sys/dev/netif/bnx/if_bnx.c

   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 1.3.2.39 2005/07/03 03:41:18 silby Exp $
  34  */
  35
  36
  37 #include "opt_polling.h"
  38
  39 #include <sys/param.h>
  40 #include <sys/bus.h>
  41 #include <sys/endian.h>
  42 #include <sys/kernel.h>
  43 #include <sys/interrupt.h>
  44 #include <sys/mbuf.h>
  45 #include <sys/malloc.h>
  46 #include <sys/queue.h>
  47 #include <sys/rman.h>
  48 #include <sys/serialize.h>
  49 #include <sys/socket.h>
  50 #include <sys/sockio.h>
  51 #include <sys/sysctl.h>
  52
  53 #include <net/bpf.h>
  54 #include <net/ethernet.h>
  55 #include <net/if.h>
  56 #include <net/if_arp.h>
  57 #include <net/if_dl.h>
  58 #include <net/if_media.h>
  59 #include <net/if_types.h>
  60 #include <net/ifq_var.h>
  61 #include <net/vlan/if_vlan_var.h>
  62 #include <net/vlan/if_vlan_ether.h>
  63
  64 #include <dev/netif/mii_layer/mii.h>
  65 #include <dev/netif/mii_layer/miivar.h>
  66 #include <dev/netif/mii_layer/brgphyreg.h>
  67
  68 #include <bus/pci/pcidevs.h>
  69 #include <bus/pci/pcireg.h>
  70 #include <bus/pci/pcivar.h>
  71
  72 #include <dev/netif/bge/if_bgereg.h>
  73 #include <dev/netif/bnx/if_bnxvar.h>
  74
  75 /* "device miibus" required.  See GENERIC if you get errors here. */
  76 #include "miibus_if.h"
  77
  78 #define BNX_CSUM_FEATURES       (CSUM_IP | CSUM_TCP | CSUM_UDP)
  79
  80 static const struct bnx_type {
  81         uint16_t                bnx_vid;
  82         uint16_t                bnx_did;
  83         char                    *bnx_name;
  84 } bnx_devs[] = {
  85         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5717,
  86                 "Broadcom BCM5717 Gigabit Ethernet" },
  87         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5718,
  88                 "Broadcom BCM5718 Gigabit Ethernet" },
  89         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5719,
  90                 "Broadcom BCM5719 Gigabit Ethernet" },
  91         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5720_ALT,
  92                 "Broadcom BCM5720 Gigabit Ethernet" },
  93
  94         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57761,
  95                 "Broadcom BCM57761 Gigabit Ethernet" },
  96         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57762,
  97                 "Broadcom BCM57762 Gigabit Ethernet" },
  98         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57765,
  99                 "Broadcom BCM57765 Gigabit Ethernet" },
 100         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57766,
 101                 "Broadcom BCM57766 Gigabit Ethernet" },
 102         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57781,
 103                 "Broadcom BCM57781 Gigabit Ethernet" },
 104         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57782,
 105                 "Broadcom BCM57782 Gigabit Ethernet" },
 106         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57785,
 107                 "Broadcom BCM57785 Gigabit Ethernet" },
 108         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57786,
 109                 "Broadcom BCM57786 Gigabit Ethernet" },
 110         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57791,
 111                 "Broadcom BCM57791 Fast Ethernet" },
 112         { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57795,
 113                 "Broadcom BCM57795 Fast Ethernet" },
 114
 115         { 0, 0, NULL }
 116 };
 117
 118 #define BNX_IS_JUMBO_CAPABLE(sc)        ((sc)->bnx_flags & BNX_FLAG_JUMBO)
 119 #define BNX_IS_5717_PLUS(sc)            ((sc)->bnx_flags & BNX_FLAG_5717_PLUS)
 120 #define BNX_IS_57765_PLUS(sc)           ((sc)->bnx_flags & BNX_FLAG_57765_PLUS)
 121 #define BNX_IS_57765_FAMILY(sc)  \
 122         ((sc)->bnx_flags & BNX_FLAG_57765_FAMILY)
 123
 124 typedef int     (*bnx_eaddr_fcn_t)(struct bnx_softc *, uint8_t[]);
 125
 126 static int      bnx_probe(device_t);
 127 static int      bnx_attach(device_t);
 128 static int      bnx_detach(device_t);
 129 static void     bnx_shutdown(device_t);
 130 static int      bnx_suspend(device_t);
 131 static int      bnx_resume(device_t);
 132 static int      bnx_miibus_readreg(device_t, int, int);
 133 static int      bnx_miibus_writereg(device_t, int, int, int);
 134 static void     bnx_miibus_statchg(device_t);
 135
 136 #ifdef DEVICE_POLLING
 137 static void     bnx_poll(struct ifnet *ifp, enum poll_cmd cmd, int count);
 138 #endif
 139 static void     bnx_intr_legacy(void *);
 140 static void     bnx_msi(void *);
 141 static void     bnx_msi_oneshot(void *);
 142 static void     bnx_intr(struct bnx_softc *);
 143 static void     bnx_enable_intr(struct bnx_softc *);
 144 static void     bnx_disable_intr(struct bnx_softc *);
 145 static void     bnx_txeof(struct bnx_softc *, uint16_t);
 146 static void     bnx_rxeof(struct bnx_softc *, uint16_t);
 147
 148 static void     bnx_start(struct ifnet *);
 149 static int      bnx_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 150 static void     bnx_init(void *);
 151 static void     bnx_stop(struct bnx_softc *);
 152 static void     bnx_watchdog(struct ifnet *);
 153 static int      bnx_ifmedia_upd(struct ifnet *);
 154 static void     bnx_ifmedia_sts(struct ifnet *, struct ifmediareq *);
 155 static void     bnx_tick(void *);
 156
 157 static int      bnx_alloc_jumbo_mem(struct bnx_softc *);
 158 static void     bnx_free_jumbo_mem(struct bnx_softc *);
 159 static struct bnx_jslot
 160                 *bnx_jalloc(struct bnx_softc *);
 161 static void     bnx_jfree(void *);
 162 static void     bnx_jref(void *);
 163 static int      bnx_newbuf_std(struct bnx_softc *, int, int);
 164 static int      bnx_newbuf_jumbo(struct bnx_softc *, int, int);
 165 static void     bnx_setup_rxdesc_std(struct bnx_softc *, int);
 166 static void     bnx_setup_rxdesc_jumbo(struct bnx_softc *, int);
 167 static int      bnx_init_rx_ring_std(struct bnx_softc *);
 168 static void     bnx_free_rx_ring_std(struct bnx_softc *);
 169 static int      bnx_init_rx_ring_jumbo(struct bnx_softc *);
 170 static void     bnx_free_rx_ring_jumbo(struct bnx_softc *);
 171 static void     bnx_free_tx_ring(struct bnx_softc *);
 172 static int      bnx_init_tx_ring(struct bnx_softc *);
 173 static int      bnx_dma_alloc(struct bnx_softc *);
 174 static void     bnx_dma_free(struct bnx_softc *);
 175 static int      bnx_dma_block_alloc(struct bnx_softc *, bus_size_t,
 176                     bus_dma_tag_t *, bus_dmamap_t *, void **, bus_addr_t *);
 177 static void     bnx_dma_block_free(bus_dma_tag_t, bus_dmamap_t, void *);
 178 static struct mbuf *
 179                 bnx_defrag_shortdma(struct mbuf *);
 180 static int      bnx_encap(struct bnx_softc *, struct mbuf **, uint32_t *);
 181
 182 static void     bnx_reset(struct bnx_softc *);
 183 static int      bnx_chipinit(struct bnx_softc *);
 184 static int      bnx_blockinit(struct bnx_softc *);
 185 static void     bnx_stop_block(struct bnx_softc *, bus_size_t, uint32_t);
 186 static void     bnx_enable_msi(struct bnx_softc *sc);
 187 static void     bnx_setmulti(struct bnx_softc *);
 188 static void     bnx_setpromisc(struct bnx_softc *);
 189 static void     bnx_stats_update_regs(struct bnx_softc *);
 190 static uint32_t bnx_dma_swap_options(struct bnx_softc *);
 191
 192 static uint32_t bnx_readmem_ind(struct bnx_softc *, uint32_t);
 193 static void     bnx_writemem_ind(struct bnx_softc *, uint32_t, uint32_t);
 194 #ifdef notdef
 195 static uint32_t bnx_readreg_ind(struct bnx_softc *, uint32_t);
 196 #endif
 197 static void     bnx_writereg_ind(struct bnx_softc *, uint32_t, uint32_t);
 198 static void     bnx_writemem_direct(struct bnx_softc *, uint32_t, uint32_t);
 199 static void     bnx_writembx(struct bnx_softc *, int, int);
 200 static uint8_t  bnx_nvram_getbyte(struct bnx_softc *, int, uint8_t *);
 201 static int      bnx_read_nvram(struct bnx_softc *, caddr_t, int, int);
 202 static uint8_t  bnx_eeprom_getbyte(struct bnx_softc *, uint32_t, uint8_t *);
 203 static int      bnx_read_eeprom(struct bnx_softc *, caddr_t, uint32_t, size_t);
 204
 205 static void     bnx_tbi_link_upd(struct bnx_softc *, uint32_t);
 206 static void     bnx_copper_link_upd(struct bnx_softc *, uint32_t);
 207 static void     bnx_autopoll_link_upd(struct bnx_softc *, uint32_t);
 208 static void     bnx_link_poll(struct bnx_softc *);
 209
 210 static int      bnx_get_eaddr_mem(struct bnx_softc *, uint8_t[]);
 211 static int      bnx_get_eaddr_nvram(struct bnx_softc *, uint8_t[]);
 212 static int      bnx_get_eaddr_eeprom(struct bnx_softc *, uint8_t[]);
 213 static int      bnx_get_eaddr(struct bnx_softc *, uint8_t[]);
 214
 215 static void     bnx_coal_change(struct bnx_softc *);
 216 static int      bnx_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS);
 217 static int      bnx_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS);
 218 static int      bnx_sysctl_rx_coal_bds(SYSCTL_HANDLER_ARGS);
 219 static int      bnx_sysctl_tx_coal_bds(SYSCTL_HANDLER_ARGS);
 220 static int      bnx_sysctl_rx_coal_bds_int(SYSCTL_HANDLER_ARGS);
 221 static int      bnx_sysctl_tx_coal_bds_int(SYSCTL_HANDLER_ARGS);
 222 static int      bnx_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *,
 223                     int, int, uint32_t);
 224
 225 static int      bnx_msi_enable = 1;
 226 TUNABLE_INT("hw.bnx.msi.enable", &bnx_msi_enable);
 227
 228 static device_method_t bnx_methods[] = {
 229         /* Device interface */
 230         DEVMETHOD(device_probe,         bnx_probe),
 231         DEVMETHOD(device_attach,        bnx_attach),
 232         DEVMETHOD(device_detach,        bnx_detach),
 233         DEVMETHOD(device_shutdown,      bnx_shutdown),
 234         DEVMETHOD(device_suspend,       bnx_suspend),
 235         DEVMETHOD(device_resume,        bnx_resume),
 236
 237         /* bus interface */
 238         DEVMETHOD(bus_print_child,      bus_generic_print_child),
 239         DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
 240
 241         /* MII interface */
 242         DEVMETHOD(miibus_readreg,       bnx_miibus_readreg),
 243         DEVMETHOD(miibus_writereg,      bnx_miibus_writereg),
 244         DEVMETHOD(miibus_statchg,       bnx_miibus_statchg),
 245
 246         { 0, 0 }
 247 };
 248
 249 static DEFINE_CLASS_0(bnx, bnx_driver, bnx_methods, sizeof(struct bnx_softc));
 250 static devclass_t bnx_devclass;
 251
 252 DECLARE_DUMMY_MODULE(if_bnx);
 253 DRIVER_MODULE(if_bnx, pci, bnx_driver, bnx_devclass, NULL, NULL);
 254 DRIVER_MODULE(miibus, bnx, miibus_driver, miibus_devclass, NULL, NULL);
 255
 256 static uint32_t
 257 bnx_readmem_ind(struct bnx_softc *sc, uint32_t off)
 258 {
 259         device_t dev = sc->bnx_dev;
 260         uint32_t val;
 261
 262         if (sc->bnx_asicrev == BGE_ASICREV_BCM5906 &&
 263             off >= BGE_STATS_BLOCK && off < BGE_SEND_RING_1_TO_4)
 264                 return 0;
 265
 266         pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4);
 267         val = pci_read_config(dev, BGE_PCI_MEMWIN_DATA, 4);
 268         pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4);
 269         return (val);
 270 }
 271
 272 static void
 273 bnx_writemem_ind(struct bnx_softc *sc, uint32_t off, uint32_t val)
 274 {
 275         device_t dev = sc->bnx_dev;
 276
 277         if (sc->bnx_asicrev == BGE_ASICREV_BCM5906 &&
 278             off >= BGE_STATS_BLOCK && off < BGE_SEND_RING_1_TO_4)
 279                 return;
 280
 281         pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4);
 282         pci_write_config(dev, BGE_PCI_MEMWIN_DATA, val, 4);
 283         pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4);
 284 }
 285
 286 #ifdef notdef
 287 static uint32_t
 288 bnx_readreg_ind(struct bnx_softc *sc, uin32_t off)
 289 {
 290         device_t dev = sc->bnx_dev;
 291
 292         pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4);
 293         return(pci_read_config(dev, BGE_PCI_REG_DATA, 4));
 294 }
 295 #endif
 296
 297 static void
 298 bnx_writereg_ind(struct bnx_softc *sc, uint32_t off, uint32_t val)
 299 {
 300         device_t dev = sc->bnx_dev;
 301
 302         pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4);
 303         pci_write_config(dev, BGE_PCI_REG_DATA, val, 4);
 304 }
 305
 306 static void
 307 bnx_writemem_direct(struct bnx_softc *sc, uint32_t off, uint32_t val)
 308 {
 309         CSR_WRITE_4(sc, off, val);
 310 }
 311
 312 static void
 313 bnx_writembx(struct bnx_softc *sc, int off, int val)
 314 {
 315         if (sc->bnx_asicrev == BGE_ASICREV_BCM5906)
 316                 off += BGE_LPMBX_IRQ0_HI - BGE_MBX_IRQ0_HI;
 317
 318         CSR_WRITE_4(sc, off, val);
 319 }
 320
 321 static uint8_t
 322 bnx_nvram_getbyte(struct bnx_softc *sc, int addr, uint8_t *dest)
 323 {
 324         uint32_t access, byte = 0;
 325         int i;
 326
 327         /* Lock. */
 328         CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_SET1);
 329         for (i = 0; i < 8000; i++) {
 330                 if (CSR_READ_4(sc, BGE_NVRAM_SWARB) & BGE_NVRAMSWARB_GNT1)
 331                         break;
 332                 DELAY(20);
 333         }
 334         if (i == 8000)
 335                 return (1);
 336
 337         /* Enable access. */
 338         access = CSR_READ_4(sc, BGE_NVRAM_ACCESS);
 339         CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access | BGE_NVRAMACC_ENABLE);
 340
 341         CSR_WRITE_4(sc, BGE_NVRAM_ADDR, addr & 0xfffffffc);
 342         CSR_WRITE_4(sc, BGE_NVRAM_CMD, BGE_NVRAM_READCMD);
 343         for (i = 0; i < BNX_TIMEOUT * 10; i++) {
 344                 DELAY(10);
 345                 if (CSR_READ_4(sc, BGE_NVRAM_CMD) & BGE_NVRAMCMD_DONE) {
 346                         DELAY(10);
 347                         break;
 348                 }
 349         }
 350
 351         if (i == BNX_TIMEOUT * 10) {
 352                 if_printf(&sc->arpcom.ac_if, "nvram read timed out\n");
 353                 return (1);
 354         }
 355
 356         /* Get result. */
 357         byte = CSR_READ_4(sc, BGE_NVRAM_RDDATA);
 358
 359         *dest = (bswap32(byte) >> ((addr % 4) * 8)) & 0xFF;
 360
 361         /* Disable access. */
 362         CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access);
 363
 364         /* Unlock. */
 365         CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_CLR1);
 366         CSR_READ_4(sc, BGE_NVRAM_SWARB);
 367
 368         return (0);
 369 }
 370
 371 /*
 372  * Read a sequence of bytes from NVRAM.
 373  */
 374 static int
 375 bnx_read_nvram(struct bnx_softc *sc, caddr_t dest, int off, int cnt)
 376 {
 377         int err = 0, i;
 378         uint8_t byte = 0;
 379
 380         if (sc->bnx_asicrev != BGE_ASICREV_BCM5906)
 381                 return (1);
 382
 383         for (i = 0; i < cnt; i++) {
 384                 err = bnx_nvram_getbyte(sc, off + i, &byte);
 385                 if (err)
 386                         break;
 387                 *(dest + i) = byte;
 388         }
 389
 390         return (err ? 1 : 0);
 391 }
 392
 393 /*
 394  * Read a byte of data stored in the EEPROM at address 'addr.' The
 395  * BCM570x supports both the traditional bitbang interface and an
 396  * auto access interface for reading the EEPROM. We use the auto
 397  * access method.
 398  */
 399 static uint8_t
 400 bnx_eeprom_getbyte(struct bnx_softc *sc, uint32_t addr, uint8_t *dest)
 401 {
 402         int i;
 403         uint32_t byte = 0;
 404
 405         /*
 406          * Enable use of auto EEPROM access so we can avoid
 407          * having to use the bitbang method.
 408          */
 409         BNX_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
 410
 411         /* Reset the EEPROM, load the clock period. */
 412         CSR_WRITE_4(sc, BGE_EE_ADDR,
 413             BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL));
 414         DELAY(20);
 415
 416         /* Issue the read EEPROM command. */
 417         CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr);
 418
 419         /* Wait for completion */
 420         for(i = 0; i < BNX_TIMEOUT * 10; i++) {
 421                 DELAY(10);
 422                 if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE)
 423                         break;
 424         }
 425
 426         if (i == BNX_TIMEOUT) {
 427                 if_printf(&sc->arpcom.ac_if, "eeprom read timed out\n");
 428                 return(1);
 429         }
 430
 431         /* Get result. */
 432         byte = CSR_READ_4(sc, BGE_EE_DATA);
 433
 434         *dest = (byte >> ((addr % 4) * 8)) & 0xFF;
 435
 436         return(0);
 437 }
 438
 439 /*
 440  * Read a sequence of bytes from the EEPROM.
 441  */
 442 static int
 443 bnx_read_eeprom(struct bnx_softc *sc, caddr_t dest, uint32_t off, size_t len)
 444 {
 445         size_t i;
 446         int err;
 447         uint8_t byte;
 448
 449         for (byte = 0, err = 0, i = 0; i < len; i++) {
 450                 err = bnx_eeprom_getbyte(sc, off + i, &byte);
 451                 if (err)
 452                         break;
 453                 *(dest + i) = byte;
 454         }
 455
 456         return(err ? 1 : 0);
 457 }
 458
 459 static int
 460 bnx_miibus_readreg(device_t dev, int phy, int reg)
 461 {
 462         struct bnx_softc *sc = device_get_softc(dev);
 463         uint32_t val;
 464         int i;
 465
 466         KASSERT(phy == sc->bnx_phyno,
 467             ("invalid phyno %d, should be %d", phy, sc->bnx_phyno));
 468
 469         /* Clear the autopoll bit if set, otherwise may trigger PCI errors. */
 470         if (sc->bnx_mi_mode & BGE_MIMODE_AUTOPOLL) {
 471                 CSR_WRITE_4(sc, BGE_MI_MODE,
 472                     sc->bnx_mi_mode & ~BGE_MIMODE_AUTOPOLL);
 473                 DELAY(80);
 474         }
 475
 476         CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ | BGE_MICOMM_BUSY |
 477             BGE_MIPHY(phy) | BGE_MIREG(reg));
 478
 479         /* Poll for the PHY register access to complete. */
 480         for (i = 0; i < BNX_TIMEOUT; i++) {
 481                 DELAY(10);
 482                 val = CSR_READ_4(sc, BGE_MI_COMM);
 483                 if ((val & BGE_MICOMM_BUSY) == 0) {
 484                         DELAY(5);
 485                         val = CSR_READ_4(sc, BGE_MI_COMM);
 486                         break;
 487                 }
 488         }
 489         if (i == BNX_TIMEOUT) {
 490                 if_printf(&sc->arpcom.ac_if, "PHY read timed out "
 491                     "(phy %d, reg %d, val 0x%08x)\n", phy, reg, val);
 492                 val = 0;
 493         }
 494
 495         /* Restore the autopoll bit if necessary. */
 496         if (sc->bnx_mi_mode & BGE_MIMODE_AUTOPOLL) {
 497                 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bnx_mi_mode);
 498                 DELAY(80);
 499         }
 500
 501         if (val & BGE_MICOMM_READFAIL)
 502                 return 0;
 503
 504         return (val & 0xFFFF);
 505 }
 506
 507 static int
 508 bnx_miibus_writereg(device_t dev, int phy, int reg, int val)
 509 {
 510         struct bnx_softc *sc = device_get_softc(dev);
 511         int i;
 512
 513         KASSERT(phy == sc->bnx_phyno,
 514             ("invalid phyno %d, should be %d", phy, sc->bnx_phyno));
 515
 516         if (sc->bnx_asicrev == BGE_ASICREV_BCM5906 &&
 517             (reg == BRGPHY_MII_1000CTL || reg == BRGPHY_MII_AUXCTL))
 518                return 0;
 519
 520         /* Clear the autopoll bit if set, otherwise may trigger PCI errors. */
 521         if (sc->bnx_mi_mode & BGE_MIMODE_AUTOPOLL) {
 522                 CSR_WRITE_4(sc, BGE_MI_MODE,
 523                     sc->bnx_mi_mode & ~BGE_MIMODE_AUTOPOLL);
 524                 DELAY(80);
 525         }
 526
 527         CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE | BGE_MICOMM_BUSY |
 528             BGE_MIPHY(phy) | BGE_MIREG(reg) | val);
 529
 530         for (i = 0; i < BNX_TIMEOUT; i++) {
 531                 DELAY(10);
 532                 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) {
 533                         DELAY(5);
 534                         CSR_READ_4(sc, BGE_MI_COMM); /* dummy read */
 535                         break;
 536                 }
 537         }
 538         if (i == BNX_TIMEOUT) {
 539                 if_printf(&sc->arpcom.ac_if, "PHY write timed out "
 540                     "(phy %d, reg %d, val %d)\n", phy, reg, val);
 541         }
 542
 543         /* Restore the autopoll bit if necessary. */
 544         if (sc->bnx_mi_mode & BGE_MIMODE_AUTOPOLL) {
 545                 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bnx_mi_mode);
 546                 DELAY(80);
 547         }
 548
 549         return 0;
 550 }
 551
 552 static void
 553 bnx_miibus_statchg(device_t dev)
 554 {
 555         struct bnx_softc *sc;
 556         struct mii_data *mii;
 557
 558         sc = device_get_softc(dev);
 559         mii = device_get_softc(sc->bnx_miibus);
 560
 561         if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
 562             (IFM_ACTIVE | IFM_AVALID)) {
 563                 switch (IFM_SUBTYPE(mii->mii_media_active)) {
 564                 case IFM_10_T:
 565                 case IFM_100_TX:
 566                         sc->bnx_link = 1;
 567                         break;
 568                 case IFM_1000_T:
 569                 case IFM_1000_SX:
 570                 case IFM_2500_SX:
 571                         if (sc->bnx_asicrev != BGE_ASICREV_BCM5906)
 572                                 sc->bnx_link = 1;
 573                         else
 574                                 sc->bnx_link = 0;
 575                         break;
 576                 default:
 577                         sc->bnx_link = 0;
 578                         break;
 579                 }
 580         } else {
 581                 sc->bnx_link = 0;
 582         }
 583         if (sc->bnx_link == 0)
 584                 return;
 585
 586         BNX_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE);
 587         if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T ||
 588             IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) {
 589                 BNX_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII);
 590         } else {
 591                 BNX_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII);
 592         }
 593
 594         if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) {
 595                 BNX_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
 596         } else {
 597                 BNX_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
 598         }
 599 }
 600
 601 /*
 602  * Memory management for jumbo frames.
 603  */
 604 static int
 605 bnx_alloc_jumbo_mem(struct bnx_softc *sc)
 606 {
 607         struct ifnet *ifp = &sc->arpcom.ac_if;
 608         struct bnx_jslot *entry;
 609         uint8_t *ptr;
 610         bus_addr_t paddr;
 611         int i, error;
 612
 613         /*
 614          * Create tag for jumbo mbufs.
 615          * This is really a bit of a kludge. We allocate a special
 616          * jumbo buffer pool which (thanks to the way our DMA
 617          * memory allocation works) will consist of contiguous
 618          * pages. This means that even though a jumbo buffer might
 619          * be larger than a page size, we don't really need to
 620          * map it into more than one DMA segment. However, the
 621          * default mbuf tag will result in multi-segment mappings,
 622          * so we have to create a special jumbo mbuf tag that
 623          * lets us get away with mapping the jumbo buffers as
 624          * a single segment. I think eventually the driver should
 625          * be changed so that it uses ordinary mbufs and cluster
 626          * buffers, i.e. jumbo frames can span multiple DMA
 627          * descriptors. But that's a project for another day.
 628          */
 629
 630         /*
 631          * Create DMA stuffs for jumbo RX ring.
 632          */
 633         error = bnx_dma_block_alloc(sc, BGE_JUMBO_RX_RING_SZ,
 634                                     &sc->bnx_cdata.bnx_rx_jumbo_ring_tag,
 635                                     &sc->bnx_cdata.bnx_rx_jumbo_ring_map,
 636                                     (void *)&sc->bnx_ldata.bnx_rx_jumbo_ring,
 637                                     &sc->bnx_ldata.bnx_rx_jumbo_ring_paddr);
 638         if (error) {
 639                 if_printf(ifp, "could not create jumbo RX ring\n");
 640                 return error;
 641         }
 642
 643         /*
 644          * Create DMA stuffs for jumbo buffer block.
 645          */
 646         error = bnx_dma_block_alloc(sc, BNX_JMEM,
 647                                     &sc->bnx_cdata.bnx_jumbo_tag,
 648                                     &sc->bnx_cdata.bnx_jumbo_map,
 649                                     (void **)&sc->bnx_ldata.bnx_jumbo_buf,
 650                                     &paddr);
 651         if (error) {
 652                 if_printf(ifp, "could not create jumbo buffer\n");
 653                 return error;
 654         }
 655
 656         SLIST_INIT(&sc->bnx_jfree_listhead);
 657
 658         /*
 659          * Now divide it up into 9K pieces and save the addresses
 660          * in an array. Note that we play an evil trick here by using
 661          * the first few bytes in the buffer to hold the the address
 662          * of the softc structure for this interface. This is because
 663          * bnx_jfree() needs it, but it is called by the mbuf management
 664          * code which will not pass it to us explicitly.
 665          */
 666         for (i = 0, ptr = sc->bnx_ldata.bnx_jumbo_buf; i < BNX_JSLOTS; i++) {
 667                 entry = &sc->bnx_cdata.bnx_jslots[i];
 668                 entry->bnx_sc = sc;
 669                 entry->bnx_buf = ptr;
 670                 entry->bnx_paddr = paddr;
 671                 entry->bnx_inuse = 0;
 672                 entry->bnx_slot = i;
 673                 SLIST_INSERT_HEAD(&sc->bnx_jfree_listhead, entry, jslot_link);
 674
 675                 ptr += BNX_JLEN;
 676                 paddr += BNX_JLEN;
 677         }
 678         return 0;
 679 }
 680
 681 static void
 682 bnx_free_jumbo_mem(struct bnx_softc *sc)
 683 {
 684         /* Destroy jumbo RX ring. */
 685         bnx_dma_block_free(sc->bnx_cdata.bnx_rx_jumbo_ring_tag,
 686                            sc->bnx_cdata.bnx_rx_jumbo_ring_map,
 687                            sc->bnx_ldata.bnx_rx_jumbo_ring);
 688
 689         /* Destroy jumbo buffer block. */
 690         bnx_dma_block_free(sc->bnx_cdata.bnx_jumbo_tag,
 691                            sc->bnx_cdata.bnx_jumbo_map,
 692                            sc->bnx_ldata.bnx_jumbo_buf);
 693 }
 694
 695 /*
 696  * Allocate a jumbo buffer.
 697  */
 698 static struct bnx_jslot *
 699 bnx_jalloc(struct bnx_softc *sc)
 700 {
 701         struct bnx_jslot *entry;
 702
 703         lwkt_serialize_enter(&sc->bnx_jslot_serializer);
 704         entry = SLIST_FIRST(&sc->bnx_jfree_listhead);
 705         if (entry) {
 706                 SLIST_REMOVE_HEAD(&sc->bnx_jfree_listhead, jslot_link);
 707                 entry->bnx_inuse = 1;
 708         } else {
 709                 if_printf(&sc->arpcom.ac_if, "no free jumbo buffers\n");
 710         }
 711         lwkt_serialize_exit(&sc->bnx_jslot_serializer);
 712         return(entry);
 713 }
 714
 715 /*
 716  * Adjust usage count on a jumbo buffer.
 717  */
 718 static void
 719 bnx_jref(void *arg)
 720 {
 721         struct bnx_jslot *entry = (struct bnx_jslot *)arg;
 722         struct bnx_softc *sc = entry->bnx_sc;
 723
 724         if (sc == NULL)
 725                 panic("bnx_jref: can't find softc pointer!");
 726
 727         if (&sc->bnx_cdata.bnx_jslots[entry->bnx_slot] != entry) {
 728                 panic("bnx_jref: asked to reference buffer "
 729                     "that we don't manage!");
 730         } else if (entry->bnx_inuse == 0) {
 731                 panic("bnx_jref: buffer already free!");
 732         } else {
 733                 atomic_add_int(&entry->bnx_inuse, 1);
 734         }
 735 }
 736
 737 /*
 738  * Release a jumbo buffer.
 739  */
 740 static void
 741 bnx_jfree(void *arg)
 742 {
 743         struct bnx_jslot *entry = (struct bnx_jslot *)arg;
 744         struct bnx_softc *sc = entry->bnx_sc;
 745
 746         if (sc == NULL)
 747                 panic("bnx_jfree: can't find softc pointer!");
 748
 749         if (&sc->bnx_cdata.bnx_jslots[entry->bnx_slot] != entry) {
 750                 panic("bnx_jfree: asked to free buffer that we don't manage!");
 751         } else if (entry->bnx_inuse == 0) {
 752                 panic("bnx_jfree: buffer already free!");
 753         } else {
 754                 /*
 755                  * Possible MP race to 0, use the serializer.  The atomic insn
 756                  * is still needed for races against bnx_jref().
 757                  */
 758                 lwkt_serialize_enter(&sc->bnx_jslot_serializer);
 759                 atomic_subtract_int(&entry->bnx_inuse, 1);
 760                 if (entry->bnx_inuse == 0) {
 761                         SLIST_INSERT_HEAD(&sc->bnx_jfree_listhead,
 762                                           entry, jslot_link);
 763                 }
 764                 lwkt_serialize_exit(&sc->bnx_jslot_serializer);
 765         }
 766 }
 767
 768
 769 /*
 770  * Intialize a standard receive ring descriptor.
 771  */
 772 static int
 773 bnx_newbuf_std(struct bnx_softc *sc, int i, int init)
 774 {
 775         struct mbuf *m_new = NULL;
 776         bus_dma_segment_t seg;
 777         bus_dmamap_t map;
 778         int error, nsegs;
 779
 780         m_new = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
 781         if (m_new == NULL)
 782                 return ENOBUFS;
 783         m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
 784         m_adj(m_new, ETHER_ALIGN);
 785
 786         error = bus_dmamap_load_mbuf_segment(sc->bnx_cdata.bnx_rx_mtag,
 787                         sc->bnx_cdata.bnx_rx_tmpmap, m_new,
 788                         &seg, 1, &nsegs, BUS_DMA_NOWAIT);
 789         if (error) {
 790                 m_freem(m_new);
 791                 return error;
 792         }
 793
 794         if (!init) {
 795                 bus_dmamap_sync(sc->bnx_cdata.bnx_rx_mtag,
 796                                 sc->bnx_cdata.bnx_rx_std_dmamap[i],
 797                                 BUS_DMASYNC_POSTREAD);
 798                 bus_dmamap_unload(sc->bnx_cdata.bnx_rx_mtag,
 799                         sc->bnx_cdata.bnx_rx_std_dmamap[i]);
 800         }
 801
 802         map = sc->bnx_cdata.bnx_rx_tmpmap;
 803         sc->bnx_cdata.bnx_rx_tmpmap = sc->bnx_cdata.bnx_rx_std_dmamap[i];
 804         sc->bnx_cdata.bnx_rx_std_dmamap[i] = map;
 805
 806         sc->bnx_cdata.bnx_rx_std_chain[i].bnx_mbuf = m_new;
 807         sc->bnx_cdata.bnx_rx_std_chain[i].bnx_paddr = seg.ds_addr;
 808
 809         bnx_setup_rxdesc_std(sc, i);
 810         return 0;
 811 }
 812
 813 static void
 814 bnx_setup_rxdesc_std(struct bnx_softc *sc, int i)
 815 {
 816         struct bnx_rxchain *rc;
 817         struct bge_rx_bd *r;
 818
 819         rc = &sc->bnx_cdata.bnx_rx_std_chain[i];
 820         r = &sc->bnx_ldata.bnx_rx_std_ring[i];
 821
 822         r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bnx_paddr);
 823         r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bnx_paddr);
 824         r->bge_len = rc->bnx_mbuf->m_len;
 825         r->bge_idx = i;
 826         r->bge_flags = BGE_RXBDFLAG_END;
 827 }
 828
 829 /*
 830  * Initialize a jumbo receive ring descriptor. This allocates
 831  * a jumbo buffer from the pool managed internally by the driver.
 832  */
 833 static int
 834 bnx_newbuf_jumbo(struct bnx_softc *sc, int i, int init)
 835 {
 836         struct mbuf *m_new = NULL;
 837         struct bnx_jslot *buf;
 838         bus_addr_t paddr;
 839
 840         /* Allocate the mbuf. */
 841         MGETHDR(m_new, init ? MB_WAIT : MB_DONTWAIT, MT_DATA);
 842         if (m_new == NULL)
 843                 return ENOBUFS;
 844
 845         /* Allocate the jumbo buffer */
 846         buf = bnx_jalloc(sc);
 847         if (buf == NULL) {
 848                 m_freem(m_new);
 849                 return ENOBUFS;
 850         }
 851
 852         /* Attach the buffer to the mbuf. */
 853         m_new->m_ext.ext_arg = buf;
 854         m_new->m_ext.ext_buf = buf->bnx_buf;
 855         m_new->m_ext.ext_free = bnx_jfree;
 856         m_new->m_ext.ext_ref = bnx_jref;
 857         m_new->m_ext.ext_size = BNX_JUMBO_FRAMELEN;
 858
 859         m_new->m_flags |= M_EXT;
 860
 861         m_new->m_data = m_new->m_ext.ext_buf;
 862         m_new->m_len = m_new->m_pkthdr.len = m_new->m_ext.ext_size;
 863
 864         paddr = buf->bnx_paddr;
 865         m_adj(m_new, ETHER_ALIGN);
 866         paddr += ETHER_ALIGN;
 867
 868         /* Save necessary information */
 869         sc->bnx_cdata.bnx_rx_jumbo_chain[i].bnx_mbuf = m_new;
 870         sc->bnx_cdata.bnx_rx_jumbo_chain[i].bnx_paddr = paddr;
 871
 872         /* Set up the descriptor. */
 873         bnx_setup_rxdesc_jumbo(sc, i);
 874         return 0;
 875 }
 876
 877 static void
 878 bnx_setup_rxdesc_jumbo(struct bnx_softc *sc, int i)
 879 {
 880         struct bge_rx_bd *r;
 881         struct bnx_rxchain *rc;
 882
 883         r = &sc->bnx_ldata.bnx_rx_jumbo_ring[i];
 884         rc = &sc->bnx_cdata.bnx_rx_jumbo_chain[i];
 885
 886         r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bnx_paddr);
 887         r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bnx_paddr);
 888         r->bge_len = rc->bnx_mbuf->m_len;
 889         r->bge_idx = i;
 890         r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING;
 891 }
 892
 893 static int
 894 bnx_init_rx_ring_std(struct bnx_softc *sc)
 895 {
 896         int i, error;
 897
 898         for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
 899                 error = bnx_newbuf_std(sc, i, 1);
 900                 if (error)
 901                         return error;
 902         };
 903
 904         sc->bnx_std = BGE_STD_RX_RING_CNT - 1;
 905         bnx_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bnx_std);
 906
 907         return(0);
 908 }
 909
 910 static void
 911 bnx_free_rx_ring_std(struct bnx_softc *sc)
 912 {
 913         int i;
 914
 915         for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
 916                 struct bnx_rxchain *rc = &sc->bnx_cdata.bnx_rx_std_chain[i];
 917
 918                 if (rc->bnx_mbuf != NULL) {
 919                         bus_dmamap_unload(sc->bnx_cdata.bnx_rx_mtag,
 920                                           sc->bnx_cdata.bnx_rx_std_dmamap[i]);
 921                         m_freem(rc->bnx_mbuf);
 922                         rc->bnx_mbuf = NULL;
 923                 }
 924                 bzero(&sc->bnx_ldata.bnx_rx_std_ring[i],
 925                     sizeof(struct bge_rx_bd));
 926         }
 927 }
 928
 929 static int
 930 bnx_init_rx_ring_jumbo(struct bnx_softc *sc)
 931 {
 932         struct bge_rcb *rcb;
 933         int i, error;
 934
 935         for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
 936                 error = bnx_newbuf_jumbo(sc, i, 1);
 937                 if (error)
 938                         return error;
 939         };
 940
 941         sc->bnx_jumbo = BGE_JUMBO_RX_RING_CNT - 1;
 942
 943         rcb = &sc->bnx_ldata.bnx_info.bnx_jumbo_rx_rcb;
 944         rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 0);
 945         CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
 946
 947         bnx_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bnx_jumbo);
 948
 949         return(0);
 950 }
 951
 952 static void
 953 bnx_free_rx_ring_jumbo(struct bnx_softc *sc)
 954 {
 955         int i;
 956
 957         for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
 958                 struct bnx_rxchain *rc = &sc->bnx_cdata.bnx_rx_jumbo_chain[i];
 959
 960                 if (rc->bnx_mbuf != NULL) {
 961                         m_freem(rc->bnx_mbuf);
 962                         rc->bnx_mbuf = NULL;
 963                 }
 964                 bzero(&sc->bnx_ldata.bnx_rx_jumbo_ring[i],
 965                     sizeof(struct bge_rx_bd));
 966         }
 967 }
 968
 969 static void
 970 bnx_free_tx_ring(struct bnx_softc *sc)
 971 {
 972         int i;
 973
 974         for (i = 0; i < BGE_TX_RING_CNT; i++) {
 975                 if (sc->bnx_cdata.bnx_tx_chain[i] != NULL) {
 976                         bus_dmamap_unload(sc->bnx_cdata.bnx_tx_mtag,
 977                                           sc->bnx_cdata.bnx_tx_dmamap[i]);
 978                         m_freem(sc->bnx_cdata.bnx_tx_chain[i]);
 979                         sc->bnx_cdata.bnx_tx_chain[i] = NULL;
 980                 }
 981                 bzero(&sc->bnx_ldata.bnx_tx_ring[i],
 982                     sizeof(struct bge_tx_bd));
 983         }
 984 }
 985
 986 static int
 987 bnx_init_tx_ring(struct bnx_softc *sc)
 988 {
 989         sc->bnx_txcnt = 0;
 990         sc->bnx_tx_saved_considx = 0;
 991         sc->bnx_tx_prodidx = 0;
 992
 993         /* Initialize transmit producer index for host-memory send ring. */
 994         bnx_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bnx_tx_prodidx);
 995         bnx_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
 996
 997         return(0);
 998 }
 999
1000 static void
1001 bnx_setmulti(struct bnx_softc *sc)
1002 {
1003         struct ifnet *ifp;
1004         struct ifmultiaddr *ifma;
1005         uint32_t hashes[4] = { 0, 0, 0, 0 };
1006         int h, i;
1007
1008         ifp = &sc->arpcom.ac_if;
1009
1010         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1011                 for (i = 0; i < 4; i++)
1012                         CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF);
1013                 return;
1014         }
1015
1016         /* First, zot all the existing filters. */
1017         for (i = 0; i < 4; i++)
1018                 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0);
1019
1020         /* Now program new ones. */
1021         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1022                 if (ifma->ifma_addr->sa_family != AF_LINK)
1023                         continue;
1024                 h = ether_crc32_le(
1025                     LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1026                     ETHER_ADDR_LEN) & 0x7f;
1027                 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F);
1028         }
1029
1030         for (i = 0; i < 4; i++)
1031                 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]);
1032 }
1033
1034 /*
1035  * Do endian, PCI and DMA initialization. Also check the on-board ROM
1036  * self-test results.
1037  */
1038 static int
1039 bnx_chipinit(struct bnx_softc *sc)
1040 {
1041         uint32_t dma_rw_ctl, mode_ctl;
1042         int i;
1043
1044         /* Set endian type before we access any non-PCI registers. */
1045         pci_write_config(sc->bnx_dev, BGE_PCI_MISC_CTL,
1046             BGE_INIT | BGE_PCIMISCCTL_TAGGED_STATUS, 4);
1047
1048         /* Clear the MAC control register */
1049         CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
1050
1051         /*
1052          * Clear the MAC statistics block in the NIC's
1053          * internal memory.
1054          */
1055         for (i = BGE_STATS_BLOCK;
1056             i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t))
1057                 BNX_MEMWIN_WRITE(sc, i, 0);
1058
1059         for (i = BGE_STATUS_BLOCK;
1060             i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t))
1061                 BNX_MEMWIN_WRITE(sc, i, 0);
1062
1063         if (BNX_IS_57765_FAMILY(sc)) {
1064                 uint32_t val;
1065
1066                 if (sc->bnx_chipid == BGE_CHIPID_BCM57765_A0) {
1067                         mode_ctl = CSR_READ_4(sc, BGE_MODE_CTL);
1068                         val = mode_ctl & ~BGE_MODECTL_PCIE_PORTS;
1069
1070                         /* Access the lower 1K of PL PCI-E block registers. */
1071                         CSR_WRITE_4(sc, BGE_MODE_CTL,
1072                             val | BGE_MODECTL_PCIE_PL_SEL);
1073
1074                         val = CSR_READ_4(sc, BGE_PCIE_PL_LO_PHYCTL5);
1075                         val |= BGE_PCIE_PL_LO_PHYCTL5_DIS_L2CLKREQ;
1076                         CSR_WRITE_4(sc, BGE_PCIE_PL_LO_PHYCTL5, val);
1077
1078                         CSR_WRITE_4(sc, BGE_MODE_CTL, mode_ctl);
1079                 }
1080                 if (sc->bnx_chiprev != BGE_CHIPREV_57765_AX) {
1081                         mode_ctl = CSR_READ_4(sc, BGE_MODE_CTL);
1082                         val = mode_ctl & ~BGE_MODECTL_PCIE_PORTS;
1083
1084                         /* Access the lower 1K of DL PCI-E block registers. */
1085                         CSR_WRITE_4(sc, BGE_MODE_CTL,
1086                             val | BGE_MODECTL_PCIE_DL_SEL);
1087
1088                         val = CSR_READ_4(sc, BGE_PCIE_DL_LO_FTSMAX);
1089                         val &= ~BGE_PCIE_DL_LO_FTSMAX_MASK;
1090                         val |= BGE_PCIE_DL_LO_FTSMAX_VAL;
1091                         CSR_WRITE_4(sc, BGE_PCIE_DL_LO_FTSMAX, val);
1092
1093                         CSR_WRITE_4(sc, BGE_MODE_CTL, mode_ctl);
1094                 }
1095
1096                 val = CSR_READ_4(sc, BGE_CPMU_LSPD_10MB_CLK);
1097                 val &= ~BGE_CPMU_LSPD_10MB_MACCLK_MASK;
1098                 val |= BGE_CPMU_LSPD_10MB_MACCLK_6_25;
1099                 CSR_WRITE_4(sc, BGE_CPMU_LSPD_10MB_CLK, val);
1100         }
1101
1102         /*
1103          * Set up the PCI DMA control register.
1104          */
1105         dma_rw_ctl = pci_read_config(sc->bnx_dev, BGE_PCI_DMA_RW_CTL, 4);
1106         /*
1107          * Disable 32bytes cache alignment for DMA write to host memory
1108          *
1109          * NOTE:
1110          * 64bytes cache alignment for DMA write to host memory is still
1111          * enabled.
1112          */
1113         dma_rw_ctl |= BGE_PCIDMARWCTL_DIS_CACHE_ALIGNMENT;
1114         if (sc->bnx_chipid == BGE_CHIPID_BCM57765_A0)
1115                 dma_rw_ctl &= ~BGE_PCIDMARWCTL_CRDRDR_RDMA_MRRS_MSK;
1116         /*
1117          * Enable HW workaround for controllers that misinterpret
1118          * a status tag update and leave interrupts permanently
1119          * disabled.
1120          */
1121         if (sc->bnx_asicrev != BGE_ASICREV_BCM5717 &&
1122             !BNX_IS_57765_FAMILY(sc))
1123                 dma_rw_ctl |= BGE_PCIDMARWCTL_TAGGED_STATUS_WA;
1124         if (bootverbose) {
1125                 if_printf(&sc->arpcom.ac_if, "DMA read/write %#x\n",
1126                     dma_rw_ctl);
1127         }
1128         pci_write_config(sc->bnx_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4);
1129
1130         /*
1131          * Set up general mode register.
1132          */
1133         mode_ctl = bnx_dma_swap_options(sc) | BGE_MODECTL_MAC_ATTN_INTR |
1134             BGE_MODECTL_HOST_SEND_BDS | BGE_MODECTL_TX_NO_PHDR_CSUM;
1135         CSR_WRITE_4(sc, BGE_MODE_CTL, mode_ctl);
1136
1137         /*
1138          * Disable memory write invalidate.  Apparently it is not supported
1139          * properly by these devices.  Also ensure that INTx isn't disabled,
1140          * as these chips need it even when using MSI.
1141          */
1142         PCI_CLRBIT(sc->bnx_dev, BGE_PCI_CMD,
1143             (PCIM_CMD_MWRICEN | PCIM_CMD_INTxDIS), 4);
1144
1145         /* Set the timer prescaler (always 66Mhz) */
1146         CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/);
1147
1148         if (sc->bnx_asicrev == BGE_ASICREV_BCM5906) {
1149                 DELAY(40);      /* XXX */
1150
1151                 /* Put PHY into ready state */
1152                 BNX_CLRBIT(sc, BGE_MISC_CFG, BGE_MISCCFG_EPHY_IDDQ);
1153                 CSR_READ_4(sc, BGE_MISC_CFG); /* Flush */
1154                 DELAY(40);
1155         }
1156
1157         return(0);
1158 }
1159
1160 static int
1161 bnx_blockinit(struct bnx_softc *sc)
1162 {
1163         struct bge_rcb *rcb;
1164         bus_size_t vrcb;
1165         bge_hostaddr taddr;
1166         uint32_t val;
1167         int i, limit;
1168
1169         /*
1170          * Initialize the memory window pointer register so that
1171          * we can access the first 32K of internal NIC RAM. This will
1172          * allow us to set up the TX send ring RCBs and the RX return
1173          * ring RCBs, plus other things which live in NIC memory.
1174          */
1175         CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0);
1176
1177         /* Configure mbuf pool watermarks */
1178         if (BNX_IS_57765_PLUS(sc)) {
1179                 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1180                 if (sc->arpcom.ac_if.if_mtu > ETHERMTU) {
1181                         CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x7e);
1182                         CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0xea);
1183                 } else {
1184                         CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x2a);
1185                         CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0xa0);
1186                 }
1187         } else if (sc->bnx_asicrev == BGE_ASICREV_BCM5906) {
1188                 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1189                 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x04);
1190                 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x10);
1191         } else {
1192                 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1193                 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10);
1194                 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1195         }
1196
1197         /* Configure DMA resource watermarks */
1198         CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5);
1199         CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10);
1200
1201         /* Enable buffer manager */
1202         val = BGE_BMANMODE_ENABLE | BGE_BMANMODE_LOMBUF_ATTN;
1203         /*
1204          * Change the arbitration algorithm of TXMBUF read request to
1205          * round-robin instead of priority based for BCM5719.  When
1206          * TXFIFO is almost empty, RDMA will hold its request until
1207          * TXFIFO is not almost empty.
1208          */
1209         if (sc->bnx_asicrev == BGE_ASICREV_BCM5719)
1210                 val |= BGE_BMANMODE_NO_TX_UNDERRUN;
1211         if (sc->bnx_asicrev == BGE_ASICREV_BCM5717 ||
1212             sc->bnx_chipid == BGE_CHIPID_BCM5719_A0 ||
1213             sc->bnx_chipid == BGE_CHIPID_BCM5720_A0)
1214                 val |= BGE_BMANMODE_LOMBUF_ATTN;
1215         CSR_WRITE_4(sc, BGE_BMAN_MODE, val);
1216
1217         /* Poll for buffer manager start indication */
1218         for (i = 0; i < BNX_TIMEOUT; i++) {
1219                 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE)
1220                         break;
1221                 DELAY(10);
1222         }
1223
1224         if (i == BNX_TIMEOUT) {
1225                 if_printf(&sc->arpcom.ac_if,
1226                           "buffer manager failed to start\n");
1227                 return(ENXIO);
1228         }
1229
1230         /* Enable flow-through queues */
1231         CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
1232         CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
1233
1234         /* Wait until queue initialization is complete */
1235         for (i = 0; i < BNX_TIMEOUT; i++) {
1236                 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0)
1237                         break;
1238                 DELAY(10);
1239         }
1240
1241         if (i == BNX_TIMEOUT) {
1242                 if_printf(&sc->arpcom.ac_if,
1243                           "flow-through queue init failed\n");
1244                 return(ENXIO);
1245         }
1246
1247         /*
1248          * Summary of rings supported by the controller:
1249          *
1250          * Standard Receive Producer Ring
1251          * - This ring is used to feed receive buffers for "standard"
1252          *   sized frames (typically 1536 bytes) to the controller.
1253          *
1254          * Jumbo Receive Producer Ring
1255          * - This ring is used to feed receive buffers for jumbo sized
1256          *   frames (i.e. anything bigger than the "standard" frames)
1257          *   to the controller.
1258          *
1259          * Mini Receive Producer Ring
1260          * - This ring is used to feed receive buffers for "mini"
1261          *   sized frames to the controller.
1262          * - This feature required external memory for the controller
1263          *   but was never used in a production system.  Should always
1264          *   be disabled.
1265          *
1266          * Receive Return Ring
1267          * - After the controller has placed an incoming frame into a
1268          *   receive buffer that buffer is moved into a receive return
1269          *   ring.  The driver is then responsible to passing the
1270          *   buffer up to the stack.  Many versions of the controller
1271          *   support multiple RR rings.
1272          *
1273          * Send Ring
1274          * - This ring is used for outgoing frames.  Many versions of
1275          *   the controller support multiple send rings.
1276          */
1277
1278         /* Initialize the standard receive producer ring control block. */
1279         rcb = &sc->bnx_ldata.bnx_info.bnx_std_rx_rcb;
1280         rcb->bge_hostaddr.bge_addr_lo =
1281             BGE_ADDR_LO(sc->bnx_ldata.bnx_rx_std_ring_paddr);
1282         rcb->bge_hostaddr.bge_addr_hi =
1283             BGE_ADDR_HI(sc->bnx_ldata.bnx_rx_std_ring_paddr);
1284         if (BNX_IS_57765_PLUS(sc)) {
1285                 /*
1286                  * Bits 31-16: Programmable ring size (2048, 1024, 512, .., 32)
1287                  * Bits 15-2 : Maximum RX frame size
1288                  * Bit 1     : 1 = Ring Disabled, 0 = Ring ENabled
1289                  * Bit 0     : Reserved
1290                  */
1291                 rcb->bge_maxlen_flags =
1292                     BGE_RCB_MAXLEN_FLAGS(512, BNX_MAX_FRAMELEN << 2);
1293         } else {
1294                 /*
1295                  * Bits 31-16: Programmable ring size (512, 256, 128, 64, 32)
1296                  * Bits 15-2 : Reserved (should be 0)
1297                  * Bit 1     : 1 = Ring Disabled, 0 = Ring Enabled
1298                  * Bit 0     : Reserved
1299                  */
1300                 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0);
1301         }
1302         if (sc->bnx_asicrev == BGE_ASICREV_BCM5717 ||
1303             sc->bnx_asicrev == BGE_ASICREV_BCM5719 ||
1304             sc->bnx_asicrev == BGE_ASICREV_BCM5720)
1305                 rcb->bge_nicaddr = BGE_STD_RX_RINGS_5717;
1306         else
1307                 rcb->bge_nicaddr = BGE_STD_RX_RINGS;
1308         /* Write the standard receive producer ring control block. */
1309         CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi);
1310         CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo);
1311         CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1312         CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr);
1313         /* Reset the standard receive producer ring producer index. */
1314         bnx_writembx(sc, BGE_MBX_RX_STD_PROD_LO, 0);
1315
1316         /*
1317          * Initialize the jumbo RX producer ring control
1318          * block.  We set the 'ring disabled' bit in the
1319          * flags field until we're actually ready to start
1320          * using this ring (i.e. once we set the MTU
1321          * high enough to require it).
1322          */
1323         if (BNX_IS_JUMBO_CAPABLE(sc)) {
1324                 rcb = &sc->bnx_ldata.bnx_info.bnx_jumbo_rx_rcb;
1325                 /* Get the jumbo receive producer ring RCB parameters. */
1326                 rcb->bge_hostaddr.bge_addr_lo =
1327                     BGE_ADDR_LO(sc->bnx_ldata.bnx_rx_jumbo_ring_paddr);
1328                 rcb->bge_hostaddr.bge_addr_hi =
1329                     BGE_ADDR_HI(sc->bnx_ldata.bnx_rx_jumbo_ring_paddr);
1330                 rcb->bge_maxlen_flags =
1331                     BGE_RCB_MAXLEN_FLAGS(BNX_MAX_FRAMELEN,
1332                     BGE_RCB_FLAG_RING_DISABLED);
1333                 if (sc->bnx_asicrev == BGE_ASICREV_BCM5717 ||
1334                     sc->bnx_asicrev == BGE_ASICREV_BCM5719 ||
1335                     sc->bnx_asicrev == BGE_ASICREV_BCM5720)
1336                         rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS_5717;
1337                 else
1338                         rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS;
1339                 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI,
1340                     rcb->bge_hostaddr.bge_addr_hi);
1341                 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO,
1342                     rcb->bge_hostaddr.bge_addr_lo);
1343                 /* Program the jumbo receive producer ring RCB parameters. */
1344                 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS,
1345                     rcb->bge_maxlen_flags);
1346                 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr);
1347                 /* Reset the jumbo receive producer ring producer index. */
1348                 bnx_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0);
1349         }
1350
1351         /* Choose de-pipeline mode for BCM5906 A0, A1 and A2. */
1352         if (sc->bnx_asicrev == BGE_ASICREV_BCM5906 &&
1353             (sc->bnx_chipid == BGE_CHIPID_BCM5906_A0 ||
1354              sc->bnx_chipid == BGE_CHIPID_BCM5906_A1 ||
1355              sc->bnx_chipid == BGE_CHIPID_BCM5906_A2)) {
1356                 CSR_WRITE_4(sc, BGE_ISO_PKT_TX,
1357                     (CSR_READ_4(sc, BGE_ISO_PKT_TX) & ~3) | 2);
1358         }
1359
1360         /*
1361          * The BD ring replenish thresholds control how often the
1362          * hardware fetches new BD's from the producer rings in host
1363          * memory.  Setting the value too low on a busy system can
1364          * starve the hardware and recue the throughpout.
1365          *
1366          * Set the BD ring replentish thresholds. The recommended
1367          * values are 1/8th the number of descriptors allocated to
1368          * each ring.
1369          */
1370         val = 8;
1371         CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, val);
1372         if (BNX_IS_JUMBO_CAPABLE(sc)) {
1373                 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH,
1374                     BGE_JUMBO_RX_RING_CNT/8);
1375         }
1376         if (BNX_IS_57765_PLUS(sc)) {
1377                 CSR_WRITE_4(sc, BGE_STD_REPLENISH_LWM, 32);
1378                 CSR_WRITE_4(sc, BGE_JMB_REPLENISH_LWM, 16);
1379         }
1380
1381         /*
1382          * Disable all send rings by setting the 'ring disabled' bit
1383          * in the flags field of all the TX send ring control blocks,
1384          * located in NIC memory.
1385          */
1386         if (BNX_IS_5717_PLUS(sc))
1387                 limit = 4;
1388         else if (BNX_IS_57765_FAMILY(sc))
1389                 limit = 2;
1390         else
1391                 limit = 1;
1392         vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1393         for (i = 0; i < limit; i++) {
1394                 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1395                     BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED));
1396                 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1397                 vrcb += sizeof(struct bge_rcb);
1398         }
1399
1400         /* Configure send ring RCB 0 (we use only the first ring) */
1401         vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1402         BGE_HOSTADDR(taddr, sc->bnx_ldata.bnx_tx_ring_paddr);
1403         RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1404         RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1405         if (sc->bnx_asicrev == BGE_ASICREV_BCM5717 ||
1406             sc->bnx_asicrev == BGE_ASICREV_BCM5719 ||
1407             sc->bnx_asicrev == BGE_ASICREV_BCM5720) {
1408                 RCB_WRITE_4(sc, vrcb, bge_nicaddr, BGE_SEND_RING_5717);
1409         } else {
1410                 RCB_WRITE_4(sc, vrcb, bge_nicaddr,
1411                     BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT));
1412         }
1413         RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1414             BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0));
1415
1416         /*
1417          * Disable all receive return rings by setting the
1418          * 'ring disabled' bit in the flags field of all the receive
1419          * return ring control blocks, located in NIC memory.
1420          */
1421         if (BNX_IS_5717_PLUS(sc)) {
1422                 /* Should be 17, use 16 until we get an SRAM map. */
1423                 limit = 16;
1424         } else if (BNX_IS_57765_FAMILY(sc)) {
1425                 limit = 4;
1426         } else {
1427                 limit = 1;
1428         }
1429         /* Disable all receive return rings. */
1430         vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1431         for (i = 0; i < limit; i++) {
1432                 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0);
1433                 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0);
1434                 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1435                     BGE_RCB_FLAG_RING_DISABLED);
1436                 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1437                 bnx_writembx(sc, BGE_MBX_RX_CONS0_LO +
1438                     (i * (sizeof(uint64_t))), 0);
1439                 vrcb += sizeof(struct bge_rcb);
1440         }
1441
1442         /*
1443          * Set up receive return ring 0.  Note that the NIC address
1444          * for RX return rings is 0x0.  The return rings live entirely
1445          * within the host, so the nicaddr field in the RCB isn't used.
1446          */
1447         vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1448         BGE_HOSTADDR(taddr, sc->bnx_ldata.bnx_rx_return_ring_paddr);
1449         RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1450         RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1451         RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1452         RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1453             BGE_RCB_MAXLEN_FLAGS(sc->bnx_return_ring_cnt, 0));
1454
1455         /* Set random backoff seed for TX */
1456         CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF,
1457             sc->arpcom.ac_enaddr[0] + sc->arpcom.ac_enaddr[1] +
1458             sc->arpcom.ac_enaddr[2] + sc->arpcom.ac_enaddr[3] +
1459             sc->arpcom.ac_enaddr[4] + sc->arpcom.ac_enaddr[5] +
1460             BGE_TX_BACKOFF_SEED_MASK);
1461
1462         /* Set inter-packet gap */
1463         val = 0x2620;
1464         if (sc->bnx_asicrev == BGE_ASICREV_BCM5720) {
1465                 val |= CSR_READ_4(sc, BGE_TX_LENGTHS) &
1466                     (BGE_TXLEN_JMB_FRM_LEN_MSK | BGE_TXLEN_CNT_DN_VAL_MSK);
1467         }
1468         CSR_WRITE_4(sc, BGE_TX_LENGTHS, val);
1469
1470         /*
1471          * Specify which ring to use for packets that don't match
1472          * any RX rules.
1473          */
1474         CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08);
1475
1476         /*
1477          * Configure number of RX lists. One interrupt distribution
1478          * list, sixteen active lists, one bad frames class.
1479          */
1480         CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181);
1481
1482         /* Inialize RX list placement stats mask. */
1483         CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF);
1484         CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1);
1485
1486         /* Disable host coalescing until we get it set up */
1487         CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000);
1488
1489         /* Poll to make sure it's shut down. */
1490         for (i = 0; i < BNX_TIMEOUT; i++) {
1491                 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE))
1492                         break;
1493                 DELAY(10);
1494         }
1495
1496         if (i == BNX_TIMEOUT) {
1497                 if_printf(&sc->arpcom.ac_if,
1498                           "host coalescing engine failed to idle\n");
1499                 return(ENXIO);
1500         }
1501
1502         /* Set up host coalescing defaults */
1503         CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bnx_rx_coal_ticks);
1504         CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bnx_tx_coal_ticks);
1505         CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bnx_rx_coal_bds);
1506         CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bnx_tx_coal_bds);
1507         CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, sc->bnx_rx_coal_bds_int);
1508         CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, sc->bnx_tx_coal_bds_int);
1509
1510         /* Set up address of status block */
1511         bzero(sc->bnx_ldata.bnx_status_block, BGE_STATUS_BLK_SZ);
1512         CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI,
1513             BGE_ADDR_HI(sc->bnx_ldata.bnx_status_block_paddr));
1514         CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO,
1515             BGE_ADDR_LO(sc->bnx_ldata.bnx_status_block_paddr));
1516
1517         /* Set up status block partail update size. */
1518         val = BGE_STATBLKSZ_32BYTE;
1519 #if 0
1520         /*
1521          * Does not seem to have visible effect in both
1522          * bulk data (1472B UDP datagram) and tiny data
1523          * (18B UDP datagram) TX tests.
1524          */
1525         val |= BGE_HCCMODE_CLRTICK_TX;
1526 #endif
1527         /* Turn on host coalescing state machine */
1528         CSR_WRITE_4(sc, BGE_HCC_MODE, val | BGE_HCCMODE_ENABLE);
1529
1530         /* Turn on RX BD completion state machine and enable attentions */
1531         CSR_WRITE_4(sc, BGE_RBDC_MODE,
1532             BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN);
1533
1534         /* Turn on RX list placement state machine */
1535         CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
1536
1537         val = BGE_MACMODE_TXDMA_ENB | BGE_MACMODE_RXDMA_ENB |
1538             BGE_MACMODE_RX_STATS_CLEAR | BGE_MACMODE_TX_STATS_CLEAR |
1539             BGE_MACMODE_RX_STATS_ENB | BGE_MACMODE_TX_STATS_ENB |
1540             BGE_MACMODE_FRMHDR_DMA_ENB;
1541
1542         if (sc->bnx_flags & BNX_FLAG_TBI)
1543                 val |= BGE_PORTMODE_TBI;
1544         else if (sc->bnx_flags & BNX_FLAG_MII_SERDES)
1545                 val |= BGE_PORTMODE_GMII;
1546         else
1547                 val |= BGE_PORTMODE_MII;
1548
1549         /* Turn on DMA, clear stats */
1550         CSR_WRITE_4(sc, BGE_MAC_MODE, val);
1551
1552         /* Set misc. local control, enable interrupts on attentions */
1553         CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN);
1554
1555 #ifdef notdef
1556         /* Assert GPIO pins for PHY reset */
1557         BNX_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0|
1558             BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2);
1559         BNX_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0|
1560             BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2);
1561 #endif
1562
1563         /* Turn on write DMA state machine */
1564         val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS;
1565         /* Enable host coalescing bug fix. */
1566         val |= BGE_WDMAMODE_STATUS_TAG_FIX;
1567         if (sc->bnx_asicrev == BGE_ASICREV_BCM5785) {
1568                 /* Request larger DMA burst size to get better performance. */
1569                 val |= BGE_WDMAMODE_BURST_ALL_DATA;
1570         }
1571         CSR_WRITE_4(sc, BGE_WDMA_MODE, val);
1572         DELAY(40);
1573
1574         if (BNX_IS_57765_PLUS(sc)) {
1575                 uint32_t dmactl;
1576
1577                 dmactl = CSR_READ_4(sc, BGE_RDMA_RSRVCTRL);
1578                 /*
1579                  * Adjust tx margin to prevent TX data corruption and
1580                  * fix internal FIFO overflow.
1581                  */
1582                 if (sc->bnx_asicrev == BGE_ASICREV_BCM5719 ||
1583                     sc->bnx_asicrev == BGE_ASICREV_BCM5720) {
1584                         dmactl &= ~(BGE_RDMA_RSRVCTRL_FIFO_LWM_MASK |
1585                             BGE_RDMA_RSRVCTRL_FIFO_HWM_MASK |
1586                             BGE_RDMA_RSRVCTRL_TXMRGN_MASK);
1587                         dmactl |= BGE_RDMA_RSRVCTRL_FIFO_LWM_1_5K |
1588                             BGE_RDMA_RSRVCTRL_FIFO_HWM_1_5K |
1589                             BGE_RDMA_RSRVCTRL_TXMRGN_320B;
1590                 }
1591                 /*
1592                  * Enable fix for read DMA FIFO overruns.
1593                  * The fix is to limit the number of RX BDs
1594                  * the hardware would fetch at a fime.
1595                  */
1596                 CSR_WRITE_4(sc, BGE_RDMA_RSRVCTRL,
1597                     dmactl | BGE_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
1598         }
1599
1600         if (sc->bnx_asicrev == BGE_ASICREV_BCM5719) {
1601                 CSR_WRITE_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL,
1602                     CSR_READ_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL) |
1603                     BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_BD_4K |
1604                     BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_LSO_4K);
1605         } else if (sc->bnx_asicrev == BGE_ASICREV_BCM5720) {
1606                 /*
1607                  * Allow 4KB burst length reads for non-LSO frames.
1608                  * Enable 512B burst length reads for buffer descriptors.
1609                  */
1610                 CSR_WRITE_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL,
1611                     CSR_READ_4(sc, BGE_RDMA_LSO_CRPTEN_CTRL) |
1612                     BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_BD_512 |
1613                     BGE_RDMA_LSO_CRPTEN_CTRL_BLEN_LSO_4K);
1614         }
1615
1616         /* Turn on read DMA state machine */
1617         val = BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS;
1618         if (sc->bnx_asicrev == BGE_ASICREV_BCM5717)
1619                 val |= BGE_RDMAMODE_MULT_DMA_RD_DIS;
1620         if (sc->bnx_asicrev == BGE_ASICREV_BCM5784 ||
1621             sc->bnx_asicrev == BGE_ASICREV_BCM5785 ||
1622             sc->bnx_asicrev == BGE_ASICREV_BCM57780) {
1623                 val |= BGE_RDMAMODE_BD_SBD_CRPT_ATTN |
1624                     BGE_RDMAMODE_MBUF_RBD_CRPT_ATTN |
1625                     BGE_RDMAMODE_MBUF_SBD_CRPT_ATTN;
1626         }
1627         if (sc->bnx_asicrev == BGE_ASICREV_BCM5720) {
1628                 val |= CSR_READ_4(sc, BGE_RDMA_MODE) &
1629                     BGE_RDMAMODE_H2BNC_VLAN_DET;
1630                 /*
1631                  * Allow multiple outstanding read requests from
1632                  * non-LSO read DMA engine.
1633                  */
1634                 val &= ~BGE_RDMAMODE_MULT_DMA_RD_DIS;
1635         }
1636         val |= BGE_RDMAMODE_FIFO_LONG_BURST;
1637         CSR_WRITE_4(sc, BGE_RDMA_MODE, val);
1638         DELAY(40);
1639
1640         /* Turn on RX data completion state machine */
1641         CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
1642
1643         /* Turn on RX BD initiator state machine */
1644         CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
1645
1646         /* Turn on RX data and RX BD initiator state machine */
1647         CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE);
1648
1649         /* Turn on send BD completion state machine */
1650         CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
1651
1652         /* Turn on send data completion state machine */
1653         val = BGE_SDCMODE_ENABLE;
1654         if (sc->bnx_asicrev == BGE_ASICREV_BCM5761)
1655                 val |= BGE_SDCMODE_CDELAY;
1656         CSR_WRITE_4(sc, BGE_SDC_MODE, val);
1657
1658         /* Turn on send data initiator state machine */
1659         CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
1660
1661         /* Turn on send BD initiator state machine */
1662         CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
1663
1664         /* Turn on send BD selector state machine */
1665         CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
1666
1667         CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF);
1668         CSR_WRITE_4(sc, BGE_SDI_STATS_CTL,
1669             BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER);
1670
1671         /* ack/clear link change events */
1672         CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1673             BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1674             BGE_MACSTAT_LINK_CHANGED);
1675         CSR_WRITE_4(sc, BGE_MI_STS, 0);
1676
1677         /*
1678          * Enable attention when the link has changed state for
1679          * devices that use auto polling.
1680          */
1681         if (sc->bnx_flags & BNX_FLAG_TBI) {
1682                 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK);
1683         } else {
1684                 if (sc->bnx_mi_mode & BGE_MIMODE_AUTOPOLL) {
1685                         CSR_WRITE_4(sc, BGE_MI_MODE, sc->bnx_mi_mode);
1686                         DELAY(80);
1687                 }
1688         }
1689
1690         /*
1691          * Clear any pending link state attention.
1692          * Otherwise some link state change events may be lost until attention
1693          * is cleared by bnx_intr() -> bnx_softc.bnx_link_upd() sequence.
1694          * It's not necessary on newer BCM chips - perhaps enabling link
1695          * state change attentions implies clearing pending attention.
1696          */
1697         CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1698             BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1699             BGE_MACSTAT_LINK_CHANGED);
1700
1701         /* Enable link state change attentions. */
1702         BNX_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED);
1703
1704         return(0);
1705 }
1706
1707 /*
1708  * Probe for a Broadcom chip. Check the PCI vendor and device IDs
1709  * against our list and return its name if we find a match. Note
1710  * that since the Broadcom controller contains VPD support, we
1711  * can get the device name string from the controller itself instead
1712  * of the compiled-in string. This is a little slow, but it guarantees
1713  * we'll always announce the right product name.
1714  */
1715 static int
1716 bnx_probe(device_t dev)
1717 {
1718         const struct bnx_type *t;
1719         uint16_t product, vendor;
1720
1721         if (!pci_is_pcie(dev))
1722                 return ENXIO;
1723
1724         product = pci_get_device(dev);
1725         vendor = pci_get_vendor(dev);
1726
1727         for (t = bnx_devs; t->bnx_name != NULL; t++) {
1728                 if (vendor == t->bnx_vid && product == t->bnx_did)
1729                         break;
1730         }
1731         if (t->bnx_name == NULL)
1732                 return ENXIO;
1733
1734         device_set_desc(dev, t->bnx_name);
1735         return 0;
1736 }
1737
1738 static int
1739 bnx_attach(device_t dev)
1740 {
1741         struct ifnet *ifp;
1742         struct bnx_softc *sc;
1743         uint32_t hwcfg = 0, misccfg;
1744         int error = 0, rid, capmask;
1745         uint8_t ether_addr[ETHER_ADDR_LEN];
1746         uint16_t product, vendor;
1747         driver_intr_t *intr_func;
1748         uintptr_t mii_priv = 0;
1749         u_int intr_flags;
1750
1751         sc = device_get_softc(dev);
1752         sc->bnx_dev = dev;
1753         callout_init_mp(&sc->bnx_stat_timer);
1754         lwkt_serialize_init(&sc->bnx_jslot_serializer);
1755
1756         product = pci_get_device(dev);
1757         vendor = pci_get_vendor(dev);
1758
1759 #ifndef BURN_BRIDGES
1760         if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
1761                 uint32_t irq, mem;
1762
1763                 irq = pci_read_config(dev, PCIR_INTLINE, 4);
1764                 mem = pci_read_config(dev, BGE_PCI_BAR0, 4);
1765
1766                 device_printf(dev, "chip is in D%d power mode "
1767                     "-- setting to D0\n", pci_get_powerstate(dev));
1768
1769                 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
1770
1771                 pci_write_config(dev, PCIR_INTLINE, irq, 4);
1772                 pci_write_config(dev, BGE_PCI_BAR0, mem, 4);
1773         }
1774 #endif  /* !BURN_BRIDGE */
1775
1776         /*
1777          * Map control/status registers.
1778          */
1779         pci_enable_busmaster(dev);
1780
1781         rid = BGE_PCI_BAR0;
1782         sc->bnx_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1783             RF_ACTIVE);
1784
1785         if (sc->bnx_res == NULL) {
1786                 device_printf(dev, "couldn't map memory\n");
1787                 return ENXIO;
1788         }
1789
1790         sc->bnx_btag = rman_get_bustag(sc->bnx_res);
1791         sc->bnx_bhandle = rman_get_bushandle(sc->bnx_res);
1792
1793         /* Save various chip information */
1794         sc->bnx_chipid =
1795             pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >>
1796             BGE_PCIMISCCTL_ASICREV_SHIFT;
1797         if (BGE_ASICREV(sc->bnx_chipid) == BGE_ASICREV_USE_PRODID_REG) {
1798                 /* All chips having dedicated ASICREV register have CPMU */
1799                 sc->bnx_flags |= BNX_FLAG_CPMU;
1800
1801                 switch (product) {
1802                 case PCI_PRODUCT_BROADCOM_BCM5717:
1803                 case PCI_PRODUCT_BROADCOM_BCM5718:
1804                 case PCI_PRODUCT_BROADCOM_BCM5719:
1805                 case PCI_PRODUCT_BROADCOM_BCM5720_ALT:
1806                         sc->bnx_chipid = pci_read_config(dev,
1807                             BGE_PCI_GEN2_PRODID_ASICREV, 4);
1808                         break;
1809
1810                 case PCI_PRODUCT_BROADCOM_BCM57761:
1811                 case PCI_PRODUCT_BROADCOM_BCM57762:
1812                 case PCI_PRODUCT_BROADCOM_BCM57765:
1813                 case PCI_PRODUCT_BROADCOM_BCM57766:
1814                 case PCI_PRODUCT_BROADCOM_BCM57781:
1815                 case PCI_PRODUCT_BROADCOM_BCM57782:
1816                 case PCI_PRODUCT_BROADCOM_BCM57785:
1817                 case PCI_PRODUCT_BROADCOM_BCM57786:
1818                 case PCI_PRODUCT_BROADCOM_BCM57791:
1819                 case PCI_PRODUCT_BROADCOM_BCM57795:
1820                         sc->bnx_chipid = pci_read_config(dev,
1821                             BGE_PCI_GEN15_PRODID_ASICREV, 4);
1822                         break;
1823
1824                 default:
1825                         sc->bnx_chipid = pci_read_config(dev,
1826                             BGE_PCI_PRODID_ASICREV, 4);
1827                         break;
1828                 }
1829         }
1830         sc->bnx_asicrev = BGE_ASICREV(sc->bnx_chipid);
1831         sc->bnx_chiprev = BGE_CHIPREV(sc->bnx_chipid);
1832
1833         switch (sc->bnx_asicrev) {
1834         case BGE_ASICREV_BCM5717:
1835         case BGE_ASICREV_BCM5719:
1836         case BGE_ASICREV_BCM5720:
1837                 sc->bnx_flags |= BNX_FLAG_5717_PLUS | BNX_FLAG_57765_PLUS;
1838                 break;
1839
1840         case BGE_ASICREV_BCM57765:
1841         case BGE_ASICREV_BCM57766:
1842                 sc->bnx_flags |= BNX_FLAG_57765_FAMILY | BNX_FLAG_57765_PLUS;
1843                 break;
1844         }
1845         sc->bnx_flags |= BNX_FLAG_SHORTDMA;
1846
1847         misccfg = CSR_READ_4(sc, BGE_MISC_CFG) & BGE_MISCCFG_BOARD_ID_MASK;
1848
1849         sc->bnx_pciecap = pci_get_pciecap_ptr(sc->bnx_dev);
1850         if (sc->bnx_asicrev == BGE_ASICREV_BCM5719 ||
1851             sc->bnx_asicrev == BGE_ASICREV_BCM5720)
1852                 pcie_set_max_readrq(dev, PCIEM_DEVCTL_MAX_READRQ_2048);
1853         else
1854                 pcie_set_max_readrq(dev, PCIEM_DEVCTL_MAX_READRQ_4096);
1855         device_printf(dev, "CHIP ID 0x%08x; "
1856                       "ASIC REV 0x%02x; CHIP REV 0x%02x\n",
1857                       sc->bnx_chipid, sc->bnx_asicrev, sc->bnx_chiprev);
1858
1859         /*
1860          * Set various PHY quirk flags.
1861          */
1862
1863         capmask = MII_CAPMASK_DEFAULT;
1864         if (product == PCI_PRODUCT_BROADCOM_BCM57791 ||
1865             product == PCI_PRODUCT_BROADCOM_BCM57795) {
1866                 /* 10/100 only */
1867                 capmask &= ~BMSR_EXTSTAT;
1868         }
1869
1870         mii_priv |= BRGPHY_FLAG_WIRESPEED;
1871
1872         /*
1873          * Allocate interrupt
1874          */
1875         sc->bnx_irq_type = pci_alloc_1intr(dev, bnx_msi_enable, &sc->bnx_irq_rid,
1876             &intr_flags);
1877
1878         sc->bnx_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->bnx_irq_rid,
1879             intr_flags);
1880         if (sc->bnx_irq == NULL) {
1881                 device_printf(dev, "couldn't map interrupt\n");
1882                 error = ENXIO;
1883                 goto fail;
1884         }
1885
1886         if (sc->bnx_irq_type == PCI_INTR_TYPE_MSI) {
1887                 sc->bnx_flags |= BNX_FLAG_ONESHOT_MSI;
1888                 bnx_enable_msi(sc);
1889         }
1890
1891         /* Initialize if_name earlier, so if_printf could be used */
1892         ifp = &sc->arpcom.ac_if;
1893         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
1894
1895         /* Try to reset the chip. */
1896         bnx_reset(sc);
1897
1898         if (bnx_chipinit(sc)) {
1899                 device_printf(dev, "chip initialization failed\n");
1900                 error = ENXIO;
1901                 goto fail;
1902         }
1903
1904         /*
1905          * Get station address
1906          */
1907         error = bnx_get_eaddr(sc, ether_addr);
1908         if (error) {
1909                 device_printf(dev, "failed to read station address\n");
1910                 goto fail;
1911         }
1912
1913         if (BNX_IS_57765_PLUS(sc)) {
1914                 sc->bnx_return_ring_cnt = BGE_RETURN_RING_CNT;
1915         } else {
1916                 /* 5705/5750 limits RX return ring to 512 entries. */
1917                 sc->bnx_return_ring_cnt = BGE_RETURN_RING_CNT_5705;
1918         }
1919
1920         error = bnx_dma_alloc(sc);
1921         if (error)
1922                 goto fail;
1923
1924         /* Set default tuneable values. */
1925         sc->bnx_rx_coal_ticks = BNX_RX_COAL_TICKS_DEF;
1926         sc->bnx_tx_coal_ticks = BNX_TX_COAL_TICKS_DEF;
1927         sc->bnx_rx_coal_bds = BNX_RX_COAL_BDS_DEF;
1928         sc->bnx_tx_coal_bds = BNX_TX_COAL_BDS_DEF;
1929         sc->bnx_rx_coal_bds_int = BNX_RX_COAL_BDS_DEF;
1930         sc->bnx_tx_coal_bds_int = BNX_TX_COAL_BDS_DEF;
1931
1932         /* Set up ifnet structure */
1933         ifp->if_softc = sc;
1934         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
1935         ifp->if_ioctl = bnx_ioctl;
1936         ifp->if_start = bnx_start;
1937 #ifdef DEVICE_POLLING
1938         ifp->if_poll = bnx_poll;
1939 #endif
1940         ifp->if_watchdog = bnx_watchdog;
1941         ifp->if_init = bnx_init;
1942         ifp->if_mtu = ETHERMTU;
1943         ifp->if_capabilities = IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
1944         ifq_set_maxlen(&ifp->if_snd, BGE_TX_RING_CNT - 1);
1945         ifq_set_ready(&ifp->if_snd);
1946
1947         ifp->if_capabilities |= IFCAP_HWCSUM;
1948         ifp->if_hwassist = BNX_CSUM_FEATURES;
1949         ifp->if_capenable = ifp->if_capabilities;
1950
1951         /*
1952          * Figure out what sort of media we have by checking the
1953          * hardware config word in the first 32k of NIC internal memory,
1954          * or fall back to examining the EEPROM if necessary.
1955          * Note: on some BCM5700 cards, this value appears to be unset.
1956          * If that's the case, we have to rely on identifying the NIC
1957          * by its PCI subsystem ID, as we do below for the SysKonnect
1958          * SK-9D41.
1959          */
1960         if (bnx_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER) {
1961                 hwcfg = bnx_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG);
1962         } else {
1963                 if (bnx_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET,
1964                                     sizeof(hwcfg))) {
1965                         device_printf(dev, "failed to read EEPROM\n");
1966                         error = ENXIO;
1967                         goto fail;
1968                 }
1969                 hwcfg = ntohl(hwcfg);
1970         }
1971
1972         /* The SysKonnect SK-9D41 is a 1000baseSX card. */
1973         if (pci_get_subvendor(dev) == PCI_PRODUCT_SCHNEIDERKOCH_SK_9D41 ||
1974             (hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER)
1975                 sc->bnx_flags |= BNX_FLAG_TBI;
1976
1977         /* Setup MI MODE */
1978         if (sc->bnx_flags & BNX_FLAG_CPMU)
1979                 sc->bnx_mi_mode = BGE_MIMODE_500KHZ_CONST;
1980         else
1981                 sc->bnx_mi_mode = BGE_MIMODE_BASE;
1982
1983         /* Setup link status update stuffs */
1984         if (sc->bnx_flags & BNX_FLAG_TBI) {
1985                 sc->bnx_link_upd = bnx_tbi_link_upd;
1986                 sc->bnx_link_chg = BGE_MACSTAT_LINK_CHANGED;
1987         } else if (sc->bnx_mi_mode & BGE_MIMODE_AUTOPOLL) {
1988                 sc->bnx_link_upd = bnx_autopoll_link_upd;
1989                 sc->bnx_link_chg = BGE_MACSTAT_LINK_CHANGED;
1990         } else {
1991                 sc->bnx_link_upd = bnx_copper_link_upd;
1992                 sc->bnx_link_chg = BGE_MACSTAT_LINK_CHANGED;
1993         }
1994
1995         /* Set default PHY address */
1996         sc->bnx_phyno = 1;
1997
1998         /*
1999          * PHY address mapping for various devices.
2000          *
2001          *          | F0 Cu | F0 Sr | F1 Cu | F1 Sr |
2002          * ---------+-------+-------+-------+-------+
2003          * BCM57XX  |   1   |   X   |   X   |   X   |
2004          * BCM5704  |   1   |   X   |   1   |   X   |
2005          * BCM5717  |   1   |   8   |   2   |   9   |
2006          * BCM5719  |   1   |   8   |   2   |   9   |
2007          * BCM5720  |   1   |   8   |   2   |   9   |
2008          *
2009          * Other addresses may respond but they are not
2010          * IEEE compliant PHYs and should be ignored.
2011          */
2012         if (BNX_IS_5717_PLUS(sc)) {
2013                 int f;
2014
2015                 f = pci_get_function(dev);
2016                 if (sc->bnx_chipid == BGE_CHIPID_BCM5717_A0) {
2017                         if (CSR_READ_4(sc, BGE_SGDIG_STS) &
2018                             BGE_SGDIGSTS_IS_SERDES)
2019                                 sc->bnx_phyno = f + 8;
2020                         else
2021                                 sc->bnx_phyno = f + 1;
2022                 } else {
2023                         if (CSR_READ_4(sc, BGE_CPMU_PHY_STRAP) &
2024                             BGE_CPMU_PHY_STRAP_IS_SERDES)
2025                                 sc->bnx_phyno = f + 8;
2026                         else
2027                                 sc->bnx_phyno = f + 1;
2028                 }
2029         }
2030
2031         if (sc->bnx_flags & BNX_FLAG_TBI) {
2032                 ifmedia_init(&sc->bnx_ifmedia, IFM_IMASK,
2033                     bnx_ifmedia_upd, bnx_ifmedia_sts);
2034                 ifmedia_add(&sc->bnx_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
2035                 ifmedia_add(&sc->bnx_ifmedia,
2036                     IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
2037                 ifmedia_add(&sc->bnx_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
2038                 ifmedia_set(&sc->bnx_ifmedia, IFM_ETHER|IFM_AUTO);
2039                 sc->bnx_ifmedia.ifm_media = sc->bnx_ifmedia.ifm_cur->ifm_media;
2040         } else {
2041                 struct mii_probe_args mii_args;
2042
2043                 mii_probe_args_init(&mii_args, bnx_ifmedia_upd, bnx_ifmedia_sts);
2044                 mii_args.mii_probemask = 1 << sc->bnx_phyno;
2045                 mii_args.mii_capmask = capmask;
2046                 mii_args.mii_privtag = MII_PRIVTAG_BRGPHY;
2047                 mii_args.mii_priv = mii_priv;
2048
2049                 error = mii_probe(dev, &sc->bnx_miibus, &mii_args);
2050                 if (error) {
2051                         device_printf(dev, "MII without any PHY!\n");
2052                         goto fail;
2053                 }
2054         }
2055
2056         /*
2057          * Create sysctl nodes.
2058          */
2059         sysctl_ctx_init(&sc->bnx_sysctl_ctx);
2060         sc->bnx_sysctl_tree = SYSCTL_ADD_NODE(&sc->bnx_sysctl_ctx,
2061                                               SYSCTL_STATIC_CHILDREN(_hw),
2062                                               OID_AUTO,
2063                                               device_get_nameunit(dev),
2064                                               CTLFLAG_RD, 0, "");
2065         if (sc->bnx_sysctl_tree == NULL) {
2066                 device_printf(dev, "can't add sysctl node\n");
2067                 error = ENXIO;
2068                 goto fail;
2069         }
2070
2071         SYSCTL_ADD_PROC(&sc->bnx_sysctl_ctx,
2072                         SYSCTL_CHILDREN(sc->bnx_sysctl_tree),
2073                         OID_AUTO, "rx_coal_ticks",
2074                         CTLTYPE_INT | CTLFLAG_RW,
2075                         sc, 0, bnx_sysctl_rx_coal_ticks, "I",
2076                         "Receive coalescing ticks (usec).");
2077         SYSCTL_ADD_PROC(&sc->bnx_sysctl_ctx,
2078                         SYSCTL_CHILDREN(sc->bnx_sysctl_tree),
2079                         OID_AUTO, "tx_coal_ticks",
2080                         CTLTYPE_INT | CTLFLAG_RW,
2081                         sc, 0, bnx_sysctl_tx_coal_ticks, "I",
2082                         "Transmit coalescing ticks (usec).");
2083         SYSCTL_ADD_PROC(&sc->bnx_sysctl_ctx,
2084                         SYSCTL_CHILDREN(sc->bnx_sysctl_tree),
2085                         OID_AUTO, "rx_coal_bds",
2086                         CTLTYPE_INT | CTLFLAG_RW,
2087                         sc, 0, bnx_sysctl_rx_coal_bds, "I",
2088                         "Receive max coalesced BD count.");
2089         SYSCTL_ADD_PROC(&sc->bnx_sysctl_ctx,
2090                         SYSCTL_CHILDREN(sc->bnx_sysctl_tree),
2091                         OID_AUTO, "tx_coal_bds",
2092                         CTLTYPE_INT | CTLFLAG_RW,
2093                         sc, 0, bnx_sysctl_tx_coal_bds, "I",
2094                         "Transmit max coalesced BD count.");
2095         /*
2096          * A common design characteristic for many Broadcom
2097          * client controllers is that they only support a
2098          * single outstanding DMA read operation on the PCIe
2099          * bus. This means that it will take twice as long to
2100          * fetch a TX frame that is split into header and
2101          * payload buffers as it does to fetch a single,
2102          * contiguous TX frame (2 reads vs. 1 read). For these
2103          * controllers, coalescing buffers to reduce the number
2104          * of memory reads is effective way to get maximum
2105          * performance(about 940Mbps).  Without collapsing TX
2106          * buffers the maximum TCP bulk transfer performance
2107          * is about 850Mbps. However forcing coalescing mbufs
2108          * consumes a lot of CPU cycles, so leave it off by
2109          * default.
2110          */
2111         SYSCTL_ADD_INT(&sc->bnx_sysctl_ctx,
2112             SYSCTL_CHILDREN(sc->bnx_sysctl_tree), OID_AUTO,
2113             "force_defrag", CTLFLAG_RW, &sc->bnx_force_defrag, 0,
2114             "Force defragment on TX path");
2115
2116         SYSCTL_ADD_PROC(&sc->bnx_sysctl_ctx,
2117             SYSCTL_CHILDREN(sc->bnx_sysctl_tree), OID_AUTO,
2118             "rx_coal_bds_int", CTLTYPE_INT | CTLFLAG_RW,
2119             sc, 0, bnx_sysctl_rx_coal_bds_int, "I",
2120             "Receive max coalesced BD count during interrupt.");
2121         SYSCTL_ADD_PROC(&sc->bnx_sysctl_ctx,
2122             SYSCTL_CHILDREN(sc->bnx_sysctl_tree), OID_AUTO,
2123             "tx_coal_bds_int", CTLTYPE_INT | CTLFLAG_RW,
2124             sc, 0, bnx_sysctl_tx_coal_bds_int, "I",
2125             "Transmit max coalesced BD count during interrupt.");
2126
2127         /*
2128          * Call MI attach routine.
2129          */
2130         ether_ifattach(ifp, ether_addr, NULL);
2131
2132         if (sc->bnx_irq_type == PCI_INTR_TYPE_MSI) {
2133                 if (sc->bnx_flags & BNX_FLAG_ONESHOT_MSI) {
2134                         intr_func = bnx_msi_oneshot;
2135                         if (bootverbose)
2136                                 device_printf(dev, "oneshot MSI\n");
2137                 } else {
2138                         intr_func = bnx_msi;
2139                 }
2140         } else {
2141                 intr_func = bnx_intr_legacy;
2142         }
2143         error = bus_setup_intr(dev, sc->bnx_irq, INTR_MPSAFE, intr_func, sc,
2144             &sc->bnx_intrhand, ifp->if_serializer);
2145         if (error) {
2146                 ether_ifdetach(ifp);
2147                 device_printf(dev, "couldn't set up irq\n");
2148                 goto fail;
2149         }
2150
2151         ifp->if_cpuid = rman_get_cpuid(sc->bnx_irq);
2152         KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
2153
2154         sc->bnx_stat_cpuid = ifp->if_cpuid;
2155
2156         return(0);
2157 fail:
2158         bnx_detach(dev);
2159         return(error);
2160 }
2161
2162 static int
2163 bnx_detach(device_t dev)
2164 {
2165         struct bnx_softc *sc = device_get_softc(dev);
2166
2167         if (device_is_attached(dev)) {
2168                 struct ifnet *ifp = &sc->arpcom.ac_if;
2169
2170                 lwkt_serialize_enter(ifp->if_serializer);
2171                 bnx_stop(sc);
2172                 bnx_reset(sc);
2173                 bus_teardown_intr(dev, sc->bnx_irq, sc->bnx_intrhand);
2174                 lwkt_serialize_exit(ifp->if_serializer);
2175
2176                 ether_ifdetach(ifp);
2177         }
2178
2179         if (sc->bnx_flags & BNX_FLAG_TBI)
2180                 ifmedia_removeall(&sc->bnx_ifmedia);
2181         if (sc->bnx_miibus)
2182                 device_delete_child(dev, sc->bnx_miibus);
2183         bus_generic_detach(dev);
2184
2185         if (sc->bnx_irq != NULL) {
2186                 bus_release_resource(dev, SYS_RES_IRQ, sc->bnx_irq_rid,
2187                     sc->bnx_irq);
2188         }
2189         if (sc->bnx_irq_type == PCI_INTR_TYPE_MSI)
2190                 pci_release_msi(dev);
2191
2192         if (sc->bnx_res != NULL) {
2193                 bus_release_resource(dev, SYS_RES_MEMORY,
2194                     BGE_PCI_BAR0, sc->bnx_res);
2195         }
2196
2197         if (sc->bnx_sysctl_tree != NULL)
2198                 sysctl_ctx_free(&sc->bnx_sysctl_ctx);
2199
2200         bnx_dma_free(sc);
2201
2202         return 0;
2203 }
2204
2205 static void
2206 bnx_reset(struct bnx_softc *sc)
2207 {
2208         device_t dev;
2209         uint32_t cachesize, command, pcistate, reset;
2210         void (*write_op)(struct bnx_softc *, uint32_t, uint32_t);
2211         int i, val = 0;
2212         uint16_t devctl;
2213
2214         dev = sc->bnx_dev;
2215
2216         if (sc->bnx_asicrev != BGE_ASICREV_BCM5906)
2217                 write_op = bnx_writemem_direct;
2218         else
2219                 write_op = bnx_writereg_ind;
2220
2221         /* Save some important PCI state. */
2222         cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4);
2223         command = pci_read_config(dev, BGE_PCI_CMD, 4);
2224         pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4);
2225
2226         pci_write_config(dev, BGE_PCI_MISC_CTL,
2227             BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2228             BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW|
2229             BGE_PCIMISCCTL_TAGGED_STATUS, 4);
2230
2231         /* Disable fastboot on controllers that support it. */
2232         if (bootverbose)
2233                 if_printf(&sc->arpcom.ac_if, "Disabling fastboot\n");
2234         CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0);
2235
2236         /*
2237          * Write the magic number to SRAM at offset 0xB50.
2238          * When firmware finishes its initialization it will
2239          * write ~BGE_MAGIC_NUMBER to the same location.
2240          */
2241         bnx_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER);
2242
2243         reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1);
2244
2245         /* XXX: Broadcom Linux driver. */
2246         /* Force PCI-E 1.0a mode */
2247         if (!BNX_IS_57765_PLUS(sc) &&
2248             CSR_READ_4(sc, BGE_PCIE_PHY_TSTCTL) ==
2249             (BGE_PCIE_PHY_TSTCTL_PSCRAM |
2250              BGE_PCIE_PHY_TSTCTL_PCIE10)) {
2251                 CSR_WRITE_4(sc, BGE_PCIE_PHY_TSTCTL,
2252                     BGE_PCIE_PHY_TSTCTL_PSCRAM);
2253         }
2254         if (sc->bnx_chipid != BGE_CHIPID_BCM5750_A0) {
2255                 /* Prevent PCIE link training during global reset */
2256                 CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29));
2257                 reset |= (1<<29);
2258         }
2259
2260         /*
2261          * Set GPHY Power Down Override to leave GPHY
2262          * powered up in D0 uninitialized.
2263          */
2264         if ((sc->bnx_flags & BNX_FLAG_CPMU) == 0)
2265                 reset |= BGE_MISCCFG_GPHY_PD_OVERRIDE;
2266
2267         /* Issue global reset */
2268         write_op(sc, BGE_MISC_CFG, reset);
2269
2270         if (sc->bnx_asicrev == BGE_ASICREV_BCM5906) {
2271                 uint32_t status, ctrl;
2272
2273                 status = CSR_READ_4(sc, BGE_VCPU_STATUS);
2274                 CSR_WRITE_4(sc, BGE_VCPU_STATUS,
2275                     status | BGE_VCPU_STATUS_DRV_RESET);
2276                 ctrl = CSR_READ_4(sc, BGE_VCPU_EXT_CTRL);
2277                 CSR_WRITE_4(sc, BGE_VCPU_EXT_CTRL,
2278                     ctrl & ~BGE_VCPU_EXT_CTRL_HALT_CPU);
2279         }
2280
2281         DELAY(1000);
2282
2283         /* XXX: Broadcom Linux driver. */
2284         if (sc->bnx_chipid == BGE_CHIPID_BCM5750_A0) {
2285                 uint32_t v;
2286
2287                 DELAY(500000); /* wait for link training to complete */
2288                 v = pci_read_config(dev, 0xc4, 4);
2289                 pci_write_config(dev, 0xc4, v | (1<<15), 4);
2290         }
2291
2292         devctl = pci_read_config(dev, sc->bnx_pciecap + PCIER_DEVCTRL, 2);
2293
2294         /* Disable no snoop and disable relaxed ordering. */
2295         devctl &= ~(PCIEM_DEVCTL_RELAX_ORDER | PCIEM_DEVCTL_NOSNOOP);
2296
2297         /* Old PCI-E chips only support 128 bytes Max PayLoad Size. */
2298         if ((sc->bnx_flags & BNX_FLAG_CPMU) == 0) {
2299                 devctl &= ~PCIEM_DEVCTL_MAX_PAYLOAD_MASK;
2300                 devctl |= PCIEM_DEVCTL_MAX_PAYLOAD_128;
2301         }
2302
2303         pci_write_config(dev, sc->bnx_pciecap + PCIER_DEVCTRL,
2304             devctl, 2);
2305
2306         /* Clear error status. */
2307         pci_write_config(dev, sc->bnx_pciecap + PCIER_DEVSTS,
2308             PCIEM_DEVSTS_CORR_ERR |
2309             PCIEM_DEVSTS_NFATAL_ERR |
2310             PCIEM_DEVSTS_FATAL_ERR |
2311             PCIEM_DEVSTS_UNSUPP_REQ, 2);
2312
2313         /* Reset some of the PCI state that got zapped by reset */
2314         pci_write_config(dev, BGE_PCI_MISC_CTL,
2315             BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2316             BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW|
2317             BGE_PCIMISCCTL_TAGGED_STATUS, 4);
2318         pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4);
2319         pci_write_config(dev, BGE_PCI_CMD, command, 4);
2320         write_op(sc, BGE_MISC_CFG, (65 << 1));
2321
2322         /* Enable memory arbiter */
2323         CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
2324
2325         if (sc->bnx_asicrev == BGE_ASICREV_BCM5906) {
2326                 for (i = 0; i < BNX_TIMEOUT; i++) {
2327                         val = CSR_READ_4(sc, BGE_VCPU_STATUS);
2328                         if (val & BGE_VCPU_STATUS_INIT_DONE)
2329                                 break;
2330                         DELAY(100);
2331                 }
2332                 if (i == BNX_TIMEOUT) {
2333                         if_printf(&sc->arpcom.ac_if, "reset timed out\n");
2334                         return;
2335                 }
2336         } else {
2337                 /*
2338                  * Poll until we see the 1's complement of the magic number.
2339                  * This indicates that the firmware initialization
2340                  * is complete.
2341                  */
2342                 for (i = 0; i < BNX_FIRMWARE_TIMEOUT; i++) {
2343                         val = bnx_readmem_ind(sc, BGE_SOFTWARE_GENCOMM);
2344                         if (val == ~BGE_MAGIC_NUMBER)
2345                                 break;
2346                         DELAY(10);
2347                 }
2348                 if (i == BNX_FIRMWARE_TIMEOUT) {
2349                         if_printf(&sc->arpcom.ac_if, "firmware handshake "
2350                                   "timed out, found 0x%08x\n", val);
2351                 }
2352
2353                 /* BCM57765 A0 needs additional time before accessing. */
2354                 if (sc->bnx_chipid == BGE_CHIPID_BCM57765_A0)
2355                         DELAY(10 * 1000);
2356         }
2357
2358         /*
2359          * XXX Wait for the value of the PCISTATE register to
2360          * return to its original pre-reset state. This is a
2361          * fairly good indicator of reset completion. If we don't
2362          * wait for the reset to fully complete, trying to read
2363          * from the device's non-PCI registers may yield garbage
2364          * results.
2365          */
2366         for (i = 0; i < BNX_TIMEOUT; i++) {
2367                 if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate)
2368                         break;
2369                 DELAY(10);
2370         }
2371
2372         /* Fix up byte swapping */
2373         CSR_WRITE_4(sc, BGE_MODE_CTL, bnx_dma_swap_options(sc));
2374
2375         CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
2376
2377         /*
2378          * The 5704 in TBI mode apparently needs some special
2379          * adjustment to insure the SERDES drive level is set
2380          * to 1.2V.
2381          */
2382         if (sc->bnx_asicrev == BGE_ASICREV_BCM5704 &&
2383             (sc->bnx_flags & BNX_FLAG_TBI)) {
2384                 uint32_t serdescfg;
2385
2386                 serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG);
2387                 serdescfg = (serdescfg & ~0xFFF) | 0x880;
2388                 CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg);
2389         }
2390
2391         /* XXX: Broadcom Linux driver. */
2392         if (!BNX_IS_57765_PLUS(sc)) {
2393                 uint32_t v;
2394
2395                 /* Enable Data FIFO protection. */
2396                 v = CSR_READ_4(sc, BGE_PCIE_TLDLPL_PORT);
2397                 CSR_WRITE_4(sc, BGE_PCIE_TLDLPL_PORT, v | (1 << 25));
2398         }
2399
2400         DELAY(10000);
2401
2402         if (sc->bnx_asicrev == BGE_ASICREV_BCM5720) {
2403                 BNX_CLRBIT(sc, BGE_CPMU_CLCK_ORIDE,
2404                     CPMU_CLCK_ORIDE_MAC_ORIDE_EN);
2405         }
2406 }
2407
2408 /*
2409  * Frame reception handling. This is called if there's a frame
2410  * on the receive return list.
2411  *
2412  * Note: we have to be able to handle two possibilities here:
2413  * 1) the frame is from the jumbo recieve ring
2414  * 2) the frame is from the standard receive ring
2415  */
2416
2417 static void
2418 bnx_rxeof(struct bnx_softc *sc, uint16_t rx_prod)
2419 {
2420         struct ifnet *ifp;
2421         int stdcnt = 0, jumbocnt = 0;
2422
2423         ifp = &sc->arpcom.ac_if;
2424
2425         while (sc->bnx_rx_saved_considx != rx_prod) {
2426                 struct bge_rx_bd        *cur_rx;
2427                 uint32_t                rxidx;
2428                 struct mbuf             *m = NULL;
2429                 uint16_t                vlan_tag = 0;
2430                 int                     have_tag = 0;
2431
2432                 cur_rx =
2433             &sc->bnx_ldata.bnx_rx_return_ring[sc->bnx_rx_saved_considx];
2434
2435                 rxidx = cur_rx->bge_idx;
2436                 BNX_INC(sc->bnx_rx_saved_considx, sc->bnx_return_ring_cnt);
2437
2438                 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) {
2439                         have_tag = 1;
2440                         vlan_tag = cur_rx->bge_vlan_tag;
2441                 }
2442
2443                 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) {
2444                         BNX_INC(sc->bnx_jumbo, BGE_JUMBO_RX_RING_CNT);
2445                         jumbocnt++;
2446
2447                         if (rxidx != sc->bnx_jumbo) {
2448                                 ifp->if_ierrors++;
2449                                 if_printf(ifp, "sw jumbo index(%d) "
2450                                     "and hw jumbo index(%d) mismatch, drop!\n",
2451                                     sc->bnx_jumbo, rxidx);
2452                                 bnx_setup_rxdesc_jumbo(sc, rxidx);
2453                                 continue;
2454                         }
2455
2456                         m = sc->bnx_cdata.bnx_rx_jumbo_chain[rxidx].bnx_mbuf;
2457                         if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2458                                 ifp->if_ierrors++;
2459                                 bnx_setup_rxdesc_jumbo(sc, sc->bnx_jumbo);
2460                                 continue;
2461                         }
2462                         if (bnx_newbuf_jumbo(sc, sc->bnx_jumbo, 0)) {
2463                                 ifp->if_ierrors++;
2464                                 bnx_setup_rxdesc_jumbo(sc, sc->bnx_jumbo);
2465                                 continue;
2466                         }
2467                 } else {
2468                         BNX_INC(sc->bnx_std, BGE_STD_RX_RING_CNT);
2469                         stdcnt++;
2470
2471                         if (rxidx != sc->bnx_std) {
2472                                 ifp->if_ierrors++;
2473                                 if_printf(ifp, "sw std index(%d) "
2474                                     "and hw std index(%d) mismatch, drop!\n",
2475                                     sc->bnx_std, rxidx);
2476                                 bnx_setup_rxdesc_std(sc, rxidx);
2477                                 continue;
2478                         }
2479
2480                         m = sc->bnx_cdata.bnx_rx_std_chain[rxidx].bnx_mbuf;
2481                         if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2482                                 ifp->if_ierrors++;
2483                                 bnx_setup_rxdesc_std(sc, sc->bnx_std);
2484                                 continue;
2485                         }
2486                         if (bnx_newbuf_std(sc, sc->bnx_std, 0)) {
2487                                 ifp->if_ierrors++;
2488                                 bnx_setup_rxdesc_std(sc, sc->bnx_std);
2489                                 continue;
2490                         }
2491                 }
2492
2493                 ifp->if_ipackets++;
2494                 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN;
2495                 m->m_pkthdr.rcvif = ifp;
2496
2497                 if ((ifp->if_capenable & IFCAP_RXCSUM) &&
2498                     (cur_rx->bge_flags & BGE_RXBDFLAG_IPV6) == 0) {
2499                         if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) {
2500                                 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2501                                 if ((cur_rx->bge_error_flag &
2502                                     BGE_RXERRFLAG_IP_CSUM_NOK) == 0)
2503                                         m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2504                         }
2505                         if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) {
2506                                 m->m_pkthdr.csum_data =
2507                                     cur_rx->bge_tcp_udp_csum;
2508                                 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID |
2509                                     CSUM_PSEUDO_HDR;
2510                         }
2511                 }
2512
2513                 /*
2514                  * If we received a packet with a vlan tag, pass it
2515                  * to vlan_input() instead of ether_input().
2516                  */
2517                 if (have_tag) {
2518                         m->m_flags |= M_VLANTAG;
2519                         m->m_pkthdr.ether_vlantag = vlan_tag;
2520                         have_tag = vlan_tag = 0;
2521                 }
2522                 ifp->if_input(ifp, m);
2523         }
2524
2525         bnx_writembx(sc, BGE_MBX_RX_CONS0_LO, sc->bnx_rx_saved_considx);
2526         if (stdcnt)
2527                 bnx_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bnx_std);
2528         if (jumbocnt)
2529                 bnx_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bnx_jumbo);
2530 }
2531
2532 static void
2533 bnx_txeof(struct bnx_softc *sc, uint16_t tx_cons)
2534 {
2535         struct bge_tx_bd *cur_tx = NULL;
2536         struct ifnet *ifp;
2537
2538         ifp = &sc->arpcom.ac_if;
2539
2540         /*
2541          * Go through our tx ring and free mbufs for those
2542          * frames that have been sent.
2543          */
2544         while (sc->bnx_tx_saved_considx != tx_cons) {
2545                 uint32_t idx = 0;
2546
2547                 idx = sc->bnx_tx_saved_considx;
2548                 cur_tx = &sc->bnx_ldata.bnx_tx_ring[idx];
2549                 if (cur_tx->bge_flags & BGE_TXBDFLAG_END)
2550                         ifp->if_opackets++;
2551                 if (sc->bnx_cdata.bnx_tx_chain[idx] != NULL) {
2552                         bus_dmamap_unload(sc->bnx_cdata.bnx_tx_mtag,
2553                             sc->bnx_cdata.bnx_tx_dmamap[idx]);
2554                         m_freem(sc->bnx_cdata.bnx_tx_chain[idx]);
2555                         sc->bnx_cdata.bnx_tx_chain[idx] = NULL;
2556                 }
2557                 sc->bnx_txcnt--;
2558                 BNX_INC(sc->bnx_tx_saved_considx, BGE_TX_RING_CNT);
2559         }
2560
2561         if (cur_tx != NULL &&
2562             (BGE_TX_RING_CNT - sc->bnx_txcnt) >=
2563             (BNX_NSEG_RSVD + BNX_NSEG_SPARE))
2564                 ifp->if_flags &= ~IFF_OACTIVE;
2565
2566         if (sc->bnx_txcnt == 0)
2567                 ifp->if_timer = 0;
2568
2569         if (!ifq_is_empty(&ifp->if_snd))
2570                 if_devstart(ifp);
2571 }
2572
2573 #ifdef DEVICE_POLLING
2574
2575 static void
2576 bnx_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
2577 {
2578         struct bnx_softc *sc = ifp->if_softc;
2579         struct bge_status_block *sblk = sc->bnx_ldata.bnx_status_block;
2580         uint16_t rx_prod, tx_cons;
2581
2582         switch(cmd) {
2583         case POLL_REGISTER:
2584                 bnx_disable_intr(sc);
2585                 break;
2586         case POLL_DEREGISTER:
2587                 bnx_enable_intr(sc);
2588                 break;
2589         case POLL_AND_CHECK_STATUS:
2590                 /*
2591                  * Process link state changes.
2592                  */
2593                 bnx_link_poll(sc);
2594                 /* Fall through */
2595         case POLL_ONLY:
2596                 sc->bnx_status_tag = sblk->bge_status_tag;
2597                 /*
2598                  * Use a load fence to ensure that status_tag
2599                  * is saved  before rx_prod and tx_cons.
2600                  */
2601                 cpu_lfence();
2602
2603                 rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
2604                 tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
2605                 if (ifp->if_flags & IFF_RUNNING) {
2606                         rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
2607                         if (sc->bnx_rx_saved_considx != rx_prod)
2608                                 bnx_rxeof(sc, rx_prod);
2609
2610                         tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
2611                         if (sc->bnx_tx_saved_considx != tx_cons)
2612                                 bnx_txeof(sc, tx_cons);
2613                 }
2614                 break;
2615         }
2616 }
2617
2618 #endif
2619
2620 static void
2621 bnx_intr_legacy(void *xsc)
2622 {
2623         struct bnx_softc *sc = xsc;
2624         struct bge_status_block *sblk = sc->bnx_ldata.bnx_status_block;
2625
2626         if (sc->bnx_status_tag == sblk->bge_status_tag) {
2627                 uint32_t val;
2628
2629                 val = pci_read_config(sc->bnx_dev, BGE_PCI_PCISTATE, 4);
2630                 if (val & BGE_PCISTAT_INTR_NOTACT)
2631                         return;
2632         }
2633
2634         /*
2635          * NOTE:
2636          * Interrupt will have to be disabled if tagged status
2637          * is used, else interrupt will always be asserted on
2638          * certain chips (at least on BCM5750 AX/BX).
2639          */
2640         bnx_writembx(sc, BGE_MBX_IRQ0_LO, 1);
2641
2642         bnx_intr(sc);
2643 }
2644
2645 static void
2646 bnx_msi(void *xsc)
2647 {
2648         struct bnx_softc *sc = xsc;
2649
2650         /* Disable interrupt first */
2651         bnx_writembx(sc, BGE_MBX_IRQ0_LO, 1);
2652         bnx_intr(sc);
2653 }
2654
2655 static void
2656 bnx_msi_oneshot(void *xsc)
2657 {
2658         bnx_intr(xsc);
2659 }
2660
2661 static void
2662 bnx_intr(struct bnx_softc *sc)
2663 {
2664         struct ifnet *ifp = &sc->arpcom.ac_if;
2665         struct bge_status_block *sblk = sc->bnx_ldata.bnx_status_block;
2666         uint16_t rx_prod, tx_cons;
2667         uint32_t status;
2668
2669         sc->bnx_status_tag = sblk->bge_status_tag;
2670         /*
2671          * Use a load fence to ensure that status_tag is saved
2672          * before rx_prod, tx_cons and status.
2673          */
2674         cpu_lfence();
2675
2676         rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
2677         tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
2678         status = sblk->bge_status;
2679
2680         if ((status & BGE_STATFLAG_LINKSTATE_CHANGED) || sc->bnx_link_evt)
2681                 bnx_link_poll(sc);
2682
2683         if (ifp->if_flags & IFF_RUNNING) {
2684                 if (sc->bnx_rx_saved_considx != rx_prod)
2685                         bnx_rxeof(sc, rx_prod);
2686
2687                 if (sc->bnx_tx_saved_considx != tx_cons)
2688                         bnx_txeof(sc, tx_cons);
2689         }
2690
2691         bnx_writembx(sc, BGE_MBX_IRQ0_LO, sc->bnx_status_tag << 24);
2692
2693         if (sc->bnx_coal_chg)
2694                 bnx_coal_change(sc);
2695 }
2696
2697 static void
2698 bnx_tick(void *xsc)
2699 {
2700         struct bnx_softc *sc = xsc;
2701         struct ifnet *ifp = &sc->arpcom.ac_if;
2702
2703         lwkt_serialize_enter(ifp->if_serializer);
2704
2705         KKASSERT(mycpuid == sc->bnx_stat_cpuid);
2706
2707         bnx_stats_update_regs(sc);
2708
2709         if (sc->bnx_flags & BNX_FLAG_TBI) {
2710                 /*
2711                  * Since in TBI mode auto-polling can't be used we should poll
2712                  * link status manually. Here we register pending link event
2713                  * and trigger interrupt.
2714                  */
2715                 sc->bnx_link_evt++;
2716                 BNX_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
2717         } else if (!sc->bnx_link) {
2718                 mii_tick(device_get_softc(sc->bnx_miibus));
2719         }
2720
2721         callout_reset(&sc->bnx_stat_timer, hz, bnx_tick, sc);
2722
2723         lwkt_serialize_exit(ifp->if_serializer);
2724 }
2725
2726 static void
2727 bnx_stats_update_regs(struct bnx_softc *sc)
2728 {
2729         struct ifnet *ifp = &sc->arpcom.ac_if;
2730         struct bge_mac_stats_regs stats;
2731         uint32_t *s;
2732         int i;
2733
2734         s = (uint32_t *)&stats;
2735         for (i = 0; i < sizeof(struct bge_mac_stats_regs); i += 4) {
2736                 *s = CSR_READ_4(sc, BGE_RX_STATS + i);
2737                 s++;
2738         }
2739
2740         ifp->if_collisions +=
2741            (stats.dot3StatsSingleCollisionFrames +
2742            stats.dot3StatsMultipleCollisionFrames +
2743            stats.dot3StatsExcessiveCollisions +
2744            stats.dot3StatsLateCollisions) -
2745            ifp->if_collisions;
2746 }
2747
2748 /*
2749  * Encapsulate an mbuf chain in the tx ring  by coupling the mbuf data
2750  * pointers to descriptors.
2751  */
2752 static int
2753 bnx_encap(struct bnx_softc *sc, struct mbuf **m_head0, uint32_t *txidx)
2754 {
2755         struct bge_tx_bd *d = NULL;
2756         uint16_t csum_flags = 0;
2757         bus_dma_segment_t segs[BNX_NSEG_NEW];
2758         bus_dmamap_t map;
2759         int error, maxsegs, nsegs, idx, i;
2760         struct mbuf *m_head = *m_head0, *m_new;
2761
2762         if (m_head->m_pkthdr.csum_flags) {
2763                 if (m_head->m_pkthdr.csum_flags & CSUM_IP)
2764                         csum_flags |= BGE_TXBDFLAG_IP_CSUM;
2765                 if (m_head->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
2766                         csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM;
2767                 if (m_head->m_flags & M_LASTFRAG)
2768                         csum_flags |= BGE_TXBDFLAG_IP_FRAG_END;
2769                 else if (m_head->m_flags & M_FRAG)
2770                         csum_flags |= BGE_TXBDFLAG_IP_FRAG;
2771         }
2772
2773         idx = *txidx;
2774         map = sc->bnx_cdata.bnx_tx_dmamap[idx];
2775
2776         maxsegs = (BGE_TX_RING_CNT - sc->bnx_txcnt) - BNX_NSEG_RSVD;
2777         KASSERT(maxsegs >= BNX_NSEG_SPARE,
2778                 ("not enough segments %d", maxsegs));
2779
2780         if (maxsegs > BNX_NSEG_NEW)
2781                 maxsegs = BNX_NSEG_NEW;
2782
2783         /*
2784          * Pad outbound frame to BGE_MIN_FRAMELEN for an unusual reason.
2785          * The bge hardware will pad out Tx runts to BGE_MIN_FRAMELEN,
2786          * but when such padded frames employ the bge IP/TCP checksum
2787          * offload, the hardware checksum assist gives incorrect results
2788          * (possibly from incorporating its own padding into the UDP/TCP
2789          * checksum; who knows).  If we pad such runts with zeros, the
2790          * onboard checksum comes out correct.
2791          */
2792         if ((csum_flags & BGE_TXBDFLAG_TCP_UDP_CSUM) &&
2793             m_head->m_pkthdr.len < BNX_MIN_FRAMELEN) {
2794                 error = m_devpad(m_head, BNX_MIN_FRAMELEN);
2795                 if (error)
2796                         goto back;
2797         }
2798
2799         if ((sc->bnx_flags & BNX_FLAG_SHORTDMA) && m_head->m_next != NULL) {
2800                 m_new = bnx_defrag_shortdma(m_head);
2801                 if (m_new == NULL) {
2802                         error = ENOBUFS;
2803                         goto back;
2804                 }
2805                 *m_head0 = m_head = m_new;
2806         }
2807         if (sc->bnx_force_defrag && m_head->m_next != NULL) {
2808                 /*
2809                  * Forcefully defragment mbuf chain to overcome hardware
2810                  * limitation which only support a single outstanding
2811                  * DMA read operation.  If it fails, keep moving on using
2812                  * the original mbuf chain.
2813                  */
2814                 m_new = m_defrag(m_head, MB_DONTWAIT);
2815                 if (m_new != NULL)
2816                         *m_head0 = m_head = m_new;
2817         }
2818
2819         error = bus_dmamap_load_mbuf_defrag(sc->bnx_cdata.bnx_tx_mtag, map,
2820                         m_head0, segs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
2821         if (error)
2822                 goto back;
2823
2824         m_head = *m_head0;
2825         bus_dmamap_sync(sc->bnx_cdata.bnx_tx_mtag, map, BUS_DMASYNC_PREWRITE);
2826
2827         for (i = 0; ; i++) {
2828                 d = &sc->bnx_ldata.bnx_tx_ring[idx];
2829
2830                 d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr);
2831                 d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr);
2832                 d->bge_len = segs[i].ds_len;
2833                 d->bge_flags = csum_flags;
2834
2835                 if (i == nsegs - 1)
2836                         break;
2837                 BNX_INC(idx, BGE_TX_RING_CNT);
2838         }
2839         /* Mark the last segment as end of packet... */
2840         d->bge_flags |= BGE_TXBDFLAG_END;
2841
2842         /* Set vlan tag to the first segment of the packet. */
2843         d = &sc->bnx_ldata.bnx_tx_ring[*txidx];
2844         if (m_head->m_flags & M_VLANTAG) {
2845                 d->bge_flags |= BGE_TXBDFLAG_VLAN_TAG;
2846                 d->bge_vlan_tag = m_head->m_pkthdr.ether_vlantag;
2847         } else {
2848                 d->bge_vlan_tag = 0;
2849         }
2850
2851         /*
2852          * Insure that the map for this transmission is placed at
2853          * the array index of the last descriptor in this chain.
2854          */
2855         sc->bnx_cdata.bnx_tx_dmamap[*txidx] = sc->bnx_cdata.bnx_tx_dmamap[idx];
2856         sc->bnx_cdata.bnx_tx_dmamap[idx] = map;
2857         sc->bnx_cdata.bnx_tx_chain[idx] = m_head;
2858         sc->bnx_txcnt += nsegs;
2859
2860         BNX_INC(idx, BGE_TX_RING_CNT);
2861         *txidx = idx;
2862 back:
2863         if (error) {
2864                 m_freem(*m_head0);
2865                 *m_head0 = NULL;
2866         }
2867         return error;
2868 }
2869
2870 /*
2871  * Main transmit routine. To avoid having to do mbuf copies, we put pointers
2872  * to the mbuf data regions directly in the transmit descriptors.
2873  */
2874 static void
2875 bnx_start(struct ifnet *ifp)
2876 {
2877         struct bnx_softc *sc = ifp->if_softc;
2878         struct mbuf *m_head = NULL;
2879         uint32_t prodidx;
2880         int need_trans;
2881
2882         if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
2883                 return;
2884
2885         prodidx = sc->bnx_tx_prodidx;
2886
2887         need_trans = 0;
2888         while (sc->bnx_cdata.bnx_tx_chain[prodidx] == NULL) {
2889                 m_head = ifq_dequeue(&ifp->if_snd, NULL);
2890                 if (m_head == NULL)
2891                         break;
2892
2893                 /*
2894                  * XXX
2895                  * The code inside the if() block is never reached since we
2896                  * must mark CSUM_IP_FRAGS in our if_hwassist to start getting
2897                  * requests to checksum TCP/UDP in a fragmented packet.
2898                  *
2899                  * XXX
2900                  * safety overkill.  If this is a fragmented packet chain
2901                  * with delayed TCP/UDP checksums, then only encapsulate
2902                  * it if we have enough descriptors to handle the entire
2903                  * chain at once.
2904                  * (paranoia -- may not actually be needed)
2905                  */
2906                 if ((m_head->m_flags & M_FIRSTFRAG) &&
2907                     (m_head->m_pkthdr.csum_flags & CSUM_DELAY_DATA)) {
2908                         if ((BGE_TX_RING_CNT - sc->bnx_txcnt) <
2909                             m_head->m_pkthdr.csum_data + BNX_NSEG_RSVD) {
2910                                 ifp->if_flags |= IFF_OACTIVE;
2911                                 ifq_prepend(&ifp->if_snd, m_head);
2912                                 break;
2913                         }
2914                 }
2915
2916                 /*
2917                  * Sanity check: avoid coming within BGE_NSEG_RSVD
2918                  * descriptors of the end of the ring.  Also make
2919                  * sure there are BGE_NSEG_SPARE descriptors for
2920                  * jumbo buffers' defragmentation.
2921                  */
2922                 if ((BGE_TX_RING_CNT - sc->bnx_txcnt) <
2923                     (BNX_NSEG_RSVD + BNX_NSEG_SPARE)) {
2924                         ifp->if_flags |= IFF_OACTIVE;
2925                         ifq_prepend(&ifp->if_snd, m_head);
2926                         break;
2927                 }
2928
2929                 /*
2930                  * Pack the data into the transmit ring. If we
2931                  * don't have room, set the OACTIVE flag and wait
2932                  * for the NIC to drain the ring.
2933                  */
2934                 if (bnx_encap(sc, &m_head, &prodidx)) {
2935                         ifp->if_flags |= IFF_OACTIVE;
2936                         ifp->if_oerrors++;
2937                         break;
2938                 }
2939                 need_trans = 1;
2940
2941                 ETHER_BPF_MTAP(ifp, m_head);
2942         }
2943
2944         if (!need_trans)
2945                 return;
2946
2947         /* Transmit */
2948         bnx_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
2949
2950         sc->bnx_tx_prodidx = prodidx;
2951
2952         /*
2953          * Set a timeout in case the chip goes out to lunch.
2954          */
2955         ifp->if_timer = 5;
2956 }
2957
2958 static void
2959 bnx_init(void *xsc)
2960 {
2961         struct bnx_softc *sc = xsc;
2962         struct ifnet *ifp = &sc->arpcom.ac_if;
2963         uint16_t *m;
2964         uint32_t mode;
2965
2966         ASSERT_SERIALIZED(ifp->if_serializer);
2967
2968         /* Cancel pending I/O and flush buffers. */
2969         bnx_stop(sc);
2970         bnx_reset(sc);
2971         bnx_chipinit(sc);
2972
2973         /*
2974          * Init the various state machines, ring
2975          * control blocks and firmware.
2976          */
2977         if (bnx_blockinit(sc)) {
2978                 if_printf(ifp, "initialization failure\n");
2979                 bnx_stop(sc);
2980                 return;
2981         }
2982
2983         /* Specify MTU. */
2984         CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu +
2985             ETHER_HDR_LEN + ETHER_CRC_LEN + EVL_ENCAPLEN);
2986
2987         /* Load our MAC address. */
2988         m = (uint16_t *)&sc->arpcom.ac_enaddr[0];
2989         CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0]));
2990         CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2]));
2991
2992         /* Enable or disable promiscuous mode as needed. */
2993         bnx_setpromisc(sc);
2994
2995         /* Program multicast filter. */
2996         bnx_setmulti(sc);
2997
2998         /* Init RX ring. */
2999         if (bnx_init_rx_ring_std(sc)) {
3000                 if_printf(ifp, "RX ring initialization failed\n");
3001                 bnx_stop(sc);
3002                 return;
3003         }
3004
3005         /* Init jumbo RX ring. */
3006         if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) {
3007                 if (bnx_init_rx_ring_jumbo(sc)) {
3008                         if_printf(ifp, "Jumbo RX ring initialization failed\n");
3009                         bnx_stop(sc);
3010                         return;
3011                 }
3012         }
3013
3014         /* Init our RX return ring index */
3015         sc->bnx_rx_saved_considx = 0;
3016
3017         /* Init TX ring. */
3018         bnx_init_tx_ring(sc);
3019
3020         /* Enable TX MAC state machine lockup fix. */
3021         mode = CSR_READ_4(sc, BGE_TX_MODE);
3022         mode |= BGE_TXMODE_MBUF_LOCKUP_FIX;
3023         if (sc->bnx_asicrev == BGE_ASICREV_BCM5720) {
3024                 mode &= ~(BGE_TXMODE_JMB_FRM_LEN | BGE_TXMODE_CNT_DN_MODE);
3025                 mode |= CSR_READ_4(sc, BGE_TX_MODE) &
3026                     (BGE_TXMODE_JMB_FRM_LEN | BGE_TXMODE_CNT_DN_MODE);
3027         }
3028         /* Turn on transmitter */
3029         CSR_WRITE_4(sc, BGE_TX_MODE, mode | BGE_TXMODE_ENABLE);
3030
3031         /* Turn on receiver */
3032         BNX_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3033
3034         /*
3035          * Set the number of good frames to receive after RX MBUF
3036          * Low Watermark has been reached.  After the RX MAC receives
3037          * this number of frames, it will drop subsequent incoming
3038          * frames until the MBUF High Watermark is reached.
3039          */
3040         if (BNX_IS_57765_FAMILY(sc))
3041                 CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 1);
3042         else
3043                 CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 2);
3044
3045         if (sc->bnx_irq_type == PCI_INTR_TYPE_MSI) {
3046                 if (bootverbose) {
3047                         if_printf(ifp, "MSI_MODE: %#x\n",
3048                             CSR_READ_4(sc, BGE_MSI_MODE));
3049                 }
3050         }
3051
3052         /* Tell firmware we're alive. */
3053         BNX_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3054
3055         /* Enable host interrupts if polling(4) is not enabled. */
3056         PCI_SETBIT(sc->bnx_dev, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA, 4);
3057 #ifdef DEVICE_POLLING
3058         if (ifp->if_flags & IFF_POLLING)
3059                 bnx_disable_intr(sc);
3060         else
3061 #endif
3062         bnx_enable_intr(sc);
3063
3064         bnx_ifmedia_upd(ifp);
3065
3066         ifp->if_flags |= IFF_RUNNING;
3067         ifp->if_flags &= ~IFF_OACTIVE;
3068
3069         callout_reset_bycpu(&sc->bnx_stat_timer, hz, bnx_tick, sc,
3070             sc->bnx_stat_cpuid);
3071 }
3072
3073 /*
3074  * Set media options.
3075  */
3076 static int
3077 bnx_ifmedia_upd(struct ifnet *ifp)
3078 {
3079         struct bnx_softc *sc = ifp->if_softc;
3080
3081         /* If this is a 1000baseX NIC, enable the TBI port. */
3082         if (sc->bnx_flags & BNX_FLAG_TBI) {
3083                 struct ifmedia *ifm = &sc->bnx_ifmedia;
3084
3085                 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
3086                         return(EINVAL);
3087
3088                 switch(IFM_SUBTYPE(ifm->ifm_media)) {
3089                 case IFM_AUTO:
3090                         break;
3091
3092                 case IFM_1000_SX:
3093                         if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3094                                 BNX_CLRBIT(sc, BGE_MAC_MODE,
3095                                     BGE_MACMODE_HALF_DUPLEX);
3096                         } else {
3097                                 BNX_SETBIT(sc, BGE_MAC_MODE,
3098                                     BGE_MACMODE_HALF_DUPLEX);
3099                         }
3100                         break;
3101                 default:
3102                         return(EINVAL);
3103                 }
3104         } else {
3105                 struct mii_data *mii = device_get_softc(sc->bnx_miibus);
3106
3107                 sc->bnx_link_evt++;
3108                 sc->bnx_link = 0;
3109                 if (mii->mii_instance) {
3110                         struct mii_softc *miisc;
3111
3112                         LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
3113                                 mii_phy_reset(miisc);
3114                 }
3115                 mii_mediachg(mii);
3116
3117                 /*
3118                  * Force an interrupt so that we will call bnx_link_upd
3119                  * if needed and clear any pending link state attention.
3120                  * Without this we are not getting any further interrupts
3121                  * for link state changes and thus will not UP the link and
3122                  * not be able to send in bnx_start.  The only way to get
3123                  * things working was to receive a packet and get an RX
3124                  * intr.
3125                  *
3126                  * bnx_tick should help for fiber cards and we might not
3127                  * need to do this here if BNX_FLAG_TBI is set but as
3128                  * we poll for fiber anyway it should not harm.
3129                  */
3130                 BNX_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
3131         }
3132         return(0);
3133 }
3134
3135 /*
3136  * Report current media status.
3137  */
3138 static void
3139 bnx_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
3140 {
3141         struct bnx_softc *sc = ifp->if_softc;
3142
3143         if (sc->bnx_flags & BNX_FLAG_TBI) {
3144                 ifmr->ifm_status = IFM_AVALID;
3145                 ifmr->ifm_active = IFM_ETHER;
3146                 if (CSR_READ_4(sc, BGE_MAC_STS) &
3147                     BGE_MACSTAT_TBI_PCS_SYNCHED) {
3148                         ifmr->ifm_status |= IFM_ACTIVE;
3149                 } else {
3150                         ifmr->ifm_active |= IFM_NONE;
3151                         return;
3152                 }
3153
3154                 ifmr->ifm_active |= IFM_1000_SX;
3155                 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX)
3156                         ifmr->ifm_active |= IFM_HDX;
3157                 else
3158                         ifmr->ifm_active |= IFM_FDX;
3159         } else {
3160                 struct mii_data *mii = device_get_softc(sc->bnx_miibus);
3161
3162                 mii_pollstat(mii);
3163                 ifmr->ifm_active = mii->mii_media_active;
3164                 ifmr->ifm_status = mii->mii_media_status;
3165         }
3166 }
3167
3168 static int
3169 bnx_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
3170 {
3171         struct bnx_softc *sc = ifp->if_softc;
3172         struct ifreq *ifr = (struct ifreq *)data;
3173         int mask, error = 0;
3174
3175         ASSERT_SERIALIZED(ifp->if_serializer);
3176
3177         switch (command) {
3178         case SIOCSIFMTU:
3179                 if ((!BNX_IS_JUMBO_CAPABLE(sc) && ifr->ifr_mtu > ETHERMTU) ||
3180                     (BNX_IS_JUMBO_CAPABLE(sc) &&
3181                      ifr->ifr_mtu > BNX_JUMBO_MTU)) {
3182                         error = EINVAL;
3183                 } else if (ifp->if_mtu != ifr->ifr_mtu) {
3184                         ifp->if_mtu = ifr->ifr_mtu;
3185                         if (ifp->if_flags & IFF_RUNNING)
3186                                 bnx_init(sc);
3187                 }
3188                 break;
3189         case SIOCSIFFLAGS:
3190                 if (ifp->if_flags & IFF_UP) {
3191                         if (ifp->if_flags & IFF_RUNNING) {
3192                                 mask = ifp->if_flags ^ sc->bnx_if_flags;
3193
3194                                 /*
3195                                  * If only the state of the PROMISC flag
3196                                  * changed, then just use the 'set promisc
3197                                  * mode' command instead of reinitializing
3198                                  * the entire NIC. Doing a full re-init
3199                                  * means reloading the firmware and waiting
3200                                  * for it to start up, which may take a
3201                                  * second or two.  Similarly for ALLMULTI.
3202                                  */
3203                                 if (mask & IFF_PROMISC)
3204                                         bnx_setpromisc(sc);
3205                                 if (mask & IFF_ALLMULTI)
3206                                         bnx_setmulti(sc);
3207                         } else {
3208                                 bnx_init(sc);
3209                         }
3210                 } else if (ifp->if_flags & IFF_RUNNING) {
3211                         bnx_stop(sc);
3212                 }
3213                 sc->bnx_if_flags = ifp->if_flags;
3214                 break;
3215         case SIOCADDMULTI:
3216         case SIOCDELMULTI:
3217                 if (ifp->if_flags & IFF_RUNNING)
3218                         bnx_setmulti(sc);
3219                 break;
3220         case SIOCSIFMEDIA:
3221         case SIOCGIFMEDIA:
3222                 if (sc->bnx_flags & BNX_FLAG_TBI) {
3223                         error = ifmedia_ioctl(ifp, ifr,
3224                             &sc->bnx_ifmedia, command);
3225                 } else {
3226                         struct mii_data *mii;
3227
3228                         mii = device_get_softc(sc->bnx_miibus);
3229                         error = ifmedia_ioctl(ifp, ifr,
3230                                               &mii->mii_media, command);
3231                 }
3232                 break;
3233         case SIOCSIFCAP:
3234                 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
3235                 if (mask & IFCAP_HWCSUM) {
3236                         ifp->if_capenable ^= (mask & IFCAP_HWCSUM);
3237                         if (IFCAP_HWCSUM & ifp->if_capenable)
3238                                 ifp->if_hwassist = BNX_CSUM_FEATURES;
3239                         else
3240                                 ifp->if_hwassist = 0;
3241                 }
3242                 break;
3243         default:
3244                 error = ether_ioctl(ifp, command, data);
3245                 break;
3246         }
3247         return error;
3248 }
3249
3250 static void
3251 bnx_watchdog(struct ifnet *ifp)
3252 {
3253         struct bnx_softc *sc = ifp->if_softc;
3254
3255         if_printf(ifp, "watchdog timeout -- resetting\n");
3256
3257         bnx_init(sc);
3258
3259         ifp->if_oerrors++;
3260
3261         if (!ifq_is_empty(&ifp->if_snd))
3262                 if_devstart(ifp);
3263 }
3264
3265 /*
3266  * Stop the adapter and free any mbufs allocated to the
3267  * RX and TX lists.
3268  */
3269 static void
3270 bnx_stop(struct bnx_softc *sc)
3271 {
3272         struct ifnet *ifp = &sc->arpcom.ac_if;
3273
3274         ASSERT_SERIALIZED(ifp->if_serializer);
3275
3276         callout_stop(&sc->bnx_stat_timer);
3277
3278         /*
3279          * Disable all of the receiver blocks
3280          */
3281         bnx_stop_block(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3282         bnx_stop_block(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
3283         bnx_stop_block(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
3284         bnx_stop_block(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE);
3285         bnx_stop_block(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
3286         bnx_stop_block(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE);
3287
3288         /*
3289          * Disable all of the transmit blocks
3290          */
3291         bnx_stop_block(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
3292         bnx_stop_block(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
3293         bnx_stop_block(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
3294         bnx_stop_block(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE);
3295         bnx_stop_block(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE);
3296         bnx_stop_block(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
3297
3298         /*
3299          * Shut down all of the memory managers and related
3300          * state machines.
3301          */
3302         bnx_stop_block(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
3303         bnx_stop_block(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE);
3304         CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
3305         CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
3306
3307         /* Disable host interrupts. */
3308         bnx_disable_intr(sc);
3309
3310         /*
3311          * Tell firmware we're shutting down.
3312          */
3313         BNX_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3314
3315         /* Free the RX lists. */
3316         bnx_free_rx_ring_std(sc);
3317
3318         /* Free jumbo RX list. */
3319         if (BNX_IS_JUMBO_CAPABLE(sc))
3320                 bnx_free_rx_ring_jumbo(sc);
3321
3322         /* Free TX buffers. */
3323         bnx_free_tx_ring(sc);
3324
3325         sc->bnx_status_tag = 0;
3326         sc->bnx_link = 0;
3327         sc->bnx_coal_chg = 0;
3328
3329         sc->bnx_tx_saved_considx = BNX_TXCONS_UNSET;
3330
3331         ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3332         ifp->if_timer = 0;
3333 }
3334
3335 /*
3336  * Stop all chip I/O so that the kernel's probe routines don't
3337  * get confused by errant DMAs when rebooting.
3338  */
3339 static void
3340 bnx_shutdown(device_t dev)
3341 {
3342         struct bnx_softc *sc = device_get_softc(dev);
3343         struct ifnet *ifp = &sc->arpcom.ac_if;
3344
3345         lwkt_serialize_enter(ifp->if_serializer);
3346         bnx_stop(sc);
3347         bnx_reset(sc);
3348         lwkt_serialize_exit(ifp->if_serializer);
3349 }
3350
3351 static int
3352 bnx_suspend(device_t dev)
3353 {
3354         struct bnx_softc *sc = device_get_softc(dev);
3355         struct ifnet *ifp = &sc->arpcom.ac_if;
3356
3357         lwkt_serialize_enter(ifp->if_serializer);
3358         bnx_stop(sc);
3359         lwkt_serialize_exit(ifp->if_serializer);
3360
3361         return 0;
3362 }
3363
3364 static int
3365 bnx_resume(device_t dev)
3366 {
3367         struct bnx_softc *sc = device_get_softc(dev);
3368         struct ifnet *ifp = &sc->arpcom.ac_if;
3369
3370         lwkt_serialize_enter(ifp->if_serializer);
3371
3372         if (ifp->if_flags & IFF_UP) {
3373                 bnx_init(sc);
3374
3375                 if (!ifq_is_empty(&ifp->if_snd))
3376                         if_devstart(ifp);
3377         }
3378
3379         lwkt_serialize_exit(ifp->if_serializer);
3380
3381         return 0;
3382 }
3383
3384 static void
3385 bnx_setpromisc(struct bnx_softc *sc)
3386 {
3387         struct ifnet *ifp = &sc->arpcom.ac_if;
3388
3389         if (ifp->if_flags & IFF_PROMISC)
3390                 BNX_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3391         else
3392                 BNX_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3393 }
3394
3395 static void
3396 bnx_dma_free(struct bnx_softc *sc)
3397 {
3398         int i;
3399
3400         /* Destroy RX mbuf DMA stuffs. */
3401         if (sc->bnx_cdata.bnx_rx_mtag != NULL) {
3402                 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3403                         bus_dmamap_destroy(sc->bnx_cdata.bnx_rx_mtag,
3404                             sc->bnx_cdata.bnx_rx_std_dmamap[i]);
3405                 }
3406                 bus_dmamap_destroy(sc->bnx_cdata.bnx_rx_mtag,
3407                                    sc->bnx_cdata.bnx_rx_tmpmap);
3408                 bus_dma_tag_destroy(sc->bnx_cdata.bnx_rx_mtag);
3409         }
3410
3411         /* Destroy TX mbuf DMA stuffs. */
3412         if (sc->bnx_cdata.bnx_tx_mtag != NULL) {
3413                 for (i = 0; i < BGE_TX_RING_CNT; i++) {
3414                         bus_dmamap_destroy(sc->bnx_cdata.bnx_tx_mtag,
3415                             sc->bnx_cdata.bnx_tx_dmamap[i]);
3416                 }
3417                 bus_dma_tag_destroy(sc->bnx_cdata.bnx_tx_mtag);
3418         }
3419
3420         /* Destroy standard RX ring */
3421         bnx_dma_block_free(sc->bnx_cdata.bnx_rx_std_ring_tag,
3422                            sc->bnx_cdata.bnx_rx_std_ring_map,
3423                            sc->bnx_ldata.bnx_rx_std_ring);
3424
3425         if (BNX_IS_JUMBO_CAPABLE(sc))
3426                 bnx_free_jumbo_mem(sc);
3427
3428         /* Destroy RX return ring */
3429         bnx_dma_block_free(sc->bnx_cdata.bnx_rx_return_ring_tag,
3430                            sc->bnx_cdata.bnx_rx_return_ring_map,
3431                            sc->bnx_ldata.bnx_rx_return_ring);
3432
3433         /* Destroy TX ring */
3434         bnx_dma_block_free(sc->bnx_cdata.bnx_tx_ring_tag,
3435                            sc->bnx_cdata.bnx_tx_ring_map,
3436                            sc->bnx_ldata.bnx_tx_ring);
3437
3438         /* Destroy status block */
3439         bnx_dma_block_free(sc->bnx_cdata.bnx_status_tag,
3440                            sc->bnx_cdata.bnx_status_map,
3441                            sc->bnx_ldata.bnx_status_block);
3442
3443         /* Destroy the parent tag */
3444         if (sc->bnx_cdata.bnx_parent_tag != NULL)
3445                 bus_dma_tag_destroy(sc->bnx_cdata.bnx_parent_tag);
3446 }
3447
3448 static int
3449 bnx_dma_alloc(struct bnx_softc *sc)
3450 {
3451         struct ifnet *ifp = &sc->arpcom.ac_if;
3452         int i, error;
3453
3454         /*
3455          * Allocate the parent bus DMA tag appropriate for PCI.
3456          *
3457          * All of the NetExtreme/NetLink controllers have 4GB boundary
3458          * DMA bug.
3459          * Whenever an address crosses a multiple of the 4GB boundary
3460          * (including 4GB, 8Gb, 12Gb, etc.) and makes the transition
3461          * from 0xX_FFFF_FFFF to 0x(X+1)_0000_0000 an internal DMA
3462          * state machine will lockup and cause the device to hang.
3463          */
3464         error = bus_dma_tag_create(NULL, 1, BGE_DMA_BOUNDARY_4G,
3465                                    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3466                                    NULL, NULL,
3467                                    BUS_SPACE_MAXSIZE_32BIT, 0,
3468                                    BUS_SPACE_MAXSIZE_32BIT,
3469                                    0, &sc->bnx_cdata.bnx_parent_tag);
3470         if (error) {
3471                 if_printf(ifp, "could not allocate parent dma tag\n");
3472                 return error;
3473         }
3474
3475         /*
3476          * Create DMA tag and maps for RX mbufs.
3477          */
3478         error = bus_dma_tag_create(sc->bnx_cdata.bnx_parent_tag, 1, 0,
3479                                    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3480                                    NULL, NULL, MCLBYTES, 1, MCLBYTES,
3481                                    BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
3482                                    &sc->bnx_cdata.bnx_rx_mtag);
3483         if (error) {
3484                 if_printf(ifp, "could not allocate RX mbuf dma tag\n");
3485                 return error;
3486         }
3487
3488         error = bus_dmamap_create(sc->bnx_cdata.bnx_rx_mtag,
3489                                   BUS_DMA_WAITOK, &sc->bnx_cdata.bnx_rx_tmpmap);
3490         if (error) {
3491                 bus_dma_tag_destroy(sc->bnx_cdata.bnx_rx_mtag);
3492                 sc->bnx_cdata.bnx_rx_mtag = NULL;
3493                 return error;
3494         }
3495
3496         for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3497                 error = bus_dmamap_create(sc->bnx_cdata.bnx_rx_mtag,
3498                                           BUS_DMA_WAITOK,
3499                                           &sc->bnx_cdata.bnx_rx_std_dmamap[i]);
3500                 if (error) {
3501                         int j;
3502
3503                         for (j = 0; j < i; ++j) {
3504                                 bus_dmamap_destroy(sc->bnx_cdata.bnx_rx_mtag,
3505                                         sc->bnx_cdata.bnx_rx_std_dmamap[j]);
3506                         }
3507                         bus_dma_tag_destroy(sc->bnx_cdata.bnx_rx_mtag);
3508                         sc->bnx_cdata.bnx_rx_mtag = NULL;
3509
3510                         if_printf(ifp, "could not create DMA map for RX\n");
3511                         return error;
3512                 }
3513         }
3514
3515         /*
3516          * Create DMA tag and maps for TX mbufs.
3517          */
3518         error = bus_dma_tag_create(sc->bnx_cdata.bnx_parent_tag, 1, 0,
3519                                    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3520                                    NULL, NULL,
3521                                    BNX_JUMBO_FRAMELEN, BNX_NSEG_NEW, MCLBYTES,
3522                                    BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK |
3523                                    BUS_DMA_ONEBPAGE,
3524                                    &sc->bnx_cdata.bnx_tx_mtag);
3525         if (error) {
3526                 if_printf(ifp, "could not allocate TX mbuf dma tag\n");
3527                 return error;
3528         }
3529
3530         for (i = 0; i < BGE_TX_RING_CNT; i++) {
3531                 error = bus_dmamap_create(sc->bnx_cdata.bnx_tx_mtag,
3532                                           BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
3533                                           &sc->bnx_cdata.bnx_tx_dmamap[i]);
3534                 if (error) {
3535                         int j;
3536
3537                         for (j = 0; j < i; ++j) {
3538                                 bus_dmamap_destroy(sc->bnx_cdata.bnx_tx_mtag,
3539                                         sc->bnx_cdata.bnx_tx_dmamap[j]);
3540                         }
3541                         bus_dma_tag_destroy(sc->bnx_cdata.bnx_tx_mtag);
3542                         sc->bnx_cdata.bnx_tx_mtag = NULL;
3543
3544                         if_printf(ifp, "could not create DMA map for TX\n");
3545                         return error;
3546                 }
3547         }
3548
3549         /*
3550          * Create DMA stuffs for standard RX ring.
3551          */
3552         error = bnx_dma_block_alloc(sc, BGE_STD_RX_RING_SZ,
3553                                     &sc->bnx_cdata.bnx_rx_std_ring_tag,
3554                                     &sc->bnx_cdata.bnx_rx_std_ring_map,
3555                                     (void *)&sc->bnx_ldata.bnx_rx_std_ring,
3556                                     &sc->bnx_ldata.bnx_rx_std_ring_paddr);
3557         if (error) {
3558                 if_printf(ifp, "could not create std RX ring\n");
3559                 return error;
3560         }
3561
3562         /*
3563          * Create jumbo buffer pool.
3564          */
3565         if (BNX_IS_JUMBO_CAPABLE(sc)) {
3566                 error = bnx_alloc_jumbo_mem(sc);
3567                 if (error) {
3568                         if_printf(ifp, "could not create jumbo buffer pool\n");
3569                         return error;
3570                 }
3571         }
3572
3573         /*
3574          * Create DMA stuffs for RX return ring.
3575          */
3576         error = bnx_dma_block_alloc(sc,
3577             BGE_RX_RTN_RING_SZ(sc->bnx_return_ring_cnt),
3578             &sc->bnx_cdata.bnx_rx_return_ring_tag,
3579             &sc->bnx_cdata.bnx_rx_return_ring_map,
3580             (void *)&sc->bnx_ldata.bnx_rx_return_ring,
3581             &sc->bnx_ldata.bnx_rx_return_ring_paddr);
3582         if (error) {
3583                 if_printf(ifp, "could not create RX ret ring\n");
3584                 return error;
3585         }
3586
3587         /*
3588          * Create DMA stuffs for TX ring.
3589          */
3590         error = bnx_dma_block_alloc(sc, BGE_TX_RING_SZ,
3591                                     &sc->bnx_cdata.bnx_tx_ring_tag,
3592                                     &sc->bnx_cdata.bnx_tx_ring_map,
3593                                     (void *)&sc->bnx_ldata.bnx_tx_ring,
3594                                     &sc->bnx_ldata.bnx_tx_ring_paddr);
3595         if (error) {
3596                 if_printf(ifp, "could not create TX ring\n");
3597                 return error;
3598         }
3599
3600         /*
3601          * Create DMA stuffs for status block.
3602          */
3603         error = bnx_dma_block_alloc(sc, BGE_STATUS_BLK_SZ,
3604                                     &sc->bnx_cdata.bnx_status_tag,
3605                                     &sc->bnx_cdata.bnx_status_map,
3606                                     (void *)&sc->bnx_ldata.bnx_status_block,
3607                                     &sc->bnx_ldata.bnx_status_block_paddr);
3608         if (error) {
3609                 if_printf(ifp, "could not create status block\n");
3610                 return error;
3611         }
3612
3613         return 0;
3614 }
3615
3616 static int
3617 bnx_dma_block_alloc(struct bnx_softc *sc, bus_size_t size, bus_dma_tag_t *tag,
3618                     bus_dmamap_t *map, void **addr, bus_addr_t *paddr)
3619 {
3620         bus_dmamem_t dmem;
3621         int error;
3622
3623         error = bus_dmamem_coherent(sc->bnx_cdata.bnx_parent_tag, PAGE_SIZE, 0,
3624                                     BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3625                                     size, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
3626         if (error)
3627                 return error;
3628
3629         *tag = dmem.dmem_tag;
3630         *map = dmem.dmem_map;
3631         *addr = dmem.dmem_addr;
3632         *paddr = dmem.dmem_busaddr;
3633
3634         return 0;
3635 }
3636
3637 static void
3638 bnx_dma_block_free(bus_dma_tag_t tag, bus_dmamap_t map, void *addr)
3639 {
3640         if (tag != NULL) {
3641                 bus_dmamap_unload(tag, map);
3642                 bus_dmamem_free(tag, addr, map);
3643                 bus_dma_tag_destroy(tag);
3644         }
3645 }
3646
3647 static void
3648 bnx_tbi_link_upd(struct bnx_softc *sc, uint32_t status)
3649 {
3650         struct ifnet *ifp = &sc->arpcom.ac_if;
3651
3652 #define PCS_ENCODE_ERR  (BGE_MACSTAT_PORT_DECODE_ERROR|BGE_MACSTAT_MI_COMPLETE)
3653
3654         /*
3655          * Sometimes PCS encoding errors are detected in
3656          * TBI mode (on fiber NICs), and for some reason
3657          * the chip will signal them as link changes.
3658          * If we get a link change event, but the 'PCS
3659          * encoding error' bit in the MAC status register
3660          * is set, don't bother doing a link check.
3661          * This avoids spurious "gigabit link up" messages
3662          * that sometimes appear on fiber NICs during
3663          * periods of heavy traffic.
3664          */
3665         if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) {
3666                 if (!sc->bnx_link) {
3667                         sc->bnx_link++;
3668                         if (sc->bnx_asicrev == BGE_ASICREV_BCM5704) {
3669                                 BNX_CLRBIT(sc, BGE_MAC_MODE,
3670                                     BGE_MACMODE_TBI_SEND_CFGS);
3671                         }
3672                         CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF);
3673
3674                         if (bootverbose)
3675                                 if_printf(ifp, "link UP\n");
3676
3677                         ifp->if_link_state = LINK_STATE_UP;
3678                         if_link_state_change(ifp);
3679                 }
3680         } else if ((status & PCS_ENCODE_ERR) != PCS_ENCODE_ERR) {
3681                 if (sc->bnx_link) {
3682                         sc->bnx_link = 0;
3683
3684                         if (bootverbose)
3685                                 if_printf(ifp, "link DOWN\n");
3686
3687                         ifp->if_link_state = LINK_STATE_DOWN;
3688                         if_link_state_change(ifp);
3689                 }
3690         }
3691
3692 #undef PCS_ENCODE_ERR
3693
3694         /* Clear the attention. */
3695         CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3696             BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3697             BGE_MACSTAT_LINK_CHANGED);
3698 }
3699
3700 static void
3701 bnx_copper_link_upd(struct bnx_softc *sc, uint32_t status __unused)
3702 {
3703         struct ifnet *ifp = &sc->arpcom.ac_if;
3704         struct mii_data *mii = device_get_softc(sc->bnx_miibus);
3705
3706         mii_pollstat(mii);
3707         bnx_miibus_statchg(sc->bnx_dev);
3708
3709         if (bootverbose) {
3710                 if (sc->bnx_link)
3711                         if_printf(ifp, "link UP\n");
3712                 else
3713                         if_printf(ifp, "link DOWN\n");
3714         }
3715
3716         /* Clear the attention. */
3717         CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3718             BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3719             BGE_MACSTAT_LINK_CHANGED);
3720 }
3721
3722 static void
3723 bnx_autopoll_link_upd(struct bnx_softc *sc, uint32_t status __unused)
3724 {
3725         struct ifnet *ifp = &sc->arpcom.ac_if;
3726         struct mii_data *mii = device_get_softc(sc->bnx_miibus);
3727
3728         mii_pollstat(mii);
3729
3730         if (!sc->bnx_link &&
3731             (mii->mii_media_status & IFM_ACTIVE) &&
3732             IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
3733                 sc->bnx_link++;
3734                 if (bootverbose)
3735                         if_printf(ifp, "link UP\n");
3736         } else if (sc->bnx_link &&
3737             (!(mii->mii_media_status & IFM_ACTIVE) ||
3738             IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
3739                 sc->bnx_link = 0;
3740                 if (bootverbose)
3741                         if_printf(ifp, "link DOWN\n");
3742         }
3743
3744         /* Clear the attention. */
3745         CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3746             BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3747             BGE_MACSTAT_LINK_CHANGED);
3748 }
3749
3750 static int
3751 bnx_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS)
3752 {
3753         struct bnx_softc *sc = arg1;
3754
3755         return bnx_sysctl_coal_chg(oidp, arg1, arg2, req,
3756             &sc->bnx_rx_coal_ticks,
3757             BNX_RX_COAL_TICKS_MIN, BNX_RX_COAL_TICKS_MAX,
3758             BNX_RX_COAL_TICKS_CHG);
3759 }
3760
3761 static int
3762 bnx_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS)
3763 {
3764         struct bnx_softc *sc = arg1;
3765
3766         return bnx_sysctl_coal_chg(oidp, arg1, arg2, req,
3767             &sc->bnx_tx_coal_ticks,
3768             BNX_TX_COAL_TICKS_MIN, BNX_TX_COAL_TICKS_MAX,
3769             BNX_TX_COAL_TICKS_CHG);
3770 }
3771
3772 static int
3773 bnx_sysctl_rx_coal_bds(SYSCTL_HANDLER_ARGS)
3774 {
3775         struct bnx_softc *sc = arg1;
3776
3777         return bnx_sysctl_coal_chg(oidp, arg1, arg2, req,
3778             &sc->bnx_rx_coal_bds,
3779             BNX_RX_COAL_BDS_MIN, BNX_RX_COAL_BDS_MAX,
3780             BNX_RX_COAL_BDS_CHG);
3781 }
3782
3783 static int
3784 bnx_sysctl_tx_coal_bds(SYSCTL_HANDLER_ARGS)
3785 {
3786         struct bnx_softc *sc = arg1;
3787
3788         return bnx_sysctl_coal_chg(oidp, arg1, arg2, req,
3789             &sc->bnx_tx_coal_bds,
3790             BNX_TX_COAL_BDS_MIN, BNX_TX_COAL_BDS_MAX,
3791             BNX_TX_COAL_BDS_CHG);
3792 }
3793
3794 static int
3795 bnx_sysctl_rx_coal_bds_int(SYSCTL_HANDLER_ARGS)
3796 {
3797         struct bnx_softc *sc = arg1;
3798
3799         return bnx_sysctl_coal_chg(oidp, arg1, arg2, req,
3800             &sc->bnx_rx_coal_bds_int,
3801             BNX_RX_COAL_BDS_MIN, BNX_RX_COAL_BDS_MAX,
3802             BNX_RX_COAL_BDS_INT_CHG);
3803 }
3804
3805 static int
3806 bnx_sysctl_tx_coal_bds_int(SYSCTL_HANDLER_ARGS)
3807 {
3808         struct bnx_softc *sc = arg1;
3809
3810         return bnx_sysctl_coal_chg(oidp, arg1, arg2, req,
3811             &sc->bnx_tx_coal_bds_int,
3812             BNX_TX_COAL_BDS_MIN, BNX_TX_COAL_BDS_MAX,
3813             BNX_TX_COAL_BDS_INT_CHG);
3814 }
3815
3816 static int
3817 bnx_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *coal,
3818     int coal_min, int coal_max, uint32_t coal_chg_mask)
3819 {
3820         struct bnx_softc *sc = arg1;
3821         struct ifnet *ifp = &sc->arpcom.ac_if;
3822         int error = 0, v;
3823
3824         lwkt_serialize_enter(ifp->if_serializer);
3825
3826         v = *coal;
3827         error = sysctl_handle_int(oidp, &v, 0, req);
3828         if (!error && req->newptr != NULL) {
3829                 if (v < coal_min || v > coal_max) {
3830                         error = EINVAL;
3831                 } else {
3832                         *coal = v;
3833                         sc->bnx_coal_chg |= coal_chg_mask;
3834                 }
3835         }
3836
3837         lwkt_serialize_exit(ifp->if_serializer);
3838         return error;
3839 }
3840
3841 static void
3842 bnx_coal_change(struct bnx_softc *sc)
3843 {
3844         struct ifnet *ifp = &sc->arpcom.ac_if;
3845         uint32_t val;
3846
3847         ASSERT_SERIALIZED(ifp->if_serializer);
3848
3849         if (sc->bnx_coal_chg & BNX_RX_COAL_TICKS_CHG) {
3850                 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS,
3851                             sc->bnx_rx_coal_ticks);
3852                 DELAY(10);
3853                 val = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS);
3854
3855                 if (bootverbose) {
3856                         if_printf(ifp, "rx_coal_ticks -> %u\n",
3857                                   sc->bnx_rx_coal_ticks);
3858                 }
3859         }
3860
3861         if (sc->bnx_coal_chg & BNX_TX_COAL_TICKS_CHG) {
3862                 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS,
3863                             sc->bnx_tx_coal_ticks);
3864                 DELAY(10);
3865                 val = CSR_READ_4(sc, BGE_HCC_TX_COAL_TICKS);
3866
3867                 if (bootverbose) {
3868                         if_printf(ifp, "tx_coal_ticks -> %u\n",
3869                                   sc->bnx_tx_coal_ticks);
3870                 }
3871         }
3872
3873         if (sc->bnx_coal_chg & BNX_RX_COAL_BDS_CHG) {
3874                 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS,
3875                             sc->bnx_rx_coal_bds);
3876                 DELAY(10);
3877                 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS);
3878
3879                 if (bootverbose) {
3880                         if_printf(ifp, "rx_coal_bds -> %u\n",
3881                                   sc->bnx_rx_coal_bds);
3882                 }
3883         }
3884
3885         if (sc->bnx_coal_chg & BNX_TX_COAL_BDS_CHG) {
3886                 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS,
3887                             sc->bnx_tx_coal_bds);
3888                 DELAY(10);
3889                 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS);
3890
3891                 if (bootverbose) {
3892                         if_printf(ifp, "tx_max_coal_bds -> %u\n",
3893                                   sc->bnx_tx_coal_bds);
3894                 }
3895         }
3896
3897         if (sc->bnx_coal_chg & BNX_RX_COAL_BDS_INT_CHG) {
3898                 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT,
3899                     sc->bnx_rx_coal_bds_int);
3900                 DELAY(10);
3901                 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT);
3902
3903                 if (bootverbose) {
3904                         if_printf(ifp, "rx_coal_bds_int -> %u\n",
3905                             sc->bnx_rx_coal_bds_int);
3906                 }
3907         }
3908
3909         if (sc->bnx_coal_chg & BNX_TX_COAL_BDS_INT_CHG) {
3910                 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT,
3911                     sc->bnx_tx_coal_bds_int);
3912                 DELAY(10);
3913                 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT);
3914
3915                 if (bootverbose) {
3916                         if_printf(ifp, "tx_coal_bds_int -> %u\n",
3917                             sc->bnx_tx_coal_bds_int);
3918                 }
3919         }
3920
3921         sc->bnx_coal_chg = 0;
3922 }
3923
3924 static void
3925 bnx_enable_intr(struct bnx_softc *sc)
3926 {
3927         struct ifnet *ifp = &sc->arpcom.ac_if;
3928
3929         lwkt_serialize_handler_enable(ifp->if_serializer);
3930
3931         /*
3932          * Enable interrupt.
3933          */
3934         bnx_writembx(sc, BGE_MBX_IRQ0_LO, sc->bnx_status_tag << 24);
3935         if (sc->bnx_flags & BNX_FLAG_ONESHOT_MSI) {
3936                 /* XXX Linux driver */
3937                 bnx_writembx(sc, BGE_MBX_IRQ0_LO, sc->bnx_status_tag << 24);
3938         }
3939
3940         /*
3941          * Unmask the interrupt when we stop polling.
3942          */
3943         PCI_CLRBIT(sc->bnx_dev, BGE_PCI_MISC_CTL,
3944             BGE_PCIMISCCTL_MASK_PCI_INTR, 4);
3945
3946         /*
3947          * Trigger another interrupt, since above writing
3948          * to interrupt mailbox0 may acknowledge pending
3949          * interrupt.
3950          */
3951         BNX_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
3952 }
3953
3954 static void
3955 bnx_disable_intr(struct bnx_softc *sc)
3956 {
3957         struct ifnet *ifp = &sc->arpcom.ac_if;
3958
3959         /*
3960          * Mask the interrupt when we start polling.
3961          */
3962         PCI_SETBIT(sc->bnx_dev, BGE_PCI_MISC_CTL,
3963             BGE_PCIMISCCTL_MASK_PCI_INTR, 4);
3964
3965         /*
3966          * Acknowledge possible asserted interrupt.
3967          */
3968         bnx_writembx(sc, BGE_MBX_IRQ0_LO, 1);
3969
3970         lwkt_serialize_handler_disable(ifp->if_serializer);
3971 }
3972
3973 static int
3974 bnx_get_eaddr_mem(struct bnx_softc *sc, uint8_t ether_addr[])
3975 {
3976         uint32_t mac_addr;
3977         int ret = 1;
3978
3979         mac_addr = bnx_readmem_ind(sc, 0x0c14);
3980         if ((mac_addr >> 16) == 0x484b) {
3981                 ether_addr[0] = (uint8_t)(mac_addr >> 8);
3982                 ether_addr[1] = (uint8_t)mac_addr;
3983                 mac_addr = bnx_readmem_ind(sc, 0x0c18);
3984                 ether_addr[2] = (uint8_t)(mac_addr >> 24);
3985                 ether_addr[3] = (uint8_t)(mac_addr >> 16);
3986                 ether_addr[4] = (uint8_t)(mac_addr >> 8);
3987                 ether_addr[5] = (uint8_t)mac_addr;
3988                 ret = 0;
3989         }
3990         return ret;
3991 }
3992
3993 static int
3994 bnx_get_eaddr_nvram(struct bnx_softc *sc, uint8_t ether_addr[])
3995 {
3996         int mac_offset = BGE_EE_MAC_OFFSET;
3997
3998         if (BNX_IS_5717_PLUS(sc)) {
3999                 int f;
4000
4001                 f = pci_get_function(sc->bnx_dev);
4002                 if (f & 1)
4003                         mac_offset = BGE_EE_MAC_OFFSET_5717;
4004                 if (f > 1)
4005                         mac_offset += BGE_EE_MAC_OFFSET_5717_OFF;
4006         } else if (sc->bnx_asicrev == BGE_ASICREV_BCM5906) {
4007                 mac_offset = BGE_EE_MAC_OFFSET_5906;
4008         }
4009
4010         return bnx_read_nvram(sc, ether_addr, mac_offset + 2, ETHER_ADDR_LEN);
4011 }
4012
4013 static int
4014 bnx_get_eaddr_eeprom(struct bnx_softc *sc, uint8_t ether_addr[])
4015 {
4016         if (sc->bnx_flags & BNX_FLAG_NO_EEPROM)
4017                 return 1;
4018
4019         return bnx_read_eeprom(sc, ether_addr, BGE_EE_MAC_OFFSET + 2,
4020                                ETHER_ADDR_LEN);
4021 }
4022
4023 static int
4024 bnx_get_eaddr(struct bnx_softc *sc, uint8_t eaddr[])
4025 {
4026         static const bnx_eaddr_fcn_t bnx_eaddr_funcs[] = {
4027                 /* NOTE: Order is critical */
4028                 bnx_get_eaddr_mem,
4029                 bnx_get_eaddr_nvram,
4030                 bnx_get_eaddr_eeprom,
4031                 NULL
4032         };
4033         const bnx_eaddr_fcn_t *func;
4034
4035         for (func = bnx_eaddr_funcs; *func != NULL; ++func) {
4036                 if ((*func)(sc, eaddr) == 0)
4037                         break;
4038         }
4039         return (*func == NULL ? ENXIO : 0);
4040 }
4041
4042 /*
4043  * NOTE: 'm' is not freed upon failure
4044  */
4045 struct mbuf *
4046 bnx_defrag_shortdma(struct mbuf *m)
4047 {
4048         struct mbuf *n;
4049         int found;
4050
4051         /*
4052          * If device receive two back-to-back send BDs with less than
4053          * or equal to 8 total bytes then the device may hang.  The two
4054          * back-to-back send BDs must in the same frame for this failure
4055          * to occur.  Scan mbuf chains and see whether two back-to-back
4056          * send BDs are there.  If this is the case, allocate new mbuf
4057          * and copy the frame to workaround the silicon bug.
4058          */
4059         for (n = m, found = 0; n != NULL; n = n->m_next) {
4060                 if (n->m_len < 8) {
4061                         found++;
4062                         if (found > 1)
4063                                 break;
4064                         continue;
4065                 }
4066                 found = 0;
4067         }
4068
4069         if (found > 1)
4070                 n = m_defrag(m, MB_DONTWAIT);
4071         else
4072                 n = m;
4073         return n;
4074 }
4075
4076 static void
4077 bnx_stop_block(struct bnx_softc *sc, bus_size_t reg, uint32_t bit)
4078 {
4079         int i;
4080
4081         BNX_CLRBIT(sc, reg, bit);
4082         for (i = 0; i < BNX_TIMEOUT; i++) {
4083                 if ((CSR_READ_4(sc, reg) & bit) == 0)
4084                         return;
4085                 DELAY(100);
4086         }
4087 }
4088
4089 static void
4090 bnx_link_poll(struct bnx_softc *sc)
4091 {
4092         uint32_t status;
4093
4094         status = CSR_READ_4(sc, BGE_MAC_STS);
4095         if ((status & sc->bnx_link_chg) || sc->bnx_link_evt) {
4096                 sc->bnx_link_evt = 0;
4097                 sc->bnx_link_upd(sc, status);
4098         }
4099 }
4100
4101 static void
4102 bnx_enable_msi(struct bnx_softc *sc)
4103 {
4104         uint32_t msi_mode;
4105
4106         msi_mode = CSR_READ_4(sc, BGE_MSI_MODE);
4107         msi_mode |= BGE_MSIMODE_ENABLE;
4108         if (sc->bnx_flags & BNX_FLAG_ONESHOT_MSI) {
4109                 /*
4110                  * NOTE:
4111                  * 5718-PG105-R says that "one shot" mode
4112                  * does not work if MSI is used, however,
4113                  * it obviously works.
4114                  */
4115                 msi_mode &= ~BGE_MSIMODE_ONESHOT_DISABLE;
4116         }
4117         CSR_WRITE_4(sc, BGE_MSI_MODE, msi_mode);
4118 }
4119
4120 static uint32_t
4121 bnx_dma_swap_options(struct bnx_softc *sc)
4122 {
4123         uint32_t dma_options;
4124
4125         dma_options = BGE_MODECTL_WORDSWAP_NONFRAME |
4126             BGE_MODECTL_BYTESWAP_DATA | BGE_MODECTL_WORDSWAP_DATA;
4127 #if BYTE_ORDER == BIG_ENDIAN
4128         dma_options |= BGE_MODECTL_BYTESWAP_NONFRAME;
4129 #endif
4130         if (sc->bnx_asicrev == BGE_ASICREV_BCM5720) {
4131                 dma_options |= BGE_MODECTL_BYTESWAP_B2HRX_DATA |
4132                     BGE_MODECTL_WORDSWAP_B2HRX_DATA | BGE_MODECTL_B2HRX_ENABLE |
4133                     BGE_MODECTL_HTX2B_ENABLE;
4134         }
4135         return dma_options;
4136 }