| 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 | * $FreeBSD: src/sys/dev/bge/if_bge.c,v 1.3.2.29 2003/12/01 21:06:59 ambrisko Exp $ |
| 34 | * $DragonFly: src/sys/dev/netif/bge/if_bge.c,v 1.31 2005/05/21 09:05:05 joerg Exp $ |
| 35 | * |
| 36 | */ |
| 37 | |
| 38 | /* |
| 39 | * Broadcom BCM570x family gigabit ethernet driver for FreeBSD. |
| 40 | * |
| 41 | * Written by Bill Paul <wpaul@windriver.com> |
| 42 | * Senior Engineer, Wind River Systems |
| 43 | */ |
| 44 | |
| 45 | /* |
| 46 | * The Broadcom BCM5700 is based on technology originally developed by |
| 47 | * Alteon Networks as part of the Tigon I and Tigon II gigabit ethernet |
| 48 | * MAC chips. The BCM5700, sometimes refered to as the Tigon III, has |
| 49 | * two on-board MIPS R4000 CPUs and can have as much as 16MB of external |
| 50 | * SSRAM. The BCM5700 supports TCP, UDP and IP checksum offload, jumbo |
| 51 | * frames, highly configurable RX filtering, and 16 RX and TX queues |
| 52 | * (which, along with RX filter rules, can be used for QOS applications). |
| 53 | * Other features, such as TCP segmentation, may be available as part |
| 54 | * of value-added firmware updates. Unlike the Tigon I and Tigon II, |
| 55 | * firmware images can be stored in hardware and need not be compiled |
| 56 | * into the driver. |
| 57 | * |
| 58 | * The BCM5700 supports the PCI v2.2 and PCI-X v1.0 standards, and will |
| 59 | * function in a 32-bit/64-bit 33/66Mhz bus, or a 64-bit/133Mhz bus. |
| 60 | * |
| 61 | * The BCM5701 is a single-chip solution incorporating both the BCM5700 |
| 62 | * MAC and a BCM5401 10/100/1000 PHY. Unlike the BCM5700, the BCM5701 |
| 63 | * does not support external SSRAM. |
| 64 | * |
| 65 | * Broadcom also produces a variation of the BCM5700 under the "Altima" |
| 66 | * brand name, which is functionally similar but lacks PCI-X support. |
| 67 | * |
| 68 | * Without external SSRAM, you can only have at most 4 TX rings, |
| 69 | * and the use of the mini RX ring is disabled. This seems to imply |
| 70 | * that these features are simply not available on the BCM5701. As a |
| 71 | * result, this driver does not implement any support for the mini RX |
| 72 | * ring. |
| 73 | */ |
| 74 | |
| 75 | #include <sys/param.h> |
| 76 | #include <sys/systm.h> |
| 77 | #include <sys/sockio.h> |
| 78 | #include <sys/mbuf.h> |
| 79 | #include <sys/malloc.h> |
| 80 | #include <sys/kernel.h> |
| 81 | #include <sys/socket.h> |
| 82 | #include <sys/queue.h> |
| 83 | |
| 84 | #include <net/if.h> |
| 85 | #include <net/ifq_var.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/vlan/if_vlan_var.h> |
| 95 | |
| 96 | #include <netinet/in_systm.h> |
| 97 | #include <netinet/in.h> |
| 98 | #include <netinet/ip.h> |
| 99 | |
| 100 | #include <vm/vm.h> /* for vtophys */ |
| 101 | #include <vm/pmap.h> /* for vtophys */ |
| 102 | #include <machine/resource.h> |
| 103 | #include <sys/bus.h> |
| 104 | #include <sys/rman.h> |
| 105 | |
| 106 | #include <dev/netif/mii_layer/mii.h> |
| 107 | #include <dev/netif/mii_layer/miivar.h> |
| 108 | #include <dev/netif/mii_layer/miidevs.h> |
| 109 | #include <dev/netif/mii_layer/brgphyreg.h> |
| 110 | |
| 111 | #include <bus/pci/pcidevs.h> |
| 112 | #include <bus/pci/pcireg.h> |
| 113 | #include <bus/pci/pcivar.h> |
| 114 | |
| 115 | #include "if_bgereg.h" |
| 116 | |
| 117 | #define BGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP) |
| 118 | |
| 119 | /* "controller miibus0" required. See GENERIC if you get errors here. */ |
| 120 | #include "miibus_if.h" |
| 121 | |
| 122 | /* |
| 123 | * Various supported device vendors/types and their names. Note: the |
| 124 | * spec seems to indicate that the hardware still has Alteon's vendor |
| 125 | * ID burned into it, though it will always be overriden by the vendor |
| 126 | * ID in the EEPROM. Just to be safe, we cover all possibilities. |
| 127 | */ |
| 128 | #define BGE_DEVDESC_MAX 64 /* Maximum device description length */ |
| 129 | |
| 130 | static struct bge_type bge_devs[] = { |
| 131 | { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5700, |
| 132 | "Broadcom BCM5700 Gigabit Ethernet" }, |
| 133 | { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5700, |
| 134 | "Broadcom BCM5701 Gigabit Ethernet" }, |
| 135 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5700, |
| 136 | "Broadcom BCM5700 Gigabit Ethernet" }, |
| 137 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5701, |
| 138 | "Broadcom BCM5701 Gigabit Ethernet" }, |
| 139 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702X, |
| 140 | "Broadcom BCM5702X Gigabit Ethernet" }, |
| 141 | { PCI_VENDOR_BROADCOM, BCOM_DEVICEID_BCM5702X, |
| 142 | "Broadcom BCM5702X Gigabit Ethernet" }, |
| 143 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703X, |
| 144 | "Broadcom BCM5703X Gigabit Ethernet" }, |
| 145 | { PCI_VENDOR_BROADCOM, BCOM_DEVICEID_BCM5703X, |
| 146 | "Broadcom BCM5703X Gigabit Ethernet" }, |
| 147 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704C, |
| 148 | "Broadcom BCM5704C Dual Gigabit Ethernet" }, |
| 149 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S, |
| 150 | "Broadcom BCM5704S Dual Gigabit Ethernet" }, |
| 151 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705, |
| 152 | "Broadcom BCM5705 Gigabit Ethernet" }, |
| 153 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M, |
| 154 | "Broadcom BCM5705M Gigabit Ethernet" }, |
| 155 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705_ALT, |
| 156 | "Broadcom BCM5705M Gigabit Ethernet" }, |
| 157 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5782, |
| 158 | "Broadcom BCM5782 Gigabit Ethernet" }, |
| 159 | { PCI_VENDOR_BROADCOM, BCOM_DEVICEID_BCM5788, |
| 160 | "Broadcom BCM5788 Gigabit Ethernet" }, |
| 161 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901, |
| 162 | "Broadcom BCM5901 Fast Ethernet" }, |
| 163 | { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901A2, |
| 164 | "Broadcom BCM5901A2 Fast Ethernet" }, |
| 165 | { PCI_VENDOR_SCHNEIDERKOCH, PCI_PRODUCT_SCHNEIDERKOCH_SK_9DX1, |
| 166 | "SysKonnect Gigabit Ethernet" }, |
| 167 | { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1000, |
| 168 | "Altima AC1000 Gigabit Ethernet" }, |
| 169 | { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1001, |
| 170 | "Altima AC1002 Gigabit Ethernet" }, |
| 171 | { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC9100, |
| 172 | "Altima AC9100 Gigabit Ethernet" }, |
| 173 | { 0, 0, NULL } |
| 174 | }; |
| 175 | |
| 176 | static int bge_probe(device_t); |
| 177 | static int bge_attach(device_t); |
| 178 | static int bge_detach(device_t); |
| 179 | static void bge_release_resources(struct bge_softc *); |
| 180 | static void bge_txeof(struct bge_softc *); |
| 181 | static void bge_rxeof(struct bge_softc *); |
| 182 | |
| 183 | static void bge_tick(void *); |
| 184 | static void bge_stats_update(struct bge_softc *); |
| 185 | static void bge_stats_update_regs(struct bge_softc *); |
| 186 | static int bge_encap(struct bge_softc *, struct mbuf *, uint32_t *); |
| 187 | |
| 188 | static void bge_intr(void *); |
| 189 | static void bge_start(struct ifnet *); |
| 190 | static int bge_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *); |
| 191 | static void bge_init(void *); |
| 192 | static void bge_stop(struct bge_softc *); |
| 193 | static void bge_watchdog(struct ifnet *); |
| 194 | static void bge_shutdown(device_t); |
| 195 | static int bge_ifmedia_upd(struct ifnet *); |
| 196 | static void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *); |
| 197 | |
| 198 | static uint8_t bge_eeprom_getbyte(struct bge_softc *, uint32_t, uint8_t *); |
| 199 | static int bge_read_eeprom(struct bge_softc *, caddr_t, uint32_t, size_t); |
| 200 | |
| 201 | static uint32_t bge_crc(caddr_t); |
| 202 | static void bge_setmulti(struct bge_softc *); |
| 203 | |
| 204 | static void bge_handle_events(struct bge_softc *); |
| 205 | static int bge_alloc_jumbo_mem(struct bge_softc *); |
| 206 | static void bge_free_jumbo_mem(struct bge_softc *); |
| 207 | static void *bge_jalloc(struct bge_softc *); |
| 208 | static void bge_jfree(caddr_t, u_int); |
| 209 | static void bge_jref(caddr_t, u_int); |
| 210 | static int bge_newbuf_std(struct bge_softc *, int, struct mbuf *); |
| 211 | static int bge_newbuf_jumbo(struct bge_softc *, int, struct mbuf *); |
| 212 | static int bge_init_rx_ring_std(struct bge_softc *); |
| 213 | static void bge_free_rx_ring_std(struct bge_softc *); |
| 214 | static int bge_init_rx_ring_jumbo(struct bge_softc *); |
| 215 | static void bge_free_rx_ring_jumbo(struct bge_softc *); |
| 216 | static void bge_free_tx_ring(struct bge_softc *); |
| 217 | static int bge_init_tx_ring(struct bge_softc *); |
| 218 | |
| 219 | static int bge_chipinit(struct bge_softc *); |
| 220 | static int bge_blockinit(struct bge_softc *); |
| 221 | |
| 222 | #ifdef notdef |
| 223 | static uint8_t bge_vpd_readbyte(struct bge_softc *, uint32_t); |
| 224 | static void bge_vpd_read_res(struct bge_softc *, struct vpd_res *, uint32_t); |
| 225 | static void bge_vpd_read(struct bge_softc *); |
| 226 | #endif |
| 227 | |
| 228 | static uint32_t bge_readmem_ind(struct bge_softc *, uint32_t); |
| 229 | static void bge_writemem_ind(struct bge_softc *, uint32_t, uint32_t); |
| 230 | #ifdef notdef |
| 231 | static uint32_t bge_readreg_ind(struct bge_softc *, uint32_t); |
| 232 | #endif |
| 233 | static void bge_writereg_ind(struct bge_softc *, uint32_t, uint32_t); |
| 234 | |
| 235 | static int bge_miibus_readreg(device_t, int, int); |
| 236 | static int bge_miibus_writereg(device_t, int, int, int); |
| 237 | static void bge_miibus_statchg(device_t); |
| 238 | |
| 239 | static void bge_reset(struct bge_softc *); |
| 240 | |
| 241 | static device_method_t bge_methods[] = { |
| 242 | /* Device interface */ |
| 243 | DEVMETHOD(device_probe, bge_probe), |
| 244 | DEVMETHOD(device_attach, bge_attach), |
| 245 | DEVMETHOD(device_detach, bge_detach), |
| 246 | DEVMETHOD(device_shutdown, bge_shutdown), |
| 247 | |
| 248 | /* bus interface */ |
| 249 | DEVMETHOD(bus_print_child, bus_generic_print_child), |
| 250 | DEVMETHOD(bus_driver_added, bus_generic_driver_added), |
| 251 | |
| 252 | /* MII interface */ |
| 253 | DEVMETHOD(miibus_readreg, bge_miibus_readreg), |
| 254 | DEVMETHOD(miibus_writereg, bge_miibus_writereg), |
| 255 | DEVMETHOD(miibus_statchg, bge_miibus_statchg), |
| 256 | |
| 257 | { 0, 0 } |
| 258 | }; |
| 259 | |
| 260 | static DEFINE_CLASS_0(bge, bge_driver, bge_methods, sizeof(struct bge_softc)); |
| 261 | static devclass_t bge_devclass; |
| 262 | |
| 263 | DECLARE_DUMMY_MODULE(if_bge); |
| 264 | DRIVER_MODULE(if_bge, pci, bge_driver, bge_devclass, 0, 0); |
| 265 | DRIVER_MODULE(miibus, bge, miibus_driver, miibus_devclass, 0, 0); |
| 266 | |
| 267 | static uint32_t |
| 268 | bge_readmem_ind(struct bge_softc *sc, uint32_t off) |
| 269 | { |
| 270 | device_t dev = sc->bge_dev; |
| 271 | |
| 272 | pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4); |
| 273 | return(pci_read_config(dev, BGE_PCI_MEMWIN_DATA, 4)); |
| 274 | } |
| 275 | |
| 276 | static void |
| 277 | bge_writemem_ind(struct bge_softc *sc, uint32_t off, uint32_t val) |
| 278 | { |
| 279 | device_t dev = sc->bge_dev; |
| 280 | |
| 281 | pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4); |
| 282 | pci_write_config(dev, BGE_PCI_MEMWIN_DATA, val, 4); |
| 283 | } |
| 284 | |
| 285 | #ifdef notdef |
| 286 | static uint32_t |
| 287 | bge_readreg_ind(struct bge_softc *sc, uin32_t off) |
| 288 | { |
| 289 | device_t dev = sc->bge_dev; |
| 290 | |
| 291 | pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4); |
| 292 | return(pci_read_config(dev, BGE_PCI_REG_DATA, 4)); |
| 293 | } |
| 294 | #endif |
| 295 | |
| 296 | static void |
| 297 | bge_writereg_ind(struct bge_softc *sc, uint32_t off, uint32_t val) |
| 298 | { |
| 299 | device_t dev = sc->bge_dev; |
| 300 | |
| 301 | pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4); |
| 302 | pci_write_config(dev, BGE_PCI_REG_DATA, val, 4); |
| 303 | } |
| 304 | |
| 305 | #ifdef notdef |
| 306 | static uint8_t |
| 307 | bge_vpd_readbyte(struct bge_softc *sc, uint32_t addr) |
| 308 | { |
| 309 | device_t dev = sc->bge_dev; |
| 310 | uint32_t val; |
| 311 | int i; |
| 312 | |
| 313 | pci_write_config(dev, BGE_PCI_VPD_ADDR, addr, 2); |
| 314 | for (i = 0; i < BGE_TIMEOUT * 10; i++) { |
| 315 | DELAY(10); |
| 316 | if (pci_read_config(dev, BGE_PCI_VPD_ADDR, 2) & BGE_VPD_FLAG) |
| 317 | break; |
| 318 | } |
| 319 | |
| 320 | if (i == BGE_TIMEOUT) { |
| 321 | device_printf(sc->bge_dev, "VPD read timed out\n"); |
| 322 | return(0); |
| 323 | } |
| 324 | |
| 325 | val = pci_read_config(dev, BGE_PCI_VPD_DATA, 4); |
| 326 | |
| 327 | return((val >> ((addr % 4) * 8)) & 0xFF); |
| 328 | } |
| 329 | |
| 330 | static void |
| 331 | bge_vpd_read_res(struct bge_softc *sc, struct vpd_res *res, uint32_t addr) |
| 332 | { |
| 333 | size_t i; |
| 334 | uint8_t *ptr; |
| 335 | |
| 336 | ptr = (uint8_t *)res; |
| 337 | for (i = 0; i < sizeof(struct vpd_res); i++) |
| 338 | ptr[i] = bge_vpd_readbyte(sc, i + addr); |
| 339 | |
| 340 | return; |
| 341 | } |
| 342 | |
| 343 | static void |
| 344 | bge_vpd_read(struct bge_softc *sc) |
| 345 | { |
| 346 | int pos = 0, i; |
| 347 | struct vpd_res res; |
| 348 | |
| 349 | if (sc->bge_vpd_prodname != NULL) |
| 350 | free(sc->bge_vpd_prodname, M_DEVBUF); |
| 351 | if (sc->bge_vpd_readonly != NULL) |
| 352 | free(sc->bge_vpd_readonly, M_DEVBUF); |
| 353 | sc->bge_vpd_prodname = NULL; |
| 354 | sc->bge_vpd_readonly = NULL; |
| 355 | |
| 356 | bge_vpd_read_res(sc, &res, pos); |
| 357 | |
| 358 | if (res.vr_id != VPD_RES_ID) { |
| 359 | device_printf(sc->bge_dev, |
| 360 | "bad VPD resource id: expected %x got %x\n", |
| 361 | VPD_RES_ID, res.vr_id); |
| 362 | return; |
| 363 | } |
| 364 | |
| 365 | pos += sizeof(res); |
| 366 | sc->bge_vpd_prodname = malloc(res.vr_len + 1, M_DEVBUF, M_INTWAIT); |
| 367 | for (i = 0; i < res.vr_len; i++) |
| 368 | sc->bge_vpd_prodname[i] = bge_vpd_readbyte(sc, i + pos); |
| 369 | sc->bge_vpd_prodname[i] = '\0'; |
| 370 | pos += i; |
| 371 | |
| 372 | bge_vpd_read_res(sc, &res, pos); |
| 373 | |
| 374 | if (res.vr_id != VPD_RES_READ) { |
| 375 | device_printf(sc->bge_dev, |
| 376 | "bad VPD resource id: expected %x got %x\n", |
| 377 | VPD_RES_READ, res.vr_id); |
| 378 | return; |
| 379 | } |
| 380 | |
| 381 | pos += sizeof(res); |
| 382 | sc->bge_vpd_readonly = malloc(res.vr_len, M_DEVBUF, M_INTWAIT); |
| 383 | for (i = 0; i < res.vr_len + 1; i++) |
| 384 | sc->bge_vpd_readonly[i] = bge_vpd_readbyte(sc, i + pos); |
| 385 | } |
| 386 | #endif |
| 387 | |
| 388 | /* |
| 389 | * Read a byte of data stored in the EEPROM at address 'addr.' The |
| 390 | * BCM570x supports both the traditional bitbang interface and an |
| 391 | * auto access interface for reading the EEPROM. We use the auto |
| 392 | * access method. |
| 393 | */ |
| 394 | static uint8_t |
| 395 | bge_eeprom_getbyte(struct bge_softc *sc, uint32_t addr, uint8_t *dest) |
| 396 | { |
| 397 | int i; |
| 398 | uint32_t byte = 0; |
| 399 | |
| 400 | /* |
| 401 | * Enable use of auto EEPROM access so we can avoid |
| 402 | * having to use the bitbang method. |
| 403 | */ |
| 404 | BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM); |
| 405 | |
| 406 | /* Reset the EEPROM, load the clock period. */ |
| 407 | CSR_WRITE_4(sc, BGE_EE_ADDR, |
| 408 | BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL)); |
| 409 | DELAY(20); |
| 410 | |
| 411 | /* Issue the read EEPROM command. */ |
| 412 | CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr); |
| 413 | |
| 414 | /* Wait for completion */ |
| 415 | for(i = 0; i < BGE_TIMEOUT * 10; i++) { |
| 416 | DELAY(10); |
| 417 | if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE) |
| 418 | break; |
| 419 | } |
| 420 | |
| 421 | if (i == BGE_TIMEOUT) { |
| 422 | if_printf(&sc->arpcom.ac_if, "eeprom read timed out\n"); |
| 423 | return(0); |
| 424 | } |
| 425 | |
| 426 | /* Get result. */ |
| 427 | byte = CSR_READ_4(sc, BGE_EE_DATA); |
| 428 | |
| 429 | *dest = (byte >> ((addr % 4) * 8)) & 0xFF; |
| 430 | |
| 431 | return(0); |
| 432 | } |
| 433 | |
| 434 | /* |
| 435 | * Read a sequence of bytes from the EEPROM. |
| 436 | */ |
| 437 | static int |
| 438 | bge_read_eeprom(struct bge_softc *sc, caddr_t dest, uint32_t off, size_t len) |
| 439 | { |
| 440 | size_t i; |
| 441 | int err; |
| 442 | uint8_t byte; |
| 443 | |
| 444 | for (byte = 0, err = 0, i = 0; i < len; i++) { |
| 445 | err = bge_eeprom_getbyte(sc, off + i, &byte); |
| 446 | if (err) |
| 447 | break; |
| 448 | *(dest + i) = byte; |
| 449 | } |
| 450 | |
| 451 | return(err ? 1 : 0); |
| 452 | } |
| 453 | |
| 454 | static int |
| 455 | bge_miibus_readreg(device_t dev, int phy, int reg) |
| 456 | { |
| 457 | struct bge_softc *sc; |
| 458 | struct ifnet *ifp; |
| 459 | uint32_t val, autopoll; |
| 460 | int i; |
| 461 | |
| 462 | sc = device_get_softc(dev); |
| 463 | ifp = &sc->arpcom.ac_if; |
| 464 | |
| 465 | /* |
| 466 | * Broadcom's own driver always assumes the internal |
| 467 | * PHY is at GMII address 1. On some chips, the PHY responds |
| 468 | * to accesses at all addresses, which could cause us to |
| 469 | * bogusly attach the PHY 32 times at probe type. Always |
| 470 | * restricting the lookup to address 1 is simpler than |
| 471 | * trying to figure out which chips revisions should be |
| 472 | * special-cased. |
| 473 | */ |
| 474 | if (phy != 1) |
| 475 | return(0); |
| 476 | |
| 477 | /* Reading with autopolling on may trigger PCI errors */ |
| 478 | autopoll = CSR_READ_4(sc, BGE_MI_MODE); |
| 479 | if (autopoll & BGE_MIMODE_AUTOPOLL) { |
| 480 | BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); |
| 481 | DELAY(40); |
| 482 | } |
| 483 | |
| 484 | CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ|BGE_MICOMM_BUSY| |
| 485 | BGE_MIPHY(phy)|BGE_MIREG(reg)); |
| 486 | |
| 487 | for (i = 0; i < BGE_TIMEOUT; i++) { |
| 488 | val = CSR_READ_4(sc, BGE_MI_COMM); |
| 489 | if (!(val & BGE_MICOMM_BUSY)) |
| 490 | break; |
| 491 | } |
| 492 | |
| 493 | if (i == BGE_TIMEOUT) { |
| 494 | if_printf(ifp, "PHY read timed out\n"); |
| 495 | val = 0; |
| 496 | goto done; |
| 497 | } |
| 498 | |
| 499 | val = CSR_READ_4(sc, BGE_MI_COMM); |
| 500 | |
| 501 | done: |
| 502 | if (autopoll & BGE_MIMODE_AUTOPOLL) { |
| 503 | BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); |
| 504 | DELAY(40); |
| 505 | } |
| 506 | |
| 507 | if (val & BGE_MICOMM_READFAIL) |
| 508 | return(0); |
| 509 | |
| 510 | return(val & 0xFFFF); |
| 511 | } |
| 512 | |
| 513 | static int |
| 514 | bge_miibus_writereg(device_t dev, int phy, int reg, int val) |
| 515 | { |
| 516 | struct bge_softc *sc; |
| 517 | uint32_t autopoll; |
| 518 | int i; |
| 519 | |
| 520 | sc = device_get_softc(dev); |
| 521 | |
| 522 | /* Reading with autopolling on may trigger PCI errors */ |
| 523 | autopoll = CSR_READ_4(sc, BGE_MI_MODE); |
| 524 | if (autopoll & BGE_MIMODE_AUTOPOLL) { |
| 525 | BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); |
| 526 | DELAY(40); |
| 527 | } |
| 528 | |
| 529 | CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE|BGE_MICOMM_BUSY| |
| 530 | BGE_MIPHY(phy)|BGE_MIREG(reg)|val); |
| 531 | |
| 532 | for (i = 0; i < BGE_TIMEOUT; i++) { |
| 533 | if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) |
| 534 | break; |
| 535 | } |
| 536 | |
| 537 | if (autopoll & BGE_MIMODE_AUTOPOLL) { |
| 538 | BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL); |
| 539 | DELAY(40); |
| 540 | } |
| 541 | |
| 542 | if (i == BGE_TIMEOUT) { |
| 543 | if_printf(&sc->arpcom.ac_if, "PHY read timed out\n"); |
| 544 | return(0); |
| 545 | } |
| 546 | |
| 547 | return(0); |
| 548 | } |
| 549 | |
| 550 | static void |
| 551 | bge_miibus_statchg(device_t dev) |
| 552 | { |
| 553 | struct bge_softc *sc; |
| 554 | struct mii_data *mii; |
| 555 | |
| 556 | sc = device_get_softc(dev); |
| 557 | mii = device_get_softc(sc->bge_miibus); |
| 558 | |
| 559 | BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE); |
| 560 | if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { |
| 561 | BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII); |
| 562 | } else { |
| 563 | BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII); |
| 564 | } |
| 565 | |
| 566 | if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) { |
| 567 | BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); |
| 568 | } else { |
| 569 | BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | /* |
| 574 | * Handle events that have triggered interrupts. |
| 575 | */ |
| 576 | static void |
| 577 | bge_handle_events(struct bge_softc *sc) |
| 578 | { |
| 579 | } |
| 580 | |
| 581 | /* |
| 582 | * Memory management for jumbo frames. |
| 583 | */ |
| 584 | static int |
| 585 | bge_alloc_jumbo_mem(struct bge_softc *sc) |
| 586 | { |
| 587 | struct bge_jpool_entry *entry; |
| 588 | caddr_t ptr; |
| 589 | int i; |
| 590 | |
| 591 | /* Grab a big chunk o' storage. */ |
| 592 | sc->bge_cdata.bge_jumbo_buf = contigmalloc(BGE_JMEM, M_DEVBUF, |
| 593 | M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0); |
| 594 | |
| 595 | if (sc->bge_cdata.bge_jumbo_buf == NULL) { |
| 596 | if_printf(&sc->arpcom.ac_if, "no memory for jumbo buffers!\n"); |
| 597 | return(ENOBUFS); |
| 598 | } |
| 599 | |
| 600 | SLIST_INIT(&sc->bge_jfree_listhead); |
| 601 | SLIST_INIT(&sc->bge_jinuse_listhead); |
| 602 | |
| 603 | /* |
| 604 | * Now divide it up into 9K pieces and save the addresses |
| 605 | * in an array. Note that we play an evil trick here by using |
| 606 | * the first few bytes in the buffer to hold the the address |
| 607 | * of the softc structure for this interface. This is because |
| 608 | * bge_jfree() needs it, but it is called by the mbuf management |
| 609 | * code which will not pass it to us explicitly. |
| 610 | */ |
| 611 | ptr = sc->bge_cdata.bge_jumbo_buf; |
| 612 | for (i = 0; i < BGE_JSLOTS; i++) { |
| 613 | uint64_t **aptr; |
| 614 | |
| 615 | aptr = (uint64_t **)ptr; |
| 616 | aptr[0] = (uint64_t *)sc; |
| 617 | ptr += sizeof(uint64_t); |
| 618 | sc->bge_cdata.bge_jslots[i].bge_buf = ptr; |
| 619 | sc->bge_cdata.bge_jslots[i].bge_inuse = 0; |
| 620 | ptr += (BGE_JLEN - sizeof(uint64_t)); |
| 621 | entry = malloc(sizeof(struct bge_jpool_entry), |
| 622 | M_DEVBUF, M_INTWAIT); |
| 623 | entry->slot = i; |
| 624 | SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, |
| 625 | entry, jpool_entries); |
| 626 | } |
| 627 | |
| 628 | return(0); |
| 629 | } |
| 630 | |
| 631 | static void |
| 632 | bge_free_jumbo_mem(struct bge_softc *sc) |
| 633 | { |
| 634 | struct bge_jpool_entry *entry; |
| 635 | int i; |
| 636 | |
| 637 | for (i = 0; i < BGE_JSLOTS; i++) { |
| 638 | entry = SLIST_FIRST(&sc->bge_jfree_listhead); |
| 639 | SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jpool_entries); |
| 640 | free(entry, M_DEVBUF); |
| 641 | } |
| 642 | |
| 643 | contigfree(sc->bge_cdata.bge_jumbo_buf, BGE_JMEM, M_DEVBUF); |
| 644 | } |
| 645 | |
| 646 | /* |
| 647 | * Allocate a jumbo buffer. |
| 648 | */ |
| 649 | static void * |
| 650 | bge_jalloc(struct bge_softc *sc) |
| 651 | { |
| 652 | struct bge_jpool_entry *entry; |
| 653 | |
| 654 | entry = SLIST_FIRST(&sc->bge_jfree_listhead); |
| 655 | |
| 656 | if (entry == NULL) { |
| 657 | if_printf(&sc->arpcom.ac_if, "no free jumbo buffers\n"); |
| 658 | return(NULL); |
| 659 | } |
| 660 | |
| 661 | SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jpool_entries); |
| 662 | SLIST_INSERT_HEAD(&sc->bge_jinuse_listhead, entry, jpool_entries); |
| 663 | sc->bge_cdata.bge_jslots[entry->slot].bge_inuse = 1; |
| 664 | return(sc->bge_cdata.bge_jslots[entry->slot].bge_buf); |
| 665 | } |
| 666 | |
| 667 | /* |
| 668 | * Adjust usage count on a jumbo buffer. |
| 669 | */ |
| 670 | static void |
| 671 | bge_jref(caddr_t buf, u_int size) |
| 672 | { |
| 673 | struct bge_softc *sc; |
| 674 | uint64_t **aptr; |
| 675 | int i; |
| 676 | |
| 677 | /* Extract the softc struct pointer. */ |
| 678 | aptr = (uint64_t **)(buf - sizeof(uint64_t)); |
| 679 | sc = (struct bge_softc *)(aptr[0]); |
| 680 | |
| 681 | if (sc == NULL) |
| 682 | panic("bge_jref: can't find softc pointer!"); |
| 683 | |
| 684 | if (size != BGE_JUMBO_FRAMELEN) |
| 685 | panic("bge_jref: adjusting refcount of buf of wrong size!"); |
| 686 | |
| 687 | /* calculate the slot this buffer belongs to */ |
| 688 | |
| 689 | i = ((vm_offset_t)aptr |
| 690 | - (vm_offset_t)sc->bge_cdata.bge_jumbo_buf) / BGE_JLEN; |
| 691 | |
| 692 | if ((i < 0) || (i >= BGE_JSLOTS)) |
| 693 | panic("bge_jref: asked to reference buffer " |
| 694 | "that we don't manage!"); |
| 695 | else if (sc->bge_cdata.bge_jslots[i].bge_inuse == 0) |
| 696 | panic("bge_jref: buffer already free!"); |
| 697 | else |
| 698 | sc->bge_cdata.bge_jslots[i].bge_inuse++; |
| 699 | } |
| 700 | |
| 701 | /* |
| 702 | * Release a jumbo buffer. |
| 703 | */ |
| 704 | static void |
| 705 | bge_jfree(caddr_t buf, u_int size) |
| 706 | { |
| 707 | struct bge_softc *sc; |
| 708 | uint64_t **aptr; |
| 709 | struct bge_jpool_entry *entry; |
| 710 | int i; |
| 711 | |
| 712 | /* Extract the softc struct pointer. */ |
| 713 | aptr = (uint64_t **)(buf - sizeof(uint64_t)); |
| 714 | sc = (struct bge_softc *)(aptr[0]); |
| 715 | |
| 716 | if (sc == NULL) |
| 717 | panic("bge_jfree: can't find softc pointer!"); |
| 718 | |
| 719 | if (size != BGE_JUMBO_FRAMELEN) |
| 720 | panic("bge_jfree: freeing buffer of wrong size!"); |
| 721 | |
| 722 | /* calculate the slot this buffer belongs to */ |
| 723 | |
| 724 | i = ((vm_offset_t)aptr |
| 725 | - (vm_offset_t)sc->bge_cdata.bge_jumbo_buf) / BGE_JLEN; |
| 726 | |
| 727 | if ((i < 0) || (i >= BGE_JSLOTS)) |
| 728 | panic("bge_jfree: asked to free buffer that we don't manage!"); |
| 729 | else if (sc->bge_cdata.bge_jslots[i].bge_inuse == 0) |
| 730 | panic("bge_jfree: buffer already free!"); |
| 731 | else { |
| 732 | sc->bge_cdata.bge_jslots[i].bge_inuse--; |
| 733 | if(sc->bge_cdata.bge_jslots[i].bge_inuse == 0) { |
| 734 | entry = SLIST_FIRST(&sc->bge_jinuse_listhead); |
| 735 | if (entry == NULL) |
| 736 | panic("bge_jfree: buffer not in use!"); |
| 737 | entry->slot = i; |
| 738 | SLIST_REMOVE_HEAD(&sc->bge_jinuse_listhead, |
| 739 | jpool_entries); |
| 740 | SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, |
| 741 | entry, jpool_entries); |
| 742 | } |
| 743 | } |
| 744 | } |
| 745 | |
| 746 | |
| 747 | /* |
| 748 | * Intialize a standard receive ring descriptor. |
| 749 | */ |
| 750 | static int |
| 751 | bge_newbuf_std(struct bge_softc *sc, int i, struct mbuf *m) |
| 752 | { |
| 753 | struct mbuf *m_new = NULL; |
| 754 | struct bge_rx_bd *r; |
| 755 | |
| 756 | if (m == NULL) { |
| 757 | MGETHDR(m_new, MB_DONTWAIT, MT_DATA); |
| 758 | if (m_new == NULL) |
| 759 | return(ENOBUFS); |
| 760 | |
| 761 | MCLGET(m_new, MB_DONTWAIT); |
| 762 | if (!(m_new->m_flags & M_EXT)) { |
| 763 | m_freem(m_new); |
| 764 | return(ENOBUFS); |
| 765 | } |
| 766 | m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; |
| 767 | } else { |
| 768 | m_new = m; |
| 769 | m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; |
| 770 | m_new->m_data = m_new->m_ext.ext_buf; |
| 771 | } |
| 772 | |
| 773 | if (!sc->bge_rx_alignment_bug) |
| 774 | m_adj(m_new, ETHER_ALIGN); |
| 775 | sc->bge_cdata.bge_rx_std_chain[i] = m_new; |
| 776 | r = &sc->bge_rdata->bge_rx_std_ring[i]; |
| 777 | BGE_HOSTADDR(r->bge_addr, vtophys(mtod(m_new, caddr_t))); |
| 778 | r->bge_flags = BGE_RXBDFLAG_END; |
| 779 | r->bge_len = m_new->m_len; |
| 780 | r->bge_idx = i; |
| 781 | |
| 782 | return(0); |
| 783 | } |
| 784 | |
| 785 | /* |
| 786 | * Initialize a jumbo receive ring descriptor. This allocates |
| 787 | * a jumbo buffer from the pool managed internally by the driver. |
| 788 | */ |
| 789 | static int |
| 790 | bge_newbuf_jumbo(struct bge_softc *sc, int i, struct mbuf *m) |
| 791 | { |
| 792 | struct mbuf *m_new = NULL; |
| 793 | struct bge_rx_bd *r; |
| 794 | |
| 795 | if (m == NULL) { |
| 796 | caddr_t *buf = NULL; |
| 797 | |
| 798 | /* Allocate the mbuf. */ |
| 799 | MGETHDR(m_new, MB_DONTWAIT, MT_DATA); |
| 800 | if (m_new == NULL) |
| 801 | return(ENOBUFS); |
| 802 | |
| 803 | /* Allocate the jumbo buffer */ |
| 804 | buf = bge_jalloc(sc); |
| 805 | if (buf == NULL) { |
| 806 | m_freem(m_new); |
| 807 | if_printf(&sc->arpcom.ac_if, "jumbo allocation failed " |
| 808 | "-- packet dropped!\n"); |
| 809 | return(ENOBUFS); |
| 810 | } |
| 811 | |
| 812 | /* Attach the buffer to the mbuf. */ |
| 813 | m_new->m_data = m_new->m_ext.ext_buf = (void *)buf; |
| 814 | m_new->m_flags |= M_EXT | M_EXT_OLD; |
| 815 | m_new->m_len = m_new->m_pkthdr.len = |
| 816 | m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN; |
| 817 | m_new->m_ext.ext_nfree.old = bge_jfree; |
| 818 | m_new->m_ext.ext_nref.old = bge_jref; |
| 819 | } else { |
| 820 | m_new = m; |
| 821 | m_new->m_data = m_new->m_ext.ext_buf; |
| 822 | m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN; |
| 823 | } |
| 824 | |
| 825 | if (!sc->bge_rx_alignment_bug) |
| 826 | m_adj(m_new, ETHER_ALIGN); |
| 827 | /* Set up the descriptor. */ |
| 828 | r = &sc->bge_rdata->bge_rx_jumbo_ring[i]; |
| 829 | sc->bge_cdata.bge_rx_jumbo_chain[i] = m_new; |
| 830 | BGE_HOSTADDR(r->bge_addr, vtophys(mtod(m_new, caddr_t))); |
| 831 | r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING; |
| 832 | r->bge_len = m_new->m_len; |
| 833 | r->bge_idx = i; |
| 834 | |
| 835 | return(0); |
| 836 | } |
| 837 | |
| 838 | /* |
| 839 | * The standard receive ring has 512 entries in it. At 2K per mbuf cluster, |
| 840 | * that's 1MB or memory, which is a lot. For now, we fill only the first |
| 841 | * 256 ring entries and hope that our CPU is fast enough to keep up with |
| 842 | * the NIC. |
| 843 | */ |
| 844 | static int |
| 845 | bge_init_rx_ring_std(struct bge_softc *sc) |
| 846 | { |
| 847 | int i; |
| 848 | |
| 849 | for (i = 0; i < BGE_SSLOTS; i++) { |
| 850 | if (bge_newbuf_std(sc, i, NULL) == ENOBUFS) |
| 851 | return(ENOBUFS); |
| 852 | }; |
| 853 | |
| 854 | sc->bge_std = i - 1; |
| 855 | CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); |
| 856 | |
| 857 | return(0); |
| 858 | } |
| 859 | |
| 860 | static void |
| 861 | bge_free_rx_ring_std(struct bge_softc *sc) |
| 862 | { |
| 863 | int i; |
| 864 | |
| 865 | for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { |
| 866 | if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) { |
| 867 | m_freem(sc->bge_cdata.bge_rx_std_chain[i]); |
| 868 | sc->bge_cdata.bge_rx_std_chain[i] = NULL; |
| 869 | } |
| 870 | bzero(&sc->bge_rdata->bge_rx_std_ring[i], |
| 871 | sizeof(struct bge_rx_bd)); |
| 872 | } |
| 873 | } |
| 874 | |
| 875 | static int |
| 876 | bge_init_rx_ring_jumbo(struct bge_softc *sc) |
| 877 | { |
| 878 | int i; |
| 879 | struct bge_rcb *rcb; |
| 880 | |
| 881 | for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { |
| 882 | if (bge_newbuf_jumbo(sc, i, NULL) == ENOBUFS) |
| 883 | return(ENOBUFS); |
| 884 | }; |
| 885 | |
| 886 | sc->bge_jumbo = i - 1; |
| 887 | |
| 888 | rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb; |
| 889 | rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 0); |
| 890 | CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); |
| 891 | |
| 892 | CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); |
| 893 | |
| 894 | return(0); |
| 895 | } |
| 896 | |
| 897 | static void |
| 898 | bge_free_rx_ring_jumbo(struct bge_softc *sc) |
| 899 | { |
| 900 | int i; |
| 901 | |
| 902 | for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { |
| 903 | if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) { |
| 904 | m_freem(sc->bge_cdata.bge_rx_jumbo_chain[i]); |
| 905 | sc->bge_cdata.bge_rx_jumbo_chain[i] = NULL; |
| 906 | } |
| 907 | bzero(&sc->bge_rdata->bge_rx_jumbo_ring[i], |
| 908 | sizeof(struct bge_rx_bd)); |
| 909 | } |
| 910 | } |
| 911 | |
| 912 | static void |
| 913 | bge_free_tx_ring(struct bge_softc *sc) |
| 914 | { |
| 915 | int i; |
| 916 | |
| 917 | if (sc->bge_rdata->bge_tx_ring == NULL) |
| 918 | return; |
| 919 | |
| 920 | for (i = 0; i < BGE_TX_RING_CNT; i++) { |
| 921 | if (sc->bge_cdata.bge_tx_chain[i] != NULL) { |
| 922 | m_freem(sc->bge_cdata.bge_tx_chain[i]); |
| 923 | sc->bge_cdata.bge_tx_chain[i] = NULL; |
| 924 | } |
| 925 | bzero(&sc->bge_rdata->bge_tx_ring[i], |
| 926 | sizeof(struct bge_tx_bd)); |
| 927 | } |
| 928 | } |
| 929 | |
| 930 | static int |
| 931 | bge_init_tx_ring(struct bge_softc *sc) |
| 932 | { |
| 933 | sc->bge_txcnt = 0; |
| 934 | sc->bge_tx_saved_considx = 0; |
| 935 | |
| 936 | CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, 0); |
| 937 | /* 5700 b2 errata */ |
| 938 | if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) |
| 939 | CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, 0); |
| 940 | |
| 941 | CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); |
| 942 | /* 5700 b2 errata */ |
| 943 | if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) |
| 944 | CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); |
| 945 | |
| 946 | return(0); |
| 947 | } |
| 948 | |
| 949 | #define BGE_POLY 0xEDB88320 |
| 950 | |
| 951 | static uint32_t |
| 952 | bge_crc(addr) |
| 953 | caddr_t addr; |
| 954 | { |
| 955 | uint32_t idx, bit, data, crc; |
| 956 | |
| 957 | /* Compute CRC for the address value. */ |
| 958 | crc = 0xFFFFFFFF; /* initial value */ |
| 959 | |
| 960 | for (idx = 0; idx < 6; idx++) { |
| 961 | for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) |
| 962 | crc = (crc >> 1) ^ (((crc ^ data) & 1) ? BGE_POLY : 0); |
| 963 | } |
| 964 | |
| 965 | return(crc & 0x7F); |
| 966 | } |
| 967 | |
| 968 | static void |
| 969 | bge_setmulti(struct bge_softc *sc) |
| 970 | { |
| 971 | struct ifnet *ifp; |
| 972 | struct ifmultiaddr *ifma; |
| 973 | uint32_t hashes[4] = { 0, 0, 0, 0 }; |
| 974 | int h, i; |
| 975 | |
| 976 | ifp = &sc->arpcom.ac_if; |
| 977 | |
| 978 | if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { |
| 979 | for (i = 0; i < 4; i++) |
| 980 | CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF); |
| 981 | return; |
| 982 | } |
| 983 | |
| 984 | /* First, zot all the existing filters. */ |
| 985 | for (i = 0; i < 4; i++) |
| 986 | CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0); |
| 987 | |
| 988 | /* Now program new ones. */ |
| 989 | LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { |
| 990 | if (ifma->ifma_addr->sa_family != AF_LINK) |
| 991 | continue; |
| 992 | h = bge_crc(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); |
| 993 | hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F); |
| 994 | } |
| 995 | |
| 996 | for (i = 0; i < 4; i++) |
| 997 | CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]); |
| 998 | } |
| 999 | |
| 1000 | /* |
| 1001 | * Do endian, PCI and DMA initialization. Also check the on-board ROM |
| 1002 | * self-test results. |
| 1003 | */ |
| 1004 | static int |
| 1005 | bge_chipinit(struct bge_softc *sc) |
| 1006 | { |
| 1007 | int i; |
| 1008 | uint32_t dma_rw_ctl; |
| 1009 | |
| 1010 | /* Set endianness before we access any non-PCI registers. */ |
| 1011 | #if BYTE_ORDER == BIG_ENDIAN |
| 1012 | pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL, |
| 1013 | BGE_BIGENDIAN_INIT, 4); |
| 1014 | #else |
| 1015 | pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL, |
| 1016 | BGE_LITTLEENDIAN_INIT, 4); |
| 1017 | #endif |
| 1018 | |
| 1019 | /* |
| 1020 | * Check the 'ROM failed' bit on the RX CPU to see if |
| 1021 | * self-tests passed. |
| 1022 | */ |
| 1023 | if (CSR_READ_4(sc, BGE_RXCPU_MODE) & BGE_RXCPUMODE_ROMFAIL) { |
| 1024 | if_printf(&sc->arpcom.ac_if, |
| 1025 | "RX CPU self-diagnostics failed!\n"); |
| 1026 | return(ENODEV); |
| 1027 | } |
| 1028 | |
| 1029 | /* Clear the MAC control register */ |
| 1030 | CSR_WRITE_4(sc, BGE_MAC_MODE, 0); |
| 1031 | |
| 1032 | /* |
| 1033 | * Clear the MAC statistics block in the NIC's |
| 1034 | * internal memory. |
| 1035 | */ |
| 1036 | for (i = BGE_STATS_BLOCK; |
| 1037 | i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t)) |
| 1038 | BGE_MEMWIN_WRITE(sc, i, 0); |
| 1039 | |
| 1040 | for (i = BGE_STATUS_BLOCK; |
| 1041 | i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t)) |
| 1042 | BGE_MEMWIN_WRITE(sc, i, 0); |
| 1043 | |
| 1044 | /* Set up the PCI DMA control register. */ |
| 1045 | if (pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4) & |
| 1046 | BGE_PCISTATE_PCI_BUSMODE) { |
| 1047 | /* Conventional PCI bus */ |
| 1048 | dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | |
| 1049 | (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | |
| 1050 | (0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) | |
| 1051 | (0x0F); |
| 1052 | } else { |
| 1053 | /* PCI-X bus */ |
| 1054 | /* |
| 1055 | * The 5704 uses a different encoding of read/write |
| 1056 | * watermarks. |
| 1057 | */ |
| 1058 | if (sc->bge_asicrev == BGE_ASICREV_BCM5704) |
| 1059 | dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | |
| 1060 | (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | |
| 1061 | (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT); |
| 1062 | else |
| 1063 | dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | |
| 1064 | (0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | |
| 1065 | (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) | |
| 1066 | (0x0F); |
| 1067 | |
| 1068 | /* |
| 1069 | * 5703 and 5704 need ONEDMA_AT_ONCE as a workaround |
| 1070 | * for hardware bugs. |
| 1071 | */ |
| 1072 | if (sc->bge_asicrev == BGE_ASICREV_BCM5703 || |
| 1073 | sc->bge_asicrev == BGE_ASICREV_BCM5704) { |
| 1074 | uint32_t tmp; |
| 1075 | |
| 1076 | tmp = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1f; |
| 1077 | if (tmp == 0x6 || tmp == 0x7) |
| 1078 | dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE; |
| 1079 | } |
| 1080 | } |
| 1081 | |
| 1082 | if (sc->bge_asicrev == BGE_ASICREV_BCM5703 || |
| 1083 | sc->bge_asicrev == BGE_ASICREV_BCM5704 || |
| 1084 | sc->bge_asicrev == BGE_ASICREV_BCM5705) |
| 1085 | dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA; |
| 1086 | pci_write_config(sc->bge_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4); |
| 1087 | |
| 1088 | /* |
| 1089 | * Set up general mode register. |
| 1090 | */ |
| 1091 | CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_MODECTL_WORDSWAP_NONFRAME| |
| 1092 | BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| |
| 1093 | BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS| |
| 1094 | BGE_MODECTL_TX_NO_PHDR_CSUM|BGE_MODECTL_RX_NO_PHDR_CSUM); |
| 1095 | |
| 1096 | /* |
| 1097 | * Disable memory write invalidate. Apparently it is not supported |
| 1098 | * properly by these devices. |
| 1099 | */ |
| 1100 | PCI_CLRBIT(sc->bge_dev, BGE_PCI_CMD, PCIM_CMD_MWIEN, 4); |
| 1101 | |
| 1102 | /* Set the timer prescaler (always 66Mhz) */ |
| 1103 | CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/); |
| 1104 | |
| 1105 | return(0); |
| 1106 | } |
| 1107 | |
| 1108 | static int |
| 1109 | bge_blockinit(struct bge_softc *sc) |
| 1110 | { |
| 1111 | struct bge_rcb *rcb; |
| 1112 | volatile struct bge_rcb *vrcb; |
| 1113 | int i; |
| 1114 | |
| 1115 | /* |
| 1116 | * Initialize the memory window pointer register so that |
| 1117 | * we can access the first 32K of internal NIC RAM. This will |
| 1118 | * allow us to set up the TX send ring RCBs and the RX return |
| 1119 | * ring RCBs, plus other things which live in NIC memory. |
| 1120 | */ |
| 1121 | CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0); |
| 1122 | |
| 1123 | /* Note: the BCM5704 has a smaller mbuf space than other chips. */ |
| 1124 | |
| 1125 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) { |
| 1126 | /* Configure mbuf memory pool */ |
| 1127 | if (sc->bge_extram) { |
| 1128 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, |
| 1129 | BGE_EXT_SSRAM); |
| 1130 | if (sc->bge_asicrev == BGE_ASICREV_BCM5704) |
| 1131 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000); |
| 1132 | else |
| 1133 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); |
| 1134 | } else { |
| 1135 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, |
| 1136 | BGE_BUFFPOOL_1); |
| 1137 | if (sc->bge_asicrev == BGE_ASICREV_BCM5704) |
| 1138 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000); |
| 1139 | else |
| 1140 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); |
| 1141 | } |
| 1142 | |
| 1143 | /* Configure DMA resource pool */ |
| 1144 | CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR, |
| 1145 | BGE_DMA_DESCRIPTORS); |
| 1146 | CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000); |
| 1147 | } |
| 1148 | |
| 1149 | /* Configure mbuf pool watermarks */ |
| 1150 | if (sc->bge_asicrev == BGE_ASICREV_BCM5705) { |
| 1151 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0); |
| 1152 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10); |
| 1153 | } else { |
| 1154 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50); |
| 1155 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20); |
| 1156 | } |
| 1157 | CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60); |
| 1158 | |
| 1159 | /* Configure DMA resource watermarks */ |
| 1160 | CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5); |
| 1161 | CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10); |
| 1162 | |
| 1163 | /* Enable buffer manager */ |
| 1164 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) { |
| 1165 | CSR_WRITE_4(sc, BGE_BMAN_MODE, |
| 1166 | BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN); |
| 1167 | |
| 1168 | /* Poll for buffer manager start indication */ |
| 1169 | for (i = 0; i < BGE_TIMEOUT; i++) { |
| 1170 | if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE) |
| 1171 | break; |
| 1172 | DELAY(10); |
| 1173 | } |
| 1174 | |
| 1175 | if (i == BGE_TIMEOUT) { |
| 1176 | if_printf(&sc->arpcom.ac_if, |
| 1177 | "buffer manager failed to start\n"); |
| 1178 | return(ENXIO); |
| 1179 | } |
| 1180 | } |
| 1181 | |
| 1182 | /* Enable flow-through queues */ |
| 1183 | CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); |
| 1184 | CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); |
| 1185 | |
| 1186 | /* Wait until queue initialization is complete */ |
| 1187 | for (i = 0; i < BGE_TIMEOUT; i++) { |
| 1188 | if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0) |
| 1189 | break; |
| 1190 | DELAY(10); |
| 1191 | } |
| 1192 | |
| 1193 | if (i == BGE_TIMEOUT) { |
| 1194 | if_printf(&sc->arpcom.ac_if, |
| 1195 | "flow-through queue init failed\n"); |
| 1196 | return(ENXIO); |
| 1197 | } |
| 1198 | |
| 1199 | /* Initialize the standard RX ring control block */ |
| 1200 | rcb = &sc->bge_rdata->bge_info.bge_std_rx_rcb; |
| 1201 | BGE_HOSTADDR(rcb->bge_hostaddr, |
| 1202 | vtophys(&sc->bge_rdata->bge_rx_std_ring)); |
| 1203 | if (sc->bge_asicrev == BGE_ASICREV_BCM5705) |
| 1204 | rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0); |
| 1205 | else |
| 1206 | rcb->bge_maxlen_flags = |
| 1207 | BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0); |
| 1208 | if (sc->bge_extram) |
| 1209 | rcb->bge_nicaddr = BGE_EXT_STD_RX_RINGS; |
| 1210 | else |
| 1211 | rcb->bge_nicaddr = BGE_STD_RX_RINGS; |
| 1212 | CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi); |
| 1213 | CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo); |
| 1214 | CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); |
| 1215 | CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr); |
| 1216 | |
| 1217 | /* |
| 1218 | * Initialize the jumbo RX ring control block |
| 1219 | * We set the 'ring disabled' bit in the flags |
| 1220 | * field until we're actually ready to start |
| 1221 | * using this ring (i.e. once we set the MTU |
| 1222 | * high enough to require it). |
| 1223 | */ |
| 1224 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) { |
| 1225 | rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb; |
| 1226 | BGE_HOSTADDR(rcb->bge_hostaddr, |
| 1227 | vtophys(&sc->bge_rdata->bge_rx_jumbo_ring)); |
| 1228 | rcb->bge_maxlen_flags = |
| 1229 | BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, |
| 1230 | BGE_RCB_FLAG_RING_DISABLED); |
| 1231 | if (sc->bge_extram) |
| 1232 | rcb->bge_nicaddr = BGE_EXT_JUMBO_RX_RINGS; |
| 1233 | else |
| 1234 | rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS; |
| 1235 | CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI, |
| 1236 | rcb->bge_hostaddr.bge_addr_hi); |
| 1237 | CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO, |
| 1238 | rcb->bge_hostaddr.bge_addr_lo); |
| 1239 | CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, |
| 1240 | rcb->bge_maxlen_flags); |
| 1241 | CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr); |
| 1242 | |
| 1243 | /* Set up dummy disabled mini ring RCB */ |
| 1244 | rcb = &sc->bge_rdata->bge_info.bge_mini_rx_rcb; |
| 1245 | rcb->bge_maxlen_flags = |
| 1246 | BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED); |
| 1247 | CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS, |
| 1248 | rcb->bge_maxlen_flags); |
| 1249 | } |
| 1250 | |
| 1251 | /* |
| 1252 | * Set the BD ring replentish thresholds. The recommended |
| 1253 | * values are 1/8th the number of descriptors allocated to |
| 1254 | * each ring. |
| 1255 | */ |
| 1256 | CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, BGE_STD_RX_RING_CNT/8); |
| 1257 | CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH, BGE_JUMBO_RX_RING_CNT/8); |
| 1258 | |
| 1259 | /* |
| 1260 | * Disable all unused send rings by setting the 'ring disabled' |
| 1261 | * bit in the flags field of all the TX send ring control blocks. |
| 1262 | * These are located in NIC memory. |
| 1263 | */ |
| 1264 | vrcb = (volatile struct bge_rcb *)(sc->bge_vhandle + BGE_MEMWIN_START + |
| 1265 | BGE_SEND_RING_RCB); |
| 1266 | for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) { |
| 1267 | vrcb->bge_maxlen_flags = |
| 1268 | BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED); |
| 1269 | vrcb->bge_nicaddr = 0; |
| 1270 | vrcb++; |
| 1271 | } |
| 1272 | |
| 1273 | /* Configure TX RCB 0 (we use only the first ring) */ |
| 1274 | vrcb = (volatile struct bge_rcb *)(sc->bge_vhandle + BGE_MEMWIN_START + |
| 1275 | BGE_SEND_RING_RCB); |
| 1276 | vrcb->bge_hostaddr.bge_addr_hi = 0; |
| 1277 | BGE_HOSTADDR(vrcb->bge_hostaddr, vtophys(&sc->bge_rdata->bge_tx_ring)); |
| 1278 | vrcb->bge_nicaddr = BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT); |
| 1279 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 1280 | vrcb->bge_maxlen_flags = |
| 1281 | BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0); |
| 1282 | |
| 1283 | /* Disable all unused RX return rings */ |
| 1284 | vrcb = (volatile struct bge_rcb *)(sc->bge_vhandle + BGE_MEMWIN_START + |
| 1285 | BGE_RX_RETURN_RING_RCB); |
| 1286 | for (i = 0; i < BGE_RX_RINGS_MAX; i++) { |
| 1287 | vrcb->bge_hostaddr.bge_addr_hi = 0; |
| 1288 | vrcb->bge_hostaddr.bge_addr_lo = 0; |
| 1289 | vrcb->bge_maxlen_flags = |
| 1290 | BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, |
| 1291 | BGE_RCB_FLAG_RING_DISABLED); |
| 1292 | vrcb->bge_nicaddr = 0; |
| 1293 | CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO + |
| 1294 | (i * (sizeof(uint64_t))), 0); |
| 1295 | vrcb++; |
| 1296 | } |
| 1297 | |
| 1298 | /* Initialize RX ring indexes */ |
| 1299 | CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, 0); |
| 1300 | CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0); |
| 1301 | CSR_WRITE_4(sc, BGE_MBX_RX_MINI_PROD_LO, 0); |
| 1302 | |
| 1303 | /* |
| 1304 | * Set up RX return ring 0 |
| 1305 | * Note that the NIC address for RX return rings is 0x00000000. |
| 1306 | * The return rings live entirely within the host, so the |
| 1307 | * nicaddr field in the RCB isn't used. |
| 1308 | */ |
| 1309 | vrcb = (volatile struct bge_rcb *)(sc->bge_vhandle + BGE_MEMWIN_START + |
| 1310 | BGE_RX_RETURN_RING_RCB); |
| 1311 | vrcb->bge_hostaddr.bge_addr_hi = 0; |
| 1312 | BGE_HOSTADDR(vrcb->bge_hostaddr, |
| 1313 | vtophys(&sc->bge_rdata->bge_rx_return_ring)); |
| 1314 | vrcb->bge_nicaddr = 0x00000000; |
| 1315 | vrcb->bge_maxlen_flags = |
| 1316 | BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0); |
| 1317 | |
| 1318 | /* Set random backoff seed for TX */ |
| 1319 | CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF, |
| 1320 | sc->arpcom.ac_enaddr[0] + sc->arpcom.ac_enaddr[1] + |
| 1321 | sc->arpcom.ac_enaddr[2] + sc->arpcom.ac_enaddr[3] + |
| 1322 | sc->arpcom.ac_enaddr[4] + sc->arpcom.ac_enaddr[5] + |
| 1323 | BGE_TX_BACKOFF_SEED_MASK); |
| 1324 | |
| 1325 | /* Set inter-packet gap */ |
| 1326 | CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620); |
| 1327 | |
| 1328 | /* |
| 1329 | * Specify which ring to use for packets that don't match |
| 1330 | * any RX rules. |
| 1331 | */ |
| 1332 | CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08); |
| 1333 | |
| 1334 | /* |
| 1335 | * Configure number of RX lists. One interrupt distribution |
| 1336 | * list, sixteen active lists, one bad frames class. |
| 1337 | */ |
| 1338 | CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181); |
| 1339 | |
| 1340 | /* Inialize RX list placement stats mask. */ |
| 1341 | CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF); |
| 1342 | CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1); |
| 1343 | |
| 1344 | /* Disable host coalescing until we get it set up */ |
| 1345 | CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000); |
| 1346 | |
| 1347 | /* Poll to make sure it's shut down. */ |
| 1348 | for (i = 0; i < BGE_TIMEOUT; i++) { |
| 1349 | if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE)) |
| 1350 | break; |
| 1351 | DELAY(10); |
| 1352 | } |
| 1353 | |
| 1354 | if (i == BGE_TIMEOUT) { |
| 1355 | if_printf(&sc->arpcom.ac_if, |
| 1356 | "host coalescing engine failed to idle\n"); |
| 1357 | return(ENXIO); |
| 1358 | } |
| 1359 | |
| 1360 | /* Set up host coalescing defaults */ |
| 1361 | CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks); |
| 1362 | CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks); |
| 1363 | CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds); |
| 1364 | CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds); |
| 1365 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) { |
| 1366 | CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0); |
| 1367 | CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0); |
| 1368 | } |
| 1369 | CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 0); |
| 1370 | CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 0); |
| 1371 | |
| 1372 | /* Set up address of statistics block */ |
| 1373 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) { |
| 1374 | CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI, 0); |
| 1375 | CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO, |
| 1376 | vtophys(&sc->bge_rdata->bge_info.bge_stats)); |
| 1377 | |
| 1378 | CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK); |
| 1379 | CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK); |
| 1380 | CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks); |
| 1381 | } |
| 1382 | |
| 1383 | /* Set up address of status block */ |
| 1384 | CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI, 0); |
| 1385 | CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO, |
| 1386 | vtophys(&sc->bge_rdata->bge_status_block)); |
| 1387 | |
| 1388 | sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx = 0; |
| 1389 | sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx = 0; |
| 1390 | |
| 1391 | /* Turn on host coalescing state machine */ |
| 1392 | CSR_WRITE_4(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); |
| 1393 | |
| 1394 | /* Turn on RX BD completion state machine and enable attentions */ |
| 1395 | CSR_WRITE_4(sc, BGE_RBDC_MODE, |
| 1396 | BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN); |
| 1397 | |
| 1398 | /* Turn on RX list placement state machine */ |
| 1399 | CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); |
| 1400 | |
| 1401 | /* Turn on RX list selector state machine. */ |
| 1402 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 1403 | CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); |
| 1404 | |
| 1405 | /* Turn on DMA, clear stats */ |
| 1406 | CSR_WRITE_4(sc, BGE_MAC_MODE, BGE_MACMODE_TXDMA_ENB| |
| 1407 | BGE_MACMODE_RXDMA_ENB|BGE_MACMODE_RX_STATS_CLEAR| |
| 1408 | BGE_MACMODE_TX_STATS_CLEAR|BGE_MACMODE_RX_STATS_ENB| |
| 1409 | BGE_MACMODE_TX_STATS_ENB|BGE_MACMODE_FRMHDR_DMA_ENB| |
| 1410 | (sc->bge_tbi ? BGE_PORTMODE_TBI : BGE_PORTMODE_MII)); |
| 1411 | |
| 1412 | /* Set misc. local control, enable interrupts on attentions */ |
| 1413 | CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN); |
| 1414 | |
| 1415 | #ifdef notdef |
| 1416 | /* Assert GPIO pins for PHY reset */ |
| 1417 | BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0| |
| 1418 | BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2); |
| 1419 | BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0| |
| 1420 | BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2); |
| 1421 | #endif |
| 1422 | |
| 1423 | /* Turn on DMA completion state machine */ |
| 1424 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 1425 | CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); |
| 1426 | |
| 1427 | /* Turn on write DMA state machine */ |
| 1428 | CSR_WRITE_4(sc, BGE_WDMA_MODE, |
| 1429 | BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS); |
| 1430 | |
| 1431 | /* Turn on read DMA state machine */ |
| 1432 | CSR_WRITE_4(sc, BGE_RDMA_MODE, |
| 1433 | BGE_RDMAMODE_ENABLE|BGE_RDMAMODE_ALL_ATTNS); |
| 1434 | |
| 1435 | /* Turn on RX data completion state machine */ |
| 1436 | CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); |
| 1437 | |
| 1438 | /* Turn on RX BD initiator state machine */ |
| 1439 | CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); |
| 1440 | |
| 1441 | /* Turn on RX data and RX BD initiator state machine */ |
| 1442 | CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE); |
| 1443 | |
| 1444 | /* Turn on Mbuf cluster free state machine */ |
| 1445 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 1446 | CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); |
| 1447 | |
| 1448 | /* Turn on send BD completion state machine */ |
| 1449 | CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); |
| 1450 | |
| 1451 | /* Turn on send data completion state machine */ |
| 1452 | CSR_WRITE_4(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); |
| 1453 | |
| 1454 | /* Turn on send data initiator state machine */ |
| 1455 | CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); |
| 1456 | |
| 1457 | /* Turn on send BD initiator state machine */ |
| 1458 | CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); |
| 1459 | |
| 1460 | /* Turn on send BD selector state machine */ |
| 1461 | CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); |
| 1462 | |
| 1463 | CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF); |
| 1464 | CSR_WRITE_4(sc, BGE_SDI_STATS_CTL, |
| 1465 | BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER); |
| 1466 | |
| 1467 | /* ack/clear link change events */ |
| 1468 | CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| |
| 1469 | BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| |
| 1470 | BGE_MACSTAT_LINK_CHANGED); |
| 1471 | |
| 1472 | /* Enable PHY auto polling (for MII/GMII only) */ |
| 1473 | if (sc->bge_tbi) { |
| 1474 | CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK); |
| 1475 | } else { |
| 1476 | BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16); |
| 1477 | if (sc->bge_asicrev == BGE_ASICREV_BCM5700) |
| 1478 | CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, |
| 1479 | BGE_EVTENB_MI_INTERRUPT); |
| 1480 | } |
| 1481 | |
| 1482 | /* Enable link state change attentions. */ |
| 1483 | BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED); |
| 1484 | |
| 1485 | return(0); |
| 1486 | } |
| 1487 | |
| 1488 | /* |
| 1489 | * Probe for a Broadcom chip. Check the PCI vendor and device IDs |
| 1490 | * against our list and return its name if we find a match. Note |
| 1491 | * that since the Broadcom controller contains VPD support, we |
| 1492 | * can get the device name string from the controller itself instead |
| 1493 | * of the compiled-in string. This is a little slow, but it guarantees |
| 1494 | * we'll always announce the right product name. |
| 1495 | */ |
| 1496 | static int |
| 1497 | bge_probe(device_t dev) |
| 1498 | { |
| 1499 | struct bge_softc *sc; |
| 1500 | struct bge_type *t; |
| 1501 | char *descbuf; |
| 1502 | uint16_t product, vendor; |
| 1503 | |
| 1504 | product = pci_get_device(dev); |
| 1505 | vendor = pci_get_vendor(dev); |
| 1506 | |
| 1507 | for (t = bge_devs; t->bge_name != NULL; t++) { |
| 1508 | if (vendor == t->bge_vid && product == t->bge_did) |
| 1509 | break; |
| 1510 | } |
| 1511 | |
| 1512 | if (t->bge_name == NULL) |
| 1513 | return(ENXIO); |
| 1514 | |
| 1515 | sc = device_get_softc(dev); |
| 1516 | #ifdef notdef |
| 1517 | sc->bge_dev = dev; |
| 1518 | |
| 1519 | bge_vpd_read(sc); |
| 1520 | device_set_desc(dev, sc->bge_vpd_prodname); |
| 1521 | #endif |
| 1522 | descbuf = malloc(BGE_DEVDESC_MAX, M_TEMP, M_WAITOK); |
| 1523 | snprintf(descbuf, BGE_DEVDESC_MAX, "%s, ASIC rev. %#04x", t->bge_name, |
| 1524 | pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >> 16); |
| 1525 | device_set_desc_copy(dev, descbuf); |
| 1526 | if (pci_get_subvendor(dev) == PCI_VENDOR_DELL) |
| 1527 | sc->bge_no_3_led = 1; |
| 1528 | free(descbuf, M_TEMP); |
| 1529 | return(0); |
| 1530 | } |
| 1531 | |
| 1532 | static int |
| 1533 | bge_attach(device_t dev) |
| 1534 | { |
| 1535 | int s; |
| 1536 | uint32_t command; |
| 1537 | struct ifnet *ifp; |
| 1538 | struct bge_softc *sc; |
| 1539 | uint32_t hwcfg = 0; |
| 1540 | uint32_t mac_addr = 0; |
| 1541 | int error = 0, rid; |
| 1542 | uint8_t ether_addr[ETHER_ADDR_LEN]; |
| 1543 | |
| 1544 | s = splimp(); |
| 1545 | |
| 1546 | sc = device_get_softc(dev); |
| 1547 | sc->bge_dev = dev; |
| 1548 | callout_init(&sc->bge_stat_timer); |
| 1549 | |
| 1550 | /* |
| 1551 | * Map control/status registers. |
| 1552 | */ |
| 1553 | pci_enable_busmaster(dev); |
| 1554 | pci_enable_io(dev, SYS_RES_MEMORY); |
| 1555 | command = pci_read_config(dev, PCIR_COMMAND, 4); |
| 1556 | |
| 1557 | if (!(command & PCIM_CMD_MEMEN)) { |
| 1558 | device_printf(dev, "failed to enable memory mapping!\n"); |
| 1559 | error = ENXIO; |
| 1560 | goto fail; |
| 1561 | } |
| 1562 | |
| 1563 | rid = BGE_PCI_BAR0; |
| 1564 | sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, |
| 1565 | RF_ACTIVE); |
| 1566 | |
| 1567 | if (sc->bge_res == NULL) { |
| 1568 | device_printf(dev, "couldn't map memory\n"); |
| 1569 | error = ENXIO; |
| 1570 | goto fail; |
| 1571 | } |
| 1572 | |
| 1573 | sc->bge_btag = rman_get_bustag(sc->bge_res); |
| 1574 | sc->bge_bhandle = rman_get_bushandle(sc->bge_res); |
| 1575 | sc->bge_vhandle = (vm_offset_t)rman_get_virtual(sc->bge_res); |
| 1576 | |
| 1577 | /* Allocate interrupt */ |
| 1578 | rid = 0; |
| 1579 | |
| 1580 | sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, |
| 1581 | RF_SHAREABLE | RF_ACTIVE); |
| 1582 | |
| 1583 | if (sc->bge_irq == NULL) { |
| 1584 | device_printf(dev, "couldn't map interrupt\n"); |
| 1585 | error = ENXIO; |
| 1586 | goto fail; |
| 1587 | } |
| 1588 | |
| 1589 | error = bus_setup_intr(dev, sc->bge_irq, INTR_TYPE_NET, |
| 1590 | bge_intr, sc, &sc->bge_intrhand); |
| 1591 | |
| 1592 | if (error) { |
| 1593 | bge_release_resources(sc); |
| 1594 | device_printf(dev, "couldn't set up irq\n"); |
| 1595 | goto fail; |
| 1596 | } |
| 1597 | |
| 1598 | ifp = &sc->arpcom.ac_if; |
| 1599 | if_initname(ifp, device_get_name(dev), device_get_unit(dev)); |
| 1600 | |
| 1601 | /* Try to reset the chip. */ |
| 1602 | bge_reset(sc); |
| 1603 | |
| 1604 | if (bge_chipinit(sc)) { |
| 1605 | device_printf(dev, "chip initialization failed\n"); |
| 1606 | bge_release_resources(sc); |
| 1607 | error = ENXIO; |
| 1608 | goto fail; |
| 1609 | } |
| 1610 | |
| 1611 | /* |
| 1612 | * Get station address from the EEPROM. |
| 1613 | */ |
| 1614 | mac_addr = bge_readmem_ind(sc, 0x0c14); |
| 1615 | if ((mac_addr >> 16) == 0x484b) { |
| 1616 | ether_addr[0] = (uint8_t)(mac_addr >> 8); |
| 1617 | ether_addr[1] = (uint8_t)mac_addr; |
| 1618 | mac_addr = bge_readmem_ind(sc, 0x0c18); |
| 1619 | ether_addr[2] = (uint8_t)(mac_addr >> 24); |
| 1620 | ether_addr[3] = (uint8_t)(mac_addr >> 16); |
| 1621 | ether_addr[4] = (uint8_t)(mac_addr >> 8); |
| 1622 | ether_addr[5] = (uint8_t)mac_addr; |
| 1623 | } else if (bge_read_eeprom(sc, ether_addr, |
| 1624 | BGE_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { |
| 1625 | device_printf(dev, "failed to read station address\n"); |
| 1626 | bge_release_resources(sc); |
| 1627 | error = ENXIO; |
| 1628 | goto fail; |
| 1629 | } |
| 1630 | |
| 1631 | /* Allocate the general information block and ring buffers. */ |
| 1632 | sc->bge_rdata = contigmalloc(sizeof(struct bge_ring_data), M_DEVBUF, |
| 1633 | M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0); |
| 1634 | |
| 1635 | if (sc->bge_rdata == NULL) { |
| 1636 | bge_release_resources(sc); |
| 1637 | error = ENXIO; |
| 1638 | device_printf(dev, "no memory for list buffers!\n"); |
| 1639 | goto fail; |
| 1640 | } |
| 1641 | |
| 1642 | bzero(sc->bge_rdata, sizeof(struct bge_ring_data)); |
| 1643 | |
| 1644 | /* Save ASIC rev. */ |
| 1645 | |
| 1646 | sc->bge_chipid = |
| 1647 | pci_read_config(dev, BGE_PCI_MISC_CTL, 4) & |
| 1648 | BGE_PCIMISCCTL_ASICREV; |
| 1649 | sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid); |
| 1650 | sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid); |
| 1651 | |
| 1652 | /* |
| 1653 | * Try to allocate memory for jumbo buffers. |
| 1654 | * The 5705 does not appear to support jumbo frames. |
| 1655 | */ |
| 1656 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) { |
| 1657 | if (bge_alloc_jumbo_mem(sc)) { |
| 1658 | device_printf(dev, "jumbo buffer allocation failed\n"); |
| 1659 | bge_release_resources(sc); |
| 1660 | error = ENXIO; |
| 1661 | goto fail; |
| 1662 | } |
| 1663 | } |
| 1664 | |
| 1665 | /* Set default tuneable values. */ |
| 1666 | sc->bge_stat_ticks = BGE_TICKS_PER_SEC; |
| 1667 | sc->bge_rx_coal_ticks = 150; |
| 1668 | sc->bge_tx_coal_ticks = 150; |
| 1669 | sc->bge_rx_max_coal_bds = 64; |
| 1670 | sc->bge_tx_max_coal_bds = 128; |
| 1671 | |
| 1672 | /* 5705 limits RX return ring to 512 entries. */ |
| 1673 | if (sc->bge_asicrev == BGE_ASICREV_BCM5705) |
| 1674 | sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705; |
| 1675 | else |
| 1676 | sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT; |
| 1677 | |
| 1678 | /* Set up ifnet structure */ |
| 1679 | ifp->if_softc = sc; |
| 1680 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; |
| 1681 | ifp->if_ioctl = bge_ioctl; |
| 1682 | ifp->if_start = bge_start; |
| 1683 | ifp->if_watchdog = bge_watchdog; |
| 1684 | ifp->if_init = bge_init; |
| 1685 | ifp->if_mtu = ETHERMTU; |
| 1686 | ifq_set_maxlen(&ifp->if_snd, BGE_TX_RING_CNT - 1); |
| 1687 | ifq_set_ready(&ifp->if_snd); |
| 1688 | ifp->if_hwassist = BGE_CSUM_FEATURES; |
| 1689 | ifp->if_capabilities = IFCAP_HWCSUM; |
| 1690 | ifp->if_capenable = ifp->if_capabilities; |
| 1691 | |
| 1692 | /* |
| 1693 | * Figure out what sort of media we have by checking the |
| 1694 | * hardware config word in the first 32k of NIC internal memory, |
| 1695 | * or fall back to examining the EEPROM if necessary. |
| 1696 | * Note: on some BCM5700 cards, this value appears to be unset. |
| 1697 | * If that's the case, we have to rely on identifying the NIC |
| 1698 | * by its PCI subsystem ID, as we do below for the SysKonnect |
| 1699 | * SK-9D41. |
| 1700 | */ |
| 1701 | if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER) |
| 1702 | hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG); |
| 1703 | else { |
| 1704 | bge_read_eeprom(sc, (caddr_t)&hwcfg, |
| 1705 | BGE_EE_HWCFG_OFFSET, sizeof(hwcfg)); |
| 1706 | hwcfg = ntohl(hwcfg); |
| 1707 | } |
| 1708 | |
| 1709 | if ((hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) |
| 1710 | sc->bge_tbi = 1; |
| 1711 | |
| 1712 | /* The SysKonnect SK-9D41 is a 1000baseSX card. */ |
| 1713 | if (pci_get_subvendor(dev) == PCI_PRODUCT_SCHNEIDERKOCH_SK_9D41) |
| 1714 | sc->bge_tbi = 1; |
| 1715 | |
| 1716 | if (sc->bge_tbi) { |
| 1717 | ifmedia_init(&sc->bge_ifmedia, IFM_IMASK, |
| 1718 | bge_ifmedia_upd, bge_ifmedia_sts); |
| 1719 | ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL); |
| 1720 | ifmedia_add(&sc->bge_ifmedia, |
| 1721 | IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL); |
| 1722 | ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); |
| 1723 | ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO); |
| 1724 | } else { |
| 1725 | /* |
| 1726 | * Do transceiver setup. |
| 1727 | */ |
| 1728 | if (mii_phy_probe(dev, &sc->bge_miibus, |
| 1729 | bge_ifmedia_upd, bge_ifmedia_sts)) { |
| 1730 | device_printf(dev, "MII without any PHY!\n"); |
| 1731 | bge_release_resources(sc); |
| 1732 | bge_free_jumbo_mem(sc); |
| 1733 | error = ENXIO; |
| 1734 | goto fail; |
| 1735 | } |
| 1736 | } |
| 1737 | |
| 1738 | /* |
| 1739 | * When using the BCM5701 in PCI-X mode, data corruption has |
| 1740 | * been observed in the first few bytes of some received packets. |
| 1741 | * Aligning the packet buffer in memory eliminates the corruption. |
| 1742 | * Unfortunately, this misaligns the packet payloads. On platforms |
| 1743 | * which do not support unaligned accesses, we will realign the |
| 1744 | * payloads by copying the received packets. |
| 1745 | */ |
| 1746 | switch (sc->bge_chipid) { |
| 1747 | case BGE_CHIPID_BCM5701_A0: |
| 1748 | case BGE_CHIPID_BCM5701_B0: |
| 1749 | case BGE_CHIPID_BCM5701_B2: |
| 1750 | case BGE_CHIPID_BCM5701_B5: |
| 1751 | /* If in PCI-X mode, work around the alignment bug. */ |
| 1752 | if ((pci_read_config(dev, BGE_PCI_PCISTATE, 4) & |
| 1753 | (BGE_PCISTATE_PCI_BUSMODE | BGE_PCISTATE_PCI_BUSSPEED)) == |
| 1754 | BGE_PCISTATE_PCI_BUSSPEED) |
| 1755 | sc->bge_rx_alignment_bug = 1; |
| 1756 | break; |
| 1757 | } |
| 1758 | |
| 1759 | /* |
| 1760 | * Call MI attach routine. |
| 1761 | */ |
| 1762 | ether_ifattach(ifp, ether_addr); |
| 1763 | |
| 1764 | fail: |
| 1765 | splx(s); |
| 1766 | |
| 1767 | return(error); |
| 1768 | } |
| 1769 | |
| 1770 | static int |
| 1771 | bge_detach(device_t dev) |
| 1772 | { |
| 1773 | struct bge_softc *sc; |
| 1774 | struct ifnet *ifp; |
| 1775 | int s; |
| 1776 | |
| 1777 | s = splimp(); |
| 1778 | |
| 1779 | sc = device_get_softc(dev); |
| 1780 | ifp = &sc->arpcom.ac_if; |
| 1781 | |
| 1782 | ether_ifdetach(ifp); |
| 1783 | bge_stop(sc); |
| 1784 | bge_reset(sc); |
| 1785 | |
| 1786 | if (sc->bge_tbi) { |
| 1787 | ifmedia_removeall(&sc->bge_ifmedia); |
| 1788 | } else { |
| 1789 | bus_generic_detach(dev); |
| 1790 | device_delete_child(dev, sc->bge_miibus); |
| 1791 | } |
| 1792 | |
| 1793 | bge_release_resources(sc); |
| 1794 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 1795 | bge_free_jumbo_mem(sc); |
| 1796 | |
| 1797 | splx(s); |
| 1798 | |
| 1799 | return(0); |
| 1800 | } |
| 1801 | |
| 1802 | static void |
| 1803 | bge_release_resources(struct bge_softc *sc) |
| 1804 | { |
| 1805 | device_t dev; |
| 1806 | |
| 1807 | dev = sc->bge_dev; |
| 1808 | |
| 1809 | if (sc->bge_vpd_prodname != NULL) |
| 1810 | free(sc->bge_vpd_prodname, M_DEVBUF); |
| 1811 | |
| 1812 | if (sc->bge_vpd_readonly != NULL) |
| 1813 | free(sc->bge_vpd_readonly, M_DEVBUF); |
| 1814 | |
| 1815 | if (sc->bge_intrhand != NULL) |
| 1816 | bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand); |
| 1817 | |
| 1818 | if (sc->bge_irq != NULL) |
| 1819 | bus_release_resource(dev, SYS_RES_IRQ, 0, sc->bge_irq); |
| 1820 | |
| 1821 | if (sc->bge_res != NULL) |
| 1822 | bus_release_resource(dev, SYS_RES_MEMORY, |
| 1823 | BGE_PCI_BAR0, sc->bge_res); |
| 1824 | |
| 1825 | if (sc->bge_rdata != NULL) |
| 1826 | contigfree(sc->bge_rdata, sizeof(struct bge_ring_data), |
| 1827 | M_DEVBUF); |
| 1828 | |
| 1829 | return; |
| 1830 | } |
| 1831 | |
| 1832 | static void |
| 1833 | bge_reset(struct bge_softc *sc) |
| 1834 | { |
| 1835 | device_t dev; |
| 1836 | uint32_t cachesize, command, pcistate; |
| 1837 | int i, val = 0; |
| 1838 | |
| 1839 | dev = sc->bge_dev; |
| 1840 | |
| 1841 | /* Save some important PCI state. */ |
| 1842 | cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4); |
| 1843 | command = pci_read_config(dev, BGE_PCI_CMD, 4); |
| 1844 | pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4); |
| 1845 | |
| 1846 | pci_write_config(dev, BGE_PCI_MISC_CTL, |
| 1847 | BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| |
| 1848 | BGE_PCIMISCCTL_ENDIAN_WORDSWAP|BGE_PCIMISCCTL_PCISTATE_RW, 4); |
| 1849 | |
| 1850 | /* Issue global reset */ |
| 1851 | bge_writereg_ind(sc, BGE_MISC_CFG, |
| 1852 | BGE_MISCCFG_RESET_CORE_CLOCKS | (65<<1)); |
| 1853 | |
| 1854 | DELAY(1000); |
| 1855 | |
| 1856 | /* Reset some of the PCI state that got zapped by reset */ |
| 1857 | pci_write_config(dev, BGE_PCI_MISC_CTL, |
| 1858 | BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| |
| 1859 | BGE_PCIMISCCTL_ENDIAN_WORDSWAP|BGE_PCIMISCCTL_PCISTATE_RW, 4); |
| 1860 | pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4); |
| 1861 | pci_write_config(dev, BGE_PCI_CMD, command, 4); |
| 1862 | bge_writereg_ind(sc, BGE_MISC_CFG, (65 << 1)); |
| 1863 | |
| 1864 | /* |
| 1865 | * Prevent PXE restart: write a magic number to the |
| 1866 | * general communications memory at 0xB50. |
| 1867 | */ |
| 1868 | bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); |
| 1869 | /* |
| 1870 | * Poll the value location we just wrote until |
| 1871 | * we see the 1's complement of the magic number. |
| 1872 | * This indicates that the firmware initialization |
| 1873 | * is complete. |
| 1874 | */ |
| 1875 | for (i = 0; i < BGE_TIMEOUT; i++) { |
| 1876 | val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM); |
| 1877 | if (val == ~BGE_MAGIC_NUMBER) |
| 1878 | break; |
| 1879 | DELAY(10); |
| 1880 | } |
| 1881 | |
| 1882 | if (i == BGE_TIMEOUT) { |
| 1883 | if_printf(&sc->arpcom.ac_if, "firmware handshake timed out\n"); |
| 1884 | return; |
| 1885 | } |
| 1886 | |
| 1887 | /* |
| 1888 | * XXX Wait for the value of the PCISTATE register to |
| 1889 | * return to its original pre-reset state. This is a |
| 1890 | * fairly good indicator of reset completion. If we don't |
| 1891 | * wait for the reset to fully complete, trying to read |
| 1892 | * from the device's non-PCI registers may yield garbage |
| 1893 | * results. |
| 1894 | */ |
| 1895 | for (i = 0; i < BGE_TIMEOUT; i++) { |
| 1896 | if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate) |
| 1897 | break; |
| 1898 | DELAY(10); |
| 1899 | } |
| 1900 | |
| 1901 | /* Enable memory arbiter. */ |
| 1902 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 1903 | CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); |
| 1904 | |
| 1905 | /* Fix up byte swapping */ |
| 1906 | CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_MODECTL_BYTESWAP_NONFRAME| |
| 1907 | BGE_MODECTL_BYTESWAP_DATA); |
| 1908 | |
| 1909 | CSR_WRITE_4(sc, BGE_MAC_MODE, 0); |
| 1910 | |
| 1911 | DELAY(10000); |
| 1912 | |
| 1913 | return; |
| 1914 | } |
| 1915 | |
| 1916 | /* |
| 1917 | * Frame reception handling. This is called if there's a frame |
| 1918 | * on the receive return list. |
| 1919 | * |
| 1920 | * Note: we have to be able to handle two possibilities here: |
| 1921 | * 1) the frame is from the jumbo recieve ring |
| 1922 | * 2) the frame is from the standard receive ring |
| 1923 | */ |
| 1924 | |
| 1925 | static void |
| 1926 | bge_rxeof(struct bge_softc *sc) |
| 1927 | { |
| 1928 | struct ifnet *ifp; |
| 1929 | int stdcnt = 0, jumbocnt = 0; |
| 1930 | |
| 1931 | ifp = &sc->arpcom.ac_if; |
| 1932 | |
| 1933 | while(sc->bge_rx_saved_considx != |
| 1934 | sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx) { |
| 1935 | struct bge_rx_bd *cur_rx; |
| 1936 | uint32_t rxidx; |
| 1937 | struct mbuf *m = NULL; |
| 1938 | uint16_t vlan_tag = 0; |
| 1939 | int have_tag = 0; |
| 1940 | |
| 1941 | cur_rx = |
| 1942 | &sc->bge_rdata->bge_rx_return_ring[sc->bge_rx_saved_considx]; |
| 1943 | |
| 1944 | rxidx = cur_rx->bge_idx; |
| 1945 | BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt); |
| 1946 | |
| 1947 | if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) { |
| 1948 | have_tag = 1; |
| 1949 | vlan_tag = cur_rx->bge_vlan_tag; |
| 1950 | } |
| 1951 | |
| 1952 | if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) { |
| 1953 | BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT); |
| 1954 | m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx]; |
| 1955 | sc->bge_cdata.bge_rx_jumbo_chain[rxidx] = NULL; |
| 1956 | jumbocnt++; |
| 1957 | if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { |
| 1958 | ifp->if_ierrors++; |
| 1959 | bge_newbuf_jumbo(sc, sc->bge_jumbo, m); |
| 1960 | continue; |
| 1961 | } |
| 1962 | if (bge_newbuf_jumbo(sc, |
| 1963 | sc->bge_jumbo, NULL) == ENOBUFS) { |
| 1964 | ifp->if_ierrors++; |
| 1965 | bge_newbuf_jumbo(sc, sc->bge_jumbo, m); |
| 1966 | continue; |
| 1967 | } |
| 1968 | } else { |
| 1969 | BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT); |
| 1970 | m = sc->bge_cdata.bge_rx_std_chain[rxidx]; |
| 1971 | sc->bge_cdata.bge_rx_std_chain[rxidx] = NULL; |
| 1972 | stdcnt++; |
| 1973 | if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { |
| 1974 | ifp->if_ierrors++; |
| 1975 | bge_newbuf_std(sc, sc->bge_std, m); |
| 1976 | continue; |
| 1977 | } |
| 1978 | if (bge_newbuf_std(sc, sc->bge_std, |
| 1979 | NULL) == ENOBUFS) { |
| 1980 | ifp->if_ierrors++; |
| 1981 | bge_newbuf_std(sc, sc->bge_std, m); |
| 1982 | continue; |
| 1983 | } |
| 1984 | } |
| 1985 | |
| 1986 | ifp->if_ipackets++; |
| 1987 | #ifndef __i386__ |
| 1988 | /* |
| 1989 | * The i386 allows unaligned accesses, but for other |
| 1990 | * platforms we must make sure the payload is aligned. |
| 1991 | */ |
| 1992 | if (sc->bge_rx_alignment_bug) { |
| 1993 | bcopy(m->m_data, m->m_data + ETHER_ALIGN, |
| 1994 | cur_rx->bge_len); |
| 1995 | m->m_data += ETHER_ALIGN; |
| 1996 | } |
| 1997 | #endif |
| 1998 | m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN; |
| 1999 | m->m_pkthdr.rcvif = ifp; |
| 2000 | |
| 2001 | #if 0 /* currently broken for some packets, possibly related to TCP options */ |
| 2002 | if (ifp->if_hwassist) { |
| 2003 | m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; |
| 2004 | if ((cur_rx->bge_ip_csum ^ 0xffff) == 0) |
| 2005 | m->m_pkthdr.csum_flags |= CSUM_IP_VALID; |
| 2006 | if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) { |
| 2007 | m->m_pkthdr.csum_data = |
| 2008 | cur_rx->bge_tcp_udp_csum; |
| 2009 | m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; |
| 2010 | } |
| 2011 | } |
| 2012 | #endif |
| 2013 | |
| 2014 | /* |
| 2015 | * If we received a packet with a vlan tag, pass it |
| 2016 | * to vlan_input() instead of ether_input(). |
| 2017 | */ |
| 2018 | if (have_tag) { |
| 2019 | VLAN_INPUT_TAG(m, vlan_tag); |
| 2020 | have_tag = vlan_tag = 0; |
| 2021 | continue; |
| 2022 | } |
| 2023 | |
| 2024 | (*ifp->if_input)(ifp, m); |
| 2025 | } |
| 2026 | |
| 2027 | CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx); |
| 2028 | if (stdcnt) |
| 2029 | CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); |
| 2030 | if (jumbocnt) |
| 2031 | CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); |
| 2032 | } |
| 2033 | |
| 2034 | static void |
| 2035 | bge_txeof(struct bge_softc *sc) |
| 2036 | { |
| 2037 | struct bge_tx_bd *cur_tx = NULL; |
| 2038 | struct ifnet *ifp; |
| 2039 | |
| 2040 | ifp = &sc->arpcom.ac_if; |
| 2041 | |
| 2042 | /* |
| 2043 | * Go through our tx ring and free mbufs for those |
| 2044 | * frames that have been sent. |
| 2045 | */ |
| 2046 | while (sc->bge_tx_saved_considx != |
| 2047 | sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx) { |
| 2048 | uint32_t idx = 0; |
| 2049 | |
| 2050 | idx = sc->bge_tx_saved_considx; |
| 2051 | cur_tx = &sc->bge_rdata->bge_tx_ring[idx]; |
| 2052 | if (cur_tx->bge_flags & BGE_TXBDFLAG_END) |
| 2053 | ifp->if_opackets++; |
| 2054 | if (sc->bge_cdata.bge_tx_chain[idx] != NULL) { |
| 2055 | m_freem(sc->bge_cdata.bge_tx_chain[idx]); |
| 2056 | sc->bge_cdata.bge_tx_chain[idx] = NULL; |
| 2057 | } |
| 2058 | sc->bge_txcnt--; |
| 2059 | BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT); |
| 2060 | ifp->if_timer = 0; |
| 2061 | } |
| 2062 | |
| 2063 | if (cur_tx != NULL) |
| 2064 | ifp->if_flags &= ~IFF_OACTIVE; |
| 2065 | } |
| 2066 | |
| 2067 | static void |
| 2068 | bge_intr(void *xsc) |
| 2069 | { |
| 2070 | struct bge_softc *sc = xsc;; |
| 2071 | struct ifnet *ifp = &sc->arpcom.ac_if; |
| 2072 | uint32_t status; |
| 2073 | |
| 2074 | #ifdef notdef |
| 2075 | /* Avoid this for now -- checking this register is expensive. */ |
| 2076 | /* Make sure this is really our interrupt. */ |
| 2077 | if (!(CSR_READ_4(sc, BGE_MISC_LOCAL_CTL) & BGE_MLC_INTR_STATE)) |
| 2078 | return; |
| 2079 | #endif |
| 2080 | /* Ack interrupt and stop others from occuring. */ |
| 2081 | CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); |
| 2082 | |
| 2083 | /* |
| 2084 | * Process link state changes. |
| 2085 | * Grrr. The link status word in the status block does |
| 2086 | * not work correctly on the BCM5700 rev AX and BX chips, |
| 2087 | * according to all available information. Hence, we have |
| 2088 | * to enable MII interrupts in order to properly obtain |
| 2089 | * async link changes. Unfortunately, this also means that |
| 2090 | * we have to read the MAC status register to detect link |
| 2091 | * changes, thereby adding an additional register access to |
| 2092 | * the interrupt handler. |
| 2093 | */ |
| 2094 | |
| 2095 | if (sc->bge_asicrev == BGE_ASICREV_BCM5700) { |
| 2096 | status = CSR_READ_4(sc, BGE_MAC_STS); |
| 2097 | if (status & BGE_MACSTAT_MI_INTERRUPT) { |
| 2098 | sc->bge_link = 0; |
| 2099 | callout_stop(&sc->bge_stat_timer); |
| 2100 | bge_tick(sc); |
| 2101 | /* Clear the interrupt */ |
| 2102 | CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, |
| 2103 | BGE_EVTENB_MI_INTERRUPT); |
| 2104 | bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR); |
| 2105 | bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, |
| 2106 | BRGPHY_INTRS); |
| 2107 | } |
| 2108 | } else { |
| 2109 | if ((sc->bge_rdata->bge_status_block.bge_status & |
| 2110 | BGE_STATFLAG_UPDATED) && |
| 2111 | (sc->bge_rdata->bge_status_block.bge_status & |
| 2112 | BGE_STATFLAG_LINKSTATE_CHANGED)) { |
| 2113 | sc->bge_rdata->bge_status_block.bge_status &= |
| 2114 | ~(BGE_STATFLAG_UPDATED| |
| 2115 | BGE_STATFLAG_LINKSTATE_CHANGED); |
| 2116 | /* |
| 2117 | * Sometimes PCS encoding errors are detected in |
| 2118 | * TBI mode (on fiber NICs), and for some reason |
| 2119 | * the chip will signal them as link changes. |
| 2120 | * If we get a link change event, but the 'PCS |
| 2121 | * encoding error' bit in the MAC status register |
| 2122 | * is set, don't bother doing a link check. |
| 2123 | * This avoids spurious "gigabit link up" messages |
| 2124 | * that sometimes appear on fiber NICs during |
| 2125 | * periods of heavy traffic. (There should be no |
| 2126 | * effect on copper NICs.) |
| 2127 | */ |
| 2128 | status = CSR_READ_4(sc, BGE_MAC_STS); |
| 2129 | if (!(status & (BGE_MACSTAT_PORT_DECODE_ERROR| |
| 2130 | BGE_MACSTAT_MI_COMPLETE))) { |
| 2131 | sc->bge_link = 0; |
| 2132 | callout_stop(&sc->bge_stat_timer); |
| 2133 | bge_tick(sc); |
| 2134 | } |
| 2135 | sc->bge_link = 0; |
| 2136 | callout_stop(&sc->bge_stat_timer); |
| 2137 | bge_tick(sc); |
| 2138 | /* Clear the interrupt */ |
| 2139 | CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| |
| 2140 | BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| |
| 2141 | BGE_MACSTAT_LINK_CHANGED); |
| 2142 | |
| 2143 | /* Force flush the status block cached by PCI bridge */ |
| 2144 | CSR_READ_4(sc, BGE_MBX_IRQ0_LO); |
| 2145 | } |
| 2146 | } |
| 2147 | |
| 2148 | if (ifp->if_flags & IFF_RUNNING) { |
| 2149 | /* Check RX return ring producer/consumer */ |
| 2150 | bge_rxeof(sc); |
| 2151 | |
| 2152 | /* Check TX ring producer/consumer */ |
| 2153 | bge_txeof(sc); |
| 2154 | } |
| 2155 | |
| 2156 | bge_handle_events(sc); |
| 2157 | |
| 2158 | /* Re-enable interrupts. */ |
| 2159 | CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); |
| 2160 | |
| 2161 | if ((ifp->if_flags & IFF_RUNNING) && !ifq_is_empty(&ifp->if_snd)) |
| 2162 | (*ifp->if_start)(ifp); |
| 2163 | } |
| 2164 | |
| 2165 | static void |
| 2166 | bge_tick(void *xsc) |
| 2167 | { |
| 2168 | struct bge_softc *sc = xsc; |
| 2169 | struct ifnet *ifp = &sc->arpcom.ac_if; |
| 2170 | struct mii_data *mii = NULL; |
| 2171 | struct ifmedia *ifm = NULL; |
| 2172 | int s; |
| 2173 | |
| 2174 | s = splimp(); |
| 2175 | |
| 2176 | if (sc->bge_asicrev == BGE_ASICREV_BCM5705) |
| 2177 | bge_stats_update_regs(sc); |
| 2178 | else |
| 2179 | bge_stats_update(sc); |
| 2180 | callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc); |
| 2181 | if (sc->bge_link) { |
| 2182 | splx(s); |
| 2183 | return; |
| 2184 | } |
| 2185 | |
| 2186 | if (sc->bge_tbi) { |
| 2187 | ifm = &sc->bge_ifmedia; |
| 2188 | if (CSR_READ_4(sc, BGE_MAC_STS) & |
| 2189 | BGE_MACSTAT_TBI_PCS_SYNCHED) { |
| 2190 | sc->bge_link++; |
| 2191 | CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF); |
| 2192 | if_printf(ifp, "gigabit link up\n"); |
| 2193 | if (!ifq_is_empty(&ifp->if_snd)) |
| 2194 | (*ifp->if_start)(ifp); |
| 2195 | } |
| 2196 | splx(s); |
| 2197 | return; |
| 2198 | } |
| 2199 | |
| 2200 | mii = device_get_softc(sc->bge_miibus); |
| 2201 | mii_tick(mii); |
| 2202 | |
| 2203 | if (!sc->bge_link) { |
| 2204 | mii_pollstat(mii); |
| 2205 | if (mii->mii_media_status & IFM_ACTIVE && |
| 2206 | IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { |
| 2207 | sc->bge_link++; |
| 2208 | if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T || |
| 2209 | IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) |
| 2210 | if_printf(ifp, "gigabit link up\n"); |
| 2211 | if (!ifq_is_empty(&ifp->if_snd)) |
| 2212 | (*ifp->if_start)(ifp); |
| 2213 | } |
| 2214 | } |
| 2215 | |
| 2216 | splx(s); |
| 2217 | } |
| 2218 | |
| 2219 | static void |
| 2220 | bge_stats_update_regs(struct bge_softc *sc) |
| 2221 | { |
| 2222 | struct ifnet *ifp = &sc->arpcom.ac_if; |
| 2223 | struct bge_mac_stats_regs stats; |
| 2224 | uint32_t *s; |
| 2225 | int i; |
| 2226 | |
| 2227 | s = (uint32_t *)&stats; |
| 2228 | for (i = 0; i < sizeof(struct bge_mac_stats_regs); i += 4) { |
| 2229 | *s = CSR_READ_4(sc, BGE_RX_STATS + i); |
| 2230 | s++; |
| 2231 | } |
| 2232 | |
| 2233 | ifp->if_collisions += |
| 2234 | (stats.dot3StatsSingleCollisionFrames + |
| 2235 | stats.dot3StatsMultipleCollisionFrames + |
| 2236 | stats.dot3StatsExcessiveCollisions + |
| 2237 | stats.dot3StatsLateCollisions) - |
| 2238 | ifp->if_collisions; |
| 2239 | } |
| 2240 | |
| 2241 | static void |
| 2242 | bge_stats_update(struct bge_softc *sc) |
| 2243 | { |
| 2244 | struct ifnet *ifp = &sc->arpcom.ac_if; |
| 2245 | struct bge_stats *stats; |
| 2246 | |
| 2247 | stats = (struct bge_stats *)(sc->bge_vhandle + |
| 2248 | BGE_MEMWIN_START + BGE_STATS_BLOCK); |
| 2249 | |
| 2250 | ifp->if_collisions += |
| 2251 | (stats->txstats.dot3StatsSingleCollisionFrames.bge_addr_lo + |
| 2252 | stats->txstats.dot3StatsMultipleCollisionFrames.bge_addr_lo + |
| 2253 | stats->txstats.dot3StatsExcessiveCollisions.bge_addr_lo + |
| 2254 | stats->txstats.dot3StatsLateCollisions.bge_addr_lo) - |
| 2255 | ifp->if_collisions; |
| 2256 | |
| 2257 | #ifdef notdef |
| 2258 | ifp->if_collisions += |
| 2259 | (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames + |
| 2260 | sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames + |
| 2261 | sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions + |
| 2262 | sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) - |
| 2263 | ifp->if_collisions; |
| 2264 | #endif |
| 2265 | } |
| 2266 | |
| 2267 | /* |
| 2268 | * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data |
| 2269 | * pointers to descriptors. |
| 2270 | */ |
| 2271 | static int |
| 2272 | bge_encap(struct bge_softc *sc, struct mbuf *m_head, uint32_t *txidx) |
| 2273 | { |
| 2274 | struct bge_tx_bd *f = NULL; |
| 2275 | struct mbuf *m; |
| 2276 | uint32_t frag, cur, cnt = 0; |
| 2277 | uint16_t csum_flags = 0; |
| 2278 | struct ifvlan *ifv = NULL; |
| 2279 | |
| 2280 | if ((m_head->m_flags & (M_PROTO1|M_PKTHDR)) == (M_PROTO1|M_PKTHDR) && |
| 2281 | m_head->m_pkthdr.rcvif != NULL && |
| 2282 | m_head->m_pkthdr.rcvif->if_type == IFT_L2VLAN) |
| 2283 | ifv = m_head->m_pkthdr.rcvif->if_softc; |
| 2284 | |
| 2285 | m = m_head; |
| 2286 | cur = frag = *txidx; |
| 2287 | |
| 2288 | if (m_head->m_pkthdr.csum_flags) { |
| 2289 | if (m_head->m_pkthdr.csum_flags & CSUM_IP) |
| 2290 | csum_flags |= BGE_TXBDFLAG_IP_CSUM; |
| 2291 | if (m_head->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP)) |
| 2292 | csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM; |
| 2293 | if (m_head->m_flags & M_LASTFRAG) |
| 2294 | csum_flags |= BGE_TXBDFLAG_IP_FRAG_END; |
| 2295 | else if (m_head->m_flags & M_FRAG) |
| 2296 | csum_flags |= BGE_TXBDFLAG_IP_FRAG; |
| 2297 | } |
| 2298 | /* |
| 2299 | * Start packing the mbufs in this chain into |
| 2300 | * the fragment pointers. Stop when we run out |
| 2301 | * of fragments or hit the end of the mbuf chain. |
| 2302 | */ |
| 2303 | for (m = m_head; m != NULL; m = m->m_next) { |
| 2304 | if (m->m_len != 0) { |
| 2305 | f = &sc->bge_rdata->bge_tx_ring[frag]; |
| 2306 | if (sc->bge_cdata.bge_tx_chain[frag] != NULL) |
| 2307 | break; |
| 2308 | BGE_HOSTADDR(f->bge_addr, |
| 2309 | vtophys(mtod(m, vm_offset_t))); |
| 2310 | f->bge_len = m->m_len; |
| 2311 | f->bge_flags = csum_flags; |
| 2312 | if (ifv != NULL) { |
| 2313 | f->bge_flags |= BGE_TXBDFLAG_VLAN_TAG; |
| 2314 | f->bge_vlan_tag = ifv->ifv_tag; |
| 2315 | } else { |
| 2316 | f->bge_vlan_tag = 0; |
| 2317 | } |
| 2318 | /* |
| 2319 | * Sanity check: avoid coming within 16 descriptors |
| 2320 | * of the end of the ring. |
| 2321 | */ |
| 2322 | if ((BGE_TX_RING_CNT - (sc->bge_txcnt + cnt)) < 16) |
| 2323 | return(ENOBUFS); |
| 2324 | cur = frag; |
| 2325 | BGE_INC(frag, BGE_TX_RING_CNT); |
| 2326 | cnt++; |
| 2327 | } |
| 2328 | } |
| 2329 | |
| 2330 | if (m != NULL) |
| 2331 | return(ENOBUFS); |
| 2332 | |
| 2333 | if (frag == sc->bge_tx_saved_considx) |
| 2334 | return(ENOBUFS); |
| 2335 | |
| 2336 | sc->bge_rdata->bge_tx_ring[cur].bge_flags |= BGE_TXBDFLAG_END; |
| 2337 | sc->bge_cdata.bge_tx_chain[cur] = m_head; |
| 2338 | sc->bge_txcnt += cnt; |
| 2339 | |
| 2340 | *txidx = frag; |
| 2341 | |
| 2342 | return(0); |
| 2343 | } |
| 2344 | |
| 2345 | /* |
| 2346 | * Main transmit routine. To avoid having to do mbuf copies, we put pointers |
| 2347 | * to the mbuf data regions directly in the transmit descriptors. |
| 2348 | */ |
| 2349 | static void |
| 2350 | bge_start(struct ifnet *ifp) |
| 2351 | { |
| 2352 | struct bge_softc *sc; |
| 2353 | struct mbuf *m_head = NULL; |
| 2354 | uint32_t prodidx = 0; |
| 2355 | |
| 2356 | sc = ifp->if_softc; |
| 2357 | |
| 2358 | if (!sc->bge_link) |
| 2359 | return; |
| 2360 | |
| 2361 | prodidx = CSR_READ_4(sc, BGE_MBX_TX_HOST_PROD0_LO); |
| 2362 | |
| 2363 | while(sc->bge_cdata.bge_tx_chain[prodidx] == NULL) { |
| 2364 | m_head = ifq_poll(&ifp->if_snd); |
| 2365 | if (m_head == NULL) |
| 2366 | break; |
| 2367 | |
| 2368 | /* |
| 2369 | * XXX |
| 2370 | * safety overkill. If this is a fragmented packet chain |
| 2371 | * with delayed TCP/UDP checksums, then only encapsulate |
| 2372 | * it if we have enough descriptors to handle the entire |
| 2373 | * chain at once. |
| 2374 | * (paranoia -- may not actually be needed) |
| 2375 | */ |
| 2376 | if (m_head->m_flags & M_FIRSTFRAG && |
| 2377 | m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) { |
| 2378 | if ((BGE_TX_RING_CNT - sc->bge_txcnt) < |
| 2379 | m_head->m_pkthdr.csum_data + 16) { |
| 2380 | ifp->if_flags |= IFF_OACTIVE; |
| 2381 | break; |
| 2382 | } |
| 2383 | } |
| 2384 | |
| 2385 | /* |
| 2386 | * Pack the data into the transmit ring. If we |
| 2387 | * don't have room, set the OACTIVE flag and wait |
| 2388 | * for the NIC to drain the ring. |
| 2389 | */ |
| 2390 | if (bge_encap(sc, m_head, &prodidx)) { |
| 2391 | ifp->if_flags |= IFF_OACTIVE; |
| 2392 | break; |
| 2393 | } |
| 2394 | m_head = ifq_dequeue(&ifp->if_snd); |
| 2395 | |
| 2396 | BPF_MTAP(ifp, m_head); |
| 2397 | } |
| 2398 | |
| 2399 | /* Transmit */ |
| 2400 | CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); |
| 2401 | /* 5700 b2 errata */ |
| 2402 | if (sc->bge_chiprev == BGE_CHIPREV_5700_BX) |
| 2403 | CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); |
| 2404 | |
| 2405 | /* |
| 2406 | * Set a timeout in case the chip goes out to lunch. |
| 2407 | */ |
| 2408 | ifp->if_timer = 5; |
| 2409 | } |
| 2410 | |
| 2411 | static void |
| 2412 | bge_init(void *xsc) |
| 2413 | { |
| 2414 | struct bge_softc *sc = xsc; |
| 2415 | struct ifnet *ifp = &sc->arpcom.ac_if; |
| 2416 | uint16_t *m; |
| 2417 | int s; |
| 2418 | |
| 2419 | s = splimp(); |
| 2420 | |
| 2421 | if (ifp->if_flags & IFF_RUNNING) { |
| 2422 | splx(s); |
| 2423 | return; |
| 2424 | } |
| 2425 | |
| 2426 | /* Cancel pending I/O and flush buffers. */ |
| 2427 | bge_stop(sc); |
| 2428 | bge_reset(sc); |
| 2429 | bge_chipinit(sc); |
| 2430 | |
| 2431 | /* |
| 2432 | * Init the various state machines, ring |
| 2433 | * control blocks and firmware. |
| 2434 | */ |
| 2435 | if (bge_blockinit(sc)) { |
| 2436 | if_printf(ifp, "initialization failure\n"); |
| 2437 | splx(s); |
| 2438 | return; |
| 2439 | } |
| 2440 | |
| 2441 | /* Specify MTU. */ |
| 2442 | CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu + |
| 2443 | ETHER_HDR_LEN + ETHER_CRC_LEN); |
| 2444 | |
| 2445 | /* Load our MAC address. */ |
| 2446 | m = (uint16_t *)&sc->arpcom.ac_enaddr[0]; |
| 2447 | CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0])); |
| 2448 | CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2])); |
| 2449 | |
| 2450 | /* Enable or disable promiscuous mode as needed. */ |
| 2451 | if (ifp->if_flags & IFF_PROMISC) { |
| 2452 | BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); |
| 2453 | } else { |
| 2454 | BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); |
| 2455 | } |
| 2456 | |
| 2457 | /* Program multicast filter. */ |
| 2458 | bge_setmulti(sc); |
| 2459 | |
| 2460 | /* Init RX ring. */ |
| 2461 | bge_init_rx_ring_std(sc); |
| 2462 | |
| 2463 | /* |
| 2464 | * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's |
| 2465 | * memory to insure that the chip has in fact read the first |
| 2466 | * entry of the ring. |
| 2467 | */ |
| 2468 | if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) { |
| 2469 | uint32_t v, i; |
| 2470 | for (i = 0; i < 10; i++) { |
| 2471 | DELAY(20); |
| 2472 | v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8); |
| 2473 | if (v == (MCLBYTES - ETHER_ALIGN)) |
| 2474 | break; |
| 2475 | } |
| 2476 | if (i == 10) |
| 2477 | if_printf(ifp, "5705 A0 chip failed to load RX ring\n"); |
| 2478 | } |
| 2479 | |
| 2480 | /* Init jumbo RX ring. */ |
| 2481 | if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) |
| 2482 | bge_init_rx_ring_jumbo(sc); |
| 2483 | |
| 2484 | /* Init our RX return ring index */ |
| 2485 | sc->bge_rx_saved_considx = 0; |
| 2486 | |
| 2487 | /* Init TX ring. */ |
| 2488 | bge_init_tx_ring(sc); |
| 2489 | |
| 2490 | /* Turn on transmitter */ |
| 2491 | BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE); |
| 2492 | |
| 2493 | /* Turn on receiver */ |
| 2494 | BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); |
| 2495 | |
| 2496 | /* Tell firmware we're alive. */ |
| 2497 | BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); |
| 2498 | |
| 2499 | /* Enable host interrupts. */ |
| 2500 | BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA); |
| 2501 | BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); |
| 2502 | CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); |
| 2503 | |
| 2504 | bge_ifmedia_upd(ifp); |
| 2505 | |
| 2506 | ifp->if_flags |= IFF_RUNNING; |
| 2507 | ifp->if_flags &= ~IFF_OACTIVE; |
| 2508 | |
| 2509 | splx(s); |
| 2510 | |
| 2511 | callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc); |
| 2512 | } |
| 2513 | |
| 2514 | /* |
| 2515 | * Set media options. |
| 2516 | */ |
| 2517 | static int |
| 2518 | bge_ifmedia_upd(struct ifnet *ifp) |
| 2519 | { |
| 2520 | struct bge_softc *sc = ifp->if_softc; |
| 2521 | struct ifmedia *ifm = &sc->bge_ifmedia; |
| 2522 | struct mii_data *mii; |
| 2523 | |
| 2524 | /* If this is a 1000baseX NIC, enable the TBI port. */ |
| 2525 | if (sc->bge_tbi) { |
| 2526 | if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) |
| 2527 | return(EINVAL); |
| 2528 | switch(IFM_SUBTYPE(ifm->ifm_media)) { |
| 2529 | case IFM_AUTO: |
| 2530 | break; |
| 2531 | case IFM_1000_SX: |
| 2532 | if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { |
| 2533 | BGE_CLRBIT(sc, BGE_MAC_MODE, |
| 2534 | BGE_MACMODE_HALF_DUPLEX); |
| 2535 | } else { |
| 2536 | BGE_SETBIT(sc, BGE_MAC_MODE, |
| 2537 | BGE_MACMODE_HALF_DUPLEX); |
| 2538 | } |
| 2539 | break; |
| 2540 | default: |
| 2541 | return(EINVAL); |
| 2542 | } |
| 2543 | return(0); |
| 2544 | } |
| 2545 | |
| 2546 | mii = device_get_softc(sc->bge_miibus); |
| 2547 | sc->bge_link = 0; |
| 2548 | if (mii->mii_instance) { |
| 2549 | struct mii_softc *miisc; |
| 2550 | for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL; |
| 2551 | miisc = LIST_NEXT(miisc, mii_list)) |
| 2552 | mii_phy_reset(miisc); |
| 2553 | } |
| 2554 | mii_mediachg(mii); |
| 2555 | |
| 2556 | return(0); |
| 2557 | } |
| 2558 | |
| 2559 | /* |
| 2560 | * Report current media status. |
| 2561 | */ |
| 2562 | static void |
| 2563 | bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) |
| 2564 | { |
| 2565 | struct bge_softc *sc = ifp->if_softc; |
| 2566 | struct mii_data *mii; |
| 2567 | |
| 2568 | if (sc->bge_tbi) { |
| 2569 | ifmr->ifm_status = IFM_AVALID; |
| 2570 | ifmr->ifm_active = IFM_ETHER; |
| 2571 | if (CSR_READ_4(sc, BGE_MAC_STS) & |
| 2572 | BGE_MACSTAT_TBI_PCS_SYNCHED) |
| 2573 | ifmr->ifm_status |= IFM_ACTIVE; |
| 2574 | ifmr->ifm_active |= IFM_1000_SX; |
| 2575 | if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX) |
| 2576 | ifmr->ifm_active |= IFM_HDX; |
| 2577 | else |
| 2578 | ifmr->ifm_active |= IFM_FDX; |
| 2579 | return; |
| 2580 | } |
| 2581 | |
| 2582 | mii = device_get_softc(sc->bge_miibus); |
| 2583 | mii_pollstat(mii); |
| 2584 | ifmr->ifm_active = mii->mii_media_active; |
| 2585 | ifmr->ifm_status = mii->mii_media_status; |
| 2586 | } |
| 2587 | |
| 2588 | static int |
| 2589 | bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr) |
| 2590 | { |
| 2591 | struct bge_softc *sc = ifp->if_softc; |
| 2592 | struct ifreq *ifr = (struct ifreq *) data; |
| 2593 | int s, mask, error = 0; |
| 2594 | struct mii_data *mii; |
| 2595 | |
| 2596 | s = splimp(); |
| 2597 | |
| 2598 | switch(command) { |
| 2599 | case SIOCSIFADDR: |
| 2600 | case SIOCGIFADDR: |
| 2601 | error = ether_ioctl(ifp, command, data); |
| 2602 | break; |
| 2603 | case SIOCSIFMTU: |
| 2604 | /* Disallow jumbo frames on 5705. */ |
| 2605 | if ((sc->bge_asicrev == BGE_ASICREV_BCM5705 && |
| 2606 | ifr->ifr_mtu > ETHERMTU) || ifr->ifr_mtu > BGE_JUMBO_MTU) |
| 2607 | error = EINVAL; |
| 2608 | else { |
| 2609 | ifp->if_mtu = ifr->ifr_mtu; |
| 2610 | ifp->if_flags &= ~IFF_RUNNING; |
| 2611 | bge_init(sc); |
| 2612 | } |
| 2613 | break; |
| 2614 | case SIOCSIFFLAGS: |
| 2615 | if (ifp->if_flags & IFF_UP) { |
| 2616 | /* |
| 2617 | * If only the state of the PROMISC flag changed, |
| 2618 | * then just use the 'set promisc mode' command |
| 2619 | * instead of reinitializing the entire NIC. Doing |
| 2620 | * a full re-init means reloading the firmware and |
| 2621 | * waiting for it to start up, which may take a |
| 2622 | * second or two. |
| 2623 | */ |
| 2624 | if (ifp->if_flags & IFF_RUNNING && |
| 2625 | ifp->if_flags & IFF_PROMISC && |
| 2626 | !(sc->bge_if_flags & IFF_PROMISC)) { |
| 2627 | BGE_SETBIT(sc, BGE_RX_MODE, |
| 2628 | BGE_RXMODE_RX_PROMISC); |
| 2629 | } else if (ifp->if_flags & IFF_RUNNING && |
| 2630 | !(ifp->if_flags & IFF_PROMISC) && |
| 2631 | sc->bge_if_flags & IFF_PROMISC) { |
| 2632 | BGE_CLRBIT(sc, BGE_RX_MODE, |
| 2633 | BGE_RXMODE_RX_PROMISC); |
| 2634 | } else |
| 2635 | bge_init(sc); |
| 2636 | } else { |
| 2637 | if (ifp->if_flags & IFF_RUNNING) { |
| 2638 | bge_stop(sc); |
| 2639 | } |
| 2640 | } |
| 2641 | sc->bge_if_flags = ifp->if_flags; |
| 2642 | error = 0; |
| 2643 | break; |
| 2644 | case SIOCADDMULTI: |
| 2645 | case SIOCDELMULTI: |
| 2646 | if (ifp->if_flags & IFF_RUNNING) { |
| 2647 | bge_setmulti(sc); |
| 2648 | error = 0; |
| 2649 | } |
| 2650 | break; |
| 2651 | case SIOCSIFMEDIA: |
| 2652 | case SIOCGIFMEDIA: |
| 2653 | if (sc->bge_tbi) { |
| 2654 | error = ifmedia_ioctl(ifp, ifr, |
| 2655 | &sc->bge_ifmedia, command); |
| 2656 | } else { |
| 2657 | mii = device_get_softc(sc->bge_miibus); |
| 2658 | error = ifmedia_ioctl(ifp, ifr, |
| 2659 | &mii->mii_media, command); |
| 2660 | } |
| 2661 | break; |
| 2662 | case SIOCSIFCAP: |
| 2663 | mask = ifr->ifr_reqcap ^ ifp->if_capenable; |
| 2664 | if (mask & IFCAP_HWCSUM) { |
| 2665 | if (IFCAP_HWCSUM & ifp->if_capenable) |
| 2666 | ifp->if_capenable &= ~IFCAP_HWCSUM; |
| 2667 | else |
| 2668 | ifp->if_capenable |= IFCAP_HWCSUM; |
| 2669 | } |
| 2670 | error = 0; |
| 2671 | break; |
| 2672 | default: |
| 2673 | error = EINVAL; |
| 2674 | break; |
| 2675 | } |
| 2676 | |
| 2677 | splx(s); |
| 2678 | |
| 2679 | return(error); |
| 2680 | } |
| 2681 | |
| 2682 | static void |
| 2683 | bge_watchdog(struct ifnet *ifp) |
| 2684 | { |
| 2685 | struct bge_softc *sc = ifp->if_softc; |
| 2686 | |
| 2687 | if_printf(ifp, "watchdog timeout -- resetting\n"); |
| 2688 | |
| 2689 | ifp->if_flags &= ~IFF_RUNNING; |
| 2690 | bge_init(sc); |
| 2691 | |
| 2692 | ifp->if_oerrors++; |
| 2693 | } |
| 2694 | |
| 2695 | /* |
| 2696 | * Stop the adapter and free any mbufs allocated to the |
| 2697 | * RX and TX lists. |
| 2698 | */ |
| 2699 | static void |
| 2700 | bge_stop(struct bge_softc *sc) |
| 2701 | { |
| 2702 | struct ifnet *ifp = &sc->arpcom.ac_if; |
| 2703 | struct ifmedia_entry *ifm; |
| 2704 | struct mii_data *mii = NULL; |
| 2705 | int mtmp, itmp; |
| 2706 | |
| 2707 | if (!sc->bge_tbi) |
| 2708 | mii = device_get_softc(sc->bge_miibus); |
| 2709 | |
| 2710 | callout_stop(&sc->bge_stat_timer); |
| 2711 | |
| 2712 | /* |
| 2713 | * Disable all of the receiver blocks |
| 2714 | */ |
| 2715 | BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); |
| 2716 | BGE_CLRBIT(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); |
| 2717 | BGE_CLRBIT(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); |
| 2718 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 2719 | BGE_CLRBIT(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); |
| 2720 | BGE_CLRBIT(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE); |
| 2721 | BGE_CLRBIT(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); |
| 2722 | BGE_CLRBIT(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE); |
| 2723 | |
| 2724 | /* |
| 2725 | * Disable all of the transmit blocks |
| 2726 | */ |
| 2727 | BGE_CLRBIT(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); |
| 2728 | BGE_CLRBIT(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); |
| 2729 | BGE_CLRBIT(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); |
| 2730 | BGE_CLRBIT(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE); |
| 2731 | BGE_CLRBIT(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); |
| 2732 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 2733 | BGE_CLRBIT(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); |
| 2734 | BGE_CLRBIT(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); |
| 2735 | |
| 2736 | /* |
| 2737 | * Shut down all of the memory managers and related |
| 2738 | * state machines. |
| 2739 | */ |
| 2740 | BGE_CLRBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); |
| 2741 | BGE_CLRBIT(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE); |
| 2742 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 2743 | BGE_CLRBIT(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); |
| 2744 | CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); |
| 2745 | CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); |
| 2746 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) { |
| 2747 | BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE); |
| 2748 | BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); |
| 2749 | } |
| 2750 | |
| 2751 | /* Disable host interrupts. */ |
| 2752 | BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); |
| 2753 | CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); |
| 2754 | |
| 2755 | /* |
| 2756 | * Tell firmware we're shutting down. |
| 2757 | */ |
| 2758 | BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); |
| 2759 | |
| 2760 | /* Free the RX lists. */ |
| 2761 | bge_free_rx_ring_std(sc); |
| 2762 | |
| 2763 | /* Free jumbo RX list. */ |
| 2764 | if (sc->bge_asicrev != BGE_ASICREV_BCM5705) |
| 2765 | bge_free_rx_ring_jumbo(sc); |
| 2766 | |
| 2767 | /* Free TX buffers. */ |
| 2768 | bge_free_tx_ring(sc); |
| 2769 | |
| 2770 | /* |
| 2771 | * Isolate/power down the PHY, but leave the media selection |
| 2772 | * unchanged so that things will be put back to normal when |
| 2773 | * we bring the interface back up. |
| 2774 | */ |
| 2775 | if (!sc->bge_tbi) { |
| 2776 | itmp = ifp->if_flags; |
| 2777 | ifp->if_flags |= IFF_UP; |
| 2778 | ifm = mii->mii_media.ifm_cur; |
| 2779 | mtmp = ifm->ifm_media; |
| 2780 | ifm->ifm_media = IFM_ETHER|IFM_NONE; |
| 2781 | mii_mediachg(mii); |
| 2782 | ifm->ifm_media = mtmp; |
| 2783 | ifp->if_flags = itmp; |
| 2784 | } |
| 2785 | |
| 2786 | sc->bge_link = 0; |
| 2787 | |
| 2788 | sc->bge_tx_saved_considx = BGE_TXCONS_UNSET; |
| 2789 | |
| 2790 | ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); |
| 2791 | } |
| 2792 | |
| 2793 | /* |
| 2794 | * Stop all chip I/O so that the kernel's probe routines don't |
| 2795 | * get confused by errant DMAs when rebooting. |
| 2796 | */ |
| 2797 | static void |
| 2798 | bge_shutdown(device_t dev) |
| 2799 | { |
| 2800 | struct bge_softc *sc = device_get_softc(dev); |
| 2801 | |
| 2802 | bge_stop(sc); |
| 2803 | bge_reset(sc); |
| 2804 | } |