIME_66MHZ; 3595 3596 /* XXX: Broadcom Linux driver. */ 3597 if (sc->bge_flags & BGE_FLAG_PCIE) { 3598 if (CSR_READ_4(sc, 0x7E2C) == 0x60) /* PCIE 1.0 */ 3599 CSR_WRITE_4(sc, 0x7E2C, 0x20); 3600 if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) { 3601 /* Prevent PCIE link training during global reset */ 3602 CSR_WRITE_4(sc, BGE_MISC_CFG, 1 << 29); 3603 reset |= 1 << 29; 3604 } 3605 } 3606 3607 /* 3608 * Set GPHY Power Down Override to leave GPHY 3609 * powered up in D0 uninitialized. 3610 */ 3611 if (BGE_IS_5705_PLUS(sc) && 3612 (sc->bge_flags & BGE_FLAG_CPMU_PRESENT) == 0) 3613 reset |= BGE_MISCCFG_GPHY_PD_OVERRIDE; 3614 3615 /* Issue global reset */ 3616 write_op(sc, BGE_MISC_CFG, reset); 3617 3618 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) { 3619 val = CSR_READ_4(sc, BGE_VCPU_STATUS); 3620 CSR_WRITE_4(sc, BGE_VCPU_STATUS, 3621 val | BGE_VCPU_STATUS_DRV_RESET); 3622 val = CSR_READ_4(sc, BGE_VCPU_EXT_CTRL); 3623 CSR_WRITE_4(sc, BGE_VCPU_EXT_CTRL, 3624 val & ~BGE_VCPU_EXT_CTRL_HALT_CPU); 3625 } 3626 3627 DELAY(1000); 3628 3629 /* XXX: Broadcom Linux driver. */ 3630 if (sc->bge_flags & BGE_FLAG_PCIE) { 3631 if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) { 3632 DELAY(500000); /* wait for link training to complete */ 3633 val = pci_read_config(dev, 0xC4, 4); 3634 pci_write_config(dev, 0xC4, val | (1 << 15), 4); 3635 } 3636 devctl = pci_read_config(dev, 3637 sc->bge_expcap + PCIR_EXPRESS_DEVICE_CTL, 2); 3638 /* Clear enable no snoop and disable relaxed ordering. */ 3639 devctl &= ~(PCIM_EXP_CTL_RELAXED_ORD_ENABLE | 3640 PCIM_EXP_CTL_NOSNOOP_ENABLE); 3641 pci_write_config(dev, sc->bge_expcap + PCIR_EXPRESS_DEVICE_CTL, 3642 devctl, 2); 3643 /* Clear error status. */ 3644 pci_write_config(dev, sc->bge_expcap + PCIR_EXPRESS_DEVICE_STA, 3645 PCIM_EXP_STA_CORRECTABLE_ERROR | 3646 PCIM_EXP_STA_NON_FATAL_ERROR | PCIM_EXP_STA_FATAL_ERROR | 3647 PCIM_EXP_STA_UNSUPPORTED_REQ, 2); 3648 } 3649 3650 /* Reset some of the PCI state that got zapped by reset. */ 3651 pci_write_config(dev, BGE_PCI_MISC_CTL, 3652 BGE_PCIMISCCTL_INDIRECT_ACCESS | BGE_PCIMISCCTL_MASK_PCI_INTR | 3653 BGE_HIF_SWAP_OPTIONS | BGE_PCIMISCCTL_PCISTATE_RW, 4); 3654 pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4); 3655 pci_write_config(dev, BGE_PCI_CMD, command, 4); 3656 write_op(sc, BGE_MISC_CFG, BGE_32BITTIME_66MHZ); 3657 /* 3658 * Disable PCI-X relaxed ordering to ensure status block update 3659 * comes first then packet buffer DMA. Otherwise driver may 3660 * read stale status block. 3661 */ 3662 if (sc->bge_flags & BGE_FLAG_PCIX) { 3663 devctl = pci_read_config(dev, 3664 sc->bge_pcixcap + PCIXR_COMMAND, 2); 3665 devctl &= ~PCIXM_COMMAND_ERO; 3666 if (sc->bge_asicrev == BGE_ASICREV_BCM5703) { 3667 devctl &= ~PCIXM_COMMAND_MAX_READ; 3668 devctl |= PCIXM_COMMAND_MAX_READ_2048; 3669 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) { 3670 devctl &= ~(PCIXM_COMMAND_MAX_SPLITS | 3671 PCIXM_COMMAND_MAX_READ); 3672 devctl |= PCIXM_COMMAND_MAX_READ_2048; 3673 } 3674 pci_write_config(dev, sc->bge_pcixcap + PCIXR_COMMAND, 3675 devctl, 2); 3676 } 3677 /* Re-enable MSI, if necessary, and enable the memory arbiter. */ 3678 if (BGE_IS_5714_FAMILY(sc)) { 3679 /* This chip disables MSI on reset. */ 3680 if (sc->bge_flags & BGE_FLAG_MSI) { 3681 val = pci_read_config(dev, 3682 sc->bge_msicap + PCIR_MSI_CTRL, 2); 3683 pci_write_config(dev, 3684 sc->bge_msicap + PCIR_MSI_CTRL, 3685 val | PCIM_MSICTRL_MSI_ENABLE, 2); 3686 val = CSR_READ_4(sc, BGE_MSI_MODE); 3687 CSR_WRITE_4(sc, BGE_MSI_MODE, 3688 val | BGE_MSIMODE_ENABLE); 3689 } 3690 val = CSR_READ_4(sc, BGE_MARB_MODE); 3691 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val); 3692 } else 3693 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); 3694 3695 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) { 3696 for (i = 0; i < BGE_TIMEOUT; i++) { 3697 val = CSR_READ_4(sc, BGE_VCPU_STATUS); 3698 if (val & BGE_VCPU_STATUS_INIT_DONE) 3699 break; 3700 DELAY(100); 3701 } 3702 if (i == BGE_TIMEOUT) { 3703 device_printf(dev, "reset timed out\n"); 3704 return (1); 3705 } 3706 } else { 3707 /* 3708 * Poll until we see the 1's complement of the magic number. 3709 * This indicates that the firmware initialization is complete. 3710 * We expect this to fail if no chip containing the Ethernet 3711 * address is fitted though. 3712 */ 3713 for (i = 0; i < BGE_TIMEOUT; i++) { 3714 DELAY(10); 3715 val = bge_readmem_ind(sc, BGE_SRAM_FW_MB); 3716 if (val == ~BGE_SRAM_FW_MB_MAGIC) 3717 break; 3718 } 3719 3720 if ((sc->bge_flags & BGE_FLAG_EADDR) && i == BGE_TIMEOUT) 3721 device_printf(dev, 3722 "firmware handshake timed out, found 0x%08x\n", 3723 val); 3724 /* BCM57765 A0 needs additional time before accessing. */ 3725 if (sc->bge_chipid == BGE_CHIPID_BCM57765_A0) 3726 DELAY(10 * 1000); /* XXX */ 3727 } 3728 3729 /* 3730 * XXX Wait for the value of the PCISTATE register to 3731 * return to its original pre-reset state. This is a 3732 * fairly good indicator of reset completion. If we don't 3733 * wait for the reset to fully complete, trying to read 3734 * from the device's non-PCI registers may yield garbage 3735 * results. 3736 */ 3737 for (i = 0; i < BGE_TIMEOUT; i++) { 3738 if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate) 3739 break; 3740 DELAY(10); 3741 } 3742 3743 /* Fix up byte swapping. */ 3744 CSR_WRITE_4(sc, BGE_MODE_CTL, bge_dma_swap_options(sc)); 3745 3746 /* Tell the ASF firmware we are up */ 3747 if (sc->bge_asf_mode & ASF_STACKUP) 3748 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 3749 3750 CSR_WRITE_4(sc, BGE_MAC_MODE, 0); 3751 3752 /* 3753 * The 5704 in TBI mode apparently needs some special 3754 * adjustment to insure the SERDES drive level is set 3755 * to 1.2V. 3756 */ 3757 if (sc->bge_asicrev == BGE_ASICREV_BCM5704 && 3758 sc->bge_flags & BGE_FLAG_TBI) { 3759 val = CSR_READ_4(sc, BGE_SERDES_CFG); 3760 val = (val & ~0xFFF) | 0x880; 3761 CSR_WRITE_4(sc, BGE_SERDES_CFG, val); 3762 } 3763 3764 /* XXX: Broadcom Linux driver. */ 3765 if (sc->bge_flags & BGE_FLAG_PCIE && 3766 !BGE_IS_5717_PLUS(sc) && 3767 sc->bge_chipid != BGE_CHIPID_BCM5750_A0 && 3768 sc->bge_asicrev != BGE_ASICREV_BCM5785) { 3769 /* Enable Data FIFO protection. */ 3770 val = CSR_READ_4(sc, 0x7C00); 3771 CSR_WRITE_4(sc, 0x7C00, val | (1 << 25)); 3772 } 3773 DELAY(10000); 3774 3775 if (sc->bge_asicrev == BGE_ASICREV_BCM5720) 3776 BGE_CLRBIT(sc, BGE_CPMU_CLCK_ORIDE, 3777 CPMU_CLCK_ORIDE_MAC_ORIDE_EN); 3778 3779 return (0); 3780 } 3781 3782 static __inline void 3783 bge_rxreuse_std(struct bge_softc *sc, int i) 3784 { 3785 struct bge_rx_bd *r; 3786 3787 r = &sc->bge_ldata.bge_rx_std_ring[sc->bge_std]; 3788 r->bge_flags = BGE_RXBDFLAG_END; 3789 r->bge_len = sc->bge_cdata.bge_rx_std_seglen[i]; 3790 r->bge_idx = i; 3791 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT); 3792 } 3793 3794 static __inline void 3795 bge_rxreuse_jumbo(struct bge_softc *sc, int i) 3796 { 3797 struct bge_extrx_bd *r; 3798 3799 r = &sc->bge_ldata.bge_rx_jumbo_ring[sc->bge_jumbo]; 3800 r->bge_flags = BGE_RXBDFLAG_JUMBO_RING | BGE_RXBDFLAG_END; 3801 r->bge_len0 = sc->bge_cdata.bge_rx_jumbo_seglen[i][0]; 3802 r->bge_len1 = sc->bge_cdata.bge_rx_jumbo_seglen[i][1]; 3803 r->bge_len2 = sc->bge_cdata.bge_rx_jumbo_seglen[i][2]; 3804 r->bge_len3 = sc->bge_cdata.bge_rx_jumbo_seglen[i][3]; 3805 r->bge_idx = i; 3806 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT); 3807 } 3808 3809 /* 3810 * Frame reception handling. This is called if there's a frame 3811 * on the receive return list. 3812 * 3813 * Note: we have to be able to handle two possibilities here: 3814 * 1) the frame is from the jumbo receive ring 3815 * 2) the frame is from the standard receive ring 3816 */ 3817 3818 static int 3819 bge_rxeof(struct bge_softc *sc, uint16_t rx_prod, int holdlck) 3820 { 3821 struct ifnet *ifp; 3822 int rx_npkts = 0, stdcnt = 0, jumbocnt = 0; 3823 uint16_t rx_cons; 3824 3825 rx_cons = sc->bge_rx_saved_considx; 3826 3827 /* Nothing to do. */ 3828 if (rx_cons == rx_prod) 3829 return (rx_npkts); 3830 3831 ifp = sc->bge_ifp; 3832 3833 bus_dmamap_sync(sc->bge_cdata.bge_rx_return_ring_tag, 3834 sc->bge_cdata.bge_rx_return_ring_map, BUS_DMASYNC_POSTREAD); 3835 bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, 3836 sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_POSTWRITE); 3837 if (BGE_IS_JUMBO_CAPABLE(sc) && 3838 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN > 3839 (MCLBYTES - ETHER_ALIGN)) 3840 bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, 3841 sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_POSTWRITE); 3842 3843 while (rx_cons != rx_prod) { 3844 struct bge_rx_bd *cur_rx; 3845 uint32_t rxidx; 3846 struct mbuf *m = NULL; 3847 uint16_t vlan_tag = 0; 3848 int have_tag = 0; 3849 3850 #ifdef DEVICE_POLLING 3851 if (ifp->if_capenable & IFCAP_POLLING) { 3852 if (sc->rxcycles <= 0) 3853 break; 3854 sc->rxcycles--; 3855 } 3856 #endif 3857 3858 cur_rx = &sc->bge_ldata.bge_rx_return_ring[rx_cons]; 3859 3860 rxidx = cur_rx->bge_idx; 3861 BGE_INC(rx_cons, sc->bge_return_ring_cnt); 3862 3863 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING && 3864 cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) { 3865 have_tag = 1; 3866 vlan_tag = cur_rx->bge_vlan_tag; 3867 } 3868 3869 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) { 3870 jumbocnt++; 3871 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx]; 3872 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { 3873 bge_rxreuse_jumbo(sc, rxidx); 3874 continue; 3875 } 3876 if (bge_newbuf_jumbo(sc, rxidx) != 0) { 3877 bge_rxreuse_jumbo(sc, rxidx); 3878 ifp->if_iqdrops++; 3879 continue; 3880 } 3881 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT); 3882 } else { 3883 stdcnt++; 3884 m = sc->bge_cdata.bge_rx_std_chain[rxidx]; 3885 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { 3886 bge_rxreuse_std(sc, rxidx); 3887 continue; 3888 } 3889 if (bge_newbuf_std(sc, rxidx) != 0) { 3890 bge_rxreuse_std(sc, rxidx); 3891 ifp->if_iqdrops++; 3892 continue; 3893 } 3894 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT); 3895 } 3896 3897 ifp->if_ipackets++; 3898 #ifndef __NO_STRICT_ALIGNMENT 3899 /* 3900 * For architectures with strict alignment we must make sure 3901 * the payload is aligned. 3902 */ 3903 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) { 3904 bcopy(m->m_data, m->m_data + ETHER_ALIGN, 3905 cur_rx->bge_len); 3906 m->m_data += ETHER_ALIGN; 3907 } 3908 #endif 3909 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN; 3910 m->m_pkthdr.rcvif = ifp; 3911 3912 if (ifp->if_capenable & IFCAP_RXCSUM) 3913 bge_rxcsum(sc, cur_rx, m); 3914 3915 /* 3916 * If we received a packet with a vlan tag, 3917 * attach that information to the packet. 3918 */ 3919 if (have_tag) { 3920 m->m_pkthdr.ether_vtag = vlan_tag; 3921 m->m_flags |= M_VLANTAG; 3922 } 3923 3924 if (holdlck != 0) { 3925 BGE_UNLOCK(sc); 3926 (*ifp->if_input)(ifp, m); 3927 BGE_LOCK(sc); 3928 } else 3929 (*ifp->if_input)(ifp, m); 3930 rx_npkts++; 3931 3932 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 3933 return (rx_npkts); 3934 } 3935 3936 bus_dmamap_sync(sc->bge_cdata.bge_rx_return_ring_tag, 3937 sc->bge_cdata.bge_rx_return_ring_map, BUS_DMASYNC_PREREAD); 3938 if (stdcnt > 0) 3939 bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag, 3940 sc->bge_cdata.bge_rx_std_ring_map, BUS_DMASYNC_PREWRITE); 3941 3942 if (jumbocnt > 0) 3943 bus_dmamap_sync(sc->bge_cdata.bge_rx_jumbo_ring_tag, 3944 sc->bge_cdata.bge_rx_jumbo_ring_map, BUS_DMASYNC_PREWRITE); 3945 3946 sc->bge_rx_saved_considx = rx_cons; 3947 bge_writembx(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx); 3948 if (stdcnt) 3949 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, (sc->bge_std + 3950 BGE_STD_RX_RING_CNT - 1) % BGE_STD_RX_RING_CNT); 3951 if (jumbocnt) 3952 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, (sc->bge_jumbo + 3953 BGE_JUMBO_RX_RING_CNT - 1) % BGE_JUMBO_RX_RING_CNT); 3954 #ifdef notyet 3955 /* 3956 * This register wraps very quickly under heavy packet drops. 3957 * If you need correct statistics, you can enable this check. 3958 */ 3959 if (BGE_IS_5705_PLUS(sc)) 3960 ifp->if_ierrors += CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_DROPS); 3961 #endif 3962 return (rx_npkts); 3963 } 3964 3965 static void 3966 bge_rxcsum(struct bge_softc *sc, struct bge_rx_bd *cur_rx, struct mbuf *m) 3967 { 3968 3969 if (BGE_IS_5717_PLUS(sc)) { 3970 if ((cur_rx->bge_flags & BGE_RXBDFLAG_IPV6) == 0) { 3971 if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) { 3972 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; 3973 if ((cur_rx->bge_error_flag & 3974 BGE_RXERRFLAG_IP_CSUM_NOK) == 0) 3975 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 3976 } 3977 if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) { 3978 m->m_pkthdr.csum_data = 3979 cur_rx->bge_tcp_udp_csum; 3980 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID | 3981 CSUM_PSEUDO_HDR; 3982 } 3983 } 3984 } else { 3985 if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) { 3986 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; 3987 if ((cur_rx->bge_ip_csum ^ 0xFFFF) == 0) 3988 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 3989 } 3990 if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM && 3991 m->m_pkthdr.len >= ETHER_MIN_NOPAD) { 3992 m->m_pkthdr.csum_data = 3993 cur_rx->bge_tcp_udp_csum; 3994 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID | 3995 CSUM_PSEUDO_HDR; 3996 } 3997 } 3998 } 3999 4000 static void 4001 bge_txeof(struct bge_softc *sc, uint16_t tx_cons) 4002 { 4003 struct bge_tx_bd *cur_tx; 4004 struct ifnet *ifp; 4005 4006 BGE_LOCK_ASSERT(sc); 4007 4008 /* Nothing to do. */ 4009 if (sc->bge_tx_saved_considx == tx_cons) 4010 return; 4011 4012 ifp = sc->bge_ifp; 4013 4014 bus_dmamap_sync(sc->bge_cdata.bge_tx_ring_tag, 4015 sc->bge_cdata.bge_tx_ring_map, BUS_DMASYNC_POSTWRITE); 4016 /* 4017 * Go through our tx ring and free mbufs for those 4018 * frames that have been sent. 4019 */ 4020 while (sc->bge_tx_saved_considx != tx_cons) { 4021 uint32_t idx; 4022 4023 idx = sc->bge_tx_saved_considx; 4024 cur_tx = &sc->bge_ldata.bge_tx_ring[idx]; 4025 if (cur_tx->bge_flags & BGE_TXBDFLAG_END) 4026 ifp->if_opackets++; 4027 if (sc->bge_cdata.bge_tx_chain[idx] != NULL) { 4028 bus_dmamap_sync(sc->bge_cdata.bge_tx_mtag, 4029 sc->bge_cdata.bge_tx_dmamap[idx], 4030 BUS_DMASYNC_POSTWRITE); 4031 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag, 4032 sc->bge_cdata.bge_tx_dmamap[idx]); 4033 m_freem(sc->bge_cdata.bge_tx_chain[idx]); 4034 sc->bge_cdata.bge_tx_chain[idx] = NULL; 4035 } 4036 sc->bge_txcnt--; 4037 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT); 4038 } 4039 4040 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 4041 if (sc->bge_txcnt == 0) 4042 sc->bge_timer = 0; 4043 } 4044 4045 #ifdef DEVICE_POLLING 4046 static int 4047 bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 4048 { 4049 struct bge_softc *sc = ifp->if_softc; 4050 uint16_t rx_prod, tx_cons; 4051 uint32_t statusword; 4052 int rx_npkts = 0; 4053 4054 BGE_LOCK(sc); 4055 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 4056 BGE_UNLOCK(sc); 4057 return (rx_npkts); 4058 } 4059 4060 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 4061 sc->bge_cdata.bge_status_map, 4062 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 4063 rx_prod = sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx; 4064 tx_cons = sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx; 4065 4066 statusword = sc->bge_ldata.bge_status_block->bge_status; 4067 sc->bge_ldata.bge_status_block->bge_status = 0; 4068 4069 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 4070 sc->bge_cdata.bge_status_map, 4071 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 4072 4073 /* Note link event. It will be processed by POLL_AND_CHECK_STATUS. */ 4074 if (statusword & BGE_STATFLAG_LINKSTATE_CHANGED) 4075 sc->bge_link_evt++; 4076 4077 if (cmd == POLL_AND_CHECK_STATUS) 4078 if ((sc->bge_asicrev == BGE_ASICREV_BCM5700 && 4079 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) || 4080 sc->bge_link_evt || (sc->bge_flags & BGE_FLAG_TBI)) 4081 bge_link_upd(sc); 4082 4083 sc->rxcycles = count; 4084 rx_npkts = bge_rxeof(sc, rx_prod, 1); 4085 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 4086 BGE_UNLOCK(sc); 4087 return (rx_npkts); 4088 } 4089 bge_txeof(sc, tx_cons); 4090 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 4091 bge_start_locked(ifp); 4092 4093 BGE_UNLOCK(sc); 4094 return (rx_npkts); 4095 } 4096 #endif /* DEVICE_POLLING */ 4097 4098 static int 4099 bge_msi_intr(void *arg) 4100 { 4101 struct bge_softc *sc; 4102 4103 sc = (struct bge_softc *)arg; 4104 /* 4105 * This interrupt is not shared and controller already 4106 * disabled further interrupt. 4107 */ 4108 taskqueue_enqueue(sc->bge_tq, &sc->bge_intr_task); 4109 return (FILTER_HANDLED); 4110 } 4111 4112 static void 4113 bge_intr_task(void *arg, int pending) 4114 { 4115 struct bge_softc *sc; 4116 struct ifnet *ifp; 4117 uint32_t status, status_tag; 4118 uint16_t rx_prod, tx_cons; 4119 4120 sc = (struct bge_softc *)arg; 4121 ifp = sc->bge_ifp; 4122 4123 BGE_LOCK(sc); 4124 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 4125 BGE_UNLOCK(sc); 4126 return; 4127 } 4128 4129 /* Get updated status block. */ 4130 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 4131 sc->bge_cdata.bge_status_map, 4132 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 4133 4134 /* Save producer/consumer indexess. */ 4135 rx_prod = sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx; 4136 tx_cons = sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx; 4137 status = sc->bge_ldata.bge_status_block->bge_status; 4138 status_tag = sc->bge_ldata.bge_status_block->bge_status_tag << 24; 4139 sc->bge_ldata.bge_status_block->bge_status = 0; 4140 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 4141 sc->bge_cdata.bge_status_map, 4142 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 4143 if ((sc->bge_flags & BGE_FLAG_TAGGED_STATUS) == 0) 4144 status_tag = 0; 4145 4146 if ((status & BGE_STATFLAG_LINKSTATE_CHANGED) != 0) 4147 bge_link_upd(sc); 4148 4149 /* Let controller work. */ 4150 bge_writembx(sc, BGE_MBX_IRQ0_LO, status_tag); 4151 4152 if (ifp->if_drv_flags & IFF_DRV_RUNNING && 4153 sc->bge_rx_saved_considx != rx_prod) { 4154 /* Check RX return ring producer/consumer. */ 4155 BGE_UNLOCK(sc); 4156 bge_rxeof(sc, rx_prod, 0); 4157 BGE_LOCK(sc); 4158 } 4159 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 4160 /* Check TX ring producer/consumer. */ 4161 bge_txeof(sc, tx_cons); 4162 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 4163 bge_start_locked(ifp); 4164 } 4165 BGE_UNLOCK(sc); 4166 } 4167 4168 static void 4169 bge_intr(void *xsc) 4170 { 4171 struct bge_softc *sc; 4172 struct ifnet *ifp; 4173 uint32_t statusword; 4174 uint16_t rx_prod, tx_cons; 4175 4176 sc = xsc; 4177 4178 BGE_LOCK(sc); 4179 4180 ifp = sc->bge_ifp; 4181 4182 #ifdef DEVICE_POLLING 4183 if (ifp->if_capenable & IFCAP_POLLING) { 4184 BGE_UNLOCK(sc); 4185 return; 4186 } 4187 #endif 4188 4189 /* 4190 * Ack the interrupt by writing something to BGE_MBX_IRQ0_LO. Don't 4191 * disable interrupts by writing nonzero like we used to, since with 4192 * our current organization this just gives complications and 4193 * pessimizations for re-enabling interrupts. We used to have races 4194 * instead of the necessary complications. Disabling interrupts 4195 * would just reduce the chance of a status update while we are 4196 * running (by switching to the interrupt-mode coalescence 4197 * parameters), but this chance is already very low so it is more 4198 * efficient to get another interrupt than prevent it. 4199 * 4200 * We do the ack first to ensure another interrupt if there is a 4201 * status update after the ack. We don't check for the status 4202 * changing later because it is more efficient to get another 4203 * interrupt than prevent it, not quite as above (not checking is 4204 * a smaller optimization than not toggling the interrupt enable, 4205 * since checking doesn't involve PCI accesses and toggling require 4206 * the status check). So toggling would probably be a pessimization 4207 * even with MSI. It would only be needed for using a task queue. 4208 */ 4209 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0); 4210 4211 /* 4212 * Do the mandatory PCI flush as well as get the link status. 4213 */ 4214 statusword = CSR_READ_4(sc, BGE_MAC_STS) & BGE_MACSTAT_LINK_CHANGED; 4215 4216 /* Make sure the descriptor ring indexes are coherent. */ 4217 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 4218 sc->bge_cdata.bge_status_map, 4219 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 4220 rx_prod = sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx; 4221 tx_cons = sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx; 4222 sc->bge_ldata.bge_status_block->bge_status = 0; 4223 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 4224 sc->bge_cdata.bge_status_map, 4225 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 4226 4227 if ((sc->bge_asicrev == BGE_ASICREV_BCM5700 && 4228 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) || 4229 statusword || sc->bge_link_evt) 4230 bge_link_upd(sc); 4231 4232 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 4233 /* Check RX return ring producer/consumer. */ 4234 bge_rxeof(sc, rx_prod, 1); 4235 } 4236 4237 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 4238 /* Check TX ring producer/consumer. */ 4239 bge_txeof(sc, tx_cons); 4240 } 4241 4242 if (ifp->if_drv_flags & IFF_DRV_RUNNING && 4243 !IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 4244 bge_start_locked(ifp); 4245 4246 BGE_UNLOCK(sc); 4247 } 4248 4249 static void 4250 bge_asf_driver_up(struct bge_softc *sc) 4251 { 4252 if (sc->bge_asf_mode & ASF_STACKUP) { 4253 /* Send ASF heartbeat aprox. every 2s */ 4254 if (sc->bge_asf_count) 4255 sc->bge_asf_count --; 4256 else { 4257 sc->bge_asf_count = 2; 4258 bge_writemem_ind(sc, BGE_SRAM_FW_CMD_MB, 4259 BGE_FW_CMD_DRV_ALIVE); 4260 bge_writemem_ind(sc, BGE_SRAM_FW_CMD_LEN_MB, 4); 4261 bge_writemem_ind(sc, BGE_SRAM_FW_CMD_DATA_MB, 4262 BGE_FW_HB_TIMEOUT_SEC); 4263 CSR_WRITE_4(sc, BGE_RX_CPU_EVENT, 4264 CSR_READ_4(sc, BGE_RX_CPU_EVENT) | 4265 BGE_RX_CPU_DRV_EVENT); 4266 } 4267 } 4268 } 4269 4270 static void 4271 bge_tick(void *xsc) 4272 { 4273 struct bge_softc *sc = xsc; 4274 struct mii_data *mii = NULL; 4275 4276 BGE_LOCK_ASSERT(sc); 4277 4278 /* Synchronize with possible callout reset/stop. */ 4279 if (callout_pending(&sc->bge_stat_ch) || 4280 !callout_active(&sc->bge_stat_ch)) 4281 return; 4282 4283 if (BGE_IS_5705_PLUS(sc)) 4284 bge_stats_update_regs(sc); 4285 else 4286 bge_stats_update(sc); 4287 4288 if ((sc->bge_flags & BGE_FLAG_TBI) == 0) { 4289 mii = device_get_softc(sc->bge_miibus); 4290 /* 4291 * Do not touch PHY if we have link up. This could break 4292 * IPMI/ASF mode or produce extra input errors 4293 * (extra errors was reported for bcm5701 & bcm5704). 4294 */ 4295 if (!sc->bge_link) 4296 mii_tick(mii); 4297 } else { 4298 /* 4299 * Since in TBI mode auto-polling can't be used we should poll 4300 * link status manually. Here we register pending link event 4301 * and trigger interrupt. 4302 */ 4303 #ifdef DEVICE_POLLING 4304 /* In polling mode we poll link state in bge_poll(). */ 4305 if (!(sc->bge_ifp->if_capenable & IFCAP_POLLING)) 4306 #endif 4307 { 4308 sc->bge_link_evt++; 4309 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 || 4310 sc->bge_flags & BGE_FLAG_5788) 4311 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET); 4312 else 4313 BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW); 4314 } 4315 } 4316 4317 bge_asf_driver_up(sc); 4318 bge_watchdog(sc); 4319 4320 callout_reset(&sc->bge_stat_ch, hz, bge_tick, sc); 4321 } 4322 4323 static void 4324 bge_stats_update_regs(struct bge_softc *sc) 4325 { 4326 struct ifnet *ifp; 4327 struct bge_mac_stats *stats; 4328 4329 ifp = sc->bge_ifp; 4330 stats = &sc->bge_mac_stats; 4331 4332 stats->ifHCOutOctets += 4333 CSR_READ_4(sc, BGE_TX_MAC_STATS_OCTETS); 4334 stats->etherStatsCollisions += 4335 CSR_READ_4(sc, BGE_TX_MAC_STATS_COLLS); 4336 stats->outXonSent += 4337 CSR_READ_4(sc, BGE_TX_MAC_STATS_XON_SENT); 4338 stats->outXoffSent += 4339 CSR_READ_4(sc, BGE_TX_MAC_STATS_XOFF_SENT); 4340 stats->dot3StatsInternalMacTransmitErrors += 4341 CSR_READ_4(sc, BGE_TX_MAC_STATS_ERRORS); 4342 stats->dot3StatsSingleCollisionFrames += 4343 CSR_READ_4(sc, BGE_TX_MAC_STATS_SINGLE_COLL); 4344 stats->dot3StatsMultipleCollisionFrames += 4345 CSR_READ_4(sc, BGE_TX_MAC_STATS_MULTI_COLL); 4346 stats->dot3StatsDeferredTransmissions += 4347 CSR_READ_4(sc, BGE_TX_MAC_STATS_DEFERRED); 4348 stats->dot3StatsExcessiveCollisions += 4349 CSR_READ_4(sc, BGE_TX_MAC_STATS_EXCESS_COLL); 4350 stats->dot3StatsLateCollisions += 4351 CSR_READ_4(sc, BGE_TX_MAC_STATS_LATE_COLL); 4352 stats->ifHCOutUcastPkts += 4353 CSR_READ_4(sc, BGE_TX_MAC_STATS_UCAST); 4354 stats->ifHCOutMulticastPkts += 4355 CSR_READ_4(sc, BGE_TX_MAC_STATS_MCAST); 4356 stats->ifHCOutBroadcastPkts += 4357 CSR_READ_4(sc, BGE_TX_MAC_STATS_BCAST); 4358 4359 stats->ifHCInOctets += 4360 CSR_READ_4(sc, BGE_RX_MAC_STATS_OCTESTS); 4361 stats->etherStatsFragments += 4362 CSR_READ_4(sc, BGE_RX_MAC_STATS_FRAGMENTS); 4363 stats->ifHCInUcastPkts += 4364 CSR_READ_4(sc, BGE_RX_MAC_STATS_UCAST); 4365 stats->ifHCInMulticastPkts += 4366 CSR_READ_4(sc, BGE_RX_MAC_STATS_MCAST); 4367 stats->ifHCInBroadcastPkts += 4368 CSR_READ_4(sc, BGE_RX_MAC_STATS_BCAST); 4369 stats->dot3StatsFCSErrors += 4370 CSR_READ_4(sc, BGE_RX_MAC_STATS_FCS_ERRORS); 4371 stats->dot3StatsAlignmentErrors += 4372 CSR_READ_4(sc, BGE_RX_MAC_STATS_ALGIN_ERRORS); 4373 stats->xonPauseFramesReceived += 4374 CSR_READ_4(sc, BGE_RX_MAC_STATS_XON_RCVD); 4375 stats->xoffPauseFramesReceived += 4376 CSR_READ_4(sc, BGE_RX_MAC_STATS_XOFF_RCVD); 4377 stats->macControlFramesReceived += 4378 CSR_READ_4(sc, BGE_RX_MAC_STATS_CTRL_RCVD); 4379 stats->xoffStateEntered += 4380 CSR_READ_4(sc, BGE_RX_MAC_STATS_XOFF_ENTERED); 4381 stats->dot3StatsFramesTooLong += 4382 CSR_READ_4(sc, BGE_RX_MAC_STATS_FRAME_TOO_LONG); 4383 stats->etherStatsJabbers += 4384 CSR_READ_4(sc, BGE_RX_MAC_STATS_JABBERS); 4385 stats->etherStatsUndersizePkts += 4386 CSR_READ_4(sc, BGE_RX_MAC_STATS_UNDERSIZE); 4387 4388 stats->FramesDroppedDueToFilters += 4389 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_FILTDROP); 4390 stats->DmaWriteQueueFull += 4391 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_DMA_WRQ_FULL); 4392 stats->DmaWriteHighPriQueueFull += 4393 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_DMA_HPWRQ_FULL); 4394 stats->NoMoreRxBDs += 4395 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_OUT_OF_BDS); 4396 /* 4397 * XXX 4398 * Unlike other controllers, BGE_RXLP_LOCSTAT_IFIN_DROPS 4399 * counter of BCM5717, BCM5718, BCM5719 A0 and BCM5720 A0 4400 * includes number of unwanted multicast frames. This comes 4401 * from silicon bug and known workaround to get rough(not 4402 * exact) counter is to enable interrupt on MBUF low water 4403 * attention. This can be accomplished by setting 4404 * BGE_HCCMODE_ATTN bit of BGE_HCC_MODE, 4405 * BGE_BMANMODE_LOMBUF_ATTN bit of BGE_BMAN_MODE and 4406 * BGE_MODECTL_FLOWCTL_ATTN_INTR bit of BGE_MODE_CTL. 4407 * However that change would generate more interrupts and 4408 * there are still possibilities of losing multiple frames 4409 * during BGE_MODECTL_FLOWCTL_ATTN_INTR interrupt handling. 4410 * Given that the workaround still would not get correct 4411 * counter I don't think it's worth to implement it. So 4412 * ignore reading the counter on controllers that have the 4413 * silicon bug. 4414 */ 4415 if (sc->bge_asicrev != BGE_ASICREV_BCM5717 && 4416 sc->bge_chipid != BGE_CHIPID_BCM5719_A0 && 4417 sc->bge_chipid != BGE_CHIPID_BCM5720_A0) 4418 stats->InputDiscards += 4419 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_DROPS); 4420 stats->InputErrors += 4421 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_ERRORS); 4422 stats->RecvThresholdHit += 4423 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_RXTHRESH_HIT); 4424 4425 ifp->if_collisions = (u_long)stats->etherStatsCollisions; 4426 ifp->if_ierrors = (u_long)(stats->NoMoreRxBDs + stats->InputDiscards + 4427 stats->InputErrors); 4428 } 4429 4430 static void 4431 bge_stats_clear_regs(struct bge_softc *sc) 4432 { 4433 4434 CSR_READ_4(sc, BGE_TX_MAC_STATS_OCTETS); 4435 CSR_READ_4(sc, BGE_TX_MAC_STATS_COLLS); 4436 CSR_READ_4(sc, BGE_TX_MAC_STATS_XON_SENT); 4437 CSR_READ_4(sc, BGE_TX_MAC_STATS_XOFF_SENT); 4438 CSR_READ_4(sc, BGE_TX_MAC_STATS_ERRORS); 4439 CSR_READ_4(sc, BGE_TX_MAC_STATS_SINGLE_COLL); 4440 CSR_READ_4(sc, BGE_TX_MAC_STATS_MULTI_COLL); 4441 CSR_READ_4(sc, BGE_TX_MAC_STATS_DEFERRED); 4442 CSR_READ_4(sc, BGE_TX_MAC_STATS_EXCESS_COLL); 4443 CSR_READ_4(sc, BGE_TX_MAC_STATS_LATE_COLL); 4444 CSR_READ_4(sc, BGE_TX_MAC_STATS_UCAST); 4445 CSR_READ_4(sc, BGE_TX_MAC_STATS_MCAST); 4446 CSR_READ_4(sc, BGE_TX_MAC_STATS_BCAST); 4447 4448 CSR_READ_4(sc, BGE_RX_MAC_STATS_OCTESTS); 4449 CSR_READ_4(sc, BGE_RX_MAC_STATS_FRAGMENTS); 4450 CSR_READ_4(sc, BGE_RX_MAC_STATS_UCAST); 4451 CSR_READ_4(sc, BGE_RX_MAC_STATS_MCAST); 4452 CSR_READ_4(sc, BGE_RX_MAC_STATS_BCAST); 4453 CSR_READ_4(sc, BGE_RX_MAC_STATS_FCS_ERRORS); 4454 CSR_READ_4(sc, BGE_RX_MAC_STATS_ALGIN_ERRORS); 4455 CSR_READ_4(sc, BGE_RX_MAC_STATS_XON_RCVD); 4456 CSR_READ_4(sc, BGE_RX_MAC_STATS_XOFF_RCVD); 4457 CSR_READ_4(sc, BGE_RX_MAC_STATS_CTRL_RCVD); 4458 CSR_READ_4(sc, BGE_RX_MAC_STATS_XOFF_ENTERED); 4459 CSR_READ_4(sc, BGE_RX_MAC_STATS_FRAME_TOO_LONG); 4460 CSR_READ_4(sc, BGE_RX_MAC_STATS_JABBERS); 4461 CSR_READ_4(sc, BGE_RX_MAC_STATS_UNDERSIZE); 4462 4463 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_FILTDROP); 4464 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_DMA_WRQ_FULL); 4465 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_DMA_HPWRQ_FULL); 4466 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_OUT_OF_BDS); 4467 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_DROPS); 4468 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_IFIN_ERRORS); 4469 CSR_READ_4(sc, BGE_RXLP_LOCSTAT_RXTHRESH_HIT); 4470 } 4471 4472 static void 4473 bge_stats_update(struct bge_softc *sc) 4474 { 4475 struct ifnet *ifp; 4476 bus_size_t stats; 4477 uint32_t cnt; /* current register value */ 4478 4479 ifp = sc->bge_ifp; 4480 4481 stats = BGE_MEMWIN_START + BGE_STATS_BLOCK; 4482 4483 #define READ_STAT(sc, stats, stat) \ 4484 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat)) 4485 4486 cnt = READ_STAT(sc, stats, txstats.etherStatsCollisions.bge_addr_lo); 4487 ifp->if_collisions += (uint32_t)(cnt - sc->bge_tx_collisions); 4488 sc->bge_tx_collisions = cnt; 4489 4490 cnt = READ_STAT(sc, stats, nicNoMoreRxBDs.bge_addr_lo); 4491 ifp->if_ierrors += (uint32_t)(cnt - sc->bge_rx_nobds); 4492 sc->bge_rx_nobds = cnt; 4493 cnt = READ_STAT(sc, stats, ifInErrors.bge_addr_lo); 4494 ifp->if_ierrors += (uint32_t)(cnt - sc->bge_rx_inerrs); 4495 sc->bge_rx_inerrs = cnt; 4496 cnt = READ_STAT(sc, stats, ifInDiscards.bge_addr_lo); 4497 ifp->if_ierrors += (uint32_t)(cnt - sc->bge_rx_discards); 4498 sc->bge_rx_discards = cnt; 4499 4500 cnt = READ_STAT(sc, stats, txstats.ifOutDiscards.bge_addr_lo); 4501 ifp->if_oerrors += (uint32_t)(cnt - sc->bge_tx_discards); 4502 sc->bge_tx_discards = cnt; 4503 4504 #undef READ_STAT 4505 } 4506 4507 /* 4508 * Pad outbound frame to ETHER_MIN_NOPAD for an unusual reason. 4509 * The bge hardware will pad out Tx runts to ETHER_MIN_NOPAD, 4510 * but when such padded frames employ the bge IP/TCP checksum offload, 4511 * the hardware checksum assist gives incorrect results (possibly 4512 * from incorporating its own padding into the UDP/TCP checksum; who knows). 4513 * If we pad such runts with zeros, the onboard checksum comes out correct. 4514 */ 4515 static __inline int 4516 bge_cksum_pad(struct mbuf *m) 4517 { 4518 int padlen = ETHER_MIN_NOPAD - m->m_pkthdr.len; 4519 struct mbuf *last; 4520 4521 /* If there's only the packet-header and we can pad there, use it. */ 4522 if (m->m_pkthdr.len == m->m_len && M_WRITABLE(m) && 4523 M_TRAILINGSPACE(m) >= padlen) { 4524 last = m; 4525 } else { 4526 /* 4527 * Walk packet chain to find last mbuf. We will either 4528 * pad there, or append a new mbuf and pad it. 4529 */ 4530 for (last = m; last->m_next != NULL; last = last->m_next); 4531 if (!(M_WRITABLE(last) && M_TRAILINGSPACE(last) >= padlen)) { 4532 /* Allocate new empty mbuf, pad it. Compact later. */ 4533 struct mbuf *n; 4534 4535 MGET(n, M_DONTWAIT, MT_DATA); 4536 if (n == NULL) 4537 return (ENOBUFS); 4538 n->m_len = 0; 4539 last->m_next = n; 4540 last = n; 4541 } 4542 } 4543 4544 /* Now zero the pad area, to avoid the bge cksum-assist bug. */ 4545 memset(mtod(last, caddr_t) + last->m_len, 0, padlen); 4546 last->m_len += padlen; 4547 m->m_pkthdr.len += padlen; 4548 4549 return (0); 4550 } 4551 4552 static struct mbuf * 4553 bge_check_short_dma(struct mbuf *m) 4554 { 4555 struct mbuf *n; 4556 int found; 4557 4558 /* 4559 * If device receive two back-to-back send BDs with less than 4560 * or equal to 8 total bytes then the device may hang. The two 4561 * back-to-back send BDs must in the same frame for this failure 4562 * to occur. Scan mbuf chains and see whether two back-to-back 4563 * send BDs are there. If this is the case, allocate new mbuf 4564 * and copy the frame to workaround the silicon bug. 4565 */ 4566 for (n = m, found = 0; n != NULL; n = n->m_next) { 4567 if (n->m_len < 8) { 4568 found++; 4569 if (found > 1) 4570 break; 4571 continue; 4572 } 4573 found = 0; 4574 } 4575 4576 if (found > 1) { 4577 n = m_defrag(m, M_DONTWAIT); 4578 if (n == NULL) 4579 m_freem(m); 4580 } else 4581 n = m; 4582 return (n); 4583 } 4584 4585 static struct mbuf * 4586 bge_setup_tso(struct bge_softc *sc, struct mbuf *m, uint16_t *mss, 4587 uint16_t *flags) 4588 { 4589 struct ip *ip; 4590 struct tcphdr *tcp; 4591 struct mbuf *n; 4592 uint16_t hlen; 4593 uint32_t poff; 4594 4595 if (M_WRITABLE(m) == 0) { 4596 /* Get a writable copy. */ 4597 n = m_dup(m, M_DONTWAIT); 4598 m_freem(m); 4599 if (n == NULL) 4600 return (NULL); 4601 m = n; 4602 } 4603 m = m_pullup(m, sizeof(struct ether_header) + sizeof(struct ip)); 4604 if (m == NULL) 4605 return (NULL); 4606 ip = (struct ip *)(mtod(m, char *) + sizeof(struct ether_header)); 4607 poff = sizeof(struct ether_header) + (ip->ip_hl << 2); 4608 m = m_pullup(m, poff + sizeof(struct tcphdr)); 4609 if (m == NULL) 4610 return (NULL); 4611 tcp = (struct tcphdr *)(mtod(m, char *) + poff); 4612 m = m_pullup(m, poff + (tcp->th_off << 2)); 4613 if (m == NULL) 4614 return (NULL); 4615 /* 4616 * It seems controller doesn't modify IP length and TCP pseudo 4617 * checksum. These checksum computed by upper stack should be 0. 4618 */ 4619 *mss = m->m_pkthdr.tso_segsz; 4620 ip = (struct ip *)(mtod(m, char *) + sizeof(struct ether_header)); 4621 ip->ip_sum = 0; 4622 ip->ip_len = htons(*mss + (ip->ip_hl << 2) + (tcp->th_off << 2)); 4623 /* Clear pseudo checksum computed by TCP stack. */ 4624 tcp = (struct tcphdr *)(mtod(m, char *) + poff); 4625 tcp->th_sum = 0; 4626 /* 4627 * Broadcom controllers uses different descriptor format for 4628 * TSO depending on ASIC revision. Due to TSO-capable firmware 4629 * license issue and lower performance of firmware based TSO 4630 * we only support hardware based TSO. 4631 */ 4632 /* Calculate header length, incl. TCP/IP options, in 32 bit units. */ 4633 hlen = ((ip->ip_hl << 2) + (tcp->th_off << 2)) >> 2; 4634 if (sc->bge_flags & BGE_FLAG_TSO3) { 4635 /* 4636 * For BCM5717 and newer controllers, hardware based TSO 4637 * uses the 14 lower bits of the bge_mss field to store the 4638 * MSS and the upper 2 bits to store the lowest 2 bits of 4639 * the IP/TCP header length. The upper 6 bits of the header 4640 * length are stored in the bge_flags[14:10,4] field. Jumbo 4641 * frames are supported. 4642 */ 4643 *mss |= ((hlen & 0x3) << 14); 4644 *flags |= ((hlen & 0xF8) << 7) | ((hlen & 0x4) << 2); 4645 } else { 4646 /* 4647 * For BCM5755 and newer controllers, hardware based TSO uses 4648 * the lower 11 bits to store the MSS and the upper 5 bits to 4649 * store the IP/TCP header length. Jumbo frames are not 4650 * supported. 4651 */ 4652 *mss |= (hlen << 11); 4653 } 4654 return (m); 4655 } 4656 4657 /* 4658 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data 4659 * pointers to descriptors. 4660 */ 4661 static int 4662 bge_encap(struct bge_softc *sc, struct mbuf **m_head, uint32_t *txidx) 4663 { 4664 bus_dma_segment_t segs[BGE_NSEG_NEW]; 4665 bus_dmamap_t map; 4666 struct bge_tx_bd *d; 4667 struct mbuf *m = *m_head; 4668 uint32_t idx = *txidx; 4669 uint16_t csum_flags, mss, vlan_tag; 4670 int nsegs, i, error; 4671 4672 csum_flags = 0; 4673 mss = 0; 4674 vlan_tag = 0; 4675 if ((sc->bge_flags & BGE_FLAG_SHORT_DMA_BUG) != 0 && 4676 m->m_next != NULL) { 4677 *m_head = bge_check_short_dma(m); 4678 if (*m_head == NULL) 4679 return (ENOBUFS); 4680 m = *m_head; 4681 } 4682 if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 4683 *m_head = m = bge_setup_tso(sc, m, &mss, &csum_flags); 4684 if (*m_head == NULL) 4685 return (ENOBUFS); 4686 csum_flags |= BGE_TXBDFLAG_CPU_PRE_DMA | 4687 BGE_TXBDFLAG_CPU_POST_DMA; 4688 } else if ((m->m_pkthdr.csum_flags & sc->bge_csum_features) != 0) { 4689 if (m->m_pkthdr.csum_flags & CSUM_IP) 4690 csum_flags |= BGE_TXBDFLAG_IP_CSUM; 4691 if (m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP)) { 4692 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM; 4693 if (m->m_pkthdr.len < ETHER_MIN_NOPAD && 4694 (error = bge_cksum_pad(m)) != 0) { 4695 m_freem(m); 4696 *m_head = NULL; 4697 return (error); 4698 } 4699 } 4700 if (m->m_flags & M_LASTFRAG) 4701 csum_flags |= BGE_TXBDFLAG_IP_FRAG_END; 4702 else if (m->m_flags & M_FRAG) 4703 csum_flags |= BGE_TXBDFLAG_IP_FRAG; 4704 } 4705 4706 if ((m->m_pkthdr.csum_flags & CSUM_TSO) == 0) { 4707 if (sc->bge_flags & BGE_FLAG_JUMBO_FRAME && 4708 m->m_pkthdr.len > ETHER_MAX_LEN) 4709 csum_flags |= BGE_TXBDFLAG_JUMBO_FRAME; 4710 if (sc->bge_forced_collapse > 0 && 4711 (sc->bge_flags & BGE_FLAG_PCIE) != 0 && m->m_next != NULL) { 4712 /* 4713 * Forcedly collapse mbuf chains to overcome hardware 4714 * limitation which only support a single outstanding 4715 * DMA read operation. 4716 */ 4717 if (sc->bge_forced_collapse == 1) 4718 m = m_defrag(m, M_DONTWAIT); 4719 else 4720 m = m_collapse(m, M_DONTWAIT, 4721 sc->bge_forced_collapse); 4722 if (m == NULL) 4723 m = *m_head; 4724 *m_head = m; 4725 } 4726 } 4727 4728 map = sc->bge_cdata.bge_tx_dmamap[idx]; 4729 error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_tx_mtag, map, m, segs, 4730 &nsegs, BUS_DMA_NOWAIT); 4731 if (error == EFBIG) { 4732 m = m_collapse(m, M_DONTWAIT, BGE_NSEG_NEW); 4733 if (m == NULL) { 4734 m_freem(*m_head); 4735 *m_head = NULL; 4736 return (ENOBUFS); 4737 } 4738 *m_head = m; 4739 error = bus_dmamap_load_mbuf_sg(sc->bge_cdata.bge_tx_mtag, map, 4740 m, segs, &nsegs, BUS_DMA_NOWAIT); 4741 if (error) { 4742 m_freem(m); 4743 *m_head = NULL; 4744 return (error); 4745 } 4746 } else if (error != 0) 4747 return (error); 4748 4749 /* Check if we have enough free send BDs. */ 4750 if (sc->bge_txcnt + nsegs >= BGE_TX_RING_CNT) { 4751 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag, map); 4752 return (ENOBUFS); 4753 } 4754 4755 bus_dmamap_sync(sc->bge_cdata.bge_tx_mtag, map, BUS_DMASYNC_PREWRITE); 4756 4757 if (m->m_flags & M_VLANTAG) { 4758 csum_flags |= BGE_TXBDFLAG_VLAN_TAG; 4759 vlan_tag = m->m_pkthdr.ether_vtag; 4760 } 4761 for (i = 0; ; i++) { 4762 d = &sc->bge_ldata.bge_tx_ring[idx]; 4763 d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr); 4764 d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr); 4765 d->bge_len = segs[i].ds_len; 4766 d->bge_flags = csum_flags; 4767 d->bge_vlan_tag = vlan_tag; 4768 d->bge_mss = mss; 4769 if (i == nsegs - 1) 4770 break; 4771 BGE_INC(idx, BGE_TX_RING_CNT); 4772 } 4773 4774 /* Mark the last segment as end of packet... */ 4775 d->bge_flags |= BGE_TXBDFLAG_END; 4776 4777 /* 4778 * Insure that the map for this transmission 4779 * is placed at the array index of the last descriptor 4780 * in this chain. 4781 */ 4782 sc->bge_cdata.bge_tx_dmamap[*txidx] = sc->bge_cdata.bge_tx_dmamap[idx]; 4783 sc->bge_cdata.bge_tx_dmamap[idx] = map; 4784 sc->bge_cdata.bge_tx_chain[idx] = m; 4785 sc->bge_txcnt += nsegs; 4786 4787 BGE_INC(idx, BGE_TX_RING_CNT); 4788 *txidx = idx; 4789 4790 return (0); 4791 } 4792 4793 /* 4794 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 4795 * to the mbuf data regions directly in the transmit descriptors. 4796 */ 4797 static void 4798 bge_start_locked(struct ifnet *ifp) 4799 { 4800 struct bge_softc *sc; 4801 struct mbuf *m_head; 4802 uint32_t prodidx; 4803 int count; 4804 4805 sc = ifp->if_softc; 4806 BGE_LOCK_ASSERT(sc); 4807 4808 if (!sc->bge_link || 4809 (ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 4810 IFF_DRV_RUNNING) 4811 return; 4812 4813 prodidx = sc->bge_tx_prodidx; 4814 4815 for (count = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd);) { 4816 if (sc->bge_txcnt > BGE_TX_RING_CNT - 16) { 4817 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 4818 break; 4819 } 4820 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); 4821 if (m_head == NULL) 4822 break; 4823 4824 /* 4825 * XXX 4826 * The code inside the if() block is never reached since we 4827 * must mark CSUM_IP_FRAGS in our if_hwassist to start getting 4828 * requests to checksum TCP/UDP in a fragmented packet. 4829 * 4830 * XXX 4831 * safety overkill. If this is a fragmented packet chain 4832 * with delayed TCP/UDP checksums, then only encapsulate 4833 * it if we have enough descriptors to handle the entire 4834 * chain at once. 4835 * (paranoia -- may not actually be needed) 4836 */ 4837 if (m_head->m_flags & M_FIRSTFRAG && 4838 m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) { 4839 if ((BGE_TX_RING_CNT - sc->bge_txcnt) < 4840 m_head->m_pkthdr.csum_data + 16) { 4841 IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 4842 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 4843 break; 4844 } 4845 } 4846 4847 /* 4848 * Pack the data into the transmit ring. If we 4849 * don't have room, set the OACTIVE flag and wait 4850 * for the NIC to drain the ring. 4851 */ 4852 if (bge_encap(sc, &m_head, &prodidx)) { 4853 if (m_head == NULL) 4854 break; 4855 IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 4856 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 4857 break; 4858 } 4859 ++count; 4860 4861 /* 4862 * If there's a BPF listener, bounce a copy of this frame 4863 * to him. 4864 */ 4865 #ifdef ETHER_BPF_MTAP 4866 ETHER_BPF_MTAP(ifp, m_head); 4867 #else 4868 BPF_MTAP(ifp, m_head); 4869 #endif 4870 } 4871 4872 if (count > 0) { 4873 bus_dmamap_sync(sc->bge_cdata.bge_tx_ring_tag, 4874 sc->bge_cdata.bge_tx_ring_map, BUS_DMASYNC_PREWRITE); 4875 /* Transmit. */ 4876 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); 4877 /* 5700 b2 errata */ 4878 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) 4879 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); 4880 4881 sc->bge_tx_prodidx = prodidx; 4882 4883 /* 4884 * Set a timeout in case the chip goes out to lunch. 4885 */ 4886 sc->bge_timer = 5; 4887 } 4888 } 4889 4890 /* 4891 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 4892 * to the mbuf data regions directly in the transmit descriptors. 4893 */ 4894 static void 4895 bge_start(struct ifnet *ifp) 4896 { 4897 struct bge_softc *sc; 4898 4899 sc = ifp->if_softc; 4900 BGE_LOCK(sc); 4901 bge_start_locked(ifp); 4902 BGE_UNLOCK(sc); 4903 } 4904 4905 static void 4906 bge_init_locked(struct bge_softc *sc) 4907 { 4908 struct ifnet *ifp; 4909 uint16_t *m; 4910 uint32_t mode; 4911 4912 BGE_LOCK_ASSERT(sc); 4913 4914 ifp = sc->bge_ifp; 4915 4916 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 4917 return; 4918 4919 /* Cancel pending I/O and flush buffers. */ 4920 bge_stop(sc); 4921 4922 bge_stop_fw(sc); 4923 bge_sig_pre_reset(sc, BGE_RESET_START); 4924 bge_reset(sc); 4925 bge_sig_legacy(sc, BGE_RESET_START); 4926 bge_sig_post_reset(sc, BGE_RESET_START); 4927 4928 bge_chipinit(sc); 4929 4930 /* 4931 * Init the various state machines, ring 4932 * control blocks and firmware. 4933 */ 4934 if (bge_blockinit(sc)) { 4935 device_printf(sc->bge_dev, "initialization failure\n"); 4936 return; 4937 } 4938 4939 ifp = sc->bge_ifp; 4940 4941 /* Specify MTU. */ 4942 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu + 4943 ETHER_HDR_LEN + ETHER_CRC_LEN + 4944 (ifp->if_capenable & IFCAP_VLAN_MTU ? ETHER_VLAN_ENCAP_LEN : 0)); 4945 4946 /* Load our MAC address. */ 4947 m = (uint16_t *)IF_LLADDR(sc->bge_ifp); 4948 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0])); 4949 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2])); 4950 4951 /* Program promiscuous mode. */ 4952 bge_setpromisc(sc); 4953 4954 /* Program multicast filter. */ 4955 bge_setmulti(sc); 4956 4957 /* Program VLAN tag stripping. */ 4958 bge_setvlan(sc); 4959 4960 /* Override UDP checksum offloading. */ 4961 if (sc->bge_forced_udpcsum == 0) 4962 sc->bge_csum_features &= ~CSUM_UDP; 4963 else 4964 sc->bge_csum_features |= CSUM_UDP; 4965 if (ifp->if_capabilities & IFCAP_TXCSUM && 4966 ifp->if_capenable & IFCAP_TXCSUM) { 4967 ifp->if_hwassist &= ~(BGE_CSUM_FEATURES | CSUM_UDP); 4968 ifp->if_hwassist |= sc->bge_csum_features; 4969 } 4970 4971 /* Init RX ring. */ 4972 if (bge_init_rx_ring_std(sc) != 0) { 4973 device_printf(sc->bge_dev, "no memory for std Rx buffers.\n"); 4974 bge_stop(sc); 4975 return; 4976 } 4977 4978 /* 4979 * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's 4980 * memory to insure that the chip has in fact read the first 4981 * entry of the ring. 4982 */ 4983 if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) { 4984 uint32_t v, i; 4985 for (i = 0; i < 10; i++) { 4986 DELAY(20); 4987 v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8); 4988 if (v == (MCLBYTES - ETHER_ALIGN)) 4989 break; 4990 } 4991 if (i == 10) 4992 device_printf (sc->bge_dev, 4993 "5705 A0 chip failed to load RX ring\n"); 4994 } 4995 4996 /* Init jumbo RX ring. */ 4997 if (BGE_IS_JUMBO_CAPABLE(sc) && 4998 ifp->if_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN > 4999 (MCLBYTES - ETHER_ALIGN)) { 5000 if (bge_init_rx_ring_jumbo(sc) != 0) { 5001 device_printf(sc->bge_dev, 5002 "no memory for jumbo Rx buffers.\n"); 5003 bge_stop(sc); 5004 return; 5005 } 5006 } 5007 5008 /* Init our RX return ring index. */ 5009 sc->bge_rx_saved_considx = 0; 5010 5011 /* Init our RX/TX stat counters. */ 5012 sc->bge_rx_discards = sc->bge_tx_discards = sc->bge_tx_collisions = 0; 5013 5014 /* Init TX ring. */ 5015 bge_init_tx_ring(sc); 5016 5017 /* Enable TX MAC state machine lockup fix. */ 5018 mode = CSR_READ_4(sc, BGE_TX_MODE); 5019 if (BGE_IS_5755_PLUS(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5906) 5020 mode |= BGE_TXMODE_MBUF_LOCKUP_FIX; 5021 if (sc->bge_asicrev == BGE_ASICREV_BCM5720) { 5022 mode &= ~(BGE_TXMODE_JMB_FRM_LEN | BGE_TXMODE_CNT_DN_MODE); 5023 mode |= CSR_READ_4(sc, BGE_TX_MODE) & 5024 (BGE_TXMODE_JMB_FRM_LEN | BGE_TXMODE_CNT_DN_MODE); 5025 } 5026 /* Turn on transmitter. */ 5027 CSR_WRITE_4(sc, BGE_TX_MODE, mode | BGE_TXMODE_ENABLE); 5028 5029 /* Turn on receiver. */ 5030 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); 5031 5032 /* 5033 * Set the number of good frames to receive after RX MBUF 5034 * Low Watermark has been reached. After the RX MAC receives 5035 * this number of frames, it will drop subsequent incoming 5036 * frames until the MBUF High Watermark is reached. 5037 */ 5038 if (sc->bge_asicrev == BGE_ASICREV_BCM57765) 5039 CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 1); 5040 else 5041 CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 2); 5042 5043 /* Clear MAC statistics. */ 5044 if (BGE_IS_5705_PLUS(sc)) 5045 bge_stats_clear_regs(sc); 5046 5047 /* Tell firmware we're alive. */ 5048 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 5049 5050 #ifdef DEVICE_POLLING 5051 /* Disable interrupts if we are polling. */ 5052 if (ifp->if_capenable & IFCAP_POLLING) { 5053 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, 5054 BGE_PCIMISCCTL_MASK_PCI_INTR); 5055 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1); 5056 } else 5057 #endif 5058 5059 /* Enable host interrupts. */ 5060 { 5061 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA); 5062 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); 5063 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0); 5064 } 5065 5066 bge_ifmedia_upd_locked(ifp); 5067 5068 ifp->if_drv_flags |= IFF_DRV_RUNNING; 5069 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 5070 5071 callout_reset(&sc->bge_stat_ch, hz, bge_tick, sc); 5072 } 5073 5074 static void 5075 bge_init(void *xsc) 5076 { 5077 struct bge_softc *sc = xsc; 5078 5079 BGE_LOCK(sc); 5080 bge_init_locked(sc); 5081 BGE_UNLOCK(sc); 5082 } 5083 5084 /* 5085 * Set media options. 5086 */ 5087 static int 5088 bge_ifmedia_upd(struct ifnet *ifp) 5089 { 5090 struct bge_softc *sc = ifp->if_softc; 5091 int res; 5092 5093 BGE_LOCK(sc); 5094 res = bge_ifmedia_upd_locked(ifp); 5095 BGE_UNLOCK(sc); 5096 5097 return (res); 5098 } 5099 5100 static int 5101 bge_ifmedia_upd_locked(struct ifnet *ifp) 5102 { 5103 struct bge_softc *sc = ifp->if_softc; 5104 struct mii_data *mii; 5105 struct mii_softc *miisc; 5106 struct ifmedia *ifm; 5107 5108 BGE_LOCK_ASSERT(sc); 5109 5110 ifm = &sc->bge_ifmedia; 5111 5112 /* If this is a 1000baseX NIC, enable the TBI port. */ 5113 if (sc->bge_flags & BGE_FLAG_TBI) { 5114 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 5115 return (EINVAL); 5116 switch(IFM_SUBTYPE(ifm->ifm_media)) { 5117 case IFM_AUTO: 5118 /* 5119 * The BCM5704 ASIC appears to have a special 5120 * mechanism for programming the autoneg 5121 * advertisement registers in TBI mode. 5122 */ 5123 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) { 5124 uint32_t sgdig; 5125 sgdig = CSR_READ_4(sc, BGE_SGDIG_STS); 5126 if (sgdig & BGE_SGDIGSTS_DONE) { 5127 CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0); 5128 sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG); 5129 sgdig |= BGE_SGDIGCFG_AUTO | 5130 BGE_SGDIGCFG_PAUSE_CAP | 5131 BGE_SGDIGCFG_ASYM_PAUSE; 5132 CSR_WRITE_4(sc, BGE_SGDIG_CFG, 5133 sgdig | BGE_SGDIGCFG_SEND); 5134 DELAY(5); 5135 CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig); 5136 } 5137 } 5138 break; 5139 case IFM_1000_SX: 5140 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { 5141 BGE_CLRBIT(sc, BGE_MAC_MODE, 5142 BGE_MACMODE_HALF_DUPLEX); 5143 } else { 5144 BGE_SETBIT(sc, BGE_MAC_MODE, 5145 BGE_MACMODE_HALF_DUPLEX); 5146 } 5147 break; 5148 default: 5149 return (EINVAL); 5150 } 5151 return (0); 5152 } 5153 5154 sc->bge_link_evt++; 5155 mii = device_get_softc(sc->bge_miibus); 5156 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 5157 PHY_RESET(miisc); 5158 mii_mediachg(mii); 5159 5160 /* 5161 * Force an interrupt so that we will call bge_link_upd 5162 * if needed and clear any pending link state attention. 5163 * Without this we are not getting any further interrupts 5164 * for link state changes and thus will not UP the link and 5165 * not be able to send in bge_start_locked. The only 5166 * way to get things working was to receive a packet and 5167 * get an RX intr. 5168 * bge_tick should help for fiber cards and we might not 5169 * need to do this here if BGE_FLAG_TBI is set but as 5170 * we poll for fiber anyway it should not harm. 5171 */ 5172 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 || 5173 sc->bge_flags & BGE_FLAG_5788) 5174 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET); 5175 else 5176 BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW); 5177 5178 return (0); 5179 } 5180 5181 /* 5182 * Report current media status. 5183 */ 5184 static void 5185 bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 5186 { 5187 struct bge_softc *sc = ifp->if_softc; 5188 struct mii_data *mii; 5189 5190 BGE_LOCK(sc); 5191 5192 if (sc->bge_flags & BGE_FLAG_TBI) { 5193 ifmr->ifm_status = IFM_AVALID; 5194 ifmr->ifm_active = IFM_ETHER; 5195 if (CSR_READ_4(sc, BGE_MAC_STS) & 5196 BGE_MACSTAT_TBI_PCS_SYNCHED) 5197 ifmr->ifm_status |= IFM_ACTIVE; 5198 else { 5199 ifmr->ifm_active |= IFM_NONE; 5200 BGE_UNLOCK(sc); 5201 return; 5202 } 5203 ifmr->ifm_active |= IFM_1000_SX; 5204 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX) 5205 ifmr->ifm_active |= IFM_HDX; 5206 else 5207 ifmr->ifm_active |= IFM_FDX; 5208 BGE_UNLOCK(sc); 5209 return; 5210 } 5211 5212 mii = device_get_softc(sc->bge_miibus); 5213 mii_pollstat(mii); 5214 ifmr->ifm_active = mii->mii_media_active; 5215 ifmr->ifm_status = mii->mii_media_status; 5216 5217 BGE_UNLOCK(sc); 5218 } 5219 5220 static int 5221 bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 5222 { 5223 struct bge_softc *sc = ifp->if_softc; 5224 struct ifreq *ifr = (struct ifreq *) data; 5225 struct mii_data *mii; 5226 int flags, mask, error = 0; 5227 5228 switch (command) { 5229 case SIOCSIFMTU: 5230 if (BGE_IS_JUMBO_CAPABLE(sc) || 5231 (sc->bge_flags & BGE_FLAG_JUMBO_STD)) { 5232 if (ifr->ifr_mtu < ETHERMIN || 5233 ifr->ifr_mtu > BGE_JUMBO_MTU) { 5234 error = EINVAL; 5235 break; 5236 } 5237 } else if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) { 5238 error = EINVAL; 5239 break; 5240 } 5241 BGE_LOCK(sc); 5242 if (ifp->if_mtu != ifr->ifr_mtu) { 5243 ifp->if_mtu = ifr->ifr_mtu; 5244 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 5245 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 5246 bge_init_locked(sc); 5247 } 5248 } 5249 BGE_UNLOCK(sc); 5250 break; 5251 case SIOCSIFFLAGS: 5252 BGE_LOCK(sc); 5253 if (ifp->if_flags & IFF_UP) { 5254 /* 5255 * If only the state of the PROMISC flag changed, 5256 * then just use the 'set promisc mode' command 5257 * instead of reinitializing the entire NIC. Doing 5258 * a full re-init means reloading the firmware and 5259 * waiting for it to start up, which may take a 5260 * second or two. Similarly for ALLMULTI. 5261 */ 5262 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 5263 flags = ifp->if_flags ^ sc->bge_if_flags; 5264 if (flags & IFF_PROMISC) 5265 bge_setpromisc(sc); 5266 if (flags & IFF_ALLMULTI) 5267 bge_setmulti(sc); 5268 } else 5269 bge_init_locked(sc); 5270 } else { 5271 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 5272 bge_stop(sc); 5273 } 5274 } 5275 sc->bge_if_flags = ifp->if_flags; 5276 BGE_UNLOCK(sc); 5277 error = 0; 5278 break; 5279 case SIOCADDMULTI: 5280 case SIOCDELMULTI: 5281 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 5282 BGE_LOCK(sc); 5283 bge_setmulti(sc); 5284 BGE_UNLOCK(sc); 5285 error = 0; 5286 } 5287 break; 5288 case SIOCSIFMEDIA: 5289 case SIOCGIFMEDIA: 5290 if (sc->bge_flags & BGE_FLAG_TBI) { 5291 error = ifmedia_ioctl(ifp, ifr, 5292 &sc->bge_ifmedia, command); 5293 } else { 5294 mii = device_get_softc(sc->bge_miibus); 5295 error = ifmedia_ioctl(ifp, ifr, 5296 &mii->mii_media, command); 5297 } 5298 break; 5299 case SIOCSIFCAP: 5300 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 5301 #ifdef DEVICE_POLLING 5302 if (mask & IFCAP_POLLING) { 5303 if (ifr->ifr_reqcap & IFCAP_POLLING) { 5304 error = ether_poll_register(bge_poll, ifp); 5305 if (error) 5306 return (error); 5307 BGE_LOCK(sc); 5308 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, 5309 BGE_PCIMISCCTL_MASK_PCI_INTR); 5310 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1); 5311 ifp->if_capenable |= IFCAP_POLLING; 5312 BGE_UNLOCK(sc); 5313 } else { 5314 error = ether_poll_deregister(ifp); 5315 /* Enable interrupt even in error case */ 5316 BGE_LOCK(sc); 5317 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, 5318 BGE_PCIMISCCTL_MASK_PCI_INTR); 5319 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0); 5320 ifp->if_capenable &= ~IFCAP_POLLING; 5321 BGE_UNLOCK(sc); 5322 } 5323 } 5324 #endif 5325 if ((mask & IFCAP_TXCSUM) != 0 && 5326 (ifp->if_capabilities & IFCAP_TXCSUM) != 0) { 5327 ifp->if_capenable ^= IFCAP_TXCSUM; 5328 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 5329 ifp->if_hwassist |= sc->bge_csum_features; 5330 else 5331 ifp->if_hwassist &= ~sc->bge_csum_features; 5332 } 5333 5334 if ((mask & IFCAP_RXCSUM) != 0 && 5335 (ifp->if_capabilities & IFCAP_RXCSUM) != 0) 5336 ifp->if_capenable ^= IFCAP_RXCSUM; 5337 5338 if ((mask & IFCAP_TSO4) != 0 && 5339 (ifp->if_capabilities & IFCAP_TSO4) != 0) { 5340 ifp->if_capenable ^= IFCAP_TSO4; 5341 if ((ifp->if_capenable & IFCAP_TSO4) != 0) 5342 ifp->if_hwassist |= CSUM_TSO; 5343 else 5344 ifp->if_hwassist &= ~CSUM_TSO; 5345 } 5346 5347 if (mask & IFCAP_VLAN_MTU) { 5348 ifp->if_capenable ^= IFCAP_VLAN_MTU; 5349 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 5350 bge_init(sc); 5351 } 5352 5353 if ((mask & IFCAP_VLAN_HWTSO) != 0 && 5354 (ifp->if_capabilities & IFCAP_VLAN_HWTSO) != 0) 5355 ifp->if_capenable ^= IFCAP_VLAN_HWTSO; 5356 if ((mask & IFCAP_VLAN_HWTAGGING) != 0 && 5357 (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) != 0) { 5358 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 5359 if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) == 0) 5360 ifp->if_capenable &= ~IFCAP_VLAN_HWTSO; 5361 BGE_LOCK(sc); 5362 bge_setvlan(sc); 5363 BGE_UNLOCK(sc); 5364 } 5365 #ifdef VLAN_CAPABILITIES 5366 VLAN_CAPABILITIES(ifp); 5367 #endif 5368 break; 5369 default: 5370 error = ether_ioctl(ifp, command, data); 5371 break; 5372 } 5373 5374 return (error); 5375 } 5376 5377 static void 5378 bge_watchdog(struct bge_softc *sc) 5379 { 5380 struct ifnet *ifp; 5381 5382 BGE_LOCK_ASSERT(sc); 5383 5384 if (sc->bge_timer == 0 || --sc->bge_timer) 5385 return; 5386 5387 ifp = sc->bge_ifp; 5388 5389 if_printf(ifp, "watchdog timeout -- resetting\n"); 5390 5391 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 5392 bge_init_locked(sc); 5393 5394 ifp->if_oerrors++; 5395 } 5396 5397 static void 5398 bge_stop_block(struct bge_softc *sc, bus_size_t reg, uint32_t bit) 5399 { 5400 int i; 5401 5402 BGE_CLRBIT(sc, reg, bit); 5403 5404 for (i = 0; i < BGE_TIMEOUT; i++) { 5405 if ((CSR_READ_4(sc, reg) & bit) == 0) 5406 return; 5407 DELAY(100); 5408 } 5409 } 5410 5411 /* 5412 * Stop the adapter and free any mbufs allocated to the 5413 * RX and TX lists. 5414 */ 5415 static void 5416 bge_stop(struct bge_softc *sc) 5417 { 5418 struct ifnet *ifp; 5419 5420 BGE_LOCK_ASSERT(sc); 5421 5422 ifp = sc->bge_ifp; 5423 5424 callout_stop(&sc->bge_stat_ch); 5425 5426 /* Disable host interrupts. */ 5427 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); 5428 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1); 5429 5430 /* 5431 * Tell firmware we're shutting down. 5432 */ 5433 bge_stop_fw(sc); 5434 bge_sig_pre_reset(sc, BGE_RESET_STOP); 5435 5436 /* 5437 * Disable all of the receiver blocks. 5438 */ 5439 bge_stop_block(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); 5440 bge_stop_block(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); 5441 bge_stop_block(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); 5442 if (BGE_IS_5700_FAMILY(sc)) 5443 bge_stop_block(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); 5444 bge_stop_block(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE); 5445 bge_stop_block(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); 5446 bge_stop_block(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE); 5447 5448 /* 5449 * Disable all of the transmit blocks. 5450 */ 5451 bge_stop_block(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); 5452 bge_stop_block(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); 5453 bge_stop_block(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); 5454 bge_stop_block(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE); 5455 bge_stop_block(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); 5456 if (BGE_IS_5700_FAMILY(sc)) 5457 bge_stop_block(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); 5458 bge_stop_block(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); 5459 5460 /* 5461 * Shut down all of the memory managers and related 5462 * state machines. 5463 */ 5464 bge_stop_block(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); 5465 bge_stop_block(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE); 5466 if (BGE_IS_5700_FAMILY(sc)) 5467 bge_stop_block(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); 5468 5469 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); 5470 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); 5471 if (!(BGE_IS_5705_PLUS(sc))) { 5472 BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE); 5473 BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); 5474 } 5475 /* Update MAC statistics. */ 5476 if (BGE_IS_5705_PLUS(sc)) 5477 bge_stats_update_regs(sc); 5478 5479 bge_reset(sc); 5480 bge_sig_legacy(sc, BGE_RESET_STOP); 5481 bge_sig_post_reset(sc, BGE_RESET_STOP); 5482 5483 /* 5484 * Keep the ASF firmware running if up. 5485 */ 5486 if (sc->bge_asf_mode & ASF_STACKUP) 5487 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 5488 else 5489 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 5490 5491 /* Free the RX lists. */ 5492 bge_free_rx_ring_std(sc); 5493 5494 /* Free jumbo RX list. */ 5495 if (BGE_IS_JUMBO_CAPABLE(sc)) 5496 bge_free_rx_ring_jumbo(sc); 5497 5498 /* Free TX buffers. */ 5499 bge_free_tx_ring(sc); 5500 5501 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET; 5502 5503 /* Clear MAC's link state (PHY may still have link UP). */ 5504 if (bootverbose && sc->bge_link) 5505 if_printf(sc->bge_ifp, "link DOWN\n"); 5506 sc->bge_link = 0; 5507 5508 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 5509 } 5510 5511 /* 5512 * Stop all chip I/O so that the kernel's probe routines don't 5513 * get confused by errant DMAs when rebooting. 5514 */ 5515 static int 5516 bge_shutdown(device_t dev) 5517 { 5518 struct bge_softc *sc; 5519 5520 sc = device_get_softc(dev); 5521 BGE_LOCK(sc); 5522 bge_stop(sc); 5523 bge_reset(sc); 5524 BGE_UNLOCK(sc); 5525 5526 return (0); 5527 } 5528 5529 static int 5530 bge_suspend(device_t dev) 5531 { 5532 struct bge_softc *sc; 5533 5534 sc = device_get_softc(dev); 5535 BGE_LOCK(sc); 5536 bge_stop(sc); 5537 BGE_UNLOCK(sc); 5538 5539 return (0); 5540 } 5541 5542 static int 5543 bge_resume(device_t dev) 5544 { 5545 struct bge_softc *sc; 5546 struct ifnet *ifp; 5547 5548 sc = device_get_softc(dev); 5549 BGE_LOCK(sc); 5550 ifp = sc->bge_ifp; 5551 if (ifp->if_flags & IFF_UP) { 5552 bge_init_locked(sc); 5553 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 5554 bge_start_locked(ifp); 5555 } 5556 BGE_UNLOCK(sc); 5557 5558 return (0); 5559 } 5560 5561 static void 5562 bge_link_upd(struct bge_softc *sc) 5563 { 5564 struct mii_data *mii; 5565 uint32_t link, status; 5566 5567 BGE_LOCK_ASSERT(sc); 5568 5569 /* Clear 'pending link event' flag. */ 5570 sc->bge_link_evt = 0; 5571 5572 /* 5573 * Process link state changes. 5574 * Grrr. The link status word in the status block does 5575 * not work correctly on the BCM5700 rev AX and BX chips, 5576 * according to all available information. Hence, we have 5577 * to enable MII interrupts in order to properly obtain 5578 * async link changes. Unfortunately, this also means that 5579 * we have to read the MAC status register to detect link 5580 * changes, thereby adding an additional register access to 5581 * the interrupt handler. 5582 * 5583 * XXX: perhaps link state detection procedure used for 5584 * BGE_CHIPID_BCM5700_B2 can be used for others BCM5700 revisions. 5585 */ 5586 5587 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && 5588 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) { 5589 status = CSR_READ_4(sc, BGE_MAC_STS); 5590 if (status & BGE_MACSTAT_MI_INTERRUPT) { 5591 mii = device_get_softc(sc->bge_miibus); 5592 mii_pollstat(mii); 5593 if (!sc->bge_link && 5594 mii->mii_media_status & IFM_ACTIVE && 5595 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 5596 sc->bge_link++; 5597 if (bootverbose) 5598 if_printf(sc->bge_ifp, "link UP\n"); 5599 } else if (sc->bge_link && 5600 (!(mii->mii_media_status & IFM_ACTIVE) || 5601 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) { 5602 sc->bge_link = 0; 5603 if (bootverbose) 5604 if_printf(sc->bge_ifp, "link DOWN\n"); 5605 } 5606 5607 /* Clear the interrupt. */ 5608 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, 5609 BGE_EVTENB_MI_INTERRUPT); 5610 bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR); 5611 bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, 5612 BRGPHY_INTRS); 5613 } 5614 return; 5615 } 5616 5617 if (sc->bge_flags & BGE_FLAG_TBI) { 5618 status = CSR_READ_4(sc, BGE_MAC_STS); 5619 if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) { 5620 if (!sc->bge_link) { 5621 sc->bge_link++; 5622 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) 5623 BGE_CLRBIT(sc, BGE_MAC_MODE, 5624 BGE_MACMODE_TBI_SEND_CFGS); 5625 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF); 5626 if (bootverbose) 5627 if_printf(sc->bge_ifp, "link UP\n"); 5628 if_link_state_change(sc->bge_ifp, 5629 LINK_STATE_UP); 5630 } 5631 } else if (sc->bge_link) { 5632 sc->bge_link = 0; 5633 if (bootverbose) 5634 if_printf(sc->bge_ifp, "link DOWN\n"); 5635 if_link_state_change(sc->bge_ifp, LINK_STATE_DOWN); 5636 } 5637 } else if ((sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) != 0) { 5638 /* 5639 * Some broken BCM chips have BGE_STATFLAG_LINKSTATE_CHANGED bit 5640 * in status word always set. Workaround this bug by reading 5641 * PHY link status directly. 5642 */ 5643 link = (CSR_READ_4(sc, BGE_MI_STS) & BGE_MISTS_LINK) ? 1 : 0; 5644 5645 if (link != sc->bge_link || 5646 sc->bge_asicrev == BGE_ASICREV_BCM5700) { 5647 mii = device_get_softc(sc->bge_miibus); 5648 mii_pollstat(mii); 5649 if (!sc->bge_link && 5650 mii->mii_media_status & IFM_ACTIVE && 5651 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 5652 sc->bge_link++; 5653 if (bootverbose) 5654 if_printf(sc->bge_ifp, "link UP\n"); 5655 } else if (sc->bge_link && 5656 (!(mii->mii_media_status & IFM_ACTIVE) || 5657 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) { 5658 sc->bge_link = 0; 5659 if (bootverbose) 5660 if_printf(sc->bge_ifp, "link DOWN\n"); 5661 } 5662 } 5663 } else { 5664 /* 5665 * For controllers that call mii_tick, we have to poll 5666 * link status. 5667 */ 5668 mii = device_get_softc(sc->bge_miibus); 5669 mii_pollstat(mii); 5670 bge_miibus_statchg(sc->bge_dev); 5671 } 5672 5673 /* Clear the attention. */ 5674 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED | 5675 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE | 5676 BGE_MACSTAT_LINK_CHANGED); 5677 } 5678 5679 static void 5680 bge_add_sysctls(struct bge_softc *sc) 5681 { 5682 struct sysctl_ctx_list *ctx; 5683 struct sysctl_oid_list *children; 5684 char tn[32]; 5685 int unit; 5686 5687 ctx = device_get_sysctl_ctx(sc->bge_dev); 5688 children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->bge_dev)); 5689 5690 #ifdef BGE_REGISTER_DEBUG 5691 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "debug_info", 5692 CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_debug_info, "I", 5693 "Debug Information"); 5694 5695 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reg_read", 5696 CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_reg_read, "I", 5697 "Register Read"); 5698 5699 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "mem_read", 5700 CTLTYPE_INT | CTLFLAG_RW, sc, 0, bge_sysctl_mem_read, "I", 5701 "Memory Read"); 5702 5703 #endif 5704 5705 unit = device_get_unit(sc->bge_dev); 5706 /* 5707 * A common design characteristic for many Broadcom client controllers 5708 * is that they only support a single outstanding DMA read operation 5709 * on the PCIe bus. This means that it will take twice as long to fetch 5710 * a TX frame that is split into header and payload buffers as it does 5711 * to fetch a single, contiguous TX frame (2 reads vs. 1 read). For 5712 * these controllers, coalescing buffers to reduce the number of memory 5713 * reads is effective way to get maximum performance(about 940Mbps). 5714 * Without collapsing TX buffers the maximum TCP bulk transfer 5715 * performance is about 850Mbps. However forcing coalescing mbufs 5716 * consumes a lot of CPU cycles, so leave it off by default. 5717 */ 5718 sc->bge_forced_collapse = 0; 5719 snprintf(tn, sizeof(tn), "dev.bge.%d.forced_collapse", unit); 5720 TUNABLE_INT_FETCH(tn, &sc->bge_forced_collapse); 5721 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "forced_collapse", 5722 CTLFLAG_RW, &sc->bge_forced_collapse, 0, 5723 "Number of fragmented TX buffers of a frame allowed before " 5724 "forced collapsing"); 5725 5726 sc->bge_msi = 1; 5727 snprintf(tn, sizeof(tn), "dev.bge.%d.msi", unit); 5728 TUNABLE_INT_FETCH(tn, &sc->bge_msi); 5729 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "msi", 5730 CTLFLAG_RD, &sc->bge_msi, 0, "Enable MSI"); 5731 5732 /* 5733 * It seems all Broadcom controllers have a bug that can generate UDP 5734 * datagrams with checksum value 0 when TX UDP checksum offloading is 5735 * enabled. Generating UDP checksum value 0 is RFC 768 violation. 5736 * Even though the probability of generating such UDP datagrams is 5737 * low, I don't want to see FreeBSD boxes to inject such datagrams 5738 * into network so disable UDP checksum offloading by default. Users 5739 * still override this behavior by setting a sysctl variable, 5740 * dev.bge.0.forced_udpcsum. 5741 */ 5742 sc->bge_forced_udpcsum = 0; 5743 snprintf(tn, sizeof(tn), "dev.bge.%d.bge_forced_udpcsum", unit); 5744 TUNABLE_INT_FETCH(tn, &sc->bge_forced_udpcsum); 5745 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "forced_udpcsum", 5746 CTLFLAG_RW, &sc->bge_forced_udpcsum, 0, 5747 "Enable UDP checksum offloading even if controller can " 5748 "generate UDP checksum value 0"); 5749 5750 if (BGE_IS_5705_PLUS(sc)) 5751 bge_add_sysctl_stats_regs(sc, ctx, children); 5752 else 5753 bge_add_sysctl_stats(sc, ctx, children); 5754 } 5755 5756 #define BGE_SYSCTL_STAT(sc, ctx, desc, parent, node, oid) \ 5757 SYSCTL_ADD_PROC(ctx, parent, OID_AUTO, oid, CTLTYPE_UINT|CTLFLAG_RD, \ 5758 sc, offsetof(struct bge_stats, node), bge_sysctl_stats, "IU", \ 5759 desc) 5760 5761 static void 5762 bge_add_sysctl_stats(struct bge_softc *sc, struct sysctl_ctx_list *ctx, 5763 struct sysctl_oid_list *parent) 5764 { 5765 struct sysctl_oid *tree; 5766 struct sysctl_oid_list *children, *schildren; 5767 5768 tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "stats", CTLFLAG_RD, 5769 NULL, "BGE Statistics"); 5770 schildren = children = SYSCTL_CHILDREN(tree); 5771 BGE_SYSCTL_STAT(sc, ctx, "Frames Dropped Due To Filters", 5772 children, COSFramesDroppedDueToFilters, 5773 "FramesDroppedDueToFilters"); 5774 BGE_SYSCTL_STAT(sc, ctx, "NIC DMA Write Queue Full", 5775 children, nicDmaWriteQueueFull, "DmaWriteQueueFull"); 5776 BGE_SYSCTL_STAT(sc, ctx, "NIC DMA Write High Priority Queue Full", 5777 children, nicDmaWriteHighPriQueueFull, "DmaWriteHighPriQueueFull"); 5778 BGE_SYSCTL_STAT(sc, ctx, "NIC No More RX Buffer Descriptors", 5779 children, nicNoMoreRxBDs, "NoMoreRxBDs"); 5780 BGE_SYSCTL_STAT(sc, ctx, "Discarded Input Frames", 5781 children, ifInDiscards, "InputDiscards"); 5782 BGE_SYSCTL_STAT(sc, ctx, "Input Errors", 5783 children, ifInErrors, "InputErrors"); 5784 BGE_SYSCTL_STAT(sc, ctx, "NIC Recv Threshold Hit", 5785 children, nicRecvThresholdHit, "RecvThresholdHit"); 5786 BGE_SYSCTL_STAT(sc, ctx, "NIC DMA Read Queue Full", 5787 children, nicDmaReadQueueFull, "DmaReadQueueFull"); 5788 BGE_SYSCTL_STAT(sc, ctx, "NIC DMA Read High Priority Queue Full", 5789 children, nicDmaReadHighPriQueueFull, "DmaReadHighPriQueueFull"); 5790 BGE_SYSCTL_STAT(sc, ctx, "NIC Send Data Complete Queue Full", 5791 children, nicSendDataCompQueueFull, "SendDataCompQueueFull"); 5792 BGE_SYSCTL_STAT(sc, ctx, "NIC Ring Set Send Producer Index", 5793 children, nicRingSetSendProdIndex, "RingSetSendProdIndex"); 5794 BGE_SYSCTL_STAT(sc, ctx, "NIC Ring Status Update", 5795 children, nicRingStatusUpdate, "RingStatusUpdate"); 5796 BGE_SYSCTL_STAT(sc, ctx, "NIC Interrupts", 5797 children, nicInterrupts, "Interrupts"); 5798 BGE_SYSCTL_STAT(sc, ctx, "NIC Avoided Interrupts", 5799 children, nicAvoidedInterrupts, "AvoidedInterrupts"); 5800 BGE_SYSCTL_STAT(sc, ctx, "NIC Send Threshold Hit", 5801 children, nicSendThresholdHit, "SendThresholdHit"); 5802 5803 tree = SYSCTL_ADD_NODE(ctx, schildren, OID_AUTO, "rx", CTLFLAG_RD, 5804 NULL, "BGE RX Statistics"); 5805 children = SYSCTL_CHILDREN(tree); 5806 BGE_SYSCTL_STAT(sc, ctx, "Inbound Octets", 5807 children, rxstats.ifHCInOctets, "ifHCInOctets"); 5808 BGE_SYSCTL_STAT(sc, ctx, "Fragments", 5809 children, rxstats.etherStatsFragments, "Fragments"); 5810 BGE_SYSCTL_STAT(sc, ctx, "Inbound Unicast Packets", 5811 children, rxstats.ifHCInUcastPkts, "UnicastPkts"); 5812 BGE_SYSCTL_STAT(sc, ctx, "Inbound Multicast Packets", 5813 children, rxstats.ifHCInMulticastPkts, "MulticastPkts"); 5814 BGE_SYSCTL_STAT(sc, ctx, "FCS Errors", 5815 children, rxstats.dot3StatsFCSErrors, "FCSErrors"); 5816 BGE_SYSCTL_STAT(sc, ctx, "Alignment Errors", 5817 children, rxstats.dot3StatsAlignmentErrors, "AlignmentErrors"); 5818 BGE_SYSCTL_STAT(sc, ctx, "XON Pause Frames Received", 5819 children, rxstats.xonPauseFramesReceived, "xonPauseFramesReceived"); 5820 BGE_SYSCTL_STAT(sc, ctx, "XOFF Pause Frames Received", 5821 children, rxstats.xoffPauseFramesReceived, 5822 "xoffPauseFramesReceived"); 5823 BGE_SYSCTL_STAT(sc, ctx, "MAC Control Frames Received", 5824 children, rxstats.macControlFramesReceived, 5825 "ControlFramesReceived"); 5826 BGE_SYSCTL_STAT(sc, ctx, "XOFF State Entered", 5827 children, rxstats.xoffStateEntered, "xoffStateEntered"); 5828 BGE_SYSCTL_STAT(sc, ctx, "Frames Too Long", 5829 children, rxstats.dot3StatsFramesTooLong, "FramesTooLong"); 5830 BGE_SYSCTL_STAT(sc, ctx, "Jabbers", 5831 children, rxstats.etherStatsJabbers, "Jabbers"); 5832 BGE_SYSCTL_STAT(sc, ctx, "Undersized Packets", 5833 children, rxstats.etherStatsUndersizePkts, "UndersizePkts"); 5834 BGE_SYSCTL_STAT(sc, ctx, "Inbound Range Length Errors", 5835 children, rxstats.inRangeLengthError, "inRangeLengthError"); 5836 BGE_SYSCTL_STAT(sc, ctx, "Outbound Range Length Errors", 5837 children, rxstats.outRangeLengthError, "outRangeLengthError"); 5838 5839 tree = SYSCTL_ADD_NODE(ctx, schildren, OID_AUTO, "tx", CTLFLAG_RD, 5840 NULL, "BGE TX Statistics"); 5841 children = SYSCTL_CHILDREN(tree); 5842 BGE_SYSCTL_STAT(sc, ctx, "Outbound Octets", 5843 children, txstats.ifHCOutOctets, "ifHCOutOctets"); 5844 BGE_SYSCTL_STAT(sc, ctx, "TX Collisions", 5845 children, txstats.etherStatsCollisions, "Collisions"); 5846 BGE_SYSCTL_STAT(sc, ctx, "XON Sent", 5847 children, txstats.outXonSent, "XonSent"); 5848 BGE_SYSCTL_STAT(sc, ctx, "XOFF Sent", 5849 children, txstats.outXoffSent, "XoffSent"); 5850 BGE_SYSCTL_STAT(sc, ctx, "Flow Control Done", 5851 children, txstats.flowControlDone, "flowControlDone"); 5852 BGE_SYSCTL_STAT(sc, ctx, "Internal MAC TX errors", 5853 children, txstats.dot3StatsInternalMacTransmitErrors, 5854 "InternalMacTransmitErrors"); 5855 BGE_SYSCTL_STAT(sc, ctx, "Single Collision Frames", 5856 children, txstats.dot3StatsSingleCollisionFrames, 5857 "SingleCollisionFrames"); 5858 BGE_SYSCTL_STAT(sc, ctx, "Multiple Collision Frames", 5859 children, txstats.dot3StatsMultipleCollisionFrames, 5860 "MultipleCollisionFrames"); 5861 BGE_SYSCTL_STAT(sc, ctx, "Deferred Transmissions", 5862 children, txstats.dot3StatsDeferredTransmissions, 5863 "DeferredTransmissions"); 5864 BGE_SYSCTL_STAT(sc, ctx, "Excessive Collisions", 5865 children, txstats.dot3StatsExcessiveCollisions, 5866 "ExcessiveCollisions"); 5867 BGE_SYSCTL_STAT(sc, ctx, "Late Collisions", 5868 children, txstats.dot3StatsLateCollisions, 5869 "LateCollisions"); 5870 BGE_SYSCTL_STAT(sc, ctx, "Outbound Unicast Packets", 5871 children, txstats.ifHCOutUcastPkts, "UnicastPkts"); 5872 BGE_SYSCTL_STAT(sc, ctx, "Outbound Multicast Packets", 5873 children, txstats.ifHCOutMulticastPkts, "MulticastPkts"); 5874 BGE_SYSCTL_STAT(sc, ctx, "Outbound Broadcast Packets", 5875 children, txstats.ifHCOutBroadcastPkts, "BroadcastPkts"); 5876 BGE_SYSCTL_STAT(sc, ctx, "Carrier Sense Errors", 5877 children, txstats.dot3StatsCarrierSenseErrors, 5878 "CarrierSenseErrors"); 5879 BGE_SYSCTL_STAT(sc, ctx, "Outbound Discards", 5880 children, txstats.ifOutDiscards, "Discards"); 5881 BGE_SYSCTL_STAT(sc, ctx, "Outbound Errors", 5882 children, txstats.ifOutErrors, "Errors"); 5883 } 5884 5885 #undef BGE_SYSCTL_STAT 5886 5887 #define BGE_SYSCTL_STAT_ADD64(c, h, n, p, d) \ 5888 SYSCTL_ADD_UQUAD(c, h, OID_AUTO, n, CTLFLAG_RD, p, d) 5889 5890 static void 5891 bge_add_sysctl_stats_regs(struct bge_softc *sc, struct sysctl_ctx_list *ctx, 5892 struct sysctl_oid_list *parent) 5893 { 5894 struct sysctl_oid *tree; 5895 struct sysctl_oid_list *child, *schild; 5896 struct bge_mac_stats *stats; 5897 5898 stats = &sc->bge_mac_stats; 5899 tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "stats", CTLFLAG_RD, 5900 NULL, "BGE Statistics"); 5901 schild = child = SYSCTL_CHILDREN(tree); 5902 BGE_SYSCTL_STAT_ADD64(ctx, child, "FramesDroppedDueToFilters", 5903 &stats->FramesDroppedDueToFilters, "Frames Dropped Due to Filters"); 5904 BGE_SYSCTL_STAT_ADD64(ctx, child, "DmaWriteQueueFull", 5905 &stats->DmaWriteQueueFull, "NIC DMA Write Queue Full"); 5906 BGE_SYSCTL_STAT_ADD64(ctx, child, "DmaWriteHighPriQueueFull", 5907 &stats->DmaWriteHighPriQueueFull, 5908 "NIC DMA Write High Priority Queue Full"); 5909 BGE_SYSCTL_STAT_ADD64(ctx, child, "NoMoreRxBDs", 5910 &stats->NoMoreRxBDs, "NIC No More RX Buffer Descriptors"); 5911 BGE_SYSCTL_STAT_ADD64(ctx, child, "InputDiscards", 5912 &stats->InputDiscards, "Discarded Input Frames"); 5913 BGE_SYSCTL_STAT_ADD64(ctx, child, "InputErrors", 5914 &stats->InputErrors, "Input Errors"); 5915 BGE_SYSCTL_STAT_ADD64(ctx, child, "RecvThresholdHit", 5916 &stats->RecvThresholdHit, "NIC Recv Threshold Hit"); 5917 5918 tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "rx", CTLFLAG_RD, 5919 NULL, "BGE RX Statistics"); 5920 child = SYSCTL_CHILDREN(tree); 5921 BGE_SYSCTL_STAT_ADD64(ctx, child, "ifHCInOctets", 5922 &stats->ifHCInOctets, "Inbound Octets"); 5923 BGE_SYSCTL_STAT_ADD64(ctx, child, "Fragments", 5924 &stats->etherStatsFragments, "Fragments"); 5925 BGE_SYSCTL_STAT_ADD64(ctx, child, "UnicastPkts", 5926 &stats->ifHCInUcastPkts, "Inbound Unicast Packets"); 5927 BGE_SYSCTL_STAT_ADD64(ctx, child, "MulticastPkts", 5928 &stats->ifHCInMulticastPkts, "Inbound Multicast Packets"); 5929 BGE_SYSCTL_STAT_ADD64(ctx, child, "BroadcastPkts", 5930 &stats->ifHCInBroadcastPkts, "Inbound Broadcast Packets"); 5931 BGE_SYSCTL_STAT_ADD64(ctx, child, "FCSErrors", 5932 &stats->dot3StatsFCSErrors, "FCS Errors"); 5933 BGE_SYSCTL_STAT_ADD64(ctx, child, "AlignmentErrors", 5934 &stats->dot3StatsAlignmentErrors, "Alignment Errors"); 5935 BGE_SYSCTL_STAT_ADD64(ctx, child, "xonPauseFramesReceived", 5936 &stats->xonPauseFramesReceived, "XON Pause Frames Received"); 5937 BGE_SYSCTL_STAT_ADD64(ctx, child, "xoffPauseFramesReceived", 5938 &stats->xoffPauseFramesReceived, "XOFF Pause Frames Received"); 5939 BGE_SYSCTL_STAT_ADD64(ctx, child, "ControlFramesReceived", 5940 &stats->macControlFramesReceived, "MAC Control Frames Received"); 5941 BGE_SYSCTL_STAT_ADD64(ctx, child, "xoffStateEntered", 5942 &stats->xoffStateEntered, "XOFF State Entered"); 5943 BGE_SYSCTL_STAT_ADD64(ctx, child, "FramesTooLong", 5944 &stats->dot3StatsFramesTooLong, "Frames Too Long"); 5945 BGE_SYSCTL_STAT_ADD64(ctx, child, "Jabbers", 5946 &stats->etherStatsJabbers, "Jabbers"); 5947 BGE_SYSCTL_STAT_ADD64(ctx, child, "UndersizePkts", 5948 &stats->etherStatsUndersizePkts, "Undersized Packets"); 5949 5950 tree = SYSCTL_ADD_NODE(ctx, schild, OID_AUTO, "tx", CTLFLAG_RD, 5951 NULL, "BGE TX Statistics"); 5952 child = SYSCTL_CHILDREN(tree); 5953 BGE_SYSCTL_STAT_ADD64(ctx, child, "ifHCOutOctets", 5954 &stats->ifHCOutOctets, "Outbound Octets"); 5955 BGE_SYSCTL_STAT_ADD64(ctx, child, "Collisions", 5956 &stats->etherStatsCollisions, "TX Collisions"); 5957 BGE_SYSCTL_STAT_ADD64(ctx, child, "XonSent", 5958 &stats->outXonSent, "XON Sent"); 5959 BGE_SYSCTL_STAT_ADD64(ctx, child, "XoffSent", 5960 &stats->outXoffSent, "XOFF Sent"); 5961 BGE_SYSCTL_STAT_ADD64(ctx, child, "InternalMacTransmitErrors", 5962 &stats->dot3StatsInternalMacTransmitErrors, 5963 "Internal MAC TX Errors"); 5964 BGE_SYSCTL_STAT_ADD64(ctx, child, "SingleCollisionFrames", 5965 &stats->dot3StatsSingleCollisionFrames, "Single Collision Frames"); 5966 BGE_SYSCTL_STAT_ADD64(ctx, child, "MultipleCollisionFrames", 5967 &stats->dot3StatsMultipleCollisionFrames, 5968 "Multiple Collision Frames"); 5969 BGE_SYSCTL_STAT_ADD64(ctx, child, "DeferredTransmissions", 5970 &stats->dot3StatsDeferredTransmissions, "Deferred Transmissions"); 5971 BGE_SYSCTL_STAT_ADD64(ctx, child, "ExcessiveCollisions", 5972 &stats->dot3StatsExcessiveCollisions, "Excessive Collisions"); 5973 BGE_SYSCTL_STAT_ADD64(ctx, child, "LateCollisions", 5974 &stats->dot3StatsLateCollisions, "Late Collisions"); 5975 BGE_SYSCTL_STAT_ADD64(ctx, child, "UnicastPkts", 5976 &stats->ifHCOutUcastPkts, "Outbound Unicast Packets"); 5977 BGE_SYSCTL_STAT_ADD64(ctx, child, "MulticastPkts", 5978 &stats->ifHCOutMulticastPkts, "Outbound Multicast Packets"); 5979 BGE_SYSCTL_STAT_ADD64(ctx, child, "BroadcastPkts", 5980 &stats->ifHCOutBroadcastPkts, "Outbound Broadcast Packets"); 5981 } 5982 5983 #undef BGE_SYSCTL_STAT_ADD64 5984 5985 static int 5986 bge_sysctl_stats(SYSCTL_HANDLER_ARGS) 5987 { 5988 struct bge_softc *sc; 5989 uint32_t result; 5990 int offset; 5991 5992 sc = (struct bge_softc *)arg1; 5993 offset = arg2; 5994 result = CSR_READ_4(sc, BGE_MEMWIN_START + BGE_STATS_BLOCK + offset + 5995 offsetof(bge_hostaddr, bge_addr_lo)); 5996 return (sysctl_handle_int(oidp, &result, 0, req)); 5997 } 5998 5999 #ifdef BGE_REGISTER_DEBUG 6000 static int 6001 bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS) 6002 { 6003 struct bge_softc *sc; 6004 uint16_t *sbdata; 6005 int error, result, sbsz; 6006 int i, j; 6007 6008 result = -1; 6009 error = sysctl_handle_int(oidp, &result, 0, req); 6010 if (error || (req->newptr == NULL)) 6011 return (error); 6012 6013 if (result == 1) { 6014 sc = (struct bge_softc *)arg1; 6015 6016 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 && 6017 sc->bge_chipid != BGE_CHIPID_BCM5700_C0) 6018 sbsz = BGE_STATUS_BLK_SZ; 6019 else 6020 sbsz = 32; 6021 sbdata = (uint16_t *)sc->bge_ldata.bge_status_block; 6022 printf("Status Block:\n"); 6023 BGE_LOCK(sc); 6024 bus_dmamap_sync(sc->bge_cdata.bge_status_tag, 6025 sc->bge_cdata.bge_status_map, 6026 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 6027 for (i = 0x0; i < sbsz / sizeof(uint16_t); ) { 6028 printf("%06x:", i); 6029 for (j = 0; j < 8; j++) 6030 printf(" %04x", sbdata[i++]); 6031 printf("\n"); 6032 } 6033 6034 printf("Registers:\n"); 6035 for (i = 0x800; i < 0xA00; ) { 6036 printf("%06x:", i); 6037 for (j = 0; j < 8; j++) { 6038 printf(" %08x", CSR_READ_4(sc, i)); 6039 i += 4; 6040 } 6041 printf("\n"); 6042 } 6043 BGE_UNLOCK(sc); 6044 6045 printf("Hardware Flags:\n"); 6046 if (BGE_IS_5717_PLUS(sc)) 6047 printf(" - 5717 Plus\n"); 6048 if (BGE_IS_5755_PLUS(sc)) 6049 printf(" - 5755 Plus\n"); 6050 if (BGE_IS_575X_PLUS(sc)) 6051 printf(" - 575X Plus\n"); 6052 if (BGE_IS_5705_PLUS(sc)) 6053 printf(" - 5705 Plus\n"); 6054 if (BGE_IS_5714_FAMILY(sc)) 6055 printf(" - 5714 Family\n"); 6056 if (BGE_IS_5700_FAMILY(sc)) 6057 printf(" - 5700 Family\n"); 6058 if (sc->bge_flags & BGE_FLAG_JUMBO) 6059 printf(" - Supports Jumbo Frames\n"); 6060 if (sc->bge_flags & BGE_FLAG_PCIX) 6061 printf(" - PCI-X Bus\n"); 6062 if (sc->bge_flags & BGE_FLAG_PCIE) 6063 printf(" - PCI Express Bus\n"); 6064 if (sc->bge_phy_flags & BGE_PHY_NO_3LED) 6065 printf(" - No 3 LEDs\n"); 6066 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) 6067 printf(" - RX Alignment Bug\n"); 6068 } 6069 6070 return (error); 6071 } 6072 6073 static int 6074 bge_sysctl_reg_read(SYSCTL_HANDLER_ARGS) 6075 { 6076 struct bge_softc *sc; 6077 int error; 6078 uint16_t result; 6079 uint32_t val; 6080 6081 result = -1; 6082 error = sysctl_handle_int(oidp, &result, 0, req); 6083 if (error || (req->newptr == NULL)) 6084 return (error); 6085 6086 if (result < 0x8000) { 6087 sc = (struct bge_softc *)arg1; 6088 val = CSR_READ_4(sc, result); 6089 printf("reg 0x%06X = 0x%08X\n", result, val); 6090 } 6091 6092 return (error); 6093 } 6094 6095 static int 6096 bge_sysctl_mem_read(SYSCTL_HANDLER_ARGS) 6097 { 6098 struct bge_softc *sc; 6099 int error; 6100 uint16_t result; 6101 uint32_t val; 6102 6103 result = -1; 6104 error = sysctl_handle_int(oidp, &result, 0, req); 6105 if (error || (req->newptr == NULL)) 6106 return (error); 6107 6108 if (result < 0x8000) { 6109 sc = (struct bge_softc *)arg1; 6110 val = bge_readmem_ind(sc, result); 6111 printf("mem 0x%06X = 0x%08X\n", result, val); 6112 } 6113 6114 return (error); 6115 } 6116 #endif 6117 6118 static int 6119 bge_get_eaddr_fw(struct bge_softc *sc, uint8_t ether_addr[]) 6120 { 6121 6122 if (sc->bge_flags & BGE_FLAG_EADDR) 6123 return (1); 6124 6125 #ifdef __sparc64__ 6126 OF_getetheraddr(sc->bge_dev, ether_addr); 6127 return (0); 6128 #endif 6129 return (1); 6130 } 6131 6132 static int 6133 bge_get_eaddr_mem(struct bge_softc *sc, uint8_t ether_addr[]) 6134 { 6135 uint32_t mac_addr; 6136 6137 mac_addr = bge_readmem_ind(sc, BGE_SRAM_MAC_ADDR_HIGH_MB); 6138 if ((mac_addr >> 16) == 0x484b) { 6139 ether_addr[0] = (uint8_t)(mac_addr >> 8); 6140 ether_addr[1] = (uint8_t)mac_addr; 6141 mac_addr = bge_readmem_ind(sc, BGE_SRAM_MAC_ADDR_LOW_MB); 6142 ether_addr[2] = (uint8_t)(mac_addr >> 24); 6143 ether_addr[3] = (uint8_t)(mac_addr >> 16); 6144 ether_addr[4] = (uint8_t)(mac_addr >> 8); 6145 ether_addr[5] = (uint8_t)mac_addr; 6146 return (0); 6147 } 6148 return (1); 6149 } 6150 6151 static int 6152 bge_get_eaddr_nvram(struct bge_softc *sc, uint8_t ether_addr[]) 6153 { 6154 int mac_offset = BGE_EE_MAC_OFFSET; 6155 6156 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) 6157 mac_offset = BGE_EE_MAC_OFFSET_5906; 6158 6159 return (bge_read_nvram(sc, ether_addr, mac_offset + 2, 6160 ETHER_ADDR_LEN)); 6161 } 6162 6163 static int 6164 bge_get_eaddr_eeprom(struct bge_softc *sc, uint8_t ether_addr[]) 6165 { 6166 6167 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) 6168 return (1); 6169 6170 return (bge_read_eeprom(sc, ether_addr, BGE_EE_MAC_OFFSET + 2, 6171 ETHER_ADDR_LEN)); 6172 } 6173 6174 static int 6175 bge_get_eaddr(struct bge_softc *sc, uint8_t eaddr[]) 6176 { 6177 static const bge_eaddr_fcn_t bge_eaddr_funcs[] = { 6178 /* NOTE: Order is critical */ 6179 bge_get_eaddr_fw, 6180 bge_get_eaddr_mem, 6181 bge_get_eaddr_nvram, 6182 bge_get_eaddr_eeprom, 6183 NULL 6184 }; 6185 const bge_eaddr_fcn_t *func; 6186 6187 for (func = bge_eaddr_funcs; *func != NULL; ++func) { 6188 if ((*func)(sc, eaddr) == 0) 6189 break; 6190 } 6191 return (*func == NULL ? ENXIO : 0); 6192 } 6193